A raw material mixing device for acrylic sheet preparation

Abstract

This utility model discloses a raw material mixing device for acrylic sheet preparation, belonging to the field of acrylic sheet production technology. It includes a support frame, a mixing tank rotatably mounted on the top of the support frame, a high-efficiency stirring component inside the mixing tank, an external rotation drive component outside the mixing tank, a cleaning component above the mixing tank, a lifting component on the support frame, and a sealing component on the top of the mixing tank. This utility model, through the high-efficiency stirring component and the external rotation drive component, creates a longitudinal turbulent flow field with internal spiral stirring blades, while the external mixing tank rotates in the opposite direction to generate a transverse circulation. The superposition of these two elements significantly enhances material convection and diffusion, greatly improving mixing uniformity. The lifting component drives the cleaning component to rise and fall, coordinating with the rotation of the tank body, simultaneously spraying the tank wall and stirring components, resulting in high cleaning efficiency and preventing material residue.

Description

Technical Field

[0001] This utility model belongs to the field of acrylic sheet production technology, specifically relating to a raw material mixing device for acrylic sheet preparation. Background Technology

[0002] Acrylic sheet is a type of sheet material polymerized from methyl methacrylate monomers. It is also known as polymethyl methacrylate sheet plexiglass. It has advantages such as high transparency, strong weather resistance, good processing performance, high hardness and strength, and environmental friendliness, and is therefore widely used in many fields.

[0003] The main production methods for acrylic sheets are casting and extrusion. When larger sizes or greater rigidity are required, casting is often used. When casting acrylic sheets, a mixture of chemical raw materials such as methyl methacrylate, benzoyl peroxide, waste plexiglass, and coloring pigments is generally used. The raw material liquid for acrylic sheet production is poured into a mixing device, and the liquid in the mixing device is stirred by a mixing pile.

[0004] Traditional mixing equipment often uses a single mixing roller to stir at the bottom, which cannot effectively distribute heat evenly and has low mixing efficiency. As a result, some raw materials will adhere to the vessel wall after the reaction, and manual cleaning is not only time-consuming and labor-intensive, but also inefficient. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a raw material mixing device for acrylic sheet preparation.

[0006] The technical solution adopted to solve the above-mentioned technical problems is: a raw material mixing device for acrylic sheet preparation, including a support frame, a mixing tank rotatably mounted on the top of the support frame, a high-efficiency stirring component inside the mixing tank, an external rotation drive component for driving the mixing tank to rotate outside the mixing tank, the external rotation drive component and the high-efficiency stirring component rotating in opposite directions, a cleaning component for cleaning the inner wall of the tank and the high-efficiency stirring component above the mixing tank, a lifting component for driving the cleaning component to rise and fall on the support frame, the cleaning component and the external rotation drive component cooperating to achieve cleaning, a sliding and closing sealing cap component on the top of the mixing tank, and a discharge pipe connected through the side wall of the mixing tank, the discharge pipe being equipped with a valve body.

[0007] Furthermore, the high-efficiency stirring assembly includes a motor one fixed to the bottom surface of the support frame, a rotating shaft fixed to the output end of the motor one, a spiral stirring blade one fixed to the side wall of the rotating shaft through the bottom of the stirring tank, and a spiral stirring blade two welded to the outer periphery of the spiral stirring blade one by a stirring rod, the spiral stirring blade one and the spiral stirring blade two spiral in opposite directions.

[0008] Through the above technical solution, the motor drives the rotating shaft, and the two spiral stirring blades adopt an anti-spiral layout to form a three-dimensional circulation path of "lifting up and sinking down", achieving full-volume coverage without dead corners, avoiding material deposition at the bottom or edge, and allowing materials in different layers to flow cross-flow fully, thereby improving the mixing uniformity.

[0009] Furthermore, the external rotation drive assembly includes an external tooth slewing bearing and a second motor. The external tooth slewing bearing includes an external tooth, an outer ring, and an inner ring. The inner ring is detachably connected to the support frame, and the lower end of the mixing tank is fixedly connected to the upper surface of the outer ring of the external tooth slewing bearing. The second motor is mounted on the bottom surface of the support frame, and a gear is installed at the output end of the second motor, which meshes with the external tooth.

[0010] Through the above technical solution, the second motor is started while mixing and stirring. The gear and external gear meshing drive the mixing tank to rotate in the opposite direction. Combined with the forward rotation of the high-efficiency stirring component, the double reverse rotation generates more complex fluid motion, significantly improving the mixing uniformity, shortening the mixing cycle, and ensuring the stability of product quality.

[0011] Furthermore, the cleaning assembly includes an annular tube and an arc-shaped cleaning brush. Several nozzles are equidistantly installed on the outer annular sidewall along the circumference, and several nozzles are equidistantly installed on the inner annular sidewall along the circumference. Several arc-shaped cleaning brushes are arranged circumferentially on the outside of the annular tube. Each arc-shaped cleaning brush has a locking clamp fixed to its inner arc surface, and the locking clamps are fixedly connected to the outer wall of the annular tube. The outer arc surface of the arc-shaped cleaning brush is in contact with the inner wall of the mixing tank.

[0012] Through the above technical solution, the annular tube integrates two rings of nozzles, one inside and one outside, which are directed at the inner wall and the central area of ​​the mixing tank, respectively. With the help of the external rotation drive component, the mixing tank is rotated. The arc-shaped cleaning brush mechanically scrapes the inner wall of the mixing tank, realizing a dual cleaning mode of "rinsing + scraping". It washes the inner wall and mixing components from multiple angles. With the control of the lifting component, it can move up and down to perform thorough cleaning and prevent material residue.

[0013] Furthermore, the lifting assembly includes an electric lifting rod and a telescopic rod vertically fixed to the bottom surface of the support frame. The top ends of both the electric lifting rod and the telescopic rod are fixedly connected to a connecting plate. A water supply pipe is fixedly connected through the bottom end of the connecting plate above the electric lifting rod. The bottom end of the water supply pipe is connected to the top end of the annular pipe. The upper end of the water supply pipe is connected to a water source through a flexible hose. A fixing rod is fixed between the bottom end of the connecting plate above the telescopic rod and the top end of the annular pipe.

[0014] Through the above technical solution, the electric lifting rod and the telescopic rod work together to provide stable lifting power. The water supply pipe is connected to the ring pipe for water supply, and the fixed rod maintains structural stability, ensuring that the cleaning head is always aligned with the target area. This makes the cleaning process highly automated, easy to operate, saves manpower, and cleans more thoroughly.

[0015] Furthermore, the lengths of the electric lifting rod, the telescopic rod, the movable rod, the water supply pipe, and the fixed rod are all not less than the height of the mixing tank.

[0016] The above technical solutions ensure full coverage of the inner wall and top corners of the container, eliminating the risk of cross-contamination.

[0017] Furthermore, the sealing assembly includes a frame and a cover plate. The frame is rotatably mounted on the top outer wall of the mixing tank. A support plate is fixedly connected to the side wall of the frame. The bottom end of the support plate is fixed to the surface of the support frame. A sliding groove and a limiting groove are formed on the upper surface of the frame. A slider is fixedly connected to the lower surface of the cover plate. The side wall of the slider is slidably connected to the inner side wall of the sliding groove. A locking plate is rotatably connected to the front wall of the cover plate. The locking plate is in a limiting fit with the limiting groove.

[0018] Through the above technical solution, the sliding groove and slider of the frame form a guiding mechanism, and the locking plate rotates and embeds into the limiting groove to achieve quick locking, which facilitates handling of emergencies and avoids the opening and closing mechanism occupying longitudinal space and obstructing the cleaning components.

[0019] The beneficial effects of this utility model are as follows: (1) By setting up a high-efficiency stirring component and an external rotation drive component, the internal spiral stirring blades form a longitudinal turbulent flow field, and the external stirring tank rotates in the opposite direction to generate a transverse circulation. The superposition of the two greatly enhances the material convection and diffusion, eliminates the vortex blind zone in the traditional single stirring mode, and significantly improves the mixing uniformity. (2) The lifting component and the cleaning component are set up. The lifting component drives the cleaning component to lift and lower, and the barrel rotates. At the same time, the barrel wall and the stirring component are sprayed and cleaned. When cleaning the barrel wall, the arc-shaped cleaning brush works with the spray to achieve a dual cleaning mode of "rinsing + scraping". The cleaning efficiency is high and material residue is prevented. Attached Figure Description

[0020] Figure 1 This is a perspective view of a raw material mixing device for preparing acrylic sheets according to this utility model; Figure 2 This is a cross-sectional view of a raw material mixing device for preparing acrylic sheets according to this utility model; Figure 3 This is a perspective view of a high-efficiency stirring component of a raw material mixing device for acrylic sheet preparation according to this utility model; Figure 4This is a structural diagram of the cleaning component of a raw material mixing device for acrylic sheet preparation according to this utility model; Figure 5 This is a structural diagram of the sealing component of a raw material mixing device for preparing acrylic sheets according to this utility model.

[0021] Reference numerals: 1. Mixing tank; 2. Support frame; 3. High-efficiency mixing assembly; 4. External rotation drive assembly; 5. Cleaning assembly; 6. Lifting assembly; 7. Covering assembly; 8. Discharge pipe; 301. Motor 1; 302. Rotating shaft; 303. Spiral mixing blade 1; 304. Spiral mixing blade 2; 305. Mixing roller; 401. External gear; 402. Motor 2; 403. Gear; 501. Annular pipe; 502. Nozzle 1; 503. Nozzle 2; 504. Arc-shaped cleaning brush; 505. Locking clamp; 601. Electric lifting rod; 602. Telescopic rod; 603. Connecting plate; 604. Water supply pipe; 605. Fixing rod; 701. Frame; 7011. Slide groove; 7012. Limiting groove; 702. Cover plate; 703. Sliding block; 704. Locking plate; 705. Support rod. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] like Figures 1-5 As shown, this embodiment of a raw material mixing device for acrylic sheet preparation includes a support frame 2, a mixing tank 1 rotatably mounted on the top of the support frame 2, a high-efficiency stirring component 3 inside the mixing tank 1, an external rotation drive component 4 for driving the mixing tank 1 to rotate outside the mixing tank 1, the external rotation drive component 4 and the high-efficiency stirring component 3 rotating in opposite directions, a cleaning component 5 for cleaning the inner wall of the tank and the high-efficiency stirring component 3 above the mixing tank 1, a lifting component 6 for driving the cleaning component 5 to rise and fall on the support frame 2, the cleaning component 5 and the external rotation drive component 4 cooperate to achieve cleaning, a sliding and closing sealing component 7 is provided on the top of the mixing tank 1, a discharge pipe 8 is connected through the side wall of the mixing tank 1, and a valve body is provided on the discharge pipe 8.

[0024] like Figure 2 and Figure 3As shown, the high-efficiency mixing component 3 includes a motor 301 fixed to the bottom surface of the support frame 2. The output end of the motor 301 is fixed to a rotating shaft 302. The side wall of the rotating shaft 302 passes through the bottom of the mixing tank 1 and is fixed to a spiral mixing blade 303. The spiral mixing blade 304 is welded and fixed around the outside of the spiral mixing blade 303 through a mixing rod 305. The spiral mixing blade 303 and the spiral mixing blade 304 have opposite spiral directions. The motor 301 drives the rotating shaft 302, which drives the spiral mixing blade 303, the spiral mixing blade 304 and the mixing rod 305 to rotate synchronously. The spiral mixing blade 303 and the spiral mixing blade 304 adopt an anti-spiral layout to form a three-dimensional circulation path of "lifting up and sinking down", achieving full-volume coverage without dead corners, avoiding material deposition at the bottom or edge, and allowing materials in different layers to flow cross-flow fully, improving the mixing uniformity. like Figure 1 As shown, the external rotation drive assembly 4 includes an external gear slewing bearing and a second motor 402. The external gear slewing bearing includes an external gear 401, an outer ring, and an inner ring. The inner ring is detachably connected to the support frame 2. The lower end of the mixing tank 1 is fixedly connected to the upper surface of the outer ring of the external gear slewing bearing. The second motor 402 is mounted on the bottom surface of the support frame 2. A gear 403 is installed at the output end of the second motor 402, and the gear 403 meshes with the external gear 401. While mixing and stirring, the second motor 402 is started. Through the meshing transmission of the gear 403 and the external gear 401, the mixing tank 1 is driven to rotate in the opposite direction. This, combined with the forward rotation of the high-efficiency stirring assembly 3, generates more complex fluid motion, accelerates material dispersion and mixing, reduces agglomeration, and improves mixing quality. The dynamic shearing effect generated by the reverse rotation can effectively break up particle agglomerates. It is especially suitable for high-viscosity or easily stratified acrylic raw material systems, significantly improving mixing uniformity, shortening the mixing cycle, and ensuring product quality stability. like Figure 4As shown, the cleaning assembly 5 includes an annular tube 501 and arc-shaped cleaning brushes 504. A plurality of nozzles 502 are equidistantly installed along the circumference of the outer annular tube 501, and a plurality of nozzles 503 are equidistantly installed along the circumference of the inner annular tube 501. Several arc-shaped cleaning brushes 504 are arranged circumferentially on the outer side of the annular tube 501. Locking clamps 505 are fixed to the inner arc surface of each arc-shaped cleaning brush 504, and are fixedly connected to the outer wall of the annular tube 501. The outer arc surface of the arc-shaped cleaning brushes 504 is in contact with the inner wall of the mixing tank 1. 501 integrates two rings of nozzles, 502 and 503, which are directed at the inner wall and central area of ​​the mixing tank 1, respectively. Together with the outer rotation drive component 4, the mixing tank 1 is driven to rotate. The arc-shaped cleaning brush 504 mechanically scrapes the inner wall of the mixing tank 1 to achieve a dual cleaning mode of "rinsing + scraping". The rotating nozzle 503 cleans the spiral stirring, rotating shaft 302 and stirring rod 305, and rinses the inner wall and stirring components from multiple angles. With the control of the lifting component 6, it can move up and down to perform thorough cleaning and prevent material residue from causing pollution or clogging of the discharge pipe 8. like Figure 2 and Figure 4 As shown, the lifting assembly 6 includes an electric lifting rod 601 and a telescopic rod 602 vertically fixed to the bottom surface of the support frame 2. The top ends of both the electric lifting rod 601 and the telescopic rod 602 are fixedly connected to a connecting plate 603. A water supply pipe 604 is fixedly connected through the bottom end of the connecting plate 603 above the electric lifting rod 601. The bottom end of the water supply pipe 604 is connected to the top end of the annular pipe 501. The upper end of the water supply pipe 604 is connected to a water source through a flexible hose. A fixing rod 605 is fixed between the bottom end of the connecting plate 603 above the telescopic rod 602 and the top end of the annular pipe 501.

[0025] The electric lifting rod 601 and the telescopic rod 602 work together to provide stable lifting power. The water supply pipe 604 is connected to the ring pipe 501 to supply water. The fixed rod 605 maintains structural stability and ensures that the cleaning head is always aligned with the target area, making the cleaning process highly automated, easy to operate, saving manpower, and cleaning more thoroughly. The lengths of the movable rods of the electric lifting rod 601 and telescopic rod 602, as well as the lengths of the water supply pipe 604 and fixed rod 605, are not less than the height of the mixing tank 1, ensuring full coverage of the inner wall and top corners of the tank and eliminating the risk of cross-contamination. The sealing assembly 7 includes a frame 701 and a cover plate 702. The frame 701 is rotatably mounted on the top outer wall of the mixing tank 1. A support plate 705 is fixedly connected to the side wall of the frame 701, and the bottom end of the support plate 705 is fixed to the surface of the support frame 2. A sliding groove 7011 and a limiting groove 7012 are formed on the upper surface of the frame 701. A slider 703 is fixedly connected to the lower surface of the cover plate 702. The side wall of the slider 703 is slidably connected to the inner side wall of the sliding groove 7011. The front wall of the cover plate 702 rotates. A locking plate 704 is connected, which engages with a limiting groove 7012. The sliding groove 7011 of the frame 701 and the slider 703 form a guiding mechanism. The locking plate 704 rotates and embeds into the limiting groove 7012 to achieve quick locking. In the closed state, the bottom contact is tightly sealed to prevent the escape of volatile monomers and the spillage of dust. The sliding rail structure supports quick one-handed opening and closing, which is convenient for handling emergencies. At the same time, it avoids the vertical space occupied by the opening and closing mechanism, which would obstruct the cleaning component 5. When feeding, the locking plate 704 is rotated to disengage from the limiting groove 7012, and the sliding cover 702 exposes the opening of the mixing tank 1. The opening and closing is convenient.

[0026] The working principle of this embodiment is as follows: When in use, the raw materials are poured into the mixing tank 1, the sliding cover plate 702 is used to seal the opening of the tank, the locking plate 704 is rotated and slid into the limiting groove 7012 to complete the locking, the motor 1 301 and the motor 2 402 are started, the motor 1 301 drives the rotating shaft 302, and drives the spiral stirring blade 1 303, the spiral stirring blade 2 304 and the stirring rod 305 to rotate synchronously. The spiral stirring blade 1 303 and the spiral stirring blade 2 304 adopt an anti-spiral layout to form a longitudinal turbulent flow field. The motor 2 402 drives the mixing tank 1 to rotate in the opposite direction through the meshing transmission of the gear 403 and the external gear 401, generating a transverse circulation. The superposition of the two greatly enhances the material convection and diffusion, eliminating the vortex blind zone in the traditional single stirring mode. After the stirring is completed, the valve body is opened and the raw materials are discharged from the discharge pipe 8. After the material is discharged, the lock is released, the sliding cover 702 exposes the opening of the barrel, the electric lifting rod 601 retracts the movable rod, and the cleaning component 5 enters the barrel. The external water supply system delivers water to the annular pipe 501 through the water pipe 604. The annular pipe 501 integrates two rings of nozzles, one 502 and the other 503. With the rotation of the barrel, the arc-shaped cleaning brush 504 mechanically scrapes the inner wall of the mixing barrel 1, and the nozzle 502 sprays water on the barrel wall to achieve dual cleaning of "rinsing + scraping". The nozzle 503 cleans the mixing components, rinsing the inner wall and mixing components from multiple angles. With the control of the lifting component 6, it can move up and down to perform thorough cleaning and prevent material residue.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. A raw material mixing device for acrylic sheet production comprising a support frame (2), characterized in that: The top of the support frame (2) is rotatably mounted with a mixing tank (1). The mixing tank (1) is equipped with a high-efficiency mixing component (3). The outside of the mixing tank (1) is equipped with an external rotation drive component (4) that drives the mixing tank (1) to rotate. The external rotation drive component (4) and the high-efficiency mixing component (3) rotate in opposite directions. The top of the mixing tank (1) is equipped with a cleaning component (5) that cleans the inner wall of the tank and the high-efficiency mixing component (3). The support frame (2) is equipped with a lifting component (6) that drives the cleaning component (5) to rise and fall. The cleaning component (5) and the external rotation drive component (4) work together to achieve cleaning. The top of the mixing tank (1) is equipped with a sliding and closing sealing component (7). The side wall of the mixing tank (1) is connected to a discharge pipe (8). The discharge pipe (8) is equipped with a valve body.

2. The raw material mixing device for producing an acrylic plate according to claim 1, wherein The high-efficiency stirring assembly (3) includes a motor (301) fixed to the bottom surface of the support frame (2). The output end of the motor (301) is fixed to a rotating shaft (302). The side wall of the rotating shaft (302) passes through the bottom end of the stirring tank (1) and is fixed to a spiral stirring blade (303). The spiral stirring blade (304) is welded and fixed around the outside of the spiral stirring blade (303) by a stirring rod (305). The spiral stirring blade (303) and the spiral stirring blade (304) are in opposite directions.

3. The raw material mixing device for producing an acrylic plate according to claim 1, wherein The external rotation drive assembly (4) includes an external tooth slewing bearing and a second motor (402). The external tooth slewing bearing includes an external tooth (401), an outer ring, and an inner ring. The inner ring is detachably connected to the support frame (2). The lower end of the mixing tank (1) is fixedly connected to the upper surface of the outer ring of the external tooth slewing bearing. The second motor (402) is mounted on the bottom surface of the support frame (2). A gear (403) is installed at the output end of the second motor (402). The gear (403) meshes with the external tooth (401).

4. The raw material mixing device for producing an acrylic plate according to claim 1, wherein The cleaning assembly (5) includes an annular tube (501) and an arc-shaped cleaning brush (504). Several nozzles (502) are installed at equal intervals along the circumference on the outer ring sidewall of the annular tube (501). Several nozzles (503) are installed at equal intervals along the circumference on the inner ring sidewall of the annular tube (501). Several arc-shaped cleaning brushes (504) are provided and arranged along the circumference on the outside of the annular tube (501). Locking clamps (505) are fixed on the inner arc surface of each arc-shaped cleaning brush (504). The locking clamps (505) are fixedly connected to the outer wall of the annular tube (501). The outer arc surface of the arc-shaped cleaning brush (504) is in contact with the inner wall of the mixing tank (1).

5. The raw material mixing device for producing an acrylic plate according to claim 4, wherein The lifting assembly (6) includes an electric lifting rod (601) and a telescopic rod (602) vertically fixed to the bottom surface of the support frame (2). The top ends of the electric lifting rod (601) and the telescopic rod (602) are both fixed with a connecting plate (603). The bottom end of the connecting plate (603) above the electric lifting rod (601) is fixed with a water supply pipe (604). The bottom end of the water supply pipe (604) is connected to the top end of the annular pipe (501). The upper end of the water supply pipe (604) is connected to a water source through a flexible hose. A fixing rod (605) is fixed between the bottom end of the connecting plate (603) above the telescopic rod (602) and the top end of the annular pipe (501).

6. The raw material mixing device for producing an acrylic plate according to claim 5, wherein The lengths of the movable rods of the electric lifting rod (601), the telescopic rod (602), the water supply pipe (604), and the fixed rod (605) are all not less than the height of the mixing tank (1).

7. The raw material mixing device for producing an acrylic plate according to claim 1, wherein The sealing assembly (7) includes a frame (701) and a cover plate (702). The frame (701) is rotatably mounted on the top outer wall of the mixing tank (1). A support plate (705) is fixedly connected to the side wall of the frame (701). The bottom end of the support plate (705) is fixed to the surface of the support frame (2). A sliding groove (7011) and a limiting groove (7012) are provided on the upper surface of the frame (701). A slider (703) is fixedly connected to the lower surface of the cover plate (702). The side wall of the slider (703) is slidably connected to the inner side wall of the sliding groove (7011). A locking plate (704) is rotatably connected to the front wall of the cover plate (702). The locking plate (704) is limited and engaged with the limiting groove (7012).

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