Raw material mixing device for preparing polyvinyl butyral resin

Abstract

The utility model discloses a raw material mixing device for polyvinyl butyral resin preparation, which belongs to the technical field of polyvinyl butyral resin preparation, and comprises a mixing barrel, a feeding pipe is communicated with the outer surface of the mixing barrel, a discharging pipe is communicated with the lower surface of the mixing barrel, and the feeding pipe is communicated with the discharging pipe. A grinding assembly is arranged on the inner wall of the mixing barrel; according to the grinding device, the grinding assembly is arranged, a rotating rod drives a grinding roller to rotate on a filtering plate, so that caked raw materials are smashed, a sliding sleeve can move up and down on the outer surface of a reciprocating lead screw under the action of threads, and a scraping ring is driven by a connecting rod to synchronously move up and down under the limiting of a limiting block and a limiting groove; according to the raw material mixing device, raw materials adhered to the interior of the mixing barrel are scraped, the automatic grinding function of the raw material mixing device is achieved, the situation that the raw materials are agglomerated is avoided, the mixing uniformity and mixing quality of the mixing device are improved, and then the preparation quality of polyvinyl butyral resin is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of polyvinyl butyral resin preparation technology, and particularly relates to a raw material mixing device for preparing polyvinyl butyral resin. Background Technology

[0002] Polyvinyl butyral is a product of the condensation of polyvinyl alcohol and butyraldehyde under acid catalysis. Due to the long branched chain of PVB molecules, it has good flexibility, low glass transition temperature, high tensile strength and impact strength. PVB also has excellent transparency, good solubility, and good light resistance, water resistance, heat resistance, cold resistance and film-forming properties.

[0003] In the preparation of polyvinyl butyral resin, raw materials and catalysts are poured into an apparatus for reaction. In order to ensure the efficiency and uniformity of the reaction, a mixing device is required to mix the raw materials. Most of the current raw material mixing devices simply stir the raw materials. When the raw materials clump together, it not only reduces the mixing efficiency of the raw material mixing device, but also reduces the mixing quality of the raw materials. Therefore, a raw material mixing device for the preparation of polyvinyl butyral resin is provided. Utility Model Content

[0004] The purpose of this invention is to provide a raw material mixing device for the preparation of polyvinyl butyral resin in order to solve the problem that current mixing devices cannot crush agglomerated raw materials.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a raw material mixing device for preparing polyvinyl butyral resin, comprising a mixing tank, an inlet pipe connected to the outer surface of the mixing tank, an outlet pipe connected to the lower surface of the mixing tank, a one-way valve fixedly installed on the inner wall of the outlet pipe, an installation cover fixedly installed on the upper surface of the mixing tank, a servo motor fixedly installed on the inner wall of the installation cover, a grinding assembly provided on the inner wall of the mixing tank, and a stirring assembly provided on the lower surface of the mixing tank;

[0006] The grinding assembly includes a filter plate and a fixed toothed ring. The outer surfaces of the filter plate and the fixed toothed ring are fixedly connected to the inner wall of the mixing tank. A fixed block is rotatably mounted on the upper surface of the filter plate. A rotating rod is rotatably mounted on the outer surface of the fixed block. A grinding roller and a transmission gear are fixedly mounted on the outer surface of the rotating rod.

[0007] As a further description of the above technical solution:

[0008] The transmission gear meshes with the fixed gear ring, the outer surface of the grinding roller is in contact with the upper surface of the filter plate, and a reciprocating screw is fixedly installed on the inner wall of the fixed block.

[0009] As a further description of the above technical solution:

[0010] One end of the reciprocating screw extends into the interior of the mounting cover, and the other end of the reciprocating screw extends to the outside of the lower surface of the filter plate. One end of the reciprocating screw is fixedly connected to the output end of the servo motor. A sliding sleeve is threaded onto the outer surface of the reciprocating screw, and a connecting rod is fixedly installed on the outer surface of the sliding sleeve.

[0011] As a further description of the above technical solution:

[0012] A scraper ring is fixedly installed at one end of the connecting rod, a limit block is fixedly installed on the outer surface of the scraper ring, a limit groove is provided on the inner wall of the mixing tank, and the outer surface of the limit block is slidably connected to the inner wall of the limit groove.

[0013] As a further description of the above technical solution:

[0014] The stirring assembly includes a rotating column, one end of which is fixedly connected to the other end of a reciprocating lead screw. A stirring rod is fixedly installed on the outer surface of the rotating rod, and a vibration assembly is provided on the outer surface of the rotating rod.

[0015] As a further description of the above technical solution:

[0016] The vibration assembly includes a fixed sleeve and a mounting plate. The inner wall of the fixed sleeve is fixedly connected to the outer surface of the rotating column. A fixed rod is fixedly installed on the outer surface of the fixed sleeve, and a fixed ring is fixedly installed at one end of the fixed rod.

[0017] As a further description of the above technical solution:

[0018] The upper surface of the fixing ring is fixedly equipped with a protrusion, the side wall of the mounting plate is fixedly connected to the inner wall of the mixing tank, and the lower surface of the mounting plate is fixedly equipped with a connecting spring.

[0019] As a further description of the above technical solution:

[0020] An installation ring is fixedly installed at one end of the connecting spring, and a striking rod is fixedly installed on the inner wall of the installation ring. One end of the striking rod passes through the interior of the connecting spring and extends to the outside of the upper surface of the mounting plate. One end of the striking rod contacts the lower surface of the filter plate.

[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0022] 1. In this utility model, a grinding assembly is provided. Raw materials for preparing polyvinyl butyral resin are injected into the mixing tank through a feed pipe. A servo motor inside the housing drives a reciprocating screw to rotate. This rotation of the screw causes a fixed block to rotate synchronously. The fixed block, through a rotating rod, drives a transmission gear to rotate below a fixed gear ring. This transmission gear, in turn, drives the rotating rod to rotate, causing a grinding roller to rotate on a filter plate, thus crushing the agglomerated raw materials. A sliding sleeve moves up and down on the outer surface of the reciprocating screw under the action of a threaded connection. Through a connecting rod, a scraper ring moves up and down synchronously under the control of a limiting block and a limiting groove, scraping off the raw materials adhering to the inside of the mixing tank. The crushed raw materials fall below the filter plate, achieving an automatic grinding function in the raw material mixing device. This prevents the raw materials from clumping, improves the mixing uniformity and quality of the mixing device, and ultimately ensures the quality of the prepared polyvinyl butyral resin.

[0023] 2. In this utility model, by providing a striking component, the rotating column drives the fixed sleeve to rotate synchronously when it rotates, and the fixed ring drives the fixed rod to rotate synchronously. As the fixed ring rotates, it drives the protrusion to rotate synchronously. At this time, the striking rod moves up and down inside the mounting plate under the action of the connecting spring and the mounting ring, thereby striking the filter plate. The filter plate will vibrate when struck, thereby shaking the raw material off the filter plate. After the raw material has reacted completely, it is discharged through the discharge pipe. This improves the efficiency of grinding agglomerated raw materials and getting them off the filter plate, thereby improving the mixing efficiency of the mixing device. At the same time, the vibration can prevent the filter plate pores from becoming blocked, ensuring the working stability of the mixing device. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of a raw material mixing device for the preparation of polyvinyl butyral resin.

[0025] Figure 2 This is a partially exploded structural diagram of a raw material mixing device for the preparation of polyvinyl butyral resin.

[0026] Figure 3 This is a schematic cross-sectional view of the mixing tank in a raw material mixing device for preparing polyvinyl butyral resin.

[0027] Figure 4 In a raw material mixing device for the preparation of polyvinyl butyral resin Figure 3 A magnified structural diagram of point A in the middle.

[0028] Legend:

[0029] 1. Mixing tank; 2. Feed pipe; 3. Discharge pipe; 4. Mounting cover; 5. Grinding assembly; 51. Reciprocating screw; 52. Sliding sleeve; 53. Connecting rod; 54. Scraper ring; 55. Limiting block; 56. Fixing block; 57. Rotating rod; 58. Grinding roller; 59. Transmission gear; 510. Filter plate; 511. Fixing gear ring; 6. Stirring assembly; 61. Rotating column; 62. Stirring rod; 7. Vibration assembly; 71. Fixing sleeve; 72. Fixing rod; 73. Fixing ring; 74. Protrusion; 75. Mounting plate; 76. Connecting spring; 77. Mounting ring; 78. Striking rod; 8. Limiting groove. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figures 1-4 This utility model provides a technical solution: a raw material mixing device for preparing polyvinyl butyral resin, including a mixing tank 1, an inlet pipe 2 connected to the outer surface of the mixing tank 1, an outlet pipe 3 connected to the lower surface of the mixing tank 1, a one-way valve fixedly installed on the inner wall of the outlet pipe 3, an installation cover 4 fixedly installed on the upper surface of the mixing tank 1, a servo motor fixedly installed on the inner wall of the installation cover 4, a grinding component 5 provided on the inner wall of the mixing tank 1, and a stirring component 6 provided on the lower surface of the mixing tank 1;

[0032] The grinding assembly 5 includes a filter plate 510 and a fixed gear ring 511. The outer surfaces of both the filter plate 510 and the fixed gear ring 511 are fixedly connected to the inner wall of the mixing tank 1. A fixing block 56 is rotatably mounted on the upper surface of the filter plate 510. A rotating rod 57 is rotatably mounted on the outer surface of the fixing block 56. A grinding roller 58 and a transmission gear 59 are fixedly mounted on the outer surface of the rotating rod 57. The transmission gear 59 meshes with the fixed gear ring 511. The outer surface of the grinding roller 58 is in contact with the upper surface of the filter plate 510. A reciprocating screw 51 is fixedly mounted on the inner wall of the fixing block 56. One end of the reciprocating screw 51 extends into the interior of the mounting cover 4, and the other end of the reciprocating screw 51 extends to the lower surface of the filter plate 510. One end of the reciprocating screw 51 is fixedly connected to the output end of the servo motor. A sliding sleeve 52 is threaded onto the outer surface of the reciprocating screw 51. A connecting rod 53 is fixedly installed on the outer surface of the sliding sleeve 52. A scraper ring 54 is fixedly installed at one end of the connecting rod 53. A limiting block 55 is fixedly installed on the outer surface of the scraper ring 54. A limiting groove 8 is provided on the inner wall of the mixing tank 1. The outer surface of the limiting block 55 is slidably connected to the inner wall of the limiting groove 8.

[0033] The specific implementation method is as follows: raw materials for preparing polyvinyl butyral resin are injected into the mixing tank 1 through the feed pipe 2. Then, the servo motor in the mounting cover 4 drives the reciprocating screw 51 to rotate. As the reciprocating screw 51 rotates, it drives the fixed block 56 to rotate synchronously. At this time, the fixed block 56 drives the transmission gear 59 to rotate below the fixed gear ring 511 through the rotating rod 57. The transmission gear 59 drives the rotating rod 57 to rotate. The rotating rod 57 drives the grinding roller 58 to rotate on the filter plate 510, thereby crushing the agglomerated raw materials. Under the action of the thread, the sliding sleeve 52 moves up and down on the outer surface of the reciprocating screw 51. Through the connecting rod 53, it drives the scraper ring 54 to move up and down synchronously under the limit of the limiting block 55 and the limiting groove 8, thereby scraping off the raw materials adhering to the inside of the mixing tank 1. The crushed raw materials fall below the filter plate 510.

[0034] The stirring assembly 6 includes a rotating column 61, one end of which is fixedly connected to the other end of a reciprocating screw 51. A stirring rod 62 is fixedly installed on the outer surface of the rotating rod 57, and a vibration assembly 7 is provided on the outer surface of the rotating rod 57.

[0035] The specific implementation method is as follows: when the reciprocating screw 51 rotates, it will drive the rotating column 61 to rotate synchronously. At this time, the rotating column 61 drives the stirring rod 62 to mix the raw materials.

[0036] The vibration assembly 7 includes a fixed sleeve 71 and a mounting plate 75. The inner wall of the fixed sleeve 71 is fixedly connected to the outer surface of the rotating column 61. A fixed rod 72 is fixedly installed on the outer surface of the fixed sleeve 71. A fixed ring 73 is fixedly installed at one end of the fixed rod 72. A protrusion 74 is fixedly installed on the upper surface of the fixed ring 73. The side wall of the mounting plate 75 is fixedly connected to the inner wall of the mixing tank 1. A connecting spring 76 is fixedly installed on the lower surface of the mounting plate 75. A mounting ring 77 is fixedly installed at one end of the connecting spring 76. A striking rod 78 is fixedly installed on the inner wall of the mounting ring 77. One end of the striking rod 78 passes through the interior of the connecting spring 76 and extends to the outside of the upper surface of the mounting plate 75. One end of the striking rod 78 contacts the lower surface of the filter plate 510.

[0037] The specific implementation method is as follows: When the rotating column 61 rotates, it will drive the fixed sleeve 71 to rotate synchronously. The fixed rod 72 drives the fixed ring 73 to rotate synchronously. As the fixed ring 73 rotates, it will drive the protrusion 74 to rotate synchronously. At this time, the striking rod 78 will move up and down in the mounting plate 75 under the action of the connecting spring 76 and the mounting ring 77, thereby striking the filter plate 510. The filter plate 510 will vibrate when struck, thereby shaking the raw material off the filter plate 510. After the raw material has reacted completely, it will be discharged through the discharge pipe 3.

[0038] Working principle: Raw materials for preparing polyvinyl butyral resin are injected into mixing tank 1 through feed pipe 2. Then, the servo motor inside the mounting cover 4 drives the reciprocating screw 51 to rotate. As the reciprocating screw 51 rotates, it drives the fixed block 56 to rotate synchronously. At this time, the fixed block 56 drives the transmission gear 59 to rotate below the fixed gear ring 511 through the rotating rod 57. The transmission gear 59 drives the rotating rod 57 to rotate, and the rotating rod 57 drives the grinding roller 58 to rotate on the filter plate 510, thereby crushing the agglomerated raw materials. Under the action of the thread, the sliding sleeve 52 moves up and down on the outer surface of the reciprocating screw 51. Through the connecting rod 53, it drives the scraper ring 54 to move up and down synchronously under the limit of the limiting block 55 and the limiting groove 8, thereby crushing the raw materials. The raw material adhering to the inside of the mixing tank 1 is scraped off, and the crushed raw material falls below the filter plate 510. When the reciprocating screw 51 rotates, it drives the rotating column 61 to rotate synchronously. At this time, the rotating column 61 drives the stirring rod 62 to mix the raw material. When the rotating column 61 rotates, it drives the fixing sleeve 71 to rotate synchronously. The fixing rod 72 drives the fixing ring 73 to rotate synchronously. As the fixing ring 73 rotates, it drives the protrusion 74 to rotate synchronously. At this time, the striking rod 78 moves up and down in the mounting plate 75 under the action of the connecting spring 76 and the mounting ring 77, thereby striking the filter plate 510. The filter plate 510 will vibrate when struck, thereby shaking the raw material off the filter plate 510. After the raw material has reacted completely, it is discharged through the discharge pipe 3.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A raw material mixing device for preparing polyvinyl butyral resin, comprising a mixing tank (1), characterized in that: The outer surface of the mixing tank (1) is connected to the feed pipe (2), the lower surface of the mixing tank (1) is connected to the discharge pipe (3), the inner wall of the discharge pipe (3) is fixedly installed with a one-way valve, the upper surface of the mixing tank (1) is fixedly installed with an installation cover (4), the inner wall of the installation cover (4) is fixedly installed with a servo motor, the inner wall of the mixing tank (1) is provided with a grinding component (5), and the lower surface of the mixing tank (1) is provided with a stirring component (6). The grinding assembly (5) includes a filter plate (510) and a fixed toothed ring (511). The outer surfaces of the filter plate (510) and the fixed toothed ring (511) are fixedly connected to the inner wall of the mixing tank (1). A fixed block (56) is rotatably mounted on the upper surface of the filter plate (510). A rotating rod (57) is rotatably mounted on the outer surface of the fixed block (56). A grinding roller (58) and a transmission gear (59) are fixedly mounted on the outer surface of the rotating rod (57).

2. The raw material mixing device for preparing polyvinyl butyral resin according to claim 1, characterized in that, The transmission gear (59) meshes with the fixed gear ring (511), the outer surface of the grinding roller (58) is in contact with the upper surface of the filter plate (510), and a reciprocating screw (51) is fixedly installed on the inner wall of the fixed block (56).

3. The raw material mixing device for preparing polyvinyl butyral resin according to claim 2, characterized in that, One end of the reciprocating screw (51) extends into the interior of the mounting cover (4), and the other end of the reciprocating screw (51) extends to the outside of the lower surface of the filter plate (510). One end of the reciprocating screw (51) is fixedly connected to the output end of the servo motor. A sliding sleeve (52) is threaded on the outer surface of the reciprocating screw (51), and a connecting rod (53) is fixedly installed on the outer surface of the sliding sleeve (52).

4. The raw material mixing device for preparing polyvinyl butyral resin according to claim 3, characterized in that, A scraper ring (54) is fixedly installed at one end of the connecting rod (53). A limiting block (55) is fixedly installed on the outer surface of the scraper ring (54). A limiting groove (8) is provided on the inner wall of the mixing tank (1). The outer surface of the limiting block (55) is slidably connected to the inner wall of the limiting groove (8).

5. The raw material mixing device for preparing polyvinyl butyral resin according to claim 4, characterized in that, The stirring assembly (6) includes a rotating column (61), one end of which is fixedly connected to the other end of a reciprocating screw (51), a stirring rod (62) is fixedly installed on the outer surface of the rotating rod (57), and a vibration assembly (7) is provided on the outer surface of the rotating rod (57).

6. The raw material mixing apparatus for preparing polyvinyl butyral resin according to claim 5, characterized in that, The vibration assembly (7) includes a fixed sleeve (71) and a mounting plate (75). The inner wall of the fixed sleeve (71) is fixedly connected to the outer surface of the rotating column (61). A fixed rod (72) is fixedly installed on the outer surface of the fixed sleeve (71), and a fixed ring (73) is fixedly installed at one end of the fixed rod (72).

7. The raw material mixing apparatus for preparing polyvinyl butyral resin according to claim 6, characterized in that, The upper surface of the fixing ring (73) is fixedly installed with a protrusion (74), the side wall of the mounting plate (75) is fixedly connected to the inner wall of the mixing tank (1), and the lower surface of the mounting plate (75) is fixedly installed with a connecting spring (76).

8. The raw material mixing apparatus for preparing polyvinyl butyral resin according to claim 7, characterized in that, One end of the connecting spring (76) is fixedly mounted with an installation ring (77), and a striking rod (78) is fixedly mounted on the inner wall of the installation ring (77). One end of the striking rod (78) passes through the interior of the connecting spring (76) and extends to the outside of the upper surface of the mounting plate (75). One end of the striking rod (78) contacts the lower surface of the filter plate (510).

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