Dispersing kettle for producing waterborne polyurethane coating

Abstract

The utility model relates to a dispersion kettle for producing a waterborne polyurethane coating, and relates to the technical field of dispersion kettles. The device comprises a stirring rod and a working barrel with a top opening, the stirring rod is vertically inserted into the working barrel, the top of the working barrel is provided with a rotating motor, the rotating motor and the top end of the stirring rod are coaxially fixed, the rotating motor is used for driving the stirring rod to rotate, the stirring rod is sleeved with a stirring disc, and a moving groove is formed in the side wall of the stirring rod in the vertical direction; a moving block is fixed to the inner wall of the stirring disc, the moving block is inserted into the moving groove and can move in the moving groove, a driving assembly is arranged on the working barrel, the driving assembly is connected with the stirring disc, and the driving assembly is used for driving the stirring disc to move up and down. The paint mixing device has the effect of relatively high working efficiency of mixed paint after stirring and dispersing.

Description

Technical Field

[0001] The present application relates to the field of dispersion kettles, and in particular to a dispersion kettle for the production of waterborne polyurethane coatings. Background Art

[0002] In the field of coating production, the dispersion kettle is one of the key equipment, which is used to disperse and mix coating raw materials to ensure the uniformity and stability of the coatings.

[0003] In the related art, a Chinese patent with the publication number CN103041730A discloses a high-speed dispersion kettle, which includes a cylinder with a "U"-shaped cross-section. A cover is fixedly connected above the cylinder through bolts. A motor base is fixed in the middle of the cover. The motor is connected to the dispersion shaft through a coupling. The dispersion shaft passes through the center of the cover and vertically inserts into the interior of the cylinder. A dispersion disk is fixed at the lower end of the dispersion shaft. The feed inlet of the cylinder is placed on the roof, and the feed pipe passes through the cover and inserts into the cylinder.

[0004] When the dispersion disk stirs and disperses the materials in the cylinder, it can only act on the materials at the position where the dispersion disk is located. Only relying on this dispersion disk to stir and disperse the materials in the whole cylinder, the working efficiency is relatively low, so it needs to be improved. Utility Model Content

[0005] In order to improve the problem that the working efficiency of the dispersion disk with a fixed height for stirring and dispersing the materials in the whole cylinder is relatively low, the present application provides a dispersion kettle for the production of waterborne polyurethane coatings.

[0006] A dispersion kettle for the production of waterborne polyurethane coatings provided by the present application adopts the following technical scheme:

[0007] A dispersion kettle for the production of waterborne polyurethane coatings includes a stirring rod and a working cylinder with an open top. The stirring rod is vertically inserted into the working cylinder. A rotating motor is arranged at the top of the working cylinder. The rotating motor is coaxially fixed with the top end of the stirring rod. The rotating motor is used to drive the stirring rod to rotate self. A stirring disk is sleeved on the stirring rod. A moving groove is opened on the side wall of the stirring rod in the vertical direction. A moving block is fixed on the inner wall of the stirring disk. The moving block is inserted into the moving groove and can move in the moving groove. A driving assembly is arranged on the working cylinder. The driving assembly is connected with the stirring disk. The driving assembly is used to drive the stirring disk to move up and down.

[0008] By adopting the above technical solution, during use, the coating is poured into the working cylinder from the top opening of the working cylinder. Then, the rotating motor is started to drive the stirring rod to rotate. Since the inner wall of the moving groove abuts against the moving block, the stirring rod will drive the moving block to rotate when rotating, thereby driving the stirring disk to rotate, so as to realize the stirring and mixing of the coating in the working cylinder. When the stirring disk rotates, the driving assembly moves in a circular motion relative to the stirring disk. During this process, the driving assembly is started at the same time to drive the stirring disk to move in the vertical direction, so that the stirring disk moves up and down while rotating, and further enables the stirring disk to conveniently stir the coating at different positions in the working cylinder, reducing the possibility of the coating in the working cylinder having a mixing dead angle, thereby improving the dispersion efficiency of the working cylinder.

[0009] Optionally, the driving assembly includes a cylinder, a driving rod and a connecting rod. The cylinder is arranged on the top wall of the working cylinder. The output end of the cylinder is fixed to the driving rod. The cylinder is used to drive the driving rod to move up and down. The connecting rod is vertically inserted into the working cylinder. The top end of the connecting rod is fixed to the driving rod, and the bottom end is slidably connected to the side wall of the stirring disk.

[0010] By adopting the above technical solution, the cylinder is started to drive the driving rod to move up and down, thereby driving the connecting rod to move, so that the stirring disk moves in the vertical direction. To adjust the height of the stirring disk, when the stirring disk rotates, the bottom end of the connecting rod moves in a circular motion around the stirring rod on the side wall of the stirring disk, so that the connecting rod and the stirring disk are always in a connected state.

[0011] Optionally, a positioning rod is fixed on the driving rod. The positioning rod is inserted into the working cylinder and is parallel to the connecting rod. Connecting blocks are arranged at one ends of the positioning rod and the connecting rod close to the stirring disk. A ring groove is formed on the side wall of the stirring disk. The connecting block is inserted into the ring groove and can move in the ring groove.

[0012] By adopting the above technical solution, the driving rod is connected to the stirring disk through the connecting rod and the positioning rod, that is, the stirring disk is lifted by two points of force, so that the stirring disk is not easy to tilt or break away from the connecting rod, thereby making the connection between the driving rod and the stirring disk more stable. When the stirring disk rotates, the connecting block moves relative to the ring groove. At this time, the connecting block and the ring groove cooperate, so that the connecting rod and the positioning rod always maintain a connection relationship with the stirring disk without affecting the rotation of the stirring disk.

[0013] Optionally, saw teeth are arranged on the circumferential side wall of the stirring disk.

[0014] By adopting the above technical solution, the saw teeth can increase the shearing force during the rotation and stirring process of the stirring disk, thereby accelerating the mixing and dispersion of the coating, and thus improving the stirring efficiency.

[0015] Optionally, two mounting rods are arranged inside the stirring rod. The two mounting rods are arranged vertically. A shielding belt is sleeved on the two mounting rods. The shielding belt can move on the mounting rods. One side of the shielding belt is inserted into the moving groove and can move in the moving groove. The shielding belt is used to block the moving groove. The moving block is fixed to the shielding belt.

[0016] By adopting the above technical solution, the shielding belt covers the moving groove, so that the rest of the positions in the moving groove except where the moving block is located are in a closed state, so that the paint in the working cylinder will not get stuck in the moving groove and affect the movement of the moving block. When the stirring disc moves vertically, that is, the moving block moves in the moving groove, driving the shielding belt to move, so that the shielding belt makes a cyclic movement around the two mounting rods. The movement of the shielding belt in the moving groove makes the shielding belt always cover the moving groove.

[0017] Optionally, a cover plate is hinged to the top of the working cylinder. The cover plate can rotate to abut against the top wall of the working cylinder to block the top opening of the working cylinder.

[0018] By adopting the above technical solution, when the stirring rod and the stirring disc stir the paint, the cover plate is flipped towards the working cylinder, so that the cover plate blocks the top opening of the working cylinder, so that the paint is not easy to overflow from the working cylinder.

[0019] Optionally, a plurality of support rods are fixed to the top of the working cylinder. The support rods are horizontally arranged and are on the same horizontal plane as the top wall of the working cylinder.

[0020] By adopting the above technical solution, when the cover plate is flipped to abut against the top wall of the working cylinder, a plurality of support rods also abut against the cover plate, so as to provide support for the cover plate so that the cover plate can stably cover the working cylinder.

[0021] Optionally, magnets are arranged at the edge of the cover plate. The magnets can be attracted to the top wall of the working cylinder.

[0022] By adopting the above technical solution, when the cover plate abuts against the top wall of the working cylinder to block the top opening of the working cylinder, the magnets are attracted to the working cylinder, so that the cover plate is not easy to rotate and separate from the working cylinder, increasing the stability of the cover plate covering the working cylinder.

[0023] In summary, the present application includes at least the following beneficial effects:

[0024] 1. When in use, pour the coating into the working cylinder through the top opening of the working cylinder. Then start the rotating motor to drive the stirring rod to rotate. Since the inner wall of the moving groove abuts against the moving block, the stirring rod will drive the moving block to rotate when it rotates, thereby driving the stirring disk to rotate, so as to realize the stirring and mixing of the coating in the working cylinder. When the stirring disk rotates, the driving assembly moves in a circular motion relative to the stirring disk. During this process, start the driving assembly at the same time to drive the stirring disk to move in the vertical direction, so that the stirring disk moves up and down while rotating, and further makes it convenient for the stirring disk to stir the coatings at different positions in the working cylinder, reducing the possibility of the coatings in the working cylinder having mixing dead corners, thereby improving the dispersion efficiency of the working cylinder;

[0025] 2. The shielding belt covers the moving groove, making the remaining positions in the moving groove except where the moving block is located in a closed state, so that the coating in the working cylinder will not get stuck in the moving groove and affect the movement of the moving block. When the stirring disk moves vertically, that is, the moving block moves in the moving groove, driving the shielding belt to move, so that the shielding belt makes a cyclic motion around the two mounting rods. The movement of the shielding belt in the moving groove makes the shielding belt always cover the moving groove. Description of the Drawings

[0026] Figure 1 is a schematic structural diagram of a dispersion kettle for producing waterborne polyurethane coatings according to an embodiment of the present application;

[0027] Figure 2 is a structural sectional view of a dispersion kettle for producing waterborne polyurethane coatings according to an embodiment of the present application;

[0028] Figure 3 is a schematic structural diagram inside the working cylinder;

[0029] Figure 4 is Figure 2 an enlarged view of part A in

[0030] In the figure: 10, working cylinder; 20, rotating motor; 30, stirring rod; 31, moving groove; 32, mounting rod; 33, shielding belt; 40, stirring disk; 41, moving block; 42, sawtooth rack; 43, annular groove; 50, driving assembly; 51, cylinder; 52, driving rod; 53, connecting rod; 60, positioning rod; 70, connecting block; 80, cover plate; 81, magnet; 90, support rod. Detailed Description of the Embodiment

[0031] The following further describes the present application in detail Figures 1 - 4 with reference to the accompanying drawings

[0032] An embodiment of the present application discloses a dispersion kettle for producing waterborne polyurethane coatings. Refer to Figure 1 and Figure 2, The dispersion kettle for the production of waterborne polyurethane coatings includes a working cylinder 10 and a stirring rod 30. The working cylinder 10 is a cylindrical barrel with a partially open top structure. The stirring rod 30 is vertically inserted into the working cylinder 10 and is coaxial with the working cylinder 10. A rotating motor 20 is installed on the top wall of the working cylinder 10 through bolts. The output end of the rotating motor 20 is coaxially fixed to the top end of the stirring rod 30, and the rotating motor 20 can drive the stirring rod 30 to rotate self - clockwise.

[0033] Refer to Figure 2 and Figure 3 , A stirring disk 40 is coaxially sleeved on the stirring rod 30. A moving groove 31 is opened on the side wall of the stirring rod 30 in the vertical direction. A moving block 41 is fixed on the inner wall of the stirring disk 40. The moving block 41 is inserted into the moving groove 31 and can move in the moving groove 31. During use, the coating is poured into the working cylinder 10 from the top opening of the working cylinder 10. Then, the rotating motor 20 is started to drive the stirring rod 30 to rotate self - clockwise. Because the inner wall of the moving groove 31 abuts against the moving block 41, when the stirring rod 30 rotates, it will drive the moving block 41 to rotate, thereby driving the stirring disk 40 to rotate, so as to realize the stirring and mixing of the coating in the working cylinder 10.

[0034] Refer to Figure 2 and Figure 3 , A saw - tooth rack 42 is fixed on the circumferential side wall of the stirring disk 40. The saw - tooth rack 42 can increase the shearing force during the rotation and stirring process of the stirring disk 40, thereby accelerating the mixing and dispersion of the coating, and thus improving the stirring efficiency.

[0035] Refer to Figure 2 and Figure 3 , In order to improve the stirring efficiency of the stirring disk 40, a driving assembly 50 is provided on the working cylinder 10. The driving assembly 50 includes a cylinder 51, a driving rod 52 and a connecting rod 53. The cylinder 51 is installed on the top wall of the working cylinder 10 through bolts. The output end of the cylinder 51 faces upward and is fixed to the driving rod 52. The driving rod 52 is horizontally arranged and hangs above the working cylinder 10. The cylinder 51 is used to drive the driving rod 52 to move up and down. The connecting rod 53 is vertically inserted into the working cylinder 10. The top end of the connecting rod 53 passes through the top wall of the working cylinder 10 and is fixed to the driving rod 52. The bottom end of the connecting rod 53 is fixed with a connecting block 70. A ring groove 43 is opened on the top wall of the stirring disk 40. The ring groove 43 is a T - shaped groove. The connecting block 70 is adaptively inserted into the ring groove 43 and can move in the ring groove 43.

[0036] Refer to Figure 2 and Figure 3, a positioning rod 60 is fixedly installed on the driving rod 52. The positioning rod 60 is also vertically inserted into the working cylinder 10. The stirring rod 30 is located between the connecting rod 53 and the positioning rod 60. A connecting block 70 is also fixedly installed at the lower end of the positioning rod 60. The connecting block 70 is also inserted into the annular groove 43 and can move in the annular groove 43.

[0037] While the stirring rod 30 drives the stirring disk 40 to rotate, the air cylinder 51 is started to drive the driving rod 52 to move up and down, thereby driving the connecting rod 53 and the positioning rod 60 to move, so that the stirring disk 40 moves in the vertical direction. Two symmetric points of the stirring disk 40 are stressed and lifted, so that the stirring disk 40 is not easy to tilt or break away from the connecting block 70, thereby making the connection between the driving rod 52 and the stirring disk 40 more stable. When the stirring disk 40 rotates, the connecting block 70 moves relatively in the annular groove 43. At this time, the connecting block 70 and the annular groove 43 cooperate, so that the connecting rod 53 and the positioning rod 60 always maintain a connection relationship with the stirring disk 40 without affecting the rotation of the stirring disk 40.

[0038] The movement of the connecting rod 53 and the positioning rod 60 realizes the adjustment of the height of the stirring disk 40, so that the stirring disk 40 moves up and down while rotating, thereby making it convenient for the stirring disk 40 to stir the paint at different positions in the working cylinder 10, reducing the possibility of the paint in the working cylinder 10 being mixed unevenly, and improving the dispersion efficiency of the working cylinder 10.

[0039] Refer to Figure 3 and Figure 4 , in order to prevent the paint in the working cylinder 10 from getting stuck in the moving groove 31 and affecting the movement of the moving block 41, two mounting rods 32 are fixedly installed in the stirring rod 30. The two mounting rods 32 are arranged vertically. A shielding belt 33 is sleeved on the two mounting rods 32. The shielding belt 33 can move on the mounting rods 32. The shielding belt 33 penetrates into the moving groove 31, so that one side of the shielding belt 33 can cover the entire moving groove 31. The moving block 41 is fixed to the shielding belt 33, so that the shielding belt 33 can move in the moving groove 31.

[0040] The shielding belt 33 covers the moving groove 31, so that the rest of the positions in the moving groove 31 except the position where the moving block 41 is located are in a closed state, so that the paint in the working cylinder 10 will not get stuck in the moving groove 31 and affect the movement of the moving block 41. When the stirring disk 40 moves vertically, that is, the moving block 41 moves in the moving groove 31, driving the shielding belt 33 to move, so that the shielding belt 33 makes a cyclic movement around the two mounting rods 32. The movement of the shielding belt 33 in the moving groove 31 makes the shielding belt 33 always cover the moving groove 31.

[0041] Refer to Figure 1 and Figure 2, a cover plate 80 is hinged to the top of the working cylinder 10. The cover plate 80 can be rotated to abut against the top wall of the working cylinder 10. A magnet 81 is embedded at the edge of the cover plate 80, and the magnet 81 can be attracted to the top wall of the working cylinder 10. A plurality of support rods 90 are fixed to the top of the working cylinder 10. The support rods 90 are horizontally arranged and are on the same horizontal plane as the top wall of the working cylinder 10.

[0042] When the stirring rod 30 and the stirring disc 40 stir the coating material, the cover plate 80 is flipped towards the working cylinder 10, so that the cover plate 80 seals the top opening of the working cylinder 10, and thus the coating material is not easily spilled out of the working cylinder 10. At this time, the magnet 81 is attracted to the working cylinder 10, making it difficult for the cover plate 80 to rotate and separate from the working cylinder 10, increasing the stability of the cover plate 80 in sealing the working cylinder 10. At the same time, a plurality of support rods 90 also abut against the cover plate 80, thereby providing support for the cover plate 80 so that the cover plate 80 can seal the working cylinder 10 more stably.

[0043] The implementation principle of the dispersion kettle for producing waterborne polyurethane coatings in the embodiment of the present application is as follows: When in use, the coating material is poured into the working cylinder 10 from the top opening of the working cylinder 10. Then, the rotation motor 20 is started to drive the stirring rod 30 to rotate. Since the inner wall of the moving groove 31 abuts against the moving block 41, the stirring rod 30 will drive the moving block 41 to rotate when rotating, thereby driving the stirring disc 40 to rotate, so as to realize the stirring and mixing of the coating material in the working cylinder 10. When the stirring disc 40 rotates, the driving assembly 50 moves in a circular motion relative to the stirring disc 40. During this process, the driving assembly 50 is started at the same time to drive the stirring disc 40 to move in the vertical direction, so that the stirring disc 40 moves up and down while rotating, and further enables the stirring disc 40 to conveniently stir the coating material at different positions in the working cylinder 10, reducing the possibility of the coating material in the working cylinder 10 having mixing corners, thereby improving the dispersion efficiency of the working cylinder 10.

[0044] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A dispersion kettle for the production of waterborne polyurethane coatings, characterized in that, It includes a stirring rod (30) and a working cylinder (10) with an open top. The stirring rod (30) is vertically inserted into the working cylinder (10). A rotating motor (20) is provided at the top of the working cylinder (10). The rotating motor (20) is coaxially fixed to the top end of the stirring rod (30). The rotating motor (20) is used to drive the stirring rod (30) to rotate self - sufficiently. A stirring disc (40) is sleeved on the stirring rod (30). A moving groove (31) is opened on the side wall of the stirring rod (30) in the vertical direction. A moving block (41) is fixed on the inner wall of the stirring disc (40). The moving block (41) is inserted into the moving groove (31) and can move in the moving groove (31). A driving assembly (50) is provided on the working cylinder (10). The driving assembly (50) is connected to the stirring disc (40). The driving assembly (50) is used to drive the stirring disc (40) to move up and down.

2. The dispersion kettle for producing waterborne polyurethane coatings according to claim 1, characterized in that, The driving assembly (50) includes a cylinder (51), a driving rod (52) and a connecting rod (53). The cylinder (51) is provided on the top wall of the working cylinder (10). The output end of the cylinder (51) is fixed to the driving rod (52). The cylinder (51) is used to drive the driving rod (52) to move up and down. The connecting rod (53) is vertically inserted into the working cylinder (10). The top end of the connecting rod (53) is fixed to the driving rod (52), and the bottom end is slidably connected to the side wall of the stirring disc (40).

3. The dispersion kettle for the production of aqueous polyurethane coatings according to claim 2, characterized in that, A positioning rod (60) is fixed on the driving rod (52). The positioning rod (60) is inserted into the working cylinder (10) and is parallel to the connecting rod (53). Connecting blocks (70) are provided at one end of the positioning rod (60) and the connecting rod (53) close to the stirring disc (40). A ring groove (43) is opened on the side wall of the stirring disc (40). The connecting block (70) is inserted into the ring groove (43) and can move in the ring groove (43).

4. The dispersion kettle for the production of waterborne polyurethane coatings according to claim 1, characterized in that, A saw - tooth rack (42) is provided on the circumferential side wall of the stirring disc (40).

5. The dispersion kettle for the production of aqueous polyurethane coatings according to claim 1, characterized in that, Two mounting rods (32) are provided inside the stirring rod (30). The two mounting rods (32) are arranged vertically. A shielding belt (33) is sleeved on the two mounting rods (32). The shielding belt (33) can move on the mounting rods (32). One side of the shielding belt (33) is inserted into the moving groove (31) and can move in the moving groove (31). The shielding belt (33) is used to block the moving groove (31). The moving block (41) is fixed to the shielding belt (33).

6. The dispersion kettle for producing aqueous polyurethane coatings according to claim 1, characterized in that, A cover plate (80) is hinged to the top of the working cylinder (10). The cover plate (80) can rotate to abut against the top wall of the working cylinder (10) to block the top opening of the working cylinder (10).

7. The dispersion kettle for the production of aqueous polyurethane coatings according to claim 6, characterized in that, A number of support rods (90) are fixed to the top of the working cylinder (10). The support rods (90) are horizontally arranged and are on the same horizontal plane as the top wall of the working cylinder (10).

8. The dispersion kettle for the production of aqueous polyurethane coatings according to claim 6, characterized in that, Magnets (81) are provided at the edge of the cover plate (80). The magnets (81) can be attracted to the top wall of the working cylinder (10).

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