Tabletting and cooling device for producing superfine gamma-aluminum oxide modified powder coating

Abstract

The utility model discloses a tabletting cooling device for producing superfine gamma-aluminum oxide modified powder coating, which relates to the technical field of powder coating and comprises a frame, a cavity is formed in the frame, two rotatable grinding rollers are horizontally arranged in the cavity, a feeding hole is formed in the upper side wall of the cavity and corresponds to the position between the two grinding rollers, and a feeding hole is formed in the upper side wall of the cavity and corresponds to the position between the two grinding rollers. A cooling assembly is additionally arranged in the cavity, the cooling assembly comprises two rotatable cooling rollers which are horizontally arranged, the outer side of each cooling roller is sleeved with a cooling shell, a cooling cavity is formed in each cooling shell, the cooling rollers are located in the cooling cavities, openings are formed in the opposite sides of the two cooling cavities, and the cooling rollers are located in the openings. Part of the roller surface of the cooling roller is exposed out of an opening, the sides, deviating from each other, of the two cooling shells are fixedly connected with an air inlet pipe and an air outlet pipe, the air inlet pipe and the air outlet pipe communicate with the cooling cavity, an input opening of the air inlet pipe communicates with an air conditioner, and by means of the device, the cooling effect of the powder coating after tabletting is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of powder coatings, in particular to a tabletting cooling device for producing ultrafine gamma-alumina modified powder coatings. Background Art

[0002] Powder coating is a solid powdered synthetic resin coating composed of solid resin, pigments, fillers and additives. Unlike ordinary solvent-based coatings and water-based coatings, its dispersion medium is air instead of solvent and water. It has the characteristics of no solvent pollution, 100% film formation and low energy consumption.

[0003] Ultrafine γ-alumina modified powder coatings are made with a polyester resin as the base resin, ultrafine γ-alumina as the filler, and a curing agent, leveling agent, and other additives. They exhibit excellent wear resistance. The production process involves mixing the raw materials, melting and cross-linking them, then extruding them into flakes using a tableting device. After cooling, the flakes are crushed, ground, and sieved to obtain the final powder coating.

[0004] Therefore, in the process of powder coating production, high requirements are required for coating cooling. If the cooling efficiency is low, the hot melt coating will easily stick to the conveyor belt, directly blocking the subsequent coating discharge. On the one hand, it affects the transportation of raw materials. On the other hand, the re-operation of the residual material through the conveyor belt will increase the thickness of the tablets during the next transportation, which reduces the cooling efficiency of thicker tablet raw materials and affects the subsequent crushing effect. However, traditional cooling methods are inefficient. Extending the conveying length of the tablet press to meet the cooling requirements will increase the floor space and have poor cooling effect. Therefore, it is necessary to design a tablet cooling device for ultra-fine γ-alumina modified powder coating production with improved cooling effect. Utility Model Content

[0005] The purpose of the utility model is to address the existing technical defects and provide a tablet cooling device for the production of ultra-fine γ-alumina modified powder coatings to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a tabletting cooling device for the production of ultrafine γ-alumina modified powder coating, comprising a frame, the frame is provided with a cavity, two rotatable rolling rollers are horizontally arranged in the cavity, a feed port is provided between the upper cavity wall corresponding to the two rolling rollers, and a cooling component is further provided in the cavity, the cooling component comprises two rotatable cooling rollers arranged horizontally, each of the cooling rollers is provided with a cooling shell on the outer side, a cooling cavity is provided in the cooling shell, the cooling rollers are located in the cooling cavity, an opening is provided on the two cooling cavities on the sides opposite to each other, and part of the roller surface of the cooling roller is exposed to the opening, and an air inlet pipe and an air outlet pipe are fixedly connected on the sides of the two cooling shells facing away from each other, the air inlet pipe and the air outlet pipe are connected to the cooling cavity, the input port of the air inlet pipe is connected to an air conditioner, and the output of the air outlet pipe is connected to a fan, and a conveyor belt is provided under the frame.

[0007] The utility model further describes that a driving motor is fixedly connected to the central axis of the corresponding grinding roller on the frame, one end of the central axis of the two grinding rollers is movably connected to the inner wall of the cavity along the axis, and the other end of the central axis of the two grinding rollers passes through the frame along the axis, and the output end of the driving motor is fixedly connected to the central axis of the grinding roller.

[0008] The utility model further describes that the central axes of the two cooling rollers are penetrated and movably connected with connecting blocks at both ends along the axis, the cooling rollers are rotatably connected to the connecting blocks, the frame is provided with a slide groove corresponding to the connecting block, the connecting block is slidably connected to the slide groove, and the cooling shell is fixedly connected to the connecting blocks at both ends along the axis direction of the cooling roller.

[0009] The present invention further illustrates that the two side surfaces of the connecting block perpendicular to the horizontal plane are fixedly connected with guide blocks, and the inner wall of the sliding groove is provided with guide grooves corresponding to the guide blocks.

[0010] The utility model further describes that the cavity is provided with two mounting openings on both sides of the inner wall along the axis direction of the cooling roller. The two mounting openings are symmetrically arranged with the center line of the slide groove as the reference. A telescopic cylinder is installed in each of the mounting openings, and the output end of the telescopic cylinder passes through the slide groove wall and is fixedly connected to the connecting block.

[0011] The utility model further describes that the connecting block is fixedly connected to a fixed plate on the side away from the cooling roller, the fixed plate is located on the outside of the frame, and the fixed plate is fixedly connected to a second drive motor, and the output end of the second drive motor passes through the fixed plate and is fixedly connected to the center axis of the cooling roller.

[0012] The present invention further describes that the cooling cavity is cylindrical and is arranged concentrically with the cooling roller, the inner wall of the opening is in direct contact with the roller surface of the cooling roller, and a groove is formed on the upper part of one side of the two cooling shells close to the opening.

[0013] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention cools both sides of the powder coating after being rolled into sheets by arranging two cooling rollers.

[0014] By setting up a cooling shell and a cooling cavity, introducing cold air into the cooling cavity through an air inlet pipe, and extracting the heated gas through an air outlet pipe, the constant temperature effect of the cold air in the cooling cavity is maintained, thereby improving the cooling quality of the powder coating after flake formation.

[0015] By setting the connecting block, the slide and the telescopic cylinder, the powder coating after flake is cooled and the two cooling rollers are controlled to perform secondary rolling on the powder coating after flake, so as to control the flake thickness of the powder coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is an orthogonal schematic diagram of the cross-sectional structure of the frame of the utility model;

[0019] Figure 3 This is a front view schematic diagram of the cross-sectional structure of the frame of the present invention;

[0020] Figure 4 This is a schematic diagram of the orthogonal structure of the frame of the utility model;

[0021] Figure 5 This is a schematic diagram of the connection block structure of the utility model;

[0022] Figure 6 This is a schematic diagram of the cross-sectional structure of the cooling shell of the present utility model;

[0023] In the figure: 1. Frame; 2. Cavity; 3. Roller; 4. Drive motor 1; 5. Feed port; 6. Cooling assembly; 7. Cooling roller; 8. Connecting block; 9. Slide; 10. Fixing plate; 11. Drive motor 2; 12. Guide block; 13. Guide groove; 14. Mounting port; 15. Telescopic cylinder; 16. Cooling shell; 17. Cooling cavity; 18. Opening; 19. Inlet pipe; 20. Outlet pipe; 21. Groove; 22. Conveyor belt. DETAILED DESCRIPTION

[0024] The following is a non-limiting detailed description of the technical solution of the present invention in conjunction with preferred embodiments and their accompanying drawings. Obviously, the described embodiments are only a portion of the embodiments of the present invention, and not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0025] See also Figure 1-6 The utility model provides a technical solution: a tabletting cooling device for the production of ultrafine γ-alumina modified powder coating, comprising a frame 1, the frame 1 is in the shape of a "J", the frame 1 is provided with a cavity 2, two rotatable rollers 3 are horizontally arranged in the cavity 2, the axes of the two rollers 3 are on the same horizontal line, the central axes of the two rollers 3 are movably connected to the inner wall of the cavity 2 along one end of the axis, and the central axes of the two rollers 3 pass through the frame 1 along the other end of the axis, and a drive motor 4 is fixedly connected to the central axis of the corresponding roller 3 on the frame 1, the output end of the drive motor 4 is fixedly connected to the central axis of the roller 3, the drive motor 4 drives the roller 3 to rotate, and a gap is formed between the two rollers 3 for tabletting the powder coating extruded by the extruder.

[0026] A feed port 5 is provided between the two rollers 3 on the upper wall of the cavity 2. An extruder (not shown in the figure) is provided on one side of the frame 1. The output end of the extruder is located above the feed port 5. The powder coating falls through the output end of the extruder through the feed port 5 and falls on the upper side between the two rollers 3. The two rollers 3 are rotated so that the powder coating is pressed into sheets by the rollers 3 and then flows downward from the gap between the two rollers 3.

[0027] A cooling assembly 6 is also provided in the cavity 2. The cooling assembly 6 is located below the two grinding rollers 3. The cooling assembly 6 includes two horizontally arranged rotatable cooling rollers 7. The axes of the two cooling rollers 7 are on the same horizontal line. The central axes of the two cooling rollers 7 are penetrated and movably connected with connecting blocks 8 at both ends along the axis. The cooling rollers 7 are rotatably connected to the connecting blocks 8. The frame 1 is provided with a slide groove 9 corresponding to the connecting block 8. The connecting block 8 is slidably connected to the slide groove 9. The side of the connecting block 8 away from the cooling roller 7 is fixedly connected with a fixed plate 10. The fixed plate 10 is located on the outside of the frame 1. A driving motor 2 11 is fixedly connected to the fixed plate 10. The output end of the driving motor 2 11 penetrates the fixed plate 10 and is fixedly connected to the central axis of the cooling roller 7, thereby driving the cooling roller 7 to rotate.

[0028] The connecting block 8 is fixedly connected to the guide blocks 12 on both sides perpendicular to the horizontal plane, and the inner wall of the chute 9 is provided with a guide groove 13 corresponding to the guide block 12. The inner wall of the cavity 2 on both sides along the axis of the cooling roller 7 is provided with two mounting openings 14. The two mounting openings 14 are symmetrically arranged with respect to the center line of the chute 9. A telescopic cylinder 15 is installed in each mounting opening 14. The output end of the telescopic cylinder 15 passes through the wall of the chute 9 and is fixedly connected to the connecting block 8, so that the output end of the telescopic cylinder 15 extends out to drive the connecting block 8 to slide in the chute 9, so that the two cooling rollers 7 are close to each other to clamp the powdered coating rolled into sheets. While cooling the powdered coating rolled into sheets by the rolling roller 3, the thickness of the powdered coating rolled into sheets can be further controlled.

[0029] A cooling shell 16 is provided on the outside of each cooling roller 7. The cooling shell 16 is fixedly connected to the connecting block 8 at both ends along the axis of the cooling roller 7. The cooling roller 7 is movably connected to the cooling shell 16. A cooling cavity 17 is provided in the cooling shell 16. The cooling roller 7 is located in the cooling cavity 17. The cooling cavity 17 is cylindrical and is concentrically arranged with the cooling roller 7. An opening 18 is provided on the opposite side of the two cooling cavities 17. Part of the roller surface of the cooling roller 7 is exposed to the opening 18. The inner wall of the opening 18 is in direct contact with the roller surface of the cooling roller 7, so that the cooling cavity 17 is in a relatively sealed state.

[0030] An air inlet pipe 19 and an air outlet pipe 20 are fixedly connected to the sides of the two cooling shells 16 facing away from each other. The air inlet pipe 19 and the air outlet pipe 20 are connected to the cooling chamber 17. The input port of the air inlet pipe 19 is connected to an air cooler (not shown in the figure) for introducing cold air into the cooling chamber 17. The cold air cools the roller surface of the cooling roller 7. The output of the air outlet pipe 20 is connected to a fan (not shown in the figure). The fan is used to extract the air in the cooling chamber 17 after cooling the roller surface of the cooling roller 7, thereby ensuring that the cold air in the cooling chamber 17 is in a constant temperature state. The air cooler and the fan are both existing conventional technologies.

[0031] A groove 21 is formed on the upper part of one side of the two cooling shells 16 close to the opening 18. The groove 21 is in a "V"-shaped funnel shape. The groove 21 is located below the gap between the two rolling rollers 3. The center line of the groove 21 is on the same vertical line as the center line of the gap between the two rolling rollers 3.

[0032] The powder coating rolled into sheets by the rolling roller 3 falls through the groove 21 and contacts the roller surfaces of the two cooling rollers 7 with the openings 18 exposed, so that the cooling rollers 7 cool the powder coating and continue to move downward under the rotation of the cooling rollers 7.

[0033] A conveyor belt 22 is provided below the frame 1. The conveyor belt 22 is conventional technology and is used to transfer the cooled powder coating to the next processing step.

[0034] In this embodiment, the powder coating falls through the output end of the extruder through the feed port 5 and falls on the upper side between the two rollers 3. The two rollers 3 are rotated so that the powder coating is rolled into sheets by the rollers 3 and then flows downward from the gap between the two rollers 3. The powder coating rolled into sheets by the rollers 3 falls through the groove 21 and contacts the roller surfaces of the two cooling rollers 7 with the openings 18 exposed. The cooling rollers 7 rotate to cool the powder coating. At the same time, the powder coating is rolled a second time according to actual requirements to control the thickness of the powder coating sheet.

[0035] Cold air is introduced into the cooling chamber 17 by the air conditioner, and the air in the cooling chamber 17 is extracted by the fan, thereby maintaining the constant temperature of the cold air in the cooling chamber 17.

[0036] The powder coating continues to move downward under the rotation of the cooling roller 7 and falls onto the conveyor belt 22, thereby transmitting the powder coating to the next processing step.

[0037] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only used to facilitate the description of the present invention, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0038] Finally, it should be pointed out that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art will appreciate that modifications may be made to the technical solutions described in the above embodiments, or that some of the technical features may be replaced with equivalents. Such modifications or replacements do not deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A tabletting cooling device for producing ultrafine γ-alumina modified powder coatings, characterized by: The invention comprises a frame (1), wherein the frame (1) is provided with a cavity (2), wherein two rotatable rollers (3) are horizontally arranged in the cavity (2), and a feed port (5) is provided between the upper wall of the cavity (2) and the two rollers (3), and a cooling assembly (6) is further provided in the cavity (2), wherein the cooling assembly (6) comprises two rotatable cooling rollers (7) arranged horizontally, wherein a cooling shell (16) is provided on the outer side of each cooling roller (7), wherein a cooling cavity (17) is provided in the cooling shell (16), and wherein the cooling roller (7) is located at In the cooling cavity (17), an opening (18) is provided on one side of the two cooling cavities (17) facing each other, and a portion of the roller surface of the cooling roller (7) is exposed through the opening (18). An air inlet pipe (19) and an air outlet pipe (20) are fixedly connected on the sides of the two cooling shells (16) facing away from each other, and the air inlet pipe (19) and the air outlet pipe (20) are connected to the cooling cavity (17). The input port of the air inlet pipe (19) is connected to an air conditioner, and the output port of the air outlet pipe (20) is connected to a fan. A conveyor belt (22) is provided below the frame (1).

2. The tabletting cooling device for producing ultrafine γ-alumina modified powder coating according to claim 1, characterized in that: A driving motor (4) is fixedly connected to the central axis of the corresponding roller (3) on the frame (1); one end of the central axis of the two rollers (3) is movably connected to the inner wall of the cavity (2) along the axis; the other end of the central axis of the two rollers (3) passes through the frame (1); and the output end of the driving motor (4) is fixedly connected to the central axis of the roller (3).

3. The tabletting cooling device for producing ultrafine γ-alumina modified powder coating according to claim 2, characterized in that: The central axes of the two cooling rollers (7) are penetrated and movably connected with connecting blocks (8) at both ends along the axis, the cooling rollers (7) are rotatably connected to the connecting blocks (8), the frame (1) is provided with a slide groove (9) corresponding to the connecting blocks (8), the connecting blocks (8) are slidably connected to the slide groove (9), and the cooling shell (16) is fixedly connected to the connecting blocks (8) at both ends along the axis direction of the cooling rollers (7).

4. The tabletting cooling device for producing ultrafine γ-alumina modified powder coating according to claim 3, characterized in that: The two side surfaces of the connecting block (8) perpendicular to the horizontal plane are fixedly connected to guide blocks (12), and the inner wall of the sliding groove (9) is provided with a guide groove (13) corresponding to the guide block (12).

5. The tabletting cooling device for producing ultrafine γ-alumina modified powder coating according to claim 4, characterized in that: The cavity (2) is provided with two mounting openings (14) on both sides of the inner wall along the axis direction of the cooling roller (7), and the two mounting openings (14) are symmetrically arranged with the center line of the slide groove (9) as a reference. A telescopic cylinder (15) is installed in each of the mounting openings (14), and the output end of the telescopic cylinder (15) passes through the wall of the slide groove (9) and is fixedly connected to the connecting block (8).

6. The tabletting cooling device for producing ultrafine γ-alumina modified powder coating according to claim 5, characterized in that: A fixed plate (10) is fixedly connected to the side of the connecting block (8) away from the cooling roller (7), and the fixed plate (10) is located outside the frame (1). A second drive motor (11) is fixedly connected to the fixed plate (10), and an output end of the second drive motor (11) passes through the fixed plate (10) and is fixedly connected to the central axis of the cooling roller (7).

7. The tabletting cooling device for producing ultrafine γ-alumina modified powder coating according to claim 6, characterized in that: The cooling cavity (17) is cylindrical and is arranged concentrically with the cooling roller (7). The inner wall of the opening (18) is in direct contact with the roller surface of the cooling roller (7). A groove (21) is formed on the upper part of one side of the two cooling shells (16) close to the opening (18).

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