Temperature control cooling roller for powder coating tabletting

Abstract

This utility model discloses a temperature-controlled cooling roller for powder coating tableting, including a tableting plate with a tableting groove on its upper side and a pressure roller at its upper end. Limiting plates are fixedly connected to both outer ends of the pressure roller, with one side of the limiting plate fitting against one side of the tableting plate. A cavity is provided inside the pressure roller, and a water guide pipe is provided on its inner side. This utility model uses water guide pipes and distribution pipes evenly distributed at different positions of a fan-shaped heat-conducting sheet. Simultaneously, the use of two conical guide plates ensures that water flow is evenly distributed to each distribution pipe, preventing localized overload or insufficient water flow and ensuring that heat at the upper end of the fan-shaped heat-conducting sheet is evenly removed. Furthermore, the use of an air duct and a guide pipe ensures that the introduced airflow is stably guided into the inside of the pressure roller. Overall, the synergistic effect of water flow and airflow improves heat transfer efficiency and significantly enhances the overall temperature control effect.

Description

Technical Field

[0001] This utility model relates to the technical field of powder coating preparation equipment, specifically a temperature-controlled cooling roller for powder coating tableting. Background Technology

[0002] In powder coating production, raw powder may exist in the form of loose particles after processes such as mixing, melt extrusion, crushing and grinding. The tableting process can be used to transform it into a sheet form that is easy to transport, store or further process. At the same time, it helps to improve the flowability, metering accuracy and application performance of powder coating, and provides a more uniform and stable material form for subsequent processes such as electrostatic spraying.

[0003] In the prior art, such as the cooling roller for powder coating tableting disclosed in CN216466425U, a hollow roller body is included, along with hollow connecting pipes connected to both ends of the roller body. It also includes a fixed rod located at the center of the roller, and a heat dissipation plate between the fixed rod and the inner wall of the roller body. Filter plates are fixed to both ends of the fixed rod, and the filter plates are fixed to both ends of the roller body. Adjacent heat dissipation plates are staggered and arranged vertically on the fixed rod and the roller body. In this invention, the heat dissipation plates are arranged in a staggered pattern inside the roller body, and the heat dissipation plates are inclined towards the inner wall of the roller body. This increases the flow path of the cooling water, increases the contact time between the cooling water and the inner wall of the cooling roller, improves the cooling effect, and prevents molten material from sticking to the roller. Furthermore, it disperses the stress on the roller body, increases the overall strength of the roller body, and ensures the service life of the cooling roller.

[0004] However, in the powder coating tableting process, the water flow path inside the roller is singular, making it difficult to evenly cover the entire inside of the roller. This results in poor cooling effect in local areas, making it easy for hot spots to appear. Furthermore, the unidirectional arrangement of the heat dissipation plates easily causes frequent turbulence and eddies, which not only reduces the cooling efficiency of the water flow on the roller but also increases the vibration and noise during equipment operation, affecting the overall stability of operation and tableting quality. Therefore, we propose a temperature-controlled cooling roller for powder coating tableting. Utility Model Content

[0005] One of the technical problems this application aims to solve is: addressing the issue of poor cooling effect in localized areas caused by turbulence and eddies inside the temperature-controlled cooling roller.

[0006] To solve the above-mentioned technical problems, this application provides a temperature-controlled cooling roller for powder coating tableting, including a tableting plate, a tableting groove on the upper side of the tableting plate, a pressure roller at the upper end of the tableting plate, a limiting plate fixedly connected to both ends of the outer side of the pressure roller, one side of the limiting plate and one side of the tableting plate being in contact with each other, a cavity being provided inside the pressure roller, a water guide pipe being provided inside the pressure roller, a second sealing connector being fixedly connected to both ends of the water guide pipe, and a fan-shaped heat-conducting sheet being provided on the outer side of the water guide pipe.

[0007] Preferably, there are two sets of fan-shaped heat-conducting sheets, which are staggered with each other. One side of the fan-shaped heat-conducting sheet is fixedly connected to the inner surface of the pressure roller, and the other end of the fan-shaped heat-conducting sheet is fixedly connected to the outer surface of the water guide pipe.

[0008] Preferably, the fan-shaped heat-conducting sheet is arranged in a fan shape, and a group of the fan-shaped heat-conducting sheets are evenly distributed in a spiral shape, with rounded bevels on both sides of the fan-shaped heat-conducting sheet.

[0009] Preferably, water distribution holes are provided at both ends of the water guide pipe, and four water distribution holes are provided on one side of the water guide pipe. The four water distribution holes are evenly distributed in a circumferential array, and a water distribution pipe is fixedly connected to the outside of the water guide pipe.

[0010] Preferably, four water distribution pipes are provided and evenly distributed in a circular array. Both ends of each water distribution pipe are connected to the water guide pipe through the water distribution hole, and the inner side of each water distribution pipe is interconnected with the inner side of the water guide pipe through the water distribution hole.

[0011] Preferably, both ends of the inner side of the water guide pipe are fixedly connected to a conical guide plate, the two conical guide plates are set in the same direction, and both ends of the water guide pipe are provided with an air guide tube. One side surface of the air guide tube is fixedly connected to one side of the pressure roller, and the inside of the air guide tube is provided with an air guiding surface.

[0012] Preferably, a guide air pipe is fixedly connected to the upper end of the air guide duct, the interior of the guide air pipe is in communication with the interior of the air guide duct, the interior of the air guide duct is in communication with the interior of the pressure roller, a first sealing connector is fixedly connected to one end of the guide air pipe, and a connector is fixedly connected to one side surface of the air guide duct.

[0013] This utility model has at least the following beneficial effects:

[0014] 1. This utility model uses water guide pipes and distribution pipes evenly distributed at different positions of the fan-shaped heat-conducting plate. At the same time, the use of two conical guide plates allows the water flow to be evenly distributed to each distribution pipe, avoiding local water overload or insufficient water flow, and ensuring that the heat at the top of the fan-shaped heat-conducting plate is evenly removed. At the same time, the use of air guide tubes and air guide pipes allows the introduced airflow to be stably guided into the inside of the pressure roller through the air guide surface. In addition, the spiral distribution of multiple sets of fan-shaped heat-conducting plates creates a spiral vortex guiding effect for the airflow, reducing turbulence and eddies, and reducing airflow resistance. Overall, the synergistic effect of water flow and airflow improves the heat transfer efficiency and significantly enhances the overall temperature control effect.

[0015] 2. This utility model uses the staggered distribution and spiral arrangement of multiple sets of fan-shaped heat-conducting sheets to form a multi-path and multi-dimensional heat conduction path for the airflow introduced into the pressure roller, so that heat can be transferred quickly in multiple directions, avoiding local heat accumulation and the occurrence of hot spot blind spots. At the same time, the shape design of the fan-shaped heat-conducting sheets makes the thermal stress evenly distributed along the heat-conducting sheets, avoiding cracking or deformation caused by local stress concentration, thus improving the overall efficiency and life of the cooling roller. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention from a left-side view.

[0017] Figure 2 This is a schematic diagram of the internal structure of the present invention from a left-side perspective.

[0018] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the three-dimensional structure of region A in the middle;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the present invention from the left-side view.

[0020] Figure 5 This utility model Figure 4 Enlarged schematic diagram of the three-dimensional structure of region B in the middle;

[0021] Figure 6 This is a three-dimensional structural diagram of some components of this utility model.

[0022] In the diagram: 1. Pressing plate; 2. Pressing groove; 3. Pressing roller; 4. Limiting plate; 5. Water guide pipe; 6. Water distribution hole; 7. Water distribution pipe; 8. Conical guide plate; 9. Fan-shaped heat conduction plate; 10. Rounded corner slope; 11. Air guide tube; 12. Air guide surface; 13. Guide air pipe; 14. First sealing connector; 15. Second sealing connector; 16. Connector. Detailed Implementation

[0023] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example

[0025] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 This utility model provides a technical solution: a temperature-controlled cooling roller for powder coating tableting, including a tableting plate 1, a tableting groove 2 on the upper side of the tableting plate 1, a pressure roller 3 at the upper end of the tableting plate 1, and limiting plates 4 fixedly connected to both ends of the outer side of the pressure roller 3. The limiting plates 4 control the overall placement position of the pressure roller 3 so that it is always at the upper end of the tableting plate 1. One side of the limiting plate 4 is in contact with one side of the tableting plate 1. The inside of the pressure roller 3 is provided with a cavity, and a water guide pipe 5 is provided on the inner side of the pressure roller 3. The two ends of the water guide pipe 5 are fixedly connected with second sealing connectors 15. One end of the second sealing connector 15 is connected to an external stainless steel corrugated pipe for water guidance, forming a tight overall connection to stabilize the inflow of water. A fan-shaped heat-conducting plate 9 is provided on the outer side of the water guide pipe 5.

[0026] Two sets of fan-shaped heat-conducting plates 9 are provided, and the two sets of fan-shaped heat-conducting plates 9 are staggered with each other. The staggered distribution makes the two sets of heat-conducting plates form multiple heat conduction paths in space, and heat can be transferred in multiple directions to avoid local heat accumulation. One side of the fan-shaped heat-conducting plate 9 is fixedly connected to the inner surface of the pressure roller 3, and the other end of the fan-shaped heat-conducting plate 9 is fixedly connected to the outer surface of the water guide pipe 5.

[0027] The fan-shaped heat-conducting plates 9 are arranged in a fan shape, with a group of fan-shaped heat-conducting plates 9 evenly distributed in a spiral pattern. Rounded corner slopes 10 are provided on both sides of the fan-shaped heat-conducting plates 9. The rounded corner slopes 10 facilitate the guidance of airflow for heat dissipation inside the pressure roller 3. The heat-conducting plates are fan-shaped, with the side with the larger arc surface contacting the heat source. The outer side of the pressure roller 3 is in contact with the high-temperature powder coating for pressing; this position is the heat source. The side with the smaller arc surface contacting the cold source. Both the airflow heat dissipation position and the water flow heat dissipation position inside the pressure roller 3 belong to the cold source. The outer arc surface of the side with the larger arc surface is thicker, while the inner arc surface of the side with the smaller arc surface is thinner. The side with the larger arc surface is in contact with the heat source. It can increase the contact area, reduce contact thermal resistance, and improve heat absorption efficiency. The side with the smaller arc surface contacts the cold source, which can reduce unnecessary material usage and ensure close contact with the cold source. The overall thickness gradually decreases, which can make thermal stress evenly distributed along the heat-conducting plate and avoid cracking or deformation caused by local stress concentration. The spiral distribution of the fan-shaped heat-conducting plate 9 can make the temperature-controlled airflow entering the pressure roller 3 form a vortex guiding effect, guiding the airflow to flow in the spiral direction, reducing turbulence and eddies. The rounded corner slope 10 can reduce the collision and separation of airflow with the edge of the fan-shaped heat-conducting plate 9, reduce turbulence and resistance, and at the same time reduce airflow impact and eddy noise, and reduce equipment vibration.

[0028] Water distribution holes 6 are provided at both ends of the water pipe 5. Four water distribution holes 6 are provided on one side of the water pipe 5. The four water distribution holes 6 are evenly distributed in a circular array. Water distribution pipes 7 are fixedly connected to the outside of the water pipe 5. The four water distribution pipes 7 are all located at the center of the fan-shaped heat conduction plate 9.

[0029] Four water distribution pipes 7 are provided and evenly distributed in a circular array. Both ends of the water distribution pipes 7 are connected to the water guide pipes 5 through water distribution holes 6. The inner side of the water distribution pipes 7 is interconnected with the inner side of the water guide pipes 5 through water distribution holes 6. The temperature-controlled water flows in from one end of the water guide pipe 5 and is diverted to the inside of the water distribution pipes 7 through water distribution holes 6. The whole system heats up and controls the temperature of the fan-shaped heat conduction plate 9 from different positions, thereby achieving effective temperature control of the pressure roller 3.

[0030] Both ends of the inner side of the water guide pipe 5 are fixedly connected to conical guide plates 8. The two conical guide plates 8 are set in the same direction. The conical guide plate 8 set at the water inlet end of the water guide pipe 5 guides the water flow and facilitates the water flow to be diverted into the interior of the water distribution pipe 7 through the water distribution hole 6. The conical guide plate 8 set at the water outlet end of the water guide pipe 5 can effectively prevent the water flow from flowing back. The whole system effectively guides the water flow and improves the temperature control effect. Both ends of the water guide pipe 5 are equipped with air guide tubes on the outer side. 11. One side of the air guide duct 11 is fixedly connected to one side of the pressure roller 3. The air guide duct 11 is provided with an air guide surface 12 inside. The air guide surface 12 has a smooth surface and is curved in shape without sharp edges. Its smooth surface transition reduces airflow separation. It should be noted that one side of the air guide surface 12 is close to the air inlet of the air guide duct 11, and the other side is close to the side of the pressure roller 3. The air guide surface 12 is conducive to guiding the temperature-controlled airflow inside the air guide duct 11 to the inside of the pressure roller 3, reducing turbulence and eddies.

[0031] A guide air pipe 13 is fixedly connected to the upper end of the air guide duct 11. The interior of the guide air pipe 13 is interconnected with the interior of the air guide duct 11, and the interior of the air guide duct 11 is interconnected with the interior of the pressure roller 3. A first sealing connector 14 is fixedly connected to one end of the guide air pipe 13. A connector 16 is fixedly connected to one side surface of the air guide duct 11. The connector 16 is used to connect to an external control device to facilitate the control of the overall movement and rotation, thereby achieving the effects of tableting and temperature control. The external control device can be any device in the prior art that can drive the pressure roller 3 to rotate and move simultaneously. This is merely an example and not a specific limitation. For example, the external control device may include a motor. The output end of the motor is connected to the connector 16 to drive the pressure roller 3 to rotate around its own axis. The motor is also connected to the drive end of a linear drive device (e.g., an electric push rod). The linear drive device drives the motor to move forward or backward by telescopic movement. On this basis, preferably, for the stability of movement, a linear guide rail can also be provided on one side of the pressure plate 1, so that the motor and the linear guide rail are slidably connected. Even better, a bearing can be installed on the other side of the pressure plate 1. The inner ring of the bearing is fixed to the pressure roller 3, and the outer ring is slidably connected to the corresponding linear guide rail. One end of the first sealing connector 14 is connected to the external stainless steel bellows used for air guidance. The tight and integral connection stabilizes the inflow of airflow, and the airflow flows into the interior of the air guide duct 11 through the guide air pipe 13.

[0032] Before using the entire device, connect the connector 16 to the external control device to effectively control the movement and rotation of the entire device. One end of the first sealing connector 14 is connected to the external stainless steel bellows used for air guidance, ensuring a tight connection and stable airflow. The external airflow flows into the air guide duct 11 via the guide pipe 13. The guide surface 12 inside the air guide duct 11 facilitates the guidance of the temperature-controlled airflow into the pressure roller 3. The airflow is guided into the interior of the pressure roller 3 by the spiral distribution of multiple sets of fan-shaped heat-conducting plates 9. The flow effect is improved, turbulence and eddies are reduced, airflow resistance is lowered, and the airflow fully flows through the inside of the pressure roller 3 before flowing out from the other end, improving heat transfer efficiency and enhancing the overall temperature control effect. One end of the second sealing connector 15 is connected to the external stainless steel corrugated pipe used for water guidance, forming a tight and stable connection to ensure water flow. One end of the water guide pipe 5 is used to introduce water flow, and the other end is used to export water flow. External water flows in from one end of the water guide pipe 5 and is diverted to the inside of the water guide pipe 7 through the water distribution hole 6 (i.e., external water flows into the water guide pipe 5 from one end of the water guide pipe 5). The water flows into the interior of the water distribution pipe 7 and out of the other end of the water guide pipe 5. Simultaneously, a conical guide plate 8 at one end guides the water flow, facilitating its diversion through the water distribution hole 6 into the interior of the water distribution pipe 7. This allows for heat dissipation and temperature control of the fan-shaped heat-conducting fins 9 from different locations. The conical guide plate 8 at the other end effectively prevents backflow. Water flowing into the water distribution pipe 7 converges inside the water guide pipe 5 through the water distribution hole 6 at the other end, and finally exits from the outlet at one end of the water guide pipe 5. This overall process effectively controls the water flow. Effective guidance improves temperature control. By controlling the flow of water and air, the fan-shaped heat-conducting sheet 9 is cooled and controlled from different positions. This allows for different cooling methods at different temperature levels of the pressure roller 3. The combined effect of water and air flow enhances heat transfer efficiency and overall temperature control. This ensures that the material cools quickly to a suitable temperature after pressing, preventing caking, sticking, or performance degradation due to excessively high temperatures, while also preventing excessively low temperatures from affecting material flowability and subsequent processing.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A temperature-controlled cooling roller for powder coating tableting, comprising a tableting plate (1), characterized in that: The upper side of the pressing plate (1) is provided with a pressing groove (2), and the upper end of the pressing plate (1) is provided with a pressing roller (3). Both ends of the outer side of the pressing roller (3) are fixedly connected with a limiting plate (4). One side of the limiting plate (4) is in contact with one side of the pressing plate (1). The inside of the pressing roller (3) is provided with a cavity. The inner side of the pressing roller (3) is provided with a water guide pipe (5). Both ends of the water guide pipe (5) are fixedly connected with a second sealing connector (15). The outer side of the water guide pipe (5) is provided with a fan-shaped heat-conducting sheet (9).

2. The temperature-controlled cooling roller for powder coating tableting according to claim 1, characterized in that: Two sets of fan-shaped heat-conducting plates (9) are provided, and the two sets of fan-shaped heat-conducting plates (9) are staggered with each other. One side of the fan-shaped heat-conducting plate (9) is fixedly connected to the inner surface of the pressure roller (3), and the other end of the fan-shaped heat-conducting plate (9) is fixedly connected to the outer surface of the water guide pipe (5).

3. The temperature-controlled cooling roller for powder coating tableting according to claim 2, characterized in that: The fan-shaped heat-conducting plate (9) is arranged in a fan shape, and a group of the fan-shaped heat-conducting plates (9) are evenly distributed in a spiral shape. The fan-shaped heat-conducting plates (9) have rounded bevels (10) on both sides.

4. The temperature-controlled cooling roller for powder coating tableting according to claim 3, characterized in that: Both ends of the water guide pipe (5) are provided with water distribution holes (6), and four water distribution holes (6) are provided on one side of the water guide pipe (5). The four water distribution holes (6) are evenly distributed in a circular array. A water distribution pipe (7) is fixedly connected to the outside of the water guide pipe (5).

5. The temperature-controlled cooling roller for powder coating tableting according to claim 4, characterized in that: The water distribution pipes (7) are provided in four and are evenly distributed in a circular array. Both ends of the water distribution pipes (7) are connected to the water guide pipes (5) through the water distribution holes (6). The inner side of the water distribution pipes (7) is connected to the inner side of the water guide pipes (5) through the water distribution holes (6).

6. A temperature-controlled cooling roller for powder coating tableting according to claim 5, characterized in that: Both ends of the inner side of the water guide pipe (5) are fixedly connected to a conical guide plate (8). The two conical guide plates (8) are set in the same direction. Both ends of the water guide pipe (5) are provided with an air guide tube (11). One side surface of the air guide tube (11) is fixedly connected to one side of the pressure roller (3). The air guide tube (11) is provided with an air guide surface (12) inside.

7. A temperature-controlled cooling roller for powder coating tableting according to claim 6, characterized in that: The upper end of the air guide tube (11) is fixedly connected to a guide air pipe (13), the interior of the guide air pipe (13) is connected to the interior of the air guide tube (11), the interior of the air guide tube (11) is connected to the interior of the pressure roller (3), one end of the guide air pipe (13) is fixedly connected to a first sealing connector (14), and a connector (16) is fixedly connected to one side surface of the air guide tube (11).

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