Anti-sticking cooling device for production of plastic powder coating

Abstract

This invention relates to the field of powder coating production technology and discloses an anti-adhesion cooling device for powder coating production. In this invention, a corresponding conveying component is placed inside the external frame. An auxiliary spring-loaded assembly, consisting of a guide groove, pressure rod, connecting shaft, and return spring, allows a soft pad placed on its side surface to intermittently contact the material on the bottom conveyor belt at appropriate times. Even after cooling, the coating material that remains adhered will partially break off under the contact of the soft pad. The spring-loaded contact of the soft pad relies mainly on the interaction between the contact rod, connecting sleeve, abutment rod, and return spring connected to the other end. This device separates material that remains adhered after cooling under mechanical stress; the overall structure is simple and easy to operate.

Description

Technical Field

[0001] This invention belongs to the field of powder coating production technology, specifically an anti-adhesion cooling device for powder coating production. Background Technology

[0002] An anti-adhesion cooling device for powder coating production is a specialized piece of equipment used to rapidly cool thermosetting powder coatings after extrusion and tableting, preventing them from clumping and sticking together. The core structure typically consists of a stainless steel belt conveyor, an air-cooled or water-cooled jacketed cooling chamber, and an anti-adhesion coating or vibration peeling mechanism. By evenly spreading the high-temperature molten coating flakes onto the cooling surface, forced convection or conduction heat transfer rapidly solidifies them to below their glass transition temperature. Simultaneously, airflow purging or mechanical vibration prevents soft particles from sticking together.

[0003] For example, CN214521490U discloses a tablet cooling device for plastic powder production, including two symmetrically arranged fixed frames. Each of the two fixed frames is equipped with a rotating shaft, and a conveyor belt is sleeved on the two rotating shafts to facilitate the conveying of the extruded tablets. The invention has a protective cover over the conveyor belt, and the protective cover is equipped with a main air supply pipe, a branch air supply pipe, and a jet nozzle. The main air supply pipe is connected to a cold air fan, which can blow cold air into the protective cover to cool the tablets on the conveyor belt and prevent them from sticking together. The invention also has a heat-conducting block between the conveyor belts, and a cold flow chamber is opened in the heat-conducting block. By connecting to a circulating water tank, cooling water cooled by the refrigeration unit is transported to the cold flow chamber to cool the conveyor belt and quickly dissipate the heat from the conveyor belt, preventing the tablets from sticking to the conveyor belt due to untimely cooling, which would affect the conveying.

[0004] However, in actual use, it was found that some coatings still adhered to each other after cooling. In order to remove this adhesion, a method other than cooling is needed to remove the adhesion. Therefore, mechanical force is required to remove the adhesion from the film. Summary of the Invention

[0005] The purpose of this invention is to provide an anti-adhesion cooling device for the production of plastic powder coatings in order to solve the problems mentioned above.

[0006] The technical solution adopted in this invention is as follows: an anti-adhesion cooling device for the production of plastic powder coatings, wherein the external frame serves as the main body of the entire frame, and two guide grooves are symmetrically opened on its outer side surface. A pressure rod is slidably inserted into the guide groove via the opened slots. Two connecting shafts are inserted into the symmetrical ends of the side surface of the pressure rod. A return spring is provided on the outer side surface of the connecting shaft. A soft pad is provided on the bottom surface of the pressure rod. The pressure rod is connected to the soft pad by the connecting bolt. A connecting sleeve is provided at the upper end of the pressure rod. A connecting sleeve and a stop rod are respectively provided at the upper and lower ends of the connecting sleeve. A contact rod is fixedly connected to the upper surface of the pressure rod. A stop rod is provided at the end of the connecting sleeve opposite to the contact rod.

[0007] By adopting the above technical solution, the internal structure of the external frame houses corresponding conveying components. An auxiliary spring-loaded assembly, consisting of guide grooves, pressure rods, connecting shafts, and return springs, allows the soft pads on its side surface to intermittently contact the material on the bottom conveyor belt at appropriate times. Even after cooling, any coating that remains adhered will partially break down under the contact of the soft pads. The spring-loaded contact of the soft pads relies primarily on the interaction between the contact rod, connecting sleeve, abutment rod, and return spring connected to the other end. Through this assembly, operators can separate any remaining adhered material under mechanical stress after cooling, further improving the overall adhesion dissociation rate. The overall structure is simple and easy to operate.

[0008] The external frame, as a frame component, has guide grooves on its side forming a sliding guide structure, allowing the pressure rod to slide vertically. After sliding, the connecting shafts at both ends further restrict the movement trajectory of the pressure rod. Simultaneously, a return spring at its lower end acts as a reset mechanism. When the pressure rod is acted upon by the upper contact rod, it presses down on the return spring, causing the soft pad connected to the pressure rod to release the material from the conveyor component. Subsequently, due to the spring's action, a reset is achieved, and after reset, due to the vibration effect, the soft pad contacts the conveyor belt surface at a high frequency and low force.

[0009] The soft pad is connected to the pressure bar via connecting bolts. The soft pad is made of a relatively soft material, and after it comes into contact with the surface of the conveyor belt, it will protect the paint on the bottom to a considerable extent. However, the soft pad will inevitably get some paint on it during contact, so it needs to be replaced regularly.

[0010] The contact rod inside the connecting sleeve is contacted by the upper abutment rod. When it moves downward, it will drive the contact rod downward. However, when the abutment rod is removed, the upper end of the contact rod will relax, and then the contact rod will move upward and continue to contact the lower abutment rod, forming repeated oscillations.

[0011] In a preferred embodiment, one end of the abutment relative to the connecting sleeve is connected to a linkage rotating rod, one end of the linkage rotating rod relative to the abutment is connected to a servo motor, one end of the servo motor relative to the linkage rotating rod is fixedly connected to a motor platform, and the motor platform is fixedly connected to the upper surface of the peripheral frame.

[0012] By adopting the above technical solution, the upper end of the abutment rod is the power source for the contact, with the servo motor at the top being the original power source. It is connected to an intelligent device at the other end and rotates when force is detected. Power is then transmitted to the abutment rod via an externally connected linkage rod, forming an intermittent contact device. The motor platform at the bottom serves as a structure to support the entire servo motor.

[0013] In a preferred embodiment, the side surface of the peripheral frame is provided with an outer peripheral plate, and multiple cooling boxes are symmetrically arranged on the outside of the outer peripheral plate.

[0014] By adopting the above technical solution, the structure used for transmission is placed inside the outer plate, and a relatively closed environment for cooling is formed together with the help of multiple cooling boxes set on its side.

[0015] In a preferred embodiment, a water spray pipe is provided on the outer side surface of the cooling box, and an air spray pipe is provided on the outer side surface of the cooling box.

[0016] By adopting the above technical solution, water used for cooling is sprayed outward at high pressure through the water spray pipe to form a water mist, and then the water mist is lifted upward again by the jet pipe at the bottom, thereby achieving long-term cooling.

[0017] In a preferred embodiment, the outer side surface of the cooling box is provided with a plurality of external pipes.

[0018] By adopting the above technical solution, external air and water for cooling are introduced from the outside through the external pipe, thereby cooling the materials on the conveyor belt and preventing them from sticking together.

[0019] In a preferred embodiment, the outer side surface of the peripheral frame is provided with a plurality of temperature detection heads.

[0020] By adopting the above technical solution, a temperature detection head is used to detect the temperature at different internal locations, which helps to monitor the cooling effect.

[0021] In a preferred embodiment, an intelligent recognition device is provided on the upper surface of the peripheral frame.

[0022] By adopting the above technical solution, an intelligent recognition device is used to capture images of moving materials on the conveyor belt, mainly to detect cases of adhesion. Then, mechanical vibration is applied to prevent adhesion.

[0023] In a preferred embodiment, a conveyor belt is provided inside the peripheral frame.

[0024] By adopting the above technical solution, the cooled plastic powder coating is transported outward using a conveyor belt.

[0025] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: In this invention, the external frame, as a frame component, has guide grooves on its side forming a sliding guide structure, allowing the pressure rod to slide vertically. After sliding, the connecting shafts inserted at both ends further restrict the movement trajectory of the pressure rod. Simultaneously, a return spring at its lower end acts as a reset mechanism. When the pressure rod is acted upon by the upper contact rod, it presses downward against the return spring, causing the soft pad connected to the pressure rod to release from the material on the conveyor component. Subsequently, due to the spring's action, a reset occurs, and after reset, due to the oscillation effect, the soft pad contacts the conveyor belt surface at a high frequency and low force.

[0026] The soft pad is connected to the pressure bar via connecting bolts. The soft pad is made of a relatively soft material, and after it comes into contact with the surface of the conveyor belt, it will protect the paint on the bottom to a considerable extent. However, the soft pad will inevitably get some paint on it during contact, so it needs to be replaced regularly.

[0027] The contact rod inside the connecting sleeve is contacted by the upper abutment rod. When it moves downward, it will drive the contact rod downward. However, when the abutment rod is removed, the upper end of the contact rod will relax, and then the contact rod will move upward and continue to contact the lower abutment rod, forming repeated oscillations. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of the overall device of the present invention; Figure 2 This is a detailed schematic diagram of the abutment rod in this invention; Figure 3 This is a detailed schematic diagram of the connecting sleeve in this invention; Figure 4 This is a detailed schematic diagram of the cooling box in this invention.

[0029] The markings in the diagram are: 1. Peripheral frame; 2. Guide groove; 3. Pressure rod; 4. Connecting shaft; 5. Return spring; 6. Soft pad; 7. Connecting bolt; 8. Contact rod; 9. Connecting sleeve; 10. Abutment rod; 11. Linkage rotating rod; 12. Servo motor; 13. Motor platform; 14. Peripheral plate; 15. Cooling box; 16. Water spray pipe; 17. Air spray pipe; 18. External pipe; 19. Temperature detection head; 20. Intelligent identification device; 21. Conveyor belt. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Reference Figure 1-4 , Example: An anti-adhesion cooling device for powder coating production, comprising an external frame 1 as the main body of the frame, with two guide grooves symmetrically opened on its outer side surface. A pressure rod 3 is slidably inserted into the guide grooves 2 via the grooves. Two connecting shafts 4 are inserted into the symmetrical ends of the side surface of the pressure rod 3. A return spring 5 is provided on the outer side surface of the connecting shaft 4. A soft pad 6 is provided on the bottom surface of the pressure rod 3. The soft pad 6 is connected to the pressure rod 3 by connecting bolts 7. A connecting sleeve 9 is provided at the upper end of the pressure rod 3. The upper and lower ends of the connecting sleeve 9 are respectively provided with the connecting sleeve 9 and the abutment rod 10. A contact rod 8 is fixedly connected to the upper surface of the pressure rod 3. A abutment rod 10 is provided at one end of the connecting sleeve 9 opposite to the contact rod 8.

[0032] The external frame 1 houses the corresponding conveying components. An auxiliary spring-loaded assembly, consisting of guide groove 2, pressure rod 3, connecting shaft 4, and return spring 5, allows the soft pad 6 on its side surface to intermittently contact the material on the bottom conveyor belt at appropriate times. Even after cooling, any remaining adhesive coating will partially break down under the contact of the soft pad 6. The spring-loaded contact of the soft pad 6 is achieved primarily through the interaction between the contact rod 8, connecting sleeve 9, abutment rod 10, and return spring 5 connected to the other end. Using this assembly, operators can separate the remaining adhesive material under mechanical stress after cooling, further improving the overall adhesion separation rate. The overall structure is simple and easy to operate.

[0033] The external frame 1, as a frame component, has a guide groove 2 on its side forming a sliding guide structure, allowing the pressure rod 3 to slide vertically. After sliding, the connecting shafts 4 inserted at both ends further restrict the movement trajectory of the pressure rod 3. At the same time, the return spring 5 at its lower end plays a resetting role. When the pressure rod 3 is acted upon by the upper contact rod 8, it presses down on the return spring 5, causing the soft pad 6 connected to the pressure rod 3 to release the material on the conveyor component. Subsequently, due to the spring's action, a reset is achieved, and after resetting, due to the vibration effect, the soft pad 6 will contact the conveyor belt surface at a high frequency and low force.

[0034] The soft pad 6 is connected to the pressure rod 3 by means of connecting bolt 7. The soft pad 6 is made of a relatively soft material. After it comes into contact with the surface of the conveyor belt, it will protect the paint on the bottom to a considerable extent. However, the soft pad 6 will inevitably get some paint on it during contact, so it needs to be replaced regularly.

[0035] Inside the connecting sleeve 9, the contact rod 8 is contacted by the upper abutment rod 10. When it moves downward, it will cause the contact rod 8 to move downward. However, when the action of the abutment rod 10 is removed, the upper end of the contact rod 8 will relax, and then the contact rod 8 will move upward and continue to contact the abutment rod 10 downward again, forming repeated oscillations.

[0036] One end of the abutment 10 is connected to a linkage rotating rod 11 relative to the connecting sleeve 9. One end of the linkage rotating rod 11 is connected to a servo motor 12 relative to the abutment 10. One end of the servo motor 12 is fixedly connected to a motor platform 13 relative to the linkage rotating rod 11. The motor platform 13 is fixedly connected to the upper surface of the peripheral frame 1.

[0037] The upper end of the abutment rod 10 is the power source for the contact, with the top servo motor 12 being the primary power source. It is connected to a smart device at the other end and rotates when force is detected. Power is then transmitted between the abutment rod 10 and the externally connected linkage rod 11, forming an intermittent contact device. The bottom motor platform 13 serves as a structure to support the entire servo motor 12.

[0038] The outer frame 1 has an outer plate 14 on its side surface, and multiple cooling boxes 15 are symmetrically arranged on the outside of the outer plate 14. The structure used for conveying is placed inside the outer plate 14, and together with the multiple cooling boxes 15 arranged on its side, a relatively closed environment for cooling is formed.

[0039] The outer side surface of the cooling box 15 is provided with a water spray pipe 16 and an air jet pipe 17. The water spray pipe 16 sprays water for cooling outward at high pressure to form a water mist, and the air jet pipe 17 at the bottom lifts the water mist upward, thereby achieving long-term cooling.

[0040] Multiple external pipes 18 are provided on the outer side surface of the cooling box 15. External air and water for cooling are introduced from the outside through the external pipes 18 to cool the material on the conveyor belt and prevent it from sticking together.

[0041] Multiple temperature sensors 19 are provided on the outer surface of the peripheral frame 1. The temperature sensors 19 are used to detect the temperature at different internal locations to assist in monitoring the cooling effect.

[0042] An intelligent recognition device 20 is installed on the upper surface of the external frame 1. The intelligent recognition device 20 is used to capture images of the moving materials on the conveyor belt, mainly to detect cases of adhesion, and then to prevent adhesion by vibrating the mechanical structure again.

[0043] The external frame 1 is equipped with a conveyor belt 21. The cooled powder coating is transported outward using the conveyor belt 21.

[0044] The implementation principle of an embodiment of an anti-adhesion cooling device for powder coating production according to the present invention is as follows: A corresponding conveying component is placed inside the external frame 1. With the aid of an auxiliary spring-loaded assembly consisting of a guide groove 2, a pressure rod 3, a connecting shaft 4, and a return spring 5, the soft pad 6 placed on its side surface can intermittently contact the material on the bottom conveyor belt at appropriate times. Coating that remains adhered after cooling will partially break down under the contact of the soft pad 6. The spring-loaded contact of the soft pad 6 is mainly achieved through the interaction between the contact rod 8, connecting sleeve 9, abutment rod 10 connected to the other end, and the return spring 5. Through the above components, the operator can separate the still-adhesive material under mechanical stress after cooling, thereby further improving the overall adhesion dissociation degree. The overall structure is simple and easy to operate.

[0045] The external frame 1, as a frame component, has a guide groove 2 on its side forming a sliding guide structure, allowing the pressure rod 3 to slide vertically. After sliding, the connecting shafts 4 inserted at both ends further restrict the movement trajectory of the pressure rod 3. At the same time, the return spring 5 at its lower end plays a resetting role. When the pressure rod 3 is acted upon by the upper contact rod 8, it presses down on the return spring 5, causing the soft pad 6 connected to the pressure rod 3 to release the material on the conveyor component. Subsequently, due to the spring's action, a reset is achieved, and after resetting, due to the vibration effect, the soft pad 6 will contact the conveyor belt surface at a high frequency and low force.

[0046] The soft pad 6 is connected to the pressure rod 3 by means of connecting bolt 7. The soft pad 6 is made of a relatively soft material. After it comes into contact with the surface of the conveyor belt, it will protect the paint on the bottom to a considerable extent. However, the soft pad 6 will inevitably get some paint on it during contact, so it needs to be replaced regularly.

[0047] Inside the connecting sleeve 9, the contact rod 8 is contacted by the upper abutment rod 10. When it moves downward, it will cause the contact rod 8 to move downward. However, when the action of the abutment rod 10 is removed, the upper end of the contact rod 8 will relax, and then the contact rod 8 will move upward and continue to contact the abutment rod 10 downward again, forming repeated oscillations.

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cooling device for preventing sticking in the production of powder coatings, comprising an external frame (1), characterized in that: The external frame (1) serves as the main body of the frame. Two guide grooves (2) are symmetrically opened on its outer side surface. The guide grooves (2) are slidably connected to the pressure rods (3) through the slots. Two connecting shafts (4) are symmetrically inserted on the side surface of the pressure rods (3). A return spring (5) is provided on the outer side surface of the connecting shafts (4). A soft pad (6) is provided on the bottom surface of the pressure rods (3). The soft pad (6) is connected to the pressure rods (3) through the connecting bolts (7). A connecting sleeve (9) is provided at the upper end of the pressure rods (3). A connecting sleeve (9) and a stop rod (10) are respectively provided at the upper and lower ends of the connecting sleeve (9). A contact rod (8) is fixedly connected to the upper surface of the pressure rods (3). A stop rod (10) is provided at one end of the connecting sleeve (9) opposite to the contact rod (8).

2. The anti-adhesion cooling device for powder coating production as described in claim 1, characterized in that: One end of the abutment (10) relative to the connecting sleeve (9) is connected to a linkage rotating rod (11), and one end of the linkage rotating rod (11) relative to the abutment (10) is connected to a servo motor (12). One end of the servo motor (12) relative to the linkage rotating rod (11) is fixedly connected to a motor platform (13), and the motor platform (13) is fixedly connected to the upper surface of the peripheral frame (1).

3. The anti-adhesion cooling device for powder coating production as described in claim 1, characterized in that: The side surface of the peripheral frame (1) is provided with an outer plate (14), and multiple cooling boxes (15) are symmetrically arranged on the outside of the outer plate (14).

4. The anti-adhesion cooling device for powder coating production as described in claim 3, characterized in that: The outer side surface of the cooling box (15) is provided with a water spray pipe (16) and an air jet pipe (17).

5. The anti-adhesion cooling device for powder coating production as described in claim 3, characterized in that: The outer side surface of the cooling box (15) is provided with multiple external pipes (18).

6. The anti-adhesion cooling device for powder coating production as described in claim 1, characterized in that: The external side surface of the peripheral frame (1) is provided with multiple temperature detection heads (19).

7. The anti-adhesion cooling device for powder coating production as described in claim 1, characterized in that: The upper surface of the peripheral frame (1) is provided with an intelligent identification device (20).

8. The anti-adhesion cooling device for powder coating production as described in claim 1, characterized in that: The peripheral frame (1) is equipped with a conveyor belt (21).

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