Quantitative feeding and mixing equipment for powder coating production

Abstract

The utility model discloses quantitative feeding and mixing equipment for powder coating production, which belongs to the technical field of powder coating production and comprises a support frame body and a mixing tank mounted on the support frame body and used for mixing powder coatings. The device is characterized in that a feeding pipe is rotationally mounted at the upper opening end of the mixing tank, and flow dividing pipes are connected to the two sides of the lower portion of the feeding pipe in a penetrating mode and connected with the interior of the mixing tank in a penetrating mode; a motor is fixedly installed on the supporting frame body, the output end of the motor is connected with a rotating rod, the rotating rod is fixedly connected into the feeding pipe, and a stirring rod is fixedly installed at the bottom of the feeding pipe; a quantity control mechanism for controlling the powder feeding quantity is arranged on the flow dividing pipe; according to the mixing amount of processing raw materials and the required feeding speed, the flow dividing pipe can perform quantitative feeding through the amount control mechanism, so that the raw materials are fully and uniformly mixed, and the quality of the prepared powder coating is improved.

Description

Technical Field

[0001] This utility model relates to the field of powder coating production technology, specifically to a quantitative feeding and mixing device for powder coating production. Background Technology

[0002] The production process of powder coatings typically includes steps such as premixing, melt extrusion, cooling, crushing, and sieving. Among these, the mixing process is crucial to ensure that the various components in the powder coating formulation are evenly dispersed, thereby guaranteeing the performance and quality of the final product. Insufficient mixing can lead to problems such as uneven color, decreased gloss, and poor mechanical properties during the use of the powder coating.

[0003] For example, patent CN213761654U discloses a mixing device for producing coating powder with good mixing effect. It includes a mixing tank body, with a discharge valve and a water inlet pipe on the outer surface of the side end of the mixing tank body, and a top cover on the outer surface of the upper end of the mixing tank body. A motor is mounted on the outer surface of the upper end of the top cover. By providing a feeding structure on one side of the mixing tank body, which consists of a rotating shaft and spiral blades, the coating powder is carried from the inlet by the spiral blades and moves directly into the mixing tank body at the discharge outlet. This facilitates the coating powder entering the mixing tank body in small, multiple batches, promoting uniform mixing of the coating powder. To accelerate the mixing speed, a pipe is installed inside the mixing tank, with a nozzle on one side that penetrates the interior of the mixing tank. This allows for easy cleaning of the mixing tank after the paint powder has been mixed, by opening the water inlet pipe. This helps prevent the mixing of different paints. Powder coating production is a physical mixing process, and uniform powder distribution is crucial for ensuring product quality. Inaccurate feed rates can lead to uneven powder mixing, affecting the performance and appearance of the final product. For example, insufficient mixing of small amounts of additives and pigments can cause defects in the coating film, such as pinholes, reduced gloss, and poor leveling.

[0004] To address the aforementioned issues, there is an urgent need for innovative designs based on existing mixing equipment used in powder coating production. Utility Model Content

[0005] The purpose of this invention is to provide a quantitative feeding and mixing device for powder coating production, in order to solve the problem mentioned in the background art that inaccurate powder feeding may lead to uneven powder mixing, thereby affecting the performance and appearance of the final product.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quantitative feeding and mixing device for powder coating production, comprising a support frame and a mixing tank mounted on the support frame for mixing powder coating. A feed pipe is rotatably installed at the upper open end of the mixing tank, and diversion pipes are connected through the two sides below the feed pipe, with the diversion pipes communicating with the interior of the mixing tank. A motor is fixedly installed on the support frame, and a rotating rod is connected to the output end of the motor. The rotating rod is fixedly connected in the feed pipe, and a stirring rod is fixedly installed at the bottom of the feed pipe. A metering mechanism for controlling the amount of powder fed is provided on the diversion pipe.

[0007] Preferably, the flow control mechanism includes a guide bracket fixedly connected to the diversion pipe, a guide ring fixedly installed on the guide bracket, a material distribution rod slidably connected longitudinally in the guide ring, and a sealing seat fixedly installed on the upper end face of the material distribution rod.

[0008] Preferably, the sealing seat moves upward and engages with the lower opening of the diversion pipe, and the upper side of the sealing seat is inclined.

[0009] Preferably, a lifting frame is slidably connected through the guide bracket, and the lifting frame is fixedly connected between the two batching rods.

[0010] Preferably, an upper positioning plate is fixedly installed on the diversion pipe, an electric telescopic rod is fixedly installed on the upper positioning plate, a lower positioning plate is connected to the output end of the electric telescopic rod, and the lower positioning plate is fixedly installed on the lifting frame.

[0011] Preferably, the diversion pipe is equipped with a vibration mechanism to facilitate the smooth entry of powder into the mixing tank.

[0012] Preferably, the vibration mechanism includes a support base fixedly installed on the diversion pipe, a vibration rod slidably connected to the support base, the vibration rod being disposed on the outer side of the diversion pipe, and a power base being fixedly installed on the side of the vibration rod away from the diversion pipe.

[0013] Preferably, the outer side of the diverter is elastically connected with an elastic sheet, and the inclined surface of the elastic sheet is set on the outside of the power seat; multiple protrusions are fixed at equal angles on the inner wall of the mixing tank, and the elastic sheet rotates circumferentially to contact and compress the arc surface of the protrusion.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the quantitative feeding and mixing equipment for powder coating production conveys materials through the feed pipe and the distribution pipe, and during the feeding process, the distribution pipe is driven to rotate circumferentially by the rotating shaft, so that the powder material can be evenly dispersed into the mixing tank, which assists in the powder coating mixing process.

[0015] Furthermore, the distribution pipe is equipped with a metering mechanism to control the amount of powder fed. According to the required amount and speed of raw material feeding, the distribution rods on both sides are controlled to move downward synchronously through the lifting frame. The distribution rods drive the sealing seat to move downward, and the distance between the sealing seat and the lower opening of the distribution pipe is adjusted, thereby controlling the quantitative discharge of the distribution pipe, so as to keep the raw materials fully and evenly mixed and improve the quality of the prepared product.

[0016] The electric telescopic rod pushes the lower positioning plate downward, and the lower positioning plate drives the lifting frame to move longitudinally through the guide bracket, thereby achieving the purpose of adjusting the position of the sealing seat.

[0017] Furthermore, a vibration mechanism is installed on the diversion pipe to assist the smooth entry of powder into the mixing tank. Some powder raw materials are prone to getting stuck in the diversion pipe during the feeding process, affecting the smoothness of feeding. The vibration rod is controlled to reciprocate and strike the outside of the diversion pipe, so that the diversion pipe vibrates to assist the powder raw materials to be discharged, thereby maintaining the smoothness of powder feeding.

[0018] During the circumferential rotation of the diverter, the elastic plates on the side can rotate and contact the protrusions on the inner wall of the mixing tank. The elastic plates are pressed against the power seat by the pressure of the protrusions, thereby generating a thrust on the vibrating rod, which enables the intermittent vibration to strike the diverter and assists in the smooth feeding of powder raw materials. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the mixing tank of this utility model.

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the mixing tank of this utility model.

[0021] Figure 3 This is a three-dimensional structural diagram of the stirring rod of this utility model.

[0022] Figure 4 This is a three-dimensional structural diagram of the material distribution rod of this utility model.

[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of the feed pipe of this utility model.

[0024] Figure 6 This is a schematic diagram of the three-dimensional structure of the protrusion of this utility model.

[0025] Figure 7 This is a three-dimensional structural diagram of the vibration rod of this utility model.

[0026] In the diagram: 1. Support frame; 2. Mixing tank; 3. Feed pipe; 4. Diverter pipe; 5. Motor; 6. Rotating rod; 7. Stirring rod; 8. Guide bracket; 9. Guide ring; 10. Distributor rod; 11. Sealing seat; 12. Upper positioning plate; 13. Electric telescopic rod; 14. Lower positioning plate; 15. Lifting frame; 16. Support seat; 17. Vibrating rod; 18. Power seat; 19. Vibration spring; 20. Elastic plate; 21. Protrusion. Detailed Implementation

[0027] 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.

[0028] Example 1: Please refer to Figures 1-7 The present invention provides the following technical solution: a quantitative feeding and mixing device for powder coating production, comprising a support frame 1 and a mixing tank 2 installed on the support frame 1 for mixing powder coating, wherein a feed pipe 3 is rotatably installed at the upper open end of the mixing tank 2, and a diversion pipe 4 is connected through both sides below the feed pipe 3, the diversion pipe 4 being connected through to the interior of the mixing tank 2; a motor 5 is fixedly installed on the support frame 1, and a rotating rod 6 is connected to the output end of the motor 5, the rotating rod 6 being fixedly connected in the feed pipe 3, and a stirring rod 7 is fixedly installed at the bottom of the feed pipe 3; a metering mechanism for controlling the amount of powder fed is provided on the diversion pipe 4.

[0029] The flow control mechanism includes a guide bracket 8 fixedly connected to the diversion pipe 4, a guide ring 9 fixedly installed on the guide bracket 8, a material distribution rod 10 longitudinally slidably connected in the guide ring 9, and a sealing seat 11 fixedly installed on the upper end face of the material distribution rod 10.

[0030] The sealing seat 11 moves upward and engages with the lower opening of the diversion pipe 4, and the upper side of the sealing seat 11 is inclined.

[0031] A lifting frame 15 is slidably connected through the guide bracket 8, and the lifting frame 15 is fixedly connected between the two batching rods 10.

[0032] An upper positioning plate 12 is fixedly installed on the diversion pipe 4. An electric telescopic rod 13 is fixedly installed on the upper positioning plate 12. The output end of the electric telescopic rod 13 is connected to a lower positioning plate 14. The lower positioning plate 14 is fixedly installed on the lifting frame 15.

[0033] In the powder coating production process, raw materials are introduced into the feed pipe 3. The raw materials enter the two side diversion pipes 4 through the feed pipe 3 and enter the mixing tank 2 through the opening at the bottom of the diversion pipe 4. The motor 5 drives the rotating rod 6 to rotate. The rotating rod 6 drives the feed pipe 3 and the stirring rod 7 to rotate synchronously. The stirring rod 7 rotates and stirs the raw materials in the mixing tank 2, realizing the function of mixing powder coating. During the rotation of the feed pipe 3, it can drive the two side diversion pipes 4 to rotate circumferentially. The circumferential rotation of the diversion pipes 4 makes the raw materials discharged inside evenly dispersed in the mixing tank 2, which helps to mix the raw materials more efficiently and evenly.

[0034] The amount and speed of raw materials added as needed are quantitatively controlled by the diversion pipe 4. The electric telescopic rod 13 pushes the lower positioning plate 14 to move longitudinally. The lower positioning plate 14 is fixed on the lifting frame 15 and moves synchronously. The lifting frame 15 moves up and down through the guide bracket 8, which drives the material distribution rods 10 on both sides to move longitudinally through the guide ring 9. The sealing seat 11 fixed above the material distribution rod 10 moves longitudinally synchronously with it, thereby adjusting the distance between the sealing seat 11 and the lower opening of the diversion pipe 4, so as to achieve the purpose of quantitative control of feeding, thereby ensuring that the raw materials can be fully mixed and uniform, and improving the quality of the prepared product.

[0035] During the rotation of the distributor pipe 4, the corresponding material distribution rod 10 below it is set to rotate circumferentially in the mixing tank 2. During the rotation of the material distribution rod 10, the raw materials at the edge of the mixing tank 2 can be mixed and processed, further improving the effect of powder coating mixing and processing.

[0036] Example 2: Based on Example 1, a vibration mechanism is also disclosed, the specific structure of which is as follows: A vibration mechanism to assist the smooth entry of powder into the mixing tank 2 is provided on the diversion pipe 4. The vibration mechanism includes a support base 16 fixedly installed on the diversion pipe 4, a vibration rod 17 slidably connected to the support base 16, the vibration rod 17 being disposed on the outer side of the diversion pipe 4, and a power base 18 being fixedly installed on the side of the vibration rod 17 away from the diversion pipe 4.

[0037] The outer side of the diversion pipe 4 is elastically connected to an elastic plate 20, and the inclined surface of the elastic plate 20 is set on the outside of the power seat 18; multiple protrusions 21 are fixed at equal angles on the inner wall of the mixing tank 2, and the elastic plate 20 rotates in a circle and contacts and squeezes the arc surface of the protrusion 21.

[0038] During the circumferential rotation of the diversion pipe 4, the elastic plate 20 connected to its external elasticity rotates and contacts the surface of the protrusion 21 at different positions on the inner wall of the mixing tank 2. The outer surface of the protrusion 21 is arc-shaped. When the elastic plate 20 contacts the arc surface of the protrusion 21, it is squeezed. At this time, the elastic plate 20 moves closer to the power seat 18, pushing the power seat 18 and the vibrating rod 17 to move towards the outer wall of the diversion pipe 4. The vibrating rod 17 strikes the outer wall of the diversion pipe 4. When the elastic plate 20 elastically deforms and separates from the surface of the protrusion 21, the vibrating rod 17 moves back to its original position under the elastic tension of the vibration spring 19. In this way, the vibrating rod 17 intermittently strikes and vibrates the diversion pipe 4. Under the action of vibration, the diversion pipe 4 can assist the discharge of internal powder raw materials, and the raw materials on the surface are blocked inside the pipe, maintaining the smooth flow of feed.

[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A powder coating production metering mixing device comprising a support frame (1) and a mixing tank (2) installed on the support frame (1) for mixing powder coating, characterized in that: The upper open end of the mixing tank (2) is rotatably provided with a feeding pipe (3), two side through connections of the feeding pipe (3) are provided with shunt pipes (4), and the shunt pipes (4) are connected with the inside of the mixing tank (2); The support frame body (1) is fixedly provided with a motor (5), the output end of the motor (5) is connected with a rotating rod (6), the rotating rod (6) is fixedly connected in the feeding pipe (3), and the bottom of the feeding pipe (3) is fixedly provided with a stirring rod (7); The shunt pipe (4) is provided with a quantity control mechanism for controlling the powder feeding amount.

2. The quantitative feeding and mixing device for powder coating production according to claim 1, characterized in that: The quantity control mechanism comprises a guide bracket (8) fixedly connected on the shunt pipe (4), the guide bracket (8) is fixedly provided with a guide ring (9), the guide ring (9) is longitudinally and slidably connected with a distribution rod (10), and the upper end surface of the distribution rod (10) is fixedly provided with a blocking seat (11).

3. The quantitative feeding and mixing apparatus for powder coating production according to claim 2, characterized in that: The blocking seat (11) is connected with the lower opening of the shunt pipe (4) through the upper side of the blocking seat (11), and the upper side of the blocking seat (11) is inclined.

4. The quantitative feeding and mixing apparatus for powder coating production according to claim 2, characterized in that: The guide bracket (8) is slidably connected with a lifting frame (15), and the lifting frame (15) is fixedly connected between the two groups of distribution rods (10).

5. The quantitative mixing device for powder coating production according to claim 4, characterized in that: The shunt pipe (4) is fixedly provided with an upper positioning piece (12), the upper positioning piece (12) is fixedly provided with an electric telescopic rod (13), the output end of the electric telescopic rod (13) is connected with a lower positioning piece (14), and the lower positioning piece (14) is fixedly installed on the lifting frame (15).

6. The quantitative mixing device for powder coating production according to claim 1, characterized in that: The shunt pipe (4) is provided with a vibration mechanism for assisting the powder to smoothly enter the mixing tank (2).

7. The quantitative mixing device for powder coating production according to claim 6, characterized in that: The vibration mechanism comprises a support seat (16) fixedly installed on the shunt pipe (4), the support seat (16) is slidably connected with a vibration rod (17), the vibration rod (17) is arranged on the outer side of the shunt pipe (4), and the side, away from the shunt pipe (4), of the vibration rod (17) is fixedly provided with a power seat (18).

8. The quantitative mixing device for powder coating production according to claim 7, characterized in that: The outer side of the shunt pipe (4) is elastically connected with an elastic sheet (20), and the inclined surface of the elastic sheet (20) is arranged on the outer side of the power seat (18); The inner wall of the mixing tank (2) is fixedly provided with a plurality of protrusions (21) at equal angles, and the circumferential rotation of the elastic sheet (20) is in contact with the arc surface of the protrusions (21) for extrusion.

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