Powder coating additive dosing device

Abstract

The utility model relates to additive adding equipment technical field especially relates to a kind of powder coating additive quantitative feeding device, including work stand, mixing bin and control unit, at least two sub-warehouses are horizontally equidistantly equipped on the work stand, and quantitative feeding mechanism is equipped in each sub-warehouse, the mixing bin is slidably connected on work stand by first telescopic piece, for moving to the lower end of different sub-warehouses and receiving material, and the inside of the mixing bin is equipped with the stirring mechanism for the different materials entering mixing bin inside are agitated, the utility model is equipped with multiple sub-warehouses with quantitative feeding mechanism on work stand, and cooperate with the mixing bin and control unit that can slide, realize the synchronous quantitative feeding and stirring when mixing bin moves to the lower end of different sub-warehouses, so that each additive is immediately mixed with the material in bin after being put in, effectively avoid the problem of poor mixing uniformity caused by material stratification.

Description

Technical Field

[0001] This utility model relates to the field of additive addition equipment technology, and in particular to a quantitative dispensing device for powder coating additives. Background Technology

[0002] In the industrial production process of powder coatings, the batching process is the key link that determines the performance of coating products. At present, the mainstream automatic batching machines for powder coatings in the industry generally use multiple sub-bins (2) to add quantitative materials separately. After all the additives have been delivered, the stirring mechanism in the main silo is started again to concentrate the mixed materials and finally deliver the stirred materials to the main stirring mechanism to complete the subsequent processing.

[0003] However, the current feeding mode, which adopts the method of first piling up materials and then uniformly mixing them, is prone to causing different additives to form layers in the total silo due to differences in bulk density and particle size. Subsequent centralized mixing requires a long time to initially disperse the layers, and small doses of functional additives are prone to forming local concentration blind spots due to insufficient dispersion, resulting in fluctuations in the performance of the final coating product.

[0004] Based on the above situation, we have made improvements and proposed a powder coating additive quantitative dispensing device. Utility Model Content

[0005] This invention provides a powder coating additive quantitative dispensing device to solve the problems existing in the prior art.

[0006] The technical problem solved by this utility model is achieved by the following technical solution: A powder coating additive quantitative dispensing device includes a working frame, a mixing hopper, and a control unit. At least two dispensing hoppers are arranged horizontally at equal intervals on the working frame, and each dispensing hopper is equipped with a quantitative feeding mechanism. The mixing hopper is slidably connected to the working frame via a first telescopic member and is used to move to the lower end of different dispensing hoppers to receive materials. The mixing hopper is equipped with a stirring mechanism inside for agitating different materials entering the mixing hopper. The control unit is used to control the mixing hopper to move to the lower end of different dispensing hoppers and simultaneously control the quantitative feeding mechanism of the dispensing hopper to open for quantitative dispensing and the stirring mechanism to synchronously stir the materials in the mixing hopper.

[0007] Preferably, the control unit includes a controller and photoelectric sensors mounted on the work frame and corresponding to the dispensing bins. The mixing bin is provided with a metal sensing plate. The photoelectric sensors are electrically connected to the controller. When the mixing bin moves to below the target dispensing bin, the metal sensing plate aligns with the corresponding photoelectric sensor. The photoelectric sensor sends a positioning signal to the controller. Based on the signal, the controller controls the mixing bin to stop moving and triggers the quantitative feeding mechanism to open.

[0008] Preferably, the quantitative feeding mechanism includes a fixed ring and a distributing ring rotatably connected inside the fixed ring. The distributing ring has multiple distributing cavities equidistantly spaced on its circumference, and the working frame is equipped with a first motor whose output end is connected to the distributing ring.

[0009] Preferably, a feeding pipe is slidably connected to the lower end of the fixed ring at the output port, and the feeding pipe is extended and retracted by a second telescopic member installed on the fixed ring.

[0010] Preferably, the stirring mechanism includes a second motor installed on one side of the mixing hopper and a plurality of stirring rods disposed on the output shaft of the second motor.

[0011] Preferably, it also includes a discharge pipe, which is Y-shaped. The two input ends of the discharge pipe are located on one side of the two outermost material distribution bins, and the output end of the discharge pipe corresponds to the input end of the subsequent mixing equipment. The output end of the mixing bin is provided with a control valve for feeding material into the discharge pipe.

[0012] The beneficial effects of this utility model are: by setting multiple material distribution bins with quantitative feeding mechanisms on the work frame, and cooperating with a sliding mixing bin and control unit, synchronous quantitative feeding and stirring are realized when the mixing bin moves to the lower end of different material distribution bins, so that each additive is fully mixed with the existing materials in the bin immediately after being added, effectively avoiding the problem of poor mixing uniformity caused by material stratification. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the isometric structure provided by this utility model; Figure 2 This is a partial cross-sectional structural schematic diagram provided by the present invention; Figure 3 A cross-sectional structural diagram of the quantitative feeding mechanism provided by this utility model.

[0015] In the diagram, 1. Working frame; 2. Distributing bin; 3. Mixing bin; 4. First telescopic component; 5. Controller; 6. Photoelectric sensor; 7. Metal sensing plate; 8. Fixing ring; 9. Distributing ring; 10. Distributing chamber; 11. First motor; 12. Feeding pipe; 13. Second telescopic component; 14. Second motor; 15. Stirring rod; 16. Discharge pipe; 17. Control valve. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0017] Reference Figures 1-3 As shown, a powder coating additive quantitative dispensing device includes a working frame 1, a mixing bin 3, and a control unit. The working frame 1 is welded from square steel, and at least two dispensing bins 2 are fixed horizontally at equal intervals on its top. The number of dispensing bins 2 is not limited and can be set according to the type and quantity of additives to be added. They are used to store different additives such as leveling agents, matting agents, and antibacterial agents. Each dispensing bin 2 is equipped with a quantitative dispensing mechanism, which includes a fixed ring 8 and a dispensing ring 9. The fixed ring 8 is fixed to the bottom of the dispensing bin 2, and the dispensing ring 9 is rotatably connected to the fixed ring 8 through a bearing. Multiple dispensing cavities 10 are equally spaced along the circumference of the dispensing ring 9, and the volume of each dispensing cavity 10 is not limited. The dosage of the additive is set according to the requirements. For example, if the amount of matting agent added each time is 1 liter, then the volume of the dispensing chamber 10 that holds the matting agent can be set to 1 liter. The output end of the dispensing chamber 2 corresponds to the input port of the fixed ring 8. The working frame 1 is also equipped with a first motor 11 whose output end is connected to the dispensing ring 9. By controlling the rotation angle of the first motor 11, the rotation amplitude of the dispensing ring 9 can be precisely controlled, so that one piece of material in the dispensing chamber 10 falls down each time, thereby achieving the purpose of quantitative feeding. Specifically, when the dispensing chamber 2 rotates to be opposite to the input port of the fixed ring 8, the material in the dispensing chamber 2 falls into the dispensing chamber 10. When the dispensing chamber 10 containing the material rotates to the output port of the fixed ring 8, the material falls down.

[0018] The mixing hopper 3 is slidably connected to the working frame 1, and the working frame 1 is provided with a first telescopic component 4 for driving the mixing hopper 3 to slide. The first telescopic component 4 can be a hydraulic telescopic rod or other device. The first telescopic component 4 drives the mixing hopper 3 to move sequentially from the outermost distribution hopper 2 side to receive different types of materials in each distribution hopper 2. The mixing hopper 3 is provided with a stirring mechanism. The stirring mechanism includes a second motor 14 fixed to one side of the mixing hopper 3. The output shaft of the second motor 14 passes through the interior of the mixing hopper 3 and is welded with multiple stirring rods 15. When the second motor 14 starts, it can drive the stirring rods 15 to rotate, stirring the materials entering the mixing hopper 3, so that each additive is fully mixed with the existing materials in the hopper immediately after being added, effectively avoiding the problem of poor mixing uniformity caused by material stratification.

[0019] Reference Figures 1-3As shown, the control unit further includes a controller 5 and a photoelectric sensor 6. The controller 5 can be a PLC controller such as a Siemens S7-200. The photoelectric sensor 6 can be a diffuse reflective type, which is fixed on the working frame 1 by a bracket and corresponds one-to-one with the dispensing bin 2. A metal sensing plate 7 is welded to the outer wall of the mixing bin 3. The photoelectric sensor 6 is electrically connected to the controller 5 through a wire. The first motor 11, the second motor 14 and the first telescopic component 4 are all electrically connected to the controller 5. When the mixing bin 3 moves to below the target dispensing bin 2, the metal sensing plate 7 aligns with the photoelectric sensor 6 at the corresponding position. The photoelectric sensor 6 sends an electrical signal to the controller 5. The controller 5 then controls the first telescopic component 4 to stop operating and starts the first motor 11 and the second motor 14 at the same time to realize synchronous quantitative feeding after precise positioning and stirring between materials after feeding.

[0020] The lower end of the fixed ring 8 is slidably connected to the feeding pipe 12. The feeding pipe 12 is extended and retracted by the second telescopic member 13 installed on the fixed ring 8. The second telescopic member 13 can be an electric push rod, and its telescopic end is welded to the outer wall of the feeding pipe 12. When the mixing bin 3 is in place, the controller 5 controls the second telescopic member 13 to extend, driving the feeding pipe 12 to move downward and extend into the feed inlet of the mixing bin 3 to discharge material, so as to reduce dust overflow during the material falling process.

[0021] Reference Figure 1 As shown, further, it also includes a discharge pipe 16, which is Y-shaped. Its two input ends are fixed to one side of the two outermost material distribution bins 2 by brackets, and the output end of the discharge pipe 16 can be connected to the input end of the subsequent mixing equipment through a hose. The bottom of the mixing bin 3 is provided with a discharge port, and a control valve 17 is installed at the discharge port. The control valve 17 is a pneumatic butterfly valve and is electrically connected to the controller 5. When the mixing bin 3 has completed receiving and mixing all the material distribution bins 2, it moves to the input end of the discharge pipe 16 on the corresponding side. The controller 5 controls the control valve 17 to open and discharge the material into the discharge pipe 16. At this time, the first telescopic component 4 can drive the mixing bin 3 to return. During the return process, the material is fed and mixed according to the above quantitative feeding method. When it moves to the input end on the other side of the discharge pipe 16, the material is discharged.

[0022] The working process of this embodiment is as follows: The controller 5 controls the servo motor to start according to the preset formula, which drives the mixing bin 3 to move along the slide rail. When the metal induction plate 7 is aligned with the photoelectric sensor 6 corresponding to the first dispensing bin 2, the mixing bin 3 stops moving. The second telescopic component 13 drives the feeding pipe 12 to extend into the mixing bin 3. The first motor 11 drives the dispensing ring 9 to rotate, feeding a quantitative amount of material into the mixing bin 3 through the feeding pipe 12. At the same time, the second motor 14 drives the stirring rod 15 to rotate and stir. After completion, the feeding pipe 12 is reset, and the mixing bin 3 moves to the next dispensing bin 2. At this time, the second motor 14 does not stop and stirs the material in the mixing bin 3, repeating the above process. After all the materials are fed in, the mixing bin 3 moves to the input end of the discharge pipe 16, the control valve 17 is opened, and the material enters the subsequent mixing equipment through the discharge pipe 16. Then, the return motion is repeated to repeat the above quantitative feeding and stirring actions.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A powder coating additive quantitative dispensing device, characterized in that, include; The work frame (1) is provided with at least two material distribution bins (2) arranged horizontally at equal intervals, and each material distribution bin (2) is provided with a quantitative feeding mechanism; Mixing bin (3), the mixing bin (3) is slidably connected to the working frame (1) through the first telescopic member (4), and is used to move to the lower end of different material distribution bins (2) to receive materials. The mixing bin (3) is provided with a stirring mechanism for stirring different materials entering the mixing bin (3). The control unit is used to control the mixing bin (3) to move to the lower end of different distribution bins (2), and simultaneously control the quantitative feeding mechanism of the distribution bin (2) to start quantitative feeding and the stirring mechanism to synchronously stir the material in the mixing bin (3).

2. The powder coating additive quantitative dispensing device according to claim 1, characterized in that, The control unit includes a controller (5) and photoelectric sensors (6) installed on the work frame (1) and corresponding to the dispensing bins (2). The mixing bin (3) is provided with a metal sensing plate (7). The photoelectric sensor (6) is electrically connected to the controller (5). When the mixing bin (3) moves to below the target dispensing bin (2), the metal sensing plate (7) aligns with the corresponding photoelectric sensor (6). The photoelectric sensor (6) sends a positioning signal to the controller (5). Based on the signal, the controller (5) controls the mixing bin (3) to stop moving and triggers the quantitative feeding mechanism to open.

3. The powder coating additive quantitative dispensing device according to claim 1, characterized in that, The quantitative feeding mechanism includes a fixed ring (8) and a distributing ring (9) rotatably connected inside the fixed ring (8). The distributing ring (9) has multiple distributing cavities (10) equidistantly arranged on its circumference. The working frame (1) is provided with a first motor (11) whose output end is connected to the distributing ring (9).

4. The powder coating additive quantitative dispensing device according to claim 3, characterized in that, The lower end of the fixed ring (8) is slidably connected to a feeding pipe (12), which is extended and retracted by a second telescopic member (13) installed on the fixed ring (8).

5. The powder coating additive quantitative dispensing device according to claim 1, characterized in that, The stirring mechanism includes a second motor (14) installed on one side of the mixing bin (3) and a plurality of stirring rods (15) provided on the output shaft of the second motor (14).

6. The powder coating additive quantitative dispensing device according to claim 1, characterized in that, It also includes a discharge pipe (16), which is Y-shaped. The two input ends of the discharge pipe (16) are located on one side of the two outermost material distribution bins (2), and the output end of the discharge pipe (16) corresponds to the input end of the subsequent mixing equipment. The output end of the mixing bin (3) is provided with a control valve (17) for feeding material into the discharge pipe (16).

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