A dust-free paint powder dispensing device

Abstract

The utility model discloses a dustless paint powder feeding device belongs to the technical field of feeding equipment, including feeding box and fixed in the feeding pipe of feeding box, the one side outer wall of feeding box is installed with rotating electrical machine, is installed with the rubbing mechanism in the feeding pipe, the surface of feeding box is installed with fan, and the fixed vent pipe in feeding box, the bottom of vent pipe is installed with a plurality of air filter core, the lower half of feeding box inboard is fixed with the discharge hopper, and the discharge end extension of discharge hopper reaches the below of feeding box, the bottom wall of feeding box is installed with two electric telescopic link of symmetry, the output of electric telescopic link is fixed with mounting panel, the mounting panel in fixed has the discharge pipe. The dustless paint powder feeding device, in the process of powder feeding, can avoid dust leakage, and can quickly crush the powder raw material, ensure uniformity of discharging.

Description

Technical Field

[0001] This utility model belongs to the technical field of feeding equipment, specifically relating to a dust-free feeding device for paint powder. Background Technology

[0002] In the paint production process, powder dispensing is a crucial intermediate step, directly impacting the quality of the finished paint, production efficiency, and the safety of the working environment. Currently, traditional paint powder dispensing methods in the industry suffer from the following problems: First, severe dust pollution. Traditional dispensing methods often employ open or simple sealed structures, easily generating large amounts of dust during the dispensing process. This not only wastes powder but also pollutes the production workshop environment. Long-term exposure to dust can seriously harm the respiratory health of operators, failing to meet modern industrial environmental protection requirements. Second, the problem of powder agglomeration is difficult to solve. During storage or transportation, paint powder is prone to agglomeration due to factors such as humidity and pressure. Traditional dispensing equipment lacks efficient pre-treatment mechanisms, and directly adding agglomerated powder to production leads to uneven dispensing, resulting in insufficient mixing of paint raw materials and affecting key performance indicators such as paint film smoothness and adhesion. Utility Model Content

[0003] The purpose of this utility model is to provide a dust-free paint powder dispensing device to solve the problems of serious dust pollution and powder agglomeration in the traditional paint powder dispensing methods mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a dust-free dispensing device for paint powder, comprising a dispensing box and a feeding pipe fixed to the dispensing box. A rotary motor is installed on one outer wall of the dispensing box, a crushing mechanism is installed inside the feeding pipe, a fan is installed on the surface of the dispensing box, and a ventilation pipe is fixed inside the dispensing box. The air supply pipe of the fan extends into the ventilation pipe, and multiple air filters are installed at the bottom of the ventilation pipe. A discharge hopper is fixed to the lower inner wall of the dispensing box, and the discharge end of the discharge hopper extends to the bottom of the dispensing box. Two electric telescopic rods are symmetrically installed on the bottom wall of the dispensing box, and an installation plate is fixed to the output end of the electric telescopic rod. The discharge pipe is fixed inside the installation plate.

[0005] In a further embodiment, the crushing mechanism consists of a protective shell and a rotating shaft. The protective shell is fixed inside the feed pipe, and the rotating shaft is rotatably connected inside the protective shell and fixedly connected to the output shaft of the rotary motor. A rotating hole is provided at the bottom of the protective shell, and a rotating column is rotatably connected inside the rotating hole.

[0006] In a further embodiment, a driving bevel gear is fixed to the outer wall of the rotating shaft, a driven bevel gear that meshes with the driving bevel gear is fixed to the top of the rotating column, and two cutting blades are symmetrically fixed to the outer wall of the rotating column.

[0007] In a further embodiment, a feed hopper is fixed to the top of the feed pipe, and a sealing cover is rotatably connected to the surface of the feed hopper via a hinge.

[0008] In a further embodiment, support legs are installed at the four bottom corners of the delivery box, and self-locking casters are installed at the bottom of the support legs.

[0009] The technical effects and advantages of this utility model are as follows:

[0010] The dust-free dispensing device for paint powder, consisting of a fan, ventilation pipe, and air filter, is a dust collection and recycling system. It can not only efficiently intercept dust particles in the dispensing box through the air filter to prevent dust from leaking out and polluting the environment, but also blow the dust attached to the surface of the air filter back to the discharge hopper when the fan blows in reverse, so as to realize dust recycling and reuse and reduce raw material waste.

[0011] The crushing mechanism adopts a meshing transmission design of active bevel gear and driven bevel gear. After the rotary motor drives the rotating shaft to rotate, it can drive the rotating column and cutting blade to rotate at high speed through gear transmission. It can quickly and evenly crush agglomerated powder, solving the problem of uneven feeding caused by powder agglomeration in traditional feeding. At the same time, the protective shell adopts an inclined surface design, which effectively avoids the accumulation of powder in the shell and ensures that the crushed powder can fall smoothly, ensuring the fineness and uniformity of the powder, and providing a guarantee for the full mixing of subsequent paint raw materials.

[0012] The electric telescopic rod can precisely adjust the extension length of the discharge pipe according to the height of the target feeding equipment, achieving precise docking with feeding ports of different heights. It eliminates the need for manual handling or adjustment of the overall equipment position, greatly reducing the difficulty of operation and improving the adaptability of the equipment to diverse production scenarios. This dust-free feeding device for paint powder can prevent dust leakage during the powder feeding process, while quickly crushing the powder raw materials to ensure uniform feeding. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are 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 structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the feed pipe of this utility model;

[0016] Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle;

[0017] Figure 4 This is a schematic diagram of the crushing mechanism of this utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the fan, vent pipe and air filter element of this utility model;

[0019] Figure 6 This is the right view of the present invention.

[0020] In the diagram: 1. Feeding box; 2. Feed pipe; 3. Feed hopper; 4. Sealing cover; 5. Rotary motor; 6. Protective shell; 7. Rotating shaft; 8. Driving bevel gear; 9. Rotating column; 10. Driven bevel gear; 11. Cutting blade; 12. Fan; 13. Vent pipe; 14. Air filter; 15. Discharge hopper; 16. Electric telescopic rod; 17. Mounting plate; 18. Discharge pipe; 19. Support leg; 20. Self-locking caster wheel. Detailed Implementation

[0021] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0022] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0023] This utility model provides, for example Figure 1-6The illustrated dust-free dispensing device for paint powder includes a dispensing box 1 and a feeding pipe 2 fixed to the dispensing box 1. A feeding hopper 3 is fixed to the top of the feeding pipe 2, and a sealing cover 4 is rotatably connected to the surface of the feeding hopper 3 via a hinge. A micro switch is installed on the sealing cover 4. A controller (not shown in the figure) is installed at a suitable position in the dispensing box 1. The controller is prior art, and its structure will not be described in detail here. A rotary motor 5 is installed on one outer wall of the dispensing box 1. A crushing mechanism is installed inside the feeding pipe 2. The crushing mechanism consists of a protective shell 6 and a rotating shaft 7. The protective shell 6 is fixed inside the feeding pipe 2, and the rotating shaft 7 is rotatably connected inside the protective shell 6 and connected to the rotary motor 5 via a coupling. The output shaft is fixedly connected. The bottom of the protective shell 6 has a rotating hole, and a rotating column 9 is rotatably connected to the rotating hole through a bearing. The outer wall of the rotating shaft 7 is fixed with a driving bevel gear 8. The top of the rotating column 9 is fixed with a driven bevel gear 10 that meshes with the driving bevel gear 8. Two cutting blades 11 are symmetrically fixed on the outer wall of the rotating column 9. The surface of the protective shell 6 is inclined, which can prevent powder from accumulating on the surface of the protective shell 6. The rotating shaft 7 and the driving bevel gear 8 are driven to rotate by the rotating motor 5. The driving bevel gear 8 drives the rotating column 9 and the cutting blades 11 to rotate through the driven bevel gear 10, which can crush the powder and prevent the powder from clumping, thus ensuring the quality of the subsequent materials.

[0024] A fan 12 is mounted on the surface of the feeding box 1, and a vent pipe 13 is fixed inside the feeding box 1. The air supply pipe of the fan 12 extends into the vent pipe 13. Multiple air holes are opened at the bottom of the vent pipe 13, and an air filter element 14 is installed inside the air holes. The surface of the air filter element 14 is made of pleated filter cloth or filter paper. This pleated structure greatly increases the filtration area of ​​the air filter element 14, which can more effectively intercept dust particles and improve filtration efficiency. A liner is provided inside the air filter element 14. The surface of the liner is evenly distributed with air holes. The opening of the liner is tightly connected to the air holes of the vent pipe 13. When the fan 12 draws air outward, Dust-laden air enters the air filter 14 from inside the housing. Through the filtration of the filter cloth or filter paper, the dust particles are trapped on the surface of the air filter 14. The purified air enters the air hole through the air hole on the liner and is then discharged through the air duct. When the fan 12 blows air inward, the airflow reverses and blows off the dust particles attached to the surface of the air filter 14, causing them to return to the inside of the feeding box 1. The fan 12 is electrically connected to the controller. Through the logic program inside the controller and the coordinated work of other components (such as the micro switch on the sealing cover 4), the working state of the fan 12 can be automatically switched.

[0025] A discharge hopper 15 is fixed to the lower inner wall of the feeding box 1, and the discharge end of the discharge hopper 15 extends to the bottom of the feeding box 1. Two electric telescopic rods 16 are symmetrically installed on the bottom wall of the feeding box 1. An installation plate 17 is fixed to the output end of the electric telescopic rod 16. A discharge pipe 18 is fixed inside the installation plate 17. The discharge pipe 18 is movably connected to the discharge end of the discharge hopper 15, and a sealing ring is fixed to the top of the discharge pipe 18 to ensure the sealing between the discharge pipe 18 and the discharge hopper 15. Through the operation of the electric telescopic rods 16, the height of the discharge pipe 18 can be flexibly adjusted according to the height of the feeding position. Support legs 19 are installed at the four corners of the bottom of the feeding box 1, and self-locking casters 20 are installed at the bottom of the support legs 19. The support legs 19 and the self-locking casters 20 facilitate the movement of the device.

[0026] All standard parts used in this utility model can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The control method of this utility model is controlled by a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming. It should be noted that the electrical components mentioned in this utility model have been sorted according to the actual situation during manufacturing, so that the wire harness will not cause the wire harness to become tangled or affect the operation. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0027] In the description of this utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Working principle: The dust-free dispensing device for paint powder first moves the device to the designated production station using the self-locking casters 20 at the bottom of the support leg 19. The self-locking function is used to fix the position of the device. Then, according to the height of the target dispensing device, the electric telescopic rod 16 is activated to adjust the height of the mounting plate 17 and the discharge pipe 18, so that the discharge pipe 18 is precisely connected with the dispensing port, ensuring that the sealing ring is tightly fitted with the discharge hopper 15. The sealing cover 4 of the feed hopper 3 is opened (the micro switch triggers the device to be ready), and the paint powder is poured into the feed hopper 3. After pouring, the sealing cover 4 is closed to ensure the sealing of the dispensing process.

[0029] The rotary motor 5 and the fan 12 are started. The rotary motor 5 drives the rotating shaft 7 in the protective shell 6 inside the feed pipe 2 to rotate. The driving bevel gear 8 on the rotating shaft 7 meshes with the driven bevel gear 10 at the top of the rotating column 9, thereby driving the rotating column 9 and the cutting blade 11 on the outer wall to rotate at high speed, crushing the powder falling into the feed pipe 2. The crushed powder falls into the discharge hopper 15 in the feeding box 1 along the inclined surface of the protective shell 6. During this process, the fan 12 draws in air to generate negative pressure in the ventilation pipe 13. The air filter element 14 at the bottom of the ventilation pipe 13 works simultaneously to filter the air in the feeding box 1. The powder dust is intercepted on the surface of the air filter element 14 to prevent dust leakage.

[0030] When a lot of dust accumulates on the surface of the air filter element 14 or when feeding is finished, the fan 12 can blow air in the opposite direction to blow the dust on the air filter element 14 into the discharge hopper 15 to achieve dust recovery. Finally, the crushed uniform powder enters the discharge pipe 18 through the discharge hopper 15 and is stably fed into the target production equipment to complete the entire dust-free feeding process. After feeding is completed, the rotary motor 5 and the fan 12 are turned off.

[0031] 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 dust-free dispensing device for paint powder, comprising a dispensing box (1) and a feed pipe (2) fixed to the dispensing box (1), characterized in that: A rotary motor (5) is installed on one side of the outer wall of the feeding box (1). A crushing mechanism is installed inside the feeding pipe (2). A fan (12) is installed on the surface of the feeding box (1). An air pipe (13) is fixed inside the feeding box (1). The air supply pipe of the fan (12) extends into the air pipe (13). Multiple air filters (14) are installed at the bottom of the air pipe (13). A discharge hopper (15) is fixed on the lower half of the inner wall of the feeding box (1). The discharge end of the discharge hopper (15) extends to the bottom of the feeding box (1). Two electric telescopic rods (16) are symmetrically installed on the bottom wall of the feeding box (1). An installation plate (17) is fixed at the output end of the electric telescopic rod (16). A discharge pipe (18) is fixed inside the installation plate (17).

2. The dust-free dispensing device for paint powder according to claim 1, characterized in that: The crushing mechanism consists of a protective shell (6) and a rotating shaft (7). The protective shell (6) is fixed inside the feed pipe (2). The rotating shaft (7) is rotatably connected inside the protective shell (6) and fixedly connected to the output shaft of the rotating motor (5). The bottom of the protective shell (6) is provided with a rotating hole, and a rotating column (9) is rotatably connected inside the rotating hole.

3. The dust-free dispensing device for paint powder according to claim 2, characterized in that: The outer wall of the rotating shaft (7) is fixed with a driving bevel gear (8), the top of the rotating column (9) is fixed with a driven bevel gear (10) that meshes with the driving bevel gear (8), and two cutting blades (11) are symmetrically fixed on the outer wall of the rotating column (9).

4. The dust-free dispensing device for paint powder according to claim 1, characterized in that: The top of the feed pipe (2) is fixed with a feed hopper (3), and the surface of the feed hopper (3) is connected to a sealing cover (4) by a hinge.

5. The dust-free dispensing device for paint powder according to claim 1, characterized in that: The bottom four corners of the delivery box (1) are equipped with support legs (19), and the bottom of the support legs (19) is equipped with self-locking casters (20).

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