Powder material dosing station

Abstract

This utility model provides a powder material dispensing platform, relating to the field of powder material dispensing technology. It includes a hopper and a dispensing box, with a sealing dispensing mechanism on the dispensing box. The sealing dispensing mechanism includes a box cover at the box opening, a perforated plate inside the box, and an exhaust fan on the outside of the box. A conical block is embedded in the center of the perforated plate, and a toothed ring is rotatably connected to the inclined side of the conical block. By setting the box cover, the box cover presses against the box opening, forming a sealed cavity with no dust escape channel. Furthermore, by setting the exhaust fan, a stable airflow field is formed from top to bottom. The airflow forces the powder to move downwards, preventing suspension or reverse diffusion. The filter connector traps the powder in the receiving pipe, ensuring the exhaust gas from the exhaust fan is clean. The exhaust fan runs continuously, so even if powder bursts during bag breaking, the airflow can capture it in real time and guide it into the hopper.

Description

Technical Field

[0001] This utility model relates to the field of powder material dispensing technology, and in particular to a powder material dispensing station. Background Technology

[0002] When solid materials for powder coatings, including resins, pigments, fillers, and additives, are fed into an extruder, a slit is cut in the material bag to pour out the material, causing dust to spread everywhere. Therefore, a solid material feeding platform for powder coatings, disclosed in CN221606309U, uses an electric push rod to move the top plate downward, causing the dustproof component to contact the inner bottom wall of the feeding tank. Then, the material bag is placed on top of the dustproof component, and the material bag is rotated to cut open the bottom of the material bag, allowing the material to flow out. The electric push rod is then activated to slowly raise the top plate, allowing all the material to flow out. Because the material is close to the inner bottom wall of the feeding tank, the falling height is not high, preventing dust from spreading everywhere.

[0003] However, the dustproof assembly consists only of a control outer ring plate, connecting rod, intermediate plate, and blade, with no top cover or negative pressure collection device. When the blade cuts open the packaging bag, the compressed air inside is released instantaneously, potentially carrying dust upwards. Utility Model Content

[0004] The purpose of this utility model is to solve the problems existing in the prior art by proposing a powder material feeding platform.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a powder material dispensing platform, including a hopper and a dispensing box, wherein the dispensing box is provided with;

[0006] A sealed dispensing mechanism includes a cover at the opening of a dispensing box, a perforated plate inside the dispensing box, and an exhaust fan outside the dispensing box. A conical block is embedded in the center of the surface of the perforated plate, and a toothed ring is rotatably connected to the inclined side of the conical block. A blade is fixedly installed on one side of the top of the toothed ring. A receiving pipe is provided between the lower edge of the perforated plate and the feed inlet of the hopper. The air inlet of the exhaust fan is connected to the wall of the receiving pipe through a filter joint. The sealed dispensing mechanism is used for sealed dispensing of powder materials.

[0007] Preferably, the sealing and dispensing mechanism further includes an electric gear and an internal electric push rod. The electric gear is embedded in the conical block and meshes with the gear ring. The center of the upper surface of the perforated plate is recessed and the conical block is inserted into the recess of the perforated plate. External electric push rods are provided between the bottom surfaces of the box cover and the outer wall of the dispensing box.

[0008] Preferably, the inner electric push rod is vertically installed at the bottom of the recessed area on the upper surface of the hollow plate, and the telescopic end of the inner electric push rod is fixedly connected to the bottom of the conical block.

[0009] Preferably, the collection box is also equipped with;

[0010] The clamping mechanism includes a sliding plate disposed on the bottom surface of the box cover. Several hook arms are hinged to the bottom surface of the sliding plate and arranged in a circular array around the conical block. A lifting plate is disposed coaxially below the sliding plate. A connecting arm is hinged between the upper edge of the lifting plate and each hook arm.

[0011] Preferably, an internal electric telescopic rod that extends downward and is fixedly connected to the center of the upper surface of the lifting plate is fixedly installed through the center of the upper surface of the skateboard.

[0012] Preferably, the clamping mechanism further includes a large cylinder that is fixedly installed through the center of the upper surface of the box cover, the edge of the slide plate is slidably connected to the inner wall of the large cylinder, and a number of external electric telescopic rods for driving the slide plate to rise and fall are fixedly installed through the top edge of the large cylinder.

[0013] Preferably, a small cylinder is fixedly installed through the center of the top of the large cylinder, and the inner wall of the small cylinder is inserted into the cylinder body of the inner electric telescopic rod.

[0014] Preferably, a push plate is slidably installed on one side of the upper surface of the perforated plate, and a valve plate is inserted through the other side of the upper surface of the perforated plate to form the dispensing box. Hydraulic rods are provided between the push plate and the dispensing box, as well as between the valve plate and the dispensing box.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] 1. In this utility model, by setting a box cover, the box cover presses against the opening of the feeding box to form a sealed cavity, eliminating the dust escape channel. Furthermore, by setting an exhaust fan, a stable airflow field is formed from top to bottom. The airflow forces the powder to move downwards, avoiding suspension or reverse diffusion. The filter joint intercepts the powder in the receiving pipe, ensuring that the exhaust gas discharged by the exhaust fan is clean. The exhaust fan runs continuously, so even if the powder bursts at the moment of bag breaking, the airflow can capture it in real time and guide it into the hopper.

[0017] 2. In this utility model, the lifting plate descends and swings downwards under the connecting action of the connecting arm until it pierces the upper surface of the packaging bag. Then, the sliding plate rises to realize the synchronous lifting and lowering of the lifting plate. This allows the packaging bag to be lifted up under the piercing action of several hook arms, thus achieving the complete emptying of the internal powder material. Attached Figure Description

[0018] Figure 1 A three-dimensional structural diagram of the powder material dispensing platform is provided for this utility model;

[0019] Figure 2 This utility model proposes a powder material dispensing platform. Figure 1 A schematic diagram of the rear view structure;

[0020] Figure 3 This utility model proposes a powder material dispensing platform. Figure 1 A schematic diagram of the side view structure;

[0021] Figure 4 for Figure 2 Side sectional view;

[0022] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0023] Legend: 1. Hopper; 2. Feeding box; 3. Box cover; 4. External electric push rod; 5. Large cylinder; 6. External electric telescopic rod; 7. Small cylinder; 8. Exhaust fan; 9. Push plate; 10. Valve plate; 11. Hydraulic rod; 12. Material receiving pipe; 13. Internal electric push rod; 14. Conical block; 15. Gear ring; 16. Blade; 17. Hook arm; 18. Slide plate; 19. Connecting arm; 20. Lifting plate; 21. Internal electric telescopic rod; 22. Hollow plate; 23. Electric gear. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0026] like Figures 1-5As shown, the powder material dispensing platform includes a hopper 1 and a dispensing box 2. The dispensing box 2 is equipped with a sealing dispensing mechanism. The sealing dispensing mechanism includes a box cover 3 located at the opening of the dispensing box 2. External electric push rods 4 are installed between the bottom sides of the box cover 3 and the outer wall of the dispensing box 2. The external electric push rods 4 are used to extend and retract to drive the box cover 3 to rise and open or fall and close. A perforated plate 22 is installed inside the dispensing box 2, and an exhaust fan 8 is installed outside the dispensing box 2. The perforated plate 22 is used to place bagged powder material, and the exhaust fan 8 is used for exhaust. The airflow generated by the exhaust fan 8 moves from top to bottom, which can make the powder material that is raised move downward under the action of the airflow. A conical block 14 is embedded in the center of the surface of the perforated plate 22. A toothed ring 15 is rotatably connected to the inclined side of the conical block 14. The top side of the toothed ring 15 is fixed. The bagged powder material, equipped with blades 16 and placed on the perforated plate 22, is punctured by the conical block 14. The blades 16 revolve through the rotation of the toothed ring 15, causing the bottom of the packaging bag to break and allowing the powder material to leak out. A receiving pipe 12 is provided between the lower edge of the perforated plate 22 and the feed inlet of the hopper 1. The air inlet of the exhaust fan 8 is connected to the wall of the receiving pipe 12 through a filter joint. The filter joint can intercept the powder material in the airflow, preventing the powder material from being drawn out of the dispensing box 2 from the receiving pipe 12. The leaked powder material from the packaging bag falls into the receiving pipe 12 through the perforated plate 22 and enters the hopper 1 along the receiving pipe 12. In addition, the receiving pipe 12 in this solution can be opened and closed by a built-in switch valve, and the sealing dispensing mechanism is used for the sealed dispensing of powder material.

[0027] The sealing and dispensing mechanism also includes an electric gear 23 and an inner electric push rod 13. The electric gear 23 is embedded in the conical block 14 and meshes with the toothed ring 15. The center of the upper surface of the perforated plate 22 is recessed, and the conical block 14 is inserted into the recess of the perforated plate 22. The inner electric push rod 13 is vertically installed at the bottom of the recess on the upper surface of the perforated plate 22, and the telescopic end of the inner electric push rod 13 is fixedly connected to the bottom of the conical block 14. By driving the electric gear 23 to rotate by installing a motor in the conical block 14, the meshing toothed ring 15 can be rotated. The retraction of the inner electric push rod 13 can lower the conical block 14 to a position below the upper surface of the perforated plate 22.

[0028] The delivery box 2 is also equipped with a clamping mechanism.

[0029] The clamping mechanism includes a sliding plate 18 mounted on the bottom surface of the box cover 3. Several hook arms 17 are hinged to the bottom surface of the sliding plate 18 and arranged in a circular array around the conical block 14. A lifting plate 20 is coaxially arranged below the sliding plate 18. A connecting arm 19 is hinged between the upper edge of the lifting plate 20 and each hook arm 17. An internal electric telescopic rod 21 is fixedly installed through the center of the upper surface of the sliding plate 18 and extends downward and is fixedly connected to the center of the upper surface of the lifting plate 20. When the lifting plate 20 descends, it swings downward under the connection of the connecting arm 19 until it pierces the upper surface of the packaging bag. Then, the sliding plate 18 rises to realize the synchronous rise and fall of the lifting plate 20. This allows the packaging bag to be lifted by the piercing action of several hook arms 17, so that the internal powder material can be emptied cleanly. In addition, the swing end of the hook arm 17 in this solution is set with a pointed tip, which facilitates piercing the packaging bag. The lifting of the hook arm 17 can lift the packaging bag and, after the powder material inside the packaging bag is emptied cleanly, the hook arm 17 swings up to a horizontal state to detach from the packaging bag, so that the packaging bag falls onto the perforated plate 22.

[0030] The clamping mechanism also includes a large cylinder 5 that is fixedly installed through the center of the upper surface of the box cover 3. The edge of the slide plate 18 is slidably connected to the inner wall of the large cylinder 5, and several external electric telescopic rods 6 for driving the slide plate 18 to rise and fall are fixedly installed through the top edge of the large cylinder 5. The slide plate 18 can be lowered or raised by extending and retracting the external electric telescopic rods 6. A small cylinder 7 is fixedly installed through the center of the top of the large cylinder 5. The inner wall of the small cylinder 7 is inserted into the cylinder body of the inner electric telescopic rod 21. The small cylinder 7 is used to facilitate the storage of the inner electric telescopic rod 21 when the slide plate 18 rises. The lifting plate 20 can be lowered or raised by extending and retracting the inner electric telescopic rod 21. In addition, this solution can choose to open a hole in the top of the large cylinder 5 to ensure smooth airflow, thereby ensuring that the exhaust fan 8 can start smoothly.

[0031] A push plate 9 is slidably installed on one side of the upper surface of the perforated plate 22. A valve plate 10 is inserted through the other side of the upper surface of the perforated plate 22. Hydraulic rods 11 are provided between the push plate 9 and the delivery box 2, as well as between the valve plate 10 and the delivery box 2. The push plate 9 or the valve plate 10 can be moved by extending and retracting the hydraulic rods 11 at different positions. After the powder material in the packaging bag is poured out, when the cone block 14 is lowered below the upper surface of the perforated plate 22 and the hook arm 17 is completely retracted into the large cylinder 5, the valve plate 10 is lowered, and the empty packaging bag on the upper surface of the perforated plate 22 is pushed out of the delivery box 2 by the action of the push plate 9.

[0032] Working principle

[0033] The outer electric push rod 4 extends to open the lid 3, allowing the bagged powder material to be placed into the feeding box 2 and placed on the perforated plate 22. The inner electric telescopic rod 21 extends simultaneously to lower the lifting plate 20. The connecting arm 19 pushes the hook arm 17 downward, with its tip piercing the top of the packaging bag. The inner electric push rod 13 extends to raise the conical block 14, piercing the center of the bottom of the packaging bag. The electric gear 23 starts to drive the gear ring 15 to rotate, causing the blade 16 to revolve around the conical block 14, cutting open the bottom of the packaging bag to form a ring-shaped crack, and the powder begins to leak. The outer electric telescopic rod 6 retracts to raise the sliding plate 18, and the hook arm 17 simultaneously lifts the packaging bag. The powder inside the bag accelerates due to gravity and flows out from the bottom crack, passing through the perforated plate 22 and the receiving pipe 12 into the hopper 1.

[0034] The wiring diagrams for the external electric push rod 4, external electric telescopic rod 6, exhaust fan 8, hydraulic rod 11, internal electric push rod 13, internal electric telescopic rod 21, and electric gear 23 in this utility model are common knowledge in the field. Their working principles are known technologies. The appropriate model is selected according to actual use. Therefore, the control methods and wiring layouts for the external electric push rod 4, external electric telescopic rod 6, exhaust fan 8, hydraulic rod 11, internal electric push rod 13, internal electric telescopic rod 21, and electric gear 23 will not be explained in detail.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A powder material feeding platform, comprising a hopper (1) and a feeding box (2), characterized in that: The delivery box (2) is equipped with; A sealed dispensing mechanism is provided. The sealed dispensing mechanism includes a box cover (3) set at the opening of the dispensing box (2), a perforated plate (22) installed inside the dispensing box (2), and an exhaust fan (8) set on the outside of the dispensing box (2). A conical block (14) is embedded in the center of the surface of the perforated plate (22). A toothed ring (15) is rotatably connected to the inclined side of the conical block (14). A blade (16) is fixedly installed on one side of the top of the toothed ring (15). A receiving pipe (12) is provided between the lower edge of the perforated plate (22) and the feed inlet of the hopper (1). The air inlet of the exhaust fan (8) is connected to the wall of the receiving pipe (12) through a filter joint. The sealed dispensing mechanism is used for sealed dispensing of powder materials.

2. The powder material dispensing station according to claim 1, characterized in that: The sealing and dispensing mechanism also includes an electric gear (23) and an inner electric push rod (13). The electric gear (23) is embedded in the conical block (14) and meshes with the gear ring (15). The center of the upper surface of the hollow plate (22) is recessed and the conical block (14) is inserted into the recess of the hollow plate (22). An outer electric push rod (4) is provided between the bottom sides of the box cover (3) and the outer wall of the dispensing box (2).

3. The powder material dispensing station according to claim 2, characterized in that: The inner electric push rod (13) is vertically installed at the bottom of the recessed area on the upper surface of the hollow plate (22), and the telescopic end of the inner electric push rod (13) is fixedly connected to the bottom of the cone block (14).

4. The powder material dispensing station according to claim 1, characterized in that: The collection box (2) is also equipped with; The clamping mechanism includes a sliding plate (18) disposed on the bottom surface of the box cover (3). The bottom surface of the sliding plate (18) is hinged with a plurality of hook arms (17) arranged in a ring array around the conical block (14), and a lifting plate (20) is disposed coaxially below the sliding plate (18). The upper surface edge of the lifting plate (20) is hinged with a connecting arm (19) to each hook arm (17).

5. The powder material dispensing station according to claim 4, characterized in that: An internal electric telescopic rod (21) is fixedly installed through the center of the upper surface of the slide plate (18) and extends downward and is fixedly connected to the center of the upper surface of the lifting plate (20).

6. The powder material dispensing station according to claim 4, characterized in that: The clamping mechanism also includes a large cylinder (5) that is fixedly installed through the center of the upper surface of the box cover (3). The edge of the slide plate (18) is slidably connected to the inner wall of the large cylinder (5), and a number of external electric telescopic rods (6) for driving the slide plate (18) to rise and fall are fixedly installed through the top edge of the large cylinder (5).

7. The powder material dispensing station according to claim 6, characterized in that: A small cylinder (7) is fixedly installed through the center of the top of the large cylinder (5), and the inner wall of the small cylinder (7) is inserted into the cylinder body of the inner electric telescopic rod (21).

8. The powder material dispensing station according to claim 1, characterized in that: A push plate (9) is slidably installed on one side of the upper surface of the perforated plate (22). A valve plate (10) is inserted through the other side of the upper surface of the perforated plate (22). A hydraulic rod (11) is provided between the push plate (9) and the delivery box (2) as well as between the valve plate (10) and the delivery box (2).

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