Superfine powder coating grinding device for building doors and windows

Abstract

The utility model relates to the technical field of coating grinding, and discloses a building door and window superfine powder coating grinding device which comprises a lower frame, a plurality of supporting legs are fixedly connected to the outer portion of the lower frame, a lower grinding hopper and a guide shell are fixedly connected to the inner portion of the lower frame, the guide shell is arranged below the lower grinding hopper, and an upper frame is arranged on the upper surface of the lower frame. An upper grinding hopper is fixedly connected into the upper frame, a connecting shaft is fixedly connected to the upper surface of the upper grinding hopper and penetrates through the upper surface of the upper grinding hopper, and a grinding block is fixedly connected to one end of the connecting shaft. When the grinding groove in the edge of the grinding block becomes round and full due to long-term use and the grinding effect is weakened, a user can conveniently disassemble and replace the grinding block without replacing the whole device, the replacement cost is effectively reduced, and when the arc-shaped rod moves up and down, powder is poked in a reciprocating mode, so that the grinding effect is improved. And the blocking phenomenon caused by the fact that the materials are gathered at the discharging pipe opening due to light weight is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of coating grinding technology, and in particular to a grinding device for ultrafine powder coatings for building doors and windows. Background Technology

[0002] Building doors and windows are openable enclosure structures in buildings used to separate indoor and outdoor spaces, provide lighting, ventilation, safety protection and decoration functions. They are a key component of the building envelope system. Ultrafine powder coating is a solid environmentally friendly coating used for coating the surface of building doors and windows. It is applied to the substrate through electrostatic spraying or fluidized bed process and cured at high temperature to form a dense coating.

[0003] A search revealed that Chinese patent CN222518722U discloses an ultrafine powder coating grinding device. This device addresses the issue that while raw materials are initially crushed and pressed by a crushing roller, a secondary grinding process using a grinding disc and grinding plate inevitably results in some powder particles being too large to meet requirements. These particles, mixed in with the finished product, affect its quality and hinder vibratory sieving during material feeding. Therefore, the device first uses a grinding box for initial grinding of the raw materials, and then uses a first motor to control the rotation of the grinding disc in conjunction with the grinding base plate for secondary grinding, achieving ultrafine powder grinding. Simultaneously, a second motor, activated by a vibration frame mechanism, controls the vibration of a second limit frame, which in turn vibrates the filter drawer. This vibration separates the substandard powder particles from the finished product in the middle of the filter drawer, improving the overall quality of the finished product.

[0004] The above-mentioned grinding device facilitates the screening of powder. However, in the prior art, when grinding with grinding blocks, in order to ensure the grinding quality, the diamond-shaped grinding blocks are usually installed inside the diamond-shaped grinding hopper. This results in the grinding blocks being sealed inside the grinding hopper. When the edges of the grinding blocks wear and become smooth, reducing the grinding quality, it is not convenient to remove the grinding blocks from the inside of the grinding hopper for replacement. Instead, the entire grinding device needs to be replaced, increasing the replacement cost. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a grinding device for ultrafine powder coatings for building doors and windows.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a grinding device for ultrafine powder coatings for building doors and windows, comprising a lower frame, with multiple support feet fixedly connected to the outside of the lower frame, a lower grinding bucket and a guide shell fixedly connected inside the lower frame, the guide shell being disposed below the lower grinding bucket, an upper frame being disposed on the upper surface of the lower frame, an upper grinding bucket being fixedly connected inside the upper frame, a connecting shaft being fixedly connected to the upper surface of the upper grinding bucket, the connecting shaft penetrating the upper surface of the upper grinding bucket, a grinding block being fixedly connected to one end of the connecting shaft, a feed pipe being connected through the upper surface of the upper grinding bucket, a discharge pipe being slidably connected to the lower surface of the lower frame, a drive motor being fixedly installed in the middle of the upper surface of the upper grinding bucket, and a replacement component being disposed at the output end of the drive motor.

[0007] As a further description of the above technical solution:

[0008] The replacement component includes a mounting box, which is fixedly connected to the output end of the drive motor. A fixing shell is fixedly connected to one side of the mounting box, and a bidirectional stud is rotatably connected inside the fixing shell. A throttle is fixedly connected to one end of the bidirectional stud.

[0009] As a further description of the above technical solution:

[0010] The external threaded connection of the bidirectional stud has two connecting frames. A limit bracket is fixedly connected to the upper surface of the connecting frame, and an mounting block is fixedly connected to the upper surface of the connecting shaft. Limit grooves are respectively opened on both sides of the mounting block.

[0011] As a further description of the above technical solution:

[0012] An installation groove is provided inside one side of the lower frame, and a limit rod is slidably connected inside the installation groove. The limit rod is fixedly connected to the lower surface of the upper frame, and a connecting rod is fixedly connected to one side of the upper frame.

[0013] As a further description of the above technical solution:

[0014] The connecting rod has multiple toothed grooves on one side, and a stepper motor is fixedly installed on one side of the lower frame. The output end of the stepper motor is fixedly connected to a gear, and the gear is meshed with the multiple toothed grooves.

[0015] As a further description of the above technical solution:

[0016] The discharge pipe is equipped with an anti-clogging component, which includes multiple arc-shaped rods fixedly connected to the inner wall of the discharge pipe. An annular plate is fixedly connected to the outside of the discharge pipe, and multiple outer shells are fixedly connected to the upper surface of the annular plate.

[0017] As a further description of the above technical solution:

[0018] The inner surface of the outer casing is slidably connected to a connecting column, and the upper surface of the outer casing is fixedly connected to a spring. The other end of the spring is fixedly connected to the outer top of the connecting column. The lower surface of the lower frame is fixedly mounted with a drive motor, and the output end of the drive motor is fixedly connected to a protrusion. The drive motor is located on one side of the discharge pipe.

[0019] This utility model has the following beneficial effects:

[0020] 1. This utility model, through the setting of replacement components, facilitates the easy disassembly and replacement of the grinding blocks inside the grinding bucket when the grinding grooves at the edges of the grinding blocks become rounded due to long-term grinding after ultrafine powder coating grinding, which reduces the grinding effect. The connecting rod drives the upper frame to separate from the lower frame, exposing the grinding blocks. Then, the limiting position of the mounting block is released, and the mounting block is pulled out from the mounting box, which facilitates the disassembly and replacement of the grinding blocks without replacing the entire device, reducing replacement costs and helping to improve the quality of powder grinding.

[0021] 2. By setting up an anti-clogging component, this utility model utilizes the elastic force of a spring to shake the discharge pipe when ultrafine powder is discharged, which in turn drives the arc-shaped rod to move up and down, reciprocatingly poking the powder. This helps to reduce the phenomenon of material accumulating at the discharge pipe opening due to its light weight, thus preventing blockage and difficulty in discharging the powder. This facilitates the smooth discharge of ultrafine powder. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model;

[0023] Figure 2 This is a schematic diagram of the cross-sectional structure of the guide shell proposed in this utility model;

[0024] Figure 3 This is a schematic diagram of the grinding block structure proposed in this utility model;

[0025] Figure 4 This is a schematic diagram of the cross-sectional structure of the mounting block proposed in this utility model;

[0026] Figure 5 This is a schematic diagram of the fixed shell structure proposed in this utility model;

[0027] Figure 6 This is a schematic diagram of the mounting box structure proposed in this utility model;

[0028] Figure 7 This is a schematic diagram of the connecting frame structure proposed in this utility model;

[0029] Figure 8 This is a schematic diagram of the protrusion structure proposed in this utility model.

[0030] Legend:

[0031] 1. Lower frame; 2. Support foot; 3. Lower grinding bucket; 4. Guide shell; 5. Upper frame; 6. Connecting shaft; 7. Grinding block; 8. Feed pipe; 9. Discharge pipe; 10. Drive motor; 11. Mounting box; 12. Fixing shell; 13. Bidirectional stud; 14. Rotary handle; 15. Connecting frame; 16. Limiting frame; 17. Mounting block; 18. Limiting groove; 19. Upper grinding bucket; 20. Mounting groove; 21. Limiting rod; 22. Connecting rod; 23. Gear groove; 24. Stepper motor; 25. Gear; 26. Arc rod; 27. Annular plate; 28. Outer shell; 29. ​​Connecting column; 30. Spring; 31. Drive motor; 32. Protrusion. Detailed Implementation

[0032] 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.

[0033] As attached Figures 1-8 As shown, one embodiment of this utility model provides a grinding device for ultrafine powder coatings for building doors and windows, including a lower frame 1. Multiple support feet 2 are fixedly connected to the outside of the lower frame 1. A lower grinding bucket 3 and a guide shell 4 are fixedly connected inside the lower frame 1. The guide shell 4 is located below the lower grinding bucket 3. An upper frame 5 is provided on the upper surface of the lower frame 1. An upper grinding bucket 19 is fixedly connected inside the upper frame 5. A connecting shaft 6 is fixedly connected to the upper surface of the upper grinding bucket 19, penetrating through the upper surface of the upper grinding bucket 19. A grinding block 7 is fixedly connected to one end of the connecting shaft 6. A feed pipe 8 is connected through the upper surface of the upper grinding bucket 19. A discharge pipe 9 is slidably connected to the lower surface of the lower frame 1. A drive motor 10 is fixedly installed in the middle of the upper surface of the upper grinding bucket 19. A replacement component is provided at the output end of the drive motor 10. The upper grinding bucket 19 and the lower grinding bucket 3 are combined to easily enclose the grinding block 7, thereby facilitating the effective grinding of the grinding block 7.

[0034] As attached Figure 5As shown, the replacement component includes a mounting box 11, which is fixedly connected to the output end of the drive motor 10. A fixed housing 12 is fixedly connected to one side of the mounting box 11. A bidirectional stud 13 is rotatably connected inside the fixed housing 12. A throttle 14 is fixedly connected to one end of the bidirectional stud 13. Two connecting frames 15 are threadedly connected to the outside of the bidirectional stud 13. A limit frame 16 is fixedly connected to the upper surface of the connecting frame 15. The outside of the bidirectional stud 13 is set with threads in opposite directions. The connecting frames 15 are convenient to connect with the limit frame 16 to drive it to move. The connecting frames 15 are slidably connected to the outside of the fixed housing 12.

[0035] As attached Figure 4 As shown, a mounting block 17 is fixedly connected to the upper surface of the connecting shaft 6. Limiting grooves 18 are respectively opened on both sides of the mounting block 17 to facilitate the insertion of one end of the limiting frame 16.

[0036] As attached Figure 2 As shown, an installation groove 20 is provided inside one side of the lower frame 1 for sliding the connecting rod 22.

[0037] As attached Figure 3 As shown, a limiting rod 21 is slidably connected inside the mounting groove 20. The limiting rod 21 is fixedly connected to the lower surface of the upper frame 5. A connecting rod 22 is fixedly connected to one side of the upper frame 5. Multiple toothed grooves 23 are provided on one side of the connecting rod 22. The limiting rod 21 improves the stability of the upper frame 5 when it moves, and the toothed grooves 23 facilitate connection with the gear 25.

[0038] As attached Figure 2 As shown, a stepper motor 24 is fixedly installed on one side of the lower frame 1. A gear 25 is fixedly connected to the output end of the stepper motor 24. The gear 25 is meshed with multiple tooth slots 23. An anti-blocking component is provided inside the discharge pipe 9. The anti-blocking component includes multiple arc-shaped rods 26. The multiple arc-shaped rods 26 are fixedly connected to the inner wall of the discharge pipe 9. An annular plate 27 is fixedly connected to the outside of the discharge pipe 9. Multiple outer shells 28 are fixedly connected to the upper surface of the annular plate 27. A connecting post 29 is slidably connected inside the outer shell 28. The arc-shaped rods 26 facilitate the reciprocating agitation of the material accumulated at the opening of the discharge pipe 9. The outer shell 28 facilitates the sliding of the connecting post 29.

[0039] As attached Figure 8 As shown, a spring 30 is fixedly connected to the upper surface of the outer shell 28, and the other end of the spring 30 is fixedly connected to the outer top of the connecting post 29. A drive motor 31 is fixedly installed on the lower surface of the lower frame 1. A protrusion 32 is fixedly connected to the output end of the drive motor 31. The drive motor 31 is located on one side of the discharge pipe 9. The spring 30 facilitates the provision of spring force for rebound, and the protrusion 32 facilitates the lifting of the annular plate 27 and its subsequent fall.

[0040] Working principle: When grinding ultrafine powder, the powder is first fed into the upper grinding hopper 19 inside the upper frame 5 through the feed pipe 8, so that it is in the gap between the grinding block 7 and the lower grinding hopper 3. Then, the drive motor 10 is turned on, and the output end of its internal gearbox is connected to the mounting box 11 and the mounting block 17 to drive the connecting shaft 6 to rotate. This causes the connecting shaft 6 to drive the grinding block 7 to rotate, thus grinding the powder. The ground powder is then guided by the guide shell 4 and flows out through the discharge pipe 9.

[0041] During material discharge, the drive motor 31 is turned on, and its output end drives the protrusion 32 to rotate. When the protruding part of the protrusion 32 lifts the annular plate 27, it will drive the discharge pipe 9 to slide in the middle of the lower surface of the lower frame 1. At the same time, when the outer shell 28 moves upward together, the connecting column 29 will slide inside the outer shell 28, and the outer shell 28 will squeeze the spring 30 on the upper surface. The spring 30 is squeezed and generates a rebound force. When the protruding part of the protrusion 32 moves away from the annular plate 27, the spring 30 releases the elastic force and pushes the annular plate 27, thereby causing the discharge pipe 9 to vibrate. When the discharge pipe 9 vibrates, it drives multiple arc rods 26 to reciprocate and poke inside the material, reducing the accumulation of material. With the action of the vibration of the discharge pipe 9, it is easier to discharge the material.

[0042] When it is necessary to disassemble the grinding block 7, first turn on the stepper motor 24, and use the output end of its internal gearbox to drive the gear 25 to rotate. Under the action of the tooth groove 23, the gear 25 can push the connecting rod 22 upward, so that the connecting rod 22 drives the upper frame 5 to move upward, separating the lower grinding bucket 3 from the upper grinding bucket 19, exposing the grinding block 7. Then turn the handle 14. When it drives the two bidirectional studs 13 with opposite threads to rotate, it will drive the two connecting frames 15 outside the bidirectional studs 13 to move away from each other, thereby driving the two limit frames 16 to move away from each other, so that one end of them is separated from the inside of the limit groove 18. Then catch the grinding block 7 that is about to fall by hand. When the mounting block 17 slides away from the inside of the mounting box 11 and the upper surface of the upper grinding bucket 19, the grinding block 7 falls off, making it easy to replace. The above operation is reversed during installation.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A grinding device for ultrafine powder coatings for building doors and windows, comprising a lower frame (1), characterized in that: The lower frame (1) is externally fixedly connected to multiple support feet (2). The lower frame (1) is internally fixedly connected to a lower grinding bucket (3) and a guide shell (4). The guide shell (4) is located below the lower grinding bucket (3). The upper surface of the lower frame (1) is provided with an upper frame (5). The upper frame (5) is internally fixedly connected to an upper grinding bucket (19). The upper surface of the upper grinding bucket (19) is fixedly connected to a connecting shaft (6). The connecting shaft (6) passes through the upper surface of the upper grinding bucket (19). One end of the connecting shaft (6) is fixedly connected to a grinding block (7). The upper surface of the upper grinding bucket (19) is connected through a feed pipe (8). The lower surface of the lower frame (1) is slidably connected to a discharge pipe (9). The upper surface of the upper grinding bucket (19) is fixedly installed with a drive motor (10). The output end of the drive motor (10) is provided with a replacement component.

2. The ultrafine powder coating grinding device for building doors and windows according to claim 1, characterized in that: The replacement component includes a mounting box (11), which is fixedly connected to the output end of the drive motor (10). A fixed shell (12) is fixedly connected to one side of the mounting box (11). A bidirectional stud (13) is rotatably connected inside the fixed shell (12). A throttle (14) is fixedly connected to one end of the bidirectional stud (13).

3. The ultrafine powder coating grinding device for building doors and windows according to claim 2, characterized in that: The external threaded connection of the bidirectional stud (13) has two connecting frames (15), the upper surface of the connecting frame (15) is fixedly connected to a limit bracket (16), and the upper surface of the connecting shaft (6) is fixedly connected to an mounting block (17), with limit grooves (18) respectively opened on both sides of the mounting block (17).

4. The ultrafine powder coating grinding device for building doors and windows according to claim 1, characterized in that: The lower frame (1) has an installation groove (20) inside one side, and a limit rod (21) is slidably connected inside the installation groove (20). The limit rod (21) is fixedly connected to the lower surface of the upper frame (5), and a connecting rod (22) is fixedly connected to one side of the upper frame (5).

5. The ultrafine powder coating grinding device for building doors and windows according to claim 4, characterized in that: The connecting rod (22) has multiple toothed grooves (23) on one side, and a stepper motor (24) is fixedly installed on one side of the lower frame (1). A gear (25) is fixedly connected to the output end of the stepper motor (24), and the gear (25) is meshed with the multiple toothed grooves (23).

6. The ultrafine powder coating grinding device for building doors and windows according to claim 1, characterized in that: The discharge pipe (9) is provided with an anti-blocking component inside. The anti-blocking component includes multiple arc rods (26). The multiple arc rods (26) are fixedly connected to the inner wall of the discharge pipe (9). The discharge pipe (9) is fixedly connected to an annular plate (27). The upper surface of the annular plate (27) is fixedly connected to multiple outer shells (28).

7. The ultrafine powder coating grinding device for building doors and windows according to claim 6, characterized in that: The inner surface of the outer shell (28) is slidably connected to a connecting column (29), and a spring (30) is fixedly connected to the upper surface of the outer shell (28). The other end of the spring (30) is fixedly connected to the outer top of the connecting column (29). A drive motor (31) is fixedly installed on the lower surface of the lower frame (1). A protrusion (32) is fixedly connected to the output end of the drive motor (31). The drive motor (31) is located on one side of the discharge pipe (9).

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