Low-noise powder coating airflow pulverizer
By introducing vibration damping, feeding, and support devices into the air jet mill, the problems of equipment shaking and noise have been solved, continuous feeding and impurity filtration have been achieved, and the operational stability and practicality of the equipment have been improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-03-31
AI Technical Summary
Existing airflow mills suffer from high-frequency vibration and noise issues during operation, which affect the operating environment.
By employing shock-absorbing devices, feeding devices, support devices, and auxiliary devices, continuous feeding and impurity filtration are achieved by reducing equipment vibration and friction noise, thereby reducing clogging.
It effectively reduces equipment noise, improves operational stability and practicality, and reduces labor intensity and material feeding frequency.
Smart Images

Figure CN224057559U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of airflow mills, and in particular to a low-noise airflow mill for powder coatings. Background Technology
[0002] Currently, airflow mills are used for processing ultrafine powders of fibrous and non-fibrous materials in industries such as chemical, pharmaceutical, food additives, pesticides, coatings, dyes, electronic materials, energy, and non-metallic minerals. Among them, the jet device is a key component used to crush materials. The jet device includes a grinding chamber, on which multiple airflow nozzles are installed in a ring. Several nozzles are evenly distributed and fixed on the wall of the grinding chamber. Compressed air enters the spherical compression chamber of the nozzle to form high pressure, and high-pressure airflow is ejected from the outlet. The high-pressure airflow is directed at the material in the crushing chamber to crush the material.
[0003] The existing Chinese utility model patent with application number CN202222033697.5 relates to an airflow mill for processing permanent magnets that avoids powder agglomeration, including a shell, a feeding pipe, a feed pipe, an air intake manifold, a return pipe, a powder filter, a drive fan, a pusher plate, and rollers, which can prevent agglomeration.
[0004] However, the aforementioned device itself will vibrate at high frequency during actual use, generating a lot of noise and affecting the operating environment. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a low-noise powder coating airflow mill that reduces noise caused by equipment vibration and friction through a vibration damping device, performs continuous feeding operations in conjunction with the equipment through a feeding device, provides support for the feeding device through a support device and reduces the possibility of clogging of the feeding device itself, and reduces impurities in the feeding airflow through an auxiliary device, thereby improving the practicality of the device.
[0006] This utility model discloses a low-noise powder coating airflow mill, comprising a vibration damping device, a feeding device, a support device, and an auxiliary device. The feeding device is mounted on the vibration damping device, the support device is mounted on the vibration damping device, and the auxiliary device is mounted on the feeding device. The vibration damping device reduces noise caused by the vibration and friction of the equipment itself. The feeding device works in conjunction with the equipment to perform continuous feeding operations. The support device provides support for the feeding device and reduces the possibility of blockage. The auxiliary device reduces impurities in the feeding airflow, thus improving the practicality of the device.
[0007] Preferably, the vibration damping device includes a base plate, a fixing groove, a rubber seat, and a support frame. The fixing groove is installed on the upper surface of the base plate, and the rubber seat is installed in the fixing groove. The bottom of the support frame is placed in the rubber seat, and the bottom of the support frame is fastened to the fixing groove by bolts. The rubber seat reduces the noise generated by friction between the support frame and the fixing groove during vibration, and at the same time fixes the bottom of the support frame, reducing the displacement caused by the vibration of the equipment itself during operation, thus improving the practicality and stability of the device.
[0008] Preferably, the feeding device includes a grinding chamber, a top cover, a feed pipe, a storage bin, and a feeding hopper. The grinding chamber is located on the upper part of the support frame, and the top cover is connected to the upper part of the grinding chamber. The feed pipe is inclinedly connected to the upper surface of the top cover. The storage bin is located above the feed pipe, and the feeding hopper is located at the lower part of the storage bin. The output end of the feeding hopper is connected to the inside of the feed pipe through a hose. The storage bin stores the material, and the feeding hopper at the bottom of the storage bin reduces the material residue in the lower edge corners of the storage bin when the material is emptied. High-velocity gas is introduced into the feed pipe to carry the material into the grinding chamber. The storage bin enables the equipment to have a uniform and continuous feeding capability, reduces the frequency of feeding by operators, reduces the labor intensity during the feeding process, and improves the practicality of the device.
[0009] Preferably, the support device includes a bracket, a vibrating motor, a connecting block, and a connecting slot. The bracket is installed on the upper surface of the base plate, the vibrating motor is installed on the upper side of the bracket, the connecting block is provided on the front surface of the bracket, and the connecting slot is provided on the side of the storage bin. The connecting block and the connecting slot allow the filter sleeve to be quickly fixed on the bracket, facilitating the replacement of the storage bin by the operator. By turning on the vibrating motor, power is transmitted to the storage bin to drive the storage bin to vibrate, thereby ensuring that the material in the storage bin falls evenly, reducing material blockage, and improving the practicality of the device.
[0010] Preferably, the auxiliary device includes a filter chamber, a sound-insulating cotton sleeve, a limiting ring, a vibration-damping rubber ring, a filter sleeve, and a filter screen. The filter chamber is connected to the input end of the feed pipe. The sound-insulating cotton sleeve is adhered to the inner side of the filter chamber. A set of limiting rings is respectively set on the upper and lower end faces of the filter chamber. The filter sleeve is located inside the filter chamber, and a set of vibration-damping rubber rings is placed between the upper and lower end faces of the filter sleeve and the upper and lower end faces of the filter chamber. A filter screen is installed inside the filter sleeve. The filter screen filters impurities in the airflow, reducing the entry of large-diameter particles into the sound-insulating cotton sleeve and reducing damage to the inside of the sound-insulating cotton sleeve. The sound-insulating cotton sleeve reduces the impact of noise inside the filter chamber on the outside environment. The two sets of vibration-damping rubber rings reduce the noise generated by the shaking of the filter sleeve itself. The limiting ring limits the position of the filter sleeve, improving the practicality of the device.
[0011] Preferably, it also includes a sealing cover. A feeding port is provided on the upper surface of the storage silo, and a sealing cover is installed on the feeding port. The sealing cover seals the inside of the storage silo, reducing the overflow of smoke and dust inside the storage silo and improving the practicality of the device.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: the vibration damping device reduces the noise caused by the vibration and friction of the equipment itself; the feeding device cooperates with the equipment to carry out continuous feeding operations; the support device provides support for the feeding device and reduces the possibility of clogging of the feeding device itself; and the auxiliary device reduces impurities in the feeding airflow, thereby improving the practicality of the device. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the first isometric structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the second isometric structure of this utility model;
[0015] Figure 3 This is an exploded structural diagram of the present invention;
[0016] Figure 4 This is a cross-sectional structural schematic diagram of the present invention;
[0017] Figure 5 This is a partially enlarged structural schematic diagram of the present invention;
[0018] The following are labeled in the attached diagram: 1. Base plate; 2. Fixing groove; 3. Rubber seat; 4. Support frame; 5. Grinding chamber; 6. Top cover; 7. Feed pipe; 8. Storage silo; 9. Discharge hopper; 10. Bracket; 11. Vibration motor; 12. Connecting block; 13. Connecting slot; 14. Filter chamber; 15. Sound insulation cotton sleeve; 16. Limiting ring; 17. Shock-absorbing rubber ring; 18. Filter sleeve; 19. Filter screen; 20. Sealing cover. Detailed Implementation
[0019] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1
[0020] Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the feeding device is mounted on the shock absorption device, the support device is mounted on the shock absorption device, and the auxiliary device is mounted on the feeding device;
[0021] First, the material is added into the storage bin 8. Then, the storage bin 8 is fixed to the upper part of the bracket 10 by connecting the connecting block 12 and the connecting slot 13. Then, the output end of the hopper 9 is connected to the feed pipe 7 by the hose. Then, the vibration motor 11 is turned on to transmit power to the storage bin 8 to drive the storage bin 8 to vibrate. The gas input into the feed pipe 7 is filtered by the filter screen 19. Then, the airflow sends the material into the grinding chamber 5 for processing.
[0022] The shock absorption device includes a base plate 1, a fixing groove 2, a rubber seat 3, and a support frame 4. The fixing groove 2 is installed on the upper surface of the base plate 1, and the rubber seat 3 is installed in the fixing groove 2. The bottom of the support frame 4 is placed in the rubber seat 3, and the bottom of the support frame 4 is fastened to the fixing groove 2 by bolts.
[0023] The feeding device includes a grinding chamber 5, a top cover 6, a feed pipe 7, a storage bin 8, and a feeding hopper 9. The grinding chamber 5 is located on the upper part of the support frame 4. The top cover 6 is connected to the upper part of the grinding chamber 5. The feed pipe 7 is inclinedly connected to the upper surface of the top cover 6. The storage bin 8 is located on the upper side of the feed pipe 7. The feeding hopper 9 is located at the lower part of the storage bin 8. The output end of the feeding hopper 9 is connected to the inside of the feed pipe 7 through a flexible hose.
[0024] The support device includes a bracket 10, a vibrating motor 11, a connecting block 12, and a connecting slot 13. The bracket 10 is installed on the upper surface of the base plate 1, the vibrating motor 11 is installed on the upper side of the bracket 10, the connecting block 12 is provided on the front surface of the bracket 10, and the connecting slot 13 is provided on the side of the storage bin 8.
[0025] The auxiliary device includes a filter chamber 14, a sound insulation cotton sleeve 15, a limiting ring 16, a shock-absorbing rubber ring 17, a filter sleeve 18, and a filter screen 19. The filter chamber 14 is connected to the input end of the feed pipe 7. The sound insulation cotton sleeve 15 is adhered to the inner side of the filter chamber 14. A set of limiting rings 16 are respectively provided on the upper and lower end faces of the filter chamber 14. The filter sleeve 18 is located inside the filter chamber 14, and a set of shock-absorbing rubber rings 17 are respectively placed between the upper and lower end faces of the filter sleeve 18 and the upper and lower end faces of the filter chamber 14. A filter screen 19 is provided inside the filter sleeve 18.
[0026] It also includes a sealing cover 20, and a feeding port is provided on the upper surface of the storage bin 8, with a sealing cover 20 installed on the feeding port;
[0027] The device reduces noise caused by vibration and friction of the equipment itself by using a shock-absorbing device, enables continuous feeding operations by using a feeding device, provides support for the feeding device and reduces the possibility of blockage by the feeding device itself, and reduces impurities in the feeding airflow by using an auxiliary device, thus improving the practicality of the device.
[0028] like Figures 1 to 5As shown, this utility model discloses a low-noise powder coating airflow mill. During operation, the material is first added into the storage silo 8. Then, the storage silo 8 is fixed to the upper part of the support 10 by the connecting block 12 and the connecting groove 13. Then, the output end of the feed hopper 9 is connected to the feed pipe 7 through the hose. Then, the vibration motor 11 is turned on to transmit power to the storage silo 8 to drive the storage silo 8 to vibrate. The gas input into the feed pipe 7 is filtered by the filter screen 19. Then, the airflow sends the material into the grinding chamber 5 for processing.
[0029] The vibration motor 11 of the low-noise powder coating airflow mill of this utility model is purchased from the market. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.
[0030] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A low noise powder coating air jet mill; characterized in that, Including damping device, blanking device, supporting device and auxiliary device, blanking device is installed on damping device, supporting device is installed on damping device, auxiliary device is installed on blanking device.
2. A low noise powder coating air jet mill as claimed in claim 1, characterised in that, The damping device comprises a bottom plate (1), a fixed groove (2), a rubber seat (3) and a support frame (4), the fixed groove (2) is installed on the upper end face of the bottom plate (1), the rubber seat (3) is arranged in the fixed groove (2), the bottom of the support frame (4) is placed in the rubber seat (3), and the bottom of the support frame (4) is tightly connected with the fixed groove (2) through bolts.
3. A low noise powder coating air jet mill as claimed in claim 2, characterised in that, The blanking device comprises a grinding chamber (5), a top cover (6), a feeding pipe (7), a storage bin (8) and a blanking hopper (9), the upper part of the support frame (4) is provided with the grinding chamber (5), the upper part of the grinding chamber (5) is connected with the top cover (6), the upper end face of the top cover (6) is connected with the feeding pipe (7) in a slope manner, the storage bin (8) is located on the upper side of the feeding pipe (7), the lower part of the storage bin (8) is provided with the blanking hopper (9), and the output end of the blanking hopper (9) is connected with the inside of the feeding pipe (7) through a hose.
4. A low noise powder coating air jet mill as claimed in claim 3, characterised in that, The supporting device comprises a bracket (10), a vibration motor (11), a connecting clamping block (12) and a connecting clamping groove (13), the upper end face of the bottom plate (1) is installed with the bracket (10), the upper part of the side face of the bracket (10) is installed with the vibration motor (11), the front end face of the bracket (10) is provided with the connecting clamping block (12), and the side face of the storage bin (8) is provided with the connecting clamping groove (13).
5. A low noise powder coating air jet mill as claimed in claim 4, characterised in that, The auxiliary device comprises a filter bin (14), a sound insulation cotton sleeve (15), a limiting ring (16), a damping rubber ring (17), a filter sleeve (18) and a filter screen (19), the input end of the feeding pipe (7) is connected with the filter bin (14), the inner side face of the filter bin (14) is attached with the sound insulation cotton sleeve (15), a group of limiting rings (16) are arranged on the upper and lower end faces of the filter bin (14) respectively, the filter sleeve (18) is located in the filter bin (14) and a group of damping rubber rings (17) are respectively arranged between the upper and lower end faces of the filter sleeve (18) and the upper and lower end faces of the filter bin (14), and the filter sleeve (18) is provided with the filter screen (19).
6. A low noise powder coating air jet mill as claimed in claim 5, characterised in that, It also comprises a sealing cover (20), the upper end face of the storage bin (8) is provided with a feeding opening, and the feeding opening is installed with the sealing cover (20).
Citation Information
Patent Citations
Permanent magnet processing jet mill capable of avoiding powder agglomeration
CN218502265U