Rotary nozzle structure for powder spraying equipment

Abstract

The utility model relates to the technical field of powder spraying equipment, and discloses a rotary nozzle structure for powder spraying equipment, which comprises a mounting cylinder mounted on the spraying equipment, a powder discharging mechanism arranged inside and outside the mounting cylinder and used for discharging powder, and a nozzle connecting seat arranged outside the powder discharging mechanism, a powder outlet opening flaring pipe used for rotating powder spraying is installed outside the nozzle connecting base, an airflow guiding and adjusting mechanism used for guaranteeing powder outlet fluency is arranged in the nozzle connecting base, and powder spraying range adjusting mechanisms used for adjusting the powder diffusion range are arranged inside and outside the powder outlet mechanism. The angle of the flow guide plate can be dynamically adjusted to improve the powder discharging fluency, under the action of the pawl, the angle of the flow guide plate can be dynamically locked, powder discharging and spraying work can be conducted through the powder discharging mechanism, the rotary spraying effect can be achieved, and the powder diffusion area can be dynamically adjusted through the powder spraying range adjusting mechanism.

Description

TECHNICAL FIELD

[0001] The utility model relates to powder spraying equipment technical field, concretely relates to a kind of rotary nozzle structure for powder spraying equipment. BACKGROUND

[0002] Powder spraying equipment has the advantages of low environmental pollution degree, high utilization rate of powder coating, and is applied in various powder spraying work. The traditional powder spraying equipment is generally formed by powder outlet pipe, powder spraying nozzle, sheath, electrode needle and conducting ring. During operation, the powder is supplied to the powder outlet pipe through the cooperation of parts, and the powder is sprayed onto the product from the powder outlet pipe. However, the powder outlet pipe of the traditional powder spraying equipment is always in a stationary state, which causes the position of the powder spraying nozzle to be fixed, resulting in a small spraying area and difficulty in ensuring the uniformity of the sprayed product, which can easily cause over-spraying and edge burning on the product.

[0003] To solve the problems existing in the traditional powder spraying equipment, a rotary nozzle structure for powder spraying equipment (publication number: CN118023005A) is disclosed on the patent network. The existing device adds an inlet and outlet gas connector, a nozzle connecting seat and a powder spraying nozzle based on the traditional installation cylinder and electrode needle powder outlet assembly. The compressed gas flow drives the rear end of the powder spraying nozzle from the inlet and outlet gas connector, causing the powder spraying nozzle to rotate as a whole around its axis. The powder sprayed by the electrode needle powder outlet assembly under high pressure is then sprayed by the rotating powder spraying nozzle under high pressure, causing the powder to be uniformly dispersed due to centrifugal force, achieving a rotating spraying effect. However, in actual application, the guide vanes in the existing device are set at a fixed angle, making it difficult to adjust the angle of the guide vanes according to different powder weights, causing the powder to be easily stuck during spraying, which interferes with the spraying process. In addition, the distance between the diffusion screen and the open expansion pipe in the existing device is fixed. When the powder comes out of the powder spraying nozzle, the impact force received is fixed, resulting in a fixed spraying area. It is difficult to dynamically adjust the single spraying area according to different spraying requirements. Therefore, in view of the drawbacks of the existing device, we need to improve a rotary nozzle structure for powder spraying equipment to solve the above problems. SUMMARY

[0004] The utility model aims to provide a rotary nozzle structure for powder spraying equipment to solve the problems raised in the background technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rotary nozzle structure for a powder coating equipment, comprising an installation cylinder mounted on the coating equipment, a powder dispensing mechanism for dispensing powder being provided inside and outside the installation cylinder, a nozzle connecting seat being provided outside the powder dispensing mechanism, an open flared tube for rotating powder dispensing being fixedly installed outside the nozzle connecting seat, an airflow guiding and adjusting mechanism for ensuring smooth powder dispensing being provided inside the nozzle connecting seat, and a powder spraying range adjusting mechanism for adjusting the powder diffusion range being provided inside and outside the powder dispensing mechanism.

[0006] Preferably, the powder dispensing mechanism includes a powder dispensing sleeve disposed inside the mounting cylinder. An electrode powder dispensing needle is disposed outside the powder dispensing sleeve, and an air inlet / outlet connector is disposed outside the electrode powder dispensing needle. An air inlet is provided outside the air inlet / outlet connector, and a powder spraying pipe for supplying powder is disposed inside the air inlet / outlet connector. A powder spraying nozzle for dispensing powder is provided inside the powder spraying pipe, which facilitates powder dispensing and spraying operations and allows the powder spraying pipe to rotate to achieve a rotary spraying effect.

[0007] Preferably, the air inlet / outlet connector can control the amount of air entering and exiting the powder spraying pipe, which facilitates dynamic adjustment of the rotation speed of the powder spraying pipe.

[0008] Preferably, the airflow guiding and adjusting mechanism includes a connecting frame movably installed inside the nozzle connecting seat. A first gear is rotatably installed inside the connecting frame, and a guide plate is fixedly installed outside the first gear. A second gear is rotatably installed inside the connecting frame, and an annular connecting plate is fixedly installed outside the second gear. A ratchet disk is fixedly installed outside the annular connecting plate, and a pawl is fixedly installed outside the ratchet disk. A connecting plate is provided inside the annular connecting plate, and a pawl is rotatably installed outside the connecting plate. This allows for dynamic adjustment of the angle of the guide plate according to different powder weights and spraying requirements, thereby improving powder flow smoothness.

[0009] Preferably, the pawl engages with the ratchet disc, the second gear engages with the first gear, the connecting frame has a connecting groove for the guide plate to rotate, and the nozzle connecting seat has a through groove for the actuating disc to pass through, so as to facilitate dynamic locking of the position of the first gear.

[0010] Preferably, the powder spraying range adjustment mechanism includes a bearing fixedly installed outside the powder spraying pipe, an inner spiral groove is opened inside the powder spraying pipe, an adjusting screw is provided inside the powder spraying pipe, and a diffusion screen is fixedly installed outside the adjusting screw. The distance between the diffusion screen and the powder outlet flare pipe can be adjusted according to different spraying requirements, so as to dynamically adjust the powder diffusion area.

[0011] Preferably, the adjusting screw is threaded into the inner spiral groove, which facilitates rapid adjustment of the position of the diffuser screen, and the bearing is rotatably installed inside the nozzle connector, which enables stable rotary spraying.

[0012] Compared with the prior art, this utility model provides a rotary nozzle structure for powder coating equipment, which has the following characteristics:

[0013] Beneficial effects:

[0014] 1. The rotary nozzle structure used in this powder coating equipment has an airflow guiding and adjusting mechanism in the nozzle connector to ensure smooth powder output. During use, the angle of the guide plate can be dynamically adjusted according to the different weights of powder and the coating requirements to improve the smoothness of powder output. Under the action of the pawl, the angle of the guide plate can be dynamically locked when the required angle is reached.

[0015] 2. The rotary nozzle structure used in this powder coating equipment has powder dispensing mechanisms set inside and outside the mounting cylinder. During use, it can perform powder dispensing and spraying operations, and can rotate the powder spraying pipe to achieve a rotary spraying effect. Through the powder spraying range adjustment mechanism, the distance between the diffusion screen and the powder dispensing open flare pipe can be adjusted according to different spraying requirements, so as to dynamically adjust the powder diffusion area. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the rotary nozzle used in this powder coating equipment. Figure One .

[0017] Figure 2 This is a three-dimensional structural diagram of the rotary nozzle used in this powder coating equipment. Figure Two .

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the airflow guiding and adjusting mechanism in the rotary nozzle structure used in this powder coating equipment. Figure One .

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the airflow guiding and adjusting mechanism in the rotary nozzle structure used in this powder coating equipment. Figure Two .

[0020] Figure 5 This is a three-dimensional structural diagram of the powder spraying range adjustment mechanism in the rotary nozzle structure used in this powder coating equipment.

[0021] In the diagram: 1. Mounting cylinder; 2. Powder dispensing mechanism; 21. Powder dispensing sleeve; 22. Electrode powder dispensing needle; 23. Air inlet / outlet connector; 24. Air inlet; 25. Powder spraying pipe; 26. Powder spraying nozzle; 31. Nozzle connector; 32. Powder dispensing open flared pipe; 4. Airflow guiding and adjusting mechanism; 401. Connecting frame; 402. First gear; 403. Guide plate; 404. Second gear; 405. Annular connecting plate; 406. Ratchet; 407. Actuating disc; 408. Connecting disc; 409. Pawl; 5. Powder spraying range adjusting mechanism; 51. Bearing; 52. Inner spiral groove; 53. Adjusting screw; 54. Diffuser screen. Detailed Implementation

[0022] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0023] Example 1: Please refer to Figures 1-4 This utility model provides a technical solution: a rotary nozzle structure for powder coating equipment, including an installation cylinder 1 installed on the coating equipment, a powder dispensing mechanism 2 for dispensing powder is provided inside and outside the installation cylinder 1, a nozzle connecting seat 31 is provided outside the powder dispensing mechanism 2, an open flared pipe 32 for rotary powder dispensing is fixedly installed outside the nozzle connecting seat 31, an airflow guiding adjustment mechanism 4 is provided inside the nozzle connecting seat 31 to ensure the smoothness of powder dispensing, and a powder spraying range adjustment mechanism 5 is provided inside and outside the powder dispensing mechanism 2 to adjust the powder diffusion range.

[0024] Furthermore, the powder dispensing mechanism 2 includes a powder dispensing sleeve 21, which is installed inside the mounting cylinder 1. An electrode powder dispensing needle 22 is installed outside the powder dispensing sleeve 21. An air inlet / outlet connector 23 is installed outside the electrode powder dispensing needle 22. An air inlet 24 is opened outside the air inlet / outlet connector 23. A powder spraying pipe 25 for supplying powder is installed inside the air inlet / outlet connector 23. A powder spraying nozzle 26 for dispensing powder is opened inside the powder spraying pipe 25, which facilitates the powder dispensing and spraying operation and allows the powder spraying pipe 25 to rotate to achieve a rotary spraying effect.

[0025] Furthermore, the air inlet / outlet connector 23 can control the air volume inside the powder spraying pipe 25, which facilitates dynamic adjustment of the rotation speed of the powder spraying pipe 25.

[0026] Furthermore, the airflow guiding adjustment mechanism 4 includes a connecting frame 401 movably installed inside the nozzle connecting seat 31. A first gear 402 is rotatably installed inside the connecting frame 401. A guide plate 403 is fixedly installed outside the first gear 402. A second gear 404 is rotatably installed inside the connecting frame 401. An annular connecting plate 405 is fixedly installed outside the second gear 404. A ratchet disk 406 is fixedly installed outside the annular connecting plate 405. A pawl 407 is fixedly installed outside the ratchet disk 406. A connecting disk 408 is provided inside the annular connecting plate 405. A pawl 409 is rotatably installed outside the connecting disk 408. This allows for dynamic adjustment of the angle of the guide plate 403 according to different powder weights and spraying requirements, thereby improving the smoothness of powder dispensing.

[0027] Furthermore, the pawl 409 meshes with the ratchet disc 406, the second gear 404 meshes with the first gear 402, the connecting frame 401 has a connecting groove for the guide plate 403 to rotate, and the nozzle connecting seat 31 has a through groove for the actuating disc 407 to pass through, so as to dynamically lock the position of the first gear 402.

[0028] Example 2: Please refer to Figure 5 Furthermore, in conjunction with Embodiment 1, it is further found that the powder spraying range adjustment mechanism 5 includes a bearing 51 fixedly installed outside the powder spraying pipe 25, an inner spiral groove 52 is opened inside the powder spraying pipe 25, an adjusting screw 53 is provided inside the powder spraying pipe 25, and a diffusion screen 54 is fixedly installed outside the adjusting screw 53. The distance between the diffusion screen 54 and the powder outlet flared pipe 32 can be adjusted according to different spraying requirements, so as to dynamically adjust the area of ​​powder diffusion.

[0029] Furthermore, the adjusting screw 53 is threadedly installed with the inner spiral groove 52, which facilitates rapid adjustment of the position of the diffuser screen 54. The bearing 51 is rotatedly installed inside the nozzle connecting seat 31, which can achieve stable rotary spraying.

[0030] In actual operation, the mounting cylinder 1 can first be connected to the spraying equipment to be used. After connection, the pressure and flow rate of the compressed air can be controlled through the inlet / outlet connector 23. The gas enters the powder spraying pipe 25 from the inlet 24, generating airflow that drives the guide plate 403 to rotate. Under the action of the bearing 51, the powder spraying pipe 25 rotates. Under the action of the powder outlet sleeve 21 and the electrode powder outlet needle 22, the powder is sprayed out. Through rotation, centrifugal force is generated. After the powder is sprayed out, it contacts the diffuser screen 54 to form a diffusion surface and is evenly sprayed onto the product. When it is necessary to increase or decrease the single spraying area, the diffuser screen 54 can be rotated to rotate the adjusting screw 53. Under the action of the inner spiral groove 52 inside the powder spraying pipe 25, the distance between the diffuser screen 54 and the powder outlet open flare pipe 32 can be changed, thereby changing the spraying area. The impact force between the generated powder and the diffuser screen 54 changes the spray range. In addition, the angle of the guide plate 403 can be adjusted according to the powder weight. Rotating the actuating disk 407 causes the ratchet disk 406 to rotate. Under the action of the annular connecting plate 405, the second gear 404 can rotate, thereby rotating the first gear 402 meshing with the second gear 404, thus changing the angle of the guide plate 403 to adjust the airflow direction and improve the smoothness of powder output. After adjustment, the actuating disk 407 is released. Under the action of the pawl 409, the position of the ratchet disk 406 can be ensured not to change arbitrarily, thereby dynamically locking the angle of the guide plate 403 to achieve a stable rotary spraying effect of powder and avoid the problem of poor spraying effect caused by too small or too large centrifugal force during the spraying process.

[0031] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A rotary nozzle structure for a powder coating equipment, comprising a mounting cylinder (1) installed on the coating equipment, characterized in that: The mounting cylinder (1) is provided with a powder dispensing mechanism (2) for dispensing powder inside and outside. A nozzle connecting seat (31) is provided outside the powder dispensing mechanism (2). A powder dispensing open flared pipe (32) for rotating powder spraying is fixedly installed outside the nozzle connecting seat (31). An airflow guiding adjustment mechanism (4) to ensure the smoothness of powder dispensing is provided inside the nozzle connecting seat (31). A powder spraying range adjustment mechanism (5) to adjust the powder diffusion range is provided inside and outside the powder dispensing mechanism (2).

2. The rotary nozzle structure for a powder coating equipment according to claim 1, characterized in that: The powder dispensing mechanism (2) includes a powder dispensing sleeve (21), which is located inside the mounting cylinder (1). An electrode powder dispensing needle (22) is provided outside the powder dispensing sleeve (21). An air inlet / outlet connector (23) is provided outside the electrode powder dispensing needle (22). An air inlet (24) is provided outside the air inlet / outlet connector (23). A powder spraying pipe (25) for supplying powder is provided inside the air inlet / outlet connector (23). A powder spraying nozzle (26) for dispensing powder is provided inside the powder spraying pipe (25).

3. The rotary nozzle structure for a powder coating equipment according to claim 2, characterized in that: The air inlet / outlet connector (23) can control the amount of air entering and exiting the powder spraying pipe (25).

4. The rotary nozzle structure for a powder coating equipment according to claim 1, characterized in that: The airflow guiding and adjusting mechanism (4) includes a connecting frame (401) movably installed inside the nozzle connecting seat (31). A first gear (402) is rotatably installed inside the connecting frame (401). A guide plate (403) is fixedly installed outside the first gear (402). A second gear (404) is rotatably installed inside the connecting frame (401). An annular connecting plate (405) is fixedly installed outside the second gear (404). A ratchet disc (406) is fixedly installed outside the annular connecting plate (405). A pawl (407) is fixedly installed outside the ratchet disc (406). A connecting plate (408) is provided inside the annular connecting plate (405). A pawl (409) is rotatably installed outside the connecting plate (408).

5. The rotary nozzle structure for a powder coating equipment according to claim 4, characterized in that: The pawl (409) meshes with the ratchet disc (406), the second gear (404) meshes with the first gear (402), the connecting frame (401) has a connecting groove for the guide plate (403) to rotate, and the nozzle connecting seat (31) has a through groove for the actuating disc (407) to pass through.

6. The rotary nozzle structure for a powder coating equipment according to claim 2, characterized in that: The powder spraying range adjustment mechanism (5) includes a bearing (51) fixedly installed outside the powder spraying pipe (25), an inner spiral groove (52) is opened inside the powder spraying pipe (25), an adjustment screw (53) is provided inside the powder spraying pipe (25), and a diffuser screen (54) is fixedly installed outside the adjustment screw (53).

7. The rotary nozzle structure for a powder coating equipment according to claim 6, characterized in that: The adjusting screw (53) is threadedly installed with the inner spiral groove (52), and the bearing (51) is rotatably installed inside the nozzle connecting seat (31).

Images