Trace spraying device for automobile accessory release agent

Abstract

The utility model relates to the technical field of spraying, in particular to a trace release agent spraying device for automobile accessories. According to the technical scheme, the device comprises a fixing ring, a rotating pipe is rotationally installed in the fixing ring, a Laval pipe is fixedly connected to the bottom end of the rotating pipe, a rotating air pipe is fixedly installed in the rotating pipe, turbine blades are fixedly installed in the rotating air pipe, and an air nozzle is fixedly connected to the bottom end of the rotating air pipe; the air nozzle is located in the Laval pipe, an annular flow channel is formed between the outer surface of the air nozzle and the inner wall of the Laval pipe, a baffle is fixedly installed at the position, close to the bottom end, in the Laval pipe, and the top end of the rotating air pipe is rotationally connected with an air inlet pipe through a rotating connector. According to the mold release agent spraying device, a trace amount of mold release agent can be quickly and uniformly sprayed on the surface of an automobile part mold, the use amount of the mold release agent is reduced, the production cost and the sewage amount are reduced, and meanwhile the spraying efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of spraying technology, specifically to a micro-spraying device for mold release agent of automotive parts. Background Technology

[0002] The application of mold release agent to automotive parts is a crucial step in the production process. As a functional additive, the mold release agent forms a release film between the mold and the molded automotive parts after being sprayed onto the mold surface. This release film has extremely low surface tension, which can effectively reduce the adhesion between the parts and the mold, thereby ensuring the production quality and efficiency of automotive parts.

[0003] Currently, when spraying release agents for automotive parts, the release agent is not evenly distributed on the mold surface after spraying, requiring repeated spraying, which results in a large amount of release agent used, thus increasing production costs and wastewater, and also reducing spraying efficiency. To address this, we propose a micro-spraying device for automotive parts release agents. Utility Model Content

[0004] The purpose of this invention is to provide a micro-spraying device for mold release agent of automotive parts, which can quickly and evenly spray a small amount of mold release agent onto the surface of automotive parts molds, reducing the amount of mold release agent used, lowering production costs and wastewater volume, and improving spraying efficiency. It solves the problem that in current automotive parts mold release agent spraying, the mold release agent is not evenly distributed on the mold surface after spraying, requiring repeated spraying, resulting in a large amount of mold release agent used, which in turn increases production costs and wastewater, and has low spraying efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a micro-spraying device for mold release agent of automotive parts, comprising a fixed ring, a rotating tube rotatably installed inside the fixed ring, a Laval tube fixedly connected to the bottom end of the rotating tube, a rotating air pipe fixedly installed inside the rotating tube, a turbine blade fixedly installed inside the rotating air pipe, an air nozzle fixedly connected to the bottom end of the rotating air pipe, the air nozzle being located inside the Laval tube, and an annular flow channel being formed between the outer surface of the air nozzle and the inner wall of the Laval tube, a baffle fixedly installed near the bottom end inside the Laval tube, an air inlet pipe rotatably connected to the top end of the rotating air pipe via a rotary joint, a plurality of connecting holes being evenly spaced in an annular array on the outer surface of the rotating tube at the fixed ring position, and a liquid inlet pipe fixedly connected to the outer surface of the fixed ring.

[0006] Preferably, a base plate is fixedly installed on the upper surface of the fixing ring, and the rotating air pipe passes through the base plate. A column is fixedly connected to the upper surface of the base plate near the four corners, and a top plate is fixedly connected to the end of the column.

[0007] Preferably, a mounting plate is fixedly installed at the middle position of the upper surface of the top plate, and mounting holes are provided at the four corner positions of the upper surface of the mounting plate.

[0008] Preferably, a first annular sealing groove is provided on the outer surface of the rotating air tube at a position above the rotating tube, and a first sealing ring is provided inside the first annular sealing groove. A first annular sealing protrusion is provided on the inner wall of the fixed ring near the upper surface, and the first annular sealing protrusion is located inside the first annular sealing groove.

[0009] Preferably, the outer surface of the rotating tube is provided with a second annular sealing groove at positions above and below the connecting hole, and a second sealing ring is provided inside each of the two second annular sealing grooves. The inner wall of the fixed ring is provided with two second annular sealing protrusions, and the two second annular sealing protrusions are respectively located inside the two second annular sealing grooves.

[0010] Preferably, an annular groove is provided on the outer surface of the rotating tube at the location of the connecting hole.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This invention, by incorporating a Laval tube, a rotating tube, a fixed ring, a liquid inlet tube, an air inlet tube, a rotary joint, a rotating air pipe, an annular flow channel, a connecting hole, a jet nozzle, turbine blades, and a baffle, achieves the effect of rapidly and evenly spraying a small amount of release agent onto the surface of automotive parts molds. This reduces the amount of release agent used, lowers production costs and wastewater volume, and also improves spraying efficiency. Compressed gas enters the rotating air pipe through the air inlet tube and drives the turbine blades to rotate as it flows inside the rotating air pipe, thereby driving the rotating air pipe and the rotating tube to rotate. The compressed gas is ejected from the jet nozzle, while the release agent enters the annular flow channel through the liquid inlet tube and the connecting hole. Inside the Laval tube, it merges with the compressed air and impacts the baffle to form release agent atomized particles, which are then evenly and rapidly sprayed onto the surface of the automotive parts mold.

[0013] This invention achieves the effect of facilitating the rotation of the rotating air pipe while sealing the gap between the rotating air pipe and the rotating tube by setting a first annular sealing groove, a first annular sealing protrusion, and a first sealing ring. The rotating air pipe rotates through the first annular sealing groove and the first annular sealing protrusion, while the first sealing ring plays a sealing role to prevent the release agent inside the annular flow channel from flowing out from the gap between the rotating air pipe and the rotating tube.

[0014] This invention achieves the effect of facilitating the rotation of the rotating tube while sealing the gap between the rotating tube and the fixed ring by setting a second annular sealing groove, a second annular sealing protrusion, and a second sealing ring. The rotating tube rotates through the second annular sealing groove and the second annular sealing protrusion, while the second sealing ring acts as a seal to prevent the release agent inside the annular groove from flowing out from the gap between the rotating tube and the fixed ring. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a partial three-dimensional sectional view of the fixing ring of this utility model;

[0017] Figure 3 This utility model Figure 2 A magnified structural diagram of A in the middle;

[0018] Figure 4 This is a schematic diagram of the main structure of this utility model.

[0019] Reference numerals: 1. Laval tube; 2. Rotating tube; 3. Fixing ring; 4. Liquid inlet tube; 5. Air inlet tube; 6. Rotary joint; 7. Top plate; 8. Mounting plate; 9. Column; 10. Base plate; 11. Turbine blade; 12. Rotating air tube; 13. Annular flow channel; 14. Jet nozzle; 15. Baffle; 16. First annular sealing groove; 17. First sealing ring; 18. First annular sealing protrusion; 19. Annular groove; 20. Connecting hole; 21. Second sealing ring; 22. Second annular sealing protrusion; 23. Second annular sealing groove. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. Example 1

[0021] like Figures 1-4 As shown, the present invention proposes a micro-spraying device for mold release agent of automotive parts, including a fixed ring 3, a rotating tube 2 rotatably installed inside the fixed ring 3, with the top end of the rotating tube 2 located inside the fixed ring 3 and the bottom end located outside the fixed ring 3. A Laval tube 1 is fixedly connected to the bottom end of the rotating tube 2. A rotating air pipe 12 is fixedly installed inside the rotating tube 2. The rotating air pipe 12 and the rotating tube 2 are fixedly connected by threads, which facilitates the disassembly and assembly of the rotating air pipe 12 and the rotating tube 2. A turbine blade 11 is fixedly installed inside the rotating air pipe 12. A jet nozzle 14 is fixedly connected to the bottom end of the rotating air pipe 12. The jet nozzle 14 is located inside the Laval tube 1, and an annular flow channel 13 is formed between the outer surface of the jet nozzle 14 and the inner wall of the Laval tube 1.

[0022] A baffle 15 is fixedly installed inside the Laval tube 1 near the bottom. The top of the rotating air pipe 12 is rotatably connected to the air inlet pipe 5 through the rotary joint 6. Compressed gas enters the interior of the rotating air pipe 12 through the air inlet pipe 5 and the rotary joint 6. Several connecting holes 20 are evenly spaced in a ring array on the outer surface of the rotating pipe 2 at the position of the fixed ring 3. An annular groove 19 is provided on the outer surface of the rotating pipe 2 at the position of the connecting hole 20. The release agent enters the interior of the annular groove 19 through the liquid inlet pipe 4. After flowing inside the annular groove 19, it enters the interior of the annular flow channel 13 evenly through each connecting hole 20. The liquid inlet pipe 4 is fixedly connected to the outer surface of the fixed ring 3. A base plate 10 is fixedly installed on the upper surface of the fixed ring 3, and the rotating air pipe 12 passes through the base plate 10. Columns 9 are fixedly connected to the upper surface of the base plate 10 near the four corners, and a top plate 7 is fixedly connected to the end of each column 9. An installation plate 8 is fixedly installed in the middle of the upper surface of the top plate 7, and installation holes are provided on the upper surface of the installation plate 8 near the four corners.

[0023] In use, compressed gas enters the rotating air pipe 12 through the inlet pipe 5 and drives the turbine blades 11 to rotate as it flows inside the rotating air pipe 12. This, in turn, drives the rotating air pipe 12 and the rotating pipe 2 to rotate. The compressed gas is ejected from the nozzle 14, while the release agent enters the annular flow channel 13 through the liquid inlet pipe 4 and the connecting hole 20. Inside the Laval pipe 1, the release agent merges with the compressed air and impacts the baffle 15 to form atomized release agent particles. These particles are then evenly and quickly sprayed onto the surface of the automotive parts mold, reducing the amount of release agent used, lowering production costs and wastewater volume, and improving spraying efficiency. Example 2

[0024] like Figures 1-3 As shown, the present invention proposes a micro-spraying device for mold release agent of automotive parts. Compared with Embodiment 1, this embodiment further includes a first annular sealing groove 16 provided on the outer surface of the rotating air pipe 12 above the rotating pipe 2, and a first sealing ring 17 provided inside the first annular sealing groove 16. A first annular sealing protrusion 18 is provided on the inner wall of the fixing ring 3 near the upper surface, and the first annular sealing protrusion 18 is located inside the first annular sealing groove 16. A second annular sealing groove 23 is provided on the outer surface of the rotating pipe 2 above and below the connecting hole 20, and a second sealing ring 21 is provided inside both of the two second annular sealing grooves 23. Two second annular sealing protrusions 22 are provided on the inner wall of the fixing ring 3, and the two second annular sealing protrusions 22 are respectively located inside the two second annular sealing grooves 23.

[0025] In this embodiment, the rotating air pipe 12 rotates through the first annular sealing groove 16 and the first annular sealing protrusion 18, while the first sealing ring 17 plays a sealing role to prevent the release agent inside the annular flow channel 13 from flowing out from the gap between the rotating air pipe 12 and the rotating pipe 2. The rotating pipe 2 rotates through the second annular sealing groove 23 and the second annular sealing protrusion 22, while the second sealing ring 21 plays a sealing role to prevent the release agent inside the annular groove 19 from flowing out from the gap between the rotating pipe 2 and the fixed ring 3.

[0026] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A micro-spraying device for mold release agent on automotive parts, comprising a fixing ring (3), characterized in that: A rotating tube (2) is rotatably installed inside the fixed ring (3). A Laval tube (1) is fixedly connected to the bottom end of the rotating tube (2). A rotating air pipe (12) is fixedly installed inside the rotating tube (2). A turbine blade (11) is fixedly installed inside the rotating air pipe (12). A jet nozzle (14) is fixedly connected to the bottom end of the rotating air pipe (12). The jet nozzle (14) is located inside the Laval tube (1), and an annular flow channel (13) is formed between the outer surface of the jet nozzle (14) and the inner wall of the Laval tube (1). A baffle (15) is fixedly installed inside the Laval tube (1) near the bottom end. An air inlet pipe (5) is rotatably connected to the top end of the rotating air pipe (12) through a rotary joint (6). Several connecting holes (20) are evenly spaced in an annular array on the outer surface of the rotating tube (2) at the position of the fixed ring (3). A liquid inlet pipe (4) is fixedly connected to the outer surface of the fixed ring (3).

2. The micro-spraying device for mold release agent of automotive parts according to claim 1, characterized in that: The base plate (10) is fixedly installed on the upper surface of the fixed ring (3), and the rotating air pipe (12) passes through the base plate (10). The base plate (10) is fixedly connected to the four corners on the upper surface of the base plate (10), and the top plate (7) is fixedly connected to the end of the column (9).

3. The micro-spraying device for mold release agent of automotive parts according to claim 2, characterized in that: An installation plate (8) is fixedly installed at the middle position of the upper surface of the top plate (7), and installation holes are provided at the four corners of the upper surface of the installation plate (8).

4. The micro-spraying device for mold release agent of automotive parts according to claim 1, characterized in that: The outer surface of the rotating air tube (12) is provided with a first annular sealing groove (16) located above the rotating tube (2), and a first sealing ring (17) is provided inside the first annular sealing groove (16). The inner wall of the fixed ring (3) is provided with a first annular sealing protrusion (18) near the upper surface, and the first annular sealing protrusion (18) is located inside the first annular sealing groove (16).

5. The micro-spraying device for mold release agent of automotive parts according to claim 1, characterized in that: The outer surface of the rotating tube (2) is provided with a second annular sealing groove (23) at the position above and below the connecting hole (20), and a second sealing ring (21) is provided inside the two second annular sealing grooves (23). The inner wall of the fixed ring (3) is provided with two second annular sealing protrusions (22), and the two second annular sealing protrusions (22) are respectively located inside the two second annular sealing grooves (23).

6. The micro-spraying device for mold release agent of automotive parts according to claim 1, characterized in that: The outer surface of the rotating tube (2) is provided with an annular groove (19) at the position of the connecting hole (20).

Images