Release agent automatic spraying mechanism for die-casting die and spraying method

Abstract

The invention relates to the relevant technical field of release agent spraying, in particular to an automatic release agent spraying mechanism for a die-casting die and a spraying method.The automatic release agent spraying mechanism comprises a bottom plate, a guide rail, a rail trolley, an anti-diffusion frame and a spraying mechanism, the bottom plate is fixedly installed in the middle of an equipment support, and the guide rail is fixed to the bottom plate through a guide rail support; the rail trolley is installed on the guide rail in a walking mode. According to the automatic release agent spraying mechanism for the die-casting die, the automatic release agent spraying mechanism for the die-casting die is formed by combining the bottom plate, the guide rail, the rail trolley, the anti-diffusion frame and the spraying mechanism, so that in the spraying process of the spraying mechanism, a lower spraying structure and an upper spraying structure in the spraying mechanism conduct atomization spraying on a lower die cavity and an upper die cavity correspondingly; and the atomized release agent can be blocked through the anti-diffusion frame, so that the release agent is effectively prevented from diffusing and overflowing in quantity, and the influence of the atomized release agent on the body health of workers is effectively avoided.

Description

Technical Field

[0001] This invention relates to the technical field of mold release agent spraying, specifically to an automatic mold release agent spraying mechanism and spraying method for die casting molds. Background Technology

[0002] Die casting molds are tools used to cast metal parts. Before casting metal parts, the mold cavity needs to be sprayed with a release agent to facilitate the subsequent demolding process. A Chinese patent document with publication number CN112170087B discloses a mold release agent spraying device for aluminum alloy pot production. The device includes a handle with a drive motor installed inside. The output shaft of the drive motor is fixedly connected to the end of the handle, and a variable coating mechanism is fixedly connected to the bottom end. The variable coating mechanism includes a rotating shaft with a threaded groove on its surface. A rotating block is located inside the threaded groove, and a threaded hole is located inside the rotating block. A rotating handle is fixedly connected to the top of the rotating block. A rotating groove is formed on the surface of the rotating block, and a rotating ring is rotatably connected inside the rotating groove. Multiple first connecting shafts are fixedly connected to the surface of the rotating ring. The rotating shaft is surrounded by... Multiple arc-shaped guide rails are provided. An arc-shaped rack is fixedly connected to the inner surface of the arc-shaped guide rail. Guide grooves are provided on both sides of the arc-shaped rack. The inner wall of the guide groove is slidably connected to a rotating bracket. A movable toothed ring is meshed with the front side of the arc-shaped rack. A rotating bracket is fixedly connected inside the movable toothed ring. A sidewall coating is installed inside the rotating bracket. A bearing is fixedly connected to the surface of the rotating bracket. A movable seat is fixedly connected to the surface of the bearing. A rotating seat is fixedly connected to the top of the movable seat. A second connecting shaft is fixedly connected to both ends of the rotating seat. A connecting rod is provided between the first connecting shaft and the second connecting shaft. A connecting ring is fixedly connected to both ends of the connecting rod. A bottom wall coating is provided at the bottom end of the rotating shaft. However, the above solution involves rotating a handle to drive a rotating block, which in turn retracts the sidewall coating to deform it and adapt it to the shape of the mold cavity before applying the release agent. However, this application method requires applying the release agent to various locations within the mold cavity, resulting in relatively low overall efficiency and impacting the normal efficiency of the device. Therefore, this invention proposes an automatic release agent spraying mechanism and method for die-casting molds to solve the above problems. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic spraying mechanism and method for mold release agent for die casting molds, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an automatic spraying mechanism for a release agent for die-casting molds, comprising: The base plate is fixedly installed at the middle position of the equipment bracket; The guide rail is fixed to the base plate by a guide rail support; A track trolley, which travels on a guide rail; An anti-diffusion frame, wherein the anti-diffusion frame is a rectangular frame structure, and a connecting rod is fixedly installed on the side of the anti-diffusion frame, the connecting rod being fixedly connected to the track trolley; A spraying mechanism is installed inside the cavity of the anti-diffusion frame. The spraying mechanism includes a lower spraying structure and an upper spraying structure.

[0005] Preferably, a lower mold body is fixedly installed on the base plate, a top plate is fixedly installed on the top of the equipment bracket, a hydraulic mechanism is fixedly installed on the top plate, a guide rod is fixedly installed between the base plate and the top plate, an upper mold mounting seat is movably installed on the guide rod, an upper mold body is fixedly installed on the lower surface of the upper mold mounting seat, the lower spraying structure is used to spray a release agent onto the lower mold cavity on the lower mold body, and the upper spraying structure is used to spray a release agent onto the upper mold cavity on the upper mold body.

[0006] Preferably, an installation rod is fixedly installed on the inner wall of the anti-diffusion frame via a connecting beam. An installation tube is installed on the installation rod. A force-bearing component is threaded to the lower end face of the installation rod. A force-bearing ring is integrally formed on the upper end face of the installation tube. The force-bearing ring is sleeved on the installation rod. The installation tube is sleeved on the force-bearing component. A return spring is sleeved on the installation rod. The two ends of the return spring abut against the force-bearing ring and the force-bearing component, respectively. The lower spraying structure is fixed to the lower end of the installation tube via a lower fixing ring. The upper spraying structure is fixed to the upper end of the installation tube via an upper fixing ring.

[0007] Preferably, a force-bearing plate is fixedly installed on the side wall of the mounting tube, and a set of force-bearing plates are symmetrically arranged. A piston tube is fixedly installed on the upper surface of the force-bearing plate, and a piston is movably installed in the inner cavity of the piston tube. A force-bearing rod is fixedly installed on the upper end face of the piston. A pressure relief hole is opened on the force-bearing plate, and the pressure relief hole is connected to the inner cavity of the piston tube. The upper end face of the force-bearing rod is correspondingly arranged with the lower end face of the upper mold body, and the force-bearing rod is staggered from the upper mold cavity.

[0008] Preferably, during actual installation, the lower side of the anti-diffusion frame is flush with the upper side of the lower mold body, and the outer contour of the anti-diffusion frame matches the outer contour dimensions of the lower mold body and the upper mold body. When the reset spring is in the reset state, the lower spraying structure is completely retracted into the anti-diffusion frame, and at this time, the upper end of the force-bearing rod is higher than the upper surface of the anti-diffusion frame, and the upper spraying structure extends into the upper mold cavity on the upper mold body.

[0009] Preferably, when the upper mold body presses on the anti-diffusion frame, the force rod is pressed down, the upper mold body presses down on the anti-diffusion frame for three seconds, the time period for the gas in the piston tube to be completely discharged through the pressure relief hole is greater than ten seconds, and when the upper mold body just presses on the anti-diffusion frame, the lower spraying structure moves to the bottom position of the lower mold cavity, and at this time, the upper spraying structure has not entered the upper mold cavity.

[0010] Preferably, a release agent feeding pipe is fixedly installed on the anti-diffusion frame, and both the lower spraying structure and the upper spraying structure are connected to the release agent feeding pipe through spring tubes. The outer end of the release agent feeding pipe is connected to the release agent supply equipment through a liquid delivery hose.

[0011] Preferably, the anti-diffusion frame is provided with an air extraction pipe, and the outer end of the air extraction pipe is connected to an air extraction device through an air extraction hose.

[0012] Preferably, both the lower and upper spraying structures consist of a main pipe and a rotating nozzle. The rotating nozzle is rotatably mounted on the main pipe via a sealed bearing, and atomizing nozzles are evenly distributed on the rotating nozzle. A feeding seat is integrally formed at the lower end of the main pipe, and the lower end of the feeding seat is sealed. A liquid delivery channel is formed on the inner wall of the feeding seat. A force-bearing tooth is integrally formed on the inner wall of the rotating nozzle. Both the force-bearing tooth and the liquid delivery channel are arranged in a ring. The end of the liquid delivery channel faces the inclined surface of the force-bearing tooth, and the release agent sprayed from the liquid delivery channel exerts a force on the inclined surface of the force-bearing tooth, causing the rotating nozzle to rotate around the main pipe.

[0013] An automatic spraying method for a release agent for die casting molds is disclosed. The automatic spraying method for a release agent for die casting molds is used to operate the aforementioned automatic spraying mechanism for a release agent for die casting molds. The automatic spraying method involves driving a track trolley to move an anti-diffusion frame between the upper mold body and the lower mold body, and then moving it through a hydraulic mechanism to press the anti-diffusion frame onto the lower mold body. Then, the release agent is sprayed onto the lower mold cavity on the lower mold body through a lower spraying structure, and the release agent is sprayed onto the upper mold cavity on the upper mold body through an upper spraying structure.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting up an automatic release agent spraying mechanism for die-casting molds, which consists of a base plate, guide rail, track trolley, anti-diffusion frame and spraying mechanism, the lower and upper spraying structures in the spraying mechanism atomize the release agent in the lower mold cavity and the upper mold cavity respectively during the spraying process. This effectively improves the spraying efficiency of the release agent. Furthermore, the anti-diffusion frame can block the atomized release agent, thereby effectively preventing the release agent from spreading and overflowing in large quantities, and thus effectively preventing the atomized release agent from affecting the health of the workers. 2. By setting an installation rod on the inner wall of the anti-diffusion frame via a connecting beam, an installation tube is installed on the installation rod, and a return spring is sleeved on the installation rod, ensuring that both ends of the return spring abut against the force ring and the force-bearing component respectively. By setting a force plate on the side wall of the installation tube, a piston tube is set on the upper surface of the force plate, a piston is set in the inner cavity of the piston tube, and a force rod is set on the piston, so that when the upper mold body presses on the anti-diffusion frame, the return spring can store energy, and a pressure relief hole is opened on the force plate, so that the lower and upper spraying structures can slowly move from bottom to top, thereby completing the spraying of the lower and upper mold cavities, effectively improving the spraying coverage effect of the release agent. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram showing the installation position of the anti-diffusion frame of the present invention; Figure 3 This is a half-sectional view of the anti-diffusion frame of the present invention in the lateral direction; Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle; Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point B; Figure 6 for Figure 4 Enlarged schematic diagram of the structure at point C; Figure 7 This is a half-sectional view of the anti-diffusion frame of the present invention in the longitudinal direction; Figure 8 for Figure 7 Enlarged schematic diagram of the structure at point D; Figure 9 This is a schematic diagram of the anti-diffusion frame structure of the present invention; Figure 10 for Figure 9 Enlarged schematic diagram of the structure at point E in the middle; Figure 11 This is a half-sectional view of the rotating nozzle of the present invention; Figure 12 for Figure 11 Enlarged schematic diagram of the structure at point F.

[0016] In the diagram: 1. Base plate; 2. Guide rail; 3. Track trolley; 4. Anti-diffusion frame; 5. Equipment support; 6. Lower mold body; 7. Top plate; 8. Hydraulic mechanism; 9. Guide rod; 10. Upper mold mounting seat; 11. Upper mold body; 12. Guide rail support; 13. Connecting rod; 14. Lower spraying structure; 15. Upper spraying structure; 16. Connecting beam; 17. Mounting rod; 18. Mounting pipe; 19. Force-bearing component; 20. Return spring; 21. Lower fixing ring; 22. Upper fixing ring; 23. Force-bearing plate; 24. Piston pipe; 25. Piston; 26. Force-bearing rod; 27. Pressure relief hole; 28. Release agent feeding pipe; 29. ​​Air extraction pipe; 30. Main pipe; 31. Rotating nozzle; 32. Sealed bearing; 33. Atomizing nozzle; 34. Feeding seat; 35. Liquid delivery channel; 36. Force-bearing tooth. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1-12 The present invention provides the following four preferred embodiments: Example 1: An automatic spraying mechanism for release agent in die casting molds includes a base plate 1, a guide rail 2, a track trolley 3, an anti-diffusion frame 4, and a spraying mechanism. The base plate 1 is fixedly installed at the middle position of the equipment support 5. The guide rail 2 is fixed to the base plate 1 by a guide rail support 12. The track trolley 3 is mounted on the guide rail 2. The anti-diffusion frame 4 is a rectangular frame structure, and a connecting rod 13 is fixedly installed on the side of the anti-diffusion frame 4. The connecting rod 13 is fixedly connected to the track trolley 3. The spraying mechanism is installed in the inner cavity of the anti-diffusion frame 4. The spraying mechanism includes a lower spraying structure 14 and an upper spraying structure 15. A distance sensor is provided on the guide rail 2 to detect the position of the track trolley 3.

[0019] A lower mold body 6 is fixedly installed on the base plate 1. A top plate 7 is fixedly installed on the top of the equipment support 5. A hydraulic mechanism 8 is fixedly installed on the top plate 7. A guide rod 9 is fixedly installed between the base plate 1 and the top plate 7. An upper mold mounting seat 10 is movably installed on the guide rod 9. An upper mold body 11 is fixedly installed on the lower surface of the upper mold mounting seat 10. The lower spraying structure 14 is used to spray a release agent onto the lower mold cavity of the lower mold body 6. The upper spraying structure 15 is used to spray a release agent onto the upper mold cavity of the upper mold body 11. An automatic release agent spraying mechanism for die-casting molds is composed of a base plate 1, guide rail 2, track trolley 3, anti-diffusion frame 4, and spraying mechanism. During the spraying process, the lower spraying structure 14 and the upper spraying structure 15 in the spraying mechanism atomize the lower mold cavity and the upper mold cavity respectively, thereby effectively improving the spraying efficiency of the release agent. Furthermore, the anti-diffusion frame 4 can block the atomized release agent, thereby effectively preventing the release agent from spreading and overflowing in large quantities, and thus effectively preventing the atomized release agent from affecting the health of the workers.

[0020] In Example 2, based on Example 1, an installation rod 17 is fixedly installed on the inner wall of the anti-diffusion frame 4 via a connecting beam 16. An installation tube 18 is installed on the installation rod 17. A force-bearing component 19 is threadedly connected to the lower end face of the installation rod 17. A force-bearing ring is integrally formed on the upper end face of the installation tube 18. The force-bearing ring is sleeved on the installation rod 17. The installation tube 18 is sleeved on the force-bearing component 19. A return spring 20 is sleeved on the installation rod 17. The two ends of the return spring 20 are respectively abutted against the force-bearing ring and the force-bearing component 19. The lower spraying structure 14 is fixed to the lower end of the installation tube 18 via a lower fixing ring 21. The upper spraying structure 15 is fixed to the upper end of the installation tube 18 via an upper fixing ring 22.

[0021] A force-bearing plate 23 is fixedly installed on the side wall of the mounting tube 18. A set of force-bearing plates 23 are symmetrically arranged. A piston tube 24 is fixedly installed on the upper surface of the force-bearing plate 23. A piston 25 is movably installed in the inner cavity of the piston tube 24. A force-bearing rod 26 is fixedly installed on the upper end face of the piston 25. A pressure relief hole 27 is opened on the force-bearing plate 23. The pressure relief hole 27 is connected to the inner cavity of the piston tube 24. The upper end face of the force-bearing rod 26 is correspondingly arranged with the lower end face of the upper mold body 11, and the force-bearing rod 26 is staggered from the upper mold cavity.

[0022] When the anti-diffusion frame 4 is actually installed, the lower side of the anti-diffusion frame 4 is flush with the upper side of the lower mold body 6, and the outer contour of the anti-diffusion frame 4 matches the outer contour dimensions of the lower mold body 6 and the upper mold body 11. When the reset spring 20 is in the reset state, the lower spraying structure 14 is completely retracted into the anti-diffusion frame 4, and at this time, the upper end of the force rod 26 is higher than the upper surface of the anti-diffusion frame 4, and the upper spraying structure 15 extends into the upper mold cavity on the upper mold body 11.

[0023] When the upper mold body 11 presses down on the anti-diffusion frame 4, the force rod 26 is pressed down. The upper mold body 11 presses down on the anti-diffusion frame 4 for three seconds. The time period for the gas in the piston tube 24 to be completely discharged through the pressure relief hole 27 is greater than ten seconds, which allows the lower spraying structure 14 and the upper spraying structure 15 to move slowly, thereby ensuring a better spraying coverage effect of the release agent. When the upper mold body 11 just presses down on the anti-diffusion frame 4, the lower spraying structure 14 moves to the bottom position of the lower mold cavity, and at this time, the upper spraying structure 15 has not entered the upper mold cavity. An installation rod 17 is set on the inner wall of the anti-diffusion frame 4 through the connecting beam 16. An installation rod 17 is installed on the installation rod 17. The pipe 18 is fitted with a return spring 20 on the mounting rod 17, and the two ends of the return spring 20 are respectively abutted against the force ring and the force-bearing component 19. By setting a force plate 23 on the side wall of the mounting pipe 18, setting a piston pipe 24 on the upper surface of the force plate 23, setting a piston 25 in the inner cavity of the piston pipe 24, and setting a force rod 26 on the piston 25, the return spring 20 can store energy when the upper mold body 11 is pressed on the anti-diffusion frame 4. A pressure relief hole 27 is opened on the force plate 23, so that the lower spraying structure 14 and the upper spraying structure 15 can slowly move from bottom to top, thereby completing the spraying of the lower mold cavity and the upper mold cavity, thus effectively improving the spraying coverage effect of the release agent.

[0024] A release agent feeding pipe 28 is fixedly installed on the anti-diffusion frame 4. The lower spraying structure 14 and the upper spraying structure 15 are both connected to the release agent feeding pipe 28 through spring tubes. The outer end of the release agent feeding pipe 28 is connected to the release agent supply equipment through a liquid delivery hose.

[0025] In Example 3, based on Example 2, an air extraction pipe 29 is provided on the anti-diffusion frame 4. The outer end of the air extraction pipe 29 is connected to an air extraction device through an air extraction hose. The air extraction device extracts excess mist-like release agent from the anti-diffusion frame 4, thereby preventing the mist-like release agent from overflowing when the air extraction pipe 29 is extracted.

[0026] Both the lower spraying structure 14 and the upper spraying structure 15 consist of a main pipe 30 and a rotating nozzle 31. The rotating nozzle 31 is rotatably mounted on the main pipe 30 via a sealed bearing 32, and atomizing nozzles 33 are evenly arranged on the rotating nozzle 31. A feeding seat 34 is integrally formed on the lower end of the main pipe 30. The lower end of the feeding seat 34 is sealed, and a liquid delivery channel 35 is opened on the inner wall of the feeding seat 34. A force-bearing tooth 36 is integrally formed on the inner wall of the rotating nozzle 31. The force-bearing tooth 36 and the liquid delivery channel 35 are arranged in a circle. The end of the liquid delivery channel 35 faces the inclined surface of the force-bearing tooth 36, and the release agent sprayed in the liquid delivery channel 35 exerts a force on the inclined surface of the force-bearing tooth 36, so that the rotating nozzle 31 rotates around the main pipe 30. By rotating the rotating nozzle 31 around the main pipe 30, the spraying coverage effect of the rotating nozzle 31 is further improved.

[0027] Example 4, based on Example 3, provides an automatic spraying method for a release agent for die casting molds. This method operates the aforementioned automatic spraying mechanism for the release agent for die casting molds. The automatic spraying method involves driving a track trolley 3 to move the anti-diffusion frame 4 between the upper mold body 11 and the lower mold body 6. Then, a hydraulic mechanism 8 moves the frame, causing the anti-diffusion frame 4 to press against the lower mold body 6. The lower spraying structure 14 then sprays the release agent onto the lower mold cavity of the lower mold body 6, and the upper spraying structure 15 sprays the release agent onto the upper mold cavity of the upper mold body 11.

[0028] Although the illustrative specific embodiments of this application have been described above to enable those skilled in the art to understand this application, this application is not limited to the scope of the specific embodiments. For those skilled in the art, all applications utilizing the concept of this application are protected as long as various variations are within the spirit and scope of this application as defined and determined by the appended claims.

Claims

1. An automatic spraying mechanism for release agent in die-casting molds, characterized in that: include: The base plate (1) is fixedly installed at the middle position of the equipment bracket (5); Guide rail (2), the guide rail (2) is fixed on the base plate (1) by guide rail support (12); A track trolley (3) is mounted on a guide rail (2). Anti-diffusion frame (4), the anti-diffusion frame (4) is a rectangular frame structure, and a connecting rod (13) is fixedly installed on the side of the anti-diffusion frame (4), the connecting rod (13) is fixedly connected to the track trolley (3); The spraying mechanism is installed in the inner cavity of the anti-diffusion frame (4), and the spraying mechanism includes a lower spraying structure (14) and an upper spraying structure (15). An installation rod (17) is fixedly installed on the inner side wall of the anti-diffusion frame (4) via a connecting beam (16). An installation tube (18) is installed on the installation rod (17). A force plate (23) is fixedly installed on the side wall of the installation tube (18). A pressure relief hole (27) is provided on the force plate (23). A reset spring (20) is sleeved on the installation rod (17).

2. The automatic spraying mechanism for release agent for die-casting molds according to claim 1, characterized in that: The lower mold body (6) is fixedly installed on the base plate (1), the top plate (7) is fixedly installed on the top of the equipment bracket (5), the hydraulic mechanism (8) is fixedly installed on the top plate (7), the guide rod (9) is fixedly installed between the base plate (1) and the top plate (7), the upper mold mounting seat (10) is movably installed on the guide rod (9), the upper mold body (11) is fixedly installed on the lower surface of the upper mold mounting seat (10), the lower spraying structure (14) is used to spray the lower mold cavity on the lower mold body (6) with release agent, and the upper spraying structure (15) is used to spray the upper mold cavity on the upper mold body (11) with release agent.

3. The automatic spraying mechanism for release agent for die-casting molds according to claim 2, characterized in that: The lower end face of the mounting rod (17) is threaded with a force-bearing component (19), and the upper end face of the mounting tube (18) is integrally formed with a force-bearing ring. The force-bearing ring is sleeved on the mounting rod (17), and the mounting tube (18) is sleeved on the force-bearing component (19). The two ends of the reset spring (20) are respectively abutted against the force-bearing ring and the force-bearing component (19). The lower spraying structure (14) is fixed to the lower end of the mounting tube (18) by the lower fixing ring (21), and the upper spraying structure (15) is fixed to the upper end of the mounting tube (18) by the upper fixing ring (22).

4. The automatic spraying mechanism for release agent for die-casting molds according to claim 3, characterized in that: A set of force plates (23) are symmetrically arranged, and a piston tube (24) is fixedly installed on the upper surface of the force plate (23). A piston (25) is movably installed in the inner cavity of the piston tube (24). A force rod (26) is fixedly installed on the upper end face of the piston (25). The pressure relief hole (27) is connected to the inner cavity of the piston tube (24). The upper end face of the force rod (26) is correspondingly arranged with the lower end face of the upper mold body (11), and the force rod (26) is staggered from the upper mold cavity.

5. The automatic spraying mechanism for release agent for die-casting molds according to claim 4, characterized in that: When the anti-diffusion frame (4) is actually installed, the lower side of the anti-diffusion frame (4) is flush with the upper side of the lower mold body (6). The outer contour of the anti-diffusion frame (4) matches the outer contour dimensions of the lower mold body (6) and the upper mold body (11). When the reset spring (20) is in the reset state, the lower spraying structure (14) is completely retracted into the anti-diffusion frame (4). At this time, the upper end of the force rod (26) is higher than the upper surface of the anti-diffusion frame (4), and the upper spraying structure (15) extends into the upper mold cavity on the upper mold body (11).

6. The automatic spraying mechanism for release agent for die-casting molds according to claim 5, characterized in that: When the upper mold body (11) presses on the anti-diffusion frame (4), the force rod (26) is pressed down. The upper mold body (11) presses down on the anti-diffusion frame (4) for three seconds. The time period for the gas in the piston tube (24) to be completely discharged through the pressure relief hole (27) is greater than ten seconds. When the upper mold body (11) just presses on the anti-diffusion frame (4), the lower spraying structure (14) moves to the bottom position of the lower mold cavity. At this time, the upper spraying structure (15) has not entered the upper mold cavity.

7. The automatic spraying mechanism for release agent for die-casting molds according to claim 6, characterized in that: The anti-diffusion frame (4) is fixedly installed with a release agent feeding pipe (28). The lower spraying structure (14) and the upper spraying structure (15) are both connected to the release agent feeding pipe (28) through spring tubes. The outer end of the release agent feeding pipe (28) is connected to the release agent supply equipment through a liquid delivery hose.

8. The automatic spraying mechanism for release agent for die-casting molds according to claim 7, characterized in that: The anti-diffusion frame (4) is provided with an air extraction pipe (29), and the outer end of the air extraction pipe (29) is connected to the air extraction equipment through an air extraction hose.

9. The automatic spraying mechanism for release agent for die-casting molds according to claim 8, characterized in that: Both the lower spraying structure (14) and the upper spraying structure (15) consist of a main pipe (30) and a rotating nozzle (31). The rotating nozzle (31) is rotatably mounted on the main pipe (30) via a sealed bearing (32), and atomizing nozzles (33) are evenly arranged on the rotating nozzle (31). A feeding seat (34) is integrally formed on the lower end of the main pipe (30). The lower end of the feeding seat (34) is sealed, and the feeding seat (34) has a closed end. A liquid delivery channel (35) is provided on the inner side wall of the cavity. A force-receiving tooth (36) is integrally formed on the inner side wall of the rotating nozzle (31). The force-receiving tooth (36) and the liquid delivery channel (35) are both arranged in a circle. The end of the liquid delivery channel (35) faces the inclined surface of the force-receiving tooth (36). The release agent sprayed in the liquid delivery channel (35) exerts a force on the inclined surface of the force-receiving tooth (36) so that the rotating nozzle (31) rotates around the main pipe (30).

10. An automatic spraying method for a release agent for die-casting molds, characterized in that: The automatic release agent spraying method for die casting molds is used to operate any one of the automatic release agent spraying mechanisms for die casting molds according to claims 2-9. The automatic release agent spraying method is as follows: the anti-diffusion frame (4) is moved between the upper mold body (11) and the lower mold body (6) by driving the track trolley (3), and then the anti-diffusion frame (4) is pressed on the lower mold body (6) by the hydraulic mechanism (8). Then, the release agent is sprayed on the lower mold cavity on the lower mold body (6) by the lower spraying structure (14), and the release agent is sprayed on the upper mold cavity on the upper mold body (11) by the upper spraying structure (15).

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