Release agent spraying device and spraying method

Abstract

The present invention belongs to the technical field of spraying devices, and specifically relates to a release agent spraying device and a spraying method, comprising a sprayer, wherein a conveyor belt for conveying molds is arranged inside the sprayer, and a retractable spray gun is installed on one side of the sprayer; a suction mechanism for absorbing scattered release agent is arranged on a side of the sprayer close to the spray gun; the suction mechanism comprises an electric push rod fixedly installed on one side of the sprayer, and an arc-shaped protective plate is fixedly installed on the output end of the electric push rod; the vacuum pump of the present invention sucks the scattered release agent through an air suction pipe, so the sucked release agent will be adsorbed and purified by activated carbon when passing through a filter frame, and harmful gases in the release agent will remain on the surface of the activated carbon, while the purified gas is discharged by the air jet pipe, thereby greatly reducing the harm of the scattered release agent to the workers' bodies and effectively preventing the release agent from corroding metal equipment.

Description

Technical Field

[0001] The invention belongs to the technical field of spraying devices, in particular to a release agent spraying device and a spraying method. Background Art

[0002] Release agent is a functional substance between the mold and the finished product. Release agent is chemically resistant and will not dissolve when in contact with the chemical components of different resins. Release agent is also heat and stress resistant and will not decompose or wear easily. Release agent adheres to the mold and does not transfer to the processed part, and does not hinder painting or other secondary processing operations.

[0003] Release agents are often sprayed on the mold to facilitate the release of the product after molding. The release agent is sprayed out through a spraying device. The commonly used spraying device is a spray gun, which is a device that uses liquid or compressed air to quickly release as power. Spray guns are divided into two types: general pressure type and pressurized type.

[0004] In order to improve the accuracy of spraying, the spray gun will move when working, and then get closer to the mold to be sprayed. When the release agent is sprayed through the spray gun, since the sprayed release agent is close to the mold to be sprayed, part of the release agent will be rebounded and scattered around after contacting the mold. Since the release agent contains a large amount of chemical agents, such as organic solvents, ethanol, acetone, petroleum ether, etc., these organic solvents are used to dissolve other ingredients and adjust the viscosity, but long-term contact or inhalation of these organic solvents by workers will cause damage to the respiratory system and skin. At the same time, if the scattered release agent is not cleaned up in time, the metal equipment at the spraying site will be easily corroded and damaged.

[0005] To this end, the present invention provides a release agent spraying device and a spraying method. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: a release agent spraying device described in the present invention comprises a sprayer, a conveyor belt for conveying a mold is arranged in the sprayer, and a retractable spray gun is installed on one side of the sprayer; a suction mechanism for absorbing the scattered release agent is arranged on a side of the sprayer close to the spray gun; the suction mechanism comprises an electric push rod fixedly installed on one side of the sprayer, an arc-shaped guard plate is fixedly installed on the output end of the electric push rod, a protection mechanism is arranged between the guard plate and the electric push rod, a rectangular frame is fixedly installed on the side of the guard plate away from the spray gun, an air pump and a filter frame fixed by screws are fixedly installed inside the rectangular frame, activated carbon is arranged in the filter frame, an air suction pipe passing through the filter frame and the guard plate is fixedly installed at one end of the air suction pump, the overlap of the air suction pipe and the filter frame is a hollow filter screen structure, and an air jet pipe passing through the rectangular frame is fixedly installed on one side of the air suction pump; a quick-drying component for air-drying the release agent in the mold is installed at the bottom of the air jet pipe.

[0008] Furthermore, a filtering mechanism is provided on the surface of the intake pipe, and the filtering mechanism includes a plurality of first fixed tubes and a second fixed tube arranged on both sides of the filter frame, the first fixed tube and the second fixed tube are both fixedly installed on the surface of the intake pipe and connected with the interior thereof, and a plurality of through holes connected with the interior are opened on the surfaces of the first fixed tube and the second fixed tube; two symmetrically arranged arc-shaped guide plates are fixedly installed inside the intake pipe, the center of the guide plate is hollowed out, and a breathable cloth is fixedly installed in the rectangular groove of the guide plate.

[0009] Furthermore, a cross bar is fixedly installed inside the air intake pipe, a fixing rod is fixedly installed on one side of the cross bar, one end of the fixing rod is rotatably connected to a fan blade, and the fan blade is located in the overlapping area of ​​the air intake pipe and the filter frame.

[0010] Furthermore, a vibration assembly is provided on the surface of the fan blade, and the vibration assembly includes a storage frame fixedly mounted on the fan blade, the interior of the storage frame is slidably connected with a push plate via a spring, a rolling ball is engraved inside the storage frame, and the push plate and the rolling ball are in contact with each other.

[0011] Furthermore, the quick-drying component includes a connecting tube connected to the jet tube, the end of the connecting tube away from the jet tube is fixedly connected to a hollow ball head, the surface of the ball head is sleeved with a rotating tube, and the end of the rotating tube away from the ball head is threadedly connected to an end cap.

[0012] Furthermore, an extension mechanism is provided at one end of the suction pipe away from the vacuum pump, and the extension mechanism includes a sleeve fixed to one end of the suction pipe by screws, one end of the sleeve is rotatably connected to two symmetrically arranged cover plates by a torsion spring, a through groove connected to the interior is provided on the surface of the sleeve, the interior of the through groove is rotatably connected to a top plate by a torsion spring, and an arc-shaped top rod is fixedly installed on one side of the cover plate close to the top plate.

[0013] Furthermore, a bellows connected to one end of the air intake pipe is fixedly installed inside the sleeve, and one end of the bellows away from the air intake pipe is fixedly connected to the top plate.

[0014] Furthermore, the protection mechanism includes a multi-stage telescopic tube fixedly installed between the electric push rod and the guard plate, and the multi-stage telescopic tube is composed of a plurality of hollow rings connected in a sliding manner.

[0015] Furthermore, the several hollow rings constituting the multi-stage telescopic tube are connected in a sealing and sliding manner, a fixed frame is fixedly installed on a side of the guard plate close to the spray gun, a baffle is sealed and slidably connected inside the fixed frame, and the fixed frame and the multi-stage telescopic tube are connected through an air pipe.

[0016] A spraying method using the above-mentioned release agent spraying device comprises the following steps:

[0017] S1: Place the mold waiting to be sprayed with the release agent on the conveyor belt, start the conveyor belt, and let the conveyor belt move the mold on the sprayer. Then start the electric push rod, and let the electric push rod move the guard plate and the rectangular frame toward the conveyor belt, so as to reach the designated position in advance.

[0018] S2: After the release agent is sprayed out by the spray gun, the vacuum pump sucks the scattered release agent into the rectangular frame through the suction pipe. The sucked release agent will be adsorbed and purified by the activated carbon when passing through the filter frame and discharged through the jet pipe;

[0019] S3: Part of the gas ejected from the jet pipe will enter the connecting pipe, allowing the gas to enter the rotating pipe through the connecting pipe and the hollow ball head and spray toward the mold.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. A release agent spraying device and a spraying method described in the present invention suck the scattered release agent through the suction pipe by an air pump, so the sucked release agent will be adsorbed and purified by activated carbon when passing through the filter frame (activated carbon can effectively adsorb harmful substances such as ethanol, acetone, petroleum ether, etc.), leaving the harmful gas in the release agent on the surface of the activated carbon, and the purified gas is discharged by the air jet pipe, thereby greatly reducing the harm of the scattered release agent to the body of the staff, and effectively preventing the release agent from corroding the metal equipment. Through the structure of the above design, the release agent can be effectively prevented from drifting, and the absorbed release agent can be purified and then discharged. Part of the gas sprayed through the air jet pipe will enter the connecting pipe, and the end cap at the port of the connecting pipe is removed in advance, so that the gas enters the rotating pipe through the connecting pipe and the hollow ball head and sprays to the mold, and the mold that has just been sprayed with the release agent is quickly air-dried. Rapid air-drying can reduce problems such as mold sticking and deformation in the demoulding process, avoid affecting product quality, and can also reduce the time for the mold to wait for drying, thereby improving production efficiency.

[0022] 2. A release agent spraying device and spraying method described in the present invention, when the release agent is started and sucked in through the air intake pipe, since two arc-shaped guide plates are installed in the air intake pipe, a large amount of release agent will be introduced into the first fixed pipe when passing through the guide plate, and a small part of the release agent will continue to flow through the gap between the two guide plates and the breathable cloth. The breathable cloth is installed to facilitate air circulation and provide greater suction. The release agent will be purified by the activated carbon in the filter frame when passing through the filter frame, and will be discharged after re-flowing into the air intake pipe through the second fixed pipe. When a small part of the release agent flows to the fan blades, the fan blades will rotate driven by the air flow, and then guide a small part of the release agent to the periphery, so that the release agent can be closer to the activated carbon in the overlapping area of ​​the air intake pipe and the filter frame, thereby improving the adsorption efficiency of the activated carbon. At the same time, when the fan blades rotate, they will rotate with the storage frame and the ball will continuously hit the filter of the air intake pipe, causing the filter to vibrate, thereby causing the activated carbon in the filter frame to shake and change position, causing the accumulated activated carbon to change the adsorption surface and improve the adsorption efficiency. Through the above-designed structure, a large amount of release agent can be inhaled, and the inhaled release agent can fully contact with the activated carbon in the filter frame for filtration and purification, effectively avoiding the situation where the filtration and purification effect is not ideal due to the small contact area and short time with the activated carbon.

[0023] 3. A release agent spraying device and spraying method described in the present invention can extend the air intake pipe through the designed sleeve, so that the air intake end can be closer to the port of the spray gun, reducing the dispersion of the release agent. The sleeve can be quickly disassembled by fixing with screws, and sleeves of different lengths can be installed according to actual conditions. It can also avoid obstacles in the movement and rotation of the spray gun, and can better adapt to spray guns of different models and types. The through groove and bellows are designed to increase the adsorption area to avoid the situation where only the release agent in the front is absorbed, which makes it difficult for the release agent above and below to be sucked in. At the same time, when the air intake pipe and sleeve are not in use, the top plate and cover plate can close the sleeve, thereby reducing the entry of impurities and ensuring the smoothness of the air intake pipe and sleeve when used. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] Figure 1 It is a three-dimensional structural schematic diagram of the spraying machine in the present invention;

[0026] Figure 2 It is a structural schematic diagram of the conveyor belt in the present invention;

[0027] Figure 3 It is a structural schematic diagram of the electric push rod in the present invention;

[0028] Figure 4 It is a structural schematic diagram of the guard plate in the present invention;

[0029] Figure 5 It is a schematic cross-sectional structural diagram of the rectangular frame in the present invention;

[0030] Figure 6 It is a schematic cross-sectional structural diagram of the air intake pipe in the present invention;

[0031] Figure 7 It is a schematic cross-sectional structural diagram of the connecting pipe in the present invention;

[0032] Figure 8 The present invention Figure 6 A schematic diagram of the structure at A;

[0033] Fig. 9 It is a schematic cross-sectional structural diagram of the storage frame in the present invention;

[0034] Fig.10 It is a schematic cross-sectional structural diagram of the sleeve in the present invention;

[0035] Fig.11 It is a flow chart of the method in the present invention.

[0036] In the figure: 1. Spraying machine; 2. Conveyor belt; 3. Mold; 4. Spray gun;

[0037] 10. Suction mechanism; 11. Electric push rod; 12. Guard plate; 13. Rectangular frame; 14. Air pump; 15. Suction pipe; 16. Air jet pipe; 17. Filter frame;

[0038] 18. Quick-drying assembly; 181. Connecting tube; 182. Rotating tube; 183. Ball head; 184. End cap;

[0039] 20. Protective mechanism; 21. Multi-stage telescopic tube; 22. Fixed frame; 23. Baffle; 24. Gas pipe;

[0040] 30. Filter mechanism; 31. First fixed tube; 32. Second fixed tube; 33. Through hole; 34. Guide plate; 35. Breathable cloth; 36. Cross bar; 37. Fixed rod; 38. Fan blade;

[0041] 40. Vibration assembly; 41. Storage frame; 42. Push plate; 43. Roller ball; 44. Spring;

[0042] 50. Extension mechanism; 51. Sleeve; 52. Cover plate; 53. Through groove; 54. Top plate; 55. Push rod; 56. Bellows. DETAILED DESCRIPTION

[0043] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0044] like Figures 1 to 11 As shown, a release agent spraying device according to an embodiment of the present invention comprises a sprayer 1, a conveyor belt 2 for conveying a mold 3 is arranged inside the sprayer 1, a retractable spray gun 4 is installed on one side of the sprayer 1; a suction mechanism 10 for absorbing the scattered release agent is arranged on one side of the sprayer 1 close to the spray gun 4; the suction mechanism 10 comprises an electric push rod 11 fixedly mounted on one side of the sprayer 1, an arc-shaped guard plate 12 is fixedly mounted on the output end of the electric push rod 11, and the guard plate 12 and the electric push rod 11 are connected to each other. A protective mechanism 20 is arranged in between, a rectangular frame 13 is fixedly installed on the side of the guard plate 12 away from the spray gun 4, an exhaust pump 14 and a filter frame 17 fixed by screws are fixedly installed inside the rectangular frame 13, activated carbon is arranged in the filter frame 17, an air intake pipe 15 passing through the filter frame 17 and the guard plate 12 is fixedly installed at one end of the exhaust pump 14, the overlapping part of the air intake pipe 15 and the filter frame 17 is a hollow filter screen structure, and an air injection pipe 16 passing through the rectangular frame 13 is fixedly installed on one side of the exhaust pump 14.

[0045] Specifically, a quick-drying component 18 for air-drying the release agent in the mold 3 is installed at the bottom of the jet tube 16. The quick-drying component 18 includes a connecting tube 181 connected to the jet tube 16. The end of the connecting tube 181 away from the jet tube 16 is fixedly connected to a hollow ball head 183. The surface of the ball head 183 is sleeved with a rotating tube 182. The end of the rotating tube 182 away from the ball head 183 is threadedly connected to an end cap 184.

[0046] During operation, the mold 3 waiting to be sprayed with the release agent is placed on the conveyor belt 2, and the conveyor belt 2 is started, so that the conveyor belt 2 moves the mold 3 on the sprayer 1 (generally, for small-volume commodity molds, such as soles, decorative plastic parts, small metal parts, etc., for production efficiency, batch molds are often purchased and used at the same time, so that the corresponding molds are set on the transmission equipment for pre-spraying of the release agent). At this time, the electric push rod 11 is started, and the electric push rod 11 moves with the guard plate 12 and the rectangular frame 13 in the direction of the conveyor belt 2, so as to reach the required position in advance. When the mold 3 moves to the bottom of the spray gun 4, the spray gun 4 is started again, and the spray gun 4 moves downward in the direction of the mold 3 and sprays the release agent. After the sprayed release agent contacts the mold 3, it will be bounced and scattered around. At this time, the vacuum pump 14 in the rectangular frame 13 has been started in advance. The vacuum pump 14 sucks the scattered release agent into the suction pipe 15 through the suction pipe 15. Since the overlapping area of ​​the suction pipe 15 and the filter frame 17 is connected and a filter screen is installed (the filter screen is installed to prevent the activated carbon in the filter frame 17 from falling into the suction pipe 15, causing the suction pipe 15 to be blocked, and the activated carbon can also surround the overlapping area of ​​the suction pipe 15 and the filter frame 17), the inhaled release agent will be adsorbed and purified by the activated carbon when passing through the filter frame 17, leaving the harmful gas in the release agent on the surface of the activated carbon, and the purified gas is discharged by the jet pipe 16, thereby greatly reducing the harm of the scattered release agent to the workers' bodies, and effectively preventing the release agent from corroding metal equipment. The structure designed above can effectively prevent the release agent from floating, and at the same time, the absorbed release agent can be purified and then discharged.

[0047] Part of the gas ejected from the jet pipe 16 will enter the connecting pipe 181. The end cap 184 at the port of the connecting pipe 181 is removed in advance, and the gas is allowed to enter the rotating pipe 182 through the connecting pipe 181 and the hollow ball head 183 and sprayed toward the mold 3, so as to quickly air dry the mold 3 that has just been sprayed with the release agent. Rapid air drying can reduce problems such as mold sticking and deformation during the demoulding process, avoid affecting product quality, and can also reduce the time the mold 3 waits for drying, thereby improving production efficiency.

[0048] A filter mechanism 30 is provided on the surface of the air intake pipe 15. The filter mechanism 30 includes a plurality of first fixed pipes 31 and second fixed pipes 32 provided on both sides of the filter frame 17. The first fixed pipes 31 and second fixed pipes 32 are both fixedly installed on the surface of the air intake pipe 15 and communicate with the interior thereof. The surfaces of the first fixed pipes 31 and second fixed pipes 32 are provided with a plurality of through holes 33 communicated with the interior thereof. Two symmetrically arranged arc-shaped guide plates 34 are fixedly installed inside the air intake pipe 15. The center of the guide plates 34 is hollowed out. A breathable cloth 35 is fixedly installed in the rectangular groove of the guide plates 34.

[0049] Specifically, a cross bar 36 is fixedly installed inside the air intake pipe 15, a fixing rod 37 is fixedly installed on one side of the cross bar 36, a fan blade 38 is rotatably connected to one end of the fixing rod 37, and the fan blade 38 is located at the overlap area of ​​the air intake pipe 15 and the filter frame 17. A vibration assembly 40 is provided on the surface of the fan blade 38, and the vibration assembly 40 includes a storage frame 41 fixedly installed with the fan blade 38, a push plate 42 is slidably connected to the storage frame 41 through a spring 44, and a rolling ball 43 is engraved inside the storage frame 41, and the push plate 42 and the rolling ball 43 are in contact with each other.

[0050] During operation, when the air intake pipe 15 is started and the release agent is sucked in, since two arc-shaped guide plates 34 are installed in the air intake pipe 15, a large amount of the release agent will be introduced into the first fixed pipe 31 when passing through the guide plates 34, while a small part of the release agent will continue to flow through the gap between the two guide plates 34 and the breathable cloth 35. The breathable cloth 35 is installed to facilitate the air intake and provide greater suction. The release agent entering the first fixed pipe 31 will flow into the rectangular frame 13 through the through hole 33. At this time, the second fixed pipe 32 will generate suction under the influence of the air pump 14. The second fixed pipe 32 will suck the release agent in the rectangular frame 13 through the through hole 33, so that the release agent in the rectangular frame 13 passes through the filter frame 17 and flows to the second fixed pipe 32. When passing through the filter frame 17, the release agent will be purified by the activated carbon in the filter frame 17, and will flow back into the air intake pipe 15 through the second fixed pipe 32 and then be discharged. When a small portion of the release agent flows to the fan blade 38, the fan blade 38 will rotate under the drive of the airflow, and then guide the small portion of the release agent to the periphery, so that the release agent can be closer to the activated carbon in the overlapping area of ​​the air intake pipe 15 and the filter frame 17, thereby improving the adsorption efficiency of the activated carbon. At the same time, when the fan blade 38 rotates, it will rotate with the storage frame 41, and the ball 43 in the storage frame 41 will continuously hit the filter screen of the air intake pipe 15, causing the filter screen to vibrate, thereby causing the activated carbon in the filter frame 17 to shake and change its position, so that the accumulated activated carbon changes the adsorption surface, thereby improving the adsorption efficiency.

[0051] Through the structure of the above design, a large amount of release agent can be sucked in, and the sucked release agent can fully contact with the activated carbon in the filter frame 17 for filtration and purification, effectively avoiding the situation where the filtration and purification effect is not ideal due to the small contact area and short contact time with the activated carbon.

[0052] An extension mechanism 50 is provided at one end of the suction pipe 15 away from the vacuum pump 14, and the extension mechanism 50 includes a sleeve 51 fixed to one end of the suction pipe 15 by screws, one end of the sleeve 51 is rotatably connected to two symmetrically arranged cover plates 52 by a torsion spring, and a through groove 53 connected to the interior is provided on the surface of the sleeve 51, and a top plate 54 is rotatably connected to the interior of the through groove 53 by a torsion spring, and an arc-shaped top rod 55 is fixedly installed on one side of the cover plate 52 close to the top plate 54.

[0053] Specifically, a bellows 56 connected to one end of the air intake pipe 15 is fixedly installed inside the sleeve 51, and the end of the bellows 56 away from the air intake pipe 15 is fixedly connected to the top plate 54.

[0054] During operation, the suction pipe 15 will rotate with the cover plate 52 and the push rod 55 toward the top plate 54, and the push rod 55 will lift the top plate 54 away from the sleeve 51, so that the through slot 53 is opened, and the top plate 54 will move and extend with the bellows 56 when rotating, so that the port of the bellows 56 is outside the sleeve 51. The sleeve 51 designed as above can extend the suction pipe 15, so that the suction end can be closer to the port of the spray gun 4, reducing the dispersion of the release agent. The sleeve 51 can be quickly disassembled by fixing with screws, and sleeves 51 of different lengths can be installed according to actual conditions, and obstacles caused by the movement and rotation of the spray gun 4 can be avoided, so that different models and types of spray guns 4 can be better adapted. The through groove 53 and the bellows 56 are designed to increase the adsorption area to avoid the situation where only the release agent in the front is absorbed, which makes it difficult to suck in the release agent above and below. At the same time, when the suction pipe 15 and the sleeve 51 are not in use, the top plate 54 and the cover plate 52 can close the sleeve 51, thereby reducing the entry of impurities and ensuring the smoothness of the suction pipe 15 and the sleeve 51 when in use.

[0055] It should be noted that the sleeve 51 , the top plate 54 , the top rod 55 and the cover plate 52 are all made of lightweight materials.

[0056] The protection mechanism 20 includes a multi-stage telescopic tube 21 fixedly installed between the electric push rod 11 and the guard plate 12. The multi-stage telescopic tube 21 is composed of a plurality of hollow rings connected in a sliding manner. The plurality of hollow rings constituting the multi-stage telescopic tube 21 are connected in a sealed sliding manner. A fixed frame 22 is fixedly installed on a side of the guard plate 12 close to the spray gun 4. A baffle 23 is connected in a sealed sliding manner inside the fixed frame 22. The fixed frame 22 and the multi-stage telescopic tube 21 are connected through an air pipe 24.

[0057] During operation, the output rod of the electric push rod 11 can be protected by installing the multi-stage telescopic tube 21, and impurities adhering to the output rod and being corroded by the release agent can be avoided. Since the multi-stage telescopic tube 21 is connected by a plurality of hollow rings that are sealed and slidably connected to each other, the multi-stage telescopic tube 21 will suck the gas in the fixed frame 22 when it moves downward, and then bring the baffle 23 back to the fixed frame 22, so that the baffle 23 no longer blocks the port of the spray gun 4, allowing the spray gun 4 to move freely. When the spray gun 4 is used and reset, the electric push rod 11 is reset again, and the multi-stage telescopic tube 21 is reset accordingly, and then the internal gas is pressed into the fixed frame 22 through the gas pipe 24, and the baffle 23 in the fixed frame 22 is pushed out, so that the baffle 23 covers the port of the spray gun 4, thereby effectively preventing the residual release agent in the port of the spray gun 4 from dripping out, and also effectively preventing impurities from entering the spray gun 4, playing a role in protecting the spray gun 4.

[0058] A spraying method using the above-mentioned release agent spraying device comprises the following steps:

[0059] S1: placing the mold 3 waiting to be sprayed with the release agent on the conveyor belt 2, and starting the conveyor belt 2, so that the conveyor belt 2 moves the mold 3 on the spraying machine 1, and then starting the electric push rod 11, so that the electric push rod 11 moves with the guard plate 12 and the rectangular frame 13 in the direction of the conveyor belt 2, so as to reach the designated position in advance;

[0060] S2: After the release agent is sprayed out by the spray gun 4, the air pump 14 sucks the scattered release agent into the rectangular frame 13 through the suction pipe 15. The sucked release agent will be adsorbed and purified by the activated carbon when passing through the filter frame 17 and discharged through the air injection pipe 16;

[0061] S3: A part of the gas ejected from the jet pipe 16 will enter the connecting pipe 181 , and the gas will enter the rotating pipe 182 through the connecting pipe 181 and the hollow ball head 183 and be ejected toward the mold 3 .

[0062] Working principle: When making various parts of shoes, such as soles and uppers, molds 3 are used. Such molds 3 have the advantages of small size and low production cost, so they are all mass-produced. By placing several molds 4 on the conveyor belt 2, spraying the release agent at the same time. By placing the mold 3 waiting to be sprayed with the release agent on the conveyor belt 2, and starting the conveyor belt 2, the conveyor belt 2 is moved on the spraying machine 1 with the mold 3, and at this time, the electric push rod 11 is started, and the electric push rod 11 is moved with the guard plate 12 and the rectangular frame 13 in the direction of the conveyor belt 2, so as to reach the specified position in advance.

[0063] When the mold 3 moves to the bottom of the spray gun 4 and the spray gun 4 is started, the spray gun 4 will move downward in the direction of the mold 3 and spray out the release agent. After the sprayed release agent contacts the mold 3, it will be bounced and scattered around. At this time, the vacuum pump 14 in the rectangular frame 13 has been started in advance. The vacuum pump 14 sucks the scattered release agent into the suction pipe 15 through the suction pipe 15. The sucked release agent will be adsorbed and purified by activated carbon when passing through the filter frame 17. When the suction pipe 15 is started and sucks in the release agent, since two arc-shaped guide plates 34 are installed in the suction pipe 15, a large amount of the release agent will be introduced into the first fixed pipe 31 when passing through the guide plates 34, and a small part of the release agent will continue to flow through the gap between the two guide plates 34 and the breathable cloth 35. The release agent entering the first fixed pipe 31 will flow into the rectangular frame 13 through the through hole 33. At this time, the second fixed pipe 32 will generate suction under the influence of the vacuum pump 14. The second fixed pipe 32 will suck the release agent in the rectangular frame 13 through the through hole 33, so that the release agent in the rectangular frame 13 passes through the filter frame 17 and flows to the second fixed pipe 32. When passing through the filter frame 17, the release agent will be purified by the activated carbon in the filter frame 17, and will flow back into the air intake pipe 15 through the second fixed pipe 32 and then be discharged. When a small part of the release agent flows to the fan blade 38, the fan blade 38 will rotate under the drive of the air flow, and then guide a small part of the release agent to the periphery, so that the release agent can be closer to the activated carbon in the overlapping area of ​​the air intake pipe 15 and the filter frame 17, thereby improving the adsorption efficiency of the activated carbon. At the same time, the fan blades 38 will rotate with the storage frame 41, and the balls 43 in the storage frame 41 will continuously hit the filter screen of the intake pipe 15, causing the filter screen to vibrate, thereby causing the activated carbon in the filter frame 17 to shake and change position, causing the accumulated activated carbon to change the adsorption surface.

[0064] When working, the suction pipe 15 will rotate toward the top plate 54 with the cover plate 52 and the push rod 55, and the top plate 54 will be lifted away from the sleeve 51 by the push rod 55, so that the through groove 53 is opened. When the top plate 54 rotates, it will move and extend with the bellows 56, so that the end of the bellows 56 is outside the sleeve 51.

[0065] Part of the gas ejected from the jet pipe 16 will enter the connecting pipe 181. The end cap 184 at the end of the connecting pipe 181 is removed in advance to allow the gas to enter the rotating tube 182 through the connecting pipe 181 and the hollow ball head 183 and spray toward the mold 3, so as to quickly air-dry the mold 3 that has just been sprayed with the release agent.

[0066] The output rod of the electric push rod 11 can be protected by installing the multi-stage telescopic tube 21 to prevent the output rod from being adhered to impurities and being corroded by the release agent. When the multi-stage telescopic tube 21 moves downward, it will suck the gas in the fixed frame 22, and then bring the baffle 23 back to the fixed frame 22, so that the baffle 23 no longer blocks the port of the spray gun 4. When the spray gun 4 is used and reset, the electric push rod 11 is reset again, and the multi-stage telescopic tube 21 is reset accordingly, and then the internal gas is pressed into the fixed frame 22 through the gas pipe 24, and the baffle 23 in the fixed frame 22 is pushed out, so that the baffle 23 covers the port of the spray gun 4.

[0067] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A release agent spraying device, comprising a sprayer (1), wherein a conveyor belt (2) for conveying a mold (3) is arranged inside the sprayer (1), and a retractable spray gun (4) is installed on one side of the sprayer (1); Features: The spraying machine (1) is provided with a suction mechanism (10) on a side close to the spray gun (4) for absorbing the scattered release agent; The suction mechanism (10) comprises an electric push rod (11) fixedly mounted on one side of the sprayer (1), an arc-shaped guard plate (12) fixedly mounted on the output end of the electric push rod (11), a protective mechanism (20) being arranged between the guard plate (12) and the electric push rod (11), a rectangular frame (13) fixedly mounted on the side of the guard plate (12) away from the spray gun (4), an air pump (14) and a filter frame (17) fixed by screws being fixedly mounted inside the rectangular frame (13), activated carbon being arranged inside the filter frame (17), an air suction pipe (15) passing through the filter frame (17) and the guard plate (12) being fixedly mounted on one end of the air pump (14), the overlapped portion of the air suction pipe (15) and the filter frame (17) being a hollow filter screen structure, and an air jet pipe (16) passing through the rectangular frame (13) being fixedly mounted on one side of the air pump (14); A quick-drying component (18) for air-drying the release agent in the mold (3) is installed at the bottom of the air jet pipe (16); A filter mechanism (30) is arranged on the surface of the air intake pipe (15), and the filter mechanism (30) comprises a plurality of first fixed pipes (31) and second fixed pipes (32) arranged on both sides of the filter frame (17), the first fixed pipes (31) and the second fixed pipes (32) are both fixedly mounted on the surface of the air intake pipe (15) and are connected to the interior thereof, and a plurality of through holes (33) are opened on the surfaces of the first fixed pipes (31) and the second fixed pipes (32) and are connected to the interior thereof; Two symmetrically arranged arc-shaped guide plates (34) are fixedly installed inside the air intake pipe (15); the central part of the guide plate (34) is hollowed out, and a breathable cloth (35) is fixedly installed in a rectangular groove at the hollowed-out part at the central part of the guide plate (34); A cross bar (36) is fixedly mounted inside the air intake pipe (15), a fixing rod (37) is fixedly mounted on one side of the cross bar (36), a fan blade (38) is rotatably connected to one end of the fixing rod (37), and the fan blade (38) is located at an overlapping area between the air intake pipe (15) and the filter frame (17); A vibration assembly (40) is provided on the surface of the fan blade (38), and the vibration assembly (40) comprises a storage frame (41) fixedly mounted on the fan blade (38); a push plate (42) is slidably connected to the interior of the storage frame (41) via a spring (44); a rolling ball (43) is engraved inside the storage frame (41), and the push plate (42) and the rolling ball (43) are in contact with each other.

2. A release agent spraying device according to claim 1, Features: The quick-drying component (18) comprises a connecting tube (181) connected to the air jet tube (16); one end of the connecting tube (181) away from the air jet tube (16) is fixedly connected to a hollow ball head (183); a rotating tube (182) is sleeved on the surface of the ball head (183); and one end of the rotating tube (182) away from the ball head (183) is threadedly connected to an end cap (184).

3. A release agent spraying device according to claim 1, Features: An extension mechanism (50) is provided at one end of the suction pipe (15) away from the suction pump (14), and the extension mechanism (50) comprises a sleeve (51) fixed to one end of the suction pipe (15) by means of screws, one end of the sleeve (51) is rotatably connected to two symmetrically arranged cover plates (52) via a torsion spring, a through groove (53) communicating with the interior is provided on the surface of the sleeve (51), a top plate (54) is rotatably connected to the interior of the through groove (53) via a torsion spring, and an arc-shaped top rod (55) is fixedly mounted on one side of the cover plate (52) close to the top plate (54).

4. A release agent spraying device according to claim 3, Features: A bellows (56) connected to one end of the air intake pipe (15) is fixedly installed inside the sleeve (51), and one end of the bellows (56) away from the air intake pipe (15) is fixedly connected to the top plate (54).

5. A release agent spraying device according to claim 1, Features: The protection mechanism (20) comprises a multi-stage telescopic tube (21) fixedly mounted between the electric push rod (11) and the guard plate (12), wherein the multi-stage telescopic tube (21) is composed of a plurality of hollow rings that are slidably connected.

6. A release agent spraying device according to claim 5, Features: The plurality of hollow rings constituting the multi-stage telescopic tube (21) are connected in a sealing and sliding manner. A fixing frame (22) is fixedly mounted on a side of the guard plate (12) close to the spray gun (4). A baffle (23) is sealed and slidably connected inside the fixing frame (22). The fixing frame (22) and the multi-stage telescopic tube (21) are connected via an air supply pipe (24).

7. A spraying method using the release agent spraying device according to any one of claims 1 to 6, Features: The following steps are involved: S1: placing the mold (3) to be sprayed with the release agent on the conveyor belt (2), and starting the conveyor belt (2) so that the conveyor belt (2) moves the mold (3) on the spraying machine (1), and then starting the electric push rod (11) so that the electric push rod (11) moves the guard plate (12) and the rectangular frame (13) in the direction of the conveyor belt (2), so as to reach the designated position in advance; S2: After the spray gun (4) sprays the release agent, the vacuum pump (14) sucks the scattered release agent into the rectangular frame (13) through the suction pipe (15). The sucked release agent is adsorbed and purified by the activated carbon when passing through the filter frame (17) and discharged through the air injection pipe (16); S3: A portion of the gas ejected from the jet pipe (16) enters the connecting pipe (181), and the gas passes through the connecting pipe (181) and the hollow ball head (183) into the rotating pipe (182) and is ejected toward the mold (3).

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