A paint spraying device for lost foam castings

Abstract

The application discloses a paint spraying device for lost foam casting and belongs to the technical field of lost foam, which comprises a bottom plate, a storage box and a filter box are fixedly installed at the top end of the bottom plate, a filter plate is fixedly installed in the filter box, an automatic cleaning mechanism is arranged in the filter plate, the automatic cleaning mechanism comprises an electric push rod, the electric push rod is fixedly installed on the inner wall of the filter box and located above the bottom plate, a connecting block is fixedly installed at the telescopic end of the electric push rod, a push plate is fixedly installed at the bottom of the connecting block, the push plate is slidably connected with the top surface of the filter plate, a top plate is fixedly installed at the top end of the connecting block, a through groove is formed in one side of the bottom plate, and a collecting box is fixedly installed at the side of the bottom plate; the automatic cleaning mechanism can push the impurities filtered out by the filter plate into the collecting box for cleaning without stopping the device, and the spraying operation of the spraying mechanism can be continuously performed.

Description

Technical Field

[0001] This application relates to the field of lost foam casting technology, and in particular to a coating spraying device for lost foam castings. Background Technology

[0002] A published patent document with announcement number CN222112211U discloses a lost foam coating spraying device, relating to the field of lost foam coating technology. The device includes a base and a storage tank, a booster pump, a pressure tank, and a spray gun. A geared motor is mounted on the top cover of the storage tank, and the output shaft of the geared motor is movably connected to a rotating rod and a stirring paddle. The storage tank is connected to the booster pump via a feed pipe, and a filter is installed at the feed pipe. The booster pump is connected to the pressure tank via a delivery pipe, and the pressure tank is connected to the spray gun via a telescopic hose. The outlet end of the spray gun is threadedly connected to an atomizing nozzle. This lost foam coating spraying device continuously stirs the coating to prevent sedimentation and filters the extracted coating. The booster pump, in conjunction with the pressure tank, pressurizes the coating before atomizing it through the atomizing nozzle, resulting in more uniform coating, better effect, and improved spraying efficiency.

[0003] In practical use, although the flange connection method makes the filter device easy to disassemble and assemble, the disassembly and assembly of the filter device requires machine shutdown, which affects the continuity of production. Therefore, this application provides a coating spraying device for lost foam castings. Utility Model Content

[0004] In view of the shortcomings of the prior art, this application provides a coating spraying device for lost foam castings, which overcomes the shortcomings of the prior art and aims to solve the problem that, although the flange connection method makes the filter device easy to disassemble and assemble, the disassembly and assembly of the filter device requires machine shutdown, which affects the continuity of production.

[0005] To achieve the above objectives, this application provides the following technical solution: a coating spraying device for lost foam castings, comprising a base plate, a storage box and a filter box fixedly installed at the top of the base plate, a filter plate fixedly installed inside the filter box, an automatic cleaning mechanism provided inside the filter plate, the automatic cleaning mechanism comprising an electric push rod, the electric push rod fixedly installed on the inner wall of the filter box above the base plate, a connecting block fixedly installed at the telescopic end of the electric push rod, a push plate fixedly installed at the bottom of the connecting block, the push plate being slidably connected to the top surface of the filter plate, a top plate fixedly installed at the top of the connecting block, a through groove opened on one side of the filter box, a collection box fixedly installed on one side of the filter box, the filter box and the collection box being connected through the through groove, a rectangular plate fixedly installed at the top of the collection box, two sets of springs fixedly installed on one side of the rectangular plate, a blocking plate installed at the telescopic end of the two sets of springs, the blocking plate being movably engaged with the through groove, and a spraying mechanism installed at the bottom of the filter box.

[0006] By adopting the above technical solution, the paint in the storage tank is fed into the filter box, where it is filtered by the filter plate. Periodically activating the electric push rod moves the connecting block, push plate, and top plate towards the through-slot. The push plate pushes the impurities remaining after filtration above the filter plate into the through-slot. When the top plate contacts the blocking plate, the electric push rod continues to operate, causing the rectangular plate compression spring to contract, disengaging the blocking plate from the through-slot. Then, the push plate pushes the impurities uniformly from the through-slot into the collection box. The electric push rod then contracts, resetting the through-slot, and the blocking plate resets under the elasticity of the spring, sealing the through-slot. An automatic cleaning mechanism can push the impurities filtered by the filter plate into the collection box for cleaning without stopping the machine, facilitating a more continuous spraying operation.

[0007] As a preferred technical solution of this application, a communication mechanism is provided between the storage tank and the filter tank. The communication mechanism includes a liquid pump, which is fixedly installed on the top of the base plate and located between the storage tank and the filter tank. The liquid pump is connected to both the storage tank and the filter tank by a connecting pipe.

[0008] By adopting the above technical solution, the coating in the storage tank is automatically transported to the filter box for filtration by a liquid pump using two sets of connecting pipes, thereby improving the filtration efficiency.

[0009] As a preferred technical solution of this application, the spraying mechanism includes a second liquid pump, which is fixedly installed on the top of the base plate and located on the side of the filter box away from the first liquid pump. The extraction end of the second liquid pump is connected to the filter box, and a hose is installed at the discharge end of the second liquid pump. A spray head is fixedly installed at the end of the hose away from the second liquid pump.

[0010] By adopting the above technical solution, the filtered paint is delivered to the spray head through a hose by the liquid pump, and the ease of operation at the correct angle improves its practicality.

[0011] As a preferred technical solution of this application, the storage box is provided with a stirring mechanism, the stirring mechanism includes a motor, the motor is fixedly installed on the top of the storage box, and the driving end of the motor passes through the top of the storage box and is fixedly installed with a stirring shaft.

[0012] By adopting the above technical solution, the coating in the storage tank is stirred by driving the stirring shaft with a motor, which helps to maintain the uniformity of the coating in the storage tank and improves the uniformity of spraying on lost foam castings.

[0013] As a preferred technical solution of this application, the spring is provided with a telescopic guide rod inside.

[0014] By adopting the above technical solution, the telescopic guide rod guides the extension and retraction of the spring, which helps to extend the service life of the spring.

[0015] As a preferred technical solution of this application, two sets of stirring blades are fixedly installed on the outer surface of the stirring shaft, and several sets of guide holes are opened inside the stirring blades.

[0016] By adopting the above technical solution, the stirring blades can be used to increase the stirring range of the coating, and the guide holes can be used to increase the fluidity of the coating, thereby improving the stirring effect.

[0017] As a preferred technical solution of this application, the bottom of the collection box is slidably connected to a collection drawer, and a handle is fixedly installed on the outer surface of the collection drawer.

[0018] By adopting the above technical solution, the collection pump is used to collect the filtered impurities, and the handle makes it easy to pull out the collection pump for cleaning, which improves the practicality of cleaning the internally collected impurities in a unified manner.

[0019] As a preferred technical solution of this application, a collection tank is fixedly installed at the bottom of the collection tank.

[0020] By adopting the above technical solution, the inclined plate prevents impurities from accumulating on one side of the collection tank, thus improving its practicality during use.

[0021] The beneficial effects of this application are: 1. After the paint in the storage tank is fed into the filter box, it is filtered by the filter plate. By periodically activating the electric push rod, the electric push rod pushes the connecting block, push plate, and top plate towards the through groove. The push plate pushes the impurities remaining after filtration above the filter plate into the through groove. When the top plate contacts the blocking plate, the electric push rod continues to work, causing the rectangular plate compression spring to contract, causing the blocking plate to disengage from the through groove. Then, the push plate pushes the impurities from the through groove into the collection box. Then, the electric push rod contracts, causing the through groove to reset. The blocking plate resets under the elastic action of the spring, sealing the through groove. The automatic cleaning mechanism can push the impurities filtered by the filter plate into the collection box for cleaning without stopping the machine, which is beneficial for a more continuous spraying operation of the spraying mechanism.

[0022] 2. The coating material in the storage tank is automatically transported to the filter box for filtration by a liquid pump using two sets of connecting pipes, which improves the filtration efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a cross-sectional structural diagram of this application; Figure 3 This is a partial structural diagram of this application; Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle.

[0024] In the diagram: 1. Base plate; 2. Storage box; 3. Filter box; 4. Connecting mechanism; 401. Liquid pump one; 402. Connecting pipe; 5. Filter plate; 6. Automatic cleaning mechanism; 601. Electric push rod; 602. Connecting block; 603. Push plate; 604. Top plate; 605. Through groove; 606. Collection box; 607. Rectangular plate; 608. Spring; 609. Blocking plate; 7. Spraying mechanism; 701. Liquid pump two; 702. Hose; 703. Spray nozzle; 8. Stirring mechanism; 801. Motor; 802. Stirring shaft; 803. Stirring blade; 9. Telescopic guide rod; 10. Guide hole; 11. Collection pump; 12. Inclined plate. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] Reference Figure 1-4A coating spraying device for lost foam castings includes a base plate 1. A storage box 2 and a filter box 3 are fixedly installed on the top of the base plate 1. A filter plate 5 is fixedly installed inside the filter box 3. An automatic cleaning mechanism 6 is provided inside the filter plate 5. The automatic cleaning mechanism 6 includes an electric push rod 601, which is fixedly installed on the inner wall of the filter box 3 above the base plate 1. A connecting block 602 is fixedly installed at the telescopic end of the electric push rod 601. A push plate 603 is fixedly installed at the bottom of the connecting block 602 and is slidably connected to the top surface of the filter plate 5. A top plate 604 is fixedly installed at the top of the connecting block 602. A through groove 605 is opened on one side of the filter box 3, and a collection box 606 is fixedly installed on one side of the filter box 3. The filter box 3 and the collection box 606 are connected by a through groove 605. A rectangular plate 607 is fixedly installed on the top of the collection box 606. Two sets of springs 608 are fixedly installed on one side of the rectangular plate 607. A blocking plate 609 is installed on the telescopic end of the two sets of springs 608. The blocking plate 609 is movably engaged with the through groove 605. A spraying mechanism 7 is installed at the bottom of the filter box 3. The spraying mechanism 7 includes a second liquid pump 701. The second liquid pump 701 is fixedly installed on the top of the base plate 1. The second liquid pump 701 is located on the side of the filter box 3 away from the first liquid pump 401. The extraction end of the second liquid pump 701 is connected to the filter box 3. A hose 702 is installed at the discharge end of the second liquid pump 701. A nozzle 703 is fixedly installed at the end of the hose 702 away from the second liquid pump 701.

[0027] After the paint in storage tank 2 is fed into filter tank 3, it is filtered by filter plate 5. By periodically activating electric push rod 601, the electric push rod 601 pushes connecting block 602, push plate 603, and top plate 604 towards through groove 605. Push plate 603 pushes the impurities remaining above filter plate 5 into through groove 605. When top plate 604 contacts block plate 609, electric push rod 601 continues to work, causing rectangular plate 607 to compress spring 608 and retract, causing block plate 609 to disengage from through groove 605. Then, push plate 603 pushes the impurities out of through groove 605. The impurities are collected in the collection box 606. Then, the electric push rod 601 retracts, causing the through groove 605 to reset. The block plate 609 resets under the elastic action of the spring 608, sealing the through groove 605. The automatic cleaning mechanism 6 can push the impurities filtered by the filter plate 5 into the collection box 606 for unified collection without stopping the machine, which is conducive to a more continuous spraying operation of the spraying mechanism 7. The filtered paint is transported to the spray head 703 for spraying through the hose 702 by the liquid pump 701. The angle of 703 can be flexibly operated through 702, which improves the practicality during use.

[0028] Reference Figure 1-3A connecting mechanism 4 connects the storage tank 2 and the filter tank 3. The connecting mechanism 4 includes a liquid pump 401, which is fixedly installed on the top of the base plate 1 and located between the storage tank 2 and the filter tank 3. The liquid pump 401 is connected to both the storage tank 2 and the filter tank 3 by a connecting pipe 402. The storage tank 2 is equipped with a stirring mechanism 8, which includes a motor 801. The motor 801 is fixedly installed on the top of the storage tank 2, and the driving end of the motor 801 passes through the top of the storage tank 2 and is fixedly installed with a stirring shaft 802. The coating material in the storage tank 2 is automatically transported to the filter tank 3 for filtration by the liquid pump 401 through two sets of connecting pipes 402, which improves the filtration efficiency. The stirring shaft 802 driven by the motor 801 is rotated to stir the coating material in the storage tank 2, which helps to maintain the uniformity of the coating material in the storage tank 2 and improves the uniformity of spraying on the lost foam casting.

[0029] Reference Figure 2-4 The spring 608 has a telescopic guide rod 9 inside; the bottom of the collection box 606 is slidably connected to a collection tube 11, and a handle is fixedly installed on the outer surface of the collection tube 11; the telescopic guide rod 9 guides the extension and retraction of the spring 608, which helps to extend the service life of the spring 608; the collection tube 11 is used to collect the filtered impurities, and the handle makes it easy to pull out the collection tube 11 for cleaning, which improves the practicality of cleaning the impurities collected in 606 in a unified manner.

[0030] Reference Figure 1-3 Two sets of stirring blades 803 are fixedly installed on the outer surface of the stirring shaft 802. Several sets of guide holes 10 are opened inside the stirring blades 803. An inclined plate 12 is fixedly installed at the bottom of the collecting pump 11. The stirring blades 803 increase the stirring range of the coating, and the guide holes 10 can increase the fluidity of the coating, thus improving the stirring effect. The inclined plate 12 prevents impurities from accumulating on one side of the collecting pump 11, thus improving its practicality during use.

[0031] Working principle: After the paint in the storage tank 2 is sent into the filter tank 3, it is filtered by the filter plate 5. By periodically activating the electric push rod 601, the electric push rod 601 pushes the connecting block 602, push plate 603, and top plate 604 towards the through groove 605. The push plate 603 pushes the impurities remaining after filtration above the filter plate 5 into the through groove 605. When the top plate 604 contacts the blocking plate 609, the electric push rod 601 continues to work, causing the rectangular plate 607 to compress the spring 608 and retract it, causing the blocking plate 609 to disengage from the through groove 605. Then, the push plate 603 pushes the impurities from the through groove 605 into the collection tank 606. Then, the electric push rod 601 retracts, causing the through groove 605 to reset. The blocking plate 609 resets under the elastic action of the spring 608, sealing the through groove 605. The paint in the storage tank 2 is automatically transported to the filter tank 3 for filtration by the liquid pump 401 through two sets of connecting pipes 402.

[0032] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A coating spraying device for lost foam castings, comprising a base plate (1), characterized in that, A storage box (2) and a filter box (3) are fixedly installed at the top of the base plate (1). A filter plate (5) is fixedly installed inside the filter box (3). An automatic cleaning mechanism (6) is provided inside the filter plate (5). The automatic cleaning mechanism (6) includes an electric push rod (601). The electric push rod (601) is fixedly installed on the inner wall of the filter box (3) above the base plate (1). A connecting block (602) is fixedly installed at the telescopic end of the electric push rod (601). A push plate (603) is fixedly installed at the bottom of the connecting block (602). The push plate (603) is slidably connected to the top surface of the filter plate (5). A top plate (604) is fixedly installed at the top of (602). A through groove (605) is opened on one side of the filter box (3). A collection box (606) is fixedly installed on one side of the filter box (3). The filter box (3) and the collection box (606) are connected through the through groove (605). A rectangular plate (607) is fixedly installed at the top of the collection box (606). Two sets of springs (608) are fixedly installed on one side of the rectangular plate (607). A blocking plate (609) is installed at the telescopic end of the two sets of springs (608). The blocking plate (609) is movably engaged with the through groove (605). A spraying mechanism (7) is installed at the bottom of the filter box (3).

2. The paint spraying device for lost foam castings according to claim 1, characterized in that, A connecting mechanism (4) is connected between the storage tank (2) and the filter tank (3). The connecting mechanism (4) includes a liquid pump (401), which is fixedly installed on the top of the base plate (1) and located between the storage tank (2) and the filter tank (3). A connecting pipe (402) is connected between the liquid pump (401) and both the storage tank (2) and the filter tank (3).

3. A coating spraying device for lost foam castings according to claim 2, characterized in that, The spraying mechanism (7) includes a second liquid pump (701), which is fixedly installed on the top of the base plate (1) and located on the side of the filter box (3) away from the first liquid pump (401). The extraction end of the second liquid pump (701) is connected to the filter box (3), and a hose (702) is installed at the discharge end of the second liquid pump (701). A nozzle (703) is fixedly installed at the end of the hose (702) away from the second liquid pump (701).

4. A coating spraying device for lost foam castings according to claim 1, characterized in that, The storage tank (2) is equipped with a stirring mechanism (8), which includes a motor (801). The motor (801) is fixedly installed on the top of the storage tank (2), and the driving end of the motor (801) passes through the top of the storage tank (2) and is fixedly installed with a stirring shaft (802).

5. A coating spraying device for lost foam castings according to claim 1, characterized in that, The spring (608) has a telescopic guide rod (9) inside.

6. A coating spraying device for lost foam castings according to claim 4, characterized in that, Two sets of stirring blades (803) are fixedly installed on the outer surface of the stirring shaft (802), and several sets of guide holes (10) are opened inside the stirring blades (803).

7. A coating spraying device for lost foam castings according to claim 1, characterized in that, The bottom of the collection box (606) is slidably connected to a collection tube (11), and a handle is fixedly installed on the outer surface of the collection tube (11).

8. A coating spraying device for lost foam castings according to claim 7, characterized in that, An inclined plate (12) is fixedly installed at the bottom of the collecting pump (11).

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