A lost foam coating spraying device

Abstract

The utility model discloses a lost foam coating spraying device, including the shell, the inside of shell is equipped with the spraying assembly for spraying, and the bottom wall left side of shell is equipped with the collection storehouse, and the right side wall of shell is hinged with material door through the hinge, and the left side wall of shell is hinged with the supplementary door through the hinge, still include intermittent rotation mechanism, intermittent rotation mechanism: it includes gear, half gear and rotation axis, this lost foam coating spraying device, through intermittent rotation mechanism drive lost foam intermittent rotation, can guarantee the rotation speed consistency, make coating more evenly distribute on the model surface, and every position can get the moderate coating cover, thereby effectively avoid the situation that local coating is too thick or too thin, guarantee the consistency of coating thickness, avoid the situation that the rotation speed is uneven that the manual rotation lost foam in traditional spraying work causes to take place, thereby avoid causing the uneven situation of lost foam coating spraying.

Description

Technical Field

[0001] This utility model relates to the field of lost foam casting technology, specifically to a lost foam coating spraying device. Background Technology

[0002] Lost foam casting involves bonding and assembling foamed plastic models similar in size and shape to the casting into a model cluster. After brushing on a refractory coating and drying, the model is buried in dry quartz sand and vibrated to shape it. Under certain conditions, liquid metal is poured in, causing the model to vaporize and occupy the model's position. After solidification and cooling, the desired casting is formed.

[0003] Traditional spraying processes typically require workers to hold the lost foam mold and apply it manually. To ensure even coverage, the lost foam mold needs to be rotated manually. Simultaneously, workers actively and intermittently rotate the lost foam mold to guarantee comprehensive coverage, ensuring no areas are missed.

[0004] There are some problems. Manually rotating the lost foam and controlling its intermittent rotation often results in inconsistent rotation speeds, leading to uneven coating and substandard coating. To address this, we propose a lost foam coating spraying device. Utility Model Content

[0005] The technical problem this invention aims to solve is to overcome existing defects and provide a lost foam coating spraying device. By using an intermittent rotation mechanism to drive the lost foam to rotate intermittently, it can ensure a consistent rotation speed, making the coating more evenly distributed on the model surface. Each part can receive an appropriate amount of coating coverage, thereby effectively avoiding situations where the coating is too thick or too thin in some areas, ensuring the consistency of the coating thickness. This avoids the uneven rotation speed caused by manual rotation of the lost foam in traditional spraying work, thus preventing uneven coating spraying and effectively solving the problems in the background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a lost foam coating spraying device, comprising a housing, wherein the housing is provided with a spraying assembly for spraying, a collection chamber is provided on the left side of the bottom wall of the housing, a material door is hinged to the right side wall of the housing via a hinge, a replenishment door is hinged to the left side wall of the housing via a hinge, and an intermittent rotation mechanism is also included.

[0007] Intermittent rotation mechanism: It includes a gear, a half gear, and a rotating shaft. A support plate is provided on the rear side of the bottom wall of the outer shell. The right end of the front side of the support plate is rotatably connected to the gear, and the left end of the front side of the support plate is rotatably connected to the half gear. The half gear and the gear are installed together. A vertical plate is provided at the rear end of the inner shell. A rotating hole is opened in the middle of the vertical plate. A rotating stud is rotatably connected inside the rotating hole. The rear end of the rotating stud is fixedly connected to the center of the front side of the gear. A retaining plate is threaded to the front end of the rotating stud. The intermittent rotation mechanism drives the lost foam to rotate intermittently, which can ensure a consistent rotation speed and make the paint more evenly distributed on the surface of the model. Each part can get an appropriate amount of paint coverage, thereby effectively avoiding the situation where the paint is too thick or too thin in some places, ensuring the consistency of the coating thickness, and avoiding the uneven rotation speed caused by manual rotation of lost foam in traditional spraying work, thus avoiding the uneven spraying of the lost foam coating.

[0008] Furthermore, a control switch is provided on the front side of the housing, and the input terminal of the control switch is electrically connected to an external power source for stable control.

[0009] Furthermore, the intermittent rotation mechanism also includes a rotating shaft, through which the half gear and the support plate are rotatably connected.

[0010] Furthermore, a motor is mounted on the rear side of the support plate, the output shaft of the motor is fixedly connected to the rear side of the rotating shaft, and the input end of the motor is electrically connected to the output end of the control switch.

[0011] Furthermore, the intermittent rotation mechanism also includes a mounting plate, a hydraulic telescopic rod, and a limiting plate. The upper front side of the support plate is provided with a mounting plate, and the lower side of the mounting plate and the bottom wall of the support plate are respectively provided with hydraulic telescopic rods. The oil inlets of the hydraulic telescopic rods are all connected to the oil outlets of external hydraulic cylinders. Limiting plates are provided at the telescopic ends of the hydraulic telescopic rods, and the limiting plates are located on the upper and lower sides of the gear respectively.

[0012] Furthermore, the intermittent rotation mechanism also includes a transition block, which is disposed at the rear end of the outer arc surface of the rotation shaft and is located between the two limiting plates and is installed in cooperation with the limiting plates.

[0013] Furthermore, the spraying assembly includes a spraying pipe and a paint tank. The left end of the inner shell is provided with a spraying stand, the left side of the spraying stand is provided with a paint tank, the right end of the paint tank is provided with a spraying pipe, and the spraying pipe passes through the middle of the spraying stand for easy spraying.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This lost foam coating spraying device has the following advantages:

[0015] By using gears and half gears, the intermittent rotation of the lost foam is achieved, which allows the paint to be distributed more evenly on the model surface. Each part can receive an appropriate amount of paint coverage, thus effectively avoiding situations where the paint is too thick or too thin in some areas. This ensures the consistency of the coating thickness and avoids the uneven rotation speed caused by manual rotation of the lost foam in traditional spraying work, thereby preventing uneven spraying of the lost foam coating. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of the right side of this utility model;

[0017] Figure 2 This is a structural schematic diagram of the right side cross-section of this utility model;

[0018] Figure 3 This is a schematic diagram of the intermittent rotation mechanism of this utility model;

[0019] Figure 4 This is a partial cross-sectional structural schematic diagram of the intermittent rotation mechanism of this utility model;

[0020] Figure 5 This is a schematic diagram of the front side of the present invention;

[0021] Figure 6 This is a schematic diagram of the front side cross-section of this utility model.

[0022] In the diagram: 1. Outer shell; 2. Intermittent rotation mechanism; 21. Gear; 22. Half gear; 23. Transition block; 24. Mounting plate; 25. Hydraulic telescopic rod; 26. Limiting plate; 27. Rotating shaft; 3. Support plate; 4. Rotating stud; 5. Support plate; 6. Supplementary door; 7. Control switch; 8. Motor; 9. Paint chamber; 10. Vertical plate; 11. Spraying vertical plate; 12. Spraying pipe; 13. Collection chamber; 14. Material door. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-6This embodiment provides a technical solution: a lost foam coating spraying device, including a housing 1, with a spraying assembly inside the housing 1, the spraying assembly including a spraying pipe 12 and a coating chamber 9, a spraying upright plate 11 at the left end of the interior of the housing 1, a coating chamber 9 on the left side of the spraying upright plate 11, a spraying pipe 12 at the right end of the coating chamber 9, the spraying pipe 12 penetrating the middle of the spraying upright plate 11, a collection chamber 13 on the left side of the bottom wall of the housing 1, a material door 14 hinged to the right side of the housing 1, and a collection chamber 13 on the left side of the bottom wall of the housing 1. The paint tank 9 is hinged to a replenishment door 6. The paint pump installed by the worker inside the paint tank 9 operates, spraying the paint inside the paint tank 9 through the spray pipe 12 onto the surface of the lost foam. Excess paint is sprayed into the collection tank 13 and waits for the worker to collect it. After a period of time, the lost foam painting is completed and collected by the worker. At this time, the worker can open the replenishment door 6 and replenish the paint tank 9 through the pipe. The front side of the paint housing 1 is equipped with a control switch 7. The input end of the control switch 7 is electrically connected to an external power source and also includes an intermittent rotation mechanism 2.

[0025] Intermittent rotation mechanism 2: It includes a gear 21, a half gear 22, and a rotating shaft 27. A support plate 3 is provided on the rear side of the bottom wall of the outer casing 1. The gear 21 is rotatably connected to the right end of the front side of the support plate 3 (the gear 21 is rotatably connected to the front side of the support plate 3 through a rotating shaft). The half gear 22 is rotatably connected to the left end of the front side of the support plate 3. The intermittent rotation mechanism 2 also includes a rotating shaft 27. The half gear 22 is rotatably connected to the support plate 3 through the rotating shaft 27. A motor 8 is installed on the rear side of the support plate 3. The output shaft of the motor 8 is fixedly connected to the rear side of the rotating shaft 27. The input end of the motor 8 is electrically connected to the output end of the control switch 7. The intermittent rotation mechanism 2 also includes a mounting plate 24, a hydraulic telescopic rod 25, and a limit plate 26. The upper end of the front side of the support plate 3 is provided with... The system includes a mounting plate 24, with hydraulic telescopic rods 25 mounted on the lower side of the mounting plate 24 and the bottom wall of the support plate 3. The oil inlets of the hydraulic telescopic rods 25 are connected to the oil outlets of external hydraulic cylinders. Limiting plates 26 are located at the telescopic ends of the hydraulic telescopic rods 25, positioned on the upper and lower sides of the gear 21. The intermittent rotation mechanism 2 also includes a transition block 23, which is located at the rear end of the outer arc surface of the rotating shaft 27 (the center point between the edges of any two parallel surfaces of the transition block 23 coincides with the central axis of the rotating shaft 27, and the distance from the edges of any two parallel surfaces of the transition block 23 to the central axis of the rotating shaft 27 is less than the distance between the rightmost point of the outer arc surface of the rotating shaft 27 and the leftmost point of the outer arc surface of the rotating shaft 27). The transition block 23 is located between the two limiting plates. The gear 26 is installed between and in conjunction with the limiting plate 26 (in the initial state, the two limiting plates 26 respectively contact the gear 21 and hold the gear 21, while the length of the transition block 23 is greater than the distance between the two limiting plates 26 in the initial state). The half gear 22 is installed in conjunction with the gear 21. The rear end of the inner shell 1 is provided with a vertical plate 10. A rotating hole is opened in the middle of the vertical plate 10. A rotating stud 4 is rotatably connected inside the rotating hole. The rear end of the rotating stud 4 is fixedly connected to the center of the front side of the gear 21. The front end of the rotating stud 4 is threadedly connected to a holding piece 5 (the outer arc surface of the rotating stud 4 has a holding block). First, the worker opens the material door 14, puts the lost foam to be sprayed on the rotating stud 4, then attaches the rear end of the lost foam to the front of the holding block, and then the worker... Tighten the clamping plate 5 onto the rotating stud 4, then tighten the clamping plate 5 to secure the lost foam casting. The worker then closes the material gate 14 and operates the motor 8 via the control switch 7. The output shaft of the motor 8 drives the half-gear 22 to rotate via the rotating shaft 27. Initially, the toothed part of the half-gear 22 meshes with the gear 21. Under this meshing action, the gear 21 rotates synchronously. When the teeth of the half-gear 22 rotate away from the gear 21, the gear 21 stops rotating. During this process, the transition block 23 rotates with the rotating shaft 27. As the half-gear 22 gradually meshes with the gear 21, the transition block 23 gradually contacts and presses against the two limit plates 26. At this time, the telescopic ends of the two hydraulic telescopic rods 25 are contracted by the force.As the limiting plate 26 moves away from gear 1, gear 1 can rotate. With the continuous rotation of the rotating shaft 27, the edge of the long side of the transition block 23 gradually becomes parallel to the ground, and the teeth of the half gear 22 gradually move away from the teeth of gear 21. When the half gear 22 rotates until its teeth are completely disengaged from gear 21, the long side of the transition block 23 will approach parallel to the ground. At this point, the compression of the limiting plate 26 stops. Then, the automatic reset mechanism inside the two hydraulic telescopic rods 25 causes the telescopic ends of the two hydraulic telescopic rods 25 to drive the two limiting plates 26 to clamp gear 21 again. Gear 21 remains in its current position. The repeated operation of the above actions achieves the intermittent rotation of gear 21, which in turn drives the intermittent rotation of the lost foam casting clamped on the rotating stud 4. This intermittent rotation of the lost foam casting allows for a more even distribution of paint on the model surface, ensuring that each area receives an appropriate amount of paint coverage. This effectively avoids situations where the paint is too thick or too thin in certain areas, guaranteeing a consistent coating thickness. It also avoids the uneven rotation speeds that occur with manual rotation of the lost foam casting in traditional spraying processes, thus preventing uneven coating application.

[0026] The working principle of the lost foam coating spraying device provided by this utility model is as follows: First, the worker opens the material door 14, and places the lost foam to be sprayed onto the rotating stud 4. Then, the rear end of the lost foam is attached to the front of the holding block. Subsequently, the worker screws the holding plate 5 onto the rotating stud 4 and tightens the holding plate 5 to secure the lost foam. Then, the worker closes the material door 14. Next, the worker operates the motor 8 by controlling the control switch 7. The output shaft of the motor 8 drives the half gear 22 to rotate through the rotating shaft 27. Initially, the toothed part of the half gear 22 meshes with the gear 21. At this time, under the meshing action, the gear 21 rotates synchronously. When the teeth of the half gear 22 rotate away from the gear 21, the gear 21 stops rotating. During this process, the transition block 23 rotates with the rotation of the rotating shaft 27. As the half gear 22 rotates and gradually meshes with the gear 21, the transition block 23 will gradually contact and squeeze the two limiting plates 26. At this time, the telescopic ends of the two hydraulic telescopic rods 25 are contracted by the force, and the limiting plates 26 move away from the gear 1. Wheel 1 can rotate. As the rotating shaft 27 continues to rotate, the edge of the long side of the transition block 23 gradually becomes parallel to the ground, and the teeth of the half gear 22 gradually move away from the teeth of the gear 21. When the half gear 22 rotates until its teeth are completely disengaged from the gear 21, the long side of the transition block 23 will approach parallel to the ground. At this time, the pressure on the limiting plate 26 stops. Then, the automatic reset mechanism inside the two hydraulic telescopic rods 25 causes the telescopic ends of the two hydraulic telescopic rods 25 to drive the two limiting plates 26 to clamp the gear 21 again. The gear 21 remains in its current position. The above actions are repeated to achieve the effect of intermittent rotation of the gear 21. At the same time, the lost foam clamped on the rotating stud 4 rotates intermittently. Meanwhile, the paint pump installed by the worker inside the paint tank 9 operates, spraying the paint inside the paint tank 9 through the spray pipe 12 onto the surface of the lost foam. Excess paint sprayed falls into the collection tank 13 and waits for the worker to collect it. After a period of time, the lost foam spraying is completed and collected by the worker. At this time, the worker can open the replenishment door 6 and replenish the paint into the paint tank 9 through the pipe.

[0027] It is worth noting that the hydraulic telescopic rod 25 disclosed in the above embodiments can be a hydraulic telescopic rod with a built-in reset mechanism, the motor 8 can be model DM100033P2-80, and the control switch 7 is provided with a control button corresponding to the motor 8 and used to control its switch.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A lost foam coating spraying device, comprising a housing (1), wherein the interior of the housing (1) is provided with a spraying assembly for spraying, a collection chamber (13) is provided on the left side of the bottom wall of the housing (1), a material door (14) is hinged to the right side wall of the housing (1) via a hinge, and a replenishment door (6) is hinged to the left side wall of the housing (1), characterized in that: It also includes an intermittent rotation mechanism (2); Intermittent rotation mechanism (2): It includes a gear (21), a half gear (22) and a rotating shaft (27). A support plate (3) is provided on the rear side of the bottom wall of the outer shell (1). The right end of the front side of the support plate (3) is rotatably connected to the gear (21), and the left end of the front side of the support plate (3) is rotatably connected to the half gear (22). The half gear (22) is installed in conjunction with the gear (21). The rear end of the inner shell (1) is provided with a vertical plate (10). A rotating hole is opened in the middle of the vertical plate (10). A rotating stud (4) is rotatably connected inside the rotating hole. The rear end of the rotating stud (4) is fixedly connected to the center of the front side of the gear (21). A retaining plate (5) is threadedly connected to the front end of the rotating stud (4).

2. The lost foam coating spraying device according to claim 1, characterized in that: The front side of the housing (1) is provided with a control switch (7), and the input end of the control switch (7) is electrically connected to an external power source.

3. The lost foam coating spraying device according to claim 2, characterized in that: The intermittent rotation mechanism (2) also includes a rotating shaft (27), and the half gear (22) and the support plate (3) are rotatably connected through the rotating shaft (27).

4. The lost foam coating spraying device according to claim 3, characterized in that: A motor (8) is installed on the rear side of the support plate (3). The output shaft of the motor (8) is fixedly connected to the rear side of the rotating shaft (27). The input end of the motor (8) is electrically connected to the output end of the control switch (7).

5. The lost foam coating spraying device according to claim 3, characterized in that: The intermittent rotation mechanism (2) also includes a mounting plate (24), a hydraulic telescopic rod (25), and a limiting plate (26). The upper front side of the support plate (3) is provided with a mounting plate (24). The lower side of the mounting plate (24) and the bottom wall of the support plate (3) are respectively provided with hydraulic telescopic rods (25). The oil inlets of the hydraulic telescopic rods (25) are connected to the oil outlets of the external hydraulic cylinders. The telescopic ends of the hydraulic telescopic rods (25) are provided with limiting plates (26). The limiting plates (26) are located on the upper and lower sides of the gear (21).

6. The lost foam coating spraying device according to claim 5, characterized in that: The intermittent rotation mechanism (2) further includes a transition block (23), which is disposed at the rear end of the outer arc surface of the rotation shaft (27). The transition block (23) is located between two limiting plates (26) and is installed in cooperation with the limiting plates (26).

7. The lost foam coating spraying device according to claim 1, characterized in that: The spraying assembly includes a spraying pipe (12) and a paint tank (9). The left side of the inner shell (1) is provided with a spraying upright plate (11), the left side of the spraying upright plate (11) is provided with a paint tank (9), the right side of the paint tank (9) is provided with a spraying pipe (12), and the spraying pipe (12) passes through the middle of the spraying upright plate (11).

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