A motor housing surface spraying device

Abstract

The utility model discloses a motor shell surface spraying equipment belongs to the technical field of coating equipment, including spraying room, clamping mechanism, nozzle and be provided with the stirring mechanism of storage tank, and stirring mechanism includes first servo motor, fixed long rod, spiral lifting rod, bidirectional screw rod, sliding block and turn -to -plate column, and first servo motor drive fixed long rod rotates, and fixed long rod one way passes through bevel gear set and drives spiral lifting rod to realize longitudinal lifting and stirs, and another way passes through worm and worm mechanism and drives bidirectional screw rod, makes sliding block and turn -to -plate column reciprocating movement and realizes horizontal cutting and stirs. The utility model discloses through the three -dimensional cross -section stirring of longitudinal and horizontal combination, solved the problem that the composition is uneven because of the gravity settlement of paint, has guaranteed the evenness of paint mixing and the consistency of viscosity, thereby has improved the final spraying quality significantly.

Description

Technical Field

[0001] This utility model relates to the field of coating equipment technology, and in particular to a spray coating equipment for the surface of an electric motor housing. Background Technology

[0002] As a key protective component of the motor, the motor housing requires surface coating to achieve corrosion resistance, insulation, and aesthetics. In automated spraying production, spraying equipment typically includes a tank for storing paint to ensure the continuity of spraying operations. The paint used in industrial production is a complex suspension mixture containing various components of different densities and specific gravities, such as resins, pigments, fillers, additives, and solvents. During static or long-term use, due to gravity, the denser solid components such as pigments and fillers will inevitably gradually settle, forming a thick layer of sediment at the bottom of the tank, while the upper layer becomes a thinner liquid, resulting in obvious stratification of the paint.

[0003] Existing spraying equipment is equipped with a stirring device to agitate the paint. However, many existing stirring devices have relatively simple structures, such as using a single-shaft rotating agitator. Although this stirring method can play a certain role in mixing the paint in the middle of the tank, it has very limited ability to stir and lift the sediment that has hardened at the bottom and corners of the tank. It is difficult to effectively redistribute the heavy components at the bottom into the paint throughout the tank, resulting in an unsatisfactory overall stirring effect. When using such poorly stirred paint for spraying, the composition of the paint drawn from the tank will change over time, leading to quality defects such as uneven color, different gloss, and reduced adhesion on the coating surface of the motor housing. This seriously affects the product's pass rate and consistency.

[0004] Therefore, this utility model proposes a motor housing surface spraying device to overcome the shortcomings of the prior art. Utility Model Content

[0005] In view of the problems in the existing motor housing surface spraying equipment, such as the simple structure of the stirring device, which cannot effectively stir up the bottom sediment, resulting in uneven paint composition and thus affecting the final spraying quality, this utility model aims to provide a motor housing surface spraying equipment with an improved structure that can realize three-dimensional cross stirring of paint.

[0006] This utility model provides a spraying device for the surface of an electric motor housing, including: a spray booth, a clamping mechanism, a nozzle disposed in the spray booth, and a stirring mechanism including a storage tank, and also includes a first servo motor, a fixed long rod, a spiral lifting rod, a first bevel gear, a second bevel gear, a worm gear, a bidirectional lead screw, a worm wheel, a slider, and a rotating column.

[0007] The mixing mechanism integrates both longitudinal and transverse mixing components through a sophisticated transmission system, forming a three-dimensional cross-mixing structure that distinguishes it from existing technologies.

[0008] Furthermore, the first servo motor, fixed long rod, spiral lifting rod, first bevel gear, second bevel gear, worm, bidirectional lead screw, worm wheel, slider, and rotating plate column are combined in the following manner: the output end of the first servo motor is connected to the horizontally set fixed long rod to provide power; the fixed long rod is fixed with the second bevel gear and the worm; the second bevel gear meshes with the first bevel gear at the top of the vertically set spiral lifting rod to convert the horizontal rotation of the fixed long rod into the vertical rotation of the spiral lifting rod, thus achieving longitudinal stirring; at the same time, the worm meshes with the worm wheel on the bidirectional lead screw to drive the bidirectional lead screw to rotate; and the slider threaded onto the bidirectional lead screw drives the rotating plate column below to perform reciprocating linear motion, thus achieving transverse stirring.

[0009] Preferably, to ensure the operational stability of the transverse mixing assembly, the mixing mechanism also includes a cross-shaped hollow plate, with a bidirectional lead screw rotatably disposed inside the cross-shaped hollow plate. Meanwhile, a groove is provided on the top of the storage box to guide the movement of the slider, and the slider is slidably disposed within the groove.

[0010] Preferably, the clamping mechanism includes a support plate serving as a mounting base and a second servo motor mounted on the bottom of the support plate. The output end of the second servo motor is connected to a rotating plate for driving the clamping action.

[0011] Preferably, in order to convert the rotational motion of the second servo motor into the linear motion of the clamping component, the clamping mechanism further includes two fixed long columns vertically fixed to the support plate, two sliding plates respectively slidably sleeved on the two fixed long columns, and two pull rods. One end of each pull rod is rotatably connected to the rotating plate, and the other end is rotatably connected to the corresponding sliding plate, forming a linkage transmission mechanism.

[0012] Preferably, in order to achieve internal support fixation of the motor housing, the clamping mechanism also includes two T-shaped plates, each T-shaped plate being fixedly connected to the top of the corresponding sliding plate. The T-shaped plates press against the inner wall of the motor housing from the inside out, thereby achieving a firm clamping without obstructing the outer surface.

[0013] Preferably, in order to achieve multi-angle three-dimensional spraying, the nozzle specifically includes a first nozzle set on the top of the spray booth and a second nozzle set on the side wall of the spray booth. Correspondingly, a first water pump and a second water pump are configured. The inlet ends of the first water pump and the second water pump are both connected to the storage tank, and the outlet ends are respectively connected to the first nozzle and the second nozzle to realize the delivery and atomization of paint.

[0014] Preferably, in order to realize the rotation of the workpiece during the spraying process, the equipment also includes a hollow long plate, a third servo motor and a grooved ring. The entire clamping mechanism is supported by the grooved ring and is set as a whole in the hollow long plate. The third servo motor is used to drive the grooved ring to rotate around its central axis, thereby driving the motor housing to rotate synchronously.

[0015] Preferably, to further enhance the effect of longitudinal stirring, two second bevel gears can be spaced apart on the fixed long rod, each second bevel gear meshing with a corresponding first bevel gear, and the bottom end of each first bevel gear is connected to a spiral lifting rod, forming multiple sets of parallel longitudinal stirring units.

[0016] This utility model has the following beneficial effects:

[0017] 1. This utility model solves the problems of paint layering and insufficient mixing caused by gravity settling in the prior art by setting up a three-dimensional cross stirring mechanism that combines longitudinal spiral lifting and transverse reciprocating cutting. It achieves uniform mixing of paint components and consistent viscosity, thereby ensuring the quality of spraying from the source.

[0018] 2. This utility model solves the problem of blind spots in spraying caused by the clamps blocking the workpiece when using external clamps to fix the workpiece in the prior art by setting a clamping mechanism that expands from the inside to the outside and presses against the inner wall of the motor housing. It realizes that the entire outer surface of the motor housing is fully exposed during the spraying process. Combined with the rotary spraying system, it can complete uniform and comprehensive spraying without dead angles in one go, which significantly improves the spraying efficiency and yield.

[0019] 3. This utility model solves the problems of independent processes, poor connection, and low overall automation in existing spraying equipment by integrating and automating functional modules such as internal support clamping, three-dimensional stirring, and rotary spraying. It achieves a compact structure, efficient and reliable operation, and realizes fully automated operation from workpiece fixing to spraying completion, effectively reducing labor costs and improving production efficiency. Attached Figure Description

[0020] Figure 1 This is a front view of a motor housing surface spraying device proposed in this utility model;

[0021] Figure 2 This is a side view of a motor housing surface spraying device proposed in this utility model;

[0022] Figure 3 This is a partial structural exploded view of a motor housing surface spraying device proposed in this utility model;

[0023] Figure 4 This is a partial structural diagram of a motor housing surface spraying device proposed in this utility model;

[0024] Figure 5 This is an exploded view of the clamping mechanism of a motor housing surface spraying device proposed in this utility model;

[0025] Figure 6 An exploded view of the clamping mechanism of a motor housing surface spraying device proposed in this utility model.

[0026] Legend:

[0027] 1. Spray booth; 2. Mixing mechanism; 201. Storage bin; 202. Spiral lifting rod; 203. Rotating plate column; 204. First bevel gear; 205. Cross-shaped hollow plate; 206. Worm gear; 207. Fixed long rod; 208. First servo motor; 209. Slider; 210. Worm wheel; 211. Two-way lead screw; 212. Second bevel gear; 3. Clamping mechanism; 301. Support plate; 302. T-shaped plate; 303. Second servo motor; 304. Rotating plate; 305. Sliding plate; 306. Fixed long column; 307. Pull rod; 4. First water pump; 5. First nozzle; 6. Second nozzle; 7. Second water pump; 8. Hollow long plate; 9. Third servo motor; 10. Grooved ring. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] Example:

[0030] Please refer to Figures 1 to 6 This utility model provides a motor housing surface spraying device, which aims to solve the problems in the prior art of uneven spraying quality caused by insufficient paint mixing and the inability to achieve full spraying due to external clamping obstruction.

[0031] like Figure 1 and Figure 2 As shown, the motor housing surface spraying equipment includes a spray booth 1, a clamping mechanism 3 disposed in the spray booth 1, a stirring mechanism 2 for providing paint for spraying, and nozzles disposed at least on the inner wall of the spray booth 1. The spray booth 1 is used to provide a closed spraying operation space, the clamping mechanism 3 is used to fix the motor housing to be sprayed, the stirring mechanism 2 is used to mix and stir the paint to ensure uniform composition, and the nozzles are used to atomize the paint and spray it onto the surface of the motor housing.

[0032] Specifically, the technical solution of the stirring mechanism 2 includes a storage tank 201 for containing paint, a first servo motor 208, and a horizontally arranged fixed long rod 207 whose input end is connected to the output end of the first servo motor 208. The stirring mechanism 2 also includes a set of longitudinal stirring components and a set of transverse stirring components, both of which are driven by the rotation of the fixed long rod 207. The longitudinal stirring component includes a spiral lifting rod 202 vertically arranged in the storage tank 201, a second bevel gear 212 fixed on the fixed long rod 207, and a first bevel gear 204 meshing with the second bevel gear 212. The first bevel gear 204 is fixedly connected to the top end of the spiral lifting rod 202 and is used to convert the horizontal rotational motion of the fixed long rod 207 into the vertical rotational motion of the spiral lifting rod 202. The transverse stirring component... The assembly includes a worm 206 fixed to a fixed long rod 207, a bidirectional lead screw 211 horizontally disposed on the upper part of the storage box 201, a worm wheel 210 fixed to the bidirectional lead screw 211, a slider 209 threadedly engaged with the bidirectional lead screw 211, and a rotating plate column 203 whose top end is fixedly connected to the bottom of the slider 209 and extends vertically downward. The worm wheel 210 meshes with the worm 206 to drive the bidirectional lead screw 211 to rotate, and then drives the slider 209 and the rotating plate column 203 to reciprocate linearly along the axial direction of the bidirectional lead screw 211 through the threaded engagement. To ensure the installation stability of the bidirectional lead screw 211, it is rotatably disposed inside the cross-shaped hollow plate 205. To guide the slider 209 to move smoothly, a groove is provided on the top of the storage box 201, and the slider 209 is slidably disposed in the groove.

[0033] Please refer to Figure 1 , Figure 2 , Figure 5 as well as Figure 6 The clamping mechanism 3 includes a support plate 301 as the mounting base, a second servo motor 303 mounted on the bottom of the support plate 301, and a rotating plate 304 whose input end is fixedly connected to the output end of the second servo motor 303. The clamping mechanism 3 also includes two fixed long columns 306 that are vertically fixed on the support plate 301, two sliding plates 305 that are respectively slidably sleeved on the two fixed long columns 306, and two T-shaped plates 302 that are respectively fixedly connected to the top of the two sliding plates 305.

[0034] To achieve motion transmission, the clamping mechanism 3 is also equipped with two pull rods 307. One end of each pull rod 307 is rotatably connected to the edge of the rotating plate 304, and the other end is rotatably connected to the corresponding sliding plate 305.

[0035] When the second servo motor 303 drives the rotating plate 304 to rotate, the rotating plate 304 applies tension or push force to the two sliding plates 305 through two tie rods 307. Since the sliding plates 305 are restricted to axial sliding by the fixed long column 306, the sliding plates 305 will drive the top T-shaped plate 302 to move synchronously towards or away from each other, thereby achieving clamping or loosening of the inner wall of the motor housing. This internal support clamping structure, which converts rotational motion into linear motion through a linkage mechanism, ensures that the entire outer surface of the motor housing to be sprayed is completely exposed when it is clamped, without any structural obstruction, laying a structural foundation for subsequent comprehensive and uniform spraying operations.

[0036] As a preferred embodiment, in order to achieve rotary spraying of the motor housing, please refer to... Figure 1 and Figure 2 It also includes a hollow long plate 8, a third servo motor 9 and a grooved ring 10. The clamping mechanism 3 is supported by the grooved ring 10 and is set inside the hollow long plate 8. The third servo motor 9 is used to drive the grooved ring 10 to rotate around the central axis of the grooved ring 10, thereby driving the entire clamping mechanism 3 and the motor housing fixed on the clamping mechanism 3 to rotate synchronously.

[0037] As another preferred embodiment, to achieve multi-angle three-dimensional spraying, please refer to... Figure 1 The nozzles include a first nozzle 5 disposed on the top of the spray booth 1 and a second nozzle 6 disposed on the side wall of the spray booth 1. Correspondingly, a first water pump 4 and a second water pump 7 are also included. The inlet ends of the first water pump 4 and the second water pump 7 are connected to the bottom of the storage tank 201, and their outlet ends are respectively connected to the first nozzle 5 and the second nozzle 6 through pipelines, for drawing out the uniformly stirred paint from the storage tank 201 and conveying it to the nozzles.

[0038] As another preferred embodiment, to enhance the effect of longitudinal stirring, please refer to... Figure 4 Two second bevel gears 212 can be spaced apart along the length of the fixed long rod 207, and each second bevel gear 212 meshes with the corresponding first bevel gear 204. The bottom end of each first bevel gear 204 is connected to a spiral lifting rod 202. By setting multiple sets of longitudinal stirring components, the deposited paint at the bottom of the storage box 201 can be turned over more efficiently.

[0039] Before the spraying operation, the second servo motor 303 in the clamping mechanism 3 is started first. The second servo motor 303 drives the rotating plate 304 connected to the output end to rotate. As the rotating plate 304 rotates, the two pull rods 307 connected by the rotation will retract, thereby applying a pulling force to the sliding plate 305 connected to each. Since the sliding plate 305 is slidably sleeved on the fixed long column 306, the movement is limited to sliding along the axial direction of the fixed long column 306. Therefore, the sliding plate 305 drives the T-shaped plate 302 at the top of the sliding plate 305 to move outward synchronously until the inner side of the T-shaped plate 302 is tightly attached to the inner wall of the motor housing, thus completing the internal support fixation of the motor housing.

[0040] After clamping is completed, the first servo motor 208 in the stirring mechanism 2 is started. The first servo motor 208 drives the fixed rod 207 to rotate. The rotation of the fixed rod 207 is split into two paths, simultaneously driving longitudinal and transverse stirring. In the first path, the fixed rod 207 drives the second bevel gear 212 on the fixed rod 207 to rotate. The second bevel gear 212 meshes with the first bevel gear 204 to convert the horizontal rotation into vertical rotation, driving the spiral lifting rod 202 to rotate synchronously. The spiral blades of the spiral lifting rod 202 will agitate the paint at the bottom of the storage box 201. The first step generates an upward pushing force to achieve longitudinal tumbling and stirring. The second step involves the fixed long rod 207 driving the worm 206 on the fixed long rod 207 to rotate. The worm 206 meshes with the worm wheel 210, driving the bidirectional lead screw 211 to rotate. The positive and negative thread structure of the bidirectional lead screw 211 drives the threaded slider 209 to make reciprocating linear motion in the groove. The slider 209 drives the rotating plate column 203 below to perform transverse cutting and stirring of the paint in the upper layer of the storage box 201, ultimately forming a three-dimensional cross stirring that combines longitudinal and transverse forces, ensuring that the paint components are evenly mixed.

[0041] After the paint is stirred evenly, the first water pump 4 and the second water pump 7 start synchronously, drawing the homogenized paint from the storage tank 201 and transporting it through pipelines to the first nozzle 5 on the top of the spray booth 1 and the second nozzle 6 on the side. After atomization, the paint is evenly sprayed onto the surface of the motor housing. At the same time, the third servo motor 9 is started, driving the grooved ring 10 to rotate, which in turn drives the entire clamping mechanism 3 supported on the grooved ring 10, together with the fixed motor housing, to rotate stably. Through the synergistic effect of workpiece rotation and multi-point spraying, a comprehensive spraying operation without dead angles is achieved on all outer surfaces of the motor housing.

[0042] Working principle: The second servo motor 303 at the bottom of the support plate 301 is started, which drives the rotating plate 304 to rotate, causing the pull rod 307 to retract or extend. Under the limit of the fixed column 306, the sliding plate 305 and the top T-shaped plate 302 are pulled to slide outward until the T-shaped plate 302 abuts against the motor housing to complete the fixation. The first servo motor 208 of the stirring mechanism 2 is started, which drives the fixed column 207 to rotate. Through the bevel gear transmission, the spiral lifting rod 202 stirs the paint longitudinally. The worm gear 206 drives the bidirectional lead screw 211 to rotate, which makes the slider 209 and the rotating plate column 203 stir laterally. After three-dimensional cross stirring, the first water pump 4 and the second water pump 7 deliver the paint to the nozzle for atomization and spraying. The third servo motor 9 drives the motor housing to rotate to complete the full spraying.

[0043] Before spraying, the second servo motor 303 at the bottom of the support plate 301 in the clamping mechanism 3 is first started, driving the rotating plate 304 connected to the output end to rotate. When the rotating plate 304 rotates, its top two sides are rotatably connected to one end of two pull rods 307 via rotating shafts. Therefore, when the rotating plate 304 rotates, it synchronously drives the two pull rods 307 to rotate around the rotation of the rotating plate 304, thus causing the pull rods 307 to retract or extend. Since the other end of the pull rods 307 is also rotatably connected to the top of the sliding plate 305 via rotating shafts, and the sliding plate 305 is sleeved on the outside of the fixed long column 306, When the pull rod 307 retracts as the rotating plate 304 rotates, the pull rod 307 applies a pulling force to the sliding plate 305. Under the limiting action of the fixed column 306, the sliding plate 305 cannot rotate and can only slide along the axial direction of the fixed column 306. As the rotating plate 304 continues to rotate, the amount of retraction of the pull rod 307 gradually increases, eventually pulling the two sets of sliding plates 305 to slide outward synchronously along the fixed column 306, thereby driving the T-shaped plate 302 connected to the top of the sliding plate 305 to expand outward until the inner side of the T-shaped plate 302 is tightly fitted against the inner wall surface of the sleeved motor housing, thus completing the fixation of the motor housing.

[0044] The first servo motor 208 in the stirring mechanism 2 drives the fixed rod 207 at the output end to rotate. When the fixed rod 207 rotates, it synchronously drives the second bevel gears 212 at both ends of the outer side of the fixed rod 207 to rotate coaxially with the worm gear 206 fixed in the middle. When the second bevel gear 212 rotates, it meshes with the first bevel gear 204 at the bottom, converting the horizontal rotation of the fixed rod 207 into the vertical rotation of the first bevel gear 204. This drives the spiral lifting rod 202 connected to the bottom of the first bevel gear 204 to rotate synchronously. When the spiral lifting rod 202 rotates inside the storage box 201, the spiral blades will generate an upward pushing force on the paint deposited at the bottom of the storage box 201, effectively preventing the heavy components from stratifying due to gravity sedimentation. At the same time, it forms a longitudinal tumbling of the middle layer of paint. When the worm gear 206 rotates, it meshes with the worm wheel 210 in the middle of the bidirectional screw 211, which is rotatably connected to the inside of the cross-shaped hollow plate 205, and drives the bidirectional screw 211 to rotate. 1. The rotation of the two-way lead screw 211 drives the two sets of sliders 209 on the outside to slide back and forth in the groove at the top of the storage box 201. The rotating plate column 203 connected to the bottom of the slider 209 moves synchronously with the slider 209. During the sliding process, the upper layer of paint in the storage box 201 is horizontally cut and stirred, and finally a three-dimensional cross stirring with longitudinal and transverse directions is formed, which further breaks the concentration gradient inside the paint. After the double stirring action, the paint in the storage box 201 achieves uniform mixing of components and consistent viscosity. At this time, the first water pump 4 and the second water pump 7 start synchronously, and the homogenized paint is extracted from the storage box 201 and transported through the pipeline to the first nozzle 5 at the top of the spray booth 1 and the second nozzle 6 on the right side of the spray booth 1 for atomization and uniform spraying on the surface of the motor housing. At the same time, the third servo motor 9 is started, which drives the top groove ring 10 to abut against the fixed motor housing and perform full rotation spraying in the hollow long plate 8 to complete the spraying operation.

Claims

1. A motor housing surface spraying device, comprising a spray booth (1), a clamping mechanism (3) disposed in the spray booth (1), a stirring mechanism (2) for providing paint for spraying, and a nozzle disposed on the inner wall of the spray booth (1), wherein the stirring mechanism (2) comprises a storage tank (201); Its features are, The stirring mechanism (2) further includes: a first servo motor (208), a fixed long rod (207), a worm gear (206), a two-way lead screw (211), a slider (209), and a rotating plate column (203), which are horizontally arranged and whose input ends are connected to the output end of the first servo motor (208); and a spiral lifting rod (202), which is vertically arranged in the storage box (201). The top end of the spiral lifting rod (202) is connected to the fixed long rod (207) via a first bevel gear (204). The second bevel gear (212) on 7) meshes and drives the worm (206) fixed on the fixed long rod (207). The bidirectional screw (211) is horizontally arranged on the upper part of the storage box (201) and meshes and drives the worm (206) through the worm wheel (210) fixed on it. The slider (209) is threadedly fitted on the bidirectional screw (211). The top end of the rotating plate column (203) is fixedly connected to the bottom of the slider (209) and extends vertically downward.

2. The motor housing surface spraying equipment according to claim 1, characterized in that, The stirring mechanism (2) also includes a cross-shaped hollow plate (205), the bidirectional lead screw (211) is rotatably disposed inside the cross-shaped hollow plate (205), the top of the storage box (201) is provided with a sliding groove, and the slider (209) is slidably disposed in the sliding groove.

3. The motor housing surface spraying equipment according to claim 1, characterized in that, The clamping mechanism (3) includes a support plate (301) and a second servo motor (303) installed at the bottom of the support plate (301). The output end of the second servo motor (303) is connected to a rotating plate (304).

4. The motor housing surface spraying equipment according to claim 3, characterized in that, The clamping mechanism (3) further includes: two fixed long columns (306) vertically fixed on the support plate (301), two sliding plates (305) respectively slidably sleeved on the two fixed long columns (306), and two pull rods (307), one end of each pull rod (307) is rotatably connected to the rotating plate (304), and the other end is rotatably connected to the corresponding sliding plate (305).

5. The motor housing surface spraying equipment according to claim 4, characterized in that, The clamping mechanism (3) further includes two T-shaped plates (302), each of which is fixedly connected to the top of the corresponding sliding plate (305) for pressing against the inner wall of the motor housing from the inside.

6. The motor housing surface spraying equipment according to claim 1, characterized in that, The nozzle includes a first nozzle (5) disposed on the top of the spray chamber (1), a second nozzle (6) disposed on the side wall of the spray chamber (1), a first water pump (4) and a second water pump (7). The inlet ends of the first water pump (4) and the second water pump (7) are connected to the storage tank (201), and the outlet ends are respectively connected to the first nozzle (5) and the second nozzle (6).

7. The motor housing surface spraying equipment according to claim 1, characterized in that, It also includes a hollow long plate (8), a third servo motor (9) and a grooved ring (10). The clamping mechanism (3) is supported by the grooved ring (10) and is integrally set inside the hollow long plate (8). The third servo motor (9) is used to drive the grooved ring (10) to rotate around the central axis of the grooved ring (10).

8. The motor housing surface spraying equipment according to claim 1, characterized in that, Two second bevel gears (212) are spaced apart on the fixed long rod (207). Each second bevel gear (212) meshes with the corresponding first bevel gear (204). The bottom end of each first bevel gear (204) is connected to a spiral lifting rod (202).

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