Efficient feeding and grinding device for inner wall of valve body

Abstract

The utility model relates to the technical field of valve machining equipment, in particular to an efficient feeding and polishing device for the inner wall of a valve body, which comprises a polishing mechanism, the polishing mechanism comprises a conveying unit, and a clamping and pushing mechanism is fixedly connected to one end of the conveying unit. A clamping and grinding mechanism is arranged at the position, close to the clamping and pushing mechanism, of one end of the conveying unit. According to the valve polishing device, a valve conveyed by the conveying unit can be clamped through the clamping and pushing mechanism, the clamping and pushing mechanism is matched with the second square rod to stir the sliding frame and the first U-shaped frame to push the sliding frame and the first U-shaped frame to the designated position along the track of the sliding rail, the clamping and polishing mechanism can clamp the two ends of the valve conveniently, and the working accuracy is effectively improved; the second electric telescopic rod drives the frosted pads to enter the valve along a clamped valve port, the third motor drives the frosted pads to rotate with the second electric telescopic rod as the circle center to grind the inner wall, the two ends of the valve are ground at the same time through the two sets of frosted pads, and the grinding efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valve processing equipment, in particular to a high-efficiency feeding and polishing device for the inner wall of a valve body. Background Art

[0002] In modern industrial production, valves, as an essential fluid control device, are widely used in fields such as petroleum, chemical engineering, electric power, and metallurgy. As one of the core components of a valve, the smoothness and cleanliness of its inner wall directly impact the valve's sealing performance and service life. Therefore, polishing the inner wall of the valve body is a critical process for ensuring valve quality. Traditional methods of polishing the inner wall of the valve body are mostly manual, resulting in high labor intensity, low efficiency, and inconsistent quality. With the development of industrial automation technology, automated valve body wall polishing devices are gradually being applied to production lines to improve polishing efficiency and quality.

[0003] Existing valve body inner wall grinding devices mostly use a linear conveyor belt loading method. Although this method has achieved initial automation, some problems still exist. Due to the need for precise positioning, the conveyor belt can only transport one grinding mechanism at a time. After the grinding mechanism has polished the valve body inner wall, it can move to the next one, which limits production efficiency. Utility Model Content

[0004] In order to overcome the above-mentioned technical problems, the practical purpose of the present invention is to provide an efficient feeding and polishing device for the inner wall of a valve body, which drives the valve to be accurately transported to the set position by the conveying unit clamping and pushing mechanism. After it is in place, the electric telescopic rod is driven to push the frame downward until one end of the square plate is close to the outer wall of the conveying unit conveyor belt. At this time, the No. 1 motor drives the rope winding wheel to rotate, winds the traction rope and tightens it. The tension of the traction rope causes the square plate to move toward the center, thereby achieving stable clamping of the valve. The advantage of this clamping mechanism is that it allows the clamping and polishing mechanism equipment to accurately clamp both ends of the valve, provide stable support for the internal polishing of the valve, and effectively improve the clamping accuracy and stability.

[0005] A high-efficiency feeding and grinding device for the inner wall of a valve body, comprising a grinding mechanism, wherein the grinding mechanism comprises a conveying unit, wherein one end of the conveying unit is fixedly connected to a clamping and pushing mechanism, and a clamping and grinding mechanism is provided at one end of the conveying unit near the clamping and pushing mechanism;

[0006] A slide groove is provided on both sides of the outer wall of one end of the conveying unit. The clamping and pushing mechanism includes a U-shaped frame and a telescopic rod. The outer wall of the U-shaped frame is slidably plugged into the slide groove, and a spring telescopic rod is fixedly connected between the outer wall of the U-shaped frame and the inner wall of the slide groove.

[0007] Furthermore, the top wall of the U-shaped frame is fixedly connected to an electric telescopic rod at the center, and the outer wall of one end of the electric telescopic rod is fixedly connected to the frame.

[0008] Preferably: the outer walls on both sides of the frame are provided with a slide groove 2, and square plates are slidably inserted at both sides of the center inside the slide groove 2, and a spring 1 is fixedly connected between the outer wall of the square plate and the inner wall of the slide groove 2, and the outer wall of one side of the frame is fixedly connected to an L-shaped frame 1, one end of the L-shaped frame 1 is fixedly connected to motor No. 1, and the rotating shaft of motor No. 1 is fixedly connected to round rod 1, and the outer walls of both ends of the round rod 1 are fixedly connected to rope winding wheels, and a traction rope is wound around the rope winding wheels, and one end of the traction rope is fixedly connected to the outer wall of the square plate along the inside of the slide groove 2.

[0009] Preferably: the outer walls on both sides of the U-shaped frame are fixedly connected to telescopic rod 1, the outer wall of one end of the telescopic rod is penetrated and fixedly connected to round rod 2, the outer wall of one end of the round rod 2 is slidably connected to a slide rail, the outer wall of the slide rail is fixedly connected to the conveying unit, the outer wall of the telescopic rod 2 is fixedly connected to the conveying unit, one end of the telescopic rod 2 is fixedly connected to a slide, an inclined block is slidably connected inside the slide, and a spring 2 is fixedly connected between the outer wall of the inclined block and the inner wall of the slide.

[0010] Preferably: the clamping and grinding mechanism includes a rotating seat, the rotating seat is rotatably connected to a round roller, the outer wall of the round roller is fixedly connected to the rotating shaft of the No. 2 motor, the outer wall of the No. 2 motor is fixedly connected to the inner wall of the rotating seat, and the outer wall of the round roller is fixedly connected to several square rods at equal angles around its axis.

[0011] Preferably, both sides of the square rod 1 are fixedly connected to an L-shaped frame 2 at one side of the center, and the outer wall of one end of the L-shaped frame 2 is fixedly connected to the square rod 2.

[0012] Preferably: one end of the square rod is fixedly connected to a U-shaped frame 2, a dual-axis motor is fixedly connected to the center of the U-shaped frame 2, both end shafts of the dual-axis motor are fixedly connected to threaded rods, the outer walls of the threaded rods are screwed and connected to the arc-shaped frame, the inner walls of both sides of the U-shaped frame 2 are fixedly connected to electric telescopic rod 2, the outer wall of one end of the electric telescopic rod 2 is fixedly connected to motor No. 3, the outer wall of the rotating shaft of motor No. 3 is fixedly connected to several spring telescopic rods 2 at equal angles around its axis, and the outer wall of one end of the spring telescopic rod 2 is fixedly connected to a sanding pad.

[0013] Beneficial effects of the utility model:

[0014] 1. The valve is precisely transported to the set position by the conveying unit drive clamping and pushing mechanism. After it is in place, the electric telescopic rod is driven to push the frame downward until one end of the square plate is close to the outer wall of the conveyor belt of the conveying unit. At this time, the No. 1 motor drives the rope winding wheel to rotate, wind the traction rope and tighten it. The tension of the traction rope causes the square plate to move toward the center, achieving stable clamping of the valve. The advantage of this clamping mechanism is that it allows the clamping and grinding mechanism equipment to accurately clamp both ends of the valve, providing stable support for the internal grinding of the valve, and effectively improving the clamping accuracy and stability.

[0015] 2. Driven by motor No. 2, the round roller rotates, which in turn drives square rod 1 to rotate. When square rod 2 touches the outer wall of the slide, it is subjected to thrust, which causes the slide to push round rod 2 to slide along the track set by the slide rail. This action drives the clamped valve to move to the predetermined position along the slide rail track. Through this series of mechanical linkages, it is ensured that each valve is accurately delivered to the fixed position, providing convenient clamping conditions for the clamping and grinding mechanism equipment, thereby effectively improving the accuracy of the operation.

[0016] 3. When the U-shaped frame 2 rotates to align with the clamped valve, the dual-axis motor drives the threaded rod to rotate, thereby pushing the arc-shaped frame to move toward the middle, thereby achieving a stable clamping of both ends of the valve. After the clamping action is completed, the electric telescopic rod 2 drives to guide the grinding pad into the interior of the valve and fits tightly against the inner wall. Subsequently, the No. 3 motor drives the grinding pad to rotate, and at the same time cooperates with the electric telescopic rod 2 to push the grinding pad deeper into the inner wall to fully polish the inner wall of the valve. The valve clamping and polishing operations are repeated through the rotation of the clamping and polishing mechanism. This coherent process significantly improves the efficiency of the polishing work. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the partial structure of the clamping and pushing mechanism in the utility model;

[0020] Figure 3 This is a schematic diagram of the partial cross-sectional structure of the clamping and pushing mechanism in the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the clamping and grinding mechanism in the utility model;

[0022] Figure 5 This is a schematic diagram of the partial cross-sectional structure of the clamping and grinding mechanism in the utility model;

[0023] Figure 6 This utility model Figure 5 Schematic diagram of the structure at point a.

[0024] In the figure: 100, grinding mechanism; 110, conveying unit; 111, chute 1; 200, clamping and pushing mechanism; 210, U-shaped frame 1; 211, electric telescopic rod 1; 212, frame; 213, chute 2; 214, square plate; 215, spring 1; 220, L-shaped frame 1; 221, No. 1 motor; 222, round rod 1; 223, rope winding wheel; 224, traction rope; 230, spring telescopic rod 1; 240, telescopic rod 1; 241, round rod 2; 242, slide Rail; 250, telescopic rod 2; 251, slide; 252, inclined block; 253, spring 2; 300, clamping and grinding mechanism; 310, rotating seat; 311, round roller; 312, motor No. 2; 313, square rod 1; 314, L-shaped frame 2; 315, square rod 2; 320, U-shaped frame 2; 321, dual-axis motor; 322, threaded rod; 323, arc frame; 324, electric telescopic rod 2; 325, motor No. 3; 326, spring telescopic rod 2; 327, sanding pad. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-6As shown, a high-efficiency feeding and grinding device for the inner wall of a valve body includes a grinding mechanism 100, which includes a conveying unit 110. The conveying unit 110 is fixedly connected to a clamping and pushing mechanism 200 at one end. A clamping and grinding mechanism 300 is provided at one end of the conveying unit 110 near the clamping and pushing mechanism 200. A slide 111 is provided on both sides of the outer wall of one end of the conveying unit 110. The clamping and pushing mechanism 200 includes a U-shaped frame 210 and a telescopic rod 250. The outer wall of the U-shaped frame 210 is slidably plugged into the slide 111. A spring telescopic rod 230 is fixedly connected between the outer wall of the U-shaped frame 210 and the inner wall of the slide 111. The top wall of the U-shaped frame 210 is fixedly connected to an electric telescopic rod 1 at the center. 211. The outer wall of one end of the electric telescopic rod 211 is fixedly connected to the frame 212. The outer walls on both sides of the frame 212 are provided with a slide groove 213. Square plates 214 are slidably inserted at both sides of the center of the slide groove 213. A spring 215 is fixedly connected between the outer wall of the square plate 214 and the inner wall of the slide groove 213. An L-shaped frame 220 is fixedly connected to the outer wall of one side of the frame 212. One end of the L-shaped frame 220 is fixedly connected to the No. 1 motor 221. The rotating shaft of the No. 1 motor 221 is fixedly connected to the round rod 1 222. The outer walls of both ends of the round rod 1 222 are fixedly connected to a rope winding wheel 223. The rope winding wheel 223 is wound with a traction rope 224. One end of the traction rope 224 is fixedly connected to the outer wall of the square plate 214 along the inside of the slide groove 213.

[0027] The outer walls of both sides of the U-shaped frame 210 are fixedly connected to the telescopic rod 1 240, and the outer wall of one end of the telescopic rod 1 240 passes through and is fixedly connected to the round rod 241, and the outer wall of one end of the round rod 241 is slidably plugged with a slide rail 242, and the outer wall of the slide rail 242 is fixedly connected to the conveying unit 110, and the outer wall of the telescopic rod 250 is fixedly connected to the conveying unit 110, and one end of the telescopic rod 250 is fixedly connected to the slide 251, and an inclined block 252 is slidably plugged inside the slide 251, and a spring 253 is fixedly connected between the outer wall of the inclined block 252 and the inner wall of the slide 251, and the clamping and grinding mechanism 300 includes a rotating seat 310, and the rotating seat 310 is rotatably connected to a round roller 311, and the outer wall of the round roller 311 is fixedly connected to the rotating shaft of the second motor 312, and the outer wall of the second motor 312 is fixedly connected to the inner wall of the rotating seat 310, and the outer wall of the round roller 311 is angularly rotated around its axis. Several square rods 313 are fixedly connected, and L-shaped frames 314 are fixedly connected on both sides of the square rod 313 at one side of the center. The outer wall of one end of the L-shaped frame 314 is fixedly connected to the square rod 315. One end of the square rod 313 is fixedly connected to the U-shaped frame 320. A dual-axis motor 321 is fixedly connected at the center of the U-shaped frame 320. The rotating shafts at both ends of the dual-axis motor 321 are fixedly connected to threaded rods 322. The outer walls of the threaded rods 322 are screwed together with the arc-shaped frames 323. The inner walls of both sides of the U-shaped frame 320 are fixedly connected to electric telescopic rods 324. The outer wall of one end of the electric telescopic rod 324 is fixedly connected to the third motor 325. The outer wall of the rotating shaft of the third motor 325 is fixedly connected to several spring telescopic rods 326 at equal angles around its axis. The outer wall of one end of the spring telescopic rod 326 is fixedly connected to a frosting pad 327.

[0028] Specifically, during operation, the conveying unit 110 drives the valve to the clamping and pushing mechanism 200, and the electric telescopic rod 1 211 drives the frame 212 to move downward until one end of the square plate 214 is attached to the outer wall of the conveyor belt of the conveying unit 110, and the No. 1 motor 221 drives the rope winding wheel 223 to rotate, and the traction rope 224 is wound and tightened. The square plate 214 is pulled toward the middle to clamp the valve. After the clamping is completed, the electric telescopic rod 1 211 drives the frame 212 to return to its original position, and the No. 2 motor 312 drives the round roller 311 to rotate, driving the square rod 1 313 to move. When the square rod 2 315 contacts the outer wall of the slide 251, it is pushed to make the slide 251 push the round rod 241 to slide along the track of the slide rail 242, driving the clamped valve to move along the track to the specified position. When the U-shaped frame 2 320 rotates to face the clamped valve, the dual-axis motor 321 drives the threaded rod 322 to rotate, driving the arc frame 323 to move toward the middle to clamp the two ends of the valve. After the clamping is completed, the electric telescopic rod 2 324 drives the frosting pad 327 to enter the interior of the valve and close to the inner wall. The third motor 325 drives the frosting pad 327 to rotate, and then cooperates with the electric telescopic rod 2 324 to drive the frosting pad 327 to extend into the wall to perform a comprehensive polishing of the inner wall. The second motor 312 drives the square rod 1 313 to continue to rotate. The square rod 2 315 slides on the outer wall of the slide 251 to the inclined block 252. The inclined block 252 is squeezed and slides toward the inside of the slide 251, separating from the square rod 2 315. The spring telescopic rod 1 230 rebounds, causing the U-shaped frame 1 210 to return to its original position and repeat the clamping operation.

[0029] Example 1

[0030] like Figure 2 As shown, in this embodiment, the top wall of the U-shaped frame 210 is fixedly connected to an electric telescopic rod 211 at the center, and the outer wall of one end of the electric telescopic rod 211 is fixedly connected to a frame 212. The outer walls on both sides of the frame 212 are provided with a slide groove 213, and the inside of the slide groove 213 is slidably inserted with square plates 214 on both sides of the center. A spring 215 is fixedly connected between the outer wall of the square plate 214 and the inner wall of the slide groove 213, and an L-shaped frame 220 is fixedly connected to the outer wall of one side of the frame 212. One end of the L-shaped frame 220 is fixedly connected to a No. 1 motor 221, and the rotating shaft of the No. 1 motor 221 is fixedly connected to a round rod 222. The outer walls of both ends of the round rod 222 are fixedly connected to a rope winding wheel 223, and the rope winding wheel 223 is wound with a traction rope 224. One end of the traction rope 224 is fixedly connected to the outer wall of the square plate 214 along the inside of the slide groove 213.

[0031] In this embodiment, the conveying unit 110 is driven to transport the valve to the designated position where the clamping and pushing mechanism 200 is located. After arriving at the designated position, the electric telescopic rod 211 is driven to drive the frame 212 downward until one end of the square plate 214 is in close contact with the outer wall of the conveyor belt of the conveying unit 110. Subsequently, the first motor 221 drives the rope winding wheel 223 to rotate, thereby winding and tightening the traction rope 224. Due to the pulling effect of the traction rope 224, the square plate 214 moves toward the middle, achieving a stable clamping of the valve. After the clamping operation is completed, the electric telescopic rod 211 is driven again to bring the frame 212 back to its original position. By clamping the outer wall of the valve, it is convenient for the clamping and grinding mechanism 300 to accurately clamp both ends of the valve and grind the interior, effectively improving accuracy and stability.

[0032] like Figure 2-3 As shown, in this embodiment, the outer walls of both sides of the U-shaped frame 210 are fixedly connected to the telescopic rod 1 240, the outer wall of one end of the telescopic rod 1 240 is penetrated and fixedly connected to the round rod 241, the outer wall of one end of the round rod 241 is slidably inserted into the slide rail 242, the outer wall of the slide rail 242 is fixedly connected to the conveying unit 110, the outer wall of the telescopic rod 250 is fixedly connected to the conveying unit 110, one end of the telescopic rod 250 is fixedly connected to the slide 251, the inside of the slide 251 is slidably inserted with an inclined block 252, and the outer wall of the inclined block 252 and the inner wall of the slide 251 are fixedly connected with a spring 253, and both sides of the square rod 1 313 are fixedly connected to the L-shaped frame 2 314 at one side of the center, and the outer wall of one end of the L-shaped frame 2 314 is fixedly connected to the square rod 2 315.

[0033] During specific implementation, the No. 2 motor 312 drives the round roller 311 to rotate, driving the square rod 1 313 to move. When the square rod 2 315 contacts the outer wall of the slide 251, it is thrust, causing the slide 251 to push the round rod 241 to slide along the track of the slide rail 242, driving the clamped valve to move along the track to the specified position. Through a series of mechanical linkages, each clamped valve can be sent to a fixed position, which is convenient for the clamping and grinding mechanism 300 to clamp, effectively improving the accuracy.

[0034] Example 2

[0035] like Figure 4-6As shown, in this embodiment, one end of the square rod 1 313 is fixedly connected to the U-shaped frame 2 320, and a dual-axis motor 321 is fixedly connected at the center inside the U-shaped frame 2 320, and the rotating shafts at both ends of the dual-axis motor 321 are fixedly connected to the threaded rod 322, and the outer wall of the threaded rod 322 is screwed and connected to the arc frame 323, and the inner walls on both sides of the U-shaped frame 2 320 are fixedly connected to the electric telescopic rod 2 324, and the outer wall of one end of the electric telescopic rod 2 324 is fixedly connected to the third motor 325, and the outer wall of the rotating shaft of the third motor 325 is fixedly connected to a number of spring telescopic rods 2 326 at equal angles around its axis, and the outer wall of one end of the spring telescopic rod 2 326 is fixedly connected to a frosting pad 327.

[0036] During specific implementation, when the U-shaped frame 320 rotates to face the clamped valve, the dual-axis motor 321 drives the threaded rod 322 to rotate, driving the arc frame 323 to move toward the middle to clamp the two ends of the valve. After clamping is completed, the electric telescopic rod 324 drives the frosting pad 327 to enter the interior of the valve and adhere to the inner wall. The third motor 325 drives the frosting pad 327 to rotate, and then cooperates with the electric telescopic rod 324 to drive the frosting pad 327 to extend into the wall to perform a comprehensive polishing of the inner wall. The valve is clamped and polished repeatedly through the rotation of the clamping and polishing mechanism 300, which effectively improves the polishing efficiency.

[0037] Throughout this specification, references to terms such as "one embodiment," "example," and "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0038] The above contents are merely examples and explanations of the present invention. Those skilled in the art may make various modifications or additions to the described specific embodiments or replace them in similar ways. As long as they do not deviate from the scope of the present invention or exceed the scope defined by the claims, they shall fall within the scope of protection of the present invention.

Claims

1. A high-efficiency feeding and polishing device for the inner wall of a valve body, characterized in that: The grinding mechanism (100) includes a conveying unit (110), the conveying unit (110) is fixedly connected to a clamping and pushing mechanism (200) at one end, and a clamping and grinding mechanism (300) is provided at one end of the conveying unit (110) near the clamping and pushing mechanism (200); A slide groove (111) is provided on both sides of the outer wall of one end of the conveying unit (110), and the clamping and pushing mechanism (200) includes a U-shaped frame (210) and a telescopic rod (250). The outer wall of the U-shaped frame (210) is slidably connected to the slide groove (111), and a spring telescopic rod (230) is fixedly connected between the outer wall of the U-shaped frame (210) and the inner wall of the slide groove (111).

2. The high-efficiency feeding and polishing device for the inner wall of a valve body according to claim 1, characterized in that: The top wall of the U-shaped frame (210) is fixedly connected to an electric telescopic rod (211) at the center, and the outer wall of one end of the electric telescopic rod (211) is fixedly connected to a frame (212).

3. The high-efficiency feeding and polishing device for the inner wall of a valve body according to claim 2, characterized in that: The outer walls of both sides of the frame (212) are provided with a second slide groove (213), and a square plate (214) is slidably inserted at both sides of the center of the inner part of the second slide groove (213). A spring (215) is fixedly connected between the outer wall of the square plate (214) and the inner wall of the second slide groove (213). An L-shaped frame (220) is fixedly connected to the outer wall of one side of the frame (212), and one end of the L-shaped frame (220) is fixedly connected to the first motor (221). The rotating shaft of the first motor (221) is fixedly connected to the first round rod (222). The outer walls of both ends of the first round rod (222) are fixedly connected to a rope winding wheel (223), and a traction rope (224) is wound around the rope winding wheel (223). One end of the traction rope (224) is fixedly connected to the outer wall of the square plate (214) along the inner part of the second slide groove (213).

4. The high-efficiency feeding and polishing device for the inner wall of a valve body according to claim 3, characterized in that: The outer walls on both sides of the U-shaped frame (210) are fixedly connected to the telescopic rod (240), the outer wall of one end of the telescopic rod (240) is penetrated and fixedly connected to the round rod (241), the outer wall of one end of the round rod (241) is slidably connected to the slide rail (242), the outer wall of the slide rail (242) is fixedly connected to the conveying unit (110), the outer wall of the telescopic rod (250) is fixedly connected to the conveying unit (110), one end of the telescopic rod (250) is fixedly connected to the slide (251), the interior of the slide (251) is slidably connected to an inclined block (252), and the outer wall of the inclined block (252) and the inner wall of the slide (251) are fixedly connected to a spring (253).

5. The high-efficiency feeding and polishing device for the inner wall of a valve body according to claim 4, characterized in that: The clamping and grinding mechanism (300) includes a rotating seat (310), the rotating seat (310) is rotatably connected to a round roller (311), the outer wall of the round roller (311) is fixedly connected to the rotating shaft of the second motor (312), the outer wall of the second motor (312) is fixedly connected to the inner wall of the rotating seat (310), and the outer wall of the round roller (311) is fixedly connected to a plurality of square rods (313) at equal angles around its axis.

6. The high-efficiency feeding and polishing device for the inner wall of a valve body according to claim 5, characterized in that: Both sides of the square rod 1 (313) are fixedly connected to the L-shaped frame 2 (314) at one side of the center, and the outer wall of one end of the L-shaped frame 2 (314) is fixedly connected to the square rod 2 (315).

7. The high-efficiency feeding and polishing device for the inner wall of a valve body according to claim 6, characterized in that: One end of the square rod 1 (313) is fixedly connected to the U-shaped frame 2 (320), and a dual-axis motor (321) is fixedly connected at the center of the U-shaped frame 2 (320). The rotating shafts at both ends of the dual-axis motor (321) are fixedly connected to the threaded rod (322), and the outer wall of the threaded rod (322) is screwed and connected to the arc frame (323). The inner walls of both sides of the U-shaped frame 2 (320) are fixedly connected to the electric telescopic rod 2 (324), and the outer wall of one end of the electric telescopic rod 2 (324) is fixedly connected to the third motor (325). The outer wall of the rotating shaft of the third motor (325) is fixedly connected to a plurality of spring telescopic rods 2 (326) at equal angles around its axis, and the outer wall of one end of the spring telescopic rod 2 (326) is fixedly connected to a frosting pad (327).

Images