Turnover mechanism for aircraft tire side wall inspection

Abstract

The utility model relates to the technical field of aviation tire production, in particular to an aviation tire side wall inspection turnover mechanism, which not only can blow the bottom surface and the side edge of a tire and prevent dust on the surface of the tire from influencing the detection effect, but also can be suitable for tires with different sizes, so that the application range of the device is widened. Comprising a detection mechanism; the tire detection device further comprises two turnover mechanisms, a rotating mechanism, a clamping mechanism and a blowing mechanism, the two turnover mechanisms are installed on the detection mechanism and matched to fix a tire, the rotating mechanism is installed on the detection mechanism and drives the tire to rotate, the clamping mechanism is installed on the rotating mechanism and clamps the tire, and the blowing mechanism is installed on the clamping mechanism and used for blowing the tire. And the blowing mechanism is mounted on the rotating mechanism and is used for blowing the tire.

Description

Technical Field

[0001] The utility model relates to the technical field of aviation tire production, in particular to an aviation tire sidewall inspection and turnover mechanism. Background Art

[0002] Aircraft tires are important components on aircraft with high safety and reliability requirements. They are designed to withstand aircraft ground loads and cushion the impact and vibration loads generated when the aircraft taxis on the ground.

[0003] The existing turning mechanism, for example, a turning mechanism for a tire inspection production line disclosed in the utility model patent with application number 202122422390X, has a main structure including a base, a mounting groove is provided on the top of the base, a turning module is provided on the inner bottom wall of the mounting groove, one side of the turning module passes through the mounting groove and extends to the outside of the mounting groove, an adjustment component is provided on the top of the base, and the turning module includes an electric push rod, which is hinged to the inner bottom wall of the mounting groove, and the output shaft of the electric push rod passes through the mounting groove and is hinged to the placement plate; when in use, the tire to be inspected is placed on the two sides of the placement plate When the tire needs to be flipped, the flipping direction is selected according to the actual situation, and the position of the push block on the same side is adjusted by rotating the threaded rod to adjust the length of the threaded rod extending into the interior of the mounting seat, so that the first rotating rod is limited by the action of the adjusting component, and the electric push rod can be started to flip the placement plate along the first rotating rod as the center point. During the flipping process, the anti-drop component can limit the tire to be inspected to prevent it from falling. When it is necessary to flip to another angle, it is only necessary to reset the placement plate through the electric push rod and then screw the threaded rod in the opposite direction to limit the first rotating rod on the other side, and then start the electric push rod.

[0004] However, most of the existing flipping mechanisms are difficult to apply to tires of different sizes and have a narrow scope of application. In addition, the tire surface is always in contact with the ground and the conveyor belt surface. After flipping, there is likely to be a lot of dust, which affects the detection effect. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an aviation tire sidewall inspection and flipping mechanism that can not only clean the bottom and sides of the tire to prevent dust on the tire surface from affecting the detection effect, but also can be applied to different tire sizes, thereby increasing the applicability of the device.

[0006] The utility model discloses an aircraft tire sidewall inspection and flipping mechanism, which comprises a detection mechanism; further comprising two groups of flipping mechanisms, a rotating mechanism, a clamping mechanism and a purging mechanism, wherein the two groups of flipping mechanisms are respectively mounted on the detection mechanism and cooperate to fix the tire, the rotating mechanism is mounted on the detection mechanism and drives the tire to rotate, the clamping mechanism is mounted on the rotating mechanism and clamps the tire, and the purging mechanism is mounted on the rotating mechanism and purges the tire; the tire is conveyed forward on the detection mechanism and the upper side of the tire is inspected, then the two groups of flipping mechanisms fix the tire and lift the tire, then the clamping mechanism clamps the tire, the rotating mechanism is started to drive the clamping mechanism and the tire to rotate, and at the same time the purging mechanism purges the surface of the tire, and facilitates the detection mechanism to detect the periphery of the tire, then the clamping mechanism places the tire on the two groups of flipping mechanisms again, and the two groups of flipping mechanisms drive the tire to flip, and facilitates the detection mechanism to detect the flipped side of the tire.

[0007] Preferably, the detection mechanism includes a workbench, a support frame, multiple groups of conveying rollers, three groups of detection brackets and three groups of infrared scanners. The bottom end of the workbench is connected to the ground, the bottom end of the support frame is connected to the top of the workbench, the multiple groups of conveying rollers are rotatably installed on the workbench, the bottom ends of the two groups of detection brackets are connected to the top of the workbench, the third group of detection brackets is installed on the support frame, and the three groups of infrared scanners are respectively installed on the three groups of detection brackets; the tire is conveyed forward on the conveying rollers, and the first group of infrared scanners detects the upper surface of the tire. When the tire moves to the specified position, the two groups of flipping mechanisms lift the tire, and then the clamping mechanism clamps the tire and the rotating mechanism drives the clamping mechanism and the tire to rotate. The infrared scanner on the third group of detection brackets detects the side periphery of the tire. After the two groups of flipping mechanisms turn the tire over, the conveying rollers continue to drive the tire forward, and the second group of infrared scanners detects the back of the tire.

[0008] Preferably, the flipping mechanism includes a servo motor 1, a reducer 1, a screw, a slider, a servo motor 2, a hydraulic cylinder 1, a rib plate and a clamping plate. The bottom end of the servo motor 1 is connected to the top of the support frame, the bottom end of the reducer 1 is connected to the top of the support frame, two sets of sliding grooves are opened on the support frame, the two sets of screws are rotatably installed in the two sets of sliding grooves of the support frame and are respectively longitudinally connected to the two sets of reducer 1, the slider is slidably installed on the screw, the bottom end of the servo motor 2 is connected to the top of the slider, the hydraulic cylinder 1 is rotatably installed on the slider and is transmission-connected to the servo motor 2, one end of the two sets of rib plates is fixedly installed on the slider, and the other end of the two sets of rib plates is connected to the hydraulic cylinder A rotating connection, the plywood is installed on hydraulic cylinder one, and two sets of flipping mechanisms are respectively installed on the left and right sides of the support frame; the two sets of hydraulic cylinders push the two sets of plywood to clamp and fix the tire, and then start the servo motor one, which drives the screw to rotate through the reducer one, and the screw drives the slider to move upward. The two sets of flipping mechanisms can cooperate to clamp tires of different sizes. When the tire is blown, the clamping mechanism places the tire on the plywood, and starts the servo motor two. The servo motor two drives the hydraulic cylinder one to rotate 180 degrees, and the hydraulic cylinder one drives the plywood to rotate to turn the tire over, and the tire falls onto the multiple sets of conveyor rollers again for forward transmission.

[0009] Preferably, the flipping mechanism also includes a bottom plate, the top of which is connected to the bottom end of the clamping plate; by providing the bottom plate to prevent the tire from sliding off the clamping plate, the fixing effect of the two sets of flipping mechanisms on the tire is enhanced, and the tire is prevented from sliding from the side when the tire is turned over.

[0010] Preferably, the rotating mechanism includes an electric motor, a second reducer, a turntable, two groups of five hydraulic cylinders and a connecting plate. The bottom end of the electric motor is connected to the top of the support frame, the bottom end of the second reducer is connected to the top of the support frame, the turntable is rotatably installed on the support frame and is transmission-connected to the second reducer, the top end of the second group of five hydraulic cylinders is connected to the bottom end of the turntable, and the top end of the connecting plate is connected to the bottom end of the second group of five hydraulic cylinders; the second group of five hydraulic cylinders pushes the connecting plate down, and the connecting plate pushes the clamping mechanism down to facilitate the clamping mechanism to grab the tire. After the clamping mechanism grabs the tire, the motor is started, and the motor drives the turntable to rotate through the second reducer, and the turntable drives the clamping mechanism to rotate, making it convenient for the blowing mechanism to blow the tire.

[0011] Preferably, the clamping mechanism includes four groups of connecting rods, a fixed plate, a hydraulic cylinder three, a movable plate and multiple groups of arc-shaped insertion rods, the top ends of the four groups of connecting rods are connected to the bottom ends of the connecting plate, the top ends of the fixed plate are connected to the bottom ends of the four groups of connecting rods and the fixed plate is provided with multiple groups of limiting holes, the top end of the hydraulic cylinder three is connected to the bottom end of the connecting plate, the top end of the movable plate is connected to the bottom end of the hydraulic cylinder three, and the multiple groups of arc-shaped insertion rods are rotatably mounted on the movable plate and pass through the limiting holes of the fixed plate; when the connecting plate drives the clamping mechanism to descend, the multiple groups of arc-shaped insertion rods pass through the center of the tire, and then the hydraulic cylinder three pushes the movable plate downward, and the movable plate pushes the multiple groups of arc-shaped insertion rods downward, and the arc-shaped insertion rods expand outward through the limiting holes to support the bottom end of the tire.

[0012] Preferably, the purging mechanism includes a drive shaft, an air pump, an air pipeline and a cleaning nozzle. The drive shaft rotating device is on the second reducer, the bottom end of the air pump is connected to the top of the support frame, the air pipeline is installed on the air pump, and the cleaning nozzle is installed on the support frame and connected to the inside of the air pipeline; the second reducer drives the drive shaft to rotate, the drive shaft drives the air pump to pump air, the air pump compresses the air and transports it to the cleaning nozzle through the air pipeline, and the high-pressure gas is sprayed onto the tire surface to purge and clean the tire surface.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the tire is conveyed forward on the detection mechanism and the upper side of the tire is detected, then the two sets of flipping mechanisms fix the tire and lift the tire, then the clamping mechanism clamps the tire, the rotating mechanism is started to drive the clamping mechanism and the tire to rotate, and at the same time the blowing mechanism blows the surface of the tire, and facilitates the detection mechanism to detect the periphery of the tire, and then the clamping mechanism puts the tire again on the two sets of flipping mechanisms, the two sets of flipping mechanisms drive the tire to flip, and facilitates the detection mechanism to detect the turned side of the tire. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an axonometric structural diagram of the present utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional axonometric structure of the detection mechanism of the utility model;

[0016] Figure 3 This is a partially enlarged cross-sectional axonometric structural diagram of the turning mechanism of the utility model;

[0017] Figure 4 It is a partially enlarged isometric structural diagram of the rotating mechanism, clamping mechanism and purge mechanism of the utility model.

[0018] Markings in the accompanying drawings: 01, detection mechanism; 11, workbench; 12, support frame; 13, conveyor roller; 14, detection bracket; 15, infrared scanner; 02, flip mechanism; 21, servo motor one; 22, reducer one; 23, lead screw; 24, slider; 25, servo motor two; 26, hydraulic cylinder one; 27, rib; 28, clamping plate; 29, bottom plate; 03, rotating mechanism; 31, motor; 32, reducer two; 33, turntable; 34, hydraulic cylinder two; 35, connecting plate; 04, clamping mechanism; 41, connecting rod; 42, fixed plate; 43, hydraulic cylinder three; 44, movable plate; 45, arc-shaped plug rod; 05, purge mechanism; 51, transmission shaft; 52, air pump; 53, gas pipeline; 54, cleaning nozzle. DETAILED DESCRIPTION

[0019] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0020] Example 1

[0021] The utility model is an aircraft tire sidewall inspection and turning mechanism, comprising a detection mechanism 01; further comprising two groups of turning mechanisms 02, a rotating mechanism 03, a clamping mechanism 04 and a purging mechanism 05, wherein the two groups of turning mechanisms 02 are respectively mounted on the detection mechanism 01 and the two groups of turning mechanisms 02 cooperate to fix the tire, the rotating mechanism 03 is mounted on the detection mechanism 01 and drives the tire to rotate, the clamping mechanism 04 is mounted on the rotating mechanism 03 and clamps the tire, and the purging mechanism 05 is mounted on the rotating mechanism 03 and purges the tire; the detection mechanism 01 comprises a workbench 11, a support frame 12, multiple groups of conveying rollers 13, three groups of detection The bracket 14 and three groups of infrared scanners 15, the bottom end of the workbench 11 is connected to the ground, the bottom end of the support frame 12 is connected to the top of the workbench 11, multiple groups of conveying rollers 13 are rotatably installed on the workbench 11, the bottom ends of two groups of detection brackets 14 are connected to the top of the workbench 11, the third group of detection brackets 14 are installed on the support frame 12, and the three groups of infrared scanners 15 are respectively installed on the three groups of detection brackets 14; the turning mechanism 02 includes a servo motor 21, a reducer 22, a lead screw 23, a slider 24, a servo motor 25, a hydraulic cylinder 26, a rib 27 and a clamping plate 28, the bottom end of the servo motor 21 is connected to the support frame 1 2, the bottom end of the reducer 12 is connected to the top of the support frame 12, the support frame 12 is provided with two sets of sliding grooves, the two sets of lead screws 23 are respectively rotatably installed in the two sets of sliding grooves of the support frame 12 and are respectively longitudinally connected to the two sets of reducers 1 22, the slider 24 is slidably installed on the lead screw 23, the bottom end of the servo motor 25 is connected to the top of the slider 24, the hydraulic cylinder 1 26 is rotatably installed on the slider 24 and is connected to the servo motor 25 transmission, one end of the two sets of ribs 27 is fixedly installed on the slider 24, the other end of the two sets of ribs 27 is rotatably connected to the hydraulic cylinder 1 26, the splint 28 is installed on the hydraulic cylinder 1 26, the two sets The flipping mechanism 02 is respectively installed on the left and right sides of the support frame 12; the flipping mechanism 02 also includes a bottom plate 29, the top of the bottom plate 29 is connected to the bottom end of the clamping plate 28; the rotating mechanism 03 includes a motor 31, a reducer 2 32, a turntable 33, five groups of hydraulic cylinders 2 34 and a connecting plate 35, the bottom end of the motor 31 is connected to the top of the support frame 12, the bottom end of the reducer 2 32 is connected to the top of the support frame 12, the turntable 33 is rotatably installed on the support frame 12 and is transmission-connected to the reducer 2 32, the top of the five groups of hydraulic cylinders 2 34 are connected to the bottom end of the turntable 33, and the top of the connecting plate 35 is connected to the bottom end of the five groups of hydraulic cylinders 2 34;The clamping mechanism 04 includes four groups of connecting rods 41, a fixed plate 42, a hydraulic cylinder 3 43, a movable plate 44 and multiple groups of arc-shaped plug rods 45. The top of the four groups of connecting rods 41 is connected to the bottom end of the connecting plate 35, the top of the fixed plate 42 is connected to the bottom end of the four groups of connecting rods 41, and multiple groups of limiting holes are opened on the fixed plate 42. The top of the hydraulic cylinder 3 43 is connected to the bottom end of the connecting plate 35, the top of the movable plate 44 is connected to the bottom end of the hydraulic cylinder 3 43, and the multiple groups of arc-shaped plug rods 45 are all rotatably mounted on the movable plate 44 and pass through the limiting holes of the fixed plate 42. When it is working, the tire is first transported forward on the conveying roller 13, and the first group of infrared scanners 15 detects the upper surface of the tire. When the tire moves to the specified position, the two groups of hydraulic cylinders 26 push the two groups of clamps 28 to clamp the tire, and then start the servo motor 21. The servo motor 21 drives the screw 23 to rotate through the reducer 22, and the screw 23 drives the slider 24 to move upward. The two groups of flipping mechanisms 02 can cooperate to clamp tires of different sizes. When the connecting plate 35 drives the clamping mechanism 04 to descend, multiple groups The arc-shaped rod 45 passes through the center of the tire, and then the hydraulic cylinder 3 43 pushes the movable plate 44 downward, and the movable plate 44 pushes the multiple sets of arc-shaped rods 45 downward. The arc-shaped rods 45 expand outward through the limit holes to support the bottom end of the tire, and the motor 31 is started. The motor 31 drives the turntable 33 to rotate through the reducer 2 32, and the turntable 33 drives the clamping mechanism 04 to rotate. The purge mechanism 05 purges it while the infrared scanner 15 on the third set of detection brackets 14 detects the side periphery of the tire. When the tire is purged and inspected, After the test is complete, the clamping mechanism 04 is reset, placing the tire on the clamping plate 28. Servo motor 25 is activated, driving hydraulic cylinder 1 26 to rotate 180 degrees. This in turn rotates the clamping plate 28, causing the tire to flip over. The base plate 29 prevents the tire from sliding off the clamping plate 28, enhancing the securing effect of the two sets of flipping mechanisms 02 on the tire. This prevents the tire from sliding sideways during the flipping process, and the tire falls back onto the multiple sets of conveyor rollers 13 for forward transport. The second set of infrared scanners 15 inspects the tire's reverse side.

[0022] Example 2

[0023] like Figures 1 to 4As shown, the utility model is an aircraft tire sidewall inspection and turning mechanism, based on embodiment 1; the purge mechanism 05 includes a transmission shaft 51, an air pump 52, an air pipeline 53 and a cleaning nozzle 54, the transmission shaft 51 rotation device is on the reducer 2 32, the bottom end of the air pump 52 is connected to the top of the support frame 12, the air pipeline 53 is installed on the air pump 52, and the cleaning nozzle 54 is installed on the support frame 12 and communicated with the inside of the air pipeline 53; when it is working, the tire is first conveyed forward on the conveying roller 13, and the first group of infrared scanners 15 inspect the upper surface of the tire. When the tire moves to the specified position, the two groups of hydraulic cylinders 26 push the two groups of clamping plates 28 to clamp and fix the tire, and then start the servo motor 21. The servo motor 21 drives the screw 23 to rotate through the reducer 22, and the screw 23 drives the slider 24 to move upward. The two groups of flipping mechanisms 02 can cooperate to clamp tires of different sizes. When the connecting plate 35 drives the clamping mechanism 04 to descend, multiple groups of arc-shaped insertion rods 45 pass through the center of the tire, and then the hydraulic cylinder 3 43 pushes the moving plate 44 downward, and the moving plate 44 pushes the multiple groups of arc-shaped insertion rods 45 downward. The arc-shaped insertion rods 45 pass through the center of the tire. The limit hole expands outward to support the bottom end of the tire, and the motor 31 is started. The motor 31 drives the turntable 33 to rotate through the reducer 2 32, and the turntable 33 drives the clamping mechanism 04 to rotate. At the same time, the reducer 2 32 drives the transmission shaft 51 to rotate, and the transmission shaft 51 drives the air pump 52 to extract air. The air pump 52 compresses the air and delivers it to the cleaning nozzle 54 through the air pipeline 53. The high-pressure gas is sprayed onto the tire surface to purge and clean the tire surface. At the same time, the purge mechanism 05 purges it. The infrared scanner 15 on the third group of detection brackets 14 performs a perimeter inspection on the side of the tire. After the tire is purged and tested, the clamping mechanism 04 is reset to place the tire on the plywood 28, and the servo motor 25 is started. The servo motor 25 drives the hydraulic cylinder 1 26 to rotate 180 degrees, and the hydraulic cylinder 1 26 drives the plywood 28 to rotate to turn the tire over. The bottom plate 29 is provided to prevent the tire from sliding off the plywood 28, thereby enhancing the fixing effect of the two sets of flipping mechanisms 02 on the tire. When the tire is turned over, it is prevented from sliding from the side, and the tire falls onto the multiple sets of conveying rollers 13 again for forward transmission. The second set of infrared scanners 15 detects the back of the tire.

[0024] The servo motor 21, reducer 22, servo motor 25, electric motor 31 and reducer 2 32 of the present invention are purchased on the market. Technicians in this industry only need to install and operate them according to the accompanying instruction manual, without the need for creative work by technicians in this field.

[0025] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An aircraft tire sidewall inspection and flipping mechanism, comprising a detection mechanism (01); characterized in that: The invention also comprises two groups of turning mechanisms (02), a rotating mechanism (03), a clamping mechanism (04) and a purging mechanism (05). The two groups of turning mechanisms (02) are respectively mounted on the detection mechanism (01) and the two groups of turning mechanisms (02) cooperate to fix the tire. The rotating mechanism (03) is mounted on the detection mechanism (01) and drives the tire to rotate. The clamping mechanism (04) is mounted on the rotating mechanism (03) and clamps the tire. The purging mechanism (05) is mounted on the rotating mechanism (03) and purges the tire.

2. The aircraft tire sidewall inspection and flipping mechanism according to claim 1, characterized in that: The detection mechanism (01) comprises a workbench (11), a support frame (12), a plurality of transmission rollers (13), three detection brackets (14) and three infrared scanners (15). The bottom end of the workbench (11) is connected to the ground, the bottom end of the support frame (12) is connected to the top end of the workbench (11), the plurality of transmission rollers (13) are rotatably mounted on the workbench (11), the bottom ends of two detection brackets (14) are connected to the top end of the workbench (11), the third detection bracket (14) is mounted on the support frame (12), and the three infrared scanners (15) are respectively mounted on the three detection brackets (14).

3. The aircraft tire sidewall inspection and flipping mechanism according to claim 2, characterized in that: The turning mechanism (02) includes a servo motor (21), a reducer (22), a lead screw (23), a slider (24), a servo motor (25), a hydraulic cylinder (26), a rib (27) and a clamp (28). The bottom end of the servo motor (21) is connected to the top end of the support frame (12), the bottom end of the reducer (22) is connected to the top end of the support frame (12), and the support frame (12) is provided with two sets of sliding grooves. The two sets of lead screws (23) are respectively rotatably installed in the two sets of sliding grooves of the support frame (12) and are respectively connected to the two sets of reducers (2 2) longitudinal connection, the slider (24) is slidably mounted on the lead screw (23), the bottom end of the servo motor 2 (25) is connected to the top end of the slider (24), the hydraulic cylinder 1 (26) is rotatably mounted on the slider (24) and is transmission-connected to the servo motor 2 (25), one end of the two groups of ribs (27) is fixedly mounted on the slider (24), the other end of the two groups of ribs (27) is rotationally connected to the hydraulic cylinder 1 (26), the clamping plate (28) is mounted on the hydraulic cylinder 1 (26), and the two groups of flipping mechanisms (02) are respectively mounted on the left and right sides of the support frame (12).

4. The aircraft tire sidewall inspection and flipping mechanism according to claim 3, characterized in that: The turning mechanism (02) further comprises a bottom plate (29), the top end of the bottom plate (29) being connected to the bottom end of the clamping plate (28).

5. The aircraft tire sidewall inspection and flipping mechanism according to claim 2, characterized in that: The rotating mechanism (03) includes an electric motor (31), a second reducer (32), a turntable (33), two sets of five hydraulic cylinders (34) and a connecting plate (35). The bottom end of the electric motor (31) is connected to the top end of the support frame (12), the bottom end of the second reducer (32) is connected to the top end of the support frame (12), the turntable (33) is rotatably mounted on the support frame (12) and is transmission-connected to the second reducer (32), the top end of the second set of five hydraulic cylinders (34) is connected to the bottom end of the turntable (33), and the top end of the connecting plate (35) is connected to the bottom end of the second set of five hydraulic cylinders (34).

6. The aircraft tire sidewall inspection and flipping mechanism according to claim 5, characterized in that: The clamping mechanism (04) comprises four groups of connecting rods (41), a fixed plate (42), a hydraulic cylinder three (43), a movable plate (44) and a plurality of groups of arc-shaped insert rods (45). The top ends of the four groups of connecting rods (41) are connected to the bottom ends of the connecting plate (35), the top ends of the fixed plate (42) are connected to the bottom ends of the four groups of connecting rods (41) and a plurality of groups of limiting holes are opened on the fixed plate (42). The top end of the hydraulic cylinder three (43) is connected to the bottom end of the connecting plate (35), the top end of the movable plate (44) is connected to the bottom end of the hydraulic cylinder three (43), and the plurality of groups of arc-shaped insert rods (45) are all rotatably mounted on the movable plate (44) and pass through the limiting holes of the fixed plate (42).

7. The aircraft tire sidewall inspection and flipping mechanism according to claim 6, characterized in that: The purge mechanism (05) includes a transmission shaft (51), an air pump (52), an air pipeline (53) and a cleaning nozzle (54). The transmission shaft (51) rotation device is on the reducer (32). The bottom end of the air pump (52) is connected to the top end of the support frame (12). The air pipeline (53) is installed on the air pump (52). The cleaning nozzle (54) is installed on the support frame (12) and is communicated with the inside of the air pipeline (53).

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