Indoor marking robot

By designing an indoor scribe robot, the effective mixing of paint is achieved by using the rotary drive assembly and the mixing rack, and the flexible adjustment of the spray direction is achieved through the material and spray conduit assembly, the problems of poor mixing and single spray direction in the prior art are solved, and the quality and flexibility of the scribe are improved.

CN119754586AInactive Publication Date: 2025-04-04HUBEI VOCATIONAL & TECH COLLEGE OF URBAN CONSTR
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Patent Information

Application Number
CN202510150137.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-11
Publication Date
2025-04-04
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

In the prior art, manual wiring errors are large, the paint has poor mixing uniformity when it has not been sprayed for a long time, the spraying direction is single, and it cannot effectively adapt to complex construction environments, and the use flexibility is poor.

Method used

An indoor scribe robot is designed, including a mobile base, a rotary drive assembly, a paint bucket and a mixing rack. The paint bucket is rotated by an asynchronous motor drive rotary shaft. The mixing rack stirs the paint, and convenient scribe through the material pump and spray conduit assembly. The paint bucket can be angled to adapt to different environments.

Benefits of technology

It realizes effective mixing of paint, flexible spraying direction, adapts to complex construction environments, and improves the quality and flexibility of marking.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses an indoor marking robot, comprising a mobile base and a paint bucket arranged on the mobile base, a rotary drive assembly being arranged on the top of the mobile base, the paint bucket being fixedly mounted on the top of the rotary drive assembly, a partition being fixedly mounted inside the paint bucket, the partition being used to sequentially separate the paint bucket into a paint chamber and a tool chamber from top to bottom, and the present invention relates to the field of building construction technology. The indoor marking robot provides mixing conditions for the paint through the coordinated arrangement of the mobile base, the rotary drive assembly, the paint barrel and the stirring frame, and the arrangement of the batching pump and the spraying conduit assembly provides convenient conditions for indoor marking. At the same time, under the arrangement of the angle adjustment assembly, the rotation of the paint bucket can also be realized, and convenient adjustment is provided for adjusting the spraying direction of the paint, and the use flexibility is better, and the marking work in a complex indoor environment can be effectively adapted.
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Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to an indoor marking robot. Background Art

[0002] In the decoration of the interior of a factory or a high-rise building, in order to prevent the building or equipment from being damaged during the construction process, manual layout is often used. A marking line or distribution line is drawn around the wall or equipment, and the construction workers construct outside the marking line to avoid damaging the wall or equipment during construction. Similarly, manual layout and drilling are required when installing the equipment.

[0003] The manual marking method has large errors, and the common marking device often uses a material pump to extract paint from the paint barrel and spray it to achieve marking. This method has the problem of being unable to ensure the mixing of the paint when the paint has not been sprayed out for a long time, affecting the quality of marking. In addition, the paint spraying direction is single and cannot effectively adapt to the construction environment, resulting in poor flexibility in use. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an indoor marking robot, which solves the problem that when the paint is not sprayed for marking for a long time, the mixing of the paint cannot be guaranteed, which affects the marking quality, and the paint spraying direction is single and cannot effectively adapt to the construction environment, resulting in poor flexibility in use.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an indoor marking robot, comprising a mobile base and a paint bucket arranged on the mobile base, a rotary drive assembly is arranged on the top of the mobile base, the paint bucket is fixedly installed on the top of the rotary drive assembly, a partition is fixedly installed inside the paint bucket, the partition is used to separate the paint bucket from top to bottom into a paint chamber and a tool chamber, the rotating end of the rotary drive assembly passes through the paint bucket and the partition in sequence, and is fixedly mounted with a stirring frame, a material pump is fixedly installed at the bottom of the inner cavity of the tool cavity, the input end of the material pump is connected to the inside of the paint cavity, and the output end of the material pump passes through the paint bucket and is connected to a spray catheter assembly.

[0006] The present invention is further configured as follows: the rotary drive assembly comprises an asynchronous motor, the output end of the asynchronous motor is fixedly mounted with a rotating shaft via a coupling, and the outer periphery of the rotating shaft is sleeved with a fixed disk;

[0007] The bottom of the paint bucket is fixedly connected to the top of the fixed disk, and the bottom of the fixed disk is in sliding contact with the top of the movable base. A blind hole is opened on the top of the movable base, and the asynchronous motor is fixedly installed at the bottom of the inner cavity of the blind hole.

[0008] The present invention is further configured as follows: an isolation tube is fixedly installed on the top of the partition, and the top end of the rotating shaft passes through the partition and the isolation tube in sequence.

[0009] The present invention is further configured as follows: the stirring frame comprises a stepped sleeve, a plurality of stirring ribs are evenly and fixedly installed on the outer circumference of the stepped sleeve, and the bottoms of the plurality of stirring ribs are in sliding contact with the top of the partition.

[0010] The present invention is further configured as follows: the stepped sleeve is sleeved and fixedly mounted on the outer periphery of the top end of the rotating shaft, and the bottom of the inner cavity of the stepped sleeve is used in coordination with the top of the outer periphery of the isolation tube.

[0011] The present invention is further configured as follows: an angle adjustment component is provided on the top of the paint bucket, and the angle adjustment component includes an electric cylinder and a hexagonal guide column, a first wedge block is fixedly installed on the telescopic end of the electric cylinder, and a second wedge block is fixedly connected to the top end of the hexagonal guide column, and the first wedge block and the second wedge block are used in combination.

[0012] The present invention is further configured as follows: the hexagonal guide column penetrates and is slidably mounted on the top of the paint bucket, the top of the rotating shaft is provided with a hexagonal blind groove used in conjunction with the hexagonal guide column, the outer circumference of the hexagonal guide column is also sleeved with a spring, and the two ends of the spring are in contact with the bottom of the second wedge block and the top of the paint bucket respectively;

[0013] The electric cylinder is fixedly installed on the top of the paint bucket.

[0014] The present invention is further configured as follows: a friction limiter assembly is further provided on the top of the fixed plate, the friction limiter assembly comprises an electric telescopic rod, a push plate is fixedly installed on the telescopic end of the electric telescopic rod, a pressure plate is fixedly installed on the bottom of the push plate through a connecting rod, and a rubber pad is fixedly installed on the bottom of the pressure plate;

[0015] The electric telescopic rod is fixedly installed on the top of the fixing plate, and a through slot matched with the pressing plate is opened on the top of the fixing plate.

[0016] The present invention is further configured as follows: the spraying conduit assembly includes a ground nozzle, the top of the ground nozzle is connected to a return pipe, one end of the return pipe is connected to the coating chamber, and one side of the return pipe is connected to a soft height nozzle;

[0017] One end of the ground nozzle is connected to the output end of the material pump, a first solenoid valve is arranged at the end of the ground nozzle away from the return pipe, a second solenoid valve is arranged at one end of the return pipe, and a third solenoid valve is arranged on the surface of the soft height nozzle.

[0018] The present invention is further configured as follows: a height adjustment component is provided on the top of the fixed plate, the height adjustment component includes a slide slot frame, a servo motor is fixedly installed on the top of the slide slot frame, a screw rod is fixedly connected to the output end of the servo motor through a coupling, the bottom end of the screw rod is rotatably connected to the top of the fixed plate through a bearing, an assembly plate frame is sleeved on the outer periphery of the screw rod and threadedly installed, and one end of the assembly plate frame is slidably connected to the inside of the slide slot frame;

[0019] The slide frame is fixedly mounted on the top of the fixed plate, and one end of the soft height nozzle penetrates through and is fixedly mounted on the other end of the assembly plate frame.

[0020] The present invention provides an indoor marking robot having the following beneficial effects:

[0021] (1) The present invention provides mixing conditions for the paint by coordinating the movable base, the rotary drive assembly, the paint barrel and the stirring frame. The arrangement of the material pump and the spray tube assembly provides convenient conditions for indoor marking. At the same time, with the arrangement of the angle adjustment assembly, the paint barrel can be rotated, which provides convenient adjustment for the spraying direction of the paint. The present invention has better flexibility in use and can effectively adapt to the marking work in complex indoor environments.

[0022] (2) The present invention ensures smooth ground marking by coordinating the ground nozzle, the first solenoid valve, the second solenoid valve and the third solenoid valve. The setting of the return pipe can effectively improve the mixing degree of the paint in the paint bucket. With the cooperation of the height adjustment component and the soft height nozzle, marking operations at different heights can be performed, and the marking range is more comprehensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the external structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the connection between the mobile base and the asynchronous motor structure of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the rotary drive assembly of the present invention;

[0026] Figure 4 It is a schematic diagram of the connection between the paint bucket, the stirring frame and the rotating shaft structure of the present invention;

[0027] Figure 5 It is a structural schematic diagram of the spray catheter assembly of the present invention;

[0028] Figure 6 It is a structural schematic diagram of the height adjustment assembly of the present invention;

[0029] Figure 7 It is a structural schematic diagram of the angle adjustment assembly of the present invention;

[0030] Figure 8 It is a schematic structural diagram of the friction limit assembly of the present invention.

[0031] In the figure:

[0032] 1. Mobile base; 101. Blind hole;

[0033] 2. Paint bucket; 201. Partition plate; 202. Paint chamber; 203. Tool chamber; 204. Isolation tube;

[0034] 3. Rotation drive assembly; 301. Asynchronous motor; 302. Rotating shaft; 303. Fixed plate; 304. Hexagonal blind groove; 305. Through groove;

[0035] 4. stirring frame; 401. stepped sleeve; 402. stirring rib frame;

[0036] 5. Material pump;

[0037] 6. Spraying catheter assembly; 601. Ground spray pipe; 602. Return pipe; 603. Soft height spray pipe; 604. First solenoid valve; 605. Second solenoid valve; 606. Third solenoid valve;

[0038] 7. Angle adjustment assembly; 701. Electric cylinder; 702. Hexagonal guide column; 703. First wedge block; 704. Second wedge block; 705. Spring;

[0039] 8. Friction limiter assembly; 801. Electric telescopic rod; 802. Push plate; 803. Press plate; 804. Rubber pad;

[0040] 9. Height adjustment component; 901. Slide frame; 902. Servo motor; 903. Screw rod; 904. Assembly plate frame. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0042] See also Figure 1-8 , the embodiment of the present invention provides the following two technical solutions:

[0043] Embodiment 1

[0044] An indoor marking robot comprises a mobile base 1 and a paint bucket 2 arranged on the mobile base 1, wherein a feeding pipe is connected to the top of the paint bucket 2, and a sealing cover is threadedly assembled on the feeding pipe. In order to achieve mixing of the paint stored in the paint bucket 2, a rotating drive assembly 3 is arranged on the top of the mobile base 1, and the rotating drive assembly 3 comprises an asynchronous motor 301, and a rotating shaft 302 is fixedly installed on the output end of the asynchronous motor 301 through a coupling, and a fixed disk 303 is sleeved on the outer periphery of the rotating shaft 302. The bottom of the paint bucket 2 is fixedly connected to the top of the fixed disk 303, and the bottom of the fixed disk 303 is in sliding contact with the top of the mobile base 1. A blind hole 101 is opened on the top of the mobile base 1, and the asynchronous motor 301 is fixedly installed in the inner cavity of the blind hole 101 At the bottom, a partition 201 is fixedly installed inside the paint bucket 2, and the partition 201 is used to separate the paint bucket 2 into a paint chamber 202 and a tool chamber 203 from top to bottom. An isolation tube 204 is fixedly installed on the top of the partition 201. The top of the rotating shaft 302 passes through the partition 201 and the isolation tube 204 in sequence. A stirring rack 4 is fixedly mounted on the outer periphery of the top of the rotating shaft 302. The stirring rack 4 includes a stepped sleeve 401, and a plurality of stirring ribs 402 are fixedly installed on the outer periphery of the stepped sleeve 401 at uniform intervals, and the bottoms of the plurality of stirring ribs 402 are in sliding contact with the top of the partition 201. In order to prevent the paint from entering the isolation tube 204, the bottom of the inner cavity of the stepped sleeve 401 is used in conjunction with the top of the outer periphery of the isolation tube 204.

[0045] As a preferred solution, in order to facilitate marking, a material pump 5 is fixedly installed at the bottom of the inner cavity of the tool cavity 203, the input end of the material pump 5 is connected to the interior of the paint cavity 202, the output end of the material pump 5 passes through the paint bucket 2, and is connected to a spray duct assembly 6, the spray duct assembly 6 includes a ground nozzle 601, one end of the ground nozzle 601 is connected to the output end of the material pump 5, and a first solenoid valve 604 is provided at the end of the ground nozzle 601 away from the return pipe 602.

[0046] As a preferred solution, in order to achieve convenient adjustment of the paint spraying direction, an angle adjustment component 7 is provided on the top of the paint bucket 2, and the angle adjustment component 7 includes an electric cylinder 701 and a hexagonal guide column 702. The electric cylinder 701 is fixedly installed on the top of the paint bucket 2, and the telescopic end of the electric cylinder 701 is fixedly installed with a first wedge block 703, and the top of the hexagonal guide column 702 is fixedly connected with a second wedge block 704. The first wedge block 703 and the second wedge block 704 are used in conjunction with each other, and the hexagonal guide column 702 passes through and is slidably installed on the top of the paint bucket 2. A hexagonal blind groove 304 used in conjunction with the hexagonal guide column 702 is provided on the top of the rotating shaft 302, and a spring 705 is also sleeved on the outer periphery of the hexagonal guide column 702, and the two ends of the spring 705 are respectively in contact with the bottom of the second wedge block 704 and the top of the paint bucket 2.

[0047] As a preferred solution, in order to ensure the stability of the relative position between the fixed plate 303 and the movable base 1, a friction limit assembly 8 is also provided on the top of the fixed plate 303, and the friction limit assembly 8 includes an electric telescopic rod 801, and the electric telescopic rod 801 is fixedly installed on the top of the fixed plate 303, and the telescopic end of the electric telescopic rod 801 is fixedly installed with a push plate 802, and the bottom of the push plate 802 is fixedly installed with a pressure plate 803 through a connecting rod, and the bottom of the pressure plate 803 is fixedly installed with a rubber pad 804, and the top of the fixed plate 303 is provided with a through groove 305 adapted to the pressure plate 803.

[0048] In this embodiment, not only can the paint be stirred, but the spraying direction of the paint can also be adjusted, which makes it more flexible to use.

[0049] Embodiment 2

[0050] As an improvement of the previous embodiment, in order to improve the paint mixing efficiency and realize the marking operation at different heights, the indoor marking robot also includes a return pipe 602 connected to the top of the ground nozzle 601, one end of the return pipe 602 is connected to the paint chamber 202, one end of the return pipe 602 is provided with a second solenoid valve 605, one side of the return pipe 602 is connected to a soft height nozzle 603, and the surface of the soft height nozzle 603 is provided with a third solenoid valve 606. In order to realize the marking operation at different heights, a height adjustment component 9 is provided on the top of the fixed plate 303. The height adjustment component 9 includes a slide frame 901, which is fixedly installed on the top of the fixed plate 303. A servo motor 902 is fixedly installed on the top of the slide frame 901. The output end of the servo motor 902 is fixedly connected to a screw rod 903 through a coupling. The bottom end of the screw rod 903 is rotatably connected to the top of the fixed plate 303 through a bearing. An assembly plate frame 904 is sleeved and threadedly installed on the outer periphery of the screw rod 903. One end of the assembly plate frame 904 is slidably connected to the inside of the slide frame 901. One end of the soft height nozzle 603 passes through and is fixedly installed on the other end of the assembly plate frame 904.

[0051] The advantages of the second embodiment over the first embodiment are that it can also realize marking lines of different heights and can also increase the mixing speed of the coating.

[0052] When the indoor marking robot is in use, paint is added to the paint bucket 2, and the asynchronous motor 301 is started. The asynchronous motor 301 drives the rotating shaft 302 to rotate the stepped sleeve 401, and the stepped sleeve 401 drives the stirring rib 402 to mix and stir the paint. It should be noted that the electric telescopic rod 801 is controlled to retract, and the electric telescopic rod 801 drives the push plate 802 to descend. The push plate 802 pushes the pressing plate 803 through the connecting rod to squeeze the rubber pad 804, and the friction between the rubber pad 804 and the mobile base 1 prevents the fixed plate 303 from rotating;

[0053] Close the first solenoid valve 604 and the third solenoid valve 606, start the material pump 5, and the material pump 5 delivers the paint to the ground spray pipe 601, and flows back to the paint chamber 202 through the return pipe 602 to accelerate mixing;

[0054] When marking the ground, the first solenoid valve 604 is opened, the second solenoid valve 605 and the third solenoid valve 606 are closed, and the paint is sprayed from the ground spray pipe 601 onto the ground, and the ground is marked with the movement of the mobile base 1;

[0055] When performing height marking, the third solenoid valve 606 is opened, the second solenoid valve 605 and the first solenoid valve 604 are closed, and the paint is sprayed out from the soft height nozzle 603. During the process, the servo motor 902 is controlled to rotate, and the servo motor 902 drives the screw rod 903 to rotate. The screw rod 903 drives the assembly plate frame 904 to drive the soft height nozzle 603 to move in the vertical direction. By controlling the forward and reverse rotation of the servo motor 902, marking at different heights can be achieved.

[0056] When the direction of paint spraying needs to be adjusted, the electric cylinder 701 is controlled to extend, and the electric cylinder 701 pushes the first wedge block 703 to move, and the first wedge block 703 squeezes the second wedge block 704 to move downward, and the second wedge block 704 squeezes the spring 705 downward, and pushes the hexagonal guide column 702 to insert it into the hexagonal blind groove 304. At this time, the rotating shaft 302 drives the hexagonal guide column 702 to rotate the paint bucket 2 and the fixed plate 303 to adjust the paint spraying direction, that is, adjust the direction of the ground nozzle 601 or the soft height nozzle 603 spraying paint in the circumferential direction. It should be noted that before the electric cylinder 701 is extended, the electric telescopic rod 801 is controlled to extend, and the electric telescopic rod 801 drives the push plate 802 to rise, and the push plate 802 drives the pressure plate 803 through the connecting rod to make the rubber pad 804 rise, so that the rubber pad 804 is separated from the movable base 1;

[0057] After the adjustment of the spraying direction of the paint is completed, the electric cylinder 701 is controlled to shrink and reset. During the process, the spring 705 pushes the second wedge block 704 to reset upward, and the second wedge block 704 drives the hexagonal guide column 702 to disengage from the hexagonal blind groove 304. Then the electric telescopic rod 801 is controlled to shrink, and the electric telescopic rod 801 drives the push plate 802 to descend. The push plate 802 pushes the pressure plate 803 through the connecting rod to squeeze the rubber pad 804, and the friction between the rubber pad 804 and the movable base 1 prevents the fixed plate 303 from rotating.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An indoor marking robot, comprising a mobile base (1) and a paint bucket (2) arranged on the mobile base (1), characterized in that: A rotary drive assembly (3) is arranged on the top of the mobile base (1); the paint bucket (2) is fixedly mounted on the top of the rotary drive assembly (3); a partition (201) is fixedly mounted inside the paint bucket (2); the partition (201) is used to sequentially separate the paint bucket (2) into a paint chamber (202) and a tool chamber (203) from top to bottom; the rotating end of the rotary drive assembly (3) sequentially passes through the paint bucket (2) and the partition (201) and is sleeved and fixed with a stirring frame (4); a material pump (5) is fixedly mounted at the bottom of the inner cavity of the tool chamber (203); the input end of the material pump (5) is connected to the inside of the paint chamber (202); the output end of the material pump (5) passes through the paint bucket (2) and is connected to a spraying conduit assembly (6).

2. The indoor marking robot according to claim 1, characterized in that: The rotary drive assembly (3) comprises an asynchronous motor (301), the output end of the asynchronous motor (301) is fixedly mounted with a rotating shaft (302) via a coupling, and the outer periphery of the rotating shaft (302) is sleeved with a fixed disk (303); The bottom of the paint bucket (2) is fixedly connected to the top of the fixed plate (303), and the bottom of the fixed plate (303) is in sliding contact with the top of the mobile base (1). A blind hole (101) is provided on the top of the mobile base (1), and the asynchronous motor (301) is fixedly mounted at the bottom of the inner cavity of the blind hole (101).

3. The indoor marking robot according to claim 2, characterized in that: An isolation tube (204) is fixedly mounted on the top of the partition (201), and the top end of the rotating shaft (302) is sequentially arranged through the partition (201) and the isolation tube (204).

4. The indoor marking robot according to claim 3, characterized in that: The stirring frame (4) comprises a stepped sleeve (401), and a plurality of stirring ribs (402) are fixedly installed at even intervals on the outer circumference of the stepped sleeve (401), and the bottoms of the plurality of stirring ribs (402) are in sliding contact with the top of the partition (201).

5. The indoor marking robot according to claim 4, characterized in that: The stepped sleeve (401) is sleeved and fixedly mounted on the outer periphery of the top end of the rotating shaft (302), and the bottom of the inner cavity of the stepped sleeve (401) is used in conjunction with the top of the outer periphery of the isolation tube (204).

6. The indoor marking robot according to claim 5, characterized in that: An angle adjustment assembly (7) is arranged on the top of the paint bucket (2), and the angle adjustment assembly (7) comprises an electric cylinder (701) and a hexagonal guide column (702). A first wedge block (703) is fixedly mounted on the telescopic end of the electric cylinder (701), and a second wedge block (704) is fixedly connected to the top end of the hexagonal guide column (702). The first wedge block (703) and the second wedge block (704) are used in conjunction with each other.

7. The indoor marking robot according to claim 6, characterized in that: The hexagonal guide column (702) penetrates and is slidably mounted on the top of the paint bucket (2); the top of the rotating shaft (302) is provided with a hexagonal blind groove (304) for use with the hexagonal guide column (702); the outer circumference of the hexagonal guide column (702) is also sleeved with a spring (705); the two ends of the spring (705) are respectively in contact with the bottom of the second wedge block (704) and the top of the paint bucket (2); The electric cylinder (701) is fixedly mounted on the top of the paint bucket (2).

8. The indoor marking robot according to claim 7, characterized in that: A friction limiter assembly (8) is also provided on the top of the fixed plate (303), and the friction limiter assembly (8) comprises an electric telescopic rod (801), a push plate (802) is fixedly mounted on the telescopic end of the electric telescopic rod (801), a pressing plate (803) is fixedly mounted on the bottom of the pushing plate (802) via a connecting rod, and a rubber pad (804) is fixedly mounted on the bottom of the pressing plate (803); The electric telescopic rod (801) is fixedly mounted on the top of the fixed plate (303), and a through slot (305) matching the pressing plate (803) is formed on the top of the fixed plate (303).

9. The indoor marking robot according to claim 2, characterized in that: The spraying conduit assembly (6) comprises a ground spray pipe (601), the top of the ground spray pipe (601) is connected to a return pipe (602), one end of the return pipe (602) is connected to the coating chamber (202), and one side of the return pipe (602) is connected to a soft height spray pipe (603); One end of the ground nozzle (601) is connected to the output end of the material pump (5), a first solenoid valve (604) is provided at one end of the ground nozzle (601) away from the return pipe (602), a second solenoid valve (605) is provided at one end of the return pipe (602), and a third solenoid valve (606) is provided on the surface of the soft height nozzle (603).

10. The indoor marking robot according to claim 9, characterized in that: A height adjustment component (9) is arranged on the top of the fixed plate (303), and the height adjustment component (9) comprises a slide groove frame (901), a servo motor (902) is fixedly installed on the top of the slide groove frame (901), an output end of the servo motor (902) is fixedly connected to a screw rod (903) via a coupling, a bottom end of the screw rod (903) is rotatably connected to the top of the fixed plate (303) via a bearing, an assembly plate frame (904) is sleeved on the outer periphery of the screw rod (903) and threadedly installed, and one end of the assembly plate frame (904) is slidably connected to the inside of the slide groove frame (901); The slide frame (901) is fixedly mounted on the top of the fixed plate (303), and one end of the soft height nozzle (603) passes through and is fixedly mounted on the other end of the assembly plate frame (904).