Feeding and discharging system for cleaning machine and using method of feeding and discharging system

By designing the loading and unloading system for cleaning machines, automatic loading and unloading operations for cleaning workpieces are achieved using automatic conveyors and pushing components, the problems of low efficiency and safety hazards of traditional cleaning machines are solved, and cleaning efficiency and safety are improved.

CN119796907APending Publication Date: 2025-04-11AIR FORCE ENG UNIV OF PLA AIRCRAFT MAINTENACE MANAGEMENT SERGEANT SCHOOL
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Patent Information

Application Number
CN202510256854.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-05
Publication Date
2025-04-11

AI Technical Summary

Technical Problem

Traditional cleaning machines are inefficient and have safety hazards in loading and unloading operations, and require manual assistance.

Method used

A loading and unloading system for cleaning machines is designed, including a conveying mechanism and a feeding and discharge mechanism, and automatic loading and unloading operations for cleaning workpieces through automatic conveyors and pushing components.

Benefits of technology

It greatly improves the loading and unloading efficiency and safety of the workpiece to be cleaned, makes the operation more convenient and efficient, and avoids magnetic influence through the demagnetizer, extending the service life of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a feeding and discharging system for a cleaning machine and a using method thereof.The feeding and discharging system comprises a conveying mechanism located on the outer side of a cleaning cavity of a cleaning mechanism, the conveying direction of the conveying mechanism is perpendicular to the axis direction of the cleaning cavity, and a feeding and discharging mechanism is arranged on the conveying mechanism and located in the axis direction of the cleaning cavity; a placing frame of a to-be-cleaned workpiece is conveyed to the axis of the cleaning cavity through the conveying mechanism, and the placing frame is pushed to move in the axis direction of the cleaning cavity in cooperation with the feeding and discharging mechanism. A to-be-cleaned workpiece can be automatically pushed into the cleaning cavity through the feeding and discharging mechanism for efficient cleaning operation, the to-be-cleaned workpiece is automatically pushed out through the feeding and discharging mechanism after cleaning is completed, automatic discharging operation of materials is achieved, and the feeding and discharging efficiency and safety of the to-be-cleaned workpiece are greatly improved; the operation is more convenient and efficient.
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Description

Technical Field

[0001] The present invention relates to the technical field of loading and unloading equipment, and in particular to a loading and unloading system for a cleaning machine and a use method thereof. Background Art

[0002] Vacuum hydrocarbon cleaning machine is a cleaning equipment for cleaning precision industrial parts. It uses hydrocarbon solvent as the cleaning medium and combines vacuum technology to perform efficient and environmentally friendly cleaning operations. This cleaning machine is widely used in the cleaning of precision parts, optical instruments, electronic components and other fields. The working principle of hydrocarbon solvent vacuum cleaning machine is mainly to achieve efficient cleaning through vacuum environment and the special properties of hydrocarbon solvent. In a vacuum environment, the gas pressure is reduced, so that the boiling point of hydrocarbon solvent is also reduced, so that cleaning can be performed at a lower temperature. This can not only improve the cleaning efficiency, but also avoid damage to the cleaned items due to high temperature.

[0003] When traditional cleaning machines are cleaning workpieces, most of them still require manual assistance for the loading and unloading operations of the workpieces to be cleaned. This method greatly reduces the loading and unloading efficiency of the cleaning machine, thereby reducing the cleaning efficiency of the cleaning machine. In addition, during the loading and unloading process, there is a risk of workpieces falling and being damaged or injuring operators due to operational errors, which poses certain safety hazards. Summary of the invention

[0004] In view of this, the present invention provides a loading and unloading system for a cleaning machine and a method of using the same, which can realize automatic loading and unloading operations of workpieces to be cleaned, greatly improving the loading and unloading efficiency of the workpieces to be cleaned, and making the operation safer, more convenient and efficient.

[0005] In order to solve the above technical problems, the present invention provides a loading and unloading system for a cleaning machine and a method of using the system, including a conveying mechanism located outside a cleaning chamber of the cleaning mechanism, the conveying direction of the conveying mechanism is perpendicular to the axial direction of the cleaning chamber, and a feeding and discharging mechanism is provided on the conveying mechanism and located in the axial direction of the cleaning chamber. The placement frame of the workpiece to be cleaned is conveyed to the axis of the cleaning chamber by the conveying mechanism, and the placement frame is pushed to move along the axial direction of the cleaning chamber in cooperation with the feeding and discharging mechanism. The present invention can realize automatic transmission and feeding of materials through the conveying mechanism, and can realize automatic pushing of the workpiece to be cleaned into the cleaning chamber for efficient cleaning through the feeding and discharging mechanism, and realize automatic pushing out of the workpiece to be cleaned through the feeding and discharging mechanism after cleaning, thereby greatly improving the efficiency and safety of loading and unloading the workpiece to be cleaned, and making the operation more convenient and efficient.

[0006] The conveying mechanism includes an automatic conveyor located outside the cleaning chamber, the feeding and discharging mechanism includes a through slot opened on the automatic conveyor located on the axis of the cleaning chamber, a frame is arranged inside the through slot, a pushing assembly is arranged on the frame, a lifting assembly is arranged on the pushing assembly, the pushing assembly can push the placement frame conveyed by the automatic conveyor to move along the axis direction of the cleaning chamber, the lifting assembly is used to lift the vertical height of the placement frame, the present invention can realize the automatic conveying operation of the placement frame of the workpiece to be cleaned through the automatic conveyor, and can realize the pushing operation of the placement frame of the workpiece to be cleaned along the axis direction of the cleaning chamber through the pushing assembly, and can realize the convenient and fast adjustment operation of the vertical height of the placement frame of the workpiece to be cleaned through the lifting assembly, and the operation is more convenient.

[0007] The pushing assembly includes a first telescopic push rod arranged on the frame, a lifting seat is arranged at the end of the output rod of the first telescopic push rod, and the lifting assembly is arranged on the lifting seat. The present invention can push the lifting seat and the lifting assembly thereon to move along the axial direction of the first telescopic push rod through the extension and retraction of the output rod of the first telescopic push rod, which is more convenient to operate.

[0008] The lifting assembly includes a second telescopic push rod arranged on the lifting seat, and a clamping plate is arranged at the end of the output rod of the second telescopic push rod. The clamping plate can move upward to the frame of the cleaning frame when the output rods of the first telescopic push rod and the second telescopic push rod are extended. The present invention can adjust the height of the cleaning frame while pushing the clamping plate on the upper part thereof up and down under the action of the extension and retraction of the output rod of the second telescopic push rod, so that the position of the cleaning frame can be moved in coordination with the extension and retraction of the output rod of the first telescopic push rod, and the operation is more convenient.

[0009] The first telescopic push rod and the second telescopic push rod are both electric push rods or hydraulic push rods.

[0010] A demagnetizer is also provided on the fixed frame of the automatic conveyor. The present invention can realize the demagnetization operation of the workpiece to be cleaned in the cleaning frame, especially the iron and steel castings, through the demagnetizer, to avoid the workpiece being adsorbed on the placement frame due to magnetism during cleaning, resulting in poor cleaning effect, and even adsorbed on the conveying chain plate of the automatic conveyor, causing the conveying operation of the automatic conveyor to be blocked and jammed, affecting the loading and unloading efficiency of the workpiece.

[0011] A card slot that is compatible with the frame of the placement frame is provided on the card plate, and the width of the card slot is compatible with the width of the frame. The present invention can realize the convenient and rapid movement of the placement frame inserted into the card slot through the card setting effect of the card slot and the frame of the placement frame in cooperation with the action of the first telescopic push rod and the second telescopic push rod, and the operation is more convenient.

[0012] Guide rails are respectively arranged on the frames at both sides of the first telescopic push rod, and guide blocks are arranged on each guide rail. A card frame is placed between the two guide blocks, and the placement frame can be placed in the card frame. The present invention can realize the limit card setting operation of the placement frame through the card frame, and the extension and retraction of the output rod of the first telescopic push rod can make the movement of the placement frame more stable through the cooperation of the guide blocks and the guide rails, thereby greatly improving the service life of the feeding and discharging mechanism.

[0013] A method for using a loading and unloading system for a cleaning machine comprises the following steps:

[0014] S1. The workpiece to be cleaned is placed in the placement frame, and the workpiece to be cleaned is placed in the placement frame manually or with the help of a robot;

[0015] S2. Demagnetize the workpiece to be cleaned. Start the conveying mechanism to transfer the placement frame containing the workpiece to be cleaned to the bottom of the demagnetizer. Then close the conveying mechanism and start the demagnetizer to demagnetize the placement frame and the workpiece therein. The demagnetization time is 30S±10S.

[0016] S3, after demagnetization is completed, the conveying mechanism is started to convey the placement frame to the feeding and discharging mechanism;

[0017] S4, opening the door of the cleaning chamber, starting the feeding and discharging mechanism to place the placement frame into the cleaning chamber;

[0018] S5, start the feed and discharge mechanism to reset, close the door of the cleaning chamber, and start the cleaning operation;

[0019] S6, after the cleaning is completed, the cleaning liquid is discharged and the cleaning chamber is dried. After the drying is completed, the door of the cleaning chamber is opened;

[0020] S7, start the feeding and discharging mechanism to take the placement frame of the cleaned workpiece out of the cleaning chamber;

[0021] S8, start the feeding and discharging mechanism to reset, and at the same time start the transmission mechanism to transfer the placement frame containing the cleaned workpieces to the required workstation.

[0022] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The present invention can realize automatic and efficient transportation and automatic loading and unloading operations of the workpiece to be cleaned through the automatic loading and unloading mechanism, and cooperate with the cleaning mechanism to realize efficient cleaning of the workpiece to be cleaned and automatic loading and unloading operations, which makes the operation safer and more convenient.

[0024] 2. When the material to be cleaned needs to be automatically loaded and unloaded, the operator starts the conveying mechanism to transfer the placement frame of the workpiece to be cleaned to the loading and unloading mechanism, and then starts the loading and unloading mechanism to realize the automatic loading and unloading of the workpiece to be cleaned, which greatly improves the efficiency and safety of loading and unloading the workpiece to be cleaned.

[0025] 3. The present invention can use a demagnetizer to demagnetize the workpieces conveyed by the conveying mechanism, so as to avoid the workpieces being adsorbed on the placement frame due to the effect of magnetism, which affects the subsequent cleaning operation of the workpieces, and the problem that the magnetism of the workpieces will affect the transmission efficiency of the transmission mechanism due to the adsorption effect of the conveying chain plate.

[0026] 4. The present invention can realize the limit clamping operation of the placement frame through the clamping frame, and the extension and retraction of the output rod of the first telescopic push rod can make the movement of the placement frame more stable through the cooperation of the guide block and the guide rail, thereby greatly improving the service life of the feeding and discharging mechanism.

[0027] 5. The present invention can realize the convenient and rapid movement of the placement frame inserted into the slot through the locking action of the slot and the frame of the placement frame in cooperation with the first telescopic push rod and the second telescopic push rod, making the operation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of a loading and unloading system and a cleaning device for a cleaning machine of the present invention;

[0029] Figure 2 It is a structural schematic diagram of a loading and unloading system and a cleaning device for a part of the cleaning machine of the present invention;

[0030] Figure 3 It is a structural schematic diagram of the feeding and discharging mechanism in the feeding system for the cleaning machine of the present invention;

[0031] Figure 4 It is a structural schematic diagram of the material pushing assembly in the material feeding and discharging mechanism of the present invention;

[0032] Figure 5 The present invention is a process flow chart of the method for using the loading and unloading system for the cleaning machine.

[0033] Explanation of the reference numerals: 100, cleaning mechanism; 101, cleaning chamber; 102, placement frame; 200, conveying mechanism; 300, feeding and discharging mechanism; 310, through slot; 320, frame; 330, pushing assembly; 331, first telescopic push rod; 332, lifting seat; 340, lifting assembly; 341, second telescopic push rod; 342, clamping plate; 400, demagnetizer; 500, guide rail; 600, guide block; 700, clamping frame. DETAILED DESCRIPTION

[0034] To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the following will be combined with the appended drawings of the embodiments of the present invention. Figure 1-5 , the technical scheme of the embodiment of the present invention is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0035] like Figure 1 and Figure 2 As shown: This embodiment provides a loading and unloading system for a cleaning machine and a method of using the same, including a conveying mechanism 200 located outside a cleaning chamber 101 of a cleaning mechanism 100, wherein the conveying direction of the conveying mechanism 200 is perpendicular to the axial direction of the cleaning chamber 101, and the purpose of this is to ensure that a placement frame 102 containing workpieces to be cleaned is smoothly moved to the point where the placement frame 102 coincides with the axis of the cleaning chamber 101, so as to facilitate smooth pushing of the workpieces into the cleaning chamber 101, and an in-and-out material mechanism 300 is provided on the conveying mechanism 200 and located in the axial direction of the cleaning chamber 101, and the placement frame 102 of the workpieces to be cleaned is conveyed to the axis of the cleaning chamber 101 by the conveying mechanism 200, and the in-and-out material mechanism 300 is provided. The material mechanism 300 pushes the placement frame 102 to move along the axial direction of the cleaning chamber 101, and the feed-in and feed-out mechanism 300 and the placement frame 102 are clamped together, and the axis of the feed-in and feed-out mechanism 300 and the axis of the placement frame 102 are located on the same vertical plane. The present invention can realize automatic transmission and feeding of materials through the conveying mechanism 200, and can realize automatic pushing of the workpiece to be cleaned into the cleaning chamber 101 for efficient cleaning through the feed-in and feed-out mechanism 300, and realize automatic pushing out of the workpiece to be cleaned after cleaning is completed through the feed-in and feed-out mechanism 300 to realize automatic discharging of the material, which greatly improves the efficiency and safety of loading and unloading the workpiece to be cleaned, and makes the operation more convenient and efficient.

[0036] According to one embodiment of the present invention, Figure 1As shown, the conveying mechanism 200 includes an automatic conveyor located outside the cleaning chamber 101, the automatic conveyor is a chain plate type automatic conveying mechanism, the chain plate is made of cast steel, the automatic conveyor relies on a motor to drive the chain with the sprocket at the end of the conveying roller and the conveying roller to rotate, so as to realize the automatic conveying operation of the workpiece placement frame 102, the feeding and discharging mechanism 300 includes a through slot 310 opened on the automatic conveyor located on the axis of the cleaning chamber 101, a frame 320 is arranged inside the through slot 310, a pushing assembly 330 is arranged on the frame 320, a lifting assembly 340 is arranged on the pushing assembly 330, and the pushing assembly 330 can push the placement frame 102 transmitted by the automatic conveyor to move along the axial direction of the cleaning chamber 101, and the lifting component 340 is used to increase the vertical height of the placement frame 102. The present invention can realize the automatic transportation operation of the placement frame 102 for the workpiece to be cleaned through the automatic conveyor, and can push the placement frame 102 of the workpiece to be cleaned along the axial direction of the cleaning chamber 101 through the pushing component 330, and can conveniently and quickly adjust the vertical height of the placement frame 102 of the workpiece to be cleaned through the lifting component 340, which is more convenient to operate.

[0037] According to another embodiment of the present invention, Figure 2 and Figure 3 As shown, the pushing assembly 330 includes a first telescopic push rod 331 arranged on the frame 320, the first telescopic push rod 331 is an electric push rod or a hydraulic push rod, and a lifting seat 332 is arranged at the end of the output rod of the first telescopic push rod 331, and the lifting assembly 340 is arranged on the lifting seat 332. The present invention can push the lifting seat 332 and the lifting assembly 340 thereon along the axial direction of the first telescopic push rod 331 through the extension and retraction of the output rod of the first telescopic push rod 331, and the operation is more convenient.

[0038] According to another embodiment of the present invention, Figure 1 and Figure 4 As shown, the lifting assembly 340 includes a second telescopic push rod 341 arranged on the lifting seat 332, the second telescopic push rod 341 is an electric push rod or a hydraulic push rod, and a clamping plate 342 is arranged at the end of the output rod of the second telescopic push rod 341, and the clamping plate 342 can move upward to be clamped on the frame of the cleaning frame when the output rods of the first telescopic push rod 331 and the second telescopic push rod 341 are extended. The present invention can adjust the height of the cleaning frame while pushing the clamping plate 342 on its upper part to move up and down under the action of the extension and retraction of the output rod of the second telescopic push rod 341, so as to facilitate the movement of the position of the cleaning frame in coordination with the extension and retraction of the output rod of the first telescopic push rod 331, and the operation is more convenient.

[0039] According to another embodiment of the present invention, Figure 1 and Figure 2 As shown, a demagnetizer 400 is also provided on the fixed frame of the automatic conveyor.

[0040] The present invention can achieve demagnetization of the workpieces to be cleaned in the cleaning frame, especially iron and steel castings, through the demagnetizer 400, to avoid them being adsorbed on the placement frame 102 due to magnetism during cleaning, resulting in poor cleaning effect, and even adsorbed on the conveying chain plate of the automatic conveyor, causing the conveying operation of the automatic conveyor to be blocked and jammed, affecting the loading and unloading efficiency of the workpieces.

[0041] A card slot that is compatible with the frame of the placement frame 102 is provided on the card plate 342, and the width of the card slot is compatible with the width of the frame. The present invention can realize the convenient and rapid movement of the placement frame 102 inserted into the card slot through the carding effect of the card slot and the frame of the placement frame 102, in cooperation with the action of the first telescopic push rod 331 and the second telescopic push rod 341, making the operation more convenient.

[0042] Guide rails 500 are respectively arranged on the frame 320 located on both sides of the first telescopic push rod 331, and each guide rail 500 is provided with a guide block 600. A card frame 700 is placed between the two guide blocks 600, and the placement frame 102 can be placed in the card frame 700. The present invention can realize the limit card setting operation of the placement frame 102 through the card frame 700, and the extension and retraction of the output rod of the first telescopic push rod 331 can make the movement of the placement frame 102 more stable through the cooperation of the guide block 600 and the guide rail 500, thereby greatly improving the service life of the feeding and discharging mechanism 300.

[0043] Method of use of the present invention:

[0044] First of all, it should be clear that the automatic loading and unloading system involved in the present invention is mainly used for automatic loading and unloading operations during the cleaning process of aircraft parts such as bearings, actuators, central cones, reducers, rear supports and the like. The present invention takes the loading and unloading of the rear support during the cleaning process as an example to explain its use method in detail. When the workpiece needs to be cleaned, follow the following steps, such as Figure 5 As shown:

[0045] S1, the workpiece to be cleaned is loaded into the placement frame 102, the workpiece to be cleaned is placed into the placement frame 102 manually or with the help of a robot, and then the upper part of the placement frame 102 is closed, which can be closed with the help of a frame plate;

[0046] S2, demagnetizing the workpiece to be cleaned, starting the conveying mechanism 200 to transfer the placement frame 102 containing the workpiece to be cleaned to the bottom of the demagnetizing machine 400, then closing the conveying mechanism 200, starting the demagnetizing machine 400 to demagnetize the placement frame 102 and the workpiece therein, and the demagnetization time is 30S±10S;

[0047] S3, after demagnetization is completed, the conveying mechanism 200 is started to convey the placement frame 102 to the feeding and discharging mechanism 300, and the automatic conveyor is started to move to convey the placement frame 102 containing the workpiece to the top of the clamping frame 700 of the feeding and discharging mechanism 300;

[0048] S4, open the door of the cleaning chamber 101, start the feeding and discharging mechanism 300 to put the placement frame 102 into the cleaning chamber 101, start the output rod of the second telescopic push rod 341 to extend, push the card frame 700 and the card plate 342 on the upper part of the card frame 700 to move upward to the frame where the card slot can enter the placement frame 102, until it is lifted to the bottom and separated from the conveying chain plate, and then continue to start the output rod of the first telescopic push rod 331 to extend until the placement frame 102 containing the workpiece is moved into the cleaning chamber 101;

[0049] S5, start the feeding and discharging mechanism 300 to reset, first start the output rod of the second telescopic push rod 341 to retract until the clamping plate 342 is separated from the placement frame 102, then start the output rod of the first telescopic push rod 331 to retract until the placement frame 102 is pulled out of the cleaning chamber 101, and then close the chamber door of the cleaning chamber 101 to start the cleaning operation;

[0050] S6, after the cleaning is completed, the cleaning liquid is discharged and the process is dried. After the drying is completed, the door of the cleaning chamber 101 is opened;

[0051] S7, start the feeding and discharging mechanism 300 to take the placement frame 102 of the cleaned workpiece out of the cleaning chamber 101, start the output rod of the first telescopic push rod 331 to extend to the clamping plate 342 and move to the position directly below the placement frame 102 in the cleaning chamber 101, then start the output rod of the second telescopic push rod 341 to extend to the clamping slot on the clamping plate 342 and clamp it into the frame of the placement frame 102, then start the output rod of the first telescopic push rod 331 to retract until the placement frame 102 is pulled out of the cleaning chamber 101;

[0052] S8, start the feeding and discharging mechanism 300 to reset, first start the output rod of the second telescopic push rod 341 to retract until the clamping plate 342 is separated from the placement frame 102, and at the same time start the automatic conveyor of the transmission mechanism to transport the cleaned placement frame 102 containing the workpiece to the required workstation.

[0053] The present invention can realize automatic loading and unloading operations of the workpiece to be cleaned through the conveying mechanism 200 cooperating with the feeding and discharging mechanism 300, which greatly improves the loading and unloading efficiency of the material, thereby achieving the purpose of improving the cleaning efficiency, and the operation is safer and more convenient.

[0054] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] The above is 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 principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A loading and unloading system for a cleaning machine, comprising a conveying mechanism (200) located outside a cleaning chamber (101) of a cleaning mechanism (100), characterized in that: The conveying direction of the conveying mechanism (200) is perpendicular to the axial direction of the cleaning chamber (101); a feeding and discharging mechanism (300) is provided on the conveying mechanism (200) and located in the axial direction of the cleaning chamber (101); a placement frame (102) of a workpiece to be cleaned is conveyed to the axial direction of the cleaning chamber (101) via the conveying mechanism (200); and the placement frame (102) is pushed to move along the axial direction of the cleaning chamber (101) in cooperation with the feeding and discharging mechanism (300).

2. The loading and unloading system for a cleaning machine according to claim 1, characterized in that: The conveying mechanism (200) comprises an automatic conveyor located outside the cleaning chamber (101); the material feeding and discharging mechanism (300) comprises a through slot (310) provided on the automatic conveyor located on the axis of the cleaning chamber (101); a frame (320) is arranged inside the through slot (310); a pushing assembly (330) is arranged on the frame (320); a lifting assembly (340) is arranged on the pushing assembly (330); the pushing assembly (330) can push the placement frame (102) conveyed by the automatic conveyor to move along the axis direction of the cleaning chamber (101); and the lifting assembly (340) is used to lift the vertical height of the placement frame (102).

3. The loading and unloading system for a cleaning machine as claimed in claim 2, characterized in that: The material pushing assembly (330) comprises a first telescopic push rod (331) arranged on the frame (320), a lifting seat (332) is arranged at the output rod end of the first telescopic push rod (331), and the lifting assembly (340) is arranged on the lifting seat (332).

4. The loading and unloading system for a cleaning machine as claimed in claim 3, characterized in that: The lifting assembly (340) includes a second telescopic push rod (341) arranged on the lifting seat (332), and a clamping plate (342) is arranged at the end of the output rod of the second telescopic push rod (341). The clamping plate (342) can move upward to the frame of the cleaning frame when the output rods of the first telescopic push rod (331) and the second telescopic push rod (341) are extended.

5. The loading and unloading system for a cleaning machine as claimed in claim 4, characterized in that: The first telescopic push rod (331) and the second telescopic push rod (341) are both electric push rods or hydraulic push rods.

6. The loading and unloading system for a cleaning machine as claimed in claim 5, characterized in that: A demagnetizer (400) is also arranged on the fixed frame of the automatic conveyor.

7. The loading and unloading system for a cleaning machine as claimed in claim 6, characterized in that: The card plate (342) is provided with a card slot adapted to the frame of the placement frame (102).

8. The loading and unloading system for a cleaning machine as claimed in claim 7, characterized in that: Guide rails (500) are respectively arranged on the frames (320) located on both sides of the first telescopic push rod (331), each of the guide rails (500) is provided with a guide block (600), a card frame (700) is placed between the two guide blocks (600), and the placement frame (102) can be placed in the card frame (700).

9. A method for using a loading and unloading system for a cleaning machine, characterized in that: The steps include: S1, the workpiece to be cleaned is placed in a placement frame (102); S2, demagnetizing the workpiece to be cleaned; S3, after demagnetization is completed, the conveying mechanism (200) is started to convey the placement frame (102) to the feeding and discharging mechanism (300); S4, opening the door of the cleaning chamber (101), starting the material loading and unloading mechanism (300) to place the placement frame (102) into the cleaning chamber (101); S5, starting the material feeding and discharging mechanism (300) to reset, closing the door of the cleaning chamber (101), and starting the cleaning operation; S6. After the cleaning is completed, the door of the cleaning chamber (101) is opened; S7, starting the feeding and discharging mechanism (300) to take the placement frame (102) of the cleaned workpiece out of the cleaning chamber (101); S8, starting the feeding and discharging mechanism (300) to reset, and at the same time starting the transmission mechanism to transfer the placement frame (102) containing the cleaned workpieces to the required workstation.

10. The method for using the loading and unloading system for a cleaning machine according to claim 9, characterized in that: The demagnetization time in S2 is 30S±10S.