Clamping device for plastic barrel cleaning machine

Abstract

The utility model relates to a clamping device for a plastic barrel cleaning machine, the clamping device comprises a driving part, a barrel bottom fixing assembly and a barrel opening fixing assembly, the barrel bottom fixing assembly and the barrel opening fixing assembly are sequentially arranged on the cleaning machine, and a placing area for placing a plastic barrel is formed between the barrel bottom fixing assembly and the barrel opening fixing assembly. When a plastic barrel is placed in the containing area, the barrel bottom fixing assembly is used for fixing the bottom of the plastic barrel, the barrel opening fixing assembly moves towards the opening of the plastic barrel along the cleaning machine and abuts against the opening of the plastic barrel, and the driving part is arranged on the side, close to the barrel bottom fixing assembly, of the cleaning machine. The driving part is used for driving the barrel bottom fixing assembly to rotate along the cleaning machine. The plastic barrel cleaning device has the effect of improving the cleanliness of plastic barrel cleaning.

Description

Technical Field

[0001] The present application relates to the field of plastic barrel production, and in particular to a clamping device for a plastic barrel cleaning machine. Background Art

[0002] Plastic barrels are light and easy to carry, corrosion-resistant, durable, low-cost and highly plastic. They are suitable for various occasions, such as household storage, industrial raw material storage, agricultural use, chemical transportation, etc., and can meet different needs through different designs and material selections. They are a multifunctional container.

[0003] After plastic barrels are injection molded, they need to be placed uniformly due to their large number. However, since plastic barrels are mostly made of plastic materials, they are easy to absorb dust and foreign matter, making it difficult for the surface of the plastic barrels to meet the cleanliness requirements. Therefore, when the plastic barrels need to be used, they need to be rinsed to remove the dust and foreign matter adsorbed on the surface of the plastic barrels.

[0004] There is a cleaning machine that uses a controller to control a high-pressure water gun to spray high-pressure water to a plastic barrel, and cooperates with a brush of the cleaning machine to complete the cleaning process. After the cleaning is completed, the water stains on the surface of the plastic barrel are removed again by the drying system of the cleaning machine. However, during the cleaning process of the plastic barrel by the cleaning machine, because the plastic barrel is in an unfixed state, the plastic barrel is affected by the water pressure during the cleaning process of the plastic barrel by the cleaning machine, resulting in positional displacement, causing some areas of the plastic barrel to be unable to be completely cleaned, and some foreign matter and dust will still remain on the surface of the plastic barrel. The cleaning efficiency is relatively low, and there is room for improvement. Utility Model Content

[0005] In order to improve the cleanliness of plastic barrel cleaning, the present application provides a clamping device for a plastic barrel cleaning machine.

[0006] The clamping device for a plastic barrel cleaning machine provided in the present application adopts the following technical solution:

[0007] A clamping device for a plastic barrel cleaning machine comprises a driving member, a barrel bottom fixing assembly and a barrel mouth fixing assembly, wherein the barrel bottom fixing assembly and the barrel mouth fixing assembly are sequentially arranged on the cleaning machine, and a placement area for placing a plastic barrel is formed between the barrel bottom fixing assembly and the barrel mouth fixing assembly. When the plastic barrel is placed in the placement area, the barrel bottom fixing assembly is used to fix the barrel bottom of the plastic barrel, and the barrel mouth fixing assembly moves along the cleaning machine toward the barrel mouth of the plastic barrel and abuts against the barrel mouth of the plastic barrel. The driving member is arranged on the cleaning machine near the side of the barrel bottom fixing assembly, and the driving member is used to drive the barrel bottom fixing assembly to rotate along the cleaning machine.

[0008] By adopting the above technical solution, when the plastic barrel needs to be cleaned, the operator places the plastic barrel in the placement area. At this time, the mouth of the plastic barrel faces the mouth fixing assembly, and the bottom of the plastic barrel faces the bottom fixing assembly. The mouth of the plastic barrel is fixed by the mouth fixing assembly, and the bottom of the plastic barrel is fixed by the bottom fixing assembly. Then, the bottom fixing assembly is driven by the driving member to rotate along the cleaning machine, thereby driving the plastic barrel to rotate along the cleaning machine, so that the plastic barrel is relatively comprehensively cleaned along the cleaning machine. When the plastic barrel is cleaned, the mouth fixing assembly moves away from the mouth of the plastic barrel along the cleaning machine and separates from the mouth of the plastic barrel. The plastic barrel after cleaning falls off the placement area, which is convenient for the subsequent cleaning procedure and plays a positive guiding role in improving the cleanliness of the plastic barrel cleaning.

[0009] Preferably, the barrel bottom fixing assembly includes a carrying plate, the driving member is connected to the carrying plate, the driving member drives the carrying plate to rotate along the cleaning machine, and the carrying plate is provided with a limiting groove adapted to the contour of the bottom of the plastic barrel. When the plastic barrel is placed in the placement area, the bottom of the plastic barrel is located in the limiting groove.

[0010] By adopting the above technical solution, the plastic barrel is supported by the supporting plate, thereby reducing the probability of the plastic barrel falling off the cleaning machine when the plastic barrel is driven to rotate along the cleaning machine by the driving member. At the same time, the position of the bottom of the plastic barrel on the supporting plate is limited by the limiting groove, which is conducive to reducing the deflection of the plastic barrel during rotation and improving the stability of the cleaning process of the plastic barrel by the cleaning machine.

[0011] Preferably, the barrel mouth fixing assembly includes a first driving cylinder and a clamping piece, the first driving cylinder is arranged on the cleaning machine, the piston rod of the first driving cylinder movably passes through the cleaning machine and is connected to the clamping piece, and the piston rod of the first driving cylinder is rotatably connected to the clamping piece, and the first driving cylinder is used to drive the clamping piece to abut against the barrel mouth of the plastic barrel, or the clamping piece is separated from the barrel mouth of the plastic barrel.

[0012] By adopting the above technical solution, when the plastic barrel is placed in the placement area, the first driving cylinder drives the clamping member to move toward the barrel mouth of the plastic barrel to fix the barrel mouth of the plastic barrel, thereby improving the stability of the plastic barrel during cleaning. At the same time, the barrel mouth of the plastic barrel is sealed by the clamping member, thereby reducing the amount of cleaning liquid that enters the interior of the plastic barrel along the barrel mouth of the plastic barrel during the cleaning process of the cleaning machine.

[0013] Preferably, a sealing member is provided on the fastening member, and the sealing member is used to seal the gap between the fastening member and the mouth of the plastic barrel.

[0014] By adopting the above technical solution, when the mouth of the plastic barrel abuts against the sealing member, the sealing member fills the gap between the abutting member and the mouth of the plastic barrel, thereby reducing the shaking and noise caused by the excessive gap when the plastic barrel rotates. At the same time, it is beneficial to further reduce the amount of cleaning liquid that enters the interior of the plastic barrel along the gap.

[0015] Preferably, a pressure sensor is provided in the limiting groove, and the pressure sensor is used to detect the pressure between the bottom of the plastic barrel and the limiting groove, and the controller is electrically connected to the pressure sensor and the first driving cylinder.

[0016] By adopting the above technical solution, the pressure between the bottom of the plastic barrel and the limit groove is detected by a pressure sensor. When the pressure exerted by the piston rod of the first driving cylinder on the plastic barrel is too large or too small, the pressure sensor sends a detection signal to the controller, and the working state of the first driving cylinder is controlled by the controller to reduce the probability of the plastic barrel being deformed or damaged due to excessive pressure on the plastic barrel, or the probability of the plastic barrel falling off along the placement area due to insufficient pressure on the plastic barrel.

[0017] Preferably, it also includes a supporting component, which is used to support the plastic barrel after cleaning.

[0018] By adopting the above technical solution, after the plastic barrel is cleaned, the supporting component supports the cleaned plastic barrel, thereby reducing the probability of deformation or cracking of the plastic barrel due to the plastic barrel falling directly into the cleaning machine.

[0019] Preferably, the supporting assembly includes a supporting plate, which is slidably arranged on the cleaning machine along a vertical direction, and the supporting plate is located below the placement area. When the plastic barrel is cleaned, the supporting plate moves toward the placement area along a vertical direction, and the contour of the supporting plate is arranged in an arc shape. When the plastic barrel falls onto the supporting plate along the placement area, the plastic barrel rolls along the supporting plate to the drying system of the cleaning machine.

[0020] By adopting the above technical solution, after the plastic barrel is cleaned, the support plate moves toward the placement area in the vertical direction, reducing the force on the plastic barrel when it falls onto the support plate. At the same time, because the support plate is arranged in an arc-shaped shape, it plays a certain buffering role for the plastic barrel to roll along the support plate to the drying system, so that the plastic barrel after cleaning can slowly roll to the drying system.

[0021] Preferably, limit plates are provided at both ends of the support plate in the width direction, and the limit plates are used to limit the movement path of the plastic barrel along the support plate.

[0022] By adopting the above technical solution, the path of the plastic barrel rolling along the support plate is limited by the limit plate, the deflection of the plastic barrel when rolling along the support plate is reduced, and the probability of the plastic barrel falling off along the support plate when rolling to the drying system is reduced.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The plastic barrel is fixed or released through the coordinated cooperation between the driving part, the barrel bottom fixing component and the barrel mouth fixing component, and the driving part drives the plastic barrel to rotate along the placement area to complete the relatively comprehensive cleaning of the surface of the plastic barrel, which plays a positive guiding role in improving the cleanliness of the plastic barrel cleaning;

[0025] 2. When the plastic barrel is placed in the placement area, the first driving cylinder drives the abutting member to move toward the barrel mouth of the plastic barrel to fix the barrel mouth of the plastic barrel, thereby improving the stability of the plastic barrel during cleaning. At the same time, the barrel mouth of the plastic barrel is blocked by the abutting member to reduce the amount of cleaning liquid entering the plastic barrel along the barrel mouth of the plastic barrel during the cleaning process of the cleaning machine;

[0026] 3. The supporting component is used to support the plastic barrel after cleaning, thereby reducing the probability of deformation or cracking of the plastic barrel due to the plastic barrel falling directly into the cleaning machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of a clamping device for a plastic barrel cleaning machine in an embodiment of the present application.

[0028] Figure 2 It is a structural schematic diagram of a clamping device for a plastic barrel cleaning machine in an embodiment of the present application after a cover plate and a cleaning device are hidden.

[0029] Figure 3 It is a schematic diagram of the matching relationship between a first driving cylinder and a clamping member in a clamping device for a plastic barrel cleaning machine in an embodiment of the present application.

[0030] Figure 4 It is a system principle block diagram among a controller, a first driving cylinder and a pressure sensor in a clamping device for a plastic barrel cleaning machine in an embodiment of the present application.

[0031] Explanation of the accompanying drawings: 1. Cleaning machine; 2. Driving part; 21. Servo motor; 3. Barrel bottom fixing assembly; 31. Carrying plate; 311. Limiting groove; 4. Barrel mouth fixing assembly; 41. First driving cylinder; 42. Clamping part; 421. Annular groove; 5. Placement area; 6. Sealing part; 7. Pressure sensor; 8. Supporting assembly; 81. Supporting plate; 811. Limiting plate; 82. Second driving cylinder; 9. Cover plate. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] The present application embodiment discloses a clamping device for a plastic barrel cleaning machine. Figure 1 and Figure 2 A clamping device for a plastic barrel cleaning machine 1 includes a driving member 2, a barrel bottom fixing component 3 and a barrel mouth fixing component 4. The barrel bottom fixing component 3 and the barrel mouth fixing component 4 are sequentially arranged on the cleaning machine 1. A placement area 5 for placing a plastic barrel is formed between the barrel bottom fixing component 3 and the barrel mouth fixing component 4. When the plastic barrel is placed in the placement area 5, the barrel bottom fixing component 3 is used to fix the barrel bottom of the plastic barrel. The barrel mouth fixing component 4 moves along the cleaning machine 1 toward the barrel mouth of the plastic barrel and abuts against the barrel mouth of the plastic barrel. The driving member 2 is arranged on the cleaning machine 1 near the side of the barrel bottom fixing component 3. The driving member 2 is used to drive the barrel bottom fixing component 3 to rotate along the cleaning machine 1.

[0034] Specifically, the cleaning machine 1 is a conventional cleaning equipment. The high-pressure water gun is controlled by a controller to spray high-pressure water to the plastic barrel, and the cleaning process is completed in cooperation with the brush of the cleaning machine 1. The cleaning machine 1 is covered with a cover plate 9 to reduce the amount of liquid splashed along the cleaning machine 1. After the cleaning is completed, the water stains on the surface of the plastic barrel are removed again by the drying system of the cleaning machine 1 to complete the cleaning process. It is an existing equipment, and its specific composition and working principle are not described here.

[0035] Therefore, the implementation principle of a clamping device for a plastic barrel cleaning machine 1 in an embodiment of the present application is as follows: when the plastic barrel needs to be cleaned, the operator places the plastic barrel in the placement area 5, at which time the barrel mouth of the plastic barrel faces the barrel mouth fixing component 4, and the barrel bottom of the plastic barrel faces the barrel bottom fixing component 3, the barrel mouth of the plastic barrel is fixed by the barrel mouth fixing component 4, and the barrel bottom of the plastic barrel is fixed by the barrel bottom fixing component 3, and then the barrel bottom fixing component 3 is driven by the driving member 2 to rotate along the cleaning machine 1, thereby driving the plastic barrel to rotate along the cleaning machine 1, so that the plastic barrel is cleaned relatively comprehensively along the cleaning machine 1, and when the plastic barrel is cleaned, the barrel mouth fixing component 4 moves away from the barrel mouth of the plastic barrel along the cleaning machine 1 and separates from the barrel mouth of the plastic barrel, and the plastic barrel falls along the placement area 5 after cleaning, which is convenient for the subsequent cleaning procedure and plays a positive guiding role in improving the cleanliness of the plastic barrel cleaning.

[0036] Reference Figure 1 and Figure 2The barrel bottom fixing assembly 3 includes a carrying plate 31, the driving member 2 is connected to the carrying plate 31, the driving member 2 drives the carrying plate 31 to rotate along the cleaning machine 1, and a limiting groove 311 adapted to the bottom contour of the plastic barrel is opened on the carrying plate 31. When the plastic barrel is placed in the placement area 5, the bottom of the plastic barrel is located in the limiting groove 311.

[0037] Specifically, the driving member 2 can be a motor pulley transmission mechanism, which is a conventional component of mechanical power transmission. Its specific composition will not be repeated here. In this embodiment, the driving member 2 is configured as a servo motor 21, and the servo motor 21 is fixed on the outer wall of the cleaning machine 1, and the output shaft of the servo motor 21 passes through the side wall of the cleaning machine 1 and extends to the inside of the cleaning machine 1. The supporting plate 31 is coaxially fixed with the output shaft of the servo motor 21, thereby achieving the purpose of driving the supporting plate 31 to rotate along the cleaning machine 1 by the servo motor 21.

[0038] Furthermore, since the servo motor 21 has the characteristics of highly controllable rotation speed and rotation direction, the purpose of flexibly adjusting the rotation speed and rotation direction of the carrier plate 31 can be indirectly achieved. For example, the output shaft of the servo motor 21 can be set to rotate in the forward direction for a certain period of time, and then the output shaft of the servo motor 21 can be reversed, so that the carrier plate 31 can be reversed at a certain frequency, which is beneficial to improving the cleanliness of the plastic barrel placed inside.

[0039] Correspondingly, the limiting groove 311 is formed along the geometric center of the supporting plate 31 and is concave toward the edge of the supporting plate 31, and the limiting groove 311 is in a concentric state with the output shaft of the servo motor 21. The plastic barrel is supported by the supporting plate 31, thereby reducing the probability of the plastic barrel falling off the cleaning machine 1 when the driving member 2 drives the plastic barrel to rotate along the cleaning machine 1. At the same time, the limiting groove 311 limits the position of the bottom of the plastic barrel on the supporting plate 31, which is beneficial to reduce the deflection of the plastic barrel during rotation and improve the stability of the cleaning machine 1 during the cleaning process of the plastic barrel.

[0040] Reference Figure 2 and Figure 3 The barrel mouth fixing assembly 4 includes a first driving cylinder 41 and a fastening member 42. The first driving cylinder 41 is arranged on the cleaning machine 1. The piston rod of the first driving cylinder 41 movably passes through the cleaning machine 1 and is connected to the fastening member 42. The piston rod of the first driving cylinder 41 is rotatably connected to the fastening member 42. The first driving cylinder 41 is used to drive the fastening member 42 to abut against the barrel mouth of the plastic barrel, or to separate the fastening member 42 from the barrel mouth of the plastic barrel.

[0041] Specifically, the first driving cylinder 41 is installed on the side wall of the cleaning machine 1 away from the side where the servo motor 21 is installed. The piston rod of the first driving cylinder 41 moves through the cleaning machine 1 and extends to the inside of the cleaning machine 1. At this time, the piston rod of the first driving cylinder 41 is in a concentric state with the output shaft of the servo motor 21.

[0042] Furthermore, when the clamping member 42 is coaxially fixed with the piston rod of the first driving cylinder 41, the clamping member 42 is rotationally connected with the piston rod of the first driving cylinder 41, and the rotational connection can be achieved through a bearing or a rotating bushing. In this embodiment, a bearing is preferred, and the bearing is installed on the clamping member 42, and the bearing is coaxially fixed with the piston rod.

[0043] Therefore, when the plastic barrel is placed in the placement area 5, the first driving cylinder 41 drives the fastening member 42 to move toward the barrel mouth of the plastic barrel to fix the barrel mouth of the plastic barrel, thereby improving the stability of the plastic barrel during cleaning. At the same time, the barrel mouth of the plastic barrel is blocked by the fastening member 42 to reduce the amount of cleaning liquid that enters the plastic barrel along the barrel mouth of the plastic barrel during the cleaning process of the cleaning machine 1.

[0044] Correspondingly, a sealing member 6 is provided on the fastening member 42. The sealing member 6 is used to seal the gap between the fastening member 42 and the mouth of the plastic barrel. The sealing member 6 can be a soft rubber sleeve. In the present embodiment, the sealing member 6 is a silicone sealing sleeve. An annular groove 421 is provided on the surface where the fastening member 42 abuts against the mouth of the plastic barrel. The mouth of the plastic barrel can be snapped into the annular groove 421. At the same time, the sealing member 6 is installed in the annular groove 421.

[0045] Its function is that the silicone sealing sleeve is easy to deform. When the mouth of the plastic barrel abuts against the sealing member 6, the sealing member 6 fills the gap between the fastening member 42 and the mouth of the barrel, thereby reducing the noise and shaking caused by the large gap when the plastic barrel rotates, which is beneficial to further reduce the amount of cleaning liquid entering the inside of the plastic barrel along the gap.

[0046] Reference Figure 2-Figure 4 A pressure sensor 7 is provided in the limiting groove 311 . The pressure sensor 7 is used to detect the pressure between the bottom of the plastic barrel and the limiting groove 311 . The controller is electrically connected to the pressure sensor 7 and the first driving cylinder 41 .

[0047] Specifically, the pressure sensor 7 is a conventional pressure detection component, and its specific working principle and components are not described in detail here.

[0048] Its function is to detect the force between the bottom of the plastic barrel and the limit groove 311 through the pressure sensor 7. When the pressure sensor 7 detects that the force between the bottom of the plastic barrel and the limit groove 311 is greater than the set value, the pressure sensor 7 sends a detection signal to the controller, and the controller controls the working state of the first driving cylinder 41 to reduce the pressure of the output shaft of the first driving cylinder 41 acting on the plastic barrel, thereby reducing the force on the plastic barrel and reducing the probability of deformation or cracking of the plastic barrel due to excessive force on the plastic barrel.

[0049] At the same time, when the pressure sensor 7 detects that the force between the bottom of the plastic barrel and the limit groove 311 is less than the set value, the pressure sensor 7 sends a detection signal to the controller, and the controller controls the working state of the first driving cylinder 41 to increase the pressure of the output shaft of the first driving cylinder 41 acting on the plastic barrel, thereby increasing the force on the plastic barrel and reducing the probability of the plastic barrel falling off along the placement area 5 when the plastic barrel rotates along the placement area 5 due to insufficient force on the plastic barrel.

[0050] Reference Figure 1 and Figure 2 , and also includes a supporting component 8, which is used to support the plastic barrel after cleaning. When the plastic barrel is cleaned, the supporting component 8 supports the plastic barrel after cleaning, thereby reducing the probability of deformation or cracking of the plastic barrel due to the plastic barrel falling directly into the cleaning machine 1.

[0051] Reference Figure 1 and Figure 2 The supporting assembly 8 includes a supporting plate 81 and a second driving cylinder 82. The supporting plate 81 is slidably arranged on the cleaning machine 1 along the vertical direction, and the supporting plate 81 is located below the placement area 5. The second driving cylinder 82 is arranged in the cleaning machine 1. The second driving cylinder 82 is used to drive the supporting plate 81 to move. When the plastic barrel is cleaned, the supporting plate 81 moves toward the placement area 5 along the vertical direction. The contour of the supporting plate 81 is arranged in an arc shape. When the plastic barrel falls onto the supporting plate 81 along the placement area 5, the plastic barrel rolls along the supporting plate 81 to the drying system of the cleaning machine 1.

[0052] Specifically, the second driving cylinder 82 is arranged in the cleaning machine 1 along the vertical direction, and the piston rod of the second driving cylinder 82 is vertically directed toward the placement area 5. The piston rod of the second driving cylinder 82 is fixedly connected to the supporting plate 81, thereby achieving the purpose of driving the supporting plate 81 to reciprocate in the vertical direction by the second driving cylinder 82.

[0053] Therefore, after the plastic barrel is cleaned, the second driving cylinder 82 drives the supporting plate 81 to move toward the placement area 5, reducing the force on the plastic barrel when it falls onto the supporting plate 81. At the same time, because the supporting plate 81 is arranged in an arc shape, it plays a certain buffering role for the plastic barrel to roll along the supporting plate 81 to the drying system, so that the plastic barrel after cleaning can slowly roll to the drying system.

[0054] Correspondingly, limiting plates 811 are provided at both ends of the support plate 81 along the width direction. The limiting plates 811 are used to limit the movement path of the plastic barrel along the support plate 81. Two limiting plates 811 are provided, and the two limiting plates 811 are fixedly connected to the support plate 81 along the two side walls of the support plate 81 in the length direction respectively. The two limiting plates 811 limit the rolling path of the plastic barrel along the support plate 81, thereby reducing the deflection of the plastic barrel when rolling along the support plate 81, and reducing the probability of the plastic barrel falling off along the support plate 81 when rolling to the drying system.

[0055] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A clamping device for a plastic barrel cleaning machine, characterized in that: The invention comprises a driving member (2), a barrel bottom fixing assembly (3) and a barrel mouth fixing assembly (4), wherein the barrel bottom fixing assembly (3) and the barrel mouth fixing assembly (4) are arranged on a cleaning machine (1) in sequence, and a placement area (5) for placing a plastic barrel is formed between the barrel bottom fixing assembly (3) and the barrel mouth fixing assembly (4). When the plastic barrel is placed in the placement area (5), the barrel bottom fixing assembly (3) is used to fix the barrel bottom of the plastic barrel, and the barrel mouth fixing assembly (4) moves along the cleaning machine (1) toward the barrel mouth of the plastic barrel and abuts against the barrel mouth of the plastic barrel. The driving member (2) is arranged on the cleaning machine (1) near the side of the barrel bottom fixing assembly (3), and the driving member (2) is used to drive the barrel bottom fixing assembly (3) to rotate along the cleaning machine (1).

2. The clamping device for a plastic barrel cleaning machine according to claim 1, characterized in that: The barrel bottom fixing assembly (3) comprises a carrier plate (31), the driving member (2) is connected to the carrier plate (31), the driving member (2) drives the carrier plate (31) to rotate along the cleaning machine (1), and the carrier plate (31) is provided with a limiting groove (311) adapted to the contour of the bottom of the plastic barrel. When the plastic barrel is placed in the placement area (5), the bottom of the plastic barrel is located in the limiting groove (311).

3. The clamping device for a plastic barrel cleaning machine according to claim 2, characterized in that: The barrel mouth fixing assembly (4) comprises a first driving cylinder (41) and a fastening member (42), wherein the first driving cylinder (41) is arranged on the cleaning machine (1), the piston rod of the first driving cylinder (41) movably passes through the cleaning machine (1) and is connected to the fastening member (42), and the piston rod of the first driving cylinder (41) is rotatably connected to the fastening member (42), and the first driving cylinder (41) is used to drive the fastening member (42) to abut against the barrel mouth of the plastic barrel, or to separate the fastening member (42) from the barrel mouth of the plastic barrel.

4. The clamping device for a plastic barrel cleaning machine according to claim 3, characterized in that: The fastening member (42) is provided with a sealing member (6), and the sealing member (6) is used to seal the gap between the fastening member (42) and the mouth of the plastic barrel.

5. The clamping device for a plastic barrel cleaning machine according to claim 4, characterized in that: A pressure sensor (7) is arranged in the limiting groove (311), and the pressure sensor (7) is used to detect the pressure between the bottom of the plastic barrel and the limiting groove (311). The controller is electrically connected to the pressure sensor (7) and the first driving cylinder (41).

6. The clamping device for a plastic barrel cleaning machine according to claim 1, characterized in that: It also comprises a supporting component (8), wherein the supporting component (8) is used to support the plastic barrel after cleaning.

7. The clamping device for a plastic barrel cleaning machine according to claim 6, characterized in that: The supporting assembly (8) comprises a supporting plate (81), which is slidably arranged on the cleaning machine (1) along the vertical direction, and the supporting plate (81) is located below the placement area (5). When the plastic barrel is cleaned, the supporting plate (81) moves toward the placement area (5) along the vertical direction, and the contour of the supporting plate (81) is arranged in an arc shape. When the plastic barrel falls onto the supporting plate (81) along the placement area (5), the plastic barrel rolls along the supporting plate (81) to the drying system of the cleaning machine (1).

8. The clamping device for a plastic barrel cleaning machine according to claim 7, characterized in that: Limiting plates (811) are provided at both ends of the supporting plate (81) in the width direction, and the limiting plates (811) are used to limit the movement path of the plastic barrel along the supporting plate (81).

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