Electroplating pretreatment equipment for automobile part manufacturing

Abstract

The invention discloses electroplating pretreatment equipment for automobile part manufacturing, and relates to the technical field of electroplating pretreatment, the electroplating pretreatment equipment comprises a rack and a cleaning tank, a lifting mechanism is arranged on the rack, the lifting mechanism is connected with a storage mechanism, a cleaning assembly is arranged in the cleaning tank, and a mounting plate is fixedly arranged on the rack on one side of the storage mechanism; a mounting plate is arranged on the rack, a placement frame is arranged on the mounting plate, guide columns and a first adjusting air cylinder are fixedly arranged at the positions, at the two ends of the mounting plate, of the rack, a sliding frame is movably mounted between the guide columns, a feeding plate is arranged on the sliding frame, a feeding air cylinder is arranged on the sliding frame, and the feeding air cylinder is connected with the feeding plate; the cleaning frame is in butt joint with a port of the placing frame, the cleaning frame is connected with the lifting mechanism, a guide frame is arranged on the portion, on the other side of the storage mechanism, of the machine frame, a pushing air cylinder and a pushing block are arranged at one end of the guide frame, and cleaned parts on the cleaning frame can be conveyed to the guide frame and pushed away from the guide frame under driving of the feeding plate.

Description

Technical Field

[0001] The invention relates to the technical field of electroplating pre-treatment, in particular to electroplating pre-treatment equipment used for manufacturing automobile parts. Background Art

[0002] Pre-treatment for electroplating is a very important part of the electroplating process. It mainly includes the following aspects of work: Degreasing: remove impurities such as oil and grease on the surface of the workpiece to ensure good bonding between the coating and the substrate. Rust removal: remove rust, oxides, etc. on the surface of the workpiece to make the surface clean. Activation: through proper treatment, the surface of the workpiece is activated to improve the bonding strength of electroplating. Cleaning: clean the workpiece several times to remove residual impurities and treatment liquid to prepare for electroplating. Good pre-treatment for electroplating can significantly improve the quality, bonding strength and durability of the coating, and has a key impact on the success of the entire electroplating process.

[0003] The most important step is to clean the surface of the processed parts to ensure the cleanliness of the surface of the parts, so as to ensure that the plated metal can evenly cover the surface of the parts during electroplating. Existing cleaning equipment is prone to omissions when cleaning rod-shaped parts, and the parts are not cleaned thoroughly enough, thus affecting the subsequent electroplating quality. Summary of the invention

[0004] The object of the present invention is to provide an electroplating pre-treatment device for automobile parts manufacturing to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: The cleaning rack is provided with a lifting mechanism, and a lifting mechanism is provided on the lifting mechanism, and a cleaning component is provided at the bottom of the cleaning rack. A mounting plate is fixedly provided on the mounting plate on one side of the storage mechanism, and a placing rack is provided on the mounting plate. Guide columns and an adjusting cylinder are fixedly provided at both ends of the mounting plate of the mounting plate, and a sliding rack is movably installed between the guide columns, a feeding plate is provided on the sliding rack, and a feeding cylinder is provided on the sliding rack, and the feeding cylinder is connected to the feeding plate. The storage mechanism comprises a cleaning rack, and the cleaning rack and the placing rack ports are butt-jointed with each other, and the cleaning rack is connected to the lifting mechanism. A guide rack is provided on the rack on the other side of the storage mechanism, and a pushing cylinder is provided at one end of the guide rack, and the pushing cylinder is connected to a pushing block, and a baffle is provided at the edge of the guide rack.

[0006] As a further solution of the present invention: the storage mechanism also includes storage grooves spaced apart on the cleaning rack, the storage grooves are V-shaped, rollers are rotatably mounted on both sides of the storage grooves, the cleaning rack is connected to a bracket, and the bracket is connected to a lifting mechanism.

[0007] As a further solution of the present invention: the lifting mechanism includes a top plate, mounting columns are provided at both ends of the top plate, the mounting columns are fixedly connected to the frame, a lifting cylinder is provided on the top plate, a suspension plate is slidably installed on the mounting columns, the lifting cylinder is connected to the suspension plate, connecting plates are provided at both ends of the suspension plate, and the connecting plates are fixedly connected to both ends of the bracket.

[0008] As a further solution of the present invention: push rods are provided at both ends of the bottom of the top plate, the bottom ends of the push rods are connected to top blocks, the bracket is provided with anti-slip plates on both sides of the cleaning rack, the bottom of the bracket is provided with plug-in columns, the plug-in columns are sleeved with support springs, the bottom of the anti-slip plate is provided with a matching plate, the matching plate and the plug-in columns cooperate with each other, and extension blocks are provided at both ends of the anti-slip plate aligned with the top blocks.

[0009] As a further solution of the present invention: the cleaning rack is hollow, guide cylinders are evenly arranged on the inner side of the cleaning rack, drive belts are arranged between the guide cylinders, the drive belts are in contact with the rollers under the limit of the guide cylinders, and one of the guide cylinders is connected to a drive motor.

[0010] As a further solution of the present invention: the cleaning assembly includes telescopic columns evenly arranged at the bottom of the cleaning tank, one end of the telescopic columns is rotatably installed between the cleaning tank, the part of the telescopic columns located outside the cleaning tank is connected to a driven gear, the driven gear is connected to a driving member, the other end of the telescopic columns is evenly arranged with cleaning brushes, the end of the telescopic columns close to the cleaning brush is provided with a clamping block, the clamping block is connected to a movable plate, the movable plate is slidably installed between the cleaning tank, and an adjusting cylinder 2 is fixedly arranged on the inner side of the cleaning tank, and the adjusting cylinder 2 is connected to the movable plate.

[0011] As a further solution of the present invention: the telescopic columns are symmetrically arranged on both sides of the cleaning tank, a fixing plate is arranged at the bottom of the cleaning tank, cleaning sleeves are evenly arranged on the fixing plate, and the telescopic columns carry cleaning brushes and are coaxially installed with the cleaning sleeves.

[0012] Compared with the prior art, the present invention has the following beneficial effects: (1) Adjust the cleaning rack in the storage mechanism to the same height as the placement rack in conjunction with the lifting mechanism, place the rod-shaped parts on the placement rack, adjust the position of the sliding rack in conjunction with the adjusting cylinder, and use the push cylinder to drive the feeding plate to move, and transfer the parts in the placement rack to the cleaning rack. Then, use the lifting mechanism to lower the cleaning rack carrying the parts into the cleaning tank, and use the cleaning component to clean them. The storage tanks are set at intervals, and when the rod-shaped parts are transferred from the placement rack to the storage tank, they are supported by rollers, which makes it easier for the cleaning component to rotate the rod-shaped parts in the storage tank when cleaning, thereby improving the overall cleaning effect of the parts.

[0013] (2) By movably installing the anti-slip plate on both sides of the bracket, when the cleaning rack is raised to the highest position and docked with the placement rack, the anti-slip plate is pressed down by the edge extension block and the top block, thereby facilitating the transfer of parts from the placement rack to the storage slot of the cleaning rack. When the parts are transferred, the cleaning rack is driven to fall under the lifting mechanism, and the extension block and the top block on the edge of the anti-slip plate gradually separate, and the anti-slip plate rises under the action of the bottom support spring, thereby closing the two ends of the storage slot, thereby ensuring that the parts will not fall out of the storage slot from both ends when they are cleaned in the cleaning rack, ensuring the cleaning effect while preventing the parts from falling into the cleaning slot.

[0014] (3) The interior of the cleaning rack is set as a hollow structure. The driving belt is installed through the guide cylinder. The driving belt is driven by the driving motor to rotate, thereby driving the rollers on both sides of the storage tank to rotate, and driving the parts in the storage tank to rotate, thereby ensuring the cleaning effect and cleaning efficiency of the parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the connection between the lifting mechanism, the frame and the cleaning frame in the present invention.

[0017] Figure 3 It is a schematic diagram of the installation of the feeding plate in the present invention.

[0018] Figure 4 It is a schematic diagram of the connection structure between the lifting mechanism and the storage mechanism in the present invention.

[0019] Figure 5 It is a structural schematic diagram of the cleaning rack in the present invention.

[0020] Figure 6 It is a schematic diagram of the installation of the cleaning rack and the bracket in the present invention.

[0021] Figure 7 It is a schematic diagram of the structure of the driving component in the present invention.

[0022] Figure 8It is a schematic diagram of the structure of the cleaning component in the present invention.

[0023] Fig. 9 It is a schematic diagram of the installation of the cleaning brush in the present invention.

[0024] Fig.10 It is a schematic diagram of the connection between the telescopic column and the cleaning brush in the present invention.

[0025] In the figure: 1, frame; 10, mounting plate; 11, placement rack; 12, guide rack; 13, baffle; 14, push cylinder; 15, push block; 16, adjusting cylinder 1; 17, sliding rack; 18, feeding plate; 19, guide column; 110, feeding cylinder; 2, cleaning tank; 3, storage mechanism; 30, cleaning rack; 300, storage tank; 301, roller; 31, bracket; 32, anti-slip plate; 320, extension block; 321, matching plate; 322, plug Column; 323, support spring; 33, drive belt; 34, guide cylinder; 35, drive motor; 4, lifting mechanism; 40, top plate; 41, mounting column; 42, lifting cylinder; 43, hanging plate; 430, connecting plate; 44, push rod; 440, top block; 5, cleaning assembly; 50, cleaning brush; 51, moving plate; 52, fixed plate; 520, cleaning sleeve; 53, telescopic column; 530, block; 531, driven gear; 54, adjusting cylinder two. DETAILED DESCRIPTION

[0026] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0027] like Figure 1 , Figure 2 , Figure 3 As shown, a plating pre-treatment device for automobile parts manufacturing includes a frame 1, a cleaning tank 2 is arranged in the frame 1, a lifting mechanism 4 is arranged on the frame 1, and the lifting mechanism 4 is connected to a storage mechanism 3. A cleaning component 5 is arranged at the bottom of the cleaning tank 2, a mounting plate 10 is fixedly arranged on the frame 1 on one side of the storage mechanism 3, and a placement rack 11 is arranged on the mounting plate 10. Guide columns 19 and an adjusting cylinder 16 are fixedly arranged at both ends of the mounting plate 10 of the frame 1, and a sliding rack is movably installed between the guide columns 19. 17, a feeding plate 18 is arranged on the sliding frame 17, a feeding cylinder 110 is arranged on the sliding frame 17, the feeding cylinder 110 is connected to the feeding plate 18, the storage mechanism 3 includes a cleaning frame 30, the cleaning frame 30 and the placement frame 11 ports are connected to each other, the cleaning frame 30 is connected to the lifting mechanism 4, a guide frame 12 is arranged on the frame 1 on the other side of the storage mechanism 3, a pushing cylinder 14 is arranged at one end of the guide frame 12, the pushing cylinder 14 is connected to a pushing block 15, and a baffle 13 is arranged on the edge of the guide frame 12.

[0028] Specifically, before cleaning the parts, firstly, the cleaning rack 30 in the storage mechanism 3 is adjusted to the same height as the placement rack 11 in combination with the lifting mechanism 4, and the rod-shaped parts are placed on the placement rack 11. The position of the sliding rack 17 is adjusted in combination with the adjusting cylinder 16, and the feeding plate 18 is driven to move by the pushing cylinder 14 to transfer the parts in the placement rack 11 to the cleaning rack 30. Then, the cleaning rack 30 carrying the parts is lowered into the cleaning tank 2 in combination with the lifting mechanism 4, and the cleaning assembly 5 is combined for cleaning.

[0029] Further, such as Figure 5 As shown, the storage mechanism 3 also includes storage grooves 300 spaced apart on the cleaning rack 30 , the storage grooves 300 are V-shaped, rollers 301 are rotatably mounted on both sides of the storage grooves 300 , the cleaning rack 30 is connected to a bracket 31 , and the bracket 31 is connected to the lifting mechanism 4 .

[0030] Specifically, the storage grooves 300 are arranged at intervals, and when the rod-shaped parts are transferred from the placement rack 11 to the storage grooves 300, they are supported by the rollers 301, so that the cleaning component 5 can rotate in the storage grooves 300 during cleaning, thereby improving the overall cleaning effect of the parts.

[0031] Further, such as Figure 4 , Figure 5 , Figure 6 As shown, the lifting mechanism 4 includes a top plate 40, and mounting columns 41 are provided at both ends of the top plate 40. The mounting columns 41 are fixedly connected to the frame 1. A lifting cylinder 42 is provided on the top plate 40, and a suspension plate 43 is slidably installed on the mounting columns 41. The lifting cylinder 42 is connected to the suspension plate 43, and connecting plates 430 are provided at both ends of the suspension plate 43. The connecting plates 430 are fixedly connected to both ends of the bracket 31. The top plate 40 is provided with top rods 44 at both ends of the bottom, and the bottom ends of the top rods 44 are connected to top blocks 440. The bracket 31 is provided with anti-slip plates 32 on both sides of the cleaning rack 30. The bottom of the bracket 31 is provided with plug-in columns 322, and the plug-in columns 322 are sleeved with support springs 323. The bottom of the anti-slip plate 32 is provided with a matching plate 321, and the matching plate 321 cooperates with the plug-in columns 322. Extension blocks 320 are provided at the positions of the anti-slip plate 32 at both ends aligned with the top blocks 440.

[0032] Specifically, in order to ensure that the parts will not be separated from the storage tank 300 during cleaning, the anti-slip plate 32 is movably installed on both sides of the bracket 31. When the cleaning rack 30 is raised to the highest position and docked with the placement rack 11, the anti-slip plate 32 is pressed down by the edge extension block 320 and the top block 440, so that the parts are easily transferred from the placement rack 11 to the storage tank 300 of the cleaning rack 30. After the parts are transferred, when the cleaning rack 30 is driven to fall by the lifting mechanism 4, the extension block 320 and the top block 440 at the edge of the anti-slip plate 32 are gradually separated, and the anti-slip plate 32 is raised under the action of the bottom support spring 323, so that the two ends of the storage tank 300 are closed, thereby ensuring that the parts will not be separated from the storage tank 300 from both ends when they are cleaned in the cleaning rack 30, and the cleaning effect is ensured while preventing the parts from falling into the cleaning tank 2.

[0033] More specifically, after cleaning is completed, the cleaning rack 30 is lifted from the cleaning tank 2 in combination with the lifting mechanism 4. When the cleaning rack 30 reaches the same height as the placement rack 11, the anti-slip plate 32 is pressed down under the action of the top block 440. At this time, the adjusting cylinder 16, the feeding cylinder 110, and the feeding plate 18 are combined to push the parts in the storage tank 300 onto the guide frame 12, and the pushing cylinder 14 and the pushing block 15 are combined to complete the part transfer.

[0034] Further, such as Figure 7 As shown, the cleaning rack 30 is hollow, and guide cylinders 34 are evenly arranged on the inner side of the cleaning rack 30. Drive belts 33 are arranged between the guide cylinders 34. The drive belts 33 are in contact with the rollers 301 under the limit of the guide cylinders 34, and one of the guide cylinders 34 is connected to a drive motor 35.

[0035] Specifically, in order to further improve the cleaning effect of parts, the interior of the cleaning rack 30 is set to a hollow structure, and a driving belt 33 is installed through a guide cylinder 34. The driving belt 33 is driven to rotate in combination with a driving motor 35, thereby driving the rollers 301 on both sides of the storage groove 300 to rotate, and driving the parts in the storage groove 300 to rotate, thereby ensuring the cleaning effect of the parts and improving the cleaning efficiency.

[0036] Further, such as Figure 8 , Fig. 9As shown, the cleaning assembly 5 includes telescopic columns 53 uniformly arranged at the bottom of the cleaning tank 2, one end of the telescopic column 53 is rotatably installed between the cleaning tank 2, the part of the telescopic column 53 located outside the cleaning tank 2 is connected to a driven gear 531, and the driven gear 531 is connected to a driving member, and the other end of the telescopic column 53 is uniformly provided with a cleaning brush 50, and the end of the telescopic column 53 close to the cleaning brush 50 is provided with a block 530, and the block 530 is connected to a moving plate 51, and the moving plate 51 is slidably installed between the cleaning tank 2, and an adjusting cylinder 2 54 is fixedly arranged on the inner side of the cleaning tank 2, and the adjusting cylinder 2 54 is connected to the moving plate 51.

[0037] Further, such as Figure 8 , Fig.10 As shown, the telescopic columns 53 are symmetrically arranged on both sides of the cleaning tank 2, a fixing plate 52 is arranged at the bottom of the cleaning tank 2, cleaning sleeves 520 are evenly arranged on the fixing plate 52, and the telescopic columns 53 carry the cleaning brush 50 and are coaxially installed with the cleaning sleeve 520.

[0038] Specifically, before the parts fall into the cleaning tank 2 together with the cleaning rack 30, the telescopic column 53 is shortened by adjusting the air cylinder 2 54, so that the cleaning brushes 50 on both sides of the cleaning tank 2 are separated from each other, and the falling space of the cleaning rack 30 is freed. After the cleaning rack 30 is completely dropped, the telescopic columns 53 on both sides are extended by adjusting the air cylinder, so that the cleaning brushes 50 fall into the storage tank 300, and the driving motor 35 is started to drive the roller 301 to rotate, so that the parts rotate in the storage tank 300, and the parts are cleaned in combination with the cleaning brush 50. During cleaning, the telescopic columns 53 on both sides can be controlled to extend and retract, so as to ensure that the surface of the parts is brushed radially and axially at the same time.

[0039] The working principle of the embodiment of the present invention is: like Figure 1-Figure 10As shown, before cleaning the parts, firstly, the cleaning rack 30 in the storage mechanism 3 is adjusted to the same height as the placement rack 11 in combination with the lifting mechanism 4, and the rod-shaped parts are placed on the placement rack 11. The position of the sliding rack 17 is adjusted in combination with the adjusting cylinder 16, and the feeding plate 18 is driven to move by the pushing cylinder 14, so that the parts in the placement rack 11 are transferred to the cleaning rack 30. Then, the cleaning rack 30 carrying the parts is lowered into the cleaning tank 2 in combination with the lifting mechanism 4, and the cleaning is carried out in combination with the cleaning assembly 5. In order to ensure that the parts will not be separated from the storage tank 300 during cleaning, the anti-slip plate 32 is movably installed on both sides of the bracket 31. When the cleaning rack 30 is raised to the highest position and docked with the placement rack 11, the anti-slip plate 32 is pressed down under the action of the edge extension block 320 and the top block 440, so that the parts are easily transferred from the placement rack 11 to the storage tank 300 of the cleaning rack 30. After the parts are transferred, the cleaning rack 30 is driven to fall by the lifting mechanism 4, and the extension block 320 on the edge of the anti-slip plate 32 is gradually separated from the top block 440, and the anti-slip plate 32 is raised under the action of the bottom support spring 323, thereby closing both ends of the storage tank 300, thereby ensuring that the parts will not be separated from the storage tank 300 from both ends when being cleaned in the cleaning rack 30, ensuring the cleaning effect while preventing the parts from falling into the cleaning tank 2. The interior of the cleaning rack 30 is set as a hollow structure, and the driving belt 33 is installed through the guide cylinder 34, and the driving belt 33 is driven to rotate in combination with the driving motor 35, thereby driving the rollers 301 on both sides of the storage tank 300 to rotate, driving the parts in the storage tank 300 to rotate, and ensuring the cleaning effect and cleaning efficiency of the parts.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. Any reference numeral in a claim shall not be regarded as limiting the claim involved.

[0041] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An electroplating pre-treatment device for automobile parts manufacturing, comprising a frame (1), wherein a cleaning tank (2) is arranged in the frame (1), characterized in that: The frame (1) is provided with a lifting mechanism (4), the lifting mechanism (4) is connected to a storage mechanism (3), a cleaning assembly (5) is provided at the bottom of the cleaning tank (2), a mounting plate (10) is fixedly provided on the frame (1) on one side of the storage mechanism (3), a placing rack (11) is provided on the mounting plate (10), guide columns (19) and an adjusting cylinder (16) are fixedly provided at both ends of the mounting plate (10) of the frame (1), a sliding frame (17) is movably installed between the guide columns (19), a feeding plate (18) is provided on the sliding frame (17), and the A feeding cylinder (110) is arranged on the sliding frame (17), and the feeding cylinder (110) is connected to the feeding plate (18). The storage mechanism (3) includes a cleaning frame (30), and the cleaning frame (30) and the port of the placement frame (11) are connected to each other. The cleaning frame (30) is connected to the lifting mechanism (4). A guide frame (12) is arranged on the frame (1) on the other side of the storage mechanism (3), and a pushing cylinder (14) is arranged at one end of the guide frame (12), and the pushing cylinder (14) is connected to a pushing block (15). A baffle (13) is arranged on the edge of the guide frame (12).

2. The electroplating pretreatment equipment for automobile parts manufacturing according to claim 1 is characterized in that: The storage mechanism (3) further comprises storage grooves (300) arranged at intervals on the cleaning rack (30), the storage grooves (300) being arranged in a V-shape, rollers (301) being rotatably mounted on both sides of the storage grooves (300), the cleaning rack (30) being connected to a bracket (31), and the bracket (31) being connected to the lifting mechanism (4).

3. The electroplating pretreatment equipment for automobile parts manufacturing according to claim 2 is characterized in that: The lifting mechanism (4) comprises a top plate (40), mounting columns (41) are provided at both ends of the top plate (40), the mounting columns (41) are fixedly connected to the frame (1), a lifting cylinder (42) is provided on the top plate (40), a suspension plate (43) is slidably mounted on the mounting columns (41), the lifting cylinder (42) is connected to the suspension plate (43), connecting plates (430) are provided at both ends of the suspension plate (43), and the connecting plates (430) are fixedly connected to both ends of the bracket (31).

4. The electroplating pretreatment equipment for automobile parts manufacturing according to claim 3 is characterized in that: Both ends of the bottom of the top plate (40) are provided with top rods (44), the bottom end of the top rod (44) is connected to a top block (440), the bracket (31) is provided with anti-slip plates (32) on both sides of the cleaning rack (30), a plug-in column (322) is provided at the bottom of the bracket (31), a support spring (323) is sleeved on the plug-in column (322), a matching plate (321) is provided at the bottom of the anti-slip plate (32), the matching plate (321) and the plug-in column (322) cooperate with each other, and extension blocks (320) are provided at both ends of the anti-slip plate (32) in alignment with the top block (440).

5. The electroplating pre-treatment equipment for automobile parts manufacturing according to claim 2, characterized in that: The cleaning rack (30) is hollow, and guide cylinders (34) are evenly arranged inside the cleaning rack (30). Drive belts (33) are arranged between the guide cylinders (34). The drive belts (33) are in contact with the rollers (301) under the limit of the guide cylinders (34), and one of the guide cylinders (34) is connected to a drive motor (35).

6. The electroplating pretreatment equipment for automobile parts manufacturing according to claim 1, characterized in that: The cleaning assembly (5) comprises telescopic columns (53) uniformly arranged at the bottom of the cleaning tank (2), one end of the telescopic column (53) being rotatably mounted between the cleaning tank (2), a portion of the telescopic column (53) located outside the cleaning tank (2) being connected to a driven gear (531), the driven gear (531) being connected to a driving member, a cleaning brush (50) being uniformly arranged at the other end of the telescopic column (53), a clamping block (530) being arranged at one end of the telescopic column (53) close to the cleaning brush (50), the clamping block (530) being connected to a moving plate (51), the moving plate (51) being slidably mounted between the moving plate (51) and the cleaning tank (2), and a second regulating cylinder (54) being fixedly arranged on the inner side of the cleaning tank (2), the second regulating cylinder (54) being connected to the moving plate (51).

7. The electroplating pre-treatment equipment for automobile parts manufacturing according to claim 6, characterized in that: The telescopic columns (53) are symmetrically arranged on both sides of the cleaning tank (2); a fixing plate (52) is arranged at the bottom of the cleaning tank (2); cleaning sleeves (520) are evenly arranged on the fixing plate (52); and the telescopic columns (53) carry a cleaning brush (50) and are coaxially installed with the cleaning sleeves (520).

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