Automatic cleaning apparatus for developing rollers

Abstract

This invention relates to an automatic cleaning device for developing rollers, belonging to the field of developing roller cleaning technology. It includes a frame and a placement housing, which is placed on the frame. The placement housing has several placement slots evenly spaced along its axial direction for placing developing rollers. A gripping system and a cleaning assembly are sequentially arranged along the moving direction of the placement housing. The gripping system includes a slide rail and a gripping assembly. The slide rail is mounted parallel to the top of the frame, and the gripping assembly is slidably mounted on the slide rail. By using the placement housing, several developing rollers can be placed at once. The placement housing is placed on the frame, allowing it to move onto the gripping system. The gripping assembly then grips all the developing rollers within the placement housing and transfers them to the cleaning assembly for cleaning. This allows the cleaning device to clean multiple developing rollers simultaneously, significantly improving cleaning speed and efficiency.

Description

Technical Field

[0001] This invention belongs to the field of developing roller cleaning technology, and specifically relates to an automatic cleaning device for developing rollers. Background Technology

[0002] The developing roller is a crucial core component of the toner cartridge and one of the components that has the greatest impact on image density. During the production of the developing roller, the mandrel is placed in a mold, and semi-conductive rubber is injected into the mold for foaming. After foaming, the semi-conductive rubber solidifies on the surface of the mandrel to form an elastic layer. The elastic tip of the developing roller is trimmed, and the developing roller is then placed on a polishing machine for polishing. Rubber shavings and burrs remain on the surface of the developing roller, so the surface of the developing roller needs to be cleaned.

[0003] For example, utility model patent CN222175096U discloses an automatic cleaning device for a developing roller, including a base and a developing roller body. A connecting frame is provided on the top of the base, and the developing roller body is located inside the connecting frame. Limit frames are provided on both the left and right side walls of the developing roller body, and threaded shafts extending into the connecting frame are provided on both the left and right side walls. This automatic cleaning device for the developing roller, through the setting of cleaning components, activates a micro fluoropolymer-lined pump to spray the developing solution from the developing solution storage tank onto the surface of the developing roller body via a combination of fluoropolymer-lined tubes, fluoropolymer-lined tees, fluoropolymer-lined telescopic hoses, and annular spray pipes. A servo motor is activated, driving a threaded rod to rotate via its output shaft, causing the threaded block to move a cleaning ring to clean the surface of the developing roller body.

[0004] Based on the search of patent grant announcement numbers and considering their shortcomings, the following was found:

[0005] Existing cleaning devices for developing rollers all require manual installation of individual developing rollers onto the cleaning device for cleaning. However, in actual cleaning processes, due to the large number of developing rollers that need to be cleaned in factories, and the fact that the cleaning device can only clean individual developing rollers, the cleaning speed of the cleaning device cannot keep up with the manufacturing speed of the developing rollers in the factory, thus affecting the overall production speed and efficiency of the developing rollers in the factory. Summary of the Invention

[0006] To address the problem that existing cleaning devices for developing rollers require manual installation of individual developing rollers, which leads to insufficient cleaning speed compared to the factory's production speed, the present invention provides an automated cleaning device for developing rollers.

[0007] The objective of this invention can be achieved through the following technical solutions:

[0008] An automatic cleaning device for developing rollers includes a frame and a placement housing. The placement housing is placed on the frame and has a plurality of placement slots evenly spaced along its axial direction. The placement slots are used to place developing rollers. A gripping system and a cleaning assembly are arranged sequentially along the moving direction of the placement housing. The gripping system includes a slide rail and a gripping assembly. The slide rail is mounted parallel to the top of the frame, and the gripping assembly is slidably disposed on the slide rail. The gripping assembly grips the developing rollers in the placement housing and moves them to the cleaning assembly for cleaning.

[0009] As a preferred embodiment of the present invention, the gripping assembly includes a gripping plate and a plurality of gripping units. The gripping plate is slidably disposed on the slide rail, and the gripping units are vertically disposed on the gripping plate. The plurality of gripping units correspond one-to-one with a plurality of developing rollers, and any one of the gripping units is used to grip the corresponding developing roller.

[0010] As a preferred embodiment of the present invention, the gripping assembly further includes a plurality of telescopic units, which correspond one-to-one with the gripping units, and each telescopic unit is interconnected with the corresponding gripping unit; the telescopic unit includes a hollow fixed rod, a sliding rod, and a telescopic spring, the fixed rod is vertically disposed on the gripping plate, one end of the sliding rod is coaxially slidably disposed within the fixed rod, the telescopic spring is disposed within the fixed rod, both ends of the telescopic spring are respectively connected to the sliding rod and the fixed rod, and the other end of the sliding rod is connected to the gripping unit.

[0011] As a preferred embodiment of the present invention, the gripping assembly further includes a gripping pump, a hydraulic tank filled with hydraulic oil, and several hollow connecting rods. The fixed rods and the sliding rods together form a hydraulic space with variable volume. The gripping pump and the hydraulic tank are both mounted on the gripping plate. The two ends of the gripping pump are respectively connected to the hydraulic tank and any of the hydraulic spaces. There is a connecting space between two adjacent fixed rods. Several connecting rods are matched one-to-one with several connecting spaces. Any connecting rod is set in the corresponding connecting space. The two ends of the connecting rod are respectively connected to two hydraulic spaces.

[0012] As a preferred embodiment of the present invention, the gripping unit includes a lifting plate and two clamping blocks. The lifting plate is connected to the sliding rod, and the two clamping blocks are slidably disposed at both ends of the lifting plate. The two clamping blocks can jointly clamp one end of the developing roller.

[0013] As a preferred embodiment of the present invention, the gripping unit further includes two driving units and a connecting plate. The connecting plate is rotatably mounted on the lifting plate. The two driving units are respectively disposed opposite to each other at both ends of the connecting plate. The two driving units correspond one-to-one with the two clamping blocks, and each driving unit is connected to the corresponding clamping block. The driving unit includes a hollow main body rod, a driving rod, and a driving spring. The main body rod is disposed at one end of the connecting plate. One end of the driving rod is slidably disposed within the main body rod. The driving spring is disposed within the main body rod. Both ends of the driving spring are connected to the main body rod and the driving rod, respectively. The other end of the driving rod is connected to the clamping block.

[0014] As a preferred embodiment of the present invention, the gripping unit further includes a hollow connecting rod and a connecting hose. The driving rod and the main rod together form a variable volume space. The two ends of the connecting hose are respectively connected to the volume space and the hydraulic space. The connecting rod is respectively connected to the volume spaces of the two driving units of the same gripping unit.

[0015] As a preferred embodiment of the present invention, the gripping unit further includes an overflow valve, which is sealed at the connection point between the connecting hose and the hydraulic space.

[0016] As a preferred embodiment of the present invention, the gripping assembly further includes several drainage units, a hollow drainage shell, and a drainage valve. The drainage shell has a drainage outlet, which is connected to the hydraulic tank. The drainage valve is sealed at the connection between the drainage outlet and the hydraulic tank. The drainage shell also has several drainage inlets, and the drainage inlets, hydraulic spaces, and drainage units are matched one-to-one. Each drainage unit includes a drainage pipe and a drainage check valve. The two ends of the drainage pipe are connected to the corresponding hydraulic space and the corresponding drainage inlet, respectively. The drainage check valve is located inside the drainage pipe and can lock or release the sealing relationship between the hydraulic space and the hydraulic tank.

[0017] As a preferred embodiment of the present invention, the gripping assembly further includes several reflux units, a hollow reflux housing, and a reflux valve. The reflux housing has a reflux output port, which is connected to the hydraulic tank. The reflux valve is sealed at the connection between the reflux output port and the hydraulic tank. The reflux housing also has several reflux input ports, and the several reflux input ports, several volume spaces, and several reflux units are matched one-to-one. Each reflux unit includes a reflux pipe and a reflux check valve. The two ends of the reflux pipe are connected to the corresponding volume space and the corresponding reflux input port, respectively. The reflux check valve is disposed inside the reflux pipe and can lock or release the sealing relationship between the volume space and the hydraulic tank.

[0018] The beneficial effects of this invention are as follows:

[0019] By incorporating a placement housing that can hold multiple developing rollers at once, the housing is placed on a frame and moved to a gripping system. The gripping component then picks up all the developing rollers from the housing and transfers them to the cleaning component for cleaning. This allows the cleaning equipment to clean multiple developing rollers simultaneously, significantly improving cleaning speed and efficiency. It solves the problem that in actual cleaning processes, the large number of developing rollers required for cleaning in factories, coupled with the fact that cleaning devices can only clean single rollers, leads to the cleaning speed of the cleaning device lagging behind the factory's manufacturing speed, thus delaying the overall production speed and efficiency of developing rollers. Attached Figure Description

[0020] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 This is an overall view of an automatic cleaning device for a developing roller according to the present invention;

[0022] Figure 2This is an overall view of the housing of an automatic cleaning device for developing rollers according to the present invention;

[0023] Figure 3 This is an overall diagram of the gripping system of an automatic cleaning device for developing rollers according to the present invention;

[0024] Figure 4 This is a front view of the gripping component of an automatic cleaning device for a developing roller according to the present invention.

[0025] Figure 5 This is a partial view of the gripping component of an automatic cleaning device for a developing roller according to the present invention;

[0026] Figure 6 This is an overall view of the cleaning components of an automatic cleaning device for a developing roller according to the present invention;

[0027] Figure 7 This is an internal cross-sectional view of the cleaning component of an automatic cleaning device for a developing roller according to the present invention.

[0028] Figure 8 This is an overall view of the gripping unit of an automatic cleaning device for developing rollers according to the present invention;

[0029] Figure 9 This is a side view of the gripping unit of an automatic cleaning device for a developing roller according to the present invention.

[0030] Figure 10 This is a diagram showing the composition of the telescopic unit of an automatic cleaning device for a developing roller according to the present invention.

[0031] Figure 11 This is a cross-sectional view of the drive unit of an automatic cleaning device for developing rollers according to the present invention.

[0032] Figure 12 This is a diagram showing the composition of the drive unit of an automatic cleaning device for developing rollers according to the present invention.

[0033] Figure 13 This is a diagram showing the oil circuit connection of the drain housing of an automatic cleaning device for a developing roller according to the present invention.

[0034] Figure 14 This is a diagram showing the oil circuit connection of the return housing of an automatic cleaning device for a developing roller according to the present invention.

[0035] Explanation of main symbols

[0036] In the diagram: 1. Frame; 2. Placement housing; 201. Placement trough; 3. Developing roller; 4. Slide rail; 5. Gripping assembly; 501. Gripping plate; 502. Gripping pump; 503. Hydraulic tank; 504. Connecting rod; 505. Drain housing; 506. Drain valve; 507. Drain pipe; 508. Drain check valve; 509. Return housing; 510. Return valve; 511. Return pipe; 512. Return check valve; 513. Abutment plate; 514. Rotating motor; 515. Rotating disc; 6. Cleaning assembly; 601. Cleaning frame; 602. Cleaning motor; 603. Cleaning roller; 604. Driven roller; 605. Conveyor 606. Cleaning belt; 607. Scraper; 608. Storage box; 7. Gripping unit; 701. Lifting plate; 702. Clamping block; 703. Connecting plate; 704. Connecting rod; 705. Connecting hose; 706. Overflow valve; 8. Telescopic unit; 801. Fixed rod; 802. Sliding rod; 803. Telescopic spring; 9. Drive unit; 901. Main rod; 902. Drive rod; 903. Drive spring; 904. Pressing rod; 905. Limiting block; 10. Lifting unit; 1001. Lifting cylinder; 1002. Sliding plate; 11. Locking unit; 1101. Locking spring; 1102. Locking rod. Detailed Implementation

[0037] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided.

[0038] Please see Figures 1-14This embodiment provides an automatic cleaning device for developing rollers, including a frame 1 and a placement housing 2. The placement housing 2 is placed on the frame 1, and a plurality of placement slots 201 are equally spaced along its axial direction. The placement slots 201 are used to place developing rollers 3. A gripping system and a cleaning assembly 6 are arranged sequentially along the moving direction of the placement housing 2. The gripping system includes a slide rail 4 and a gripping assembly 5. The slide rail 4 is mounted parallel to the top of the frame 1, and the axial direction of the slide rail 4 is consistent with the sliding direction of the placement housing 2. The gripping assembly 5 is slidably disposed on the slide rail 4. The gripping assembly 5 grips the developing rollers 3 in the placement housing 2 and moves them to the cleaning assembly 6 for cleaning. By setting up the placement housing 2, the placement housing 2... Several developing rollers 3 can be placed at once. The placement housing 2 is placed on the frame 1, and the placement housing 2 is moved to the gripping system. Then, the gripping component 5 grips all the developing rollers 3 in the placement housing 2 and moves them to the cleaning component 6 for cleaning. This allows the cleaning equipment in this solution to clean multiple developing rollers 3 at once, greatly improving the cleaning speed and efficiency. It solves the problem that in the actual cleaning process, the number of developing rollers 3 that need to be cleaned in the factory is large, but the cleaning device can only clean a single developing roller 3. As a result, the cleaning speed of the cleaning device cannot keep up with the manufacturing speed of the developing rollers 3 in the factory, thus delaying the overall production speed and efficiency of the developing rollers 3 in the factory.

[0039] Specifically, the gripping component 5 of this solution includes a gripping plate 501 and several gripping units 7. The gripping plate 501 is slidably mounted on the slide rail 4, and the gripping units 7 are vertically mounted on the gripping plate 501. The several gripping units 7 correspond one-to-one with several developing rollers 3. Each gripping unit 7 is used to grip the corresponding developing roller 3. By setting up the gripping units 7 and the gripping plate 501, the gripping unit 7 lowers its height to grip the corresponding developing roller 3. Then, the gripping unit 7 returns to its original height, and the gripping plate 501 begins to slide along the slide rail 4, so that the gripping unit 7 moves the developing roller 3 to the cleaning component 6 for cleaning.

[0040] Specifically, the gripping component 5 of this solution also includes several telescopic units 8, which correspond one-to-one with several gripping units 7. Each telescopic unit 8 is connected to the corresponding gripping unit 7. The telescopic unit 8 includes a hollow fixed rod 801, a sliding rod 802, and a telescopic spring 803. The fixed rod 801 is vertically mounted on the gripping plate 501. One end of the sliding rod 802 is coaxially slidably mounted inside the fixed rod 801. The telescopic spring 803 is mounted inside the fixed rod 801, and both ends of the telescopic spring 803 are connected to the sliding rod 802 and the fixed rod 801, respectively. The other end of the sliding rod 802 is connected to the gripping unit 7. This solution includes a telescopic unit 8, and by controlling the sliding of the sliding rod 802, the lifting and lowering movement of the gripping unit 7 can be achieved.

[0041] As can be seen from the above embodiments, the gripping unit 7 in this solution is used to grip the developing roller 3, while the telescopic unit 8 controls the gripping unit 7 to descend to a specified height, facilitating the gripping unit 7 to grip the developing roller 3. In the actual factory production process of the developing roller 3, various developing rollers 3 with different diameters are produced. Therefore, when the developing roller 3 is placed on the placement housing 2, there may be situations where the diameters of the developing rollers 3 on the placement housing 2 are different. In this case, the heights of the central axes of each developing roller 3 placed on the placement housing 2 are also different. In order to enable the telescopic unit 8 to control the corresponding gripping unit 7 to a specified height for gripping... The commonly used solution for gripping the corresponding developing roller 3 by unit 7 is to set up several driving devices, which are matched one-to-one with several telescopic units 8. Each driving device is set on the gripping plate 501, and the output end of the driving device is connected to the corresponding sliding rod 802. It should be noted that the driving device needs to have the function of identifying the distance between the gripping unit 7 and the corresponding developing roller 3, and also needs to have the function of controlling the corresponding sliding rod 802 to move up and down. By setting up the driving device, the sliding rod 802 can be controlled to move up and down to a specified height, thereby realizing the control of the height of the gripping unit 7.

[0042] However, the aforementioned drive device structure significantly increases the cost of the entire cleaning equipment. Furthermore, this solution is used in a cleaning workshop where humidity is high. When the drive device measures the distance between the gripping unit 7 and the corresponding developing roller 3, the presence of moisture greatly affects the measurement accuracy. Therefore, to reduce the overall design cost of the cleaning equipment and improve the accuracy of the gripping unit 7 gripping the corresponding developing roller 3, the gripping assembly 5 in this solution also includes a gripping pump 502, a hydraulic tank 503 filled with hydraulic oil, and several hollow connecting rods 504. The fixed rod 801 and the sliding rod 802 together form a variable-volume hydraulic space. It should be noted that the hydraulic space is not connected to the internal space of the fixed rod 801 where the telescopic spring 803 is located. Both the gripping pump 502 and the hydraulic tank 503 are mounted on the gripping plate 501. The two ends of the gripping pump 502 are connected to the hydraulic tank 503 and any of the hydraulic oil cylinders. The space is interconnected, with a connecting space between two adjacent fixed rods 801. Several connecting rods 504 are matched one-to-one with several connecting spaces. Any connecting rod 504 is set in the corresponding connecting space, and the two ends of the connecting rod 504 are respectively connected to two hydraulic spaces. By setting up a gripping pump 502, when the gripping pump 502 starts working, it can pump the hydraulic oil in the hydraulic tank 503 into any hydraulic space, so that the corresponding telescopic unit 8 starts working until the sliding rod 802 of the telescopic unit 8 slides to the specified height and stops moving. The volume of the hydraulic space no longer changes. At this time, the gripping pump 502 continues to work, and the overflowing hydraulic oil will flow to the other hydraulic spaces through the connecting rod 504. Similarly, until the sliding rod 802 of the other telescopic units 8 slides to the specified height and stops moving, the oil pressure in the hydraulic space will continue to rise. When the oil pressure in the hydraulic space reaches a certain critical value, the gripping pump 502 stops working until all gripping units 7 have reached the specified height position. It should be noted that this solution also includes a hydraulic sensor, which is installed in any hydraulic space. When the hydraulic sensor detects that the oil pressure in the hydraulic space reaches a preset value, the hydraulic sensor communicates with the gripping pump 502 and can control the gripping pump 502 to stop working.

[0043] It is worth noting that, as described in the above embodiments, in order to achieve the function of stopping the sliding rod 802 after reaching the specified height, the gripping unit 7 of this solution is also provided with an abutment plate 513. The abutment plate 513 is horizontally connected to the sliding rod 802. When the sliding rod 802 moves to the bottom, the abutment plate 513 slides along with the sliding rod 802. It should be noted that after the housing 2 is placed on the frame 1 and moved to the bottom of the gripping system, from top to bottom, the abutment plate 513 is located on one end of the corresponding developing roller 3. When the sliding rod 802 moves to the specified height, the abutment plate 513 and one end of the developing roller 3 are abutted against each other, restricting the abutment plate 513 from continuing to move to the bottom. Similarly, it restricts the sliding rod 802 from continuing to slide to the bottom.

[0044] It is worth noting that the housing 2 of this design has several placement slots 201 for placing developing rollers 3. In order to ensure that the housing 2 of this design can accommodate developing rollers 3 of various diameters, the width of the placement slots 201 is greater than the maximum diameter developing roller 3 that can be produced in the factory. At the same time, in order to ensure that the position of the central axis of the developing roller 3 is always on the same vertical plane as the position of the symmetrical central axis of the corresponding placement slot 201 after the developing rollers 3 of different diameters are placed in the placement slots 201, the bottom of the placement slots 201 of this design is set with a symmetrical arc, and the diameter of the arc at the bottom of the placement slots 201 is greater than the diameter of the maximum diameter developing roller 3 that can be produced in the factory.

[0045] It is also worth noting that, in order to ensure that the developing roller 3 does not tilt after the abutting plate 513 abuts against one end of the developing roller 3, the gripping system in this solution is configured with two sets of gripping systems. The two sets of gripping systems are set opposite to each other, and the two sets of gripping systems correspond one-to-one with the two ends of the developing roller 3. Each gripping system is used to grip one end of the developing roller 3. With this configuration, the abutting plates 513 of the two sets of gripping systems move synchronously and can abut against both ends of the same developing roller 3 at the same time, which can prevent the developing roller 3 from tilting when it engages with the abutting plate 513.

[0046] Specifically, after the sliding rod 802 moves to the designated position, the gripping unit 7 can grip one end of the corresponding developing roller 3. The specific structure of the gripping unit 7 is as follows: The gripping unit 7 includes a lifting plate 701 and two clamping blocks 702. The lifting plate 701 is connected to the sliding rod 802. The two clamping blocks 702 are slidably disposed at both ends of the lifting plate 701. The two clamping blocks 702 can jointly clamp one end of the developing roller 3. By setting two clamping blocks 702, the two clamping blocks 702 can jointly clamp one end of the developing roller 3 by sliding. It should be noted that the height of the clamping block 702 in this scheme is greater than the maximum diameter of the developing roller 3's mandrel, and the top surface of the clamping block 702 is on the same horizontal plane as the bottom surface of the abutment plate 513. To avoid ambiguity, it should be noted that the gripping of one end of the developing roller 3 by the gripping unit 7 in this scheme refers to gripping the mandrel of one end of the developing roller 3.

[0047] Furthermore, to control the movement of the clamping blocks 702, the gripping unit 7 of this solution also includes two drive units 9 and a connecting plate 703. The connecting plate 703 is rotatably mounted on the lifting plate 701. The two drive units 9 are respectively disposed opposite to each other at both ends of the connecting plate 703. The two drive units 9 correspond one-to-one with the two clamping blocks 702, and each drive unit 9 is connected to the corresponding clamping block 702. The drive unit 9 includes a hollow main rod 901, a drive rod 902, and a drive spring 903. The main rod 901 is disposed on the connecting plate 703. One end of the drive rod 902 is slidably disposed within the main body rod 901, and the drive spring 903 is disposed within the main body rod 901. The two ends of the drive spring 903 are connected to the main body rod 901 and the drive rod 902 respectively, and the other end of the drive rod 902 is connected to the clamping block 702. By setting the main body rod 901 and the drive rod 902, when the drive rod 902 begins to slide along the axial direction of the main body rod 901, it will drive the clamping block 702 connected to it to move, thereby realizing that the two clamping blocks 702 jointly clamp the developing roller 3 core shaft. Similarly, since the diameter of the mandrel of each developing roller 3 is different, the actual sliding distance required for the driving rod 902 of each driving unit 9 is different. In order to enable each driving unit 9 to control the corresponding clamping block 702 to clamp the corresponding developing roller 3 mandrel, the commonly used solution is to set up several control devices, which are matched one-to-one with several driving units 9. Each control device is set on the connecting plate 703, and the output end of the control device is connected to the driving rod 902. It should be noted that the control device needs to have the function of identifying the distance between the clamping block 702 and one end of the developing roller 3 mandrel, and also needs to have the function of controlling the driving rod 902 to slide. By setting up the control device, the sliding of the driving rod 902 can be realized, thereby controlling the clamping block 702 to clamp the developing roller 3 mandrel.

[0048] However, the aforementioned control device structure significantly increases the cost of the entire cleaning equipment. Furthermore, this solution is used in a cleaning workshop where humidity is high. When the control device measures the distance between the clamping block 702 and the corresponding developing roller 3 spindle, the presence of moisture greatly affects the measurement accuracy. Therefore, to reduce the overall design cost of the cleaning equipment and improve the accuracy of the clamping block 702 gripping the corresponding developing roller 3 spindle, the gripping unit 7 in this solution also includes a hollow connecting rod 704 and a connecting hose 705. The drive rod 902 and the main rod 901 together form a variable-volume space. The two ends of the connecting hose 705 are connected to the volume space and the hydraulic space, respectively. The connecting rod 704 is connected to the volume of the two drive units 9 of the same gripping unit 7. The spaces are interconnected. With this setup, hydraulic oil first fills the hydraulic spaces. Once each hydraulic space is full, the sliding rod 802 has driven the corresponding gripping unit 7 to slide to the specified height. After the oil pressure in the hydraulic space rises to the specified oil pressure range, the hydraulic oil in the hydraulic space continues to flow into any volume space, causing the corresponding drive unit 9 to start working. This continues until the drive rod 902 of the drive unit 9 slides to the specified position, enabling the two clamping blocks 702 to jointly clamp the mandrel of the corresponding developing roller 3. Then, the drive rod 902 of the drive unit 9 stops sliding, and the volume of the volume space no longer changes. At this time, the gripping pump 502 continues to work, and the hydraulic oil overflowing from any hydraulic space flows to the corresponding volume space through the connecting hose 705, enabling each drive unit 9 to drive and clamp the clamping block 702.

[0049] Furthermore, it is worth noting that, in order to ensure that the sliding rods 802 of each telescopic unit 8 slide to the specified height before controlling the corresponding drive unit 9 to drive the clamping block 702 to clamp the mandrel of the developing roller 3, the gripping unit 7 of this solution also includes an overflow valve 706. The overflow valve 706 is sealed at the connection between the connecting hose 705 and the hydraulic space. By setting the overflow valve 706, the overflow valve 706 will open when the volume in the hydraulic space no longer changes and the oil pressure in the hydraulic space reaches the working oil pressure of the overflow valve 706. The hydraulic oil in the hydraulic space will flow to the corresponding volume space through the overflow valve 706.

[0050] Furthermore, since this solution uses two abutment plates 513 to synchronously abut against the mandrels at both ends of the developing roller 3, ensuring that the developing roller 3 does not tilt when the abutment plates 513 press against it, in order to ensure that the abutment plates 513 of the two gripping systems can synchronously press against the mandrel of the same developing roller 3 when filling each hydraulic space with hydraulic oil, it is necessary to ensure that the volume in one hydraulic space does not change before the hydraulic oil can flow into another hydraulic space. Based on this, this solution also includes several limiting valves, which are matched one-to-one with several connecting rods 504. Each limiting valve is set in the corresponding connecting rod 504. The function of the limiting valve is not only to restrict the hydraulic oil to flow in one direction only, but also to control the opening of the limiting valve only when the oil pressure in the hydraulic space reaches a certain level, so that the hydraulic oil can flow from one hydraulic space to another. It is also worth noting that the oil pressure required to drive the limiting valve to open is less than the oil pressure required to drive the overflow valve 706 to open.

[0051] In addition, this solution also includes a lifting unit 10, which includes a lifting cylinder 1001 and a sliding plate 1002. The sliding plate 1002 is slidably mounted on the slide rail 4 along the axial direction of the slide rail 4. The lifting cylinder 1001 is vertically mounted on the sliding plate 1002, and the output end of the lifting cylinder 1001 is connected to the gripping plate 501. With this arrangement, after the gripping unit 7 grips the mandrel of the developing roller 3, the lifting cylinder 1001 starts working, driving the gripping plate 501 to rise, so that the developing roller 3 is detached from the placement housing 2, making it convenient for the gripping unit 7 to control the developing roller 3 to move to the cleaning assembly 6 for cleaning. It is worth noting that before the gripping unit 7 grips the mandrel of the developing roller 3, the lifting cylinder 1001 controls the gripping plate 501 to descend, making it convenient for the gripping unit 7 to control the height of the gripping plate 501 to grip the mandrel of the developing roller 3.

[0052] After the cleaning component 6 completes the cleaning process on the developing roller 3, the gripping unit 7 needs to control the developing roller 3 to be placed back into the placement housing 2. Specifically, the sliding plate 1002 first slides to the top of the placement housing 2, then the lifting cylinder 1001 starts to work, driving the gripping plate 501 to drop in height, so that the developing roller 3 is completely placed back into the placement housing 2. Then, the two clamping blocks 702 need to be driven to release their clamping effect on the developing roller 3 spindle, and then the telescopic unit 8 is controlled to return to its original position.

[0053] Based on this, in order to achieve the effect of driving the two clamping blocks 702 to release their clamping effect on the developing roller 3 spindle, the gripping component 5 of this solution also includes several reflux units, an internally hollow reflux housing 509, and a reflux valve 510. The reflux housing 509 has a reflux output port, which is connected to the hydraulic tank 503. The reflux valve 510 is sealed at the connection between the reflux output port and the hydraulic tank 503. The reflux housing 509 also has several reflux input ports. The several reflux input ports, several volume spaces, and several reflux units are matched one-to-one. The reflux unit includes a reflux pipe 511 and a reflux check valve 512. The two ends of the reflux pipe 511 are connected to the corresponding volume space and the corresponding reflux input port, respectively. The reflux check valve 512 is disposed inside the reflux pipe 511. It should be noted that the function of the return check valve 512 is only to allow hydraulic oil located in the volume space to flow to the return housing 509, while hydraulic oil located in the return housing 509 cannot flow to the volume space. With the return valve 510 provided, when the return valve 510 is opened, the return valve 510 releases the sealing relationship between the volume space and the hydraulic tank 503, and the hydraulic oil located in the volume space flows into the hydraulic tank 503. At this time, the drive rod 902 returns to its original position due to the force of the drive spring 903, so that the two clamping blocks 702 release their clamping effect with the mandrel of the developing roller 3. When the return valve 510 is closed, the return valve 510 relocks the sealing relationship between the volume space and the hydraulic tank 503, and the hydraulic oil located in the volume space cannot flow into the hydraulic tank 503.

[0054] Similarly, to restore the sliding rod 802 to its original position, the gripping component 5 of this solution also includes several drainage units, a hollow drainage shell 505, and a drainage valve 506. The drainage shell 505 has a drainage outlet, which is connected to the hydraulic tank 503. The drainage valve 506 is sealed at the connection between the drainage outlet and the hydraulic tank 503. The drainage shell 505 also has several drainage inlets, and the drainage inlets, hydraulic spaces, and drainage units are matched one-to-one. Each drainage unit includes a drainage pipe 507 and a drainage check valve 508. The two ends of the drainage pipe 507 are connected to the corresponding hydraulic space and the corresponding drainage inlet, respectively. The drainage check valve 508 is located at the connection between the drainage outlet and the hydraulic tank 503. Inside pipe 507, it should be noted that the function of the relief check valve 508 is only to allow hydraulic oil located in the hydraulic space to flow to the relief housing 505, while hydraulic oil located in the relief housing 505 cannot flow to the hydraulic space. By providing a relief valve 506, when the relief valve 506 is open, the relief valve 506 releases the sealing relationship between the hydraulic space and the hydraulic tank 503, and the hydraulic oil located in the hydraulic space flows into the hydraulic tank 503. At this time, the sliding rod 802 returns to its original position due to the force of the extension spring 803. When the relief valve 506 is closed, the relief valve 506 relocks the sealing relationship between the hydraulic space and the hydraulic tank 503, and the hydraulic oil located in the hydraulic space cannot flow into the hydraulic tank 503.

[0055] Specifically, the cleaning assembly 6 of this solution includes a cleaning frame 601, a cleaning motor 602, a cleaning roller 603, a driven roller 604, a conveyor belt 605, and a cleaning belt 606. Along the axial direction of the slide rail 4, the cleaning frame 601 is located behind the frame 1, at the bottom of one end of the slide rail 4. The cleaning roller 603 is rotatably mounted on one end of the cleaning frame 601, and the driven roller 604 is rotatably mounted on the other end of the cleaning frame 601. The conveyor belt 605 is rotatably sleeved on the cleaning roller 603 and the driven roller. On 604, the cleaning belt 606 is fitted on top of the conveyor belt 605, and the cleaning motor 602 is mounted on the cleaning frame 601. The output end of the cleaning motor 602 is coaxially connected to the cleaning roller 603, controlling the rotation of the cleaning roller 603, which in turn drives the cleaning belt 606 to rotate. When the gripping system moves the developing roller 3 directly above the cleaning belt 606, the rotation of the cleaning belt 606, after the developing roller 3 and the cleaning belt 606 are tangentially engaged, can clean the rubber debris and burrs attached to the developing roller 3, thus achieving the cleaning treatment of the developing roller 3.

[0056] Furthermore, the cleaning component 6 of this solution also includes a scraper 607 and a hollow storage box 608. The scraper 607 is inclinedly arranged inside the cleaning frame 601, with one end of the scraper 607 in contact with the cleaning belt 606. The storage box 608 is arranged inside the cleaning frame 601, and its position is located at the point where the scraper 607 and the cleaning belt 606 are in contact. With the scraper 607, the scraper 607 can scrape off the rubber shavings and burrs attached to the cleaning belt 606, thereby cleaning the cleaning belt 606. The function of the storage box 608 is to collect the rubber shavings and burrs scraped off by the scraper 607.

[0057] As can be seen from the above embodiments, in order to improve the cleaning effect of the cleaning belt 606 on the developing roller 3, it is required that the developing roller 3 also needs to rotate when the cleaning belt 606 and the developing roller 3 are in contact with each other. Based on this, the gripping unit 7 of this solution is also required to have a rotating structure. Specifically, the gripping unit 7 of this solution also includes a rotating motor 514 and a rotating disk 515. The rotating motor 514 is mounted on the lifting plate 701, and the output end of the rotating motor 514 is coaxially connected to the rotating disk 515. The rotating disk 515 is rotatably mounted on the lifting plate 701, and the rotating disk 515 has a rotating groove. The connecting disk 703 is rotatably mounted in the rotating groove. By providing the rotating motor 514, when the rotating motor 514 starts working, it can drive the rotating disk 515 to rotate, thereby realizing that the rotating disk 515 drives the connecting disk 703 to rotate synchronously, so that the gripping unit 7 controls the developing roller 3 to rotate.

[0058] It is worth noting that, since the gripping unit 7 in this solution needs to ensure that the two clamping blocks 702 are in a state of jointly clamping the mandrel of the developing roller 3 before rotation, the gripping unit 7 in this solution also includes two locking units 11. The two locking units 11 of the same gripping unit 7 are matched one-to-one with the two driving units 9 of the same gripping unit 7. Each locking unit 11 is connected to the corresponding driving unit 9. The driving unit 9 also includes a pressing rod 904 and a limiting block 905 coaxially connected. The locking unit 11 includes a locking spring 1101 and a locking rod 1102. The main rod 901 has an opening. The pressing groove and the limiting groove are connected at both ends to the volume space and the pressing groove, respectively. A limiting block 905 is slidably disposed within the limiting groove, and a pressing rod 904 is slidably disposed within the pressing groove. The outer diameter of the limiting block 905 is equal to the inner diameter of the limiting groove, and the outer diameter of the pressing rod 904 is equal to the inner diameter of the pressing groove. This arrangement ensures that hydraulic oil within the volume space will not overflow from the pressing groove and the limiting groove during the sliding of the limiting block 905 and the pressing rod 904. Furthermore, the outer diameter of the limiting block 905 is larger than the outer diameter of the pressing rod 904. The sliding distance of the pressing rod 904 can be limited. Furthermore, the locking rod 1102 is slidably mounted on the connecting plate 703, and the sliding direction of the locking rod 1102 coincides with the sliding direction of the pressing rod 904. The two ends of the locking spring 1101 are connected to the locking rod 1102 and the connecting plate 703 respectively. One end of the pressing rod 904 extending from the pressing groove is connected to one end of the locking rod 1102. The other end of the locking rod 1102 can lock or release its abutment relationship with the rotating plate 515. With this arrangement, under normal conditions, due to the force of the locking spring 1101, the locking rod 1102... The pressing rod 904 will be pushed to move into the pressing groove, causing the locking rod 1102 to release its abutment against the rotating disk 515. Even if the rotating disk 515 rotates at this time, it cannot drive the connecting disk 703 to rotate. Only when the volume space is filled with hydraulic oil and the hydraulic oil reaches the rated oil pressure, due to the force of the hydraulic oil on the pressing rod 904, the pressing rod 904 will drive the locking rod 1102 to slide, so that the locking rod 1102 locks its abutment against the rotating disk 515. At this time, the rotating disk 515 rotates, which can drive the connecting disk 703 to rotate together. It should be noted that the rated oil pressure of the hydraulic oil in the volume space means that the hydraulic oil pressure in the volume space has achieved the control of the driving rod 902 to complete the movement, and the two clamping blocks 702 can jointly achieve the clamping effect on the mandrel of the developing roller 3.

[0059] In addition, it should be noted that the abutment plate 513 and the clamping block 702 in this solution are both mounted on the connecting plate 703. Therefore, when the connecting plate 703 starts to rotate, it can drive the abutment plate 513 and the clamping block 702 to rotate together.

[0060] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An automatic cleaning device for developing rollers, comprising a frame, characterized in that: It also includes a placement housing, which is placed on the frame. The placement housing has several placement slots evenly spaced along its axial direction. The placement slots are used to place developing rollers. A gripping system and a cleaning assembly are arranged sequentially along the moving direction of the placement housing. The gripping system includes a slide rail and a gripping assembly. The slide rail is mounted parallel to the top of the frame. The gripping assembly is slidably mounted on the slide rail. The gripping assembly grips the developing rollers in the placement housing and moves them to the cleaning assembly for cleaning. The gripping assembly includes a gripping plate and several gripping units. The gripping plate is slidably mounted on the slide rail, and the gripping units are vertically mounted on the gripping plate. The several gripping units correspond one-to-one with several developing rollers, and each gripping unit is used to grip the corresponding developing roller. The gripping assembly further includes several telescopic units, each corresponding to a gripping unit. Each telescopic unit is connected to its corresponding gripping unit. Each telescopic unit includes a hollow fixed rod, a sliding rod, and a telescopic spring. The fixed rod is vertically mounted on the gripping plate. One end of the sliding rod is slidably mounted coaxially within the fixed rod. The telescopic spring is mounted within the fixed rod, with both ends connected to the sliding rod and the fixed rod, respectively. The other end of the sliding rod is connected to the gripping unit. The gripping assembly further includes a gripping pump, a hydraulic tank filled with hydraulic oil, and several hollow connecting rods. The fixed rods and the sliding rods together form a hydraulic space with variable volume. The gripping pump and the hydraulic tank are both mounted on the gripping plate. The two ends of the gripping pump are respectively connected to the hydraulic tank and any of the hydraulic spaces. There is a connecting space between two adjacent fixed rods. Several connecting rods are matched one-to-one with several connecting spaces. Any connecting rod is set in the corresponding connecting space. The two ends of the connecting rod are respectively connected to two hydraulic spaces. The gripping unit includes a lifting plate and two clamping blocks. The lifting plate is connected to the sliding rod. The two clamping blocks are slidably disposed at both ends of the lifting plate. The two clamping blocks can jointly clamp one end of the developing roller mandrel. The gripping unit further includes two drive units and a connecting plate. The connecting plate is rotatably mounted on the lifting plate. The two drive units are respectively disposed opposite to each other at both ends of the connecting plate. The two drive units correspond one-to-one with the two clamping blocks, and each drive unit is connected to the corresponding clamping block. The drive unit includes a hollow main body rod, a drive rod, and a drive spring. The main body rod is disposed at one end of the connecting plate. One end of the drive rod is slidably disposed inside the main body rod. The drive spring is disposed inside the main body rod. Both ends of the drive spring are connected to the main body rod and the drive rod, respectively. The other end of the drive rod is connected to the clamping block.

2. The automatic cleaning equipment for developing rollers according to claim 1, characterized in that: The gripping unit also includes a hollow connecting rod and a connecting hose. The drive rod and the main rod together form a variable volume space. The two ends of the connecting hose are respectively connected to the volume space and the hydraulic space. The connecting rod is respectively connected to the volume spaces of the two drive units of the same gripping unit.

3. The automatic cleaning equipment for developing rollers according to claim 2, characterized in that: The gripping unit also includes an overflow valve, which is sealed at the connection point between the connecting hose and the hydraulic space.

4. The automatic cleaning equipment for developing rollers according to claim 1, characterized in that: The gripping assembly also includes several drainage units, a hollow drainage shell, and a drainage valve. The drainage shell has a drainage outlet that is connected to the hydraulic tank. The drainage valve is sealed at the connection between the drainage outlet and the hydraulic tank. The drainage shell also has several drainage inlets. Each drainage inlet, hydraulic space, and drainage unit corresponds to a drainage unit. Each drainage unit includes a drainage pipe and a drainage check valve. The two ends of the drainage pipe are connected to the corresponding hydraulic space and the corresponding drainage inlet, respectively. The drainage check valve is located inside the drainage pipe and can lock or release the seal between the hydraulic space and the hydraulic tank.

5. An automatic cleaning device for a developing roller according to claim 3, characterized in that: The gripping assembly also includes several return units, a hollow return housing, and a return valve. The return housing has a return output port, which is connected to the hydraulic tank. The return valve is sealed at the connection between the return output port and the hydraulic tank. The return housing also has several return input ports, and the several return input ports, several volume spaces, and several return units are matched one-to-one. The return unit includes a return pipe and a return check valve. The two ends of the return pipe are connected to the corresponding volume space and the corresponding return input port, respectively. The return check valve is located inside the return pipe and can lock or release the sealing relationship between the volume space and the hydraulic tank.

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