Automatic spraying equipment for developing roller

Abstract

The invention discloses automatic spraying equipment for developing rollers. The automatic spraying equipment comprises two turntables and a plurality of pairs of developing roller clamping parts arranged in pairs, the two turntables are oppositely arranged and synchronously rotate, and the axes of the turntables are perpendicular to the gravity direction; in any pair of developing roller clamping parts, one developing roller clamping part is arranged on one rotating disc, the other developing roller clamping part is arranged on the other rotating disc, and the two developing roller clamping parts are oppositely arranged and used for clamping a developing roller; the developing roller clamping part can slide along the axis direction of the turntable and is connected with a wedge block part; a counterweight part is slidably connected to the position, corresponding to the wedge block part, of the rotary table, the counterweight part can slide in the radial direction of the rotary table, and when the counterweight part moves in the direction close to the axis, under the action of the pressure spring, the corresponding pair of developing roller clamping parts move in opposite directions. Wherein the two developing roller clamping parts clamp the developing roller through the relative movement of the counterweight part and the wedge block part, so that the spraying stability of the developing roller is improved on the premise of low control precision.

Description

Technical Field

[0001] The invention relates to the technical field of developing roller spraying structures, in particular to automatic developing roller spraying equipment. Background Art

[0002] The developer roller, a core component in laser printers, is responsible for evenly transferring toner particles to the photosensitive drum surface, forming an electrostatic latent image. To achieve this function, the developer roller must be coated to possess the appropriate resistivity, surface properties, and mechanical stability to ensure precise and controlled toner transfer.

[0003] At present, in the developer roller spraying process, traditional equipment generally adopts a single-end clamping method for spraying. When the spraying structure moves along the axial direction of the developer roller for spraying, due to the single-end clamping, the developer roller is prone to radial runout and axial vibration during the spraying process, especially in the free end area. Its instability increases significantly, making it difficult to maintain consistent spraying distance and angle, resulting in uneven coating thickness, which ultimately affects the performance of the developer roller and printing quality.

[0004] To address the stability issues associated with single-end clamping, those skilled in the art have proposed numerous improvements, such as double-end clamping developer roller spraying equipment, which utilizes two clamping mechanisms to simultaneously clamp both ends of the developer roller. However, in practice, this introduces a more complex coordinated control issue. Specifically, if control accuracy causes the two clamping mechanisms to operate inconsistently, this can easily cause the developer roller to shift, altering the relative position between the spray gun and the developer roller surface, and thus affecting spray stability.

[0005] Therefore, how to reduce the influence of control accuracy and improve the stability of the developing roller during spraying is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0006] The object of the present invention is to provide an automatic developing roller spraying device to solve the technical problem that it is difficult for those skilled in the art to improve the spraying stability of the developing roller under the premise of low control accuracy.

[0007] To achieve this object, the present invention adopts the following technical solutions: An automatic developing roller spraying device comprises two rotating disks and a plurality of pairs of developing roller clamping portions arranged in pairs; the two rotating disks are arranged opposite each other and rotate synchronously, and the axes of the rotating disks are arranged perpendicular to the direction of gravity; in any pair of developing roller clamping portions, one developing roller clamping portion is arranged on one rotating disk, and the other developing roller clamping portion is arranged on the other rotating disk, and the two developing roller clamping portions are arranged opposite each other to clamp the developing roller; The developing roller clamping portion is capable of sliding along the axial direction of the rotating disk, and is connected to a wedge portion; a counterweight portion is slidably connected to the rotating disk at a position corresponding to the wedge portion, and the counterweight portion is capable of sliding along the radial direction of the rotating disk; a compression spring is installed between the wedge portion and the rotating disk, and the compression spring causes the corresponding pair of developing roller clamping portions to move toward each other; When the counterweight portion moves in a direction close to the axis, the counterweight portion separates from the wedge block portion, causing the corresponding pair of developing roller clamping portions to move toward each other; when the counterweight portion moves in a direction away from the axis, the counterweight portion abuts against the wedge block portion, causing the corresponding pair of developing roller clamping portions to move away from each other.

[0008] Optionally, a developing roller upper position, a developing roller spraying position and a developing roller lower position are provided at intervals outside the turntable; the developing roller upper position and the developing roller spraying position are both located above the axis, and the developing roller lower position is located below the axis; The wedge block portion includes a wedge block inclined surface arranged toward the developing roller clamping portion, and the distance between the wedge block inclined surface and the developing roller clamping portion increases gradually along a direction close to the axis.

[0009] Optionally, a clamping slide is provided at a position of the turntable corresponding to the developing roller clamping portion, and the developing roller clamping portion includes a clamping slide slidably connected to the clamping slide, and a clamping disk is installed at the end of the clamping slide, and a plurality of clamping blocks are arranged on the clamping disk; an air bag is embedded in the clamping block, and an air injection assembly is provided in the clamping slide, and the air injection assembly is used to inject air into the air bag after the clamping block clamps the developing roller.

[0010] Optionally, the gas injection assembly includes an air cavity provided in the clamping slide and a piston member slidably connected to the air cavity, one end of the piston member extends to the outside of the clamping slide and is fixedly connected to the wedge portion, and the other end of the piston member is disposed in contact with a cavity wall of the air cavity; The outer wall of the clamping slide is formed with a stepped portion, and the clamping slide is provided with a protruding limiting portion at a position corresponding to the stepped portion; When the counterweight moves in a direction away from the axis, a first length value is left between the step portion and the limit portion, and the compression amount of the compression spring is a second length value; when the counterweight moves in a direction close to the axis, the step portion abuts against the limit portion, and the compression amount of the compression spring is zero; The second length value is greater than the first length value.

[0011] Optionally, one end of the air cavity close to the wedge portion is further connected to a synchronization channel, and one end of the piston member passes through the synchronization channel; A stopper is protruding from the piston member, and an air passage is opened on the piston member, one end of the air passage is communicated with the air cavity, and a synchronization block is protruding from the synchronization channel at a position corresponding to the stopper; When the counterweight moves in a direction away from the axis, the piston slides a third length relative to the clamping slide until the stopper abuts against the synchronization block, and the other end of the air passage is exposed outside the synchronization channel; after the piston slides the third length relative to the clamping slide, the piston and the clamping slide slide synchronously slide the first length; The sum of the first length value and the third length value is equal to the second length value.

[0012] Optionally, an elastic block is protruded from the inner wall of the synchronization channel on the side of the synchronization block facing the air cavity; When the counterweight portion moves in a direction close to the axis, the piston member and the clamping slide slide synchronously slide the first length value, and the stop block passes the elastic block; after the piston member and the clamping slide slide synchronously slide the first length value, the step portion abuts against the limit portion, the piston member slides the third length value relative to the clamping slide, and the stop block passes the elastic block.

[0013] Optionally, the stop block includes a first inclined surface and a second inclined surface arranged in sequence in a direction away from the wedge block portion, the angle between the first inclined surface and the piston member is smaller than the angle between the second inclined surface and the piston member, and the width between the first inclined surface and the piston member is greater than the width between the second inclined surface and the piston member.

[0014] Optionally, when the counterweight moves in a direction close to the axis, the distance between the other end of the airway and the opening of the synchronization channel is less than the third length value and greater than two-thirds of the third length value.

[0015] Optionally, a slide rail portion is provided at a position of the turntable corresponding to the counterweight portion, the counterweight portion is slidably connected to the slide rail portion, and the counterweight portion is provided with a threaded hole, the threaded hole is threadedly connected with a top screw, and the end of the top screw abuts against the wall of the slide rail portion.

[0016] Optionally, a rotating shaft is coaxially connected between the two turntables, and a driving assembly is installed on one side of one of the turntables, and the driving assembly is used to drive the turntable to rotate.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The automatic developer roller spraying equipment provided by the present invention has two rotating discs that rotate synchronously. Since the axes of the rotating discs are arranged perpendicular to the direction of gravity, the counterweight portion periodically moves relative to the axis during the rotation of the rotating discs. When the counterweight portion moves in a direction close to the axis, the counterweight portion separates from the wedge portion, and under the action of the compression spring, the corresponding pair of developer roller clamping portions move toward each other, thereby clamping the developer roller. During the above process, the two developer roller clamping portions move toward each other, clamping the developer roller from both sides to ensure the stability of subsequent spraying of the developer roller. At the same time, the two developer roller clamping portions clamp the developer roller through the relative movement of the counterweight portion and the wedge portion, eliminating the need for complex coordinated control, thereby improving the spraying stability of the developer roller while maintaining low control accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] The structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not intended to limit the conditions under which the present invention can be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportional relationships, or adjustments in size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and objectives that can be achieved by the present invention.

[0020] Figure 1 A first structural schematic diagram of the automatic developing roller spraying device provided by an embodiment of the present invention; Figure 2 A second structural schematic diagram of the automatic developing roller spraying device provided by an embodiment of the present invention; Figure 3 A third structural schematic diagram of the automatic developing roller spraying device provided by an embodiment of the present invention; Figure 4 A schematic diagram of a first partial structure of an automatic developing roller spraying device provided by an embodiment of the present invention; Figure 5 A schematic diagram of a second partial structure of the automatic developing roller spraying device provided by an embodiment of the present invention; Figure 6 for Figure 5 Schematic diagram of the local structure along AA; Figure 7A schematic diagram of a partial cross-sectional structure of an automatic developing roller spraying device provided by an embodiment of the present invention; Figure 8 for Figure 7 A schematic diagram of the local enlarged structure at point B; Figure 9 for Figure 7 A schematic diagram of the local enlarged structure at C; Illustrations: 100, turntable; 110, clamping slide; 111, limiter; 120, slide rail; 200, developing roller clamping portion; 210, clamping slide; 211, air cavity; 212, stepped portion; 213, synchronization channel; 214, synchronization block; 215, elastic block; 220, clamping disk; 230, clamping block; 300, wedge block portion; 301, wedge block inclined surface; 400, counterweight portion; 410, threaded hole; 420, counterweight block; 430, pushing block; 510, piston member; 520, stopper; 521, first inclined surface; 522, second inclined surface; 530, airway; 600, rotating shaft; 700, drive assembly. DETAILED DESCRIPTION

[0021] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally located component.

[0023] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0024] The automatic developing roller spraying equipment provided in this embodiment is suitable for scenarios where the roller is sprayed, and is particularly suitable for scenarios where a conductive layer is sprayed on the developing roller. In this embodiment, the rotating structure of the automatic developing roller spraying equipment is improved, thereby improving the spraying stability of the developing roller under the premise of low control accuracy.

[0025] like Figures 1 to 3 As shown, the automatic developing roller spraying equipment in this embodiment includes two turntables 100 and multiple pairs of developing roller clamping parts 200 arranged in pairs; the two turntables 100 are arranged opposite to each other and rotate synchronously, and the axes of the turntables 100 are arranged perpendicular to the direction of gravity; in any pair of developing roller clamping parts 200, one developing roller clamping part 200 is arranged on one turntable 100, and the other developing roller clamping part 200 is arranged on the other turntable 100, and the two developing roller clamping parts 200 are arranged opposite to each other for clamping the developing roller.

[0026] like Figures 1 to 6 As shown, the developing roller clamping portion 200 can slide along the axial direction of the turntable 100, and the developing roller clamping portion 200 is connected to the wedge portion 300; the turntable 100 is slidably connected to the counterweight portion 400 at the position corresponding to the wedge portion 300, and the counterweight portion 400 can slide along the radial direction of the turntable 100; a compression spring (not shown) is installed between the wedge portion 300 and the turntable 100, and the compression spring causes the corresponding pair of developing roller clamping portions 200 to move toward each other, as shown specifically Figure 6 As shown, the arrangement of the compression spring enables the developing roller clamping portion 200 to move upward along the axial direction, that is, the developing roller clamping portion 200 moves away from the turntable 100 along the axial direction. Correspondingly, between the two turntables 100, the compression springs on both sides enable the developing roller clamping portions 200 on both sides to move toward each other, thereby clamping the developing roller.

[0027] Therefore, when the counterweight portion 400 moves in a direction close to the axis, the counterweight portion 400 separates from the wedge portion 300, and under the action of the compression spring, the corresponding pair of developing roller clamping portions 200 move toward each other to clamp the developing roller; when the counterweight portion 400 moves in a direction away from the axis, the counterweight portion 400 abuts against the wedge portion 300, overcoming the elastic force of the compression spring, and causing the corresponding pair of developing roller clamping portions 200 to move away from each other to release the developing roller.

[0028] In summary, when the two turntables 100 rotate synchronously, since the axis of the turntable 100 is arranged perpendicular to the direction of gravity, the counterweight portion 400 will periodically move relative to the axis during the rotation of the turntable 100; wherein, when the counterweight portion 400 moves in a direction close to the axis, the counterweight portion 400 separates from the wedge portion 300, and under the action of the compression spring, the corresponding pair of developing roller clamping portions 200 are moved toward each other, thereby playing the role of clamping the developing roller. In the above process, the two developing roller clamping portions 200 move toward each other, clamping the developing roller from both sides to ensure the stability of the subsequent spraying of the developing roller; at the same time, the two developing roller clamping portions 200 clamp the developing roller through the relative movement of the counterweight portion 400 and the wedge portion 300, without the need for complex coordinated control, thereby improving the spraying stability of the developing roller under the premise of low control accuracy.

[0029] Specifically, the turntable 100 is provided with an upper material position for the developing roller, a spraying position for the developing roller and a lower material position for the developing roller at intervals; the upper material position for the developing roller and the spraying position for the developing roller are both located above the axis, and the lower material position for the developing roller is located below the axis; the wedge portion 300 includes a wedge inclined surface 301 arranged toward the developing roller clamping portion 200, and the distance between the wedge inclined surface 301 and the developing roller clamping portion 200 increases gradually along the direction close to the axis. It can be understood that since the distance between the wedge block slope 301 and the developing roller clamping portion 200 increases in the direction close to the axis, it means that the distance between the wedge block slope 301 and the developing roller clamping portion 200 decreases in the direction away from the axis. Therefore, when the counterweight portion 400 abuts against the wedge block slope 301 and gradually moves to the bottom surface of the wedge block slope 301 (a position away from the axis), the wedge block portion 300 moves closer to the turntable 100, causing the compression spring to be compressed, and causing the pair of developing roller clamping portions 200 to move away from each other to release the developing roller.

[0030] It should also be noted that the automatic developing roller spraying equipment can also be equipped with a developing roller loading device, a developing roller spraying device and a developing roller unloading device; the developing roller loading device and the developing roller unloading device include but are not limited to common material transfer structures such as conveyor belt assemblies and manipulators, which can transfer the developing roller from one position to another; the developing roller spraying device can choose a manipulator structure with a nozzle, which can spray the developing roller, and there is no restriction in this embodiment.

[0031] Furthermore, a clamping slide 110 is provided at a position of the turntable 100 corresponding to the developing roller clamping portion 200. The developing roller clamping portion 200 includes a clamping slide 210 that is slidably connected to the clamping slide 110. A clamping disk 220 is mounted at the end of the clamping slide 210. A plurality of clamping blocks 230 are arranged around the clamping disk 220. An air bag (not shown) is embedded in the clamping block 230. An air injection assembly is provided in the clamping slide 210. The air injection assembly is used to inject air into the air bag after the clamping block 230 clamps the developing roller. It is understandable that by moving the two developing roller clamping portions 200 toward each other, the developing roller can be initially clamped from both sides. The air bag is then injected with air in cooperation with the air injection assembly, causing the air bag to expand, thereby forming a protrusion on the clamping block 230, thereby strengthening the clamping stability of the developing roller. It should also be noted that, depending on the type of developing roller, a clamping block 230 can be set to be embedded in the hollow inner wall of the developing roller, or to be sleeved on the end of the developing roller. The above-mentioned clamping block 230 and the airbag setting can achieve stable clamping and fixation of the developing roller.

[0032] As an optional embodiment, the gas injection component can use a compressor or other structures to inflate the airbag through the compressor, air pipe and other structures.

[0033] As another optional embodiment, Figures 5 to 9 As shown, the gas injection assembly includes an air cavity 211 opened in the clamping slide 210 and a piston member 510 slidingly connected to the air cavity 211, one end of the piston member 510 extends to the outside of the clamping slide 210 and is fixedly connected to the wedge block portion 300, and the other end of the piston member 510 is arranged in contact with the cavity wall of the air cavity 211; a step portion 212 is formed on the outer wall of the clamping slide 210, and a limit portion 111 is protruded at the position of the clamping slide 110 corresponding to the step portion 212; when the counterweight portion 400 moves in a direction away from the axis, a first length value is left between the step portion 212 and the limit portion 111, and the compression amount of the compression spring is a second length value; when the counterweight portion 400 moves in a direction close to the axis, the step portion 212 abuts against the limit portion 111, and the compression amount of the compression spring is zero; the second length value is greater than the first length value.

[0034] It can be understood that when the developer roller clamping portion 200 passes the developer roller upper material level from bottom to top, it means that the counterweight portion 400 moves in a direction close to the axis; at this time, the pushing block 430 moves in a direction away from the wedge portion 300; under the action of the compression spring, the wedge portion 300 pushes the piston 510 to move, so the piston 510 and the clamping slide 210 slide synchronously for a first length. After the piston 510 and the clamping slide 210 slide synchronously for the first length, refer to Figure 8, the stepped portion 212 abuts against the limiting portion 111, and the clamping slide 210 cannot slide further; therefore, under the action of the compression spring, the piston member 510 slides relative to the clamping slide 210, so that the volume of the air cavity 211 is reduced, thereby increasing the pressure of each air bag and expanding it to enhance the clamping effect on the developing roller; with this embodiment, there is no need to consider the coordinated control of the pneumatic elements and the turntable 100, thereby improving the spraying stability of the developing roller under the premise of low control accuracy.

[0035] Furthermore, the end of the air cavity 211 near the wedge block portion 300 is also connected to the synchronization channel 213, and the synchronization channel 213 is penetrated at one end of the piston member 510; a stopper 520 is protruding from the piston member 510, and an air channel 530 is opened on the piston member 510, one end of the air channel 530 is connected to the air cavity 211, and a synchronization block 214 is protruding from the synchronization channel 213 at a position corresponding to the stopper 520. When the counterweight portion 400 moves in a direction away from the axis, the piston member 510 slides a third length value relative to the clamping slide 210 until the stopper 520 abuts the synchronization block 214, and the other end of the air channel 530 is exposed outside the synchronization channel 213; after the piston member 510 slides the third length value relative to the clamping slide 210, the piston member 510 and the clamping slide 210 slide synchronously for the first length value; the sum of the first length value and the third length value is equal to the second length value.

[0036] It can be understood that when the developing roller clamping portion 200 passes through the developing roller upper material position from top to bottom, it means that the counterweight portion 400 moves in a direction away from the axis; at this time, the pushing block 430 moves in a direction close to the wedge block portion 300, causing the compression spring to be compressed, causing the wedge block portion 300 to drive the piston member 510 to move to the right (close to the turntable 100). When the piston 510 moves to the right and the stopper 520 does not contact the synchronization block 214, the piston 510 slides to the right relative to the clamping slide 210. After the piston 510 moves a third length relative to the clamping slide 210, the stopper 520 contacts the synchronization block 214, and the other end of the air channel 530 is exposed outside the synchronization channel 213, causing the airbag to contract and release the reinforced clamping of the developing roller. Then, due to the contact between the stopper 520 and the synchronization block 214, the piston 510 and the clamping slide 210 slide synchronously by the first length, causing the clamping plates 220 on both sides to move away from each other, thereby releasing the developing roller. Through the above arrangement, the initial positioning of the developing roller and then the airbag reinforcement clamping are achieved, and the airbag is first contracted and then the developing roller clamping portion 200 is removed, thereby ensuring both the clamping stability of the developing roller during loading and the efficiency of unloading the developing roller.

[0037] Furthermore, on the side of the synchronization block 214 facing the air cavity 211, an elastic block 215 is protruded from the inner wall of the synchronization channel 213; when the counterweight portion 400 moves in a direction close to the axis, the piston member 510 and the clamping slide 210 slide synchronously by a first length value, and the stop block 520 passes through the elastic block 215; after the piston member 510 and the clamping slide 210 slide synchronously by a first length value, the step portion 212 abuts against the limit portion 111, and the piston member 510 slides relative to the clamping slide 210 by a third length value, and the stop block 520 passes through the elastic block 215.

[0038] The material of the elastic block 215 includes but is not limited to rubber, plastic, etc., so that the stopper 520 can easily pass through the elastic block 215 and abut against the synchronization block 214. During this process, the elastic block 215 plays a buffering role on the stopper 520, reducing the rigid impact between the stopper 520 and the synchronization block 214, thereby improving the overall life.

[0039] Specifically, the stopper 520 includes a first inclined surface 521 and a second inclined surface 522, which are arranged in sequence in a direction away from the wedge portion 300. The angle between the first inclined surface 521 and the piston member 510 is smaller than the angle between the second inclined surface 522 and the piston member 510, and the width between the first inclined surface 521 and the piston member 510 is larger than the width between the second inclined surface 522 and the piston member 510. It will be appreciated that the smaller angle between the first inclined surface 521 and the piston member 510 means that the second inclined surface 522 is more inclined and closer to a right angle. Furthermore, the width of the second inclined surface 522 is shorter (as evidenced by the larger diameter of the connection between the piston member 510 and the second inclined surface 522 and the smaller diameter of the connection between the piston member 510 and the first inclined surface 521). This means that the stopper portion 520 has a smaller deformation at the second inclined surface 522, making it less likely to pass through the elastic block 215. Therefore, when the counterweight portion 400 moves away from the wedge block portion 300, under the action of the compression spring, the piston member 510 abuts against the elastic block 215 through the second inclined surface 522, and synchronously drives the clamping slide 210 to slide; until the step portion 212 abuts against the limiting portion 111, the block 520 passes through the elastic block 215 to make the piston member 510 slide relative to the clamping slide 210, thereby realizing the two developing roller clamping portions 200 moving toward each other, and then the airbag is expanded, which not only ensures the positioning of the developing roller, but also achieves a firm clamping of the developing roller.

[0040] Furthermore, when the counterweight portion 400 moves in a direction close to the axis, the distance between the other end of the air channel 530 and the opening of the synchronization channel 213 is less than the third length value and greater than two-thirds of the third length value, ensuring that the air channel 530 can achieve switching between sealing and communication during the relative sliding of the piston member 510 relative to the clamping slide 210.

[0041] Furthermore, a slide rail portion 120 is provided at a position on the turntable 100 corresponding to the counterweight portion 400. The counterweight portion 400 is slidably connected to the slide rail portion 120. The counterweight portion 400 is provided with a threaded hole 410, and a jackscrew is threadedly connected to the threaded hole 410. The end of the jackscrew abuts against the wall surface of the slide rail portion 120. The counterweight portion 400 specifically includes a counterweight block 420 and a pushing block 430. The threaded hole 410 is provided on the counterweight block 420. The counterweight block 420 is slidably connected to the slide rail portion 120. Thus, the friction between the counterweight block 420 and the slide rail portion 120 can be adjusted, facilitating adjustments by staff.

[0042] Furthermore, a rotating shaft 600 is coaxially connected between the two turntables 100 , and a driving assembly 700 is installed on one side of one turntable 100 , and the driving assembly 700 is used to drive the turntable 100 to rotate.

[0043] In order to facilitate understanding by those skilled in the art, the principle of the automatic spraying device for the developing roller is described by taking one embodiment of the present invention as an example: The key point of the automatic developer roller spraying device in this embodiment is to enable the turntable 100 to drive the developer roller clamping portion 200 to pass through the developer roller upper position, the developer roller spraying position, and the developer roller lower position in sequence; and the rotation direction of the turntable 100 can ensure that the developer roller clamping portion 200 passes through the developer roller upper position from bottom to top, and the developer roller upper position passes through the developer roller lower position from top to bottom; 1. When the developer roller clamping portion 200 passes the developer roller upper material level from bottom to top, the counterweight portion 400 moves in a direction close to the axis. At this time, the pushing block 430 moves in a direction away from the wedge portion 300. Under the action of the compression spring, the wedge portion 300 pushes the piston 510 to move. Because the second inclined surface 522 is still in contact with the elastic block 215, the piston 510 and the clamping slide 210 slide synchronously by the first length. When the piston 510 and the clamping slide 210 slide synchronously for a first length, Figure 8 The stepped portion 212 abuts against the limiting portion 111, and the clamping slide 210 cannot slide further. Therefore, under the action of the compression spring, the second inclined surface 522 passes through the elastic block 215, the air passage 530 is closed by the synchronization passage 213, and the piston 510 slides relative to the clamping slide 210 by a third length value, causing the volume of the air cavity 211 to decrease, thereby increasing the pressure of each air bag and causing it to expand, thereby strengthening the clamping effect on the developing roller. 2. When the developing roller clamping portion 200 passes through the developing roller spraying position, the corresponding spraying equipment can spray the developing roller. Since the counterweight portion 400 is still arranged close to the axis, it can ensure stable clamping of the developing roller; 3. When the developer roller clamping portion 200 passes the developer roller upper position from top to bottom, the counterweight portion 400 moves away from the axis. At this time, the pushing block 430 moves toward the wedge portion 300, compressing the compression spring, causing the wedge portion 300 to drive the piston 510 to move rightward (toward the turntable 100). When the piston 510 moves rightward and the stopper 520 does not contact the synchronization block 214, the piston 510 slides rightward relative to the clamping slide 210. After the piston 510 moves a third distance relative to the clamping slide 210, the stopper 520 passes the elastic block 215 and abuts against the synchronization block 214. The other end of the air passage 530 is exposed outside the synchronization channel 213, causing the air bag to contract and release the reinforced clamping of the developing roller. Then, due to the contact between the stopper 520 and the synchronization block 214 , the piston 510 and the clamping slide 210 slide synchronously by a first length value, so that the clamping plates 220 on both sides move away from each other, thereby releasing the developing roller.

[0044] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic spraying device for a developing roller, characterized in that: The invention comprises two rotating disks (100) and a plurality of developing roller clamping portions (200) arranged in pairs; the two rotating disks (100) are arranged opposite to each other and rotate synchronously, and the axes of the rotating disks (100) are arranged perpendicular to the direction of gravity; in any pair of developing roller clamping portions (200), one developing roller clamping portion (200) is arranged on one rotating disk (100), and the other developing roller clamping portion (200) is arranged on the other rotating disk (100), and the two developing roller clamping portions (200) are arranged opposite to each other for clamping the developing roller; The developing roller clamping portion (200) can slide along the axial direction of the rotating disk (100), and the developing roller clamping portion (200) is connected to a wedge portion (300); the rotating disk (100) is slidably connected to a counterweight portion (400) at a position corresponding to the wedge portion (300), and the counterweight portion (400) can slide along the radial direction of the rotating disk (100); a compression spring is installed between the wedge portion (300) and the rotating disk (100), and the compression spring causes the corresponding pair of developing roller clamping portions (200) to move toward each other; When the counterweight portion (400) moves in a direction close to the axis, the counterweight portion (400) separates from the wedge portion (300), causing the corresponding pair of developing roller clamping portions (200) to move toward each other; when the counterweight portion (400) moves in a direction away from the axis, the counterweight portion (400) abuts against the wedge portion (300), causing the corresponding pair of developing roller clamping portions (200) to move away from each other.

2. The automatic developing roller spraying device according to claim 1, characterized in that: The rotating disk (100) is provided with a developing roller upper position, a developing roller spraying position and a developing roller lower position at intervals outside the rotating disk (100); the developing roller upper position and the developing roller spraying position are both located above the axis, and the developing roller lower position is located below the axis; The wedge block portion (300) comprises a wedge block inclined surface (301) arranged toward the developing roller clamping portion (200), and the distance between the wedge block inclined surface (301) and the developing roller clamping portion (200) increases gradually along a direction close to the axis.

3. The automatic developing roller spraying device according to claim 1, characterized in that: A clamping slide (110) is provided at a position of the turntable (100) corresponding to the developing roller clamping portion (200), and the developing roller clamping portion (200) includes a clamping slide (210) slidably connected to the clamping slide (110), and a clamping disk (220) is installed at the end of the clamping slide (210), and a plurality of clamping blocks (230) are arranged around the clamping disk (220); an air bag is embedded in the clamping block (230), and an air injection component is provided in the clamping slide (210), and the air injection component is used to inject air into the air bag after the clamping block (230) clamps the developing roller.

4. The automatic developing roller spraying device according to claim 3, characterized in that: The gas injection assembly includes an air cavity (211) provided in the clamping slide (210) and a piston member (510) slidably connected to the air cavity (211), one end of the piston member (510) extending to the outside of the clamping slide (210) and fixedly connected to the wedge block portion (300), and the other end of the piston member (510) is arranged in contact with the cavity wall of the air cavity (211); The outer wall of the clamping slide (210) is formed with a stepped portion (212), and the clamping slide seat (110) is provided with a protruding limiting portion (111) at a position corresponding to the stepped portion (212); When the counterweight portion (400) moves in a direction away from the axis, a first length value is left between the step portion (212) and the limiting portion (111), and the compression amount of the compression spring is a second length value; when the counterweight portion (400) moves in a direction close to the axis, the step portion (212) abuts against the limiting portion (111), and the compression amount of the compression spring is zero; The second length value is greater than the first length value.

5. The automatic spraying device for developing roller according to claim 4, characterized in that: One end of the air cavity (211) close to the wedge block portion (300) is also connected to a synchronization channel (213), and one end of the piston member (510) is penetrated by the synchronization channel (213); A stopper (520) is protruding from the piston member (510), and an air passage (530) is provided on the piston member (510), one end of the air passage (530) is communicated with the air cavity (211), and a synchronization block (214) is protruding from the synchronization channel (213) at a position corresponding to the stopper (520); When the counterweight portion (400) moves in a direction away from the axis, the piston member (510) slides a third length value relative to the clamping slide (210) until the stop block (520) abuts against the synchronization block (214), and the other end of the air channel (530) is exposed outside the synchronization channel (213); after the piston member (510) slides the third length value relative to the clamping slide (210), the piston member (510) and the clamping slide (210) slide synchronously for the first length value; The sum of the first length value and the third length value is equal to the second length value.

6. The automatic spraying device for developing roller according to claim 5, characterized in that: On the side of the synchronization block (214) facing the air cavity (211), an elastic block (215) is protruded on the inner wall of the synchronization channel (213); When the counterweight portion (400) moves in a direction close to the axis, the piston member (510) and the clamping slide (210) slide synchronously by the first length value, and the stop block (520) passes through the elastic block (215); after the piston member (510) and the clamping slide (210) slide synchronously by the first length value, the stepped portion (212) abuts against the limiting portion (111), the piston member (510) slides relative to the clamping slide (210) by a third length value, and the stop block (520) passes through the elastic block (215).

7. The automatic developing roller spraying device according to claim 6, characterized in that: The stopper (520) includes a first inclined surface (521) and a second inclined surface (522) which are sequentially arranged in a direction away from the wedge block portion (300), wherein an angle between the first inclined surface (521) and the piston member (510) is smaller than an angle between the second inclined surface (522) and the piston member (510), and a width between the first inclined surface (521) and the piston member (510) is larger than a width between the second inclined surface (522) and the piston member (510).

8. The automatic developing roller spraying device according to claim 5, characterized in that: When the counterweight portion (400) moves in a direction close to the axis, the distance between the other end of the airway (530) and the opening of the synchronization channel (213) is less than the third length value and greater than two-thirds of the third length value.

9. The automatic spraying device for developing roller according to claim 3, characterized in that: The turntable (100) is provided with a slide rail portion (120) at a position corresponding to the counterweight portion (400), the counterweight portion (400) is slidably connected to the slide rail portion (120), and the counterweight portion (400) is provided with a threaded hole (410), the threaded hole (410) is threadedly connected with a top screw, and the end of the top screw abuts against the wall surface of the slide rail portion (120).

10. The automatic spraying device for developing roller according to claim 3, characterized in that: A rotating shaft (600) is coaxially connected between the two turntables (100), and a driving assembly (700) is installed on one side of one turntable (100), and the driving assembly (700) is used to drive the turntable (100) to rotate.

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