A selenium drum counting gear reset device and a reset method thereof

Abstract

This invention provides a toner cartridge counting gear reset device and its reset method. The device includes a mounting base, on which a reset detection component, a counting gear reset component, and a toner cartridge limiting loading platform are mounted. The reset detection component includes a first detection cylinder, a second detection cylinder, a connecting piece, and a probe rod. The probe rod has a probe end that engages with a D-shaped opening. The second detection cylinder has a stroke sensor. The counting gear reset component includes a reset drive cylinder, a reset push rod that slides axially driven by the cylinder, a rotation drive sleeve fitted over the push rod, a rotation reset motor, and a counting gear drive head at the end of the push rod. The method steps are as follows: the first detection cylinder extends its rod, the second detection cylinder pushes the rod so that its end engages with the D-shaped opening, the stroke sensor determines whether a reset has occurred; if not, the rod retracts; the reset cylinder pushes the drive head to mesh with the gear, the rotation motor drives the reset rod to rotate and reset via the rotation sleeve; after the drive head retracts, it re-enters for verification. This invention relates to the field of toner cartridge counting gear reset technology.

Description

Technical Field

[0001] This invention relates to the field of toner cartridge counting gear reset technology, and in particular to a toner cartridge counting gear reset device and its reset method. Background Technology

[0002] As a core consumable in laser printing equipment, the toner cartridge's counting gear is used to record the number of pages printed or to identify whether the cartridge is a newly loaded consumable. During the production testing phase, some toner cartridges need to be selected for printing tests. After the tests are completed, the indicator position of their counting gear will deviate from the initial factory state. Therefore, the counting gear must be reset before packaging and shipping to restore the toner cartridge to a state where it can be recognized by the printer as a new consumable.

[0003] Regarding the issue of resetting the counting gears, the industry initially relied mainly on manual operation to reset them, which was inefficient and difficult to guarantee consistent reset times. Later, a technical approach was developed that added an automatic reset mechanism inside the toner cartridge. This involved incorporating elastic elements, reset gear rings, and guide ramps inside the cartridge end cover, allowing the counting gears to be reset by applying an operation from the external end cover, eliminating the need to disassemble the cartridge. However, these improvements still limited the framework of operating each individual cartridge individually. Furthermore, as the reset mechanism became increasingly integrated into the cartridge, the structural complexity of the cartridge itself continued to increase, significantly complicating disassembly, maintenance, and troubleshooting. This was particularly challenging in high-volume production testing scenarios, where manual or semi-automatic operation was no longer sufficient to meet production line cycle time requirements.

[0004] Therefore, the inventors urgently need a toner cartridge counting gear reset device that can achieve batch automated reset operations without relying on the complex mechanical structure inside the toner cartridge to solve the above problems. Summary of the Invention

[0005] To address the shortcomings of the prior art, this invention provides a toner cartridge counting gear reset device and its reset method, aiming to solve the technical problem that the toner cartridge counting gear reset operation relies on manual labor or complex mechanical structures added inside the toner cartridge, thus failing to meet the needs of batch automated reset and the simplicity and ease of maintenance of the toner cartridge's internal structure.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a toner cartridge counting gear reset device, comprising an installation platform, wherein the installation platform is provided with a reset detection component, a counting gear reset component, and a toner cartridge limiting loading platform; the reset detection component includes a first detection cylinder, a second detection cylinder, a connector connecting the output end of the first detection cylinder and the second detection cylinder, and a probe rod passing through the connector and connected to the output end of the second detection cylinder; the end of the probe rod is provided with a detection end for engaging with the D-shaped opening of the toner cartridge gear end cover; the second detection cylinder is provided with a stroke sensor; the counting gear reset component includes a reset drive cylinder, a reset push rod driven by the reset drive cylinder to slide axially, a rotation drive sleeve sleeved on the outer periphery of the reset push rod, a rotary reset motor driving the rotation drive sleeve to rotate, and a counting gear drive head provided at the end of the reset push rod.

[0007] Based on the above, the beneficial effects of a toner cartridge counting gear reset device and its reset method are that they solve the technical problem in the prior art where the toner cartridge counting gear reset operation relies on manual labor or on complex mechanical structures added inside the toner cartridge, thus failing to meet the needs of batch automated reset and the simplicity and ease of maintenance of the toner cartridge's internal structure; mainly reflected in: 1. This invention, by setting up an installation platform and integrating a reset detection component, a counting gear reset component, and a toner cartridge limiting loading platform on the installation platform, enables multiple toner cartridges to be loaded sequentially or in batches and automatically complete the detection and reset operations, eliminating the need for manual rotation of the counting gears one by one. This solves the problems of low efficiency and poor consistency caused by manual operation in the prior art. 2. The present invention uses a two-stage drive structure consisting of a first detection cylinder and a second detection cylinder connected by a connector in the reset detection assembly. This allows the detection end of the probe rod to be fed to the front of the D-shaped opening of the toner cartridge gear end cover as a whole, and then precisely embedded laterally into the D-shaped opening. With the stroke sensor set on the second detection cylinder providing real-time feedback of displacement data, the invention achieves automated and accurate judgment of the reset state of the counting gear, avoiding the uncertainty of manual visual inspection or manual probing, and ensuring the reliability of each reset operation. 3. The present invention uses the reset drive cylinder in the counting gear reset assembly to push the reset push rod to slide axially along the inside of the rotating drive sleeve, so that the counting gear drive head and the counting gear are accurately engaged. Then, the rotating reset motor drives the rotating drive sleeve to drive the reset push rod and the counting gear drive head to rotate synchronously by a preset stroke, so as to simulate the reverse action of the normal counting process of the counting gear to complete the reset. Thus, the automatic reset operation is achieved without changing the original internal structure of the toner cartridge, maintaining the simplicity of the internal structure of the toner cartridge and the convenience of maintenance. 4. This invention integrates the reset detection component and the counting gear reset component on the same mounting platform and they work together to perform an automated process of detection, reset and re-inspection. This allows the tested toner cartridges to complete batch automatic reset processing without the need to add any additional reset mechanism inside them. This solves the technical contradiction in the prior art where the addition of a reset structure inside the toner cartridge leads to structural complexity and makes it difficult to balance batch operation efficiency.

[0008] Furthermore, the connector is an integrally formed bent structure, and the connector includes a first extension section and a second extension section that are parallel to each other, and a transverse transition section connecting the two. The first extension section is fixed to the output end of the first detection cylinder, the second detection cylinder is fixed to the inner side wall of the first extension section, and the detection rod is disposed through the transverse transition section and the second extension section.

[0009] Based on the above, the beneficial effects of the bending structure are that it eliminates the need for additional assembly connections between the first extension section, the second extension section, and the transverse transition section to form a stable spatial reversing support frame, thereby improving the overall rigidity and motion transmission accuracy of the two-stage cylinder drive conversion structure and avoiding loosening or displacement deviation that may occur in the long-term reciprocating motion of the split connectors; the beneficial effect of the first extension section is that it simultaneously supports the axial drive connection of the output end of the first detection cylinder and the fixed installation of the second detection cylinder, so that the second detection cylinder can move synchronously with the output end of the first detection cylinder, thereby transmitting the axial extension action of the first detection cylinder to the subsequent detection components without loss; The beneficial effect of the second extension section is to provide a precise guide channel along its own axis for the probe rod, and at the same time, to maintain the parallel position relationship with the first extension section through the connection with the transverse transition section, ensuring the spatial positioning consistency of the probe rod end during the two-stage drive conversion process; the beneficial effect of the transverse transition section is to establish a rigid connection between the first extension section and the second extension section and form a preset spatial misalignment distance, so that the axial drive direction of the first detection cylinder is connected with the transverse sliding direction of the second detection cylinder and the probe rod, providing a structural basis for the composite motion trajectory of the probe rod end first being axially fed and then laterally embedded into the D-shaped opening of the toner cartridge gear end cover.

[0010] Furthermore, the end of the probe is provided with a first fastening head and a probe D-shaped rod. The probe is fixedly connected to the probe D-shaped rod through the first fastening head, and the probe D-shaped rod constitutes the probe end.

[0011] Based on the above, the beneficial effect of the first fastening head is that it detachably and securely connects the end of the probe rod to the probe D-shaped rod, allowing the probe D-shaped rod to be replaced and adapted according to the actual specifications of the D-shaped opening of the toner cartridge gear end cover. Simultaneously, it ensures the connection rigidity between the probe rod and the probe D-shaped rod when transmitting axial thrust and lateral sliding guide force, preventing loosening or coaxiality misalignment during long-term reciprocating insertion. The beneficial effect of the probe D-shaped rod is that it is embedded inside the D-shaped opening with a cross-sectional shape adapted to the D-shaped opening of the toner cartridge gear end cover. Changes in the insertion depth of the probe D-shaped rod reflect different reset states of the counting gear, thereby, in conjunction with the stroke sensor, converting the reset state judgment into quantifiable displacement data, achieving accurate detection and reliable determination of the counting gear reset state.

[0012] Furthermore, the cross-sectional shape of the probe rod that mates with the transverse transition section and the interior of the second extension section is polygonal.

[0013] Based on the above, the beneficial effect of the polygonal mating structure is that by utilizing the non-circular cross-sectional mating relationship between the outer periphery of the probe rod and the transverse transition section and the interior of the second extension section, the circumferential rotational freedom of the probe rod is restricted during the transverse sliding process along the guide channel. This ensures that the probe D-shaped rod at the end of the probe rod always maintains a preset angular posture before being inserted into the D-shaped opening of the toner cartridge gear end cover. This ensures that the D-shaped cross-sectional direction of the probe D-shaped rod is precisely consistent with the opening direction of the D-shaped opening, thereby improving the success rate and detection accuracy of the insertion action and avoiding insertion failure or detection misjudgment caused by accidental rotation of the probe rod during the sliding process.

[0014] Furthermore, the cross-sectional shape of the reset push rod that mates with the inside of the rotation drive sleeve is polygonal.

[0015] Based on the above, the beneficial effect of the polygonal mating structure is that by utilizing the non-circular cross-sectional mating relationship between the outer periphery of the reset push rod and the interior of the rotary drive sleeve, when the rotary drive sleeve is driven to rotate by the rotary reset motor, the circumferential torque is smoothly transmitted to the reset push rod. At the same time, the reset push rod is allowed to slide freely along the axial direction inside the rotary drive sleeve under the push of the reset drive cylinder. Thus, without affecting the axial feed action, the functions of circumferential rotation drive and axial sliding guide are integrated. This ensures that the counting gear drive head can accurately perform the reset rotation at a preset angle and torque after meshing with the counting gear, avoiding reset failure or damage to the counting gear teeth caused by relative circumferential slippage or axial jamming between the reset push rod and the rotary drive sleeve.

[0016] Furthermore, a second fastening head is provided at the end of the reset push rod, and the reset push rod is fixedly connected to the counting gear drive head through the second fastening head.

[0017] Based on the above, the beneficial effect of the second fastening head is that it detachably and fixedly connects the end of the reset push rod to the counting gear drive head, so that the counting gear drive head can be replaced and adapted according to the actual tooth profile specifications of the drum counting gear. At the same time, it ensures the connection rigidity when the reset push rod transmits torque with the counting gear drive head during the circumferential rotation reset process, and avoids reset angle deviation or reset action failure caused by loose connection.

[0018] Furthermore, the reset detection assembly also includes a detection mounting bracket, on which the first detection cylinder is mounted. The counting gear reset assembly also includes a reset mounting bracket, on which the reset drive cylinder and the rotary reset motor are both mounted. The reset mounting bracket has a limiting bearing seat corresponding to both ends of the rotary drive sleeve on the side near the rotary drive sleeve. Both ends of the rotary drive sleeve are rotatably fitted into the limiting bearing seat through bearings.

[0019] Based on the above, the beneficial effects of the detection mounting bracket are that it supports and fixes the first detection cylinder at a preset height position above the mounting platform, ensuring that the output axis of the first detection cylinder is parallel to the plane of the D-shaped opening of the gear end cover of the toner cartridge on the toner cartridge limiting loading platform, providing a stable reference positioning for the axial extension action of the probe rod, and ensuring that the probe end can accurately reach the position in front of the D-shaped opening of the toner cartridge gear end cover; the beneficial effect of the reset mounting bracket is that it integrates the reset drive cylinder and the rotary reset motor on the same support structure, ensuring that the output axis of the reset drive cylinder is parallel to the axial center line of the rotary drive sleeve, while providing a stable reference positioning for the axial extension action of the probe rod, ensuring that the probe end can accurately reach the position in front of the D-shaped opening of the toner cartridge gear end cover; the beneficial effect of the reset mounting bracket is that it integrates the reset drive cylinder and the rotary reset motor on the same support structure, ensuring that the output axis of the reset drive cylinder is parallel to the axial center line of the rotary drive sleeve, and simultaneously providing a stable reference positioning for the axial extension action of the probe rod, ensuring that the probe end can accurately reach the position in front of the D-shaped opening of the toner cartridge gear end cover. A stable transmission center distance between the passive meshing wheel and the rotating wheel ensures the coordination accuracy of the axial feed action and the circumferential rotation action in space. The beneficial effect of the limit bearing housing is that it is set at both ends of the rotating drive sleeve respectively, and the two ends of the rotating drive sleeve are rotatably supported on the reset mounting bracket through the bearing. This allows the rotating drive sleeve to maintain a stable axis of rotation when it is subjected to the circumferential torque driven by the rotating reset motor and the radial load generated by the axial sliding of the reset push rod. This reduces the radial runout and axial movement of the rotating drive sleeve during high-speed rotation and frequent start-stop processes, thereby improving the smoothness of the resetting action of the counting gear drive head and the counting gear and the position repeatability accuracy.

[0020] Furthermore, the counting gear reset assembly also includes a passive engagement wheel sleeved on the outer periphery of the rotary drive sleeve and a rotary push block disposed at the output end of the reset drive cylinder. The reset push rod is rotatably engaged with the rotary push block, and the rotary reset motor is connected to the passive engagement wheel via a belt.

[0021] Based on the above, the beneficial effects of the passive engagement wheel are that it is sleeved and fixed on the outer circumference of the rotary drive sleeve, receives the driving force transmitted by the rotary reset motor through the belt, and drives the rotary drive sleeve to rotate synchronously. It converts the output torque of the rotary reset motor into the circumferential reset driving force of the rotary drive sleeve through the belt transmission path, achieving a smooth transmission of power from the drive source to the reset execution end. The beneficial effects of the rotary push block are that it is fixedly set at the output end of the reset drive cylinder, and the reset push rod rotates and engages with the rotary push block. When the reset drive cylinder pushes the rotary push block forward, it drives the reset push rod to advance axially synchronously, while allowing the reset push rod to move freely within the rotary push block. The rotation allows for simultaneous axial thrust transmission and preservation of circumferential rotational freedom at a single connection node, ensuring that the counting gear drive head can achieve sufficient engagement depth and smoothly perform the rotary reset action after engaging the counting gear. The belt connects the output end of the rotary reset motor to the passive engagement pulley, transmitting the rotation of the rotary reset motor to the passive engagement pulley in a flexible transmission manner. While allowing for a certain installation position deviation between the rotary reset motor and the rotary drive sleeve, it also has an overload slippage protection function, preventing motor overload damage or counting gear tooth damage caused by accidental jamming during the counting gear reset process.

[0022] Furthermore, the present invention also provides a reset method for a toner drum counting gear reset device, characterized by comprising the following steps: S1: Start the first detection cylinder to drive the probe rod to extend axially, so that the probe end reaches the front of the D-type opening of the selenium drum counting gear; S2: Activate the second detection cylinder to push the probe rod to slide along the guide of the connector, so that the probe end is embedded in the D-shaped opening; S3: Real-time feedback of displacement data via stroke sensor: When the displacement reaches the preset threshold, it is determined that the reset has been completed; when the displacement does not reach the threshold and there is no change within the preset time, it is determined that the reset is required, and the probe rod is driven to return to the initial position. S4: Start the reset drive cylinder to drive the reset push rod to slide axially, so that the counting gear drive head meshes with the counting gear; S5: Start the rotary reset motor to drive the rotating drive sleeve to rotate the reset push rod and the counting gear drive head to rotate the preset stroke and then stop; S6: Reset the drive cylinder to drive the counting gear drive head back, and repeat S1 to S3 to verify the reset result.

[0023] Based on the above, the beneficial effect of step S1 is that by driving the probe rod axially outward through the first detection cylinder, the probe end of the probe rod quickly approaches and positions itself in front of the D-shaped opening of the toner cartridge counting gear, completing the large-stroke coarse positioning stage of the detection action and establishing a spatial position basis for the subsequent precise embedding of the probe end into the D-shaped opening; the beneficial effect of step S2 is that by pushing the probe rod laterally along the internal guide channel of the connector through the second detection cylinder, the probe end is precisely embedded into the D-shaped opening from the front, completing the short-stroke fine embedding stage of the detection action, and achieving a balance between large-stroke rapid feeding and small-stroke precise alignment by utilizing the division of labor and cooperation of the two-stage drive; the beneficial effect of step S3 is that by using the stroke sensor to provide real-time feedback of the displacement data at the output end of the second detection cylinder, and using whether the displacement reaches a preset threshold and whether the displacement changes within a preset time as the judgment condition, the reset state of the counting gear is transformed into a quantifiable detection criterion, realizing the automated and accurate judgment of whether the counting gear has completed the reset, and deciding whether to start the subsequent reset operation based on the judgment result; the beneficial effect of step S4 is that... The reset drive cylinder drives the reset push rod to slide axially along the inside of the rotating drive sleeve, causing the counting gear drive head to move forward smoothly and mesh with the middle of the counting gear. This provides a reliable power transmission interface for subsequent circumferential reset rotation. At the same time, the pneumatic drive characteristics of the reset drive cylinder enable flexible feeding of the counting gear drive head, avoiding damage to the counting gear teeth caused by rigid impact. The beneficial effect of step S5 is that the rotating reset motor drives the rotating drive sleeve to rotate, thereby driving the reset push rod and the counting gear drive head to rotate synchronously by a preset stroke. The counting gear is reset with a controllable angle and torque, restoring the counting gear to the initial counting position and achieving precise execution of the reset operation. The beneficial effect of step S6 is that after the reset drive cylinder drives the counting gear drive head to retract and disengage, the detection process of steps S1 to S3 is repeated. The displacement feedback data of the stroke sensor is obtained again to verify whether the reset operation is successful, forming a closed-loop automated process of detection, reset, and re-inspection, ensuring that each toner cartridge has completed the counting gear reset before leaving the device.

[0024] To make the above features of the present invention and the objectives to be achieved clearer, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0025] Figure 1 : This is a perspective view of the present invention; Figure 2 : This is a perspective view of the reset detection component of the present invention; Figure 3 : This is a perspective view of the counting gear reset assembly of the present invention; Figure 4 : This is a flowchart of the reset method of the present invention.

[0026] Explanation of reference numerals: 1- Mounting platform, 2- Reset detection assembly, 21- Detection mounting bracket, 211- First detection cylinder, 212- Connector, 2121- First extension section, 2122- Second extension section, 2123- Lateral transition section, 213- Second detection cylinder, 2131- Stroke sensor, 214- Detector rod, 2141- First fastening head, 2142- Detection D-type rod, 3- Counting gear reset assembly, 31- Reset mounting bracket, 311- Limit bearing seat, 32- Rotary reset motor, 33- Reset drive cylinder, 34- Rotary push block, 35- Reset push rod, 36- Rotary drive sleeve, 37- Passive meshing wheel, 38- Second fastening head, 39- Counting gear drive head, 391- I-shaped rib, 4- Toner cartridge limit loading platform. Detailed Implementation

[0027] join Figures 1-4 As shown, This invention discloses a toner cartridge counting gear reset device, including an installation platform 1. The installation platform 1 is equipped with a reset detection component 2, a counting gear reset component 3, and a toner cartridge limiting loading platform 4. The reset detection component 2 includes a first detection cylinder 211, a second detection cylinder 213, a connector 212 connecting the output end of the first detection cylinder 211 and the second detection cylinder 213, and a probe rod 214 passing through the connector 212 and connected to the output end of the second detection cylinder 213. The probe rod 214 has a probe end for engaging with the D-shaped opening of the toner cartridge gear end cover. The second detection cylinder 213 is equipped with a stroke sensor 2131. The counting gear reset component 3 includes a reset drive cylinder 33, a reset push rod 35 driven by the reset drive cylinder 33 to slide axially, a rotation drive sleeve 36 sleeved on the outer periphery of the reset push rod 35, a rotary reset motor 32 driving the rotation drive sleeve 36 to rotate, and a counting gear drive head 39 located at the end of the reset push rod 35.

[0028] In this embodiment, the connector 212 is an integrally formed bent structure. The connector 212 includes a first extension section 2121 and a second extension section 2122 that are parallel to each other, and a transverse transition section 2123 connecting the two. The first extension section 2121 is fixed to the output end of the first detection cylinder 211, and the second detection cylinder 213 is fixed to the inner sidewall of the first extension section 2121. The probe rod 214 is disposed through the transverse transition section 2123 and the second extension section 2122.

[0029] In this embodiment, preferably, the bends of the transverse transition section 2123 and the first extension section 2121 and the second extension section 2122 are all provided with rounded transition chamfers (not shown in the figure) to avoid stress concentration cracks during long-term reciprocating stress. The first extension section 2121 and the output end of the first detection cylinder 211 are connected by screws to achieve end face fastening. The second detection cylinder 213 is fixed in the threaded hole on the inner side wall of the first extension section 2121 by bolts.

[0030] In this embodiment, the end of the probe 214 is provided with a first fastening head 2141 and a probe D-shaped rod 2142. The probe 214 is fixedly connected to the probe D-shaped rod 2142 through the first fastening head 2141, and the probe D-shaped rod 2142 constitutes the probe end.

[0031] In this embodiment, the first fastening head 2141 and the probe rod 214 are connected by a threaded engagement. The tail end of the probe D-type rod 2142 is provided with an external thread that screws into the corresponding threaded hole of the first fastening head 2141. This allows the probe D-type rod 2142 to be replaced and adapted according to the actual specifications of the D-type opening of the toner cartridge gear end cover. Furthermore, after the probe D-type rod 2142 is worn, it can be replaced individually without replacing the entire probe rod 214.

[0032] In this embodiment, the cross-sectional shape of the probe rod 214 that mates with the transverse transition section 2123 and the second extension section 2122 is polygonal.

[0033] In this embodiment, the polygonal cross-sectional shape is specifically a quadrilateral. The transverse transition section 2123 and the second extension section 2122 are provided with quadrilateral through holes that are adapted to the outer quadrilateral shape of the probe rod 214. This prevents the probe rod 214 from rotating circumferentially relative to the second extension section 2122 during the sliding process, thereby ensuring that the D-shaped cross-sectional direction of the probe D-shaped rod 2142 remains consistent with the opening direction of the D-shaped opening of the toner cartridge gear end cover throughout the transverse embedding action.

[0034] In this embodiment, the cross-sectional shape of the reset push rod 35 and the inner part of the rotation drive sleeve 36 is polygonal.

[0035] In this embodiment, the polygonal cross-sectional shape is specifically a quadrilateral. The rotating drive sleeve 36 has a quadrilateral through hole that matches the outer quadrilateral shape of the reset push rod 35. The reset push rod 35 can slide freely axially within the rotating drive sleeve 36. When the rotating drive sleeve 36 rotates, the circumferential torque is transmitted to the reset push rod 35 through the hexagonal mating surface, thus preventing circumferential relative rotation between the reset push rod 35 and the rotating drive sleeve 36.

[0036] In this embodiment, a second fastening head 38 is provided at the end of the reset push rod 35, and the reset push rod 35 is fixedly connected to the counting gear drive head 39 through the second fastening head 38.

[0037] In this embodiment, the second fastening head 38 and the reset push rod 35 are connected by a threaded connection. The tail end of the counting gear drive head 39 is provided with an external thread that screws into the corresponding threaded hole of the second fastening head 38, so that the counting gear drive head 39 can be replaced and adapted according to the actual tooth profile specifications of the toner cartridge counting gear. The end face of the counting gear drive head 39 is provided with a straight rib 391, which is used to form an embedded engagement with the corresponding groove in the middle of the toner cartridge counting gear, ensuring that there is no relative slippage between the drive head and the counting gear during the rotation reset process.

[0038] In this embodiment, the reset detection assembly 2 further includes a detection mounting bracket 21, on which the first detection cylinder 211 is mounted. The counting gear reset assembly 3 further includes a reset mounting bracket 31, on which the reset drive cylinder 33 and the rotary reset motor 32 are both mounted. The reset mounting bracket 31 has a limiting bearing seat 311 on the side near the rotary drive sleeve 36, corresponding to the two ends of the rotary drive sleeve 36. The two ends of the rotary drive sleeve 36 are rotatably fitted into the limiting bearing seat 311 by bearings.

[0039] In this embodiment, the detection mounting frame 21 is fixed to the upper surface of the mounting platform 1 by bolts. An elongated hole is provided on the vertical plate of the detection mounting frame 21. The cylinder body of the first detection cylinder 211 is fixed to the detection mounting frame 21 by bolts passing through the elongated hole. The elongated hole allows the first detection cylinder 211 to be finely adjusted in the height direction to ensure that the output axis of the first detection cylinder 211 is parallel to the plane where the gear end cover D-shaped opening of the toner cartridge is located on the toner cartridge limiting loading platform 4.

[0040] In this embodiment, the counting gear reset assembly 3 further includes a passive engagement wheel 37 sleeved on the outer periphery of the rotating drive sleeve 36 and a rotating push block 34 disposed at the output end of the reset drive cylinder 33. The reset push rod 35 is rotatably engaged on the rotating push block 34, and the rotating reset motor 32 is connected to the passive engagement wheel 37 via a belt.

[0041] In this embodiment, the belt is a synchronous toothed belt. The outer periphery of the passive engagement pulley 37 and the active pulley sleeved on the output shaft of the rotary reset motor 32 are both provided with teeth that are adapted to the synchronous toothed belt to prevent the reset angle error caused by belt slippage during transmission. The rotary reset motor 32 is a stepper motor. The control system controls the rotation angle of the rotary reset motor 32 by sending pulse numbers. The number of pulses corresponding to the preset stroke is pre-calibrated and stored in the control system during the equipment debugging stage, so that the angle of rotation of the counting gear driven head 39 each time it moves the counting gear is consistent with the rotation angle required for the counting gear to return from the test position to the factory initial position.

[0042] In this embodiment, the stroke sensor 2131 is disposed at the output end of the second detection cylinder 213. When the second detection cylinder 213 pushes the probe rod 214 to slide axially along the guide hole inside the transverse transition section 2123 and the second extension section 2122, the displacement value fed back by the stroke sensor 2131 in real time is the axial sliding distance of the probe rod 214 relative to the connector 212. The maximum working stroke of the second detection cylinder 213 is greater than the theoretical insertion depth required for the probe D-type rod 2142 to be fully embedded in the D-type opening of the toner cartridge gear end cover. The preset threshold in the control system is based on the fact that the probe D-type rod 2142 can be fully embedded in the D-type opening of the toner cartridge gear end cover in the reset state. The required extension length of the output end of the second detection cylinder 213 during the die-cutting process is pre-calibrated. When the counting gear has been reset, there are no obstructions inside the D-shaped die, and the detection D-shaped rod 2142 can be fully inserted. The output end of the second detection cylinder 213 can smoothly push the detection rod 214 to the position where the displacement value reaches the preset threshold. When the counting gear has not been reset, the D-shaped die is blocked, and the detection D-shaped rod 2142 can only be partially inserted before being blocked. The output end of the second detection cylinder 213 cannot continue to extend, and the displacement value fed back by the stroke sensor 2131 is less than the preset threshold and does not change within a preset time. Based on this, the control system determines that a reset operation needs to be performed.

[0043] In this embodiment, preferably, the bearing surface of the drum limiting loading platform 4 is provided with a contour positioning groove that matches the bottom shape of the drum. The contour positioning groove is provided with a vacuum adsorption hole, which is connected to an external vacuum generator through a pipeline. After the drum is placed in the contour positioning groove, the vacuum generator is activated, and the drum is adsorbed and fixed on the drum limiting loading platform 4 by negative pressure, so as to prevent the drum from shifting position during the transverse embedding of the probe rod 214 or the rotation and reset of the counting gear drive head 39.

[0044] In this embodiment, preferably, the reset mounting bracket 31 is also provided with a through-beam photoelectric sensor, the transmitting end and the receiving end of which are located on both sides of the initial position of the axial sliding path of the reset push rod 35. A baffle is fixed on the reset push rod 35. When the reset push rod 35 retracts to the initial position, the baffle blocks the light beam of the photoelectric sensor. The photoelectric sensor sends a confirmation signal to the control system that the reset push rod 35 has returned to its original position. The control system prohibits the start of the next working cycle before receiving the confirmation signal, so as to ensure that each detection and reset action is performed from the safe initial state.

[0045] In this embodiment, preferably, the installation platform 1 is also equipped with a start button and an emergency stop button. The start button is used to start the automatic operation cycle, and the emergency stop button is used to cut off all power sources of the device in an emergency to ensure the safety of the operator.

[0046] In this embodiment, the present invention also discloses a reset method for a toner cartridge counting gear reset device, characterized by comprising the following steps: S1: Start the first detection cylinder 211 to drive the detection rod 214 to extend axially, so that the detection end reaches the front of the D-type opening of the selenium drum counting gear; S2: Activate the second detection cylinder 213 to push the detection rod 214 to slide along the connector 212, so that the detection end is embedded in the D-shaped opening; S3: Real-time feedback of displacement data via stroke sensor 2131: When the displacement reaches a preset threshold, it is determined that the system has been reset; when the displacement does not reach the threshold and there is no change within a preset time, it is determined that the system needs to be reset and the probe rod 214 is driven to retract to the initial position. S4: Start the reset drive cylinder 33 to drive the reset push rod 35 to slide axially, so that the counting gear drive head 39 meshes with the counting gear; S5: Start the rotary reset motor 32 to drive the rotary drive sleeve 36 to rotate the reset push rod 35 and the counting gear drive head 39 to rotate a preset stroke and then stop; S6: Reset drive cylinder 33 drives counting gear drive head 39 to retract, repeat S1 to S3 to verify the reset result.

[0047] In summary, the specific embodiments of the present invention are as follows: After the toner cartridge to be reset is placed in the toner cartridge limiting loading platform 4 on the mounting base 1 and the limiting and fixing are completed, the first detection cylinder 211 in the reset detection assembly 2 is activated. The output end of the first detection cylinder 211 drives the connector 212 and the second detection cylinder 213 and the probe rod 214 disposed on the connector 212 to extend axially as a whole, so that the detection end of the probe rod 214 moves to the corresponding position in front of the D-shaped opening of the toner cartridge gear end cover. Then the second detection cylinder 213 is activated, pushing the probe rod 214 to slide laterally along the guide channel inside the transverse transition section 2123 and the second extension section 2122 of the connector 212, so that the first fastening head 2141 and the detection D-shaped rod 2142 at the end of the probe rod 214 form a single unit. The probe tip is precisely fed towards the D-shaped opening and embedded into it. At this time, the stroke sensor 2131 on the second detection cylinder 213 provides real-time feedback on the displacement data of the output end of the second detection cylinder 213. If the displacement value reaches the preset threshold, it is determined that the counting gear has been reset. The second detection cylinder 213 and the first detection cylinder 211 then drive the probe rod 214 back to the initial position along the original path, and the toner cartridge can enter the next process. If the displacement value does not reach the preset threshold and does not change within the preset time, it is determined that the counting gear has not been reset. The stroke sensor 2131 sends a signal to the second detection cylinder 213 and the first detection cylinder 211 to drive the probe rod 214 back to the initial position, and the device enters the reset procedure. When a reset operation is required, the reset drive cylinder 33 in the counting gear reset assembly 3 is activated, and the rotating push block 34 located at the output end of the reset drive cylinder 33 is pushed forward. The rotating push block 34 drives the reset push rod 35, which rotates with it, to slide axially along the inside of the rotating drive sleeve 36. The two ends of the rotating drive sleeve 36 are rotatably fitted into the limit bearing seats 311 on the reset mounting bracket 31 through bearings. During the sliding process, the reset push rod 35 is circumferentially limited due to the polygonal cross-section matching structure between its outer periphery and the inside of the rotating drive sleeve 36. The second fastening head 38 at the end and the counting teeth fixedly connected to the second fastening head 38 are also limited. The wheel drive head 39 extends smoothly until the counting gear drive head 39 accurately meshes with the middle of the toner cartridge counting gear; then the rotary reset motor 32 starts, and drives the passive meshing wheel 37, which is sleeved on the outer periphery of the rotary drive sleeve 36, to rotate via a belt. The passive meshing wheel 37 drives the rotary drive sleeve 36 to rotate within the two limit bearing seats 311. The rotary drive sleeve 36 transmits circumferential torque to the reset push rod 35 through a polygonal mating structure. The reset push rod 35 rotates freely within the rotary push block 34 and drives the counting gear drive head 39 to rotate synchronously for a preset stroke. After completing the rotation and reset operation of the counting gear, the rotary reset motor 32 stops running. After the reset action is completed, the reset drive cylinder 33 drives the rotating push block 34 and the reset push rod 35 to retract, causing the counting gear drive head 39 to disengage from the counting gear. At this time, the device restarts the reset detection component 2, repeating the aforementioned detection action of the first detection cylinder 211 driving the probe rod 214 to extend axially and the second detection cylinder 213 pushing the probe rod 214 to insert laterally into the D-shaped opening. The displacement data fed back by the stroke sensor 2131 verifies whether the counting gear has been successfully reset to the target position. After confirming that the reset is successful, each execution component returns to the initial standby state, waiting for the next drum loading detection and reset cycle.

[0048] The above description is merely the optimal embodiment of the present invention and is not intended to limit the present invention. Any modifications or substitutions made by those skilled in the art without departing from the essence and scope of protection of the present invention should also be within the scope of protection of the present invention.

Claims

1. A toner cartridge counting gear reset device, comprising a mounting base (1), characterized in that: The installation platform (1) is equipped with a reset detection assembly (2), a counting gear reset assembly (3), and a toner cartridge limiting loading platform (4). The reset detection assembly (2) includes a first detection cylinder (211), a second detection cylinder (213), a connector (212) connecting the output end of the first detection cylinder (211) and the second detection cylinder (213), and a probe rod (214) that passes through the connector (212) and is connected to the output end of the second detection cylinder (213). The end of the probe rod (214) The device is equipped with a probe end for engaging with the D-shaped opening of the toner cartridge gear end cover. The second detection cylinder (213) is equipped with a stroke sensor (2131). The counting gear reset assembly (3) includes a reset drive cylinder (33), a reset push rod (35) driven by the reset drive cylinder (33) to slide axially, a rotation drive sleeve (36) sleeved on the outer periphery of the reset push rod (35), a rotary reset motor (32) that drives the rotation drive sleeve (36) to rotate, and a counting gear drive head (39) located at the end of the reset push rod (35).

2. The toner drum counting gear reset device according to claim 1, characterized in that: The connector (212) is an integrally formed bent structure. The connector (212) includes a first extension section (2121) and a second extension section (2122) that are parallel to each other, and a transverse transition section (2123) that connects the two. The first extension section (2121) is fixed to the output end of the first detection cylinder (211), and the second detection cylinder (213) is fixed to the inner side wall of the first extension section (2121). The probe (214) is provided through the transverse transition section (2123) and the second extension section (2122).

3. The toner drum counting gear reset device according to claim 2, characterized in that: The end of the probe (214) is provided with a first fastening head (2141) and a probe D-shaped rod (2142). The probe (214) is fixedly connected to the probe D-shaped rod (2142) through the first fastening head (2141). The probe D-shaped rod (2142) constitutes the probe end.

4. The toner drum counting gear reset device according to claim 2, characterized in that: The cross-sectional shape of the probe rod (214) that mates with the transverse transition section (2123) and the second extension section (2122) is polygonal.

5. The toner drum counting gear reset device according to claim 1, characterized in that: The cross-sectional shape of the reset push rod (35) and the inside of the rotation drive sleeve (36) is polygonal.

6. The toner drum counting gear reset device according to claim 1, characterized in that: The reset push rod (35) is provided with a second fastening head (38) at its end, and the reset push rod (35) is fixedly connected to the counting gear drive head (39) through the second fastening head (38).

7. The toner drum counting gear reset device according to claim 1, characterized in that: The reset detection assembly (2) further includes a detection mounting bracket (21), on which the first detection cylinder (211) is mounted. The counting gear reset assembly (3) further includes a reset mounting bracket (31), on which the reset drive cylinder (33) and the rotary reset motor (32) are both mounted. The reset mounting bracket (31) has a limiting bearing seat (311) on the side near the rotary drive sleeve (36) corresponding to the two ends of the rotary drive sleeve (36). The two ends of the rotary drive sleeve (36) are rotated and fitted into the limiting bearing seat (311) through bearings.

8. The toner drum counting gear reset device according to claim 1, characterized in that: The counting gear reset assembly (3) also includes a passive engagement wheel (37) sleeved on the outer periphery of the rotating drive sleeve (36) and a rotating push block (34) disposed at the output end of the reset drive cylinder (33). The reset push rod (35) is rotatably engaged on the rotating push block (34), and the rotating reset motor (32) is connected to the passive engagement wheel (37) via a belt.

9. A reset method for a toner drum counting gear reset device according to any one of claims 1 to 8, characterized in that, Includes the following steps: S1: Start the first detection cylinder (211) to drive the detection rod (214) to extend axially, so that the detection end reaches the front of the D-type opening of the selenium drum counting gear; S2: Activate the second detection cylinder (213) to push the detection rod (214) to slide along the guide of the connector (212) so that the detection end is embedded in the D-shaped opening; S3: Real-time feedback of displacement data via stroke sensor (2131): When the displacement reaches the preset threshold, it is determined that the reset has been completed; when the displacement does not reach the threshold and there is no change within the preset time, it is determined that the reset is required, and the probe rod (214) is driven to return to the initial position. S4: Start the reset drive cylinder (33) to drive the reset push rod (35) to slide axially, so that the counting gear drive head (39) meshes with the counting gear; S5: Start the rotary reset motor (32) to drive the rotary drive sleeve (36) to rotate the reset push rod (35) and the counting gear drive head (39) for a preset stroke and then stop; S6: Reset the drive cylinder (33) to drive the counting gear drive head (39) to retract, and repeat S1 to S3 to verify the reset result.

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