Device for assembling reset torsion spring of selenium drum

Abstract

The present application relates to the technical field of selenium drum automatic assembly, and discloses a selenium drum reset torsion spring assembly device, which comprises a torsion spring automatic feeding mechanism, a spring rotating installation mechanism, a torsion spring torsion arm adjusting mechanism, a selenium drum clamping mechanism and a selenium drum fixing seat, a torsion spring turnover installation support is installed on the top of the selenium drum clamping mechanism, a longitudinal movement structure is installed on the torsion spring turnover installation support through a transverse movement structure, a torsion spring turnover structure and a torsion spring installation structure are connected with the longitudinal movement structure, the torsion spring automatic feeding mechanism is connected with the torsion spring torsion arm adjusting mechanism through the torsion spring turnover structure, the selenium drum fixing seat is fixed with a selenium drum, the selenium drum is clamped in the selenium drum clamping mechanism, and the torsion spring torsion arm adjusting mechanism is connected with the selenium drum through the torsion spring installation structure. The present application can realize posture turnover of the torsion spring and automatic adjustment of the torsion arm angle of the torsion spring, can realize high-precision positioning and installation in the narrow space in the gear end of the selenium drum, can reduce the proficiency requirement of workers on the torsion spring installation, and can improve work efficiency and the product qualification rate of the selenium drum.

Description

Technical Field

[0001] This invention relates to the technical field of automatic assembly of toner cartridges, and more particularly to an assembly device for a toner cartridge reset torsion spring. Background Technology

[0002] In the manufacturing process of laser printer drums, the torsion spring is the core reset component, and its installation accuracy directly affects the stability and service life of the drum gear transmission. In the traditional assembly process, the torsion spring needs to be installed manually: the operator needs to accurately embed the spiral body with a diameter of only a few millimeters into the narrow space at the end of the drum gear, and at the same time, use tweezers or fingers to compress, position and adjust the posture of the elastic torsion arm of the torsion spring, so that it is finally assembled with the gear end. However, this manual installation mode has significant technical bottlenecks: (1) Limited operating space: the installation area at the end of the drum gear is narrow (usually less than 10mm×10mm), and the spiral body of the torsion spring and the torsion arm need to maintain a specific spatial angle (such as the axis of the spiral body being perpendicular to the plane of the gear end). Manual visual positioning is prone to positional deviations of more than ±2mm, resulting in the failure of the snap-fit; (2) Difficulty in controlling the elastic element: the stiffness coefficient of the torsion spring torsion arm is often 5-8N / mm, and a force of 10-15N needs to be applied when manually compressing it, which is not only laborious. (3) Lack of posture synchronization: During installation, the spatial relationship between the spiral axis and the torsion arm unfolding direction needs to be controlled synchronously. Manual operation is difficult to achieve 90° rotation (error > ±5°), resulting in about 20% of torsion springs and gears not meshing properly; (4) Low assembly efficiency: The installation of a single torsion spring takes as long as 120-180 seconds and requires skilled workers, which is difficult to meet the cycle demand of 1-2 pieces per minute of modern production lines. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and to provide an assembly device for a torsion spring for a toner cartridge reset.

[0004] The objective of this invention is achieved through the following technical solution: The assembly device for the toner cartridge reset torsion spring includes an automatic torsion spring feeding mechanism, a spring rotation mounting mechanism, a torsion spring torsion arm adjustment mechanism, a toner cartridge clamping mechanism, and a toner cartridge fixing seat. The spring rotation mounting mechanism includes a torsion spring flip mounting bracket, a lateral movement structure, a longitudinal movement structure, a torsion spring flipping structure, and a torsion spring mounting structure. The torsion spring flip mounting bracket is mounted on the top of the toner cartridge clamping mechanism. The longitudinal movement structure is mounted on the torsion spring flip mounting bracket via the lateral movement structure. Both the torsion spring flipping structure and the torsion spring mounting structure are connected to the longitudinal movement structure. The automatic torsion spring feeding mechanism is connected to the torsion spring torsion arm adjustment mechanism via the torsion spring flipping structure. The toner cartridge fixing seat holds the toner cartridge, which is clamped in the toner cartridge clamping mechanism. The torsion spring torsion arm adjustment mechanism is connected to the toner cartridge via the torsion spring mounting structure. This device can automatically feed torsion springs, adjust the posture of torsion springs, and automatically install torsion springs, thereby achieving high-precision installation of torsion springs in the narrow space of the toner cartridge, improving product yield, reducing the skill requirements of operators, increasing work efficiency, and reducing production costs.

[0005] A better alternative is that the torsion spring flipping structure includes a torsion spring flipping assembly and a torsion spring gripping assembly, the torsion spring gripping assembly being connected to the longitudinally moving structure via the torsion spring flipping assembly. This structure can automatically grip the torsion spring and flip it 90° in preparation for installation into the toner cartridge.

[0006] A better alternative is the torsion spring flipping assembly, which includes a longitudinal flipping cylinder, a longitudinal flipping fixed seat, a rack guide block, a flipping rack, a gear fixed seat, a buffer, a gear shaft, and an angle adjusting component. The longitudinal flipping cylinder, the rack guide block, and the gear fixed seat are all mounted on the longitudinal moving structure via the longitudinal flipping fixed seat. The flipping rack is slidably connected to the rack guide block and fixedly connected to the telescopic rod of the longitudinal flipping cylinder. The gear shaft is rotatably connected to the gear fixed seat, and the flipping rack meshes with the gear shaft. One end of the gear shaft is fixedly connected to the angle adjusting component, and the other end is connected to the torsion spring gripping assembly. The buffer is mounted on the gear fixed seat and limits the angle adjusting component. This assembly provides high-precision angle control, ensuring accurate flipping angles; reliable mechanical transmission, reducing failure rates; and the limiting functions of the buffer and angle adjusting component allow for precise control of the torsion spring's flipping angle. This assembly features a modular design for easy maintenance and adjustment; and improves assembly efficiency, reducing manual operation time and errors.

[0007] A better alternative is that the torsion spring gripping assembly includes a gripping cylinder mounting base, a torsion spring gripping cylinder, and a torsion spring gripper. The fixed end of the torsion spring gripping cylinder is connected to the torsion spring flipping assembly through the gripping cylinder mounting base, and the torsion spring gripper is mounted on the movable end of the torsion spring gripping cylinder.

[0008] A superior option is the torsion spring mounting structure, which includes a mounting cylinder fixing seat, a longitudinal telescopic cylinder, a longitudinal sliding base, a torsion spring picking rod, a torsion spring mounting cylinder, and a unloading block. The longitudinal telescopic cylinder is mounted on the longitudinal moving structure via the mounting cylinder fixing seat. The longitudinal sliding base is connected to the telescopic rod of the longitudinal telescopic cylinder. One end of both the torsion spring mounting cylinder and the torsion spring picking rod is fixedly connected to the longitudinal sliding base. The unloading block is connected to the telescopic rod of the torsion spring mounting cylinder. The other end of the torsion spring picking rod passes through the unloading block, and the other end of the torsion spring picking rod corresponds to the torsion spring torsion arm adjustment mechanism and the toner cartridge, respectively. This structure allows for the installation of the torsion spring within the narrow space of the toner cartridge and enables precise control of the torsion spring's pushing force, ensuring the quality of the torsion spring after installation.

[0009] A better alternative is that the torsion spring torsion arm adjustment mechanism includes a torsion spring torsion arm adjustment bracket, a torsion spring feeding cylinder, a torsion spring feeding seat, a push cylinder fixing seat, a push telescopic cylinder, a torsion spring push block, and a torsion spring positioning seat. The torsion spring feeding cylinder, the torsion spring positioning seat, and the push cylinder fixing seat are all mounted on the torsion spring torsion arm adjustment bracket. The torsion spring push block is connected to the push cylinder fixing seat via the push telescopic cylinder. One end of the torsion spring feeding seat is connected to the torsion spring feeding cylinder. The torsion spring positioning seat passes through the other end of the torsion spring feeding seat and corresponds to the torsion spring push block. The torsion spring positioning seat corresponds to the torsion spring flipping structure. This mechanism can position the torsion spring and automatically adjust the torsion arm position.

[0010] A better option is that the torsion spring positioning seat includes a positioning pin, a blocking rod, and a torsion spring base plate. The positioning pin is mounted on the torsion spring torsion arm adjusting bracket via the torsion spring base plate. The blocking rod is located to the side of the positioning pin and corresponds to the torsion spring pushing block and the torsion spring flipping structure, respectively.

[0011] A better alternative is the automatic torsion spring feeding mechanism, which includes a torsion spring vibratory feeder, a torsion spring stop structure, and a feeding bracket. Both the torsion spring vibratory feeder and the torsion spring stop structure are mounted on the feeding bracket. The discharge end of the torsion spring vibratory feeder is connected to the torsion spring stop structure, and both the discharge end of the torsion spring vibratory feeder and the torsion spring stop structure correspond to the torsion spring flipping structure. This mechanism enables automatic feeding and automatic stopping of the torsion springs, facilitating gripping by the torsion spring flipping structure.

[0012] A better alternative is that the torsion spring stop structure includes a torsion spring stop bracket, a torsion spring stop cylinder, and a torsion spring stop block. The torsion spring stop bracket is installed on the feeding bracket. The torsion spring stop block is connected to the torsion spring stop bracket through the discharge end of the torsion spring stop cylinder. The torsion spring stop block is connected to the torsion spring vibrating plate. The torsion spring stop block is matched with the torsion spring flipping structure.

[0013] A better option is that the toner cartridge clamping mechanism includes a toner cartridge clamping bracket, a toner cartridge clamping cylinder, and a toner cartridge clamping block. The toner cartridge clamping block is connected to the toner cartridge clamping bracket via the toner cartridge clamping cylinder, and the toner cartridge clamping block is located on both sides of the toner cartridge.

[0014] A preferred embodiment includes a lateral moving structure comprising a lateral fixed base, a lateral moving motor, a lateral moving threaded shaft, a lateral moving slide rail, a lateral moving slider, and a lateral moving threaded block. The lateral moving motor is mounted on the torsion spring flip-up mounting bracket via the lateral fixed base. The lateral moving motor is connected to the lateral moving threaded shaft, and the lateral moving threaded block is threadedly connected to the lateral moving threaded shaft. The lateral moving slide rail is mounted on both sides of the lateral moving threaded shaft, and the lateral moving slider is slidably connected to the lateral moving slide rail. Both the lateral moving slider and the lateral moving threaded block are connected to the longitudinal moving structure. This structure is used to drive the torsion spring flip-up structure and the torsion spring mounting structure to move in a first direction.

[0015] A preferred embodiment includes a longitudinally fixed base, a longitudinally moving motor, a longitudinally moving slide rail, a longitudinally moving slider, a longitudinally moving threaded block, and a longitudinally driving screw. The longitudinally moving motor, the torsion spring mounting structure, and the transversely moving structure are all fixedly connected to the longitudinally fixed base. The longitudinally moving motor is connected to the longitudinally driving screw, which is threadedly connected to the longitudinally moving threaded block. The longitudinally moving slide rail is located on both sides of the longitudinally driving screw and is slidably connected to the longitudinally moving slider. The longitudinally moving threaded block is connected to the torsion spring flipping structure. This structure enables the torsion spring flipping structure to move vertically in a third direction.

[0016] The present invention has the following advantages and beneficial effects compared with the prior art: This invention enables the automatic feeding mechanism of the torsion spring, the spring rotation and installation mechanism, the torsion spring torsion arm adjustment mechanism, the toner cartridge clamping mechanism, and the toner cartridge fixing seat to achieve the attitude flipping of the torsion spring and the automatic adjustment of the torsion arm angle. It also enables high-precision positioning and installation within the narrow space inside the gear end of the toner cartridge, reducing the skill requirements of operators in installing the torsion spring and improving work efficiency and the product qualification rate of the toner cartridge. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the assembly device for the toner cartridge reset torsion spring of the present invention; Figure 2 This is a schematic diagram of the torsion spring retaining structure of the assembly device for the torsion spring reset spring of the present invention; Figure 3 This is a schematic diagram of the torsion spring rotation mounting mechanism of the assembly device for the torsion spring reset torsion spring of the present invention; Figure 4 This is a schematic diagram of the lateral movement structure of the assembly device for the torsion spring reset spring of the present invention; Figure 5 This is a schematic diagram of the longitudinal movement structure of the assembly device for the torsion spring reset spring of the present invention; Figure 6 This is a schematic diagram of the torsion spring flipping structure of the assembly device for the torsion spring reset spring of the present invention; Figure 7 This is an exploded schematic diagram of the torsion spring flipping structure of the assembly device for the torsion spring reset torsion spring of the present invention; Figure 8 This is a schematic diagram of the torsion spring mounting structure of the assembly device for the torsion spring reset spring of the present invention; Figure 9 This is a schematic diagram of the torsion spring torsion arm adjustment mechanism of the assembly device for the torsion spring reset torsion spring of the present invention. Figure 10 This is an exploded schematic diagram of the torsion spring torsion arm adjustment mechanism of the assembly device for the torsion spring reset spring of the present invention. Figure 11 This is a schematic diagram of the torsion spring positioning seat of the assembly device for the torsion spring reset torsion spring of the present invention; Figure 12 This is a schematic diagram of the toner cartridge clamping mechanism of the assembly device for the toner cartridge reset torsion spring of the present invention; Figure 13 This is a schematic diagram of the assembly device for the toner cartridge reset torsion spring of the present invention, showing the combination of the toner cartridge fixing seat and the toner cartridge; The components in the attached diagram are labeled as follows: 1-Torsion spring automatic feeding mechanism; 11-Torsion spring vibratory feeder; 12-Torsion spring material blocking structure; 1201-Torsion spring material blocking bracket; 1202-Torsion spring material blocking cylinder; 1203-Torsion spring stop block; 13-Feeding bracket; 2-Torsion spring rotating mounting mechanism; 21-Torsion spring flipping mounting bracket; 22-Lateral moving structure; 221-Lateral fixed base; 222-Lateral moving motor; 223-Lateral moving threaded shaft; 224-Lateral moving slide rail; 225-Lateral... 226-Moving slider; 23-Horizontal moving threaded block; 23-Longitudinal moving structure; 231-Longitudinal fixed base; 232-Longitudinal moving motor; 233-Longitudinal moving slide rail; 234-Longitudinal moving slider; 235-Longitudinal moving threaded block; 236-Longitudinal drive screw; 24-Torsion spring flipping structure; 2401-Longitudinal flipping cylinder; 2402-Longitudinal flipping fixed seat; 2403-Rack guide block; 2404-Flipping rack; 2405-Gear fixed seat; 2406- 2407-Grip cylinder mounting base; 2408-Torsion spring gripping cylinder; 2409-Torsion spring gripper; 2410-Buffer; 2411-Gear shaft; 2411-Angle adjustment component; 25-Torsion spring mounting structure; 251-Mounting cylinder mounting base; 252-Longitudinal telescopic cylinder; 253-Longitudinal sliding base; 254-Torsion spring picking rod; 255-Torsion spring mounting cylinder; 256-Unloading block; 3-Torsion spring torsion arm adjustment mechanism; 301-Torsion spring torsion arm adjustment bracket; 302-Torsion spring feeding cylinder ; 303-Torsion spring feeder; 304-Push cylinder mounting base; 305-Push telescopic cylinder; 306-Torsion spring push block; 307-Torsion spring positioning base; 3071-Positioning pin; 3702-Blocking rod; 3703-Torsion spring base plate; 308-Induction sensor; 4-Toner cartridge clamping mechanism; 401-Toner cartridge clamping bracket; 402-Toner cartridge clamping cylinder; 403-Toner cartridge clamping block; 5-Toner cartridge mounting base; 6-Toner cartridge; a-First direction; b-Second direction; c-Third direction. Detailed Implementation

[0018] The invention's objective will be further described in detail below with reference to the accompanying drawings and specific embodiments. The embodiments cannot be described in detail here, but the implementation of the invention is not limited to the following embodiments.

[0019] In this embodiment, the arrow in the first direction a points to the right, and the opposite direction points to the left; the arrow in the third direction b points to the rear, and the opposite direction points to the front; the arrow in the third direction c points to the top, and the opposite direction points to the bottom. The torsion spring in this embodiment includes a positioning block, two torsion arms, and a helical body. The positioning block is connected to the end of the helical body, and the two torsion arms are connected to both ends of the helical body. The positioning block has a through hole that overlaps with the inner hole of the helical body.

[0020] like Figure 1As shown, the assembly device for the toner cartridge reset torsion spring includes an automatic torsion spring feeding mechanism 1, a spring rotation mounting mechanism 2, a torsion spring torsion arm adjustment mechanism 3, a toner cartridge clamping mechanism 4, and a toner cartridge fixing seat 5. The automatic torsion spring feeding mechanism 1 includes a feeding bracket 13, a torsion spring vibratory plate 11, and a torsion spring baffle structure 12. The torsion spring vibratory plate 11, the torsion spring baffle structure 12, and the torsion spring torsion arm adjustment mechanism 3 are installed sequentially from left to right on the top of the feeding bracket 13. The toner cartridge fixing seat 5 is located on the right side of the feeding bracket 13, and the toner cartridge clamping mechanism 4 is located on both sides of the toner cartridge fixing seat 5. The spring rotation mounting mechanism 2 is installed on top of the toner cartridge clamping mechanism 4. The discharge end of the torsion spring vibratory plate 11 is connected to the torsion spring baffle structure 12. The discharge end of the torsion spring vibratory plate 11 is connected to the torsion spring torsion arm adjustment mechanism 3 through the torsion spring flipping structure 24 of the spring rotation mounting mechanism 2. The torsion spring torsion arm adjustment mechanism 3 is connected to the toner cartridge fixing seat 5 through the torsion spring mounting structure 25.

[0021] The automatic torsion spring feeding mechanism 1 stores and continuously supplies torsion springs. The torsion spring rotation mounting mechanism 2 adjusts the posture of the torsion springs and mounts them onto the gear end of the torsion drum 6. The torsion spring torsion arm adjustment mechanism 3 adjusts the position of the torsion arm and feeds the torsion springs onto the torsion spring mounting structure 25 of the torsion spring rotation mounting mechanism 2. The torsion drum clamping mechanism 4 secures the upper end of the torsion drum 6 for easy torsion spring installation. The torsion drum fixing seat 5 positions the torsion drum 6. The feeding bracket 13 mounts and secures the torsion spring vibratory feeder 11 and the torsion spring blocking structure 12. The torsion spring vibratory feeder 11 is purchased from the existing market and stores and supplies torsion springs one by one. The torsion spring blocking structure 12 blocks the torsion springs at the discharge end of the torsion spring vibratory feeder 11, facilitating gripping by the torsion spring flipping structure 24.

[0022] like Figure 2 As shown, the torsion spring stop structure 12 includes a torsion spring stop bracket 1201, a torsion spring stop cylinder 1202, and a torsion spring stop block 1203. The torsion spring stop bracket 1201 is installed on top of the feeding bracket 13. The torsion spring stop cylinder 1202 is installed on top of the torsion spring stop bracket 1201 and is axially perpendicular to the discharge end of the torsion spring vibratory plate 11. The torsion spring stop block 1203 is connected to the telescopic rod of the torsion spring stop cylinder 1202. When the telescopic rod of the torsion spring stop cylinder 1202 extends, the torsion spring stop block 1203 is located directly in front of the discharge end of the torsion spring vibratory plate 11; when the telescopic rod of the torsion spring stop cylinder 1202 retracts, the torsion spring stop block 1203 is located in front of the discharge end of the torsion spring vibratory plate 11, that is, the torsion spring stop block 1203 positions the torsion spring at the discharge end of the torsion spring vibratory plate 11.

[0023] The torsion spring stop bracket 1201 supports the torsion spring stop cylinder 1202, keeping the torsion spring stop block 1203 at the same height as the discharge end of the torsion spring vibratory plate 11. The torsion spring stop cylinder 1202 provides power for the movement of the torsion spring stop block 1203. The torsion spring stop block 1203 blocks the discharge end of the torsion spring vibratory plate 11, facilitating the gripping of the torsion spring flipping structure 24.

[0024] like Figure 3 As shown, the torsion spring rotation mounting mechanism 2 includes a spring flip mounting bracket 21, a lateral moving structure 22, a longitudinal moving structure 23, a torsion spring flipping structure 24, and a torsion spring mounting structure 25. The spring flip mounting bracket 21 is mounted on top of the toner cartridge clamping mechanism 4. The lateral moving structure 22 is mounted on top of the spring flip mounting bracket 21, and the longitudinal moving structure 23 is perpendicularly connected to the lateral moving structure 22. The torsion spring flipping structure 24 is connected to the longitudinal moving slider 234 of the longitudinal moving structure 23. The torsion spring mounting structure 25 is connected to the longitudinal fixed base 231 of the longitudinal moving structure 23.

[0025] The spring-flipping mounting bracket 21 is used to fix the lateral moving structure 22. The lateral moving structure 22 is used to drive the torsion spring flipping structure 24 and the torsion spring mounting structure 25 to move in the first direction a. The longitudinal moving structure 23 is used to drive the torsion spring flipping structure 24 to move in the third direction c. The torsion spring flipping structure 24 is used to grab the torsion spring on the torsion spring vibrating plate 11, flip the torsion spring, and place it on the torsion spring positioning seat 307 of the torsion spring torsion arm adjusting mechanism 3. The torsion spring mounting structure 25 is used to grab the torsion spring after the torsion arm is adjusted, and install the torsion spring onto the gear end of the torsion drum 6 on the torsion drum fixing seat 5.

[0026] like Figure 4As shown, the lateral movement structure 22 includes a lateral fixed base 221, a lateral movement motor 222, a lateral movement threaded shaft 223, two lateral movement slide rails 224, two lateral movement sliders 225, and a lateral movement threaded block 226. The lateral fixed base 221 is mounted on top of the spring-loaded rotating mounting bracket 21 and is positioned laterally. The lateral movement motor 222 is fixedly connected to the right end of the lateral fixed base 221. Both ends of the lateral movement threaded shaft 223 are mounted on the lateral fixed base 221 via shaft brackets, allowing the lateral movement threaded shaft 223 to rotate relative to the lateral fixed base 221. The shaft of the lateral movement motor 222 is connected to the end of the lateral movement threaded shaft 223 via a coupling. The lateral movement threaded block 226 is sleeved on the lateral movement threaded shaft 223, and the two are connected by threads. Two transverse sliding rails 224 are mounted on a transverse fixed base 221. The two transverse sliding rails 224 are located on the upper and lower sides of the transverse sliding threaded shaft 223, respectively, and their axial directions are the same as those of the transverse sliding threaded shaft 223. Two transverse sliding blocks 225 are slidably connected to the two transverse sliding rails 224. The transverse sliding blocks 225 are connected to the rear side of the longitudinal fixed base 231 of the longitudinal moving structure 23. A transverse sliding threaded block 226 is also connected to the rear side of the longitudinal fixed base 231 of the longitudinal moving structure 23.

[0027] The transverse fixed base 221 is used to mount the transverse moving slide rail 224, the transverse moving threaded block 226, and the transverse moving motor 222. The transverse moving motor 222 provides power for the left and right movement of the torsion spring flipping structure 24 and the torsion spring mounting structure 25. The cooperation of the transverse moving threaded shaft 223 and the transverse moving threaded block 226 allows the longitudinal fixed base 231 to move in the first direction a. The cooperation of the transverse moving slide rail 224 and the transverse moving slider 225 guides the longitudinal fixed base 231.

[0028] like Figure 5As shown, the longitudinal moving structure 23 includes a longitudinal fixed base 231, a longitudinal moving motor 232, two longitudinal moving slide rails 233, two longitudinal moving sliders 234, a longitudinal moving threaded block 235, and a longitudinal driving screw 236. The longitudinal moving motor 232 is mounted on the top of the longitudinal fixed base 231. The mounting cylinder mounting seat 251 of the torsion spring mounting structure 25 is fixedly connected to the rear side of the longitudinal fixed base 231. The rear side of the longitudinal fixed base 231 is connected to the transverse moving slider 225 of the transverse moving structure 22, the transverse moving threaded block 226 of the transverse moving structure 22, and the mounting cylinder mounting seat 251 of the torsion spring mounting structure 25, respectively. The longitudinal fixed base 231 is perpendicular to the transverse fixed base 221. The two ends of the longitudinal driving screw 236 are mounted on the front side of the longitudinal fixed base 231 through shaft brackets, and the longitudinal driving screw 236 can rotate relative to the longitudinal fixed base 231. The rotating shaft of the longitudinal moving motor 232 is connected to the end of the longitudinal driving screw 236 through a coupling. The longitudinal moving slide rails 233 are all mounted on the front side of the longitudinal fixed base 231, and the two longitudinal moving slide rails 233 are located on both sides of the longitudinal drive screw 236. The longitudinal moving slide rails 233 are slidably connected to the longitudinal moving sliders 234. The longitudinal moving threaded block 235 is connected to the longitudinal flipping fixed seat 2402 of the torsion spring flipping structure 24, and the torsion spring flipping structure 24 is located on the left side of the longitudinal moving threaded block 235.

[0029] The longitudinal fixed base 231 is used to mount the longitudinal movement motor 232, the longitudinal drive screw 236, and the longitudinal movement slide rail 233. The longitudinal movement motor 232 provides power for the torsion spring flipping structure 24 to move in the third direction c. The cooperation between the longitudinal movement slide rail 233 and the longitudinal movement slider 234 guides the torsion spring flipping structure 24. The cooperation between the longitudinal movement threaded block 235 and the longitudinal drive screw 236 allows the torsion spring flipping structure 24 to move in the third direction c.

[0030] like Figure 6 and 7As shown, the torsion spring flipping structure 24 includes a torsion spring flipping assembly and a torsion spring gripping assembly. The torsion spring flipping assembly includes a longitudinal flipping cylinder 2401, a longitudinal flipping fixing seat 2402, a rack guide block 2403, a flipping rack 2404, a gear fixing seat 2405, two buffers 2409, a gear shaft 2410, and an angle adjusting component 2411. The torsion spring gripping assembly includes a gripping cylinder fixing seat 2406, a torsion spring gripping cylinder 2407, and two torsion spring grippers 2408. The longitudinal flipping fixing seat 2402 is connected to the longitudinal moving threaded block 235 and is located on the left side of the longitudinal moving threaded block 235. The longitudinal flipping cylinder 2401 is installed at the upper end of the longitudinal flipping fixing seat 2402, and the gear fixing seat 2405 is installed at the lower end of the longitudinal flipping fixing seat 2402. The gear mounting base 2405 has a through gear slot. The rack guide block 2403 is installed at the lower end of the longitudinal tilting mounting base 2402 and passes through the gear slot. The tilting rack 2404 is slidably connected to the rack guide block 2403, and the upper end of the tilting rack 2404 is fixedly connected to the telescopic rod of the longitudinal tilting cylinder 2401. The gear shaft 2410 is rotatably connected to the gear mounting base 2405. Both ends of the gear shaft 2410 pass through the sides of the gear mounting base 2405 and protrude outwards. The rear end of the gear shaft 2410 is fixedly connected to the angle adjusting member 2411, and the front end of the gear shaft 2410 is fixedly connected to the gripping cylinder mounting base 2406. Two buffers 2409 are installed on the rear side of the gear mounting base 2405, and both buffers 2409 limit the rotation angle of the angle adjusting member 2411. The torsion spring gripping cylinder 2407 is installed in the gripping cylinder mounting base 2406, and the movable end of the torsion spring gripping cylinder 2407 is connected to the torsion spring gripper 2408.

[0031] The torsion spring reversing assembly is used to adjust the orientation of the torsion spring's helix from a first direction a to a third direction c. The longitudinal reversing cylinder 2401 provides power for the reversing rack 2404 to move up and down in the third direction c. The longitudinal reversing mounting base 2402 is used to fix and mount the rack guide block 2403, the gear mounting base 2405, and the longitudinal reversing cylinder 2401. The rack guide block 2403 guides the reversing rack 2404. The reversing rack 2404 drives the gear shaft 2410 to rotate. The gear mounting base 2405 mounts the gear shaft 2410 and the buffer 2409. The buffer 2409 limits and buffers the rotation angle of the angle adjusting member 2411. The gear shaft 2410 acts as a transmission mechanism to drive the torsion spring to reverse. The angle adjusting member 2411 cooperates with the buffer 2409 to limit the reversing angle of the torsion spring. The torsion spring gripping assembly is used to grip the torsion spring and is mounted on the gear end of the toner cartridge 6; the gripping cylinder mounting base 2406 is used to fix the torsion spring gripping cylinder 2407. The torsion spring gripping cylinder 2407 provides power for the opening and closing of the torsion spring gripper 2408. The torsion spring gripper 2408 is used to grip the positioning block of the torsion spring.

[0032] like Figure 8 As shown, the torsion spring mounting structure 25 includes a mounting cylinder fixing seat 251, a longitudinal telescopic cylinder 252, a longitudinal sliding base 253, a torsion spring picking rod 254, a torsion spring mounting cylinder 255, and a discharge block 256. The mounting cylinder fixing seat 251 is fixedly connected to the rear side of the longitudinal fixed base 231 of the longitudinal moving structure 23. The longitudinal telescopic cylinder 252 is mounted on the front side of the mounting cylinder fixing seat 251. The rear side of the longitudinal sliding base 253 is slidably connected to the front side of the housing of the longitudinal telescopic cylinder 252. The telescopic rod of the longitudinal telescopic cylinder 252 is connected to the longitudinal sliding base 253. The torsion spring mounting cylinder 255 is mounted on the front side of the longitudinal sliding base 253, and the telescopic rod of the torsion spring mounting cylinder 255 is connected to the discharge block 256. The upper end of the torsion spring picking rod 254 is mounted on the front side of the longitudinal sliding base 253 and is located to the left of the torsion spring mounting cylinder 255. The lower end of the torsion spring picking rod 254 passes through the through hole of the unloading block 256 and extends downwards. The lower end of the torsion spring picking rod 254 can slide relative to the unloading block 256. When the telescopic rod of the torsion spring mounting cylinder 255 retracts, the torsion spring picking rod 254 moves upwards relative to the unloading block 256 in the third direction c, and the unloading block 256 pushes the torsion spring to disengage from the torsion spring picking rod 254.

[0033] The mounting cylinder holder 251 is used to securely mount the longitudinal telescopic cylinder 252. The longitudinal telescopic cylinder 252 is used to move the torsion spring to be installed in the third direction c. The longitudinal sliding base 253 is used to mount the torsion spring picking rod 254 and the torsion spring mounting cylinder 255. The torsion spring picking rod 254 is used to grip the torsion spring. The torsion spring mounting cylinder 255 provides power for the unloading block 256 to move in the third direction c. The unloading block 256 is used to push the torsion spring from the torsion spring picking rod 254 onto the torsion spring mounting post of the toner cartridge 6.

[0034] like Figure 9-10 As shown, the torsion spring torsion arm adjustment mechanism 3 includes a torsion spring torsion arm adjustment bracket 301, a torsion spring feeding cylinder 302, a torsion spring feeding seat 303, a push cylinder fixing seat 304, a push telescopic cylinder 305, a torsion spring push block 306, a torsion spring positioning seat 307, and two sensing sensors 308. The torsion spring torsion arm adjustment bracket 301 is installed on top of the feeding bracket 13 and is located to the right of the torsion spring stop bracket 1201. The torsion spring positioning seat 307 is installed on top of the torsion spring torsion arm adjustment bracket 301. The push telescopic cylinder 305 is installed on top of the torsion spring torsion arm adjustment bracket 301 via the push cylinder fixing seat 304 and is located to the right of the torsion spring positioning seat 307. The telescopic rod of the push telescopic cylinder 305 is connected to the torsion spring push block 306. The torsion spring push block 306 is inclined relative to the torsion spring positioning seat 307, and corresponds to the torsion spring positioning seat 307. A sensor 308 is located on the left side of the torsion spring positioning seat 307 to sense whether a torsion spring is present in the torsion spring positioning seat 307. Another sensor 308 is installed on the right side of the push cylinder fixing seat 304 to sense whether the torsion spring push block 306 pushes the torsion arm of the torsion spring. The torsion spring feeding cylinder 302 is installed on top of the torsion spring torsion arm adjusting bracket 301, and is recessed. The torsion spring feeding cylinder 302 is located on the left side of the torsion spring positioning seat 307. The telescopic rod of the torsion spring feeding cylinder 302 is connected to the torsion spring feeding seat 303. The positioning pin 3071 of the torsion spring positioning seat 307 passes through the through hole of the torsion spring feed seat 303 and extends upward. The positioning pin 3071 of the torsion spring positioning seat 307 corresponds to the torsion spring push block 306. The positioning pin 3071 of the torsion spring positioning seat 307 corresponds to the torsion spring gripper 2408 of the torsion spring flipping structure 24.

[0035] like Figure 11As shown, the torsion spring positioning seat 307 includes a positioning pin 3071, a blocking rod 3072, and a torsion spring base plate 3073. The torsion spring base plate 3073 is fixed to the top of the torsion spring torsion arm adjusting bracket 301. Both the positioning pin 3071 and the blocking rod 3072 are perpendicularly connected to the torsion spring base plate 3073, and are parallel to each other. The torsion spring base plate 3073 is used to fix the positioning pin 3071 and the blocking rod 3072; the positioning pin 3071 is used to position the torsion spring; and the blocking rod 3072 is used to limit the torsion arm of the torsion spring.

[0036] like Figure 12 As shown, the toner cartridge clamping mechanism 4 includes two toner cartridge clamping brackets 401, two toner cartridge clamping cylinders 402, and two toner cartridge clamping blocks 403. The two toner cartridge clamping brackets 401 are located on both sides of the toner cartridge mounting base 5. The two toner cartridge clamping cylinders 402 are fixedly mounted on the top of the two toner cartridge clamping brackets 401. The telescopic rods of the two toner cartridge clamping cylinders 402 are connected to the two toner cartridge clamping blocks 403. The toner cartridge mounting base 5 holds a toner cartridge 6, which is vertically positioned with its gear end facing upwards. The two toner cartridge clamping blocks 403 are located on both sides of the toner cartridge 6. The toner cartridge clamping brackets 401 are connected to the spring-loaded rotating mounting bracket 21. The toner cartridge clamping brackets 401 provide support and are used to fix the toner cartridge clamping cylinders 402. The toner cartridge clamping cylinders 402 provide power for the toner cartridge clamping blocks 403 to clamp the toner cartridge 6. The drum clamping block 403 is used to clamp the drum 6.

[0037] Instructions for the operation of the assembly device for the toner cartridge reset torsion spring: Step 1: Place the toner cartridge 6 onto the toner cartridge mounting base 5. After turning on the device, the toner cartridge clamping mechanism 4 clamps both sides of the upper end of the toner cartridge 6, fixing the toner cartridge 6 in place. The torsion spring vibratory feeder 11 feeds the torsion springs one by one. When a spring is delivered to the discharge end of the torsion spring vibratory feeder 11, the torsion spring baffle structure 12 senses the torsion spring, and the torsion spring baffle cylinder 1202 pushes the torsion spring baffle block 1203 to the front end of the discharge end, thereby stopping and positioning the torsion spring. At this time, the spindle of the torsion spring's spiral body faces the first direction a, and its torsion arm faces forward.

[0038] Step 2: Driven by the lateral moving structure 22, the torsion spring flipping structure 24 moves to directly above the discharge end of the torsion spring vibrating plate 11. The torsion spring blocking cylinder 1202 drives the torsion spring stop block 1203 to retract. At the same time, the longitudinal moving structure 23 drives the torsion spring flipping structure 24 to move downward. The torsion spring gripping cylinder 2407 drives the torsion spring gripper 2408 to open and grip both ends of the torsion spring's spiral body. Then, the longitudinal moving structure 23 drives the torsion spring gripper 2408 to move upward in the third direction c. The lateral moving structure 22 drives the torsion spring gripper 2408 to move to the right. At the same time, driven by the longitudinal flipping cylinder 2401, the torsion spring gripper 2408 rotates 90 degrees clockwise. The axis of the torsion spring gripping cylinder 2407 coincides with the first direction a, that is, the spindle of the torsion spring's spiral body faces the third direction c. The longitudinal moving structure 23 drives the torsion spring gripper 2408 to move downward in the third direction c, and puts the spiral body of the torsion spring into the positioning pin 3071 of the torsion spring positioning seat 307 of the torsion spring torsion arm adjusting mechanism 3. The torsion arm of the torsion spring is restricted to the left side of the blocking rod 3072 of the torsion spring positioning seat 307, and the torsion spring is located on the torsion spring feeding seat 303.

[0039] Step 3: The push-and-retract cylinder 305 drives the torsion spring push block 306 to move to the left and forward. The torsion spring push block 306 pushes the torsion arm of the torsion spring to rotate clockwise around the positioning pin 3071. At this time, the torsion arm of the torsion spring changes from facing forward to facing left and forward. Driven by the lateral moving structure 22, the torsion spring mounting structure 25 moves to directly above the positioning pin 3071. The longitudinal telescopic cylinder 252 drives the torsion spring picking rod 254 to move from top to bottom in the third direction c. The lower end of the torsion spring picking rod 254 connects with the upper end of the positioning pin 3071. The telescopic rod of the torsion spring feeding cylinder 302 extends upward, thereby pushing the torsion spring feeding seat 303 to move upward relative to the positioning pin 3071. That is, the torsion spring is pushed from the positioning pin 3071 to the torsion spring picking rod 254. When the torsion spring is fully fitted onto the torsion spring picking rod 254, the torsion arm of the torsion spring is also limited to the left side of the unloading block 256, which can prevent the torsion arm of the torsion spring from changing position during the movement. The torsion spring feeding cylinder 302 drives the torsion spring feeding seat 303 to retract.

[0040] Step 4: Driven by the lateral moving structure 22, the torsion spring picking rod 254 moves from directly above the torsion spring torsion arm adjusting mechanism 3 to directly above the toner cartridge fixing seat 5. Driven by the longitudinal telescopic cylinder 252, the torsion spring picking rod 254 moves downward and aligns with the spring post of the toner cartridge 6 in the third direction c. Driven by the torsion spring installation cylinder 255, the unloading block 256 moves downward relative to the torsion spring picking rod 254 in the third direction c, that is, the unloading block 256 pushes the torsion spring towards the spring post of the toner cartridge 6 until the torsion spring is fitted into the spring post of the toner cartridge 6. The toner cartridge clamping mechanism 4 then springs open, removing the toner cartridge 6 with the torsion spring installed from the toner cartridge fixing seat 5, and placing the toner cartridge 6 to be installed with the torsion spring on top. Repeat steps one to four.

[0041] The specific advantages of this device are as follows: 1. Fully automated assembly: Through the coordinated control of the torsion spring automatic feeding mechanism 1 (including torsion spring vibratory plate 11 and torsion spring blocking structure 12) and the torsion spring rotating installation mechanism 2, the entire process of torsion spring from material storage to posture adjustment (90° rotation) and torsion arm positioning (accuracy ±0.1mm) is fully automated, the assembly time of a single piece is shortened to 15-20 seconds, the work efficiency is increased by 8-10 times, and fatigue errors caused by manual operation are completely eliminated.

[0042] 2. High-precision positioning in confined spaces: The lateral movement structure 22 (repeatability ±0.05mm) and the longitudinal movement structure 23 (Z-axis accuracy ±0.02mm) adopt dual closed-loop servo control, combined with the gear and rack transmission of the torsion spring flipping structure 24 (angle error <±0.5°), to achieve precise alignment of the spiral body in the narrow space (8mm×8mm) at the end of the toner cartridge 6 gear. The installation position deviation is controlled within ±0.15mm, and the yield rate is increased to 98.5%.

[0043] 3. Adaptive control of elastic element: The torsion spring torsion arm adjustment mechanism 3 works in concert with the torsion spring push block 306 (pressure closed-loop control range 5-10N) driven by the push telescopic cylinder 305 and the blocking rod 3072 of the torsion spring positioning seat 307 to apply linear and gradual pressure to the torsion arm of the torsion spring, avoiding plastic deformation caused by traditional manual compression (occurrence rate reduced to below 0.3%), while ensuring that the matching accuracy between the torsion arm unfolding angle and the gear end buckle reaches ±1°.

[0044] 4. Multi-degree-of-freedom attitude synchronous adjustment: The torsion spring flipping structure 24 achieves a precise 90° flip of the spiral body from the first direction a to the third direction c through the rigid linkage between the gear shaft 2410 and the angle adjustment component 2411 (transmission backlash <0.01mm) and the mechanical limit of the buffer 2409. At the same time, the positioning block is clamped by the torsion spring gripper 2408 to ensure that the coaxiality error between the spiral body axis and the spring column of the toner drum 6 is ≤0.1mm.

[0045]

[0046] In summary, the device in this embodiment overcomes the contradiction between precision, efficiency, and reliability in traditional torsion spring installation by integrating multi-axis collaborative motion control, precise mechanical adjustment of elastic elements, and adaptive assembly technology in confined spaces. It provides a standardized, high-speed automated solution for the toner cartridge manufacturing industry and promotes the intelligent manufacturing upgrade of core components of laser printers.

[0047] The above-described specific embodiments are preferred embodiments of the present invention and are not intended to limit the present invention. Any other changes or equivalent substitutions made without departing from the technical solution of the present invention are included within the protection scope of the present invention.

Claims

1. An assembly device for a torsion spring resetting a toner cartridge, characterized in that: The system includes an automatic torsion spring feeding mechanism (1), a spring rotation mounting mechanism (2), a torsion spring torsion arm adjustment mechanism (3), a toner cartridge clamping mechanism (4), and a toner cartridge mounting base (5). The spring rotation mounting mechanism (2) includes a torsion spring flip mounting bracket (21), a transverse moving structure (22), a longitudinal moving structure (23), a torsion spring flipping structure (24), and a torsion spring mounting structure (25). The torsion spring flip mounting bracket (21) is mounted on the top of the toner cartridge clamping mechanism (4). The longitudinal moving structure (23) is connected to the transverse moving structure (22) via the torsion spring flipping structure (24). The torsion spring is installed on the torsion spring flip mounting bracket (21). The torsion spring flip structure (24) and the torsion spring mounting structure (25) are both connected to the longitudinal moving structure (23). The torsion spring automatic feeding mechanism (1) is connected to the torsion spring torsion arm adjusting mechanism (3) through the torsion spring flip structure (24). The torsion drum fixing seat (5) has a torsion drum (6) fixed on it. The torsion drum (6) is clamped in the torsion drum clamping mechanism (4). The torsion spring torsion arm adjusting mechanism (3) is connected to the torsion drum (6) through the torsion spring mounting structure (25).

2. The assembly device for the torsion spring return spring according to claim 1, characterized in that: The torsion spring flipping structure (24) includes a torsion spring flipping component and a torsion spring gripping component, wherein the torsion spring gripping component is connected to the longitudinal moving structure (23) through the torsion spring flipping component.

3. The assembly device for the torsion spring return spring according to claim 1, characterized in that: The torsion spring mounting structure (25) includes a mounting cylinder fixing seat (251), a longitudinal telescopic cylinder (252), a longitudinal sliding base (253), a torsion spring picking rod (254), a torsion spring mounting cylinder (255), and a unloading block (256). The longitudinal telescopic cylinder (252) is mounted on the fixed end of the longitudinal moving structure (23) through the mounting cylinder fixing seat (251). The longitudinal sliding base (253) and the longitudinal telescopic cylinder (252) are connected. The telescopic rod is connected, and one end of the torsion spring mounting cylinder (255) and the torsion spring picking rod (254) are fixedly connected to the longitudinal sliding base (253). The unloading block (256) is connected to the telescopic rod of the torsion spring mounting cylinder (255). The other end of the torsion spring picking rod (254) passes through the unloading block (256). The other end of the torsion spring picking rod (254) corresponds to the torsion spring torsion arm adjustment mechanism (3) and the toner cartridge (6) respectively.

4. The assembly device for the torsion spring return spring according to claim 1, characterized in that: The torsion spring torsion arm adjustment mechanism (3) includes a torsion spring torsion arm adjustment bracket (301), a torsion spring feeding cylinder (302), a torsion spring feeding seat (303), a push cylinder fixing seat (304), a push telescopic cylinder (305), a torsion spring push block (306), and a torsion spring positioning seat (307). The torsion spring feeding cylinder (302), the torsion spring positioning seat (307), and the push cylinder fixing seat (304) are all installed on the torsion spring torsion arm adjustment bracket (301). 01), the torsion spring push block (306) is connected to the push cylinder fixing seat (304) through the push telescopic cylinder (305), one end of the torsion spring feed seat (303) is connected to the torsion spring feed cylinder (302), the torsion spring positioning seat (307) passes through the other end of the torsion spring feed seat (303) and corresponds to the torsion spring push block (306), and the torsion spring positioning seat (307) corresponds to the torsion spring flipping structure (24).

5. The assembly device for the torsion spring return spring according to claim 4, characterized in that: The torsion spring positioning seat (307) includes a positioning pin (3701), a blocking rod (3702) and a torsion spring base plate (3703). The positioning pin (3701) is mounted on the torsion spring torsion arm adjusting bracket (301) through the torsion spring base plate (3703). The blocking rod (3703) is located to the side of the positioning pin (3701). The blocking rod (3702) corresponds to the torsion spring pushing block (306) and the torsion spring flipping structure (24) respectively.

6. The assembly device for the torsion spring return spring according to claim 1, characterized in that: The torsion spring automatic feeding mechanism (1) includes a torsion spring vibratory plate (11), a torsion spring baffle structure (12), and a feeding bracket (13). The torsion spring vibratory plate (11) and the torsion spring baffle structure (12) are both installed on the feeding bracket (13). The discharge end of the torsion spring vibratory plate (11) is connected to the torsion spring baffle structure (12). The discharge end of the torsion spring vibratory plate (11) and the torsion spring baffle structure (12) are both corresponding to the torsion spring flipping structure (24).

7. The assembly device for the torsion spring return spring according to claim 6, characterized in that: The torsion spring baffle structure (12) includes a torsion spring baffle bracket (1201), a torsion spring baffle cylinder (1202), and a torsion spring baffle block (1203). The torsion spring baffle bracket (1201) is installed on the feeding bracket (13). The torsion spring baffle block (1203) is connected to the torsion spring baffle bracket (1201) through the discharge end of the torsion spring baffle cylinder (1202). The torsion spring baffle block (1203) is connected to the torsion spring vibrating plate (11). The torsion spring baffle block (1203) is matched with the torsion spring flipping structure (24).

8. The assembly device for the torsion spring return spring according to claim 1, characterized in that: The drum clamping mechanism (4) includes a drum clamping bracket (401), a drum clamping cylinder (402), and a drum clamping block (403). The drum clamping block (403) is connected to the drum clamping bracket (401) through the drum clamping cylinder (402), and the drum clamping block (403) is located on both sides of the drum (6).

9. The assembly device for the torsion spring return spring according to claim 1, characterized in that: The lateral moving structure (22) includes a lateral fixed base (221), a lateral moving motor (222), a lateral moving threaded shaft (223), a lateral moving slide rail (224), a lateral moving slider (225), and a lateral moving threaded block (226). The lateral moving motor (222) is mounted on the torsion spring flip mounting bracket (21) through the lateral fixed base (221). The lateral moving motor (222) is connected to the lateral moving threaded shaft (223). The lateral moving threaded block (226) is threadedly connected to the lateral moving threaded shaft (223). The lateral moving slide rail (224) is respectively mounted on both sides of the lateral moving threaded shaft (223). The lateral moving slider (225) is slidably connected to the lateral moving slide rail (224). Both the lateral moving slider (225) and the lateral moving threaded block (226) are connected to the longitudinal moving structure (23).

10. The assembly device for the torsion spring return spring according to claim 1, characterized in that: The longitudinal moving structure (23) includes a longitudinal fixed base (231), a longitudinal moving motor (232), a longitudinal moving slide rail (233), a longitudinal moving slider (234), a longitudinal moving threaded block (235), and a longitudinal driving screw (236). The longitudinal moving motor (232), the torsion spring mounting structure (25), and the transverse moving structure (22) are all fixedly connected to the longitudinal fixed base (231). The longitudinal moving motor (232) is connected to the longitudinal driving screw (236). The longitudinal driving screw (236) is threadedly connected to the longitudinal moving threaded block (235). The longitudinal moving slide rail (233) is located on both sides of the longitudinal driving screw (236). The longitudinal moving slide rail (233) is slidably connected to the longitudinal moving slider (234). The longitudinal moving threaded block (235) is connected to the torsion spring flipping structure (24).

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