A brush rotation control device based on motor driving

Abstract

The utility model relates to shoemaking production equipment technical field, concretely is a kind of brush rotation control device based on motor drive, including power transmission assembly, power transmission assembly includes motor, transmission wheel, belt and brush main shaft, motor is fixed on main body board, transmission wheel includes driving synchronous pulley connected with motor output shaft and driven synchronous pulley connected with brush main shaft, belt is sleeved between driving synchronous pulley and driven synchronous pulley, brush main shaft is detachably circumferentially fixed with driven synchronous pulley by pin and circlip.The brush rotation control device based on motor drive in it, driving synchronous pulley is keyed to motor output shaft, driven synchronous pulley is detachably circumferentially fixed with brush main shaft by pin and circlip, synchronous belt transmission transmission ratio is accurate, can avoid the wear and tear abnormal sound of gear engagement, and the detachable structure of pin and circlip makes brush main shaft not need to disassemble entire transmission assembly to be replaced alone, greatly improves equipment operation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of shoe manufacturing equipment technology, specifically to a brush rotation control device based on motor drive. Background Technology

[0002] In the shoe manufacturing process, the gluing and bonding of the upper and sole is a crucial step that determines the quality and durability of the shoe. The core requirements are uniform gluing, precise control of glue usage, and protection of the upper during the gluing process. With the increasing automation in the shoe industry, industrial robots from companies like FANUC are gradually being applied to the gluing process. These robots use 3D cameras to scan and model the shoe upper contour, breaking down the gluing path into 240 precise points, allowing the robot to move according to these points for automated gluing. However, existing brush rotation control devices have revealed several technical shortcomings when adapting to the high-precision operation requirements of robots: Firstly, the power transmission structure lacks flexibility. In existing devices, the transmission connection between the motor and the brush spindle often uses a fixed coupling or an integrated pulley structure. For example, the glue-applying machine disclosed in the utility model patent with authorization announcement number CN214077515U has a glue-applying roller that can be detached and installed via a pivot shaft and a buckle. However, the transmission system relies on gear meshing and does not use a synchronous pulley and a pin or snap ring for circumferential limiting. Although this structure can achieve power transmission, the brush spindle is prone to wear due to long-term contact with glue. The fixed connection method makes the spindle disassembly and assembly process cumbersome, requiring the disassembly of the entire transmission assembly, resulting in low maintenance efficiency. At the same time, some devices use ordinary belt drives, which lack the circumferential limiting design of synchronous pulleys. Slippage is prone to occur during transmission, leading to unstable brush speed and uneven glue thickness, which affects the bonding quality between the shoe upper and the sole. Secondly, glue delivery is prone to hose entanglement issues. In existing glue delivery devices, the connection between the dispensing valve and the brush spindle often involves a direct connection of a fixed hose, such as the rotary joint for sealant hoses with authorization number CN214305772U. While the spindle and housing are connected via a sealing structure, it lacks angle adjustment and cannot adaptively switch rotation states based on hose resistance. When the brush spindle rotates with the motor, the hose rotates synchronously. Since the robot's glue application path needs to cover multiple angles on the shoe upper, the hose is prone to entanglement with other components during rotation. This can not only cause the hose to loosen, leading to glue leakage, but also damage the hose due to excessive entanglement tension, interrupting the glue application process and making it difficult to adapt to the robot's complex point-to-point movement trajectory. Utility Model Content

[0003] The purpose of this invention is to provide a brush rotation control device based on motor drive to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides a motor-driven brush rotation control device, including a power transmission assembly. The power transmission assembly includes a motor, a transmission wheel, a belt, and a brush spindle. The motor is fixed to the main body plate. The transmission wheel includes a driving synchronous pulley connected to the motor output shaft and a driven synchronous pulley connected to the brush spindle. The belt is sleeved between the driving and driven synchronous pulleys. The brush spindle is detachably circumferentially fixed to the driven synchronous pulley by a pin and a snap ring. The motor drives the driving synchronous pulley to rotate, which in turn drives the driven synchronous pulley and the brush spindle to rotate synchronously via the belt drive.

[0005] This configuration fixes the motor to the main body plate, providing a stable power output foundation for transmission. The transmission wheels consist of a driving synchronous pulley (directly connected to the motor output shaft) and a driven synchronous pulley (connected to the brush spindle), which are connected by a belt to form a transmission connection. The brush spindle is detachably circumferentially fixed: the brush spindle and the driven synchronous pulley are connected by a pin and snap ring, achieving both circumferential limiting (ensuring synchronous power transmission without relative rotation) and retaining detachability (separation without damaging the transmission structure). The power transmission path is as follows: the motor drives the driving synchronous pulley to rotate, which in turn drives the driven synchronous pulley to rotate synchronously through the friction of the belt, ultimately driving the brush spindle to rotate.

[0006] Preferably, the assembly also includes a dispensing component, which comprises a glue tank, a dispensing valve, a rotary joint, and a glue tube. The glue tank delivers glue to the dispensing valve under air pressure control. The rotary joint is an adjustable-angle tubular joint. One end of the rotary joint is coaxially and rotatably connected to the end of the brush spindle, and the other end is connected to the outlet of the dispensing valve via the glue tube. When resistance is generated at the connection between the glue tube and the rotary joint, the glue tube and the rotary joint remain stationary to avoid glue tube tangling. The glue flows into the brush spindle sequentially through the dispensing valve, the glue tube, and the rotary joint.

[0007] The glue bucket delivers glue to the dispensing valve via air pressure control (adjusting the pressure inside the bucket to drive the glue flow). The dispensing valve controls the glue flow, and the glue then flows into the brush spindle through the glue tube and rotary joint. The core function of the rotary joint is that it is an adjustable-angle tubular structure. One end is coaxially and rotatably connected to the end of the brush spindle (possessing the potential to rotate with the spindle), while the other end is fixedly connected to the glue tube. The adaptive anti-tangling mechanism is that when the connection between the glue tube and the rotary joint generates resistance due to the robot's multi-angle operation, both can remain stationary (no longer rotating with the brush spindle), preventing the glue tube from being tangled by the spindle.

[0008] Preferably, a brush is mounted on one end of the brush spindle, and a protective cover is detachably mounted on the brush.

[0009] The brush is directly installed at one end of the brush spindle and rotates with the spindle to perform the glue application action; the protective cover function: the protective cover is detachably installed on the brush, covering the brush when not in use, and can be quickly removed when in use; its core function is to physically block external impurities from drying with the glue.

[0010] Preferably, the active synchronous pulley is keyed to the motor output shaft, and the inner hole of the driven synchronous pulley is circumferentially limited and fixed to one end of the brush spindle by a pin and a snap ring.

[0011] The pulley is fixed to the motor output shaft via a key connection, which enables circumferential limiting (preventing the pulley from rotating relative to the motor shaft); the driven synchronous pulley connection: the inner hole of the driven pulley and one end of the brush main shaft are fixed to each other via a pin and a snap ring, which ensures that the driven pulley can drive the main shaft synchronously when rotating, while also preserving the detachability of the main shaft.

[0012] Preferably, the rotary joint includes a fixed end and a rotating end that cooperate with each other. Both the fixed end and the rotating end are hollow cylindrical structures. The rotating end is integrally formed or welded to the end of the brush spindle. The fixed end is detachably connected to the rubber tube by a thread. The fixed end and the rotating end are rotatably connected by a bearing. When the rotating end rotates with the brush spindle, the fixed end and the rubber tube remain stationary.

[0013] It consists of a fixed end and a rotating end, both of which are hollow cylindrical structures (for the flow of glue) and are rotated together by bearings. The connection between the two ends is as follows: the rotating end is integrally formed or welded to the end of the brush spindle (rotating synchronously with the spindle), while the fixed end is detachably connected to the glue tube by threads (keeping it stationary). The dynamic and static fit is achieved by the bearings, which ensure that when the rotating end rotates with the spindle, the fixed end and the glue tube are unaffected and remain stationary, thus achieving a separation state where "the spindle rotates but the glue tube does not."

[0014] Preferably, the brush spindle has an axially extending adhesive channel inside, and the rotating end is connected to the adhesive channel. After the adhesive flows into the adhesive channel through the rotating end, it flows from the outlet of the adhesive channel near the brush to the brush.

[0015] A hollow adhesive channel extending axially is opened inside the brush spindle. One end of the channel is connected to the rotating end of the rotary joint (to receive the adhesive), and the other end is set with an outlet near the brush (to deliver the adhesive to the brush). Adhesive flow path: After the adhesive flows into the adhesive channel from the rotating end, it flows along the axial direction of the channel and finally flows directly to the brush bristles from the outlet near the brush, without the need for an external adhesive tube to connect to the brush.

[0016] Preferably, a floating mechanism is installed at the lower end of the main body plate. The floating mechanism is set with a telescopic cylinder and a baffle is installed on the output shaft to prevent the glue on the brush from flowing to the shoe surface.

[0017] The floating mechanism is installed at the lower end of the main body plate. The core is a telescopic cylinder, and a baffle is installed at the end of the cylinder output shaft. Working logic: The cylinder adjusts the front and back position of the baffle by telescopic movement. The baffle can physically block excess glue on the brush (preventing it from flowing to non-adhesive areas of the shoe upper). At the same time, the flexible telescopic characteristics of the cylinder can make the baffle adapt to the contour of the shoe upper (such as the arch of the shoe) and adjust its position accordingly, avoiding hard contact with the shoe upper.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: This motor-driven brush rotation control device employs a transmission structure of "motor-synchronous pulley-belt-brush spindle," and achieves multiple optimizations through key connection design: Firstly, the active synchronous pulley is keyed to the motor output shaft, while the driven synchronous pulley is detachably and circumferentially fixed to the brush spindle via pins and snap rings. Compared to the gear meshing transmission of CN214077515U, the synchronous belt transmission has a more precise transmission ratio, avoiding wear and abnormal noise associated with gear meshing. Furthermore, the detachable structure of the pins and snap rings allows the brush spindle to be replaced individually without disassembling the entire transmission assembly, significantly improving equipment maintenance efficiency. Secondly, the circumferential limiting design of the synchronous pulley and belt completely solves the slippage problem of ordinary belt drives, ensuring uniform brushing force and speed, preventing uneven glue thickness on the shoe upper due to unstable rotation speed, and improving the pass rate of bonding quality.

[0019] The dispensing assembly achieves stable glue delivery through a triple design: First, the rotary joint adopts a "fixed end - rotating end - bearing" structure, where the rotating end rotates synchronously with the brush spindle, while the fixed end remains stationary with the glue tube. Combined with an adjustable-angle tubular design, it can adapt to multi-directional angle changes during robot glue application, preventing the glue tube from rotating with the spindle. Second, when resistance occurs at the connection between the glue tube and the rotary joint, both can remain stationary, fundamentally solving the problem of loose interfaces and glue leakage caused by glue tube entanglement in existing devices, reducing the glue application interruption rate. Third, an axial glue channel is opened inside the brush spindle, allowing glue to flow directly into the channel through the rotating end and reach the brush. Compared to existing external glue tube delivery methods, this reduces glue residue and waste during delivery, while also avoiding interference from external glue tubes on brush rotation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side view of the present invention. Figure 3 This is a schematic diagram of the transmission wheel in this utility model; The meanings of the labels in the diagram are as follows: 1. Dispensing valve; 2. Motor; 3. Drive wheel; 31. Driving synchronous pulley; 32. Driven synchronous pulley; 33. Belt; 4. Floating mechanism; 5. Rotary joint; 51. Adhesive hose; 6. Brush spindle; 61. Brush; 62. Protective cover; 7. Main plate; 8. Adhesive bucket. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This utility model provides a brush rotation control device based on motor drive, such as... Figure 1 , Figure 2 , Figure 3 As shown, the system includes a power transmission assembly, which comprises a motor 2, a transmission wheel 3, a belt 33, and a brush spindle 6. The motor 2 is fixed on the main body plate 7. The transmission wheel 3 includes a driving synchronous pulley 31 connected to the output shaft of the motor 2 and a driven synchronous pulley 32 connected to the brush spindle 6. The belt 33 is sleeved between the driving synchronous pulley 31 and the driven synchronous pulley 32. The brush spindle 6 is detachably and circumferentially fixed to the driven synchronous pulley 32 by a pin and a snap ring. The motor 2 drives the driving synchronous pulley 31 to rotate, and the driven synchronous pulley 32 and the brush spindle 6 are driven to rotate synchronously via the belt 33.

[0023] Motor 2 is fixed to the main body plate 7, providing a stable power output foundation for transmission; Transmission wheel assembly: Transmission wheel 3 consists of a driving synchronous pulley 31 (directly connected to the output shaft of motor 2) and a driven synchronous pulley 32 (connected to the brush spindle 6). The two are connected by a belt 33 to form a transmission assembly. Detachable circumferential fixation: The brush spindle 6 and the driven synchronous pulley 32 are connected by a "pin + snap ring", which achieves circumferential limiting (ensuring synchronous power transmission without relative rotation) and retains detachability (separation can be achieved without damaging the transmission structure). Power transmission path: Motor 2 drives the driving synchronous pulley 31 to rotate, and the friction of the belt 33 drives the driven synchronous pulley 32 to rotate synchronously, ultimately driving the brush spindle 6 to rotate. Addressing existing transmission defects: Compared to the gear transmission in reference document CN214077515U (cumbersome to disassemble and assemble, prone to wear and abnormal noise), synchronous belt transmission offers precise transmission ratios, eliminates mechanical wear from gear meshing, and provides lower noise; Anti-slip design improves adhesive application stability: The circumferential limiting design of the synchronous pulley and belt 33 completely avoids the slippage problem of ordinary belt transmissions, ensuring stable brush spindle speed and preventing uneven adhesive thickness on the shoe upper due to speed fluctuations; Significantly improved maintenance efficiency: The detachable "pin + snap ring" structure allows the brush spindle 6 to be replaced individually without disassembling the entire transmission assembly (e.g., when the spindle is worn due to adhesive corrosion), significantly reducing maintenance time and equipment downtime costs.

[0024] Specifically, such as Figure 1 , Figure 2 As shown, it also includes a dispensing assembly, which includes a glue tank 8, a dispensing valve 1, a rotary joint 5, and a glue tube 51. The glue tank 8 delivers glue to the dispensing valve 1 under air pressure control. The rotary joint 5 is an adjustable-angle tubular joint. One end of the rotary joint 5 is coaxially and rotatably connected to the end of the brush spindle 6, and the other end is connected to the outlet of the dispensing valve 1 through the glue tube 51. When resistance is generated at the connection between the glue tube 51 and the rotary joint 5, the glue tube 51 and the rotary joint 5 are both in a stationary state to avoid the glue tube 51 from getting tangled. The glue flows into the brush spindle 6 in sequence through the dispensing valve 1, the glue tube 51, and the rotary joint 5.

[0025] The glue bucket 8 delivers glue to the dispensing valve 1 via air pressure control (adjusting the pressure inside the bucket to drive the glue flow). The dispensing valve 1 controls the flow of glue, which then flows into the brush spindle 6 through the glue tube 51 and the rotary joint 5. The core function of the rotary joint 5 is that it is an adjustable-angle tubular structure. One end is coaxially and rotatably connected to the end of the brush spindle 6 (possessing the potential to rotate with the spindle), and the other end is fixedly connected to the glue tube 51. The adaptive anti-winding mechanism is as follows: when the connection between the glue tube 51 and the rotary joint 5 generates resistance due to the robot's multi-angle operation, the two can remain stationary (no longer rotating with the brush spindle 6), preventing the glue tube 51 from being entangled by the spindle. Completely solves the problem of hose tangling: Through the "resistance-triggered stillness" mechanism, the problem of loose joints and glue leakage caused by hose tangling is solved at its root, reducing the damage rate of hose 51 and the glue application interruption rate; Adapts to multi-angle robot operation: The adjustable angle of rotary joint 5, combined with the adaptive stillness function, can match the multi-directional point movement of FANUC robot when applying glue (such as different directions of shoe upper and sole operation), avoiding the hose 51 from interfering with the robot's movement; Improved glue delivery controllability: Pneumatic glue delivery combined with the on / off control of dispensing valve 1 can accurately adjust the glue delivery amount, avoiding excessive or insufficient glue, and improving the consistency of glue application quality.

[0026] Furthermore, such as Figure 1 , Figure 2 As shown, a brush 61 is mounted on one end of the brush spindle 6, and a protective cover 62 is detachably mounted on the brush 61.

[0027] The brush 61 is directly installed on one end of the brush spindle 6 and rotates with the spindle to perform the glue application action; the protective cover function: the protective cover 62 is detachably installed on the brush 61, covering the brush 61 when not in use, and can be quickly removed when in use; its core function is to physically block external impurities from drying with the glue. Extending brush lifespan: When idle, the protective cover 62 prevents dust and debris from entering the gaps of the brush 61, while also preventing residual glue on the surface of the brush 61 from drying and hardening upon contact with air (dried glue will cause the bristles of the brush 61 to stiffen, affecting the uniformity of the glue application). Compared with brushes without a protective structure, the lifespan is significantly extended. Simplifying brush maintenance: The detachable design of the protective cover 62 allows the brush 61 to be cleaned or replaced without disassembling the brush spindle 6 or other components. Simply remove the protective cover 62 to operate, reducing maintenance difficulty and improving equipment operation and maintenance efficiency.

[0028] Furthermore, such as Figure 1 , Figure 2 As shown, the active synchronous pulley 31 is keyed to the output shaft of the motor 2, and the inner hole of the driven synchronous pulley 32 is circumferentially fixed to one end of the brush spindle 6 by a pin and a snap ring.

[0029] The drive pulley 31 is fixed to the output shaft of motor 2 via a key connection. The key connection can achieve circumferential limiting (preventing the pulley from rotating relative to the shaft of motor 2), ensuring that 100% of the power of motor 2 is transmitted to the drive pulley 31. Driven synchronous pulley connection: The inner hole of the driven pulley 32 is fixed to one end of the brush spindle 6 via a pin and a snap ring, which ensures that the driven pulley 32 can synchronously drive the brush spindle 6 when it rotates, while also retaining the detachability of the brush spindle 6. More reliable power transmission: The keyed connection and the double circumferential limiting design of "pin + snap ring" prevent loosening and slippage between the pulley and the motor 2 shaft and the brush spindle 6. Compared with ordinary transition fit (which is prone to loosening due to vibration), the transmission efficiency is improved, ensuring that the speed of the brush spindle 6 and the speed of the motor 2 are precisely matched. Greater maintenance compatibility: The "pin + snap ring" connection between the driven pulley 32 and the brush spindle 6 echoes the detachable design of claim 1. When replacing the brush spindle 6, there is no need to replace the driven pulley 32, reducing maintenance costs. At the same time, the keyed connection of the driving pulley 31 is easy to disassemble and remove, making it convenient to replace the pulley separately after wear.

[0030] Furthermore, such as Figure 1 , Figure 2 As shown, the rotary joint 5 includes a fixed end and a rotating end that cooperate with each other. Both the fixed end and the rotating end are hollow cylindrical structures. The rotating end is integrally formed or welded to the end of the brush spindle 6. The fixed end is detachably connected to the rubber tube 51 by a thread. The fixed end and the rotating end are rotatably connected by a bearing. When the rotating end rotates with the brush spindle, the fixed end and the rubber tube 51 remain stationary.

[0031] The rotary joint consists of a fixed end and a rotating end, both of which are hollow cylindrical structures (for glue flow) and are rotated via bearings. The rotating end is integrally formed or welded to the end of the brush spindle 6 (rotating synchronously with the brush spindle 6), while the fixed end is detachably connected to the glue tube 51 via threads (maintaining a stationary state). The bearings ensure that when the rotating end rotates with the brush spindle 6, the fixed end and glue tube 51 remain unaffected and stationary, achieving a "spindle rotates, glue tube does not rotate" separation state. Completely eliminates hose entanglement: Compared to the rotary joint in the prior art CN214305772U (which lacks a clear dynamic-static separation design and easily causes the hose to rotate), this design achieves complete dynamic-static separation through bearings, keeping hose 51 stationary and structurally eliminating the risk of entanglement; Balances connection stability and maintainability: The threaded connection between the fixed end and hose 51 ensures a secure connection (preventing glue leakage) and facilitates hose 51 replacement; The fixed connection (integral molding / welding) between the rotating end and the brush spindle 6 ensures a sealed glue delivery channel, preventing glue leakage at the joint.

[0032] Furthermore, such as Figure 1 , Figure 2 As shown, the brush spindle 6 has an axially extending adhesive channel inside. The rotating end is connected to the adhesive channel. After the adhesive flows into the adhesive channel through the rotating end, it flows from the outlet of the adhesive channel near the brush 61 to the brush.

[0033] Channel structure: A hollow adhesive channel extending axially is opened inside the brush spindle 6. One end of the channel is connected to the rotating end of the rotary joint 5 (to receive the adhesive), and the other end is set with an outlet near the brush 61 (to deliver the adhesive to the brush 61). Adhesive flow path: After the adhesive flows into the adhesive channel from the rotating end of the rotary joint 5, it flows axially along the channel and finally flows directly from the outlet near the brush 61 to the bristle bundle of the brush 61 without the need for an external adhesive tube to connect to the brush 61. Reduced glue waste and residue: Compared to external glue tubes (which are prone to glue residue and leakage at the joints), the built-in glue channel has a shorter and more enclosed glue delivery path, reducing glue residue and leakage during delivery and lowering glue consumption costs; Avoids glue tube interference with brush: No external glue tube is needed to connect to the brush 61, eliminating physical interference of the glue tube on the rotation of the brush 61 (such as the glue tube hooking the bristles of the brush 61), ensuring smooth rotation of the brush 61 and improving the uniformity of glue application; More precise glue delivery: The glue reaches directly to the root of the brush 61, quickly wetting the bristles and avoiding localized glue shortages on the brush 61 caused by the lag in delivery from the external glue tube, ensuring the quality of glue application.

[0034] Furthermore, such as Figure 1 , Figure 2 As shown, a floating mechanism 4 is installed at the lower end of the main body plate 7. The floating mechanism 4 is set with a telescopic cylinder, and a baffle is installed on the output shaft to prevent the glue on the brush from flowing to the shoe surface.

[0035] Mechanism Composition: The floating mechanism 4 is installed at the lower end of the main body plate 7. The core is a telescopic cylinder, and a baffle is installed at the end of the cylinder output shaft. Working Logic: The cylinder adjusts the front and rear position of the baffle by telescopic movement. The baffle can physically block excess glue on the brush 61 (preventing it from flowing to the non-adhesive area of ​​the shoe upper). At the same time, the flexible telescopic characteristics of the cylinder can make the baffle adaptively adjust its position according to the contour of the shoe upper (such as the arch of the shoe), avoiding hard contact with the shoe upper. Solving the robot's emergency stop problem: Compared to existing rigid blocks (which easily generate large resistance with the shoe upper, causing the robot to stop suddenly) or the spring floating mechanism in comparison document CN107598530B (slow response), the flexible adjustment of the telescopic cylinder can quickly adapt to the angle of the shoe upper (such as the corner of the shoe arch), reducing the contact resistance between the baffle and the shoe upper, significantly reducing the robot's emergency stop rate, and ensuring the continuity of the glue application process; Preventing glue contamination on the shoe upper: The baffle can accurately block excess glue, preventing glue from flowing to non-adhesive areas of the shoe upper (such as the upper and toe), reducing the defect rate of shoe uppers; Adapting to complex shoe upper contours: The telescopic adjustment capability of the cylinder can match the arc shape of the shoe upper after 3D camera scanning and modeling (such as the shoe arch), ensuring that the baffle and the shoe upper always maintain a suitable distance, taking into account both protection and operational adaptability.

[0036] The brush rotation control device based on motor drive of this utility model is used in the following steps: 1. Preparation stage before the task Equipment inspection and debugging: Remove the protective cover 62 on the brush 61 (used to prevent dust and glue drying when not in use), check the condition of the brush bristles; adjust the air pressure of the glue tank 8 (set an appropriate glue delivery pressure) and the on / off sensitivity of the dispensing valve 1 to ensure that there is no blockage in the glue delivery path; Robot data loading: The 3D camera scanned the shoe upper / sole contour modeling data (240 glue application points) and transmitted it to the FANUC robot. The robot positioning device was positioned to ensure that the brush 61 was aligned with the initial glue application points. Floating mechanism preset: Based on the type of shoes to be brushed, the initial stroke of the telescopic cylinder in floating mechanism 4 is preset to keep the baffle at an initial safe distance from the shoe surface (to avoid initial collision). 2. Power start-up and brush rotation stage When motor 2 is started, the motor output shaft drives the active synchronous pulley 31 to rotate; the active synchronous pulley 31 drives the driven synchronous pulley 32 to rotate via belt 33; the driven synchronous pulley 32 drives the brush spindle 6 to rotate synchronously through the circumferential fixing action of "pin + snap ring"; the brush 61 at the end of the brush spindle 6 rotates with the spindle to reach the preset glue application speed (synchronous belt drive ensures stable speed without fluctuation). 3. Glue delivery and glue application start-up stage Adhesive delivery start: The air pressure control of glue tank 8 is turned on, and the glue flows to dispensing valve 1 under air pressure; dispensing valve 1 is opened according to the robot's glue application instruction, and the glue flows into rotary joint 5 through glue tube 51. Anti-tangling adaptation: The robot-driven device moves according to preset points (e.g., applying glue to the shoe upper in the direction of Figure 1.1, applying glue to the shoe sole in the direction of Figure 1.2). If resistance is generated at the connection between the glue tube 51 and the rotary joint 5 due to the change of angle, the fixed end of the rotary joint 5 and the glue tube 51 will immediately remain stationary (the rotating end will continue to rotate with the brush spindle 6) to avoid the glue tube from tangling. The glue flows directly to the brush: The glue flows into the axial glue channel of the brush spindle 6 through the rotary joint 5, flows along the channel to the outlet near the brush 61, and finally wets the brush bristles. During the rotation of the brush 61, the glue is evenly applied to the brushing area of ​​the shoe upper / sole. 4. Adaptive Adjustment Stage of the Floating Mechanism During the process of the robot moving and applying glue at designated points: When the glue is applied to the corner of the shoe upper or the arch area, the change in the shoe upper angle causes the distance between the baffle and the shoe upper to decrease. The telescopic cylinder of the floating mechanism 4 adaptively extends and retracts according to the contact resistance to adjust the position of the baffle (shortening the distance with the shoe upper to avoid hard collision). The baffle always conforms to the contour of the shoe upper, blocking excess glue on the brush 61 (preventing glue overflow from contaminating non-glued areas of the shoe upper). At the same time, due to the flexible adjustment of the cylinder, excessive resistance is avoided to prevent the robot from stopping abruptly, ensuring continuous glue application. 5. Operation Completion and Equipment Reset Phase Stop glue delivery and power: After the robot completes the last glue application point, glue dispensing valve 1 closes to stop glue delivery, motor 2 stops running, and brush 61 stops rotating; Floating mechanism reset: The telescopic cylinder drives the baffle to reset to the initial position and disengage from the shoe upper; Equipment maintenance preparation: The robot drives the device back to the initial position, and the operator installs the protective cover 62 on the brush 61 (to prevent dust from entering), cleans the glue tube 51 and the rotary joint 5 to remove any residual glue (to prevent the glue from drying and clogging), and completes one glue application operation.

[0037] Finally, it should be noted that the electronic components in the dispensing valve 1, motor 2, etc. in this embodiment are all general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. In the idle part of this device, all the above-mentioned electrical components are connected by wires. The specific connection method should refer to the working order of each electrical component in the above working principle to complete the electrical connection. They are all technologies known in the art.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A brush rotation control device based on motor drive, characterized in that: The system includes a power transmission assembly, which includes a motor (2), a transmission wheel (3), a belt (33), and a brush spindle (6). The motor (2) is fixed on the main body plate (7). The transmission wheel (3) includes an active synchronous pulley (31) connected to the output shaft of the motor (2) and a driven synchronous pulley (32) connected to the brush spindle (6). The belt (33) is sleeved between the active synchronous pulley (31) and the driven synchronous pulley (32). The brush spindle (6) is detachably circumferentially fixed to the driven synchronous pulley (32) by a pin and a snap ring. The motor (2) drives the active synchronous pulley (31) to rotate, and drives the driven synchronous pulley (32) and the brush spindle (6) to rotate synchronously via the belt (33).

2. The brush rotation control device based on motor drive according to claim 1, characterized in that: It also includes a dispensing assembly, which includes a glue tank (8), a dispensing valve (1), a rotary joint (5), and a glue tube (51). The glue tank (8) delivers glue to the dispensing valve (1) under air pressure control. The rotary joint (5) is an adjustable-angle tubular joint. One end of the rotary joint (5) is coaxially and rotatably connected to the end of the brush spindle (6), and the other end is connected to the outlet of the dispensing valve (1) through the glue tube (51). When resistance is generated at the connection between the glue tube (51) and the rotary joint (5), the glue tube (51) and the rotary joint (5) are both in a stationary state to avoid the glue tube (51) from getting tangled. The glue flows into the brush spindle (6) in sequence through the dispensing valve (1), the glue tube (51), and the rotary joint (5).

3. The brush rotation control device based on motor drive according to claim 1, characterized in that: A brush (61) is mounted on one end of the brush spindle (6), and a protective cover (62) is detachably mounted on the brush (61).

4. The brush rotation control device based on motor drive according to claim 1, characterized in that: The active synchronous pulley (31) is keyed to the output shaft of the motor (2), and the inner hole of the driven synchronous pulley (32) is circumferentially fixed to one end of the brush spindle (6) by a pin and a snap ring.

5. The brush rotation control device based on motor drive according to claim 2, characterized in that: The rotary joint (5) includes a fixed end and a rotating end that cooperate with each other. Both the fixed end and the rotating end are hollow cylindrical structures. The rotating end is integrally formed or welded to the end of the brush spindle (6). The fixed end is detachably connected to the rubber tube (51) by a thread. The fixed end and the rotating end are rotatably connected by a bearing. When the rotating end rotates with the brush spindle, the fixed end and the rubber tube (51) remain stationary.

6. The brush rotation control device based on motor drive according to claim 5, characterized in that: The brush spindle (6) has an axially extending adhesive channel inside. The rotating end is connected to the adhesive channel. After the adhesive flows into the adhesive channel through the rotating end, it flows from the outlet of the adhesive channel near the brush (61) to the brush.

7. The brush rotation control device based on motor drive according to claim 1, characterized in that: The lower end of the main plate (7) is equipped with a floating mechanism (4). The floating mechanism (4) is set with a telescopic cylinder and the output shaft is equipped with a baffle to block the glue on the brush from flowing to the shoe surface.

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