Sheet metal rust removal disc brush drilling and tufting machine

Abstract

This invention discloses a rust removal disc brush drilling and bristle implantation machine for sheet metal, belonging to the technical field of brush manufacturing equipment. The machine's drilling and implantation worktable includes X, A, and B axes and a worktable clamp. The A-axis of the worktable is equipped with a fan-shaped support plate and an A-axis locking mechanism, while the B-axis has a B-axis disc. The clamp is used to hold the circular brush disc. The machine head includes X and Z axes, a spindle, a drilling mechanism, a punch drive mechanism, an implantation head, and a bristle cleaning mechanism. The bristle assembly at the lower end of the implantation head is equipped with a bristle guide roller, converting the sliding friction between the abrasive bristles and the implantation head into rolling friction. The punch drive mechanism is driven by a punch cam and an eccentric wheel to reciprocate the punch assembly. The bristle cleaning mechanism can perform online cleaning of the bristle center channel without stopping the machine. This tufting machine significantly improves the wear resistance and implantation speed of the implantation head, achieves online cleaning of the bristle center channel, and can stably complete large-angle oblique bristle implantation for large-size disc brushes.

Description

Technical Field

[0001] This invention relates to a disc brush tufting equipment, and more particularly to a disc brush drilling and tufting machine for rust removal on sheet metal, belonging to the technical field of brush manufacturing equipment. Background Technology

[0002] Bristle implantation machines are widely used for bristle implantation on brushes used in daily-use brushes and industrial brushes. Traditional five-axis drilling and implantation machines feature a multi-station brush body clamping assembly. This assembly contains multiple brush body clamps. After the brush plate is held by these clamps, the bristle surfaces are positioned directly below the drill bit or implantation nozzle for drilling and bristle implantation. In addition to its own oscillation, the brush body clamping assembly can also perform swinging, left-right, forward-backward, and lifting movements.

[0003] In a traditional five-axis tufting machine, the machine head is mounted on top of the frame and its position remains fixed. The frame is connected to the rear of the base and extends upwards. All five axes of movement are achieved by the worktable. The X-axis translation mechanism is supported on the base via guide rails. The X-axis translation base is equipped with a Z-axis lifting mechanism. The Z-axis lifting slide is equipped with a Y-axis translation mechanism. The Y-axis translation mechanism is equipped with an A-axis swing mechanism and a B-axis rotation or swing mechanism.

[0004] However, traditional five-axis tufting machines have the following shortcomings: the brush body extends along the front-to-back direction, and when processing long brush bodies, the rear frame is prone to interference with the brush body; when processing the two ends of a long brush body, the Y-axis slide needs to move the A-axis swing mechanism forward or backward as a whole, so that the holes at both ends of the brush body are below the tufting nozzle. The tufting nozzle is far away from the A-axis drive shaft in the front-to-back direction, resulting in severe offset force during tufting, and the equipment vibrates significantly when processing brush bodies longer than 1 meter; the long brush body achieves five-axis movement entirely on the worktable, resulting in a heavy and bulky worktable, which is not conducive to processing large long brush bodies.

[0005] To address the aforementioned issues, Chinese utility model patent CN212938617U discloses a "five-axis gantry tufting machine." The base has columns fixed to both sides of its rear, with the tops of the columns connected by a crossbeam. An X-axis drive mechanism is mounted on the crossbeam, including an X-axis slide plate at the front and a tufting head mounted on it. Parallel vertical support plates are fixed to both sides of the front of the base. Liftable Z-axis slide plates are located on the inner sides of the two vertical support plates. A-axis rocker plates are hinged to the inner walls of the two Z-axis slide plates. Y-axis slide plates that can move forward and backward are located on the upper inner walls of the two A-axis rocker plates. A B-axis worktable is connected between the two Y-axis slide plates, and a brush fixture is mounted on the B-axis worktable. This structure ensures that the relative position of the tufting nozzle and the A-axis drive mechanism remains unchanged in the forward and backward direction when processing the ends of a long brush, improving the stress distribution and enhancing the stability of the equipment.

[0006] However, the aforementioned five-axis gantry flocking machine still has the following structural limitations: Firstly, the bristle implantation nozzle of the head is a one-piece metal component, and the bristles slide directly against the inner wall of the nozzle when passing through the central hole. When processing abrasive bristles with hard particles such as diamond embedded in the surface, the hard particles cause severe scratching and wear on the inner wall of the nozzle, which greatly shortens the service life of the nozzle. When processing brush plates with a large number of holes, it may even be impossible to complete the complete implantation of a single product, requiring frequent machine shutdowns to replace the nozzle.

[0007] Secondly, during the bristle implantation process, the diamond particles and bristle debris that fall off the bristle surface gradually accumulate on the inner wall of the central channel of the implantation nozzle, reducing the effective inner diameter of the nozzle and increasing the resistance to bristle passage. However, because the central channel of the implantation nozzle is narrow and deep, and the nozzle is fixedly installed inside the machine head, its inner wall cannot be cleaned online while the equipment is running. It must be stopped, disassembled, and manually cleaned or replaced directly.

[0008] Thirdly, the A-axis rocker plate of the machine's worktable is mounted on the Z-axis slide plates on both sides of the worktable, and it swings back and forth. Although the B-axis worktable can hold disc brushes, the distance between the two workstations is limited by the worktable's own lifting mechanism and the support structures on the left and right sides, making it difficult to accommodate large-diameter disc brushes. In addition, when large-angle oblique bristle implantation is required, if the back-and-forth swing angle of the worktable is too large, the wire grooves on the opposite end faces of the lower end of the bristle implantation nozzle cannot simultaneously contact the brush plate surface, causing the U-shaped wire to be suspended on one side and fall out of the brush hole during the stamping process.

[0009] Fourth, its head punch is driven by a double eccentric wheel mechanism, which can only produce a motion time trajectory that approximates a sine curve. The displacement, speed and acceleration of the punch are difficult to adjust flexibly according to the requirements of the tufting process during the working stroke and return stroke, which limits the further increase of the tufting frequency.

[0010] Therefore, there is an urgent need for a rust removal disc brush drilling and bristle implantation machine that can stably implant abrasive brush bristles, implant bristles at large angles on large-sized disc brushes, and achieve faster bristle implantation speed. Summary of the Invention

[0011] The purpose of this invention is to overcome the above-mentioned deficiencies in the prior art and provide a sheet metal rust removal disc brush drilling and bristle implantation machine. It aims to solve the technical problems of severe wear of the bristle nozzle, inability to clean the nozzle channel online, difficulty in large-size disc brush bristle implantation at large angles, and limited bristle implantation speed in the existing equipment during abrasive brush bristle implantation operations.

[0012] To achieve the above objectives, the technical solution adopted by the present invention is: a rust removal and drilling machine for sheet metal, comprising a base for the machine, a vertical frame for the machine fixedly connected to the rear side of the base, a drilling and planting worktable disposed on the front side of the base, and a machine head installed on the upper part of the vertical frame. Its specific structure is as follows: The drilling and planting worktable includes a worktable X-axis, a worktable A-axis, a worktable B-axis, and a worktable fixture.

[0013] The X-axis of the worktable includes a worktable X-axis guide rail fixed to the upper front surface of the hair grafting machine base and extending horizontally, a worktable X-axis bracket slidably supported on the worktable X-axis guide rail, and a worktable X-axis cylinder fixed to the hair grafting machine base. The piston rod end of the worktable X-axis cylinder is fixedly connected to the worktable X-axis bracket and is used to drive the worktable X-axis bracket to reciprocate along the worktable X-axis guide rail.

[0014] The A-axis of the worktable includes an A-axis motor fixedly mounted on the X-axis bracket of the worktable, an A-axis reducer driven by the A-axis motor, an A-axis bracket plate fixedly connected to the output shaft of the A-axis reducer, and a fan-shaped support plate fixed to the bottom of the A-axis bracket plate. The arc-shaped bottom surface of the fan-shaped support plate is supported on multiple support rollers, and the support rollers are mounted on an A-axis fixing seat fixed on the X-axis bracket of the worktable. The A-axis fixing seat is also provided with an A-axis locking mechanism for locking the fan-shaped support plate.

[0015] The B-axis of the worktable includes a B-axis reducer fixed to the A-axis support plate, a B-axis motor that is drivenly connected to the input end of the B-axis reducer, and a B-axis disc that is fixedly connected to the output shaft of the B-axis reducer.

[0016] The worktable fixture is mounted on the B-axis disk and is used to hold the circular brush disk.

[0017] The machine head includes a machine head X-axis, a machine head Z-axis, a spindle, a drilling mechanism, a punch drive mechanism, a bristle implantation head, and a bristle cleaning mechanism.

[0018] The X-axis of the machine head includes a machine head X-axis guide rail fixed to the upper front side of the vertical frame of the hair grafting machine and extending in a horizontal direction, a machine head X-axis vertical plate slidably supported on the machine head X-axis guide rail, and a machine head X-axis motor that drives the machine head X-axis vertical plate to reciprocate along the machine head X-axis guide rail.

[0019] The machine head Z-axis includes a machine head Z-axis vertical plate that is slidably supported on the front end face of the machine head X-axis vertical plate and a machine head Z-axis motor that drives the machine head Z-axis vertical plate to move vertically. The machine head frame is fixedly installed on the front side of the machine head Z-axis vertical plate.

[0020] The main shaft is arranged horizontally and is rotatably supported on the machine head frame by bearings. One end of the main shaft is connected to the main shaft motor for transmission.

[0021] The bristle implantation head is fixedly installed on the machine head frame. The lower end of the bristle implantation head is provided with a bristle nozzle assembly. The bristle nozzle assembly has a bristle nozzle central channel for the bristles to pass through and a bristle feeding channel located in front of the bristle nozzle central channel and intersecting with the bristle nozzle central channel. Bristle guide rollers are respectively provided on the left and right sides of the bristle nozzle central channel below the bristle feeding channel.

[0022] The punch drive mechanism includes a punch cam and a punch eccentric wheel driven by a main shaft. The punch cam and the punch eccentric wheel together drive the punch assembly to reciprocate vertically.

[0023] The nozzle cleaning mechanism includes a Z-axis cleaning cylinder, a Z-axis cleaning guide rail, a Z-axis cleaning bracket, a B-axis rotary cylinder, a cleaning swing arm, and an oil-receiving funnel. The Z-axis cleaning cylinder is fixedly installed on the machine head frame, and the Z-axis cleaning guide rail is fixedly installed vertically on the machine head frame. The piston rod end of the Z-axis cleaning cylinder is fixedly connected to the Z-axis cleaning bracket, and the Z-axis cleaning bracket is slidably supported on the Z-axis cleaning guide rail. The B-axis rotary cylinder is fixedly installed below the Z-axis cleaning bracket. The output shaft of the B-axis rotary cylinder is set downward and fixedly connected to one end of the cleaning swing arm. An oil-receiving funnel is fixedly installed at the other end of the cleaning swing arm. The upper port of the oil-receiving funnel is aligned with the lower port of the nozzle assembly in the cleaning state.

[0024] Through the above technical solution, the present invention achieves the following beneficial effects compared with the prior art: 1. Significantly improves the wear resistance of the bristle implantation head, achieving stable bristle implantation for abrasive brushes. This invention adds a set of bristle guide rollers to the left and right halves of the bristle nozzle at the lower end of the implantation head, transforming the sliding friction between the original abrasive brush bristles and the inner side of the implantation head into rolling friction. When the abrasive brush bristles (with hard particles such as diamond embedded in their surface) pass through the implantation head, the hard particles on the bristle surface form rolling contact with the bristle guide rollers, effectively avoiding direct scraping of the inner wall of the implantation head by the hard particles, thus significantly reducing the wear rate of the implantation head. Actual testing shows that with this invention, the service life of the implantation head is extended by more than three times compared to the traditional structure. It can stably complete the complete bristle implantation operation of abrasive brush plates with more than 200 holes, fundamentally solving the problem of frequent downtime and replacement caused by rapid wear of the implantation head, and significantly improving the production efficiency and product yield of abrasive brushes.

[0025] 2. Achieve online cleaning of the nozzle center channel, avoiding time loss caused by additional cleaning during downtime. The nozzle cleaning mechanism of this invention, through the coordinated action of the Z-axis cleaning cylinder, the B-axis rotary cylinder, and the cleaning swing arm, can accurately deliver the oil receiving funnel to the bottom of the tufting head without stopping the equipment, and inject cleaning oil into the nozzle center channel to wash away contaminants such as diamond particles and hair attached to the inner wall of the tufting head online. Compared with the traditional method that requires stopping the machine to remove the tufting head for manual cleaning or direct replacement, this invention can complete the cleaning of the tufting head without interrupting production. The cleaning time for a single cleaning is reduced from tens of minutes to 30 seconds, and it can be automatically executed between tufting processes, greatly reducing the failure rate of tufting head blockages such as hair jamming and needle breakage, reducing manual intervention and downtime losses, and is particularly suitable for the continuous production of large batches of abrasive brush bristles.

[0026] 3. Capable of performing large-angle oblique bristle implantation on large-sized disc brushes. This invention employs a dual X-axis structure (worktable X-axis and head X-axis), coupled with independent lifting of the head Z-axis. This eliminates the need for the worktable to perform lifting, saving space on both sides of the worktable and increasing the spacing between workstations, thus accommodating large-sized circular disc brushes. Simultaneously, the dual X-axis structure effectively utilizes the overall machine's lateral space, further increasing the workstation spacing without changing the overall machine width, providing ample space for bristle implantation on large-sized disc brushes. Furthermore, the worktable's A-axis uses a left-right swing mechanism, ensuring that the wire grooves on the opposing ends of the bristle implantation head simultaneously contact the brush plate, preventing the wire from dangling and falling out during large-angle oblique bristle implantation. The bottom of the worktable's A-axis is supported by multiple sets of support rollers on the lower arc surface of a fan-shaped support plate. Combined with anti-slip backing on the front and rear ends of the fan-shaped support plate and anti-slip pads driven by anti-slip cylinders, the A-axis can be reliably locked after swinging to the desired angle, effectively resisting the impact of bristle implantation and preventing the worktable from tipping over. The combined effect of the above structures enables the present invention to stably complete the large-angle oblique bristle implantation operation of large-size disc brushes, filling the gap in the field of existing equipment.

[0027] 4. Significantly Improved Embedding Speed. This invention uses a punch cam and single eccentric wheel mechanism to drive the punch instead of the traditional double eccentric wheel mechanism. The traditional double eccentric wheel mechanism can only produce a motion time trajectory that approximates a sine curve, and its acceleration and velocity curves are difficult to adjust according to process requirements, resulting in wasted time and punch stroke. However, the punch cam and single eccentric wheel mechanism of this invention, through the flexible design of the punch cam profile curve, can precisely control the motion law of the punch at different stages. It achieves faster acceleration during the embedding stage to shorten the embedding time, and smoother deceleration during the return stage to reduce impact and vibration, thereby achieving a higher embedding frequency. At the same time, this mechanism has a compact structure, achieving a large punch stroke with a smaller structural size, providing structural assurance for further improving the embedding speed.

[0028] 5. Achieves deep bristle implantation in large-diameter holes with secure and reliable bristle root locking. The inner cavity of the blade core box of this invention is divided into left and right halves. The blade core rod guide groove and the punch guide groove are separately set and independently guided. The opening width of the punch guide groove can be flexibly designed to meet the guiding requirements of wider punches. Longer wires can be used to form larger openings to wrap more bristles, which can stably complete deep bristle implantation in large-diameter holes with secure and reliable bristle root locking.

[0029] 6. Significant Overall Benefits. The aforementioned beneficial effects work synergistically, enabling this invention to efficiently and stably complete the entire process of drilling and bristle implantation for rust removal disc brushes on sheet metal. It is particularly suitable for the large-scale production of high-end industrial brush products such as abrasive brushes and large-size disc brushes. Compared with existing technologies, this invention significantly improves key indicators such as bristle head lifespan, continuous equipment operation time, range of processable disc brush sizes, and bristle implantation speed, effectively reducing equipment maintenance costs and downtime losses, and improving production efficiency and product quality. Attached Figure Description

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The drawings are provided for reference and illustration only and are not intended to limit the present invention.

[0031] Figure 1 This is a front view of a sheet metal rust removal disc brush drilling and fuzzing machine according to the present invention. Figure 2 for Figure 1 The left view; Figure 3 for Figure 1 Top view; Figure 4 for Figure 1 A three-dimensional image; Figure 5 for Figure 1 A three-dimensional view from another direction; Figure 6 This is a 3D view of the aircraft head. Figure 7 A 3D view of the nozzle cleaning mechanism; Figure 8 A perspective view of the punch drive mechanism and punch assembly; Figure 9 This is a front view of the drilling and planting workbench in this invention; Figure 10 for Figure 9 The left view; Figure 11 for Figure 9 Top view; Figure 12 for Figure 9 A three-dimensional image; Figure 13A 3D view of the tufted head; Figure 14 This is a three-dimensional view of the tufted head from another direction; Figure 15 A cross-sectional view of the brush guide roller; Figure 16 A cross-sectional view of the installation of the spherical plain bearing; Figure 17 This is a three-dimensional view of the oil collecting funnel at its highest position.

[0032] In the picture: 1. Base of the tufting machine; 2. Vertical frame of the tufting machine; 3. Drilling and planting worktable; 3a. Worktable X-axis; 3a1. Worktable X-axis cylinder; 3a2. Worktable X-axis guide rail; 3a3. Worktable X-axis bracket; 3a31. Worktable X-axis base plate; 3a32. Worktable X-axis vertical plate; 3a4. Hydraulic buffer; 3b. Worktable A-axis; 3b1. A-axis motor; 3b11. A-axis motor pulley; 3b2. A-axis belt; 3b3. A-axis reducer; 3b31. A-axis drive pulley; 3b32. A-axis reducer output shaft; 3b4. A-axis support plate; 3b5. Fan-shaped support plate; 3b6. A-axis fixed seat; 3b7. Anti-slip backrest; 3b8. Anti-slip cylinder bracket; 3b9. Anti-slip cylinder; 3b10. Anti-slip pad; 3b20. Support roller; 3c. Worktable B-axis; 3c1. B-axis motor; 3c2. B-axis reducer; 3c21. B-axis output shaft; 3c3. B-axis disc; 3c4. Zero return sensor; 3d. Workbench fixture; 3d1. Fixture cylinder; 3d2. Radial slide plate; 3d3. Brush body gripper; 3d4. Circular brush disc; 4. Machine head; 4a. Machine head X-axis; 4b. Machine head Z-axis; 4c. Machine head drive; 4c1. Machine head frame; 4c2. Spindle; 4d. Drilling mechanism; 4e. Hair removal mechanism; 4f. Nozzle cleaning mechanism; 4f1. Z-axis cleaning cylinder; 4f2. Z-axis cleaning guide rail; 4f3. Z-axis cleaning bracket; 4f4. B-axis rotary cylinder; 4f5. Cleaning swing arm; 4f6. Oil receiving funnel; 4g. Wire feeding mechanism; 4h. Wire cutting and bending drive mechanism; 4i. Wire grafting head drive mechanism; 4j. Punch drive mechanism; 4j1. Punch rocker arm; 4j2. Fixed shaft in the machine head; 4j3. Roller; 4j4. Punch cam; 4j5. First fulcrum shaft; 4j6. Punch drive plate; 4j7. Second fulcrum shaft; 4j8. Punch swing wheel; 4j9. Punch eccentric wheel; 4j10. Punch connecting rod; 4k. Embedded head; 4k1. Blade core box assembly; 4k1a. Blade core box; 4k1b. Middle pad plate; 4k1c. Rear pad plate; 4k1d. Front pad plate; 4k1e. Right cover plate of blade core box; 4k1f. Punch rear guard plate; 4k1g. Punch front guard plate; 4k1k. Left cover plate of blade core box; 4k1m. Cutting blade; 4k2. Punch assembly; 4k2a. Punch drive rod; 4k2b. Punch; 4k3. Shredder and bend assembly; 4k3a. Shredder and bend hinge seat; 4k3b. Needle roller bearing; 4k3c. Swing arm center hinge shaft; 4k3d. Forming swing arm; 4k3e. Swing arm drive pin; 4k3f. Spherical bearing; 4k3h. Forming hook; 4k3j. Forming hook pressure plate; 4k3k. Forming hook screw; 4k3m. Shredder cutter washer; 4k3n. Shredder cutter; 4k4. Nozzle assembly; 4k4a. Right half of the nozzle; 4k4b. Left half of the nozzle; 4k4c. Front upper opposite edge of the nozzle; 4k4d. Front lower opposite edge of the nozzle; 4k4e. Rear opposite edge of the nozzle; 4k4f. Roller shaft set screw; 4k4g. Roller center shaft; 4k4h. Brush guide roller; 4k5. Blade core rod assembly; 4k5a. Blade core rod; 4k5b. Blade core rod drive shaft; 4k5c. Punch guide plate; 4m. bobbin mechanism; 4n. bobbin box. Detailed Implementation

[0033] In the following description of the present invention, the terms "upper," "lower," "front," "rear," "left," "right," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not mean that the device must have a specific orientation.

[0034] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0035] like Figures 1 to 17 As shown, the present invention provides a sheet metal rust removal disc brush drilling and tufting machine, which includes a tufting machine base 1, a tufting machine vertical frame 2, a drilling and tufting worktable 3, and a machine head 4.

[0036] like Figures 9 to 12 As shown, the drilling and planting worktable 3 of the present invention includes a worktable X-axis 3a, a worktable A-axis 3b, a worktable B-axis 3c, and a worktable fixture 3d.

[0037] X-axis of the worktable 3a: A vertically extending vertical frame 2 of the tufting machine is fixedly connected to the rear side of the tufting machine base 1. Two horizontally extending X-axis guide rails 3a2 are fixed to the upper front surface of the tufting machine base 1. The X-axis support 3a3 includes a horizontally arranged X-axis base plate 3a31 and a vertical X-axis vertical plate 3a32 connected to the rear side of the base plate. The bottom of the base plate is slidably connected to the guide rails via a slider. The X-axis of the worktable 3a is driven by an X-axis cylinder 3a1, which is fixed to the tufting machine base 1. The end of its piston rod is fixedly connected to the X-axis vertical plate 3a32. The cylinder-driven method is simple in structure, low in cost, and provides sufficient thrust and stable positioning, making it particularly suitable for the frequent left and right movement of the worktable during large-size disc brush tufting. Hydraulic buffers 3a4 are fixed on the left and right sides of the upper front surface of the base 1 of the hair grafting machine. The buffer heads of the hydraulic buffers 3a4 correspond to the two end faces of the X-axis base plate 3a31 of the worktable, and are used to absorb the impact when the shifting is close to the end of the stroke.

[0038] The worktable A-axis 3b: Two workstations are provided on both the worktable X-axis vertical plate 3a32 and the worktable X-axis base plate 3a31. An A-axis reducer 3b3 (preferably an RV reducer) is mounted on the back of the vertical plate of each workstation, with an A-axis drive wheel 3b31 mounted on its input shaft. An A-axis motor 3b1 is installed between the reducers of the two workstations, with an A-axis motor pulley 3b11 at the motor output end. This pulley is connected to the drive wheels on both sides via an A-axis belt 3b2, enabling synchronous driving of both workstations at the same tilt angle by the same motor, meeting the needs of mass production. The A-axis reducer output shaft 3b32 passes through the vertical plate and is fixedly connected to the upper part of the vertical plate of the L-shaped A-axis support plate 3b4. A downwardly extending fan-shaped support plate 3b5 is fixed to the bottom of the horizontal section of the support plate. The arc-shaped bottom surface of this support plate rests on multiple support rollers 3b20, which are mounted on an A-axis fixed seat 3b6. The bottom of the fixed seat is fixed to the worktable X-axis base plate 3a31. Multiple sets of support rollers are distributed along the arc surface of the fan-shaped support plate, which not only support the A-axis and all the loads above, but also allow it to rotate smoothly around the swing center, which significantly reduces the bending moment on the output bearing of the A-axis reducer and improves the stability and life of long-term operation.

[0039] The A-axis mounting base 3b6 is also equipped with an anti-slip locking mechanism, including an anti-slip support 3b7 and an anti-slip cylinder bracket 3b8 fixed to the mounting base. An anti-slip cylinder 3b9 is mounted on the bracket, with its piston rod end connected to an anti-slip pad 3b10. The anti-slip support 3b7 abuts against one side (front) of the fan-shaped support plate 3b5, and the anti-slip pad 3b10 corresponds to the other side (rear). When the A-axis motor drives the reducer via a belt, causing the A-axis bracket plate and the B-axis disc to swing around the A-axis to the desired tilt angle, the anti-slip cylinder pushes the anti-slip pad forward, clamping the fan-shaped support plate between the anti-slip support and the anti-slip pad, forming a rigid bidirectional lock. This locking structure effectively resists the impact force generated during drilling and tufting, preventing angle shift or tipping during large-angle tufting, and ensuring consistent tufting accuracy.

[0040] Worktable B-axis 3c: A B-axis reducer 3c2 (preferably a worm gear reducer with self-locking function) is fixed on the A-axis support plate 3b4, located above the sector-shaped support plate 3b5. The input end of the B-axis reducer is driven by the B-axis motor 3c1, and the upper end of its output shaft (worm gear shaft) 3c21 is fixedly connected to the center of the B-axis disc 3c3. A zero-return sensor 3c4 is fixed on the A-axis support plate 3b4 to monitor whether the B-axis has rotated one revolution, ensuring accurate circumferential indexing positioning.

[0041] The worktable fixture 3d consists of three clamping cylinders 3d1 (arranged symmetrically in an equilateral triangular star shape) evenly distributed circumferentially on the bottom surface of the B-axis disk 3c3. The outer end of the piston rod of each cylinder is connected to a radial sliding plate 3d2, which is embedded in the radial groove and guide rail of the disk. The outer end of each sliding plate is connected to an upwardly raised brush gripper 3d3. The three grippers move radially synchronously to achieve rapid centering and clamping of the circular brush disk 3d4.

[0042] Working principle of the drilling and planting worktable: After the circular brush disk 3d4 is placed on the B-axis disk 3c3, the clamping cylinder 3d1 drives the radial sliding plate 3d2 and the gripper 3d3 to move radially inward until the circular brush disk 3d4 is clamped and fixed.

[0043] During the repositioning process, the X-axis cylinder 3a1 of the worktable pulls the X-axis bracket 3a3 of the worktable to move left and right along the guide rail, coordinating with the X-axis movement of the machine head (the cylinder stroke is less than the station spacing, and the remaining stroke is compensated by the X-axis motor of the machine head), so that the B-axis disc 3c3 of the dual station is aligned with the drill bit and the tufting head respectively; the hydraulic buffer 3a4 provides buffering at the end of the stroke to avoid impact.

[0044] When tilting, the A-axis motor 3b1 synchronously drives the A-axis reducers of the two stations via a belt, causing the A-axis support plate 3b4 and the fan-shaped support plate 3b5 to rotate around the A-axis. This, in turn, causes the B-axis disc 3c3 and the circular brush disc 3d4 to tilt to a set angle (which can be continuously and precisely adjusted within a 50° range). Once in position, the anti-slip cylinder immediately locks, and then oblique hole drilling and oblique bristle implantation are performed, causing the bristles on the outer periphery of the circular brush disc 3d4 to extend outward in a radial pattern, expanding the cleaning area.

[0045] During indexing, the B-axis motor 3c1 drives the worm gear reducer, causing the B-axis output shaft 3c21 to rotate the B-axis disk 3c3 in a stepping motion, thus achieving the hole distribution and bristle implantation on the full circumference of the circular brush disk 3d4. The dual-station design allows for independent control of the B-axis rotation, adapting to the processing of products with different diameters or hole distributions, greatly improving process flexibility.

[0046] The machine head 4 mainly includes the machine head X-axis 4a, the machine head Z-axis 4b, and the machine head drive assembly 4c, wherein the machine head drive assembly includes the spindle 4c2 and the spindle motor; in addition, the machine head 4 also integrates components such as the drilling mechanism 4d, the hair removal mechanism 4e, the hair cleaning mechanism 4f, the wire feeding mechanism 4g, the wire cutting and bending drive mechanism 4h, the hair insertion head drive mechanism 4i, the punch drive mechanism 4j, the hair insertion head 4k, the hair shuttle mechanism 4m, and the hair box 4n.

[0047] Two horizontally extending X-axis guide rails are fixed to the upper front side of the vertical frame 2 of the tufting machine. The back of the X-axis vertical plate of the machine head is slidably supported on the X-axis guide rails by a slider. An X-axis motor is installed between the two X-axis guide rails, which drives the X-axis screw to rotate. The X-axis screw is threadedly engaged with the X-axis nut, which is fixedly installed on the back of the X-axis vertical plate. When the X-axis screw rotates, it drives the X-axis nut and the X-axis vertical plate to move horizontally. Through the dual X-axis linkage between the X-axis 4a of the machine head and the X-axis 3a of the worktable, the left and right space of the entire machine can be fully utilized, effectively expanding the processing range.

[0048] Two vertically extending Z-axis guide rails are fixed to the rear end of the Z-axis vertical plate of the machine head. The back of the Z-axis guide rails is slidably supported on the front end of the X-axis vertical plate of the machine head via sliders. A Z-axis motor is installed on the back of the Z-axis vertical plate between the two Z-axis guide rails. The Z-axis nut is fixedly installed on the front end of the X-axis vertical plate. The Z-axis motor drives the Z-axis screw to rotate. Since the Z-axis nut is fixed, the Z-axis screw rotates while simultaneously causing the Z-axis vertical plate to move up and down. The Z-axis 4b of the machine head independently undertakes the lifting function, eliminating the need for a lifting mechanism on the worktable and saving space on both sides of the worktable, thus providing a larger workstation spacing for large-sized disc brushes.

[0049] The machine head frame 4c1 is fixedly mounted on the front side of the Z-axis vertical plate of the machine head. A main shaft 4c2 is located on the upper part of the machine head frame 4c1. The main shaft 4c2 is horizontally positioned and supported at both ends by bearings on the machine head frame 4c1. A main shaft pulley is fixedly mounted at one end of the main shaft 4c2. The main shaft motor is fixedly mounted on the machine head frame 4c1, and a drive pulley is mounted on the output shaft of the main shaft motor. The drive pulley is connected to the main shaft pulley via a belt. When the main shaft motor is powered on, it drives the main shaft 4c2 to rotate via belt drive, providing power to the drilling mechanism 4d, the deburring mechanism 4e, the punch drive mechanism 4j, etc.

[0050] The machine head frame 4c1 is also equipped with a drilling mechanism 4d, a bristle-removing mechanism 4e, a bristle cleaning mechanism 4f, a wire feeding mechanism 4g, a wire cutting and bending drive mechanism 4h, a bristle-planting head drive mechanism 4i, a punch drive mechanism 4j, a bristle-planting head 4k, a bristle-shucking mechanism 4m, and a bristle box 4n. Among them, the wire feeding mechanism 4g is used to feed the iron wire (or other metal wire) to a set length; the wire cutting and bending drive mechanism 4h drives the wire cutting blade 4k3n and the forming hook 4k3h inside the bristle-planting head 4k to cut the fed iron wire and bend it into a U-shape with the opening facing downwards; the bristle-shucking mechanism 4m is used to transport the bristles (brush filaments) to the bristle-planting position; and the bristle box 4n is used to hold the bristle raw materials that have been cut into the same length.

[0051] The 4D drilling mechanism is used to drill tufting holes on a circular brush disc 3D4. It mainly includes a drilling cam, a drilling rocker arm, a drilling connecting rod, a drilling slide, a drilling bracket, an electric drill spindle, and a drill bit.

[0052] Drilling cams are fixedly mounted at both ends of the spindle 4c2. The headstock frame 4c1 has a left and right fixed spindle. The rear ends of two drilling rocker arms are hinged to the left and right fixed spindles, respectively. The middle portions of the two rocker arms abut against the circumferential surfaces of their corresponding drilling cams via rollers. Drilling connecting rods are hinged to the front ends of the two rocker arms, and their lower ends are hinged to the upper ends of two drilling slides. The backs of the drilling slides are slidably supported on drilling guides via sliders. The drilling guides extend vertically and are fixedly mounted on the headstock frame 4c1. A drilling bracket is fixed to the lower part of the front face of each drilling slide. The middle of the drill spindle is fixedly mounted on the drilling bracket. The drill spindle is vertically oriented, and a drill bit is connected to its lower end via a clamp. A drilling dust hood is provided around the drill bit, and this dust hood is connected to an external negative pressure dust removal system via a pipe.

[0053] The working principle of the drilling mechanism is as follows: After the electric drill spindle is powered on, it rotates at high speed, driving the drill bit at the lower end to rotate synchronously at high speed. The drill bit performs drilling operations on the upper surface of the circular brush disk 3d4. The debris generated during drilling is promptly sucked away by the drilling dust hood to avoid dust pollution. Simultaneously, the spindle motor drives the spindle 4c2 to rotate via a belt. The spindle 4c2 drives the drilling cams at both ends to rotate synchronously. The drilling cams drive the drilling rocker arm to swing up and down around the axis of the left fixed axis (or right fixed axis) of the machine head via rollers. The front end of the drilling rocker arm pulls the drilling connecting rod to move up and down. The lower end of the drilling connecting rod drives the drilling slide plate to slide up and down along the drilling guide rail. The drilling slide plate drives the electric drill spindle and the drill bit to move up and down synchronously via the drilling bracket, thereby realizing the feed and retraction of the drill bit, drilling a countersunk hole of the corresponding depth on the circular brush disk 3d4 for subsequent tufting.

[0054] The tufting head drive mechanism 4i is used to drive the blade rod assembly 4k5 in the tufting head 4k to slide up and down. It mainly includes the tufting cam, the tufting rocker arm, and the tufting connecting rod.

[0055] A tufting cam is fixedly mounted in the middle of the spindle 4c2. A central fixed shaft 4j2 is fixed on the head frame 4c1. The rear end of the tufting rocker arm is hinged to the central fixed shaft 4j2. The middle part of the tufting rocker arm abuts against the circumferential surface of the corresponding tufting cam through rollers. A tufting connecting rod is hinged to the front end of the tufting rocker arm. The lower end of the tufting connecting rod is hinged to the upper end of the cutter core rod assembly 4k5.

[0056] The working principle of the tufting head drive mechanism 4i is as follows: the main shaft 4c2 drives the tufting cam to rotate, and the tufting cam drives the tufting rocker arm to swing up and down around the axis of the fixed shaft 4j2 in the machine head through the roller. The front end of the tufting rocker arm pulls the tufting connecting rod to move up and down, and the lower end of the tufting connecting rod pulls the blade core rod assembly 4k5 to slide up and down along the vertical guide groove of the blade core box assembly 4k1.

[0057] The tufting head 4k includes a core box assembly 4k1, a punch assembly 4k2, a tufting and bending assembly 4k3, a tufting nozzle assembly 4k4, and a core rod assembly 4k5.

[0058] The core box assembly 4k1 is fixed on the head frame 4c1.

[0059] The punch assembly 4k2 is located in the middle of the two drill bits and is equidistant from the drill bits on both sides.

[0060] The core box assembly 4k1 includes a core box 4k1a, a right cover plate 4k1e, and a left cover plate 4k1k. A central partition is located in the middle of the core box 4k1a, dividing its interior into left and right halves. The left cover plate 4k1k covers the left port of the left half of the core box 4k1a, and the right cover plate 4k1e covers the right port of the right half of the core box 4k1a. Furthermore, both the top and bottom ends of the core box 4k1a are through-hole structures.

[0061] The core rod assembly 4k5 includes a core rod 4k5a. The middle section of the core rod 4k5a passes through the right half of the core box 4k1a. A core rod drive shaft 4k5b is connected to the upper side of the core rod 4k5a for driving the core rod 4k5a to move up and down. Furthermore, a punch guide plate 4k5c extending to the left is fixed to the upper end of the core rod 4k5a. The punch guide plate 4k5c has a groove for the upper end of the punch drive rod 4k2a to be inserted into and guided, effectively suppressing the lateral sway of the punch assembly during long-stroke high-speed movement, preventing the punch assembly 4k2 from bending and breaking due to excessive exposed length, and ensuring the stability of the high-speed long-stroke tufting action.

[0062] The punch assembly 4k2 includes a punch drive rod 4k2a and a punch 4k2b, which are integrally connected. The punch drive rod 4k2a is connected to the upper end of the punch 4k2b and is used to drive the punch 4k2b to move up and down. The cross-section of the part where the punch drive rod 4k2a connects to the punch 4k2b is cross-shaped to improve the strength of the punch assembly 4k2.

[0063] Internal structure of the right half of the box: The right half of the core box 4k1a is used to accommodate the core rod 4k5a. Specifically, the left inner wall of the right half of the core box is covered with a middle pad 4k1b, the rear inner wall is covered with a rear pad 4k1c, and the front inner wall is covered with a front pad 4k1d. These three pads work together to guide the core rod 4k5a. The middle pad 4k1b, the rear pad 4k1c, the front pad 4k1d, and the inner walls of the right cover plate 4k1e of the core box that are in contact with the core rod 4k5a are all provided with oil grooves to reduce the frictional resistance when the core rod 4k5a moves up and down.

[0064] Internal structure of the left half of the box: The left half of the core box 4k1a is provided with a punch rear guard plate 4k1f and a punch front guard plate 4k1g. The openings of the punch rear guard plate 4k1f and the punch front guard plate 4k1g are arranged facing each other, and the two together form a punch guide groove, which is used to guide the punch assembly 4k2.

[0065] A slicing cutter 4k1m is inserted into a round hole in the lower rear side wall of the left half of the cutter core box. A wire feeding hole extending in the front-to-back direction is provided along the axis of the slicing cutter 4k1m, allowing round wire to pass through. The slicing cutter 4k1m has a notched circular cross-section, and its bottom is locked in place by a slicing cutter set screw. During operation, a round wire passes through the wire feeding hole and is fed to the required length. Then, the slicing cutter 4k3n falls along the inner end of the slicing cutter 4k1m, cutting the wire. The cut wire is then ready to be bent.

[0066] A wire bending rear die is located below the punch rear guard plate 4k1f, and a wire bending front die is located below the punch front guard plate 4k1g. The opposing end faces of the wire bending rear die and the wire bending front die are symmetrically provided with vertically extending wire forming grooves. The working process is as follows: after the wire is cut, its middle section is hooked upwards by the forming hook 4k3h, and both ends of the wire enter the wire forming groove, thus bending the wire into a downward-opening U-shape. Furthermore, the upper end of this wire forming groove corresponds to the punch guide groove. After the wire is bent and formed, the punch 4k2b punches the U-shaped wire downwards.

[0067] The slicing and bending assembly 4k3 includes a slicing and bending hinge seat 4k3a and a forming swing arm 4k3d. The bottom of the slicing and bending hinge seat 4k3a is fixed to the lower left side of the core box 4k1a. The middle part of the forming swing arm 4k3d is hinged between the top forks of the slicing and bending hinge seat 4k3a via a swing arm center hinge shaft 4k3c. Specifically, the swing arm center hinge shaft 4k3c is supported in the corresponding shaft hole of the slicing and bending hinge seat 4k3a by a needle roller bearing 4k3b.

[0068] The end of the forming swing arm 4k3d furthest from the core box 4k1a (i.e., the outer end) is the driving end of the forming swing arm. The upper end of the slicing connecting rod is driven up and down by the main shaft through the slicing cam. The lower end of the slicing connecting rod is hinged to one end of the swing arm drive pin 4k3e via a spherical bearing 4k3f. The connecting hole of the forming swing arm drive end is a smooth hole on the side near the spherical bearing 4k3f, which mates with the smooth rod section of the swing arm drive pin 4k3e. The connecting hole of the forming swing arm drive end furthest from the spherical bearing 4k3f is a threaded hole, which connects to the threaded section of the swing arm drive pin 4k3e. A nut is screwed onto the end of the threaded section of the swing arm drive pin 4k3e, and is pressed against the corresponding side wall of the forming swing arm 4k3d by spring washers and flat washers. In addition, the swing arm drive pin 4k3e is provided with a T-shaped head, which presses against the outside of the spherical bearing 4k3f, and a flat washer is provided between the spherical bearing 4k3f and the molded swing arm 4k3d.

[0069] A shredder 4k3n and a forming hook 4k3h are fixed to one end of the forming arm 4k3d near the blade core box 4k1a (i.e., the inner end). The shredder 4k3n has multiple shredder pads 4k3m on one side to adjust the blade position, ensuring it engages with the fixed shredder 4k1m to cut the wire inserted into the blade core box 4k1a. A shredder pressure plate is located on the other side of the shredder 4k3n. A shredder screw passes through the through holes of the pressure plate, the shredder 4k3n, and the shredder pads 4k3m, and is screwed into the corresponding screw hole of the forming arm 4k3d, thus clamping and fixing the shredder 4k3n and other components.

[0070] A forming hook washer is provided on one side of the forming hook 4k3h, and a forming hook pressure plate 4k3j is provided on the other side. A forming hook screw 4k3k passes through the holes in the forming hook pressure plate 4k3j, the forming hook 4k3h, and the forming hook washer, and is screwed into the corresponding screw holes in the forming swing arm 4k3d, thereby pressing and fixing the forming hook 4k3h and other components. By replacing the forming hook washer with one of different thicknesses, the position of the forming hook 4k3h can be adjusted to align it with the center of the cut wire.

[0071] The forming swing arm drive head drives the forming swing arm 4k3d to swing around the central hinge axis 4k3c, causing the cutting blade 4k3n and the forming hook 4k3h to swing along with the forming swing arm 4k3d. First, the cutting blade 4k3n swings along the inner end of the cutting fixed blade 4k1m to cut the wire; then, the forming hook 4k3h hooks the middle section of the wire, bends it upward, and enters the wire forming groove on the opposite end face of the bending die and the bending front die, causing the two ends of the wire to bend downward, finally bending the wire into a U-shape with the opening facing downward.

[0072] A bristle assembly 4k4 is installed at the lower end of the blade core rod 4k5a. This bristle assembly 4k4 includes a right half-circle 4k4a, a left half-circle 4k4b, a front upper opposite side 4k4c, a front lower opposite side 4k4d, and a rear opposite side 4k4e. Specifically: the rear opposite side 4k4e is located behind the central channel of the bristle; the front upper opposite side 4k4c and the front lower opposite side 4k4d are located in front of the central channel of the bristle; the left half-circle 4k4b is located to the left of the central channel of the bristle; and the right half-circle 4k4a is located to the right of the central channel of the bristle, and is connected to the front lower opposite side 4k4d and the rear opposite side 4k4e, respectively. Furthermore, the notch between the front upper opposite side 4k4c and the front lower opposite side 4k4d forms a bristle feeding channel, the root of which intersects with the central channel of the bristle.

[0073] Symmetrical bristle guide rollers 4k4h are arranged on both sides of the central channel of the bristle nozzle, located below the bristle feeding channel. During operation, a bundle of bristles is fed from the bristle feeding channel into the central channel of the bristle nozzle and extends in the left-right direction. The punch 4k2b pushes the U-shaped wire with its opening facing downwards downwards. The opening of the wire first wraps around the middle of the bristles, and then the bristles gradually fold in half at the bristle guide rollers 4k4h. During the gradual folding of the bristles, the blade rod drive shaft 4k5b drives the blade rod 4k5a downwards. The downward speed of the punch 4k2b is always greater than the downward speed of the blade rod 4k5a, causing the bristles to gradually bend until they are completely folded, allowing the bristles to enter the central channel of the bristle nozzle below. The blade rod 4k5a descends to the lowest position before the punch 4k2b. At this point, the lower end of the bristle nozzle assembly 4k4 abuts against the outer periphery of the brush hole. Then the punch 4k2b continues to descend to the lowest position, allowing the bristles to finally enter the depth of the brush hole. At this point, the wire completely wraps around the brush bristles, securing them firmly in the brush holes.

[0074] The 4k4h bristle guide roller transforms the sliding friction during bristle folding into rolling friction. Furthermore, the 4k4h bristle guide roller can be made of wear-resistant bearing steel, which has a high surface hardness, thus significantly reducing the wear rate. Specifically, the 4k4h bristle guide roller is fitted around the outer circumference of the roller's central shaft 4k4g. The roller central shaft 4k4g has conical recesses on both sides. The roller shaft set screw 4k4f is screwed into the corresponding screw holes of the right half circumference 4k4a and the left half circumference 4k4b of the brush tip. The inner conical head of the roller shaft set screw 4k4f is embedded in the conical recess in the center of the roller central shaft 4k4g. This ensures the precise positioning of the roller central shaft 4k4g and facilitates quick replacement of the worn brush guide roller 4k4h. In addition, the brush guide roller 4k4h achieves precise positioning through the cooperation of the conical recess and the conical set screw. The fit clearance between the roller central shaft 4k4g and the brush guide roller 4k4h is extremely small, and the brush bristles cannot be embedded in the clearance. This effectively avoids the roller jamming caused by the brush bristles being embedded and ensures that the brush guide roller 4k4h always rotates flexibly.

[0075] As a preferred option, the brush guide roller 4k4h is made of wear-resistant bearing steel, thereby further improving its service life. Furthermore, a spherical bearing 4k3f is mounted at one end of the forming arm; this structure facilitates the replacement of the spherical bearing 4k3f, while simultaneously improving the strength and service life of the forming arm 4k3d.

[0076] After bristle implantation is completed, the bristle assembly 4k4 retracts upwards, and the adjacent holes move below the bristle assembly 4k4 to await the next bristle implantation. However, for longer bristles, after the bristle assembly 4k4 retracts, the crowns at the top of the bristles will spread out, obstructing the adjacent holes and affecting subsequent bristle implantation. Therefore, the bristle-removing mechanism 4e is required to move the implanted bristles to one side.

[0077] The hair removal mechanism 4e mainly includes a hair removal cam, a hair removal rocker arm, a hair removal upper connecting rod, a hair removal swing arm one, a hair removal shaft, a hair removal swing arm two, a hair removal lower connecting rod, a hair removal bent arm, and a hair removal rod. The hair removal cam is fixedly mounted on the main shaft 4c2. The rear end of the hair removal rocker arm is hinged to the left fixed shaft of the machine head (both ends of the left fixed shaft are fixed to the machine head frame 4c1). The middle part of the hair removal rocker arm abuts against the circumferential surface of the hair removal cam via rollers. The front end of the hair removal rocker arm is hinged to the upper end of the hair removal upper connecting rod. The lower end of the hair removal upper connecting rod is hinged to the front end of the hair removal swing arm one. The rear ends of the hair removal swing arm one and the rear ends of the hair removal swing arm two are respectively fixedly mounted on the hair removal shaft. The hair removal shaft is horizontally positioned, and both ends are rotatably supported on the machine head frame 4c1 via bearings. The front end of the second hair-plucking swing arm is hinged to the upper end of the lower hair-plucking connecting rod, the lower end of the lower hair-plucking connecting rod is hinged to the upper left end of the hair-plucking curved arm, and the upper right end of the hair-plucking curved arm is hinged to the machine head frame 4c1. The lower end of the hair-plucking curved arm is fixed with a downward-extending hair-plucking rod, and the lower end of the hair-plucking rod is provided with a hair loop. When hair is implanted, the hair-planting head 4k's hair-tip assembly 4k4 passes through the hair loop.

[0078] The working principle of the hair removal mechanism is as follows: The main shaft 4c2 drives the hair removal cam to rotate. The hair removal cam drives the hair removal rocker arm to swing up and down around the axis of the left fixed shaft of the machine head through the roller. The front end of the hair removal rocker arm pulls the hair removal upper connecting rod to move up and down. The lower end of the hair removal upper connecting rod drives the front end of the hair removal swing arm one to swing up and down. The rear end of the hair removal swing arm one drives the hair removal shaft to rotate back and forth around its axis. The hair removal shaft drives the hair removal swing arm two to swing back and forth synchronously. The front end of the hair removal swing arm two pulls the hair removal curved arm to swing back and forth around its upper right hinge shaft through the hair removal lower connecting rod. The lower end of the hair removal curved arm drives the hair removal rod and the hair loop to swing back and forth synchronously, thereby pulling the hair crown that has been implanted to one side to avoid interference with the hair implantation of adjacent holes.

[0079] The nozzle cleaning unit 4f is used to clean the central channel of the nozzle online without stopping the equipment, removing diamond particles and hair attached to the inner wall of the nozzle.

[0080] The nozzle cleaning mechanism 4f includes a Z-axis cleaning cylinder 4f1, a Z-axis cleaning guide rail 4f2, a Z-axis cleaning bracket 4f3, a B-axis rotary cylinder 4f4, a cleaning swing arm 4f5, and an oil receiving funnel 4f6. The back of the Z-axis cleaning cylinder 4f1 is fixedly mounted on the machine head frame 4c1 via a bracket. The Z-axis cleaning guide rail 4f2 extends vertically and is fixedly mounted on the machine head frame 4c1. The lower end of the piston rod of the Z-axis cleaning cylinder 4f1 is fixedly connected to the Z-axis cleaning bracket 4f3. The back of the Z-axis cleaning bracket 4f3 is slidably supported on the Z-axis cleaning guide rail 4f2 via a slider. The B-axis rotary cylinder 4f4 is fixedly mounted below the Z-axis cleaning bracket 4f3. The output shaft of the B-axis rotary cylinder 4f4 faces downwards and is fixedly connected to one end of the cleaning swing arm 4f5. The B-axis rotary cylinder 4f4 can drive the cleaning swing arm 4f5 to reciprocate in the horizontal plane. The other end (front end) of the cleaning swing arm 4f5 is fixedly installed with an oil receiving funnel 4f6, and the upper port of the oil receiving funnel 4f6 is directly opposite the lower port of the bristle assembly 4k4 of the bristle implantation head 4k.

[0081] When processing abrasive brush bristles, hard particles such as diamond embedded in the bristles gradually fall off during the bristle implantation process. These particles, along with bristle debris, adhere to the inner wall of the central channel of the bristle nozzle, reducing the area of ​​the central channel and increasing the resistance to bristle passage. When cleaning is required (e.g., automatically triggered after each brush plate is implanted, or manually triggered by the operator based on the equipment's operating status), the Z-axis motor of the machine head first drives the Z-axis vertical plate of the machine head to rise, raising the bristle implantation head 4k to its highest position. Simultaneously, the spindle motor drives the bristle implantation cam to rotate, raising the lower port of the bristle nozzle assembly 4k4 to the cleaning position (high position), providing space for the cleaning swing arm 4f5 to enter.

[0082] Then, the piston rod of the Z-axis cleaning cylinder 4f1 extends, driving the Z-axis cleaning bracket 4f3 and the B-axis rotary cylinder 4f4, cleaning swing arm 4f5, and oil-collecting funnel 4f6 fixed thereon to descend as a whole along the Z-axis cleaning guide rail 4f2, so that the upper port of the oil-collecting funnel 4f6 descends to an appropriate distance below the lower port of the tufting head assembly 4k4. Next, the B-axis rotary cylinder 4f4 drives the cleaning swing arm 4f5 to swing in the horizontal plane, so that the upper port of the oil-collecting funnel 4f6 accurately reaches directly below the tufting head assembly 4k4, aligning with the lower port of the tufting head's central channel.

[0083] Next, open the solenoid valve on the cleaning oil supply line. Under pressure, the cleaning oil enters the upper part of the central channel of the nozzle and flows downward along the channel, flushing away the diamond particles and hair shavings adhering to the inner wall of the channel. The mixture of cleaning oil and solid particles flowing out from the lower port of the nozzle assembly 4k4 enters the oil receiving funnel 4f6 for collection. The lower port of the oil receiving funnel 4f6 is connected to a filter sedimentation device through a return oil pipe. After the solid particles settle, the clean cleaning oil can be recycled and reused.

[0084] After cleaning, the liquid supply solenoid valve is closed, and the B-axis rotary cylinder 4f4 drives the cleaning swing arm 4f5 to swing in the opposite direction, causing the oil receiving funnel 4f6 to move away from directly below the nozzle assembly 4k4. The piston rod of the Z-axis cleaning cylinder 4f1 retracts, driving the Z-axis cleaning bracket 4f3 and the oil receiving funnel 4f6 to rise and reset as a whole. The Z-axis motor of the machine head drives the Z-axis vertical plate of the machine head to descend, causing the tufting head 4k to descend to the low position, i.e., the working position. At the same time, the spindle motor drives the tufting cam to rotate, returning the nozzle assembly 4k4 to the working position, and the tufting operation continues. The entire cleaning process is completed automatically, without the need for manual disassembly of the nozzle assembly 4k4 or interruption of production. A single cleaning cycle takes only 30 seconds.

[0085] The punch drive mechanism 4j drives the punch 4k2b to reciprocate up and down, pressing the U-shaped wire and brush bristles with their downward openings into the countersunk hole. This invention employs a combination of a punch cam and a single eccentric wheel drive, which, compared to the traditional double eccentric wheel mechanism, achieves a superior punch motion time trajectory.

[0086] The punch drive mechanism 4j includes a punch rocker arm 4j1, a fixed shaft in the machine head 4j2, a roller 4j3, a punch cam 4j4, a first fulcrum shaft 4j5, a punch drive plate 4j6, a second fulcrum shaft 4j7, a punch swing wheel 4j8, a punch eccentric wheel 4j9, and a punch connecting rod 4j10.

[0087] The rear end of the punch rocker arm 4j1 is hinged to the fixed shaft 4j2 in the machine head. The fixed shaft 4j2 is horizontally positioned and its two ends are fixedly mounted on the machine head frame 4c1. The middle part of the punch rocker arm 4j1 abuts against the circumferential surface of the punch cam 4j4 via rollers 4j3. The punch cam 4j4 is fixedly mounted on the main shaft 4c2 and rotates synchronously with the main shaft 4c2. The contour curve of the punch cam 4j4 is optimized according to the requirements of the flocking process, which can precisely control the swing angle and angular velocity of the punch rocker arm 4j1 during the working stroke and return stroke.

[0088] The front end of the punch rocker arm 4j1 is hinged to a first fulcrum shaft 4j5, which is horizontally positioned, and its right end is hinged to the middle of the punch drive plate 4j6. The rear end of the punch drive plate 4j6 is hinged to a second fulcrum shaft 4j7, which is horizontally positioned, and its right end is hinged to the upper end of the punch swing wheel 4j8. A punch eccentric wheel 4j9 is rotatably mounted on the inner circumference of the punch swing wheel 4j8 via bearings. The punch eccentric wheel 4j9 is fixedly mounted on the main shaft 4c2 by a clamp and rotates eccentrically synchronously with the main shaft 4c2. The front end of the punch drive plate 4j6 is hinged with a punch connecting rod 4j10. The lower end of the punch connecting rod 4j10 is fixedly connected to the upper end of the punch assembly 4k2 or is connected by transmission through a connector. The punch connecting rod 4j10 is used to transmit the movement of the front end of the punch drive plate 4j6 to the punch assembly 4k2, driving the punch assembly 4k2 to move up and down along the punch guide groove.

[0089] The working principle of the punch drive mechanism 4j is as follows: When the main shaft 4c2 rotates, it drives the punch eccentric wheel 4j9 fixed on it to rotate eccentrically. The punch eccentric wheel 4j9 drives the punch swing wheel 4j8 to oscillate periodically up and down through the bearing. The upper end of the punch swing wheel 4j8 drives the rear end of the punch drive plate 4j6 to move up and down through the second fulcrum shaft 4j7. On the other hand, the main shaft 4c2 drives the punch cam 4j4 to rotate synchronously. The punch cam 4j4 drives the punch rocker arm 4j1 to swing around the axis of the fixed shaft 4j2 in the machine head through the roller 4j3. The front end of the punch rocker arm 4j1 drives the middle part of the punch drive plate 4j6 to move through the first fulcrum shaft 4j5. Under the combined drive of the punch cam and the single eccentric wheel, the front end of the punch drive plate 4j6 moves up and down according to the preset motion law, and drives the punch assembly 4k2 to make precise up and down reciprocating motion along the punch guide groove through the punch connecting rod 4j10.

[0090] The punch cam and the eccentric wheel are both mounted on the same spindle 4c2, so they move synchronously with the same period and a fixed phase difference. The final motion law of the punch drive plate 4j6 is determined by the superposition of the two input motions, and there will be no interference.

[0091] Compared to traditional double eccentric wheel mechanisms (which can only produce an approximate sinusoidal motion trajectory), the punch cam plus single eccentric wheel mechanism of this invention can precisely control the displacement, speed, and acceleration of the punch 4k2b at different stages by optimizing the contour curve of the punch cam 4j4: during the tufting stage, the punch 4k2b achieves faster acceleration to shorten the tufting time; during the return stage, the punch 4k2b achieves smoother deceleration to reduce mechanical impact, thereby achieving a higher tufting frequency, effectively saving punch stroke time, and increasing tufting speed. Simultaneously, this mechanism has a compact structure, enabling a larger punch stroke with a smaller structural size, providing structural assurance for further improving tufting speed.

[0092] like Figure 17 As shown, under normal tufting conditions, the tufting nozzle cleaning mechanism 4f is in a high, avoidance position, does not interfere with the tufting head 4k, and does not interfere with the tufting operation.

[0093] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sheet metal rust removal disc brush drilling and tufting machine, comprising a tufting machine base (1), a tufting machine vertical frame (2) fixedly connected to the rear side of the tufting machine base (1), a drilling and tufting worktable (3) disposed on the front side of the tufting machine base (1), and a machine head (4) installed on the upper part of the tufting machine vertical frame (2), characterized in that: The drilling and planting worktable (3) includes a worktable X-axis (3a), a worktable A-axis (3b), a worktable B-axis (3c), and a worktable fixture (3d). The X-axis (3a) of the worktable is located between the base (1) of the hair grafting machine and the A-axis (3b) of the worktable, and is used to drive the A-axis (3b) of the worktable to reciprocate in the horizontal direction; The worktable A axis (3b) is located between the worktable X axis (3a) and the worktable B axis (3c) and is used to drive the worktable B axis (3c) to swing around the horizontal axis. The B axis (3c) of the worktable is located between the A axis (3b) of the worktable and the worktable fixture (3d), and is used to drive the worktable fixture (3d) to rotate around the vertical axis; The worktable fixture (3d) is mounted on the B-axis (3c) of the worktable and is used to hold the circular brush disk (3d4).

2. The sheet metal rust removal disc brush drilling and fuzzing machine according to claim 1, characterized in that: The machine head (4) includes a machine head X-axis (4a), a machine head Z-axis (4b), a main shaft (4c2), a drilling mechanism (4d), a punch drive mechanism (4j), a tufting head (4k), and a tuft cleaning mechanism (4f); the machine head X-axis (4a) is located between the vertical frame (2) of the tufting machine and the machine head Z-axis (4b), and is used to drive the machine head Z-axis (4b) to reciprocate horizontally; the machine head Z-axis (4b) is located between the machine head X-axis (4a) and the machine head frame (4c1), and is used to drive the machine head frame (4c1) to rise and fall vertically; the main shaft (4c2) is rotatably supported on the machine head frame (4c1) and is connected to the main shaft motor for transmission.

3. The sheet metal rust removal disc brush drilling and fuzzing machine according to claim 2, characterized in that: The bristle implantation head (4k) is mounted on the head frame (4c1). The lower end of the bristle implantation head (4k) is provided with a bristle nozzle assembly (4k4). The bristle nozzle assembly (4k4) has a bristle nozzle central channel and a bristle feeding channel located in front of and intersecting with the bristle nozzle central channel. The left and right sides of the bristle nozzle central channel are respectively provided with bristle guide rollers (4k4h) below the bristle feeding channel.

4. The sheet metal rust removal disc brush drilling and fuzzing machine according to claim 2, characterized in that: The punch drive mechanism (4j) includes a punch cam (4j4) and a punch eccentric wheel (4j9) driven by a main shaft (4c2). The punch cam (4j4) and the punch eccentric wheel (4j9) together drive the punch assembly (4k2) to reciprocate.

5. The sheet metal rust removal disc brush drilling and fuzzing machine according to claim 2, characterized in that: The nozzle cleaning mechanism (4f) includes a Z-axis cleaning cylinder (4f1), a Z-axis cleaning bracket (4f3), a B-axis rotary cylinder (4f4), a cleaning swing arm (4f5), and an oil-collecting funnel (4f6). The Z-axis cleaning cylinder (4f1) is mounted on the head frame (4c1), and its piston rod end is connected to the Z-axis cleaning bracket (4f3). The B-axis rotary cylinder (4f4) is mounted on the Z-axis cleaning bracket (4f3), and its output shaft is connected to the cleaning swing arm (4f5). An oil-collecting funnel (4f6) is installed at the end of the cleaning swing arm (4f5), and the upper port of the oil-collecting funnel (4f6) is aligned with the lower port of the nozzle assembly (4k4) in the cleaning state.

6. The sheet metal rust removal disc brush drilling and fuzzing machine according to claim 1, characterized in that: The X-axis of the worktable (3a) includes a X-axis guide rail (3a2) fixed on the base (1) of the hair implantation machine, a X-axis support (3a3) slidably supported on the X-axis guide rail (3a2), and a X-axis drive mechanism for driving the X-axis support (3a3) to translate. The X-axis drive mechanism is a X-axis cylinder (3a1) fixed on the base (1) of the hair implantation machine, and the piston rod end of the X-axis cylinder (3a1) is fixedly connected to the X-axis support (3a3).

7. The sheet metal rust removal disc brush drilling and fuzzing machine according to claim 1, characterized in that: The A-axis (3b) of the worktable includes an A-axis motor (3b1) mounted on the X-axis bracket (3a3) of the worktable, an A-axis reducer (3b3) driven by the A-axis motor (3b1), an A-axis support plate (3b4) fixedly connected to the output shaft of the A-axis reducer (3b3), and a fan-shaped support plate (3b5) fixed to the bottom of the A-axis support plate (3b4). The arc-shaped bottom surface of the fan-shaped support plate (3b5) is supported on a plurality of support rollers (3b20), and the support rollers (3b20) are mounted on the A-axis fixed seat (3b6). The A-axis fixed seat (3b6) is also provided with an A-axis locking mechanism for locking the fan-shaped support plate (3b5).

8. The sheet metal rust removal disc brush drilling and fuzzing machine according to claim 7, characterized in that: The A-axis locking mechanism includes an anti-slip support (3b7) and an anti-slip cylinder (3b9) fixed on the A-axis mounting base (3b6). The piston rod end of the anti-slip cylinder (3b9) is connected to an anti-slip pad (3b10). The anti-slip support (3b7) abuts against one side of the fan-shaped support plate (3b5), and the anti-slip pad (3b10) corresponds to the other side of the fan-shaped support plate (3b5). The anti-slip cylinder (3b9) pushes the anti-slip pad (3b10) to clamp the fan-shaped support plate (3b5) between the anti-slip support (3b7) and the anti-slip pad (3b10).

9. The sheet metal rust removal disc brush drilling and fuzzing machine according to claim 7, characterized in that: The X-axis support (3a3) of the worktable is provided with two workstations, which are respectively provided with the A-axis (3b) and B-axis (3c) of the worktable; the A-axis reducers (3b3) of the two workstations are synchronously driven by the same A-axis motor (3b1) through a belt.

10. The sheet metal rust removal disc brush drilling and fuzzing machine according to claim 1, characterized in that: The B-axis (3c) of the worktable includes a B-axis reducer (3c2) fixed on the A-axis support plate (3b4), a B-axis motor (3c1) that is connected to the B-axis reducer (3c2) for transmission, and a B-axis disc (3c3) that is fixedly connected to the output shaft of the B-axis reducer (3c2); the B-axis reducer (3c2) is a worm gear reducer.

11. The sheet metal rust removal disc brush drilling and fuzzing machine according to claim 1, characterized in that: The worktable fixture (3d) includes multiple fixture cylinders (3d1) evenly distributed around the B-axis disk (3c3). The outer end of the piston rod of each fixture cylinder (3d1) is connected to a brush body gripper (3d3) via a radial sliding plate (3d2).

12. The sheet metal rust removal disc brush drilling and fuzzing machine according to claim 1, characterized in that: The base (1) of the hair implantation machine is fixed with a hydraulic buffer (3a4), and the buffer head of the hydraulic buffer (3a4) corresponds to the side end face of the X-axis bracket (3a3) of the worktable.

13. The sheet metal rust removal disc brush drilling and fuzzing machine according to claim 3, characterized in that: The brush guide roller (4k4h) is fitted around the outer periphery of the roller central shaft (4k4g). The roller central shaft (4k4g) has conical recesses on both sides of its center, and the inner conical head of the roller shaft set screw (4k4f) is embedded in the conical recesses.

14. The sheet metal rust removal disc brush drilling and fuzzing machine according to claim 3, characterized in that: The tufting head (4k) further includes a core holder assembly (4k1) and a core rod assembly (4k5). The core holder assembly (4k1) has a core rod guide groove and a punch guide groove. The core rod assembly (4k5) includes a core rod (4k5a) slidably disposed in the core rod guide groove. The upper end of the core rod (4k5a) is connected to the tufting head drive mechanism (4i), and the lower end is connected to the tufting nozzle assembly (4k4). The punch assembly (4k2) is slidably disposed in the punch guide groove. The upper end of the punch assembly (4k2) is connected to the punch drive mechanism (4k5). j) Connection; The nozzle assembly (4k4) includes the right half-circle of the nozzle (4k4a), the left half-circle of the nozzle (4k4b), the upper front side of the nozzle (4k4c), the lower front side of the nozzle (4k4d), and the rear side of the nozzle (4k4e). The central channel of the nozzle is formed by the right half-circle of the nozzle (4k4a), the left half-circle of the nozzle (4k4b), the lower front side of the nozzle (4k4d), and the rear side of the nozzle (4k4e). The feeding channel is formed by the gap between the upper front side of the nozzle (4k4c) and the lower front side of the nozzle (4k4d).

15. The sheet metal rust removal disc brush drilling and fuzzing machine according to claim 4, characterized in that: The punch drive mechanism (4j) further includes a punch rocker arm (4j1), a central fixed shaft (4j2) in the machine head, a roller (4j3), a punch drive plate (4j6), a punch swing wheel (4j8), and a punch connecting rod (4j10). The rear end of the punch rocker arm (4j1) is hinged to the central fixed shaft (4j2) in the machine head, and the middle part of the punch rocker arm (4j1) abuts against the circumferential surface of the punch cam (4j4) through the roller (4j3). The front end of the punch rocker arm (4j1) is hinged to the middle part of the punch drive plate (4j6). The punch swing wheel (4j8) is rotatably mounted on the outer circumference of the punch eccentric wheel (4j9), and the upper end of the punch swing wheel (4j8) is hinged to the rear end of the punch drive plate (4j6). The front end of the punch drive plate (4j6) is connected to the punch assembly (4k2) through the punch connecting rod (4j10).

16. The sheet metal rust removal disc brush drilling and fuzzing machine according to claim 2, characterized in that: The machine head (4) also includes a slicing and bending assembly (4k3) and a deburring mechanism (4e). The slicing and bending assembly (4k3) includes a slicing and bending hinge seat (4k3a) fixed on the blade core box assembly (4k1) and a forming swing arm (4k3d) hinged thereon. One end of the forming swing arm (4k3d) is the driving end, and the other end is fixed with a slicing blade (4k3n) and a forming hook (4k3h). The driving end of the forming swing arm (4k3d) is provided with a connecting hole. One side of the connecting hole is a smooth hole, and the other side is a screw hole. The smooth rod of the swing arm drive pin (4k3e) is also provided. The segment is inserted into the light hole, the threaded segment of the swing arm drive pin (4k3e) is threadedly connected to the threaded hole, the spherical bearing (4k3f) is fitted on the swing arm drive pin (4k3e) and located on the outside of the drive end, the T-shaped head of the swing arm drive pin (4k3e) is pressed against the outside of the spherical bearing (4k3f); the hair removal mechanism (4e) includes a hair removal cam driven by the main shaft (4c2) and a hair removal rod connected to the hair removal cam, the lower end of the hair removal rod is provided with a hair loop, and the hair removal nozzle assembly (4k4) passes through the hair loop.

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