Aluminum roll strip sizing precision positioning mechanism

Abstract

The application discloses an aluminum roll slitting size accurate positioning mechanism, which comprises a rack, a deviation rectifying mechanism is installed at one end of the rack, a unwinding mechanism is arranged at the rack end away from the deviation rectifying mechanism, a sensor module is installed above the deviation rectifying mechanism, and a slitting mechanism, a pressing rubber roller mechanism, a photoelectric component, a cutting mechanism and a material disc component are sequentially installed on the rack; a guide roller is installed between the pressing rubber roller mechanism and the photoelectric component, and a swing roller assembly is installed below the guide roller; the unwinding mechanism comprises a first supporting base, an arc plate, a hinged base, a sleeve and a rotating shaft, the rotating shaft is rotatably installed on the first supporting base, the middle part of the rotating shaft is provided with the hinged base, one end of the rotating shaft is provided with the sleeve, and the other end of the rotating shaft is provided with a nut for adjusting the sleeve position. According to the application, high-precision machining can reduce the aluminum material rejection, and the buffer damping structure can prolong the service life of the cutter, the roller shaft and other vulnerable parts.

Description

Technical Field

[0001] This invention relates to the field of aluminum coil slitting technology, specifically to a precise positioning mechanism for aluminum coil slitting dimensions. Background Technology

[0002] Aluminum coils are widely used in electronic heat dissipation, packaging, electrical busbars, and building decoration. In actual processing, wide aluminum coils need to be slit into specified narrow strips, and then cut to fixed lengths. High precision is required for the slitting width and length dimensions; even slight dimensional deviations can lead to the scrapping of finished products. Currently, conventional aluminum coil slitting and cutting equipment in the industry has several inherent defects in actual production, severely restricting processing accuracy and the yield of qualified products.

[0003] Traditional unwinding equipment often uses a simple single-axis support structure, lacking a synchronous centering and tensioning structure. This easily leads to inner hole eccentricity after the aluminum coil is assembled, causing continuous lateral movement of the aluminum strip during unwinding. Simultaneously, the lack of a lateral limiting structure makes the aluminum coil prone to axial slippage, resulting in irregular incoming material references and width deviations from the source. Conventional correction devices have detection points far from the slitting station, resulting in signal feedback lag. This prevents timely correction after the aluminum strip deviates, leading to large width errors in the slit strips. Furthermore, most equipment relies solely on a single edge stop for limiting, lacking a front and rear dual positioning structure, making the cut end face prone to skew and increasing burrs.

[0004] When the existing slitting knife assembly is in operation, the high-speed engagement of the blades generates severe impact vibrations. The equipment lacks a buffer and shock absorption structure, which can easily lead to loosening of the knife assembly and blade position drift during long-term operation, resulting in continuous inaccuracy in slitting dimensions. The asynchronous transmission of the upper and lower knife assemblies and uneven shearing force further exacerbate the deviation of the aluminum strip from the material. The material conveying process relies solely on ordinary guide rollers without a clamping and traction mechanism, making it easy for the aluminum strip to slip between the rollers. At the same time, the aluminum strip itself has warping and wrinkling issues. The combination of slippage and deformation causes fluctuations in longitudinal length dimensions, resulting in poor consistency in fixed-length cutting.

[0005] Traditional equipment features independent speed adjustments for each process—unwinding, slitting, and cutting—lacking a closed-loop tension adjustment mechanism. This makes it difficult to match the linear speeds at each station, resulting in inconsistent aluminum strip tension. Excessive tension stretches the aluminum strip, causing length reduction, while insufficient tension causes the strip to bunch and wrinkle, both leading to dimensional defects in the finished product. Furthermore, fixed length detection points cannot be adapted to different aluminum strip widths, resulting in cumulative errors in length detection and making precise control of the cutting trigger timing difficult. Summary of the Invention

[0006] The purpose of this invention is to provide a precise positioning mechanism for aluminum coil slitting dimensions, so as to solve the problems in the prior art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a precise positioning mechanism for aluminum coil slitting dimensions, comprising a frame, a correction mechanism installed at one end of the frame, an unwinding mechanism located at the end of the correction mechanism away from the frame, a sensor module installed above the correction mechanism on the frame, and a slitting mechanism, a pressing roller mechanism, a photoelectric component, a cutting mechanism, and a material tray assembly sequentially installed on the frame; a guide roller is installed between the pressing roller mechanism and the photoelectric component on the frame, and a swing roller assembly is installed below the guide roller on the frame; The unwinding mechanism includes a first support base, an arc-shaped plate, a hinge seat, a sleeve, and a rotating shaft. The first support base is rotatably mounted with the rotating shaft. The hinge seat is installed in the middle of the rotating shaft. The sleeve is installed at one end of the rotating shaft, and a nut for adjusting the position of the sleeve is installed at one end of the rotating shaft. Three arc-shaped plates are evenly spaced on the outer side of the sleeve. The arc-shaped plates are connected to the sleeve through two first connecting rods. The hinge seat is connected to the middle of one of the first connecting rods through a second connecting rod. A limiting roller that rolls in contact with the aluminum coil is installed at the top of the support base. The slitting mechanism includes a second support base, an upper blade assembly, and a lower blade assembly. The second support base has multiple upper guide blocks installed at equal intervals on one side of the upper blade assembly, and multiple lower guide blocks installed at equal intervals on one side of the lower blade assembly. The included angle between the lower guide blocks and the upper guide blocks is an acute angle.

[0008] Preferably, the two ends of the first connecting rod are connected to the sleeve and the arc plate respectively by pins, and the two ends of the second connecting rod are connected to the hinge seat and the first connecting rod respectively by pins; a baffle is installed at one end of the hinge seat.

[0009] Preferably, lower roller seats are installed at both ends of the second support base, and upper roller seats are slidably installed above the lower roller seats at both ends of the second support base. A buffer assembly is installed between the upper roller seats and the lower roller seats. The second support base is equipped with a second adjustment knob for adjusting the lower roller seats. The upper cutter group is rotatably installed on the two upper roller seats, and the lower cutter group is rotatably installed on the two lower roller seats. The upper cutter group is driven by a drive assembly, and the upper cutter group and the lower cutter group are connected by a synchronous pulley and a synchronous belt. A guide roller is adjustablely installed on one side of the upper cutter group on the second support base, and the second support base is equipped with a first adjustment knob for adjusting the height of the guide roller.

[0010] Preferably, the buffer assembly includes a buffer seat and a spring, with the spring located between two buffer seats; both the upper and lower cutter groups include a limiting ring and a cutting tool.

[0011] Preferably, the correction mechanism includes a fixed plate, an electric cylinder, and a correction frame. The fixed plate is equipped with an electric cylinder that drives the correction frame to move back and forth. The two ends of the electric cylinder are respectively connected to the fixed plate and the correction frame through pins. The fixed plate is equipped with a guide rod, the correction frame is equipped with a guide sleeve that cooperates with the guide rod, and the correction frame is equipped with a correction roller.

[0012] Preferably, the pressing roller mechanism includes a first lower roller, a first upper roller, and a lifting cylinder. The first lifting cylinder drives the first upper roller to rise and fall, thereby adjusting the distance between the first lower roller and the first upper roller.

[0013] Preferably, the photoelectric component includes a sliding plate and two parallel optical rods. The sliding plate is slidably mounted on the two optical rods, and a slider is adjustablely mounted on the sliding plate. The slider is equipped with a photoelectric sensor.

[0014] Preferably, the swing roller assembly includes a limiting rod, a swing frame, and a tie rod rheostat. The swing frame is equipped with two swing rollers, and a gear is installed at one end of the swing frame. The tie rod rheostat drives the swing frame to swing, and the frame is equipped with a limiting rod to limit the swing frame.

[0015] Preferably, the material tray assembly includes a mounting base, a material tray, a discharge baffle, and a first connecting seat. The first connecting seat is mounted on the frame, and a second connecting seat is mounted on the bottom of one end of the material tray. An adjusting rod for adjusting the distance between the material tray and the discharge baffle is installed between the first connecting seat and the second connecting seat.

[0016] Preferably, the cutting mechanism includes a third support base, a clamping plate installed at the feed end of the third support base, and two limiting strips adjustablely installed on the clamping plate; the third support base is equipped with a second upper glue roller and a second lower glue roller, and a third adjusting knob for adjusting the position of the second upper glue roller is installed on the third support base; a first synchronous pulley is installed at one end of the second lower glue roller; a motor is installed on the third support base, and the motor drives the second synchronous pulley to rotate; the cutting mechanism also includes an upper knife holder, an upper cutting blade, a lower cutting blade, and a third connecting rod; the upper knife holder is equipped with a cutting blade that cooperates with the lower cutting blade; a third connecting rod is installed at one end of the upper knife holder via a pin; the third connecting rod is connected to an eccentric shaft; a third synchronous pulley is installed at one end of the eccentric shaft; and the third synchronous pulley, the second synchronous pulley, and the first synchronous pulley are connected by a synchronous belt.

[0017] Compared with the prior art, the beneficial effects of the present invention are: This application's unwinding mechanism relies on a rotating shaft, a sleeve, and multiple sets of connecting rods to simultaneously tension three arc-shaped plates, automatically fitting into the inner hole of the aluminum coil to achieve coaxial self-centering. The nut at the end of the rotating shaft can axially adjust the sleeve position to adapt to aluminum coils of different widths. Combined with the lateral limiting roller and the baffle to prevent axial movement of the aluminum coil, it can avoid the problems of aluminum coil eccentricity and material deviation in traditional unwinding structures. It ensures the aluminum strip's feeding reference is regular from the material conveying starting point, reducing slitting width error at the source. The sensor module arranged above the frame can collect the aluminum strip's lateral deviation signal in real time and transmit it to the control unit. In the correction mechanism, the electric cylinder supported by the fixed plate pushes and pulls the correction frame to slide horizontally along the guide rod according to the deviation amount. The correction roller on the correction frame supports the aluminum strip and simultaneously completes centering correction. Pre-correction is completed before the aluminum strip enters the slitting mechanism, solving the defects of lagging correction and inconsistent strip width after slitting in traditional equipment, and stabilizing the lateral position accuracy of the aluminum strip.

[0018] The upper and lower roller seats of the slitting mechanism are equipped with a buffer assembly consisting of a buffer seat and a spring. The upper and lower blade groups achieve synchronous reverse rolling shearing by means of a synchronous belt, and the blades are locked and fixed by a limit ring. The buffer assembly can absorb the impact vibration generated at the moment of blade engagement and shearing, and avoid the vibration causing blade group displacement and continuous drift of slitting width. At the same time, the upper and lower guide blocks with acute angles limit and guide the aluminum strip feeding, further improving the stability of the slitting size.

[0019] The pressing roller mechanism drives the upper roller to rise and fall through the lifting cylinder, flexibly adjusting the clamping gap between it and the lower roller. The rollers rely on surface friction to clamp the aluminum strip and complete the uniform traction of the entire line. On the one hand, it smooths out the warping and folding of the aluminum strip, ensuring that the aluminum strip moves smoothly. On the other hand, it prevents the aluminum strip from slipping between the guide roller and the knife set, unifies the conveying speed of the entire process, and avoids length and dimension deviations caused by slippage and material deformation.

[0020] The swing frame of the swing roller assembly is equipped with two swing rollers to support the aluminum strip. When the speed of the unwinding, slitting, and cutting processes is not matched, the change in aluminum strip tension will drive the swing frame to swing. The end gear linkage pull rod rheostat converts the swing angle into an electrical signal and feeds it back to the whole machine controller. The controller automatically adjusts the speed of each unit motor according to the signal to dynamically match the line speed of the whole line. The limit rod on the frame limits the maximum swing stroke of the swing frame to avoid excessive stretching or slack accumulation of the aluminum strip, maintains constant tension throughout the process, and eliminates longitudinal dimensional deviations caused by stretching and wrinkling of the aluminum strip.

[0021] The optoelectronic component uses two parallel light rods as guide rails. The slide plate can slide laterally along the light rods to adapt to aluminum strips of different widths. The slider on the slide plate can be finely adjusted back and forth. The photoelectric eye mounted on the slider continuously scans the aluminum strip and collects the transmission length signal in real time. When the aluminum strip travels to the preset cutting size, it can output a trigger signal to start the cutting mechanism. The multi-directional adjustable detection structure can adapt to various specifications of aluminum strips, eliminate the cumulative length error caused by fixed detection points, and ensure that the fixed length size of each finished product is uniform.

[0022] The cutting mechanism uses a support base as a carrier, with a single motor driving a set of synchronous pulleys. The feeding synchronous pulley and the cutting synchronous pulley are synchronously linked by the synchronous belt. The feeding synchronous pulley drives the lower rubber roller to feed the material at a uniform speed, while the cutting synchronous pulley drives the eccentric shaft and, through a connecting rod, drives the upper cutting blade to reciprocate and cut. The feeding and cutting actions are mechanically synchronized, with no electrical control delay error. The adjustable limit strip on the feed end plate provides secondary lateral limit for the aluminum strip, and the adjustment knob can adjust the pressing force of the upper rubber roller. The double limit combined with synchronous transmission ensures that the cut end face is vertical and neat, greatly improving the fixed-length cutting accuracy and the appearance quality of the finished product.

[0023] This application features adjustable structures at each station: unwinding, slitting, inspection, cutting, and unloading. The unwinding mechanism adjusts the axial position of the sleeve using a nut; the slitting mechanism adjusts the height of the guide roller and the lateral position of the lower roller seat using two sets of adjustment knobs; the photoelectric component slide plate and slider can move in multiple directions; the cutting mechanism's limit bar and adjustment knob adjust the width limit and the pressure of the rubber roller, respectively; and the material tray assembly changes the distance between the material tray and the unloading baffle using an adjustment rod. A single machine can be adapted to process aluminum coils of different widths, inner holes, and cutting lengths, eliminating the need for frequent tooling changes and reducing equipment investment costs.

[0024] One set of connecting seats in the material tray assembly is fixed to the frame. Another set of connecting seats at the bottom of the material tray is equipped with an adjusting rod between it and the fixed connecting seat. Rotating the adjusting rod can adjust the distance between the material tray and the discharge baffle to adapt to aluminum strips of different widths. The discharge baffle laterally constrains the cut aluminum strips. The card holder cooperates with the material tray to neatly store the finished products, effectively preventing the aluminum strips from being scattered, bent, or shifted laterally, avoiding secondary deformation after the finished products are discharged, ensuring the stability of the finished product dimensions, and reducing manual handling processes. Attached Figure Description

[0025] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is the present invention. Figure 1 Partial structural diagram; Figure 3 This is a schematic diagram of the unwinding mechanism of the present invention; Figure 4 This is a schematic diagram of the unwinding mechanism of the present invention; Figure 5 This is the present invention. Figure 4 A structural diagram from another perspective; Figure 6 This is a schematic diagram of the correction mechanism of the present invention; Figure 7 This is a schematic diagram of the slitting mechanism of the present invention; Figure 8 This is a schematic diagram of the slitting mechanism of the present invention; Figure 9 This is the present invention. Figure 8 The main view; Figure 10 This is the present invention. Figure 8 A structural diagram from another perspective; Figure 11 This is a schematic diagram of the structure of the buffer component of the present invention; Figure 12 This is a schematic diagram of the pressing roller mechanism of the present invention; Figure 13 This is a schematic diagram of the structure of the optoelectronic component of the present invention; Figure 14 This is a schematic diagram of the structure of the swing roller assembly of the present invention; Figure 15 This is a schematic diagram of the cutting mechanism of the present invention; Figure 16 This is a schematic diagram of the cutting mechanism of the present invention from another perspective; Figure 17 This is a schematic diagram of the material tray assembly of the present invention.

[0026] In the diagram: 1. Frame; 2. Unwinding mechanism; 3. Web guiding mechanism; 4. Slitting mechanism; 5. Pressing roller mechanism; 6. Photoelectric component; 7. Material tray assembly; 8. Sensor module; 9. Cutting mechanism; 10. Guide roller; 11. Swinging roller assembly; 201. First support seat; 202. Limiting roller; 203. Baffle; 204. Arc plate; 205. First connecting rod; 206. Hinge seat; 207. Second connecting rod; 208. Sleeve; 209. 301. Rotating shaft; 302. Fixed plate; 303. Electric cylinder; 304. Correcting frame; 305. Guide rod; 406. Correcting roller; 407. Second support base; 408. Upper guide block; 409. Lower guide block; 400. Lower roller seat; 401. Counterweight; 402. Buffer assembly; 403. Upper roller seat; 404. Upper cutter assembly; 415. First adjusting knob; 416. Second adjusting knob; 417. Lower cutter assembly; 418. Guide roller; 4061, Buffer seat; 4062, Spring; 4081, Limiting ring; 4082, Cutting tool; 501, First lower rubber roller; 502, First upper rubber roller; 503, Lifting cylinder; 601, Smooth rod; 602, Slide plate; 603, Slider; 604, Photoelectric sensor; 1101, Swing frame; 1102, Tie rod rheostat; 1103, Gear; 1104, Swing roller; 1105, Limiting rod; 901, Third support seat; 902. 903. Clamping plate; 904. Limiting strip; 905. First synchronous pulley; 906. Second upper glue roller; 907. Third adjusting knob; 908. Upper cutter holder; 909. Upper cutting blade; 910. Second synchronous pulley; 911. Third synchronous pulley; 912. Lower cutting blade; 913. Third connecting rod; 701. Clamping seat; 702. Material tray; 703. Discharge baffle; 704. First connecting seat; 705. Adjusting rod; 706. Second connecting seat. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0028] Please see Figure 1-17In this embodiment of the invention, an aluminum coil slitting size precision positioning mechanism includes a frame 1. A correction mechanism 3 is installed at one end of the frame 1, and an unwinding mechanism 2 is provided at the end of the correction mechanism 3 away from the frame 1. A sensor module 8 is installed on the frame 1 above the correction mechanism 3. A slitting mechanism 4, a pressing roller mechanism 5, a photoelectric component 6, a cutting mechanism 9, and a material tray assembly 7 are sequentially installed on the frame 1. A guide roller 10 is installed on the frame 1 between the pressing roller mechanism 5 and the photoelectric component 6. An oscillating roller assembly 11 is installed on the frame 1 below the guide roller 10. The guide roller 10 is installed on the frame between the sensor module 8 and the slitting mechanism 4.

[0029] The unwinding mechanism 2 includes a first support 201, an arc-shaped plate 204, a hinge 206, a sleeve 208, and a rotating shaft 209. The first support 201 is rotatably mounted with the rotating shaft 209. The hinge 206 is mounted in the middle of the rotating shaft 209. The sleeve 208 is mounted at one end of the rotating shaft 209, and a nut for adjusting the position of the sleeve 208 is mounted at one end of the rotating shaft 209. Three arc-shaped plates 204 are evenly spaced on the outer side of the sleeve 208. The arc-shaped plates 204 are open... The first connecting rod 205 is connected to the sleeve 208. The hinge seat 206 is connected to the middle of one of the first connecting rods 205 via the second connecting rod 207. The top of the support seat is equipped with a limiting roller 202 that rolls in contact with the aluminum coil. The two ends of the first connecting rod 205 are respectively connected to the sleeve 208 and the arc plate 204 via pins. The two ends of the second connecting rod 207 are respectively connected to the hinge seat 206 and the first connecting rod 205 via pins. A baffle 203 is installed at one end of the hinge seat 206. The unwinding mechanism 2 relies on a rotating shaft 209, a sleeve 208, multiple sets of connecting rods, and an arc-shaped plate 204 to form a synchronous tensioning and centering structure. The rotating shaft 209 rotates on the first support seat 201 to support the aluminum coil material. The nut at the end of the rotating shaft 209 can axially adjust the position of the sleeve 208 to adapt to aluminum coils of different widths. Three equally spaced arc-shaped plates 204 are hinged to the outside of the sleeve 208 through the first connecting rod 205. The hinge seat 206 is connected to the middle of the first connecting rod 205 through the second connecting rod 207. The arc-shaped plates 204 expand outward synchronously through the linkage of the connecting rods, automatically fitting the inner hole of the aluminum coil to complete self-centering and avoid unwinding deviation caused by the eccentricity of the material coil. A limiting roller 202 is set at the top of the support seat to roll in contact with the side of the aluminum coil to facilitate the unwinding of the aluminum coil. The baffle 203 at the end of the hinge seat 206 prevents the aluminum coil from slipping axially, stabilizing the aluminum strip conveying benchmark from the unwinding source and providing a regularly positioned incoming material for subsequent processes.

[0030] The correction mechanism 3 includes a fixed plate 301, an electric cylinder 302, and a correction frame 303. The fixed plate 301 is equipped with an electric cylinder 302 that drives the correction frame 303 to reciprocate. The two ends of the electric cylinder 302 are respectively connected to the fixed plate 301 and the correction frame 303 via pins. The fixed plate 301 is equipped with a guide rod 304. The correction frame 303 is equipped with a guide sleeve that cooperates with the guide rod 304. The correction frame 303 is equipped with a correction roller 305. The correction mechanism 3, together with the sensor module 8 above the frame 1, forms a closed-loop correction system for lateral offset. The fixed plate 301 serves as a fixed carrier to support the electric cylinder 302 and the guide rod 304. The two ends of the electric cylinder 302 are connected to the fixed plate 301 and the correction frame 303 respectively through pins. The sensor module 8 collects the side offset signal of the aluminum strip in real time and transmits it to the control unit. The controller drives the electric cylinder 302 to push and pull the correction frame 303 along the guide rod 304 to slide horizontally back and forth according to the offset. The guide sleeve and the guide rod 304 cooperate to ensure the straightness of the movement of the correction frame 303. The correction roller 305 on the correction frame 303 supports the aluminum strip and moves left and right synchronously, correcting the offset aluminum strip to the center standard position. The pre-correction is completed before slitting, eliminating the slitting size error caused by the lateral deviation of the incoming material.

[0031] The slitting mechanism 4 includes a second support base 401, an upper blade assembly 408, and a lower blade assembly 411. The second support base 401 is provided with a plurality of upper guide blocks 402 installed at equal intervals on one side of the upper blade assembly 408. The second support base 401 is provided with a plurality of lower guide blocks 403 installed at equal intervals on one side of the lower blade assembly 411. The included angle between the lower guide blocks 403 and the upper guide blocks 402 is an acute angle. Both ends of the second support base 401 are equipped with lower roller seats 404. Both ends of the second support base 401 are slidably mounted with upper roller seats 407 above the lower roller seats 404. A buffer assembly 406 is installed between the upper roller seats 407 and the lower roller seats 404. The second support base 401 is equipped with a second adjusting knob 410 for adjusting the lower roller seats 404. The upper blade assembly 408 is rotatably mounted on the two upper roller seats 407, and the lower blade assembly 411 is rotatably mounted on the two lower roller seats 404. The upper blade assembly 408 is driven by a drive assembly, and the upper blade assembly 408 and the lower blade assembly 411 are connected by a synchronous pulley and a synchronous belt. A guide roller 412 is adjustablely mounted on one side of the second support base 401 on the upper blade assembly 408. The second support base 401 is equipped with a first adjusting knob 409 for adjusting the height of the guide roller 412. The buffer assembly 406 includes a buffer seat 4061 and a spring 4062, with the spring 4062 located between the two buffer seats 4061. Both the upper blade assembly 408 and the lower blade assembly 411 include a limiting ring 4081 and a cutting tool 4082. The slitting mechanism 4 achieves precise slitting by using synchronous rolling shearing, bidirectional mechanical limiting, and buffering shock absorption as its core. The drive assembly rotates the upper blade assembly 408, and the lower blade assembly 411 rotates synchronously in the opposite direction via a synchronous pulley and synchronous belt. The upper blade assembly 408 and the lower blade assembly 411 are equipped with limiting rings 4081 to fix the spacing of the cutting tools 4082. The aluminum strip is slitting to a fixed width by the meshing of the cutting tools 4082. The second support seat 401 has upper guide blocks 402 and lower guide blocks 403 with acute angles on both sides, which guide the aluminum strip before and after slitting. The aluminum strip is guided for smooth feeding. A buffer assembly 406, consisting of a buffer seat 4061 and a spring 4062, is installed between the lower roller seat 404 and the upper roller seat 407 to absorb the impact vibration generated by the cutting tool and prevent the aluminum strip from shifting due to blade vibration. The first adjustment knob 409 can adjust the height of the guide roller 412 to change the angle of the aluminum strip entering the blade, and the second adjustment knob 410 can finely adjust the lateral position of the lower roller seat 404 to adapt to various slitting widths and stabilize the slitting size accuracy.

[0032] The pressing roller mechanism 5 includes a first lower roller 501, a first upper roller 502, and a lifting cylinder 503. The first lifting cylinder 503 drives the first upper roller 502 to rise and fall, thereby adjusting the distance between the first lower roller 501 and the first upper roller 502. The pressing roller mechanism 5 relies on the cylinder to achieve stable clamping of the aluminum strip. The lifting cylinder 503 vertically drives the first upper roller 502 to rise and fall, thereby flexibly adjusting the gap between the first upper roller 502 and the first lower roller 501. When the aluminum strip passes between the two rollers, it is tightly clamped and pulled forward at a uniform speed by the friction of the roller surface. The clamping action of the rollers can eliminate the slippage between the aluminum strip and each guide roller and blade assembly, ensuring a uniform material conveying speed throughout the line. At the same time, it presses and smooths out the warped deformation of the aluminum strip, maintaining a flat material flow state and avoiding longitudinal length deviation caused by slippage and warping.

[0033] The photoelectric component 6 includes a slide plate 602 and two parallel light rods 601. The slide plate 602 is slidably mounted on the two light rods 601. A slider 603 is adjustablely mounted on the slide plate 602, and a photoelectric sensor 604 is mounted on the slider 603. The photoelectric component 6 serves as a signal acquisition unit for cutting and size detection. The two parallel light rods 601 are fixedly mounted on the frame 1 to form a sliding guide rail. The slide plate 602 can slide laterally along the light rods 601 to adapt to aluminum strips of different widths. The slide plate 602 is equipped with a slider 603 that can be finely adjusted back and forth. The slider 603 is equipped with a photoelectric sensor 604. The photoelectric sensor 604 continuously scans the edge or length mark of the aluminum strip, and collects the position and travel length signals of the aluminum strip in real time. When the aluminum strip is conveyed to the preset cutting length, the photoelectric sensor 604 outputs a trigger signal to the cutting mechanism 9 to start the cutting operation. The multi-dimensional adjustment structure of the slide plate 602 and the slider 603 can flexibly adjust the detection point to adapt to the positioning and detection needs of various specifications of finished products.

[0034] The swing roller assembly 11 includes a limiting rod 1105, a swing frame 1101, and a pull rod rheostat 1102. The swing frame 1101 is equipped with two swing rollers 1104. A gear 1103 is installed at one end of the swing frame 1101. The pull rod rheostat 1102 drives the swing frame 1101 to swing. The frame 1 is equipped with a limiting rod 1105 that limits the swing frame 1101. The oscillating roller assembly 11 realizes dynamic buffering of aluminum strip tension and linkage adjustment of the entire line speed. The oscillating frame 1101 is equipped with two oscillating rollers 1104 to support the aluminum strip. When the aluminum strip tension fluctuates, it will pull the oscillating frame 1101 to oscillate around the fulcrum. The limit rod 1105 on the frame 1 limits the maximum oscillation stroke of the oscillating frame 1101 to prevent the aluminum strip from being overstretched or slack and accumulating. One end of the oscillating frame 1101 is coaxially equipped with a gear 1103 and connected to a pull rod rheostat 1102. The change of the oscillation angle of the oscillating frame 1101 will change the resistance value of the rheostat. The resistance signal is fed back to the whole machine controller in real time. The controller dynamically adjusts the speed of the motors of each unit of unwinding, slitting and cutting according to the signal, matches the line speed of the preceding and following processes, eliminates the tension difference of the entire line, and avoids the deformation of the aluminum strip leading to dimensional inaccuracies.

[0035] The cutting mechanism 9 includes a third support base 901, with a clamping plate 902 installed at the feed end of the third support base 901. The clamping plate 902 is adjustablely equipped with two limiting strips 903. The third support base 901 is equipped with a second upper glue roller 905 and a second lower glue roller. The third support base 901 is also equipped with a third adjusting knob 906 for adjusting the position of the second upper glue roller 905. A first synchronous pulley 904 is installed at one end of the second lower glue roller. A motor is installed on the third support base 901, and the motor drives the second synchronous pulley. Wheel 909 rotates; the cutting mechanism 9 also includes an upper blade holder 907, an upper cutting blade 908, a lower cutting blade 911, and a third connecting rod 912. The upper blade holder 907 is equipped with a cutting blade that cooperates with the lower cutting blade 911. One end of the upper blade holder 907 is equipped with the third connecting rod 912 via a pin. The third connecting rod 912 is connected to an eccentric shaft. One end of the eccentric shaft is equipped with a third synchronous pulley 910. The third synchronous pulley 910, the second synchronous pulley 909, and the first synchronous pulley 904 are connected by a synchronous belt. The cutting mechanism 9 uses synchronous feeding and linkage eccentric linkage shearing to achieve precise cutting to a fixed length. The motor on the third support base 901 drives the second synchronous pulley 909 to rotate. The synchronous belt synchronously drives the first synchronous pulley 904 and the third synchronous pulley 910 to rotate. The first synchronous pulley 904 drives the second lower rubber roller to complete the uniform feeding of the aluminum strip. The feeding action and the cutting action are completely synchronized. The feed end clamping plate 902 is equipped with two adjustable limit strips 903 to perform secondary lateral limit on the aluminum strip before cutting to ensure that the cutting end face is vertical and neat. The third adjustment knob 906 can adjust the clamping force of the second upper rubber roller 905 to stabilize the aluminum strip. The third synchronous pulley 910 drives the eccentric shaft to rotate. The eccentric shaft pushes and pulls the upper knife holder 907 to reciprocate through the third linkage 912, so that the upper cutting knife 908 and the lower cutting knife 911 periodically mesh to complete the cutting. The cutting length and width dimensions are stable by relying on synchronous transmission and mechanical limit.

[0036] The material tray assembly 7 includes a card holder 701, a material tray 702, a discharge baffle 703, and a first connecting seat 704. The first connecting seat 704 is mounted on the frame 1. A second connecting seat 706 is mounted on the bottom of one end of the material tray 702. An adjusting rod 705 for adjusting the distance between the material tray 702 and the discharge baffle 703 is installed between the first connecting seat 704 and the second connecting seat 706. The tray assembly 7 is used for positioning and storing the cut aluminum strips. The first connecting seat 704 is fixed to the main body of the frame 1. The bottom of the tray 702 is provided with a second connecting seat 706. An adjusting rod 705 is installed between the two. Rotating the adjusting rod 705 can change the distance between the tray 702 and the discharge baffle 703 to accommodate slit products of different widths. The discharge baffle 703 prevents the aluminum strips from shifting randomly. The clamping seat 701 works with the tray 702 to neatly store the processed aluminum strips. During the discharge stage, it continuously constrains the shape of the finished product to prevent the aluminum strips from shifting or bending at will, and ensures that the size and shape of the finished product do not change after discharge.

[0037] The working principle of this invention is as follows: The aluminum coil is sleeved outside the sleeve 208, and the rotating shaft 209 rotates on the first support 201 to realize material feeding; the nut at the end of the rotating shaft 209 axially adjusts the position of the sleeve 208 to adapt to aluminum coils of different widths. The hinge seat 206 pulls the first connecting rod 205 through the second connecting rod 207, driving the three arc-shaped plates 204 to expand outward synchronously and fit into the inner hole of the aluminum coil to complete self-centering; the limiting roller 202 at the top of the support seat fits the aluminum coil laterally to prevent lateral deviation, and the baffle 203 at the end of the hinge seat 206 prevents the aluminum coil from slipping axially, thus standardizing the initial conveying reference of the aluminum strip.

[0038] The aluminum strip passes through the straightening roller 305, and the sensor module 8 above the frame 1 collects the side offset signal of the aluminum strip in real time. The electric cylinder 302 on the fixed plate 301 receives the control signal and pushes and pulls the straightening frame 303 to slide along the guide rod 304. The guide sleeve cooperates with the guide rod 304 to ensure the straightness of the movement. The straightening roller 305 drives the aluminum strip to move left and right, correcting the aluminum strip to the center position and eliminating the lateral dimension deviation before slitting.

[0039] The corrected aluminum strip enters the second support seat 401. The drive assembly drives the upper blade group 408 to rotate, which in turn drives the lower blade group 411 to rotate synchronously in the opposite direction via a synchronous pulley and synchronous belt. The upper blade group 408 and the lower blade group 411 are fixed by the limiting ring 4081 to fix the distance between the blades 4082, thus achieving fixed-width slitting. The upper guide block 402 and the lower guide block 403 are arranged at an acute angle to guide the aluminum strip feeding. A buffer assembly 406 is installed between the lower roller seat 404 and the upper roller seat 407. The spring 4062 inside the buffer seat 4061 absorbs the cutting impact and suppresses blade vibration.

[0040] The first adjustment knob 409 adjusts the height of the guide roller 412 to change the cutting angle, and the second adjustment knob 410 finely adjusts the lateral position of the lower roller seat 404 to adapt to various slitting specifications.

[0041] After being cut, the aluminum strip is fed between the first lower rubber roller 501 and the first upper rubber roller 502. The lifting cylinder 503 drives the first upper rubber roller 502 to move up and down, adjusting the clamping gap between the two rubber rollers. The rubber rollers clamp the aluminum strip to smooth out warping, and rely on the friction of the roller surface to unify the conveying speed of the entire line, eliminating longitudinal length errors caused by aluminum strip slippage.

[0042] The aluminum strip is wound around the two swing rollers 1104 of the swing frame 1101. When the linear speeds of the preceding and following processes are mismatched, the change in aluminum strip tension causes the swing frame 1101 to swing. The gear 1103 at the end of the swing frame 1101 is linked to the pull rod rheostat 1102, and the swing angle is converted into a resistance signal that is fed back to the machine controller. The controller automatically adjusts the speed of the motors of each mechanism according to the signal to match the linear speed of the processes. The limit rod 1105 on the frame 1 limits the swing stroke of the swing frame 1101 to prevent the aluminum strip from being overstretched or slack.

[0043] Two parallel guide rods 601 are fixed to the frame. The slide plate 602 can slide laterally along the guide rods 601 to adapt to the width of the aluminum strip. The slider 603 on the slide plate 602 can be finely adjusted back and forth. The slider 603 is equipped with a photoelectric sensor 604 to continuously scan the aluminum strip and collect the conveying length signal in real time. When the aluminum strip reaches the preset cutting size, the photoelectric sensor 604 outputs a signal to start the cutting mechanism 9.

[0044] The motor on the third support 901 drives the second synchronous pulley 909, which in turn drives the first synchronous pulley 904 and the third synchronous pulley 910 to operate synchronously. The first synchronous pulley 904 drives the second lower rubber roller to convey the aluminum strip, and the third adjusting knob 906 adjusts the clamping force of the second upper rubber roller 905. The adjustable limit strip 903 on the feed end clamping plate 902 provides secondary lateral limit for the aluminum strip, ensuring a flat cutting end face. The third synchronous pulley 910 drives the eccentric shaft to rotate, and the eccentric shaft pushes and pulls the upper cutter holder 907 through the third connecting rod 912, so that the upper cutting blade 908 and the lower cutting blade 911 reciprocate to bite and cut, ensuring that the feeding and cutting actions are completely synchronized and guaranteeing the fixed length accuracy.

[0045] The cut aluminum strips fall into the tray 702. The first connecting seat 704 is fixed to the frame 1. An adjusting rod 705 is installed between the second connecting seat 706 and the first connecting seat 704 at the bottom of the tray 702. Rotating the adjusting rod 705 can adjust the distance between the tray 702 and the discharge baffle 703 to accommodate aluminum strips of different widths. The discharge baffle 703 restrains the aluminum strips to prevent them from scattering and bending. The clamping seat 701 works with the tray 702 to neatly store the finished products and maintain the stability of the finished product's size and shape.

[0046] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 precise positioning mechanism for aluminum coil slitting dimensions, comprising a frame (1), characterized in that: A correction mechanism (3) is installed at one end of the frame (1), and an unwinding mechanism (2) is provided at the end of the correction mechanism (3) away from the frame (1). A sensor module (8) is installed on the frame (1) above the correction mechanism (3). A slitting mechanism (4), a pressing roller mechanism (5), a photoelectric component (6), a cutting mechanism (9), and a tray assembly (7) are installed on the frame (1) in sequence. A guide roller (10) is installed between the pressing roller mechanism (5) and the photoelectric component (6) on the frame (1), and a swing roller assembly (11) is installed below the guide roller (10) on the frame (1). The unwinding mechanism (2) includes a first support base (201), an arc plate (204), a hinge base (206), a sleeve (208), and a rotating shaft (209). The first support base (201) is rotatably mounted with the rotating shaft (209). The hinge base (206) is mounted in the middle of the rotating shaft (209). The sleeve (208) is mounted at one end of the rotating shaft (209). A nut for adjusting the position of the sleeve (208) is mounted at one end of the rotating shaft (209). Three arc plates (204) are evenly spaced on the outer side of the sleeve (208). The arc plates (204) are connected to the sleeve (208) through two first connecting rods (205). The hinge base (206) is connected to the middle of one of the first connecting rods (205) through a second connecting rod (207). A limiting roller (202) that rolls in contact with the aluminum coil is mounted on the top of the support base. The slitting mechanism (4) includes a second support base (401), an upper blade assembly (408), and a lower blade assembly (411). The second support base (401) is equipped with multiple upper guide blocks (402) at equal intervals on one side of the upper blade assembly (408), and the second support base (401) is equipped with multiple lower guide blocks (403) at equal intervals on one side of the lower blade assembly (411). The included angle between the lower guide blocks (403) and the upper guide blocks (402) is an acute angle.

2. The aluminum coil slitting size precision positioning mechanism according to claim 1, characterized in that: The two ends of the first connecting rod (205) are connected to the sleeve (208) and the arc plate (204) respectively by pins. The two ends of the second connecting rod (207) are connected to the hinge seat (206) and the first connecting rod (205) respectively by pins. A baffle (203) is installed at one end of the hinge seat (206).

3. The aluminum coil slitting size precision positioning mechanism according to claim 1, characterized in that: The second support base (401) has lower roller seats (404) installed at both ends, and upper roller seats (407) are slidably installed above the lower roller seats (404) at both ends of the second support base (401). A buffer assembly (406) is installed between the upper roller seats (407) and the lower roller seats (404). The second support base (401) is equipped with a second adjusting knob (410) for adjusting the lower roller seats (404). The upper cutter group (408) is rotatably mounted on the two upper roller seats (404). 07) The lower cutter group (411) is rotatably mounted on two lower roller seats (404), the upper cutter group (408) is driven by a drive assembly, and the upper cutter group (408) and the lower cutter group (411) are connected by a synchronous pulley and a synchronous belt; the second support seat (401) is located on one side of the upper cutter group (408) and an adjustable guide roller (412) is mounted thereon, and the second support seat (401) is equipped with a first adjustment knob (409) for adjusting the height of the guide roller (412).

4. The aluminum coil slitting size precision positioning mechanism according to claim 3, characterized in that: The buffer assembly (406) includes a buffer seat (4061) and a spring (4062), the spring (4062) being located between the two buffer seats (4061); the upper cutter group (408) and the lower cutter group (411) each include a limiting ring (4081) and a cutting tool (4082).

5. The aluminum coil slitting size precision positioning mechanism according to claim 1, characterized in that: The correction mechanism (3) includes a fixed plate (301), an electric cylinder (302), and a correction frame (303). The fixed plate (301) is equipped with an electric cylinder (302) that drives the correction frame (303) to move back and forth. The two ends of the electric cylinder (302) are connected to the fixed plate (301) and the correction frame (303) respectively through pins. The fixed plate (301) is equipped with a guide rod (304). The correction frame (303) is equipped with a guide sleeve that cooperates with the guide rod (304). The correction frame (303) is equipped with a correction roller (305).

6. The aluminum coil slitting size precision positioning mechanism according to claim 1, characterized in that: The pressing roller mechanism (5) includes a first lower roller (501), a first upper roller (502) and a lifting cylinder (503). The first lifting cylinder (503) drives the first upper roller (502) to rise and fall, thereby adjusting the distance between the first lower roller (501) and the first upper roller (502).

7. The aluminum coil slitting size precision positioning mechanism according to claim 1, characterized in that: The photoelectric component (6) includes a sliding plate (602) and two parallel light rods (601). The sliding plate (602) is slidably mounted on the two light rods (601). A slider (603) is adjustablely mounted on the sliding plate (602), and a photoelectric sensor (604) is mounted on the slider (603).

8. The aluminum coil slitting size precision positioning mechanism according to claim 1, characterized in that: The swing roller assembly (11) includes a limiting rod (1105), a swing frame (1101), and a pull rod rheostat (1102). The swing frame (1101) is equipped with two swing rollers (1104). A gear (1103) is installed at one end of the swing frame (1101). The pull rod rheostat (1102) drives the swing frame (1101) to swing. The frame (1) is equipped with a limiting rod (1105) to limit the swing frame (1101).

9. The aluminum coil slitting size precision positioning mechanism according to claim 1, characterized in that: The material tray assembly (7) includes a card holder (701), a material tray (702), a discharge baffle (703), and a first connecting seat (704). The first connecting seat (704) is mounted on the frame (1). A second connecting seat (706) is mounted on the bottom of one end of the material tray (702). An adjusting rod (705) for adjusting the distance between the material tray (702) and the discharge baffle (703) is installed between the first connecting seat (704) and the second connecting seat (706).

10. The aluminum coil slitting size precision positioning mechanism according to claim 1, characterized in that: The cutting mechanism (9) includes a third support base (901), a clamping plate (902) is installed at the feeding end of the third support base (901), and two limiting strips (903) are adjustablely installed on the clamping plate (902); a second upper glue roller (905) and a second lower glue roller are installed on the third support base (901), a third adjusting knob (906) for adjusting the position of the second upper glue roller (905) is installed on the third support base (901), a first synchronous pulley (904) is installed at one end of the second lower glue roller, and a motor is installed on the third support base (901), the motor driving the second synchronous pulley (904). 909) Rotation; The cutting mechanism (9) further includes an upper knife holder (907), an upper cutting blade (908), a lower cutting blade (911) and a third connecting rod (912). The upper knife holder (907) is equipped with a cutting blade that cooperates with the lower cutting blade (911). The third connecting rod (912) is installed at one end of the upper knife holder (907) through a pin. The third connecting rod (912) is connected to an eccentric shaft. A third synchronous pulley (910) is installed at one end of the eccentric shaft. The third synchronous pulley (910), the second synchronous pulley (909) and the first synchronous pulley (904) are connected by a synchronous belt.

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