Automatic waste removal and rewinding system and die-cutting machine using it

Abstract

This invention provides an automatic waste removal and rewinding system and a die-cutting machine using the same, relating to the field of die-cutting machine production technology. The system includes: a first base; a film supply unit disposed on the first base for providing film strips; a guiding unit disposed on the first base for guiding waste strips and bonding them non-adhesively with the film strips to form composite strips, and adjusting the strip tension; a roll-changing module disposed on the first base, including a rotating arm and a first and second take-up drum symmetrically mounted at both ends of the rotating arm, wherein the first and second take-up drums are vacuum adsorption rollers; and a cutting module disposed close to the roll-changing module. The dual-station roll-changing module enables roll-changing without downtime, and, combined with the stable winding of the vacuum adsorption take-up rollers, significantly improves production efficiency.

Description

Technical Field

[0001] This invention relates to the field of die-cutting machine manufacturing technology, and more specifically, to an automatic waste discharge and rewinding system and a die-cutting machine using the same. Background Technology

[0002] Die-cutting machines are widely used processing equipment in industries such as packaging, printing, electronics, and medical. They are mainly used for punching, creasing, and slitting rolls of materials such as films, paper, and composite materials. During the die-cutting process, in addition to obtaining the desired product shape, a continuous mesh or skeleton-like waste strip is generated. Traditional die-cutting machines are usually equipped with simple winding devices to collect the waste, or the waste is cleaned up manually.

[0003] However, existing waste disposal methods have the following prominent problems: the waste strip itself has low strength, and it is prone to breakage, especially during high-speed operation or tension fluctuations, leading to production interruptions and requiring manual intervention for splicing, which seriously affects production efficiency and continuity. The winding device is mostly a single-station structure, requiring a shutdown for manual roll replacement after a full roll is wound, resulting in reduced equipment utilization and difficulty in meeting the needs of modern continuous production.

[0004] Therefore, there is an urgent need for an automated waste discharge and rewinding system that can achieve high-strength continuous conveying of waste strips, automatic roll changing, stable tension control, and intelligent integration with the die-cutting host, so as to improve the overall efficiency, stability and automation level of die-cutting production. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide an automatic waste discharge and rewinding system and a die-cutting machine using it, which solves the problems of low roll changing efficiency and material strip breakage affecting production during rewinding.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An automatic waste removal and rewinding system includes: a first base; a film supply unit disposed on the first base for providing high-strength film strip; a guiding unit disposed on the first base for guiding the waste strip and bonding it with the film strip in a non-adhesive manner to form a composite strip, and adjusting the tension of the strip; a roll-changing module disposed on the first base, including a rotating arm and a first winding drum and a second winding drum symmetrically installed at both ends of the rotating arm, wherein the first winding drum and the second winding drum are vacuum adsorption rollers; a cutting module disposed near the roll-changing module; and a control system; the control system is configured to: when the roll on the first winding drum or the second winding drum reaches full roll, control the rotating arm to rotate to switch the winding position, and control the cutting module to cut the composite strip, thereby achieving automatic roll changing without stopping the machine.

[0008] According to one embodiment of the present invention, during winding, the film tape covers the waste tape and is fixed by vacuum adsorption roller, so that the film tape presses the waste tape tightly against the surface of the winding roller.

[0009] According to one embodiment of the present invention, the film supply unit includes a film reel and a film guide roller; the guiding unit includes a composite roller, a guide roller, a tension adjusting roller, and a waste strip guide roller; the film strip is drawn from the film reel, passes through the tension adjusting roller, the guide roller, and the film guide roller in sequence, and then reaches the composite roller; the waste strip is introduced into the composite roller through the waste strip guide roller, and achieves non-adhesive composite with the film strip under the action of roller pressure.

[0010] According to one embodiment of the present invention, the cutting module includes a swingable support bracket, a first telescopic rod for driving the support bracket to swing, a second telescopic rod disposed at the end of the support bracket, a blade holder connected to the second telescopic rod, a cutting blade slidably disposed on the blade holder, a third cylinder for driving the cutting blade, and a pressure roller for pressing the composite strip against the current take-up roller surface before cutting.

[0011] According to one embodiment of the present invention, a broken tape repair unit is further included, the broken tape repair unit comprising: an auxiliary pressing module disposed above the composite material tape for pressing the film tape during the repair process; an adhesive tape module disposed below the composite material tape for providing splicing adhesive tape; and an bonding module disposed below the composite material tape for transferring and bonding adhesive tape; the control system is further configured to: control the broken tape repair unit to perform an automatic splicing operation when a break in the waste material tape is detected.

[0012] According to one embodiment of the present invention, a tape breakage detection and positioning mechanism is further included. The mechanism includes a displacement module disposed on a first base, a support rod driven by the displacement module, and a tape breakage detection module disposed on the support rod. The control system is signal-connected to the tape breakage detection module and the displacement module, and is configured to control the displacement module to drive the support rod to move after receiving a tape breakage signal, so as to lift and reset the broken end of the waste tape.

[0013] According to one embodiment of the present invention, the tape module includes a second base, a tape feeding mechanism, a shearing mechanism, and a clamping mechanism for clamping the tape end; the bonding module includes a vacuum suction seat and a sliding module for driving its movement; the control system is configured to control the clamping mechanism to pull the tape out from the tape feeding mechanism, control the shearing mechanism to cut the tape, and control the bonding module to transfer and bond the tape segment to the cut point.

[0014] According to one embodiment of the present invention, the clamping mechanism includes a clamping cylinder, a clamping head, a motor, and a gear; a rack is provided on the second base, and the gear on the output shaft of the motor meshes with the rack to drive the clamping mechanism to move horizontally along the conveying direction of the composite material belt.

[0015] According to one embodiment of the present invention, the tension adjusting roller is vertically slidably disposed on the side wall of the first base via a slider mechanism and is signal-connected to the control system; the control system is configured to dynamically adjust the position of the tension adjusting roller according to the tension feedback signal to maintain constant tension of the film strip.

[0016] The present invention provides a die-cutting machine, including a die-cutting machine body. The waste discharge end of the die-cutting machine body is provided with a first sliding adjustment seat and a second sliding adjustment seat for installing the automatic waste discharge and rewinding system. The automatic waste discharge and rewinding system can be aligned and connected with the waste discharge outlet of the die-cutting machine body to realize the continuous reception and processing of waste strips.

[0017] In summary, this application includes at least one of the following beneficial technical effects:

[0018] 1. In this solution, a dual-station roll changing module is used to achieve roll changing without stopping, and with the stable winding of the vacuum adsorption take-up roller, production efficiency is greatly improved.

[0019] 2. In this solution, the film tape and the waste tape are bonded together without adhesive. The high tensile strength of the film improves the overall tensile strength of the tape, reducing the risk of tape breakage.

[0020] 3. In this solution, the automatic repair system for broken conveyor belts can quickly reconnect broken waste conveyor belts, reducing downtime and improving equipment operational stability.

[0021] 4. In this solution, the tension adjusting roller and the guide roller work together to achieve dynamic tension balance, ensuring stable tension during the conveying and winding of the material belt. Attached Figure Description

[0022] Figure 1 This is a structural diagram of the automatic waste removal and rewinding system of the present invention;

[0023] Figure 2 This is a partial cross-sectional view of the automatic waste removal and rewinding system of the present invention;

[0024] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0025] Figure 4 This is a partial cross-sectional view of the automatic waste removal and rewinding system of the present invention from another perspective;

[0026] Figure 5This is a diagram showing the working status of the automatic waste removal and rewinding system of the present invention during the roll changing process;

[0027] Figure 6 This is a diagram showing the working status of the automatic waste removal and rewinding system of the present invention at the end of the roll change.

[0028] Figure 7 This is a structural diagram of the tape module and the bonding module in the automatic waste removal and rewinding system of the present invention;

[0029] Figure 8 This is a split structural diagram of the tape feeding mechanism and the shearing mechanism in the tape module of the present invention;

[0030] Figure 9 This is a diagram showing the working coordination between the clamping head and the discharge head in the automatic waste discharge and rewinding system of the present invention.

[0031] Figure 10 for Figure 7 A partial cross-sectional structural diagram;

[0032] Figure 11 This is a structural diagram of the cutting module in this invention;

[0033] Figure 12 This is a structural diagram of the tape feeding mechanism and shearing mechanism in the tape module of the present invention in the remedial working state;

[0034] Figure 13 This is a structural diagram of the interruption band detection and positioning mechanism of the present invention;

[0035] Figure 14 This is a structural diagram of the die-cutting machine in this invention.

[0036] Figure label:

[0037] 1. First base; 101. Clearance groove;

[0038] 2. Winding module; 201. Rotating arm; 202. First take-up drum; 203. Second take-up drum;

[0039] 3. Film reel;

[0040] 4. Auxiliary clamping module; 401. Sliding module; 402. Fixing frame; 403. First cylinder; 404. Auxiliary pressure plate;

[0041] 5. Tape module; 501. Second base; 5011. Support base; 502. Clamping mechanism; 5021. Clamping cylinder; 5022. Clamping head; 5023. Motor; 5024. Gear; 503. Tape feeding mechanism; 5031. Tape shaft; 5032. Tape paper; 5033. Discharge head; 50331. Notch; 50332. Discharge groove; 504. Shearing mechanism; 5041. Shearing seat; 50411. Discharge channel; 5042. Shearing blade; 5043. Blade holder; 5044. Mounting plate; 5045. Second cylinder; 5046. Connecting plate; 505. Rack;

[0042] 6. Bonding module; 601. Horizontal sliding module; 602. Vertical sliding module; 603. Vacuum suction base;

[0043] 7. Cutting module; 701. Support bracket; 702. First telescopic rod; 703. Second telescopic rod; 704. Blade holder; 705. Cutting blade; 706. Third cylinder; 707. Pressure roller;

[0044] 8. Film guide roller; 9. Composite roller; 10. Guide roller; 11. Tension adjusting roller; 12. Waste belt guide roller; 13. Film belt; 14. Waste belt;

[0045] 15. Die-cutting machine body; 1501. First sliding adjustment seat; 1502. Second sliding adjustment seat;

[0046] 16. Displacement module; 17. Support rod; 18. Belt breakage detection module; 19. Belt breakage support roller. Detailed Implementation

[0047] 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 some embodiments of the present invention, and not all embodiments. 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.

[0048] Example 1 addresses the problems of low strength and easy breakage of waste tape in existing technologies, as well as low production efficiency due to downtime required for winding and rewinding. It provides a basic architecture for a highly reliable and continuously operating automatic waste removal and rewinding system. By introducing a high-strength film tape and a non-adhesive composite with the waste tape, the overall tensile strength is enhanced. A dual-station vacuum adsorption winding mechanism enables online, downtime-free rewinding, significantly improving the continuity and efficiency of waste recycling.

[0049] See Figure 1The automatic waste removal and rewinding system provided in this embodiment mainly includes a first base 1, which serves as the main support structure of the system and integrates a film supply unit, a guiding unit, a roll-changing module 2, and a cutting module 7. The film supply unit includes a film reel 3 and a film guide roller 8, used to supply and guide high-strength film strip 13. The guiding unit includes a composite roller 9, a guide roller 10, a tension adjusting roller 11, and a waste strip guide roller 12, used to guide waste strip 14 and composite it with the film strip 13, while precisely controlling the strip tension. The roll-changing module 2 has a first take-up drum 202 and a second take-up drum 203, both of which are vacuum adsorption rollers, symmetrically mounted on a rotating arm 201. The rotation of the rotating arm 201 enables the switching of the take-up position. The cutting module 7 is located close to the roll-changing module 2 and is used to accurately cut the composite strip during the roll-changing process.

[0050] First, the film roll loaded on the film reel 3 is drawn out. The film strip 13, after being guided and flattened by the tension adjusting roller 11, guide roller 10, and film guide roller 8, is conveyed to the roller surface of the composite roller 9. This path design ensures that the film strip remains flat and under appropriate tension before entering the lamination process. Simultaneously, the waste strip 14 generated from the die-cutting process is precisely introduced into the same roller surface position of the composite roller 9 by the waste strip guide roller 12, at which point the film strip 13 covers the upper surface of the waste strip 14. Under the rolling pressure and traction of the composite roller 9, the film strip 13 and the waste strip 14 achieve a non-adhesive physical composite at the roller surface, forming a composite strip with the high-strength film strip 13 as its "skeleton." This composite method not only significantly improves the overall tensile strength of the waste strip 14, effectively reducing the risk of breakage due to tension fluctuations during subsequent high-speed transport, but also avoids problems such as pollution, increased costs, and subsequent separation difficulties associated with using adhesives.

[0051] The film reel 3 is mounted on one side of the top of the first base 1. The guide roller 10 and tension adjusting roller 11 are both located below the film reel 3, with the tension adjusting roller 11 generally located below the guide roller 10. The tension adjusting roller 11 is vertically slidably mounted on the side wall of the first base 1 via a slider mechanism. Its position can be dynamically adjusted by a servo motor or pneumatic device based on the tension signal detected by the system. The film guide roller 8 is located below the guide roller 10 and the tension adjusting roller 11. As the film belt 13 passes sequentially through the tension adjusting roller 11, the guide roller 10, and the film guide roller 8, the tension of the film belt 13 can be adjusted in real time by changing the vertical position of the tension adjusting roller 11. In this embodiment, the tension adjusting roller 11 can dynamically adjust its position according to a preset tension value, cooperating with the fixed-position guide roller 10 to form a closed-loop tension balance zone, ensuring that the film belt 13 maintains a constant and suitable tension before entering the lamination process, laying the foundation for subsequent stable lamination and winding.

[0052] See Figure 2The composite strip is then conveyed to the rewinding module 2 for winding. The core purpose of the rewinding module 2 is to achieve online, non-stop rewinding, eliminating the bottleneck of having to stop the machine to change the roll during traditional single-roll winding. The rewinding module 2 includes a rotating arm 201 that can rotate around its own axis, and a first winding drum 202 and a second winding drum 203 symmetrically installed at both ends of the rotating arm 201. Both winding drums adopt a vacuum adsorption roller structure, with a negative pressure generating device (such as a vacuum pump connection) inside, and adsorption holes distributed on the roller surface. At the beginning of winding, the starting end of the composite strip is adsorbed by negative pressure, ensuring reliable winding start and no slippage.

[0053] In this embodiment, refer to Figure 4 The winding operation is performed in the order of film strip 13 covering waste strip 14. This layering sequence allows the adsorption holes on the surface of the vacuum adsorption roller to firmly adsorb the uppermost film strip 13 onto the winding roller. Because the film strip 13 presses the waste strip 14 tightly against the surface of the winding roller, one end of the composite strip is firmly fixed by the vacuum adsorption and the pressing action of the film strip. At this point, the winding roller can rotate to begin stable winding. This design cleverly utilizes the covering characteristics of the film strip to enhance the grip on the waste strip and prevent interlayer slippage or loosening during winding.

[0054] See Figure 11 The cutting module 7 is responsible for precisely cutting the composite strip during roll changeover, and its design must also meet the requirement of not affecting the movement of adjacent mechanisms. The cutting module 7 includes a support bracket 701, a first telescopic rod 702, a second telescopic rod 703, a blade holder 704, a cutting blade 705, a third cylinder 706, and a pressure roller 707. One end of the support bracket 701 is mounted on the first base 1 via a rotating shaft and bearing seat, allowing it to swing slightly around the shaft. One end of the first telescopic rod 702 (usually a cylinder or hydraulic cylinder) is hinged to the inner wall of the first base 1, and the other end is hinged to the side of the support bracket 701, used to drive the support bracket 701 to swing. Two second telescopic rods 703 are connected to the end of the support bracket 701 away from the rotating shaft, and their extension and retraction directions are perpendicular to the axis of the rotating shaft. The extension and retraction ends of the second telescopic rods 703 are connected to the blade holder 704. A cutting blade 705 is slidably mounted on the blade holder 704 along the width direction of the strip. The third cylinder 706 is fixed on the blade holder 704, and its telescopic end is fixedly connected to one end of the cutting blade 705, driving the cutting blade 705 to slide along the blade holder 704 to complete the cutting action. A pressure roller 707 is also provided on the upper surface end of the blade holder 704, which is used to press the composite strip onto the surface of the currently working take-up roller before cutting, ensuring accurate positioning of the strip at the moment of cutting and avoiding springback or deviation.

[0055] During the cutting of the composite strip, the first telescopic rod 702 is activated, driving the support bracket 701 to swing, causing the pressure roller 707 at its end to press the composite strip firmly against the surface of the current take-up roller (e.g., the first take-up drum 202). Next, the current take-up roller initiates vacuum adsorption, firmly adsorbing and fixing the composite strip onto its own roller surface. At this point, the third cylinder 706 is activated, driving the cutting blade 705 to extend rapidly and slide along the blade holder 704, completing the cutting of the composite strip. The entire cutting process is smooth and rapid, creating conditions for station switching.

[0056] See Figure 5 and Figure 6 The automatic roll changing process is described in detail below. Assume that the first take-up drum 202 is currently performing the winding operation. Under normal operating conditions, the first take-up drum 202 continuously winds the composite strip, while the second take-up drum 203 is in a ready-to-go, idle state. When the roll on the first take-up drum 202 reaches the preset full roll value, the control system triggers the automatic roll changing procedure, as follows:

[0057] First, the control system commands the rotating arm 201 to rotate clockwise (or counterclockwise according to the design) around its axis. The rotating arm 201 drives the first take-up drum 202 and the second take-up drum 203 on it to rotate together. Second, when the rotating arm 201 rotates until the second take-up drum 203 reaches the upper main take-up station and the first take-up drum 202 moves to a position close to the cutting module 7, the rotation stops. At this time, the roller surface of the second take-up drum 203 is close to the running composite strip. Then, the second take-up drum 203 immediately activates its vacuum adsorption function to adsorb the composite strip onto its roller surface. Almost simultaneously, the cutting module 7 operates according to the above process, cutting the section of composite strip located between the first take-up drum 202 and the second take-up drum 203. After cutting, the second take-up drum 203 begins to rotate, officially taking over the take-up work and entering the main take-up station. The first winding drum 202, which has been cut and fully wound, is then moved to the unloading station (usually a lower or side position for easy access) by the rotating arm 201, waiting for the operator to remove the fully wound waste material roll and to place the empty core back in. The entire roll changing process in this embodiment is smooth and continuous, without requiring a complete shutdown of the equipment, achieving true online roll changing and greatly improving equipment utilization and production efficiency.

[0058] Example 2: Although Example 1 significantly reduced the breakage rate through the thin-film reinforced composite design, in actual industrial production, waste tape may still break due to extreme conditions such as material defects, abnormal tensile impact, or foreign object intrusion. Traditional handling methods require manual intervention for inspection and reconnection, resulting in long downtime and impacting production cycle. Therefore, this example, based on the stable waste discharge and rewinding system provided in Example 1, further integrates intelligent tape breakage detection and automatic repair functions to minimize downtime caused by unexpected tape breaks and improve equipment operational reliability.

[0059] The tape breakage repair unit added in this embodiment includes an auxiliary pressing module 4, a tape module 5, and a bonding module 6. These modules are all rationally arranged on the first base 1 and work in conjunction with the main conveying path. They can respond quickly after a tape breakage is detected and perform automatic reconnection operations.

[0060] See Figure 3 The auxiliary pressing module 4 is located above the composite strip. Its core function is to press down the film strip 13 during the repair process, providing a stable support surface for the adhesive tape below. The auxiliary pressing module 4 consists of a sliding module 401, a fixing frame 402, a first cylinder 403, and an auxiliary pressure plate 404. The sliding module 401 (which can be a linear module or a cylinder-driven slider) is horizontally installed on the inner wall of the first base 1. The driving end of the sliding module 401 is connected to an L-shaped fixing frame 402. The first cylinder 403 is vertically fixed on the fixing frame 402, with its telescopic end facing downwards and the auxiliary pressure plate 404 installed at its end. The sliding module 401 can drive the entire pressing mechanism to move horizontally to a designated position above the break, and then the first cylinder 403 drives the auxiliary pressure plate 404 to press down, stably pressing down the film strip 13.

[0061] See Figure 4 and Figure 7 The tape module 5 and the bonding module 6 are positioned below the composite tape and are responsible for providing and bonding the tape for splicing. The tape module 5 includes a second base 501, a clamping mechanism 502, a tape feeding mechanism 503, and a shearing mechanism 504. All mechanisms are integrated on the second base 501, resulting in a compact structure. The clamping mechanism 502, the tape feeding mechanism 503, and the shearing mechanism 504 are approximately at the same height, with the clamping mechanism 502 and the tape feeding mechanism 503 located on either side of the shearing mechanism 504. The bonding module 6 includes a horizontal sliding module 601 and a vertical sliding module 602. The horizontal sliding module 601 is mounted on the first base 1, and the vertical sliding module 602 is mounted on the moving end of the horizontal sliding module 601. The moving end of the vertical sliding module 602 is also connected to a vacuum suction seat 603, driving the vacuum suction seat 603 to move horizontally and vertically. (See reference...) Figure 1 In the bottom area, the first base 1 is also provided with a relief groove 101 to avoid the movement of the vertical sliding module 602 in the bonding module 6, thus ensuring the reliability of operation.

[0062] The clamping mechanism 502 includes a clamping cylinder 5021, a clamping head 5022, a motor 5023, and a gear 5024. The clamping cylinder 5021 is slidably mounted on a track on the inner wall of the second base 501 via a bracket. A support base 5011 is fixed to the open side of the second base 501, on which a rack 505 is mounted. The motor 5023 is fixed to the bracket of the clamping cylinder 5021, and the gear 5024 on its output shaft meshes with the rack 505. By starting the motor 5023 and reversing it, the entire clamping mechanism 502 can be driven to move horizontally and precisely along the direction of the composite material conveying belt, ensuring that the clamping head 5022 can accurately reach the glue-picking position and the glue-feeding position.

[0063] The shearing mechanism 504 is fixed to one end of the second base 501, and the tape feeding mechanism 503 is mounted on the shearing mechanism 504. (See reference...) Figure 8 The shearing mechanism 504 includes a shearing seat 5041, a shearing blade 5042, a blade holder 5043, a mounting plate 5044, a second cylinder 5045, and a connecting plate 5046. The shearing seat 5041 has a discharge channel 50411. The shearing blade 5042 is vertically slidably mounted within the shearing seat 5041 via the blade holder 5043 and can be driven into the discharge channel 50411. The connecting plate 5046 is fixed to the bottom end of the shearing blade 5042. The second cylinder 5045 is mounted below the shearing seat 5041 via the mounting plate 5044, with its piston rod facing upwards and fixed to the connecting plate 5046. Activating the second cylinder 5045 drives the shearing blade 5042 to move up and down, performing the shearing action.

[0064] The tape feeding mechanism 503 includes a tape shaft 5031, tape 5032 wound on it, and a discharge head 5033. The tape shaft 5031 is mounted via a fixed shaft, and the tape 5032 has retaining rings on both sides for limiting movement. The discharge head 5033 is installed within the discharge channel 50411, and its structure does not obstruct the up-and-down movement of the shearing blade 5042. (See reference...) Figure 9 The discharge head 5033 has a discharge groove 50332 for the front end of the adhesive tape 5032 to pass through, and a specially shaped notch 50331 is provided near the outlet end. The shape of the notch 50331 matches the shape of the gripper of the clamping head 5022, so that the clamping head 5022 can accurately extend into the notch and clamp the end of the adhesive tape exposed at the notch.

[0065] Further, see Figure 4 , Figure 5 and Figure 6 The system is also equipped with a belt breakage detection and positioning mechanism. A groove is formed on the side wall of the first base 1, below the composite strip, housing a displacement module 16 (such as an electric slide table). Combined with... Figure 13The moving end of the displacement module 16 is connected to a support rod 17, which is arranged perpendicular to the conveying direction of the material strip. A broken strip detection module 18 is installed on the support rod 17, positioned directly below the composite material strip. The broken strip detection module 18 is preferably a through-beam photoelectric sensor or a high-speed vision camera, which can continuously monitor whether the waste strip 14 is in place. If the waste strip 14 breaks, its broken end will hang down onto the support rod 17, blocking the light path or being identified by the vision system, thereby triggering a broken strip signal. To facilitate the movement of the waste strip 14 by the support rod 17 and its contact with the upper film strip 13, a broken strip support roller 19 is provided on the upper end face of the support rod 17 to support the material strip.

[0066] When the belt breakage detection module 18 detects a break in the waste belt 14, the system immediately enters the automatic repair process. The specific steps are as follows:

[0067] Step 1: Broken End Positioning and Initial Reset. The control system activates the displacement module 16, driving the support rod 17 to move horizontally. The support rod 17 supports the broken end of the waste strip 14 near the composite roller 9, moving it along the original path of the strip to roughly restore it to its pre-breakage height and horizontal position, bringing it back into close contact with the film strip 13 above, preparing it for subsequent tape application. This step quickly handles drooping broken ends, preventing them from interfering with other components.

[0068] Step Two: Upper Surface Pressing and Fixing. Activate the auxiliary pressing module 4. The sliding module 401 first drives the fixing frame 402 to move horizontally, causing the auxiliary pressure plate 404 to move to the corresponding upper position between the composite roller 9 and the broken end of the waste tape supported by the support rod 17. Next, the first cylinder 403 drives the auxiliary pressure plate 404 to move downwards, pressing the upper surface of the film tape 13 to keep it flat and stable in the repair area, providing a reliable base for tape adhesion.

[0069] Step 3: Tape Extraction and Preparation. (See attached document) Figure 12 The motor 5023 of the clamping mechanism 502 starts, and through the meshing of the gear 5024 and rack 505, drives the clamping cylinder 5021 and the clamping head 5022 to move horizontally to the outlet of the discharge channel 50411. The clamping cylinder 5021 actuates, causing the grippers of the clamping head 5022 to extend into the notch 50331 of the discharge head 5033, clamping the end of the tape that has been pulled out from the tape 5032 and is now resting at the notch. Subsequently, the clamping head 5022, holding the tape end, moves backward (away from the discharge head), pulling out a section of tape of the required length from the discharge channel.

[0070] Step 4: Tape Cutting and Transfer. Driven by the combined forces of the horizontal sliding module 601 and the vertical sliding module 602, the vacuum suction seat 603 of the bonding module 6 moves to below the pulled-out tape segment. The vacuum suction seat 603 activates a vacuum, sucking up the lower surface of the tape segment. Then, the second cylinder 5045 of the cutting mechanism 504 actuates, driving the cutting blade 5042 to move rapidly upwards, cutting the tape segment sucked by the vacuum suction seat 603 and the subsequent tape roll within the discharge channel 50411. After cutting, the clamping head 5022 of the clamping mechanism 502 releases the tape and moves to avoid it.

[0071] Step 5: Tape bonding repair completed. The bonding module 6 drives the vacuum suction seat 603, which holds the tape segment, to the broken end of the waste tape 14, i.e., the repair position directly below the auxiliary pressure plate 404. The vertical sliding module 602 drives the vacuum suction seat 603 to rise, pressing the tape segment against the bonding point between the broken waste tape and the film tape 13. During this process, the tape simultaneously bonds the waste tape and the film tape, firmly connecting them together. After the vacuum is released, the vacuum suction seat 603 descends and returns to its original position. Subsequently, the first cylinder 403 of the auxiliary pressing module 4 retracts, the auxiliary pressure plate 404 rises, and the sliding module 401 drives it to reset. The displacement module 16 also drives the support rod 17 back to the initial detection position. After the system checks that the connection is secure, normal winding operation resumes.

[0072] The entire repair process is highly automated and responds quickly, greatly reducing downtime caused by belt breakage and ensuring production continuity. Example

[0073] This embodiment aims to solve the problem of efficient and flexible integration between an automatic waste removal and rewinding system and a die-cutting main machine. In automated production lines, the physical connection and functional coordination between equipment are crucial. Traditionally, auxiliary machines and main machines are often arranged independently and connected manually or through simple mechanical means, resulting in drawbacks such as poor connection accuracy, difficulty in adjustment, large space occupation, and low coordination efficiency. This embodiment provides a modular and adjustable integration solution, enabling the automatic waste removal and rewinding system of this invention to be flexibly and stably integrated into various models of die-cutting machines as a standard functional module, achieving seamless connection and intelligent linkage between waste treatment and the main process.

[0074] See Figure 14 This automatic waste removal and rewinding system can be integrated into the die-cutting machine body 15 as an independent functional module. The die-cutting machine body 15 has a specially designed integration interface area on the side or rear of its frame, where a first sliding adjustment seat 1501 and a second sliding adjustment seat 1502 are located. These sliding adjustment seats are essentially mounting plates with elongated waist-shaped holes, T-slots, or precision linear guides, allowing for fine-tuning of position in multiple directions (front and back, left and right, up and down).

[0075] The first base 1 of the entire waste discharge and rewinding system is connected to these sliding adjustment seats via high-strength bolts and other fasteners. During installation, depending on the specific model of the die-cutting machine, the position of the die-cutting blade, and the height and direction of the waste discharge outlet, technicians can loosen the fasteners to adjust the position of the first base 1 relative to the sliding adjustment seats to achieve precise alignment. This ensures that the waste strip 14 continuously drawn from the waste outlet of the die-cutting machine can better enter the waste strip guide roller 12 of the waste discharge and rewinding system, avoiding jamming, deviation, or excessive stretching of the waste strip during the introduction stage.

[0076] The integrated system achieves deep collaboration in its workflow. After the die-cutting machine completes the die-cutting operation, the main products (such as die-cut labels and parts) are collected by the main machine's receiving mechanism. Simultaneously, the generated continuous mesh or skeleton-like waste material (i.e., waste strip 14) is automatically fed into the integrated waste removal and rewinding system. The waste removal and rewinding system performs real-time reinforcement lamination, tension control, and continuous rewinding of the waste strip, and is prepared to perform automatic repair of broken strips. The die-cutting machine body 15 and the waste removal and rewinding system are linked and controlled through a unified electrical control system, enabling functions such as synchronized start / stop signals, matching operating speeds, tension feedback linkage, and fault interlocking (e.g., if one fails, the other safely stops), forming an intelligent production unit.

[0077] This waste discharge and rewinding system can be adapted to die-cutting machines of different brands, models, and process layouts by adjusting the mounting interface of the first base 1 or the specifications of the sliding adjustment seat. Its principle can also be applied to other processing equipment that generates continuous waste, such as slitting machines, punching machines, and printing machines, to achieve a standardized solution for automatic waste recycling.

[0078] Finally, it should be noted that the above 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. An automatic waste discharge and rewinding system, characterized in that, include: First base (1); A film supply unit is disposed on the first base (1) and is used to supply a film strip (13). A guiding unit is disposed on the first base (1) for guiding the waste strip (14) and bonding it with the film strip (13) without adhesion to form a composite strip, and for adjusting the tension of the strip. The roll changing module (2) is set on the first base (1) and includes a rotating arm (201) and a first take-up drum (202) and a second take-up drum (203) symmetrically installed at both ends of the rotating arm (201). The first take-up drum (202) and the second take-up drum (203) are vacuum adsorption rollers. The trimming module (7) is positioned close to the roll changing module (2); and Control system; The control system is configured to: when the material roll on the first winding drum (202) or the second winding drum (203) reaches full roll, control the rotating arm (201) to rotate to switch the winding station, and control the cutting module (7) to cut the composite material strip, thereby realizing automatic roll changing without stopping the machine; The film supply unit includes a film reel (3) and a film guide roller (8); the guiding unit includes a composite roller (9), a guide roller (10), a tension adjusting roller (11), and a waste strip guide roller (12); the film strip (13) is drawn out from the film reel (3), passes through the tension adjusting roller (11), the guide roller (10), and the film guide roller (8) in sequence, and then reaches the composite roller (9); the waste strip (14) is introduced into the composite roller (9) through the waste strip guide roller (12), and achieves non-adhesive composite with the film strip (13) under the action of roller pressure; The cutting module (7) includes a swingable support bracket (701), a first telescopic rod (702) for driving the support bracket (701) to swing, a second telescopic rod (703) disposed at the end of the support bracket (701), a knife holder (704) connected to the second telescopic rod (703), a cutting knife (705) slidably disposed on the knife holder (704), a third cylinder (706) for driving the cutting knife (705), and a pressure roller (707) for pressing the composite strip against the current take-up roller surface before cutting.

2. The automatic waste discharge and rewinding system according to claim 1, characterized in that, During winding, the film strip covers the waste strip and is fixed by vacuum adsorption rollers, so that the film strip presses the waste strip tightly against the surface of the winding rollers.

3. The automatic waste discharge and rewinding system according to claim 1, characterized in that, It also includes a broken band repair unit, which comprises: An auxiliary pressing module (4) is set above the composite strip and is used to press the film strip (13) during the repair process. A tape module (5) is located below the composite tape and is used to provide splicing tape; The bonding module (6) is located below the composite strip and is used to transfer and adhere the tape. The control system is also configured to control the broken belt repair unit to perform an automatic reconnection operation when a break in the waste belt (14) is detected.

4. The automatic waste discharge and rewinding system according to claim 3, characterized in that, It also includes a belt breakage detection and positioning mechanism, which includes a displacement module (16) disposed on a first base (1), a support rod (17) driven by the displacement module (16), and a belt breakage detection module (18) disposed on the support rod (17). The control system is signal connected to the belt breakage detection module (18) and the displacement module (16), and is configured to control the displacement module (16) to drive the support rod (17) to move after receiving a belt breakage signal, so as to lift and reset the broken end of the waste belt (14).

5. The automatic waste discharge and rewinding system according to claim 3, characterized in that, The tape module (5) includes a second base (501), a tape feeding mechanism (503), a cutting mechanism (504), and a clamping mechanism (502) for clamping the tape end; the bonding module (6) includes a vacuum suction seat (603) and a sliding module for driving its movement; the control system is configured to control the clamping mechanism (502) to pull the tape out from the tape feeding mechanism (503), control the cutting mechanism (504) to cut the tape, and control the bonding module (6) to transfer and bond the tape segment to the broken tape.

6. The automatic waste discharge and rewinding system according to claim 5, characterized in that, The clamping mechanism (502) includes a clamping cylinder (5021), a clamping head (5022), a motor (5023), and a gear (5024); a rack (505) is provided on the second base (501), and the gear (5024) on the output shaft of the motor (5023) meshes with the rack (505) to drive the clamping mechanism (502) to move horizontally along the conveying direction of the composite material belt.

7. The automatic waste discharge and rewinding system according to claim 1, characterized in that, The tension adjusting roller (11) is vertically slidably mounted on the side wall of the first base (1) via a slider mechanism and is signal-connected to the control system. The control system is configured to dynamically adjust the position of the tension adjusting roller (11) according to the tension feedback signal to maintain the tension of the film strip (13) constant.

8. A die-cutting machine, using the automatic waste removal and rewinding system as described in any one of claims 1 to 7, characterized in that, The die-cutting machine body (15) is provided with a first sliding adjustment seat (1501) and a second sliding adjustment seat (1502) for installing the automatic waste discharge and rewinding system at the waste discharge end of the die-cutting machine body (15); the automatic waste discharge and rewinding system can be aligned and connected with the waste discharge outlet of the die-cutting machine body (15) to realize the continuous reception and processing of waste strip (14).

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