Automatic waste edge collecting and compacting device for heat-shrinking machine

Abstract

This utility model relates to the field of heat shrink machine cross-cut waste edge processing technology, and particularly to an automatic collection and compaction device for heat shrink machine cross-cut waste edges. The technical solution includes: a working bucket with a collection groove on its upper surface; a fixed plate fixed to one side of the outer wall of the working bucket; a rotating rod rotatably connected to the upper surface of the fixed plate; a turntable fixed to the top of the rotating rod; a rotating plate fixed to one side of the turntable; a long plate fixed to the upper surface of the rotating plate; a movable plate movably connected to one side of the long plate; a rotating tube rotatably connected inside the movable plate; a brush installed on the outer wall of the rotating tube; a nozzle installed on the outer wall of the rotating tube; a second rotating plate fixed to the other side of the turntable; a second cylinder fixed to the upper surface of the second rotating plate; a second air rod installed at the bottom of the second cylinder; and a second pressure plate fixed to the bottom of the second air rod. This utility model has the advantages of facilitating the compaction of heat shrink machine cross-cut waste edges and simultaneously facilitating the cleaning of ink adhering to the inner wall of the collection groove.

Description

Technical Field

[0001] This utility model relates to the field of heat shrink machine cross-cut waste edge processing technology, specifically an automatic collection and compaction device for heat shrink machine cross-cut waste edges. Background Technology

[0002] Cross-cut waste edges in heat shrink packaging refer to the excess film material trimmed from the packaging film after the sealing and cutting process during heat shrink packaging. In automated packaging processes, after the heat shrink film covers the product and completes the longitudinal sealing, the cross-cutting blade cuts perpendicular to the conveying direction, severing the connecting film between the front and back products. The residual film strips on both sides produced at this time are the cross-cut waste edges.

[0003] On heat shrink packaging production lines, the disposal of waste edges generated during the cross-cutting process has always been a challenge for operators. These hot film waste edges are collected by an automatic winding device and then compacted for subsequent recycling or disposal. The situation becomes particularly complex when the waste edges are printed with product information, barcodes, or brand logos. During the hot-pressing process, the ink layer undergoes physicochemical changes, and some ink particles peel off from the film substrate, gradually adhering to the metal surface of the compression chamber under mechanical pressure. This contamination is not simply surface adhesion; the resin components in the ink become sticky under high temperature and pressure, forming a stubborn bond with the metal surface.

[0004] As production batches increase, the contamination layer gradually thickens, leading to a series of chain reactions. Ink begins to stick to the surface of the compressed waste blocks, leaving stains on the transfer baskets or conveyor belts upon removal. More problematic is that some specially formulated inks undergo oxidative polymerization at high temperatures, forming a hardened, enamel-like layer. This change renders conventional mechanical scraping methods ineffective. Operators are forced to stop the machine for deep cleaning, using solvent soaking combined with wire brushes, which is not only time-consuming but also poses safety hazards due to solvent evaporation. In industries with stringent cleanliness requirements, such as food and pharmaceuticals, this ink transfer problem can also lead to compliance risks of cross-contamination. Utility Model Content

[0005] The purpose of this invention is to provide an automatic collection and compaction device for waste edges cut by heat shrink machines. This device facilitates the compaction of waste edges cut by heat shrink machines and the cleaning of ink adhering to the inner wall of the collection tank. It solves the problem that when processing waste edges cut by heat shrink machines, it is necessary to collect and compact the waste edges, but some waste edges contain ink. When processing waste edges containing printing ink, the ink transfers and contaminates the compression cavity, making cleaning inconvenient, time-consuming, labor-intensive, and inefficient.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic collection and compaction device for waste edges from heat shrink machine cross-cutting, comprising a working barrel, a collection groove on the upper surface of the working barrel, a fixed plate fixed to one side of the outer wall of the working barrel, a rotating rod rotatably connected to the upper surface of the fixed plate, a turntable fixed to the top of the rotating rod, a rotating plate fixed to one side of the turntable, a long plate fixed to the upper surface of the rotating plate, a movable plate movably connected to one side of the long plate, a rotating tube rotatably connected inside the movable plate, a brush installed on the outer wall of the rotating tube, a nozzle installed on the outer wall of the rotating tube, a rotating plate two fixed to the other side of the turntable, a cylinder two fixed to the upper surface of the rotating plate two, a pneumatic rod two installed at the bottom of the cylinder two, and a pressure plate two fixed to the bottom of the pneumatic rod two.

[0007] Preferably, the lower surface of the working barrel is fixed with three pillars arranged in a circular array. The three pillars support the working barrel, making the entire device stable.

[0008] Preferably, a circular hole is provided on the lower surface of the working barrel, and a cylinder is fixed to the lower surface of the working barrel. A pneumatic rod is installed at the top of the cylinder, and the top of the pneumatic rod extends through the circular hole into the collection trough. A pressure plate is fixed to the top of the pneumatic rod. The cylinder provides power for the extension and retraction of the pneumatic rod, allowing the pressure plate to move up and down as needed, facilitating the compaction of waste materials.

[0009] Preferably, a second circular hole is provided on the lower surface of the fixed plate, and a second motor is fixed to the lower surface of the fixed plate. The top end of the drive shaft of the second motor extends into the second circular hole, and a first rotating rod is fixed to the top end of the drive shaft of the second motor. The drive shaft of the second motor, which fixes the first rotating rod, provides power for the rotation of the first rotating plate, the turntable, and the second rotating plate, so that waste materials can be compacted or the collection tank can be cleaned as needed.

[0010] Preferably, the upper surface of the rotating plate two has a circular hole three, and a cylinder two is fixed on the upper surface of the rotating plate two. The air rod two installed at the bottom of the cylinder two passes through the circular hole three. The cylinder two provides power for the extension and retraction of the air rod two, so that the pressure plate two can move up and down as needed. The pressure plate one and the pressure plate two can cooperate to compact the waste material.

[0011] Preferably, a long groove is formed on one side of the long plate, and a movable block is inserted into the long groove. A threaded hole is formed on the upper surface of the movable block, and a circular hole four is formed on the upper surface of the long plate. A motor three is fixed on the upper surface of the long plate, and the bottom end of the drive shaft of the motor three extends into the circular hole four. A screw is fixed to the bottom end of the drive shaft of the motor three, and the bottom end of the screw passes through the threaded hole and is threadedly connected. The screw is fixed by the drive shaft of the motor three, which provides power for the rotation of the screw, so that the movable block, the movable plate, and the brush can move downward as needed, and the brush can enter the collection tank for cleaning.

[0012] Preferably, the upper surface of the movable plate has a mounting hole, the top end of the rotating tube passes through the mounting hole and is rotatably connected, the upper surface of the rotating tube has a tube groove, and a gear two is fixed on the rotating tube. The lower surface of the movable plate has a circular hole five, and a motor one is fixed on the lower surface of the movable plate. The top end of the drive shaft of the motor one extends into the mounting hole, and a rotating rod two is fixed to the top end of the drive shaft of the motor one. A gear one is fixed to the top end of the rotating rod two, and the gear one and gear two are meshed together. The rotating rod two is fixed by the drive shaft of the motor one, providing power for the rotation of the rotating rod two and gear one, so that the brush and nozzle can rotate as needed, facilitating cleaning of the collection tank.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This utility model features a collection trough on the upper surface of the working barrel. A fixed plate is fixed to one side of the outer wall of the working barrel. A rotating rod is rotatably connected to the upper surface of the fixed plate. A turntable is fixed to the top of the rotating rod. A rotating plate is fixed to one side of the turntable. A long plate is fixed to the upper surface of the rotating plate. A movable plate is movably connected to one side of the long plate. A rotating tube is rotatably connected inside the movable plate. A brush and a nozzle are installed on the outer wall of the rotating tube. When it is necessary to clean the collection trough, a second motor is started, causing the rotating rod to rotate and the brush to rotate above the collection trough. Then, a third motor is started, causing the screw to rotate and the brush to extend into the collection trough. Finally, a first motor is started, causing the rotating tube, brush, and nozzle to rotate, while water is introduced into the rotating tube. The brush can clean the inner wall of the collection trough, and the nozzle sprays water into the collection trough. This achieves the effect of facilitating the compaction of waste edges cut by the heat shrink machine and facilitating the cleaning of ink adhering to the inner wall of the collection trough. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the working barrel of this utility model;

[0017] Figure 3 This is a cross-sectional view of the fixing plate of this utility model;

[0018] Figure 4 This is a schematic diagram of the two-section structure of the rotating plate of this utility model;

[0019] Figure 5 This is a schematic cross-sectional view of the long plate structure of this utility model;

[0020] Figure 6 This is a schematic cross-sectional view of the rotating tube structure of this utility model.

[0021] In the diagram: 1. Support column; 2. Working bucket; 3. Collection trough; 4. Brush; 5. Rotating pipe; 6. Motor 1; 7. Moving plate; 8. Long plate; 9. Rotating plate 1; 10. Turntable; 11. Rotating rod 1; 12. Rotating plate 2; 13. Fixed plate; 14. Pressure plate 1; 15. Air rod 1; 16. Round hole 1; 17. Air cylinder 1; 18. Motor 2; 19. Round hole 2; 20. Air cylinder 2; 21. Round hole 3; 22. Pressure plate 2; 23. Air rod 2; 24. Screw; 25. Moving block; 26. Motor 3; 27. Round hole 4; 28. Long groove; 29. ​​Threaded hole; 30. Nozzle; 31. Pipe groove; 32. Round hole 5; 33. Gear 1; 34. Rotating rod 2; 35. Gear 2; 36. Mounting hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1 to 6 The present invention provides two embodiments:

[0024] Example 1: An automatic collection and compaction device for waste edges from heat shrink machine cross-cutting includes a working barrel 2, a collection groove 3 on the upper surface of the working barrel 2, a fixed plate 13 fixed to one side of the outer wall of the working barrel 2, a rotating rod 11 rotatably connected to the upper surface of the fixed plate 13, a turntable 10 fixed to the top of the rotating rod 11, a rotating plate 9 fixed to one side of the turntable 10, a long plate 8 fixed to the upper surface of the rotating plate 9, a movable plate 7 movably connected to one side of the long plate 8, a rotating tube 5 rotatably connected inside the movable plate 7, a brush 4 installed on the outer wall of the rotating tube 5, a nozzle 30 installed on the outer wall of the rotating tube 5, a rotating plate 12 fixed to the other side of the turntable 10, a cylinder 20 fixed to the upper surface of the rotating plate 12, a pneumatic rod 23 installed at the bottom of the cylinder 20, and a pressure plate 22 fixed to the bottom of the pneumatic rod 23.

[0025] Three support pillars 1 arranged in a circular array are fixed on the lower surface of the working barrel 2;

[0026] A round hole 16 is provided on the lower surface of the working barrel 2. A cylinder 17 is fixed on the lower surface of the working barrel 2. A rod 15 is installed on the top of the cylinder 17. The top of the rod 15 extends through the round hole 16 into the collection tank 3. A pressure plate 14 is fixed on the top of the rod 15.

[0027] Cylinder 17 provides power for the extension and retraction of air rod 15, and cylinder 20 provides power for the extension and retraction of air rod 23, so that pressure plate 14 and pressure plate 22 can be moved as needed, which facilitates the compaction of the waste edge cut by the heat shrink machine.

[0028] The coordinated operation of the pneumatic cylinder and pneumatic rod essentially converts the energy of compressed air into precise mechanical linear motion. When compressed air enters one end of the pneumatic cylinder through a solenoid valve, the air pressure pushes the piston to move, and the piston rod extends or retracts accordingly. At this time, the air at the other end is discharged through the exhaust port.

[0029] A second round hole 19 is provided on the lower surface of the fixing plate 13. A second motor 18 is fixed on the lower surface of the fixing plate 13. The top end of the transmission shaft of the second motor 18 extends into the second round hole 19. A rotating rod 11 is fixed on the top end of the transmission shaft of the second motor 18.

[0030] The drive shaft of motor 218 is fixed to the rotating rod 11, which provides power for the rotation of the rotating rod 11, so that the brush 4 and the pressure plate 22 can be rotated to the top of the collection tank 3 as needed, which is convenient for compacting the waste edge cut by the heat shrink machine, and also convenient for cleaning the inside of the collection tank 3.

[0031] A circular hole 21 is provided on the upper surface of the rotating plate 212. A cylinder 20 is fixed on the upper surface of the rotating plate 212. A rod 23 installed at the bottom of the cylinder 20 passes through the circular hole 21.

[0032] In this embodiment, when it is necessary to process the waste edges cut by the heat shrink machine, a negative pressure device is used to guide the waste edges into the collection tank 3. Then, motor 18 is started, causing rotating rod 11 to rotate and pressure plate 22 to rotate above the collection tank 3. Then, cylinders 17 and 20 are started, causing air rods 15 and 23 to extend and retract, and pressure plates 14 and 22 to extend and retract, thus compacting the waste edges cut by the heat shrink machine in the collection tank 3. This achieves the effect of facilitating the processing and compaction of waste edges cut by the heat shrink machine.

[0033] Example 2:

[0034] A long slot 28 is provided on one side of the long plate 8. A movable block 25 is inserted into the long slot 28. A threaded hole 29 is provided on the upper surface of the movable block 25. A round hole 27 is provided on the upper surface of the long plate 8. A motor 26 is fixed on the upper surface of the long plate 8. The bottom end of the drive shaft of the motor 26 extends into the round hole 27. A screw 24 is fixed on the bottom end of the drive shaft of the motor 26. The bottom end of the screw 24 passes through the threaded hole 29 and is threadedly connected.

[0035] Motor 26 provides power for the rotation of screw 24, allowing moving block 25, moving plate 7 and brush 4 to move up and down as needed, facilitating the cleaning of the inner wall of collection tank 3.

[0036] Motors 2 (18) and 3 (26) are servo motors. The core of a servo motor lies in achieving precise motion control through closed-loop feedback. Structurally, it mainly consists of a permanent magnet rotor, stator windings, a high-resolution encoder, and a drive controller. The permanent magnet rotor uses high-performance neodymium iron boron material, while the stator adopts a three-phase star winding layout. This design ensures high torque output while achieving a compact physical structure. The encoder, acting as the "eye" of the system, typically uses optical or magnetic principles to detect the rotor position in real time and provide feedback to the controller.

[0037] During operation, the controller receives position commands from the host system, compares them with the actual position feedback from the encoder, and calculates a correction value using a PID algorithm. This correction value is converted into a three-phase PWM modulation signal, driving the power module to generate a rotating magnetic field. The rotating magnetic field generated in the stator windings interacts with the magnetic field of the permanent magnet rotor, producing precise electromagnetic torque.

[0038] The upper surface of the movable plate 7 is provided with a mounting hole 36. The top end of the rotating tube 5 passes through the mounting hole 36 and is rotatably connected. The upper surface of the rotating tube 5 is provided with a tube groove 31. A gear 2 35 is fixed on the rotating tube 5. The lower surface of the movable plate 7 is provided with a round hole 5 32. A motor 1 6 is fixed on the lower surface of the movable plate 7. The top end of the transmission shaft of the motor 1 6 extends into the mounting hole 36. A rotating rod 2 34 is fixed on the top end of the transmission shaft of the motor 1 6. A gear 1 33 is fixed on the top end of the rotating rod 2 34. The gear 1 33 and the gear 2 35 are meshed and connected.

[0039] The tube 31 facilitates the introduction of cleaning liquid, allowing the cleaning liquid to be sprayed out through the nozzle 30. At the same time, the rotation of the drive shaft fixed to the rotating rod 34 and the gear 33 of the motor 6 provides power. Meanwhile, the gear 35, the rotating tube 5, the brush 4 and the nozzle 30 can rotate as needed, making it easier for the brush 4 to clean the ink adhering to the inner wall of the collection tank 3.

[0040] Motor 16 is a three-phase asynchronous motor, a rotating device that uses the principle of electromagnetic induction to convert electromechanical energy. Its core structure consists of two main parts: the stator and the rotor. The stator core is made of laminated silicon steel sheets, with three-phase symmetrical windings evenly distributed around its inner circumference. These windings are arranged in 120° electrical angles, generating a rotating magnetic field when three-phase alternating current is applied. The rotor uses a squirrel-cage structure, with copper or aluminum bars embedded in the core slots, and the two ends short-circuited by end rings to form a closed loop.

[0041] When an alternating current with a 120° phase difference is applied to the three-phase stator windings, a magnetic field rotating at synchronous speed is generated. This rotating magnetic field cuts the rotor conductors, inducing an electromotive force and generating a current in the squirrel cage bars. According to Lenz's law, the magnetic field generated by the induced current always opposes the change in the original magnetic field, which causes the rotor to be subjected to electromagnetic torque and begin to rotate in the direction of the rotating magnetic field.

[0042] In this embodiment, when the processed and compacted waste contains ink, the ink easily adheres to the collection tank 3. When it is necessary to clean the inner wall of the collection tank 3, motor 218 is started, causing the rotating rod 11 to rotate and the brush 4 to rotate above the collection tank 3. Then, motor 326 is started, causing the screw 24 to rotate. The moving block 25, the moving plate 7, and the brush 4 can move up and down as needed. At the same time, motor 6 is started, causing gear 133 and gear 25 to rotate. The rotating tube 5, the brush 4, and the nozzle 30 can rotate as needed. Finally, cleaning fluid is introduced into the tube 31, allowing the nozzle 30 to spray out the cleaning fluid, and the brush 4 to clean the inner wall of the collection tank 3. This achieves the effect of facilitating the cleaning of ink adhering to the inner wall of the collection tank 3.

[0043] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An automatic collection and compaction device for waste edges from heat shrink machine cross-sections, comprising a working drum (2), characterized in that: The upper surface of the working barrel (2) is provided with a collection groove (3). A fixing plate (13) is fixed on one side of the outer wall of the working barrel (2). A rotating rod (11) is rotatably connected to the upper surface of the fixing plate (13). A turntable (10) is fixed at the top of the rotating rod (11). A rotating plate (9) is fixed on one side of the turntable (10). A long plate (8) is fixed on the upper surface of the rotating plate (9). A movable plate (7) is movably connected to one side of the long plate (8). A rotating tube (5) is rotatably connected inside the movable plate (7). A brush (4) is installed on the outer wall of the rotating tube (5). A nozzle (30) is installed on the outer wall of the rotating tube (5). A rotating plate (12) is fixed on the other side of the turntable (10). A cylinder (20) is fixed on the upper surface of the rotating plate (12). A rod (23) is installed at the bottom of the cylinder (20). A pressure plate (22) is fixed at the bottom of the rod (23).

2. The automatic collection and compaction device for waste edges from heat shrink machine cross-cutting according to claim 1, characterized in that: The lower surface of the working barrel (2) is fixed with three pillars (1) arranged in a ring.

3. The automatic collection and compaction device for waste edges from heat shrink machine cross-sections according to claim 1, characterized in that: The lower surface of the working barrel (2) is provided with a circular hole (16), and a cylinder (17) is fixed on the lower surface of the working barrel (2). A rod (15) is installed on the top of the cylinder (17), and the top of the rod (15) extends through the circular hole (16) into the collection groove (3). A pressure plate (14) is fixed on the top of the rod (15).

4. The automatic collection and compaction device for waste edges from heat shrink machine cross-sections according to claim 1, characterized in that: The lower surface of the fixing plate (13) is provided with a second round hole (19), and a second motor (18) is fixed on the lower surface of the fixing plate (13). The top end of the transmission shaft of the second motor (18) extends into the second round hole (19), and a rotating rod (11) is fixed on the top end of the transmission shaft of the second motor (18).

5. The automatic collection and compaction device for waste edges from heat shrink machine cross-sections according to claim 1, characterized in that: The upper surface of the rotating plate 2 (12) is provided with a circular hole 3 (21), and a cylinder 2 (20) is fixed on the upper surface of the rotating plate 2 (12). The cylinder rod 2 (23) installed at the bottom of the cylinder 2 (20) passes through the circular hole 3 (21).

6. The automatic collection and compaction device for waste edges from heat shrink machine cross-sections according to claim 1, characterized in that: A long groove (28) is provided on one side of the long plate (8), and a movable block (25) is inserted into the long groove (28). A threaded hole (29) is provided on the upper surface of the movable block (25). A round hole (27) is provided on the upper surface of the long plate (8). A motor (26) is fixed on the upper surface of the long plate (8). The bottom end of the drive shaft of the motor (26) extends into the round hole (27). A screw (24) is fixed on the bottom end of the drive shaft of the motor (26). The bottom end of the screw (24) passes through the threaded hole (29) and is threadedly connected.

7. The automatic collection and compaction device for waste edges from heat shrink machine cross-sections according to claim 1, characterized in that: The upper surface of the movable plate (7) is provided with an installation hole (36), the top end of the rotating tube (5) passes through the installation hole (36) and is rotatably connected, the upper surface of the rotating tube (5) is provided with a tube groove (31), the rotating tube (5) is fixed with a gear two (35), the lower surface of the movable plate (7) is provided with a circular hole five (32), the lower surface of the movable plate (7) is fixed with a motor one (6), the top end of the transmission shaft of the motor one (6) extends into the installation hole (36), the top end of the transmission shaft of the motor one (6) is fixed with a rotating rod two (34), the top end of the rotating rod two (34) is fixed with a gear one (33), and the gear one (33) and the gear two (35) are meshed and connected.

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