Winding device for heat shrinkage film production

Abstract

The invention discloses a winding device for thermal shrinkage film production, and relates to the technical field of winding tools for thermal shrinkage film production, cross frames are fixedly connected to the inner ends of butt joint seats, winding rollers are rotatably arranged among the four ends of the two cross frames, and connecting assemblies are mounted in the four ends of the cross frames; inverted L-shaped moving seats are slidably arranged in the transmission cavity, a transmission mechanism is arranged in the transmission cavity, and a film guide roller is rotatably arranged between the outer ends of the two L-shaped moving seats; a switching type driving mechanism is mounted in the lower part of the electric cabinet; through cooperation of the connecting assembly, the switching type driving mechanism and the winding rollers, rotary switching winding among the four winding rollers can be conveniently achieved, the purpose of single driving winding operation is achieved, through cooperation of the transmission mechanism, the connecting assembly and the disconnecting assembly, through the driving assembly or the switching type driving mechanism, the winding operation can be completed, and the winding efficiency is improved. The effect of driving the winding rollers to rotate to wind the thermal shrinkage film can be achieved, and the number of motors needed when the multiple winding rollers are driven can be effectively reduced.

Description

Technical Field

[0001] The invention relates to the technical field of heat shrink film production and winding tools, and in particular to a winding device for heat shrink film production. Background Art

[0002] The heat shrink film winding device is mainly used to roll up the heat shrink film for subsequent packaging, transportation and storage. It uses a series of mechanical structures and control systems to achieve accurate and efficient rolling of the heat shrink film. The heat shrink film winding device is widely used in the packaging industry, especially in the packaging of food, medicine, cosmetics, daily necessities and other fields. It can not only improve the packaging efficiency, but also ensure the beauty and firmness of the packaging. At the same time, with the continuous advancement of technology, the heat shrink film winding device is also constantly updated to meet the changing needs of the market. In the future, the heat shrink film winding device will develop in a more intelligent and automated direction, and through the introduction of advanced control systems and sensor technologies, the precise control and automated management of the winding process can be achieved. However, the main disadvantages of the existing heat shrink film winding device are its multi-motor drive system, inefficient winding method and lack of flexible adjustment mechanism; Multi-motor drive system: Traditional heat shrink film winding devices often need to be equipped with an independent drive motor for each winding roller, which not only increases the equipment cost, but also makes the entire drive system complicated and difficult to maintain. The synchronous control of multiple motors has also become a technical problem, which can easily lead to incoordination and error accumulation during the winding process; Inefficient winding method: In traditional winding devices, due to the lack of effective rotation switching and single-roll drive mechanism, the winding process is often not flexible and efficient. After each winding roller is wound, it needs to stop for roll change, which not only wastes time but also affects the continuity and efficiency of the production line. In addition, the traditional winding method is difficult to achieve precise control of the winding tension, thus affecting the winding quality; Lack of flexible adjustment mechanism: Traditional heat shrink film winding devices often require cumbersome manual operations when adjusting the distance between the film guide roller and the winding roller, which not only increases the labor intensity of the operator, but also makes it difficult to ensure the accuracy and timeliness of the adjustment; in addition, due to the lack of an effective clamping mechanism, the wound heat shrink film roll is prone to loosening, especially when switching the winding roller, which can easily lead to quality problems of the wound film roll. Therefore, the above problems need to be improved. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a winding device for heat shrink film production.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a winding device for heat shrink film production, comprising a winding frame and bearing seats arranged on both sides of the top of the winding frame, a rotating shaft is installed in the inner ring of the bearing seat, the inner ends of the two rotating shafts are fixedly connected to connecting disks, the inner sides of the connecting disks are fixedly connected to docking seats by bolts, the inner ends of the docking seats are fixedly connected to a cross frame, a winding roller is rotatably arranged between the four ends of the two cross frames, and connecting components for winding roller installation are installed in the four ends of the cross frames; a transmission cavity connected to the middle part is opened in the four frame bodies of the cross frame, and the transmission cavity is connected to the middle part of the cross frame. An inverted L-shaped moving seat is slidably provided in the moving cavity, a rectangular strip opening connected to the transmission cavity is opened on the same side frame of the cross frame, and the outer end of the L-shaped moving seat extends out of the rectangular strip opening, and a transmission mechanism for moving the L-shaped moving seat is provided inside the transmission cavity, and a film guide roller is rotatably provided between the outer ends of the L-shaped moving seats on the two cross frames; an electric control box is provided on one side of the winding frame, and multiple control panels are installed on the top of the electric control box, a reduction motor for driving one of the rotating shafts is installed in the upper part of the electric control box, and a switching drive mechanism for rotating four winding rollers is installed in the lower part of the electric control box.

[0005] Preferably, a supporting arc plate is protruded from the bottom edge of the connecting disk, a first spline groove is formed on the outer end surface of the rotating shaft, and a spline rod inserted in the first spline groove is fixedly connected to the output shaft of the reduction motor.

[0006] Preferably, the connecting assembly rotates through a rotating tube in the end of the cross frame and a connecting shaft inserted into the rotating tube, the outer end of the connecting shaft is fixedly connected to the first spline sleeve, a lap groove is provided on one side of the inner end of the connecting shaft, both ends of the winding roller are fixedly connected to a clamping block, a countersunk hole is provided in the middle of the outer end surface of the clamping block, a connecting bolt is provided in the countersunk hole, and a threaded groove is provided on the inner bottom surface of the lap groove to cooperate with the connecting bolt.

[0007] The transmission gear of the present invention is a gear which is connected with the drive shaft of the servo motor, and a transmission belt is sleeved between the driving belt and the driven belt. The transmission gear of the present invention is a gear which is connected with the drive shaft of the servo motor, and a transmission belt is sleeved between the driving belt and the driven belt. The transmission gear of the present invention is a gear which is connected with the drive shaft of the servo motor, and a transmission belt is sleeved between the driving belt and the driven belt. The transmission belt is sleeved between the driving belt and the driven belt. The transmission belt is sleeved between the driving belt and the driven belt. The transmission belt is sleeved between the driving belt and the driven belt. The transmission belt is sleeved between the driving belt and the driven belt. The transmission belt is sleeved between the driving belt and the driven belt.

[0008] Preferably, the transmission mechanism includes a driving assembly arranged in the middle of the cross frame, a transmission box fixedly arranged inside the outer end of the transmission cavity, a screw rotatably arranged on the inner side surface of the transmission box, a driven shaft rotatably arranged on the outer side surface of the transmission box and a second bevel gear fixedly connected to the driven shaft, a driven bevel gear ring meshing with the second bevel gear is fixedly sleeved on the rotating tube, a disconnecting assembly is provided inside the transmission box, and a reverse thrust assembly for the L-shaped moving seat to return to the screw thread segment is also installed at the connection between the transmission cavity and the middle of the cross frame.

[0009] Preferably, the drive assembly includes a non-locking motor arranged inside the docking seat, a transmission shaft coaxially installed on the driving shaft of the non-locking motor and an active bevel gear ring fixedly sleeved on the transmission shaft, the inner ends of multiple screws are fixedly connected with a first bevel gear meshing with the active bevel gear ring, the L-shaped movable seat is located in the transmission cavity and a threaded hole is provided on the seat body of the screw, and the surface of the rod body of one-third of the length of the inner end of the screw is smooth.

[0010] Preferably, the reverse thrust assembly includes a fixed ring plate fixed around the middle cavity of the cross frame, an electromagnet ring installed on the outer surface of the fixed ring plate, and a rubidium magnetic ring installed at the inner bottom end of the L-shaped movable seat. When power is applied, the electromagnet ring has the same magnetic pole as the opposite surface of the rubidium magnetic ring.

[0011] Preferably, the disconnecting assembly includes a movable ring plate vertically arranged inside the transmission box, an electric telescopic rod installed on both sides of the outer side of the movable ring plate, and a second spline shaft rotatably arranged in the inner ring of the movable ring plate, the fixed end of the electric telescopic rod is fixed on the inner wall of the transmission box, the outer end of the screw rod movably penetrates into the interior of the transmission box, and is provided with a second spline groove that cooperates with the inner end of the second spline shaft, the inner end of the driven shaft movably penetrates into the interior of the transmission box, and is provided with a third spline groove that cooperates with the inner end of the second spline shaft, and the outer end of the second spline shaft is movably inserted into the third spline groove.

[0012] Preferably, the front and rear ends of the installation surface of the electric control box are fixedly connected with hanging seats, a pair of fixing bolts are passed between the two hanging seats, the bottom surface of the hanging seat is inclined, and is supported on the inclined surfaces of the front and rear ends of the frame body on one side of the winding frame; a pair of positioning holes are longitudinally opened on the frame bodies on both sides of the winding frame to cooperate with the fixing bolts.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention facilitates the realization of rotational switching and winding between four winding rollers and the purpose of single-drive winding operation through the cooperation of the connecting component with the switching drive mechanism and the winding roller. At the same time, through the cooperation of the transmission mechanism with the connecting component and the disconnecting component, the transmission operation of the winding roller can be realized in two directions. The driving component or the switching drive mechanism can drive the winding roller to rotate and wind up the heat shrink film, which can effectively reduce the number of motors used to drive multiple winding rollers, thereby reducing costs and increasing efficiency. 2. The present invention facilitates lateral adjustment of the L-shaped movable seat by cooperating with the reverse thrust component, the disconnect component and the drive component. At the same time, by adjusting the distance between the film guide roller and the winding roller, the position of the film guide roller can play a film guiding and supporting role in the process of winding the heat shrink film. At the same time, the film guide roller can also be moved and pressed on the wound heat shrink film roll, so that the heat shrink film roll wound into different thicknesses can be pressed to avoid relaxation of the heat shrink film roll, and when the next winding roller is switched subsequently, the heat shrink film roll wound on this winding roller can be prevented from loosening, thereby improving the efficiency of winding the heat shrink film and the continuity of switching the winding roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 It is a schematic diagram of the overall first-view structure of the present invention; Figure 2 It is a schematic diagram of the overall second viewing angle structure of the present invention; Figure 3 A side structural cross-sectional view of the present invention; Figure 4 This is a schematic diagram of the structure of the electric control box of the present invention in an open state; Figure 5 It is a schematic diagram of the structure of the cross frame, the reduction motor and the rotating shaft of the present invention; Figure 6 It is a schematic diagram of the position of the switchable drive mechanism and the cross frame structure of the present invention; Figure 7 It is a schematic structural diagram of the cross frame and the winding roller of the present invention from a first viewing angle; Figure 8 It is a schematic structural diagram of the cross frame and the winding roller of the present invention from a second viewing angle; Fig. 9 It is a schematic diagram of the structure of the winding roller, the clamping block and the connecting assembly of the present invention; Fig.10 It is a schematic diagram of the structure of the switchable drive mechanism of the present invention; Fig.11 It is a schematic diagram of the three-dimensional structure of the first spline shaft of the present invention; Fig.12 It is a three-dimensional structural schematic diagram of the transmission mechanism of the present invention; Fig.13 It is a schematic diagram of the structure of the connecting disk, rotating shaft and bearing seat of the present invention.

[0015] Serial numbers in the figure: 1. winding frame; 2. bearing seat; 3. rotating shaft; 4. connecting plate; 5. docking seat; 6. cross frame; 7. winding roller; 8. electric control box; 9. reduction motor; 10. rotating tube; 11. connecting shaft; 12. first spline sleeve; 13. supporting seat; 14. servo motor; 15. second spline sleeve; 16. transmission belt; 17. moving ring; 18. electric push rod; 19. first spline shaft; 20. clamping block; 21. screw; 22. L-shaped moving seat; 23. film guide roller; 24. transmission box; 25. transmission shaft; 26. active bevel gear ring; 27. first bevel gear; 28. movable ring plate; 29. ​​second spline shaft; 30. electric telescopic rod; 31. driven shaft; 32. second bevel gear; 33. driven bevel gear ring; 34. electromagnet ring; 35. rubidium magnetic ring. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0017] Example 1: See Figures 1 to 13, a winding device for heat shrink film production, comprising a winding frame 1 and a bearing seat 2 arranged on both sides of the top of the winding frame 1, a rotating shaft 3 is installed in the inner ring of the bearing seat 2, the inner ends of the two rotating shafts 3 are fixedly connected with connecting plates 4, the inner side of the connecting plate 4 is fixedly provided with a docking seat 5 by bolts, the inner end of the docking seat 5 is fixedly connected with a cross frame 6, a winding roller 7 is rotatably provided between the four ends of the two cross frames 6, and a connecting assembly for installing the winding roller 7 is installed in the four ends of the cross frame 6; a transmission cavity connected to the middle part is opened in the four frame bodies of the cross frame 6, an inverted L-shaped moving seat 22 is slidably provided in the transmission cavity, a rectangular strip opening connected to the transmission cavity is opened on the same side frame body of the cross frame 6, and the outer end of the L-shaped moving seat 22 extends out from the rectangular strip opening, and a transmission mechanism for moving the L-shaped moving seat 22 is provided inside the transmission cavity, and a film guide roller 23 is rotatably provided between the outer ends of the L-shaped moving seats 22 on the two cross frames 6; through the independently Or synchronously adjust the moving film guide roller 23 to prevent the quality problem of the wound film roll from loosening when switching the winding roller 7; an electric control box 8 is provided on one side of the winding frame 1, and multiple control panels are installed on the top of the electric control box 8. A reduction motor 9 for driving one of the rotating shafts 3 is installed in the upper part of the electric control box 8, and a switching drive mechanism for rotating four winding rollers 7 is installed in the lower part of the electric control box 8; through the cooperation of the connecting component with the switching drive mechanism and the winding roller 7, it is convenient to realize the rotation switching winding between the four winding rollers 7 and realize the purpose of single-drive winding operation. At the same time, through the cooperation of the transmission mechanism with the connecting component and the disconnecting component, the transmission operation of the winding roller 7 can be realized in both directions, and then the purpose of driving the winding roller 7 through the driving component or the switching drive mechanism can be realized, which can effectively reduce the number of motors to be used when driving multiple winding rollers 7.

[0018] In the present invention, a supporting arc plate is raised on the bottom edge of the connecting disk 4, which can play a role of preliminary support when connecting the docking seat 5, facilitate the alignment operation between the hole positions, and facilitate the insertion of bolts for connection and fixing; a first spline groove is provided on the outer end face of the rotating shaft 3, and a spline rod inserted in the first spline groove is fixedly connected to the output shaft of the reduction motor 9; the front and rear ends of the installation face of the electric control box 8 are fixedly connected to the mounting surface, and a pair of fixing bolts are inserted between the two mounting surfaces, and the bottom surface of the mounting surface is inclined and supported on the inclined surfaces of the front and rear ends of the frame body on one side of the winding frame 1; a pair of positioning holes are longitudinally provided on the frame bodies on both sides of the winding frame 1 to cooperate with the fixing bolts, so that the electric control box 8 can be installed on any side of the winding frame 1.

[0019] Embodiment 2: The technical solution is basically the same as that of Embodiment 1, except that Figures 5 to 10 and Fig.13As shown, the connecting assembly rotates through a rotating tube 10 in the end of the cross frame 6 and a connecting shaft 11 inserted into the rotating tube 10, the outer end of the connecting shaft 11 is fixedly connected to a first spline sleeve 12, a lap groove is provided on one side of the inner end of the connecting shaft 11, both ends of the winding roller 7 are fixedly connected to a clamping block 20, a countersunk hole is provided in the middle of the outer end surface of the clamping block 20, a connecting bolt is provided in the countersunk hole, and a threaded groove is provided on the inner bottom surface of the lap groove to cooperate with the connecting bolt.

[0020] In the present invention, the switchable drive mechanism includes a support seat 13 arranged on the outer side of the inner bottom surface of the electric control box 8, a second spline sleeve 15 rotatably penetrated on the upper part of the support seat 13, the outer end of the second spline sleeve 15 is fixedly connected to the driven pulley, a servo motor 14 is installed on one side of the support seat 13, a driving pulley is fixedly connected to the driving shaft of the servo motor 14, a transmission belt 16 is sleeved between the driving pulley and the driven pulley, a first spline shaft 19 is movably inserted in the inner end of the second spline sleeve 15, and the first spline shaft 19 is movably inserted in the inner end of the second spline sleeve 15. A movable ring 17 is rotatably sleeved on the key shaft 19 through a bearing ring, and electric push rods 18 are horizontally installed on the front and rear ends of the inner side of the movable ring 17, and the fixed ends of the electric push rods 18 are fixedly connected to the inner wall of the electric control box 8; guide holes are opened on the lower parts of the frames on both sides of the winding frame 1, and a through hole coaxial with the guide hole is opened on the lower inner wall of the electric control box 8. The inner end of the first spline shaft 19 extends from the guide hole on one side of the winding frame 1 and is matched with the first spline sleeve 12 at the lower end of the cross frame 6.

[0021] Embodiment 3: The technical solution is basically the same as that of Embodiment 1, except that Figure 3 and Fig.12 As shown, the transmission mechanism includes a driving assembly arranged in the middle of the cross frame 6, a transmission box 24 fixedly arranged inside the outer end of the transmission cavity, a screw 21 rotatably arranged on the inner side of the transmission box 24, a driven shaft 31 rotatably arranged on the outer side of the transmission box 24 and a second bevel gear 32 fixedly connected to the driven shaft 31, a driven bevel gear ring 33 fixedly sleeved on the rotating tube 10 and meshing with the second bevel gear 32, a disconnection assembly is arranged inside the transmission box 24, and a reverse thrust assembly for the L-shaped moving seat 22 to return to the threaded section of the screw 21 is also installed at the connection between the transmission cavity and the middle of the cross frame 6; The driving assembly includes a non-locking motor arranged inside the docking seat 5, a transmission shaft 25 coaxially installed on the driving shaft of the non-locking motor, and an active bevel gear ring 26 fixedly sleeved on the transmission shaft 25. The inner ends of multiple screws 21 are fixedly connected with a first bevel gear 27 meshing with the active bevel gear ring 26. The L-shaped moving seat 22 is located in the transmission cavity and has a threaded hole on the seat body to cooperate with the screw 21. The surface of the rod body of one-third of the length of the inner end of the screw 21 is smooth, so that when the screw 21 continues to rotate, the L-shaped moving seat 22 can be docked on the smooth section of the screw 21 without moving.

[0022] In the present invention, the reverse thrust assembly includes a fixed ring plate fixed around the middle cavity of the cross frame 6, an electromagnet ring 34 installed on the outer side of the fixed ring plate and a rubidium magnetic ring 35 installed at the inner bottom end of the L-shaped movable seat 22. When energized, the electromagnet ring 34 has the same magnetic pole as the opposite surface of the rubidium magnetic ring 35; the disconnection assembly includes a movable ring plate 28 vertically arranged inside the transmission box 24, an electric telescopic rod 30 installed on both sides of the outer side of the movable ring plate 28, and a second spline shaft 29 rotatably arranged in the inner circle of the movable ring plate 28. The fixed end of the electric telescopic rod 30 is fixed on the inner wall of the transmission box 24, the outer end of the screw 21 movably penetrates into the transmission box 24, and is provided with a second spline groove that cooperates with the inner end of the second spline shaft 29, and the inner end of the driven shaft 31 movably penetrates into the transmission box 24, and is provided with a second spline groove that cooperates with the inner end of the second spline shaft 29. The inner end of the second spline shaft 29 cooperates with the third spline groove, and the outer end of the second spline shaft 29 is movably inserted in the third spline groove; through the cooperation of the reverse thrust component, the disconnection component and the driving component, it is convenient to realize the lateral adjustment of the L-shaped movable seat 22, and at the same time, by adjusting the distance between the film guide roller 23 and the winding roller 7, it is convenient to make the position of the film guide roller 23 play a role in guiding and supporting the film body during the process of winding the heat shrink film, and at the same time, it is also possible to make the film guide roller 23 move and press on the wound heat shrink film roll, so that the heat shrink film roll wound into different thicknesses can be pressed to avoid the heat shrink film roll from loosening, and to avoid the heat shrink film roll rolled on this winding roller 7 from loosening when the next winding roller 7 is switched subsequently; improve the efficiency of winding the heat shrink film and the continuity of switching the winding roller 7.

[0023] Working principle: In this embodiment, the present invention also proposes a method for using a winding device for heat shrink film production, comprising the following steps: Step 1, firstly, electrically connect each electrical component of the device to the control panel on the electric control box 8 through wires, then electrically connect the electric control box 8 to the external power supply device, then connect and fix the end of the winding roller 7 to the inner end of the connecting shaft 11 through the clamping block 20 and the connecting bolt, and then, when it is necessary to start a single winding roller 7 for winding operation, start the reduction motor 9 to drive the rotating shaft 3 to rotate, and drive the docking seat 5 and the cross frame 6 connected to the connecting plate 4 to rotate through the rotation, rotate one of the four ends of the cross frame 6 downward, and align the first spline sleeve 12 on the bottom end of the cross frame 6 with the first spline shaft 19; Step 2, then start the electric push rod 18 to drive the moving ring 17 to move toward the cross frame 6, and the moving ring 17 that moves horizontally can drive the inner end of the first spline shaft 19 to be inserted into the first spline sleeve 12 at the bottom end of the cross frame 6, and then start the servo motor 14, under the cooperation of the driving pulley, the driven pulley and the transmission belt 16, drive the second spline sleeve 15 to rotate, at this time, the outer end of the first spline shaft 19 is inserted into the second spline sleeve 15, and then the first spline shaft 19 will rotate with the second spline sleeve 15, and the rotating first spline shaft 19 drives the connecting shaft 11 fixed to the first spline sleeve 12 to rotate, so when this connecting shaft 11 rotates, it can drive the connected winding roller 7 to rotate; Step 3: Before the winding roller 7 is driven to rotate by the switching drive mechanism, the disconnection component inside the corresponding transmission box 24 needs to be controlled, and the movable ring plate 28 is driven to move outward inside the transmission box 24 by starting the electric telescopic rod 30, and the inner end of the second spline shaft 29 is driven to exit the second spline groove on the screw 21 by the outward moving movable ring plate 28, thereby The transmission of the driven shaft 31 to the screw 21 can be disconnected, and then the transmission shaft 25 is driven to rotate by starting the lock-free motor, and the active bevel gear ring 26 on the transmission shaft 25 cooperates with the first bevel gear 27 to drive the screw 21 to rotate. Since the L-shaped moving seat 22 is on the bare rod section at the inner end of the screw 21 at this time, in order to make the L-shaped moving seat 22 return to the threaded section of the screw 21, the electromagnetic ring 34 is started and energized to generate a magnetic field that repels the rubidium magnetic ring 35, thereby generating a thrust for the rubidium magnetic ring 35 installed on the L-shaped moving seat 22, and then when the screw 21 rotates forward, the L-shaped moving seat 22 is moved back to the threaded section of the screw 21, and then the electromagnetic ring 34 can be powered off, and then the screw 21 rotates forward. Under the action of the rotation, the L-shaped movable seat 22 is driven to move outward, so as to adjust the distance between the film guide roller 23 and the winding roller 7. Firstly, by adjusting the position of the film guide roller 23, it can play a film guiding and supporting role in the process of winding the heat shrink film. Secondly, after the film guide roller 23 is moved and pressed on the wound heat shrink film roll, the heat shrink film roll wound into different thicknesses can be pressed, so that the winding roller 7 has the tensioning force regulating function in the process of winding the heat shrink film. Through the movement and adjustment of the film guide roller 23, the tensioning force of the heat shrink film can be accurately regulated, the winding quality and adaptability can be improved, the heat shrink film roll can be prevented from being loosened, and when the next winding roller 7 is switched later, the heat shrink film roll wound on this winding roller 7 can be prevented from being loosened. Step 4, when it is necessary to synchronously drive two or more winding rollers 7 for winding operation, first drive the disconnection component on the corresponding winding roller 7 to realize transmission connection between the driven shaft 31 and the screw 21, and then start the screw 21 to reverse, so that the L-shaped moving seat 22 on the threaded section of the screw 21 moves with the rubidium magnetic ring 35 toward the electromagnet ring 34 after power is cut off, and then the L-shaped moving seat 22 is magnetically attracted to the electromagnet ring 34 after power is cut off under the magnetic attraction of the rubidium magnetic ring 35, so that the L-shaped moving seat 22 moves on the bare rod section of the screw 21; Step five, then through the cooperation between the driving assembly and the multiple screws 21, the transmission of the multiple driven shafts 31 can be driven, and through the cooperation between the second bevel gear 32 and the driven bevel gear ring 33, the rotating tube 10 is driven to rotate, and the rotation of the rotating tube 10 drives the connecting shaft 11 to rotate, and then drives the winding roller 7 to rotate, so as to achieve the purpose of synchronous rotation of the multiple winding rollers 7, and to achieve the effect of rotating and winding the heat shrink film by driving a single, two or more winding rollers 7 with a driving source, effectively improving the practicality of the device when in use, and effectively improving the convenience of changing rollers and winding when the heat shrink film is continuously wound. Finally, by removing the connecting bolts on the clamping block 20, the winding roller 7 with the heat shrink film roll wound can be disassembled.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A winding device for heat shrink film production, comprising a winding frame (1) and bearing seats (2) arranged on both sides of the top of the winding frame (1), characterized in that: A rotating shaft (3) is installed in the inner ring of the bearing seat (2), and a connecting plate (4) is fixedly connected to the inner ends of the two rotating shafts (3). A docking seat (5) is fixedly connected to the inner side of the connecting plate (4) by bolts, and a cross frame (6) is fixedly connected to the inner end of the docking seat (5). A winding roller (7) is rotatably provided between the four ends of the two cross frames (6), and a connecting assembly for installing the winding roller (7) is installed in the four ends of the cross frame (6); A transmission cavity connected to the middle part is provided in each of the four frame bodies of the cross frame (6), an inverted L-shaped moving seat (22) is slidably provided in the transmission cavity, a rectangular strip opening connected to the transmission cavity is provided on the frame body on the same side of the cross frame (6), and the outer end of the L-shaped moving seat (22) extends out from the rectangular strip opening, and a transmission mechanism for moving the L-shaped moving seat (22) is provided inside the transmission cavity, and a film guide roller (23) is rotatably provided between the outer ends of the L-shaped moving seats (22) on the two cross frames (6); An electric control box (8) is provided on one side of the winding frame (1), and a plurality of control panels are installed on the top of the electric control box (8). A reduction motor (9) for driving one of the rotating shafts (3) is installed in the upper part of the electric control box (8), and a switchable drive mechanism for rotating four winding rollers (7) is installed in the lower part of the electric control box (8).

2. A heat shrink film production winding device according to claim 1, characterized in that: The bottom edge of the connecting plate (4) is provided with a supporting arc plate, the outer end surface of the rotating shaft (3) is provided with a first spline groove, and the output shaft of the reduction motor (9) is fixedly connected with a spline rod inserted in the first spline groove.

3. A heat shrink film production winding device according to claim 1, characterized in that: The connecting assembly comprises a rotating tube (10) rotatably inserted into the end of the cross frame (6) and a connecting shaft (11) inserted into the rotating tube (10); the outer end of the connecting shaft (11) is fixedly connected to a first spline sleeve (12); a lap groove is provided on one side of the inner end of the connecting shaft (11); both ends of the winding roller (7) are fixedly connected to a clamping block (20); a countersunk hole is provided in the middle of the outer end surface of the clamping block (20); a connecting bolt is provided in the countersunk hole; and a threaded groove is provided on the inner bottom surface of the lap groove to match the connecting bolt.

4. A winding device for heat shrink film production according to claim 3, characterized in that: The switchable drive mechanism comprises a support seat (13) arranged on the outer side of the inner bottom surface of the electric control box (8), and a second spline sleeve (15) rotatably inserted into the upper part of the support seat (13); the outer end of the second spline sleeve (15) is fixedly connected to a driven pulley; a servo motor (14) is mounted on one side of the support seat (13); a driving pulley is fixedly connected to the drive shaft of the servo motor (14); a transmission belt (16) is sleeved between the driving pulley and the driven pulley; a first spline shaft (19) is movably inserted into the inner end of the second spline sleeve (15); a moving ring (17) is rotatably sleeved on the first spline shaft (19) via a bearing ring; electric push rods (18) are transversely mounted at the front and rear ends of the inner side surface of the moving ring (17); and the fixed end of the electric push rod (18) is fixedly connected to the inner wall of the electric control box (8).

5. A heat shrink film production winding device according to claim 4, characterized in that: Guide holes are provided at the lower parts of the two side frames of the winding frame (1), and a through hole coaxial with the guide hole is provided on the lower inner wall of the electric control box (8). The inner end of the first spline shaft (19) extends out from the guide hole on one side of the winding frame (1) and is arranged in cooperation with the first spline sleeve (12) at the lower end of the cross frame (6).

6. A winding device for heat shrink film production according to claim 1, characterized in that: The transmission mechanism comprises a driving assembly arranged in the middle of a cross frame (6), a transmission box (24) fixedly arranged inside the outer end of a transmission cavity, a screw (21) rotatably arranged on the inner side of the transmission box (24), a driven shaft (31) rotatably arranged on the outer side of the transmission box (24), and a second bevel gear (32) fixedly connected to the driven shaft (31); a driven bevel gear ring (33) meshing with the second bevel gear (32) is fixedly sleeved on the rotating tube (10); a disconnecting assembly is arranged inside the transmission box (24); and a reverse thrust assembly for returning the L-shaped moving seat (22) to the threaded section of the screw (21) is also installed at the connection point between the transmission cavity and the middle of the cross frame (6).

7. A heat shrink film production winding device according to claim 6, characterized in that: The driving assembly comprises a non-locking motor arranged inside the docking seat (5), a transmission shaft (25) coaxially mounted on the non-locking motor driving shaft, and an active bevel gear ring (26) fixedly sleeved on the transmission shaft (25); the inner ends of the plurality of screw rods (21) are all fixedly connected with a first bevel gear (27) meshing with the active bevel gear ring (26); a threaded hole is formed on the seat body of the L-shaped movable seat (22) located in the transmission cavity to cooperate with the screw rod (21); and the surface of the rod body of the inner end of the screw rod (21) is smooth over one-third of its length.

8. A winding device for heat shrink film production according to claim 7, characterized in that: The reverse thrust assembly comprises a fixed ring plate fixed around the central cavity of the cross frame (6), an electromagnet ring (34) mounted on the outer side of the fixed ring plate, and a rubidium magnetic ring (35) mounted on the inner bottom end of the L-shaped movable seat (22); when power is supplied, the electromagnet ring (34) has the same magnetic pole as the rubidium magnetic ring (35) on the opposite side.

9. A winding device for heat shrink film production according to claim 7, characterized in that: The disconnection assembly comprises a movable ring plate (28) vertically arranged inside the transmission box (24), an electric telescopic rod (30) mounted on both sides of the outer side of the movable ring plate (28), and a second spline shaft (29) rotatably arranged in the inner ring of the movable ring plate (28), wherein the fixed end of the electric telescopic rod (30) is fixed to the inner wall of the transmission box (24), the outer end of the screw rod (21) movably penetrates into the transmission box (24) and is provided with a second spline groove that cooperates with the inner end of the second spline shaft (29), the inner end of the driven shaft (31) movably penetrates into the transmission box (24) and is provided with a third spline groove that cooperates with the inner end of the second spline shaft (29), and the outer end of the second spline shaft (29) is movably inserted into the third spline groove.

10. The heat shrink film production winding device according to claim 1, characterized in that: The front and rear ends of the installation surface of the electric control box (8) are fixedly connected to a mounting seat, a pair of fixing bolts are inserted between the two mounting seats, the bottom surface of the mounting seat is inclined, and is supported on the inclined surface of the front and rear ends of the frame body of one side of the winding frame (1); a pair of positioning holes are longitudinally opened on the frame bodies on both sides of the winding frame (1) to cooperate with the fixing bolts.

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