Automatic roll changing mechanism for thin film
By designing a worm gear rotary reducer and a movable block, the problem of inaccurate gear transmission in the film roll changing mechanism was solved, realizing the automated disassembly and installation of the roll core and ensuring the stability and precision of film quality.
Patent Information
- Application Number
- CN202511711841.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-20
- Publication Date
- 2026-02-03
AI Technical Summary
The existing film roll changing mechanism has a gap in the gear transmission structure, which leads to inaccurate switching angles, affects automatic film unloading and core replacement, and causes unstable film roll quality.
The design employs a worm gear rotary reducer for two-stage reduction, combined with the design of movable blocks and adapter slots, to achieve automatic engagement and disengagement of the core. The driven rod pushes the disc to separate the insertion rod from the connecting rod, ensuring the core position is fixed. The cooperation of the L-shaped rod and guide block enables unmanned automatic loading and unloading of the core.
This ensures stable film quality during roll changing, prevents the film from coming into contact with external objects, and enables unmanned automatic loading and unloading of the core, thus improving the accuracy and stability of film winding.
Smart Images
Figure CN121448864A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of film roll changing, and particularly relates to an automatic film roll changing mechanism. BACKGROUND
[0002] In recent years, due to the development of science and technology, the demand for various films, including lithium battery separators, capacitor films, packaging films and PVB films, is increasing, so a large number of production lines for various films are built, and when the films are produced to a certain amount, roll changing is required. In order to improve the production capacity, on-line roll changing is often used.
[0003] In the prior art, when the roll is changed, a driving motor is often used to connect a pinion to drive a large gear of a rotating disc to slowly rotate 180°, and a film breaking mechanism is provided to realize automatic roll changing. However, the gear transmission structure inevitably has a gap, which causes inaccurate conversion angle, and it is inconvenient to automatically unload the film and replace the roll core, and the quality of the film roll is unstable. SUMMARY
[0004] The present application aims to provide an automatic film roll changing mechanism to solve the problems in the background art.
[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: An automatic film roll changing mechanism includes symmetrical bases, symmetrical guide rollers are rotatably connected to the upper part of the side wall of the base, symmetrical rotating plates are attached above the guide rollers, a mounting rod is fixedly connected between the rotating plates, a mounting plate is fixedly connected to the upper end of one side of the base, a turbine shaft is rotatably connected to the upper end of the mounting plate, the output end of the turbine shaft is fixedly connected to the rotating plate close to the mounting plate, a rotary reducer is transmissionally connected to the outer wall of the turbine shaft, a speed reducer is transmissionally connected to the upper end of the rotary reducer, and a motor is transmissionally connected to one side of the speed reducer.
[0006] As a further scheme of the present application, symmetrical roll cores are arranged between the rotating plates, symmetrical roll changing guide rollers are transmissionally connected between the rotating plates, a driving member for driving the roll core to rotate is transmissionally connected to the side wall of the rotating plate, the film is wound by the rotation of the roll core, and a dismounting mechanism for dismounting the roll core is arranged on the side of the base away from the motor.
[0007] As a further scheme of the present application: the disassembling mechanism comprises symmetrical bottom plates, the upper end of each of the bottom plates is slidably connected with a moving plate on the side close to the base, a horizontal plate is arranged above the moving plate, a vertical plate is fixedly connected with the horizontal plate on the side close to the base, a movable block is slidably connected with the upper part of the vertical plate on one side, an adaptive slot is formed in the upper end of the movable block, a connecting rod is fixedly connected with each end of the winding core, an insertion rod is elastically connected with the driving member on the side close to the middle of the output end, and the other end of the insertion rod is clamped in the middle of the inner cavity of the connecting rod.
[0008] As a further scheme of the present application: the vertical plate is slidably connected with a driving plate on the upper part of the side close to the mounting plate, a driven rod is fixedly connected with the driving plate on the upper part of the side close to the rotating plate, the driven rod is located on the side of the vertical plate away from the movable block, and the outer wall of the insertion rod is fixedly connected with a disc.
[0009] As a further scheme of the present application: a L-shaped block is arranged below the movable block, the L-shaped block is slidably connected with the vertical plate on the side away from the insertion rod, the side wall of the L-shaped block is attached to the driving plate, a fourth slot is formed in the side of the driving plate close to the L-shaped block, a third slot is formed in the side of the fourth slot away from the vertical plate, a first slot is formed in the side of the fourth slot away from the third slot, and a second slot is formed in the end of the first slot and the third slot away from the fourth slot.
[0010] As a further scheme of the present application: a driving rod is fixedly connected with the L-shaped block on the side close to the driving plate, the driving rod is slidably connected with the first slot, the second slot, the third slot and the fourth slot, symmetrical guide blocks are arranged at the connection between the fourth slot and the first slot, the two guide blocks are elastically connected with the side walls of the inner cavities of the first slot, and an inclined surface is formed in the upper end of the guide block.
[0011] As a further scheme of the present application: a sleeve is arranged on the side of the L-shaped block away from the driving plate, the side wall of the sleeve on the side close to the rotating plate is fixedly connected with the vertical plate, a through slot is formed in the side wall of the sleeve, a push plate is slidably connected with the inner cavity of the sleeve on the side away from the L-shaped block, an extension plate is fixedly connected with the L-shaped block on the side close to the lower end of the sleeve, and an elastic telescopic rod is fixedly connected with the L-shaped block on the side close to the upper end of the extension plate.
[0012] As a further scheme of the present application: a driven block is attached to the side of the upper end of the sleeve close to the L-shaped block, the lower end of the driven block is drivingly connected with the upper end of the sleeve through a plurality of telescopic rods, a recess is formed in the lower end of the side of the driven block close to the L-shaped block, and the vertical height of the recess is the same as the vertical height of the side of the L-shaped block close to the sleeve.
[0013] As a further scheme of the present application: the upper end surface of the driven block is provided with a first inclined surface, and the lower end surface of the movable block is provided with a second inclined surface, the second inclined surface and the first inclined surface are in close contact.
[0014] As a further scheme of the present application: the upper end of the bottom plate is fixedly connected with a support away from one side of the rotating plate, the upper end of the support is fixedly connected with a transition rod, the side of the transition rod close to the vertical plate is fixedly connected with a blanking rod, the lower end of the blanking rod is located in a plane lower than the plane where the lower end of the transition rod is located, the outer wall of the connecting rod is provided with an annular groove, the annular groove and the blanking rod are located in the same vertical plane, and the width of the annular groove is the same as the width of the transition rod and the blanking rod.
[0015] Compared with the prior art, the present application has the following beneficial effects: The rotary speed reducer adopting the turbine worm has a secret internal structure and high transmission precision, ensures the film quality during the winding process, and ensures that the start and stop positions of the winding core are consistent, adopts two-stage speed reduction, has a self-locking function, ensures that the position of the winding core is fixed during the winding process, and ensures that the film quality is stable; the full winding core is clamped and supported through the movable block and the matching groove, the disc is pushed by the driven rod to separate the plug-in rod from the connecting rod, the full winding core is conveniently disassembled, the empty winding core, the driven block and the driving rod are driven by the L-shaped rod to cooperate with the fourth groove, the third groove and the second groove, the plug-in rod is automatically plugged into and fixed to the empty winding core when the empty winding core moves to the previous position of the full winding core, the position away from the rotating plate is located after the L-shaped rod moves downward together with the vertical plate and the horizontal plate, the full winding core is disassembled from the matching groove through the cooperation of the blanking rod, the transition rod and the annular groove during the horizontal resetting process of the vertical plate, so that the automatic loading and unloading of the winding core is realized, and the film does not come into contact with external objects during the disassembly of the winding core, so that the film is not damaged, and the quality of the film is further ensured to be stable. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the present application.
[0017] Figure 2 It is a schematic diagram of the structure of the turbine shaft in the present application.
[0018] Figure 3 It is a schematic diagram of the structure of the disassembly mechanism in the present application.
[0019] Figure 4 It is a schematic diagram of the internal structure of the sleeve in the present application.
[0020] Figure 5 It is a schematic diagram of the structure of the driven block in the present application.
[0021] Figure 6 It is a schematic diagram of the structure of the movable block in the present application.
[0022] Figure 7 Figure 1 is a structural schematic diagram of the driving plate in the present application.
[0023] Figure 8 Figure 2 is a structural schematic diagram of the B area in the present application. Figure 7
[0024] Figure 9 Figure 3 is a structural schematic diagram of the A area in the present application. Figure 3
[0025] Figure 10 Figure 4 is a structural schematic diagram of the driving member in the present application.
[0026] In the figure: 1, base; 2, mounting plate; 3, motor; 4, speed reducer; 5, rotary speed reducer; 6, turbine shaft; 7, driving member; 8, rotating plate; 9, roll changing guide roller; 10, roll core; 11, bottom plate; 12, moving plate; 13, vertical plate; 14, horizontal plate; 15, sleeve; 16, push plate; 17, extension plate; 18, elastic telescopic rod; 19, L-shaped block; 20, driven block; 21, first inclined surface; 22, groove; 23, movable block; 24, matching groove; 25, second inclined surface; 26, connecting rod; 27, annular groove; 28, insertion rod; 29, disc; 30, driving plate; 31, driven rod; 32, No. 1 groove; 33, No. 2 groove; 34, No. 3 groove; 35, No. 4 groove; 36, driving rod; 37, guide block; 38, mounting rod; 39, guide wheel; 40, transition rod; 41, blanking rod. DETAILED DESCRIPTION
[0027] Please refer to Figures 1-3 In the embodiment of the application, the automatic film roll changing mechanism comprises symmetrical bases 1, symmetrical guide wheels 39 rotatably connected to the upper part of the side walls of the bases 1, symmetrical rotating plates 8 arranged on the upper part of the guide wheels 39, mounting rods 38 fixedly connected between the symmetrical rotating plates 8, the two rotating plates 8 connected as a whole through the symmetrical mounting rods 38, an installation plate 2 fixedly connected to the upper end of one side of the base 1, a turbine shaft 6 rotatably connected to the upper end of the middle part of the installation plate 2, the output end of the turbine shaft 6 fixedly connected to the rotating plate 8 close to the installation plate 2, i.e. when the turbine shaft 6 rotates, the symmetrical rotating plates 8 are driven to rotate synchronously through the cooperation of the rotating plate 8 and the mounting rod 38 connected thereto, a slewing reducer 5 transmissionally connected to the outer wall of the turbine shaft 6, a speed reducer 4 transmissionally connected to the upper end of the slewing reducer 5, and a motor 3 transmissionally connected to one side of the speed reducer 4, i.e. when the motor 3 works, the symmetrical rotating plates 8 are driven to rotate through the turbine shaft 6, and the two-stage speed reduction is realized through the cooperation of the speed reducer 4 and the slewing reducer 5, so that the speed reduction ratio is very large, the symmetrical rotating plates 8 rotate slowly, and automatically stop rotating after rotating 180°, symmetrical roll cores 10 arranged between the symmetrical rotating plates 8, symmetrical roll changing guide rollers 9 transmissionally connected between the symmetrical rotating plates 8, and driving members 7 transmissionally connected to the side walls of the rotating plates 8 for driving the roll cores 10 to rotate, so that the film is wound through the rotation of the roll cores 10, and the roll cores 10 are called full roll cores 10 when the film wound on the outer wall of the roll core 10 reaches a certain weight or length, and vice versa, the driving rotating plates 8 drive the full roll cores 10 and the empty roll cores 10 to rotate synchronously and slowly by 180°, so that the positions of the full roll cores 10 and the empty roll cores 10 are exchanged, and then the empty roll cores 10 are driven to rotate and continue to wind the film.
[0028] In order to continuously realize the position exchange of the full roll cores 10 and the empty roll cores 10, after the full roll cores 10 and the empty roll cores 10 are preliminarily exchanged in position, the full roll cores 10 need to be disassembled from between the symmetrical rotating plates 8 and replaced with empty roll cores 10, so as to facilitate the replacement of the full roll cores 10 next time.
[0029] The disassembling mechanism comprises symmetrical bottom plates 11, the upper ends of the bottom plates 11 are slidably connected with moving plates 12 near one side of the base 1, the upper ends of the middle parts of the bottom plates 11 are drivingly connected with first electric telescopic push rods for driving the horizontal movement of the moving plates 12, the upper parts of the moving plates 12 are provided with horizontal plates 14, the horizontal plates 14 are drivingly connected with the moving plates 12 through symmetrical second electric telescopic push rods, the side of the horizontal plate 14 near the base 1 is fixedly connected with a vertical plate 13, the upper part of one side of the vertical plate 13 is slidably connected with a movable block 23, the upper end of the middle part of the movable block 23 is provided with an adaptive groove 24, when it is needed to disassemble the full winding core 10 from the rotating plate 8, at this time, the movable block 23 is driven by the moving plate 12 through the first electric telescopic push rod to synchronously approach the position of the full winding core 10, so that the center position of the adaptive groove 24 and the center position of the full winding core 10 are located in the same vertical plane, at this time, the horizontal plate 14 and the vertical plate 13 are synchronously moved upward through the symmetrical second electric telescopic push rods, so that the inner cavity bottom of the adaptive groove 24 approaches the position of the winding core 10.
[0030] The two ends of the winding core 10 are fixedly connected with connecting rods 26, the middle part of the output end of the driving part 7 is elastically connected with an inserting rod 28, the end of the inserting rod 28 away from the driving part 7 is clamped in the middle part of the inner cavity of the connecting rod 26, so that when the output end of the driving part 7 rotates, the inserting rod 28 is synchronously rotated, and then the winding core 10 is driven to rotate through the clamping cooperation of the inserting rod 28 and the connecting rod 26, and then the film is continuously wound on the outer wall of the winding core 10, in the process that the vertical plate 13 drives the movable block 23 to move upward through the second electric telescopic push rod, the inner cavity bottom of the adaptive groove 24 gradually approaches the lower outer wall of the connecting rod 26, until the inner cavity bottom of the adaptive groove 24 is attached to the lower outer wall of the connecting rod 26, at this time, the second electric telescopic push rod does not drive the movable block 23 to move upward, at this time, the movable block 23 is clamped and supported through the clamping of the connecting rod 26, so that the clamping and supporting of the winding core 10 are realized, at this time, the connecting rod 26 is located in the inner cavity of the adaptive groove 24 and moves synchronously with the movable block 23, so that the full winding core 10 moves away from the position of the rotating plate 8, and the disassembly of the full winding core 10 is completed.
[0031] The vertical plate 13 is slidably connected to the side upper portion of the mounting plate 2, and the driving plate 30 is fixedly connected to the upper portion of the driving plate 30 close to the side of the rotating plate 8, and the driven rod 31 is located on the side of the vertical plate 13 away from the movable block 23, and the outer wall of the plug-in rod 28 is fixedly connected to the disc 29, and the driven rod 31 is located between the disc 29 and the connecting rod 26, and when the driven rod 31 moves away from the movable block 23, it will approach the outer wall of the disc 29, and with the continuous movement of the driven rod 31, the outer wall of the driven rod 31 will contact the outer wall of the disc 29 and push the disc 29 away from the position of the movable block 23, and then drive the plug-in rod 28 to move horizontally by pushing the disc 29, so that the plug-in rod 28 is separated from the middle of the inner cavity of the connecting rod 26, and the clamping fit between the connecting rod 26 and the plug-in rod 28 is released, so that the full core 10 can move synchronously with the movable block 23, and the L-shaped block 19 is arranged below the movable block 23, and the L-shaped block 19 is slidably connected to the side of the vertical plate 13 away from the plug-in rod 28, and the sidewall of the L-shaped block 19 is attached to the driving plate 30, and the lower end of the L-shaped block 19 is connected to the upper end surface of the horizontal plate 14 through the third electric telescopic push rod, and the side of the driving plate 30 close to the L-shaped block 19 is provided with the fourth slot 35, and the side of the fourth slot 35 away from the vertical plate 13 is provided with the third slot 34, and the side of the fourth slot 35 away from the third slot 34 is provided with the first slot 32, and the first slot 32 and the third slot 34 are commonly provided with the second slot 33 away from the fourth slot 35.
[0032] The driving rod 36 is fixedly connected to the side of the L-shaped block 19 close to the driving plate 30, and the driving rod 36 is slidably connected to the first slot 32, the second slot 33, the third slot 34 and the fourth slot 35, and the connection between the fourth slot 35 and the first slot 32 is provided with symmetrical guide blocks 37, and the two guide blocks 37 are elastically connected to the middle of the inner cavity of the first slot 32, and the upper end of the guide block 37 is provided with an inclined surface, that is, when the upper end surface of the guide block 37 is extruded, the symmetrical guide blocks 37 will shrink into the inner cavity of the first slot 32, and will not hinder the movement of the object, that is, when the driving rod 36 moves downward in the inner cavity of the first slot 32, the first slot 32 will approach the inclined surface of the upper end of the guide block 37, and at this time the guide blocks 37 will move away from each other without hindering the downward movement of the first slot 32, and when the first slot 32 moves upward and contacts the lower end surface of the guide block 37, the first slot 32 cannot push the guide block 37 to shrink into the inner cavity of the first slot 32, but will move along the inner cavity of the fourth slot 35 under the guidance of the guide block 37, thereby driving the driving plate 30 to move horizontally.
[0033] When the L-shaped block 19 drives the driving rod 36 to move upward, the driving rod 36 will relatively move along the fourth slot 35 to the position of the third slot 34, and in the process of the relative movement of the driving rod 36 in the inner cavity of the fourth slot 35, the driving plate 30 will be driven to move horizontally to the direction of the rotating plate 8, and in this process, the driven rod 31 will be in contact with the outer wall of the disc 29 and push the disc 29 away from the position of the winding core 10, so as to separate the plug-in rod 28 from the connecting rod 26, facilitate the disassembly of the winding core 10 from the outer wall of the plug-in rod 28, and complete the disassembly of the full winding core 10. When the connecting rod 26 moves vertically in the inner cavity of the third slot 34, the outer wall of the driving rod 36 is in contact with the side wall of the inner cavity of the third slot 34, so as to limit the position of the driving plate 30, so that the driven rod 31 pushes the disc 29 to keep away from the position of the connecting rod 26, so that the plug-in rod 28 and the connecting rod 26 are kept in a separated state. The side of the L-shaped block 19 away from the driving plate 30 is provided with a sleeve 15, the side wall of the sleeve 15 close to the rotating plate 8 is fixedly connected with the vertical plate 13, the side wall of the sleeve 15 is provided with a through slot, the inner cavity of the sleeve 15 away from the L-shaped block 19 is slidably connected with a push plate 16, and the push plate 16 is in transmission connection with the side wall of the inner cavity of the sleeve 15, that is, the push plate 16 can move horizontally in the inner cavity of the sleeve 15. The push plate 16 can be driven to move horizontally reciprocatingly by an electric push rod or a spring. The upper end of the sleeve 15 away from the L-shaped block 19 is provided with a placing hole, the empty winding core 10 can be placed in the inner cavity of the sleeve 15 through the placing hole, and under the pushing action of the push plate 16, the empty winding core 10 moves to the inner cavity of the L-shaped block 19. When the L-shaped block 19 moves upward, the empty winding core 10 in the inner cavity of the sleeve 15 moves upward synchronously.
[0034] The lower end of the sleeve shell 15 is fixedly connected with an extension plate 17 near one side of the L-shaped block 19, the upper end of the extension plate 17 is fixedly connected with an elastic telescopic rod 18 near one side of the L-shaped block 19, when the lower end surface of the L-shaped block 19 coincides with the upper end surface of the sleeve shell 15, the upper end surface of the elastic telescopic rod 18 is attached to the lower end surface of the L-shaped block 19, in the process of synchronous upward movement of the L-shaped block 19 driving the empty roll core 10, the elastic telescopic rod 18 will pop up, thereby blocking the roll core 10 in the inner cavity of the sleeve shell 15, the upper end of the sleeve shell 15 is attached to the driven block 20 near one side of the L-shaped block 19, the lower end of the driven block 20 is drivingly connected with the upper end of the sleeve shell 15 through a plurality of telescopic rods, the lower end of the driven block 20 near one side of the L-shaped block 19 is provided with a groove 22, the vertical height of the groove 22 is the same as the vertical height of the L-shaped block 19 near one side of the sleeve shell 15, in the process of upward movement of the L-shaped block 19, the outer wall of the L-shaped block 19 near one side of the sleeve shell 15 will enter the inner cavity of the groove 22, and the L-shaped block 19 will drive the driven block 20 to move synchronously by contacting the top of the inner cavity of the groove 22, the L-shaped block 19 is provided with a magnet near the middle of one side of the sleeve shell 15, the inner cavity of the groove 22 is covered with an iron sheet, after the L-shaped block 19 contacts the groove 22, the L-shaped block 19 will drive the driven block 20 to move, that is, in the process of upward movement of the L-shaped block 19 driven by the third electric telescopic push rod, the L-shaped block 19 will drive the empty roll core 10 to move synchronously, and also drive the driving rod 36 to move upward, at this time, the elastic telescopic rod 18 will automatically pop up and block one side of the sleeve shell 15 near the L-shaped block 19, and the driving plate 30 and the driven rod 31 horizontally approach the position of the rotating plate 8, so that the plug-in rod 28 is separated from the connecting rod 26, thereby facilitating the disassembly of the full roll core 10, when the driving rod 36 moves to the connection between the third groove 34 and the fourth groove 35, at this time, the L-shaped block 19 near the sleeve shell 15 contacts the top of the inner cavity of the groove 22, when the driving rod 36 moves in the inner cavity of the third groove 34, the driving plate 30 and the driven rod 31 keep away from the vertical plate 13, and the L-shaped block 19 drives the empty roll core 10 and the groove 22 to move synchronously.
[0035] The first inclined surface 21 is arranged on the upper end surface of the driven block 20, and the second inclined surface 25 is arranged on the lower end surface of the movable block 23, the second inclined surface 25 and the first inclined surface 21 are in close contact, during the upward movement of the driven block 20, the movable block 23 is driven to move away from the position of the driving plate 30 together with the full winding core 10, until the first inclined surface 21 and the second inclined surface 25 are separated, when the side wall of the driven block 20 is in close contact with the side wall of the movable block 23, the movable block 23 remains stationary at this time, the L-shaped block 19 drives the empty winding core 10 to gradually move to the position previously occupied by the full winding core 10, and when the empty winding core 10 and the full winding core 10 are located in the same horizontal plane, the driving rod 36 moves to the connection between the second groove 33 and the third groove 34 at this time, the driving rod 36 loses the limiting effect on the driving plate 30, under the action of the elastic force, the insertion rod 28 drives the disc 29 to reset, so that the driving rod 36 moves relatively to the connection between the second groove 33 and the first groove 32, at this time, the elastically reset insertion rod 28 is inserted into the inner cavity of the connecting rod 26 connected to the empty winding core 10, so as to install and fix the empty winding core 10, at this time, the disassembly of the full winding core 10 and the installation of the empty winding core 10 are completed, after the L-shaped block 19 and the vertical plate 13 move away from the position of the rotating plate 8, the rotating plate 8 is rotated by 180° again, the replacement of the full winding core 10 and the empty winding core 10 is completed again, so as to facilitate the continuous winding of the film, the preliminary replacement of the full winding core 10 and the empty winding core 10 is completed by rotating the rotating plate 8, the full winding core 10 is clamped by the adaptive groove 24 by moving the vertical plate 13 and the horizontal plate 14 in the horizontal direction and the vertical direction, how to drive the L-shaped block 19 to move upward to drive the driven rod 31 to push the disc 29 to move, complete the disassembly of the full winding core 10, and further replace and install the empty winding core 10, so as to facilitate the replacement of the winding core 10 in the next rotation of the rotating plate 8.
[0036] At this time, the L-shaped block 19 and the driven block 20 are driven to move downward by the third electric telescopic push rod, and the vertical plate 13 and the horizontal plate 14 are driven to move downward by the first and second electric telescopic push rods, and then move horizontally away from the position of the rotating plate 8, so that the vertical plate 13 and the horizontal plate 14 are away from the position of the empty winding core 10 and the rotating plate 8, and do not affect the rotation of the rotating plate 8. In the process of the L-shaped block 19 returning to the initial position, the lower end surface of the driven block 20 contacts the sleeve 15, and then does not move downward with the L-shaped block 19. The lower end surface of the L-shaped block 19 will press the elastic telescopic rod 18 again, thereby unblocking the sleeve 15, so that the empty winding core 10 in the inner cavity of the sleeve 15 can enter the inner cavity of the L-shaped block 19 again, and the L-shaped block 19 can drive the winding core 10 to move upward next time, thereby completing the replacement of the winding core 10. In the process of the L-shaped block 19 returning to the initial position, the driving rod 36 moves into the inner cavity of the fourth slot 35 along the first slot 32. After the L-shaped block 19 moves downward and the vertical plate 13 moves away from the rotating plate 8, the movable block 23 also returns to the original position under the action of the elastic force.
[0037] After the vertical plate 13 returns to the original position and drives the movable block 23 with the full winding core 10 to return to the original position in the horizontal direction, the upper end of the bottom plate 11 away from the side of the rotating plate 8 is fixedly connected with a support, the upper end of the support is fixedly connected with a transition rod 40, the side close to the vertical plate 13 of the transition rod 40 is fixedly connected with a discharging rod 41, and the discharging rod 41 and the transition rod 40 are both in an inclined state, and the inclined directions of the two are opposite. The plane where the lower end of the discharging rod 41 is located is lower than the plane where the lower end of the transition rod 40 is located. In the process of the vertical plate 13 returning to the original position in the horizontal direction, the connecting rod 26 gradually approaches the position where the discharging rod 41 is located. The outer wall of the connecting rod 26 is provided with an annular groove 27, and the annular groove 27 is located in the same vertical plane as the discharging rod 41. The width of the annular groove 27 is the same as the width of the transition rod 40 and the discharging rod 41. In the process of the connecting rod 26 approaching the discharging rod 41, the annular groove 27 contacts the outer wall of the discharging rod 41. Under the guidance of the discharging rod 41, the annular groove 27 is lifted and gradually separated from the inner cavity of the adaptive groove 24, until the annular groove 27 moves to the top end of the discharging rod 41. At this time, the connecting rod 26 is completely separated from the adaptive groove 24, and the full winding core 10 is separated from the movable block 23. Under the cooperation of the annular groove 27 and the transition rod 40, the full winding core 10 moves away from the position of the rotating plate 8 along the transition rod 40, thereby realizing automatic loading and unloading of the winding core without human intervention. The full winding core 10 is separated from the movable block 23, which facilitates the disassembly of the full winding core 10 next time. In the process of disassembling the winding core, the film does not come into contact with external objects, thereby ensuring that the film will not be damaged, and further ensuring the stability of the quality of the film.
Claims
1. An automatic film roll changing mechanism, comprising a symmetrical base, characterized in that, The upper side wall of the base is rotatably connected to symmetrical guide wheels. A rotating plate is attached above the symmetrical guide wheels. A mounting rod is fixedly connected between the symmetrical rotating plates. A mounting plate is fixedly connected to the upper end of one side of the base. A turbine shaft is rotatably connected to the middle of the upper end of the mounting plate. The output end of the turbine shaft is fixedly connected to the rotating plate near the mounting plate. A rotary reducer is driven through the outer wall of the turbine shaft. A speed reducer is driven through the upper end of the rotary reducer. A motor is driven through one side of the speed reducer.
2. The automatic film changing mechanism according to claim 1, characterized in that, Symmetrical cores are arranged between the symmetrical rotating plates, and symmetrical roll-changing guide rollers are driven between the symmetrical rotating plates. A drive unit for driving the core to rotate is driven to the side wall of the rotating plate. The film is wound by the rotation of the core. A disassembly and assembly mechanism for disassembling the core is provided on the side of the base away from the motor.
3. The automatic film changing mechanism according to claim 2, characterized in that, The disassembly and assembly mechanism includes a symmetrical base plate. A movable plate is slidably connected to the upper end of the base plate near the base. A horizontal plate is provided above the movable plate. A vertical plate is fixedly connected to the horizontal plate near the base. A movable block is slidably connected to the upper side of the vertical plate. An adapter groove is provided in the middle of the upper end of the movable block. Connecting rods are fixedly connected to both ends of the winding core. A plug-in rod is elastically connected to the middle of the drive unit near the output end. The end of the plug-in rod away from the drive unit is engaged in the middle of the inner cavity of the connecting rod.
4. The automatic film changing mechanism according to claim 3, characterized in that, A drive plate is slidably connected to the upper part of the vertical plate near the mounting plate. A driven rod is fixedly connected to the upper part of the drive plate near the rotating plate. The driven rod is located on the side of the vertical plate away from the movable block. A disc is fixedly connected to the outer wall of the plug rod. The driven rod is located between the disc and the connecting rod.
5. The automatic film changing mechanism according to claim 3, characterized in that, An L-shaped block is provided below the movable block. The L-shaped block is vertically slidably connected to the side of the vertical plate away from the plug rod. The side wall of the L-shaped block is in contact with the drive plate. The drive plate has a No. 4 slot on the side near the L-shaped block. A No. 3 slot is provided on the side of the No. 4 slot away from the vertical plate. A No. 1 slot is provided on the side of the No. 4 slot away from the No. 3 slot. A No. 2 slot is provided at the end of the No. 1 and No. 3 slots away from the No. 4 slot.
6. The automatic film changing mechanism according to claim 5, characterized in that, A drive rod is fixedly connected to the lower part of the L-shaped block near the drive plate. The drive rod is in sliding fit with slots 1, 2, 3 and 4. Symmetrical guide blocks are provided at the connection between slot 4 and slot 1. The two guide blocks are elastically connected to the inner side walls of slot 1 respectively. An inclined surface is opened at the upper end of the guide block.
7. The automatic film changing mechanism according to claim 5, characterized in that, A housing is provided on the side of the L-shaped block away from the drive plate. The side wall of the housing near the rotating plate is fixedly connected to the vertical plate. A through groove is provided on the side wall of the housing. A push plate is slidably connected to the inner cavity of the housing away from the L-shaped block. An extension plate is fixedly connected to the lower end of the housing near the L-shaped block. An elastic telescopic rod is fixedly connected to the upper end of the extension plate near the L-shaped block.
8. The automatic film changing mechanism according to claim 7, characterized in that, A driven block is fitted to the upper end of the casing near the L-shaped block. The lower end of the driven block is connected to the upper end of the casing via a multi-stage telescopic rod. A groove is provided on the lower end of the driven block near the L-shaped block, and the vertical height of the groove is the same as the vertical height of the L-shaped block near the casing.
9. The automatic film changing mechanism according to claim 8, characterized in that, The driven block has a first inclined surface on its upper end face, and the movable block has a second inclined surface on its lower end face, with the second inclined surface and the first inclined surface fitting together.
10. The automatic film changing mechanism according to claim 3, characterized in that, A bracket is fixedly connected to the upper end of the base plate away from the rotating plate. A transition rod is fixedly connected to the upper end of the bracket. A feeding rod is fixedly connected to the side of the transition rod near the vertical plate. The plane of the lower end of the feeding rod is lower than the plane of the lower end of the transition rod. An annular groove is formed on the outer wall of the connecting rod. The annular groove and the feeding rod are located in the same vertical plane. The width of the annular groove is the same as the width of the transition rod and the feeding rod.