A film unwinding device

Abstract

A film uncoiling device includes a horizontally movable frame, a moving arm vertically movably arranged on the frame, and a flipping support assembly horizontally movably arranged on the moving arm; when the film uncoiling device works, the moving arm drives the flipping support assembly to move up and down, so that the flipping support assembly supports the workpiece located on the winding device or the blanking rack, the frame drives the moving arm to move to a position close to the winding device or the blanking rack, and the flipping support assembly moves to one end or the other end of the moving arm to load or unload the workpiece; when unloading the workpiece, the flipping support assembly unloads the workpiece onto the blanking rack by flipping. The film uncoiling device of the present invention can automatically lift and transport the empty shaft and the winding shaft, thereby realizing the automatic loading of the empty shaft and the automatic unloading of the winding shaft, no longer requiring manual lifting and transporting of the empty shaft and the winding shaft, greatly improving the loading and unloading efficiency, and moreover, the problem of film damage caused by manual operation can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of film production, and particularly relates to a film uncoiling device. Background Art

[0002] The winding work of the cast film is generally carried out by a winding machine. For example, Chinese Patent Document No. CN104118753A discloses a cast film winding machine on October 29, 2014, which includes a winding machine frame. A disc is provided on the winding machine frame, a winding main shaft is provided on the disc, the winding main shaft is connected to a winding core, and the winding main shaft is driven and controlled by a servo motor through a transmission device. Before the cast film is wound, it is necessary to load the winding core (i.e., the empty shaft). After the cast film is wound, it is necessary to unload the winding core (i.e., the winding shaft) with the film wound on it. The loading is generally carried out by manually lifting and transporting the winding core to the winding machine for installation. The unloading is generally carried out by manually lifting and transporting the winding core with the film wound on it to the unloading rack. Manually lifting and transporting is time-consuming and laborious, with low production efficiency and high labor costs. Moreover, the film is easily damaged during the lifting and transporting process. In addition, some manufacturers use a crane to lift and transport the winding core, but the crane has a complex structure, large volume, high cost, and general handling efficiency.

[0003] Therefore, it is necessary to make further improvements. Summary of the Invention

[0004] The purpose of the present invention is to provide a film uncoiling device with a simple structure, high production efficiency, low cost, and strong practicability to overcome the deficiencies in the prior art.

[0005] A film uncoiling device designed according to this purpose is characterized in that it includes a horizontally movable frame, a movable arm movably arranged up and down on the frame, and a flipping support assembly movably arranged horizontally on the movable arm. The winding device is located at one end of the movable arm, and the unloading rack is located at the other end of the movable arm.

[0006] When the film uncoiling device works, the movable arm drives the flipping support assembly to move up and down so that the flipping support assembly supports the workpiece located on the winding device or the unloading rack. The frame drives the movable arm to move to a position close to the winding device or the unloading rack, and the flipping support assembly moves to one end or the other end of the movable arm to load or unload the workpiece.

[0007] When unloading the workpiece, the flipping support assembly unloads the workpiece onto the unloading rack by flipping.

[0008] It further includes a chassis, on which a first driver and a lead screw assembly are provided. The first driver is drivingly connected to the lead screw assembly, and the frame is cooperatively connected to the lead screw assembly. The first driver drives the frame to move horizontally on the chassis through the lead screw assembly.

[0009] A first linear guide assembly is provided on the base frame, which is connected to the frame. The frame is horizontally movable on the base frame through the first linear guide assembly. Limit blocks are respectively provided at both ends of the base frame. When the frame moves horizontally on the base frame, the limiting action is on the limit blocks.

[0010] A lifting mechanism is provided on the frame, which includes a second driver, a first transmission shaft, a steering gear, a second transmission shaft, a lifting reversing device, a screw assembly and a lifting arm assembly. The second driver is connected to the steering gear through the first transmission shaft, the steering gear is connected to the lifting reversing device through the second transmission shaft, the screw assembly is cooperatively connected to the lifting reversing device, the lifting arm assembly is movably arranged on the screw assembly, and the moving arm is cooperatively connected to the lifting arm assembly.

[0011] A second linear guide assembly is provided on the frame, the second linear guide assembly is cooperatively connected with the lifting arm assembly, and the lifting arm assembly is movably arranged on the frame up and down through the second linear guide assembly.

[0012] The movable arm is provided with a third driver and a sprocket chain assembly. The third driver drives the connected sprocket chain assembly. The flip support assembly is provided on the sprocket chain assembly.

[0013] A third linear guide assembly is provided on the movable arm, and the third linear guide assembly is cooperatively connected with the flip support assembly. The flip support assembly is horizontally movably provided on the movable arm through the third linear guide assembly.

[0014] The flip support assembly includes a flip seat, a fourth driver and a flip arm. The flip seat is arranged on the sprocket chain assembly and is connected to the third linear guide assembly. The fourth driver is arranged on the flip seat. The fourth driver drives the flip arm. The flip arm is provided with a supporting part for supporting the workpiece.

[0015] A limiting piece is provided on the turning seat, and the limiting action is on the limiting piece when the turning arm turns over.

[0016] The winding device includes a turntable and a clamping assembly arranged on the turntable. The turntable is provided with a loading station and a winding station. When the frame drives the movable arm to move to a position close to the winding device and the flip support assembly moves to one end of the movable arm, the flip support assembly is located at the loading station, and the clamping assembly clamps the workpiece on the flip support assembly to load the workpiece.

[0017] The film uncoiling device of the present invention can automatically lift and transport the empty shaft and the winding shaft, and automatically turn over and unload the winding shaft, so as to realize the automatic feeding of the empty shaft and the automatic discharging of the winding shaft. There is no need to manually lift and transport the empty shaft and the winding shaft, which greatly improves the feeding and discharging efficiency, reduces the labor cost, and can avoid the problem of film damage caused by manual operation. In addition, this film uncoiling device is only composed of four major parts: a frame, a moving arm, a turning and supporting component, and a chassis. It has a simple structure, a small volume, and a low cost. While the frame moves horizontally, the turning and supporting component moves horizontally on the moving arm, which can improve the handling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. is a schematic diagram of the overall structure of the film uncoiling device in an embodiment of the present invention.

[0019] Figure 2 FIG. is a schematic diagram of the overall structure of the film uncoiling device in another orientation in an embodiment of the present invention.

[0020] Figure 3 is Figure 1 an enlarged schematic diagram of part A in FIG.

[0021] Figure 4 FIG. is a distribution diagram of the film uncoiling device, the winding device and the blanking rack in an embodiment of the present invention.

[0022] Figure 5 FIG. is a distribution diagram of the film uncoiling device, the winding device and the blanking rack in another orientation in an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The present invention will be further described below with reference to the drawings and embodiments.

[0024] Referring to Figures 1 - 5 , this film uncoiling device includes a frame 1 that is horizontally movably arranged, a moving arm 2 that is vertically movably arranged on the frame 1, and a turning and supporting component 3 that is horizontally movably arranged on the moving arm 2. The winding device 4 is located at one end of the moving arm 2, and the blanking rack 5 is located at the other end of the moving arm 2;

[0025] When the film uncoiling device works, the moving arm 2 drives the turning and supporting component 3 to move up and down, so that the turning and supporting component 3 supports the workpiece located on the winding device 4 or the blanking rack 5. The frame 1 drives the moving arm 2 to move to a position close to the winding device 4 or the blanking rack 5, and the turning and supporting component 3 moves to one end or the other end of the moving arm 2 to load or unload the workpiece;

[0026] When unloading the workpiece, the turning and supporting component 3 unloads the workpiece onto the blanking rack 5 by turning over.

[0027] Specifically, the workpieces are the empty shaft (without film) 29 and the winding shaft (with film) 30, and the film is a cast film; when the film unwinding device works, the moving arm 2 drives the flipping and supporting assembly 3 to move downward, the frame 1 drives the moving arm 2 to move to a position close to the blanking rack 5, and at the same time the flipping and supporting assembly 3 moves to the other end of the moving arm 2, then the moving arm 2 drives the flipping and supporting assembly 3 to move upward to lift the empty shaft 29 at the bottom of the blanking rack 5, the frame 1 drives the moving arm 2 to move to a position close to the winding device 4, and at the same time the flipping and supporting assembly 3 moves to one end of the moving arm 2 to load the empty shaft 29 onto the winding device 4, the winding device 4 winds the empty shaft 29 to form the winding shaft 30, the flipping and supporting assembly 3 moves upward to lift the winding shaft 30, then the frame 1 drives the moving arm 2 to move to a position close to the blanking rack 5, and at the same time the flipping and supporting assembly 3 moves to the other end of the moving arm 2, and then the flipping and supporting assembly 3 unloads the winding shaft 30 onto the blanking rack 5 by flipping (the blanking rack 5 is provided with upper and lower two layers, and by driving the flipping and supporting assembly 3 to move up and down by the moving arm 2, the flipping and supporting assembly 3 can unload the winding shaft 30 onto the upper or lower layer of the blanking rack 5), after that the flipping and supporting assembly 3 flips back to the original position, and then the above process is repeated to perform the loading or unloading of the next workpiece.

[0028] It further includes a chassis 6, on which a first driver and a lead screw assembly 7 are provided, the first driver is drivingly connected to the lead screw assembly 7, the frame 1 is cooperatively connected with the lead screw assembly 7, the first driver drives the frame 1 to move horizontally on the chassis 6 through the lead screw assembly 7, the lead screw assembly 7 includes a ball screw 31 and a lead screw nut 32, the first driver is a motor (not shown in the figure), the motor is drivingly connected to the ball screw 31, the lead screw nut 32 is movably arranged on the ball screw 31, and the bottom of the frame 1 is cooperatively connected with the lead screw nut 32 through a lead screw fixing seat; the winding device 4 is located at one end of the chassis 6, and the blanking rack 5 is located at the other end of the chassis 6; the frame 1 reciprocates back and forth between the two ends of the chassis 6.

[0029] A first linear guiding assembly 8 is provided on the chassis 6, the first linear guiding assembly 8 is cooperatively connected with the frame 1, and the frame 1 is horizontally movably arranged on the chassis 6 through the first linear guiding assembly 8, the first linear guiding assembly 8 is a combination of a slide rail and a slider; limit blocks 9 are respectively arranged at both ends of the chassis 6, and when the frame 1 moves horizontally on the chassis 6, the limiting effect acts on the limit blocks 9, and the limit blocks 9 can prevent the frame 1 from sliding out of the chassis 6.

[0030] A lifting mechanism is provided on the frame 1. The lifting mechanism includes a second driver 10, a first transmission shaft 11, a steering gear 12, a second transmission shaft 13, a lifting reversing device 14, a screw assembly 15 and a lifting arm assembly 16. The second driver 10 is drivingly connected to the steering gear 12 through the first transmission shaft 11. The steering gear 12 is drivingly connected to the lifting reversing device 14 through the second transmission shaft 13. The screw assembly 15 is cooperatively connected with the lifting reversing device 14. The lifting arm assembly 16 is vertically movably arranged on the screw assembly 15. The moving arm 2 is cooperatively connected with the lifting arm assembly 16. The second driver 10 is a combination of a motor and a speed reducer. The screw assembly 15 includes a screw 33 and a movable nut 34. The screw 33 is cooperatively connected with the lifting reversing device 14. The movable nut 34 is movably arranged on the screw 33. The lifting arm assembly 16 is cooperatively connected with the movable nut 34. The second driver 10 drives the screw 33 to rotate successively through the first transmission shaft 11, the steering gear 12, the second transmission shaft 13 and the lifting reversing device 14. When the screw 33 rotates, it drives the movable nut 34 to move up and down on the screw 33. The movable nut 34 drives the lifting arm assembly 16 to move up and down, thereby driving the moving arm 2 to move up and down.

[0031] A second linear guiding assembly 17 is provided on the frame 1. The second linear guiding assembly 17 is cooperatively connected with the lifting arm assembly 16. The lifting arm assembly 16 is vertically movably arranged on the frame 1 through the second linear guiding assembly 17. The second linear guiding assembly 17 is a combination of a slide rail and a slider.

[0032] A third driver 18 and a sprocket and chain assembly 19 are provided on the moving arm 2. The third driver 18 is drivingly connected to the sprocket and chain assembly 19. The flipping and supporting assembly 3 is arranged on the sprocket and chain assembly 19. The third driver 18 is a combination of a servo motor and a planetary speed reducer. The sprocket and chain assembly 19 includes a sprocket 35 and a chain 36. The third driver 18 is drivingly connected to the driving wheel of the sprocket 35. The chain 36 is arranged between the driving wheel and the driven wheel of the sprocket 35. The flipping and supporting assembly 3 is arranged on the chain 36. The third driver 18 drives the driving wheel of the sprocket 35 to rotate, so that the chain 36 moves between the driving wheel and the driven wheel of the sprocket 35, thereby driving the flipping and supporting assembly 3 to move horizontally.

[0033] A third linear guiding assembly 20 is provided on the moving arm 2. The third linear guiding assembly 20 is cooperatively connected with the flipping and supporting assembly 3. The flipping and supporting assembly 3 is horizontally movably arranged on the moving arm 2 through the third linear guiding assembly 20. The third linear guiding assembly 20 is a combination of a slide rail and a slider.

[0034] The flipping and supporting assembly 3 includes a flipping base 21, a fourth driver 22 and a flipping arm 23. The flipping base 21 is installed on the chain 36 through a fixing block 37 and is cooperatively connected with the third linear guiding assembly 20. The fourth driver 22 is arranged on the flipping base 21. The fourth driver 22 is drivingly connected to the flipping arm 23. A supporting portion 23.1 for supporting the workpiece is arranged on the flipping arm 23. The fourth driver 22 is a rotary cylinder. The rotary cylinder drives the flipping arm 23 to flip. When the flipping arm 23 flips, the workpiece is unloaded onto the blanking rack 5.

[0035] A limiting member 24 is arranged on the flipping base 21. When the flipping arm 23 flips, it is limited by the limiting member 24.

[0036] The winding device 4 includes a turntable 25 and a clamping assembly 26 arranged on the turntable 25. An unloading station 27 and a winding station 28 are arranged on the turntable 25. When the frame 1 drives the moving arm 2 to move to a position close to the winding device 4 and the flipping and supporting assembly 3 moves to one end of the moving arm 2, the flipping and supporting assembly 3 is located at the unloading station 27. The clamping assembly 26 clamps the workpiece on the flipping and supporting assembly 3 to load the workpiece. Specifically, the clamping assembly 26 is a clamping cylinder assembly. When the flipping and supporting assembly 3 moves the empty shaft 29 to the unloading station 27, the clamping assembly 26 respectively abuts against the shaft holes at both ends of the empty shaft 29, thereby clamping the empty shaft 29. After the empty shaft 29 is clamped, the turntable 25 rotates to move the empty shaft 29 to the winding station 28 (at this time, the winding shaft 30 moves from the winding station 28 to the unloading station 27 to realize the station conversion). Then, the empty shaft 29 is wound by the winding assembly 38. The film is wound around the empty shaft 29 one by one to form the winding shaft 30. After the winding is completed, the turntable 25 rotates to move the winding shaft 30 to the unloading station 27 (at this time, the empty shaft 29 moves from the unloading station 27 to the winding station 28 to realize the station conversion). Then, the flipping and supporting assembly 3 lifts the winding shaft 30, and the clamping assembly 26 releases the winding shaft 30. After that, the winding shaft 30 can be unloaded. Two stations, namely the unloading station 27 and the winding station 28, are arranged on the turntable 25. While one workpiece is being loaded or unloaded, the other workpiece is being wound, improving the production efficiency.

[0037] The above is the preferred solution of the present invention, showing and describing the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A film uncoiling device, characterized in that: It includes a frame (1) with a horizontal movement setting, a moving arm (2) vertically movably arranged on the frame (1), and a flipping support assembly (3) horizontally movably arranged on the moving arm (2). A winding device (4) is located at one end of the moving arm (2), and a blanking rack (5) is located at the other end of the moving arm (2); When the film unwinding device works, the moving arm (2) drives the flipping support assembly (3) to move up and down, so that the flipping support assembly (3) supports the workpiece located on the winding device (4) or the blanking rack (5). The frame (1) drives the moving arm (2) to move to a position close to the winding device (4) or the blanking rack (5), and the flipping support assembly (3) moves to one end or the other end of the moving arm (2) to load or unload the workpiece; When unloading the workpiece, the flipping support assembly (3) unloads the workpiece onto the blanking rack (5) by flipping. It further includes a chassis (6). A first driver and a lead screw assembly (7) are arranged on the chassis (6). The first driver is drivingly connected to the lead screw assembly (7). The frame (1) is cooperatively connected with the lead screw assembly (7). The first driver drives the frame (1) to horizontally move on the chassis (6) through the lead screw assembly (7). The winding device (4) includes a turntable (25) and a clamping assembly (26) arranged on the turntable (25). A loading station (27) and a winding station (28) are arranged on the turntable (25). When the frame (1) drives the moving arm (2) to move to a position close to the winding device (4) and the flipping support assembly (3) moves to one end of the moving arm (2), the flipping support assembly (3) is located on the loading station (27), and the clamping assembly (26) clamps the workpiece on the flipping support assembly (3) to load the workpiece.

2. The film unwinding device according to claim 1, wherein: A first linear guiding assembly (8) is arranged on the chassis (6). The first linear guiding assembly (8) is cooperatively connected with the frame (1). The frame (1) is horizontally movably arranged on the chassis (6) through the first linear guiding assembly (8). Limit blocks (9) are respectively arranged at both ends of the chassis (6). When the frame (1) horizontally moves on the chassis (6), it is limited by the limit blocks (9).

3. The film unrolling device according to claim 1, wherein: A lifting mechanism is arranged on the frame (1). The lifting mechanism includes a second driver (10), a first transmission shaft (11), a steering gear (12), a second transmission shaft (13), a lifting reversing device (14), a screw rod assembly (15) and a lifting arm assembly (16). The second driver (10) is drivingly connected to the steering gear (12) through the first transmission shaft (11). The steering gear (12) is drivingly connected to the lifting reversing device (14) through the second transmission shaft (13). The screw rod assembly (15) is cooperatively connected with the lifting reversing device (14). The lifting arm assembly (16) is vertically movably arranged on the screw rod assembly (15). The moving arm (2) is cooperatively connected with the lifting arm assembly (16).

4. The film unrolling device according to claim 3, wherein: A second linear guiding assembly (17) is arranged on the frame (1). The second linear guiding assembly (17) is cooperatively connected with the lifting arm assembly (16). The lifting arm assembly (16) is vertically movably arranged on the frame (1) through the second linear guiding assembly (17).

5. The film unwinding device according to claim 1, characterized in that: A third driver (18) and a sprocket chain assembly (19) are provided on the moving arm (2). The third driver (18) is drivingly connected to the sprocket chain assembly (19), and the flipping and supporting assembly (3) is provided on the sprocket chain assembly (19).

6. The film unwinding device according to claim 5, characterized in that: A third linear guiding assembly (20) is provided on the moving arm (2). The third linear guiding assembly (20) is cooperatively connected with the flipping and supporting assembly (3), and the flipping and supporting assembly (3) is horizontally movably arranged on the moving arm (2) through the third linear guiding assembly (20).

7. The film uncoiling device according to claim 6, characterized in that: The flipping and supporting assembly (3) includes a flipping base (21), a fourth driver (22) and a flipping arm (23). The flipping base (21) is provided on the sprocket chain assembly (19) and is cooperatively connected with the third linear guiding assembly (20). The fourth driver (22) is provided on the flipping base (21). The fourth driver (22) is drivingly connected to the flipping arm (23). A supporting portion (23.1) for supporting a workpiece is provided on the flipping arm (23).

8. The film unwinding device according to claim 7, characterized in that: A limiting member (24) is provided on the flipping base (21). When the flipping arm (23) flips, the limiting effect acts on the limiting member (24).

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