A lifting device for storing slit film rolls of plastic film

Abstract

The application relates to the technical field of automatic warehouse storage, and discloses a lifting device for storing plastic film slit film rolls, which comprises a machine base, a liftable lifting frame arranged on the machine base, a lifting plate fixed on the lifting frame, a base fixed on the lifting plate, a V-shaped groove arranged on the base, a feeding assembly arranged on the base, and a pressing assembly arranged above the base. The application can realize automatic feeding, stable clamping and safe lifting of the slit film rolls, solve the problems of low manual carrying efficiency, easy bumping and easy sliding, greatly improve the storage and transfer efficiency and safety, automatically center the V-shaped base, cooperate with the self-adaptive double-pressing-wheel elastic pressing, do not damage the film roll and firmly clamp the film roll, can adapt to film rolls with different diameters, the feeding assembly is lifted through the inner support type supporting rod, is accurate in positioning, is stable in operation, and deformation of the film roll is avoided.

Description

Technical Field

[0001] This invention relates to the field of automated warehouse storage technology, and in particular to a lifting device for storing plastic film slitting rolls. Background Technology

[0002] The lifting device for storing plastic film slitting rolls belongs to the field of film processing, warehousing and conveying technology. It is an automated three-dimensional warehouse, a special auxiliary lifting device for vertical lifting, station transfer, warehousing and stacking of slitting film rolls, and loading and unloading turnover. It can realize the smooth lifting and fixed-point transfer of heavy and large-size film rolls, and is suitable for the orderly storage, transfer and stacking of finished film rolls after film slitting.

[0003] Existing plastic film slitting and film roll lifting devices lack a dedicated limiting and fixing structure when lifting and transferring film rolls. The film rolls are simply supported by the placement surface, making them susceptible to displacement, rolling, or even slippage during the lifting process due to equipment vibration, start-stop inertia, and transfer swaying. This not only easily causes film roll damage, edge deformation, and loosening of the film, resulting in material loss and increased production costs, but also leads to equipment jamming. Furthermore, accidental film roll drops pose on-site safety hazards and threaten the personal safety of operators.

[0004] Therefore, it is necessary to design a lifting device for storing plastic film slitting rolls to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a lifting device for storing plastic film slitting rolls.

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

[0007] A lifting device for storing plastic film slitting rolls includes a base, a liftable lifting frame on the base, a lifting plate fixed on the lifting frame, a base fixed on the lifting plate, a V-shaped groove on the base, a feeding component on the base, and a pressing component above the base.

[0008] As a preferred embodiment of the present invention, the feeding assembly includes two driving structures, a moving plate, and a moving rod. The two driving structures are respectively disposed on both sides of the base. Each driving structure includes two guide rails, both of which are fixed to the side of the base. A slide block is slidably disposed on each guide rail. A linear module is mounted on both slide blocks. A linear moving seat is disposed on the linear module. A connecting rod is fixed to the side of the linear moving seat. The ends of the two connecting rods away from the corresponding linear moving seats are connected to the moving plate. The moving rod is fixed on the moving plate. The feeding assembly also includes a first cylinder, which is mounted on a lifting frame. The first cylinder is connected to one of the linear modules through a connecting plate.

[0009] As a preferred embodiment of the present invention, the clamping assembly includes a slide rail, which is fixed to a lifting plate. A lifting seat is slidably disposed on the slide rail. The slide rail is arranged in a vertical direction. A pressure plate is fixed to the side of the lifting seat. A clamping structure is disposed on the bottom surface of the pressure plate. The clamping assembly also includes a second cylinder, which is installed on the side of the slide rail. The telescopic end of the second cylinder is connected to the lifting seat.

[0010] As a preferred embodiment of the present invention, the pressing structure includes two fixed frames, which are respectively fixed to both ends of the pressure plate. Each fixed frame has two movable seats slidably arranged on it. Each movable seat is connected to the pressure plate by a tension spring. Each movable seat has a side plate fixed on it. The four side plates are arranged in pairs facing each other, and a pressure roller is rotatably installed between the two pairs of facing side plates.

[0011] As a preferred embodiment of the present invention, the two pressure rollers are arranged in a mirror-symmetrical manner, and both pressure rollers are located directly above the base.

[0012] As a preferred embodiment of the present invention, each of the fixed frames is fixed with four limiting blocks, the four limiting blocks are in pairs, and the two sets of limiting blocks act on the two movable seats respectively.

[0013] As a preferred embodiment of the present invention, a rotating shaft is rotatably mounted on the base, a baffle is fixed to one end of the rotating shaft, a gear is fixed to the other end of the rotating shaft, a vertical rod is fixed to the side of the pressure plate, and a rack is fixed to the end of the vertical rod away from the pressure plate, with the rack facing the gear.

[0014] As a preferred embodiment of the present invention, in the initial state, the baffle is in a horizontal state and the baffle is offset from the V-shaped groove of the base.

[0015] The present invention has the following beneficial effects:

[0016] This device enables automatic feeding, stable clamping, and safe lifting of slit film rolls, solving the problems of low efficiency, easy bumping, and slippage during manual handling. It significantly improves storage and transfer efficiency and safety. It features a V-shaped base for automatic centering, coupled with adaptive double pressure rollers for elastic clamping, ensuring secure clamping without damaging the film rolls. It can accommodate film rolls of different diameters. The feeding component uses a moving rod for internal support, ensuring precise positioning and smooth operation, preventing film roll deformation. The clamping and baffles are automatically linked by a gear and rack system, requiring no additional power to achieve double end limiting, preventing slippage and detachment during lifting. The overall structure is stable, highly automated, and easy to maintain, significantly reducing labor intensity and improving production line continuity and product integrity. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a lifting device for storing plastic film slitting rolls proposed in this invention;

[0018] Figure 2 Schematic diagram of the base and clamping assembly Figure 1 ;

[0019] Figure 3 Schematic diagram of the base and clamping assembly Figure 2 ;

[0020] Figure 4 This is a schematic diagram of the clamping assembly.

[0021] Figure 5 This is a schematic diagram of the clamping structure;

[0022] Figure 6 This is a cross-sectional view of the base.

[0023] Figure 7 This is a schematic diagram of the structure when the slit film is rolled onto the base.

[0024] In the diagram: 1. Base; 2. Lifting frame; 21. Lifting plate; 3. Base; 41. Guide rail; 42. Slide seat; 43. Linear module; 44. Linear moving seat; 45. Connecting rod; 46. Moving plate; 47. Moving rod; 48. First cylinder; 49. Connecting plate; 51. Slide rail; 52. Lifting seat; 53. Pressure plate; 54. Fixed frame; 541. Limit block; 55. Movable seat; 551. Tension spring; 56. Side plate; 57. Pressure roller; 58. Second cylinder; 61. Rotating shaft; 62. Baffle; 63. Gear; 64. Vertical rod; 65. Rack. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0026] Example 1: This example discloses a lifting device for storing plastic film slitting rolls. Referring to Figures 1-5, it includes a base 1, on which a liftable lifting frame 2 is provided. A lifting plate 21 is fixed on the lifting frame 2, and the lifting plate 21 moves up and down synchronously with the lifting frame 2. A base 3 is fixed on the lifting plate 21, and a V-shaped groove is provided on the base 3. The V-shaped groove is adapted to the cylindrical shape of the slitting film roll for stable placement of the slitting film roll, which can automatically center and prevent rolling. It is suitable for placing film rolls of different diameters. A feeding assembly is provided on the base 3. The feeding assembly includes two drive structures, a moving plate 46, and a moving rod 47. The two drive structures are symmetrically arranged on both sides of the base 3 to ensure balanced force and synchronous movement.

[0027] The drive structure includes two guide rails 41, each with a sliding block 42 slidably mounted on it. A linear module 43 is mounted on both sliding blocks 42. The linear module 43 uses a servo electric cylinder, synchronous belt module, or ball screw module, ensuring high operating precision, smooth movement, and accurate positioning. A linear moving seat 44 is mounted on the linear module 43, driving it to move horizontally in a straight line. A connecting rod 45 is fixed to the side of the linear moving seat 44. The ends of both connecting rods 45 away from their corresponding linear moving seats 44 are connected to a moving plate 46. A moving rod 47 is fixed to the moving plate 46. The moving rod 47 is made of smooth round steel with rust-proof and wear-resistant treatment. The length of the moving rod 47 is adapted to the length of the base 3, which can cover slit film rolls of different widths and ensure uniform force during lifting. The feeding assembly also includes a first cylinder 48, which is mounted on the lifting frame 2. The first cylinder 48 is connected to one of the linear modules 43 through a connecting plate 49. When the extension end of the first cylinder 48 is running, it can drive the linear module 43 to move up and down as a whole through the connecting rod 45, thereby enabling the two connecting rods 45 to synchronously drive the moving plate 46 and the moving rod 47 to move up and down, realizing the lifting action of the moving rod 47.

[0028] During feeding, the two linear modules 43 first operate synchronously, driving the two linear moving seats 44 to move synchronously in the horizontal direction. When the two linear moving seats 44 move, they can drive the moving plate 46 to move smoothly through the two connecting rods 45, thereby causing the moving rod 47 to move horizontally until the moving rod 47 is accurately inserted into the internal paper tube of the slitting film roll, with accurate positioning, no deviation, and no bumping of the side of the film roll. Then, the first cylinder 48 operates, driving the corresponding linear module 43 to move upward through the connecting plate 49, which in turn causes the two connecting rods 45 to drive the moving plate 46 and the moving rod 47 to move upward until the moving rod 47 cuts the film roll. The film roll is smoothly lifted, allowing it to detach from the ground or conveyor rollers. It should be noted that during the lifting and moving process of the linear module 43, the guide rail 41 and slide 42 provide reliable guidance and limit, ensuring that the linear module 43 does not tilt or sway during movement, thus improving operational stability and safety. Subsequently, the two linear modules 43 synchronously control the moving rod 47 to return to its horizontal position. When the moving rod 47 returns to its position, it can smoothly drive the slitting film roll to move synchronously until the slitting film roll is accurately moved directly above the base 3 with high alignment accuracy. Finally, the first cylinder 48 returns to its position, causing the moving rod 47 to slowly move downward until the slitting film roll lands smoothly on the V-shaped groove of the base 3, completing the automatic feeding process. The entire process requires no manual contact with the film roll, making it efficient, safe, and without damaging the product.

[0029] A clamping assembly is provided above the base 3. The clamping assembly is used to reliably clamp and fix the slit film roll placed on the V-groove, preventing the film roll from jumping, shifting, slipping or rolling during lifting and transportation, and ensuring the safety of lifting operations. The clamping assembly includes a slide rail 51, on which a lifting seat 52 is slidably arranged. A pressure plate 53 is fixed to the side of the lifting seat 52. The pressure plate 53 rises and falls synchronously with the lifting seat 52. A clamping structure is provided on the bottom surface of the pressure plate 53. The clamping structure includes two fixed frames 54. The two fixed frames 54 are respectively fixed to the two ends of the pressure plate 53 by bolts. They are symmetrically distributed and have balanced force. Two movable seats 55 are slidably arranged on each fixed frame 54. The movable seats 55 can slide horizontally along the fixed frame 54 and move flexibly. Each movable seat 55 is connected to the pressure plate 53 by a tension spring 551. Under the action of the tension spring 551, the two movable seats 55 located on the same fixed frame 54 tend to move closer to each other, which can achieve self-adaptive clamping.

[0030] Each of the movable seats 55 is fixed with a side plate 56. The four side plates 56 are arranged in pairs facing each other. A pressure roller 57 is rotatably installed between each pair of opposing side plates 56. The pressure roller 57 is a rubber-coated roller or a soft nylon roller with a soft surface and moderate friction. It can press the film roll tightly without damaging the end face of the film roll and the surface of the film. The two pressure rollers 57 are arranged in a mirror symmetrical manner and are located directly above the base 3. They can press the arc surface of the film roll simultaneously from both sides, resulting in good centering effect. Each of the fixed frames 54 is fixed with four limiting blocks 541. The four limiting blocks 541 are arranged in pairs. The two sets of limiting blocks 541 act on the two movable seats 55 respectively, providing a limit for the movement of the movable seats 55, preventing the movable seats 55 from sliding overtravel, derailing, or the tension spring 551 from being overloaded, thereby improving the service life of the structure.

[0031] The pressing assembly also includes a second cylinder 58, which is mounted on the side of the slide rail 51. The telescopic end of the second cylinder 58 is connected to the lifting seat 52. When the second cylinder 58 operates, it controls the lifting seat 52 to move up and down along the slide rail 51, thereby controlling the pressure plate 53 and the pressing structure to move up and down as a whole. After the slit film roll is moved onto the base 3, the second cylinder 58 operates, controlling the lifting seat 52 to move smoothly downward. When the lifting seat 52 moves downward, it can drive the pressure plate 53 to move downward synchronously, thereby causing the two pressure rollers 57 to move downward synchronously. During the downward movement, the two pressure rollers 57 will first contact the surface of the slit film roll and gradually press down on the slit film roll. Under the obstruction of the slitting film roll, the two pressure rollers 57 will overcome the tension of the tension spring 551 and move away from each other, and drive the corresponding movable seat 55 to slide along the fixed frame 54, so that the movable seat 55 stretches the tension spring 551. When the two pressure rollers 57 press the slitting film roll with appropriate pressure, the second cylinder 58 stops running and remains locked. In this case, the two pressure rollers 57 always maintain an adaptive pressing force on the film roll under the action of the tension spring 551, which can play a stable pressing and fixing role on the slitting film roll, preventing the slitting film roll from slipping, rolling or deviating from the base 3, ensuring the stability and safety of the slitting film roll during the lifting process, and preventing damage to the film roll.

[0032] Example 2: Based on Example 1, this example discloses a lifting device for storing plastic film slitting rolls. Referring to Figures 6-7, to further improve the positioning reliability of the film rolls during lifting and transfer, and to prevent the film rolls from axially shifting or sliding out of the V-groove, this example adds a mechanical linkage end-limiting structure to the base 3. The lifting and lowering motion of the pressing component synchronously drives the baffle 62 to flip, achieving automatic linkage limiting without independent power. The structure is simple, highly reliable, and has a low failure rate. A rotating shaft 61 is rotatably mounted on the base 3. The rotating shaft 61 rotates smoothly without jamming. A baffle 62 is fixed to one end of the rotating shaft 61. The size of the baffle 62 matches the opening of the V-groove of the base 3, which can achieve blocking. A gear 63 is fixed to the other end of the rotating shaft 61. A vertical rod 64 is fixed to the side of the pressure plate 53. A rack 65 is fixed to the end of the vertical rod 64 away from the pressure plate 53. The rack 65 is set opposite to the gear 63 and can precisely mesh with the gear 63 for transmission. In the initial state, as shown in Figure 2... As shown, the baffle 62 is in a horizontal state. At this time, the baffle 62 will not block the V-shaped groove of the base 3, and will not affect the smooth falling of the slit film roll into the V-shaped groove. The feeding is smooth. During the process of the pressure plate 53 moving downward to perform the pressing action, the pressure plate 53 can drive the rack 65 to move downward synchronously through the vertical rod 64. When the rack 65 moves downward, it will accurately mesh with the gear 63 and drive the gear 63 to rotate smoothly. When the gear 63 rotates, it can drive the rotating shaft 61 to rotate synchronously, thereby causing the rotating shaft 61 to drive the baffle 62 to flip.

[0033] When the baffle 62 rotates to the vertical position, it stands upright at the end of the V-groove, providing reliable limiting and blocking for the end face of the slitting film roll. This prevents the slitting film roll from axially shifting, deviating, or even falling off during lifting, acceleration, deceleration, or turning transportation. The baffle 62 rotates accurately to the position directly opposite the V-groove opening, forming a stable limiting state as shown in Figure 7. In this state, the baffle 62, in conjunction with the V-groove and pressure roller 57, provides three-dimensional constraint from the bottom, sides, and ends, further preventing the slitting film roll from falling off or being thrown out of the base 3. This significantly improves the stability of the slitting film roll on the base 3 and the safety of lifting. When the film roll needs to be unloaded after being lifted to the desired position, the pressure plate 53 resets upwards, and the rack 65 moves upwards and drives the gear 63 to rotate in the opposite direction, causing the baffle 62 to reset to the horizontal position and releasing the limiting. This does not affect the unloading operation. The entire process is automatic, requiring no manual operation, no additional motors or sensors, and features a simple structure and stable operation.

[0034] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A lifting device for storing plastic film slitting rolls, characterized in that, Includes a base (1), on which a liftable lifting frame (2) is provided, on which a lifting plate (21) is fixed, on which a base (3) is fixed, on which a V-shaped groove is provided, on which a feeding component is provided, and on which a pressing component is provided above the base (3).

2. The lifting device for storing plastic film slitting rolls according to claim 1, characterized in that, The feeding assembly includes two drive structures, a moving plate (46), and a moving rod (47). The two drive structures are respectively set on both sides of the base (3). The drive structure includes two guide rails (41). The two guide rails (41) are fixed on the side of the base (3). Each guide rail (41) is slidably provided with a slide seat (42). The two slide seats (42) are jointly installed with a linear module (43). The linear module (43) is provided with a linear moving seat (44). The side of the linear moving seat (44) is fixed with a connecting rod (45). The ends of the two connecting rods (45) away from the corresponding linear moving seat (44) are connected to the moving plate (46). The moving rod (47) is fixed on the moving plate (46). The feeding assembly also includes a first cylinder (48). The first cylinder (48) is installed on the lifting frame (2). The first cylinder (48) is connected to one of the linear modules (43) through a connecting plate (49).

3. The lifting device for storing plastic film slitting rolls according to claim 1, characterized in that, The clamping assembly includes a slide rail (51), which is fixed on a lifting plate (21). A lifting seat (52) is slidably arranged on the slide rail (51). The slide rail (51) is arranged in a vertical direction. A pressure plate (53) is fixed on the side of the lifting seat (52). A clamping structure is provided on the bottom surface of the pressure plate (53). The clamping assembly also includes a second cylinder (58), which is installed on the side of the slide rail (51). The extension end of the second cylinder (58) is connected to the lifting seat (52).

4. The lifting device for storing plastic film slitting rolls according to claim 3, characterized in that, The pressing structure includes two fixed frames (54), which are respectively fixed at both ends of the pressure plate (53). Each fixed frame (54) has two movable seats (55) slidably arranged on it. Each movable seat (55) is connected to the pressure plate (53) through a tension spring (551). Each movable seat (55) has a side plate (56) fixed on it. The four side plates (56) are arranged in pairs facing each other. A pressure roller (57) is rotatably installed between the two side plates (56) facing each other.

5. A lifting device for storing plastic film slitting rolls according to claim 4, characterized in that, The two pressure rollers (57) are arranged in a mirror symmetry, and both pressure rollers (57) are located directly above the base (3).

6. A lifting device for storing plastic film slitting rolls according to claim 4, characterized in that, Each of the fixed frames (54) is fixed with four limiting blocks (541). The four limiting blocks (541) are in pairs, and the two sets of limiting blocks (541) act on the two movable seats (55) respectively.

7. A lifting device for storing plastic film slitting rolls according to claim 4, characterized in that, A rotating shaft (61) is rotatably mounted on the base (3). A baffle (62) is fixed at one end of the rotating shaft (61), and a gear (63) is fixed at the other end of the rotating shaft (61). A vertical rod (64) is fixed on the side of the pressure plate (53). A rack (65) is fixed at the end of the vertical rod (64) away from the pressure plate (53). The rack (65) is positioned opposite the gear (63).

8. A lifting device for storing plastic film slitting rolls according to claim 7, characterized in that, In the initial state, the baffle (62) is in a horizontal state and the baffle (62) is offset from the V-shaped groove of the base (3).

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