Film roll lifting device

Abstract

A film roll lifting device relates to the technical field of lifting devices, and adopts the technical scheme that the film roll lifting device comprises a rotating unit, a first lifting unit and a second lifting unit, and the rotating unit comprises a fixed support, a rotating shaft and a rotating driving device; the first lifting unit comprises a telescopic bracket; the telescopic bracket comprises a plurality of passive telescopic rods connected with the rotating shaft, a cross beam connected among the tail ends of the plurality of passive telescopic rods, and an active telescopic device; the second lifting unit comprises a sliding cross rod, a plurality of guide rods connected between the sliding cross rod and the cross beam, a film roll seat slidably connected with the guide rods, a pulley rotationally connected with the sliding cross rod and an inhaul cable, one end of the inhaul cable is connected with the film roll seat, and the other end of the inhaul cable is connected with the film roll seat. And the other end of the driving telescopic device bypasses the pulley and is connected with the fixed end of the driving telescopic device. The film roll lifting device effectively replaces manual work to complete lifting operation of a film roll, improves operation efficiency, reduces labor intensity and reduces safety risks.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting devices, in particular to a film roll lifting device. Background Art

[0002] When not in use, heat shrink film is typically rolled up. During the heat shrink film production process, the rolls must be lifted from the ground to the top of the film feeder, where they are then installed. Each roll of heat shrink film weighs nearly 80 kilograms. Because the film feeder lacks a work platform and a crane or other lifting equipment, replacing the film requires manual lifting of the film to the top of the film feeder, two meters above the ground. This is labor-intensive. The confined working space and heavy cargo can easily cause an unstable center of gravity, posing safety risks such as tipping and mechanical injury. Utility Model Content

[0003] In view of the problems of high labor intensity and safety risks in manually lifting the film roll in the existing technical solutions, the utility model provides a film roll lifting device.

[0004] The utility model provides the following technical solution: a film roll lifting device, comprising:

[0005] A rotating unit, comprising a fixed bracket, a rotating shaft rotatably connected to the fixed bracket, and a rotating drive device drivingly connected to the rotating shaft;

[0006] a first lifting unit, the first lifting unit comprising a telescopic bracket, the telescopic bracket comprising a plurality of passive telescopic rods connected to the rotating shaft, a crossbeam connected between ends of the plurality of passive telescopic rods, and an active telescopic device disposed between the crossbeam and the rotating shaft;

[0007] The second lifting unit includes a sliding cross bar that moves along the length direction of the passive telescopic rod, a plurality of guide rods connected between the sliding cross bar and the cross beam, a film roll seat that is slidably connected to the guide rod, a pulley that is rotatably connected to the sliding cross bar, and a cable, one end of the cable is connected to the film roll seat, and the other end passes around the pulley and is connected to the fixed end of the active telescopic device.

[0008] Preferably, the rotation drive device includes a winch and a rotating arm provided on the rotating shaft, and the pulling rope of the winch is connected to the rotating arm.

[0009] Preferably, the active telescopic device is a cylinder, and the fixed end of the active telescopic device is the cylinder body of the cylinder; a reinforcing cross bar is further provided between the plurality of passive telescopic rods, and the reinforcing cross bar is connected to the cylinder body of the cylinder.

[0010] Preferably, rollers are provided at both ends of the sliding cross bar, and the two rollers roll on the two passive telescopic rods respectively.

[0011] Preferably, the film roll seat is further provided with a guide rail.

[0012] Preferably, a supporting unit is further included, and the supporting unit includes a supporting frame arranged at the bottom of the telescopic bracket.

[0013] Preferably, the support unit further comprises a vertical rod connected to the fixed bracket, the support bracket is rotatably connected to the telescopic bracket, and a connecting rod is hinged between the support bracket and the vertical rod.

[0014] The beneficial effects of the utility model are: effectively replacing manual labor to complete the lifting operation of the film roll, improving operation efficiency, reducing labor intensity, lowering safety risks, and having a simple structure and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of an embodiment of a film roll lifting device Figure I .

[0016] Figure 2 Schematic diagram of an embodiment of a film roll lifting device Figure II .

[0017] Figure 3 A side view of an embodiment of a film roll lifting device.

[0018] Figure numerals: 11, fixed bracket; 12, rotating shaft; 13, winch; 14, rotating arm; 21, passive telescopic rod; 22, crossbeam; 23, active telescopic device; 24, reinforcing cross bar; 31, sliding cross bar; 32, guide rod; 33, film roll seat; 34, cable; 35, roller; 36, guide rail; 41, support frame; 42, vertical rod; 43, connecting rod. DETAILED DESCRIPTION

[0019] The following is a more detailed description of the embodiments of the present invention with reference to the accompanying drawings and reference numerals, so that those skilled in the art can implement the invention after studying this specification. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] The utility model provides Figure 1-3 The film roll lifting device shown includes a rotating unit, a first lifting unit and a second lifting unit. The first and second lifting units lift the film roll from a low place to a high place, and then the rotating unit lifts the end of the film roll lifting device to form an inclined surface higher than the film supply machine, allowing the film roll to roll to the top surface of the film supply machine.

[0021] The rotating unit includes a fixed bracket 11, a rotating shaft 12 rotatably connected to the fixed bracket 11, and a rotating drive device that is transmission-connected to the rotating shaft 12. The fixed bracket 11 is welded to the top of the side of the film supply machine, and the film roll lifting device is fixed to one side of the film supply machine. The rotating drive device drives the film roll lifting device to rotate around the rotating shaft 12. In this embodiment, the rotating drive device includes a winch 13 and a rotating arm 14 provided on the rotating shaft 12. The pulling rope of the winch 13 is connected to the rotating arm 14, and the clockwise and counterclockwise rotation is completed by the retraction and extension of the pulling rope and the gravity of the film roll lifting device itself. In other embodiments, the rotating drive device can also use a motor and a reducer that are driven by the rotating shaft through gears, belts, etc.

[0022] The first lifting unit includes a telescopic bracket, which includes two passive telescopic rods 21 connected to the rotating shaft 12, a crossbeam 22 connected between the ends of the two passive telescopic rods 21, and an active telescopic device 23 arranged between the crossbeam 22 and the rotating shaft 12. Driven by the active telescopic device 23, the crossbeam 22 can move closer to or away from the rotating shaft 12. Specifically, the passive telescopic rod 21 includes a fixed end and a telescopic end, wherein the fixed end is connected to the rotating shaft 12, and the telescopic end is connected to the crossbeam 22. The active telescopic device can be an air cylinder, an oil cylinder or an electric push rod. In this embodiment, an air cylinder is used; the fixed end of the cylinder is a cylinder body connected to the rotating shaft, and the telescopic end of the cylinder is a piston rod, the end of the piston rod is connected to the crossbeam 22. A reinforcing crossbeam 24 is also provided between the fixed ends of the two passive telescopic rods 21, and the reinforcing crossbeam 24 is connected to the cylinder body of the cylinder to enhance stability.

[0023] The second lifting unit is used to complete the secondary lifting of the film roll. The second lifting unit includes a sliding cross bar 31 that moves along the length direction of the passive telescopic rod 21, a plurality of guide rods 32 connected between the sliding cross bar 31 and the cross beam 22, a film roll seat 33 that is slidably connected to the guide rod 32, a pulley 37 that is rotatably connected to the sliding cross bar 31, and a cable 34. One end of the cable 34 is connected to the film roll seat 33, and the other end bypasses the pulley 37 and is connected to the fixed end of the active telescopic device 23. Specifically, rollers 35 are provided at both ends of the sliding cross bar 31, and the two rollers 35 roll on the two passive telescopic rods 21 respectively to reduce wear; the extension direction of the guide rod 32 is consistent with the telescopic direction of the active telescopic device 23 to prevent interference; the film roll seat 33 is an arc-shaped bracket that is adapted to the cylindrical shape of the film roll and is used to lift the film roll. Figure 3 As shown, when the active telescopic device 23 retracts, it drives the beam 22 and the guide rod 32, the sliding crossbar 31, and the pulley 37 to rise. At the same time, the pulley 37 pulls the film roll seat 33 through the cable 34 to accelerate its rise, so that it is further lifted to the vicinity of the rotating shaft 12.

[0024] The workflow of this utility model is as follows: Please refer to Figure 3 Before the lifting operation begins, the film roll lifting device is lowered close to the ground, and the film roll is loaded onto the film roll seat 33 by manual labor, forklift, etc.; then the active telescopic device 23 is retracted to increase the height of the beam 22, and at the same time the pulley pulls the film roll seat 33 through the cable 34 to accelerate the rise. When the beam 22 moves to the middle of the film roll lifting device, the film roll seat 33 and the film roll have been lifted to the vicinity of the rotating shaft 12; finally, the rotary drive device is started to lift the end of the film roll lifting device to form an inclined plane higher than the film supply machine, and the film roll rolls to the top of the film supply machine under its own gravity, completing the lifting operation.

[0025] Preferably, the film roll seat 33 is further provided with a guide rail 36 to prevent the fixing bracket 11 from being too long and causing the film roll to be stuck in the gap between the rotating shaft 12 and the film supply machine when rolling.

[0026] Preferably, the film roll lifting device further comprises a support unit, comprising a support frame 41 disposed at the bottom of the telescopic bracket to prevent damage to the film roll lifting device caused by excessive impact when loading the film roll into the film roll seat 33. The support unit further comprises a vertical rod 42 connected to the fixed bracket. The support frame 41 is rotatably connected to the telescopic bracket, and a connecting rod 43 is hinged between the support frame 41 and the vertical rod 42. When the rotating unit raises the end of the film roll lifting device, the support frame 41 is retracted via the connecting rod 43.

[0027] The above is a description of one or more embodiments of the present invention, and while the description is relatively specific and detailed, it should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the scope of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A film roll lifting device, characterized in that: include: A rotating unit, comprising a fixed bracket, a rotating shaft rotatably connected to the fixed bracket, and a rotating drive device drivingly connected to the rotating shaft; a first lifting unit, the first lifting unit comprising a telescopic bracket, the telescopic bracket comprising a plurality of passive telescopic rods connected to the rotating shaft, a crossbeam connected between ends of the plurality of passive telescopic rods, and an active telescopic device disposed between the crossbeam and the rotating shaft; The second lifting unit includes a sliding cross bar that moves along the length direction of the passive telescopic rod, a plurality of guide rods connected between the sliding cross bar and the cross beam, a film roll seat that is slidably connected to the guide rod, a pulley that is rotatably connected to the sliding cross bar, and a cable, one end of the cable is connected to the film roll seat, and the other end passes around the pulley and is connected to the fixed end of the active telescopic device.

2. A film roll lifting device according to claim 1, characterized in that: The rotary drive device includes a hoist and a rotating arm arranged on the rotating shaft, and the pulling rope of the hoist is connected to the rotating arm.

3. The film roll lifting device according to claim 1, characterized in that: The active telescopic device is a cylinder, and the fixed end of the active telescopic device is the cylinder body of the cylinder; a reinforcing cross bar is further provided between the plurality of passive telescopic rods, and the reinforcing cross bar is connected to the cylinder body of the cylinder.

4. The film roll lifting device according to claim 1, characterized in that: Both ends of the sliding cross bar are provided with rollers, and the two rollers roll on the two passive telescopic rods respectively.

5. The film roll lifting device according to claim 1, characterized in that: The film roll seat is also provided with a guide rail.

6. The film roll lifting device according to claim 1, characterized in that: It also includes a supporting unit, which includes a supporting frame arranged at the bottom of the telescopic bracket.

7. The film roll lifting device according to claim 6, characterized in that: The support unit further comprises a vertical rod connected to the fixed bracket, the support bracket is rotatably connected to the telescopic bracket, and a connecting rod is hinged between the support bracket and the vertical rod.

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