Winding drum material lifting mechanism

Abstract

A winding drum material lifting mechanism comprises two parallel material supporting shafts which are arranged at the same height, swing arms arranged at the two ends of the material supporting shafts and a driving mechanism for driving the swing arms. The two swing arms on the same side of the material supporting shaft intersect with each other, the upper ends of the swing arms are connected with the material supporting shaft, the lower ends of the swing arms serve as rotating fulcrums, and the driving mechanism drives the two swing arms on the same side to move reversely. According to the utility model, a scissor crossing type lifting mechanism is adopted, so that the lifting range is larger, and the low-position feeding effect can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of logistics transportation, in particular to a roll material lifting mechanism. Background Art

[0002] Roll materials generally require a lifting mechanism to assist in loading. Existing lifting mechanisms are usually implemented using hydraulic mechanisms. The lowest lifting position is limited by the mechanism and cannot achieve low-position loading, and cannot even be used in some lower unwinding mechanisms. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a roll material lifting mechanism to solve the technical problems existing in the prior art.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a roll material lifting mechanism, including two parallel and equal-height supporting shafts, swing arms arranged at both ends of the supporting shafts and a driving mechanism for driving the swing arms; the two swing arms on the same side of the supporting shaft cross each other, the upper end of the swing arm is connected to the supporting shaft, the lower end of the swing arm serves as a rotating fulcrum, and the driving mechanism drives the two swing arms on the same side to move in opposite directions. The principle of the utility model: the lifting mechanism can be arranged on an AGV trolley, the AGV trolley serves as a mobile platform of the lifting mechanism, and the lifting mechanism serves as a lifting platform for the roll material; when the lifting mechanism is loaded, the roll material is transferred to the lifting mechanism by manual or mechanical arms, the two supporting shafts are supported on both sides of the bottom of the roll material, the AGV trolley transfers the roll material to the loading station according to the preset path, the lifting mechanism lifts the roll material to the designated position according to the center position of the roll diameter, and then the cone top of the unwinding mechanism clamps the two ends of the roll material. The utility model adopts a scissor-cross type lifting mechanism, which has a larger lifting range and can achieve the effect of low-position feeding.

[0005] As an improvement, the material supporting shaft includes an axis core and a roller sleeved on the axis core, one end of the axis core is provided with a stop platform that abuts against the end face of one end of the roller, the other end of the roller is provided with a receiving groove, the receiving groove is provided with a spring, the spring is sleeved on the axis core, one end of the spring abuts against the stop face in the receiving groove, and the other end of the spring abuts against the swing arm.

[0006] As an improvement, the roller is provided with a first through hole running through both ends thereof, the shaft core passes through the first through hole, a second through hole is provided at one end of the roller, the diameter of the first through hole is smaller than the diameter of the second through hole, and the stop surface is formed at the transition between the first through hole and the second through hole.

[0007] As an improvement, the other end of the shaft core extends out of the roller to form an extension section, and the length of the extension section is the same as the length of the stop platform.

[0008] As an improvement, the extension section is covered with a telescopic sleeve, and the spring is arranged between the extension section and the telescopic sleeve.

[0009] As an improvement, the telescopic sleeve is a bellows, one end of the bellows is provided with a connecting pipe, and the connecting pipe is inserted into the accommodating groove.

[0010] As an improvement, the swing arm is V-shaped.

[0011] As an improvement, the driving mechanism includes a screw with two sections of reverse threads and two nut seats symmetrically arranged on the screw, the two nut seats correspond to the two supporting shafts respectively, and the nut seats are provided with a supporting roller acting on the swing arm.

[0012] As an improvement, the lower end of the swing arm is rotatably connected to the support frame.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model adopts a scissor-cross type lifting mechanism, which has a larger lifting range and can achieve the effect of low-position feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a side schematic diagram of the utility model.

[0016] Figure 2 It is a front schematic diagram of the utility model.

[0017] Figure 3 Exploded view of the support shaft.

[0018] Figure 4 This is a cross-sectional view of the support axis. DETAILED DESCRIPTION

[0019] The utility model will be further described below in conjunction with the accompanying drawings.

[0020] like Figure 1 , 2 As shown, a roll material lifting mechanism comprises two parallel and equal-height supporting shafts 2, swing arms 3 arranged at both ends of the supporting shafts 2, and a driving mechanism for driving the swing arms to swing.

[0021] like Figure 1 , 2 As shown, the two swing arms 3 on the same side of the supporting shaft 2 cross each other, and the swing arm 3 is V-shaped. The upper end of the swing arm 3 is connected to the supporting shaft 2, and the lower end of the swing arm 3 serves as a rotation fulcrum and is rotatably connected to the side of the support frame 7, so that the supporting shaft 2 is located above the top of the support frame 7; by adopting a scissor-cross lifting mechanism, the lifting range of the supporting shaft 2 is larger, and the effect of low-position loading can be achieved.

[0022] like Figure 1 , 2 As shown, the driving mechanism drives the two swing arms 3 on the same side to move in opposite directions, and includes a screw rod 8 with two sections of reverse threads, two nut seats 5 symmetrically arranged on the screw rod 8, and a power source 6 for driving the screw rod 8 to rotate; the screw rod 8 is arranged at the top of the support frame 7 below the support shaft 2, the screw rod 8 is perpendicular to the support shaft 2, the two nut seats 5 correspond to the two support shafts 2 respectively, the nut seat 5 is in the shape of an elongated strip, the nut seat 5 is arranged parallel to the support shaft 2, the nut seat 5 is slidably matched with the support frame 7 through a sliding assembly 9, and the two ends of the nut seat 5 are provided with a function The support roller 4 and the nut seat 5 on the swing arm 3 drive the support roller 4 to push the swing arm 3 to swing. When the two nut seats 5 are close to each other, the two support shafts 2 are close to each other to achieve lifting. When the two nut seats 5 are away from each other, the two support shafts 2 are away from each other to achieve lowering. The power source 6 includes a worm gear mechanism. The motor drives the screw 8 through the worm gear mechanism. The worm gear has a self-locking function to prevent the roll material from sliding down autonomously during loading and unloading transportation. The screw 8 and the nut seat 5 cooperate with the motor, and the motor can achieve high-precision lifting with the cooperation of the absolute encoder.

[0023] like Figure 3 , 4 As shown, the support shaft 2 includes an axis core 22 and a roller 23 sleeved on the axis core 22. One end of the axis core 22 is provided with a stopper 21 that abuts against the end surface of one end of the roller 23, and the end of the stopper 21 is fixedly connected to the swing arm 3; the other end of the axis core 22 is connected to the swing arm 3 on the other side. One end of the roller 23 is provided with a receiving groove 26, and a spring 24 is provided in the receiving groove 26. The spring 24 is sleeved on the axis core 22, and one end of the spring 24 abuts against the stopper surface 27 in the receiving groove 26, and the other end of the spring 24 abuts against the swing arm 3. Under the action of the spring 24, the roller 23 is forced to be close to the stopper 21. The roller 23 is provided with a first through hole that runs through both ends thereof, and the axis core 22 passes through the first through hole. One end of the roller 23 is provided with a second through hole, and the diameter of the first through hole is smaller than the diameter of the second through hole. The stopper surface is formed at the transition between the first through hole and the second through hole, and the second through hole forms the receiving groove 26. The other end of the shaft core 22 passes through the accommodating groove 26 and extends out of the roller 23 to form an extended section. The length of the extended section is the same as the length of the stop platform 21, ensuring that the roller 23 is in the middle position of the swing arms 3 at both ends; the extension section is covered with a telescopic sleeve 25, and the spring 24 is arranged between the extension section and the telescopic sleeve 25. The telescopic sleeve 25 can protect the extended spring 24 and the shaft core 22; the telescopic sleeve 25 is a bellows, and a connecting pipe is provided at one end of the bellows. The connecting pipe is inserted into the accommodating groove 26. During the lateral movement of the roller 23, the bellows can be adaptively telescoped.

[0024] The principle of the utility model is as follows: the support shaft 2 is installed at the upper end of the swing arm 3, and the two cross-arranged swing arms 3 jointly support and lift the roll material 1 through the support shaft 2, so that it can reach the height for loading; when loading, the cone top at one end of the unwinding mechanism first extends into one end of the roll material 1, and the cone top at the other end of the unwinding mechanism then extends into the other end of the roll material 1, thereby completing the loading of the roll material 1. During the loading process, the roll material 1 may rotate on the lifting mechanism, and since the roller 23 can rotate around the shaft core 22, the roll material 1 is prevented from being damaged; since the roller 23 can move laterally along the shaft core 22 and realize automatic reset, it is prevented that the cone top clamps the roll material 1 and damages the surface of the roll material 1. The lifting mechanism can be installed on the AGV trolley, which serves as a mobile platform for the lifting mechanism, and the lifting mechanism serves as a lifting platform for the roll material. When the lifting mechanism is loading materials, the roll material is transferred to the lifting mechanism manually or by a mechanical arm, and two supporting shafts are supported on both sides of the bottom of the roll material. The AGV trolley transfers the roll material to the loading station according to the preset path, and the lifting mechanism lifts the roll material to the designated position according to the center position of the roll diameter, and then the cone top of the unwinding mechanism clamps the two ends of the roll material.

Claims

1. A web lifting mechanism, characterized in that: It includes two parallel and equal-height supporting shafts, swing arms arranged at both ends of the supporting shafts, and a driving mechanism for driving the swing arms; the two swing arms on the same side of the supporting shaft cross each other, the upper ends of the swing arms are connected to the supporting shafts, the lower ends of the swing arms serve as rotation fulcrums, and the driving mechanism drives the two swing arms on the same side to move in opposite directions.

2. A web lifting mechanism according to claim 1, characterized in that: The material support shaft includes an axis core and a roller sleeved on the axis core, one end of the axis core is provided with a stop platform that abuts against the end surface of one end of the roller, the other end of the roller is provided with a receiving groove, the receiving groove is provided with a spring, the spring is sleeved on the axis core, one end of the spring abuts against the stop surface in the receiving groove, and the other end of the spring abuts against the swing arm.

3. A web lifting mechanism according to claim 2, characterized in that: The roller is provided with a first through hole running through both ends thereof, the shaft core passes through the first through hole, a second through hole is provided at one end of the roller, the diameter of the first through hole is smaller than the diameter of the second through hole, and the stop surface is formed at the transition between the first through hole and the second through hole.

4. A web lifting mechanism according to claim 2, characterized in that: The other end of the shaft core extends out of the roller to form an extension section, and the length of the extension section is the same as the length of the stop platform.

5. A web lifting mechanism according to claim 4, characterized in that: The extension section is covered with a telescopic sleeve, and the spring is arranged between the extension section and the telescopic sleeve.

6. A web lifting mechanism according to claim 5, characterized in that: The telescopic sleeve is a bellows, one end of which is provided with a connecting pipe, and the connecting pipe is inserted into the accommodating groove.

7. A web lifting mechanism according to claim 1, characterized in that: The swing arm is V-shaped.

8. The web lifting mechanism according to claim 1, characterized in that: The driving mechanism comprises a screw with two sections of reverse threads and two nut seats symmetrically arranged on the screw, the two nut seats respectively correspond to the two supporting shafts, and the nut seats are provided with a supporting roller acting on the swing arm.

9. A web lifting mechanism according to claim 1, characterized in that: The lower end of the swing arm is rotatably connected to the support frame.

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