A pallet lifting device

Abstract

This application relates to the field of material handling and lifting, and provides a pallet lifting device, which includes a frame, a load-bearing component, and a drive component. The load-bearing component is slidably connected to the frame along its height direction and is used to support pallets. The drive component is mounted on the frame and is used to drive the load-bearing component to move up and down along the frame to adjust the height of the pallets. This application has the effect of reducing the labor intensity of workshop workers and improving work efficiency.

Description

Technical Field

[0001] This application relates to the field of material handling and lifting, and in particular to a palletizing pallet lifting device. Background Technology

[0002] The printing production process for cigarette packaging and other printed materials involves multiple steps. Some of these steps would be too costly to automate, so it's generally better to increase manual labor. For example, when cutting the corners of finished cigarette packs, workshop workers use a corner-cutting machine to remove the edges and corners, then manually stack the packs onto pallets one by one. Once a certain quantity is stacked, a forklift is used to transport the pallets and the packs away.

[0003] This palletizing method is relatively flexible, does not require large-scale automated equipment, and does not need to consider the limitations of the workshop space. However, since the pallets are usually placed on the workshop floor, in order to stack the paper neatly and stably, the workshop workers inevitably have to bend over when they start to stack the bottom stack of paper on the pallet. Such frequent bending over leads to a large workload for the workshop workers and indirectly affects work efficiency. Utility Model Content

[0004] In order to reduce the labor intensity of workshop workers and improve work efficiency, this application provides a pallet lifting device.

[0005] The palletizing pallet lifting device provided in this application adopts the following technical solution:

[0006] A palletizing lifting device includes a frame, a support component, and a drive component. The support component is slidably connected to the frame along the height direction of the frame and is used to support pallets. The drive component is mounted on the frame and is used to drive the support component to move up and down along the frame to adjust the height of the pallets.

[0007] By adopting the above technical solution, the pallet is always kept at a height that operators can reach without bending over, eliminating the need for bending and thus reducing labor intensity and improving work efficiency. In some printing palletizing processes, operators can place the pallet, which was originally placed on the ground, onto the support component of the frame. The drive component then moves the support component to raise and lower the pallet. Initially, the operator raises the pallet to a height that is within reach without bending over, based on their own height. Subsequently, after stacking a certain thickness of paper, the pallet is lowered a certain height to facilitate continued palletizing.

[0008] Optionally, the frame includes a base and multiple slide rails vertically arranged on the base, all of which are vertically arranged; the load-bearing component includes a connecting frame and forks, the connecting frame is connected to the slide rails through a sliding structure, and the forks are fixed to the bottom end of the connecting frame and extend horizontally to support the tray.

[0009] By adopting the above technical solution, the cooperation between the sliding structure and the slide rail ensures the smoothness of the lifting and lowering of the load-bearing component relative to the frame, and forms a connection and limit between the load-bearing component and the frame to ensure the stability of the lifting and lowering of the load-bearing component.

[0010] Optionally, the sliding structure includes pulley blocks disposed on both sides of the connecting frame, the axis of rotation of the pulley blocks being along the width direction of the connecting frame; the slide rail has a sliding groove, the sidewall of the sliding groove being used for the sidewall of the pulley in the pulley block to abut against.

[0011] By adopting the above technical solution, the sliding groove and pulley block are used to further limit the load-bearing components, ensuring the stability of the lifting and lowering of the load-bearing components.

[0012] Optionally, a rotating disk is rotatably connected to the upper surface of the fork teeth, the axis of rotation of the rotating disk relative to the fork teeth being in the vertical direction, and the rotating disk being used to support the tray.

[0013] By adopting the above technical solution, the tray placed on the supporting component can rotate with the rotating disk, making it easier for workers to stack products.

[0014] Optionally, the drive assembly includes a drive component and a transmission mechanism. The drive component is linked to the load-bearing assembly through the transmission mechanism. The transmission mechanism includes a sprocket, a chain, and a fixed bracket. One end of the chain is fixed to the frame, and the other end is fixed to the load-bearing assembly. The drive component drives the load-bearing assembly to rise and fall by rotating the sprocket and causing the chain to extend and retract.

[0015] By adopting the above technical solution, the drive component drives the sprocket to rotate, and the rotation of the sprocket drives the chain to extend and retract, thereby driving the load-bearing component to rise or fall. The structure is simple and easy to operate.

[0016] Optionally, the driving component is a servo motor.

[0017] By adopting the above technical solutions, servo motors have advantages such as high precision, fast response, strong stability, wide speed range, small size and long life, which facilitates precise adjustment of the movement distance of the load-bearing components.

[0018] Optionally, the frame is detachably connected to a mobile power supply, and the servo motor is electrically connected to the mobile power supply via a control module.

[0019] By adopting the above technical solution, the driving component is powered by a detachable mobile power source, reducing interference from electrical wires.

[0020] Optionally, the bottom of the frame is provided with casters.

[0021] By adopting the above technical solution, the lifting device can be moved easily, thus improving its flexibility of use.

[0022] Optionally, the drive assembly includes a servo motor, a lead screw, and a connecting block; the lead screw is vertically rotatably connected to the frame, and the servo motor is used to drive the lead screw to rotate; the connecting block is connected to the bearing assembly, and the connecting block has a threaded hole for threaded engagement with the lead screw.

[0023] By adopting the above technical solution, the lead screw is driven to rotate by the servo motor. When the lead screw rotates, it drives the connecting block to move up and down through the engagement with the screw hole of the connecting block, thereby driving the load-bearing component to rise and fall. The structure is simple, easy to operate, and has a self-locking function, which can reduce the stress on the servo motor.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. The lifting device includes a frame, a load-bearing component, and a drive component. The load-bearing component is used to carry the pallet, and the drive component is used to drive the load-bearing component to lift and lower relative to the frame, thereby adjusting the height of the pallet on the load-bearing component to a height that does not require the worker to bend over, reducing the worker's workload and improving stacking efficiency.

[0026] 2. By installing slide rails on the frame and pulley blocks on the load-bearing components, the connection between the frame and the load-bearing components is limited, while ensuring the smooth movement of the load-bearing components relative to the frame.

[0027] 3. A rotating disk is rotatably connected to the upper surface of the fork teeth. The rotating disk carries the pallet, allowing the pallet to rotate with the rotating disk, which makes it easier for workers to stack products. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application.

[0029] Figure 2 This is a schematic diagram illustrating the structure of the slide rail and pulley system in Embodiment 1.

[0030] Figure 3 This is a schematic diagram illustrating the structure of the connector in Embodiment 1.

[0031] Figure 4 This is a schematic diagram of the overall structure of Embodiment 2 of this application.

[0032] Figure 5 This is a schematic diagram of the overall structure of Embodiment 3 of this application.

[0033] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Base; 12. Slide rail; 13. Sliding groove; 2. Bearing assembly; 21. Connecting frame; 211. Connecting screw; 22. Fork tooth; 23. Roller; 24. Pulley block; 3. Drive assembly; 31. Drive component; 32. Transmission mechanism; 321. Sprocket; 322. Chain; 323. Connecting component; 324. Threaded hole; 33. Servo motor; 34. Lead screw; 35. Connecting block; 351. Screw hole; 37. Rotating disk; 4. Tray. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0035] This application discloses a pallet lifting device.

[0036] Example 1

[0037] Reference Figures 1 to 3 A pallet lifting device includes a frame 1, a support component 2, and a drive component 31. The support component 2 is slidably connected to the frame 1 along its height direction and is used to support a pallet 4. The drive component 3 is mounted on the frame 1 and is used to drive the support component 2 to move up and down along the frame 1 to adjust the height of the pallet 4. This achieves the effect of flexibly adjusting the height of the pallet 4, reducing the number of times workers bend over, reducing labor load, and improving work efficiency.

[0038] Specifically, the frame 1 includes a base 11 and multiple vertically arranged slide rails 12 on the base 11. All slide rails 12 are vertically arranged. In this embodiment, two slide rails 12 are provided. The base 11 is generally made of a stable metal material, such as stainless steel or carbon steel, and its shape can be rectangular or square, used to stabilize the entire device. The slide rails 12 can be T-shaped slide rails 12, dovetail slide rails 12, etc., and are fixed to the base 11 by welding, bolting, or other methods.

[0039] The load-bearing component 2 includes a connecting frame 21 and forks 22. The connecting frame 21 is connected to the slide rail 12 via a sliding structure. The forks 22 are fixed to the bottom end of the connecting frame 21 and extend horizontally to support the tray 4. The connecting frame 21 is welded from metal tubing and has a certain strength and rigidity. The sliding structure includes pulley blocks 24 disposed on both sides of the connecting frame 21, with the axis of rotation of the pulley blocks 24 along the width direction of the connecting frame 21.

[0040] The slide rail 12 has a sliding groove 13, and the openings of the two sliding grooves 13 of the two slide rails 12 are arranged opposite to each other. The sidewall of the sliding groove 13 is used for the sidewall of the pulley in the pulley block 24 to abut against. The pulley rolls in the sliding groove 13, realizing the sliding of the connecting frame 21 on the slide rail 12. The fork tooth 22 can be a solid metal rod or a hollow metal tube, which is fixed to the connecting frame 21 by welding or bolting, and is used to stably support the tray 4.

[0041] The combination logic of the load-bearing component 2 is that the connecting frame 21 slides on the slide rail 12 through the pulley block 24, and the fork tooth 22 is fixed on the connecting frame 21 and moves with the connecting frame 21, thereby realizing the load-bearing and height adjustment of the pallet 4, so that the load-bearing component 2 can move flexibly on the frame 1, ensuring the smooth lifting and lowering of the pallet 4.

[0042] In this embodiment, two fork teeth 22 are provided, and the space between the two fork teeth 22 is used for forklift insertion.

[0043] Specifically, in this embodiment, the drive assembly 3 includes a drive component 31 and a transmission mechanism 32. The drive component 31 is linked to the support assembly 2 through the transmission mechanism 32. The transmission mechanism 32 includes a sprocket 321, a chain 322, and a connector 323. One end of the chain 322 is fixed to the frame 1, and the other end is fixed to the support assembly 2. The drive component 31 drives the chain 322 to move up and down by rotating the sprocket 321, thereby driving the support assembly 2 to rise and fall. The drive component 31 is a servo motor 33, which has advantages such as high control precision and fast response speed. The sprocket 321 is generally made of metal and is mounted on the output shaft of the servo motor 33 by means of key connection or other methods. The chain 322 is a high-strength metal chain, such as an alloy steel chain 322.

[0044] The bottom surface of the connector 323 is provided with a threaded hole 324, and a connecting screw 211 is fixed on the connecting frame 21. The connecting screw 211 is used to engage with the threaded hole 324 to realize the detachable connection between the chain 322 and the connecting frame 21.

[0045] The combination logic of the drive component 3 is that the servo motor 33 drives the sprocket 321 to rotate, the sprocket 321 drives the chain 322 to extend and retract, and the chain 322 pulls the load-bearing component 2 up and down along the frame 1, so as to accurately control the lifting height and speed of the load-bearing component 2.

[0046] The frame 1 is detachably connected to a power supply (not shown in the figure), and the servo motor 33 is electrically connected to the power supply via a control module. The power supply can be a lithium battery pack, a lead-acid battery pack, etc., to facilitate the use of the device in different locations. The control module can set the operating parameters of the servo motor 33 according to actual needs to achieve precise control of the lifting and lowering of the support component 2.

[0047] In other embodiments, it can be formed by retrofitting an existing hydraulic manual stacker, without the need for a completely new design, thus saving costs.

[0048] Furthermore, the bottom of the frame 1 is equipped with casters 23, which can be casters, directional casters, etc., to facilitate the movement and positioning of the device. Using the casters 23, the device can be flexibly moved to a suitable working position within the workshop.

[0049] The implementation principle of Example 1 is as follows: The pallet 4 lifting device, through the cooperation of the frame 1, the bearing component 2, and the drive component 3, achieves flexible adjustment of the pallet 4 height. During palletizing, workers can adjust the pallet 4 height as needed via the drive component 3, avoiding frequent bending, reducing labor load, and improving work efficiency. Simultaneously, the inclusion of a mobile power supply and rollers 23 enhances the device's flexibility and mobility, making it suitable for various workshop environments. For cigarette packaging paper, the overall movement of the pallet 4 can be 80cm, automatically lowering it by 12cm after each layer of tablets is stacked.

[0050] Example 2

[0051] Reference Figure 4 The difference between this embodiment and Embodiment 1 is that the drive assembly 3 includes a servo motor 33, a lead screw 34, and a connecting block 35. The lead screw 34 is vertically rotatably connected to the frame 1, and the servo motor 33 drives the lead screw 34 to rotate. The connecting block 35 is connected to the bearing assembly 2, and the connecting block 35 has a threaded hole 351 for threaded engagement with the lead screw 34. The lead screw 34 is generally a trapezoidal lead screw 34 or a ball screw 34, which has high transmission efficiency and precision. The connecting block 35 is usually made of metal and is connected to the bearing assembly 2 by welding or bolting.

[0052] Example 3

[0053] Reference Figure 5 The difference between this embodiment and Embodiment 1 is that a connecting rod is provided between the two fork teeth 22, and a rotating disk 37 is rotatably connected to the connecting rod. The rotating disk 37 is used to support the pallet 4, so that the pallet 4 can move relative to the fork teeth 22 with the rotating disk 37, making it convenient for workers to adjust the stacking position. It can be understood that the rotating disk 37 has a slot for forklifts to insert.

[0054] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A palletizing pallet (4) lifting device, characterized in that: The device includes a frame (1), a support component (2), and a drive component (3). The support component (2) is slidably connected to the frame (1) along the height direction of the frame (1) and is used to support a tray (4). The drive component (3) is mounted on the frame (1) and is used to drive the support component (2) to rise and fall along the frame (1) to adjust the height of the tray (4).

2. The palletizing pallet (4) lifting device according to claim 1, characterized in that: The frame (1) includes a base (11) and multiple slide rails (12) vertically arranged on the base (11). All slide rails (12) are vertically arranged. The bearing component (2) includes a connecting frame (21) and forks (22). The connecting frame (21) is connected to the slide rails (12) through a sliding structure. The forks (22) are fixed to the bottom end of the connecting frame (21) and extend horizontally to support the tray (4).

3. The palletizing pallet (4) lifting device according to claim 2, characterized in that: The sliding structure includes pulley groups (24) disposed on both sides of the connecting frame (21), the axis of rotation of the pulley groups (24) is along the width direction of the connecting frame (21); the slide rail (12) has a sliding groove (13), the side wall of the sliding groove (13) is used for the side wall of the pulley in the pulley group (24) to abut.

4. The palletizing pallet (4) lifting device according to claim 2, characterized in that: The upper surface of the fork tooth (22) is rotatably connected to a rotating disk (37). The axis of rotation of the rotating disk (37) relative to the fork tooth (22) is in the vertical direction. The rotating disk (37) is used to support the tray (4).

5. The palletizing pallet (4) lifting device according to claim 1, characterized in that: The drive assembly (3) includes a drive component (31) and a transmission mechanism (32). The drive component (31) is linked with the bearing assembly (2) through the transmission mechanism (32). The transmission mechanism (32) includes a sprocket (321), a chain (322) and a fixed bracket. One end of the chain (322) is fixed to the frame (1) and the other end is fixed to the bearing assembly (2). The drive component (31) drives the chain (322) to move up and down by rotating the sprocket (321) to drive the bearing assembly (2) to rise and fall.

6. The palletizing pallet (4) lifting device according to claim 5, characterized in that: The driving component (31) is a servo motor (33).

7. A palletizing pallet (4) lifting device according to claim 6, characterized in that: The frame (1) is detachably connected to a mobile power supply, and the servo motor (33) is electrically connected to the mobile power supply through a control module.

8. The palletizing pallet (4) lifting device according to claim 1, characterized in that: The bottom of the frame (1) is provided with rollers (23).

9. A palletizing pallet (4) lifting device according to claim 1, characterized in that: The drive assembly (3) includes a servo motor (33), a lead screw (34), and a connecting block (35); the lead screw (34) is vertically rotatably connected to the frame (1), and the servo motor (33) is used to drive the lead screw (34) to rotate; the connecting block (35) is connected to the bearing assembly (2), and the connecting block (35) has a threaded hole (351) through it for the lead screw (34) to be threaded.

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