Multi-specification clamped coil carrying forklift

Abstract

The utility model provides a multi-specification coil clamping and carrying forklift, which belongs to the field of logistics storage and automatic control and comprises a clamping component driven by a steering oil cylinder, so that the multi-specification coil clamping and carrying forklift can be suitable for material coils with different diameters, and the purposes of improving the stability of a clamping structure, accurately controlling a swinging angle and realizing high safety performance are achieved. Comprising a vehicle body and two clamping arm assemblies which are connected to the same side of the vehicle body, have the same structure and are oppositely arranged. Each clamping arm assembly comprises a clamping arm base, a fixed side blocking arm perpendicular to the clamping arm base is connected to the rear portion of the clamping arm base, a swing arm assembly capable of horizontally swinging in a reciprocating mode is arranged on the front portion of the clamping arm base, and after the swing arm assembly swings by a certain angle in the horizontal direction, the swing arm assembly and the fixed side blocking arm clamp a material roll in the radial direction.

Description

Technical Field

[0001] This utility model relates to a novel clamping and handling device for multi-specification material rolls, with a particularly innovative design targeting the existing forklift clamp arm structure, belonging to the field of logistics warehousing and automation control. Background Technology

[0002] Currently, various handling devices (such as manned forklifts and unmanned AGVs) are widely used in logistics warehousing and automated production sites to pick up and transport various roll materials. Handling roll materials includes axial picking and radial clamping methods. For handling heavy-duty roll materials, radial handling helps avoid limitations in the handling direction, resulting in higher logistics efficiency.

[0003] The previously disclosed patent application, application number CN202410176466.0, entitled "Roll-type Composite Handling Robot," includes a vehicle body and modified legs. The modified legs are mounted on one side of the vehicle body and include a front support seat component and a rear support seat component. A lead screw drives the front support seat component to move. The rear support seat component includes a fixed leg, which is arranged perpendicular to the length direction of the lead screw. The front support seat component includes a swing arm, and a rotating motor drives the swing arm to rotate through a worm gear assembly and gear transmission.

[0004] The aforementioned existing technology employs a design method of using fixed legs and a swing arm to radially clamp the material coil. However, the swing arm, driven by a rotating motor, has a maximum and most stable clamping angle of only 90 degrees. Therefore, it can only be used to clamp material coils with a single shape and specification, and cannot be simultaneously applied to operations involving multiple specifications of material coils. Furthermore, for heavy-duty coiled materials, the mechanical components that drive the swing arm through the aforementioned worm gear assembly and gear transmission experience high wear, requiring regular replacement of the worm gear or gears, resulting in high operating costs.

[0005] In view of the above, this patent application is hereby filed. Utility Model Content

[0006] The multi-specification coil handling forklift described in this application addresses the problems existing in the prior art by proposing a clamping assembly driven by a steering cylinder, thereby enabling it to be applicable to coils of different diameters, achieving the goals of improving the stability of the clamping structure, ensuring precise and controllable swing angle, and realizing high safety performance.

[0007] To achieve the above design objectives, the multi-specification coil handling forklift includes a vehicle body and two sets of clamping arm assemblies connected to the same side of the vehicle body, having the same structure and arranged opposite to each other; each clamping arm assembly includes a clamping arm base, a fixed side stop arm connected perpendicularly to the rear of the clamping arm base, and a swing arm assembly that can swing horizontally back and forth at the front of the clamping arm base. After the swing arm assembly swings a certain angle in the horizontal direction, it together with the fixed side stop arm clamps the coil radially.

[0008] Furthermore, the swing arm assembly includes a balance valve and a steering cylinder respectively connected to the inlet and outlet oil circuits, and the output shaft of the steering cylinder is respectively connected to an encoder and a movable stop arm.

[0009] Furthermore, the movable stop arm includes a rotating seat fixedly connected to the output shaft of the steering cylinder, and the rotating seat is connected in the horizontal direction to an integrally formed set of straight rods and at least one set of bent rods.

[0010] Furthermore, arrays of stiffeners are provided at the horizontal and vertical connections between the rotating seat and the straight rod.

[0011] As mentioned above, the multi-specification coil handling forklift proposed in this application has the following advantages:

[0012] 1. The overall structure of this application is simplified, the drive components are modularly designed, the whole machine is easy to upgrade and modify, and it is highly practical.

[0013] 2. This application adopts a clamping method with a steering cylinder driving the swing arm to reciprocate, which makes the swing angle control more precise and can adapt to various specifications of material rolls. It is a multi-purpose machine and helps to reduce production costs.

[0014] 3. This application further improves the swing arm structure, which can produce a stable limiting and stopping effect, effectively improving the stability of the material roll clamping state and avoiding on-site safety accidents caused by the material roll accidentally falling off. Attached Figure Description

[0015] The present application will now be further illustrated with reference to the following figures.

[0016] Figure 1 This is a structural schematic diagram of the multi-specification coil clamping and handling forklift proposed in this application;

[0017] Figure 2 This is a schematic diagram of a set of clamping arm components;

[0018] Figure 3 This is a schematic diagram of the initial state of the clamping arm assembly before clamping operations;

[0019] Figure 4 This is a schematic diagram of the clamping arm assembly holding a large coil of material;

[0020] Figure 5 This is a schematic diagram of the clamping arm assembly holding a small roll of material; Detailed Implementation

[0021] Example 1, as Figures 1 to 5 As shown, this application proposes a novel multi-specification clamping and handling forklift, including a vehicle body 3 and two sets of clamping arm assemblies 2 connected to the same side of the vehicle body 3, having the same structure and being arranged opposite to each other;

[0022] Each clamping arm assembly 2 includes a clamping arm base 20, a fixed side stop arm 21 connected perpendicularly to the rear of the clamping arm base 20, and a swing arm assembly 4 that can swing horizontally back and forth at the front of the clamping arm base 20. After swinging horizontally at a certain angle, the swing arm assembly 4, together with the fixed side stop arm 21, radially clamps the large material roll 1 (e.g., ...). Figure 4 (as shown) or small roll 10 (e.g.) Figure 5 As shown in the figure, this is to achieve stable and safe clamping, and then the coil is transported to the designated workstation by a coil handling forklift.

[0023] Specifically, the swing arm assembly 4 includes a balance valve 42 and a steering cylinder 43 that are respectively connected to the inlet and outlet oil circuits, and the output shaft of the steering cylinder 43 is respectively connected to an encoder 41 and a movable stop arm 44.

[0024] The balance valve 42 controls the input and output of the oil circuit according to the signal command of the control system, so as to control the swing direction of the steering cylinder 43; the encoder 41 is used to provide real-time feedback on the steering angle of the steering cylinder 43, thereby controlling the rotation angle of the movable stop arm 44 to adapt to the diameter changes of different specifications of material rolls. Finally, after the movable stop arm 44 rotates to the position, the balance valve 42 closes the oil circuit to ensure the anti-reverse stability of the movable stop arm 44 clamping the material roll.

[0025] The movable stop arm 44 includes a rotating seat 44-1 fixedly connected to the output shaft of the steering cylinder 43 by an array of bolts. The rotating seat 44-1 is connected in the horizontal direction to an integrally formed set of straight rods 44-2 and at least one set of bent rods 44-3. An array of stiffening plates 44-4 are provided at the connection between the rotating seat 44-1 and the straight rods 44-2.

[0026] Driven by the steering cylinder 43, the movable stop arm 44 can rotate and position at multiple angles to accommodate coils of different specifications. For example, in actual production, it may be necessary to clamp and transport two different specifications of coils. Figure 4 and Figure 5 As shown, the movable stop arm 44 has a set of straight rods 44-2 and a set of bent rods 44-3 accordingly;

[0027] When clamping the large material roll 1, the steering cylinder 43 synchronously drives the straight rod 44-2 and the bent rod 44-3 to rotate through the rotating seat 44-1 until the straight rod 44-2 contacts and leans against the radial outer edge of the large material roll 1. At this time, the straight rod 44-2 and the radial outer edge of the large material roll 1 are in surface contact rather than point contact, so the straight rod 44-2 and the fixed side stop arm 21 jointly implement clamping and limiting.

[0028] When clamping the small material roll 10, the steering cylinder 43 drives the rotating seat 44-1 to rotate at a larger angle until the bent rod 44-3 contacts and leans against the radial outer edge of the small material roll 10. At this time, the bent rod 44-3 and the radial outer edge of the small material roll 10 are in surface contact rather than point contact, so the bent rod 44-3 and the fixed side arm 21 jointly implement clamping and limiting.

[0029] The embodiments described above, in conjunction with the accompanying drawings, are merely preferred solutions for achieving the objectives of this utility model. Those skilled in the art can draw inspiration from this and directly derive other alternative structures that conform to the design concept of this utility model. Other structural features derived therefrom should also fall within the scope of the solutions described in this utility model.

Claims

1. A multi-specification coil handling fork truck characterized by: The vehicle body and two groups of clamping arm assemblies connected to the same side of the vehicle body are structurally identical and oppositely arranged; Each group of clamping arm assemblies comprises a clamping arm base, a fixed side blocking arm connected perpendicularly to the rear of the clamping arm base, and a swing arm assembly arranged horizontally and reciprocally rotatable at the front of the clamping arm base, which, after being rotated by a certain angle along the horizontal direction, is radially clamped together with the fixed side blocking arm.

2. The multi-specification coil handling fork truck of claim 1, wherein: The swing arm assembly comprises a balance valve and a steering oil cylinder connected to an oil inlet and outlet respectively, and the output shaft of the steering oil cylinder is connected to an encoder and a movable blocking arm respectively.

3. The multi-specification coil handling fork truck of claim 2, wherein: The movable blocking arm comprises a rotating seat fixedly connected to the output shaft of the steering oil cylinder, and the rotating seat is connected to a set of straight rods and at least one set of bent rods in an integrated manner along the horizontal direction.

4. The multi-specification coil handling fork truck of claim 3, wherein: A plurality of rib plates are arranged at the horizontal and vertical connections between the rotating seat and the straight rods.

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