Clamping jaw mechanism for ton packaging vehicle
By introducing an anti-fall mechanism into the gripper mechanism of the ton bag truck, and using a combination of servo electric cylinder and spring hook plate, the problem of ton bag falling due to loose gripper was solved, and safe and reliable ton bag hoisting was achieved.
Patent Information
- Application Number
- CN202422824087.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-20
AI Technical Summary
The clamping mechanism of existing ton-bag trucks is prone to loosening after long-term use, causing the ton-bags to fall during lifting and causing losses.
A gripper mechanism including a servo electric cylinder, a gripper assembly, and an anti-drop mechanism was designed. The anti-drop mechanism uses the elastic potential energy of a spring to catch the ton bag when it falls, preventing it from falling rapidly, through a combination of a limit seat, a pulling frame, and a hook plate.
It effectively prevents ton bags from falling quickly after being loosened, reduces losses and improves lifting safety.
Smart Images

Figure CN223480613U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ton packaging truck technology, and in particular to a gripper mechanism for ton packaging trucks. Background Art
[0002] A ton bag is a flexible transport packaging container with advantages such as moisture-proof, dust-proof, radiation-resistant, and robust safety, possessing sufficient structural strength. Ton bags are generally made of polyester fibers such as polypropylene and polyethylene, and are suitable for transporting powdery, granular, and chemical products. A ton bag truck refers to the transport and loading of large quantities of ton bags onto a vehicle. When hoisting ton bags onto a truck, a movable gantry crane is often used, along with a lifting gripper mechanism on the gantry crane, to lift the ton bags and load them onto the truck.
[0003] However, some gripper mechanisms may become loose due to prolonged use, causing the grippers to fall off during lifting of ton bags, resulting in damage to the ton bags. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a gripper mechanism for ton packaging trucks.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A gripper mechanism for a ton packaging truck includes a servo electric cylinder, a connecting plate is mounted on the top of the servo electric cylinder assembly, gripper assemblies are symmetrically rotatably arranged on the bottom surface of the bottom seat of the servo electric cylinder assembly, and an anti-drop mechanism is mounted on the bottom seat of the servo electric cylinder assembly.
[0007] The anti-fall mechanism includes a limiting seat, which is installed on the bottom surface of the base of the servo cylinder assembly, and a pull frame is movably connected to one side of the limiting seat.
[0008] The pulling frame includes a pull rod, and hook plates are symmetrically fixedly connected to both ends of the pull rod body. The hook plates are symmetrically arranged on one side of the limiting seat.
[0009] Furthermore, in a preferred configuration, the limiting seat includes a limiting plate located below the servo cylinder assembly. Mounting plates are symmetrically and vertically fixedly connected to both sides of the limiting plate. The mounting plates are installed at the bottom of the servo cylinder assembly base and are located on both sides of the gripper assembly.
[0010] In addition, a preferred structure is that a protrusion is fixedly connected to the side wall of the mounting plate away from the limiting plate, a telescopic rod is provided on the surface of one side wall of the protrusion, the end of the telescopic rod away from the protrusion is fixedly connected to the surface of the hook plate, and a spring is provided outside the telescopic rod.
[0011] Furthermore, in a preferred configuration, one end of the spring is fixedly connected to the surface of the protrusion, and the other end of the spring, away from the protrusion, is fixedly connected to the surface of the hook plate.
[0012] Furthermore, in a preferred configuration, the servo electric cylinder assembly includes a piston rod at the output end of the servo electric cylinder.
[0013] Furthermore, in a preferred configuration, the gripper assembly includes a connecting block, a piston rod is fixedly connected to the center of the top surface of the connecting block, second connecting arms are symmetrically rotatably connected to both sides of the connecting block, a first connecting arm is rotatably mounted on the second connecting arms located above both sides of the connecting block, and the other end of the first connecting arm away from the second connecting arm is rotatably connected to the bottom seat of the servo electric cylinder assembly.
[0014] In addition, a preferred structure is that a gripper bar is rotatably provided at the end of the second connecting arm away from the connecting block, a first limiting block is symmetrically provided at the bottom of one gripper bar, and a second limiting block is provided at the bottom of the other gripper bar, and the second limiting block can be inserted into the gap between the first limiting blocks.
[0015] The beneficial effects of this utility model are as follows: the ton bag is lifted by the set gripper assembly, and the anti-fall mechanism can effectively prevent the ton bag from falling quickly when it is being loaded onto the vehicle. If the ton bag falls due to loosening of the gripper assembly due to long-term use, its hook plate is located below the first limit block and the second limit block. In this way, the ton bag can be effectively caught when it falls, thereby preventing the ton bag from falling quickly and being discovered by the operator. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of the gripper mechanism;
[0017] Figure 2 This is a schematic diagram of the disassembled gripper mechanism.
[0018] Figure 3 A schematic diagram of the anti-fall mechanism;
[0019] Figure 4 This is a schematic diagram of the limiting seat.
[0020] Figure 5 Schematic diagram of the gripper assembly Figure 1 ;
[0021] Figure 6 Schematic diagram of the gripper assembly Figure 2 .
[0022] In the diagram: 1 Servo electric cylinder assembly, 11 Piston rod, 2 Connecting plate, 3 Gripper assembly, 31 First connecting arm, 32 Connecting block, 33 Second connecting arm, 34 Gripper rod, 35 First limiting block, 36 Second limiting block, 4 Anti-fall mechanism, 41 Limiting seat, 411 Mounting plate, 412 Protrusion, 413 Telescopic rod, 414 Limiting plate, 42 Pulling frame, 421 Pull rod, 422 Hook plate, 5 Spring. Detailed Implementation
[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0024] Reference Figure 1-6 A gripper mechanism for a ton bag truck includes 1. a servo electric cylinder 1. A connecting plate 2 is installed on the top of the servo electric cylinder assembly 1. A gripper assembly 3 is symmetrically rotated on the bottom surface of the bottom seat of the servo electric cylinder assembly 1. An anti-drop mechanism 4 is installed on the bottom seat of the servo electric cylinder assembly 1. The anti-drop mechanism 4 can effectively protect the ton bag from falling down suddenly.
[0025] The anti-fall mechanism 4 includes a limiting seat 41, which is installed on the bottom surface of the base of the servo cylinder assembly 1. A pulling frame 42 is movably connected to one side of the limiting seat 41. The pulling frame 42 includes a pull rod 421. Hook plates 422 are symmetrically fixedly connected to the ends of both sides of the pull rod 421. The hook plates 422 are symmetrically arranged on one side of the limiting seat 41 and can hook objects that fall from between the gripper assemblies 3.
[0026] Furthermore, the limiting seat 41 includes a limiting plate 414, which is located below the servo electric cylinder assembly 1. Mounting plates 411 are symmetrically and vertically fixedly connected to both sides of the limiting plate 414. The mounting plates 411 are installed at the bottom of the servo electric cylinder assembly 1 and are located on both sides of the gripper assembly 3. The limiting seat 41 restricts the range of motion of the connecting block 32.
[0027] In addition, a protrusion 412 is fixedly connected to the side wall of the mounting plate 411 away from the limiting plate 414. A telescopic rod 413 is provided on the surface of one side wall of the protrusion 412. The end of the telescopic rod 413 away from the protrusion 412 is fixedly connected to the surface of the hook plate 422. A spring 5 is provided outside the telescopic rod 413. One end of the spring 5 is fixedly connected to the surface of the protrusion 412, and the other end of the spring 5 away from the protrusion 412 is fixedly connected to the surface of the hook plate 422. Due to its elastic potential energy, the hook plate 422 can release its elastic potential energy and reset when the spring 5 is pulled.
[0028] Furthermore, the servo electric cylinder assembly 1 includes a piston rod 11 on the output end of the servo electric cylinder, which is used to drive the connecting block 32 to move vertically.
[0029] Meanwhile, the gripper assembly 3 includes a connecting block 32. A piston rod 11 is fixedly connected to the middle of the top surface of the connecting block 32. Second connecting arms 33 are symmetrically rotatably connected to both sides of the connecting block 32. A first connecting arm 31 is rotatably disposed on the second connecting arms 33 located above both sides of the connecting block 32. The other end of the first connecting arm 31 away from the second connecting arm 33 is rotatably connected to the bottom seat of the servo electric cylinder assembly 1. The second connecting arm 33 is used to connect the movable gripper rod 34.
[0030] Furthermore, a gripper bar 34 is rotatably mounted on the end of the second connecting arm 33 away from the connecting block 32. A first limiting block 35 is symmetrically arranged at the bottom of one gripper bar 34, and a second limiting block 36 is arranged at the bottom of the other gripper bar 34. The second limiting block 36 can be inserted into the gap between the first limiting blocks 35.
[0031] In this embodiment, the gripper mechanism is installed on the gantry frame via the connecting plate 2. When hoisting the ton bag, the servo electric cylinder assembly 1 drives the piston rod 11 to rise or fall, thereby causing the connecting block 32 to rise and fall. This, in conjunction with the first connecting arm 31 and the second connecting arm 33 on both sides, allows the gripper rods 34 on both sides to approach or move away, thus hoisting the ton bag. When the gripper rods 34 on both sides approach each other, the second limiting block 36 can be inserted between the first limiting blocks 35, so that the ton bag hoisted on it can rest on the first limiting block 36 and the second limiting block 36.
[0032] Furthermore, when hoisting the ton bag, when the strap suspended from the top of the ton bag passes between the first limit block 35 and the second limit block 36, the operator operates the anti-fall mechanism 4 to pull the pull rod 421, so that the hook plate 422 can move in conjunction with the telescopic rod 413, thereby facilitating the strap of the ton bag to pass through the hook plate 422. After releasing, the spring 5 releases its elastic potential energy, which allows the hook plate 422 to return to its original position.
[0033] During the hoisting process, when the ton bag is hoisted up, it is hooked by the first limiting block 35 and the second limiting block 36. If it falls, the hook plate 422 is located at the bottom and can effectively catch the ton bag, thus preventing the ton bag from falling quickly and being discovered by the operators.
[0034] In this invention, the ton bag is lifted by the clamping claw assembly 3. When the ton bag is being loaded, the anti-drop mechanism 4 can effectively prevent the ton bag from falling quickly. If the ton bag falls due to loosening of the clamping claw assembly 3 after long-term use, its hook plate 422 is located below the first limiting block 35 and the second limiting block 36. In this way, the ton bag can be effectively caught when it falls, thereby preventing the ton bag from falling quickly and being discovered by the operator.
[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A gripper mechanism for a ton packaging truck, comprising a servo electric cylinder assembly (1), characterized in that, The servo cylinder assembly (1) is equipped with a connecting plate (2) on the top, and a gripper assembly (3) is symmetrically rotated on the bottom surface of the bottom seat of the servo cylinder assembly (1). The bottom seat of the servo cylinder assembly (1) is equipped with an anti-fall mechanism (4). The anti-fall mechanism (4) includes a limiting seat (41), which is installed on the bottom surface of the bottom seat of the servo electric cylinder assembly (1). A pulling frame (42) is movably connected to one side of the limiting seat (41). The pull frame (42) includes a pull rod (421), and hook plates (422) are symmetrically fixedly connected to the ends of both sides of the pull rod (421). The hook plates (422) are symmetrically arranged on one side of the limiting seat (41).
2. The gripper mechanism for a ton packaging vehicle according to claim 1, characterized in that, The limiting seat (41) includes a limiting plate (414), which is located below the servo electric cylinder assembly (1). The limiting plate (414) has mounting plates (411) symmetrically and vertically fixedly connected on both sides of the plate body. The mounting plates (411) are installed at the bottom of the servo electric cylinder assembly (1) and are located on both sides of the gripper assembly (3).
3. A gripper mechanism for a ton packaging vehicle according to claim 2, characterized in that, A protrusion (412) is fixedly connected to the side wall of the mounting plate (411) away from the limiting plate (414). A telescopic rod (413) is provided on the surface of one side wall of the protrusion (412). The end of the telescopic rod (413) away from the protrusion (412) is fixedly connected to the surface of the hook plate (422), and a spring (5) is provided on the outside of the telescopic rod (413).
4. A gripper mechanism for a ton packaging vehicle according to claim 3, characterized in that, One end of the spring (5) is fixedly connected to the surface of the protrusion (412), and the other end of the spring (5) away from the protrusion (412) is fixedly connected to the surface of the hook plate (422).
5. A gripper mechanism for a ton packaging vehicle according to claim 1, characterized in that, The servo electric cylinder assembly (1) includes a piston rod (11) on the output end of the servo electric cylinder.
6. A gripper mechanism for a ton packaging vehicle according to claim 1, characterized in that, The gripper assembly (3) includes a connecting block (32), a piston rod (11) is fixedly connected to the middle of the top surface of the connecting block (32), and second connecting arms (33) are symmetrically connected to both sides of the connecting block (32). A first connecting arm (31) is rotatably arranged on the second connecting arm (33) located above both sides of the connecting block (32). The other end of the first connecting arm (31) away from the second connecting arm (33) is rotatably connected to the bottom seat of the servo electric cylinder assembly (1).
7. A gripper mechanism for a ton packaging vehicle according to claim 6, characterized in that, The second connecting arm (33) is rotatably provided with a gripper rod (34) at the other end away from the connecting block (32). A first limiting block (35) is symmetrically provided at the bottom of one gripper rod (34), and a second limiting block (36) is provided at the bottom of the other gripper rod (34). The second limiting block (36) can be inserted into the gap between the first limiting blocks (35).