Automatic device for grabbing and releasing ton bags

Abstract

The utility model discloses an automatic device for grabbing and releasing ton bags. The manipulator comprises a rack, a guide rail sliding block, a driving motor, a screw shaft, an upper connecting rod, a connecting rod, a sliding groove connecting rod, a two-tooth gripper and a three-tooth gripper. The gripper can be controlled by the driving motor to automatically open and close to grab, and has the advantages of being compact and simple in structure, easy to install, low in cost, safe, reliable, high in bearing capacity and the like. When the grippers are opened, the size between the two grippers is larger than the standard size of a ton bag and is about 1150mm, and when the grippers are closed, the two grippers can be meshed with each other, so that the ton bag can be effectively prevented from sliding off from the grippers, and the ton bag can be gripped firmly and safely; according to the utility model, the total 25000N load can be borne, the single-side gripper can bear the 12500N load, and the ton bag can be ensured not to slide off when the condition that the ton bag is hung on the single side of the gripper occurs.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical engineering and automation engineering technology, and specifically relates to an automated device for grabbing and releasing ton bags. Background Technology

[0002] BOOM (Monthly Net Bag) containers, widely used in industrial and logistics sectors, offer advantages such as high load capacity, convenient loading and unloading, and low cost. However, with the development of automated and intelligent logistics, some problems have gradually emerged in the gripping and handling of BOOM containers. Traditional manual gripping methods are not only labor-intensive and inefficient, but also prone to unstable gripping or damage to the packaging due to human error, and pose safety risks. Furthermore, the flexible straps on BOOM containers can easily become too close to the surface of the container during actual use, preventing the gripping mechanism from effectively lifting it. Existing BOOM gripping devices still need improvement in terms of automation, gripping accuracy, and adaptability, and generally suffer from complex structures and high costs. Therefore, developing a gripping mechanism that can operate stably in complex working environments, possesses a high degree of automation, and can adapt to different BOOM container gripping situations is of great significance for improving logistics efficiency and reducing safety hazards. Utility Model Content

[0003] In order to solve the above problems, the purpose of this utility model is to provide an automated device for grabbing and releasing ton bags.

[0004] To achieve the above objectives, the automated device for handling and releasing ton bags provided by this utility model includes a frame, a guide rail slider, a drive motor, a screw shaft, an upper connecting rod, a connecting rod, a sliding groove connecting rod, a two-tooth gripper, and a three-tooth gripper. The frame consists of an upper frame and a lower frame. The upper frame is square-tube shaped, with the inner surfaces of its front and rear ends recessed inwards to form vertical guide grooves. The lower frame consists of two parallel fixed plates, the upper ends of which are simultaneously connected to the front and rear ends of the bottom of the upper frame. The lower sides of the two fixed plates are connected to each other by a bolt. The guide rail slider is located inside the upper frame, with its front and rear ends sliding within the two vertical guide grooves. The upper end of the screw shaft is connected to the output shaft of the drive motor, and the lower end is connected to the guide rail. The middle part of the slider allows the guide rail slider to move up and down along the vertical guide groove under the drive of the drive motor; a groove is formed along the length of the upper middle part of the groove connecting rod; two groove connecting rods are clamped between two fixed plates, and their upper ends are respectively hinged to the two sides of the guide rail slider by bolts, and the two grooves are respectively clamped outside the two bolts located at the bottom of the fixed plate; two upper connecting rods are clamped between two fixed plates at the outer part of the two groove connecting rods, and their upper ends are respectively hinged to the left and right ends of the two fixed plates by bolts, and their lower ends are respectively hinged to the upper end of a connecting rod; the middle parts of the two-tooth gripper and the three-tooth gripper are respectively hinged to the lower ends of the two groove connecting rods, and their outer ends are respectively hinged to the lower ends of the two connecting rods, and the inner gripping teeth can be engaged together when gripping the ton bag sling.

[0005] The automated device for grabbing and releasing ton bags also includes a remote control that is wirelessly connected to the drive motor.

[0006] The drive motor is a linear screw motor.

[0007] The transverse cross-section of the guide rail slider is cross-shaped.

[0008] Compared with the prior art, the beneficial effects of this utility model are:

[0009] 1. This utility model can realize the automatic opening and closing of the gripper controlled by the drive motor, and has the characteristics of compact and simple structure, easy installation, low cost, safety and reliability, and strong load-bearing capacity;

[0010] 2. When the grippers in this utility model are open, the distance between the two grippers is larger than the standard size of the ton bag, approximately 1150mm. When closed, the two grippers can mesh with each other, effectively preventing the ton bag from slipping out. Therefore, the ton bag is gripped firmly and safely.

[0011] 3. This utility model can withstand a total load of 25,000N, and the single-sided gripper can withstand a load of 12,500N, which can ensure that the ton bag will not slip when it is hung on one side of the gripper. Attached Figure Description

[0012] Figure 1 A front view of the automated device for handling and releasing ton bags provided by this utility model;

[0013] Figure 2 Top view of the lower structure of the automated device for grabbing and releasing ton bags provided by this utility model;

[0014] Figure 3 A schematic diagram of the process of the automated device for grabbing and releasing ton bags provided by this utility model. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] like Figure 1-2 As shown, the automated device for handling ton bags provided by this utility model includes a frame 1, a guide rail slider 22, a drive motor 31, a screw shaft 32, an upper connecting rod 41, a connecting rod 42, a sliding groove connecting rod 43, a two-tooth gripper 44, and a three-tooth gripper 45. The frame 1 consists of an upper frame and a lower frame. The upper frame is a square tube, with the inner surfaces of its front and rear ends recessed inwards to form a vertical guide groove 21. The lower frame consists of two parallel fixed plates, the upper ends of which are simultaneously connected to the front and rear ends of the bottom of the upper frame. The lower sides of the two fixed plates are connected to each other by a bolt. The guide rail slider 22 is located inside the upper frame, with its front and rear ends sliding within the two vertical guide grooves 21. The upper end of the screw shaft 32 is connected to the output shaft of the drive motor 31, and the lower end is connected to the guide rail slider 22. In the middle of 2, under the drive of the drive motor 31, the guide rail slider 22 can move up and down along the vertical guide groove 21; a groove is formed along its length at the upper middle position of the groove connecting rod 43; two groove connecting rods 43 are sandwiched between two fixed plates, and their upper ends are respectively hinged to the two sides of the guide rail slider 22 by bolts, and the two grooves are respectively sandwiched outside the two bolts located at the lower part of the fixed plate; two upper connecting rods 41 are sandwiched between two fixed plates located outside the two groove connecting rods 43, and their upper ends are respectively hinged to the left and right ends of the two fixed plates by bolts, and their lower ends are respectively hinged to the upper end of a connecting rod 42; the middle parts of the two-tooth gripper 44 and the three-tooth gripper 45 are respectively hinged to the lower ends of the two groove connecting rods 43, and their outer ends are respectively hinged to the lower ends of the two connecting rods 42, and the inner gripping teeth can be engaged together when gripping the ton bag sling.

[0017] The automated device for grabbing and releasing ton bags also includes a remote control that is wirelessly connected to the drive motor 31.

[0018] The drive motor 31 is a linear screw motor.

[0019] The transverse cross-section of the guide rail slider 22 is cross-shaped.

[0020] The working principle of the automated ton bag grabbing and releasing device provided by this utility model is described below:

[0021] like Figure 3 As shown, when it is necessary to grab a ton bag, the operator first fixes the frame 1 of this device to the end of the crane's wire rope or the robotic arm. Then, the crane or robotic arm is used to move this device above the ton bag to be grabbed. After that, the drive motor 31 is started using a remote control. The drive motor 31 controls the screw shaft 32 to move downward, which in turn drives the guide rail slider 22 to move downward along the vertical guide groove 21. At this time, the two sliding groove connecting rods 43 connected to both sides of the guide rail slider 22 will move to the outside of the frame 1 through the cooperation of the sliding groove and the bolt. This controls the two-tooth gripper 44 and the three-tooth gripper 45 to open outward, and the drive motor 31 is turned off. Then, using a crane or robotic arm, the device is lowered until the two-toothed gripper 44 and the three-toothed gripper 45 are positioned on the outer sides of the two ton bag slings. The drive motor 31 is restarted, controlling the screw shaft 32 to move upward, simultaneously moving the guide rail slider 22 upward along the vertical guide groove 21. At this time, the two sliding groove connecting rods 43 connected to both sides of the guide rail slider 22 move inward towards the frame 1 through the engagement of their upper sliding grooves and bolts. As a result, the two-toothed gripper 44 and the three-toothed gripper 45 close inward, finally gripping the ton bag sling, and the drive motor 31 is turned off. In addition, since the inner teeth of the two-toothed gripper 44 and the three-toothed gripper 45 can engage together when they close, it can effectively prevent the ton bag sling from slipping. After the device, along with the ton bag, is moved to the designated position by a crane or robotic arm, the drive motor 31 is started. The drive motor 31 controls the screw shaft 32 to move downward, which in turn drives the guide rail slider 22 to move downward along the vertical guide groove 21. At this time, the two sliding groove connecting rods 43 connected to both sides of the guide rail slider 22 will move to the outside of the frame 1 through the cooperation of the upper sliding groove and bolts. This controls the two-tooth gripper 44 and the three-tooth gripper 45 to open outward, put down the ton bag, and turn off the drive motor 31, thus completing the entire process of gripping and putting down the ton bag.

Claims

1. An automated device for handling and releasing ton bags, characterized in that: The automated device for handling ton bags includes a frame (1), a guide rail slider (22), a drive motor (31), a screw shaft (32), an upper connecting rod (41), a connecting rod (42), a sliding groove connecting rod (43), a two-tooth gripper (44), and a three-tooth gripper (45). The frame (1) consists of an upper frame and a lower frame. The upper frame is a square tube, with the inner surfaces of its front and rear ends recessed inwards to form a vertical guide groove (21). The lower frame consists of two parallel fixed plates, the upper ends of which are simultaneously connected to the front and rear ends of the bottom of the upper frame. The lower sides of the two fixed plates are connected to each other by a bolt. The guide rail slider (22) is located inside the upper frame, with its front and rear ends sliding within the two vertical guide grooves (21). The upper end of the screw shaft (32) is connected to the output shaft of the drive motor (31), and the lower end is connected to the guide rail slider (22). In the middle, under the drive of the drive motor (31), the guide rail slider (22) can move up and down along the vertical guide groove (21); a groove is formed along its length at the upper middle position of the groove connecting rod (43); the two groove connecting rods (43) are sandwiched between the two fixed plates, and their upper ends are respectively hinged to the two sides of the guide rail slider (22) by bolts, and the two grooves are respectively sandwiched outside the two bolts located at the lower part of the fixed plate; the two upper connecting rods (41) Located between two fixed plates on the outer side of two sliding connecting rods (43), the upper ends are respectively hinged to the left and right ends of the two fixed plates by bolts, and the lower ends are respectively hinged to the upper end of a connecting rod (42); the middle parts of the two-tooth gripper (44) and the three-tooth gripper (45) are respectively hinged to the lower ends of the two sliding connecting rods (43), and the outer ends are respectively hinged to the lower ends of the two connecting rods (42). The inner gripping teeth can be engaged together when gripping the ton bag sling.

2. The automated device for handling and releasing ton bags according to claim 1, characterized in that: The automated device for grabbing and releasing ton bags also includes a remote control that is wirelessly connected to the drive motor (31).

3. The automated device for handling and releasing ton bags according to claim 1, characterized in that: The drive motor (31) is a linear screw motor.

4. The automated device for handling and releasing ton bags according to claim 1, characterized in that: The transverse cross section of the guide rail slider (22) is cross-shaped.

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