Ton bag gripper for ton bag unit

Abstract

The utility model provides a ton bag gripper for a ton bag unit, which is provided with a gripper body component, the gripper body component is arranged along a horizontal plane, the gripper body component is provided with at least two groups of gripper components, and in two adjacent groups of gripper components, one group is a fixed side hook component, and the other group is a movable side hook component. The fixed side hook assembly comprises a branch rotating mechanism and a hook body, and the hook body comprises a set of hooks capable of being opened and closed. The branch rotating mechanism drives the hook body to rotate in the horizontal direction. The ton bag angle steering device is reasonable in structural design, capable of conducting angle steering on the ton bags, low in requirement for lifting / lowering falling points of the adjacent ton bags, capable of being suitable for ton bag operation of bags with close falling points, wide in application range and good in economic prospect.

Description

Technical Field

[0001] The utility model relates to lifting equipment, in particular to the technical field of ton bags, in particular to a ton bag gripper for a ton bag unit. Background Art

[0002] When transporting powdery, granular, or blocky items, ton bags can be used as transport packaging containers. During lifting and transportation, a crane is required for hooking and moving.

[0003] At present, in the operation of ton bags, the existing cranes usually use an automatic ton bag grabbing sling as shown in CN219408988U, which includes a mounting frame, a sling frame is arranged on the mounting frame, a sling is arranged at the bottom of the sling frame, the sling includes a sling clamp and a ton bag clamp, the sling clamp includes two sling claws, the top of the sling claws is installed on the sling frame, the ton bag clamp includes two ton bag claws, the top of the ton bag claws is installed on the sling frame, the two sling claws are located between the two ton bag claws, and the sling frame is also equipped with a first driving mechanism for driving the two ton bag claws to open and close and a second driving mechanism for driving the two sling claws to open and close.

[0004] When the above-mentioned automatic bag grabbing sling is working, it controls the opening and closing of the bag hanging claws of the sling to complete the clamping and lifting of the bag hanging bag. The bag hanging claw cannot rotate independently, and cannot adapt to the ton bag operation that requires two adjacent bags to be turned 90 degrees synchronously. Even if the above-mentioned sling is designed with a rotating mechanism at the bag hanging claw to drive the bag hanging claw to rotate 90 degrees, since the opening direction of the bag hanging claws of each sling is consistent, after the bag hanging claws rotate 90 degrees, the bag hanging claws open on the same straight line. When the claws are opened, a position needs to be reserved to avoid interference between the two adjacent bag hanging claws during the opening and closing operations. There are requirements for the spacing between the clamping positions of the two bag hanging bags. When the landing points of the lifting / lowering of adjacent bag hanging bags are too close and exceed the required spacing for opening, the above-mentioned sling cannot be used. Utility Model Content

[0005] The technical problem to be solved by the utility model is: in order to overcome the shortcomings of the existing technology, the utility model provides a ton bag gripper for a ton bag unit, which can be effectively applied to the requirements for the angle of the ton bags, the need to turn and lower the ton bags, and the requirement for the spacing between adjacent ton bag landing points is relatively low, and the scope of application is wider.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a ton bag gripper for a ton bag unit, comprising a gripper body component, the gripper body component being arranged in a horizontal plane, the gripper body component having at least two groups of gripper components, of two adjacent groups of gripper components, one group is a fixed side hook component, and the other group is a movable side hook component; the fixed side hook component comprises a sub-rotation mechanism and a hook body, the hook body comprises a group of hooks that can be opened and closed, and the sub-rotation mechanism drives the hook body to rotate in the horizontal direction; the movable side hook component comprises a sub-rotation mechanism, a hook body and a sliding mechanism, the sliding mechanism drives the hook body to move towards and away from the hook body of the fixed side hook component in the horizontal direction, and the sub-rotation mechanism drives the hook body to rotate in the horizontal direction.

[0007] In the above scheme, the distance between two adjacent groups of gripper assemblies can be adjusted by setting the sliding mechanism. At the same time, the hook body of each group of gripper assemblies can be driven by the sub-rotation mechanism to rotate. In this way, in the process of packing bags, if the distance between adjacent bags is short, if the parallel hook bodies are opened at the same time, collision interference will occur. In this way, the hook body of one group of gripper assemblies is opened, and then it is rotated so that it forms a 90-degree angle with the opening and closing direction of the other group of hook bodies. In this way, the other group of hook bodies can be opened normally, and there will be no interference between the two.

[0008] On the basis of the above, the ton bag gripper also has a main rotating mechanism, which includes a main C-axis motor and a main slewing bearing. The output end of the C-axis motor is connected to a cylindrical gear, and the inner wall of the main slewing bearing has a tooth shape that meshes with the cylindrical gear. The main slewing bearing is driven by the C-axis motor to rotate in the horizontal direction, and the gripper body assembly is fixed on the lower end surface of the main slewing bearing. The main rotating mechanism can drive the gripper body assembly to perform an overall rotation operation.

[0009] Furthermore, the gripper body assembly includes a gripper mounting frame and a main slewing bearing connecting plate, the main slewing bearing connecting plate is fixed to the main slewing bearing at the top and to the gripper mounting frame at the bottom; a hook fixing plate is fixed to the hook body of the fixed side hook assembly, and the hook fixing plate is fixed to the lower end surface of the gripper mounting frame; a hook fixing plate is also fixed to the hook body of the movable side hook assembly, and the sliding mechanism includes a linear guide rail, a slider and a cylinder, the cylinder is fixed to the lower end surface of the gripper mounting frame, the slider is slidably arranged on the linear guide rail, the output end of the cylinder drives the slider to move along the linear slide rail, and the hook body of the movable side hook assembly is fixed to the lower end of the slider.

[0010] Furthermore, the sub-rotation mechanism includes a sub-rotation motor and a sub-swivel bearing, the output end of the sub-rotation motor is rotatably connected to a gear, the inner wall of the sub-swivel bearing has a tooth shape meshing with the gear, and the sub-rotation motor drives the hook body corresponding to the sub-rotation mechanism to rotate in the horizontal direction.

[0011] Preferably, the hook body includes a hook mounting bracket, a hook portion and a buckle plate portion, and the hook portion and the buckle plate portion are rotatably connected to the hook mounting bracket via a rotating shaft respectively. The hook mounting bracket is also provided with an opening and closing power mechanism corresponding to the hook portion and the buckle plate portion, and the opening and closing power mechanism drives the hook portion and the buckle plate portion to move toward each other to close and move away from each other to open.

[0012] Preferably, the opening and closing power mechanism includes an opening and closing cylinder, a floating joint, a square slide rail, a push plate and a connecting rod device, wherein the floating joint is connected to the output end of the opening and closing cylinder by transmission, the square slide rail is fixed on the hook mounting bracket along the movement direction of the floating joint, the push plate is slidably arranged on the push plate, and the push plate is fixed to the floating structure, and one end of the connecting rod device is hinged to the push plate and the other end is fixed to the end of the rotating shaft. When the opening and closing operation is required, the output power of the opening and closing cylinder drives the floating joint to move, and the floating joint drives the push plate to slide along the square slide rail. During the sliding process of the push plate along the square slide rail, the connecting rod device drives the rotating shaft to rotate to realize the operation of the hook part and the buckle plate part moving towards each other to close and moving away from each other to open.

[0013] Preferably, the rotating shaft is rotatably arranged on the hook mounting bracket, and the connecting rod device includes a first connecting rod and a second connecting rod, one end of the first connecting rod is hinged to the push plate, and the other end is hinged to the end of the second connecting rod, and the other end of the second connecting rod is fixed to the end of the rotating shaft.

[0014] The beneficial effect of the utility model is that the ton bag gripper for the ton bag unit provided by the utility model has a reasonable structural design, can perform angle steering on the ton bag, and at the same time has low requirements on the lifting / lowering landing points of adjacent ton bags. It can be used for ton bag operations with bags with relatively close landing points, has a wide range of applications, and has good economic prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 This is a front view of the optimal embodiment of the utility model after removing the outer cover of the hook assembly.

[0018] Figure 3 yes Figure 2 Cross-sectional view of BB.

[0019] Figure 4 yes Figure 2 Cross-sectional view of CC.

[0020] Figure 5 It is a three-dimensional diagram of the optimal embodiment of the utility model after removing the cover plate outside the opening and closing power mechanism.

[0021] Figure 6 yes Figure 5 A magnified schematic diagram of center A.

[0022] In the figure, 1, C-axis motor 2, main slewing bearing 3, main slewing bearing connecting plate 4, fixed side hook assembly 5, movable side hook assembly 6, hook part 7, buckle plate part 8, slider 9, linear guide 10, hook fixing plate 11, cylinder 12, sub-rotating motor 13, cylindrical gear 14, opening and closing cylinder 15, gear 16, sub-slewing bearing 17, first connecting rod 18, second connecting rod 19, rotating shaft 20, square slide rail 21, push plate 22, floating joint. DETAILED DESCRIPTION

[0023] The utility model is now described in further detail in conjunction with the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, so they only show the components related to the utility model, and the directions and references (for example, up, down, left, right, etc.) can only be used to help describe the features in the drawings. Therefore, the following specific embodiments are not adopted in a restrictive sense, and the scope of the subject matter claimed is limited only by the attached claims and their equivalents.

[0024] like Figure 1 The ton bag gripper for a ton bag unit shown is the first embodiment of the utility model.

[0025] The ton bag gripper comprises a gripper body component, which is arranged along a horizontal plane. The gripper body component comprises two groups of gripper components, wherein one group of adjacent groups of gripper components is a fixed side hook component 4 and the other group is a movable side hook component 5.

[0026] A hook fixing plate 10 is fixed on the hook body of the fixed side hook assembly 4, and the hook fixing plate 10 is fixed on the lower end surface of the gripper mounting frame. The fixed side hook assembly 4 includes a sub-rotation mechanism and a hook body, the hook body includes a group of hooks that can be opened and closed, and the sub-rotation mechanism drives the hook body to rotate in the horizontal direction.

[0027] A hook fixing plate 10 is also fixed to the hook body of the mobile side hook assembly 5. The sliding mechanism includes a linear guide rail 9, a slider 8 and a cylinder 11. The cylinder 11 is fixed to the lower end surface of the gripper mounting frame. The slider 8 is slidably arranged on the linear guide rail 9. The output end of the cylinder 11 drives the slider 8 to move along the linear slide rail, and the hook body of the mobile side hook assembly 5 is fixed to the lower end of the slider 8. The mobile side hook assembly 5 includes a sub-rotation mechanism, a hook body and a sliding mechanism. The sliding mechanism drives the hook body to move toward and away from the hook body of the fixed side hook assembly 4 in the horizontal direction, and the sub-rotation mechanism drives the hook body to rotate in the horizontal direction.

[0028] During operation, the sliding mechanism is used to adjust the distance between two adjacent groups of hand claw assemblies.

[0029] Assuming that the diameter of the bag is A, when each hook body is opened, the distance between the outermost edges of the hook body in the opening direction is B, and the distance between the centers of two adjacent bags is C, C≥A.

[0030] When the distance between adjacent bags on the ground is large, that is, when C>2B, and there is no requirement for the operating distance of ton bags, the operation can be carried out normally as required.

[0031] When there is a requirement for the landing spacing between adjacent bags, if the required landing spacing between adjacent bags is less than the sum of the opening and closing distances of the hook bodies of two adjacent hook assemblies, that is, C < 2B. Collision interference will occur when parallel hook bodies are opened at the same time. At this time, it is necessary to open the hook bodies of one set of gripper assemblies first, and the bags and ton bags on that side will fall to the ground, and then rotate the set of gripper assemblies so that it is at a 90-degree angle to the opening and closing direction of the other set of hook bodies. Then the other set of hook bodies is opened, and the bags and ton bags on that side will fall to the ground. Such operations can be performed according to the spacing requirements, and at the same time, both sets of hook bodies can effectively complete the landing operation of ton bags, and there will be no interference between the two sets of hook bodies.

[0032] Embodiment 2:

[0033] like Figure 2 and Figure 3 The ton bag gripper for a ton bag unit shown is the second embodiment of the present utility model. Based on the first embodiment, the second embodiment further has a main rotating mechanism for driving the gripper body assembly to perform an overall rotating operation.

[0034] In the second embodiment, the gripper body assembly includes a gripper mounting frame and a main slewing bearing connecting plate 3. The main slewing bearing connecting plate 3 is fixed to the main slewing bearing 2 at the top and fixed to the gripper mounting frame at the bottom.

[0035] The main rotating mechanism includes a main C-axis motor 1 and a main slewing bearing 2. The output end of the C-axis motor 1 is connected to a cylindrical gear 13, and the inner wall of the main slewing bearing 2 has a tooth shape that meshes with the cylindrical gear 13. The main slewing bearing 2 is driven by the C-axis motor 1 to rotate in the horizontal direction, and the gripper body assembly is fixed on the lower end surface of the main slewing bearing 2. The main rotating mechanism can drive the gripper body assembly to perform an overall rotation operation.

[0036] like Figure 2 and Figure 4 As shown, the rotation of the hook bodies in the two groups of hand claw assemblies is realized by the sub-rotation mechanism. Based on the structure of the main rotation mechanism, the sub-rotation mechanism can adopt a structural design similar to that of the main rotation mechanism.

[0037] Specific:

[0038] The sub-rotation mechanism includes a sub-rotation motor 12 and a sub-slewing bearing 16. The output end of the sub-rotation motor 12 is rotatably connected to a gear 15. The inner wall of the sub-slewing bearing 16 has a tooth shape that meshes with the gear 15. The sub-rotation motor 12 drives the hook body corresponding to the sub-rotation mechanism to rotate in the horizontal direction.

[0039] The hook body includes a hook mounting bracket, a hook portion 6 and a pinch plate portion 7. The hook mounting bracket is rotatably connected with a rotating shaft 19, wherein the hook portion 6 is fixed to one side of the rotating shaft 19, and the pinch plate portion 7 is fixed to the other side of the rotating shaft 19. The hook mounting bracket is also provided with an opening and closing power mechanism corresponding to the hook portion 6 and the pinch plate portion 7, and the opening and closing power mechanism drives the hook portion 6 and the pinch plate portion 7 to move toward each other to close and move away from each other to open.

[0040] Embodiment three:

[0041] like Figure 5 and Figure 6 The ton bag gripper for ton bag units shown is the third embodiment of the utility model. Based on the second embodiment, the third embodiment further designs the opening and closing power mechanism, uses the cylinder 11 to provide power, and realizes the closing movement of the hook part 6 and the buckle plate part 7 towards each other and the opening movement away from each other through the cooperation of the slide rail and the connecting rod device.

[0042] Specifically, the opening and closing power mechanism includes an opening and closing cylinder 14, a floating joint 22, a square slide rail 20, a push plate 21 and a connecting rod device. A cover plate is usually designed outside the opening and closing power mechanism to protect the internal parts. The floating joint 22 is transmission-connected to the output end of the opening and closing cylinder 14, the square slide rail 20 is fixed on the hook mounting bracket along the movement direction of the floating joint 22, the push plate 21 is slidably arranged on the push plate 21, and the push plate 21 is fixed to the floating structure, one end of the connecting rod device is hinged to the push plate 21, and the other end is fixed to the end of the rotating shaft 19. The connecting rod device includes a first connecting rod 17 and a second connecting rod 18, one end of the first connecting rod 17 is hinged to the push plate 21, and the other end is hinged to the end of the second connecting rod 18, and the other end of the second connecting rod 18 is fixed to the end of the rotating shaft 19.

[0043] The square slide rail 20 limits the movement direction of the push plate 21. Based on this limit, when an opening and closing operation is required, the opening and closing cylinder 14 outputs power to drive the floating joint 22 to move, and the floating joint 22 drives the push plate 21 to move, and the push plate 21 slides along the square slide rail 20 under the limit of the square slide rail 20. During the sliding process of the push plate 21, the first connecting rod 17 is driven to move, and the first connecting rod 17 drives the second connecting rod 18 to move. Since one end of the second connecting rod 18 is fixed to the rotating shaft 19, and the rotating shaft 19 is rotatably set on the hook mounting bracket, when the second connecting rod 18 moves, it drives the rotating shaft 19 to rotate synchronously, and the hook part 6 and the buckle plate part 7 installed on the rotating shaft 19 are rotated to open and close, thereby realizing the operation of the hook part 6 and the buckle plate part 7 moving toward each other to close and moving away from each other to open.

[0044] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A ton bag gripper for a ton bag unit, characterized by: The hand gripper body component is provided, wherein the hand gripper body component is arranged along a horizontal plane, and the hand gripper body component has at least two groups of hand gripper components, and of the two adjacent groups of hand gripper components, one group is a fixed side hook component (4) and the other group is a movable side hook component (5); The fixed-side hook assembly (4) comprises a sub-rotation mechanism and a hook body, wherein the hook body comprises a group of hooks that can be opened and closed, and the sub-rotation mechanism drives the hook body to rotate in a horizontal direction; The movable side hook assembly (5) comprises a sub-rotation mechanism, a hook body and a sliding mechanism. The sliding mechanism drives the hook body to move towards and away from the hook body of the fixed side hook assembly (4) in the horizontal direction. The sub-rotation mechanism drives the hook body to rotate in the horizontal direction.

2. A ton bag gripper for ton bag units as claimed in claim 1, characterized in that: The invention has a main rotating mechanism, which includes a main C-axis motor (1) and a main slewing bearing (2). The output end of the C-axis motor (1) is connected to a cylindrical gear (13). The inner wall of the main slewing bearing (2) has a tooth shape that meshes with the cylindrical gear (13). The main slewing bearing (2) is driven by the C-axis motor (1) to rotate in the horizontal direction. The gripper body assembly is fixed on the lower end surface of the main slewing bearing (2).

3. A ton bag gripper for ton bag units as claimed in claim 2, characterized in that: The gripper body assembly comprises a gripper mounting frame and a main slewing bearing connecting plate (3), wherein the main slewing bearing connecting plate (3) is fixed to the main slewing bearing (2) at the top and fixed to the gripper mounting frame at the bottom; A hook fixing plate (10) is fixed on the hook body of the fixed-side hook assembly (4), and the hook fixing plate (10) is fixed on the lower end surface of the gripper mounting frame; A hook fixing plate (10) is also fixed on the hook body of the movable side hook assembly (5), and the sliding mechanism comprises a linear guide rail (9), a slider (8) and a cylinder (11). The cylinder (11) is fixed on the lower end surface of the gripper mounting frame, and the slider (8) is slidably arranged on the linear guide rail (9). The output end of the cylinder (11) drives the slider (8) to move along the linear guide rail, and the hook body of the movable side hook assembly (5) is fixed on the lower end of the slider (8).

4. A ton bag gripper for ton bag units as claimed in claim 1, characterized in that: The sub-rotation mechanism comprises a sub-rotation motor (12) and a sub-slewing bearing (16); the output end of the sub-rotation motor (12) is rotatably connected to a gear (15); the inner wall of the sub-slewing bearing (16) has a tooth shape meshing with the gear (15); the sub-rotation motor (12) drives the hook body corresponding to the sub-rotation mechanism to rotate in the horizontal direction.

5. The ton bag gripper for ton bag unit according to claim 1, characterized in that: The hook body comprises a hook mounting bracket, a hook portion (6) and a buckle plate portion (7); the hook portion (6) and the buckle plate portion (7) are rotatably connected to the hook mounting bracket via a rotating shaft (19), respectively; the hook mounting bracket is also provided with an opening and closing power mechanism corresponding to the hook portion (6) and the buckle plate portion (7); the opening and closing power mechanism drives the hook portion (6) and the buckle plate portion (7) to move toward each other to close and move away from each other to open.

6. A ton bag gripper for ton bag units as claimed in claim 5, characterized in that: The opening and closing power mechanism comprises an opening and closing cylinder (14), a floating joint (22), a square slide rail (20), a push plate (21) and a connecting rod device. The floating joint (22) is transmission-connected to the output end of the opening and closing cylinder (14). The square slide rail (20) is fixed on the hook mounting bracket along the movement direction of the floating joint (22). The push plate (21) is slidably arranged on the push plate (21), and the push plate (21) is fixed to the floating structure. One end of the connecting rod device is hinged to the push plate (21), and the other end is fixed to the end of the rotating shaft (19).

7. A ton bag gripper for ton bag units as claimed in claim 6, characterized in that: The rotating shaft (19) is rotatably arranged on the hook mounting bracket, and the connecting rod device comprises a first connecting rod (17) and a second connecting rod (18), one end of the first connecting rod (17) is hinged to the push plate (21), and the other end is hinged to the end of the second connecting rod (18), and the other end of the second connecting rod (18) is fixed to the end of the rotating shaft (19).

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