Bulk bag loading gripper

Abstract

The utility model relates to a bulk bag loading gripper which comprises a cross beam. The tops of the two suspension arms are in sliding fit with the cross beam; the rotary assemblies are arranged at the positions of the suspension arms; the clamping jaw plate is connected with the rotating end of the rotating assembly; the top and one side edge of the clamping jaw plate are provided with the fixed clamping jaws; the bottom of the clamping jaw plate is provided with the lifting clamping jaw in a sliding fit mode. The push plate is connected with the clamping jaw plate through a shear fork assembly; when the lifting clamping jaw is inserted into the supporting plate containing the bulk bags, the lifting clamping jaw ascends, the supporting plate containing the bulk bags is separated from the ground at the moment, then the rotating assembly drives the clamping jaw plate to rotate by 180 degrees, in the rotating process, the fixed clamping jaw on the side direction of the clamping jaw plate plays a supporting role, the clamping jaw on the top rotates to the bottom to be used for supporting the bulk bags, and at the moment, the tray is still inserted into the lifting clamping jaw. And at the moment, the supporting plate does not support the goods, so that the goods can be conveniently taken out.

Description

Technical Field

[0001] The utility model relates to the field of automatic handling of goods, in particular to a gripper for bulk bags on a vehicle. Background Art

[0002] In the process of loading bulk bags onto a vehicle, a gripper is required for automatic handling. There are the following several problems in the handling process of the existing gripper:

[0003] 1. Before loading, the bulk bags are placed on a pallet. During the loading process, how to load only the bulk bags and separate the pallet from the bulk bags;

[0004] 2. During the loading process of the bulk bags, how to squeeze the bulk bags to reduce the occupied space and facilitate loading more bulk bags;

[0005] In summary, how to solve the above problems has become an urgent problem for researchers in this field. Content of the Utility Model

[0006] The technical problem to be solved by the utility model is: how to load only the bulk bags, separate the pallet from the bulk bags, and how to squeeze the bulk bags to facilitate loading;

[0007] To solve the above technical problems, the technical solution adopted by the utility model is:

[0008] The gripper for bulk bags on a vehicle of the utility model includes: a cross beam; two lifting arms, the tops of which are slidably arranged with the cross beam; a slewing assembly arranged at each lifting arm; a claw plate connected to the rotating end of the slewing assembly; a fixed claw, the top and one side of the claw plate are provided with the fixed claw; a lifting claw, the lifting claw is slidably arranged at the bottom of the claw plate; a push plate connected to the claw plate through a scissor assembly;

[0009] In this solution, the lifting arms are slidably arranged on the cross beam. The driving force of the lifting arms relative to the cross beam can be realized through the cooperation of a lead screw and a nut, or can be realized by adopting a gear and rack cooperation scheme. The driving device here is a conventional drive;

[0010] When the pallet with bulk bags is inserted by the lifting claw and the lifting claw rises, at this time the pallet of the bulk bags is separated from the ground. Subsequently, the slewing assembly drives the claw plate to rotate 180 degrees. During the rotation process, the fixed claw on the side of the claw plate plays a supporting role, and the claw at the top rotates to the bottom to support the bulk bags. At this time, the pallet is still inserted at the lifting claw and rotates to the top. At this time, the pallet does not support the goods, which is convenient for the goods to be taken out from the lifting claw;

[0011] After the bulk bag is transported to the unloading location driven by the crossbeam, the push plate unloads the bulk bag driven by the scissor assembly. Finally, the two lifting arms are moved between the bulk bags by the movement of the crossbeam. By approaching the two lifting arms and the relative approach of the two fixed claws, the bulk bag is squeezed, reducing the occupied space of the bulk cargo.

[0012] In addition, in this solution, no fixed claw is provided on the other side of the claw plate because support is not required during the rotation of the claw plate. Therefore, only two fixed claws are provided on one claw plate.

[0013] To prevent the bulk cargo from getting stuck in the gap of the fixed claw, the present utility model adopts that a support plate is provided on each of the fixed claws;

[0014] The support plate serves to support the bulk cargo.

[0015] To illustrate the specific structure of the slewing assembly, the present utility model adopts that the slewing assembly includes: a fixed plate; a slewing motor fixed on the fixed plate, and a gear is provided at the output end thereof; a turning plate, on one side surface of which a slewing bearing meshing with the gear is fixed, and on the other side surface of which the claw plate is fixed;

[0016] The fixed plate is fixedly connected to the frame body. A gear is provided at the output end of the slewing motor. When the motor is started, the slewing bearing is driven to slewing, and then the claw plate is driven to rotate.

[0017] When the lifting claw is inserted into the tray, to prevent the tray from slipping off the lifting claw, the present utility model adopts that a frame body is provided between the lifting arm and the slewing assembly; the fixed end of the slewing assembly is fixed on the frame body; the bottom of the frame body is hinged to the lifting arm; a double-shaft motor fixed at the lifting arm; two cam linkages correspondingly fixedly connected to the output ends of the double-shaft motor, and the other ends thereof are hinged to the top of the frame body;

[0018] In this solution, the frame is connected to the fixed end of the slewing assembly, the bottom of the frame is hinged to the lifting arm, and the two output shafts of the double-shaft motor are connected to the top of the frame through the cam linkages;

[0019] When the double-shaft motor is started, the cam linkages drive the frame and the claw plate to swing in the vertical plane direction. That is, in the normal state, the lifting claw is in a horizontal state. When the lifting claw is inserted into the pallet, the double-shaft motor is started, and the lifting claw is in an inclined state to prevent the pallet from slipping off the lifting claw.

[0020] To illustrate the specific structure of the lifting arm, the present utility model adopts that the lifting arm includes: a vertical portion; a horizontal portion provided at the top of the vertical portion; two relatively arranged slider seats fixed to the horizontal portion and located on both sides of the crossbeam; sliders provided at the slider seats and connected to the slide rails on the crossbeam;

[0021] In this solution, since the bulk bags carried by the jib are too heavy, in order to ensure the connection strength between the jib and the crossbeam, two opposite slider seats are provided on the horizontal part, slide rails are provided on both sides of the crossbeam, and the sliders on the slider seats are matched with the slide rails to increase the connection strength between the jib and the crossbeam.

[0022] How to realize the lifting movement of the lifting claw? In the present utility model, the lifting claw and the claw plate are connected by a linear guide combination; a lead screw, which is rotatably arranged between the claw plates and is controlled to rotate by a lifting motor; a nut, which is fixedly connected to the back of the lifting claw and is connected to the lead screw;

[0023] When the lifting motor rotates, it drives the lead screw to rotate, and then drives the nut to move along the lead screw, realizing the linear movement of the lifting claw.

[0024] The beneficial effects of the present utility model: The present utility model is a hand claw for bulk bag loading. When the pallet loaded with bulk bags is inserted by the lifting claw and the lifting claw rises, at this time, the pallet of the bulk bags is separated from the ground. Subsequently, the slewing assembly drives the claw plate to rotate 180 degrees. During the rotation process, the fixed claws on the side of the claw plate play a supporting role, and the claws at the top rotate to the bottom to support the bulk bags. At this time, the pallet is still inserted at the lifting claw and rotates to the top. At this time, the pallet does not support the goods, which is convenient for taking out the goods; when the bulk bags are transported to the unloading location by the crossbeam, the push plate drives the bulk bags to unload under the drive of the scissor assembly. Finally, through the movement of the crossbeam, the two jibs move to be located between the bulk bags. By the approach of the two jibs, the bulk bags are squeezed by the relative approach of the two fixed claws, reducing the occupied space of the bulk goods. Description of the Drawings

[0025] The following further describes the present utility model in conjunction with the drawings and embodiments.

[0026] Figure 1 It is a schematic structural diagram of the present utility model;

[0027] Figure 2 It is a schematic structural diagram of the push plate;

[0028] Figure 3 It is a schematic structural diagram of the present utility model with the components on one side of the claw plate omitted;

[0029] Figure 4 It is a schematic structural diagram of the present utility model with the components on one side of the claw plate omitted from another perspective;

[0030] In the figure: 1 - crossbeam, 2 - lifting arm, 21 - vertical part, 22 - horizontal part, 23 - slider seat, 24 - slider, 25 - slide rail, 3 - slewing assembly, 31 - fixing plate, 32 - slewing motor, 33 - turning plate, 4 - fixed claw, 41 - support plate, 5 - lifting claw, 6 - push plate, 7 - scissor assembly, 8 - claw plate, 9 - frame, 10 - double - shaft motor, 11 - cam link. Detailed implementation mode

[0031] Now, the present utility model will be further described in detail with reference to the attached drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic way, so they only show the components related to the present utility model.

[0032] As Figure 1 shown, the present utility model is a hand - claw for bulk - bag loader, including: a crossbeam 1; two lifting arms 2, the tops of which are slidably arranged with the crossbeam 1; a slewing assembly 3 arranged at each lifting arm 2; a claw plate 8 connected to the rotating end of the slewing assembly 3; a fixed claw 4, and the fixed claw 4 is arranged at the top and one side of the claw plate 8; a lifting claw 5, and the lifting claw 5 is slidably arranged at the bottom of the claw plate 8; a push plate 6 connected to the claw plate 8 through a scissor assembly 7;

[0033] In this solution, the lifting arm is slidably arranged on the crossbeam. The driving force of the lifting arm relative to the crossbeam can be realized through the cooperation of a lead screw and a nut, or can be realized by adopting a gear - rack cooperation scheme. The driving device here is a conventional scheme;

[0034] When the pallet with bulk bags is inserted by the lifting claw and the lifting claw rises, at this time, the pallet of the bulk bags is separated from the ground. Subsequently, the slewing assembly drives the claw plate to rotate 180 degrees. During the rotation process, the fixed claws on the side of the claw plate play a supporting role, and the claws at the top rotate to the bottom to support the bulk bags. At this time, the pallet is still inserted at the lifting claw and rotates to the top. At this time, the pallet does not support the goods, which is convenient for taking out the goods;

[0035] When the bulk bags are transported to the unloading location driven by the crossbeam, the push plate drives the bulk bags to unload through the scissor assembly. Finally, through the movement of the crossbeam, the two lifting arms move between the bulk bags. By the approach of the two lifting arms, the bulk bags are squeezed by the relative approach of the two fixed claws, reducing the occupied space of the bulk goods.

[0036] In addition, in this solution, no fixed claws are arranged on the other side of the claw plate, because during the rotation of the claw plate, support is not required. Therefore, only two fixed claws are arranged on one claw plate.

[0037] In order to prevent the bulk goods from getting stuck in the gaps of the fixed claws, the present utility model is provided with support plates 41 on the fixed claws 4;

[0038] The support plate serves to support the bulk goods.

[0039] As Figures 3 - 4 shown, in order to illustrate the specific structure of the slewing assembly, the present utility model adopts that the slewing assembly 3 includes: a fixing plate 31; a slewing motor 32, which is fixed on the fixing plate 31 and has a gear arranged at its output end; a turning plate 33, one side surface of which is fixed with a slewing bearing meshing with the gear, and the other side surface of which is fixed with the claw plate 8;

[0040] The fixing plate is fixedly connected to the frame body. A gear is arranged at the output end of the slewing motor. When the motor starts, it drives the slewing bearing to slewing, and then drives the claw plate to rotate.

[0041] As Figures 3 - 4 shown, when the lifting claw is inserted into the tray, in order to prevent the tray from slipping off the lifting claw, the present utility model adopts that a frame body 9 is arranged between the lifting arm 2 and the slewing assembly 3; the fixed end of the slewing assembly 3 is fixed on the frame body 9; the bottom of the frame body 9 is hinged to the lifting arm 2; a double-shaft motor 10, which is fixed at the lifting arm 2; two cam linkages 11, which are correspondingly fixedly connected to the output ends of the double-shaft motor 10, and the other ends of which are hinged to the top of the frame body 9;

[0042] In this solution, the frame is connected to the fixed end of the slewing assembly. The bottom of the frame is hinged to the lifting arm. The two output shafts of the double-shaft motor are connected to the top of the frame through the cam linkages;

[0043] When the double-shaft motor starts, the cam linkages drive the frame and the claw plate to swing in the vertical plane direction. That is, in the normal state, the lifting claw is in a horizontal state. When the lifting claw is inserted into the pallet, the lifting claw is in an inclined state to prevent the pallet from slipping off the lifting claw.

[0044] As Figures 1 - 4 shown, in order to illustrate the specific structure of the lifting arm, the present utility model adopts that the lifting arm 2 includes: a vertical portion 21; a horizontal portion 22, which is arranged at the top of the vertical portion 21; two oppositely arranged slider seats 23, which are fixed to the horizontal portion 22 and are located on both sides of the cross beam 1; sliders 24, which are arranged at the slider seats 23 and are connected to the slide rails 25 on the cross beam 1;

[0045] In this solution, since the bulk bag carried by the lifting arm is too heavy, in order to ensure the connection strength between the lifting arm and the cross beam, two oppositely arranged slider seats are provided on the horizontal portion, slide rails are arranged on both sides of the cross beam, and the sliders on the slider seats are matched with the slide rails to increase the connection strength between the lifting arm and the cross beam.

[0046] How to achieve the lifting movement of the lifting claw, the present utility model adopts a connection between the lifting claw 5 and the claw plate 8 through a linear guide combination; a lead screw, which is rotatably arranged between the claw plates 8 and is controlled to rotate by a lifting motor; a lead nut, which is fixedly connected to the back of the lifting claw 5 and is connected to the lead screw;

[0047] When the lifting motor rotates, it drives the lead screw to rotate, and then drives the lead nut to move along the lead screw, realizing the linear movement of the lifting claw.

[0048] Taking the above ideal embodiments of the present utility model as an inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. Bulk bag loading gripper, characterized in that: include: beam; Two hanging arms, the tops of which are slidably mounted on the cross beam; A slewing assembly, which is arranged at each of the booms; A claw plate connected to the rotating end of the rotary assembly; A fixed claw, the top and one side of the claw plate are provided with the fixed claw; A lifting claw, the bottom of the claw plate is slidably provided with the lifting claw; A push plate is connected with the claw plate through a scissor-fork assembly.

2. The bulk bag loading gripper according to claim 1, characterized in that: The fixed claws are all provided with support plates.

3. The bulk bag loading gripper according to claim 1, characterized in that: The rotary assembly comprises: Fixed plate; A rotary motor, which is fixed on the fixed plate and has a gear at its output end; The flip plate has a slewing bearing meshed with the gear fixed on one side thereof, and the claw plate fixed on the other side thereof.

4. The bulk bag loading gripper according to claim 1, characterized in that: A frame is provided between the boom and the slewing assembly; The fixed end of the swivel assembly is fixed on the frame; The bottom of the frame is hinged to the boom; A dual-axis motor fixed to the boom; Two cam connecting rods are fixedly connected to the output ends of the dual-axis motor respectively, and the other ends thereof are hinged to the top of the frame.

5. The bulk bag loading gripper according to claim 1, characterized in that: The boom comprises: vertical part; a horizontal portion disposed on top of the vertical portion; Two oppositely arranged sliding block seats, which are fixed to the horizontal portion and located on both sides of the crossbeam; A sliding block is arranged at the sliding block seat and connected with the sliding rail on the crossbeam.

6. The bulk bag loading gripper according to claim 1, characterized in that: The lifting claw is connected to the claw plate via a linear rail combination; A screw rod, which is rotatably arranged between the claw plates and is controlled to rotate by a lifting motor; A nut is fixedly connected to the back of the lifting claw and is connected to the screw rod.

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