Grabbing clamp

Abstract

The embodiment of the utility model provides a grabbing clamp. The grabbing clamp comprises a connecting plate connected with a moving assembly in a hinged mode and at least one set of grabbing assembly assembled on the connecting plate. The grabbing assembly comprises a mounting frame group, a fixed bottom plate connected to the bottom of the mounting frame group, and glue grabbing assemblies oppositely arranged on the mounting frame group; a height adjusting plate is arranged between the fixed bottom plate and the mounting frame group, and a plurality of rows of pause nails are arranged at the bottom of the fixed bottom plate; each glue grabbing assembly comprises a claw hinged to the mounting frame group, and a driving assembly for driving the claw to rotate; the inner side face of each hook claw is provided with an anti-cutting plane, and the anti-cutting planes of the two hook claws are opposite to each other. According to the film grabbing device, films in different forms are stably grabbed, the grabbing success rate is increased, and cutting damage to the films is reduced.

Description

Technical Field

[0001] This application relates to the field of film gripping technology, and more particularly to a gripping fixture. Background Technology

[0002] The film produced by the internal mixer is stacked onto a pallet by a sheet stacker on a glue cooling line, and then transferred to the film cutting equipment. The ends of the film are manually fed to the cutting equipment, where they are cut to the weight set in the formula before being fed back into the internal mixer. Currently, the process of feeding the film ends to the film cutting equipment is not automated. The key issue is that the film has various states, including tilted to the left, tilted to the right, stuck together, and concave, etc. Ordinary clamps cannot accommodate the irregularities of the film, and the existing gripping depth cannot be adjusted for different film thicknesses, easily tearing the film and reducing the success rate of gripping. Summary of the Invention

[0003] The purpose of this utility model application is to provide a gripping fixture to improve the film gripping effect.

[0004] This application provides a gripping fixture for gripping film with a moving component. The gripping fixture includes: a connecting plate hinged to the moving component, and at least one set of gripping components mounted on the connecting plate; wherein...

[0005] The gripping assembly includes: a mounting frame assembly, a fixed base plate connected to the bottom of the mounting frame assembly, and a gripping adhesive assembly disposed opposite to the mounting frame assembly;

[0006] A height adjustment plate is provided between the fixed base plate and the mounting frame assembly, and multiple rows of nails are provided at the bottom of the fixed base plate;

[0007] Each adhesive gripping assembly includes a claw hinged to the mounting bracket assembly and a drive assembly for rotating the claw; the inner surface of each claw has a cut-resistant plane, and the cut-resistant planes of two claws face away from each other.

[0008] In the above technical solution, the moving component is connected by a hinge, which adaptively adjusts the gripping angle for films of different shapes; a height adjustment plate is provided to adjust the height of the fixed base plate for films of different thicknesses; multiple rows of pins on the fixed base plate provide positioning after the film is inserted, preventing slippage between the film and the hook that could cause unstable gripping; at the same time, the anti-cutting surface on the hook prevents the film from being cut; it is suitable for various sizes of film, improves the success rate of gripping, and solves the problem of the film falling after gripping.

[0009] In one specific implementation, the connecting plate has multiple sets of mounting holes along its length, and the gripping component is detachably and fixedly connected to any set of mounting holes.

[0010] In one specific implementation, the side of the connecting plate facing away from the gripping assembly is fitted with a multi-directional rotating element for hinged connection of the moving assembly.

[0011] In one specific implementation, the two ends of the fixed base plate are provided with baffles for engaging with corresponding hooks to press the film.

[0012] In one specific implementation scheme, each baffle plate is provided with a chamfer that matches the corresponding anti-cutting plane.

[0013] In one specific implementation, the two hooks rotate in opposite directions.

[0014] In one specific implementation, the drive assembly includes: a cylinder telescopic assembly mounted on the mounting bracket assembly, and a connecting rod bushing hinged to the cylinder telescopic assembly; wherein...

[0015] The connecting rod bushing is equipped with at least two hooks.

[0016] In one specific implementation, each of the grasping components is provided with a diffuse reflective photoelectric switch. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the gripping fixture provided in an embodiment of this application.

[0018] Figure 2 This is a side view of the gripping fixture provided in an embodiment of this application.

[0019] Figure 3 This is a schematic diagram of the structure of the gripper provided in an embodiment of this application.

[0020] Figure 4 This is a front view of the gripper provided in an embodiment of this application. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this application clearer, the application will now be described in further detail with reference to the accompanying drawings.

[0022] It should be noted that, unless otherwise defined, the technical or scientific terms used in one or more embodiments of this specification should have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar words used in one or more embodiments of this specification do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] To facilitate understanding of the gripping fixture provided in this application embodiment, its application scenario is first described. The gripping fixture provided in this application embodiment is used in film gripping. Existing film gripping technologies cannot adjust for various film shapes, the gripping depth is mostly uniform, causing significant damage to the film, and the gripping performance is unstable. Therefore, this application embodiment provides a gripping fixture that works in conjunction with a moving component to grip film, improving the gripping effect.

[0024] During film gripping, a moving component (robotic arm) works in conjunction with a gripping fixture to perform the film gripping operation. In specific setups, the flexible, multi-directional rotating moving component sequentially grips the films on the tray and places them onto the conveyor belt of the cutting equipment, achieving automated gripping. However, films come in various shapes and sizes: some are tilted to the left, some to the right, some are stuck together, some are concave, etc.; different films have different thicknesses—thinner films are easier to grip multiple layers of film, while thicker films may be difficult to grip; furthermore, there are risks such as film tearing and falling, reducing the success rate of gripping.

[0025] Therefore, the gripping fixture provided in this application embodiment has a multi-directional bonding film and is adjustable for films of different thicknesses. The gripping fixture will be described in detail below with specific examples.

[0026] refer to Figure 1 As shown, Figure 1 A schematic diagram of the gripping fixture provided in an embodiment of this application is shown; Figure 2 A side view of the gripping fixture provided in an embodiment of this application is shown. The gripping fixture includes a connecting plate 2, which serves as a connecting plate for hinged connection of a moving component. The moving component uses a robotic arm to achieve multi-directional rotation, thereby facilitating the sequential placement of film sheets onto the conveyor belt of the cutting equipment for precise transfer.

[0027] To achieve angular alignment between the moving component and the connecting plate 2, enabling it to adaptively fit different shapes of films, this application employs a multi-directional rotating component 1 mounted on the upper surface of the connecting plate 2. For example, this multi-directional rotating component 1 is a universal joint (cross coupling). When the moving component drives the gripping component 3 on the connecting plate 2 to be positioned above the film, downward pressure adjusts the fit between the gripping component 3 and the film, causing the universal joint to rotate accordingly. This allows for adaptive adjustment for various film shapes. Furthermore, multiple gripping components 3 are connected to the connecting plate 2 via steel wire ropes 5 to prevent safety accidents caused by fixation failure.

[0028] The connecting plate 2 in this application is provided with at least one set of gripping components 3; for example, the connecting plate 2 is provided with two sets of gripping components 3, both sets of gripping components 3 are detachably connected to the connecting plate 2 through mounting holes, and the positions of the two sets of gripping components 3 are adjustable, and various forms such as symmetrical distribution and offset distribution can be achieved by installing them in different mounting holes; of course, it should be understood that when gripping larger films, four sets, six sets, or other numbers of gripping components 3 can be set, and when gripping smaller films, one set of gripping components 3 can be set.

[0029] Each set of gripping components 3 in this application has the same structural form. Each set of gripping components 3 includes: a mounting frame assembly 32; the mounting frame assembly 32 adopts a frame structure and is detachably fixedly connected to the connecting plate 2. Adhesive gripping components are arranged opposite to each other on the mounting frame assembly 32; the two adhesive gripping components can be distributed in a cross-shaped distribution or a opposite distribution, and the purpose of pressing and fixing the adhesive sheet is achieved by driving the hooks 33 in opposite directions.

[0030] Specifically, each gripping assembly includes a hook 33 hinged to the mounting bracket assembly 32, and a drive assembly for rotating the hook 33; the inner surface of each hook 33 has a cut-resistant surface 332, and the cut-resistant surfaces of the two hooks 33 face away from each other. Figure 3 and Figure 4 As shown, both claws 33 are spiral claws with a tip 331 for inserting the film. To prevent cutting the film, each claw 33 is designed with an inner anti-cutting plane 332 and a chamfered edge, so it does not need to completely penetrate the film, even for thicker films. The two claws 33 rotate in opposite directions.

[0031] For example, one drive component drives the left hook 33 to rotate clockwise and insert into the film, while the other drive component drives the right hook 33 to rotate counterclockwise and insert into the film. The tips 331 of the two hooks 33 penetrate or reach into the film to achieve a relative tensile force on the film, thereby stably gripping the film that is soft and whose ends are easy to droop, and improving the gripping effect.

[0032] Specifically, the drive assembly includes: a cylinder telescopic assembly 31 mounted on the mounting frame 32, and a connecting rod sleeve 35 hinged to the cylinder telescopic assembly 31; wherein, at least two hooks 33 are mounted on the connecting rod sleeve 35. During the retraction of the cylinder telescopic assembly 31, it drives the corresponding connecting rod sleeve 35 to rotate. During the rotation, the connecting rod sleeve 35 drives the tip 331 of the hooks 33 to penetrate into or detach from the film, thereby achieving a relatively stable gripping and releasing operation.

[0033] In addition, in order to adjust for films of different thicknesses, this application avoids the problem that when the film surface is smooth, the hook 33 is prone to slipping under the thrust of the cylinder telescopic assembly 31 when it contacts the tilted film, and the hook 33 cannot penetrate the film. Also, the depth of the tip 331 cannot be adjusted, so it cannot be adjusted for different film thicknesses. When the film is thin, it is easy to grab multiple layers of film, and when the film is thick, there are various situations where it cannot be grabbed. Therefore, it is specifically proposed to install a fixed base plate 34 at the bottom of the mounting frame assembly 32.

[0034] Please refer to the above. Figure 1 and Figure 2 As shown, the fixed base plate 34 is located at the bottom of the mounting frame assembly 32, and multiple rows of pins 38 are arranged on the bottom surface of the fixed base plate 34. When the moving component drives the gripping clamp to adhere to the surface of the film, the adjusted downward pressure causes the multi-directional rotating component to change its angle, and the multiple rows of pins 38 gradually penetrate into the film, positioning the film on the surface. At the same time, a height adjustment plate 36 is provided between the fixed base plate 34 and the mounting frame assembly 32. This height adjustment plate 36 can be multi-layered, and the height can be adjusted accordingly when gripping films of different thicknesses, greatly satisfying the needs of films of different thicknesses.

[0035] In addition, the fixed base plate 34 has baffle plates 37 at both ends for engaging with the corresponding claws 33 to press the film. Each baffle plate 37 has a chamfer that mates with the corresponding anti-cutting plane 332. After the tip 331 of the claw 33 penetrates or extends into the interior of the film, continuous rotation causes the film to bulge and deform during the tightening process. The deformed film then adheres to the baffle plate 37 to fix the film, thereby achieving stable gripping.

[0036] It also includes a diffuse reflection photoelectric switch on each gripping component 3. When the gripping fixture is above the film, it follows the moving component and descends from a height at a relatively fast speed. When the diffuse reflection photoelectric switch, set at a suitable detection distance, detects the film, it decelerates and falls to contact the film. At this time, the gripping fixture continues to fall, exerting pressure on the film. The pins 38 on the fixed base plate 34 will pierce the film to prevent slippage between the gripping component and the film. At the same time, the connecting plate 2 equipped with the multi-directional rotating component 1 and the angle of the gripping component 3 will be passively rotated and press the film. The stopping condition is to reach a specific torque value or current value, which are control technologies known to those skilled in the art and will not be described in detail here. After the movement stops, the cylinder telescopic component 31 retracts, driving the connecting rod bushing 35 to rotate. At this time, the hook 33 fixed to the connecting rod bushing 35 rotates synchronously and pierces into the film, generating a squeezing force with the baffle plate 37 to press the film tightly. Then the gripping fixture is lifted along with the moving device and sent to the film cutting device.

[0037] In the above technical solution, the moving component is connected by a hinge, and the gripping angle is adaptively adjusted for different shapes of film. The height adjustment plate 36 is provided to adjust the height of the fixed base plate 34 for film of different thicknesses. The multi-row pins 38 provided on the fixed base plate 34 provide positioning after the film is inserted, preventing the film from slipping between the film and the hook 33 and causing unstable gripping. At the same time, the anti-cutting plane 332 provided on the hook 33 prevents the film from being cut. It is suitable for various specifications of film, improves the success rate of gripping, and solves the problem of falling after gripping.

[0038] One or more embodiments of this specification are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments of this specification should be included within the scope of protection of this disclosure.

[0039] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A gripping fixture for gripping film in conjunction with a moving component, characterized in that, The gripping fixture includes: a connecting plate hinged to the movable component, and at least one set of gripping components mounted on the connecting plate; wherein... The gripping assembly includes: a mounting frame assembly, a fixed base plate connected to the bottom of the mounting frame assembly, and a gripping adhesive assembly disposed opposite to the mounting frame assembly; A height adjustment plate is provided between the fixed base plate and the mounting frame assembly, and multiple rows of nails are provided at the bottom of the fixed base plate; Each adhesive gripping assembly includes a claw hinged to the mounting bracket assembly and a drive assembly for rotating the claw; the inner surface of each claw has a cut-resistant plane, and the cut-resistant planes of two claws face away from each other.

2. The gripping fixture according to claim 1, characterized in that, The connecting plate has multiple sets of mounting holes along its length, and the gripping component is detachably and fixedly connected to any set of mounting holes.

3. The gripping fixture according to claim 2, characterized in that, The side of the connecting plate facing away from the gripping assembly is equipped with a multi-directional rotating component for hinged connection of the moving assembly.

4. The gripping fixture according to claim 1, characterized in that, The fixed base plate has adhesive baffles at both ends for engaging with corresponding hooks to press the film.

5. The gripping fixture according to claim 4, characterized in that, Each baffle plate has a chamfer that matches the corresponding anti-cutting plane.

6. The gripping fixture according to claim 1, characterized in that, The two hooks rotate in opposite directions.

7. The gripping fixture according to claim 6, characterized in that, The drive assembly includes: a cylinder telescopic assembly mounted on the mounting bracket assembly, and a connecting rod bushing hinged to the cylinder telescopic assembly; wherein... The connecting rod bushing is equipped with at least two hooks.

8. The gripping fixture according to any one of claims 1 to 7, characterized in that, Each of the grasping components is equipped with a diffuse reflection photoelectric switch.

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