Carton piece grabbing clamp

Abstract

The utility model discloses a paper box piece grabbing clamp which comprises a fixed plate, a fixed clamping plate, a movable clamping plate and a sponge suction cup, the fixed clamping plate and the movable clamping plate are arranged at the two opposite ends of the fixed plate respectively, a clamping plate driving air cylinder is arranged on the fixed plate, and a piston rod of the clamping plate driving air cylinder is fixedly connected with the movable clamping plate; the sponge suction cup is arranged on the fixed plate and located between the fixed clamping plate and the movable clamping plate, the sponge suction cup comprises a suction cup base and sponge located on the suction cup base, the sponge is located on the side, away from the fixed plate, of the suction cup base, and the sponge communicates with an air channel in the suction cup base; a vacuum pipe connector is further connected to the suction cup base and used for being connected with an external vacuumizing device. According to the paper box piece clamping device, paper box pieces can be prevented from falling off in the clamping process, the sizes of the paper box pieces cannot be limited, and the paper box pieces of various specifications can be clamped.

Description

Technical Field

[0001] The utility model belongs to the field of packaging equipment, in particular to a paper box sheet grabbing clamp. Background Art

[0002] In the packaging industry, before folding cartons, the folded carton sheets are stored in stacks. When needed, they are grabbed by a robotic arm, one stack at a time. To prevent any carton sheets from falling during gripping, there are generally two approaches: one is to grip the carton sheets from both sides along the thickness of the stack, while also supporting the entire stack from the bottom. This increases the structural complexity of the gripping device, as well as the weight and load of the clamp, requiring a larger robot. Furthermore, gripping on both sides and supporting the bottom limits the size of the carton sheets that the gripping device can grip, particularly the length, making it impossible to grip carton sheets of different sizes. The other approach is to grip the carton sheets from all four sides along both the thickness and width directions. This increases the structural complexity of the gripping device, as well as the weight and load of the clamp, requiring a larger robot. Furthermore, gripping on all four sides limits the width of the carton sheets, making it impossible to grip carton sheets of different sizes.

[0003] Therefore, it is necessary to study a gripping fixture that can prevent the carton pieces from falling during the gripping process, while not limiting the size of the carton pieces and meeting the gripping requirements of carton pieces of various specifications. Utility Model Content

[0004] The purpose of the utility model is to provide a carton sheet grabbing clamp, which, on the basis of double-sided clamping, adopts a suction cup to absorb the clamped carton sheet from above the carton sheet, thereby ensuring that the carton sheet is prevented from falling during the clamping process and will not limit the size of the carton sheet, thereby meeting the clamping requirements of carton sheets of various specifications.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a paper box sheet grabbing clamp, comprising a fixed plate, a fixed splint, a movable splint and a sponge suction cup, the fixed splint and the movable splint are respectively arranged at opposite ends of the fixed plate, and a splint driving cylinder is provided on the fixed plate, and the piston rod of the splint driving cylinder is fixedly connected to the movable splint; the sponge suction cup is arranged on the fixed plate and is located between the fixed splint and the movable splint, the sponge suction cup includes a suction cup base and a sponge located on the suction cup base, and the sponge is located on the side of the suction cup base away from the fixed plate, the sponge is connected to the airway on the suction cup base, and a vacuum pipe joint is also connected to the suction cup base for connecting to an external vacuum device.

[0006] A guide rod cylinder is provided on the fixed plate, and a telescopic end of the guide rod cylinder is fixedly connected to the suction cup base.

[0007] The guide rod cylinders are provided with two and are respectively connected to the two ends of the suction cup base.

[0008] The suction cup base is also connected to a vacuum pressure sensor.

[0009] The length of the sponge suction cup is smaller than the minimum distance between the movable clamping plate and the fixed clamping plate.

[0010] The fixed plate is further provided with a linear guide rail, and the movable clamping plate is in sliding cooperation with the linear guide rail.

[0011] The fixing plate is also provided with a robot connecting flange.

[0012] An electromagnet is also provided on the outer side of the fixing splint.

[0013] The beneficial effects achieved by the present invention are as follows: the present invention has a simple and compact structure. Based on a double-sided clamping fixture, a suction cup, in particular a sponge suction cup, is used from the top of the carton sheet stack to absorb the clamped carton sheet stack, thereby preventing the carton sheets from falling. Furthermore, a vacuum is created between the carton sheets, and the two clamping plates can more tightly clamp the carton sheets in the thickness direction, further preventing the carton sheets from falling. When the sponge suction cup is in use, the sponge contacts the carton sheets in a flexible manner, thereby preventing damage to the carton sheets. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 yes Figure 1 Schematic diagram of the structure on the back;

[0017] In the figure: 1. Cardboard sheet stack, 2. Fixed splint, 3. Movable splint, 4. Sponge suction cup, 5. Guide rod cylinder, 6. Robot connecting flange, 7. Electromagnet, 8. Splint drive cylinder, 9. Vacuum pressure sensor, 10. Vacuum pipe joint, 11. Linear guide. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0019] Example 1

[0020] like Figure 1-2 As shown, a cardboard sheet grabbing fixture includes a fixed plate, a fixed splint 2, a movable splint 3, and a sponge suction cup 4. The fixed splint 2 is fixedly connected to one end of the fixed plate, and the movable splint 3 slides in cooperation with a linear guide 11 provided at the other end of the fixed plate. The fixed plate is also fixedly mounted with a splint drive cylinder 8, and the piston rod of the splint drive cylinder 8 is connected to the movable splint 3. As the piston rod extends and retracts, the movable splint 3 moves along the linear guide 11, opening and closing relative to the fixed splint 2 to clamp or release the cardboard sheet stack 1 to be clamped. A sponge suction cup 4 is also provided between the fixed splint 2 and the movable splint 3. The sponge suction cup 4 includes a suction cup base and a sponge fixed to the suction cup base, and the sponge is fixed to the side of the suction cup base facing away from the fixed plate.

[0021] The fixed plate is also provided with two guide rod cylinders 5. The movable ends of the guide rod cylinders 5 are fixedly connected to the suction cup base of the sponge suction cup 4. As the movable ends of the guide rod cylinders 5 extend, the sponge suction cup 4 moves linearly as a whole, and its movement direction is perpendicular to the movement direction of the movable clamping plate 3. After the sponge suction cup 4 moves toward the carton sheet stack 1 clamped by the movable clamping plate 3 and the fixed clamping plate 2, it can absorb the carton sheet stack 1. A vacuum pipe joint 10 is also connected to the suction cup base of the sponge suction cup 4. The air inlet end of the vacuum pipe joint 10 is used to connect to an external vacuum pumping device. The vacuum pumping device vacuums the sponge suction cup 4 so that the sponge suction cup 4 can firmly absorb the carton sheet stack 1. The sponge suction cup 4 is also provided with a vacuum pressure sensor 9 to detect the gripping state of the sponge suction cup 4.

[0022] Furthermore, the length of the sponge suction cup 4 is smaller than the minimum distance between the movable splint 3 and the fixed splint 2 , so as to prevent the sponge suction cup 4 from interfering with the movement of the movable splint 3 .

[0023] Furthermore, a robot connection flange 6 is provided on the fixing plate for connecting to the robot arm to realize the movement of the device in space.

[0024] When the storage bin for storing the carton stack is a drawer-type storage bin, an electromagnet 7 is further provided on the outside of the fixed splint 2. When the electromagnet 7 is energized, it can be magnetically attracted to the drawer of the drawer-type storage bin, making it easy to pull out and push the drawer.

[0025] When the device is in use, the carton sheets to be clamped are stacked into a carton sheet stack 1 according to the design requirements. First, the movable clamp 3 is driven by the clamp driving cylinder 8 to move, and cooperate with the fixed clamp 2 to clamp the carton sheet stack 1 of a certain thickness from both sides of the thickness direction of the carton sheet stack 1. Then, the guide rod cylinder 5 drives the sponge suction cup 4 to move closer to the carton sheet stack 1, so that the sponge part of the sponge suction cup 4 is pressed against the side of the carton sheet stack 1. A high-flow vacuum pump connected to the vacuum pipe joint 10 is used to draw a vacuum, so that the sponge part is adsorbed on the side of the carton sheet stack 1. During this process, the vacuum pressure sensor 9 detects the gripping status of the device by detecting the pressure value of the sponge suction cup 4. After the device is moved to the placement position by the robot, the high-flow vacuum pump is turned off to release the adsorption of the sponge suction cup 4 on the carton sheet stack 1, and then the movable clamp 3 is driven to open by the clamp driving cylinder 8.

[0026] It should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A carton sheet grabbing fixture, characterized in that: It includes a fixed plate, a fixed splint, a movable splint and a sponge suction cup, the fixed splint and the movable splint are respectively arranged at opposite ends of the fixed plate, and a splint driving cylinder is provided on the fixed plate, and the piston rod of the splint driving cylinder is fixedly connected to the movable splint; the sponge suction cup is arranged on the fixed plate and is located between the fixed splint and the movable splint, the sponge suction cup includes a suction cup base and a sponge located on the suction cup base, and the sponge is located on the side of the suction cup base away from the fixed plate, the sponge is connected to the airway on the suction cup base, and a vacuum pipe joint is also connected to the suction cup base for connecting to an external vacuum device.

2. A carton sheet grabbing fixture according to claim 1, characterized in that: A guide rod cylinder is provided on the fixed plate, and a telescopic end of the guide rod cylinder is fixedly connected to the suction cup base.

3. A carton sheet grabbing fixture according to claim 2, characterized in that: The guide rod cylinders are provided with two and are respectively connected to the two ends of the suction cup base.

4. The carton sheet grabbing fixture according to claim 1, characterized in that: The suction cup base is also connected to a vacuum pressure sensor.

5. The carton sheet grabbing fixture according to claim 1, characterized in that: The length of the sponge suction cup is smaller than the minimum distance between the movable clamping plate and the fixed clamping plate.

6. The carton sheet grabbing fixture according to claim 1, characterized in that: The fixed plate is further provided with a linear guide rail, and the movable clamping plate is in sliding cooperation with the linear guide rail.

7. The carton sheet grabbing fixture according to claim 1, characterized in that: The fixing plate is also provided with a robot connecting flange.

8. The carton sheet grabbing fixture according to claim 1, characterized in that: An electromagnet is also provided on the outer side of the fixing splint.

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