A gripper robot for a packaging line

By designing adjustable clamping plate components and limiting mechanisms, the problem of existing robotic arms being unable to adapt to multi-variety production has been solved, enabling precise gripping and limiting of items of different sizes, and improving the flexibility and safety of the production line.

CN224547385UActive Publication Date: 2026-07-24GUANGDONG ZHONGXU INTELLIGENT TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG ZHONGXU INTELLIGENT TECHNOLOGY CO LTD
Filing Date
2025-09-16
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The existing gripping robot has a fixed clamping plate size, which cannot adapt to items whose width exceeds the preset range, resulting in production line downtime, high maintenance costs, and difficulty in meeting the flexible needs of multi-variety mixed production lines.

Method used

It adopts an adjustable lateral length clamping plate assembly and limiting mechanism. The clamping plate spacing can be adjusted by cylinder drive and manual adjustment screw. Combined with the guide structure, it ensures the smooth movement of the limiting plate and adapts to the clamping and limiting of items of different sizes.

Benefits of technology

It enables precise gripping and positioning of items of different sizes, improving the flexibility and safety of the production line and reducing equipment wear and maintenance costs.

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Abstract

The utility model belongs to mechanical hand technical field discloses a kind of clamping mechanical hands of packaging production line, including assembly plate seat, vertical board and first cylinder, first cylinder is fixedly installed in the bottom of one end of assembly plate seat, first slide rail is fixedly installed in the bottom of one end of assembly plate seat, first slide rail is slidably installed with first sliding block, the bottom of first sliding block is fixedly installed with moving seat, one vertical board is fixed in the end of assembly plate seat close to first cylinder, another vertical board is fixed in the bottom of moving seat, clamping plate assembly is installed on two vertical boards, the piston rod end of first cylinder is fixedly connected with moving seat, the utility model is cooperated by first cylinder, first slide rail and moving seat, the spacing between two vertical boards can be adjusted in a large range;The thread transmission structure of screw rod and sliding block in clamping plate assembly, in combination with the manual adjusting mode of hand wheel, can accurately change the spacing between holding plates, can adapt to the clamping needs of different size articles, satisfy the multi-variety production requirement of packaging production line.
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Description

Technical Field

[0001] This utility model relates to the field of robotic arm technology, and in particular to a gripping robotic arm for a packaging production line. Background Technology

[0002] In modern industrial production, packaging production lines are becoming increasingly automated. As a key piece of equipment in these lines, the performance of gripping robots directly impacts their efficiency and quality. Gripping robots are primarily used to perform operations such as gripping, handling, and placing packaged items, and are widely used in packaging production processes across various industries, including food, pharmaceuticals, daily chemicals, and electronics.

[0003] Chinese utility model patent CN209396580U discloses a palletizing robot, including a top plate, clamping plates with both ends arranged downward along the length of the top plate, a first drive mechanism for driving the two clamping plates to move closer or further apart, and a hook plate for supporting the bottom of the goods and a second drive mechanism for driving the hook plate to support the bottom of the goods.

[0004] After the robotic arm drives two clamping plates to hold the goods tightly through the first drive mechanism, it then drives a hook plate through the second drive mechanism to support the bottom of the goods to ensure that the goods do not fall.

[0005] However, the clamping plate of the aforementioned robotic arm has a fixed size and cannot be extended laterally. When it is necessary to grip items whose width exceeds the preset range, the only solution is to replace the entire clamping device or readjust the mechanical structure. This not only extends production line downtime and increases labor maintenance costs, but also may cause wear and tear on mechanical parts due to frequent disassembly and assembly, affecting the equipment's lifespan. For packaging scenarios involving multi-variety mixed production lines, this fixed clamping plate structure severely restricts the production line's flexible operation capabilities and makes it difficult to meet the modern production demands of "rapid changeover."

[0006] Therefore, a gripping robot for a packaging production line is proposed. Utility Model Content

[0007] The purpose of this invention is to provide a gripping robot for a packaging production line, thereby solving or at least alleviating one or more of the aforementioned problems and other issues existing in the prior art.

[0008] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0009] A gripping robot for a packaging production line includes an assembly plate base, upright plates, and a first cylinder. The first cylinder is fixedly installed at one end of the bottom of the assembly plate base. A first slide rail is fixedly installed at the bottom of the assembly plate base away from the first cylinder. A first slider is slidably installed on the first slide rail. A movable seat is fixedly installed at the bottom of the first slider. Two upright plates are provided. One upright plate is fixed at the end of the assembly plate base near the first cylinder, and the other upright plate is fixed at the bottom of the movable seat. Both upright plates are equipped with clamping plate assemblies that can adjust the lateral length. The piston rod end of the first cylinder is fixedly connected to the movable seat.

[0010] In a gripping robot of a packaging production line according to the present invention, the clamping plate assembly includes a lead screw, which is rotatably mounted on one side of the vertical plate via a bearing seat. Both ends of the lead screw are threadedly mounted with sliding blocks. The vertical plate has a through hole, and the end of the sliding block away from the lead screw slides through the through hole and is fixedly connected to a clamping plate.

[0011] In a gripping robot of a packaging production line according to the present invention, the threads at both ends of the lead screw are arranged in opposite directions.

[0012] In a gripping robot of a packaging production line according to the present invention, a second slide rail is fixedly installed on the side of the upright plate near the lead screw, a second slider is fixedly installed on the second slide rail, and the second slider is fixedly connected to the sliding block.

[0013] In a gripping robot of a packaging production line according to the present invention, a handwheel is fixedly installed at one end of the bearing seat.

[0014] The gripping robot in a packaging production line according to the present invention further includes a limiting mechanism, the limiting mechanism including a second cylinder, one end of the second cylinder being fixed to the lower end of one side of one of the vertical plates, the piston rod end of the second cylinder being fixedly connected to a connecting plate, and the bottom of the connecting plate being fixedly connected to a limiting plate.

[0015] In a gripping robot of a packaging production line according to the present invention, an anti-slip buffer rubber pad is fixedly installed on the inner side of the gripping plate.

[0016] In a gripping robot of a packaging production line according to the present invention, the clamping plate is an aluminum alloy plate.

[0017] In a gripping robot of a packaging production line according to the present invention, a guide sleeve is fixedly connected to the limiting plate, and a guide rod is fixedly connected to the upright plate near the second cylinder, one end of the guide rod sliding out from the inside of the guide sleeve.

[0018] In a gripping robot of a packaging production line according to the present invention, the top of the assembly plate base is provided with a mounting hole.

[0019] This utility model has at least the following beneficial effects:

[0020] The spacing between the two upright plates can be adjusted over a wide range by the cooperation of the first cylinder, the first slide rail and the moving seat; the threaded transmission structure of the screw and the sliding block in the clamping plate assembly, combined with the manual adjustment method of the handwheel, can accurately change the spacing between the clamping plates, which can adapt to the clamping needs of items of different sizes and meet the multi-variety production requirements of the packaging production line.

[0021] The second cylinder in the limiting mechanism drives the limiting plate to move laterally, which can quickly limit the bottom of the item after it is clamped, preventing the item from shifting longitudinally or falling during handling. The guiding design of the guide rod and guide sleeve ensures that the limiting plate moves smoothly and accurately, further improving the reliability of the limiting and increasing the safety and yield of packaging production. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 for Figure 1 Enlarged diagram of part A in the diagram;

[0025] Figure 3 This is a structural schematic diagram from another perspective of the present invention.

[0026] Explanation of icon numbers:

[0027] 1. Assembly plate base; 101. Mounting hole; 2. Vertical plate; 201. Through hole; 3. First cylinder; 4. First slide rail; 5. First slider; 6. Moving seat; 7. Clamping plate assembly; 701. Lead screw; 702. Sliding block; 703. Clamping plate; 704. Bearing with seat; 705. Handwheel; 706. Second slide rail; 707. Second slider; 8. Limiting mechanism; 801. Second cylinder; 802. Connecting plate; 803. Limiting plate; 804. Guide sleeve; 805. Guide rod. Detailed Implementation

[0028] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0029] Please refer to Figures 1 to 3 As shown, an embodiment of this utility model provides a gripping robot for a packaging production line, including an assembly plate base 1, a vertical plate 2, and a first cylinder 3. The top of the assembly plate base 1 is provided with a mounting hole 101 for fixing the gripping robot on other equipment or supports of the packaging production line. The first cylinder 3 is fixedly installed at the bottom of one end of the assembly plate base 1. A first slide rail 4 is fixedly installed at the bottom of the end of the assembly plate base 1 away from the first cylinder 3. A first slider 5 is slidably installed on the first slide rail 4. A movable seat 6 is fixedly installed at the bottom of the first slider 5. There are two vertical plates 2. One vertical plate 2 is fixed at the end of the assembly plate base 1 near the first cylinder 3, and the other vertical plate 2 is fixed at the bottom of the movable seat 6. Both vertical plates 2 are equipped with a clamping plate assembly 7 that can adjust the lateral length. The piston rod end of the first cylinder 3 is fixedly connected to the movable seat 6.

[0030] In this embodiment, the clamping plate assembly 7 includes a lead screw 701 with opposite thread directions at both ends. The lead screw 701 is rotatably mounted on one side of the upright plate 2 via a bearing 704. Sliding blocks 702 are threadedly mounted on both ends of the lead screw 701. A through hole 201 is provided on the upright plate 2. The end of the sliding block 702 away from the lead screw 701 slides through the through hole 201 and is fixedly connected to a clamping plate 703, wherein the clamping plate 703 is made of aluminum alloy.

[0031] The assembly plate base 1 serves as the basic mounting component of the entire robot arm and can be fixed to other equipment on the packaging production line through the top mounting hole 101. When the first cylinder 3 is working, the extension and retraction of the piston rod drives the movable seat 6, which is fixedly connected to it, to slide along the first slide rail 4. The first slider 5 slides on the first slide rail 4, playing a guiding and supporting role. The movable seat 6 drives the vertical plate 2 fixed at its bottom to move, causing the distance between the two vertical plates 2 to change. When the lead screw 701 rotates, because the threads at both ends of the lead screw 701 engage with the sliding block 702, and the sliding block 702 is guided by the through hole 201 on the vertical plate 2, the two sliding blocks 702 can move relative to or away from each other along the axial direction of the lead screw 701. The sliding block 702 drives the clamping plate 703 to move, thereby adjusting the lateral distance between the two clamping plates 703 to adapt to the clamping requirements of items of different widths.

[0032] To further improve the friction between the clamping plate 703 and the object, an anti-slip buffer rubber pad is fixedly installed on the inner side of the clamping plate.

[0033] Furthermore, a second slide rail 706 is fixedly installed on the side of the vertical plate 2 near the lead screw 701, and a second slider 707 is fixedly installed on the second slide rail 706. The second slider 707 is fixedly connected to the sliding block 702.

[0034] The sliding guide structure, consisting of the second slide rail 706 and the second slider 707, provides auxiliary guidance and support for the movement of the slider 702. During the movement of the slider 702 driven by the lead screw 701, the second slider 707 slides along the second slide rail 706, enhancing the stability and straightness of the slider 702's movement and reducing the swaying caused by uneven force during movement.

[0035] In this embodiment, a handwheel 705 is fixedly mounted on one end of the bearing 704.

[0036] The handwheel 705 is connected to the lead screw 701 via a bearing 704. The operator can manually turn the handwheel 705 to rotate the lead screw 701, thereby manually adjusting the spacing of the clamping plates 703.

[0037] In this embodiment, a limiting mechanism 8 is also included. The limiting mechanism 8 includes a second cylinder 801. One end of the second cylinder 801 is fixed to the lower end of one side of one of the upright plates 2. A connecting plate 802 is fixedly connected to the piston rod end of the second cylinder 801. A limiting plate 803 is fixedly connected to the bottom of the connecting plate 802.

[0038] During the gripping process, the second cylinder 801 operates, driving the connecting plate 802 and the limiting plate 803 to move laterally via the extension and retraction of the piston rod. When it is necessary to limit the gripped item, the piston rod of the second cylinder 801 retracts, which in turn drives the limiting plate 803 to move towards the gripped item via the connecting plate 802, causing the limiting plate 803 to move to the bottom of the item, blocking and limiting the item to prevent longitudinal displacement or falling during gripping. When it is not necessary to limit the item, the second cylinder 801 drives the limiting plate 803 to move away from the item, releasing the restriction on the item and facilitating other operations by the robotic arm.

[0039] Furthermore, a guide sleeve 804 is fixedly connected to the limiting plate 803, and a guide rod 805 is fixedly connected to the upright plate 2 near the second cylinder 801. One end of the guide rod 805 slides out from the inside of the guide sleeve 804.

[0040] The guide rod 805 and the guide sleeve 804 cooperate to provide guidance for the lateral movement of the limit plate 803, ensuring that the limit plate 803 can move smoothly under the drive of the second cylinder 801, avoiding the limit plate 803 from deviating or shaking during the movement, and ensuring the accuracy and reliability of the limit function.

[0041] Working principle:

[0042] In use, first, according to the size of the item, rotate the handwheel 705 so that the two clamping plates 703 on the same upright plate 2 can move relative to each other or away from each other along the axis of the lead screw 701. Adjust the distance between the two clamping plates 703, then move the robot arm to the item to be clamped, so that the item is between the two upright plates 2. Then control the piston rod of the first cylinder 3 to retract, thereby driving the upright plate 2 at the bottom of the moving seat 6 to move towards the first cylinder 3 to complete the clamping of the item. Then control the piston rod of the second cylinder 801 to retract, thereby driving the limiting plate 803 to move towards the bottom of the item, so that the limiting plate 803 limits the bottom of the item and prevents the item from falling during the movement.

[0043] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the present invention's conception through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A gripping robot for a packaging production line, characterized in that, The assembly includes an assembly plate base (1), a vertical plate (2), and a first cylinder (3). The first cylinder (3) is fixedly installed at the bottom of one end of the assembly plate base (1). A first slide rail (4) is fixedly installed at the bottom of the end of the assembly plate base (1) away from the first cylinder (3). A first slider (5) is slidably installed on the first slide rail (4). A movable seat (6) is fixedly installed at the bottom of the first slider (5). There are two vertical plates (2). One vertical plate (2) is fixed at the end of the assembly plate base (1) near the first cylinder (3), and the other vertical plate (2) is fixed at the bottom of the movable seat (6). Both vertical plates (2) are equipped with clamping plate assemblies (7) that can adjust the lateral length. The piston rod end of the first cylinder (3) is fixedly connected to the movable seat (6).

2. The gripping robot for a packaging production line according to claim 1, characterized in that: The clamping plate assembly (7) includes a lead screw (701), which is rotatably mounted on one side of the upright plate (2) via a bearing (704). Both ends of the lead screw (701) are threadedly mounted with sliding blocks (702). The upright plate (2) has a through hole (201). The end of the sliding block (702) away from the lead screw (701) slides through the through hole (201) and is then fixedly connected to a clamping plate (703).

3. The gripping robot for a packaging production line according to claim 2, characterized in that: The threads at both ends of the lead screw (701) are arranged in opposite directions.

4. The gripping robot for a packaging production line according to claim 2, characterized in that: A second slide rail (706) is fixedly installed on the side of the upright plate (2) near the lead screw (701), and a second slider (707) is fixedly installed on the second slide rail (706). The second slider (707) is fixedly connected to the sliding block (702).

5. The gripping robot for a packaging production line according to claim 2, characterized in that: A handwheel (705) is fixedly mounted on one end of the bearing (704).

6. The gripping robot for a packaging production line according to claim 1, characterized in that: It also includes a limiting mechanism (8), which includes a second cylinder (801). One end of the second cylinder (801) is fixed to the lower side of one of the upright plates (2). A connecting plate (802) is fixedly connected to the piston rod end of the second cylinder (801). A limiting plate (803) is fixedly connected to the bottom of the connecting plate (802).

7. The gripping robot for a packaging production line according to claim 6, characterized in that: A guide sleeve (804) is fixedly connected to the limiting plate (803), and a guide rod (805) is fixedly connected to the upright plate (2) near the second cylinder (801). One end of the guide rod (805) slides out from the inside of the guide sleeve (804).

8. The gripping robot for a packaging production line according to claim 2, characterized in that: The inner side of the clamping plate (703) is fixedly installed with an anti-slip buffer rubber pad.

9. The gripping robot for a packaging production line according to claim 2, characterized in that: The clamping plate (703) is an aluminum alloy plate.

10. A gripping robot for a packaging production line according to claim 1, characterized in that: The top of the assembly plate base (1) is provided with a mounting hole (101).