Truss robot automatic grabbing mechanism

By designing a gantry robot automatic gripping mechanism with hook components, pressure plate lifting cylinders, and shock absorption structures, the problems of unstable bag gripping, inaccurate hook release, and uneven packing were solved, achieving efficient automated operation and a stable packaging process.

CN224544593UActive Publication Date: 2026-07-24JIANGMEN WEIXIN PACKAGING IND CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGMEN WEIXIN PACKAGING IND CO LTD
Filing Date
2025-07-09
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing gantry robots suffer from problems such as unstable gripping, inaccurate unhooking, uneven packing, and vibration and impact during the bag grabbing and boxing process, resulting in low efficiency and inconsistent quality.

Method used

An automated gripping mechanism for gantry robots, comprising a hook assembly, a pressure plate lifting cylinder, a vibration motor, a hook cylinder, and a shock-absorbing spring, was designed. This mechanism enables stable gripping, transfer, unhooking, and flattening of packaging bags. The stability and flexibility of the equipment are improved through fine-tuning of the hook assembly and the shock-absorbing structure.

Benefits of technology

It has enabled automated grasping, transfer, boxing and flattening of packaging bags, improving work efficiency and packaging neatness, reducing manual intervention, and enhancing the operational stability and service life of the equipment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224544593U_ABST
    Figure CN224544593U_ABST
Patent Text Reader

Abstract

The utility model discloses a truss robot automatic grabbing mechanism, it includes the mounting frame, the inside of this mounting frame is equipped with the hook subassembly, the upper portion of this mounting frame is equipped with the pressing plate lifting cylinder, the output of this pressing plate lifting cylinder is connected with the pressing plate of mounting in the bottom of this mounting frame, the middle position of this mounting frame is equipped with the vibration motor, the left and right sides of this hook subassembly are equipped with the hook cylinder respectively, and the lower end of two hook cylinders is connected with the packaging bag hook respectively. The truss robot automatic grabbing mechanism of the utility model realizes a series of automation operation from grabbing the packaging bag, the transfer to the boxing station, to unhook and flatten, saves the manual work, promotes the operation efficiency, and effectively improves the packing neatness.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of industrial automation equipment technology, specifically relating to an automatic grasping mechanism for a gantry robot. Background Technology

[0002] With the development of intelligent manufacturing and industrial automation, gantry robots are increasingly being used in fields such as automated assembly, material handling, and packing. Gantry robots achieve high-precision linear movement along fixed tracks and, in conjunction with end effectors, complete various automated tasks, significantly improving production efficiency and operational stability.

[0003] In traditional bag handling and packing processes, manual or semi-automatic methods are commonly used. This is not only inefficient but also labor-intensive, lacks repeatability, and is prone to errors, leading to inconsistent packaging quality. While some existing automated equipment can complete basic handling or packing tasks, it still has many shortcomings in terms of bag handling stability, precise control of unhooking, and compaction and flatness during packing.

[0004] The gripping reliability is poor. The existing hook mechanism has a simple structure and is prone to problems such as packaging bags falling off or not being gripped properly during the gripping process, which affects the continuity of the overall operation.

[0005] Inaccurate unhooking control and a lack of reliable unhooking auxiliary mechanisms can easily cause packaging bags to unhook prematurely before they are fully positioned, affecting the packing effect.

[0006] Poor packing neatness, unstable pressure plate structure or lack of precise stroke control, which prevents effective flattening of the packaging bags, resulting in inconsistent appearance of the finished packaging products.

[0007] Insufficient vibration buffering capacity means that the equipment is prone to vibration and impact during movement and descent, which may damage the mechanical structure or the packaging bag itself.

[0008] Therefore, overcoming the shortcomings of the existing technology is an urgent problem to be solved in this technical field. Utility Model Content

[0009] In view of the technical problems mentioned in the background art, the purpose of this utility model is to provide an automatic grasping mechanism for gantry robots to solve the technical problems mentioned in the background art.

[0010] To achieve the above objectives, the present invention provides the following technical solution: an automatic gripping mechanism for a gantry robot, comprising a mounting frame, a hook assembly inside the mounting frame, a pressure plate lifting cylinder on the upper part of the mounting frame, the output end of the pressure plate lifting cylinder being connected to the pressure plate installed at the bottom of the mounting frame, a vibration motor in the middle of the mounting frame, hook cylinders on the left and right sides of the hook assembly, and packaging bag hooks connected to the lower ends of the two hook cylinders respectively.

[0011] Furthermore, a hook release baffle is connected between the hook cylinder and the packaging bag hook, and an anti-hook release baffle is installed on the packaging bag hook.

[0012] Furthermore, the hook assembly has hook support guide posts symmetrically connected to both sides of its upper end, and a hook position adjusting screw is provided in the middle of the upper end of the hook assembly, which is located between the two hook support guide posts.

[0013] Furthermore, the mounting frame includes an upper frame and a lower frame, which are connected vertically to each other, and a shock-absorbing spring is provided between the upper frame and the lower frame.

[0014] Furthermore, a custom slider is installed at the upper end of the mounting frame, and an adjusting pressure plate screw is installed on the upper side of the mounting frame.

[0015] Furthermore, a downward pressure rigid limit part is installed at the upper end of the mounting frame.

[0016] The present invention has the following advantages: the mounting frame is equipped with a hook assembly inside, and a pressure plate lifting cylinder is provided on the upper part of the mounting frame. The output end of the pressure plate lifting cylinder is connected to the pressure plate installed at the bottom of the mounting frame. A vibration motor is provided in the middle of the mounting frame. A hook cylinder is provided on the left and right sides of the hook assembly, and a packaging bag hook is connected to the lower end of each of the two hook cylinders. The gantry robot automatic gripping mechanism of the present invention realizes a series of automated operations from gripping the packaging bag, transferring it to the boxing station, to unhooking and flattening, saving labor, improving work efficiency, and effectively improving the neatness of packaging. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall front structure of this utility model.

[0018] Figure 2 This is a three-dimensional structural diagram of the hook assembly of this utility model.

[0019] Figure 3 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0020] Figure 4 This is a side view of the present invention.

[0021] Reference numerals: Mounting frame 10; Hook assembly 20; Pressure plate lifting cylinder 30; Pressure plate 31; Vibration motor 40; Hook cylinder 21; Packaging bag hook 22; Unhooking baffle 23; Anti-unhooking baffle 24; Hook support guide post 25; Hook position adjusting screw 26; Upper frame 11; Lower frame 12; Shock-absorbing spring 13; Custom slider 14; Adjusting pressure plate screw 15; Lower pressure hard limit part 16. Detailed Implementation

[0022] like Figures 1 to 4 As shown, an automatic gripping mechanism for a gantry robot includes a mounting frame 10. The mounting frame 10 has a hook assembly 20 inside, used for gripping and releasing packaging bags. A pressure plate lifting cylinder 30 is located at the upper part of the mounting frame 10. The output end of the pressure plate lifting cylinder 30 is connected to a pressure plate 31 installed at the bottom of the mounting frame 10, driving the pressure plate 31 to move up and down, thus pressing the packaging bag or oven. A vibration motor 40 is located in the middle of the mounting frame 10, used to activate the vibration function during gripping or placing to assist in leveling the packaging bag or improving the packing effect. A hook cylinder 21 is located on each of the left and right sides of the hook assembly 20. A packaging bag hook 22 is connected to the lower end of each hook cylinder 21 for hooking or releasing the packaging bag from the hanging ring at the top. The gripping and packing process of this utility model is as follows: Hook preparation: Before hooking, the hook cylinder 21 extends, causing the packaging bag hook 22 to move downwards to the desired hanging position; simultaneously, the pressure plate lifting cylinder 30 drives the pressure plate 31 to rise, creating space for the hooking action. The entire mechanism moves above the oven, ready to hook. Hooking operation: The mechanism descends to a suitable height, the hook cylinder 21 retracts, causing the packaging bag hook 22 to hook the packaging bag; subsequently, the entire mechanism rises 100mm, lifting the packaging bag away from the oven. Transfer and packing: The mechanism moves above the packing station, and the pressure plate lifting cylinder 30 drives the mechanism to descend. Unhooking and packing: When descending to approximately 1 / 3 of the box height, the hook cylinder 21 extends again to unhook; simultaneously, the vibration motor 40 starts, moderately vibrating the packaging bag to ensure it falls evenly into the box. It then continues to descend, and the pressure plate 31 gently presses the packaging bag flat, completing the packing process. Through the above structure and operation process, this utility model realizes a series of automated operations from grabbing the packaging bag, transferring it to the boxing station, to unhooking and flattening, saving labor, improving work efficiency, and effectively improving the neatness of packaging.

[0023] In practical implementation, a release baffle 23 is connected between the hook cylinder 21 and the packaging bag hook 22. The release baffle 23 is used to control the release action of the packaging bag hook during the packing process. An anti-release baffle 24 is installed on the packaging bag hook 22. The anti-release baffle 24 can effectively prevent the packaging bag from accidentally detaching during handling or movement, ensuring the stability and safety of the gripping process.

[0024] In practical implementation, hook support guide posts 25 are symmetrically connected to both sides of the upper end of the hook assembly 20. These guide posts provide support for the vertical movement of the hook assembly 20, preventing deviation or swaying during lifting and lowering, and improving operational stability. A hook position adjusting screw 26 is located at the middle of the upper end of the hook assembly 20. This screw 26 is positioned between the two hook support guide posts 25 and is fixedly connected to the hook assembly 20. It allows for fine-tuning of the vertical positioning of the hook assembly 20 through rotation. This adjustment structure facilitates quick adaptation to different packaging bag sizes or workstation heights, enhancing the equipment's versatility and flexibility.

[0025] In specific implementation, the mounting frame 10 includes an upper frame 11 and a lower frame 12, which are connected vertically to each other. A shock-absorbing spring 13 is provided between the upper frame 11 and the lower frame 12 to absorb vibration and impact during the gripping or packing process, thereby improving the stability and service life of the equipment.

[0026] In practical implementation, a custom slider 14 is installed on the upper end of the mounting frame 10. This custom slider 14 is used to cooperate with the main slide rail structure of the gantry robot to ensure the smooth movement of the entire gripping mechanism in the horizontal and vertical directions, and to achieve rapid positioning and installation. An adjusting pressure plate screw 15 is installed on the upper side of the mounting frame 10. This adjusting pressure plate screw 15 is connected to the pressure plate structure and is used to fine-tune the initial height or clamping stroke of the pressure plate.

[0027] In practical implementation, the upper end of the mounting frame 10 is equipped with a downward pressure hard limit part 16. The downward pressure hard limit part 16 is used to limit the maximum downward pressure stroke of the pressure plate, to prevent the pressure plate from damaging the packaging bag or the contents of the box due to excessive pressure, and also to protect the pressure plate lifting cylinder and the whole machine structure.

[0028] In summary, the mounting frame 10 has a hook assembly 20 inside, a pressure plate lifting cylinder 30 on the upper part of the mounting frame 10, the output end of the pressure plate lifting cylinder 30 is connected to the pressure plate 31 installed at the bottom of the mounting frame 10, a vibration motor 40 is provided in the middle of the mounting frame 10, and a hook cylinder 21 is provided on the left and right sides of the hook assembly 20, and a packaging bag hook 22 is connected to the lower end of each of the two hook cylinders 21. The gantry robot automatic gripping mechanism of this utility model realizes a series of automated operations from gripping the packaging bag, transferring it to the boxing station, to unhooking and flattening, saving labor, improving work efficiency, and effectively improving the neatness of packaging.

Claims

1. An automatic grasping mechanism for a gantry robot, characterized in that, It includes an installation frame (10), inside which is a hook assembly (20), and a pressure plate lifting cylinder (30) is provided on the upper part of the installation frame (10). The output end of the pressure plate lifting cylinder (30) is connected to the pressure plate (31) installed at the bottom of the installation frame (10). A vibration motor (40) is provided in the middle of the installation frame (10). Hook cylinders (21) are provided on the left and right sides of the hook assembly (20), and the lower ends of the two hook cylinders (21) are respectively connected to packaging bag hooks (22).

2. The gantry robot automatic gripping mechanism according to claim 1, characterized in that, A hook-off baffle (23) is connected between the hook cylinder (21) and the packaging bag hook (22), and an anti-hook-off baffle (24) is installed on the packaging bag hook (22).

3. The gantry robot automatic gripping mechanism according to claim 1, characterized in that, The hook assembly (20) has hook support guide posts (25) symmetrically connected on both sides of its upper end. The hook position adjustment screw (26) is provided in the middle of the upper end of the hook assembly (20) and is located between the two hook support guide posts (25).

4. The gantry robot automatic gripping mechanism according to claim 1, characterized in that, The mounting frame (10) includes an upper frame (11) and a lower frame (12), which are connected vertically to each other. A shock-absorbing spring (13) is provided between the upper frame (11) and the lower frame (12).

5. The gantry robot automatic gripping mechanism according to claim 1, characterized in that, The upper end of the mounting frame (10) is equipped with a custom slider (14), and the upper side of the mounting frame (10) is equipped with an adjusting pressure plate screw (15).

6. The gantry robot automatic gripping mechanism according to claim 1, characterized in that, The upper end of the mounting frame (10) is equipped with a downward pressure hard limit part (16).