Cooperation structure of taking and placing mechanism and transmission mechanism of bagged cargo unloading machine

By designing a lifting mechanism and gripper coordination structure in the bagged goods unloading machine, the coordination problem between the picking and placing mechanism and the transmission mechanism is solved, achieving efficient goods unloading and improving the working efficiency of the unloading machine.

CN224677353UActive Publication Date: 2026-08-25ZHUZHOU XUYANG ELECTRICAL & MECHANICAL TECH DEV CO LTD
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Patent Information

Application Number
CN202521433446.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-09
Publication Date
2026-08-25
Estimated Expiration
2035-07-09

AI Technical Summary

Technical Problem

Existing bagged cargo unloading machines suffer from inefficiency in the coordination between the pick-up and place-up mechanism and the transmission mechanism, making it difficult to meet the demand for rapid unloading of large volumes of goods.

Method used

Design a cooperative structure for the picking and placing mechanism and the conveying mechanism of a bagged goods unloading machine. The design adopts a lifting mechanism and a gripper, so that when the gripper docks with the conveying frame, the bottom surface of the holding space is slightly lower than the conveying surface of the conveying frame, and the goods bag can directly enter the holding space of the gripper. The coordinated cooperation is achieved through the control system.

Benefits of technology

It achieves efficient coordination between the picking and placing mechanism and the conveying mechanism, reduces the difficulty of the grippers picking up the cargo bags, and improves the working efficiency of the unloading machine.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a cooperation structure of taking and placing mechanism and transmission mechanism of bagged goods unloading machine, include: respectively being located on taking and placing mechanism and transmission mechanism's lifting mechanism no.
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Description

Technical Field

[0001] This utility model relates to the cooperative structure of the picking and placing mechanism and the conveying mechanism of a bagged goods unloading machine, and belongs to the field of bagged goods unloading technology. Background Technology

[0002] With rapid societal development, railway, port, and highway systems are experiencing heavy transportation workloads, leading to the emergence of various large-scale logistics enterprises. This places higher demands on cargo transportation and unloading efficiency, making mechanized unloading the mainstream method. However, in some railway stations, the unloading and packing of bulk bagged goods such as grain, fertilizer, and cement still faces challenges. Bagged goods constitute a large proportion of railway transportation, and currently, manual handling and unloading are prevalent. This manual unloading process is labor-intensive, inefficient, and results in long periods of time spent on freight cars, impacting freight car turnaround. Furthermore, high labor costs place a heavy burden on labor-intensive enterprises, thus affecting the overall efficiency of railway transportation.

[0003] To address the aforementioned issues, the industry has been continuously researching mechanized unloading. Patent application number 202311232091.7 discloses a bagged cargo unloading machine developed by our company. Its basic structure consists of a track beam mounted on a movable main unit, with one end positioned above the cargo extraction area (within the freight car compartment) and the other end above the cargo stacking platform. A bagged cargo extraction and release device travels along the track beam. In application, the extraction and release device extracts the bagged cargo from the freight car compartment and then, holding the bagged cargo, slides it along the track beam to the cargo stacking platform. The platform mentioned here generally refers to inbound transfer tools such as forklifts, where the bagged cargo stacked on the forklift is transferred to a nearby warehouse.

[0004] After the aforementioned unloading machine was launched on the market, customer feedback indicated that although it significantly improved work efficiency compared to manual handling, it still could not meet the demand for rapid unloading of large volumes of goods, and the market expects it to have better performance.

[0005] To address the aforementioned issues, our company has developed a new bagged goods unloading machine. This involves the coordination between the picking and placing mechanism and the conveying mechanism. Whether this issue can be effectively resolved will determine whether the unloading machine can operate normally and efficiently, as well as whether it can be easily operated. Utility Model Content

[0006] The technical problem to be solved by this utility model is: how to achieve coordinated operation between the pick-up and place mechanism and the transmission mechanism.

[0007] To address the above problems, the technical solution proposed by this utility model is as follows: A cooperative structure for a bagged goods unloading machine, comprising: a lifting mechanism one and a lifting mechanism two respectively mounted on the lifting mechanism and the conveying mechanism; a gripper of the lifting mechanism and a conveying frame with a conveying surface of the conveying mechanism; and a control system for controlling the lifting mechanism one, the lifting mechanism two, the gripper, and the conveying frame. The lifting mechanism has a mounting frame for mounting the gripper, which can move back and forth and left and right on the mounting frame. The mounting frame is located above the conveying frame. The gripper has a left gripper and a right gripper symmetrically arranged. When the left gripper and the right gripper clamp together, they can form a front-to-back, open holding space for accommodating the bag. The gripper can dock with the conveying frame and make the bottom surface of the holding space lower than the conveying surface of the conveying frame, so that the bag conveyed from the conveying frame can directly enter the holding space of the gripper.

[0008] In the clamped state, the left clamping hand has several left clamping fingers that extend vertically downward and then horizontally to the right, and the right clamping hand has several right clamping fingers that extend vertically downward and then horizontally to the left. The gripping space is the space formed by the left and right clamping fingers in this state, and the left and right clamping fingers are on the same vertical plane.

[0009] The transfer frame has several motor-driven transfer rollers, which together form a transfer surface for transferring the goods bags.

[0010] The spacing between the transmission rollers is greater than the diameter of the left and right gripping fingers, the spacing between the left and right gripping fingers is greater than the diameter of the transmission rollers, and the spacing between the axes of two adjacent fingers is equal to the spacing between the axes of two adjacent transmission rollers.

[0011] The rear section of the mounting frame is located directly above the front end of the transfer frame. The gripper slides down to the rear section of the mounting frame, allowing the left and right gripper fingers to fall between the transfer rollers at the front of the transfer frame.

[0012] The first lifting mechanism has a drive gear 1 driven by a drive motor 1 and a vertical gear rail 1 meshing with the drive gear 1. The second lifting mechanism has a drive gear 2 driven by a drive motor 2 and a vertical gear rail 2 meshing with the drive gear 2.

[0013] Beneficial effects: When the gripper docks with the conveyor, the bottom surface of the gripping space is slightly lower than the conveying surface of the conveyor. The conveyor can directly send the bag into the gripper's gripping space without the gripper having to perform a gripping action. This achieves coordinated operation between the pick-and-place mechanism and the conveyor mechanism, greatly reducing the difficulty for the gripper to pick up the bag and improving the gripper's working efficiency. Attached Figure Description

[0014] Figure 1 A three-dimensional schematic diagram showing the structural relationship between the picking and placing mechanism and the transmission mechanism from the side view; Figure 2 This is a three-dimensional schematic diagram of the picking and placing mechanism; Figure 3 A top-view perspective of the structural relationship between the pick-and-place mechanism and the transmission mechanism; Figure 4 This is a three-dimensional schematic diagram showing the structural relationship between the lifting mechanism one of the picking and placing mechanism and the lifting mechanism two of the transmission mechanism.

[0015] In the diagram: 1. Mounting frame; 11. Gripper; 110. Holding space; 111. Left gripper; 1111. Left gripper fingers; 112. Right gripper; 1121. Right gripper fingers; 12. Drive motor one; 13. Drive gear one; 14. Vertical gear rail one; 2. Transfer frame; 21. Transfer surface; 211. Transfer roller; 22. Drive motor two; 23. Drive gear two; 24. Vertical gear rail two; 3. Cargo bag. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings: like Figure 1 As shown in Figure 3, a cooperative structure of a bagged goods unloading machine includes a lifting mechanism and a lifting mechanism 2 respectively provided on the lifting mechanism and the conveying mechanism, a gripper 11 of the lifting mechanism and a conveying frame 2 with a conveying surface 21 of the conveying mechanism, and a control system for controlling the lifting mechanism 1, the lifting mechanism 2, the gripper 11 and the conveying frame 2; the lifting mechanism has a mounting frame 1 for mounting the gripper 11, the gripper 11 can move back and forth and left and right on the mounting frame 1, the mounting frame 1 is located above the conveying frame 2, the gripper 11 has a left gripper 111 and a right gripper 112 symmetrically arranged, when the left gripper 111 and the right gripper 112 clamp each other, they can form a front-to-back communicating holding space 110 for accommodating the goods bag 3, the gripper 11 can dock with the conveying frame 2 and make the bottom surface of the holding space 110 lower than the conveying surface 21 of the conveying frame 2, so that the goods bag 3 conveyed from the conveying frame 2 can directly enter the holding space 110 of the gripper 11. In operation, the control system raises or lowers either the mounting frame 1 or the transfer frame 2, aligning the gripper 11 with the transfer frame 2 and ensuring the bottom surface of the holding space 110 is slightly lower than the conveying surface 21 of the transfer frame 2. The cargo bags 3 conveyed by the transfer frame 2 directly enter the holding space 110 of the gripper 11. Then, the control system raises the mounting frame 1 along with the gripper 11, pushing the gripper 11 above the stacked cargo bags 3. Finally, the gripper 11 is released, completing the stacking of the cargo bags 3. This achieves coordinated operation between the picking and placing mechanism and the conveying mechanism, enabling the loading and unloading machine to operate normally and efficiently.

[0017] Furthermore, in the clamping state, the left gripper 111 has several left gripper fingers 1111 extending vertically downwards and then horizontally to the right, and the right gripper 112 has several right gripper fingers 1121 extending vertically downwards and then horizontally to the left. The gripping space 110 is the space formed by the left gripper fingers 1111 and the right gripper fingers 1121 in this state, and the left gripper fingers 1111 and the right gripper fingers 1121 are on the same vertical plane. The transfer frame 2 has several transfer rollers 211 driven by motors, and the transfer surface 21 for transferring the goods bag 3 is formed by the several transfer rollers 211. The distance between the transfer rollers 211 is greater than the diameter of the left gripper fingers 1111 and the right gripper fingers 1121, and the distance between the left gripper fingers 1111 and the distance between the right gripper fingers 1121 is greater than the diameter of the transfer rollers 211. The distance between the axes of two adjacent fingers is equal to the distance between the axes of two adjacent transfer rollers 211. The rear section of the mounting frame 1 is located directly above the front end of the transfer frame 2. The grippers slide down to the rear section of the mounting frame 1, allowing the left gripper finger 1111 and the right gripper finger 1121 to fall between the transfer rollers 211 at the front of the transfer frame 2. The transfer frame 2 can only move up and down, not forward or backward. The purpose of this arrangement is to ensure that the grippers 11 and transfer frame 2 are connected in such a way that the left gripper finger 1111 and the right gripper finger 1121 can sink down to the bottom of the gripping space 110 at the front of the transfer frame 2, below the transfer surface 21 of the transfer frame 2. This allows the left gripper 111 and the right gripper 112 to directly transfer the bag 3 into the gripping space 25 without requiring gripping action, greatly reducing the difficulty for the grippers 11 to grasp the bag 3 and improving their working efficiency.

[0018] like Figure 3 , 4 As shown, as an alternative, lifting mechanism one has a drive gear one 13 driven by drive motor one 12 and a vertical gear rail one 14 meshing with drive gear one 13, and the lifting of the mounting bracket for mounting gripper 11 is achieved by drive motor one 12 driving drive gear one 13 to rotate; lifting mechanism two has a drive gear two 23 driven by drive motor two 22 and a vertical gear rail two 24 meshing with drive gear two 23, and the lifting of transmission frame 2 is achieved by drive motor two 22 driving drive gear two 23 to rotate.

[0019] As an alternative, lifting mechanism one and lifting mechanism two can be telescopic cylinders.

[0020] In addition to the above-described embodiments, the lifting mechanism 1, lifting mechanism 2, and lifting mechanism 3 can be arbitrarily combined using telescopic cylinders, gear and toothed rails, or other lifting methods. That is, on a single unloading machine, lifting mechanism 1, lifting mechanism 2, and lifting mechanism 3 can each select different lifting methods as needed.

Claims

1. A cooperative structure for the picking and placing mechanism and the conveying mechanism of a bagged goods unloading machine, characterized in that, include: Lifting mechanism one and lifting mechanism two are respectively provided on the pick-up and place mechanism and the transmission mechanism; the gripper (11) of the pick-up and place mechanism and the transmission frame (2) with a transmission surface (21) of the transmission mechanism; and a control system for controlling lifting mechanism one, lifting mechanism two, gripper (11) and transmission frame (2); the pick-up and place mechanism has a mounting frame (1) for mounting the gripper (11), the gripper (11) can move back and forth and left and right on the mounting frame (1), the mounting frame (1) is located above the transmission frame (2), and the gripper (11) The device has a left gripper (111) and a right gripper (112) arranged symmetrically on the left and right sides. When the left gripper (111) and the right gripper (112) clamp each other, they can form a front-to-back holding space (110) that can accommodate the cargo bag (3). The gripper (11) can dock with the transfer frame (2) and make the bottom surface of the holding space (110) lower than the transfer surface (21) of the transfer frame (2), so that the cargo bag (3) transferred from the transfer frame (2) can directly enter the holding space (110) of the gripper (11).

2. The cooperative structure of the picking and placing mechanism and the conveying mechanism of the bagged goods unloading machine according to claim 1, characterized in that, In the clamped state, the left clamp (111) has several left clamp fingers (1111) that extend vertically downward and then horizontally to the right, and the right clamp (112) has several right clamp fingers (1121) that extend vertically downward and then horizontally to the left. The gripping space (110) is the space formed by the left clamp fingers (1111) and the right clamp fingers (1121) in this state, and the left clamp fingers (1111) and the right clamp fingers (1121) are on the same vertical plane.

3. The cooperative structure of the picking and placing mechanism and the conveying mechanism of the bagged goods unloading machine according to claim 2, characterized in that, The transmission frame (2) has a plurality of transmission rollers (211) driven by motors, and the plurality of transmission rollers (211) form a transmission surface (21) for conveying the cargo bag (3).

4. The cooperative structure of the picking and placing mechanism and the conveying mechanism of the bagged goods unloading machine according to claim 3, characterized in that, The spacing between the transmission rollers (211) is greater than the diameter of the left gripping finger (1111) and the right gripping finger (1121). The spacing between the left gripping fingers (1111) and the spacing between the right gripping fingers (1121) are greater than the diameter of the transmission rollers (211). The spacing between the axes of two adjacent fingers is equal to the spacing between the axes of two adjacent transmission rollers (211).

5. The cooperative structure of the picking and placing mechanism and the conveying mechanism of the bagged goods unloading machine according to claim 4, characterized in that, The rear section of the mounting frame (1) is located directly above the front end of the transmission frame (2). The gripper slides down to the rear section of the mounting frame (1), allowing the left gripper finger (1111) and the right gripper finger (1121) to fall between the transmission rollers (211) at the front section of the transmission frame (2).

6. The cooperative structure of the picking and placing mechanism and the conveying mechanism of the bagged goods unloading machine according to any one of claims 1-5, characterized in that, The first lifting mechanism has a drive gear 1 (13) driven by a drive motor 1 (12) and a vertical gear rail 1 (14) meshing with the drive gear 1 (13). The second lifting mechanism has a drive gear 2 (23) driven by a drive motor 2 (22) and a vertical gear rail 2 (24) meshing with the drive gear 2 (23).

Citation Information

Patent Citations

  • Bagged cargo loading and unloading machine for boxcar

    CN117228365A