Dust-proof ring packing device for excavator

Abstract

The utility model provides a kind of excavator dust ring packing device.The device includes first memory, for storing excavator production plan;Programmable logic controller, the input of programmable logic controller is connected with first memory;Programmable logic controller is used to obtain the model information of excavator in current operation in excavator production plan from first memory;First control loop, second control loop and third control loop are connected with the output of programmable logic controller respectively;Second control loop is connected before first control loop is connected, and second control loop is disconnected after third control loop is cut off;Wherein, programmable logic controller is based on model information, respectively to first control loop, second control loop and third control loop sends first control signal, second control signal and third control signal.The scheme of the application can realize the automatic packing of dust ring according to the model information of excavator.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery manufacturing technology, and in particular to a dustproof ring packaging device for excavators. Background Technology

[0002] As a core construction equipment, the protective packaging process of excavators' components before they leave the factory is crucial to product reliability. When an excavator is shipped without a bucket, the hydraulic lines and connecting components at the front working device interface must be protected against dust, with dust rings being a key protective component. Due to differences in the front-end structural design and hydraulic system configuration of different models, the applicable dust rings are unique in specifications, models, and part numbers. Therefore, accurate packaging of dust rings is an important process.

[0003] Currently, dust ring packaging operations mainly rely on manual labor, which presents the following technical problems:

[0004] (1) Potential quality issues due to incorrect installation: Operators need to manually confirm the dust seal part number based on the machine configuration information. However, excavator models are diverse and configuration parameters are complex. Manual verification is easily affected by factors such as fatigue and negligence, leading to the confusion and use of different dust seal parts. It is difficult to accurately distinguish them by visual inspection alone. Incorrect installation may lead to dust seal failure, hydraulic system contamination, and in turn, serious malfunctions such as pipeline wear and seal failure, increasing after-sales maintenance costs.

[0005] (2) Wasted motion and low efficiency: Operators need to frequently travel between the material rack and the information board, repeatedly check the model code, consult paper process documents or operate the terminal system. The proportion of invalid motions in a single packaging operation is too high, resulting in wasted labor costs.

[0006] (3. Risk of Omissions in Operations: The existing process lacks a mandatory anti-omission mechanism, relying on operators to memorize and complete the packaging steps. In multi-model mixed production scenarios, if operators are distracted due to process switching or urgent order insertion, dust seals may be missed. Missing dust seals will expose the front-end interface directly to the transportation environment, causing mud, sand, and moisture to enter the hydraulic system, resulting in excessive cleanliness during subsequent installation, and even causing precision components to rust and become unusable.) Utility Model Content

[0007] This utility model provides a dust ring packaging device for excavators to solve the problems of incorrect packaging due to complex machine models and human fatigue and negligence in the current manual packaging of dust rings for excavators, low efficiency due to frequent information verification, and missing packaging due to the lack of a mandatory mechanism.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0009] This utility model embodiment provides a dustproof ring packaging device for excavators, including:

[0010] The first memory is used to store the excavator production plan;

[0011] A programmable logic controller (PLC), the input of which is connected to the first memory; the PLC is used to retrieve the model information of the excavator currently operating in the excavator production plan from the first memory;

[0012] The first control loop, the second control loop, and the third control loop are respectively connected to the output terminal of the programmable logic controller; the second control loop is connected before the first control loop is turned on, and is disconnected after the third control loop is turned off;

[0013] The programmable logic controller sends a first control signal, a second control signal, and a third control signal to the first control loop, the second control loop, and the third control loop, respectively, based on the model information.

[0014] The first control loop is used to receive a first control signal sent by the programmable logic controller (PLC) to perform the gripping and quantity control operations of the dust rings; the second control loop is used to receive a second control signal sent by the PLC to control the engine switch; and the third control loop is used to receive a third control signal sent by the PLC to drive the robotic arm to perform automated packaging operations for the dust rings.

[0015] Optionally, the first control loop includes:

[0016] The first relay is connected to the output terminal of the programmable logic controller;

[0017] The first solenoid valve is connected to the first relay;

[0018] The first cylinder is connected to the first solenoid valve;

[0019] A counter is connected to the first cylinder.

[0020] Optionally, the second control loop includes:

[0021] The second relay is connected to the output terminal of the programmable logic controller;

[0022] The engine is connected to the second relay.

[0023] Optionally, the third control loop includes:

[0024] The third relay is connected to the output terminal of the programmable logic controller;

[0025] The second solenoid valve is connected to the third relay;

[0026] The second cylinder is connected to the second solenoid valve;

[0027] A robotic arm is connected to a second cylinder; the second cylinder is used to drive the robotic arm to perform packaging operations.

[0028] Optionally, the device further includes:

[0029] The second memory is connected to the input terminal of the programmable logic controller; the second memory is used to pre-store the dust ring part number, specifications and packaging parameters corresponding to each model information.

[0030] Optionally, the device further includes:

[0031] An RFID reader or a QR code scanner is connected to the input terminal of the programmable logic controller; the RFID reader is used to read the electronic tag information set on the excavator body; the QR code scanner is used to scan the QR code mark on the excavator body.

[0032] The programmable logic controller receives electronic tag information sent by the radio frequency identification reader or receives QR code identifier sent by the QR code scanner, and compares and verifies it with the excavator model information currently in operation in the excavator production plan obtained from the first memory.

[0033] Optionally, the device further includes:

[0034] A first position sensor is mounted on the second cylinder; the first position sensor is used to detect the movement position of the robotic arm.

[0035] A visual recognition unit is mounted on the end effector of the robotic arm; the visual recognition unit is used to identify the position and status of the packaging bag.

[0036] Optionally, the device further includes:

[0037] A gripping actuator is connected to the first cylinder, and the gripping actuator is used to perform the gripping and placement operation of the dustproof ring;

[0038] A second position sensor is disposed at the end of the piston rod of the first cylinder; the second position sensor is used to detect the gripping position of the dust ring;

[0039] A pressure sensor is installed on the gripping actuator; the pressure sensor is used to detect whether the gripping force of the gripping actuator reaches a preset threshold.

[0040] The beneficial effects of this utility model are as follows: This application improves the efficiency and accuracy of dust ring packaging through intelligent control by a programmable logic controller and a multi-loop collaborative mechanism. Its core beneficial effects include: automatically matching machine requirements based on production plans, avoiding manual parameter switching, and reducing packaging error rates; prioritizing engine start / stop in the second control loop to ensure strict synchronization between power supply and processes; and employing a three-loop timing interlock design (second loop first connected, then disconnected) to eliminate mechanical conflicts, reduce equipment failure rates, and simultaneously achieve fully automated operation. Attached Figure Description

[0041] Figure 1 This is a schematic diagram showing the structure of the excavator dust ring packaging device provided in an embodiment of the present invention. Detailed Implementation

[0042] To make the technical problems, solutions, and advantages of this invention clearer, a detailed description will be provided below with reference to the accompanying drawings and specific embodiments. In the following description, specific details such as particular configurations and components are provided merely to aid in a comprehensive understanding of the embodiments of this invention. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this invention. Furthermore, for clarity and brevity, descriptions of known functions and structures have been omitted.

[0043] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present invention. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0044] Reference Figure 1 As shown, this application embodiment provides an excavator dust ring packaging device, including:

[0045] First memory 1, used to store excavator production plans;

[0046] A programmable logic controller (PLC) 2, the input terminals of which are connected to the first memory 1; the programmable logic controller 2 is used to obtain the model information of the excavator currently operating in the excavator production plan from the first memory 1;

[0047] The first control loop, the second control loop, and the third control loop are respectively connected to the output terminal of the programmable logic controller 2; the second control loop is connected before the first control loop is turned on, and is disconnected after the third control loop is turned off;

[0048] The programmable logic controller 2 sends a first control signal, a second control signal, and a third control signal to the first control loop, the second control loop, and the third control loop, respectively, based on the model information.

[0049] The first control loop is used to receive a first control signal sent by the programmable logic controller 2 and perform the gripping and quantity control operations of the dust rings; the second control loop is used to receive a second control signal sent by the programmable logic controller 2 and control the engine switch; the third control loop is used to receive a third control signal sent by the programmable logic controller 2 and drive the robot arm to perform automated packaging operations of the dust rings.

[0050] In this embodiment, the first memory 1 stores the excavator production plan, including information such as the production sequence and time nodes for each model. The first memory 1 can be connected to a Production Planning System (MES) to obtain real-time production plans. The first memory 1 provides production plan data to the PLC as the basis for control logic. The programmable logic controller 2 obtains the model information of the currently operating excavator from the first memory 1, generates control signals based on the model information, and sends them to each control loop. The programmable logic controller 2 is the control core of the entire device, coordinating the working timing and logic of each part. This application utilizes the programmable logic controller 2 to set up a design where "the second control loop is connected before the first control loop is connected, and the second control loop is disconnected after the third control loop is disconnected." This design reflects the strict working timing control logic in the excavator dust ring packaging device, which is of great significance to the system's safety, reliability, and working efficiency.

[0051] Optionally, the first control loop includes:

[0052] The first relay 3 is connected to the output terminal of the programmable logic controller 2;

[0053] The first solenoid valve 4 is connected to the first relay 3;

[0054] The first cylinder 5 is connected to the first solenoid valve 4;

[0055] Counter 6 is connected to the first cylinder 5.

[0056] Optionally, the second control loop includes:

[0057] The second relay 7 is connected to the output terminal of the programmable logic controller 2;

[0058] Engine 8 is connected to the second relay 7.

[0059] Optionally, the third control loop includes:

[0060] The third relay 9 is connected to the output terminal of the programmable logic controller 2;

[0061] The second solenoid valve 10 is connected to the third relay 9;

[0062] The second cylinder 11 is connected to the second solenoid valve 10;

[0063] The robotic arm 12 is connected to the second cylinder 11; the second cylinder 11 is used to drive the robotic arm 12 to perform packaging operations.

[0064] It should be noted that the robotic arm 12 can be used for bagging dust rings, which involves placing the dust rings in storage locations and loading them into containers.

[0065] In this embodiment, engine 8 must be started and reach a stable operating state before the dust ring gripping operation begins, ensuring the system has sufficient power to execute subsequent actions. Engine 8 must not be shut down until the robotic arm 12 completes the packaging operation and returns to its initial position, ensuring the integrity of the entire work cycle. This strict timing control is crucial in industrial automation systems, ensuring the engine only shuts down after the moving parts of the equipment have stopped, avoiding mechanical damage caused by inertia; a stable power supply ensures the accuracy of gripping and packaging actions, reducing the defect rate; and clear timing relationships make it easier to locate the problem when a fault occurs.

[0066] In this application, the first control circuit includes: a first relay 3 (e.g., Figure 1 The first control circuit includes KM1, a first solenoid valve 4, a first cylinder 5, and a counter 6; the first control circuit receives the first control signal from the programmable logic controller 2 and executes the dust seal grabbing through the relay-solenoid valve-cylinder drive chain, while the counter records the number of grabs. The second control circuit includes a second relay 7 (e.g., KM1), a first solenoid valve 4, a first cylinder 5, and a counter 6; the first control circuit receives the first control signal from the programmable logic controller 2 and executes the dust seal grabbing through the relay-solenoid valve-cylinder drive chain, while the counter records the number of grabs. Figure 1 The second control circuit receives the second control signal from the programmable logic controller 2 (PLC 2) and the engine 8, controlling the switching state of the engine 8 to provide power support for the entire device and ensure the correct execution of the working sequence. The third control circuit includes a third relay 9 (such as KM2). Figure 1 The system includes KM3, second solenoid valve 10, second cylinder 11, and robotic arm 12. The third control loop receives the third control signal from the programmable logic controller 2 and controls the robotic arm to perform automated packaging operations for the dustproof ring through the drive chain, thus completing the final packaging process.

[0067] Optionally, the programmable logic controller 2 is further configured to perform logic verification before controlling the first control loop to perform dust ring grabbing, including: verifying whether the current work order status is "pending packaging"; checking whether the corresponding dust ring parameters exist in the storage unit; confirming that the initial value of the counter is zero; if any verification fails, triggering an alarm and prohibiting the grabbing operation.

[0068] Optionally, the device further includes:

[0069] The second memory 13 is connected to the input terminal of the programmable logic controller 2; the second memory 13 is used to pre-store the dust ring part number, specifications and packaging parameters corresponding to each of the model information.

[0070] Optionally, the device further includes:

[0071] A radio frequency identification (RFID) reader (not shown) or a QR code scanner (not shown) is connected to the input terminal of the programmable logic controller 2, respectively; the RFID reader is used to read the electronic tag information set on the excavator body; the QR code scanner is used to scan the QR code identification on the excavator body;

[0072] The programmable logic controller 2 receives electronic tag information sent by the radio frequency identification reader or receives QR code identification sent by the QR code scanner, and compares and verifies it with the excavator model information currently in operation in the excavator production plan obtained from the first memory 1.

[0073] In this embodiment, the second memory 13 pre-stores the dust ring part number, specifications, and packaging parameters corresponding to each model, such as packaging size and strapping force. The programmable logic controller 2 can directly call the matching parameters to avoid manual input errors. The device body identification is read by an RFID or QR code scanner and cross-verified with the model information in the production plan to ensure that the current work object is consistent with the plan. If the identification information does not match the plan, such as the wrong model is installed, the programmable logic controller 2 immediately interrupts the packaging process and alarms to reduce the mismatch rate of dust rings.

[0074] Optionally, the device further includes:

[0075] A first position sensor 111 is disposed on the second cylinder 11; the first position sensor 111 is used to detect the movement position of the robotic arm 12.

[0076] A visual recognition unit 121 is disposed on the end effector of the robotic arm 12; the visual recognition unit 121 is used to identify the position and status of the packaging bag.

[0077] Optionally, the device further includes:

[0078] The gripping actuator 51 is connected to the first cylinder 5, and the gripping actuator 51 is used to perform the gripping and placement operation of the dustproof ring;

[0079] The second position sensor 52 is disposed at the end of the piston rod of the first cylinder 5; the second position sensor 52 is used to detect the gripping position of the dustproof ring;

[0080] A pressure sensor 53 is disposed on the gripping actuator 51; the pressure sensor 53 is used to detect whether the gripping force of the gripping actuator 51 reaches a preset threshold.

[0081] It should be noted that the gripping actuator 51 is used to automatically grip packaging bags and can be composed of a pneumatic suction cup, a drive motor, a lead screw guide rail, etc.

[0082] In this embodiment, precise control of the entire dust ring packaging process is achieved through multi-sensor fusion and vision-assisted positioning technology. The first position sensor 111 monitors the movement position of the robotic arm 12 in real time, ensuring the gripping path matches the PLC's preset trajectory. The second position sensor 52 precisely locates the dust ring gripping point, compensating for the accumulated error of the robotic arm's end effector. When the sensor detects a position deviation exceeding a threshold, the programmable logic controller 2 can stop or correct the error. The vision recognition unit 121 on the end effector of the robotic arm 12 identifies the opening position and posture of the packaging bag through image processing, assisting the robotic arm in adjusting the gripping angle. The pressure sensor 53 monitors the gripping force in real time; if the force does not reach the preset threshold (e.g., the dust ring is easily deformed and requires a lighter grip), a secondary clamping is triggered to prevent damage to the dust ring. Here, position sensor and vision data are cross-verified to prevent malfunctions caused by a single sensor failure. When the pressure sensor exceeds its limit, the cylinder power is immediately cut off to protect precision components such as cylinder seals from impact. This solution overcomes the limitations of traditional packaging equipment that relies on mechanical limits, achieving flexible production through a "perception-decision-execution" closed loop.

[0083] The solution proposed in this application can automatically send machine information through the MES system, receive signals from the controller, and complete the entire process of bag grabbing and dustproof ring bagging, thereby eliminating manual operations and improving efficiency.

[0084] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0085] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0086] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0087] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0088] The above describes the preferred embodiments of this utility model. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principles of this utility model, and these improvements and modifications are also within the protection scope of this utility model.

Claims

1. A dustproof ring packing device for excavators, characterized in that, include: The first memory (1) is used to store the excavator production plan; A programmable logic controller (2) is provided, the input of which is connected to the first memory (1); the programmable logic controller (2) is used to obtain the model information of the excavator currently operating in the excavator production plan from the first memory (1); The first control loop, the second control loop, and the third control loop are respectively connected to the output terminal of the programmable logic controller (2); the second control loop is connected before the first control loop is turned on, and is disconnected after the third control loop is turned off; The programmable logic controller (2) sends a first control signal, a second control signal, and a third control signal to the first control loop, the second control loop, and the third control loop respectively based on the model information. The first control loop is used to receive the first control signal sent by the programmable logic controller (2) and perform the gripping and quantity control operation of the dust ring; the second control loop is used to receive the second control signal sent by the programmable logic controller (2) and control the engine switch; the third control loop is used to receive the third control signal sent by the programmable logic controller (2) and drive the robot to perform the automated packaging operation of the dust ring.

2. The excavator dustproof ring packaging device according to claim 1, characterized in that, The first control loop includes: The first relay (3) is connected to the output terminal of the programmable logic controller (2); The first solenoid valve (4) is connected to the first relay (3); The first cylinder (5) is connected to the first solenoid valve (4); The counter (6) is connected to the first cylinder (5).

3. The excavator dustproof ring packaging device according to claim 1, characterized in that, The second control loop includes: The second relay (7) is connected to the output terminal of the programmable logic controller (2); The engine (8) is connected to the second relay (7).

4. The excavator dustproof ring packaging device according to claim 1, characterized in that, The third control loop includes: The third relay (9) is connected to the output terminal of the programmable logic controller (2); The second solenoid valve (10) is connected to the third relay (9); The second cylinder (11) is connected to the second solenoid valve (10); A robotic arm (12) is connected to a second cylinder (11); the second cylinder (11) is used to drive the robotic arm (12) to perform packaging operations.

5. The excavator dustproof ring packaging device according to claim 1, characterized in that, The device further includes: The second memory (13) is connected to the input terminal of the programmable logic controller (2); the second memory (13) is used to pre-store the dust ring part number, specifications and packaging parameters corresponding to each model information.

6. The excavator dustproof ring packaging device according to claim 1, characterized in that, The device further includes: An RFID reader or a QR code scanner is connected to the input terminal of the programmable logic controller (2); the RFID reader is used to read the electronic tag information set on the excavator body; the QR code scanner is used to scan the QR code mark on the excavator body. The programmable logic controller (2) receives electronic tag information sent by the radio frequency identification reader or receives QR code identifier sent by the QR code scanner, and compares and verifies it with the excavator model information currently operating in the excavator production plan obtained from the first memory (1).

7. The excavator dust ring packaging device according to claim 4, characterized in that, The device further includes: A first position sensor (111) is disposed on the second cylinder (11); the first position sensor (111) is used to detect the movement position of the robotic arm (12); A visual recognition unit (121) is disposed on the end effector of the robotic arm (12); the visual recognition unit (121) is used to identify the position and status of the packaging bag.

8. The excavator dustproof ring packaging device according to claim 2, characterized in that, The device further includes: A gripping actuator (51) is connected to the first cylinder (5), and the gripping actuator (51) is used to perform the gripping and placement operation of the dust ring; The second position sensor (52) is disposed at the end of the piston rod of the first cylinder (5); the second position sensor (52) is used to detect the gripping position of the dust ring; A pressure sensor (53) is disposed on the gripping actuator (51); the pressure sensor (53) is used to detect whether the gripping force of the gripping actuator (51) reaches a preset threshold.

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