A PLC-controlled flipping mechanism for an FDY automated packaging line

Abstract

This utility model discloses a PLC-controlled flipping mechanism for an FDY automated packaging line, including a flipping frame, a rotating arm, a cylinder, a reducer, a photoelectric sensor, and a PLC controller. The mechanism achieves 180° flipping of the silk cake through synchronous lifting of the cylinder and driving of the rotating arm by the reducer. With the help of photoelectric sensors and limit switches to detect the position, it solves the problem of the orientation of the tail silk during palletizing. The structure is compact, and it can be seamlessly integrated into existing production lines in a single flip, significantly improving the efficiency of automated packaging.

Description

Technical Field

[0001] This utility model relates to the field of chemical fiber production equipment technology, and in particular to a flipping mechanism for an automated packaging line of FDY polyester filament. Background Technology

[0002] Traditional FDY polyester filament packaging relies on manual adjustment of the filament cake orientation, which is inefficient and labor-intensive. Existing automated packaging lines lack a flipping mechanism, resulting in the tail filament of the filament cake not conforming to palletizing requirements. Some manufacturers have attempted to modify their equipment, but these efforts suffer from problems such as complex structure, poor compatibility, and high safety risks. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a PLC-controlled flipping mechanism for an FDY automated packaging line, featuring a compact structure, stable operation, and automatic flipping of the silk cake.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0005] This utility model discloses a PLC-controlled flipping mechanism for an FDY automated packaging line, comprising a frame and a flipping mechanism mounted on the frame, wherein the flipping mechanism includes:

[0006] Mechanical flipping assembly: includes a flipping frame, rotating arms installed at the left and right ends of the flipping frame, a reducer and a motor for driving the rotating arms to rotate, and at least two cylinders for controlling the lifting and lowering of the rotating arms. At least five trays for receiving the silk cake are connected to the flipping frame.

[0007] Detection components include limit switches mounted on the frame, photoelectric sensors for detecting the position of the yarn cake, and magnetic switches for detecting the lifting and lowering of the cylinder.

[0008] Control components: including a PLC controller, a frequency converter connected to the PLC controller, and safety relays;

[0009] The rotating arm is connected to the frame via a bearing seat, and the motor is connected to the reducer and mounted on the frame. The motor drives the rotating arm to achieve 180° rotation via the reducer.

[0010] The cylinders are symmetrically distributed on both sides of the tilting frame and the telescopic rods of the cylinders are connected to the frame. The cylinders receive the lifting signal from the PLC controller through the magnetic switch connected to the cylinders to achieve synchronous lifting.

[0011] The photoelectric sensor is located below the flipping frame and is used to detect the status of the tray shredded cake and feed back the signal to the PLC controller.

[0012] The limit switch, photoelectric sensor, magnetic switch, PLC controller, frequency converter and safety relay are electrically connected.

[0013] Preferably, the cylinder is model ACQ125X300S22-DV, the reducer is model SEW 57 / TDRN71M4, and the motor is model DRN7M4.

[0014] Preferably, two small roller conveyors are provided below the flipping frame, and the photoelectric sensor is installed on the small roller conveyors. The photoelectric sensor includes five detection points, and the flipping mechanism is prohibited from descending when any one of the detection points detects the silk cake.

[0015] Preferably, the limit switch is an Omron normally closed limit switch, which cuts off the input signal to the PLC controller and stops the flipping action when triggered.

[0016] Preferably, the flipping mechanism can be linked with the KUKA wire-grabbing robot to flip the spindle cake once, with a working cycle of 10 seconds per cycle.

[0017] Beneficial effects: The symmetrical cylinder and rotating arm structure ensures the stability of the flipping and reduces the failure rate; the dual detection of photoelectric sensors and limit switches avoids mechanical collisions; it has a compact structure and stable operation of the flipping mechanism, realizing the automatic flipping of the silk cake and other technical features. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a block diagram of the electrical principle of this utility model. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of the utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "left", "right", etc., 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 the utility model and simplifying the description, and do not indicate or imply that the device 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 the utility model.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] In the process of FDY polyester filament being manually dropped from the winding machine onto the trolley, the tail yarn faces towards the trolley after dropping. This dropping method results in the tail yarn of the yarn cake facing downwards when the trolley enters the packaging line. However, in automated packaging lines, the tail yarn of the yarn cake is required to face upwards during stacking. This application discloses a flipping mechanism for automated packaging lines of FDY polyester filament, which achieves the process of tail yarn facing upwards during stacking in automated packaging lines. In actual continuous packaging processes, it can achieve a working cycle of 10 seconds / time, flipping 10 spindles simultaneously in one cycle, meeting the needs of industrial production.

[0024] This application's technical solution achieves 180° rotation of the wire cake through the cooperation of a mechanical structure and a control system, solving the problem of tail wire orientation during palletizing. Specifically, the mechanical structure employs a symmetrical lifting mechanism driven by a cylinder, combined with a reducer and motor to achieve 180° rotation of the rotating arm; the detection system uses photoelectric sensors to detect the wire cake position, and limit switches and magnetic switches provide positioning protection during lifting and rotation; the control logic uses a PLC controller to control the start and stop of the cylinder, motor, and frequency converter based on sensor signals, ensuring synchronized operation.

[0025] like Figure 1-2 The diagram illustrates a specific embodiment of a PLC-controlled flipping mechanism for an FDY automated packaging line. This embodiment describes a PLC-controlled flipping mechanism for an FDY automated packaging line, comprising:

[0026] Mechanical flipping assembly: includes a flipping frame 1, a rotating arm 2 mounted on the flipping frame 1, a reducer 3 and a motor 4 for driving the rotating arm 2 to rotate, and at least two cylinders 5 for controlling the lifting and lowering of the rotating arm 2; at least five trays for receiving the silk cake are connected to the flipping frame 1.

[0027] Detection components include a limit switch 6 mounted on the frame, a photoelectric sensor 7 for detecting the position of the yarn cake, and a magnetic switch 8 for detecting the lifting and lowering of the cylinder 5.

[0028] Control components include a PLC controller 9, a frequency converter 10 connected to the PLC controller 9, and a safety relay 11;

[0029] The rotating arm 2 is connected to the frame via a bearing seat 12, and the motor 4 is connected to the reducer 3. The motor 4 drives the rotating arm 2 to achieve a 180° rotation via the reducer 3.

[0030] The cylinders 5 are symmetrically distributed on both sides of the tilting frame 1 and the telescopic rods of the cylinders 5 are connected to the frame. The magnetic switch 8 connected to the cylinder 5 receives the lifting signal from the PLC controller 9 to achieve synchronous lifting.

[0031] The photoelectric sensor 7 is located below the flipping frame 1 and is used to detect the status of the tray shredded cake and feed back the signal to the PLC controller 9.

[0032] The limit switch 6, photoelectric sensor 7, magnetic switch 8, PLC controller 9, frequency converter 10, and safety relay 11 are electrically connected. This application utilizes the functions of traditional electrical components without limiting their program instructions, allowing for selection and replacement according to actual usage scenarios.

[0033] Limit switch 6 function description: Limit switch 6, as a physical position detection device, is mounted on the frame to detect the limit positions of the tilting mechanism and its components (such as cylinder 5, rotating arm 2, etc.). When the tilting mechanism reaches a preset limit position, limit switch 6 is triggered, sending a signal to PLC controller 9. Function: To ensure the tilting mechanism operates within a safe limit range, preventing over-travel or damage. When triggered, limit switch 6 can cut off the input signal to PLC controller 9, immediately stopping the tilting action and providing physical safety protection.

[0034] Photoelectric sensor 7 description: Photoelectric sensor 7 is installed on the small roller conveyor below the flipping frame 1 to detect the presence and position of the yarn cake on the tray. It contains five detection points and can provide real-time feedback of the yarn cake's status information to the PLC controller 9. Function: When any detection point detects a yarn cake, photoelectric sensor 7 sends a signal to the PLC controller 9, triggering the cylinder 5 to rise, preparing for the flipping. After the flipping is completed, photoelectric sensor 7 checks the status of the yarn cake on the tray again to ensure there is no yarn cake, then triggers cylinder 5 to descend, preparing for the next flip.

[0035] Magnetic switch 8 function description: Magnetic switch 8 is usually installed at or near the end of the telescopic rod of cylinder 5 to detect whether cylinder 5 has reached the correct lifting position. When cylinder 5 reaches the predetermined position, magnetic switch 8 is triggered, sending a signal to PLC controller 9. Purpose: To ensure the accurate lifting and lowering of cylinder 5, providing precise position feedback for the tilting mechanism, thereby achieving precise control of synchronous lifting and tilting actions.

[0036] PLC Controller 9 Function Description: PLC Controller 9 is the core control unit of the entire tilting mechanism. It is responsible for receiving signals from sensors such as photoelectric sensor 7, limit switch 6, and magnetic switch 8, and controlling the start and stop of cylinder 5, motor 4, and frequency converter 10 according to preset control logic. Function: Based on sensor signals, PLC Controller 9 executes the control logic for the tilting mechanism's lifting, rotating, and other actions. It monitors the status of the tilting mechanism to ensure that the tilting action can be stopped immediately in abnormal situations (such as limit switch triggering).

[0037] Inverter 10 Function Description: Inverter 10 is connected to motor 4 and is used to adjust the speed and torque of motor 4 to achieve smooth rotation of rotating arm 2. Function: By adjusting the speed of motor 4, inverter 10 can optimize the efficiency and smoothness of the rotation action, ensuring that the silk cake is not damaged during the rotation process.

[0038] Safety Relay 11 Function Description: Safety Relay 11 is a safety control element used to cut off the power supply to the tilting mechanism when the PLC controller 9 malfunctions or malfunctions, ensuring the safety of equipment and personnel. Function: It provides an additional safety protection mechanism. When the PLC controller 9 or related circuits malfunction, Safety Relay 11 can quickly cut off the power supply to prevent the tilting mechanism from continuing to operate and causing danger.

[0039] The technical solution of this application is as follows: The tilting frame 1 is fixed to the frame at the end of the packaging line conveyor belt; cylinders 5 are symmetrically installed and connected to rotating arms 2 (e.g., ...). Figure 1 The frame shown is a rectangular frame, with a cylinder 5 installed at each of the four vertices of the rectangular frame. Two sets of flipping mechanisms are installed on the frame. Electrical connection: The PLC controller 9 is connected to the photoelectric sensor 7, limit switch 6, magnetic switch 8, and solenoid valve 13 via cables. Linkage debugging: After startup, the KUKA robot or other capable robotic arms can be used to grab the silk cake. When the photoelectric sensor 7 detects the silk cake on the tray, it triggers the cylinder 5 to rise, and then the motor 4 drives the rotating arm 2 to rotate 180°. During subsequent automated packaging line palletizing, the tail of the silk cake faces upward, meeting the packaging requirements. After completion, when the photoelectric sensor 7 detects that there is no silk cake on the tray, it triggers the cylinder 5 to fall, and the motor 4 drives the rotating arm 2 to rotate 180°. After completion, the cylinder 5 rises to reset. Safety verification: Simulate the photoelectric sensor failure scenario to verify the forced stop function of the limit switch 6.

[0040] In a preferred embodiment, the cylinder 5 is model ACQ125X300S22-DV, the reducer 3 is model SEW 57 / T DRN71M4, and the motor 4 is model DRN7M4.

[0041] In a preferred embodiment, two small roller conveyors are provided below the flipping frame 1, and the photoelectric sensor is installed on the small roller conveyors. The photoelectric sensor 7 includes five detection points, and the flipping mechanism is prohibited from descending when any one of the detection points detects the silk cake.

[0042] In a preferred embodiment, the limit switch 6 is an Omron normally closed limit switch, which cuts off the input signal of the PLC controller 9 when triggered, stopping the flipping action.

[0043] Preferably, the flipping mechanism is linked with the KUKA wire-grabbing robot 15, flipping 10 spindles of wire at a time, with a working cycle of 10 seconds per cycle.

[0044] Finally, it should be noted that this utility model is not limited to the above embodiments, and many variations are possible. All variations that can be directly derived or conceived by those skilled in the art from the disclosure of this utility model should be considered within the protection scope of this utility model.

Claims

1. A PLC-controlled flipping mechanism for an FDY automated packaging line, characterized in that, Includes a frame and a tilting mechanism mounted on the frame, the tilting mechanism comprising: Mechanical flipping assembly: includes a flipping frame (1), a rotating arm (2) installed at the left and right ends of the flipping frame (1), a reducer (3) and a motor (4) for driving the rotating arm (2) to rotate, and at least two cylinders (5) for controlling the lifting and lowering of the rotating arm (2). At least five trays for receiving the silk cake are connected on the flipping frame (1). Detection components include a limit switch (6) mounted on the frame, a photoelectric sensor (7) for detecting the position of the yarn cake, and a magnetic switch (8) for detecting the lifting and lowering of the cylinder (5). Control components include a PLC controller (9), a frequency converter (10) connected to the PLC controller (9), and a safety relay (11); The rotating arm (2) is connected to the frame via a bearing seat (12), and the motor (4) is connected to the reducer (3) and mounted on the frame. The motor (4) drives the rotating arm (2) to rotate 180° via the reducer (3). The cylinders (5) are symmetrically distributed on both sides of the flipping frame (1) and the telescopic rods of the cylinders (5) are connected to the frame. The magnetic switch (8) connected to the cylinders (5) receives the lifting signal from the PLC controller (9) to achieve synchronous lifting. The photoelectric sensor (7) is located below the flipping frame (1) and is used to detect the status of the tray shredded cake and feed back the signal to the PLC controller (9); The limit switch (6), photoelectric sensor (7), magnetic switch (8), PLC controller (9), frequency converter (10) and safety relay (11) are electrically connected.

2. The flipping mechanism according to claim 1, characterized in that: The cylinder (5) is model ACQ125X300S22-DV, the reducer (3) is model SEW 57 / T DRN71M4, and the motor (4) is model DRN7M4.

3. The flipping mechanism according to claim 1 or 2, characterized in that: The flipping frame (1) has two small roller tracks below it. The photoelectric sensor (7) is installed on the small roller tracks. The photoelectric sensor (7) includes five detection points. When any one of the detection points detects the silk cake, the flipping mechanism is prohibited from descending.

4. The flipping mechanism according to claim 1 or 2, characterized in that: The limit switch (6) is an Omron normally closed limit switch. When triggered, it cuts off the input signal of the PLC controller (9) and stops the flipping action.

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