A level interlock for a twist bow of a twist-off machine

Abstract

This utility model relates to the field of winch retraction mechanisms, specifically to a horizontal interlocking device for the winch in a winch retraction mechanism. The device includes a frame and a controller. The frame houses the winch hull, the winch rotor, and a lifting platform. One end of the winch rotor is equipped with a carbon brush wheel. A photosensitive probe is mounted on the frame. A protrusion is located on the circumference of the carbon brush wheel, and the protrusion cooperates with the photosensitive probe. When the winch rotor is in a horizontal position, the photosensitive probe detects the protrusion. This utility model, through forced photosensitive detection and interlocking with the lifting platform's ascent, completely eliminates the risk of the winch being compressed, deformed, or damaged due to operator negligence in failing to place the winch in a horizontal position before starting the lifting platform.

Description

Technical Field

[0001] This utility model relates to the field of unwinding winches, specifically to a horizontal interlocking device for the winch of an unwinding winch. Background Technology

[0002] During the production process of a winch rewinding machine, an empty pan is raised or a full pan is lowered via a motor-driven lifting platform at the start or end of the process. To ensure safety and prevent equipment damage, the high-speed rotating winch must be manually adjusted to a horizontal position before the lifting platform operates. However, because the winch does not automatically stop at a horizontal position after the machine stops, operators can easily compress the winch during the lifting process if they are not careful (e.g., forgetting to adjust it or adjusting it incorrectly), causing deformation or even damage. This not only increases equipment maintenance costs but also seriously affects the continuity of production and product quality. Current technology lacks an effective automatic detection and interlocking mechanism to prevent equipment damage caused by such misoperation. Summary of the Invention

[0003] This utility model aims to provide a horizontal interlocking device for the drawbar of a retractable winch, the specific solution of which is as follows:

[0004] A horizontal interlocking device for a winch for a winch retraction mechanism includes a frame and a controller. The frame is equipped with a winch hull, a winch rotating body, and a lifting platform. One end of the winch rotating body is equipped with a carbon brush wheel. The frame is equipped with a photosensitive probe. The carbon brush wheel has a protrusion on its circumference. The protrusion and the photosensitive probe are configured to cooperate. When the winch rotating body is in a horizontal position, the photosensitive probe detects the protrusion.

[0005] The winch hull includes a fixed platform, on which a wire storage wheel and a tensioning device are provided. A wire storage drum clamping device is provided on one side of the fixed platform (the wire storage drum clamping device clamps the wire storage drum during operation). The wire storage drum clamping device is used to clamp the wire storage drum.

[0006] The lifting platform is used for lifting the wire storage drum.

[0007] The controller is a Siemens S7-200SMART.

[0008] The controller only controls the lifting platform to rise when the light sensor detects a protrusion.

[0009] This utility model has the following advantages:

[0010] 1. Effectively prevents pantograph damage: Through mandatory light-sensing detection and interlocking with the lifting platform, the risk of pantograph being compressed, deformed, or damaged due to operator negligence in not placing the pantograph in a horizontal position before starting the lifting platform is completely eliminated.

[0011] 2. Improve equipment safety and reliability: Automated detection and interlocking reduce human intervention, thereby improving the safety and stability of equipment operation.

[0012] 3. Ensure production continuity and quality: reduce downtime and maintenance time caused by cable reel damage, improve equipment utilization and production efficiency; and avoid adverse effects on cable twisting quality caused by cable reel deformation.

[0013] 4. Simple structure and reliable implementation: The existing carbon brush wheel and its protrusions on the equipment are used as the detection reference point. It can be realized by adding a light sensor and modifying the control logic (adding interlocking function). The modification cost is low, easy to implement and highly reliable. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a horizontal interlocking device for a winch in a retractable winch machine according to the present invention;

[0015] The components are labeled as follows: 1. Carbon brush wheel; 2. Light sensor; 3. Lifting platform; 4. Winch rotating body; 5. Wire storage drum; 6. Wire storage drum clamping device; 7. Wire storage wheel; 8. Tensioning device; 9. Winch hull. Detailed Implementation

[0016] The following is combined Figure 1 Further explanation:

[0017] A horizontal interlocking device for a winch in a rewinding winch machine, comprising:

[0018] Winch Rotating Body 4: In practice, it is driven by an electric motor through a toothed belt and rotates at high speed around the winch hull.

[0019] Carbon brush wheel 1: It is fixedly installed on the bow rotating body 4 and rotates synchronously with the bow rotating body 4. It has a protrusion on its circumference.

[0020] Photosensitive probe 2: Fixedly mounted on the frame, its detection beam is aligned with the circumferential path of the carbon brush wheel 1; the photosensitive probe 2 is configured to generate a detection signal indicating that "the bow rotator 4 is in a horizontal position" when the carbon brush wheel 1 rotates until its protrusion passes through the detection beam.

[0021] Lifting platform 3: Used to support the wire storage drum 5 and can be lifted by a drive mechanism;

[0022] The control system (model Siemens S7-200SMART) is connected to the drive mechanism of the light sensor 2 and the lifting platform 3. The control system is configured to receive the detection signal from the light sensor 2 and implement interlocking control accordingly. Specifically, the lifting platform 3 is allowed to start the lifting operation from the bottom end position only when a detection signal indicating that "the boom rotator 4 is in a horizontal position" is received. If the signal is not received, the lifting platform 3 is prohibited from rising from the bottom end position.

[0023] As shown in the figure, the carbon brush wheel 1 is fixed to one side of the winch rotating body 4 and rotates synchronously with it. The light sensor 2 is fixedly mounted on the frame, and its beam is aligned with the circumferential path of the carbon brush wheel 1. The lifting platform 3 is located at the bottom of the equipment. The wire storage drum 5, the wire storage drum clamping device 6, the wire storage wheel 7, and the tension device 8 are conventional components of the winch machine (forming the winch hull 9), and their positional relationship is shown in the figure.

[0024] The key point is that when the light sensor 2 detects the protrusion on the carbon brush wheel 1 (located on the circumference of the carbon brush wheel 1), it determines that the bow rotating body 4 is in a horizontal position, and only then is the lifting platform 3 allowed to rise from the bottom.

[0025] The operation steps of this utility model are as follows:

[0026] 1. Install the light sensor: Install the light sensor 2 on the frame near the rotation path of the carbon brush wheel 1, and adjust the angle and focal length of the sensor so that its beam can stably illuminate the circumferential surface of the carbon brush wheel 1.

[0027] 2. Calibrate the horizontal position: Manually adjust the bow rotator 4 to a precise horizontal position. Observe the position of a specific protrusion on the carbon brush wheel 1 relative to the light beam of the photosensitive probe 2 at this position. Calibration can be performed by marking the protrusion or recording the probe signal status. Ensure that the photosensitive probe 2 only generates a valid signal when the protrusion passes through the light beam.

[0028] 3. Control System Modification: Connect the output signal of the optical sensor 2 to the control system of the winch retraction machine (usually a PLC or dedicated controller). Modify the control program and add interlocking logic: When the lifting platform 3 is at the bottom end position and the operator issues an upward command, the system first checks whether the optical sensor 2 outputs a valid signal indicating that "the winch rotating body 4 is horizontal".

[0029] 4. If a valid signal is received: the control system allows the lifting drive mechanism to start, and the lifting platform 3 rises normally.

[0030] 5. If there is no valid signal (or the signal is invalid): The control system locks the lifting operation of the lifting platform 3 and prompts the operator through the indicator light operation interface "The boom is not level, lifting is prohibited".

[0031] 6. Operating Procedure: Before the operator needs to raise the lifting platform 3 (such as to change the cable reel), the operator must first start the pantograph rotator 4 for a short period of time or manually rotate the pantograph rotator 4 until the control system detects a valid signal from the light sensor 2 (indicating that the pantograph is level), and then the lifting platform can be successfully raised.

[0032] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A horizontal interlocking device for a winch in a rewinding winch machine, characterized in that: The device includes a frame and a controller. The frame is equipped with a winch hull, a winch rotator, and a lifting platform. One end of the winch rotator is equipped with a carbon brush wheel. The frame is equipped with a photosensitive probe. The carbon brush wheel has a protrusion on its circumference. The protrusion and the photosensitive probe are configured to work together. When the winch rotator is in a horizontal position, the photosensitive probe detects the protrusion.

2. The horizontal interlocking device for a winch in a retractable winch machine as described in claim 1, characterized in that: The winch hull includes a fixed platform, on which a wire storage wheel and a tensioning device are provided. A wire storage drum clamping device is provided on one side of the fixed platform, which is used to clamp the wire storage drum.

3. The horizontal interlocking device for a winch in a retractable winch machine as described in claim 1, characterized in that: The lifting platform is used for lifting the wire storage drum.

4. The horizontal interlocking device for a winch in a retractable winch machine as described in claim 1, characterized in that: The controller is a Siemens S7-200SMART.

5. The horizontal interlocking device for a winch in a retractable winch machine as described in claim 1, characterized in that: The controller only controls the lifting platform to rise when the light sensor detects a protrusion.

Images