Cable take-up stand with safety detection device and safety detection method thereof

Abstract

The invention relates to the field of cable production and manufacturing, in particular to a cable take-up stand with a safety detection device and a safety detection method of the cable take-up stand. The cable take-up stand with the safety detection device comprises a stand body, and the stand body is provided with a first optoelectronic switch, a second optoelectronic switch, an alarm device and an emergency stop device. When the first photoelectric switch detects a foreign matter, the alarm device starts to give an alarm; and when the second photoelectric switch detects the foreign matter, the sudden stop device is powered off and stops suddenly. The situation that personnel enter a dangerous area by mistake or foreign matter is wound into the take-up reel can be detected in real time, the accident occurrence probability is effectively reduced through double protection of alarming or sudden stop under the corresponding situation, real-time detection and quick response to the dangerous situation are achieved, and the safety of operators is effectively guaranteed. The cable take-up frame is simple in structure, small in overall change, suitable for various cable take-up frames and high in actual popularization value.

Description

Technical Field

[0001] The invention relates to the field of cable production and manufacturing, and in particular to a cable take-up rack with a safety detection device and a safety detection method thereof. Background Art

[0002] Cable take-ups must be used in the production of cable conductor insulation, shielding, armoring, sheathing and other processes. Cable take-ups are essential equipment in the production process of each cable process, and they are also equipment with high risk points and great safety hazards in the production process. In the production process of different processes, operators need to face the take-up reel without stopping near the cable take-up reel to complete a series of complex tasks such as arranging wires, placing aluminum-plastic film bags, wrapping packaging film, placing kraft paper, and checking the appearance surface quality. Therefore, there is a major safety hazard of "people being involved in the take-up reel" in this area. According to relevant surveys, in the wire and cable production industry, all types of operations at the cable take-up reel are high-risk operations with extremely high safety hazards. Work-related deaths are common in various cable production companies.

[0003] Therefore, those skilled in the art are committed to developing a cable take-up rack with a safety detection device and a safety detection method for a cable take-up rack. Summary of the invention

[0004] In view of the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is to provide a cable take-up rack with a safety detection device and a safety detection method thereof.

[0005] To achieve the above object, the present invention provides a cable take-up rack with a safety detection device, comprising a frame, on which a first photoelectric switch, a second photoelectric switch, an alarm device and an emergency stop device are arranged; when the first photoelectric switch detects a foreign object, the alarm device starts an alarm; when the second photoelectric switch detects a foreign object, the emergency stop device is powered off and stops. The frame provides an installation base for the entire device, and the first photoelectric switch and the second photoelectric switch provide two different safety protections.

[0006] Preferably, the frame includes a base, a vertically extending column is provided on the base, and a take-up reel is rotatably fitted on the column. The base is used to bear and support the overall structure, and the column is used to fix the take-up reel.

[0007] Preferably, the base includes a first ground beam and a second ground beam, the first ground beam is provided with a vertically extending support arm, and the second ground beam is provided with a control box; the column includes a first support beam and a second support beam, the first support beam and the second support beam are respectively connected to the first ground beam and the second ground beam.

[0008] Preferably, the first photoelectric switch includes a first signal emitting part and a first signal receiving part which are arranged opposite to each other; the first signal emitting part is arranged at one end of the support arm away from the first ground beam; and the first signal receiving part is horizontally arranged on the control box.

[0009] Preferably, the second photoelectric switch includes a second signal emitting part and a second signal receiving part which are arranged opposite to each other; the second signal emitting part is arranged on the first supporting beam; and the second signal receiving part is horizontally arranged on the second supporting beam.

[0010] Preferably, the second signal transmitting part is 3-5 cm away from the highest point of the take-up reel. Reserving this distance can effectively filter out the influence of some fine debris or small parts on the second photoelectric switch while ensuring the detection quality.

[0011] Preferably, the alarm device includes a reset button, the reset button is electrically connected to a first intermediate relay, the first intermediate relay is electrically connected to an audible and visual alarm; the emergency stop device includes a second intermediate relay, the second intermediate relay is electrically connected to a PLC controller.

[0012] Preferably, the sound and light alarm includes a buzzer and a flashing light, which emit buzzing and flashing signals to warn the operator or other nearby operators.

[0013] The present invention also provides a cable take-up rack safety detection method, comprising the following steps:

[0014] S1. A first photoelectric switch is arranged on the base of the cable take-up rack;

[0015] S2. A second photoelectric switch is arranged on the column of the cable take-up rack;

[0016] S3, when the first photoelectric switch is triggered, the sound and light alarm is activated;

[0017] S4. When the second photoelectric switch is triggered, the PLC controller controls the cable take-up rack to stop running.

[0018] Preferably, the method further comprises the following steps:

[0019] S5. The alarm signal of the sound and light alarm can be eliminated by pressing the reset button.

[0020] The beneficial effects of the present invention are as follows: the present invention can detect in real time the situation that a person mistakenly enters a dangerous area or a foreign object is wound into the take-up reel, and in corresponding situations, through the dual protection of alarm or emergency stop, the probability of accidents is effectively reduced, and real-time detection and rapid response to dangerous situations are achieved, effectively ensuring the safety of operators. In addition, the present invention has a simple structure, relatively small overall changes, and is applicable to various types of cable take-up racks, and has a high practical promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a specific implementation mode of the present invention.

[0022] Figure 2 This is a circuit connection diagram of an alarm device in a specific embodiment of the present invention;

[0023] Figure 3 It is a circuit connection diagram of an emergency stop device in a specific embodiment of the present invention.

[0024] 1. Frame; 11. Base; 111. First ground beam; 111a. Support arm; 112. Second ground beam; 112a. Control box; 12. Column; 121. First support beam; 122. Second support beam; 13. Take-up reel; 2. First photoelectric switch; 21. First signal transmitter; 22. First signal receiver; 3. Second photoelectric switch; 31. Second signal transmitter; 32. Second signal receiver; 4. Alarm device; 41. Reset button; 42. First intermediate relay; 43. Sound and light alarm; 5. Emergency stop device; 51. Second intermediate relay; 52. PLC controller. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific manner, and therefore cannot be understood as limiting the present invention. The terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] like Figure 1As shown, a cable take-up rack with a safety detection device includes a frame 1, and the frame 1 includes a base 11 and a column 12. The base 11 includes a first ground beam 111 and a second ground beam 112. The first ground beam 111 and the second ground beam 112 are load-bearing members responsible for providing support for the main structure. The first ground beam 111 is provided with a vertically extending support arm 111a, and the second ground beam 112 is correspondingly provided with a control box 112a. The support arm 111a and the control box 112a provide an installation foundation for the subsequent first photoelectric switch 2.

[0027] The column 12 includes a first support beam 121 and a second support beam 122, which are respectively connected to the first ground beam 111 and the second ground beam 112 to form the frame 1. A take-up drum 13 is rotatably provided between the first support beam 121 and the second support beam 122, and the take-up drum 13 neatly collects the cables by rotating.

[0028] like Figure 1-3 As shown, the frame 1 is provided with a first photoelectric switch 2, a second photoelectric switch 3, an alarm device 4 and an emergency stop device 5. Among them, the first photoelectric switch 2 includes a first signal transmitting part 21 and a first signal receiving part 22 arranged opposite to each other, the first signal transmitting part 21 is arranged at the end of the arm 111a away from the first ground beam 111, and the first signal receiving part 22 is correspondingly arranged on the control box 112a, and the first signal transmitting part 21 is horizontally aligned with the first signal receiving part 22. By setting the first photoelectric switch 2, people or foreign objects entering the alarm area can be detected in real time. The first photoelectric switch 2 is connected to the alarm device 4. When the first photoelectric switch 2 detects that a foreign object or a person enters the alarm area through the first photoelectric switch 2, the alarm device 4 starts the alarm. The alarm device 4 includes a reset button 41, the reset button 41 is electrically connected to a first intermediate relay 42, and the first intermediate relay 42 is electrically connected to an audible and visual alarm 43. When the first photoelectric switch 2 is triggered, the first intermediate relay 42 turns on the sound and light alarm 43, which includes a buzzer and a flashing light. The buzzer and flashing signals are emitted to alert the current and nearby operators. The operator can eliminate the alarm signal by pressing the reset button 41.

[0029] The second photoelectric switch 3 includes a second signal transmitting part 31 and a second signal receiving part 32 which are arranged opposite to each other. The second signal transmitting part 31 is arranged on the first support beam 121, 3-5 cm away from the highest point of the take-up reel 13. The second signal receiving part 32 is correspondingly arranged on the second support beam 122. The second signal transmitting part 31 is horizontally aligned with the second signal receiving part 32. The second photoelectric switch 3 is connected to the emergency stop device 5, which includes a second intermediate relay 51. The second intermediate relay 51 is electrically connected to a PLC controller 52. When the second photoelectric switch 3 is triggered or a foreign object is detected, the cable take-up rack of the PLC controller 52 stops running.

[0030] The present invention also provides a cable take-up rack safety detection method, comprising the following steps:

[0031] S1, setting a first photoelectric switch 2 on the base 11 of the cable take-up rack;

[0032] S2, setting a second photoelectric switch 3 on the column 12 of the cable take-up rack;

[0033] S3, when the first photoelectric switch 2 is triggered, the sound and light alarm 43 is started;

[0034] S4. When the second photoelectric switch 3 is triggered, the PLC controller 52 is started to control the cable take-up rack to stop running.

[0035] S5. Eliminate the alarm signal of the sound and light alarm 43 through the reset button 41.

[0036] When in use, when an operator passes through the first photoelectric switch 2 and mistakenly enters the cable take-up rack, the alarm device 4 will be triggered, causing the sound and light alarm 43 to beep and flash. Its functions are: first, to remind the operator that he has entered the dangerous area of ​​the cable take-up rack and to evacuate in time. If the operator evacuates the dangerous area, the alarm state of the alarm device 4 can be released by pressing the reset button 41; second, if the operator fails to evacuate the dangerous area of ​​the cable take-up rack in time and fails to reset the alarm device 4 in time to eliminate the alarm, the surrounding operators will rush to the scene for emergency disposal as soon as possible after hearing or seeing the alarm of the sound and light alarm 43.

[0037] On the cable take-up rack column 12, according to the height of the reel in the production process, the second photoelectric switch 3 is fixed and installed, and the height of the second photoelectric switch 3 is slightly higher than the highest point of the reel by 3-5 cm. After the first photoelectric switch 2 is triggered, if there are no other personnel on site who can take emergency measures in time, when foreign objects or people are involved in the take-up reel 13, the second photoelectric switch 3 will be triggered immediately, and the second photoelectric switch 3 will be connected to the emergency stop device 5. The PLC controller 52 in the emergency stop device 5 controls the cable take-up rack to stop running to avoid people getting entangled and injured or killed.

[0038] The present invention can detect in real time whether an operator has mistakenly entered a dangerous area or a foreign object has been wound into the take-up reel 13. In corresponding situations, the double protection of alarm or emergency stop is used to effectively reduce the probability of accidents, realize real-time detection and rapid response to dangerous situations, and effectively ensure the safety of operators. In addition, the present invention has a simple structure and relatively small overall changes, and is suitable for various types of cable take-up racks, and has a high practical promotion value.

[0039] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A cable take-up rack with a safety detection device, characterized in that: The invention comprises a frame (1), on which a first photoelectric switch (2), a second photoelectric switch (3), an alarm device (4) and an emergency stop device (5) are provided; when the first photoelectric switch (2) detects a foreign object, the alarm device (4) starts an alarm; when the second photoelectric switch (3) detects a foreign object, the emergency stop device (5) cuts off power and stops the vehicle urgently.

2. The cable take-up stand with a safety detection device according to claim 1, characterized in that: The frame (1) comprises a base (11), on which a vertically extending column (12) is provided, and on which a wire take-up drum (13) is rotatably fitted.

3. The cable take-up rack with a safety detection device as claimed in claim 2, characterized in that: The base (11) comprises a first ground beam (111) and a second ground beam (112); the first ground beam (111) is provided with a vertically extending support arm (111a), and the second ground beam (112) is provided with a control box (112a); The column (12) comprises a first support beam (121) and a second support beam (122), wherein the first support beam (121) and the second support beam (122) are respectively connected to the first ground beam (111) and the second ground beam (112).

4. The cable take-up stand with a safety detection device as claimed in claim 3, characterized in that: The first photoelectric switch (2) comprises a first signal transmitting part (21) and a first signal receiving part (22) which are arranged opposite to each other; the first signal transmitting part (21) is arranged at an end of the support arm (111a) away from the first ground beam (111); and the first signal receiving part (22) is horizontally arranged on the control box (112a).

5. The cable take-up stand with a safety detection device according to claim 3 or 4, characterized in that: The second photoelectric switch (3) comprises a second signal emitting part (31) and a second signal receiving part (32) which are arranged opposite to each other; the second signal emitting part (31) is arranged on the first supporting beam (121); and the second signal receiving part (32) is horizontally arranged on the second supporting beam (122).

6. The cable take-up stand with a safety detection device as claimed in claim 5, characterized in that: The second signal transmitting portion (31) is 3-5 cm away from the highest point of the take-up reel (13).

7. The cable take-up stand with a safety detection device according to claim 1, characterized in that: The alarm device (4) comprises a reset button (41), the reset button (41) is electrically connected to a first intermediate relay (42), and the first intermediate relay (42) is electrically connected to an audible and visual alarm (43); The emergency stop device (5) comprises a second intermediate relay (51), and the second intermediate relay (51) is electrically connected to a PLC controller (52).

8. The cable take-up stand with a safety detection device as claimed in claim 7, characterized in that: The sound and light alarm (43) comprises a buzzer and a flashing light.

9. A cable take-up rack safety detection method, characterized in that: The following steps are involved: S1. Arranging a first photoelectric switch (2) on a base (11) of a cable take-up rack; S2, setting a second photoelectric switch (3) on the column (12) of the cable take-up rack; S3, when the first photoelectric switch (2) is triggered, the sound and light alarm (43) is activated; S4. When the second photoelectric switch (3) is triggered, the PLC controller (52) controls the cable take-up rack to stop running.

10. The cable take-up rack safety detection method according to claim 9, characterized in that: The following steps are also included: S5. The alarm signal of the sound and light alarm (43) can be eliminated by using the reset button (41).

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