Stranded filament alarm device

Abstract

The application relates to the field of steel strand manufacturing technology and relates to a stranded broken wire alarm device which comprises a warning assembly and a connecting assembly. The warning assembly is provided with two connection points, the two connection points are connected to form a power supply and start the warning assembly to emit a continuous sound and light connection signal. The connecting assembly is provided with a contact surface in the form of an arc surface and capable of conducting electricity, the contact surface is used for being covered on the side of the steel strand and is in clearance fit, the contact surface is insulated from the stranding equipment, and the two connection points are connected to the contact surface and the steel strand respectively. The application can relatively timely find the broken wire condition in the stranding process of the steel strand.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of steel strand manufacturing technology, in particular to a stranded broken wire alarm device. BACKGROUND

[0002] Steel strand is a steel product composed of multiple steel wires, which is mainly used in construction and power systems and is mainly composed of a middle steel wire and multiple steel wires twisted around the middle steel wire. The process of twisting multiple steel wires to form a steel strand is called stranding, which requires spiral winding multiple steel wires around the peripheral wall of the middle steel wire.

[0003] During the twisting process of steel wires, the steel wires need to be tightened and bear a certain tension, so there is a possibility of broken wires during stranding. After the steel wires of the steel strand break, due to the tension, it is not allowed to manually observe whether the stranding has broken wires during stranding, as there is a safety hazard for the workers observing at the stranding position. Therefore, in order to timely observe the broken wire condition, the existing technology commonly used in practice is to place a metal empty bottle at the stranding position. If a broken wire occurs, the broken steel wire will knock down the metal empty bottle and make a relatively loud sound to prompt the on-site workers to stop the machine in time and reduce subsequent losses.

[0004] In actual production, due to the relatively loud noise of the on-site production equipment, the sound of the empty bottle falling to the ground is easily covered or ignored, so on-site monitoring equipment such as cameras is also used for monitoring. However, due to long-term work and noise in the production site, workers are easily tired, which makes it relatively easy for the broken wire condition to be covered by the on-site noise. Therefore, how to timely discover the broken wire condition during the stranding process of the steel strand is a problem that needs to be solved at present. SUMMARY

[0005] In order to timely discover the broken wire condition during the stranding process of the steel strand, the present application provides a stranded broken wire alarm device.

[0006] The stranded broken wire alarm device provided by the present application adopts the following technical scheme:

[0007] A stranded broken wire alarm device, comprising a warning component and a connecting component; the warning component is provided with two connection points, the two connection points are connected to form a power supply and turn on the warning component to emit a continuous sound and light alarm signal; the connecting component is provided with a contact surface in the form of an arc surface and capable of conducting electricity, the contact surface is used to cover the steel strand on the peripheral side and is in a clearance fit, and the contact surface is insulated from the stranding equipment, and the two connection points are respectively connected to the contact surface and the steel strand.

[0008] By adopting the technical scheme, in the process of steel strand plying, the steel strand is arranged on the contact surface, if the steel strand is broken, the broken steel strand will be opened under the action of its own tension and contact the contact surface, at this time, the two connection points will be connected, and the warning assembly is triggered, so that the warning assembly sends a continuous audible and light alarm signal, which continuously and timely reminds the on-site staff of the broken wire of the steel strand.

[0009] Optionally, the connecting assembly comprises a connecting support and a connecting arc plate made of conductive material, the connecting support is used to connect the plying device or the ground, the connecting arc plate is arranged to slide relative to the connecting support in the direction towards or away from the steel strand and is insulatedly connected with the connecting support, and the contact surface is formed on the inner wall of the connecting arc plate.

[0010] By adopting the technical scheme, in the process of steel strand plying, the steel strand is arranged on the contact surface, if the steel strand is broken, the broken steel strand will be opened under the action of its own tension and contact the contact surface, at this time, the two connection points will be connected, and the warning assembly is triggered, so that the warning assembly sends a continuous audible and light alarm signal, which continuously and timely reminds the on-site staff of the broken wire of the steel strand.

[0011] Optionally, the connecting support comprises a connecting sliding rail and a connecting support base slidingly connected to the connecting sliding rail, the connecting support base is made of insulating material, and the connecting arc plate is fixed to the connecting support base.

[0012] By adopting the technical scheme, when the connecting arc plate slides towards or away from the steel strand, only the connecting support base needs to slide relative to the connecting sliding rail, and the connecting support base is made of insulating material, so that the connecting arc plate and the connecting sliding rail and the plying device can be kept in an insulated connection state.

[0013] Optionally, the connecting sliding rail is provided with two connecting sliding grooves formed in the side walls of the opposite sides, and the end portion of the connecting support base is inserted and slidingly connected in the connecting sliding grooves.

[0014] By adopting the technical scheme, when the connecting support base slides relative to the connecting sliding rail, the connecting sliding grooves can guide the sliding of the connecting support base.

[0015] Optionally, the connecting sliding rail is provided with a limiting portion limiting the sliding of the connecting support base.

[0016] By adopting the technical scheme, the sliding of the connecting support base is limited by the limiting portion, so that the possibility of the connecting support base sliding relative to the connecting sliding rail due to vibration during on-site equipment production is reduced.

[0017] Optionally, the contact surface is in a conical surface structure corresponding to the end surface of the input steel strand, and the large end is arranged in the direction towards the input steel strand.

[0018] By adopting the above technical solution, the torque when contacting the broken steel wire can be increased, so as to bend the steel wire and allow the broken steel wire to enter the interior of the connecting arc plate relatively smoothly.

[0019] Optionally, the warning component sends a control signal to the jointing equipment and controls the jointing equipment to stop after the two connection points are connected.

[0020] By adopting the above technical solution, the joint-stock equipment can be shut down in a timely manner, further reducing the waste generated due to untimely shutdown.

[0021] Optionally, a connecting cover plate for closing the opening is hinged to the opening of the connecting arc plate, and a counterweight block for the connecting cover plate to cover the connecting arc plate is fixed on the side of the connecting cover plate away from the connecting arc plate.

[0022] By adopting the above technical solution, the connecting cover plate is kept closed to the connecting arc plate under the action of the counterweight, so that the steel wire of the steel strand can contact the contact surface in time after it breaks, reducing the possibility that the broken steel wire will slide directly through the opening of the connecting arc plate without triggering the warning component.

[0023] Optionally, the connecting arc plate is slidably disposed relative to the connecting support along the input direction of the steel strand, and the connecting support is provided with a damping component for providing sliding resistance to the connecting arc plate.

[0024] By adopting the above technical solution, the connecting arc plate can maintain a certain speed difference with the broken steel wire and slide relative to it, thereby increasing the contact time and reducing the possibility that the steel wire may come into contact with the contact surface but fail to trigger the warning component due to dirt on site, such as solidified lubricating oil.

[0025] Optionally, the damping assembly includes a damping rod fixed to the connecting arc plate, a damping tube disposed on the connecting support, and a damping spring. The damping rod passes through and is slidably connected to the damping tube. The damping spring is disposed on the damping tube and is used to maintain the position of the damping rod. The damping tube is filled with damping fluid, and the damping rod is fixed with a damping part slidably disposed in the damping tube. The damping part is provided with a flow channel for the damping fluid to flow, and the resistance of the damping fluid flowing in the flow channel along the steel strand conveying direction is greater than the resistance in the opposite direction.

[0026] By adopting the above technical solution, after the steel wire contacts the connecting arc plate, it will drive the damping rod to slide relative to the damping tube through the connecting arc plate. During this process, the damping spring will be compressed. At the same time, due to the presence of damping fluid, the connecting arc plate can slide with the steel strand while also sliding relative to the steel strand. This allows the broken steel strand wire to make relatively full contact with the contact surface, and reduces the possibility of the damping part directly resetting under the action of the damping spring through the flow channel on the damping part.

[0027] To sum up, the present application comprises at least one of the following beneficial technical effects:

[0028] In use, the connecting arc plate slides towards the steel strand along the connecting slide rail, so that the steel strand is arranged in the connecting arc plate. When the steel strand is broken after plying, the broken steel wire will be spread due to the spiral winding, so that the broken steel wire will directly contact the contact surface. At this time, the control system will control the audible and visual alarm to continuously send audible and visual alarm signals, so as to timely and continuously remind the staff to handle the broken wire situation. At the same time, after the two connection points are connected, a control signal is sent to the plying device to control the plying device to stop, so as to reduce the waste product in time. At the same time, before the plying device stops or starts, the connecting arc plate only needs to slide along the connecting slide rail with the connecting support, so that the connecting arc plate is close to or away from the steel strand, so as to reduce the possibility of interference with the steel strand in the initial stage of plying or after plying is completed. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a structural schematic diagram of embodiment 1 of the present application.

[0030] Figure 2 is a schematic diagram of the warning assembly in embodiment 1 of the present application.

[0031] Figure 3 is a structural schematic diagram of embodiment 2 of the present application.

[0032] Figure 4 is a sectional view of the damping assembly in embodiment 2 of the present application.

[0033] Explanation of reference signs: 1, warning assembly; 11, connection point; 12, control system; 13, audible and visual alarm; 2, connecting assembly; 21, contact surface; 22, connecting support; 221, connecting slide rail; 222, connecting support; 223, connecting slide groove; 224, limiting part; 23, connecting arc plate; 231, connecting cover plate; 232, counterweight; 3, steel strand; 4, damping assembly; 41, damping rod; 42, damping pipe; 43, damping spring; 44, damping part; 441, flow channel. DETAILED DESCRIPTION

[0034] The following will be described in detail in combination with the accompanying Figures 1-4 The present application will be further described in detail.

[0035] The present application discloses a plying broken wire alarm device.

[0036] Embodiment 1

[0037] Reference Figure 1 and Figure 2The stranded broken wire alarm device comprises a warning assembly 1 and a connecting assembly 2. The warning assembly 1 is used to issue an audible and light alarm signal after the stranded broken wire, so as to timely warn the on-site staff. The connecting assembly 2 is used to connect the warning assembly 1 to the stranding device or the ground. In the embodiment of the application, the stranding device is taken as an example for description.

[0038] The warning assembly 1 comprises a control system 12 and an audible and light alarm 13. The control system 12 is electrically connected to the audible and light alarm 13. The control system 12 is provided with two connection points 11. After the two connection points 11 are connected, the control system 12 forms a power supply loop and sends an alarm signal to the audible and light alarm 13, so that the audible and light alarm 13 issues an audible and light alarm signal. At the same time, after the two connection points 11 are connected, the control system 12 sends a control signal to the stranding device to control the stranding device to stop running. The control system 12 can be a PLC control system, and is provided with a reset port for resetting after the broken wire alarm.

[0039] Referring to Figure 1 Specifically, the connecting assembly 2 comprises a connecting bracket 22 and a connecting arc plate 23 made of a conductive material. The connecting bracket 22 is used to connect the stranding device or the ground. In the embodiment, the connecting bracket 22 is used to connect the stranding device. The connecting bracket 22 comprises two mutually parallel connecting sliding rails 221 and a connecting support 222 slidingly connected to the connecting sliding rails 221. The connecting support 222 is made of an insulating material, such as wood, plastic, etc. The connecting arc plate 23 has an opening corresponding to an arc smaller than the relative rotation arc of the steel wire of the steel strand 3 under the action of its own tension after the steel wire is broken.

[0040] The two connecting sliding rails 221 are formed with connecting sliding grooves 223 on the opposite side outer walls. The connecting support 222 is located between the two connecting sliding rails 221, and the end portions of the connecting support 222 are one-to-one inserted and slidingly connected in the connecting sliding grooves 223. At the same time, the connecting arc plate 23 is fixed to the connecting support 222, and the inner wall of the connecting arc plate 23 is formed with a contact surface 21 for contacting the broken steel wire. One of the two connection points 11 is fixed to the connecting arc plate 23, so that the connection point 11 can be electrically connected to the contact surface 21. The other connection point 11 is connected to the steel strand 3 in use. Specifically, the other connection point 11 can be directly arranged on the stranded steel strand 3 or connected to the part of the stranding device directly contacting the steel strand 3, such as the stranding position of the stranding device.

[0041] In use, the connecting arc plate 23 is made to slide relative to the connecting slide rail 221 and wrap around the circumferential side of the steel strand 3, and the steel strand 3 is in clearance fit with the contact surface 21. When a broken wire occurs after the steel strand 3 is stranded, the broken wire will be spread open due to the spiral winding, so that the broken wire directly contacts the contact surface 21. At this time, the control system 12 controls the audible and visual alarm 13 to continuously emit audible and visual alarm signals, so as to timely and continuously remind the staff to handle the broken wire situation. At the same time, after the two connecting points 11 are connected, a control signal is sent to the stranding device to control the stranding device to stop, so as to timely reduce the waste products. At the same time, before the stranding device stops or starts, the connecting arc plate 23 only needs to be made to slide along the connecting slide rail 221 with the connecting support 222, so as to make the connecting arc plate 23 approach or move away from the steel strand 3, so as to reduce the possibility of interference with the steel strand 3 in the initial stage of stranding or after stranding is completed.

[0042] With reference to Figure 1 In addition, since the broken wire directly contacts the connecting arc plate 23 after the wire is broken, the end of the connecting arc plate 23 inputting towards the steel strand 3 is open, that is, the opening of the connecting arc plate 23 corresponding to the end inputting towards the steel strand 3 is in a conical surface structure, preferably the axial profile of the conical surface is in an arc line, and the large end is towards the direction of the steel strand 3 input, so as to increase the bending torque of the broken wire when the broken wire contacts the connecting arc plate 23, so that the broken wire can be relatively easily bent and slid into the connecting arc plate 23, and the possibility of the steel strand 3 being directly stuck with the connecting arc plate 23 after the wire of the steel strand 3 is broken is reduced.

[0043] At the same time, the connecting slide groove 223 is fixedly connected with a block-shaped limiting portion 224, so as to limit the sliding stroke of the connecting support 222 and prevent the connecting support 222 from sliding off the connecting slide rail 221. Of course, in other embodiments, the limiting portion 224 can also be fixed to the outside of the connecting slide groove 223, for example, the outer wall of the connecting slide rail 221 and intersect with the sliding path of the connecting support 222.

[0044] The implementation principle of embodiment 1 is that in use, the connecting arc plate 23 is slid, so that the steel strand 3 is longitudinally arranged in the inner side of the connecting arc plate 23. If a broken wire occurs, since the steel wires are spirally wound or stranded with other steel wires, the broken wire will be relatively spread open, so as to contact the contact surface 21 in the inner side of the connecting arc plate 23, so that the audible and visual alarm 13 emits audible and visual warning signals, timely and continuously reminding the staff to handle, and simultaneously controlling the stranding device to stop, so as to reduce the waste products.

[0045] Embodiment 2

[0046] With reference to Figure 3 and Figure 4The difference between the embodiment and embodiment 1 is that the connecting arc plate 23 is connected to the connecting support 222 in the input direction of the steel strand 3, and the connecting support 222 is provided with a damping assembly 4 for providing sliding resistance to the connecting arc plate 23, so that the broken steel wire can be in contact with the contact surface 21 relatively fully, and the possibility that the contact surface 21 cannot be in contact with the broken steel wire on the steel strand 3 in time due to oil stains and the like on the site is reduced, so that the sound and light alarm 13 cannot issue a prompt in time.

[0047] Specifically, the damping assembly 4 includes a damping rod 41, a damping tube 42 provided on the connecting support 222, and a damping spring 43. The damping rod 41 and the damping tube 42 are perpendicular to the connecting sliding rail 221 and parallel to the connecting arc plate 23. The damping rod 41 is coaxially arranged in and slidably connected to the damping tube 42, and the damping spring 43 is arranged inside the damping tube 42, that is, the damping spring 43 is sleeved on the damping rod 41.

[0048] Referring to Figure 3 and Figure 4 , the damping tube 42 is filled with damping liquid, the damping rod 41 is fixed with a damping part 44 slidably connected to the inside of the damping tube 42, and the two ends of the damping rod 41 are bent towards the connecting arc plate 23 and fixed to the connecting arc plate 23. The damping part 44 is annular, and the damping part 44 is provided with a flow channel 441 for the flow of the damping liquid, and the two ends of the damping spring 43 are connected to the damping part 44 and the inner wall of the damping tube 42 respectively, so as to keep the position of the damping rod 41. A Tesla valve is fixed in the flow channel 441, so that the resistance of the damping liquid in the flow channel 441 flowing in the conveying direction of the steel strand 3 is α1, the resistance of the damping liquid in the flow channel 441 flowing in the opposite direction of the conveying direction of the steel strand 3 is α2, and α1>α2.

[0049] When the broken steel wire contacts the connecting arc plate 23, the damping spring 43 can be compressed and the damping liquid can flow on both sides of the damping part 44 through the flow channel, so that the damping rod 41 slides relative to the damping tube 42, and in the process, the connecting arc plate 23 slides with the steel strand 3 and there is a speed difference, and then it is relatively slow to reset under the action of the damping spring 43, so that the broken steel wire of the steel strand 3 is in contact with the contact surface 21 fully, and at the same time, the occupied space is reduced, and the situation that the steel strand 3 and the connecting arc plate 23 are stuck due to the broken steel wire is reduced.

[0050] Of course, in other embodiments, the damping assembly 4 can be provided only with the damping spring 43, and the two ends of the damping spring 43 are fixed to the connecting arc plate 23 and the connecting support 222 respectively. And in other embodiments, a plurality of elastic tabs can be arranged in the flow channel 441, and the elastic tabs are arranged inclined towards the input direction of the steel strand 3, so that the resistance of the damping liquid flowing in different directions is different.

[0051] Referring to Figure 3 Figure 4Specifically, in order to reduce the possibility that the broken wire of the steel strand 3 directly connects the opening of the connecting arc plate 23 and cannot timely contact the contact surface 21, a connecting cover plate 231 for closing the opening is hinged to the opening of the connecting arc plate 23, and a weight 232 is fixed to the side of the connecting cover plate 231 away from the connecting arc plate 23 to make the connecting cover plate 231 cover the connecting arc plate 23.

[0052] The implementation principle of the embodiment 2 is that when the steel strand 3 is broken, the broken wire contacts the contact surface 21 and simultaneously drives the connecting arc plate 23 to slide, and at the same time, the connecting arc plate 23 and the steel strand 3 have a speed difference due to the damping liquid passing through the flow channel 441, at this time, the steel strand 3 slowly slides relative to the connecting arc plate 23, and cooperates with the tension of the broken wire of the steel strand 3, so that the broken wire of the steel strand 3 can fully contact the contact surface 21, thereby effectively reducing the possibility that the dirt in the production site causes insulation and the sound-light alarm 13 cannot be opened to issue a warning signal. At the same time, due to the existence of the flow channel 441, the resistance of the connecting arc plate 23 to reset is significantly enhanced during the process that the broken wire of the steel strand 3 is located in the connecting arc plate 23, so as to reduce the situation that the connecting arc plate 23 resets when the broken wire of the steel strand 3 does not slide out of the connecting arc plate 23.

[0053] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A stranded filament alarm device, characterized by: The alarm assembly (1) and the connecting assembly (2) are included. The alarm assembly (1) is provided with two connection points (11), and the two connection points (11) are communicated to form a power supply and start the alarm assembly (1) to emit a continuous sound and light alarm signal. The connecting assembly (2) is provided with a contact surface (21) in the shape of an arc surface and can conduct electricity, the contact surface (21) is used to cover the steel strand (3) and is in a clearance fit, and the contact surface (21) is insulated from the stranding device, and the two connection points (11) are connected to the contact surface (21) and the steel strand (3) respectively. The connecting assembly (2) includes a connecting bracket (22) and a connecting arc plate (23) made of conductive material, the connecting bracket (22) is used to connect the stranding device or the ground, the connecting arc plate (23) is slidingly arranged relative to the connecting bracket (22) in the direction towards or away from the steel strand (3) and is insulatedly connected, and the contact surface (21) is formed on the inner wall of the connecting arc plate (23). The connecting bracket (22) includes a connecting sliding rail (221) and a connecting support (222) slidingly connected to the connecting sliding rail (221), the connecting support (222) is made of insulating material, and the connecting arc plate (23) is fixed to the connecting support (222). The connecting arc plate (23) is slidingly arranged relative to the connecting support (222) in the input direction of the steel strand (3), and the connecting support (222) is provided with a damping assembly (4) for providing sliding resistance to the connecting arc plate (23). The damping assembly (4) includes a damping rod (41) fixed to the connecting arc plate (23), a damping tube (42) arranged in the connecting support (222), and a damping spring (43), the damping rod (41) is arranged in and slidingly connected to the damping tube (42), the damping spring (43) is arranged in the damping tube (42) and is used to keep the position of the damping rod (41), the damping tube (42) is filled with damping liquid, and the damping rod (41) is fixed with a damping part (44) slidingly arranged in the damping tube (42), the damping part (44) is provided with a flow channel (441) for the damping liquid to flow, and the damping liquid in the flow channel (441) flows in the direction of the steel strand (3) and the resistance is greater than that in the opposite direction.

2. The twisted yarn alarm device of claim 1, wherein: The connecting sliding rail (221) is provided with two connecting sliding grooves (223) formed on the opposite side walls, and the end of the connecting support (222) is inserted and slidingly connected in the connecting sliding grooves (223).

3. The twisted yarn alarm device of claim 1, wherein: The connecting sliding rail (221) is provided with a limiting part (224) for limiting the sliding of the connecting support (222).

4. The twisted yarn alarm device of claim 1, wherein: The end surface of the contact surface (21) corresponding to the input of the steel strand (3) is in the shape of a conical surface, and the large end is arranged in the direction of the input of the steel strand (3).

5. The twisted filament alarm device according to any one of claims 1-4, wherein: The alarm assembly (1) sends a control signal to the stranding device after the two connection points (11) are communicated and controls the stranding device to stop.

6. The twisted filament alarm device of any one of claims 2-3, wherein: The connecting arc plate (23) is hinged with a connecting cover plate (231) for closing the opening, and the connecting cover plate (231) is fixed with a counterweight (232) on the side away from the connecting arc plate (23), which covers the connecting arc plate (23).

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