Conductor center line broken wire protection device for stranding machine

Abstract

The utility model belongs to the field of broken wire protection, and provides a conductor center line broken wire protection device for a stranding machine, which comprises a mounting rack, a wire drawing disc and equipment are respectively arranged on two sides of the mounting rack; the traction mechanism is movably arranged on the mounting frame, and the traction mechanism is used for pulling out the conductor in the wire drawing disc and guiding the conductor into the equipment; and one end of the swing arm is movably connected to the mounting rack, and the other end of the swing arm is movably lapped on the conductor. Compared with the prior art, the utility model has the advantages that the action of the travel limit switch is triggered by using the falling inertia and mass of the swing arm when the wire is broken, and the action of the stranding machine can be immediately responded and stopped in time, so that the waste of large-length conductor materials caused by the fact that the broken wire is not found in time is reduced; through an automatic detection and response mechanism, the requirement for manual continuous monitoring is eliminated, the safety risk possibly caused by human negligence is reduced, and safe operation of production equipment is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of wire breaking protection, and particularly relates to a conductor center line wire breaking protection device for a stranding machine. BACKGROUND

[0002] The stranding machine is a kind of mechanical equipment which can be widely applied to the stranding of various soft / hard conductor wires to form wire and cable products with certain strength and structure.

[0003] The existing 90-frame stranding machine has high automation degree and production efficiency, but when it strands 91 wires, one wire needs to be pulled out from a separate conductor pay-off reel, and due to the lack of effective wire breaking protection measures, once the center line breaks, and combined with the relatively fast stranding speed, it is difficult for the on-site workers to discover and shut down the equipment in time, which will lead to a large amount of conductor material being scrapped, and finally cause the delay of production. UTILITY MODEL CONTENTS

[0004] In view of the above problems in the prior art, the technical problem to be solved by the utility model is to provide a conductor center line wire breaking protection device for a stranding machine, which can stop the production of the stranding equipment in time when the conductor breaks or is missing, has a simple overall structure, and improves the safety and reliability of the equipment.

[0005] The utility model solves the technical problems by adopting the technical scheme of providing a conductor center line wire breaking protection device for a stranding machine, which comprises: a mounting frame, both sides of which are respectively provided with a wire drawing reel and equipment;

[0006] A traction mechanism is movably arranged on the mounting frame, and is used to pull out the conductor in the wire drawing reel and guide it into the equipment;

[0007] An oscillating arm and a travel limit switch, one end of the oscillating arm is movably connected to the mounting frame, and the other end is movably lapped on the conductor; the travel limit switch is located below the oscillating arm and is connected to the equipment;

[0008] When the wire breaks, the oscillating arm can rotate relative to the mounting frame and contact the travel limit switch due to the loss of the traction force of the traction mechanism, so as to transmit the wire breaking signal to the equipment and control it to stop working.

[0009] In the above-mentioned conductor center line wire breaking protection device for a stranding machine, a traction wheel is arranged on the traction mechanism, the side wall of the mounting frame is formed with an extension bracket, and the traction wheel is rotatably installed on the extension bracket and is used to guide the conductor to the inlet of the equipment.

[0010] The conductor center line breakage protection device for the stranding machine further comprises a device power supply, and a connecting line is arranged on the device power supply and used for connecting the travel limit switch and the device power supply in series.

[0011] The conductor center line breakage protection device for the stranding machine further comprises a device power supply, and a connecting line is arranged on the device power supply and used for connecting the travel limit switch and the device power supply in series.

[0012] The conductor center line breakage protection device for the stranding machine further comprises a device power supply, and a connecting line is arranged on the device power supply and used for connecting the travel limit switch and the device power supply in series.

[0013] The conductor center line breakage protection device for the stranding machine further comprises a device power supply, and a connecting line is arranged on the device power supply and used for connecting the travel limit switch and the device power supply in series.

[0014] The conductor center line breakage protection device for the stranding machine further comprises a device power supply, and a connecting line is arranged on the device power supply and used for connecting the travel limit switch and the device power supply in series.

[0015] The conductor center line breakage protection device for the stranding machine further comprises a device power supply, and a connecting line is arranged on the device power supply and used for connecting the travel limit switch and the device power supply in series.

[0016] The conductor center line breakage protection device for the stranding machine further comprises a device power supply, and a connecting line is arranged on the device power supply and used for connecting the travel limit switch and the device power supply in series.

[0017] The conductor center line breakage protection device for the stranding machine further comprises a device power supply, and a connecting line is arranged on the device power supply and used for connecting the travel limit switch and the device power supply in series.

[0018] Compared with the prior art, the conductor center line breakage protection device for the stranding machine has the following beneficial effects:

[0019] (1) The utility model relates to a conductor center line wire breakage protection device for a stranding machine, which utilizes the inertia and mass of the swing arm when the wire breaks to actuate the travel limit switch, can immediately respond and timely stop the operation of the stranding machine, thereby reducing the large length conductor material waste caused by the failure to timely find the wire breakage, and the overall structure is simple, the automatic detection and response mechanism eliminates the need for continuous manual monitoring, reduces the safety risks that can be caused by human negligence, and ensures the safe operation of the production equipment.

[0020] (2) The design of the limit block effectively prevents the travel limit switch from being damaged by possible impact, prolongs the service life of the equipment, and reduces the maintenance cost.

[0021] (3) Through the design of the first limit wheel and the second limit wheel, the axial movement of the conductor in the direction of the traction wheel is effectively guided, and the stability of the winding machine during operation is avoided from being affected by the deviation or shaking of the conductor. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is the installation structure schematic diagram of the application;

[0023] Figure 2 is the structure schematic diagram of the normally closed contact (NC) and the normally open contact (NO) in the travel limit switch.

[0024] In the figure, 1, mounting frame; 10, extension support; 11, bending block; 110, extension shaft; 12, limit block;

[0025] 2, wire drawing disc; 20, conductor;

[0026] 3, equipment; 30, equipment power supply; 300, connecting line;

[0027] 4, traction mechanism; 40, traction wheel; 41, first limit wheel; 42, second limit wheel;

[0028] 5, swing arm;

[0029] 6, travel limit switch; 60, contact plate; 600, adjusting hole; 61, shell; 62, anti-drop block; 63, fastener. DETAILED DESCRIPTION

[0030] The following is a specific embodiment of the application and further describes the technical solutions of the application in conjunction with the drawings, but the application is not limited to these embodiments.

[0031] It should be noted that all directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directionality indications will also change accordingly.

[0032] As shown in Figures 1 to 2 The utility model discloses a conductor 20 center line wire breakage protection device for stranding machine, including: mounting bracket 1, its both sides place wire drawing disc 2 and equipment 3 respectively, traction mechanism 4, the activity setting is in mounting bracket 1, and traction mechanism 4 is used for drawing out conductor 20 in wire drawing disc 2 and guides to equipment 3 in, swing arm 5 and stroke limit switch 6, swing arm 5 one end swing joint is in mounting bracket 1, and the other end swing lap is in conductor 20, and stroke limit switch 6 is located swing arm 5 below, and is connected to equipment 3, when wire breakage, swing arm 5 can because conductor 20 loses the traction of traction mechanism 4, and rotates and contacts in stroke limit switch 6 to equipment 3 with the wire breakage signal transmission to control its stop working to mounting bracket 1.

[0033] In normal working condition, traction mechanism 4 draws out conductor 20 from wire drawing disc 2, and guides it to equipment 3 and processes, in this process, conductor 20 keeps certain tension, this also makes swing arm 5 can maintain in a relatively stable position, and does not contact stroke limit switch 6 (can refer to the state shown in Figure 1 If conductor 20 breaks at somewhere (that is wire breakage), at this moment, because center line conductor 20 loses the traction, so swing arm 5 is no longer supported by conductor 20, and then rotates (that is falls to stroke limit switch 6) relative to mounting bracket 1 under the action of inertia and weight, when swing arm 5 rotates to a certain angle, swing arm 5 will contact the stroke limit switch 6 below, and then triggers and generates an electric signal, along with the electric signal transmission to the control system of equipment 3, after receiving the wire breakage signal, can immediately execute the stop of all moving parts of stranding machine to prevent the damage of equipment 3 or material, therefore, the device can make a response in the moment of conductor 20 wire breakage, quickly informs the control system to take measures, greatly reduces the additional failure or loss caused by delay, the overall structure is relatively simple, through the automatic detection and response mechanism, eliminates the need for continuous monitoring of manual, reduces the security risk that can be caused by human negligence, guarantees the safe operation of production equipment 3.

[0034] Traction mechanism 4 is provided with traction wheel 40, and the side wall of mounting bracket 1 forms extension support 10, traction wheel 40 is rotatably installed on extension support 10, for guiding conductor 20 to the inlet of equipment 3.

[0035] As shown in Figure 1As shown, the traction wheel 40 in the embodiment is close to one side of the drawing disc 2, and is installed on the extension support 10 to ensure that it can rotate freely within a certain range, so that the conductor 20 drawn out of the drawing disc 2 is first guided by the traction wheel 40. The presence of the traction wheel 40 makes the path of the conductor 20 more stable and predictable, reducing problems such as winding or jamming caused by path deviation. In addition, the material and surface treatment (such as rubber coating) of the traction wheel 40 can reduce the wear on the surface of the conductor 20, protecting the quality of the product. It should be noted that in the embodiment, the top wall of the traction wheel 40 is at the same height as the entrance of the equipment 3 for the conductor 20 to enter, further ensuring the smooth movement of the conductor 20 in the predetermined direction.

[0036] Preferably, the scheme also includes an equipment power supply 30, such as Figure 1 As shown, the equipment power supply 30 is provided with a connection line 300 for connecting the travel limit switch 6 and the equipment power supply 30 in series. This also allows the travel limit switch 6 to be contacted by the swing arm 5 in the event of a broken wire, so that the equipment power supply 30 can be immediately turned off, avoiding additional risks caused by delayed processing or misoperation.

[0037] Further preferably, as shown Figure 1 The end of the travel limit switch 6 is movably connected with a contact plate 60, and the swing arm 5 is movably pressed against the contact plate 60. By introducing the contact plate 60 as an intermediate medium, the force of the swing arm 5 on the travel limit switch 6 can be more concentrated and effective, improving the sensitivity of triggering and ensuring that the broken wire event is captured in the shortest time. It should be noted that, as shown Figure 2 The travel limit switch 6 in the embodiment has 2-pole contacts, configured as 1 normally closed contact (NC) + 1 normally open contact (NO). In the untriggered state, the normally closed contact is in the closed state, while the normally open contact is in the open state. When the swing arm 5 presses the contact plate 60, the quick-action contact mechanism (not shown in the figure) inside the travel limit switch 6 will respond quickly, causing the normally closed contact to open and the normally open contact to close, thereby changing the on-off state of the circuit. Since the normally closed contact controls the contact with the above-mentioned connection line 300, when the normally closed contact is opened, the travel limit switch 6 can control the disconnection of the connection line 300 and the equipment power supply 30, thereby preventing the mechanical parts from continuing to move and playing a protective role. It should be noted that the structure and working principle of the travel limit switch 6 in the embodiment are the same as those commonly used in machinery, and will not be described in detail here.

[0038] The travel limit switch 6 is also provided with a shell 61, the shell 61 is provided with an anti-disengagement block 62, and the contact plate 60 is provided with an adjusting hole 600 along its length direction, the adjusting hole 600 is movably clamped to the anti-disengagement block 62 to adjust the relative position of the contact plate 60 on the travel limit switch 6.

[0039] like Figure 1 As shown, in this embodiment, the operating head of the travel limit switch 6 is a spring-return roller rocker, and it has an adjustable-length contact plate 60. Through the cooperation of the adjustment hole 600 and the anti-detachment block 62, the distance of the contact plate 60 extending relative to the travel limit switch 6 can be adjusted to ensure that the swing arm 5 can accurately contact and squeeze the contact plate 60 to trigger the wire breakage signal when it rotates and falls. At the same time, the contact plate 60 after the position is adjusted can be limited and fixed to ensure that the contact plate 60 rotates relative to the travel limit switch 6 with the limit block 12 as the rotation center. It should be noted that the limit block 12 in this embodiment can be replaced by screws, bolts, or other connecting parts.

[0040] Preferably, such as Figure 1 As shown, in this embodiment, the height difference between the top of the traction wheel 40 and the bottom wall of the horizontally positioned swing arm 5 is equal to the outer diameter of the conductor 20. This height difference design ensures that the conductor 20 is always on the correct path when passing through the traction wheel 40 (i.e., the conductor 20 is delivered to the inlet of the device 3 in a horizontal position), avoiding tension changes caused by excessive bending or friction, thereby improving the stability of the conductor 20 transmission.

[0041] More preferably, in this embodiment, a fastener 63 is also connected to the outer casing 61, such as... Figure 1 As shown, the mounting bracket 1 in this embodiment is provided with a connection hole (not shown in the figure). A fastener 63 passes through the housing 61 and connects to the connection hole, thereby firmly fixing the travel limit switch 6 to the mounting bracket 1. This prevents loosening or displacement caused by machine vibration or external impact, improving the overall stability of the system. Furthermore, the stable installation ensures that the travel limit switch 6 can be accurately triggered when the conductor 20 breaks, stopping the equipment 3 in a timely manner, maximizing the safety of the operator and the integrity of the equipment 3. It should be noted that the fastener 63 in this embodiment can be replaced by screws, bolts, or other fastening components. The entire installation process is simple and quick, reducing installation time and cost, and facilitating subsequent maintenance and disassembly / replacement.

[0042] The top of the mounting bracket 1 has a bending block 11, and the end of the bending block 11 has an extension shaft 110. The swing arm 5 is rotatably connected to the extension shaft 110.

[0043] More preferably, such as Figure 1 As shown, in this embodiment, the extension shaft 110 ensures that the swing arm 5 moves above the contact plate 60, thus guaranteeing the stability of accurate triggering and reception of the wire breakage signal. On the other hand, it provides an accurate rotation center for the swing arm 5, ensuring the stability and consistency of the swing arm 5's movement and reducing the possibility of false triggering due to mechanical errors.

[0044] The mounting frame 1 is further provided with a limiting block 12, which is used to limit the falling position of the swing arm 5 away from one end of the extension shaft 110, so as to prevent the travel limiting switch 6 from being damaged.

[0045] Further preferably, as shown in the drawings, the limiting block 12 in the embodiment can be connected to the mounting frame 1 in a welded manner. Figure 1 When the swing arm 5 rotates relative to the extension shaft 110 due to wire breakage, the falling position of the swing arm 5 can be effectively limited by the limiting block 12, so as to avoid the contact plate 60 of the travel limiting switch 6 from bearing mechanical stress beyond the designed range, thereby prolonging the service life of the travel limiting switch 6 and reducing the maintenance frequency.

[0046] The traction mechanism 4 is further movably provided with a first limiting wheel 41 and a second limiting wheel 42, which can guide the conductor 20 to the traction wheel 40 when rotating towards each other.

[0047] Further preferably, as shown in the drawings, the first limiting wheel 41 and the second limiting wheel 42 in the embodiment are closer to the wire drawing disc 2 than the traction wheel 40, that is, the conductor 20 in the wire drawing disc 2 can reach between the first limiting wheel 41 and the second limiting wheel 42 in advance after being drawn out, and then be drawn to the traction wheel 40. Figure 1 The design of the first limiting wheel 41 and the second limiting wheel 42 ensures that the conductor 20 can be accurately introduced into the traction wheel 40, thereby reducing problems caused by path deviation, such as conductor 20 deviation, winding or jamming; at the same time, the stable support provided by the two limiting wheels rotating towards each other enables the conductor 20 to maintain the correct posture before entering the traction wheel 40, thereby avoiding unnecessary bending or twisting and improving the operation stability of the entire system.

[0048] The working principle of the conductor 20 center line wire breakage protection device for the wire twisting machine is as follows:

[0049] Before operation, the conductor 20 serving as the center line is drawn out of the wire drawing disc 2, passes through the two limiting wheels, the traction wheel 40 and the swing arm 5, and is fixed through the device 3 inlet, at which time the swing arm 5 can be rotated to be parallelly pressed on the conductor 20. During operation, the center line conductor 20 moves axially with the device 3, continuously contacts the lower edge of the swing arm 5, and the operating head of the travel limiting switch 6 remains in place (the normally closed contact is closed, and the normally open contact is opened), so that the device 3 normally operates; when the wire breaks, the swing arm 5 rotates and falls to the limiting block 12 due to the loss of traction force on the conductor 20 and the inertia and weight, in the process, the contact plate 60 of the travel limiting switch 6 is pressed down (the normally closed contact is opened, the normally open contact is closed, and the circuit is disconnected), so that the device 3 stops; after the device 3 stops, the worker cold-welds the broken center line, and then the device 3 can be started to continue operation.

[0050] It should be noted that in this invention, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0051] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0052] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A conductor centerline breakage protection device for a stranding machine, characterized in that The utility model provides a wire drawing device, which comprises: a mounting frame, both sides of which are respectively provided with a wire drawing disc and an equipment; a traction mechanism movably arranged on the mounting frame, the traction mechanism being used for drawing a conductor in the wire drawing disc and guiding the conductor into the equipment; a swing arm, one end of which is movably connected to the mounting frame, and the other end of which is movably overlapped with the conductor; and a stroke limit switch, which is located below the swing arm and is connected to the equipment; when the wire is broken, the swing arm can rotate relative to the mounting frame and contact the stroke limit switch to transmit a wire breaking signal to the equipment and control the equipment to stop working.

2. A conductor core breakage protection device for a stranding machine according to claim 1, characterized in that The traction mechanism is provided with a traction wheel, the side wall of the mounting frame is formed with an extension support, and the traction wheel is rotatably arranged on the extension support and used for guiding the conductor to the inlet of the equipment.

3. A conductor centerline breakage protection device for a stranding machine according to claim 1, characterized in that The device is further provided with an equipment power supply, the equipment power supply is provided with a connecting line, and the stroke limit switch and the equipment power supply are connected in series.

4. A conductor core breakage protection device for a stranding machine according to claim 2, wherein, The end of the stroke limit switch is movably connected with a contact plate, and the swing arm is movably pressed against the contact plate.

5. A conductor core breakage protection device for a stranding machine according to claim 4, characterized in that The stroke limit switch is further provided with a shell, the shell is provided with an anti-falling block, the contact plate is provided with an adjusting hole along the length direction of the contact plate, and the adjusting hole is movably clamped with the anti-falling block to adjust the relative position of the contact plate on the stroke limit switch.

6. A conductor core breakage protection device for a stranding machine as defined in claim 2, wherein, The height difference between the top end of the traction wheel and the bottom wall of the swing arm in the horizontal posture is equal to the outer diameter of the conductor.

7. A conductor core breakage protection device for a stranding machine as defined in claim 5, wherein, The shell is connected with a fastener, and the fastener is used for fixing the stroke limit switch on the mounting frame.

8. A conductor core breakage protection device for a stranding machine as defined in claim 4, wherein, The top end of the mounting frame is formed with a bending block, the end of the bending block is formed with an extension shaft, and the swing arm is rotatably connected to the extension shaft.

9. A conductor core break protection device for a stranding machine as defined in claim 8, wherein, The mounting frame is further provided with a limiting block, the limiting block is used for limiting the position of the swing arm away from the one end of the extension shaft, and the stroke limit switch is prevented from being damaged.

10. A conductor core breakage protection device for a stranding machine as defined in claim 1, wherein, The traction mechanism is further movably provided with a first limiting wheel and a second limiting wheel, and when the first limiting wheel and the second limiting wheel rotate towards each other, the conductor can be guided onto the traction wheel.

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