A wire unwinding mechanism for high-voltage coil production

Abstract

The utility model discloses a pay-off mechanism for high tension coil production belongs to high tension coil production equipment technical field, this mechanism contains stand, material blocking cylinder and wire assembly, and the stand is equipped on the ground, and wire assembly is connected with the connecting plate of stand, material blocking cylinder contains two pieces of openable material blocking frame, and the upper portion has conical wire blocking cover, and the lower portion has wire reel seat, and the wire reel seat is equipped with castor, and the upper portion of wire blocking cover has hollow wire outlet pipe, the upper end of wire outlet pipe has connecting plate, and the connecting plate has wire passing base, and the wire passing base has wire passing hole, and the wire passing base has quarter disc type broken wire detection block, and the corner passes through rotatable.

Description

Technical Field

[0001] This utility model belongs to the field of high-voltage coil production equipment, and specifically relates to a wire feeding mechanism for high-voltage coil production. Background Technology

[0002] In the production of high-voltage coils, the wire-laying mechanism is an indispensable key piece of equipment. However, traditional wire-laying mechanisms for high-voltage coil production have revealed numerous problems in practical use. For example, the lack of effective constraint and organization of the coil during wire laying makes the conductor prone to tangling and twisting, increasing the difficulty and time cost for operators, and potentially causing conductor wear and affecting product quality. Moreover, once a wire breakage occurs, the lack of effective detection methods makes it difficult to detect quickly, prolonging production interruption time and reducing production efficiency. In addition, traditional wire-laying mechanisms are inconvenient in terms of tension adjustment, making it difficult to accurately adjust the wire tension according to different production needs and conductor characteristics. If the tension is too high, the conductor may be stretched thin or even broken; if the tension is too low, the conductor is prone to slackness and vibration. These situations will seriously affect the winding quality of the high-voltage coil, leading to unstable product performance and an increased defect rate. Therefore, developing a wire-laying mechanism for high-voltage coil production that can effectively solve the above problems is of great practical significance. It will help improve the production efficiency and product quality of high-voltage coils and reduce production costs. Summary of the Invention

[0003] (a) Technical problems to be solved This invention aims to solve the problem of difficulty in timely detection of wire breakage in existing wire feeding mechanisms used in high-voltage coil production.

[0004] (II) Technical Solution To solve the above problems, this utility model provides the following technical solution: A wire feeding mechanism for high-voltage coil production includes a baffle cylinder, a wire baffle cover at the upper part of the baffle cylinder, a wire reel seat at the lower part, and a hollow wire outlet tube at the upper part of the wire baffle cover. The wire baffle cover has a conical structure, and the wire outlet tube is fixedly installed at the upper end of the wire baffle cover and communicates with the wire baffle cover. A connecting plate is provided at the upper end of the outlet tube, and a wire guide base is provided on the connecting plate. The wire guide base has a wire guide hole, which passes through the wire guide base and the connecting plate and is connected to the inner hole of the outlet tube. A wire breakage detection block is provided on the wire guide base. The wire breakage detection block has a quarter-circular structure. The corner of the wire breakage detection block is connected to the wire guide base by a rotatable pin. The distance between one side of the wire breakage detection block and the axis of the wire guide hole is controlled at 5-20 mm. The arc-shaped surface of the wire breakage detection block is located near the lower part of the wire guide base. A proximity switch is located on the upper part of the wire guide base, near the side of the wire breakage detection block.

[0005] Furthermore, it also includes a support frame and a wire assembly, with the support frame set on a horizontal ground and the wire assembly connected to the support frame and the connecting plate.

[0006] Furthermore, the conductor assembly includes a side plate, a resistance adjustment cylinder, a pulley one, a wheel seat, a pulley two, a timing belt, a resistance wheel and a rotating wheel. The side plate is rigidly connected to the upright and the connecting plate respectively. The lower part of the wheel seat is connected to the side plate through a rotatable shaft. The bottom of the resistance adjustment cylinder is fixedly connected to the side plate, and its telescopic rod is connected to one side of the wheel seat. The pulley one is connected to the wheel seat through a rotatable shaft. There are two pulleys two, one located on the side of pulley one near the upright and the other located on the lower side of pulley one. Both pulley one and pulley two are connected by a timing belt. The resistance wheel is rotatably mounted on the side plate. The timing belt is connected to pulley one and the two pulleys two, and at the same time, it abuts against the wheel surface of the resistance wheel.

[0007] Furthermore, the conductor assembly also includes a first guide wheel and a second guide wheel. There are two first guide wheels, which are vertically mounted on the side plate via mounting bases. Both first guide wheels and second guide wheels are guide wheels with rotatable central shafts. There is one second guide wheel, which is located between first guide wheels and resistance wheels, and second guide wheels are horizontally mounted on the side plate.

[0008] Furthermore, the baffle cylinder includes two baffle frames, which are semi-circular tubes. One adjacent side of the two baffle frames is connected by a hinge, and the other adjacent side is connected by a snap fastener. The bottom end of one of the two baffle frames is rigidly connected to the lower part of the upright.

[0009] Furthermore, casters are provided at the bottom of the wire reel base and are located at the bottom of the baffle cylinder.

[0010] (III) Beneficial Effects The beneficial effects of this utility model are: 1. The material stop cylinder adopts two openable and closable material stop frames, which can quickly load and unload the wire coil through buckles, reducing the difficulty of operation; the casters under the wire coil base facilitate the movement of the mechanism and adapt to the layout requirements of different production scenarios.

[0011] 2. The conical wire guard and hollow outlet tube provide good guidance and alignment for the conductor, preventing deviation and tangling; the conductor assembly adjusts the resistance of the synchronous belt and resistance wheel through the resistance adjustment cylinder to achieve precise adjustment of conductor tension, prevent conductor stretching and deformation or slack accumulation, and ensure transmission stability. 3. The wire breakage detection block works in conjunction with the proximity switch. When a wire breaks, the wire breakage detection block is driven by gravity to rotate away from the detection end, triggering the proximity switch to send a signal, stopping the machine in time to avoid energy waste and production interruption, and improving production efficiency. Attached image description: Figure 1 This is a perspective view of the present invention; Figure 2 yes Figure 1 Enlarged view at point B in the middle; Figure 3 This is a front view of the present invention; Figure 4 yes Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the wire assembly of this utility model.

[0012] The markings in the diagram are: 1-Guide cylinder, 101-Guide frame, 2-Wire guide cover, 3-Wire reel seat, 4-Outlet tube, 5-Connecting plate, 6-Wire guide base, 7-Wire guide hole, 8-Wire breakage detection block, 9-Rotating pin, 10-Upright frame, 11-Wire assembly, 1101-Side upright plate, 1102-Resistance adjustment cylinder, 1103-Pulley one, 1104-Pulley seat, 1105-Pulley two, 1106-Synchronous belt, 1107-Resistance wheel, 1108-Rotating wheel, 1109-Passing wheel one, 1110-Passing wheel two, 12-Proximity switch. Detailed Implementation

[0013] 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.

[0014] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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 this utility model and simplifying the description, and do not indicate or imply that the device or element 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 this utility model.

[0015] Please see Figures 1-5 The diagram shows a wire feeding mechanism for high-voltage coil production, comprising a baffle cylinder 1, a support frame 10, and a wire assembly 11. The support frame 10 is set on a horizontal ground to provide stable support for the entire mechanism. The wire assembly 11 is connected to the support frame 10 and the connecting plate 5 to adjust the wire tension and guide the wire direction. The guide tube 1 includes two guide frames 101, which are semi-circular tubes. One adjacent side of the two guide frames 101 is connected by a hinge, and the other adjacent side is connected by a snap fastener. The wire coil can be easily loaded and unloaded by opening the snap fastener. The bottom end of one of the two guide frames 101 is rigidly connected to the lower part of the upright frame 10 to ensure the stability of the guide tube 1. The upper part of the guide tube 1 is provided with a wire guide cover 2, and the lower part is provided with a wire reel seat 3. The wire reel seat 3 is not connected to the guide tube 1. The lower part of the wire reel seat 3 is provided with casters for easy movement and adaptation to different production scenarios.

[0016] The wire guide 2 has a conical structure, which guides and regulates the wire released from the wire coil, preventing it from shifting or tangling as it rises. The upper part of the wire guide 2 has a hollow outlet tube 4, which is fixedly installed at the upper end of the wire guide 2 and is connected to it. After being guided by the wire guide 2, the wire enters the outlet tube 4 and moves upward along the hollow channel, further ensuring the straightness and stability of the released wire. A connecting plate 5 is provided at the upper end of the outlet tube 4. The connecting plate 5 is fixed to the outlet tube 4 by welding or bolts, providing a stable foundation for the installation of subsequent components. A wire guide base 6 is provided on the connecting plate 5. The wire guide base 6 is fixed to the connecting plate 5 by bolts, facilitating disassembly and maintenance. The wire guide base 6 has a wire guide hole 7, which passes through the wire guide base 6 and the connecting plate 5 and communicates with the inner hole of the outlet tube 4. The wires passing out from the upper end of the outlet tube 4 pass through the wire guide holes 7 on the connecting plate 5 and the wire guide base 6 in sequence, achieving orderly output. A wire breakage detection block 8 is provided on the wire guide base 6. The wire breakage detection block 8 has a quarter-disc shape, which ensures detection sensitivity without occupying too much space. The corner of the wire breakage detection block 8 is connected to the wire guide base 6 by a rotatable pin 9, allowing it to rotate freely around the rotatable pin 9 as the axis; and the distance between one side of the wire breakage detection block 8 and the axis of the wire guide hole 7 is controlled at 5-20 mm to ensure that the wire can contact the side of the wire breakage detection block 8 after passing through the wire guide hole 7, thus providing the triggering condition for wire breakage detection. The arc-shaped surface of the wire breakage detection block 8 is positioned near the lower part of the wire guide base 6 to avoid interference with other components and ensure smooth rotation. A proximity switch 12 is provided on the upper part of the wire guide base 6 near the side of the wire breakage detection block 8. The proximity switch 12 is fixed on the wire guide base 6 by a bracket, and the detection end faces one side of the wire breakage detection block 8. It is used to detect the position change of the wire breakage detection block 8 and determine whether the wire is broken. The conductor assembly 11 includes a side plate 1101, a resistance adjustment cylinder 1102, a first pulley 1103, a wheel seat 1104, a second pulley 1105, a timing belt 1106, a resistance wheel 1107, a rotating wheel 1108, a first guide pulley 1109, and a second guide pulley 1110. The side plate 1101 is rigidly connected to the upright frame 10 and the connecting plate 5, providing support for other components of the conductor assembly 11. The lower part of the wheel seat 1104 is connected to the side plate 1101 via a rotatable shaft. The bottom of the resistance adjustment cylinder 1102 is fixedly connected to the side plate 1101, and its telescopic rod is connected to one side of the wheel seat 1104. The angle of the wheel seat 1104 can be adjusted by extending and retracting the telescopic rod of the resistance adjustment cylinder 1102. Pulley 1103 is connected to wheel seat 1104 via a rotatable shaft. There are two pulleys 1105, one located on the side of pulley 1103 near the upright 10, and the other located below pulley 1103. Both pulley 1103 and pulley 2105 are connected by a synchronous belt 1106. Resistance wheel 1107 is rotatably mounted on the side upright 1101. The synchronous belt 1106 is connected to pulley 1103 and the two pulleys 2105, and also abuts against the wheel surface of resistance wheel 1107. By adjusting the angle of wheel seat 1104 through resistance adjustment cylinder 1102, the abutting force between synchronous belt 1106 and resistance wheel 1107 can be changed, thereby adjusting the tension of the conductor. Two guide rollers 1109 are provided, which are vertically mounted on the side plate 1101 via mounting bases. Both guide rollers 1109 and guide rollers 2110 are guide rollers with rotatable central shafts. There is one guide roller 2110, which is located between guide roller 1109 and resistance roller 1107. Guide roller 2110 is horizontally mounted on the side plate 1101. Guide rollers 1109 and guide roller 2110 work together to guide the direction of the wire and ensure smooth wire transmission.

[0017] Working principle: First, the operator manually opens the latch between the two retaining frames 101 on the retaining cylinder 1. Since the two retaining frames 101 are connected by a hinge, after opening the latch, one of the retaining frames 101 can be rotated outward around the hinge axis, so that the retaining cylinder 1 forms an open opening. At this time, the wire coil to be unwound is vertically placed on the bearing surface of the wire reel base 3, with the bottom of the wire coil in contact with the surface of the wire reel base 3 to ensure stable placement. Then, the opened retaining frame 101 is rotated in the opposite direction to close it with the other retaining frame 101, and the latch is fastened to complete the fixing of the wire coil, preventing the wire coil from shifting during the unwound process. If the position of the mechanism needs to be adjusted, the upright frame 10 or the retaining cylinder 1 is pushed, and the casters at the bottom of the wire reel base 3 will roll along the horizontal ground, driving the entire mechanism to move until it reaches the designated position required for production. The braking device on the casters can be locked after moving into position to prevent the mechanism from sliding on its own. After the wire roll is installed, pull out the starting end of the wire from the outer layer of the wire roll. First, guide the wire into the conical cavity of the wire retainer 2. Due to the conical structure of the wire retainer 2, which is wider at the bottom and narrower at the top, the wire will move upward along the inner wall of the wire retainer 2 under its own tension, preventing the wire from shifting to the sides. Then, the wire enters the hollow channel inside the outlet tube 4 connected to the upper end of the wire retainer 2. The diameter of the outlet tube 4 is usually 1-3 mm larger than the diameter of the wire, which is matched with the diameter of the wire to ensure that the wire moves smoothly in the channel without violent shaking. After the wire passes out from the upper end of the outlet tube 4, it passes vertically downward through the through hole on the connecting plate 5 that is aligned with the inner hole of the outlet tube 4, and then through the through hole 7 on the wire guide base 6. The axis of the through hole 7 is coaxial with the axis of the outlet tube 4 to ensure that the wire transmission direction is consistent. Then the wire turns and enters the wire assembly 11. Based on the specific requirements for conductor tension in high-voltage coil production, a control signal is sent to the resistance adjusting cylinder 1102 via an external control system. If it is necessary to increase the conductor tension, the telescopic rod of the resistance adjusting cylinder 1102 extends outward, pushing the wheel seat 1104 to rotate around its lower axis towards the resistance wheel 1107. The wheel seat 1104 drives the pulley 1103 on it to move synchronously, increasing the tension of the synchronous belt 1106 between the pulley 1103 and the two pulleys 1105. This increases the pressure of the synchronous belt 1106 against the surface of the resistance wheel 1107, and increases the frictional force experienced by the resistance wheel 1107 during rotation. Consequently, the tension transmitted to the conductor through the synchronous belt 1106 increases. If it is necessary to reduce the conductor tension, the telescopic rod of the resistance adjusting cylinder 1102 retracts inward, pulling the wheel seat 1104 to rotate away from the resistance wheel 1107. The position of pulley 1103 moves synchronously, the tension of the synchronous belt 1106 decreases, the pressure on the resistance wheel 1107 decreases, the friction decreases, and the tension on the conductor also decreases. During the tension adjustment process, the synchronous belt 1106 always maintains engagement with pulley 1103 and the two pulleys 1105 to avoid belt slippage and ensure the stability and accuracy of tension adjustment. After the wire threading and tension adjustment are completed, the drive device of the wire release mechanism is started. This is typically a rotating drive component connected to the wire reel. The wire reel begins to rotate around its own axis, and the wire continues to be released from it. The wire passes sequentially through the wire stop cover 2, the wire outlet tube 4, and the wire passage hole 7. When passing through the wire passage hole 7, because the distance between one side of the wire breakage detection block 8 and the axis of the wire passage hole 7 is 5-20 mm, the wire will make close contact with that side of the wire breakage detection block 8, applying a horizontal lateral force to it. This force overcomes the weight of the wire breakage detection block 8, causing it to rotate clockwise around the rotatable pin 9. With the front view of the mechanism as the reference, the rotation angle is usually 10-15 degrees. At this time, the distance between the lateral side of the wire breakage detection block 8 facing the proximity switch 12 and the detection end of the proximity switch 12 is reduced to the detection threshold range of the proximity switch 12. The proximity switch 12 detects the presence of the wire breakage detection block 8 and outputs a normal operation signal. After receiving the signal, the external control system determines that the wire feeding is normal and the drive device continues to run. The wire is stably transmitted to the subsequent coil winding process through the first roller 1109, the second roller 1110 and the synchronous belt 1106 in the wire assembly 11. The wire tension remains stable throughout the wire feeding process, without any deviation or entanglement. During normal wire feeding, if the wire breaks due to quality issues, excessive tension, or accidental external pulling, the lateral force exerted by the wire on the wire breakage detection block 8 disappears instantly. Under its own weight (typically metal, weighing 50-100g to ensure rotation), the wire breakage detection block 8 rotates counter-clockwise around the rotatable pin 9, gradually returning to its initial position. As the wire breakage detection block 8 rotates, the distance between its lateral side facing the proximity switch 12 and the detection end of the proximity switch 12 gradually increases. When this distance exceeds the detection threshold of the proximity switch 12, the proximity switch 12 cannot detect the wire breakage detection block 8, and the output signal changes from a normal operating signal to a wire breakage signal. Upon receiving the wire breakage signal, the external control system immediately issues a stop command, cutting off the power to the wire feeding mechanism drive. The drive stops running, and simultaneously activates alarm devices such as flashing indicator lights and a buzzer, reminding operators to address the wire breakage issue promptly. This effectively avoids energy waste caused by the drive idling and prevents production interruptions due to a lack of wire supply in subsequent processes, ensuring the continuity and safety of the production process.

[0018] The embodiments are detailed, and the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the present invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0019] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A wire-feeding mechanism for high-voltage coil production, characterized in that: The device includes a baffle cylinder (1), with a wire baffle cover (2) at the top and a wire reel seat (3) at the bottom. The wire baffle cover (2) has a hollow wire outlet tube (4) at the top. The wire baffle cover (2) has a conical structure. The wire outlet tube (4) is fixedly installed at the top of the wire baffle cover (2) and is in communication with the wire baffle cover (2). The upper end of the outlet tube (4) is provided with a connecting plate (5), and a wire guide base (6) is provided on the connecting plate (5). The wire guide base (6) is provided with a wire guide hole (7). The wire guide hole (7) passes through the wire guide base (6) and the connecting plate (5) and is connected to the inner hole of the outlet tube (4). A wire breakage detection block (8) is provided on the wire guide base (6). The wire breakage detection block (8) has a quarter-disc shape. The corner of the wire breakage detection block (8) is connected to the wire guide base (6) by a rotatable pin. The distance between one side of the wire breakage detection block (8) and the axis of the wire guide hole (7) is controlled at 5-20 mm. The arc surface of the wire breakage detection block (8) is located near the lower part of the wire guide base (6). A proximity switch (9) is provided on the upper part of the wire-passing base (6) near the side of the wire breakage detection block (8).

2. The wire-feeding mechanism for high-voltage coil production according to claim 1, characterized in that: It also includes a support frame (10) and a wire assembly (11), the support frame (10) being set on a horizontal ground, and the wire assembly (11) being connected to the support frame (10) and the connecting plate (5).

3. The wire-feeding mechanism for high-voltage coil production according to claim 2, characterized in that: The conductor assembly (11) includes a side plate (1101), a resistance adjustment cylinder (1102), a pulley one (1103), a wheel seat (1104), a pulley two (1105), a synchronous belt (1106), a resistance wheel (1107), and a rotating wheel (1108). The side plate (1101) is rigidly connected to the upright (10) and the connecting plate (5) respectively. The lower part of the wheel seat (1104) is connected to the side plate (1101) through a rotatable shaft. The bottom of the resistance adjustment cylinder (1102) is... The part is fixedly connected to the side plate (1101), and its telescopic rod is connected to one side of the wheel seat (1104). The first pulley (1103) is connected to the wheel seat (1104) through a rotatable shaft. There are two second pulleys (1105), one of which is located on the side of the first pulley (1103) near the upright (10), and the other is located on the lower side of the first pulley (1103). The first pulley (1103) and the second pulley (1105) are both connected by the synchronous belt (1106). The resistance wheel (1107) is rotatably mounted on the side plate (1101). The synchronous belt (1106) is connected to the first pulley (1103) and the two second pulleys (1105) and also abuts against the wheel surface of the resistance wheel (1107).

4. The wire-feeding mechanism for high-voltage coil production according to claim 3, characterized in that: The conductor assembly (11) also includes a first guide wheel (1109) and a second guide wheel (1110). There are two first guide wheels (1109), which are vertically mounted on the side plate (1101) via mounting bases. Both the first guide wheel (1109) and the second guide wheel (1110) are guide wheels with rotatable central shafts. One second guide wheel (1110) is located between the first guide wheel (1109) and the resistance wheel (1107), and the second guide wheel (1110) is horizontally mounted on the side plate (1101).

5. The wire feeding mechanism for high-voltage coil production according to claim 2, characterized in that: The baffle cylinder (1) includes two baffle frames (101). The two baffle frames (101) are semi-circular tubes. One of the adjacent sides of the two baffle frames (101) is connected by a hinge, and the other adjacent side is connected by a buckle. The bottom end of one of the two baffle frames (101) is rigidly connected to the lower part of the stand (10).

6. The wire-feeding mechanism for high-voltage coil production according to claim 1, characterized in that: The lower part of the wire reel seat (3) is provided with casters and is located at the lower part of the baffle cylinder (1).

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