A transformer coil winding machine

Abstract

The present invention discloses a transformer coil winding machine, which relates to the technical field of coil winding. It includes a material roller conveyor body, a wire roller and a winding frame. The wire roller is rotatably arranged on the winding frame, and a bobbin is coaxially sleeved on the wire roller. The material roller conveyor body is internally provided with wire material and insulating tape for winding on the bobbin. There are two wire rollers which are symmetrically arranged on the winding frame. A discharging conveyor belt is arranged on the winding frame on the side of the wire roller away from the material roller conveyor body. A feeding conveyor belt is arranged on the winding frame above the wire roller. A bracket is rotatably arranged directly below the wire roller. The upper end of the bracket is adapted to the two ends of the bobbin sleeved on the wire roller. One end of the wire roller is connected to the winding frame through a first cylinder. In the present invention, the feeding conveyor belt cooperates with the bracket for feeding, the discharging conveyor belt cooperates with the bracket for discharging, and during the winding process, through the cooperation of the limiting ring and the hinge strip, the stable linkage between the bobbin and the wire roller is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of coil winding, in particular to a transformer coil winding machine. Background Art

[0002] A transformer is a key device in the power system, and its performance directly affects the operation efficiency and safety of the entire power system. The coil is one of the core components of the transformer, and its quality has an important impact on the performance of the transformer. During the manufacturing process of the transformer, the winding quality of the coil (including the number of turns, the tightness and uniformity of the arrangement) plays a decisive role in the electrical performance, mechanical strength and heat dissipation performance of the transformer.

[0003] The transformer coil winding machine includes a frame and a motor. A plurality of winding units are installed on the frame. The winding unit includes a roller A, a roller B and a belt. The roller A is fixed on a rotating shaft, and the roller A is connected to the roller B through the belt. A roller is fixed on the rotating shaft of the roller B; A cylinder is installed on the frame. A push rod is fixed on the output end of the cylinder. The push rod extends horizontally to the middle of the belt. Two connecting rods are hingedly arranged on the inner wall of the upper end of the frame. A roller C is installed at the movable end of the connecting rod. The outer circumferential walls of the two rollers C are respectively in contact with the inner side walls of the two sides of the belt. The outer wall of the push rod is in contact with the inner side walls of the two connecting rods. A pressure sensor is installed on the push rod, and the pressure sensor is connected to the cylinder. The present invention can wind multiple coils simultaneously, and can actively adjust the tension of the belt in each winding unit to ensure the consistency and stability of the working conditions of each winding unit and improve the winding efficiency of the transformer coil.

[0004] However, in the prior art, when winding coils for some large transformers, manual intervention is generally required for machine winding, and the loading and unloading operations of the winding equipment are usually carried out manually. Due to the large diameter of the bobbin, it is more inconvenient for manual loading and unloading. Especially for the bobbin after winding, there is not only the weight of the bobbin itself, but also the weight of multiple layers of coils. In addition, for a bobbin with a large diameter, in order to stably support the winding shaft and the bobbin during winding, a spreading mechanism is usually arranged on the winding shaft to spread the bobbin from the inside, and the bobbin is prone to deformation during the spreading process, thus affecting the product quality. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem of inconvenient loading and unloading of the bobbin in the prior art, and provide a transformer coil winding machine that can ensure the stable linkage between the bobbin and the winding roller and improve the product quality.

[0006] To solve the above technical problems, the present invention provides the following technical solution: The transformer coil winding machine includes a material roller conveyor body, a wire roller, and a winding frame. The wire roller is rotatably arranged on the winding frame, and a bobbin is sleeved on the wire roller in a linkage manner. The material roller conveyor body is internally provided with wire material and insulating tape for winding on the bobbin. There are two wire rollers, which are symmetrically arranged on the winding frame. A discharge conveyor belt is arranged on the winding frame on the side of the wire roller away from the material roller conveyor body. A feeding conveyor belt is arranged on the winding frame above the wire roller. A bracket is rotatably arranged directly below the wire roller. The upper end of the bracket is adapted to the two ends of the bobbin sleeved on the wire roller. One end of the wire roller is connected to the winding frame through a first cylinder. A limiting ring is arranged at one end of the wire roller close to the first cylinder. A plurality of clamping blocks adapted to the end face of the bobbin are arranged at intervals on the edge of the limiting ring. The inside of the wire roller is a hollow structure. A plurality of side grooves are arranged on the side wall of the wire roller. A central shaft is slidably arranged at the central position inside the wire roller. A plurality of hinge bars are evenly hinged on the side wall of the central shaft. The end face of the hinge bar penetrates through the side groove and is in close fit with the inner wall of the bobbin. Engaging shafts are respectively arranged at the opposite ends of the two wire rollers. The end faces of the two engaging shafts are engaged and linked with each other. The end face of one wire roller is driven to rotate by a second motor.

[0007] Further, a fixing frame is arranged above the winding frame. The bracket is divided into upper and lower sections. The two sections of the bracket are connected by a second cylinder. The lower end of the lower bracket is rotatably connected to the fixing frame. The bracket is driven to rotate by a first motor. Arc-shaped frames adapted to the bobbin are symmetrically arranged at both ends above the bracket. By driving the bracket to rotate by the first motor, the wound bobbin is slowly rotated and transferred to the discharge conveyor belt for stable placement. After stable placement, the discharge conveyor belt is started to transfer the bobbin. By means of the arranged second cylinder, the height of the bracket can be conveniently adjusted for separating and supporting the bobbin.

[0008] Further, the height of one side of the bracket facing the discharge conveyor belt is lower than that of the other side. The edge of the bracket in an inclined state is adapted to the edge of the discharge conveyor belt. The central position of the discharge conveyor belt is recessed. By setting one side of the bracket lower, it is convenient for the bobbin to be unloaded from the bracket smoothly.

[0009] Further, the feeding conveyor belt is provided with limiting grooves adapted to the empty bobbin. A limiting frame is arranged on the winding frame directly above the wire roller. The upper end of the limiting frame is lower than the upper end of the feeding conveyor belt. A buffer plate is rotatably arranged on the winding frame above the discharge conveyor belt. The inner arc surface of the buffer plate faces the wire roller and the upper end is rotatably connected to the winding frame. By means of the arranged buffer plate, the problem that the bobbin is directly impacted on the discharge conveyor belt during the rotation and unloading process of the bracket, causing damage to the bobbin, is avoided. The arranged limiting frame is used to limit the front, rear, left, and right positions of the bobbin during feeding.

[0010] Further, a net pocket is provided on the inner wall of the limiting frame. A spray pipe is provided on the inner wall of the limiting frame at the position of the net pocket. A plurality of spray heads are evenly provided on the spray pipe. The output end of the spray head faces the net pocket. An anti-slip layer is provided on the surface of the net pocket. A blower is provided on the wire winding frame. The spray pipe is communicated with the output end of the blower. By driving the blower, air is blown into the spray pipe, and the air blown out by the spray heads blows the net pocket to bulge, so that the space in the limiting frame is reduced. When the bobbin is loaded and falls into the limiting frame, it is instantly caught by the net pocket, achieving the effect of slow falling.

[0011] Further, the limiting ring is sleeved on the outer wall of the wire roller. A plurality of slide rails are provided at intervals at the edge of the limiting ring. A slider is clamped and slidably arranged in the slide rail. The clamping block is arranged at one end of the slider. The other end of the slider is driven to slide by a driving mechanism. The outer wall of the clamping block is adapted to the outer wall of the bobbin and is evenly provided with a plurality of anti-slip teeth. By driving the driving mechanism, all the sliders are driven to slide on the slide rails, and all the clamping blocks can be extruded and limited towards the outer wall of the bobbin to ensure the stability of the end face of the bobbin. Through the anti-slip teeth provided, the extrusion strength between the clamping block and the end face of the bobbin can be increased to ensure the stability of clamping.

[0012] Further, the driving mechanism includes a toothed ring, a connecting bar and a fixed ring. The fixed ring is arranged at one end of the limiting ring close to the first cylinder. The toothed ring is rotatably arranged on the fixed ring. Both ends of the connecting bar are respectively hinged to the toothed ring and one end of the slider.

[0013] Further, a bottom frame is provided on the wire winding frame. Two main gears meshing with the toothed ring are rotatably arranged on the bottom frame. The two main gears are linked by a telescopic shaft. The main gears are driven to rotate by a third motor. A toothed sleeve meshing with the toothed ring is slidably arranged outside the first cylinder. The toothed sleeve is connected to the wire winding frame by a third cylinder. Tooth plates are respectively provided on the wire winding frame and the toothed ring. A first gear is meshed between the two tooth plates. The first gear is rotatably connected to the bottom frame. By driving the third motor to drive the main gears to rotate, the main gears are meshed with the toothed ring to rotate. When rotating, the connecting bar tends to be horizontal. At this time, the slider pulls the clamping block close to the bobbin for clamping. When the clamping is stable, the rotation of the main gears is paused. The piston rod of the third cylinder extends to push the toothed sleeve to be sleeved on the toothed ring. During the movement process, the tooth plate moves, driving the first gear and the other tooth plate to move correspondingly, realizing the synchronous reverse movement of the main gear and the toothed sleeve. When the toothed sleeve is sleeved on the toothed ring, the main gear is separated from the toothed ring, realizing the limit of the rotation angle of the toothed ring. Specifically, only a bracket is slidably arranged on the bottom frame. A set of main gears has two and meshes with each other. The two main gears are arranged on the bottom frame through the bracket. The main gears are rotatably connected to the end face of the bottom frame. An inner shaft is rotatably arranged at the center of the bottom frame. The inner shaft is driven to rotate by a third motor. The inner shaft is a telescopic shaft, and the main gear is connected to the end face of the inner shaft.

[0014] Further, two of the hinge bars form a group, and the end faces of the two hinge bars are hinged. A plurality of support bars are provided on the inner wall of the wire roller. One end of the support bar away from the wire roller is slidably arranged on the outer wall of the central shaft. One end of each hinge bar away from the other is respectively hinged to the side wall of the central shaft and one end of the support bar close to the central shaft. A push block is hinged to the end faces of the two hinge bars. The push block penetrates through the side groove and extends outside. The end face of the central shaft is connected to a fourth cylinder. By driving the central shaft to slide through the fourth cylinder, the two hinge bars in each group are squeezed to approach each other. At this time, the push block on the end face of the hinge bar extends out of the side groove and closely fits the inner wall of the wire drum, achieving a supporting effect.

[0015] Further, one end of each of the two engaging shafts arranged oppositely is respectively provided with a clamping groove and a clamping block, and the clamping groove and the clamping block are engaged with each other.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. In the present invention, the feeding conveyor belt cooperates with the bracket for feeding, and the discharging conveyor belt cooperates with the bracket for discharging. During the winding process, through the cooperation of the limiting ring and the hinge bars, the stable linkage between the wire drum and the wire roller is ensured.

[0018] 2. In the present invention, a plurality of clamping blocks on the limiting ring are driven to clamp and fix the end face of the wire drum, realizing the preliminary fixation between the wire drum and the wire roller. Then, the central shaft is driven to drive a plurality of hinge bars to be hinged and bent. The bent part extends out of the side groove and tightly abuts against the inner wall of the wire drum. Since the hinge bars are evenly distributed in the wire drum, it can effectively avoid the situation that the wire drum is deformed and damaged due to excessive pressure on a certain part of the wire drum during the support process of the wire drum.

[0019] 3. In the present invention, by providing a buffer plate, the problem that the wire drum is directly impacted on the discharging conveyor belt during the rotation and discharging process of the bracket, causing damage to the wire drum, is avoided. By providing a limiting frame, the front, rear, left, and right positions of the wire drum during feeding are limited.

[0020] 4. In the present invention, by driving the fan to blow air into the nozzle, the air blown out by the nozzle makes the net bag bulge, reducing the space inside the limiting frame. When the wire drum falls into the limiting frame during feeding, it is instantly caught by the net bag, achieving the effect of slow falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] Figure 1 It is a perspective view of a transformer coil winding machine provided by the present invention.

[0023] Figure 2 Schematic diagram of the wire winding frame of a transformer coil winding machine provided by the present invention.

[0024] Figure 3 Front schematic diagram of the wire winding frame of a transformer coil winding machine provided by the present invention.

[0025] Figure 4 Schematic diagram of the limit frame of a transformer coil winding machine provided by the present invention.

[0026] Figure 5 Assembly schematic diagram of the wire roller and the bobbin of a transformer coil winding machine provided by the present invention.

[0027] Figure 6 Schematic diagram of the wire roller of a transformer coil winding machine provided by the present invention.

[0028] Figure 7 Schematic diagram of the limit ring of a transformer coil winding machine provided by the present invention.

[0029] Figure 8 Assembly schematic diagram of the limit ring and the main gear of a transformer coil winding machine provided by the present invention.

[0030] Figure 9 Internal structure schematic diagram of the wire roller of a transformer coil winding machine provided by the present invention.

[0031] Legend description:

[0032] 1. Feeding roller conveyor body; 2. Wire roller; 3. Wire winding frame; 4. Bobbin; 5. Discharging conveyor belt; 6. Loading conveyor belt; 7. Bracket; 8. First cylinder; 911. Limit ring; 912. Clamping block; 913. Side groove; 914. Central shaft; 915. Hinge strip; 916. Engaging shaft; 10. Second motor; 111. Fixed frame; 112. Second cylinder; 113. First motor; 114. Arc-shaped frame; 121. Limit groove; 122. Limit frame; 123. Buffer plate; 131. Mesh bag; 132. Spray pipe; 133. Nozzle; 135. Fan; 141. Slide rail; 142. Slide block; 143. Anti-slip teeth; 152. Connecting strip; 153. Fixed ring; 161. Bottom frame; 162. Tooth ring; 163. Main gear; 164. Third motor; 165. Tooth sleeve; 166. Third cylinder; 167. Tooth plate; 168. First gear; 169. Inner shaft; 171. Pusher block; 172. Fourth cylinder; 173. Support strip; 181. Card slot; 182. Card block. Detailed implementation manners

[0033] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following detailed description of the specific embodiments of the present invention will be provided in conjunction with the accompanying drawings of the specification.

[0034] In the following description, numerous specific details are set forth to facilitate a thorough understanding of the present invention. However, the present invention may be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the spirit of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0035] Secondly, as used herein, an "embodiment" or "embodiments" refer to specific features, structures, or characteristics that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive of other embodiments.

[0036] Please refer to Figures 1 - 2 , the present invention provides a technical solution: a transformer coil winding machine, including a material roller conveying body 1, a wire roller 2, and a winding frame 3. The wire roller 2 is rotatably arranged on the winding frame 3, and a bobbin 4 is coaxially sleeved on the wire roller 2. The material roller conveying body 1 internally houses wire materials and insulating tapes for winding on the bobbin 4. There are two wire rollers 2, symmetrically arranged on the winding frame 3. A discharging conveyor belt 5 is provided on the winding frame 3 on the side of the wire roller 2 away from the material roller conveying body 1. A feeding conveyor belt 6 is provided on the winding frame 3 above the wire roller 2. A bracket 7 is rotatably arranged directly below the wire roller 2. The upper end of the bracket 7 is adapted to the two ends of the bobbin 4 sleeved on the wire roller 2. One end of the wire roller 2 is connected to the winding frame 3 through a first cylinder 8. A limiting ring 911 is provided at one end of the wire roller 2 close to the first cylinder 8. A plurality of clamping blocks 912 adapted to the end face of the bobbin 4 are spaced apart at the edge of the limiting ring 911. The interior of the wire roller 2 is a hollow structure. A plurality of side grooves 913 are provided on the side wall of the wire roller 2. A central shaft 914 is slidably arranged at the central position inside the wire roller 2. A plurality of hinged bars 915 are evenly hinged on the side wall of the central shaft 914. The end face of the hinged bar 915 penetrates through the side groove 913 and closely fits with the inner wall of the bobbin 4. Engaging shafts 916 are respectively provided at the opposite ends of the two wire rollers 2. The end faces of the two engaging shafts 916 are engaged and linked with each other. The rotation of one end face of the wire roller 2 is driven by a second motor 10.

[0037] As Figure 3As shown in the figure, a fixed frame 111 is provided above the winding frame 3. The bracket 7 is divided into upper and lower sections. The two sections of the bracket 7 are connected by a second air cylinder 112. The lower end of the lower bracket 7 is rotatably connected to the fixed frame 111. The bracket 7 is driven to rotate by a first motor 113. Arc-shaped frames 114 adapted to the bobbin 4 are symmetrically provided at both ends above the bracket 7. The bracket 7 is driven to rotate by the first motor 113, and the wound bobbin 4 is slowly rotated and transferred to the unloading conveyor belt 5 for stable placement. After stable placement, the unloading conveyor belt 5 is started to transfer the bobbin 4. By providing the second air cylinder 112, the height of the bracket 7 is conveniently adjusted for separating and supporting the bobbin 4.

[0038] One side of the bracket 7 facing the unloading conveyor belt 5 is lower than the other side. The edge of the bracket 7 in the inclined state is adapted to the edge of the unloading conveyor belt 5. The center position of the unloading conveyor belt 5 is recessed. By setting one side of the bracket 7 lower, it is convenient for the bobbin 4 to be unloaded smoothly from the bracket 7.

[0039] Limit slots 121 adapted to the empty bobbin 4 are provided on the loading conveyor belt 6. A limit frame 122 is provided on the winding frame 3 directly above the wire roller 2. The upper end of the limit frame 122 is lower than the upper end of the loading conveyor belt 6. A buffer plate 123 is rotatably provided on the winding frame 3 above the unloading conveyor belt 5. The inner arc surface of the buffer plate 123 faces the wire roller 2 and the upper end is rotatably connected to the winding frame 3. A spring is provided between the buffer plate 123 and the winding frame 3. By providing the buffer plate 123, the problem that the bobbin 4 is directly impacted on the unloading conveyor belt 5 during the rotation and unloading process of the bracket 7, causing damage to the bobbin 4, is avoided. The limit frame 122 is provided for limiting the front, rear, left and right positions of the bobbin 4 during loading.

[0040] As Figure 4 shown, a net pocket 131 is provided on the inner wall of the limit frame 122. A spray pipe 132 is provided on the inner wall of the limit frame 122 at the position of the net pocket 131. A plurality of spray nozzles 133 are evenly provided on the spray pipe 132. The output end of the spray nozzle 133 faces the net pocket 131. An anti-slip layer is provided on the surface of the net pocket 131. A blower 135 is provided on the winding frame 3. The spray pipe 132 is communicated with the output end of the blower 135. By driving the blower 135, air is blown into the spray pipe 132, and the air blown out by the spray nozzles 133 blows the net pocket 131 to bulge, so that the space in the limit frame 122 is reduced. When the bobbin 4 falls into the limit frame 122 during loading, it is instantly caught by the net pocket 131, achieving the effect of slow falling.

[0041] As Figures 5 - 6As shown in the figure, the limit ring 911 is sleeved on the outer wall of the wire roller 2. A plurality of slide rails 141 are arranged at intervals at the edge of the limit ring 911. A slider 142 is clamped and slidably arranged in the slide rail 141. A clamping block 912 is arranged at one end of the slider 142. The other end of the slider 142 is driven to slide by a driving mechanism. The outer wall of the clamping block 912 is adapted to the outer wall of the bobbin 4 and is evenly provided with a plurality of anti-slip teeth 143. By driving the driving mechanism, all the sliders 142 are driven to slide on the slide rails 141, and all the clamping blocks 912 can be extruded and limited towards the outer wall of the bobbin 4 to ensure the stability of the end face of the bobbin 4. Through the arranged anti-slip teeth 143, the extrusion strength between the clamping block 912 and the end face of the bobbin 4 can be increased to ensure the stability of the clamping.

[0042] As Figures 7 - 8 shown in the figure, the driving mechanism includes a toothed ring 162, a connecting bar 152 and a fixing ring 153. The fixing ring 153 is arranged at one end of the limit ring 911 close to the first cylinder 8. The toothed ring 162 is rotatably arranged on the fixing ring 153. Both ends of the connecting bar 152 are respectively hinged to the toothed ring 162 and one end of the slider 142.

[0043] A base frame 161 is arranged on the winding frame 3. Two main gears 163 meshing with the toothed ring 162 are rotatably arranged on the base frame 161. The two main gears 163 are linked by a telescopic shaft. The main gear 163 is driven to rotate by a third motor 164. A toothed sleeve 165 meshing with the toothed ring 162 is slidably arranged outside the first cylinder 8. The toothed sleeve 165 is connected to the winding frame 3 by a third cylinder 166. Tooth plates 167 are respectively arranged on the winding frame 3 and the toothed ring 162. A first gear 168 is meshed between the two tooth plates 167. The first gear 168 is rotatably connected to the base frame 161. The third motor 164 drives the main gear 163 to rotate. The main gear 163 meshes with the toothed ring 162 and rotates. When rotating, the connecting bar 152 tends to be horizontal. At this time, the slider 142 pulls the clamping block 912 close to the bobbin 4 for clamping. When the clamping is stable, the rotation of the main gear 163 is paused. The piston rod of the third cylinder 166 extends to push the toothed sleeve 165 to be sleeved on the toothed ring 162. During the movement process, the tooth plate 167 moves to drive the first gear 168 and the other tooth plate 167 to move correspondingly, realizing the synchronous reverse movement of the main gear 163 and the toothed sleeve 165. When the toothed sleeve 165 is sleeved on the toothed ring 162, the main gear 163 is separated from the toothed ring 162, realizing the rotation angle limit of the toothed ring 162. Specifically, only a bracket is slidably arranged on the base frame 161. A set of main gears 163 has two and meshes with each other. The two main gears 163 are arranged on the base frame 161 through the bracket. The main gear 163 is rotatably connected to the end face of the base frame 161. An inner shaft 169 is rotatably arranged at the center of the inside of the base frame 161. The inner shaft 169 is driven to rotate by a third motor 164. Among them, the inner shaft is a telescopic shaft, and the main gear 163 is connected to the end face of the inner shaft 169.

[0044] As Figure 9As shown in the figure, two hinge bars 915 are in a group. The end faces of the two hinge bars 915 are hinged. A plurality of support bars 173 are provided on the inner wall of the wire roller 2. One end of the support bar 173 away from the wire roller 2 is slidably arranged on the outer wall of the central shaft 914. One end of the hinge bar 915 away from each other is respectively hinged to the side wall of the central shaft 914 and one end of the support bar 173 close to the central shaft 914. A push block 171 is hinged to the end faces of the two hinge bars 915. The push block 171 penetrates through the side groove 913 and extends outside. The piston rod of the fourth cylinder 172 extends out from the end face of the central shaft 914. By driving the central shaft 914 to slide through the fourth cylinder 172, the two hinge bars 915 in each group are extruded to be close to each other. At this time, the push block 171 on the end face of the hinge bar 915 extends out of the side groove 913 and is in close contact with the inner wall of the bobbin 4, achieving the support effect.

[0045] One end of the two engaging shafts 916 arranged oppositely is respectively provided with a clamping groove 181 and a clamping block 182, and the clamping groove 181 and the clamping block 182 are engaged with each other.

[0046] Working principle: Before the winding operation, by placing a plurality of empty bobbins 4 stably in the limiting grooves 121 on the feeding conveyor belt 6 in advance, and contracting the two first cylinders 8, driving the two wire rollers 2 to move away from each other, driving the feeding conveyor belt 6 to rotate, driving a bobbin 4 to fall into the limiting frame 122, and smoothly falling onto the bracket 7 through the limiting frame 122. At this time, the central axes of the bobbin 4 and the two wire rollers 2 are on the same straight line. The first cylinder 8 drives the two wire rollers 2 to penetrate into the two ends of the bobbin 4 at a uniform speed until the two limiting rings 911 abut against the end face of the bobbin 4, and drives the plurality of clamping blocks 912 on the limiting rings 911 to clamp and fix the end face of the bobbin 4, realizing the preliminary fixation between the bobbin 4 and the wire rollers 2. Then, drive the central shaft 914 to drive the plurality of hinge bars 915 to be hinged and bent. The bent part extends out of the side groove 913 and abuts tightly against the inner wall of the bobbin 4. Since the hinge bars 915 are evenly distributed in the bobbin 4, it can effectively avoid the situation that the bobbin 4 is deformed and damaged due to excessive pressure on a certain part of the bobbin 4 during the support process of the bobbin 4. After the installation is completed, separate the bracket 7 from the bobbin 4, start the material roller conveyor body 1, wind the end faces of the built-in coil and the insulating tape around the bobbin 4. During the winding process, drive the second motor 10 to drive the wire roller 2 and the bobbin 4 to rotate, realizing the uniform winding operation. After the winding is completed, unload the material. Place the bracket 7 under the two ends of the bobbin 4 again to support it. Then, completely remove the support for the bobbin 4 on the wire roller 2 and contract the first cylinder 8, so that the bobbin 4 is completely separated from the wire roller. At this time, rotate the bracket 7 towards the unloading conveyor belt 5 side, place the bobbin 4 stably on the unloading conveyor belt 5, drive the unloading conveyor belt 5 to rotate, transfer the bobbin 4 to other places for storage. After the bracket 7 rotates back to the original position, drive the feeding conveyor belt 6 to rotate, load the empty bobbin 4, and repeat the above steps.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered by the scope of the claims of the present invention.

Claims

1. A transformer coil winding machine, comprising a material roller conveyor body (1), a wire roller (2) and a winding frame (3), wherein the wire roller (2) is rotatably arranged on the winding frame (3), a wire drum (4) is linked to the wire roller (2), and the material roller conveyor body (1) is internally provided with wire material and an insulating tape wound on the wire drum (4), characterized in that: The wire rollers (2) are provided with two wire rollers (2) which are symmetrically arranged on the winding frame (3); a discharge conveyor belt (5) is provided on the winding frame (3) on the side of the wire roller (2) away from the material roller conveyor body (1); a loading conveyor belt (6) is provided on the winding frame (3) above the wire roller (2); a bracket (7) is rotatably provided directly below the wire roller (2); the upper end of the bracket (7) is used to adapt to the two ends of the wire drum (4) sleeved on the wire roller (2); one end of the wire roller (2) is connected to the winding frame (3) via a first cylinder (8); a limiting ring (911) is provided on the end of the wire roller (2) close to the first cylinder (8); a plurality of spaced-apart members which are in contact with the wire drum (4) are provided at the edge of the limiting ring (911). The wire roller (2) has a hollow structure inside, and the side wall of the wire roller (2) is provided with a plurality of side grooves (913). A central shaft (914) is slidably provided at the center position inside the wire roller (2). The side wall of the central shaft (914) is evenly hinged with a plurality of hinge bars (915). The end faces of the hinge bars (915) pass through the side grooves (913) and fit tightly with the inner wall of the wire roller (4). The ends of the two wire rollers (2) that are arranged opposite to each other are respectively provided with a locking shaft (916). The end faces of the two locking shafts (916) are mutually locked and linked, and the end face of one wire roller (2) is driven to rotate by a second motor (10); The feeding conveyor belt (6) is provided with a limiting groove (121) adapted to the empty wire drum (4); the winding frame (3) directly above the wire roller (2) is provided with a limiting frame (122); the upper end of the limiting frame (122) is lower than the upper end of the feeding conveyor belt (6); the winding frame (3) above the discharging conveyor belt (5) is rotatably provided with a buffer plate (123); the inner arc surface of the buffer plate (123) is arranged toward the wire roller (2) and the upper end is rotatably connected to the winding frame (3); A net bag (131) is provided on the inner wall of the limit frame (122), a nozzle (132) is provided on the inner wall of the limit frame (122) located at the net bag (131), a plurality of nozzles (133) are evenly arranged on the nozzle (132), the output ends of the nozzles (133) face the net bag (131), an anti-slip layer is provided on the surface of the net bag (131), a fan (135) is provided on the winding frame (3), and the nozzle (132) is connected to the output end of the fan (135).

2. A transformer coil winding machine according to claim 1, characterized in that: A fixing frame (111) is provided above the winding frame (3); the bracket (7) is divided into two sections, the upper and lower sections of the bracket (7); the two sections of the bracket (7) are connected via a second cylinder (112); the lower end of the lower bracket (7) is rotatably connected to the fixing frame (111); the bracket (7) is driven to rotate by a first motor (113); and arc-shaped frames (114) adapted to the bobbin (4) are symmetrically provided at both ends above the bracket (7).

3. A transformer coil winding machine according to claim 1, characterized in that: The height of the bracket (7) on one side facing the discharge conveyor belt (5) is lower than that on the other side; the edge of the bracket (7) in an inclined state is matched with the edge of the discharge conveyor belt (5); and the center of the discharge conveyor belt (5) is concave.

4. A transformer coil winding machine according to claim 1, characterized in that: The limiting ring (911) is sleeved on the outer wall of the wire roller (2); a plurality of slide rails (141) are arranged at intervals at the edge of the limiting ring (911); a slider (142) is provided in the slide rail (141) for engagement and sliding; the clamping block (912) is arranged at one end of the slider (142); the other end of the slider (142) is driven to slide by a driving mechanism; the outer wall of the clamping block (912) is adapted to the outer wall of the wire drum (4) and is evenly provided with a plurality of anti-slip teeth (143).

5. A transformer coil winding machine according to claim 4, characterized in that: The driving mechanism comprises a gear ring (162), a connecting strip (152) and a fixing ring (153); the fixing ring (153) is arranged at one end of the limiting ring (911) close to the first cylinder (8); the gear ring (162) is rotatably arranged on the fixing ring (153); and two ends of the connecting strip (152) are respectively hingedly connected to the gear ring (162) and one end of the sliding block (142).

6. The transformer coil winding machine according to claim 1, characterized in that: The winding frame (3) is provided with a base frame (161), and two main gears (163) meshing with a gear ring (162) are rotatably provided on the base frame (161). The two main gears (163) are linked by a telescopic shaft, and the main gears (163) are driven to rotate by a third motor (164). A gear sleeve (165) meshing with the gear ring (162) is slidably provided on the outer side of the first cylinder (8), and the gear sleeve (165) is connected to the winding frame (3) through a third cylinder (166). The winding frame (3) and the gear ring (162) are respectively provided with gear plates (167), and a first gear (168) meshing between the two gear plates (167). The first gear (168) is rotatably connected to the base frame (161).

7. The transformer coil winding machine according to claim 1, characterized in that: The two hinged bars (915) form a group, and the end surfaces of the two hinged bars (915) are hingedly arranged. The inner wall of the line roller (2) is provided with a plurality of support bars (173). The end of the support bar (173) away from the line roller (2) is slidably arranged with the outer wall of the central axis (914). The ends of the hinged bars (915) away from each other are respectively hingedly arranged with the side wall of the central axis (914) and the end of the support bar (173) close to the central axis (914). The end surfaces of the two hinged bars (915) are hingedly provided with push blocks (171), and the push blocks (171) penetrate the side groove (913) and extend outside. The end surface of the central axis (914) is connected to the fourth cylinder (172).

8. The transformer coil winding machine according to claim 1, characterized in that: A clamping groove (181) and a clamping block (182) are respectively provided at one end of the two clamping shafts (916) which are arranged opposite to each other, and the clamping groove (181) and the clamping block (182) are arranged to be clamped with each other.

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