A wire stripping device for power transformer processing

Abstract

This solution provides a patent specification for a wire stripping device used in the processing of power transformers, mainly introducing a device that can automatically strip, convey, and wind and connect the wires during the processing of power transformers. The device includes a base, a slide rail, a cutting mechanism, a peeling mechanism, a conveying mechanism, a connecting component, etc. Among them, the cutting mechanism moves on the slide rail through a driving mechanism to cut the outer skin of the wire; the peeling mechanism is connected to the cutting mechanism to separate the cut wire outer skin from the wire core; the conveying mechanism is used to convey the peeled wire into the wire stripping device; the connecting component includes a winding mechanism, a clamping mechanism, and a transmission mechanism, which can automatically connect the wire after stripping to the external wire when the conveying mechanism stops conveying. This device can simplify the wire connection steps in the processing of power transformers, save manpower, improve production efficiency, and has certain safety and usage effects.

Description

Technical Field

[0001] The present invention relates to the technical field of power transformer manufacturing, and particularly to a wire stripping device for power transformer processing. Background Art

[0002] A power transformer is a device used to change the AC voltage. It transfers the electrical energy in one circuit to another circuit through the principle of electromagnetic induction while changing the magnitude of the voltage. In the power system, transformers play a crucial role and are widely used in occasions such as power transmission, distribution, and conversion.

[0003] In the production process of power transformers, as the medium for electrical energy transmission, the connection quality of wires directly affects the performance and safety of transformers. To ensure reliable connection between wires, wire stripping is usually required, that is, removing the insulation layer on the outer layer of the wire to expose the internal metal conductor for subsequent connection operations such as welding and crimping.

[0004] In the existing wire stripping, wires are usually stripped manually or using simple mechanical devices. This process is not only inefficient but also difficult to stably control the wire stripping quality. For the connection of two stripped wires, it mostly relies on manual operation and is carried out by means such as welding or winding. Such connection methods are not only inefficient but also have problems with unstable connection quality. In addition, due to the intervention of manual operation, it not only increases the production cost and labor intensity but also may cause looseness or poor contact at the wire connection, thereby affecting the overall performance and safety of the power transformer. Therefore, there is an urgent need for a device that can efficiently and stably complete wire stripping and automatic winding connection to overcome the deficiencies of the existing technology and meet the requirements of power transformer production.

[0005] For this reason, we propose a wire stripping device for power transformer processing. Summary of the Invention

[0006] The purpose of the present invention is to provide a wire stripping device for power transformer processing to solve the above deficiencies in the existing technology.

[0007] To achieve the above purpose, the present invention provides the following technical solution: including a base and a slide rail provided on the base. It is characterized in that the wire stripping device for power transformer processing further includes:

[0008] A cutting mechanism for cutting the outer skin of the wire, which is provided on the slide rail through a driving mechanism. The driving mechanism has two stroke actions. The first stroke action: driving the cutting mechanism to cut the outer skin of the wire; The second stroke action: driving the cutting mechanism to separate from the cut wire.

[0009] A wire stripping mechanism is provided on the base and connected to the cutting mechanism. After the cutting mechanism cuts off the outer skin of the wire, the wire stripping mechanism separates the cut-off outer skin of the wire from the wire core.

[0010] A conveying mechanism is provided on the base and connected to the cutting mechanism. When the cutting mechanism is driven by the driving mechanism to separate from the wire, the conveying mechanism is used to convey the stripped wire to the side away from the conveying mechanism inside the wire stripping device.

[0011] A connecting component is provided on the base, and the connecting component is used to connect the wire conveyed by the conveying mechanism with an external wire.

[0012] The connecting component includes a winding mechanism, a clamping mechanism and a transmission mechanism. The winding mechanism and the clamping mechanism are respectively connected to the cutting mechanism through the transmission mechanism. When the conveying mechanism stops conveying the wire and the driving mechanism is still driving the cutting mechanism to be in a state of mutual separation from the wire, after the clamping mechanism is driven by the transmission mechanism to clamp and fix the external wire to be connected, the winding mechanism winds the wire conveyed by the conveying mechanism onto the outside of the wire clamped by the clamping mechanism.

[0013] As a further description of the above technical solution: The cutting mechanism includes a second lead screw rotatably provided on the base and two lifting plates threadedly installed on the second lead screw and slidably fitted at the ends in a slide rail. Upper connecting rods and lower connecting rods are respectively fixed on the two lifting plates. A tool holder is installed between the surfaces of the upper connecting rod and the lower connecting rod close to each other through a first spring, and multiple groups of stripping knives for stripping the outer skin of the wire are provided on the tool holder. The driving mechanism is connected to the second lead screw, and the driving mechanism is used to drive the second lead screw to rotate.

[0014] As a further description of the above technical solution: A cross plate is fixedly provided on the surface of the housing of the slide rail. The wire stripping mechanism includes two driving shafts rotatably provided on the cross plate, a first meshing tooth provided on the outer surface of the driving shaft, and two racks three fixedly provided on the upper connecting rod and meshing with the first meshing tooth. A first lead screw is designed at the end of each of the two driving shafts. An internally threaded block is threadedly provided on each of the two first lead screws, and a pressing plate is installed on each of the two internally threaded blocks through an elastic member.

[0015] As a further description of the above technical solution: The wire stripping mechanism further includes two limiting clamp blocks installed on the base through a vertical frame, and a notch adapted to the end of the pressing plate is provided on the limiting clamp block.

[0016] As a further description of the above technical solution: The conveying mechanism includes two feeding wheels rotatably provided on a gantry. The gantry is fixedly provided on the base, and the feeding action of the wire is realized through the intermittence between the two feeding wheels.

[0017] The conveying mechanism further includes a first rack fixedly arranged on the lower connecting rod, and a first gear rotatably arranged on the gantry and respectively connected to the two feeding wheels. A second gear meshing with the first rack is also rotatably arranged on the surface of the gantry close to the first gear. A first protrusion inserted into the interior of one of the first gears is arranged on the second gear. A first clamping block is rotatably arranged on the first protrusion through a torsion spring. Ratchet grooves one are circumferentially arrayed on the inner wall surface of the second gear, and the first clamping block abuts against the surface of the ratchet grooves one. Through the mutually abutted first clamping block and ratchet grooves one, the one-way power transmission action of the second gear on the first gear is realized.

[0018] As a further description of the above technical solution: The clamping mechanism includes a mounting plate arranged on the base through a frame. A plurality of positive and negative lead screws are rotatably arranged in the mounting plate. Two driving plates are threadedly arranged on each positive and negative lead screw. Clamping plates slidably arranged on the surface of the mounting plate are arranged on the two driving plates, and the two clamping plates are connected by a second spring. The transmission mechanism is arranged between the end of one of the positive and negative lead screws at the end and the lower connecting rod. When the lower connecting rod moves away from the wire, the positive and negative lead screws are rotated through the transmission mechanism, and the two clamping plates are made to approach each other.

[0019] As a further description of the above technical solution: The winding mechanism includes turntables that are the same in number as the positive and negative lead screws and are rotatably arranged on the mounting plate through telescopic rods. Meshing teeth three are arranged on the surface of each turntable, and the meshing teeth three on adjacent turntables mesh with each other. A winding seat is fixedly arranged at the eccentric position on the surface of each turntable. The meshing teeth three on the surface of the turntable at one end are connected to the lower connecting rod through a transmission mechanism. When the lower connecting rod moves away from the wire, the plurality of turntables are rotated through the transmission mechanism.

[0020] As a further description of the above technical solution: A chute for slidably mounting a slider is provided on the base. The transmission mechanism includes one end of a rotating plate rotatably arranged on the lower connecting rod, and the other end of the rotating plate is rotatably arranged with the slider. A third gear and a fourth gear are rotatably arranged on the base. The axis of the third gear is vertically upward, and the axis of the third gear is arranged in the direction perpendicular to the moving direction of the slider. A second rack and meshing teeth two are arranged on the slider. When the lower connecting rod moves away from the wire, after the second gear meshes with the third gear, the meshing teeth two mesh with the fourth gear, and the fourth gear and the end of a group of the positive and negative lead screws at one end are installed with a synchronous belt one through a synchronous pulley;

[0021] A connecting shaft is fixed on the gear three, and a driving wheel is installed on the top of the connecting shaft through a moving part. The driving wheel is rotatably set on the inner wall surface of the gear five, and a ratchet groove two is clamped on the inner wall of the gear five. The end of the driving wheel extending into the gear five is installed with a clamping block two that is against the surface of the ratchet groove two through a torsion spring. The gear five is engaged with the meshing tooth three on one of the turntables.

[0022] As a further description of the above technical solution: the moving part includes a movable ring slidably arranged on the connecting shaft, an insertion rod arranged on the end of the connecting shaft and passing through the driving wheel and gear five, wherein the driving wheel is provided with a card slot, and a limit block is fixedly provided on the outer circumference of the insertion rod and is embedded in the card slot; a support frame slidably connected to the lifting block is fixedly provided on the mounting plate, and a cam is fixedly provided on the end of the forward and reverse screw at one end, and the cam abuts against the bottom surface of the lifting block;

[0023] The moving part also includes multiple groups of snap rings respectively arranged on the gear five and the outer peripheral side of the turntable. The multiple groups of snap rings are staggered, and the protruding positions of adjacent snap rings are snapped into the recessed positions of adjacent snap rings.

[0024] As a further description of the above technical solution: multiple groups of turntables are provided with notches for detaching the wires after connection, and elastic plates are arranged at the notches of the turntables through torsion springs, and teeth that are three-phase compatible with the meshing teeth are arranged on the outer peripheral surface of the elastic plates.

[0025] In the above technical solution, the wire stripping device for processing a power transformer provided by the present invention has the following beneficial effects:

[0026] Efficient Automatic Wire Stripping: This device automatically cuts the wire sheath through the precise coordination of the drive and cutting mechanisms. Driven by the drive, the cutting mechanism precisely moves along the guide rail to the wire location, where it rapidly severing the wire sheath with the stripping blade. This significantly improves stripping efficiency and accuracy, while reducing the complexity and errors associated with manual operation.

[0027] Automatic stripping and conveying: The stripping mechanism is tightly linked to the cutting mechanism. Once the cutting mechanism has cut the wire sheath, the stripping mechanism activates immediately, easily separating the sheath from the core. Simultaneously, the conveying mechanism automatically transports the stripped wire to the stripping unit as the cutting mechanism separates from the wire, preparing it for subsequent wire connection.

[0028] Automatic winding connection: The winding mechanism, clamping mechanism, and transmission mechanism in the connection component work together. When the conveying mechanism stops conveying, it can automatically connect the wire with the outer wire after wire stripping. The clamping mechanism first clamps the outer wire that has been stripped, and then the winding mechanism winds the wire that has been stripped tightly around the outer wire through rotation, achieving the automatic connection of the two wires and greatly simplifying the wire connection steps in the power transformer processing. Brief Description of the Drawings

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0030] Figure 1 Schematic diagram of the structure of the whole from one angle provided by the embodiment of the present invention;

[0031] Figure 2 Schematic diagram of the structure of the whole from another angle provided by the embodiment of the present invention;

[0032] Figure 3 Schematic diagram of the overall structure of the wire stripping mechanism provided by the embodiment of the present invention;

[0033] Figure 4 Schematic diagram of the partial structure of the wire stripping mechanism provided by the embodiment of the present invention;

[0034] Figure 5 Schematic diagram of the structure of the whole from the third angle provided by the embodiment of the present invention;

[0035] Figure 6 Schematic diagram of the partial structure of the conveying mechanism provided by the embodiment of the present invention;

[0036] Figure 7 Schematic diagram of the structure of the cutting mechanism provided by the embodiment of the present invention;

[0037] Figure 8 provided by the embodiment of the present invention Figure 5 Enlarged schematic diagram of the structure at A;

[0038] Figure 9 Schematic diagram of the structure of the connection component provided by the embodiment of the present invention;

[0039] Figure 10 provided by the embodiment of the present invention Figure 9 Enlarged schematic diagram of the structure at B;

[0040] Figure 11Schematic diagram of the structure of a part of the connection component provided by an embodiment of the present invention;

[0041] Figure 12 Schematic diagram of the cross-sectional structure of the clamping mechanism in the connection component provided by an embodiment of the present invention;

[0042] Figure 13 Schematic diagram of the structure of a part of the connection component provided by an embodiment of the present invention;

[0043] Figure 14 Schematic diagram of the structure of multiple turntables connected provided by an embodiment of the present invention;

[0044] Figure 15 Schematic diagram of the top view of the turntable provided by an embodiment of the present invention;

[0045] Figure 16 Schematic diagram of the structure of the feed wheel provided by an embodiment of the present invention.

[0046] Explanation of reference numerals:

[0047] 1. Base; 2. Gantry; 3. Feed wheel; 31. First gear; 32. First protrusion; 33. First clamping block; 34. Second gear; 35. First ratchet groove; 36. First rack; 4. Slide rail; 5. Third rack; 51. First screw rod; 52. Drive shaft; 53. First meshing tooth; 54. Internal thread block; 55. Vertical frame; 56. Limit clamping block; 57. Pressing plate; 6. Upper connecting rod; 61. Second screw rod; 62. Lifting plate; 63. Lower connecting rod; 64. First spring; 65. Tool holder; 66. Stripping knife; 67. Limit column; 7. Horizontal plate; 8. Chute; 81. Slide block; 82. Rotating plate; 83. First synchronous belt; 84. Third gear; 85. Coupling shaft; 86. Second rack; 87. Second meshing tooth; 88. Fourth gear; 89. Second synchronous belt; 810. Clamping plate; 811. Telescopic rod; 812. Winding seat; 813. Turntable; 814. Third meshing tooth; 815. Fifth gear; 816. Driving wheel; 817. Lifting block; 818. Cam; 819. Mounting plate; 820. Second spring; 821. Driving plate; 822. Positive and negative screw rod; 823. Movable ring; 824. Insert rod; 825. Limit block; 826. Card slot; 827. Second clamping block; 828. Second ratchet groove; 829. Clamping ring; 830. Elastic plate; 9. Support frame; 10. Frame. Detailed implementation manners

[0048] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0049] Please refer to Figures 1 - 16, an embodiment of the present invention provides a technical solution: including a base 1 and a slide rail 4 provided on the base 1. The base 1 is used for installing various components. Among them, universal wheels can be provided at the bottom of the base 1 for easy movement. This is a conventional setting method for universal wheels and will not be elaborated here. The wire stripping device for power transformer processing further includes:

[0050] A driving mechanism, a cutting mechanism provided on the slide rail 4 for cutting the outer skin of the wire. The driving mechanism has two stroke actions. The first stroke action: driving the cutting mechanism to cut the outer skin of the wire; the second stroke action: driving the cutting mechanism to separate from the cut wire. When the driving mechanism is started, the cutting mechanism moves towards the position close to the wire, so as to cut the outer skin of the wire through the set cutting mechanism. After the wire is cut, the driving mechanism makes the cutting mechanism move away from the wire, and the cutting operation of the outer skin of the wire can be realized. Among them, the driving mechanism is a driving motor;

[0051] A peeling mechanism, which is provided on the base 1 and connected to the cutting mechanism. After the cutting mechanism cuts the outer skin of the wire, the peeling mechanism is used to separate the cut wire outer skin from the wire core; after the cutting mechanism cuts the outer skin of the wire, the set peeling mechanism can realize the separation of the cut wire skin from the wire, without manual peeling, and has the effect of automatically peeling the skin;

[0052] A conveying mechanism, which is provided on the base 1 and connected to the cutting mechanism. When the driving mechanism drives the cutting mechanism to separate from the wire, the conveying mechanism is used to convey the peeled wire to the side away from the conveying mechanism inside the wire stripping device; the conveying mechanism can put the wire to be stripped into the wire stripping device for wire stripping. After the wire stripping is completed and the cut wire skin is separated from the wire, the wire is continuously pushed into the wire stripping device to perform the next operation on the wire after wire stripping;

[0053] A connecting component, provided on the base 1, and the connecting component is used to connect the wire conveyed by the conveying mechanism with an external wire;

[0054] The connecting assembly includes a winding mechanism, a clamping mechanism and a transmission mechanism. The winding mechanism and the clamping mechanism are respectively connected to the cutting mechanism through the transmission mechanism. When the conveying mechanism stops conveying the wire and the driving mechanism is still driving the cutting mechanism and the wire is in a state of separation, the transmission mechanism drives the clamping mechanism to clamp and fix the external wire to be connected. The winding mechanism winds the wire conveyed by the conveying mechanism onto the outside of the wire clamped by the clamping mechanism. By setting the transmission mechanism, the clamping mechanism and the winding mechanism, the external stripped wire can be clamped by the clamping mechanism, and then, under the action of the transmission mechanism, the winding mechanism is used to clamp the wire. The wire stripped by the stripping device is wound around the outer surface of the external wire to achieve the connection of the two wires. After the wire stripping is completed, the two wires can be automatically wound and connected, which simplifies the subsequent processing steps of the power transformer. There is no need to manually connect the two stripped wires. In the case of using some thicker wires in the power transformer, the difficulty of connecting the two wires is also increased. The connection of the two stripped wires is automatically completed, which saves manpower and prevents the sharp ends of the wires from causing injuries to workers when manually connecting the two stripped wires, thereby greatly improving the use effect.

[0055] In one embodiment of the present invention, the conveying mechanism includes two feed wheels 3 rotatably mounted on a gantry 2, which is fixed to a base 1. The feeding action of the wire is realized through the interval between the two feed wheels 3. When the wire needs to be stripped, the wire to be fed and stripped is first inserted into the wire stripping device through the gap between the two feed wheels 3 to a suitable depth, and then the insertion of the wire is stopped. At this time, the end of the wire is inserted into the wire stripping device, so that the next stripping operation can be carried out.

[0056] The two lifting plates 62 are respectively fixed with an upper connecting rod 6 and a lower connecting rod 63. A knife holder 65 is installed on the surface close to each other between the upper connecting rod 6 and the lower connecting rod 63 through a spring 1 64. A plurality of stripping knives 66 for stripping the outer skin of the wire are provided on the knife holder 65. The driving mechanism is connected to the screw rod 61. At this time, after the wire is plugged in, the driving mechanism is started to rotate the screw rod 61. At this time, the lifting plate 62 threadedly connected to the screw rod 61 will drive the upper connecting rod 6 and the lower connecting rod 63 to move. When the skin of the wire needs to be cut, the driving mechanism is controlled to make the upper connecting rod 6 and the lower connecting rod 63 approach each other, so that the stripping knives 66 on the knife holder 65 approach each other until the two halves of the stripping knives 66 conflict with each other. At this time, the skin of the wire is cut by the stripping knives 66.

[0057] It should be noted here that the stripping knife 66 is set to be consistent with the specification of the wire to be stripped. After the two stripping knives 66 are in contact with each other, the stripping knife 66 will just cut off the skin of the wire;

[0058] It should also be noted that multiple grooves adapted to the guide are provided on the surface of the feeding wheel 3. When feeding the wire, the wire is inserted into the wire stripping device through the grooves on the feeding wheel 3, and the same number of stripping knives 66 are provided on the tool holder 65, so that the skins of multiple wires can be cut off simultaneously;

[0059] Please refer to Figure 7 , after the skin of the wire is cut, the stripping knives 66 are just in a state of being in contact with each other at this time, and limit posts 67 are provided on both the upper connecting rod 6 and the lower connecting rod 63. After the stripping knives 66 are in contact with each other to cut off the skin of the wire, the limit post 67 of the upper connecting rod 6 abuts against the protruding position of the tool holder 65 on the lower connecting rod 63, and the limit post 67 on the lower connecting rod 63 abuts against the protruding position of the tool holder 65 on the upper connecting rod 6 at this time;

[0060] In another embodiment of the present invention, a cross plate 7 is fixedly provided on the surface of the housing of the slide rail 4. The peeling mechanism includes two drive shafts 52 rotatably provided on the cross plate 7, a first meshing tooth 53 provided on the outer surface of the drive shaft 52, and two racks 5 fixedly provided on the upper connecting rod 6 and meshing with the first meshing tooth 53. A first screw rod 51 is designed at the end of each of the two drive shafts 52. An internally threaded block 54 is threadedly provided on each of the two first screw rods 51, and a pressing plate 57 is installed on each of the two internally threaded blocks 54 through an elastic member; when the upper connecting rod 6 and the lower connecting rod 63 approach each other to cut the skin of the wire through the stripping knife 66, the rack 5 moves downward with the upper connecting rod 6, so that the drive shaft 52 rotates through the first meshing tooth 53, so that the first screw rod 51 rotates, and the two racks 5 are provided at positions opposite to the two first meshing teeth 53. In this way, when the upper connecting rod 6 moves, the two drive shafts 52 rotate in opposite directions. At this time, the internally threaded blocks 54 on the two first screw rods 51 are not limited, so they follow the two first screw rods 51 and rotate in the direction of the central position until the pressing plates 57 on the internally threaded blocks 54 on the two first screw rods 51 are in contact with each other, and the elastic member on the pressing plate 57 is deformed to the maximum. At this time, the two pressing plates 57 are in contact with each other. The elastic member can be a torsion spring;

[0061] It should be noted that when feeding the wire, the insertion depth of the wire should exceed the surface of the two pressure plates 57 close to the cutting mechanism side, so that after the two pressure plates 57 are against each other, the wire will be pressed in the middle to achieve the clamping of the wire. When the stripping knife 66 completes the cutting of the skin of the wire, the two clamping plates 810 have completed the clamping of the wire. Then it should be noted here that there is no need to turn off the driving mechanism, and continue to control the driving mechanism to make the upper connecting rod 6 and the lower connecting rod 63 close to each other. At this time, the limiting post 67 of the upper connecting rod 6 is against the raised position of the knife seat 65 on the lower connecting rod 63, and the limiting post 67 on the lower connecting rod 63 is against the raised position of the knife seat 65 on the upper connecting rod 6. When the rod 6 and the lower connecting rod 63 continue to approach each other, the two knife seats 65 and the stripping knife 66 cannot approach each other, but squeeze the spring 1 64 to compress and deform, so that the upper connecting rod 6 and the lower connecting rod 63 can still approach each other without damaging the stripping knife 66. At this time, due to the mutual squeezing of the two pressing plates 57, they form a limit with each other, so that the two internal thread blocks 54 cannot continue to rotate with the screw rod 1 51, but move on the screw rod 1 51, thereby driving the two pressing plates 57 to move, so that the cut wire skin is pulled out by moving the pressing plates 57, so that the wire skin is separated from the wire, and the wire with the cut skin can be automatically separated from the skin without manual operation, which is more convenient to use.

[0062] It should be noted that when the peeling is completed, the driving mechanism is controlled to make the screw rod 2 61 rotate in the opposite direction. At this time, the upper connecting rod 6 and the lower connecting rod 63 move away from each other, so that the two driving shafts 52 will drive the two screw rods 1 51 to rotate in opposite directions, and the internal thread block 54 and the pressure plate 57 move away from the center position. At this time, in order to allow the pressure plate 57 and the internal thread block 54 on the peeling mechanism to be able to return to their original positions when the screw rod 1 51 is reversed so as to facilitate the next separation of the cut epidermis, the peeling mechanism also includes two limit clamps 56 installed on the base 1 through the stand 55, and a slot is provided on the limit clamp 56 that is compatible with the end of the pressure plate 57, so that when the two After the pressure plate 57 rotates toward the position close to the center conductor and clamps the conductor, the pressure plate 57 is inserted into the groove of the corresponding limiting clamp 56. In this way, when the two pressure plates 57 are restrained against each other and move on the screw rod 1 51, the limiting clamp 56 and the stand 55 are pulled to move together until the skin is peeled off. When the two screw rods 1 51 are reversed, the two internal thread blocks 54 and the pressure plate 57 are not restricted due to the reverse rotation. They move with the screw rod 1 51 away from the center conductor position until the pressure plate 57 is clamped into the groove of the limiting clamp 56 on the other side. At this time, due to the limitation of the limiting clamp 56, it can no longer rotate with the screw rod 1 51, and thus moves in the opposite direction on the screw rod 1 51 until it returns to its original position.

[0063] When the wire is completely stripped, when the control driving mechanism makes the second screw rod 61 rotate in the reverse direction, the upper connecting rod 6 and the lower connecting rod 63 move away from each other. At this time, the lower connecting rod 63 moves downward. At this time, it is necessary to continue feeding the stripped wire and perform the next operation on the wire. In another embodiment of the present invention, the conveying mechanism further includes a first rack 36 fixedly arranged on the lower connecting rod 63, and a first gear 31 rotatably arranged on the gantry 2 and respectively connected to the two feeding wheels 3. A second gear 34 meshing with the first rack 36 is also rotatably arranged on the surface of the gantry 2 close to the first gear 31. A first protrusion 32 inserted into one of the first gears 31 is arranged on the second gear 34. Among them, a first latch 33 is rotatably arranged on the first protrusion 32 through a torsion spring. A first ratchet groove 35 is arranged in a circumferential array on the inner wall surface of the second gear 34, and the first latch 33 abuts against the surface of the first ratchet groove 35. Through the abutting first latch 33 and the first ratchet groove 35, the one-way power transmission action of the second gear 34 on the first gear 31 is realized; when the lower connecting rod 63 moves downward, the first rack 36 moves downward, and the first rack 36 meshes with the second gear 34, causing the second gear 34 to rotate, so that the two first gears 31 rotate through the second gear 34. And because the two first gears 31 mesh with each other, the rotation directions of the two first gears 31 are opposite. At this time, the two feeding wheels 3 rotate in opposite directions. And because the irregular protrusion positions are arranged on the feeding wheels 3, when the feeding wheels 3 rotate, the protrusions will abut against the surface of the wire, so that the wire is further conveyed into the wire stripping device through the friction with the surface of the wire;

[0064] It should be noted that when the upper connecting rod 6 and the lower connecting rod 63 approach each other to cut the wire, the first rack 36 moves upward. Due to the arrangement of the first ratchet groove 35 and the first latch 33, the first ratchet groove 35 and the first latch 33 slip, and at this time the second gear 34 cannot drive the first gear 3 rotate. That is to say, when the first connecting rod and the second connecting rod approach each other, the two feeding wheels 3 do not rotate. Only when the cutting is completed and the epidermis is separated from the wire through the peeling mechanism, and when the upper connecting rod 6 and the lower connecting rod 63 are moved away from each other through the driving mechanism, will the two feeding wheels 3 rotate, so that during wire stripping, there will be no interference with wire stripping, but after wire stripping is completed, secondary feeding is performed;

[0065] In yet another embodiment of the present invention, the clamping mechanism includes a mounting plate 819 disposed on the base 1 through a frame 10. A plurality of sets of positive and negative lead screws 822 are rotatably disposed within the mounting plate 819. Two driving plates 821 are threadedly disposed on each set of positive and negative lead screws 822. Clamping plates 810 slidably disposed on the surface of the mounting plate 819 are provided on both driving plates 821, and the two clamping plates 810 are connected to each other by a second spring 820. The transmission mechanism is disposed between the end of one of the positive and negative lead screws 822 at the end and the lower connecting rod 63. When the lower connecting rod 63 moves away from the wire, the positive and negative lead screws 822 are rotated through the transmission mechanism to achieve the action of the two clamping plates 810 approaching each other;

[0066] Before the wire is stripped by the cutting mechanism, the externally stripped wire is inserted into the gap between the two clamping plates 810. When the upper connecting rod 6 and the lower connecting rod 63 approach each other, the two clamping plates 810 clamp the end of the externally stripped wire through the transmission mechanism;

[0067] When the wire in the wire stripping device is completely stripped and conveyed by the conveying mechanism, the winding mechanism includes turntables 813 that are the same in number as the positive and negative lead screws 822 and are rotatably disposed on the mounting plate 819 through telescopic rods 811. Meshing teeth three 814 are provided on the surface of each turntable 813, and the meshing teeth three 814 on adjacent two turntables 813 mesh with each other. A winding seat 812 is fixedly provided at an eccentric position on the surface of each turntable 813. The meshing teeth three 814 on the surface of the turntable 813 at one end are connected to the lower connecting rod 63 through the transmission mechanism. When the lower connecting rod 63 moves away from the wire, the plurality of sets of turntables 813 are rotated through the transmission mechanism. When the clamping mechanism clamps the externally stripped wire through the transmission mechanism and the two wires are connected through the winding mechanism, the first rack 36 is separated from the second gear 34. At this time, the wire stops feeding, and the two feeding wheels 3 are in the initial state at this time to facilitate the next insertion of the wire;

[0068] It should be noted here that when the feeding wheel 3 stops feeding, that is, when the wire stops moving, the upper connecting rod 6 and the lower connecting rod 63 are still in a state of moving away from each other. At this time, the wire is fed into the gap between the winding seat 812 and the externally inserted wire whose stripping has been completed. At this time, the external wire is locked by the clamping mechanism, and then the turntable 813 is rotated through the transmission mechanism, so that the winding seat 812 at the eccentric position rotates. When the winding seat 812 rotates, it touches the wire and presses the wire against the outer surface of the external wire. As the winding seat 812 rotates, the winding seat 812 winds the wire on the outer side surface of the external wire, which can connect the two wires after the wire stripping is completed, without subsequent manual operation. For some wires with a relatively large cross-sectional area, it greatly reduces the inconvenience caused by manual winding. And the number of turntables 813 is set to be the same as the number of stripping knives 66. It can not only strip multiple wires, but also automatically connect multiple groups of wires, simplifying the process of processing the power transformer, and having a better convenient effect;

[0069] It should also be noted that since the meshing teeth three 814 on adjacent turntables 813 mesh with each other, the rotation directions of adjacent two turntables 813 are opposite, so that when the winding seats 812 on adjacent two turntables 813 wind the wires, the winding directions are opposite, which can meet the use for different power transformer windings, etc. It should be noted that in order to achieve this effect, the positions of adjacent winding seats 812 on the turntable 813 are opposite, offset by 180 degrees;

[0070] In another embodiment of the present invention, a chute 8 for slidingly installing a slider 81 is provided on the base 1. The transmission mechanism includes one end of a rotating plate 82 rotatably provided on the lower connecting rod 63, and the other end of the rotating plate 82 is rotatably provided with the slider 81. A gear three 84 and a gear four 88 are rotatably provided on the base 1. Among them, the axis of the gear three 84 is vertically upward, and the axis of the gear three 84 is arranged in the vertical direction of the movement direction of the slider 81. A rack two 86 and meshing teeth two 87 are provided on the slider 81. When the lower connecting rod 63 moves away from the wire, after the gear two 34 meshes with the gear three 84, the meshing teeth two 87 mesh with the gear four 88, and the gear four 88 is installed with a synchronous belt one 83 through a synchronous pulley at the end of a set of positive and negative lead screws 822 at one end;

[0071] A connecting shaft 85 is fixedly provided on the gear three 84, and a driving wheel 816 is installed on the top of the connecting shaft 85 through a moving part. The driving wheel 816 is rotatably set on the inner wall surface of the gear five 815, and a ratchet groove 2 828 is clamped on the inner wall of the gear five 815. The end of the driving wheel 816 extending into the gear five 815 is installed with a clamping block 2 827 that is against the surface of the ratchet groove 2 828 through a torsion spring. The gear five 815 is meshed with the meshing tooth three 814 on one of the turntables 813; when the upper connecting rod 6 and the lower connecting rod 63 move away from each other, the lower connecting rod 63 presses the slider 81 through the rotating rod, so that the slider 81 moves away from the lower connecting rod 63. The restriction will cause the meshing tooth 2 87 on the slider 81 to mesh with the gear four 88, and the forward and reverse wires are meshed through the synchronous belt 1 83. The lever 822 rotates, so that the two clamping plates 810 approach each other, thereby clamping the external wire. At this time, the spring 2 820 is compressed and deformed. Then, when the lower connecting rod 63 continues to move downward, the rack 2 86 meshes with the gear 3 84, and the gear 5 815 is rotated by the connecting shaft 85 via the moving part, thereby rotating the multiple groups of turntables 813 through the meshing gear 3 814. After the wire surface is stripped, after the upper connecting rod 6 and the lower connecting rod 63 are separated, and after the conveying mechanism stops conveying the wire, the two clamping plates 810 on the clamping mechanism are clamped to the end of the external wire through the transmission mechanism. After the clamping is completed, the turntable 813 is rotated to wind the wire stripped by the stripping device onto the surface of the external wire through the winding seat 812.

[0072] The second ratchet groove 828 and the second clamping block 827 are provided so that when the upper connecting rod 6 and the lower connecting rod 63 approach each other for the next wire stripping, the rotating plate 82 drives the slider 81 to move in the reverse direction, and the gear 815 does not rotate, so that the winding seat 812 on the rotating disk 813 does not rotate, thereby preventing the winding seat 812 from reversing and interfering with the wire of the wire stripping device along the feeding position;

[0073] In the above-mentioned winding, after the wire stripping device strips the wire and the wire is wound around the external wire, it can only be wound one circle, or even less than one circle. In order to further improve the winding effect, in another embodiment of the present invention, the moving part includes a movable ring 823 slidably arranged on the connecting shaft 85, and an insertion rod 824 arranged on the end of the connecting shaft 85 and passing through the driving wheel 816 and the gear five 815, wherein the driving wheel 816 is provided with a card slot 826, and the outer peripheral side of the insertion rod 824 is fixedly provided with a limit block 825 embedded in the card slot 826, and the mounting plate 819 is fixedly provided with a support frame 9 slidably connected to the lifting block 817, and a cam 818 is fixedly provided on the end of the forward and reverse screw 822 at one end, and the cam 818 is abutted against the bottom surface of the lifting block 817;

[0074] The moving part further includes multiple groups of clamping rings 829 respectively arranged on the outer peripheral sides of the fifth gear 815 and the turntable 813. The multiple groups of clamping rings 829 are arranged staggeredly, and the protruding positions of adjacent clamping rings 829 are clamped within the recessed positions of adjacent clamping rings 829;

[0075] When the positive and reverse lead screw 822 rotates through the meshing of the fourth gear 88 and the third meshing tooth 814 to clamp an external wire by the clamping plate 810, the second spring 820 is compressed and deformed. When the third gear 84 meshes with the second rack 86, the fourth gear 88 and the third meshing tooth 814 will not separate. At this time, the second spring 820 is continuously compressed, and the positive and reverse lead screw 822 is still in a rotating state, so that the cam 818 on one end of the positive and reverse lead screw 822 is also in a rotating state. At this time, the winding seat 812 winds the wire completed by the wire stripping device around the external wire. When the cam 818 rotates, it separates from the lifting block 817. Under the action of gravity, the fifth gear 815 and the driving wheel 816 slide downward. Since the multiple groups of clamping rings 829 are arranged staggeredly, the protruding positions of adjacent clamping rings 829 are clamped within the recessed positions of adjacent clamping rings 829. In this way, multiple turntables 813 will all move downward, so that the height of the winding seat 812 decreases. Since the end of the winding seat 812 is set to be larger than the diameter of the wire, when the winding seat 812 descends, it will hook the wire and descend together, so as to wind the wire downward to the lower part of the external guide until it descends to the lowest point. At this time, the lower connecting rod 63 moves downward to the maximum position, and the driving mechanism is closed. When winding the wire, not only can it be wound for one circle, but it can be wound for multiple circles, further improving the winding effect of the wire, and greatly reducing the difficulty of spiral winding connection of the wire in the processing of the power transformer, with excellent use effects;

[0076] In order to improve this effect, cams 818 are arranged at the ends of the two square lead screws at both ends, and springs can be installed in the telescopic rod 81, so that when the cam 818 rotates, multiple turntables 813 can descend or ascend stably;

[0077] In order to facilitate the removal of the wire after connecting two wires, multiple turntables 813 are provided with gaps for the wire to break away after connection. Elastic plates 830 are arranged at the gap positions of the turntables 813 through torsion springs. Teeth adapted to the third meshing teeth 814 are arranged on the outer peripheral surface of the elastic plates 830. In this way, the wire can be directly pulled outwards to remove the wire. The teeth arranged on the elastic plates 830 will not affect the rotation between the rotating plates 82. It should be noted that the arrangement of the teeth needs to avoid the rotation position of the elastic plates 830;

[0078] It should also be noted that in order to further improve the effect of winding the wire completed by the wire stripping device around the external wire, such as Figure 11As shown in the figure, the clamping mechanism can be set into two groups. Another clamping mechanism is arranged above the winding mechanism. A through hole for the entry of external wires is provided on the mounting plate 819 between the clamping plates 810 of the clamping mechanism located above. The ends of the positive and negative lead screws 822 on the two clamping mechanisms are installed with a second synchronous belt 89 through synchronous pulleys. In this way, the two clamping mechanisms provided clamp the outside of the external wires on both sides of the winding mechanism at the same time, so that the external wires are fixed, preventing the external wires from shaking and affecting the winding effect when the wires are wound around the external wires.

[0079] Only some exemplary embodiments of the present invention have been described above by way of illustration. Without doubt, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A wire stripping device for processing a power transformer, comprising a base (1) and a slide rail (4) arranged on the base (1), characterized in that: The wire stripping device for processing a power transformer further comprises: A cutting mechanism for cutting the outer skin of the wire is arranged on the slide rail (4) through a driving mechanism, and the driving mechanism has two stroke actions: a first stroke action: driving the cutting mechanism to cut the outer skin of the wire; a second stroke action: driving the cutting mechanism to separate from the cut wire; a peeling mechanism, which is arranged on the base (1) and connected to the cutting mechanism, and after the cutting mechanism cuts off the outer skin of the wire, the peeling mechanism separates the cut outer skin of the wire from the wire core; A conveying mechanism is provided on the base (1) and connected to the cutting mechanism. When the cutting mechanism is driven to separate from the wire by the driving mechanism, the conveying mechanism is used to convey the stripped wire to the inside of the wire stripping device away from the conveying mechanism. A connecting assembly is provided on the base (1), and is used to connect the wire transported by the transport mechanism with an external wire; The connecting assembly includes a winding mechanism, a clamping mechanism and a transmission mechanism. The winding mechanism and the clamping mechanism are respectively connected to the cutting mechanism through the transmission mechanism. When the conveying mechanism stops conveying the wire and the driving mechanism is still driving the cutting mechanism and the wire is in a state of separation, the transmission mechanism drives the clamping mechanism to clamp and fix the external wire to be connected, and then the winding mechanism winds the wire conveyed by the conveying mechanism onto the outside of the wire clamped by the clamping mechanism.

2. A wire stripping device for processing a power transformer according to claim 1, characterized in that: The cutting mechanism includes a screw rod (61) rotatably arranged on the base (1) and two lifting plates (62) with threads installed on the screw rod (61) and the ends of which are slidably engaged in the slide rail (4). The two lifting plates (62) are respectively fixed with an upper connecting rod (6) and a lower connecting rod (63). A knife seat (65) is installed on the surface close to each other between the upper connecting rod (6) and the lower connecting rod (63) through a spring (64), and a plurality of stripping knives (66) for stripping the outer skin of the wire are provided on the knife seat (65). The driving mechanism is connected to the screw rod (61), and the driving mechanism is used to drive the screw rod (61) to rotate.

3. A wire stripping device for processing a power transformer according to claim 2, characterized in that: A transverse plate (7) is fixedly provided on the shell surface of the slide rail (4), and the peeling mechanism includes two groups of drive shafts (52) rotatably provided on the transverse plate (7), meshing teeth (53) provided on the outer surface of the drive shaft (52), and two groups of racks (5) fixedly provided on the upper connecting rod (6) and meshing with the meshing teeth (53). A screw rod (51) is designed on the end of each of the two drive shafts (52), and an internal thread block (54) is threadedly provided on each of the two screw rods (51), and a pressure plate (57) is installed on each of the two internal thread blocks (54) through an elastic member.

4. A wire stripping device for processing a power transformer according to claim 3, characterized in that: The peeling mechanism further comprises two limiting clamping blocks (56) mounted on the base (1) via a stand (55), and a notch adapted to the end of the pressing plate (57) is provided on the limiting clamping blocks (56).

5. A wire stripping device for processing a power transformer according to claim 4, characterized in that: The conveying mechanism comprises two feed wheels (3) rotatably arranged on a door frame (2), the door frame (2) being fixed on a base (1), and the feeding action of the wire is realized through the interval between the two feed wheels (3); The conveying mechanism also includes a rack (36) fixed on the lower connecting rod (63), and a gear (31) rotatably arranged on the door frame (2) and respectively connected to the two feed wheels (3), and a gear (34) rotatably arranged on the surface of the door frame (2) close to the gear (31) and meshing with the rack (36), and a protrusion (32) inserted into the interior of one of the gears (31) is arranged on the gear (34), wherein a clamping block (33) is rotatably arranged on the protrusion (32) by a torsion spring, and a ratchet groove (35) is provided on the inner wall surface of the gear (34) in a circumferential array, and the clamping block (33) abuts against the surface of the ratchet groove (35), and the one-way power transmission action of the gear (34) to the gear (31) is realized by the clamping block (33) and the ratchet groove (35) abutting against each other.

6. A wire stripping device for processing a power transformer according to claim 5, characterized in that: The clamping mechanism includes a mounting plate (819) arranged on the base (1) through a frame (10), and a plurality of groups of forward and reverse screws (822) are rotatably arranged in the mounting plate (819), and two driving plates (821) are threadedly arranged on each group of the forward and reverse screws (822), and the two driving plates (821) are each provided with a clamping plate (810) slidably arranged on the surface of the mounting plate (819), and the two clamping plates (810) are connected by a spring (820), and the transmission mechanism is arranged between the end of one of the forward and reverse screws (822) at the end and the lower connecting rod (63). When the lower connecting rod (63) moves away from the wire, the forward and reverse screws (822) are rotated by the transmission mechanism, so that the two clamping plates (810) move closer to each other.

7. A wire stripping device for processing a power transformer according to claim 6, characterized in that: The winding mechanism includes a number of turntables (813) equal to the number of the forward and reverse lead screws (822) and rotatably arranged on a mounting plate (819) via a telescopic rod (811). The surface of each turntable (813) is provided with three meshing teeth (814), and the meshing teeth (814) on two adjacent turntables (813) are meshed with each other. A winding seat (812) is fixedly provided at an eccentric position on the surface of each turntable (813). The meshing teeth (814) on the surface of the turntable (813) at one end are connected to the lower connecting rod (63) via a transmission mechanism. When the lower connecting rod (63) moves away from the wire, the multiple groups of turntables (813) are rotated via the transmission mechanism.

8. The wire stripping device for processing a power transformer according to claim 7, characterized in that: The base (1) is provided with a slide groove (8) on which a slider (81) is slidably mounted. The transmission mechanism includes one end of a rotating plate (82) rotatably mounted on the lower connecting rod (63), and the other end of the rotating plate (82) is rotatably mounted with the slider (81). Gear three (84) and gear four (88) are rotatably mounted on the base (1), wherein the axis of gear three (84) is vertically upward, and the axis of gear three (84) is arranged in a direction perpendicular to the movement direction of the slider (81). Rack two (86) and meshing tooth two (87) are arranged on the slider (81). When the lower connecting rod (63) moves away from the wire, after gear two (34) meshes with gear three (84), the meshing tooth two (87) meshes with gear four (88). The gear four (88) and the end of a group of forward and reverse screws (822) on one end are mounted with a synchronous belt one (83) through a synchronous wheel. A connecting shaft (85) is fixedly provided on the gear three (84), and a driving wheel (816) is installed on the top of the connecting shaft (85) through a moving part. The driving wheel (816) is rotatably provided on the inner wall surface of the gear five (815), and a ratchet groove two (828) is provided on the inner wall of the gear five (815). The end of the driving wheel (816) extending into the gear five (815) is provided with a clamping block two (827) which abuts against the surface of the ratchet groove two (828) through a torsion spring. The gear five (815) is meshed with the meshing tooth three (814) on one of the rotating disks (813).

9. A wire stripping device for processing a power transformer according to claim 8, characterized in that: The moving part includes a movable ring (823) slidably arranged on the connecting shaft (85), an insert rod (824) arranged on the end of the connecting shaft (85) and passing through the driving wheel (816) and the gear five (815), wherein a slot (826) is provided on the driving wheel (816), and a limit block (825) is fixedly provided on the outer peripheral side of the insert rod (824) and is embedded in the slot (826). A support frame (9) slidably connected to the lifting block (817) is fixedly provided on the mounting plate (819), and a cam (818) is fixedly provided on the end of the forward and reverse screw (822) at one end, and the cam (818) is abutted against the bottom surface of the lifting block (817); The moving part further comprises a plurality of groups of snap rings (829) respectively arranged on the outer peripheral sides of the gear five (815) and the turntable (813), wherein the plurality of groups of snap rings (829) are arranged in a staggered manner, and the protruding positions of adjacent snap rings (829) are snapped into the recessed positions of adjacent snap rings (829).

10. A wire stripping device for processing a power transformer according to claim 9, characterized in that: A plurality of groups of the rotating disks (813) are provided with notches for detaching the wires after connection. An elastic plate (830) is provided at the notch position of the rotating disk (813) via a torsion spring. Teeth that match the meshing teeth (814) are provided on the outer peripheral surface of the elastic plate (830).

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