A copper foil winding auxiliary device and method for producing transformers of various specifications

Abstract

The present invention relates to copper foil winding technology of different sizes in transformer production, specifically a copper foil winding auxiliary device and winding method for producing transformers of multiple specifications. The problem of low production efficiency and high processing cost of manually winding copper foil on the transformer during the production process of the transformer is solved. The copper foil winding auxiliary device includes a base plate fixed on a workbench; a pair of vertical plates parallel to each other are installed on the left and right sides of the front of the base plate, and a limit plate is installed in the middle of the rear of the base plate; a cylinder is horizontally installed at the front end of the limit plate, and a front baffle is connected to the front end of the movable rod of the cylinder, and a rubber roller is installed at the front end of the front baffle, and a pair of vertical plates are respectively installed with a shaft sleeve at the rear end, and a guide rail running forward and backward is movably provided through the shaft sleeve; the front ends of the guide rails pass through the holes on the vertical plates respectively and are connected to the front baffle, and the end of the guide rails is connected to a rear baffle located behind the limit plate.

Description

Technical Field

[0001] The invention relates to a copper foil winding technology of different sizes in transformer production, and in particular to a copper foil winding auxiliary device and a winding method for producing transformers of multiple specifications. Background Art

[0002] In the transformer, copper foil is used as a shielding layer, that is, after the primary coil is wound, it is wrapped with copper foil and then wound around the secondary coil, and a head of the copper foil is led out to ground to play a shielding role. The copper foil must be wrapped flat and straight, and cannot be biased to one side. The copper foil winding process initially used manual straightening of the copper foil, and the copper foil winding package was put on the rotating shaft of the electric winding machine, and the transformer was driven by the rotation of the rotating shaft to carry out copper foil winding. Due to the high speed of the electric winding machine, using this method, workers need to spend a lot of effort to tighten the copper foil, and it is easy to cause the copper foil to deviate to one side when manually pulling the copper foil. The copper foil of different sizes and specifications requires different strengths, which is difficult to control. If the strength is not enough, the copper foil will not be tightly wound. Therefore, the labor intensity of workers using this method is high and the product quality is not high. In order to achieve a satisfactory and ideal winding effect, it is necessary to seek a better winding method to solve the problems of unstable winding quality and low efficiency. In addition, since the transformer model involves copper foils of various sizes and specifications, a copper foil winding auxiliary device and a corresponding winding method for producing transformers of multiple specifications are required. Summary of the invention

[0003] The present invention aims to solve the technical problems of low production efficiency and high processing cost in manually winding copper foil on a transformer during the production process of the transformer. An auxiliary device and a winding method are provided, which can clamp and straighten the copper foil and cooperate with an electric winding machine to wind the copper foil onto the transformer.

[0004] The copper foil winding auxiliary device for producing transformers of various specifications described in the present invention is implemented by the following scheme: it includes a base plate fixed on a workbench; a pair of vertical plates parallel to each other are installed on the left and right sides of the front of the base plate, and a limit plate is installed on the rear middle part of the base plate; a cylinder connected to an external air source is horizontally installed at the front end of the limit plate, and the front end of the movable rod of the cylinder is connected to a front baffle located in front of the pair of vertical plates, and a rotatable rubber roller is installed at the front end of the front baffle, and the rubber roller is connected to the front baffle through a detachable connecting piece; the rotating shaft of the rubber roller is horizontal and perpendicular to the axial direction of the movable rod of the cylinder; a shaft sleeve is respectively installed at the rear end of a pair of vertical plates, and a guide rail running forward and backward is movably provided through the shaft sleeve; the front ends of the two guide rails respectively pass through the holes on the vertical plates where they are located and are connected to the front baffle, and the ends of the two guide rails are simultaneously connected to a rear baffle located behind the limit plate.

[0005] During the production of transformers, when performing the copper foil winding process, first determine the size of the copper foil and replace the rubber roller of the corresponding size on the copper foil winding auxiliary device. After the copper foil winding auxiliary device is fixed, start the electric winding machine. When the electric winding machine shaft rotates, the transformer is put on the shaft, and the shaft acts as a driving wheel to drive the rubber roller to rotate. The copper foil is sandwiched between the transformer and the rubber roller, and the copper foil is automatically wound.

[0006] Furthermore, a rubber roller connecting plate is installed on the front end surface of the front baffle, and a pair of rubber roller clamping plates spaced apart from each other are fixedly installed on the front end of the rubber roller connecting plate. The rubber roller is rotatably connected to the rubber roller clamping plates via a rotating shaft located at the front ends of the pair of rubber roller clamping plates; the rubber roller connecting plate and the front baffle are detachably connected, and the rubber roller connecting plate and the rubber roller clamping plate constitute a detachable connecting piece.

[0007] A through slot extending left and right is provided on the front baffle at the connection position between the cylinder movable rod and the front baffle, and the rubber roller connecting plate is detachably connected to the front baffle by a pair of mounting screws passing through the two through slots. The positions of the mounting screws can be adjusted horizontally through the two through slots, thereby adapting to the connection of rubber rollers of different specifications and their supporting structures, so as to adapt to transformers of different specifications.

[0008] The present invention discloses a copper foil winding method for producing transformers of various specifications, comprising the following steps: (1) selecting a rubber roller of appropriate specifications according to the size specifications of the copper foil, and installing the rubber roller on a front baffle of a copper foil winding auxiliary device;

[0009] (2) Put the transformer with copper foil fixed on it on the electric winding machine. The copper foil is clamped between the transformer and the rubber roller. Then open the air duct connected to the cylinder and turn on the pneumatic switch. The rubber roller will move to the shaft of the electric winding machine through the cylinder, and apply a certain pressure to the transformer on the shaft to ensure that the copper foil is clamped. Then operate the electric winding machine to rotate and automatically wind the copper foil on the transformer, completing the copper foil winding process.

[0010] (3) After winding is completed, remove the wound transformer and place a new transformer to continue winding. At the same time, select a rubber roller of appropriate size.

[0011] By using the device of the present invention to replace manual operation, automatic winding of copper foil can be achieved. Using the device for copper foil winding can not only realize the production of transformers of various specifications, but also improve production efficiency and product quality, reduce processing costs, and make the position of copper foil normalized. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram of the three-dimensional structure of the auxiliary device of the present invention.

[0013] Figure 2 Schematic diagram of the partial structure of the rubber roller installation part of the front baffle (viewed from the back to the front).

[0014] Figure 3 A schematic side view of the auxiliary device of the present invention.

[0015] Figure 4 A schematic diagram of the structure of the auxiliary device according to the present invention from a top view.

[0016] 1. Bottom plate, 2. Limit plate, 3. Vertical plate (quantity: 2), 4. Front baffle, 5. Rear baffle, 6. Bushing (quantity: 2), 7. Guide rail, (quantity: 2), 8. Rubber roller clamping plate (quantity: 2), 9. Rubber roller connecting plate, 10. Rubber roller, 11. Cylinder, 12. Through groove, 13. Mounting screw, 14. Incision. DETAILED DESCRIPTION

[0017] Example 1

[0018] like Figure 1-4 As shown, a copper foil winding auxiliary device for producing transformers of various specifications comprises a bottom plate 1 fixed horizontally on a workbench; a pair of vertical plates 3 parallel to each other are installed on the left and right sides of the front of the bottom plate 1, and a limit plate 2 is vertically installed in the middle of the rear of the bottom plate 1; a cylinder 11 connected to an external air source is horizontally installed at the front end of the limit plate 2, and a front baffle 4 located in front of the pair of vertical plates 3 is connected to the front end of the movable rod of the cylinder 11, and a rotatable rubber roller 10 is installed at the front end of the front baffle 4, and the rubber roller 10 is installed at the front end of the rubber roller 10. 0 is connected to the front baffle 4 through a detachable connector; the rotating shaft of the rubber roller 10 is horizontal and perpendicular to the axis of the movable rod of the cylinder 11; a sleeve 6 is installed at the rear end of a pair of vertical plates 3, and a guide rail 7 running forward and backward is movably provided through the sleeve 6; the front ends of the two guide rails 7 pass through the holes on the vertical plates 3 and are connected to the front baffle 4, and the ends of the two guide rails 7 are simultaneously connected to a rear baffle 5 located behind the limit plate 2; the end of the movable rod of the cylinder extends backward from the hole on the limit plate 2 and is fixedly connected to the rear baffle 5. The front baffle 4 is located in front of the vertical plate 3 and is limited by the vertical plate; the rear baffle 5 is limited by the limit plate 2 to control the stroke and can only move to the limit plate 2. The guide rail 7 plays a guiding and positioning role. The front and rear ends of the movable rod of the cylinder are respectively connected to the front and rear baffles to ensure smooth operation. The bottom plate is fixed to the workbench by screws located at the four corners, and the front baffle, the rear baffle, and the guide rails are connected and fixed by screws to form a moving mechanism to control the movement of the rubber roller. The air inlet and exhaust ports on the cylinder end cover are connected to the air duct through a switching power supply, converting the pressure energy of the compressed air into mechanical energy, driving the rubber roller to perform linear reciprocating motion.

[0019] Example 2

[0020] A rubber roller connecting plate 9 is installed on the front end surface of the front baffle 4, and a pair of rubber roller clamping plates 8 spaced from each other are fixedly installed at the front end of the rubber roller connecting plate 9. The rubber roller 10 is rotatably connected to the rubber roller clamping plates 8 through a rotating shaft located at the front end of the pair of rubber roller clamping plates 8; the rubber roller connecting plate 9 and the front baffle are detachably connected, and the rubber roller connecting plate and the rubber roller clamping plate constitute a detachable connecting member; the front baffle 4 is provided with a left-right through groove 12 (such as Figure 2 As shown in the figure, the rubber roller connecting plate is detachably connected to the front baffle plate 4 by a pair of mounting screws 13 passing through two through slots 12. The rubber roller 10 and the pair of rubber roller clamping plates 8 are clearance-matched, and the roller width is slightly smaller than the pair of rubber roller clamping plates, so that the rubber roller is very stable when rotating, which can ensure the quality of copper foil winding.

[0021] Example 3

[0022] A pair of vertical plates 3 are provided with holes extending forward and backward for mounting the shaft sleeve 6; a cut 14 connected to the top of the hole is sawn downward from the top of the vertical plate, and the cut 14 is connected by screws to clamp the shaft sleeve 6.

[0023] Drill holes in the vertical plate, saw the end faces to the hole positions and install the bushings. Use screws to connect the sawn end faces and clamp the bushings to protect the guide rails and extend their service life.

[0024] The design of the rubber roller installation part on the front baffle of the device is an innovation. The innovation lies in that when the front baffle and the rubber roller connecting plate are connected by mounting screws, two through slots are processed on the front baffle to replace rubber rollers of different sizes to realize the processing of transformers of different specifications.

[0025] During the transformer production process, the height of the electric winding machine shaft is fixed during the copper foil winding process, so the position and size of the rubber roller can also be determined. Then, the rubber roller is replaced according to the copper foil size specifications to carry out copper foil winding.

[0026] When the copper foil winding auxiliary device is working, the transformer with copper foil fixed on it (one end of the copper foil is fixed on the transformer by spot welding) is first put on the electric winding machine, and the copper foil is clamped between the transformer and the rubber roller. Then the operator opens the air duct and turns on the pneumatic switch, and the rubber roller will move to the electric winding machine shaft through the cylinder, exerting a certain pressure on the transformer on the shaft to ensure that the copper foil is clamped. Then the operator operates the electric winding machine to automatically wind the copper foil on the transformer, completing the copper foil winding process. After winding, the operator removes the wound transformer and puts a new transformer on for winding.

[0027] Rubber rollers of different specifications are pre-connected with the rubber roller clamping plate and the rubber roller connecting plate. When installing or replacing, the rubber roller connecting plate can be quickly connected and replaced by installing screws passing through the transverse grooves, thereby realizing the installation and disassembly of rubber rollers of different specifications and the front baffle.

Claims

The cam is provided with a plurality of support plates, and the support plates are provided with a plurality of support plates respectively. A rubber roller connecting plate is installed on the front end surface of the plate, and a pair of rubber roller clamping plates spaced apart from each other are fixedly installed on the front end of the rubber roller connecting plate, and the rubber roller is rotatably connected to the rubber roller clamping plate through a rotating shaft located between the front ends of the pair of rubber roller clamping plates; the rubber roller connecting plate and the front baffle are detachably connected, and the rubber roller connecting plate and the rubber roller clamping plate constitute a detachable connecting piece; a left-right through groove is opened on the front baffle on both sides of the connection position between the cylinder movable rod and the front baffle, and the rubber roller connecting plate is detachably connected to the front baffle by a pair of mounting screws passing through the two through grooves; a clearance fit is adopted between the rubber roller and the pair of rubber roller clamping plates; a pair of vertical plates are provided with holes running forward and backward for installing shaft sleeves; a cutout connected to the top of the hole is sawed from the top to the bottom of the vertical plate, and the cutout is connected by screws to clamp the shaft sleeve; the end of the movable rod of the cylinder extends backward from the hole on the limit plate and is fixedly connected to the rear baffle; It is characterized in that The method comprises the following steps: (1) selecting a rubber roller of appropriate specifications according to the size specifications of the copper foil, and installing the rubber roller on a front baffle of a copper foil winding auxiliary device for producing transformers of various specifications; (2) Put the transformer with copper foil fixed on it on the electric winding machine. The copper foil is clamped between the transformer and the rubber roller. Then open the air duct connected to the cylinder and turn on the pneumatic switch. The rubber roller will move to the shaft of the electric winding machine through the cylinder, and apply a certain pressure to the transformer on the shaft to ensure that the copper foil is clamped. Then operate the electric winding machine to rotate and automatically wind the copper foil on the transformer, completing the copper foil winding process. (3) After winding is completed, remove the wound transformer and place a new transformer to continue winding. At the same time, select a rubber roller of appropriate size.

2. A copper foil winding method for producing transformers of various specifications as claimed in claim 1, characterized in that: Rubber rollers of different specifications are pre-connected with the rubber roller clamping plate and the rubber roller connecting plate. When installing or replacing, the rubber roller connecting plate can be quickly connected and disassembled by installing screws passing through the through slots, thereby realizing the installation and disassembly of rubber rollers of different specifications and the front baffle.

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