Binding device for shielding net of mutual inductor

Abstract

The invention discloses a wrapping device for a shielding net of a mutual inductor, and belongs to the technical field of manufacturing of electronic mutual inductors. Aiming at the problems that traditional manual binding is low in efficiency and inaccurate in layer number control, the pneumatic driving and automatic counting technology is adopted, and the device comprises an air source, a foot switch, a pneumatic motor, a rotor blade, an elastic rubber sleeve and other core assemblies. The pneumatic motor drives the rotor blades to rotate through compressed air, and the shielding net is driven to achieve automatic winding of the insulation crepe paper. The elastic rubber sleeve can adapt to shielding nets with different diameters, so that the universality is improved; the paper guide groove standardizes the paper path and prevents deviation; and the counter accurately records the number of binding layers through magnetic induction, so that the process consistency is ensured. Stepless speed regulation is achieved through the regulating valve, starting and stopping are controlled in combination with the pedal switch, the labor intensity of workers is remarkably reduced, and the production efficiency and the product quality are improved. The device is compact in structure, easy and convenient to operate and suitable for mass production scenes of electronic transformers, and has high industrial practical value.

Description

Technical Field

[0001] This disclosure belongs to the technical field of auxiliary tooling in the manufacturing process of electronic transformers, and particularly relates to a transformer shielding net bandaging device. Background Art

[0002] In the production and manufacturing process of electronic transformer products, a combined shielding net is required. This combined shielding net is formed by bandaging and welding three shielding nets, and its function is to shield tip discharge and avoid unqualified partial discharge of products caused by uneven electric fields. Currently, the work of bandaging the shielding net is mainly carried out by workers holding insulating crepe paper and bandaging it layer by layer according to the process requirements. Workers count the number of bandaging layers mentally. With the increase in product orders, the daily workload of workers is very large, and they cannot complete the bandaging task. Moreover, the situation of over-bandaging or under-bandaging often occurs, seriously affecting production efficiency and product quality. Summary of the Invention

[0003] The technical problem solved by this disclosure is to provide a transformer shielding net bandaging device that can directly wind insulating crepe paper onto the shielding net according to the number of bandaging layers required by the process, reducing labor time and labor intensity, not generating heat during long-term operation, having a simple structure, small volume, and light weight, and improving production efficiency and product quality.

[0004] To achieve the above object, this disclosure adopts the following technical solution: A transformer shielding net bandaging device, where the air source is connected to a foot switch. An air inlet pipe and an air outlet pipe are connected to the foot switch. The air inlet pipe and the air outlet pipe are fixed to the air inlet and air outlet of a pneumatic motor through mounting holes on the side wall. A regulating valve is installed on each of the air inlet and air outlet, and the regulating valve is used to adjust the input and output amounts of gas. A bracket is provided below the output end of the pneumatic motor. A rotor blade is installed on the output shaft of the pneumatic motor. A magnet is provided on the outer wall of the rotor blade near one end of the pneumatic motor, and the magnet is used for the induction of a detector. An elastic rubber sleeve is provided at the end of the rotor blade away from the pneumatic motor. The elastic rubber sleeve covers half of the rotor blade, and the shielding net is sleeved on the elastic rubber sleeve. A counter is provided on the side wall, and the counter senses the number of rotations of the rotor blade through the detector. A paper guiding groove is provided on the side wall of the device for guiding the insulating crepe paper to be bandaged in layers along a preset path.

[0005] Preferably, a hook is provided at the entrance of the paper guiding groove for fixing the starting end of the insulating crepe paper.

[0006] Preferably, the regulating valve is a manual rotary valve for the operator to adjust the rotation speed in real time according to process requirements.

[0007] Preferably, the thickness of the elastic rubber sleeve is replaceable to adapt to the bandaging requirements of shielding nets with different diameters.

[0008] The beneficial effects of the present disclosure are as follows: The present disclosure provides a transformer shielding net wrapping device. By setting a foot switch, the input and output of gas can be effectively achieved; by setting a base, the entire device can be effectively supported; by setting a pneumatic motor, the pressure energy of compressed air can be converted into rotational mechanical energy; by setting a rotor blade, the insulating corrugated paper can be driven to wind and wrap; by setting a probe, the rotation of the rotor blade can be effectively sensed; by setting a counter, the number of wrapping layers can be accurately counted; by setting a paper guide groove, the laminated wrapping of the insulating corrugated paper can be effectively standardized to prevent deviation. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 is a perspective view of a transformer shielding net wrapping device of the present disclosure.

[0010] Figure 2 is a front view of the structure of the pneumatic motor in the present disclosure.

[0011] Figure 3 is a side view of the structure of the pneumatic motor in the present disclosure.

[0012] Figure 4 is a front view of the structure of the rotor blade in the present disclosure.

[0013] Figure 5 is a side view of the structure of the rotor blade in the present disclosure.

[0014] Figure 6 is a front view of the structure of the paper guide slot opening in the present disclosure.

[0015] Figure 7 is a top view of the structure of the paper guide slot opening in the present disclosure.

[0016] Figure 8 is a front view of the structure of the foot switch in the present disclosure.

[0017] Figure 9 is a top view of the structure of the foot switch in the present disclosure.

[0018] Figure 10 is a schematic diagram of the structure of the side wall in the present disclosure.

[0019] As shown in the figure: 1. Gas source; 2. Inlet pipe; 3. Outlet pipe; 4. Foot switch; 5. Base; 6. Side wall; 7. Mounting hole; 8. Pneumatic motor; 9. Regulating valve; 10. Rotor blade; 11. Magnet; 12. Elastic rubber sleeve; 13. Paper guide groove; 14. Bracket; 15. Detector; 16. Counter; 17. Hook; 18. Shielding net; 19. Insulating corrugated paper. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Apparently, the described embodiments are some, but not all, of the embodiments of the present disclosure. Generally, the components of the embodiments of the present disclosure described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0021] When the present disclosure is specifically implemented, an instrument transformer shielding net bandaging device includes an air source 1, and the air source 1 is used for energy supply during the entire operation process; a foot switch 4 is arranged at one end of the air source 1, and the foot switch 4 is used to turn on and off the air source 1; an air inlet pipe 2 and an air outlet pipe 3 are connected to the foot switch 4 for gas input and output; the air inlet pipe 2 and the air outlet pipe 3 are fixed to the air inlet and air outlet of a pneumatic motor 8 through mounting holes 7 on the side wall 6, and regulating valves 9 are respectively installed on the air inlet and air outlet, and the regulating valves 9 are used to adjust the input and output amounts of gas to meet the operation requirements and achieve stepless speed regulation; a bracket 14 is arranged below the output end of the pneumatic motor 8, and the bracket 14 is used to support the pneumatic motor 8; a rotor blade 10 is installed on the output shaft of the pneumatic motor 8, and under the action of compressed air, the rotor blade 10 realizes the conversion of pressure energy and rotational mechanical energy through the pneumatic motor 8; a magnet 11 is arranged at one end of the outer wall of the rotor blade 10 close to the pneumatic motor 8, and the magnet 11 is used for the induction of a detector 15; an elastic rubber sleeve 12 is arranged at the end of the rotor blade 10 far from the pneumatic motor 8, the elastic rubber sleeve 12 sleeves half of the rotor blade 10, and a shielding net 18 is sleeved on the elastic rubber sleeve 12. First, it can reduce the wear of the rotor blade 10, and second, it can adapt to the bandaging of shielding nets 18 with different diameters; on the upper side wall 6, a counter 16 is arranged and fixed to the side wall 6 through the mounting hole 7, and the counter 16 is used for counting the number of layers of the shielding net 18 bandaged; the wire of the counter 16 extends along the inner walls of the side wall 6 and the base 5 to the rotor blade 10 and is connected to a detector 15. The detector 15 is set at a distance from the rotor blade 10 according to the induction distance value, and transmits the information of the number of bandaged layers to the counter 16 through the induction of the magnet 11 on the rotor blade 10.

[0022] During the actual use of this device, place the mutual inductor shielding net bandaging device on a horizontal operating table, connect the air source 1, set the parameters of the counter 16 according to the process requirements, adjust the regulating valve 9 to select an appropriate air flow pressure, install the rotor blade 10 on the output shaft of the pneumatic motor 8, select an elastic rubber sleeve 12 with an appropriate thickness, put it on the rotor blade 10, adjust the distance between the detector 15 and the magnet 11 so that it is within the effective detection distance, hang the insulating crepe paper 19 on the hook 17, put the shielding net 18 outside the elastic rubber sleeve 12 so that the part to be bandaged corresponds to the paper guide groove 13, tear off one end of the insulating crepe paper 19, insert it through the paper guide groove 13, and stick it on the shielding net 18 to be bandaged. Step on the foot switch 4, the gas enters the cylinder of the pneumatic motor 8 through the air inlet pipe 2, and the pressure energy of the compressed air is converted into rotational mechanical energy through the rotating blade 10, realizing the laminated bandaging of the insulating crepe paper 19 on the shielding net 18. When the counter reaches the required number of bandaging layers in the process, release the foot switch, the gas is discharged through the air outlet pipe 3, the pneumatic motor 8 stops operating, the rotor blade 10 stops rotating, cuts off and sticks the insulating crepe paper 19, and the bandaging of the mutual inductor shielding net 18 is completed.

[0023] The above shows and describes the basic principles, main features and advantages of the present disclosure. Those skilled in the art of this industry should understand that the present disclosure is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present disclosure. Without departing from the spirit and scope of the present disclosure, the present disclosure will have various changes and improvements, and these changes and improvements all fall within the scope of the present disclosure claimed. The scope of protection claimed by the present disclosure is defined by the appended claims and their equivalents.

Claims

1. A transformer shielding net bandaging device, characterized in that The air source (1) is connected to the foot switch (4). An intake pipe (2) and an exhaust pipe (3) are connected to the foot switch (4). The intake pipe (2) and the exhaust pipe (3) are fixed to the intake port and the exhaust port of the pneumatic motor (8) through the mounting holes (7) on the side wall (6). Control valves (9) are respectively installed on the intake port and the exhaust port. The control valves (9) are used to adjust the input and output amounts of gas. A bracket (14) is arranged below the output end of the pneumatic motor (8). A rotor blade (10) is installed on the output shaft of the pneumatic motor (8). A magnet (11) is arranged on the outer wall of the rotor blade (10) near one end of the pneumatic motor (8). The magnet (11) is used for the induction of the detector (15). An elastic rubber sleeve (12) is arranged at the end of the rotor blade (10) far from the pneumatic motor (8). The elastic rubber sleeve (12) sleeves half of the rotor blade (10). A shielding net (18) is sleeved on the elastic rubber sleeve (12). A counter (16) is arranged on the side wall (6). The counter (16) senses the number of rotations of the rotor blade (10) through the detector (15). A paper guide groove (13) is arranged on the side wall (6) of the device and is used to guide the insulating corrugated paper (19) to be laminated and wrapped along a preset path.

2. The current transformer shielding net wrapping device according to claim 1, characterized in that A hook (17) is arranged at the entrance of the paper guide groove (13) and is used to fix the starting end of the insulating corrugated paper (19).

3. The transformer shielding net bandaging device according to claim 1, characterized in that, The control valve (9) is a manual rotary valve and is used for the operator to adjust the rotation speed in real time according to the process requirements.

4. The transformer mutual inductor shielding net bandaging device according to claim 1, wherein, The thickness of the elastic rubber sleeve (12) is replaceable to adapt to the wrapping requirements of shielding nets (18) with different diameters.

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