Self-adaptive wound core expanding device
By designing an adaptive coil core support device, using the cooperation of the bracket, support floating seat and foot, the impact of the weight and strength of the coil core in the existing technology is solved, and effective support and deformation of the coil core is achieved. Improves winding quality and production efficiency.
Patent Information
- Application Number
- CN202411343505.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2024-12-20
AI Technical Summary
The prior art cannot effectively support the coiled core with large weight and high strength, resulting in difficult winding process, slow speed and unstable quality.
An adaptive coil core support device is designed, including a bracket, a supporting floating seat, a rising head seat and a take-off and landing driver. Through the coordination of the movable and fixed legs, the coil core is applied by the telescopic action of the supporting cylinder. The pushing pressure deforms it into a rectangle, and the position accuracy influence and torque effect are reduced through the design of the floating seat, thereby achieving adaptive support.
Reliable support and increase treatment of the coil core is achieved, winding quality and production efficiency are improved, weight and strength affect the support and increase force, and ensure the smooth progress and adaptability of the support and increase process.
Smart Images
Figure CN119170399A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of wound core processing, and in particular to an adaptive wound core expansion device. Background Art
[0002] The three-dimensional wound core transformer is a new type of energy-saving power transformer. The key component, the three-dimensional wound core, is composed of three rectangular cores of exactly the same size. Each rectangular core is wound from materials such as amorphous thin strips. Due to the particularity of the rectangular core shape, the winding process needs to release the amorphous thin strip in coordination with the change in linear speed. The winding is difficult, the speed is very slow, and the winding quality is unstable. To this end, the inventors have improved the production process of the wound core, first winding a circular core, and then processing the circular core into a rectangular core. This can greatly simplify the winding process, improve production efficiency, and improve winding quality. Among them, the processing of the circular core into a rectangular core is mainly considered to be achieved by the expansion method, that is, using an expansion device to forcibly apply a pushing force in a straight line direction from the inside of the circular core to deform it into a rectangular shape. However, due to the large weight and high strength of the wound core itself, there is no device in the prior art that can expand it to complete the above work. Summary of the invention
[0003] The technical problem to be solved by the present invention is to provide an adaptive wound core expansion device which can expand a wound core, is less affected by the weight and strength of the wound core, and is reliable to use.
[0004] In order to solve the above technical problems, the technical solution of the present invention is: an adaptive rolled iron core expansion device, including a bracket, a floating expansion seat arranged to slide horizontally along the expansion direction is installed on the bracket, a head expansion seat arranged to be lifted and lowered is installed on the floating expansion seat, and a lifting and lowering drive is provided between the head expansion seat and the floating expansion seat; an expansion cylinder with a piston rod extending along the expansion direction is fixedly provided on the head expansion seat, a movable expansion foot is fixedly provided on the piston rod of the expansion cylinder, and a fixed expansion foot is provided on the head expansion seat at the bottom side of the cylinder of the expansion cylinder; when the piston rod of the expansion cylinder is extended, the movable expansion foot presses against one side of the inner wall of the rolled iron core, and the fixed expansion foot relies on the sliding setting of the floating expansion seat to press against the other side of the inner wall of the rolled iron core in reverse.
[0005] As a preferred technical solution, the bracket is provided with a return holding structure for holding the inflatable floating seat back to an initial position.
[0006] As a preferred technical solution, the return holding structure includes return holding springs respectively arranged in both sliding directions of the expansion floating seat.
[0007] As a preferred technical solution, the movable expansion foot includes a first molding surface on the movable side for forming the rectangular edges of the corresponding sides of the rolled iron core, and the movable side second molding surfaces for forming the rectangular edges of the two sides of the rolled iron core are respectively provided on both sides of the first molding surface on the movable side of the movable expansion foot; the fixed expansion foot includes a first molding surface on the fixed side for forming the rectangular edges of the corresponding sides of the rolled iron core, and the fixed side second molding surfaces for forming the rectangular edges of the two sides of the rolled iron core are respectively provided on both sides of the first molding surface on the fixed side of the fixed expansion foot; the second molding surface on the movable side is coplanar with the second molding surface on the corresponding side.
[0008] As a preferred technical solution, a center-entry guide structure is provided on the expansion head seat below the movable expansion foot and the fixed expansion foot.
[0009] As a preferred technical solution, a position operating handle is provided on the expansion floating seat.
[0010] As a preferred technical solution, the bracket is connected with a displacement mechanism, and the moving direction of the bracket is arranged to cross the sliding direction of the expansion floating seat.
[0011] As a preferred technical solution, the lifting and lowering drive includes a lifting and lowering drive cylinder.
[0012] Due to the adoption of the above technical scheme, in the present invention, when the expansion cylinder is retracted, the movable expansion foot and the fixed expansion foot reach a smaller cross-section and can enter the rolled iron core by descending; after entering, the expansion cylinder is extended, the movable expansion foot presses against one side of the inner wall of the rolled iron core, and the fixed expansion foot relies on the sliding setting of the expansion floating seat to press against the other side of the inner wall of the rolled iron core in the opposite direction, and the rolled iron core is deformed into a rectangle under the expansion action. After the shape is maintained, the expansion cylinder is retracted, and the expansion head seat rises to realize the expansion processing of the rolled iron core. During the above-mentioned expansion process, the floating setting of the expansion floating seat, on the one hand, reduces the influence of the position accuracy when the expansion foot enters the winding core, so that the expansion proceeds smoothly; on the other hand, after the expansion starts, the floating effect of the expansion floating seat can avoid the heavy and high-strength winding core from generating a reverse torque on the structure between the expansion head seat and the bracket, so that the movable expansion foot and the fixed expansion foot can accurately maintain the expansion force along the expansion direction, reducing the influence of the weight and strength of the winding core on the expansion force, so that the present invention is less affected by structural deformation and is reliable to use; on another hand, after the expansion starts, no matter whether the winding core has a slight displacement in the expansion direction, the floating of the expansion floating seat can adapt to it, forming an adaptive expansion effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The following drawings are intended only to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.
[0014] Figure 1 is a schematic diagram of the three-dimensional structure of an embodiment of the present invention;
[0015] Figure 2 yes Figure 1 A magnified schematic diagram of the AA structure;
[0016] Figure 3 yes Figure 2 The state diagram of the expansion cylinder piston rod extending;
[0017] Figure 4 yes Figure 1 A schematic diagram of a top view structure;
[0018] Figure 5 It is a three-dimensional enlarged structural schematic diagram of the expansion head seat and the expansion cylinder of the embodiment of the present invention;
[0019] Figure 6 This is a three-dimensional structural principle diagram of an embodiment of the present invention when inflated;
[0020] Figure 7 yes Figure 6 Schematic diagram of the three-dimensional structure from another perspective;
[0021] Figure 8 yes Figure 6 State diagram during expansion;
[0022] Fig. 9 yes Figure 8 Three-dimensional structural principle diagram from another perspective.
[0023] In the figure: 1- bracket; 11- shifting mechanism; 2- supporting and floating seat; 21- position operating handle; 22- return holding structure; 3- head expansion seat; 31- lifting and lowering drive; 4- supporting and expanding cylinder; 5- movable expansion foot; 51- first molding surface of movable side; 52- second molding surface of movable side; 6- fixed expansion foot; 61- first molding surface of fixed side; 62- second molding surface of fixed side; 7- core inlet guide structure; 9- winding core. DETAILED DESCRIPTION
[0024] The present invention is further described below in conjunction with the accompanying drawings and examples. In the following detailed description, certain exemplary embodiments of the present invention are described only by way of illustration. Needless to say, those of ordinary skill in the art will recognize that the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and are not intended to limit the scope of protection of the claims.
[0025] like Figure 1 ,as well as Figures 6 to 9As shown, the adaptive rolled core expansion device includes a bracket 1, on which is mounted an expansion floating seat 2 which is arranged to slide laterally along the expansion direction. The lateral sliding here can be achieved by using structures such as guide rods, guide sleeves, or guide rail slides, and is not limited here. This embodiment is only illustrated by the guide rod and guide sleeve structure.
[0026] The expansion seat 3 with lifting and lowering activities is installed on the expansion floating seat 2. The lifting and lowering activities here can also be realized by structures such as guide rods and guide sleeves or guide rail slides. This embodiment is only illustrated by the guide rod and guide sleeve structure. A lifting and lowering driver 31 is provided between the expansion seat 3 and the expansion floating seat 2. The lifting and lowering driver 31 drives the expansion seat 3 to lift or lower. The lifting and lowering driver 31 can be directly realized by a drive cylinder or by a motor with transmission. This embodiment is only illustrated by the use of a drive cylinder, that is, the lifting and lowering driver 31 includes a lifting and lowering drive cylinder.
[0027] like Figures 1 to 5 As shown, the expansion head seat 3 is fixed with an expansion cylinder 4 whose piston rod is extended in the expansion direction, and the piston rod of the expansion cylinder 4 is fixed with a movable expansion foot 5, and the expansion head seat 3 is provided with a fixed expansion foot 6 at the bottom of the expansion cylinder 4; when the piston rod of the expansion cylinder 4 is extended, the movable expansion foot 5 presses against one side of the inner wall of the coiled core 9, and the fixed expansion foot 6 presses against the other side of the inner wall of the coiled core 9 in the opposite direction by the sliding setting of the expansion floating seat 2. Through the above structural principle, the expansion effect on the coiled core 9 is achieved.
[0028] like Figure 2 and Figure 3 As shown, the movable expansion foot 5 of this embodiment includes a first movable side molding surface 51 for molding the rectangular side edge of the coil core 9, and the movable side second molding surfaces 52 for molding the rectangular side edges of the coil core 9 are respectively provided on both sides of the first movable side molding surface 51 of the movable expansion foot 5; the fixed expansion foot 6 includes a first fixed side molding surface 61 for molding the rectangular side edge of the coil core 9, and the fixed side second molding surfaces 62 for molding the rectangular side edges of the coil core 9 are respectively provided on both sides of the first fixed side molding surface 61 of the fixed expansion foot 6; the movable side second molding surface 52 is coplanarly arranged with the corresponding side fixed side second molding surface 62. In this way, the cross-sections of the movable expansion foot 5 and the fixed expansion foot 6 form a rectangular outer contour. When the expansion cylinder 4 is extended, the movable expansion foot 5 and the fixed expansion foot 6 move away from each other, which is equivalent to the extension of the above-mentioned rectangular outer contour in the length direction. This extension generates expansion of the coil core 9 and forces the coil core 9 to deform to match the rectangular outer contour of the expansion foot.
[0029] When this embodiment is used, Figure 6 and Figure 7As shown, the circular coiled core 9 is placed on a designated supporting structure. Then the expansion foot of this embodiment is moved to just above the center opening of the coiled core 9. Preferably, the bracket 1 is connected to a shifting mechanism 11, and the moving direction of the bracket 1 is cross-set with the sliding direction of the supporting floating seat 2. Through shifting control, when the coiled core 9 is taken and placed on the supporting structure, the expansion foot can leave the top of the coiled core 9 without affecting the taking and placing operation. Conventionally, the shifting mechanism 11 can be implemented manually, by a drive cylinder, or by a motor-coordinated transmission, and is not limited here.
[0030] The lifting and lowering driver 31 drives the expansion head seat 3 to descend, and the movable expansion foot 5 and the fixed expansion foot 6 enter the winding core 9. In this process, the floating of the expansion floating seat 2 can facilitate fine adjustment of the positions of the movable expansion foot 5 and the fixed expansion foot 6, so that they can smoothly enter the winding core 9. Preferably, a position operating handle 21 is provided on the expansion floating seat 2 to facilitate manual fine adjustment of the entry position of the expansion foot, further improving the smoothness of the expansion foot entering.
[0031] Preferably, if Figure 1 and Figure 5 As shown, a core entry guide structure 7 is provided on the expansion head seat 3 below the movable expansion foot 5 and the fixed expansion foot 6, and the core entry guide structure 7 further promotes the smoothness of the expansion foot entering the winding core 9. The core entry guide structure 7 can be implemented by a cone structure, and for the movable expansion foot 5 in this embodiment that can be driven to move, the movable expansion foot 5 and the fixed expansion foot 6 are respectively provided with the core entry guide structure 7, and the core entry guide structure 7 only needs to form an entry guide for the rectangular outer contour of the expansion foot.
[0032] Preferably, if Figure 1 and Figure 4 As shown, the bracket 1 is provided with a return holding structure 22 for holding the expansion floating seat 2 back to the initial position. This initial position is such that each time the circular coil core 9 is placed on the supporting structure, the expansion foot can directly drop into the coil core 9 for setting. Therefore, under the return action of the return holding structure 22, the manual fine-tuning operation each time the expansion foot enters the coil core 9 can be reduced, which is beneficial to improving the expansion processing efficiency. The return holding structure 22 of this embodiment includes return holding springs respectively arranged in both sliding directions of the expansion floating seat 2. The spring force of the return holding springs on both sides forms a centering force, so that the expansion floating seat 2 can return reliably.
[0033] After the expansion foot enters the coiled core 9, the piston rod of the expansion cylinder 4 extends out, the movable expansion foot 5 presses against one side of the inner wall of the coiled core 9, and the fixed expansion foot 6 presses against the other side of the inner wall of the coiled core 9 in the opposite direction by relying on the sliding setting of the expansion floating seat 2, thereby forming an expansion effect on the coiled core 9; under the continuous driving of the expansion cylinder 4, the coiled core 9 gradually deforms to match the rectangular outer contour of the expansion foot, that is, gradually deforms into a rectangle, such as Figure 8 and Fig. 9 Based on the high strength of the winding core 9, the movable expansion foot 5 should maintain a reliable rigid abutment during the process of being driven out, so a rigid guide structure should preferably be added between the movable expansion foot 5 and the expansion head seat 3 or the cylinder barrel of the expansion cylinder 4; this guide structure can be implemented by a guide rod sliding sleeve or a guide rod sliding hole and other structures, which are not limited here.
[0034] During this expansion process, the floating setting of the expansion floating seat 2 can, on the one hand, prevent the heavy and high-strength coiled iron core 9 from generating reverse torque on the guide structure between the expansion head seat 3 and the bracket 1, so that the movable expansion foot 5 and the fixed expansion foot 6 can accurately maintain the expansion force along the expansion direction, reducing the influence of the weight and strength of the coiled iron core 9 on the expansion force, so that this embodiment is less affected by structural deformation and is reliable to use; on the other hand, during the expansion process, no matter whether the coiled iron core 9 has a slight displacement in the expansion direction, the floating of the expansion floating seat 2 can adapt to it, forming an adaptive expansion effect.
[0035] After the coiled core 9 is deformed into a rectangle, the expansion cylinder 4 is extended for a certain period of time to keep the coiled core 9 in shape. After the shape is kept, the expansion cylinder 4 is retracted, the rectangular outer contours of the movable expansion foot 5 and the fixed expansion foot 6 are reduced, and the lifting and lowering driver 31 drives the expansion head seat 3 to rise, and the expansion foot is withdrawn from the coiled core 9. The rectangular coiled core 9 is removed, and a new round coiled core 9 is placed, and the above expansion process is repeated.
[0036] In this embodiment, by means of the floating installation of the expansion floating seat 2, the expansion operation can be reliably performed by using a simple oil cylinder drive on the expansion head seat 3. The expansion force is obvious and is less affected by the weight and strength of the rolled core 9. The expansion process has strong adaptive flexibility, thereby achieving expansion processing of the rolled core 9.
[0037] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.
Claims
1. An adaptive coiled core expansion device, including a bracket, characterized in that: The bracket is equipped with a floating expansion seat which is arranged to slide laterally along the expansion direction, and the floating expansion seat is equipped with an expansion head seat which is arranged to be lifted and lowered, and a lifting and lowering drive is arranged between the expansion head seat and the expansion floating seat; the expansion head seat is fixedly provided with an expansion cylinder which is arranged to extend the piston rod along the expansion direction, and a movable expansion foot is fixedly installed on the piston rod of the expansion cylinder, and the head seat is provided with a fixed expansion foot at the bottom side of the cylinder of the expansion cylinder; when the piston rod of the expansion cylinder is extended, the movable expansion foot presses against one side of the inner wall of the winding iron core, and the fixed expansion foot presses against the other side of the inner wall of the winding iron core in reverse according to the sliding setting of the floating expansion seat.
2. The adaptive rolled core expansion device according to claim 1, characterized in that: The bracket is provided with a return holding structure for holding the inflated floating seat back to an initial position.
3. The adaptive rolled core expansion device according to claim 2, characterized in that: The return holding structure comprises return holding springs respectively arranged on both sliding directions of the expansion floating seat.
4. The adaptive rolled core expansion device according to claim 1, characterized in that: The movable expansion foot includes a first molding surface on the movable side for forming the rectangular edges of the corresponding sides of the rolled iron core, and the movable side second molding surfaces on both sides of the movable side first molding surface are respectively provided on the movable expansion foot for forming the rectangular edges of the two sides of the rolled iron core; the fixed expansion foot includes a first molding surface on the fixed side for forming the rectangular edges of the corresponding sides of the rolled iron core, and the fixed side second molding surfaces on both sides of the fixed side first molding surface are respectively provided on the fixed expansion foot for forming the rectangular edges of the two sides of the rolled iron core; the movable side second molding surface is coplanar with the fixed side second molding surface on the corresponding side.
5. The adaptive rolled core expansion device according to claim 1, characterized in that: A core guide structure is provided on the expansion head seat below the movable expansion foot and the fixed expansion foot.
6. The adaptive rolled core expansion device according to claim 1, characterized in that: A position operating handle is provided on the expansion floating seat.
7. The adaptive rolled core expansion device according to claim 1, characterized in that: The bracket is connected with a displacement mechanism, and the moving direction of the bracket is arranged to cross the sliding direction of the expansion floating seat.
8. The adaptive rolled core expansion device according to claim 1, characterized in that: The lifting and lowering drive comprises a lifting and lowering drive cylinder.