Transformer silicon steel sheet shearing line guide device

By designing a guide rail device for shearing silicon steel sheets in transformers, the problem of sheet damage caused by misalignment of the guide rail center was solved, achieving rapid alignment and stability of the guide rail and improving the shearing quality of silicon steel sheets.

CN224384072UActive Publication Date: 2026-06-19GUANGZHOU VOCATIONAL COLLEGE OF TECH & BUSINESS

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU VOCATIONAL COLLEGE OF TECH & BUSINESS
Filing Date
2025-04-27
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

During the shearing process of silicon steel sheets in transformers, misalignment of the guide rail centers leads to damage and burrs on the sheets, affecting the core lamination coefficient and magnetic properties. Furthermore, due to the different sheet sizes, it is difficult to adjust the centers of multiple guide rails.

Method used

A transformer silicon steel sheet shearing guide rail device was designed. Through the combination of sliding groove, slider, threaded shaft and guide rail, the center of the guide rail can be quickly aligned. Ceramic bearings and linear bearings are used to ensure the stability and consistency of the guide rail.

Benefits of technology

It improves the flexibility and practicality of the guide rail, avoids the offset and damage of the sheet metal during the shearing process, ensures the stability and consistency of the silicon steel sheets, and enhances the lamination coefficient and magnetic properties of the iron core.

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Abstract

This utility model belongs to the technical field of transformer silicon steel sheet technology and discloses a transformer silicon steel sheet shearing line guide rail device, including a worktable. The top surface of the worktable has multiple sliding grooves, and the bottom surface of the sliding grooves is fixedly provided with a slide rail. The top surface of the slide rail is slidably provided with multiple sliders. The top surface of one slider is fixedly provided with a first guide rail, and the top surface of the slider on the other side is fixedly provided with a second guide rail. The second guide rail is internally threaded with a threaded shaft, and the outer side of the other end of the threaded shaft is threadedly connected to the first guide rail. Through the above solution, the problem of difficulty in calibrating the center of multiple guide rails when adjusting the guide rails due to different plate size requirements is solved, avoiding the problem of plate damage after cutting due to the misalignment of guide rail centers or heights, and further preventing the core lamination coefficient and magnetic properties from being affected during subsequent use.
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Description

Technical Field

[0001] This utility model belongs to the technical field of transformer silicon steel sheet, specifically a transformer silicon steel sheet shearing wire guide device. Background Technology

[0002] The transformer core is the main magnetic circuit part of the transformer. It is usually made of hot-rolled or cold-rolled silicon steel sheets with high silicon content and coated with insulating varnish. Electrical silicon steel sheet is the ideal material for making transformer core. Sheet shearing is the final forming process of ultra-high voltage and extra-high voltage transformers. The damage and burrs caused by sheet shearing will reduce the core lamination coefficient and magnetic properties, resulting in increased core loss.

[0003] There are many reasons why the shearing of sheet metal can cause damage and burrs, thereby reducing the core lamination coefficient and magnetic properties and increasing core loss. These reasons include mismatched hardness of the shearing blade, defects on the material surface, insufficient equipment precision, and misalignment of the centers of the two guide rails.

[0004] In real life, due to the length of the sheet metal, multiple guide rails need to be arranged on both sides. At the same time, the size of the sheet metal is not fixed. Each type of transformer requires a different type of iron core. This requires adjusting the guide rails of the sheet metal. However, because there are many guide rails, it is difficult to control the center of multiple guide rails to be aligned at the same time when adjusting the guide rails. As a result, the sheet metal will be damaged or have burrs during subsequent cutting. Utility Model Content

[0005] To address the problems mentioned in the background section, this invention provides a transformer silicon steel sheet shearing guide rail device, which has the advantage of quickly aligning the centers of the guide rails during adjustment. This invention allows for rapid center alignment during guide rail adjustment, solving the problem of difficulty in calibrating multiple guide rail centers when adjusting guide rails due to different sheet size requirements. It avoids damage to the sheet metal after cutting due to misalignment of guide rail centers or heights, and further prevents the core lamination coefficient and magnetic properties from being affected during subsequent use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a transformer silicon steel sheet shearing wire guide rail device, including a workbench, the top surface of which is provided with multiple sliding grooves, the bottom surface of which is fixedly provided with a slide rail, the top surface of which is slidably provided with multiple sliders, the top surface of one slider is fixedly provided with a first guide rail, the top surface of the other slider is fixedly provided with a second guide rail, the second guide rail is internally threaded with a threaded shaft, and the outer side of the other end of the threaded shaft is threadedly connected to the first guide rail, the top inner side of the first guide rail is fixedly provided with a pin, the outer side of which is rotatably provided with a ceramic bearing, and the outer side of which is fitted with a steel sheet body, the rotation of the threaded shaft drives the first and second guide rails on both sides to move.

[0007] Preferably, the top surface of the workbench is fixedly provided with multiple support plates, and the inside of each support plate is fixedly provided with a rotating bearing, and the threaded shaft is rotatably connected to the rotating bearing.

[0008] Preferably, a connecting shaft is slidably disposed inside the threaded shaft, a handwheel is fixedly disposed on the outer side of the connecting shaft, and a plurality of limiting blocks are fixedly disposed on the inner side of the connecting shaft.

[0009] Preferably, a square groove is formed inside one side of the threaded shaft, and the limiting block fits into the square groove.

[0010] Preferably, a circular groove is formed inside one side of the threaded shaft, and the square groove communicates with the circular groove.

[0011] Preferably, a fixing plate is fixedly provided on the inner side of the first guide rail, a sliding sleeve is slidably provided on the top surface of the fixing plate, and a roller is rotatably provided on the top surface of the sliding sleeve.

[0012] Preferably, a linear bearing is fixedly installed inside the first guide rail, and a calibration shaft is slidably installed inside the linear bearing.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model uses a handwheel to rotate a threaded shaft. When the threaded shaft rotates, it causes the first and second guide rails at both ends on the outer side to move inward simultaneously, thereby guiding and supporting plates with different size requirements, increasing the flexibility and practicality of the device.

[0015] 2. This utility model uses a linear bearing to slide internally, thereby adjusting the center of the longitudinal slide rail, ensuring the consistency of the longitudinal slide rail center, avoiding the silicon steel sheet from shifting during the shearing process, and ensuring the stability and consistency of the silicon steel sheet during the shearing process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the transformer silicon steel sheet shearing guide rail device of this utility model;

[0017] Figure 2 This is a schematic diagram of the calibration shaft mounting structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the slide rail installation structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the support plate installation structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the installation structure of the limiting block of this utility model.

[0021] In the diagram: 1. Workbench; 2. Sliding groove; 3. Slide rail; 4. Slider; 5. First guide rail; 6. Threaded shaft; 7. Pin; 8. Second guide rail; 9. Steel plate body; 10. Support plate; 11. Calibration shaft; 12. Rotary bearing; 13. Ceramic bearing; 14. Handwheel; 15. Connecting shaft; 16. Limiting block; 17. Square groove; 18. Round groove; 19. Fixing plate; 20. Sliding sleeve; 21. Roller; 22. Linear bearing. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1 to 5 As shown, this utility model provides a transformer silicon steel sheet shearing wire guide rail device, including a workbench 1. The top surface of the workbench 1 is provided with multiple sliding grooves 2. The bottom surface of the sliding grooves 2 is fixedly provided with a slide rail 3. The top surface of the slide rail 3 is slidably provided with multiple sliders 4. The top surface of one slider 4 is fixedly provided with a first guide rail 5, and the top surface of the other slider 4 is fixedly provided with a second guide rail 8. The inside of the second guide rail 8 is threadedly connected with a threaded shaft 6, and the outer side of the other end of the threaded shaft 6 is threadedly connected to the first guide rail 5. The top inner side of the first guide rail 5 is fixedly provided with a pin 7. The outer side of the pin 7 is rotatably provided with a ceramic bearing 13. The outer side of the ceramic bearing 13 is fitted with a steel sheet body 9. Rotating the threaded shaft 6 drives the first guide rail 5 and the second guide rail 8 on both sides to move, adjusting the distance between the first guide rail 5 and the second guide rail 8, thereby guiding and supporting the steel sheet body 9 with different size requirements, increasing the flexibility and practicality of the device.

[0024] Specifically, multiple support plates 10 are fixedly installed on the top surface of the workbench 1. Rotary bearings 12 are fixedly installed inside the support plates 10, and the threaded shaft 6 is rotatably connected to the rotary bearings 12. The support plates 10 on both sides are used to support the two ends of the threaded shaft 6. At the same time, the rotary bearings 12 can reduce the friction between the threaded shaft 6 and the support plates 10.

[0025] Furthermore, a connecting shaft 15 is slidably arranged inside the threaded shaft 6, a handwheel 14 is fixedly arranged on the outside of the connecting shaft 15, and multiple limit blocks 16 are fixedly arranged on the inside of the connecting shaft 15. The handwheel 14 allows the operator to easily rotate the threaded shaft 6.

[0026] Furthermore, a square groove 17 is provided inside one side of the threaded shaft 6, and the limiting block 16 fits into the square groove 17. When the limiting block 16 is inside the square groove 17, the handwheel 14 can be turned to drive the threaded shaft 6.

[0027] It is worth noting that a circular groove 18 is provided inside one side of the threaded shaft 6, and the square groove 17 communicates with the circular groove 18. Pushing the handwheel 14 will cause the limiting block 16 to move into the inside of the circular groove 18. At this time, rotating the handwheel 14 will prevent the limiting block 16 from causing the threaded shaft 6 to rotate.

[0028] It is worth noting that a fixing plate 19 is fixedly installed on the inner side of the first guide rail 5, a sliding sleeve 20 is slidably installed on the top surface of the fixing plate 19, and a roller 21 is rotatably installed on the top surface of the sliding sleeve 20. The sliding sleeve 20 and the roller 21 are used to support the steel sheet body 9 and prevent it from collapsing in the center due to gravity. The fixing plate 19 on the inner side of the second guide rail 8 is located on the other side inside the sliding sleeve 20.

[0029] It is worth mentioning that a linear bearing 22 is fixedly installed inside the first guide rail 5, and a calibration shaft 11 is slidably installed inside the linear bearing 22. The position of the guide rail on the same longitudinal side can be calibrated through the calibration shaft 11.

[0030] Among them, the rotary bearing 12, ceramic bearing 13, and linear bearing 22 are existing technologies and will not be described in detail; at the same time, this utility model also includes a power supply, controller, and switch, etc., which are not the main technical points of this patent and will not be described in detail; the "front, back, left, and right" perspectives of this device are as follows: Figure 1 The direction shown in the diagram is the reference.

[0031] Working principle:

[0032] When using the transformer silicon steel sheet shearing guide rail device, firstly, adjust the position of the guide rail according to the size requirements of the steel sheet body 9. Turn the handwheel 14, which drives the connecting shaft 15. The rotating bearing 12 inside the support plate 10 can reduce the friction between the connecting shaft 15 and the support plate 10, increasing smoothness. The connecting shaft 15 drives the threaded shaft 6 to rotate through the limit block 16 at the tail end. When the threaded shaft 6 rotates, it drives the first guide rail 5 and the second guide rail 8 at both outer ends to move until they are adjusted to match the steel sheet body 9. Then, push the handwheel 14 to push the limit block 16 from the inside of the square groove 17 to the inside of the round groove 18, preventing the handwheel 14 from rotating for some reason and causing the position of the first guide rail 5 and the second guide rail 8 to change. Then, continue to adjust each set of transverse guide rails on the top surface of the worktable 1, and then insert the calibration shaft inside the linear bearing 22. 11. This allows for the calibration of the guide rails on the same longitudinal side to ensure their centers correspond. When the guide rails move, the interaction between the bottom slider 4 and the slide rail 3 inside the sliding groove 2 increases the smoothness of movement. A fixing plate 19 is provided on the inner side of the guide rails to support the sliding sleeve 20. The roller 21 on the top surface of the sliding sleeve 20 supports the steel sheet body 9 and pushes the steel sheet body 9 to move. The ceramic bearing 13 fixed at the top of the guide rails by the pin 7 serves to guide the steel sheet body 9. This utility model can quickly align the centers of the guide rails when adjusting them, solving the problem of difficulty in calibrating the centers of multiple guide rails when adjusting the guide rails due to different plate size requirements. It avoids the problem of plate damage after cutting due to unequal guide rail centers or heights, and further avoids affecting the iron core lamination coefficient and magnetic properties during subsequent use.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A guiderail device for transformer silicon steel sheet cutting lines, comprising a worktable (1), characterized in that: The top surface of the workbench (1) is provided with multiple sliding grooves (2). The bottom surface of the sliding groove (2) is fixedly provided with a slide rail (3). Multiple sliders (4) are slidably provided on the top surface of the slide rail (3). The top surface of one slider (4) is fixedly provided with a first guide rail (5). The top surface of the other slider (4) is fixedly provided with a second guide rail (8). The second guide rail (8) is internally threaded with a threaded shaft (6). The outer side of the other end of the threaded shaft (6) is threadedly connected to the first guide rail (5). The top inner side of the first guide rail (5) is fixedly provided with a pin (7). The outer side of the pin (7) is rotatably provided with a ceramic bearing (13). The outer side of the ceramic bearing (13) is fitted with a steel sheet body (9). Rotating the threaded shaft (6) drives the first guide rail (5) and the second guide rail (8) on both sides to move.

2. The transformer silicon steel shear line guide rail apparatus of claim 1, wherein: The top surface of the workbench (1) is fixedly provided with multiple support plates (10), and the inside of the support plate (10) is fixedly provided with a rotating bearing (12), and the threaded shaft (6) is rotatably connected to the rotating bearing (12).

3. The transformer silicon steel shear line guide rail apparatus of claim 1, wherein: The threaded shaft (6) has a connecting shaft (15) slidably disposed inside it. A handwheel (14) is fixedly disposed on the outside of the connecting shaft (15). Multiple limit blocks (16) are fixedly disposed on the inside of the connecting shaft (15).

4. The transformer silicon steel shear line guide rail apparatus of claim 1, wherein: A square groove (17) is provided inside one side of the threaded shaft (6), and the limiting block (16) fits into the square groove (17).

5. The transformer silicon steel shear line guide rail apparatus of claim 1, wherein: A circular groove (18) is provided inside one side of the threaded shaft (6), and the square groove (17) communicates with the circular groove (18).

6. The transformer silicon steel shear line guide rail apparatus of claim 1, wherein: A fixing plate (19) is fixedly provided on the inner side of the first guide rail (5), and a sliding sleeve (20) is slidably provided on the top surface of the fixing plate (19), and a roller (21) is rotatably provided on the top surface of the sliding sleeve (20).

7. The transformer silicon steel shear line guide rail apparatus of claim 1, wherein: The first guide rail (5) is fixedly provided with a linear bearing (22), and the linear bearing (22) is slidably provided with a calibration shaft (11).