Insulation paper cutting device

Abstract

The utility model discloses an insulation paper cutting device, which relates to the field of transformer production, and comprises an equipment platform, a stretching and cutting mechanism is arranged on the upper surface of the equipment platform, the stretching and cutting mechanism comprises a transverse plate, the two ends of the transverse plate are fixedly connected with stand columns, and the bottom ends of the stand columns are fixedly connected to the upper surface of the equipment platform. A vertical sliding through hole is formed in the middle of the stand column, a hydraulic cylinder is fixedly connected to the bottom face of the transverse plate, and a cutter is fixedly connected to the bottom end of the hydraulic cylinder. The insulation paper stretching device has the beneficial effects that a hydraulic cylinder is controlled to enable a cutter to conduct downward cutting, when the cutter descends, two stretching outer frames are made to move away from each other through hinged stretching connecting rods, insulation paper clamped in the stretching outer frames is stretched under the action of pulling force, meanwhile, a buffering mechanism is arranged in each stretching outer frame, and after the insulation paper is stretched, the insulation paper is prevented from falling off. And the two stretching outer frames continue to be away from each other, and the distance between the two inner frames is kept unchanged, so that the clamping distance is unchanged, and the situation that the internal stress is damaged due to continuous pulling of the insulating paper caused by descending of the cutter is avoided.

Description

Technical Field

[0001] The utility model relates to the field of transformer production, in particular to an insulating paper cutting device. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are the primary coil, secondary coil and iron core. In electrical equipment and wireless circuits, it is often used to increase or decrease voltage, match impedance, and provide safety isolation. Insulating paper is required for interlayer insulation and ground insulation of the transformer, and the production process of insulating paper requires cutting.

[0003] For example, the patent document with the publication number CN219685772U discloses an insulating paper cutting device, which cuts the insulating paper of the unwound roll longitudinally by adjusting the spacing of the annular cutters. However, the transverse cutting of the insulating paper of the unwound roll is still prone to deviation during cutting due to the soft paper. Utility Model Content

[0004] The purpose of the utility model is to provide an insulating paper cutting device in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] An insulating paper cutting device comprises an equipment platform, wherein the upper surface of the equipment platform is provided with a stretching and cutting mechanism, the stretching and cutting mechanism comprises a horizontal plate, both ends of the horizontal plate are fixedly connected with upright posts, the bottom ends of the upright posts are fixedly connected to the upper surface of the equipment platform, a vertical sliding through hole is opened in the middle of the upright posts, a hydraulic cylinder is fixedly connected to the bottom surface of the horizontal plate, a cutting knife is fixedly connected to the bottom end of the hydraulic cylinder, both ends of the cutting knife are fixedly connected with longitudinal sliders, the longitudinal sliders are slidably connected to the vertical sliding through holes, stretching connecting rods are hinged on both sides of the top of the cutting knife, a stretching outer frame is hinged on the bottom end of the stretching connecting rod, both ends of the stretching outer frame are slidably connected with stretching sliding beams, the stretching sliding beams are fixedly connected to the upper surface of the equipment platform, a buffer mechanism is provided inside the stretching outer frame, a clamping mechanism is provided inside the buffer mechanism, and a reeling mechanism is provided on one side of the stretching and cutting mechanism.

[0007] Preferably, the buffer mechanism comprises an inner frame, which is slidably connected to the inner side of the stretched outer frame, and the upper and lower sides of the inner frame are fixedly connected with connecting plates, and the upper and lower sides of the stretched outer frame are provided with reset components.

[0008] Preferably, the reset assembly includes a sliding ear, which is fixedly connected to the upper and lower sides of the stretching outer frame. The sliding ear is slidably connected to the buffer sliding column, the buffer sliding column is fixed to the connecting plate, and a buffer spring is provided on the outer side of the buffer sliding column. The two ends of the buffer spring are respectively fixed to the connecting plate and the sliding ear.

[0009] Preferably, the clamping mechanism comprises a clamping plate, which is slidably connected to the inside of the inner frame, and the top surface of the clamping plate is fixedly connected to an electric telescopic rod, and the top end of the electric telescopic rod is fixedly connected to the inner side of the inner frame.

[0010] Preferably, the unwinding mechanism comprises a paper roller, both ends of the paper roller are fixedly connected to roller shafts, the middle of the roller shaft is rotatably connected to a bearing seat, and the bottom end of the bearing seat is fixedly connected to the upper surface of the equipment platform.

[0011] Preferably, the unwinding mechanism further comprises a helical spring sheet, the middle portion of the helical spring sheet is fixedly connected to the roller shaft on one side, and the outer portion of the helical spring sheet is fixedly connected to the bearing seat on the same side.

[0012] The beneficial effect is that the cutter is cut downward by controlling the hydraulic cylinder. When the cutter descends, the two stretching outer frames are moved away from each other through the hinged stretching connecting rod, so that the insulating paper clamped in the stretching outer frame is stretched under the action of tension. At the same time, a buffer mechanism is provided in the stretching outer frame. After the insulating paper is stretched, the two stretching outer frames continue to move away from each other, keeping the distance between the two inner frames unchanged, so the clamping distance remains unchanged, avoiding the cutter descending to cause the insulating paper to continue to be pulled and destroy the internal stress.

[0013] The additional technical features and advantages of the present invention will be more clearly explained in the following description, or can be understood through the specific practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0015] Figure 1 This is a first schematic diagram of an insulating paper cutting device described in the utility model;

[0016] Figure 2 The utility model is an insulating paper cutting device Figure 1 A partial enlarged view of the middle part;

[0017] Figure 3 This is a second schematic diagram of an insulating paper cutting device according to the utility model;

[0018] Figure 4 It is a top view schematic diagram of an insulating paper cutting device described in the utility model.

[0019] The following are the descriptions of the reference numerals:

[0020] 1. Equipment platform; 21. Column; 22. Vertical sliding hole; 23. Horizontal plate; 24. Hydraulic cylinder; 25. Cutter; 26. Longitudinal slider; 27. Extension connecting rod; 28. Extension outer frame; 29. ​​Extension sliding beam; 31. Sliding ear; 32. Buffer sliding column; 33. Buffer spring; 34. Connecting plate; 35. Inner frame; 41. Electric telescopic rod; 42. Clamping plate; 51. Paper roller; 52. Roller shaft; 53. Bearing seat; 54. Helical spring sheet. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0023] The utility model is further described below in conjunction with the accompanying drawings:

[0024] like Figure 1 - Figure 4 As shown, an insulating paper cutting device comprises an equipment platform 1, and a stretching and cutting mechanism is provided on the upper surface of the equipment platform 1, the stretching and cutting mechanism comprises a horizontal plate 23, both ends of the horizontal plate 23 are fixedly connected with columns 21, the bottom ends of the columns 21 are fixedly connected to the upper surface of the equipment platform 1, a vertical sliding through hole 22 is opened in the middle of the column 21, a hydraulic cylinder 24 is fixedly connected to the bottom surface of the horizontal plate 23, a cutter 25 is fixedly connected to the bottom end of the hydraulic cylinder 24, both ends of the cutter 25 are fixedly connected with longitudinal sliders 26, the longitudinal slider 26 is slidably connected to the vertical sliding through hole 22, stretching connecting rods 27 are hinged on both sides of the top of the cutter 25, the bottom end of the stretching connecting rod 27 is hinged with a stretching outer frame 28, both ends of the stretching outer frame 28 are slidably connected with a stretching sliding beam 29, the stretching sliding beam 29 is fixedly connected to the upper surface of the equipment platform 1, a buffer mechanism is provided inside the stretching outer frame 28, a clamping mechanism is provided inside the buffer mechanism, and a reeling mechanism is provided on one side of the stretching and cutting mechanism.

[0025] The column 21 is used to connect the cross plate 23, and the cross plate 23 is used to install the hydraulic cylinder 24. The hydraulic cylinder 24 controls the descent of the cutter 25 by its own extension and retraction. The mutual sliding of the longitudinal slider 26 and the vertical sliding through hole 22 is used to maintain the stability of the cutter 25 when it descends. The stretching link 27 is hinged to the cutter 25, so that when the cutter 25 descends, the two stretching outer frames 28 move away from each other through the stretching link 27. The stretching sliding beam 29 is used to maintain the horizontal sliding of the two stretching outer frames 28. After cutting, the cutter 25 moves upward, and the two stretching outer frames 28 approach each other, which helps drive the end of the insulating paper left on the paper roll to approach the clamping mechanism on the other side, which is convenient for the next clamping and cutting.

[0026] The buffer mechanism includes an inner frame 35 slidably connected to the inner side of the stretched outer frame 28 , and the upper and lower sides of the inner frame 35 are fixedly connected with connecting plates 34 , and the upper and lower sides of the stretched outer frame 28 are provided with reset components.

[0027] The inner frame 35 is used for slidingly connecting and stretching the outer frame 28 and installing a clamping mechanism. The inner frame 35 is used for connecting the buffer spring 33 and the buffer sliding column 32 .

[0028] The reset assembly includes a sliding ear 31, which is fixedly connected to the upper and lower sides of the stretching outer frame 28. The sliding ear 31 is slidably connected to the buffer sliding column 32, and the buffer sliding column 32 is fixed to the connecting plate 34. A buffer spring 33 is provided on the outer side of the buffer sliding column 32, and the two ends of the buffer spring 33 are respectively fixed to the connecting plate 34 and the sliding ear 31.

[0029] The sliding ear 31 is used for slidingly connecting the buffer sliding column 32, and the buffer sliding column 32 is used to maintain the stability of the buffer spring 33. After the clamping mechanism clamps the insulating paper, it continues to pull the insulating paper to keep the relative position of the inner frame 35 unchanged, and the compression buffer spring 33 continues to be compressed to complete the cutting work.

[0030] The clamping mechanism includes a clamping plate 42 slidably connected to the inside of the inner frame 35 , a top surface of the clamping plate 42 is fixedly connected to an electric telescopic rod 41 , and a top end of the electric telescopic rod 41 is fixedly connected to the inner side of the inner frame 35 .

[0031] The clamping plate 42 cooperates with the inner frame 35 under the control of the electric telescopic rod 41 to clamp the insulating paper.

[0032] The unwinding mechanism comprises a paper roller 51 , both ends of the paper roller 51 are fixedly connected with roller shafts 52 , the middle of the roller shaft 52 is rotatably connected with a bearing seat 53 , and the bottom end of the bearing seat 53 is fixedly connected to the upper surface of the equipment platform 1 .

[0033] The paper roller 51 is used for winding and unwinding the insulating paper, the roller shaft 52 is used for keeping the paper roller 51 and the bearing seat 53 rotatable, and the bearing seat 53 is used for connecting the equipment platform 1 .

[0034] The unwinding mechanism further comprises a spiral spring sheet 54 , the middle portion of which is fixedly connected to the roller shaft 52 on one side, and the outer portion of the spiral spring sheet 54 is fixedly connected to the bearing seat 53 on the same side.

[0035] The spiral spring piece 54 is used to generate elastic potential energy when unwinding. With the repeated movement of the inner frame 35 and the stretching outer frame 28, the insulating paper will be pulled out. The elastic potential energy is used to prevent the insulating paper coil from loosening.

[0036] Working principle:

[0037] The cutter 25 is cut downward by controlling the hydraulic cylinder 24. When the cutter 25 descends, the two stretching outer frames 28 are moved away from each other through the hinged stretching link 27, so that the insulating paper clamped in the stretching outer frame 28 is stretched under the action of tension. At the same time, a buffer mechanism is provided in the stretching outer frame 28. After the insulating paper is stretched, the cutter 25 continues to descend due to cutting needs, and the two stretching outer frames 28 continue to move away from each other. Since the inner frame 35 and the stretching outer frame 28 maintain a sliding connection and due to the presence of the buffer spring 33, the distance between the two inner frames 35 remains unchanged, so the clamping distance remains unchanged, thereby avoiding the cutter 25 descending to cause the insulating paper to continue to be pulled and destroy the internal stress.

[0038] As the inner frame 35 gradually approaches the paper roller 51 , the elastic potential energy generated by the spiral spring sheet 54 causes the paper roller 51 to rotate and tighten the insulating paper to prevent the insulating paper from wrinkling.

[0039] After cutting is completed, the cutter 25 is lifted by controlling the hydraulic cylinder 24 so that the two stretching outer frames 28 are brought closer to each other to assist in guiding the end of the insulating paper left on the paper roll to the clamping mechanism on the other side, which is convenient for the next clamping and cutting.

[0040] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An insulating paper cutting device, comprising an equipment platform (1), Features: The upper surface of the equipment platform (1) is provided with a stretching and cutting mechanism, which comprises a horizontal plate (23), the two ends of the horizontal plate (23) are fixedly connected to the columns (21), the bottom end of the column (21) is fixedly connected to the upper surface of the equipment platform (1), a vertical sliding through hole (22) is opened in the middle of the column (21), the bottom surface of the horizontal plate (23) is fixedly connected to a hydraulic cylinder (24), the bottom end of the hydraulic cylinder (24) is fixedly connected to a cutting knife (25), and the two ends of the cutting knife (25) are fixedly connected to longitudinal slide blocks (26). ), the longitudinal slider (26) is slidably connected to the vertical sliding through hole (22), the top two sides of the cutting knife (25) are hinged with a stretching connecting rod (27), the bottom end of the stretching connecting rod (27) is hinged with a stretching outer frame (28), the two ends of the stretching outer frame (28) are slidably connected with a stretching sliding beam (29), the stretching sliding beam (29) is fixedly connected to the upper surface of the equipment platform (1), a buffer mechanism is provided inside the stretching outer frame (28), a clamping mechanism is provided inside the buffer mechanism, and a reeling mechanism is provided on one side of the stretching and cutting mechanism.

2. An insulating paper cutting device according to claim 1, Features: The buffer mechanism comprises an inner frame (35) which is slidably connected to the inner side of the extension outer frame (28); the upper and lower sides of the inner frame (35) are fixedly connected with connecting plates (34); and the upper and lower sides of the extension outer frame (28) are provided with reset components.

3. An insulating paper cutting device according to claim 2, Features: The reset assembly comprises a sliding ear (31), wherein the sliding ear (31) is fixedly connected to the upper and lower sides of the stretching outer frame (28), the sliding ear (31) is slidably connected to a buffer sliding column (32), the buffer sliding column (32) is fixedly connected to the connecting plate (34), a buffer spring (33) is provided on the outer side of the buffer sliding column (32), and the two ends of the buffer spring (33) are respectively fixedly connected to the connecting plate (34) and the sliding ear (31).

4. The insulating paper cutting device according to claim 2, Features: The clamping mechanism comprises a clamping plate (42), the clamping plate (42) being slidably connected to the interior of the inner frame (35), the top surface of the clamping plate (42) being fixedly connected to an electric telescopic rod (41), the top end of the electric telescopic rod (41) being fixedly connected to the inner side of the inner frame (35).

5. The insulating paper cutting device according to claim 1, Features: The unwinding mechanism comprises a paper roller (51), the two ends of the paper roller (51) are fixedly connected to a roller shaft (52), the middle part of the roller shaft (52) is rotatably connected to a bearing seat (53), and the bottom end of the bearing seat (53) is fixedly connected to the upper surface of the equipment platform (1).

6. An insulating paper cutting device according to claim 5, Features: The unwinding mechanism also includes a spiral spring sheet (54), the middle portion of the spiral spring sheet (54) is fixedly connected to the roller shaft (52) on one side, and the outer portion of the spiral spring sheet (54) is fixedly connected to the bearing seat (53) on the same side.

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