Insulation dispensing paper rewinding structure

Abstract

The utility model belongs to the technical field of rewinding equipment, and particularly discloses an insulation dispensing paper rewinding structure which comprises a bottom plate, main supporting frames and a paper pressing mechanism, the main supporting frames are symmetrically fixed to the upper end of the bottom plate, symmetrical first supporting columns are installed on the left side of the top of the bottom plate, annular bearing seats are arranged at the upper ends of the first supporting columns, and the paper pressing mechanism is arranged on the bottom plate. Unrolling rotating shafts are fixed in the bearing seats on the two sides, and paper rolls to be unrolled are mounted on the unrolling rotating shafts; second supporting columns are symmetrically arranged at the upper end, close to the right side, of the main supporting frame, a rewinding rotating shaft is longitudinally and movably installed at the upper ends of the second supporting columns, and a gear set is fixedly arranged on one side of the rewinding rotating shaft. A U-shaped frame is installed at the upper end of the rightmost side of the main supporting frame, two sets of installation plates are symmetrically arranged at the lower end of a cross beam of the U-shaped frame, and first paper pressing mechanisms are fixed to the installation plates; second paper pressing mechanisms are symmetrically arranged at the lower end of the left side of the main supporting frame and arranged above the paper placing rotating shaft.

Description

Technical Field

[0001] The utility model relates to the technical field of rewinding equipment, in particular to a rewinding structure for insulating dotting paper. Background Technique

[0002] The diamond-grid coated insulating paper is commonly known as dotting paper or diamond paper, and its English abbreviation is DDP. It is an insulating material made by coating a special modified epoxy resin in a diamond grid on an electrical insulating paper as the base material. Since the resin coating of the diamond dotting paper is in the shape of dots, it ensures the immersion of oil and the discharge of gas in the insulating material, effectively avoiding corona and partial discharge, thus ensuring the safety and reliability of the insulating structure. It is widely used in the turn insulation of the coil conductors of oil-immersed power transformers and the interlayer insulation of the coils of distribution transformers, and can also be used as a cable shielding isolation layer and an anti-corona material for high-voltage motors and electrical appliances. The rewinding mechanism is generally used for: rewinding and slitting mica tapes, papers, and films, playing a role of dividing one into two. It is often used for slitting wide-width coils, and also plays an important role in subsequent re-slitting. It is a special equipment for papers, mica tapes, and films. Its purpose is to rewind the paper rolls (called original paper rolls) produced by a paper machine in sequence, and the papers are made into finished papers and leave the factory after rewinding.

[0003] When the existing rewinding mechanism slits dotting paper, the dotting paper is placed on the unwinding mechanism. When the rewinding mechanism rewinds the dotting paper, since there is no external force to limit the dotting paper on the unwinding mechanism, the dotting paper is prone to slack during the winding process, affecting its rewinding effect. Content of the Utility Model

[0004] The purpose of the utility model is to provide a rewinding structure for insulating dotting paper to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A rewinding structure for insulating dotting paper, including a bottom plate, a main support frame, and a paper pressing mechanism. The main support frames are symmetrically fixed on the upper end of the bottom plate. On the left side of the top of the bottom plate, symmetric first support columns are installed. At the upper end of the first support columns, annular bearing seats are provided. The unwinding rotating shafts are fixed in the bearing seats on both sides, and the unwinding paper rolls to be unwound are installed on the unwinding rotating shafts. On the upper right side of the main support frame, symmetric second support columns are provided. The rewinding rotating shaft is longitudinally movably installed at the upper end of the second support columns, and a gear set is fixedly arranged on one side of the rewinding rotating shaft. At the upper right end of the main support frame, a U-shaped frame is installed. On the lower end of the cross beam of the U-shaped frame, two groups of mounting plates are symmetrically provided, and a first paper pressing mechanism is fixed on the mounting plates. On the lower left side of the main support frame, a second paper pressing mechanism is symmetrically provided, and the second paper pressing mechanism is arranged above the unwinding rotating shaft.

[0006] Preferably, a number of rotatable limiting shafts are arranged between the main support frames at both ends.

[0007] Preferably, the driven gear of the gear set is fixedly installed on the outer side wall of the rewinding rotating shaft, the driving gear of the gear set is connected to the output shaft of the driving motor, and the lower end of the driving motor is supported by a support plate.

[0008] Preferably, the first paper pressing mechanism includes a movable shaft disposed at the center between the mounting plates on one side. A support rod is mounted on the movable shaft. One end of the support rod is rotatably provided with a first paper pressing wheel. A first spring is fixedly provided above the end of the support rod close to the movable shaft, and the top end of the first spring is fixedly provided on the bottom surface of the cross beam of the U-shaped frame.

[0009] Preferably, the second paper pressing mechanism includes a fixed column. The inside of the fixed column is a hollow structure. A T-shaped rod penetrating the fixed column is disposed inside the fixed column. A rotating shaft is longitudinally mounted at the bottom end of the T-shaped rod. Second paper pressing wheels are fixedly mounted on both sides of the rotating shaft. A second spring is provided at the top end of the T-shaped rod. The lower end of the second spring is fixed on the top surface of the T-shaped rod, and the top surface of the second spring is fixed on the bottom surface of the main support frame.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: In the insulating dotting paper rewinding structure of the present utility model, by providing a second paper pressing mechanism at the unwinding rotating shaft, when the dotting paper roll is unwound by the unwinding rotating shaft, the second paper pressing wheel of the second paper pressing mechanism limits and presses the dotting paper, avoiding wrinkles in the dotting paper at the unwinding end and ensuring the compactness of the subsequent rewinding process; by providing a plurality of rotating limiting shafts between the main support plates, the rewinding movement position of the dotting paper is reasonably limited, and the dotting paper is also tensioned during the transition; by providing a first paper pressing mechanism at the upper end of the rewinding rotating shaft, the second paper pressing wheel ensures that the dotting paper is in a taut state during rewinding, and the rewound paper roll is not easily loosened, and the rewinding quality is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic structural diagram of the whole of the present utility model;

[0012] Figure 2 is a schematic cross-sectional structural diagram of the present utility model;

[0013] Figure 3 is a schematic structural diagram of the first paper pressing mechanism of the parts of the present utility model;

[0014] Figure 4 is a schematic structural diagram of the second paper pressing mechanism of the parts of the present utility model.

[0015] In the figure: 1, bottom plate; 2, main support frame; 3, first support column; 4, bearing seat; 5, unwinding rotating shaft; 6, second support column; 7, rewinding rotating shaft; 8, gear set; 9, driving motor; 10, U-shaped frame; 1001, mounting plate; 11, first paper pressing mechanism; 1101, movable shaft; 1102, support rod; 1103, first paper pressing wheel; 1104, first spring; 12, second paper pressing mechanism; 1201, fixed column; 1202, T-shaped rod; 1203, rotating shaft; 1204, second paper pressing wheel; 1205, second spring; 13, limiting shaft. Detailed implementation manner

[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0017] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is 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 orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0018] In the description of the present invention, it should also be noted that unless otherwise clearly defined and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0019] Please refer to Figures 1-4, the present utility model provides a technical solution: an insulating adhesive paper rewinding structure, including a bottom plate 1, a main support frame 2 and a paper pressing mechanism. The main support frame 2 is symmetrically fixed to the upper end of the bottom plate 1. On the left side of the top of the bottom plate 1, symmetric first support columns 3 are installed. At the upper end of the first support column 3, an annular bearing seat 4 is provided. A rewinding shaft 5 is fixedly placed in the bearing seats 4 on both sides. An unwinding paper roll to be processed is installed on the rewinding shaft 5. At the upper end of the main support frame 2 on the right side, second support columns 6 are symmetrically provided. A rewinding shaft 7 is longitudinally movably installed at the upper end of the second support column 6. On one side of the rewinding shaft 7, a gear set 8 is fixedly provided. At the upper end of the rightmost side of the main support frame 2, a U-shaped frame 10 is installed. At the lower end of the cross beam of the U-shaped frame 10, two groups of mounting plates 1001 are symmetrically provided. A first paper pressing mechanism 11 is fixed on the mounting plate 1001. At the lower end of the left side of the main support frame 2, a second paper pressing mechanism 12 is symmetrically provided. The second paper pressing mechanism 12 is arranged above the rewinding shaft 5.

[0020] Further, a plurality of rotatable limiting shafts 13 are provided between the main support frames 2 at both ends.

[0021] Further, the driven gear of the gear set 8 is fixedly installed on the outer side wall of the rewinding shaft 7. The driving gear of the gear set 8 is connected to the output shaft of the driving motor 9. The lower end of the driving motor 9 is supported by a support plate.

[0022] Further, the first paper pressing mechanism 11 includes a movable shaft 1101 provided at the center between the mounting plates 1001 on one side. A support rod 1102 is installed on the movable shaft 1101. At one end of the support rod 1102, a first paper pressing wheel 1103 is rotatably provided. Above the end of the support rod 1102 close to the movable shaft 1101, a first spring 1104 is fixedly provided. The top end of the first spring 1104 is fixedly provided on the bottom surface of the cross beam of the U-shaped frame 10.

[0023] Further, the second paper pressing mechanism 12 includes a fixed column 1201. The inside of the fixed column 1201 is a hollow structure. Inside the fixed column 1201, a T-shaped rod 1202 passing through the fixed column 1201 is provided. At the bottom end of the T-shaped rod 1202, a rotating shaft 1203 is longitudinally installed. On both sides of the rotating shaft 1203, second paper pressing wheels 1204 are fixedly installed. At the top end of the T-shaped rod 1202, a second spring 1205 is provided. The lower end of the second spring 1205 is fixed on the top surface of the T-shaped rod 1202. The top surface of the second spring 1205 is fixed on the bottom surface of the main support frame 2.

[0024] Working principle: The present utility model provides a rewinding structure for insulating adhesive tape. Specifically, during use, the unwind paper roll is installed at the center of the unwind rotating shaft 5, and then the leading end of the paper roll is drawn out through the limiting shaft 13 and fixed on the rewinding rotating shaft 7. Then, the driving motor 9 is started. The driving motor 9 drives the gear set 8 to rotate, and the gear set 8 drives the rewinding rotating shaft 7 to rotate for winding. During the winding process, the first pressing wheel 1103 of the first paper pressing mechanism 11 presses the adhesive tape tightly to ensure the tightness of the adhesive tape. As the rewound paper roll becomes larger and larger, the first spring 1104 contracts, and one end of the support rod 1102 moves upward, but still keeps the first pressing wheel pressing the adhesive tape tightly. As the rewound paper roll becomes larger, the unwind paper roll becomes smaller, and the second paper pressing mechanism 12 at the upper end of the unwind rotating shaft 5 acts. The second pressing wheel 1204 presses the adhesive tape at the unwind end. When the paper roll shrinks, the second spring 1205 originally in a compressed state in the fixed column 1201 expands, pushing the T-shaped rod 1202 downward to ensure that the second pressing wheel 1204 presses the adhesive tape tightly. The present utility model avoids the adhesive tape from becoming loose during the rewinding process and ensures the rewinding quality.

[0025] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An insulating glue paper rewinding structure, characterized in that: The invention comprises a bottom plate (1), a main support frame (2) and a paper pressing mechanism, wherein the main support frame (2) is symmetrically fixed to the upper end of the bottom plate (1), a symmetrical first support column (3) is installed on the left side of the top of the bottom plate (1), an annular bearing seat (4) is arranged on the upper end of the first support column (3), unwinding shafts (5) are fixed in the bearing seats (4) on both sides, and a paper roll to be unwound is installed on the unwinding shaft (5); a second support column (6) is symmetrically arranged on the upper right end of the main support frame (2), and the upper end of the second support column (6) is A rewinding shaft (7) is movably mounted on the end thereof in the longitudinal direction, and a gear set (8) is fixedly mounted on one side of the rewinding shaft (7); a U-shaped frame (10) is mounted on the upper right end of the main support frame (2), and two groups of mounting plates (1001) are symmetrically mounted on the lower end of the crossbeam of the U-shaped frame (10), and a first paper pressing mechanism (11) is fixed on the mounting plates (1001); a second paper pressing mechanism (12) is symmetrically mounted on the lower left end of the main support frame (2), and the second paper pressing mechanism (12) is arranged above the unwinding shaft (5).

2. The insulating glue-dotting paper rewinding structure according to claim 1, characterized in that: A plurality of rotatable limiting shafts (13) are arranged between the main support frames (2) at both ends.

3. The insulating glue-dotting paper rewinding structure according to claim 1, characterized in that: The driven gear of the gear set (8) is fixedly mounted on the outer side wall of the rewinding shaft (7), the transmission gear of the gear set (8) is connected to the output shaft of the driving motor (9), and a support plate is arranged at the lower end of the driving motor (9).

4. The insulating glue-dotting paper rewinding structure according to claim 1, characterized in that: The first paper pressing mechanism (11) comprises a movable shaft (1101) arranged at the center between the mounting plates (1001) on one side, a support rod (1102) is installed on the movable shaft (1101), a first paper pressing wheel (1103) is rotatably arranged at one end of the support rod (1102), a first spring (1104) is fixedly arranged above one end of the support rod (1102) close to the movable shaft (1101), and the top end of the first spring (1104) is fixedly arranged on the bottom surface of the crossbeam of the U-shaped frame (10).

5. The insulating glue-dotting paper rewinding structure according to claim 1, characterized in that: The second paper pressing mechanism (12) comprises a fixed column (1201), the interior of the fixed column (1201) is a hollow structure, a T-shaped rod (1202) penetrating the fixed column (1201) is arranged inside the fixed column (1201), a rotating shaft (1203) is longitudinally installed at the bottom end of the T-shaped rod (1202), and second paper pressing wheels (1204) are fixedly installed on both sides of the rotating shaft (1203), a second spring (1205) is arranged at the top end of the T-shaped rod (1202), the lower end of the second spring (1205) is fixed to the top surface of the T-shaped rod (1202), and the top surface of the second spring (1205) is fixed to the bottom surface of the main support frame (2).

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