Cutter assembly for paper cutter

Abstract

The utility model discloses a cutter component for a paper cutter, which comprises a mounting frame, two parallel screws are arranged on the mounting frame, an adjusting plate is movably sleeved on the screws, a cutter is rotatably arranged at the lower end of the side surface of the adjusting plate, a driving shaft is rotatably arranged on the mounting frame, and a driving shaft is rotatably arranged on the driving shaft. The driving shaft is movably sleeved with transmission pieces arranged in one-to-one correspondence with the cutters. According to the cutter assembly for the paper cutter, the appropriate number of cutters can be selected for cutting according to the width of insulation paper needing to be cut off, the distance between every two adjacent cutters can be adjusted according to the size of a transformer, the cut insulation paper can be matched with the transformer for use, the cutter adjusting flexibility is high, operation is easy, and the application range is wide.

Description

Technical Field

[0001] This utility model relates to the technical field of transformer production equipment, specifically a cutting blade assembly for a paper cutter. Background Technology

[0002] Transformer insulating paper is an important insulating material used in power transformers, possessing excellent electrical properties and mechanical strength. It serves as an insulator between the transformer windings and the core, ensuring the normal operation and safety of the transformer.

[0003] Transformer insulation paper needs to be cut according to the transformer model and size before use to ensure a proper match. Currently, the common method for cutting is using a slitting machine. Existing slitting machines have a cutting structure where several cutters are mounted on a drive shaft. During cutting, unused cutters are slid to one side of the drive shaft, and the spacing of the remaining cutters is adjusted. However, when the width of the insulation paper roll is large, causing the cutters to remain in contact with the paper regardless of their movement, it becomes impossible to adjust the effective number of cutters or the width of insulation paper to be cut. Therefore, this type of cutting structure can only cut narrow insulation paper, offering limited flexibility in cutter adjustment and restricting its application range. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a cutting blade assembly for a paper cutter. It can select an appropriate number of cutters to cut the insulation paper according to the required width. It can also adjust the distance between two adjacent cutters according to the transformer size so that the cut insulation paper can be used with the transformer. The cutter adjustment is highly flexible, the operation is simple, and the application range is wide, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cutting blade assembly for a paper cutter, including a mounting frame, two parallel screws on the mounting frame, an adjusting plate movably sleeved on the screws, a cutting blade rotatably mounted on the lower side of the adjusting plate, a drive shaft rotatably mounted on the mounting frame, and a transmission component movably sleeved on the drive shaft corresponding to the cutting blade.

[0006] As a preferred embodiment of this utility model, the side of the adjusting plate is provided with a vertically arranged adjusting hole, and the screw is movably inserted into the adjusting hole, and a nut for locking and positioning the adjusting plate is threaded onto the screw.

[0007] As a preferred embodiment of this utility model, the lower side of the adjusting plate is provided with a fixed shaft, and a secondary pulley that drives the transmission component is rotatably mounted on the fixed shaft.

[0008] As a preferred embodiment of the present invention, the transmission component includes a main pulley movably sleeved on the drive shaft, and the main pulley and the auxiliary pulley are connected by belt drive.

[0009] As a preferred technical solution of this utility model, the side of the main pulley is provided with a sliding sleeve that is movably sleeved on the drive shaft, and the screw hole on the side of the sliding sleeve is threaded with a fastening bolt.

[0010] As a preferred embodiment of this utility model, one end of the drive shaft is provided with a transmission pulley.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] The paper cutter assembly of this utility model can select an appropriate number of cutters to cut the insulation paper according to the required width. It can also adjust the distance between two adjacent cutters according to the transformer size so that the cut insulation paper can be used with the transformer. The cutter adjustment is highly flexible, the operation is simple, and the application range is wide. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a partial structural schematic diagram of the present invention;

[0015] Figure 3 for Figure 1 A schematic diagram of the left-side view structure;

[0016] Figure 4 for Figure 3 A front view structural diagram;

[0017] Figure 5 for Figure 3 A side view structural diagram.

[0018] In the diagram: 1. Mounting bracket, 2. Screw, 21. Nut, 3. Adjusting plate, 31. Adjusting hole, 32. Fixed shaft, 4. Cutter, 41. Secondary pulley, 5. Drive shaft, 6. Main pulley, 61. Sliding sleeve, 62. Fastening bolt, 7. Belt, 8. Transmission pulley. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-5 This utility model provides a technical solution: a paper cutter assembly, including a mounting frame 1, two parallel screws 2 on the mounting frame 1, and an adjusting plate 3 movably sleeved on the screws 2. A cutter 4 is rotatably mounted on the lower side of the adjusting plate 3. A drive shaft 5 is rotatably mounted on the mounting frame 1, and a transmission component corresponding to the cutter 4 is movably sleeved on the drive shaft 5. The drive shaft 5 drives the cutter 4 to rotate through the transmission component, and the cutter 4 cuts the insulating paper.

[0021] Furthermore, the side of the adjusting plate 3 is provided with a vertically arranged adjusting hole 31, and the screw 2 is movably inserted into the adjusting hole 31. The screw 2 is threaded with a nut 21 for locking and positioning the adjusting plate 3. The adjusting plate 3 is moved along the screw 2 to adjust the distance between two adjacent cutters 4. Then, the adjusting plate 3 corresponding to the unwanted cutter 4 is pulled up. The adjusting plate 3 drives the cutter 4 to move up through the fixed shaft 32. Then, the nut 21 is rotated to lock the adjusting plate 3. At this time, the bottom of the cutter 4 after moving up cannot cut the insulating paper. The number of cutters 4 at the lower position is the effective cutter 4.

[0022] Furthermore, a fixed shaft 32 is provided at the lower side of the adjusting plate 3, and a secondary pulley 41 that is rotatably mounted on the fixed shaft 32 is connected to the transmission component.

[0023] Furthermore, the transmission component includes a main pulley 6 movably mounted on the drive shaft 5. The main pulley 6 and the auxiliary pulley 41 are connected by a belt 7. The drive shaft 5 drives the main pulley 6 to rotate, and the main pulley 6 drives the auxiliary pulley 41 to rotate via the belt 7. The auxiliary pulley 41 drives the cutter 4 to rotate.

[0024] Furthermore, the side of the main pulley 6 is provided with a sliding sleeve 61 that is movably sleeved on the drive shaft 5. The screw hole on the side of the sliding sleeve 61 is threaded with a fastening bolt 62. The adjusting plate 3 is moved along the screw 2, and the main pulley 6 is moved synchronously along the drive shaft 5, thereby adjusting the distance between two adjacent cutters 4 and two adjacent main pulleys 6. Then, the nut 21 is rotated to fix the adjusting plate 3, and the fastening bolt 62 is rotated to fix the sliding sleeve 61.

[0025] Furthermore, a transmission pulley 8 is provided at one end of the drive shaft 5. An external drive device drives the transmission pulley 8 to rotate, the transmission pulley 8 drives the drive shaft 5 to rotate, and the drive shaft 5 drives the cutter 4 to rotate through the transmission component. The cutter 4 cuts the insulating paper.

[0026] When using:

[0027] Select the appropriate number of cutters 4 according to the required width and quantity of the insulation paper, and adjust the distance between two adjacent cutters 4;

[0028] 1. Method for adjusting the effective number of cutters 4:

[0029] Pull up the adjustment plate 3 corresponding to the unnecessary cutter 4. The adjustment plate 3 drives the cutter 4 to move upward through the fixed shaft 32. Then rotate the nut 21 to lock the adjustment plate 3. At this time, the bottom of the cutter 4 after moving upward cannot cut the insulating paper. The number of cutters 4 at the lower position is the effective cutter 4.

[0030] 2. Adjustment method for the spacing between the four cutting blades:

[0031] Move the adjusting plate 3 along the screw 2 and move the main pulley 6 synchronously along the drive shaft 5 to adjust the distance between two adjacent cutters 4 and two adjacent main pulleys 6. Then rotate the nut 21 to fix the adjusting plate 3 and rotate the fastening bolt 62 to fix the sliding sleeve 61.

[0032] 3. By combining steps 1 and 2, the effective number of cutters 4 and the spacing between two adjacent effective cutters 4 can be determined.

[0033] 4. During operation, the external drive device drives the transmission pulley 8 to rotate, the transmission pulley 8 drives the drive shaft 5 to rotate, the drive shaft 5 drives the main pulley 6 to rotate, the main pulley 6 drives the auxiliary pulley 41 to rotate through the belt 7, the auxiliary pulley 41 drives the cutter 4 to rotate, and the effective cutter 4, which is located at the lower position, cuts the insulating paper.

[0034] This invention allows for the selection of an appropriate number of cutters 4 to cut the insulating paper according to the required width. It also allows for the adjustment of the distance between two adjacent cutters 4 according to the transformer size, so that the cut insulating paper can be used to match the transformer. The cutter 4 has high flexibility in adjustment, is easy to operate, and has a wide range of applications.

[0035] The parts not disclosed in this utility model are all prior art, and their specific structures, materials, and working principles will not be described in detail. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cutting knife assembly for a paper cutter comprising a mounting frame (1), characterized in that: The mounting frame (1) is provided with two parallel arranged screw rods (2), and the screw rod (2) is movably sleeved with an adjusting plate (3), the side lower end of the adjusting plate (3) is rotatably provided with a cutter (4), the mounting frame (1) is rotatably provided with a driving shaft (5), and the driving shaft (5) is movably sleeved with a transmission member corresponding to the cutter (4).

2. The cutter assembly for a paper cutter of claim 1, wherein: The side of the adjusting plate (3) is provided with a vertically arranged adjusting hole (31), and the screw rod (2) is movably inserted into the adjusting hole (31), and the screw rod (2) is threadedly connected with a nut (21) for locking and positioning the adjusting plate (3).

3. The cutter assembly of claim 1 wherein: The lower end of the side of the adjusting plate (3) is provided with a fixed shaft (32), and the fixed shaft (32) is rotatably provided with a secondary belt pulley (41) driven by the transmission member.

4. The cutter assembly of claim 3 wherein: The transmission member comprises a primary belt pulley (6) movably sleeved on the driving shaft (5), and the primary belt pulley (6) and the secondary belt pulley (41) are drivingly connected through a belt (7).

5. The cutter assembly of claim 4 wherein: The side of the primary belt pulley (6) is provided with a sliding sleeve (61) movably sleeved on the driving shaft (5), and the sliding sleeve (61) is threadedly connected with a fastening bolt (62) in the screw hole on the side.

6. The cutter assembly of claim 1 wherein: One end of the driving shaft (5) is provided with a transmission belt pulley (8).

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