Counter-tension structure of a transformer axial winding apparatus

Abstract

A kind of anti-tension structure of transformer axial winding equipment, comprising: air cylinder, connecting block, mounting block and brake friction block, air cylinder is vertically arranged between adhesive tape roll and guide roller, air cylinder is connected with connecting block, connecting block is connected with mounting block by bolt, brake friction block is arranged on mounting block, brake friction block is polyurethane elastic material, brake friction block is connected with adhesive tape.Compared with prior art, by the newly added brand new anti-tension structure, the dynamic removal and application of tension are realized, the unstable problem caused by the viscosity change of adhesive tape is solved, and the production efficiency and adhesive tape wrapping quality of equipment are significantly improved.

Description

Technical Field

[0001] This utility model relates to the field of transformers, and specifically to a counter-tension structure for transformer shaft winding equipment. Background Technology

[0002] In the process of wrapping transformer coils with tape in transformer shaft winding equipment, the stability of tape supply is crucial to the reliability of the equipment. Existing tape supply mechanisms often use simple passive friction damping or fixed brakes to provide counter-tension and prevent the tape from loosening.

[0003] However, this method has a significant drawback: when the tape viscosity is high or environmental factors increase the interlayer adhesion, the fixed damping force is insufficient to overcome the tape roll's own "starting force" and the viscous resistance during separation. This can cause the tape pulling mechanism to "not be able to pull," leading to a series of problems such as the tape not being pulled out, insufficient length, or the robot arm "not being able to grip" or "not being able to wrap," resulting in production interruptions and defective products.

[0004] To address the aforementioned issues, we have made a series of improvements. Utility Model Content

[0005] The purpose of this invention is to provide a counter-tension structure for transformer shaft winding equipment to overcome the above-mentioned shortcomings and deficiencies of the prior art.

[0006] A counter-tension structure for a transformer shaft winding device includes: a cylinder, a connecting block, a mounting block, and a braking friction block. The cylinder is vertically disposed between the tape roll and the guide roller. The cylinder is connected to the connecting block. The connecting block is connected to the mounting block by bolts. The mounting block is provided with a braking friction block, which is made of polyurethane elastic material and is connected to the tape.

[0007] The beneficial effects of this utility model are:

[0008] Compared with traditional technologies, this invention achieves dynamic tension release and application through a newly added anti-tension structure, solving the problem of unstable supply caused by changes in tape viscosity, and significantly improving equipment production efficiency and tape wrapping quality. Attached image description:

[0009] Figure 1 This is a schematic diagram of the structure of this utility model.

[0010] Figure 2 This is a diagram showing the usage state of this utility model.

[0011] Figure label:

[0012] Cylinder 100, connecting block 200, mounting block 300 and brake friction block 400. Detailed Implementation

[0013] The present invention will be further described below with reference to specific embodiments. It should be understood that the following embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0014] Example 1

[0015] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 2 This is a diagram showing the usage state of this utility model.

[0016] like Figure 1-2 As shown, a counter-tension structure for a transformer shaft winding device includes: a cylinder 100, a connecting block 200, a mounting block 300, and a braking friction block 400. The cylinder 100 is vertically disposed between the conveyor belt and the guide roller. The cylinder 100 is connected to the connecting block 200. The connecting block 200 is connected to the mounting block 300 by bolts. The mounting block 300 is provided with the braking friction block 400, which is made of polyurethane elastic material and is connected to the conveyor belt.

[0017] The working principle of this utility model: Initial or taut state: When the equipment is not performing the tape pulling action, the cylinder rod of cylinder 100 is in the extended state. The driving brake friction block 400 presses the tape downward, providing sufficient frictional resistance, i.e., counter-tension, to prevent the tape roll from loosening and to keep the pulled tape taut.

[0018] In the belt pulling and unloading state: Just before the belt pulling mechanism begins to operate, the control system sends a signal to cylinder 100, causing its cylinder rod to retract rapidly. The brake friction block 400 then moves upward, quickly disengaging from the belt or significantly reducing pressure. At this moment, the counter-tension acting on the belt roll is instantly released. The belt pulling mechanism only needs to overcome the adhesive forces between the belt layers to easily pull the belt out, completely solving the "cannot be pulled" problem.

[0019] Tension is restored immediately after the tape is pulled out: After the tape has been pulled out to the predetermined length, before the cutting and pasting actions, the cylinder rod of cylinder 100 quickly extends again, driving the brake friction block 400 to press down and reapply braking resistance to the tape roll. This action instantly tightens the slack tape that has been pulled out, providing the necessary conditions for subsequent clean cutting and stable pasting, thus solving the problem of "not being able to clamp or wrap".

[0020] The core principle of this invention is the active control logic of "providing tension on demand." It breaks away from the traditional mindset of fixed damping, cleverly resolving the contradiction between "fixed resistance" and "variable viscosity" by transforming the counter-tension from a constant value into a dynamic variable synchronized with the equipment's operating rhythm. Polyurethane material, due to its moderate coefficient of friction and elasticity, can provide effective resistance without damaging the tape surface, making it an ideal actuator material for achieving this active control.

[0021] Compared with traditional technologies, this invention achieves dynamic tension release and application through a newly added anti-tension structure, solving the problem of unstable supply caused by changes in tape viscosity, and significantly improving equipment production efficiency and tape wrapping quality.

[0022] The specific embodiments of this utility model have been described above, but this utility model is not limited thereto. Various changes can be made to this utility model as long as they do not depart from its spirit.

Claims

1. A counter-tension structure for a transformer shaft winding device, characterized in that, include: The device comprises a cylinder (100), a connecting block (200), a mounting block (300), and a braking friction block (400). The cylinder (100) is vertically disposed between the conveyor belt roll and the guide roller. The cylinder (100) is connected to the connecting block (200). The connecting block (200) is connected to the mounting block (300) by bolts. The mounting block (300) is provided with a braking friction block (400). The braking friction block (400) is made of polyurethane elastic material and is connected to the conveyor belt.

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