Shredding returning mechanism
By introducing a roller rewinding module and a front guide module into the online cutting equipment, combined with the design of the rewinding and pressing module, the problems of unstable and loose molybdenum wire winding were solved, achieving stable and tight winding of molybdenum wire and improving the continuity and efficiency of processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUIZHOU HONGYAO INTELLIGENT EQUIPMENT CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-04-21
AI Technical Summary
The lack of an effective guiding mechanism during the molybdenum wire winding process in existing wire EDM equipment leads to wire swaying and deviation, as well as loose winding, which affects the continuity and stability of processing, increases the risk of breakage, occupies storage space, and increases operating costs.
A wire rewinding mechanism was designed, including a roller rewinding module, a front guide module, and a rewinding and pressing module. The front guide module provides stable guidance for the molybdenum wire, and the rewinding and pressing module applies auxiliary downward pressure during the winding process to ensure that the molybdenum wire is wound neatly and without loosening.
It improves the stability and tightness of molybdenum wire winding, reduces the risk of breakage, saves storage space, avoids knotting and jamming problems of molybdenum wire during the unwinding process, and improves the reliability and efficiency of wire EDM processing.
Smart Images
Figure CN224147402U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wire cutting equipment technology, specifically to a wire return mechanism. Background Technology
[0002] Wire EDM equipment, as a high-precision machining tool, is widely used in machining, mold manufacturing, and other fields. During wire EDM, the molybdenum wire serves as the electrode wire, and its operating condition and winding quality directly affect the machining accuracy and efficiency.
[0003] In existing wire EDM equipment, the molybdenum wire winding process presents several problems. Firstly, there is a lack of effective guiding mechanisms for the molybdenum wire before winding. Because molybdenum wire is typically thin and flexible, it is easily affected by external factors such as equipment vibration and airflow during its transport from the processing area to the winding device, leading to wire swaying and misalignment. This not only results in uneven winding during winding but may also cause localized stress concentration, increasing the risk of wire breakage and ultimately affecting the continuity and stability of the wire EDM process.
[0004] On the other hand, existing molybdenum wire winding devices struggle to ensure the tightness of the molybdenum wire winding during the winding process. If the molybdenum wire is not tightly wound, large gaps will exist between the turns. This not only occupies more storage space, but also makes the wire prone to knotting and jamming during subsequent unwinding, affecting normal processing. Furthermore, loose molybdenum wire rolls are easily damaged during transportation and handling, increasing operating costs. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a rewinding mechanism that solves the problems mentioned in the background section.
[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a rewinding mechanism, comprising a roller rewinding module, a front guide module, and a rewinding pressing module;
[0007] The front guide module is set in the infeed direction of the roller rewinding module and is used to stably guide the molybdenum wire that is about to be wound up.
[0008] The roller rewinding module is used to rewind the molybdenum wire exported by the pre-guided module. It rewinds the molybdenum wire at the bottom and releases the molybdenum wire at the top.
[0009] The rewinding and pressing die assembly is installed on the upper part of the roller rewinding die assembly and is used to apply auxiliary downward pressure during the molybdenum wire winding process to ensure that the molybdenum wire is wound neatly and without loosening.
[0010] Furthermore, the roller rewinding module includes a base, a speed reducer is mounted on the upper part of the base, a rewinding drive motor is mounted on one side of the speed reducer, the drive end of the rewinding drive motor is connected to the power input end of the speed reducer, and a roller is rotatably mounted on the other side of the speed reducer, with the power output end of the speed reducer connected to the roller.
[0011] Furthermore, the front guide module includes a base two, on the surface of the base two is an intermediate guide device, and on the surface of the base two and on both sides of the intermediate guide device are an inlet frame and an outlet frame respectively. An inlet tube is installed inside the inlet frame, and an outlet tube is installed inside the outlet frame. The inlet tube, the intermediate guide device, and the outlet tube are internally connected.
[0012] Furthermore, the intermediate guide device includes a base three mounted on the surface of the base two. A guide wheel is rotatably connected to the surface of the base three, and a base plate is also mounted on the front of the base three. A guide wheel groove is opened through the interior of the base plate, and a guide groove is reserved at the bottom of the base plate. The guide wheel groove is tangent to and communicates with the guide groove. A matching cover plate is mounted on the surface of the base plate.
[0013] Furthermore, the rewinding and pressing module includes a base four installed on the upper part of the roller rewinding module. A cylinder is installed on the upper part of the base four. The telescopic end of the cylinder faces upward and is connected to a lifting frame. A pressure roller is rotatably connected to the bottom end of the lifting frame. The pressure roller is located directly above the molybdenum wire winding section.
[0014] Furthermore, a linear guide rail is installed on the side of the base four, and the lifting frame is slidably connected to the linear guide rail to guide the stable movement of the lifting frame in the vertical direction.
[0015] This invention provides a wire rewinding mechanism. Compared with the prior art, it has the following advantages:
[0016] 1. This wire rewinding mechanism features a front-mounted guide module that provides stable guidance for the molybdenum wire about to be wound. The molybdenum wire enters through the inlet tube, contacts the guide wheel via the guide groove, and then exits through the outlet tube. During this process, the rotation of the guide wheel effectively reduces the friction between the molybdenum wire and the guiding device, ensuring the wire maintains straightness and stability during transmission and preventing swaying and deviation caused by external interference. Precise guidance ensures accurate positioning of the molybdenum wire when it enters the drum rewinding module, thereby guaranteeing neat winding, reducing uneven winding and stress concentration, lowering the risk of wire breakage, and improving the continuity and stability of wire EDM processing.
[0017] 2. The rewinding and pressing module plays a crucial role in the molybdenum wire winding process. Before the molybdenum wire is wound, the cylinder retracts, causing the lifting frame and pressure roller to move downwards, pressing the pressure roller onto the wound portion of the molybdenum wire, creating a slight downward pressure. This auxiliary downward pressure ensures that each turn of the molybdenum wire remains compact during winding, effectively solving the problem of loose winding in existing winding devices. Tight winding not only saves storage space but also avoids knots and jams during subsequent wire unwinding, improving the efficiency of molybdenum wire utilization, reducing operating costs, and enhancing the reliability and applicability of the wire EDM equipment. Attached Figure Description
[0018] Figure 1 This is a structural schematic diagram of the present invention from a frontal view;
[0019] Figure 2 This is a schematic diagram of the front guide module in this utility model;
[0020] Figure 3 This is a schematic diagram showing the disassembled structure of the intermediate guide device of this utility model;
[0021] Figure 4 This is a schematic diagram of the rewinding and pressing module in this utility model;
[0022] Figure 5 This is a schematic diagram of the structure of the roller rewinding module in this utility model;
[0023] Figure 6 This is a structural schematic diagram of the present invention from the rear view.
[0024] In the diagram: 1. Roller rewinding module; 11. Base 1; 12. Reducer; 13. Rewinding drive motor; 14. Roller; 2. Front guide module; 21. Base 2; 22. Intermediate guide device; 221. Base 3; 222. Guide wheel; 223. Base plate; 224. Guide wheel groove; 225. Guide groove; 226. Cover plate; 23. Inlet frame; 24. Outlet frame; 25. Outlet tube; 26. Inlet tube; 3. Rewinding and pressing module; 31. Base 4; 32. Cylinder; 33. Lifting frame; 34. Pressure roller; 35. Linear guide rail; 4. Molybdenum wire; 5. Molybdenum wire clamping mechanism. Detailed Implementation
[0025] 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.
[0026] Please see Figure 1-6 This utility model provides a technical solution: a wire rewinding mechanism, mainly comprising a roller rewinding module 1, a front guide module 2, and a rewinding and pressing module 3. The front guide module 2 is positioned in the wire feeding direction of the roller rewinding module 1 and is used to stably guide the molybdenum wire 4 that is about to be wound. The roller rewinding module 1 can rewind the molybdenum wire 4 led out by the front guide module 2, with the lower part winding the molybdenum wire 4 and the upper part releasing the molybdenum wire 4. The rewinding and pressing die 3 is installed on the upper part of the roller rewinding die 1. It can apply auxiliary downward pressure during the winding of molybdenum wire 4 to ensure that the molybdenum wire 4 is wound neatly and without loosening. The molybdenum wire clamping mechanism 5 is installed at the bottom of the back of the roller rewinding die 1. It mainly consists of a cylinder, a pressure plate installed on the telescopic end of the cylinder, and a clamping frame installed on the roller 14. The molybdenum wire clamping mechanism 5 can first press the molybdenum wire when the machine starts, and then release the cylinder. This way, the molybdenum wire will be tighter and will not loosen or shake during processing. The molybdenum wire clamping mechanism 5 is a commonly used structure in this field for fixing the end of molybdenum wire. Therefore, its specific structure and principle will not be described in detail here.
[0027] The roller rewinding module 1 includes a base 11, on the upper part of which a reducer 12 is mounted. A rewinding drive motor 13 is mounted on one side of the reducer 12, and the drive end of the rewinding drive motor 13 is connected to the power input end of the reducer 12. Power is provided by the rewinding drive motor 13, and after being reduced by the reducer 12, a suitable speed and torque are output. A roller 14 is rotatably mounted on the other side of the reducer 12, and the power output end of the reducer 12 is connected to the roller 14, thereby driving the roller 14 to rotate.
[0028] The front guide module 2 includes a base 21, on the surface of which an intermediate guide device 22 is mounted. An inlet frame 23 and an outlet frame 24 are respectively mounted on the surface of the base 21 and on either side of the intermediate guide device 22. An inlet tube 26 is installed inside the inlet frame 23, and an outlet tube 25 is installed inside the outlet frame 24. The inlet tube 26, the intermediate guide device 22, and the outlet tube 25 are internally connected to ensure that the molybdenum wire 4 can pass smoothly.
[0029] The intermediate guiding device 22 includes a base 3 221 mounted on the surface of base 21. A guide wheel 222 is rotatably connected to the surface of base 3 221, allowing the guide wheel 222 to rotate freely on base 3 221 to reduce friction of the molybdenum wire 4 during the guiding process. A base plate 223 is also mounted on the front of base 3 221. A guide wheel groove 224 is formed through the interior of base 223, and a guide groove 225 is pre-formed at the bottom of base 223. The guide wheel groove 224 and the guide groove 225 are tangential and connected. A matching cover plate 226 is mounted on the surface of base 223. The cover plate 226 protects the molybdenum wire 4 in the guide wheel groove 224 and the guide groove 225 from external interference.
[0030] The rewinding and pressing die assembly 3 includes a base 31 mounted on the upper part of the roller rewinding die assembly 1, and a cylinder 32 mounted on the upper part of the base 31. The telescopic end of the cylinder 32 faces upward and is connected to a lifting frame 33. The extension and retraction of the cylinder 32 can drive the lifting frame 33 to move up and down. The bottom end of the lifting frame 33 is rotatably connected to a pressure roller 34, which is located directly above the winding section of the molybdenum wire 4 and is used to apply downward pressure to the molybdenum wire 4. A linear guide rail 35 is mounted on the side of the base 31, and the lifting frame 33 is slidably connected to the linear guide rail 35 to ensure the stability and straightness of the lifting frame 33 during up and down movement.
[0031] During operation, the molybdenum wire 4 enters from the inside of the inlet tube 26 and then passes through the guide groove 225 and the outlet tube 25 in sequence. When passing through the guide groove 225, the molybdenum wire 4 comes into contact with the guide wheel 222. The rotation of the guide wheel 222 reduces the friction between the molybdenum wire 4 and the guide groove 225, ensuring the stability of the molybdenum wire 4's guidance. Finally, the molybdenum wire 4 is exited from the outlet tube 25. After exiting, the molybdenum wire 4 is wound around the surface of the roller 14. After several turns, the free end is led out from the roller 14.
[0032] During the rewinding process, the rewind drive motor 13 starts and drives the drum 14 to rotate via the reducer 12. As the drum 14 rotates, the bottom winds the molybdenum wire 4, while the top winds it out. This ensures that the number of turns of the molybdenum wire 4 on the surface of the drum 14 remains constant; that is, the amount wound at the bottom is the same as the amount unwound at the top.
[0033] Before the molybdenum wire 4 is wound, the cylinder 32 retracts, thereby pulling the lifting frame 33 and the pressure roller 34 downward along the direction of the linear guide rail 35 until the pressure roller 34 presses on the part of the molybdenum wire 4 that is wound, forming a slight downward pressure. In this way, the molybdenum wire 4 remains compact and not loose between each turn during winding, thus ensuring that the molybdenum wire 4 is wound neatly.
Claims
1. A flyback mechanism characterized by, It includes a roller rewinding module (1), a front guide module (2), and a rewinding and pressing module (3); The front guide module (2) is set in the infeed direction of the roller rewinding module (1) and is used to stably guide the molybdenum wire that is about to be wound. The roller rewinding module (1) is used to rewind the molybdenum wire out of the pre-guided module (2), with the lower part rewinding the molybdenum wire and the upper part releasing the molybdenum wire; The rewinding and pressing die group (3) is installed on the upper part of the roller rewinding die group (1) and is used to apply auxiliary downward pressure during the molybdenum wire winding process to ensure that the molybdenum wire is wound neatly and not loose.
2. A flyback mechanism according to claim 1, wherein The roller rewind module (1) includes a base (11), a speed reducer (12) is installed on the upper part of the base (11), a rewind drive motor (13) is installed on one side of the speed reducer (12), the drive end of the rewind drive motor (13) is connected to the power input end of the speed reducer (12), and a roller (14) is rotatably arranged on the other side of the speed reducer (12), and the power output end of the speed reducer (12) is connected to the roller (14).
3. A flyback mechanism according to claim 1, wherein The front guide module (2) includes a base two (21), on the surface of the base two (21) is an intermediate guide device (22), and on the surface of the base two (21) and on both sides of the intermediate guide device (22) are an inlet frame (23) and an outlet frame (24), respectively. An inlet tube (26) is installed inside the inlet frame (23), and an outlet tube (25) is installed inside the outlet frame (24). The inlet tube (26), the intermediate guide device (22), and the outlet tube (25) are internally connected.
4. A flyback mechanism according to claim 3, wherein The intermediate guide device (22) includes a base three (221) mounted on the surface of the base two (21). A guide wheel (222) is rotatably connected to the surface of the base three (221), and a base plate (223) is also mounted on the front of the base three (221). A guide wheel groove (224) is opened through the interior of the base plate (223), and a guide groove (225) is reserved at the bottom of the base plate (223). The guide wheel groove (224) is tangent to and connected to the guide groove (225). A matching cover plate (226) is installed on the surface of the base plate (223).
5. A flyback mechanism according to claim 1, wherein The rewinding and pressing module (3) includes a base four (31) installed on the upper part of the roller rewinding module (1). A cylinder (32) is installed on the upper part of the base four (31). The telescopic end of the cylinder (32) is upward and connected to the lifting frame (33). The bottom end of the lifting frame (33) is rotatably connected to a pressure roller (34). The pressure roller (34) is located directly above the molybdenum wire winding section.
6. A flyback mechanism according to claim 5, wherein, A linear guide rail (35) is installed on the side of the base four (31), and the lifting frame (33) is slidably connected to the linear guide rail (35) to guide the stable movement of the lifting frame (33) in the vertical direction.