Wire feeding mechanism

Abstract

According to the wire feeding mechanism, a wire feeding module comprises at least one wire feeding wheel set, each wire feeding wheel set is composed of an upper wire feeding wheel and a lower wire feeding wheel which are alternately arranged up and down, and annular grooves used for containing winding wires are formed in the upper wire feeding wheels and the lower wire feeding wheels correspondingly; a wire feeding channel used for clamping and conveying winding wires is formed between the upper wire feeding wheel and the lower wire feeding wheel. The auxiliary supporting module is arranged at the wire outlet end of the wire feeding module and comprises a lifting ejector block and an auxiliary motor for driving the ejector block, and the upper surface of the ejector block makes contact with the winding wire and provides support; the wire feeding module further comprises an elastic pressing assembly which enables the upper wire feeding wheel and the lower wire feeding wheel to press the winding wire in a self-adaptive mode. The auxiliary supporting module further comprises a limiting pipe, and the limiting pipe is fixedly installed through a pipe base and used for conducting final guiding and positioning on the winding wire. Winding wires are clamped and conveyed through the annular grooves in the upper wire feeding wheel and the lower wire feeding wheel, wire feeding, extruding and straightening are carried out on the winding wires, and synchronism and continuity of wire feeding and straightening actions are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of wire feeding mechanism technology, specifically to a wire feeding mechanism. Background Technology

[0002] In industrial production, automated wire feeding mechanisms are widely used in bundling, weaving, welding, 3D printing, and composite material laying (such as carbon fiber). The core function of the wire feeding mechanism is to achieve continuous, stable, and precise delivery of wires (metal wires, polymer wires, fiber filaments, etc.), and its performance directly affects the quality of the final product and production efficiency.

[0003] The existing wire feeding mechanism has the following main technical defects: 1. Many existing devices use independent straightening roller sets or straightening modules, separate from the wire feeding mechanism. For example, bending correction is achieved through multiple fixed rollers, but such structures are difficult to adapt to wires of different diameters or materials, easily leading to incomplete straightening or overstretching. Residual bending stress in the wire can cause offset, vibration, or tangling during subsequent transport, easily resulting in internal damage or breakage.

[0004] 2. After leaving the wire feeding wheel, the wire is prone to sagging, warping, or vibration due to its own weight, elasticity, or inertia, especially during long-distance transport. Existing technologies mostly use fixed guide rings or pipes for passive guidance, which cannot adapt to changes in the shape of the wire in real time. This results in inaccurate positioning when entering the next station (such as the winding head or nozzle), affecting process accuracy.

[0005] Therefore, there is an urgent need for a wire feeding mechanism that integrates wire feeding, straightening, and support, has adaptive clamping and dynamic posture adjustment capabilities, and can be flexibly applied as an independent module. Summary of the Invention

[0006] To address the existing problems, the present invention provides a wire feeding mechanism to solve the aforementioned problems.

[0007] A wire feeding mechanism includes: a wire feeding module and an auxiliary support module; The wire feeding module includes at least one wire feeding wheel group, which consists of an upper wire feeding wheel and a lower wire feeding wheel arranged alternately. Both the upper wire feeding wheel and the lower wire feeding wheel have annular grooves for accommodating the winding wire, and a wire feeding channel for clamping and conveying the winding wire is formed between the upper wire feeding wheel and the lower wire feeding wheel. The auxiliary support module is located at the wire outlet end of the wire feeding module, and includes a liftable top block and an auxiliary motor for driving the top block. The upper surface of the top block contacts the winding wire and provides support. The wire feeding module also includes an elastic clamping component, which enables the upper wire feeding wheel and the lower wire feeding wheel to adaptively clamp the wound wire; The auxiliary support module also includes a limiting tube, which is fixedly installed by a tube seat and is used to guide and position the winding wire in the final stage.

[0008] In one possible implementation, the elastic clamping assembly includes a compression spring and a slide groove. The lower wire feeding wheel is slidably connected to the slide groove via a lower wire feeding frame. The compression spring is disposed within the slide groove, so that the lower wire feeding wheel always has a tendency to press against the upper wire feeding wheel.

[0009] In one possible implementation, the elastic pressing assembly includes a compression spring and a slide groove (16), the lower wire feeding wheel is slidably connected to the slide groove via a lower wire feeding frame, and the compression spring is disposed in the slide groove so that the lower wire feeding wheel always has a tendency to press against the upper wire feeding wheel.

[0010] In one possible implementation, the upper surface of the top block is an arc-shaped concave surface, the curvature of which matches the outer diameter of the winding wire.

[0011] In one possible implementation, the limiting tube includes a plurality of replaceable guide sleeves, the inner diameter of which is selected according to the diameter of the winding wire and is fixed to the tube seat by a threaded connection.

[0012] In one possible implementation, the wire feeding module includes two or more sets of wire feeding wheels, each set of which is arranged sequentially along the wire feeding direction, and the width of the annular groove of the wire feeding wheel set gradually decreases to achieve step-by-step straightening and compression winding of the wire.

[0013] In one possible implementation, the inner surfaces of the annular grooves of the upper and lower wire feeding wheels are provided with staggered anti-slip patterns, including axial and circumferential patterns, forming a grid-like friction surface to enhance the clamping force on the wound wire.

[0014] Compared with the prior art, the present invention has the following advantages: 1. The winding wire is clamped and conveyed by the annular grooves on the upper and lower wire feeding wheels, thereby achieving wire feeding, compression and straightening, ensuring the synchronicity and continuity of wire feeding and straightening actions; 2. The auxiliary mechanism provides further support and guidance for the winding wire to prevent it from bending again due to its own weight or inertia, ensuring that the winding wire can enter the subsequent process in a straight state. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the wire feeding module of the present invention; Figure 3This is a schematic diagram of the upper or lower wire feeding wheel of the present invention; Figure 4 This is a schematic diagram of the auxiliary support module of the present invention. Detailed Implementation

[0016] The embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.

[0017] The following specific examples illustrate the implementation of this disclosure. Those skilled in the art can easily understand other advantages and effects of this disclosure from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of them. This disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this disclosure. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0018] It should be noted that various aspects of the embodiments described below are within the scope of the appended claims. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this disclosure, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any of the aspects set forth herein can be used to implement a solar cell structure and / or method. Additionally, this solar cell structure and / or method can be implemented using other structures and / or functionalities besides one or more of the aspects set forth herein.

[0019] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this disclosure. The illustrations only show the structures related to this disclosure and are not drawn according to the actual number, shape and size of the structures in the actual implementation. In the actual implementation, the form, quantity and proportion of each structure can be arbitrarily changed, and its structural layout may also be more complex.

[0020] Furthermore, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the described aspects can be practiced without these specific details.

[0021] In this invention, the winding filament can be metal wire, carbon fiber, or textile filament, etc. The material of the components of the wire feeding mechanism can be changed according to the material of the winding filament. For example, when using metal wire, metal wire feeding wheels and top blocks are used, while when using carbon fiber or textile filament, polymer wire feeding wheels and top blocks are used.

[0022] The wire feeding mechanism of the present invention will be described in detail below. Please refer to [link / reference]. Figure 1 - Figure 4 A wire feeding mechanism includes: a wire feeding module 1 and an auxiliary support module 2; The wire feeding module 1 includes at least one wire feeding wheel assembly, which consists of an upper wire feeding wheel 11 and a lower wire feeding wheel 12 arranged alternately. Both the upper wire feeding wheel 11 and the lower wire feeding wheel 12 have annular grooves 111 for accommodating the wound wire. A wire feeding channel 13 for clamping and conveying the wound wire is formed between the upper wire feeding wheel 11 and the lower wire feeding wheel 12. The upper wire feeding wheel 11 is fixed on the upper wire feeding frame 14. The auxiliary support module 2 is disposed at the wire outlet end of the wire feeding module 1, and includes a liftable top block 21 and an auxiliary motor 22 for driving the top block 21. The upper surface of the top block 21 contacts the winding wire and provides support. The wire feeding module also includes an elastic clamping component, which enables the upper wire feeding wheel 11 and the lower wire feeding wheel 12 to adaptively clamp the winding wire. The auxiliary support module also includes a limiting tube 23, which is fixedly installed through a tube seat 24 and is used for final guidance and positioning of the winding wire.

[0023] This invention utilizes an alternating upper and lower arrangement of the wire feeding wheel assembly and an annular groove design to achieve clamping, conveying, and initial straightening of the wound wire. The elastic clamping component ensures adaptive clamping, accommodating materials of different diameters or with dimensional fluctuations. The auxiliary support module provides precise support and guidance through a liftable top block and limiting tube, preventing material bending or displacement. The overall structure is independent of the binding machine and can be used as a universal wire feeding device in various industrial scenarios. The width of the wire feeding channel is adjustable from 0.5 to 3 mm, suitable for wound wires with diameters of 0.1 to 2.5 mm. The lifting stroke of the auxiliary support module is 10 to 50 mm, and precise position control can be achieved through an encoder on a linear motor.

[0024] The elastic clamping assembly includes a compression spring 17 and a slide groove 16. The lower wire feeding wheel 12 is slidably connected to the slide groove 16 via a lower wire feeding frame 15. The compression spring 17 is disposed within the slide groove 16, ensuring that the lower wire feeding wheel 12 always tends to press against the upper wire feeding wheel 11. The compression spring provides a constant clamping force to prevent wire slippage or material damage; the slide groove structure ensures the stability of the vertical movement of the lower wire feeding wheel and prevents skew.

[0025] The auxiliary motor 22 is a linear motor. Its drive shaft is inserted into the cylindrical through-hole of the top block 21, driving the top block 21 to move vertically to accommodate winding wires of different diameters. The upper surface of the top block 21 is a concave arc surface, the curvature of which matches the outer diameter of the winding wire. This concave arc surface matches the material curvature, and the arc surface can be coated with polyurethane, effectively preventing scratches on the winding wire and reducing stress concentration, thus providing effective protection for the winding wire.

[0026] To accommodate winding wires of different diameters and sizes, the limiting tube 23 includes multiple replaceable guide sleeves. The inner diameter of the guide sleeves is selected according to the diameter of the winding wire and is fixed to the tube seat 24 by threaded connection. Different sleeves can accommodate winding wires of different sizes.

[0027] Furthermore, the wire feeding module 1 includes two or more sets of wire feeding rollers, each set arranged sequentially along the wire feeding direction, with the width of the annular groove 111 of the rollers gradually decreasing to achieve progressive straightening and compression of the winding wire. The decreasing width of the annular grooves in multiple sets of wire feeding rollers (e.g., 1.5mm for the first set, 1.0mm for the second, and 0.6mm for the third) gradually eliminates bending of the winding wire material. Specifically, the upstream wire feeding roller set provides coarse adjustment to the bending of the winding wire, ensuring it is output relatively straight from the output end of the first set. Subsequent sets further restrict the path of the winding wire, ensuring that the wire output from the output end of the downstream set is straight and unbent. Using multiple sets of wire feeding rollers allows for gradual correction of the bending of metal wires with high curvature, compared to using a single set. This ensures the straightness of the winding wire output by the wire feeding mechanism of this invention and improves subsequent winding efficiency and quality.

[0028] The inner surfaces of the annular grooves 111 of the upper wire feeding wheel 11 and the lower wire feeding wheel 12 are provided with staggered anti-slip patterns. The anti-slip patterns include axial patterns and circumferential patterns, forming a grid-like friction surface to enhance the clamping force on the wound wire. Adding anti-slip patterns is mainly suitable for materials with low coefficient of friction, ensuring continuous conveying, and preventing the wound wire from falling out of the wire feeding wheel.

[0029] The working process of the wire feeding mechanism of the present invention is described below: 1. According to the diameter of the winding wire to be conveyed, replace the guide sleeve of the limit tube to the matching size, drive the top block to descend to the low position through the auxiliary motor, ensure that the entrance of the wire feeding channel is unobstructed, and manually or mechanically introduce the end of the winding wire into the starting end of the wire feeding channel. 2. When the wire feeding wheel group is started, the upper and lower wire feeding wheels rotate in opposite directions under the action of the drive motor, and the winding wire is clamped and conveyed forward through the annular groove; the elastic clamping component (continuously provides adaptive clamping force to ensure that the winding wire is conveyed without slippage, and at the same time the squeezing action of the upper and lower wire feeding wheels initially straightens the winding wire. If multiple sets of wire feeding wheel groups are used, the winding wire passes through the grooves with decreasing width in sequence to achieve step-by-step straightening and eliminate bending stress); 3. After the winding wire leaves the wire feeding module, it enters the auxiliary support module area. The auxiliary motor drives the top block to rise, and its upper surface arc concave surface contacts the bottom of the winding wire, providing precise support and preventing the winding wire from sagging due to its own weight or elasticity. 4. After the end of the winding wire reaches the predetermined position, the wire feeding wheel group stops rotating, the top block descends and resets under the drive of the auxiliary motor, and the limit tube remains in a guiding state in preparation for the next wire feeding.

[0030] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A wire feeding mechanism, characterized in that, include: Wire feeding module (1) and auxiliary support module (2); The wire feeding module (1) includes at least one wire feeding wheel group, which consists of an upper wire feeding wheel (11) and a lower wire feeding wheel (12) arranged alternately. Both the upper wire feeding wheel (11) and the lower wire feeding wheel (12) have annular grooves (111) for accommodating the winding wire. A wire feeding channel (13) for clamping and conveying the winding wire is formed between the upper wire feeding wheel (11) and the lower wire feeding wheel (12). The auxiliary support module (2) is located at the wire outlet end of the wire feeding module (1), and includes a liftable top block (21) and an auxiliary motor (22) for driving the top block (21). The upper surface of the top block (21) contacts the winding wire and provides support. The wire feeding module (1) also includes an elastic clamping component, which enables the upper wire feeding wheel (11) and the lower wire feeding wheel (12) to adaptively clamp the winding wire; The auxiliary support module (2) also includes a limiting tube (23), which is fixedly installed by a tube seat (24) and is used to guide and position the winding wire.

2. The wire feeding mechanism according to claim 1, characterized in that, The elastic pressing assembly includes a compression spring (17) and a slide groove (16). The lower wire feeding wheel (12) is slidably connected to the slide groove (16) through the lower wire feeding frame (15). The compression spring (17) is disposed in the slide groove (16) so that the lower wire feeding wheel (12) always has a tendency to press against the upper wire feeding wheel (11).

3. The wire feeding mechanism according to claim 1, characterized in that, The auxiliary motor (22) is a linear motor. The drive shaft of the auxiliary motor is inserted into the cylindrical through hole of the top block (21) to drive the top block (21) to move in the vertical direction to adapt to winding wires of different diameters.

4. The wire feeding mechanism according to claim 1, characterized in that, The upper surface of the top block (21) is an arc-shaped concave surface, the curvature of which matches the outer diameter of the winding wire.

5. The wire feeding mechanism according to claim 1, characterized in that, The limiting tube (23) includes multiple replaceable guide sleeves. The inner diameter of the guide sleeve is selected according to the diameter of the winding wire and is fixed to the tube seat (24) by threaded connection.

6. The wire feeding mechanism according to claim 1, characterized in that, The wire feeding module (1) includes two or more sets of wire feeding wheel sets, each set of wire feeding wheel sets is arranged sequentially along the wire feeding direction, and the width of the annular groove (111) of the wire feeding wheel set gradually decreases, so as to achieve step-by-step straightening and extrusion winding of the wire.

7. The wire feeding mechanism according to claim 1, characterized in that, The inner surfaces of the annular grooves (111) of the upper wire feeding wheel (11) and the lower wire feeding wheel (12) are provided with staggered anti-slip patterns, including axial patterns and circumferential patterns, forming a grid-like friction surface to enhance the clamping force on the wound wire.

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