Wire feeding device with tensioning function

Abstract

The utility model discloses a wire feeding device with a tensioning function, which relates to the technical field of textile machinery and comprises a bottom plate. The wire feeding wheel is rotatably arranged on the bottom plate; at least two guide pieces are distributed in the circumferential direction of the wire feeding wheel; the synchronous belt is wound outside the wire feeding wheel and the guide part, the outer ring of the synchronous belt is attached to the peripheral side of the guide part, and the inner ring of the synchronous belt is attached to the peripheral side of the guide part; the tensioning mechanism comprises an abutting piece, a mounting frame and an elastic piece, the mounting frame is movably arranged on the bottom plate and located between the two adjacent guide pieces, the abutting piece is connected to the mounting frame, and the peripheral side of the abutting piece abuts against the side face of the synchronous belt; the elastic piece is connected to the mounting frame and used for driving the abutting piece to abut against the synchronous belt. According to the utility model, the synchronous belt can be tensioned, the synchronous belt and the wire feeding wheel can be matched to clamp a steel wire so as to convey the steel wire, and wire feeding and wire returning are realized.

Description

Technical Field

[0001] This utility model relates to the technical field of textile machinery, and in particular to a yarn feeding device with tensioning function. Background Technology

[0002] When a computerized flat knitting machine is spinning, it is necessary to raise the fabric. Specifically, a wire feeding device feeds steel wires so that the steel wires pass through the needle rings at the top of the needle teeth on the threading plate, thus completing the raising without the need for starting yarn, saving yarn.

[0003] A wire feeding device includes a wire feeding wheel, a timing belt, a front guide, a rear guide, and a steel wire. The wire feeding wheel is driven and connected to a motor. The timing belt is wound around the periphery of the wire feeding wheel. The steel wire passes through the front guide and then wraps around the wire feeding wheel, where it is compressed between the timing belt and the wire feeding wheel. The other end of the steel wire passes over the wire feeding wheel and exits through the rear guide. When the motor starts, the wire feeding wheel rotates, and the friction drives the timing belt to move. The wire feeding wheel and the timing belt together pull the steel wire to achieve wire feeding and return.

[0004] In the aforementioned wire feeding device, the steel wire is pressed against the periphery of the wire feeding wheel by the synchronous belt. When the synchronous belt becomes loose, the synchronous belt and the wire feeding wheel cannot clamp the steel wire, and thus cannot drive the steel wire to move to achieve wire feeding and return. Summary of the Invention

[0005] The purpose of this invention is to provide a wire feeding device with a tensioning function, which can keep the synchronous belt tensioned, ensuring that the synchronous belt and the wire feeding wheel can cooperate to clamp the steel wire to transport the steel wire, thereby realizing wire feeding and wire return.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A wire feeding device with a tensioning function, the wire feeding device comprising:

[0008] Base plate;

[0009] A wire feeding wheel is rotatably mounted on the base plate and is driven by a drive motor.

[0010] Guide members, wherein at least two guide members are distributed circumferentially along the wire feeding wheel;

[0011] A timing belt is wound around the wire feed wheel and the guide member, with the outer ring of the timing belt fitting against the periphery of the guide member and the inner ring of the timing belt fitting against the periphery of the guide member.

[0012] The tensioning mechanism includes an abutment, a mounting bracket, and an elastic element. The mounting bracket is movably disposed on the base plate and located between two adjacent guide members. The abutment is connected to the mounting bracket, and its periphery abuts against the side of the timing belt. The elastic element engages with the mounting bracket and is used to drive the abutment to press against the timing belt.

[0013] In this design, the wire feeding device drives a wire feeding wheel on the base plate to rotate via a drive motor. The wire feeding wheel and the timing belt clamp the wire, causing the wire to move as the wire feeding wheel rotates, thus achieving wire feeding and return. The timing belt is wound around the wire feeding wheel via guide members, and a tensioning mechanism is installed between two adjacent guide members. Specifically, in the tensioning mechanism, a mounting bracket is movably mounted on the base plate, and an elastic element acts on the mounting bracket to provide a force towards the timing belt, keeping the abutment member pressed against the timing belt. When the timing belt becomes slack, the tension of the timing belt decreases, and the abutment member and the mounting bracket move towards the timing belt under the elastic force of the elastic element, keeping the abutment member pressed against the timing belt, thereby tensioning the timing belt. This ensures that the timing belt is in a taut state, allowing the timing belt and the wire feeding wheel to cooperate in clamping the wire for wire feeding, achieving stable wire feeding and return.

[0014] Furthermore, the elastic element includes a compression spring, which is disposed on the side of the mounting bracket away from the timing belt; a spring support is protruding from the base plate, and the compression spring abuts against the spring support and the mounting bracket.

[0015] In this design, the elastic element is a compression spring, which is located on the side of the mounting bracket away from the timing belt and abuts against the spring support and the mounting bracket. The compression spring drives the mounting bracket and the abutting element to press against the timing belt in a direction away from the compression spring so that the timing belt remains taut.

[0016] Furthermore, the mounting bracket is connected to a guide rod, the spring support has a guide hole, the compression spring is sleeved on the guide rod, and the end of the guide rod away from the mounting bracket can slide through the guide hole.

[0017] In this design, the guide rod can be slidably inserted through the guide hole on the spring support, thereby guiding the movement of the mounting bracket and the abutment, making the sliding of the mounting bracket on the base plate more stable; at the same time, the compression spring is sleeved outside the guide rod, so that the compression spring can stably extend and retract axially, and the elastic force of the compression spring can stably act on the mounting bracket axially to drive the abutment to press against the timing belt.

[0018] Furthermore, the guide rod is provided with external threads on its periphery, and an adjusting nut is threadedly connected to the guide rod, the adjusting nut being disposed between the mounting bracket and the compression spring.

[0019] In this design, the guide rod is connected to an adjusting nut via an external thread. The adjusting nut is positioned between the mounting bracket and the compression spring. The spring force is transmitted to the mounting bracket and the abutment via the adjusting nut and the guide rod. Thus, the compression of the spring can be adjusted by rotating the adjusting nut on the guide rod, thereby adjusting the spring force and consequently adjusting the pressure exerted by the abutment on the timing belt, thereby achieving adjustment of the timing belt tension.

[0020] Furthermore, an annular washer is provided on the outer sleeve of the guide rod, and the annular washer abuts against the adjusting nut and the compression spring.

[0021] In this design, an annular washer is placed between the adjusting nut and the compression spring, which makes it difficult for torque to be transmitted to the compression spring when the adjusting nut is rotated, thus reducing the wear of the compression spring. At the same time, when the adjusting nut is rotated, the annular washer can be moved closer to the compression spring, thereby reducing the pressure exerted by the compression spring on the adjusting nut and making it easier to rotate the adjusting nut.

[0022] Furthermore, the abutment is a wheel-shaped component, the mounting bracket is connected to a connecting shaft, and the abutment is rotatably sleeved on the connecting shaft.

[0023] In this design, the wheel-shaped abutment is rotatably sleeved outside the connecting shaft, meaning the abutment is rotatably connected to the mounting frame. As the timing belt is pulled by the wire feeding wheel, the abutment rolls relative to the timing belt, reducing friction between the abutment and the timing belt, making the timing belt move more smoothly, and reducing wear on both the timing belt and the abutment.

[0024] Furthermore, the abutment includes a bearing, the inner ring of which is fixed to the connecting shaft, and the outer ring of which is fitted to the timing belt.

[0025] In this design, the abutment component includes a bearing, which exhibits low friction when rotating with the connecting shaft, resulting in smoother rotation of the abutment component.

[0026] Furthermore, a guide groove is provided on the base plate, the extension direction of the guide groove intersects with the extension direction of the synchronous belt, and a guide slider is connected to the side of the mounting bracket facing the base plate. The guide slider is inserted into the guide groove and can slide along the length direction of the guide groove.

[0027] In this design, the guide slider and guide groove cooperate to guide the mounting frame as it moves along the base plate, so that the mounting frame and the abutment move stably along the extension direction of the guide groove, which is beneficial for the abutment to stably press against the timing belt.

[0028] Furthermore, the mounting bracket has a threaded post protruding from one side facing the guide groove, and the guide slider has a threaded hole that mates with the threaded post.

[0029] In this design, the mounting bracket is threaded to the guide slider via a threaded post, facilitating the connection between the guide slider and the mounting bracket.

[0030] Furthermore, the guide slider is provided with a limiting flange protruding radially outward, the outer diameter of the limiting flange being larger than the width of the guide groove, and the limiting flange abutting against the edge of the guide groove on the side away from the mounting bracket.

[0031] In this design, the limiting flange limits the guide slider at the groove opening on the side of the guide groove away from the mounting bracket, thereby making it difficult for the guide slider to fall out of the guide groove, and thus ensuring that the mounting bracket is stably set on the base plate.

[0032] In summary, this utility model has the following beneficial effects:

[0033] The wire feeding device of this invention drives the steel wire to move when the wire feeding wheel rotates, thereby achieving wire feeding and return. The synchronous belt is tensioned by a tensioning mechanism. When the synchronous belt becomes slack, the tension of the synchronous belt decreases, and the abutment and mounting bracket move toward the synchronous belt under the elastic force of the elastic element, so that the abutment keeps pressing against the synchronous belt, thereby tensioning the synchronous belt. This ensures that the synchronous belt is in a taut state, so that the synchronous belt and the wire feeding wheel can cooperate to clamp the steel wire for wire transport, achieving stable wire feeding and return. Attached Figure Description

[0034] Figure 1 This is a three-dimensional structural schematic diagram of a wire feeding device according to an embodiment of the present invention.

[0035] Figure 2 This is a three-dimensional structural schematic diagram of the tensioning mechanism according to an embodiment of the present invention.

[0036] Figure 3 This is a three-dimensional structural diagram of the tensioning mechanism and base plate according to an embodiment of the present invention.

[0037] Figure 4 This is a vertical cross-sectional structural diagram of the tensioning mechanism according to an embodiment of the present invention.

[0038] In the picture:

[0039] 1000. Wire feeding device; 100. Base plate; 110. Guide groove; 120. Spring support; 121. Guide hole; 200. Wire feeding wheel; 300. Guide component; 400. Synchronous belt; 500. Tensioning mechanism; 510. Abutment component; 511. Bearing; 520. Mounting bracket; 530. Elastic component; 540. Guide slider; 541. Limiting flange; 542. Threaded hole; 550. Threaded post; 560. Connecting shaft; 570. Guide rod; 580. Adjusting nut; 590. Annular washer; 600. Front guide component; 700. Rear guide component. Detailed Implementation

[0040] The present invention will be further described below with reference to the accompanying drawings.

[0041] This embodiment discloses a wire feeding device 1000 with a tensioning function, referring to... Figure 1 The wire feeding device 1000 includes a base plate 100, a wire feeding wheel 200, a guide member 300, a synchronous belt 400, and a tensioning mechanism 500. The wire feeding wheel 200 is rotatably mounted on the base plate 100. The guide member 300 is distributed circumferentially along the wire feeding wheel 200. The synchronous belt 400 is wrapped around the wire feeding wheel 200 and the guide member 300. The outer ring of the synchronous belt 400 is attached to the periphery of the guide member 300, and the inner ring of the synchronous belt 400 is attached to the periphery of the guide member 300. The tensioning mechanism 500 is located on one side of the synchronous belt 400 and is used to tension the synchronous belt 400.

[0042] In this embodiment, the wire feeding wheel 200 is pivotally connected to the base plate 100, and is driven by a drive motor to rotate on the base plate 100. Specifically, a large gear is coaxially fixed to the bottom of the wire feeding wheel 200, the drive motor is fixed to the base plate 100, and the output shaft of the drive motor is connected to a small gear. The small gear and the large gear mesh to achieve the transmission connection between the drive motor and the wire feeding wheel 200. The wire feeding device 1000 drives the wire feeding wheel 200 on the base plate 100 to rotate through the drive motor. The wire feeding wheel 200 and the timing belt 400 clamp the steel wire, thereby moving the steel wire when the wire feeding wheel 200 rotates to achieve wire feeding and return.

[0043] The guide member 300 is used to arrange the timing belt 400 on the base plate 100. The inner side of the timing belt 400 is in contact with the periphery of the guide member 300, and the outer side of the portion of the timing belt 400 that wraps around the wire feeding wheel 200 is in contact with the periphery of the wire feeding wheel 200, thereby allowing the timing belt 400 to wrap around the outside of the wire feeding wheel 200. At least two guide members 300 are provided. The timing belt 400 wraps around one guide member 300 and then around the periphery of the wire feeding wheel 200, before wrapping around another guide member 300 and leaving the wire feeding wheel 200.

[0044] Reference Figure 1 A front guide 600 and a rear guide 700 are fixedly installed on the base plate 100, and the front guide 600 and the rear guide 700 are arranged alternately. Both the front guide 600 and the rear guide 700 have cavities for the steel wire to pass through. After passing through the front guide 600, the steel wire enters from a guide member 300 between the wire feeding wheel 200 and the synchronous belt 400 and wraps around the periphery of the wire feeding wheel 200. The portion of the steel wire that passes around the wire feeding wheel 200 enters the rear guide 700. By setting up the front guide 600 and the rear guide 700, the steel wire can stably enter between the wire feeding wheel 200 and the synchronous belt 400, facilitating wire feeding and return.

[0045] In this embodiment, five guide members 300 are arranged circumferentially along the wire feeding wheel 200, and the synchronous belt 400 is simultaneously wound around the five guide members 300. The line connecting two adjacent guide members 300 does not intersect with the wire feeding wheel 200, so that the portion of the synchronous belt 400 not wound around the wire feeding wheel 200 does not interfere with the wire feeding wheel 200 or the steel wire.

[0046] In this embodiment, the guide member 300 is specifically a guide wheel. The guide wheel is rotatably connected to the base plate 100 through a rotating shaft, so that when the synchronous belt 400 around the guide wheel is displaced relative to the guide wheel, the guide wheel can rotate to reduce the friction between it and the synchronous belt 400.

[0047] Reference Figure 2 The tensioning mechanism 500 includes an abutment 510, a mounting bracket 520, and an elastic element 530. The mounting bracket 520 is movably disposed on the base plate 100 and located between two adjacent guide members 300. The abutment 510 is connected to the mounting bracket 520, and its periphery abuts against the side of the timing belt 400, which is not wrapped around the periphery of the wire feed wheel 200, between the two adjacent guide members 300. The elastic element 530 engages with the mounting bracket 520, providing a force to the mounting bracket 520 toward the timing belt 400 to drive the abutment 510 connected to the mounting bracket 520 to press against the timing belt 400, thus maintaining the abutment 510 against the timing belt 400.

[0048] Therefore, when the timing belt 400 becomes slack, the tension of the timing belt 400 decreases, and the abutment 510 and the mounting bracket 520 move toward the timing belt 400 under the elastic force of the elastic element 530, so that the abutment 510 keeps pressing against the timing belt 400, thereby tightening the timing belt 400 and ensuring that the timing belt 400 is in a taut state, so that the timing belt 400 and the wire feeding wheel 200 can cooperate to clamp the steel wire to transport the steel wire, thereby achieving stable wire feeding and return.

[0049] Reference Figures 2 to 4 In this embodiment, the mounting bracket 520 is a C-shaped component, and the abutment 510 is disposed within the C-shaped opening of the mounting bracket 520. Of course, in other embodiments, the mounting bracket 520 may also be other suitable shapes, preferably capable of mounting the abutment 510 without interfering with the timing belt 400.

[0050] In this embodiment, a guide groove 110 is provided on the base plate 100. The guide groove 110 is an elongated groove, and its extension direction intersects with the extension direction of the synchronous belt 400. A guide slider 540 is connected to the side of the mounting bracket 520 facing the base plate 100. The guide slider 540 is inserted into the guide groove 110 and can slide along the length direction of the guide groove 110. The guide slider 540 cooperates with the guide groove 110 to guide the mounting bracket 520 as it moves along the base plate 100, so that the mounting bracket 520 and the abutment 510 move stably along the extension direction of the guide groove 110, which is beneficial for the abutment 510 to stably press against the synchronous belt 400.

[0051] One end of the guide slider 540 away from the mounting bracket 520 passes through the guide groove 110 and protrudes from the side of the guide groove 110 opposite to the mounting bracket 520. The guide slider 540 is provided with a limiting flange 541 protruding radially outward. The outer diameter of the limiting flange 541 is larger than the width of the guide groove 110. The limiting flange 541 abuts against the edge of the groove opening on the side of the guide groove 110 away from the mounting bracket 520, so that the limiting flange 541 limits the guide slider 540 at the groove opening on the side of the guide groove 110 away from the mounting bracket 520. The mounting bracket 520 is limited at the edge of the groove opening on the side of the guide groove 110 facing the mounting bracket 520. This makes it difficult for the guide slider 540 to fall out of the guide groove 110, and the mounting bracket 520 is stably set on the base plate 100.

[0052] In this embodiment, a threaded post 550 protrudes from the side of the mounting bracket 520 facing the guide groove 110, and the guide member 300 is provided with a threaded hole 542 that mates with the threaded post 550. The mounting bracket 520 is threadedly engaged with the guide member 300 through the threaded post 550, which facilitates the connection between the guide member 300 and the mounting bracket 520, and further facilitates the connection between the mounting bracket 520 and the base plate 100.

[0053] Reference Figures 2 to 4 The abutment 510 is a wheel-shaped component, and its outer circumferential surface abuts against the synchronous belt 400 to reduce the friction between the synchronous belt 400 and the abutment 510.

[0054] In this embodiment, the mounting bracket 520 is connected to a connecting shaft 560, and the abutment 510 is rotatably sleeved on the connecting shaft 560. That is, the abutment 510 is rotatably connected to the mounting bracket 520, so that when the synchronous belt 400 is pulled by the wire feeding wheel 200, the abutment 510 rolls relative to the synchronous belt 400, reducing the friction between the abutment 510 and the synchronous belt 400, making the synchronous belt 400 move more smoothly, and reducing the wear of the synchronous belt 400 and the abutment 510.

[0055] In addition, in other embodiments, the abutment 510 may also be fixedly disposed within the mounting bracket 520, and the friction between the timing belt 400 and the abutment 510 is sliding friction.

[0056] The connecting shaft 560 passes through the upper and lower ends of the C-shaped mounting bracket 520 to ensure that the abutment 510 can be installed in the C-shaped opening of the mounting bracket 520.

[0057] In this embodiment, the threaded post 550 is coaxially connected to the end of the connecting shaft 560 near the base plate 100. The threaded post 550 and the connecting shaft 560 are integrally formed to reduce the number of parts in the tensioning mechanism 500 and facilitate the assembly of the tensioning mechanism 500. In other embodiments, the threaded post 550 and the connecting shaft 560 may also be independently mounted on the mounting bracket 520.

[0058] In this embodiment, the abutment 510 includes a bearing 511. The inner ring of the bearing 511 is fixed to the connecting shaft 560, and the outer ring of the bearing 511 is attached to the timing belt 400. This results in less friction when the abutment 510 rotates with the connecting shaft 560, and the abutment 510 rotates more smoothly.

[0059] Specifically, in this embodiment, each abutment 510 includes two flanged outer ring deep groove ball bearings along the connecting shaft 560. Each flanged outer ring deep groove ball bearing has a flange along its outer ring edge, so that the synchronous belt 400 is limited between the flanges of the two flanged outer ring deep groove ball bearings. The synchronous belt 400 is not easy to slip off from the abutment 510, making the wire feeding device 1000 more stable.

[0060] In addition, in other embodiments, the abutment 510 may also be other bearings 511; or, the abutment 510 may be directly selected as a roller rotatably connected to the connecting shaft 560.

[0061] Reference Figures 1 to 4 In this embodiment, the elastic element 530 includes a compression spring, which is disposed on the side of the mounting bracket 520 away from the synchronous belt 400. A spring support 120 is protruding on the base plate 100, and the compression spring abuts against the spring support 120 and the mounting bracket 520.

[0062] The spring support 120 and the mounting bracket 520 are located outside the synchronous belt 400 (i.e., the spring support 120 and the mounting bracket 520 are not located within the area enclosed by the synchronous belt 400), and the peripheral side of the abutment member 510 abuts against the outer ring of the synchronous belt 400. The compression spring drives the mounting bracket 520 and the abutment member 510 to press against the synchronous belt 400 in a direction away from the compression spring (i.e., the abutment member 510 presses the synchronous belt 400 inward), so that the synchronous belt 400 remains taut.

[0063] In addition, in one embodiment, the elastic element 530 includes a compression spring, the spring support 120 and the mounting bracket 520 are disposed within the timing belt 400 (i.e., the timing belt 400 surrounds the spring support 120 and the mounting bracket 520), the peripheral side of the abutment member 510 abuts against the inner ring of the timing belt 400, and the compression spring drives the mounting bracket 520 and the abutment member 510 to press against the timing belt 400 outward so that the timing belt 400 remains taut.

[0064] In one embodiment, the elastic element 530 includes a tension spring connected between the mounting bracket 520 and the spring support 120. The timing belt 400 passes through the C-shaped opening of the mounting bracket 520. The spring support is disposed outside the timing belt 400, and the abutment 510 is disposed inside the timing belt 400, with its periphery abutting against the inner ring of the timing belt 400. In another embodiment, the elastic element 530 includes a tension spring connected between the mounting bracket 520 and the spring support 120. The timing belt 400 passes through the C-shaped opening of the mounting bracket 520. The spring support is disposed inside the timing belt 400, and the abutment 510 is disposed outside the timing belt 400, with its periphery abutting against the outer ring of the timing belt 400.

[0065] A guide rod 570 is connected to the side of the mounting bracket 520 away from the abutment member 510. The guide rod 570 extends in a direction parallel to the guide groove 110. The spring support 120 has a guide hole 121. The end of the guide rod 570 away from the mounting bracket 520 can slide through the guide hole 121, thereby guiding the mounting bracket 520 and the abutment member 510 when they move, making the sliding of the mounting bracket 520 on the base plate 100 more stable.

[0066] The compression spring is sleeved outside the guide rod 570, so that the compression spring can stably extend and retract along the axial direction. The elastic force of the compression spring acts stably along the axial direction on the mounting base to drive the abutment 510 to press against the synchronous belt 400.

[0067] The guide rod 570 has external threads on its circumference, and an adjusting nut 580 is connected to the guide rod 570 via these external threads. The adjusting nut 580 is positioned between the mounting bracket 520 and the compression spring. The spring force is transmitted to the mounting bracket 520 and the abutment member 510 via the adjusting nut 580 and the guide rod 570. Thus, the compression of the spring can be adjusted by rotating the adjusting nut 580 on the guide rod 570, thereby adjusting the spring force and, consequently, adjusting the pressure exerted by the abutment member 510 on the synchronous belt 400, thus achieving adjustment of the tension of the synchronous belt 400.

[0068] A ring-shaped washer 590 is fitted over the guide rod 570, abutting between the adjusting nut 580 and the compression spring. In this embodiment, the ring-shaped washer 590 separates the adjusting nut 580 and the compression spring, making it less likely for torque to be transmitted to the compression spring when the adjusting nut 580 is rotated, thus reducing wear on the compression spring. Simultaneously, when rotating the adjusting nut 580, the ring-shaped washer 590 can be moved closer to the compression spring, thereby reducing the pressure exerted by the compression spring on the adjusting nut 580 and facilitating rotation of the adjusting nut 580.

[0069] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A wire feeding device with a tensioning function, characterized in that, The wire feeding device (1000) includes: Base plate (100); A wire feeding wheel (200) is rotatably mounted on the base plate (100) and is connected to a drive motor. Guide members (300), at least two of which are distributed circumferentially along the wire feeding wheel (200); A timing belt (400) is wound around the wire feed wheel (200) and the guide member (300). The outer ring of the timing belt (400) is attached to the periphery of the guide member (300), and the inner ring of the timing belt (400) is attached to the periphery of the guide member (300). The tensioning mechanism (500) includes an abutment (510), a mounting bracket (520), and an elastic element (530). The mounting bracket (520) is movably disposed on the base plate (100) and located between two adjacent guide members (300). The abutment (510) is connected to the mounting bracket (520), and the periphery of the abutment (510) abuts against the side of the timing belt (400). The elastic element (530) engages with the mounting bracket (520) and is used to drive the abutment (510) to press against the timing belt (400).

2. The wire feeding device with tensioning function as described in claim 1, characterized in that, The elastic element (530) includes a compression spring, which is disposed on the side of the mounting bracket (520) away from the synchronous belt (400); a spring support (120) is protruding on the base plate (100), and the compression spring abuts between the spring support (120) and the mounting bracket (520).

3. The wire feeding device with tensioning function as described in claim 2, characterized in that, The mounting bracket (520) is connected to a guide rod (570), the spring support (120) has a guide hole (121), the compression spring is sleeved on the guide rod (570), and the end of the guide rod (570) away from the mounting bracket (520) can slide through the guide hole (121).

4. A wire feeding device with tensioning function as described in claim 3, characterized in that, The guide rod (570) is provided with external threads on its periphery, and the guide rod (570) is threadedly connected to an adjusting nut (580), which is located between the mounting bracket (520) and the compression spring.

5. A wire feeding device with tensioning function as described in claim 4, characterized in that, The guide rod (570) is fitted with an annular washer (590), which abuts against the adjusting nut (580) and the compression spring.

6. A wire feeding device with tensioning function as described in claim 1, characterized in that, The abutment (510) is a wheel-shaped component, and the mounting bracket (520) is connected to a connecting shaft (560). The abutment (510) is rotatably sleeved on the connecting shaft (560).

7. A wire feeding device with tensioning function as described in claim 6, characterized in that, The abutment (510) includes a bearing (511), the inner ring of which is fixed to the connecting shaft (560), and the outer ring of which is attached to the timing belt (400).

8. A wire feeding device with tensioning function as described in claim 1, characterized in that, The base plate (100) is provided with a guide groove (110), the extension direction of the guide groove (110) intersects the extension direction of the synchronous belt (400), and a guide slider (540) is connected to the side of the mounting bracket (520) facing the base plate (100). The guide slider (540) is inserted into the guide groove (110) and can slide along the length direction of the guide groove (110).

9. A wire feeding device with tensioning function as described in claim 8, characterized in that, The mounting bracket (520) has a threaded post (550) protruding on one side facing the guide groove (110), and the guide slider (540) is provided with a threaded hole (542) that mates with the threaded post (550).

10. A wire feeding device with a tensioning function as described in claim 8 or 9, characterized in that, The guide slider (540) has a limiting flange (541) protruding radially outward. The outer diameter of the limiting flange (541) is greater than the width of the guide groove (110). The limiting flange (541) abuts against the edge of the groove on the side of the guide groove (110) away from the mounting bracket (520).

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