Wire feeding mechanism and wire shaping apparatus

Abstract

The application discloses a metal wire feeding mechanism and a metal wire shaping device, and the metal wire feeding mechanism comprises a feeder frame, a tray movably installed on the feeder frame and provided with a mounting groove for placing a metal wire feeding box, a first driving assembly for switching the tray between a loading working position and a feeding working position, a rotating tooth rotatably arranged on one side of the feeder frame and engaged with a pushing rack of a pushing block when the tray loaded with the metal wire feeding box is in the feeding working position, and a second driving assembly for driving the rotating tooth to rotate and moving the pushing block, so that the metal wire is moved out of the base. The first driving assembly can switch the tray from the loading working position to the feeding working position, so that the rotating tooth is engaged with the pushing rack of the pushing block. The second driving assembly drives the rotating tooth to rotate and moves the pushing block, so that the metal wire is moved out of the base. Compared with the prior art, the metal wire feeding mechanism does not need manual pushing and is simple and reliable to operate.

Description

Technical Field

[0001] This utility model relates to the field of interventional consumable shaping, specifically to a metal wire feeding mechanism and a metal wire shaping device. Background Technology

[0002] Microcatheters used in interventional procedures require shaping needles to be molded into the desired shape before use. Typically, these shaping needles are flexible metal wires. Traditionally, shaping these needles involves clinicians manually bending them to the required shape. Existing technologies disclose the use of shaping devices to bend metal wires into the desired shape. For example, patent document CN115055604B discloses a metal wire shaping device that can automatically shape metal wires.

[0003] In the aforementioned patent literature, the metal wire is fed into a metal wire feeding box in conjunction with a metal wire shaping device. During operation, the metal wire feeding box is inserted into the feeding chute, and then the ejector pushes the metal wire further forward from the feeding box body, feeding it between the driving and driven conveying wheels. After the metal wire feeding box completes its work, the ejection gear engages with the rack of the metal wire feeding box to automatically remove the box from the feeding chute. This feeding method requires manual pushing of the metal wire, making operation relatively inconvenient. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a metal wire feeding mechanism and a metal wire shaping device.

[0005] The technical solution adopted by this utility model is as follows:

[0006] A wire feeding mechanism is provided for cooperating with a wire feeding box. The wire feeding box includes a hollow base and a wire pushing block slidably mounted on the base. The wire pushing block has a pushing rack. The wire feeding box is used to accommodate a wire. When the wire pushing block moves, it can drive the wire to move out of the base. The wire feeding mechanism includes:

[0007] Feeder frame;

[0008] A tray is movably mounted on the feeder frame. The tray has a loading work position and a feeding work position. The tray has a mounting groove for placing the wire feeding box.

[0009] The first drive component is used to drive the pallet to move on the feeder frame, so that the pallet switches between the loading position and the feeding position.

[0010] The rotating tooth is rotatably mounted on one side of the feeder frame. When the tray containing the wire feeding box is in the feeding position, the rotating tooth can mesh with the pushing rack of the wire pusher block after it rotates.

[0011] The second drive assembly is used to drive the rotating teeth to rotate, thereby moving the wire pusher block and removing the metal wire from the base.

[0012] This application utilizes a first drive assembly to switch the tray from the loading position to the feeding position, thereby engaging the rotating teeth with the pusher rack of the wire pusher block. A second drive assembly then drives the rotating teeth to rotate, moving the wire pusher block and removing the metal wire from the base. Compared to existing technologies, this eliminates the need for manual pushing, making operation simple and reliable. After feeding is complete, the first drive assembly resets, allowing the tray to switch back to the loading position, at which point the empty wire feed box can be removed.

[0013] In one embodiment of the present invention, a mounting frame fixed relative to the feeding machine frame is further included. The mounting frame is provided with a rack positioning structure, which is used to limit the moving position of the pushing rack.

[0014] In one embodiment of this utility model, the wire feeding mechanism includes a controller, the controller being electrically connected to the first driving component and the second driving component, and the rack positioning structure including:

[0015] The sensing sensor is mounted on the mounting bracket.

[0016] A rotating frame is rotatably mounted on a mounting bracket in the middle. Each end of the rotating frame has a sensing end and a trigger end. The trigger end is close to the mounting slot, while the sensing end is away from the mounting slot and adjacent to the sensing sensor. The rotating frame has an initial working position and a trigger working position. In the initial working position, the sensing end is offset from the sensing sensor, and the sensing sensor is not triggered. In the trigger working position, the sensing end moves closer to the sensing sensor, and the sensing sensor is triggered. At this time, the controller controls the second drive component to stop working. When the rotating gear rotates, it drives the rack to move a set distance and then contacts the trigger end, thus driving the rotating frame to rotate and switch to the trigger working position.

[0017] The "middle" mentioned in this application does not refer to the exact center, but rather to the position between the two ends.

[0018] The rack and pinion positioning structure can determine the position of the rack, thus reliably ensuring that the metal wire moves a set distance from the base.

[0019] In one embodiment of the present invention, the rotating frame is provided with a counterweight at or near the sensing end, and the counterweight is used to make the rotating frame have a rotational tendency to maintain the initial working position.

[0020] The counterweight includes a screw rod screwed onto the rotating frame and a counterweight part disposed on the screw rod;

[0021] The sensing sensor is a Hall sensor, and the sensing end has a magnet; alternatively, the sensing sensor is a photoelectric sensor.

[0022] This design of the counterweight makes installation and adjustment convenient.

[0023] In one embodiment of this utility model, the feeding frame has a wire outlet channel communicating with the end of the mounting groove, the wire outlet channel being used for the passage of metal wire, and the feeding frame is also provided with a wire clamping structure, the wire clamping structure including:

[0024] A chute is installed on the feeder frame and located on one side of the wire outlet channel;

[0025] A slider is slidably disposed on the groove. The slider is used to move closer to or away from the wire outlet channel. When the slider moves closer to the wire outlet channel, the slider clamps the metal wire. When the slider moves away from the wire outlet channel, the slider no longer clamps the metal wire.

[0026] The third driving mechanism is used to move the slider.

[0027] After the wire pusher is pushed and the metal wire is pushed out, the wire clamping structure can clamp the metal wire. At this time, the first drive component can be reset. When the tray moves the metal wire feeding box to the loading position, it will not move the metal wire together.

[0028] In one embodiment of the present invention, the slider has a drive seat, the drive seat has a strip-shaped drive groove, and the third drive mechanism includes a drive motor and a drive wheel eccentrically mounted on the output shaft of the drive motor. The drive wheel is disposed on the strip-shaped drive groove. When the drive motor rotates, it can drive the drive wheel to rotate eccentrically, so that the drive seat and the slider reciprocate.

[0029] In one embodiment of the present invention, the second drive component is a motor component, the second drive component is mounted on a feeder frame or a mounting frame, and the rotating gear is rotatably mounted on the mounting frame or directly fixed on the output shaft of the second drive component;

[0030] The tray has a rack portion, and the first drive assembly includes a feeding motor and a drive gear driven by the feeding motor, the drive gear meshing with the rack portion.

[0031] In one embodiment of the present invention, the mounting groove and the rack are located on the upper and lower sides of the tray, respectively.

[0032] This design makes the entire structure compact and reliable.

[0033] In one embodiment of the present invention, the feeding frame has a feeding track, and the tray is slidably mounted on the feeding track;

[0034] The wire feeding mechanism also includes a first limit switch and a second limit switch. When the tray is in the loading position, the first limit switch is triggered, and when the tray is in the feeding position, the second limit switch is triggered.

[0035] Two limit switches can limit the position of the tray, ensuring reliable operation of the mechanism.

[0036] This application also discloses a metal wire shaping device, including a metal wire feeding box and the metal wire feeding mechanism described above. The metal wire feeding box includes a hollow base and a wire pushing block slidably mounted on the base. The wire pushing block has a pushing rack. The metal wire feeding box is used to accommodate metal wires. When the wire pushing block moves, it can drive the metal wires to move out of the base.

[0037] One end of the base is a working end, and the base has a limiting channel that extends to the working end. The base also has a strip-shaped hole, the length direction of which is the same as the length direction of the limiting channel. The pushing rack of the wire pusher block protrudes from the strip-shaped hole. The wire pusher block has a pushing part corresponding to the limiting channel. The wire pusher block can move along the length direction of the strip-shaped hole. The metal wire is used to pass through the limiting channel, and one end of the metal wire cooperates with the pushing part.

[0038] The beneficial effects of this utility model are as follows: This application enables the tray to switch from the loading position to the feeding position via the first drive component, thereby engaging the rotating teeth with the pushing rack of the wire pusher block. The second drive component drives the rotating teeth to rotate, causing the wire pusher block to move and remove the metal wire from the base. Compared with the prior art, no manual pushing is required, making the operation simple and reliable. After feeding is completed, the first drive component resets, enabling the tray to switch back to the loading position, at which point the empty metal wire feeding box can be removed. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the wire feeding mechanism when the pallet is in the loading position and the wire feeding box is installed;

[0040] Figure 2 This is a schematic diagram showing the pallet in the feeding position and the rotating frame in the initial working position.

[0041] Figure 3 This is a schematic diagram showing the pallet in the feeding position and the rotating frame in the trigger position.

[0042] Figure 4This is a schematic diagram of another angle when the pallet is in the feeding position and the rotating frame is in the trigger position;

[0043] Figure 5 This is a schematic diagram of a wire clamping structure where the metal wire is not clamped tightly;

[0044] Figure 6 yes Figure 5 A schematic diagram showing the partial cross-section of the structure;

[0045] Figure 7 This is a schematic diagram of a wire clamping structure that clamps a metal wire;

[0046] Figure 8 yes Figure 7 A schematic diagram showing the partial cross-section of the structure;

[0047] Figure 9 This is a schematic diagram of the wire feeder box when the wire is pushed out;

[0048] Figure 10 This is a diagram of the wire feeder box when the wire has not been pushed out.

[0049] Figure 11 This is a top view of the wire feeder box;

[0050] Figure 12 yes Figure 11 AA section view in the middle;

[0051] Figure 13 This is a schematic diagram of a metal wire shaping device;

[0052] Figure 14 This is a schematic diagram of the wire shaping device when the moving seat is in its initial position;

[0053] Figure 15 This is a schematic diagram of the wire output mechanism when the movable seat is in the initial position;

[0054] Figure 16 This is a schematic diagram of the wire output mechanism when the movable seat is in the middle position;

[0055] Figure 17 This is a schematic diagram of the wire shaping device when the movable seat is in the release position;

[0056] Figure 18 This is a schematic diagram of the wire output mechanism when the movable seat is in the release position;

[0057] Figure 19 This is an exploded view of the wire feeding mechanism;

[0058] Figure 20 This is a schematic diagram of a wire shaping device when the movable seat is in the release position.

[0059] The labels for the attached figures are as follows:

[0060] 1. Main frame; 2. Guide rail; 3. Shaping mechanism; 4. Translation assembly; 5. Storage box; 6. Transfer assembly; 7. Wire output mechanism; 71. Output frame; 711. Limiting guide rail; 72. Conveying assembly; 721. Moving seat; 7211. Threaded hole; 722. Lead screw; 723. Drive motor; 73. First clamping plate; 731. Vertical part; 74. Moving part; 741. Pressure-bearing part; 742. Second clamping plate; 7421. Clamping part; 7422. Flexible pad; 75. Elastic reset component; 76. First pressure block; 761. Arc groove; 77. Second pressure block; 781. Clamping opening; 782. Clearance space; 8. Wire feeding box; 81. Base; 811. Working end; 812. Limiting channel; 813. Strip hole; 82. Wire pusher block; 821. Pushing rack; 822. Pushing mechanism 9. Wire feeding mechanism; 91. Feeder frame; 912. First limit switch; 913. Second limit switch; 92. Tray; 921. Mounting groove; 922. Rack section; 923. Wire outlet channel; 924. Slide groove; 93. First drive assembly; 931. Feeding motor; 932. Drive gear; 941. Rotating gear; 942. Second drive assembly; 95. Mounting frame; 96. Rack positioning structure; 961. Induction sensor; 962. Rotating frame; 9621. Sensing end; 9622. Trigger end; 9623. Counterweight; 96231. Screw; 96232. Counterweight section; 97. Wire clamping structure; 971. Slider; 972. Drive seat; 9721. Strip drive groove; 973. Third drive mechanism; 9731. Drive motor; 9732. Drive wheel; 10. Wire. Detailed Implementation

[0061] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0062] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0063] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0064] The present invention will now be described in detail with reference to the accompanying drawings.

[0065] like Figures 1-20 As shown, a metal wire shaping device includes:

[0066] Metal wire feeder box 8, see Figures 9-12 The wire feeding box 8 has a hollow base 81 and a wire pushing block 82 slidably mounted on the base 81. The wire pushing block 82 has a pushing rack 821. The wire feeding box 8 is used to hold the wire 10. When the wire pushing block 82 moves, it can drive the wire 10 to move out of the base 81.

[0067] Mainframe 1, see Figure 20 It has guide rail 2;

[0068] Shaping mechanism 3, see Figure 20 The metal wire 10 is slidably mounted on the guide rail 2. The shaping mechanism 3 is used to shape the metal wire 10, so that a part of the metal wire 10 is shaped into a shaped part.

[0069] Wire feeding mechanism 9, see Figure 13 and 20 It is used to transport the metal wire 10 from the metal wire feeding box 8 to the shaping mechanism 3 for shaping;

[0070] Wire output mechanism 7, see Figure 14 , used to remove the metal wire 10 shaped by the shaping mechanism 3;

[0071] Translation component 4, see Figure 20 Used to drive the shaping mechanism 3 to move towards the wire output mechanism 7, so that the unshaped straight portion of the wire 10 on the shaping mechanism 3 engages with the wire output mechanism 7; and

[0072] Storage box 5, see Figure 20 It is located on one side of the wire output mechanism 7 and is used to receive the wire 10;

[0073] like Figures 1-4 As shown, the wire feeding mechanism 9 includes:

[0074] Feeder frame 91;

[0075] The tray 92 is movably mounted on the feeder frame 91. The tray 92 has a loading work position and a feeding work position. The tray 92 has a mounting groove 921 for placing the wire feeding box 8.

[0076] The first drive assembly 93 is used to drive the pallet 92 to move on the feeder frame 91, so that the pallet 92 can switch between the loading position and the feeding position.

[0077] Rotating gear 941 is rotatably mounted on one side of the feeder frame 91. When the tray 92 containing the wire feeding box 8 is in the feeding position, the rotating gear 941 can mesh with the pushing rack 821 of the wire pushing block 82 after rotating.

[0078] The second drive assembly 942 is used to drive the rotating gear 941 to rotate, thereby moving the wire pusher block 82 and causing the metal wire 10 to be removed from the base 81.

[0079] The wire feeding mechanism 9, via the first drive assembly 93, allows the tray 92 to switch from the loading position to the feeding position, thereby engaging the rotating gear 941 with the pushing rack 821 of the wire pusher block 82. The second drive assembly 942 drives the rotating gear 941 to rotate, moving the wire pusher block 82 and removing the wire 10 from the base 81. Compared to existing technologies, this eliminates the need for manual pushing, making operation simple and reliable. After feeding is complete, the first drive assembly 93 resets, allowing the tray 92 to switch back to the loading position, at which point the empty wire feeding box 8 can be removed.

[0080] like Figures 1-4 As shown, in this embodiment, a mounting frame 95 fixed relative to the feeder frame 91 is also included. A rack and pinion positioning structure 96 is provided on the mounting frame 95. The rack and pinion positioning structure 96 is used to limit the moving position of the push rack 821.

[0081] like Figures 1-3 As shown, in this embodiment, the wire feeding mechanism 9 includes a controller (not shown in the figure), which is electrically connected to the first drive component 93 and the second drive component 942. The rack and pinion positioning structure 96 includes:

[0082] The sensing sensor 961 is mounted on the mounting bracket 95;

[0083] The rotating frame 962 is rotatably mounted on the mounting frame 95. The rotating frame 962 has a sensing end 9621 and a trigger end 9622 at its two ends. The trigger end 9622 is close to the mounting groove 921, while the sensing end 9621 is away from the mounting groove 921 and close to the sensing sensor 961. The rotating frame 962 has an initial working position and a trigger working position. In the initial working position, the sensing end 9621 is offset from the sensing sensor 961, and the sensing sensor 961 is not triggered. In the trigger working position, the sensing end 9621 moves closer to the sensing sensor 961, triggering the sensing sensor 961. At this time, the controller controls the second drive assembly 942 to stop working. When the rotating gear 941 rotates, it drives the rack 821 to move. After the rack 821 moves a set distance, it contacts the trigger end 9622, which then drives the rotating frame 962 to rotate and switch to the trigger working position.

[0084] The "middle" mentioned in this application does not refer to the exact center, but rather to the position between the two ends.

[0085] The rack and pinion positioning structure 96 can determine the position of the push rack 821, thereby reliably ensuring that the metal wire 10 moves a set distance from the base 81.

[0086] like Figure 2 As shown, in this embodiment, the rotating frame 962 is provided with a counterweight 9623 at or near the sensing end 9621. The counterweight 9623 is used to make the rotating frame 962 have a rotational tendency to maintain the initial working position.

[0087] The counterweight 9623 includes a screw 96231 screwed onto the rotating frame 962 and a counterweight part 96232 disposed on the screw 96231;

[0088] The sensing sensor 961 is a Hall sensor, and the sensing end 9621 has a magnet; alternatively, the sensing sensor 961 is a photoelectric sensor.

[0089] The 9623 counterweight is designed for easy installation and adjustment.

[0090] like Figures 5-8 As shown, in this embodiment, the feeding frame 91 has a wire outlet channel 923 communicating with the end of the mounting groove 921. The wire outlet channel 923 is used for the passage of the metal wire 10. The feeding frame 91 is also provided with a wire clamping structure 97, which includes:

[0091] The chute 924 is installed on the feeder frame 91 and is located on one side of the wire outlet channel 923;

[0092] The slider 971 is slidably disposed on the groove 924. The slider 971 is used to move closer to or further away from the wire outlet channel 923. When the slider 971 moves closer to the wire outlet channel 923, the slider 971 clamps the metal wire 10. When the slider 971 moves away from the wire outlet channel 923, the slider 971 no longer clamps the metal wire 10.

[0093] The third drive mechanism 973 is used to move the slider 971.

[0094] After the wire pusher block 82 is pushed and drives the metal wire 10 out, the wire clamping structure 97 can clamp the metal wire 10. At this time, the first drive component 93 can be reset. When the tray 92 drives the metal wire feeding box 8 to the loading position, it will not drive the metal wire 10 to move together.

[0095] like Figure 5 and 8 As shown, in this embodiment, the slider 971 has a drive seat 972, the drive seat 972 has a strip-shaped drive groove 9721, and the third drive mechanism 973 includes a drive motor 9731723 and a drive wheel 9732 eccentrically mounted on the output shaft of the drive motor 9731723. The drive wheel 9732 is disposed on the strip-shaped drive groove 9721. When the drive motor 9731723 rotates, it can drive the drive wheel 9732 to rotate eccentrically, so that the drive seat 972 and the slider 971 reciprocate.

[0096] like Figure 4 As shown, in this embodiment, the second drive component 942 is a motor component. The second drive component 942 is mounted on the feeder frame 91 or the mounting frame 95. The rotating gear 941 is rotatably mounted on the mounting frame 95 or directly fixed on the output shaft of the second drive component 942.

[0097] The tray 92 has a rack portion 922, and the first drive assembly 93 includes a feeding motor 931 and a drive gear 932 driven by the feeding motor 931, the drive gear 932 meshing with the rack portion 922.

[0098] In this embodiment, the mounting groove 921 and the rack portion 922 are located on the upper and lower sides of the tray 92, respectively. This arrangement makes the entire structure compact and reliable.

[0099] In this embodiment, the feeding frame 91 has a feeding track (covered in the figure and not shown), and the tray 92 is slidably mounted on the feeding track;

[0100] like Figure 1 and 2 As shown, the wire feeding mechanism 9 also includes a first limit switch 912 and a second limit switch 913. When the tray 92 is in the loading position, the first limit switch 912 is triggered, and when the tray 92 is in the feeding position, the second limit switch 913 is triggered.

[0101] Two limit switches can limit the position of the tray 92, ensuring reliable operation of the mechanism.

[0102] like Figures 14-20 As shown, in this embodiment, the wire output mechanism 7 includes:

[0103] Output rack 71 is mounted on main rack 1;

[0104] The conveying assembly 72 is mounted on the output frame 71 and has a movable seat 721, which has an initial position, a release position, and an intermediate position between the initial position and the release position.

[0105] The first clamping plate 73 is fixed on the movable base 721;

[0106] The movable part 74 is rotatably mounted on the movable seat 721. The movable part 74 has a pressure-receiving part 741 and a second clamping plate 742 that cooperates with the first clamping plate 73. The second clamping plate 742 and the first clamping plate 73 cooperate with each other to clamp the metal wire 10.

[0107] The elastic reset member 75 is disposed between the movable seat 721 and the movable member 74, and is used to give the second clamping plate 742 a rotational tendency to rotate toward the first clamping plate 73. When the movable seat 721 moves between the initial position and the release position, the second clamping plate 742 clamps the first clamping plate 73.

[0108] The first pressure block 76 is set on the output frame 71 and cooperates with the pressure part 741 of the movable seat 721 in the initial position, so that the movable part 74 rotates at a set angle, so that the second clamping plate 742 moves away from the first clamping plate 73. The second clamping plate 742 and the first clamping plate 73 form a clamping port 781 for inserting the metal wire 10.

[0109] The second pressure block 77 is set on the output frame 71 and cooperates with the pressure part 741 of the movable seat 721 in the release position, so that the movable part 74 rotates at a set angle, so that the second clamping plate 742 moves away from the first clamping plate 73, and the metal wire 10 clamped between the first pressure plate and the second pressure plate can fall and be released.

[0110] One working process of the wire output mechanism 7: The movable seat 721 is in the initial position. The first pressure block 76 presses the pressure-receiving part 741, causing the second clamping plate 742 and the first clamping plate 73 to form a clamping opening 781 for inserting the wire 10. After the vertical part 731 of the wire 10 is inserted into the clamping opening 781, the conveying assembly 72 operates, and the movable seat 721 moves to the release position. At this time, the first pressure block 76 no longer presses the pressure-receiving part 741. Under the action of the elastic reset member 75, the second clamping plate 742 rotates towards the first clamping plate 73, clamping the wire 10 located between the first clamping plate 73 and the second clamping plate 742. When the movable seat 721 moves to the release position, the second pressure block 77 presses the pressure-receiving part 741, and the second clamping plate 742 rotates away from the first clamping plate 73. The wire 10 is no longer clamped and falls out normally. Compared with the prior art, the wire output mechanism 7 of this application has a simple and reliable structure and will not cause the wire 10 to bend during conveying.

[0111] like Figure 20 As shown, in this embodiment, a transfer component 6 is also included. The transfer component 6 cooperates with the storage box 5 and is used to drive the storage box 5 to move vertically, tilt, or move horizontally.

[0112] In practical applications, the translation component 4 and the transfer component 6 can adopt various existing drive forms, such as ball screw 722 pairs, electric push rods, cylinders, etc.

[0113] like Figure 15 , 16 As shown in 18 and 19, in this embodiment, the first clamping plate 73 has a vertical portion 731, and the second clamping plate 742 has a clamping portion 7421 that cooperates with the vertical portion 731. The clamping portion 7421 is offset from the rotation axis of the movable member 74. When the movable seat 721 switches from the intermediate position to the initial position, the movable member 74 rotates, and the clamping portion 7421 is offset in the vertical direction, exposing the clearance space 782 for the metal wire 10 to move horizontally to the vertical portion 731.

[0114] The offset design allows the second clamping plate 742 to have a large offset after rotation, which facilitates the formation of sufficient clearance space 782 for the metal wire 10 to pass through.

[0115] In practical applications, at least one of the clamping part 7421 or the vertical part 731 is made of flexible material.

[0116] In this embodiment, at least one of the clamping portion 7421 or the vertical portion 731 is made of a flexible material, or at least one of the clamping portion 7421 or the vertical portion 731 has a flexible pad 7422 that cooperates with the metal wire 10. The design of the flexible material or the flexible pad 7422 can protect the metal wire 10 and prevent it from being pinched or damaged.

[0117] In practical applications, the elastic reset element 75 can be an elastic element such as a torsion spring, a compression spring, or a tension spring. In this embodiment, it is a torsion spring.

[0118] In practical applications, the conveying component 72 can be an electric push rod, and the movable seat 721 is fixed on the movable rod of the electric push rod.

[0119] like Figure 15 , 16 As shown in Figures 18 and 19, in this embodiment, the output frame 71 has a limiting guide rail 711, the movable seat 721 has a threaded hole 7211, and the conveying assembly 72 further has:

[0120] A lead screw 722 is rotatably mounted on an output frame 71. The lead screw 722 passes through a movable seat 721 and engages with a threaded hole 7211.

[0121] The drive motor 723 is used to drive the lead screw 722 to rotate.

[0122] The limiting guide rail 711 is used to prevent the moving seat 721 from rotating circumferentially. In actual use, the limiting guide rail 711 can take many forms, such as a strip groove, a strip-shaped track structure, etc.

[0123] In this embodiment, the pressure-receiving part 741 is a columnar structure. The pressure-receiving part 741 is rotatably mounted on the rotating member. Both the first pressure block 76 and the second pressure block 77 have arc-shaped grooves 761. The outer surface of the rotating member cooperates with the arc-shaped grooves 761.

[0124] like Figures 9-12 As shown, one end of the base 81 of the wire feed box 8 is the working end 811. The base 81 has a limiting channel 812 that extends to the working end 811. The base 81 also has a strip hole 813. The length direction of the strip hole 813 is the same as the length direction of the limiting channel 812. The pushing rack 821 of the wire pusher block 82 protrudes from the strip hole 813. The wire pusher block 82 has a pushing part 822 corresponding to the limiting channel 812. The wire pusher block 82 can move along the length direction of the strip hole 813. The wire 10 is used to pass through the limiting channel 812. One end of the wire 10 cooperates with the pushing part 822.

[0125] like Figure 12 As shown, in this embodiment, the strip hole 813 is located at the end of the base 81 away from the working end 811.

[0126] The above description is only a preferred embodiment of the present utility model and does not limit the scope of patent protection of the present utility model. Any equivalent structural transformations made based on the content of the present utility model specification and drawings, whether directly or indirectly applied to other related technical fields, are similarly included within the scope of protection of the present utility model.

Claims

1. A wire feeding mechanism for cooperating with a wire feeding box, the wire feeding box comprising a hollow base and a wire pushing block slidably mounted on the base, the wire pushing block having a pushing rack, the wire feeding box for receiving a wire, and the wire pushing block moving to move the wire off the base, characterized in that, The wire feeding mechanism includes: Feeder frame; A tray is movably mounted on the feeder frame. The tray has a loading work position and a feeding work position. The tray has a mounting groove for placing the wire feeding box. The first drive component is used to drive the pallet to move on the feeder frame, so that the pallet switches between the loading position and the feeding position. The rotating tooth is rotatably mounted on one side of the feeder frame. When the tray containing the wire feeding box is in the feeding position, the rotating tooth can mesh with the pushing rack of the wire pusher block after it rotates. The second drive assembly is used to drive the rotating teeth to rotate, thereby moving the wire pusher block and removing the metal wire from the base.

2. The wire feeding mechanism as described in claim 1, characterized in that, It also includes a mounting bracket fixed relative to the feeder frame, the mounting bracket being provided with a rack and pinion positioning structure, the rack and pinion positioning structure being used to limit the movement position of the push rack.

3. The wire feeding mechanism as described in claim 2, characterized in that, The wire feeding mechanism includes a controller, which is electrically connected to the first drive assembly and the second drive assembly. The rack positioning structure includes: The sensing sensor is mounted on the mounting bracket. A rotating frame is rotatably mounted on a mounting bracket in the middle. Each end of the rotating frame has a sensing end and a trigger end. The trigger end is close to the mounting slot, while the sensing end is away from the mounting slot and adjacent to the sensing sensor. The rotating frame has an initial working position and a trigger working position. In the initial working position, the sensing end is offset from the sensing sensor, and the sensing sensor is not triggered. In the trigger working position, the sensing end moves closer to the sensing sensor, and the sensing sensor is triggered. At this time, the controller controls the second drive component to stop working. When the rotating gear rotates, it drives the rack to move a set distance and then contacts the trigger end, thus driving the rotating frame to rotate and switch to the trigger working position.

4. The wire feeding mechanism as described in claim 3, characterized in that, The rotating frame is provided with a counterweight at or near the sensing end, and the counterweight is used to make the rotating frame have a rotational tendency to maintain the initial working position. The counterweight includes a screw rod screwed onto the rotating frame and a counterweight part disposed on the screw rod. The sensing sensor is a Hall sensor, and the sensing end has a magnet; alternatively, the sensing sensor is a photoelectric sensor.

5. The wire feeding mechanism as described in claim 2, characterized in that, The feeding frame has a wire outlet channel communicating with the end of the mounting groove, the wire outlet channel being used for the passage of metal wire, and the feeding frame is also provided with a wire clamping structure, the wire clamping structure including: A chute is installed on the feeder frame and located on one side of the wire outlet channel; A slider is slidably disposed on the groove. The slider is used to move closer to or away from the wire outlet channel. When the slider moves closer to the wire outlet channel, the slider clamps the metal wire. When the slider moves away from the wire outlet channel, the slider no longer clamps the metal wire. The third driving mechanism is used to move the slider.

6. The wire feeding mechanism as described in claim 5, characterized in that, The slider has a drive seat, the drive seat has a strip-shaped drive groove, and the third drive mechanism includes a drive motor and a drive wheel eccentrically mounted on the output shaft of the drive motor. The drive wheel is set on the strip-shaped drive groove. When the drive motor rotates, it can drive the drive wheel to rotate eccentrically, so that the drive seat and the slider reciprocate.

7. The wire feeding mechanism as described in claim 2, characterized in that, The second drive assembly is a motor assembly. The second drive assembly is mounted on a feeder frame or a mounting frame. The rotating gear is rotatably mounted on the mounting frame or directly fixed on the output shaft of the second drive assembly. The tray has a rack portion, and the first drive assembly includes a feeding motor and a drive gear driven by the feeding motor, the drive gear meshing with the rack portion.

8. The wire feeding mechanism as described in claim 7, characterized in that, The mounting groove and rack are located on the upper and lower sides of the tray, respectively.

9. The wire feeding mechanism as described in claim 1, characterized in that, The wire feeding mechanism also includes a first limit switch and a second limit switch. When the tray is in the loading position, the first limit switch is triggered, and when the tray is in the feeding position, the second limit switch is triggered.

10. A metal wire shaping device, characterized in that, The invention includes a wire feeding box and a wire feeding mechanism as described in any one of claims 1 to 9. The wire feeding box includes a hollow base and a wire pushing block slidably mounted on the base. The wire pushing block has a pushing rack. The wire feeding box is used to hold a wire. When the wire pushing block moves, it can drive the wire to move out of the base.

Images