Wire feeding mechanism and wire shaping apparatus

Abstract

The application discloses a metal wire feeding mechanism and a metal wire shaping device. The metal wire feeding mechanism comprises a feeding rack, a tray slidably mounted on the feeding rack and provided with a mounting groove, a driving assembly for moving the tray on the feeding rack, a mounting frame mounted on the tray, a transmission gear rotatably mounted on the mounting frame and engaged with a pushing rack, and a fixed rack fixed on the feeding rack. During the movement of the tray from a loading working position to a feeding working position, after the transmission gear moves to be engaged with the fixed rack, the transmission gear is engaged with the fixed rack and the pushing rack at the same time, the transmission gear rotates to move the pushing block, and the metal wire is moved out of the base. The application does not need manual pushing and does not need to set a second driving assembly to move the pushing block, and the whole structure is simple and reliable.

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 the operation relatively inconvenient. Utility Model Content

[0004] This utility model addresses the above-mentioned problems and overcomes at least one deficiency by proposing a metal wire feeding mechanism and a metal wire shaping device.

[0005] The technical solution adopted by this utility model is as follows: 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 hold a wire. When the wire pushing block moves, it can drive the wire to move out of the base. The wire feeding mechanism includes: Feeder frame; A tray is slidably mounted on the feeder frame. The tray has a mounting groove for placing the wire feed box. The tray has a loading position and a feeding position. A drive assembly is used to move the tray on the feeder frame and switch between the loading station and the feeding station. Mounting bracket, mounted on the tray; The transmission gear is rotatably mounted on the mounting frame. When the wire feeding box is inserted into the tray in the loading position, the transmission gear meshes with the push rack. A fixed rack is fixed on the feeder frame and is used to cooperate with the transmission gear. During the process of the pallet moving from the loading position to the feeding position, after the transmission gear moves to mesh with the fixed rack, the transmission gear simultaneously meshes with the fixed rack and the push rack. The transmission gear rotates, driving the wire pusher block to move, so that the metal wire is removed from the base.

[0006] This application features a transmission gear and a fixed rack that work together. During the process of the drive assembly moving the tray from the loading position to the feeding position, the transmission gear can simultaneously mesh with the fixed rack and the push rack. The fixed rack causes the transmission gear to rotate. Since the fixed rack is stationary, the rotation of the transmission gear can drive the push rack to move, thereby moving the wire pusher block and removing the metal wire from the base. Compared with the prior art, no manual pushing is required, and no second set of drive assemblies is needed to push the wire pusher block. The entire structure is simple and reliable.

[0007] In one embodiment of the present invention, the mounting bracket is rotatably mounted on the tray.

[0008] This setup makes it easy to install the wire feeder box at the loading station. For example, the mounting bracket can be lifted and the wire feeder box placed into the mounting slot.

[0009] In one embodiment of this utility model, the transmission gear is located at one end of the rotation axis away from the mounting bracket.

[0010] In one embodiment of the present invention, the tray has a rack portion, and the driving assembly includes a feeding motor and a driving gear driven by the feeding motor, the driving gear meshing with the rack portion.

[0011] The feeding motor enables the pallet to move back and forth.

[0012] 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.

[0013] In one embodiment of the present invention, the feeding frame has a feeding track, and the tray is slidably mounted on the feeding track.

[0014] In one embodiment of the present invention, a first limit switch and a second limit switch are also included. 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.

[0015] This application also discloses a wire shaping device, including the wire feeding box and the wire feeding mechanism described above.

[0016] In one embodiment of this utility model, one end of the base is a working end, the base has a limiting channel extending to the working end, the base also has a strip-shaped hole, the length direction of the strip-shaped hole 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, and the metal wire is used to pass through the limiting channel, one end of the metal wire cooperates with the pushing part.

[0017] In one embodiment of this utility model, the strip hole is located at the end of the base away from the working end.

[0018] The beneficial effects of this utility model are as follows: This application sets up a transmission gear and a fixed rack that cooperate with each other. During the process of the drive assembly moving the tray from the loading position to the feeding position, the transmission gear can simultaneously mesh with the fixed rack and the push rack. The fixed rack causes the transmission gear to rotate. Since the fixed rack is stationary, the rotation of the transmission gear can drive the push rack to move, thereby moving the wire pusher block and removing the metal wire from the base. Compared with the prior art, there is no need for manual pushing or a second set of drive assemblies to push the wire pusher block. The whole structure is simple and reliable. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the wire output mechanism when the movable seat is in the initial position; Figure 2 This is a schematic diagram of the wire output mechanism when the movable seat is in the middle position; Figure 3 This is a schematic diagram of the wire output mechanism when the movable seat is in the release position; Figure 4 This is an exploded view of the metal wire output mechanism; Figure 5 This is a schematic diagram of the wire shaping device when the moving seat is in its initial position; Figure 6 This is a schematic diagram of the wire shaping device when the movable seat is in the middle position; Figure 7 This is a schematic diagram of the wire shaping device when the movable seat is in the release position; Figure 8 This is a schematic diagram of the wire feeding mechanism when the pallet is in the loading position and the wire feeding box is not installed; Figure 9 This is an exploded view of the wire feeding mechanism; Figure 10 This is a diagram of a tray; Figure 11 This is a schematic diagram of the wire feeder box when the wire is pushed out; Figure 12 This is a diagram of the wire feeder box when the wire has not been pushed out. Figure 13 This is a top view of the wire feeder box; Figure 14 yes Figure 13 AA section view in the middle; Figure 15 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; Figure 16 This is a schematic diagram showing the transmission gear simultaneously engaging with both the driving rack and the stationary rack; Figure 17 This is a schematic diagram of the wire feeding mechanism when the pallet is in the feeding work position; Figure 18 This is a diagram showing the tray after feeding is completed and the tray has been reset. Figure 19 This is a schematic diagram of a wire shaping device when the pallet is in the loading position and the wire feeding box is installed. Figure 20 This is a schematic diagram of a wire forming device when the transmission gear simultaneously engages with both the pushing rack and the fixed rack. Figure 21 This is a schematic diagram of a wire shaping device when the pallet is in the feeding work position.

[0020] The labels for the attached figures are as follows: 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 part; 76. First pressure block; 761. Arc groove; 77. Second pressure block; 781 782. Clamping port; 89. Clearance space; 80. Wire feeding box; 81. Base; 811. Working end; 812. Limiting channel; 813. Strip hole; 82. Wire pusher block; 821. Push rack; 822. Pushing part; 91. Wire feeding mechanism; 91. Feeding frame; 911. Feeding track; 92. Tray; 921. Mounting slot; 922. Rack part; 93. Drive assembly; 931. Feeding motor; 932. Drive gear; 94. Mounting bracket; 95. Transmission gear; 96. Fixed rack; 97. First limit switch; 98. Second limit switch; 10. Wire. Detailed Implementation

[0021] 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.

[0022] 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.

[0023] 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.

[0024] The present invention will now be described in detail with reference to the accompanying drawings.

[0025] like Figure 5 , 6 As shown in Figure 7, this embodiment discloses a metal wire shaping device, including a metal wire feeding box 8, a metal wire feeding mechanism 9, and a metal wire output mechanism 7.

[0026] like Figures 1-7 As shown, in this embodiment, a wire output mechanism 7 includes: Output rack 71; 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. The first clamp 73 is fixed on the movable base 721; 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. 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. 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. 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.

[0027] One working process of the wire output mechanism 7: When the movable seat 721 is in the initial position, the first pressure block 76 presses the pressure-receiving part 741, so that the second clamping plate 742 and the first clamping plate 73 form a clamping opening 781 for inserting the metal wire 10. After the vertical part 731 of the metal wire 10 is inserted into the clamping opening 781. When the conveying assembly 72 is working, the moving seat 721 moves to the release position side. At this time, the first pressure block 76 no longer presses the pressure part 741. Under the action of the elastic reset member 75, the second clamping plate 742 rotates toward the first clamping plate 73, clamping the metal 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-bearing part 741, and the second clamping plate 742 rotates away from the first clamping plate 73. The metal wire 10 is no longer clamped and falls out and is released normally.

[0028] 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 transport.

[0029] like Figure 1 As shown, 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.

[0030] 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.

[0031] In practical applications, at least one of the clamping part 7421 or the vertical part 731 is made of flexible material.

[0032] like Figure 1 and 4 As shown, in this embodiment, 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.

[0033] 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.

[0034] 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.

[0035] like Figure 1 and 4 As shown, in this embodiment, the output frame 71 has a limiting guide rail 711, the moving seat 721 has a threaded hole 7211, and the conveying assembly 72 further has: 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. The drive motor 723 is used to drive the lead screw 722 to rotate.

[0036] 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.

[0037] like Figure 2 As shown, in this embodiment, the pressure-receiving part 741 is a columnar structure, and the pressure-receiving part 741 is rotatably mounted on the rotating member. The first pressure block 76 and the second pressure block 77 both have arc-shaped grooves 761, and the outer surface of the rotating member cooperates with the arc-shaped grooves 761.

[0038] like Figure 7 As shown, the wire shaping equipment also includes: Main frame 1, with guide rail 2; The shaping mechanism 3 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. The metal wire feeding mechanism 9 is used to transport the metal wire 10 to the shaping mechanism 3. The shaping mechanism 3 is used to shape the metal wire 10. In actual use, the shaping mechanism 3 can also adopt the structure of the prior art, such as the structure in the patent document in the background art. Translation component 4 is used to drive the shaping mechanism 3 to move towards the wire output mechanism 7, so that the straight part of the wire 10 on the shaping mechanism 3 that has not been shaped is located at the clamping port 781 of the wire output mechanism 7. The storage box 5 is located on one side of the wire output mechanism 7 and is used to receive the wire 10 when the moving seat 721 moves to the release position. like Figure 5 , 6 As shown in Figure 7, this embodiment also includes a transfer component 6, which works in conjunction with the storage box 5 to drive the storage box 5 to move vertically, tilt, or move horizontally.

[0039] 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.

[0040] like Figure 11 , 12 As shown in Figures 13 and 14, in this embodiment, the wire feeding box 8 includes 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 moves, it can drive the wire 10 to move out of the base 81. One end of the base 81 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 that corresponds to the limiting channel 812. The wire pusher block 82 can move along the length direction of the strip hole 813. The metal wire 10 is used to pass through the limiting channel 812. One end of the metal wire 10 cooperates with the pushing part 822.

[0041] like Figure 11 and 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.

[0042] In this embodiment, the wire feeding mechanism 9 is used to cooperate with the wire feeding box 8, such as... Figures 8-9 As shown in Figures 15-21, the wire feeding mechanism 9 includes: Feeder frame 91; The tray 92 is slidably mounted on the feeder frame 91. The tray 92 has a mounting groove 921 for placing the wire feed box 8. The tray 92 has a loading station and a feeding station. Drive assembly 93 is used to move pallet 92 on feeder frame 91 at the loading station. Figure 8 and15 ) and feeding station ( Figure 17 Switch between ) Mounting bracket 94 is mounted on tray 92; The transmission gear 95 is rotatably mounted on the mounting frame. When the wire feeding box 8 is inserted into the tray 92 in the loading position, the transmission gear 95 meshes with the push rack. The fixed rack 96 is fixed on the feeder frame 91 and is used to cooperate with the transmission gear 95. During the process of the pallet 92 moving from the loading position to the feeding position, after the transmission gear 95 moves to mesh with the fixed rack 96, the transmission gear 95 simultaneously meshes with the fixed rack 96 and the push rack 821. The transmission gear 95 rotates, driving the wire pusher block 82 to move, so that the metal wire 10 is removed from the base 81.

[0043] This application provides a transmission gear 95 and a fixed rack 96 that cooperate with each other. During the process of the drive assembly 93 driving the tray 92 to move from the loading position to the feeding position, the transmission gear 95 can simultaneously mesh with the fixed rack 96 and the push rack 821. The fixed rack 96 causes the transmission gear 95 to rotate. Since the fixed rack 96 is stationary, the rotation of the transmission gear 95 can drive the push rack 821 to move, thereby moving the wire pusher block 82 and causing the metal wire 10 to be removed from the base 81. Compared with the prior art, there is no need for manual pushing, nor is there a need to set up a second set of drive assemblies 93 to push the wire pusher block 82. The whole structure is simple and reliable.

[0044] like Figure 8 and 9 As shown, in this embodiment, the mounting bracket 94 is rotatably mounted on the tray 92.

[0045] This setup makes it convenient to install the wire feed box 8 when the material is being loaded. For example, the mounting bracket 94 can be lifted and the wire feed box 8 can be placed into the mounting slot 921.

[0046] In this embodiment, the transmission gear 95 is located at one end of the rotation axis away from the mounting bracket 94.

[0047] like Figure 8 , 9 As shown in Figure 10, in this embodiment, the tray 92 has a rack portion 922, and the 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.

[0048] The feeding motor 931 enables the reciprocating movement of the tray 92.

[0049] 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.

[0050] like Figure 9 As shown, in this embodiment, the feeding frame 91 has a feeding track 911, and the tray 92 is slidably mounted on the feeding track 911.

[0051] like Figure 8 As shown, in this embodiment, a first limit switch 97 and a second limit switch 98 are also included. When the tray 92 is in the loading position, the first limit switch 97 is triggered, and when the tray 92 is in the feeding position, the second limit switch 98 is triggered.

[0052] In this application, the output frame 71 can be fixed on the main frame 1, or the output frame 71 is part of the main frame 1. Similarly, the feeding frame 91 can be fixed on the main frame 1, or the feeding frame 91 is part of the main frame 1.

[0053] 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 out of the base, characterized in that, The wire feeding mechanism includes: Feeder frame; A tray is slidably mounted on the feeder frame. The tray has a mounting groove for placing the wire feed box. The tray has a loading position and a feeding position. A drive assembly is used to move the tray on the feeder frame and switch between the loading station and the feeding station. Mounting bracket, mounted on the tray; The transmission gear is rotatably mounted on the mounting frame. When the wire feeding box is inserted into the tray in the loading position, the transmission gear meshes with the push rack. A fixed rack is fixed on the feeder frame and is used to cooperate with the transmission gear. During the process of the pallet moving from the loading position to the feeding position, after the transmission gear moves to mesh with the fixed rack, the transmission gear simultaneously meshes with the fixed rack and the push rack. The transmission gear rotates, driving the wire pusher block to move, so that the metal wire is removed from the base.

2. The wire feeding mechanism as described in claim 1, characterized in that, The mounting bracket is rotatably mounted on the tray.

3. The wire feeding mechanism as described in claim 2, characterized in that, The transmission gear is located at one end of the rotation axis away from the mounting bracket.

4. The wire feeding mechanism as described in claim 1, characterized in that, The tray has a rack portion, and the drive assembly includes a feeding motor and a drive gear driven by the feeding motor, the drive gear meshing with the rack portion.

5. The wire feeding mechanism as described in claim 4, characterized in that, The mounting groove and rack are located on the upper and lower sides of the tray, respectively.

6. The wire feeding mechanism as described in claim 1, characterized in that, The feeding frame has a feeding track, and the tray is slidably mounted on the feeding track.

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

8. 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 7. 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.

9. The wire shaping equipment as described in claim 8, characterized in that, 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.

10. The wire shaping equipment as described in claim 9, characterized in that, The strip-shaped hole is located at the end of the base away from the working end.

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