Spring coil winding device

Abstract

In order to solve the problems that in the prior art, the manual wire winding efficiency of an NCMA structure urinary stent is low, wire winding is not tight and the like, the spring coil winding device comprises a metal wire supply device, a motor assembly, a winding mold and a damping piece, the motor assembly comprises a first motor, a horizontal driving piece and a guide rail sliding table, and the guide rail sliding table comprises a sliding block. A first pulley is arranged on the sliding block, the first motor drives the winding mold to rotate, the horizontal driving piece drives the sliding block to move on the guide rail sliding table, and the guide rail sliding table extends in the direction parallel to the rotating axis of the winding mold. The metal wire supply device is used for leading out metal wires, and the metal wires penetrate through the damping piece and the first pulley to be fixed to the winding mold. According to the spring coil winding device provided by the utility model, the horizontal drive drives the first pulley to move relative to the position of the winding mold, so that the compactness of a metal wire on the winding mold is controlled, the realization of tight wire winding is facilitated, and in addition, manpower is saved and the production efficiency is improved while the wire winding compactness is controlled.

Description

Technical Field

[0001] The utility model belongs to the technical field of wire winding devices for medical devices, and particularly relates to a spring coil winding device. Background Art

[0002] The urinary stent with NCMA structure is a mesh structure stent woven from nitinol memory alloy wire, which has good shape memory effect and superelasticity. Therefore, this stent can be used clinically to deal with prostate or ureteral stenosis and play a supporting role when placed in the ureter or prostate.

[0003] The main body of the urinary stent with NCMA structure is a closely wound nitinol alloy wire. At present, in the production of this stent, manual wire winding and weaving are mostly used. Since this stent has high requirements for the tightness of wire winding, unstable wire winding tension and weaving points will lead to changes in the weaving angle, which will in turn affect the structural uniformity and mechanical properties of the stent. Therefore, during the manual wire winding process, the wire needs to be tightly held, resulting in low manual wire winding efficiency and problems such as loose wire winding. In addition, this process is also likely to cause damage to the operator's hands. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a spring coil winding device aiming at the problems of low manual wire winding efficiency and loose wire winding in the prior art for the urinary stent with NCMA structure.

[0005] The technical solutions adopted by the utility model to solve the above technical problems are as follows:

[0006] Provide a spring coil winding device, including a metal wire supply device, a motor assembly, a winding die and a damping member. The motor assembly includes a first motor, a horizontal driving member and a guide rail slider. The guide rail slider includes a slider, and a first pulley is arranged on the slider. The winding die is connected to the first motor, and the first motor drives the winding die to rotate. The horizontal driving member is used to drive the displacement of the slider on the guide rail slider, and the guide rail slider extends along a direction parallel to the rotation axis of the winding die; the metal wire supply device is used to lead out the metal wire, and the metal wire passes through the damping member and the first pulley in sequence and is fixed on the winding die.

[0007] The horizontal driving member is a second motor.

[0008] The guide rail slider is provided with a lead screw, the lead screw extends along a direction parallel to the rotation axis of the winding die, the lead screw is rotatably arranged on the guide rail slider, the second motor is connected to the lead screw, and the lead screw passes through the slider and is in threaded cooperation with the slider.

[0009] As described above, the damping member includes a damping block and an insertion plate. The number of the damping blocks is multiple, and the multiple damping blocks are arranged on the surface of the insertion plate in an alternating and spaced manner. The damping block is in a cylindrical structure, and an annular groove is arranged on the outer wall of the damping block. The metal wire passes through the annular groove and between the multiple damping blocks.

[0010] As described above, the winding die is provided with a winding area, and threaded holes are arranged at the edge positions of the winding area. The threaded holes are used to fix the metal wire after the first pulley is limited.

[0011] As described above, it further includes a controller and a control panel. The control panel includes a forward rotation button and a reverse rotation button. The forward rotation button is used to control the first motor to rotate clockwise, and the reverse rotation button is used to control the first motor to rotate counterclockwise.

[0012] As described above, the control panel further includes an adjustment block, and the adjustment block is used to adjust the relative rotation speeds of the first motor and the second motor.

[0013] As described above, it further includes a light shielding sheet and a photoelectric switch. The light shielding sheet is arranged at the side wall position of the slider, and the photoelectric switch is arranged on the guide rail slide table. The photoelectric switch is electrically connected to the controller. When the slider runs to the winding end point, the light shielding sheet is inserted into the photoelectric switch.

[0014] As described above, it further includes a base and multiple fixing frames. The motor assembly, the winding die, and the damping member are arranged on one surface of the base. The other surface of the base is fixedly connected to the multiple fixing frames, and the metal wire supply device is arranged on the fixing frames.

[0015] As described above, a second pulley is arranged at one end of the base close to the damping member, and the metal wire on the metal wire supply device passes through the second pulley.

[0016] The beneficial effects of the present utility model are as follows:

[0017] The spring coil winding device provided by the present utility model includes a metal wire supply device, a motor assembly, and a winding die. The motor assembly includes a first motor, a horizontal driving member, and a guide rail slide table. The guide rail slide table includes a slider, and a first pulley is arranged on the slider. The winding die is connected to the first motor. During the winding operation, the horizontal driving drives the relative position of the first pulley relative to the winding die to move, thereby controlling the tightness of the metal wire on the winding die, which is beneficial to realizing tight wire winding. In addition, while controlling the tightness of the wire winding, it saves labor and improves the production efficiency. Description of the Drawings

[0018] Figure 1It is a schematic diagram of the working principle of the spring coil winding device provided by the present utility model;

[0019] Figure 2 It is a schematic diagram of the overall structure of the spring coil winding device provided by the present utility model;

[0020] Figure 3 It is a schematic diagram of the guide rail and slide table structure provided by the present utility model;

[0021] Figure 4 It is a schematic diagram of the control panel structure provided by the present utility model;

[0022] Figure 5 It is a schematic diagram of the damping member provided by the present utility model.

[0023] The reference numerals in the accompanying drawings of the specification are as follows:

[0024] 1, base; 2, winding die; 21, winding area; 3, damping member; 31, damping block; 311, annular groove; 32, insertion plate; 4, first motor; 5, second motor; 6, guide rail and slide table; 61, slider; 611, first pulley; 62, lead screw; 7, control panel; 71, forward rotation button; 72, reverse rotation button; 73, adjustment block; 8, light shielding sheet; 9, photoelectric switch; 10, fixing bracket; 11, wire supply device; 12, second pulley; 13, fixture. Specific embodiments

[0025] In order to make the technical problems, technical solutions and beneficial effects solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "radial", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0027] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] Referring to Figure 2 , an embodiment of the present utility model provides a spring coil winding device, including a wire supply device 11, a motor assembly, a winding die 2, and a damping member 3. The motor assembly includes a first motor 4, a horizontal driving member, and a guide rail slide 6. The guide rail slide 6 includes a slider 61, and a first pulley 611 is arranged on the slider 61. The winding die 2 is connected to the first motor 4, and the first motor 4 drives the winding die 2 to rotate. The horizontal driving member is used to drive the displacement of the slider 61 on the guide rail slide 6, and the guide rail slide 6 extends along a direction parallel to the rotation axis of the winding die 2; the wire supply device 11 is used to lead out the wire, and the wire sequentially passes through the damping member 3 and the first pulley 611 and is fixed on the winding die 2.

[0029] Specifically, the spring coil winding device provided by the present utility model includes a wire supply device 11, a motor assembly, and a winding die 2. The motor assembly includes a first motor 4, a horizontal driving member, and a guide rail slide 6. The guide rail slide 6 includes a slider 61, and a first pulley 611 is arranged on the slider 61. The winding die 2 is connected to the first motor 4. During the winding operation, the horizontal driving drives the position of the first pulley 611 relative to the winding die 2 to move, thereby controlling the tightness of the wire on the winding die 2, which is beneficial to realizing tight wire winding. In addition, while controlling the tightness of the wire winding, it saves manpower and improves the production efficiency.

[0030] Specifically, according to the actual tightness requirement of the spring coil, the relative position between the first pulley 611 driven by the horizontal driving member and the winding die 2 can be purposefully set to adjust the tightness; the spring coil winding device described in this application is not only used for urinary stents with NCMA structures or medical stents with related braided structures, but also can be used for the preparation of other mesh wire winding structural parts.

[0031] In one embodiment, the horizontal driving member is a second motor 5.

[0032] Specifically, the function of the horizontal driving member is mainly to drive the slider 61 to move back and forth on the guide rail slider 6. In a preferred embodiment, the horizontal driving member is selected from the second motor 5. Additionally, in the present application, the horizontal driving member can also be other power structural members capable of driving the slider 61 to move.

[0033] In one embodiment, a fixture 13 is further included, and the fixture 13 is used for clamping and fixing the winding mold 2.

[0034] Specifically, after winding is completed, the winding mold 2 is taken out from the fixture 13 for other processing procedures. At this time, another winding mold 2 can be placed for replacement to start a new winding process; the distance between the two fixtures 13 on the winding mold 2 is 360 mm.

[0035] In one embodiment, the guide rail slider 6 is provided with a lead screw 62. The lead screw 62 extends along a direction parallel to the rotation axis of the winding mold 2. The lead screw 62 is rotatably arranged on the guide rail slider 6. The second motor 5 is connected to the lead screw 62, and the lead screw 62 passes through the slider 61 and is in threaded cooperation with the slider 61.

[0036] Specifically, the slider 61 passes through the slide rail. The second motor 5 drives the slider 61 to slide back and forth through the lead screw 62, and at the same time realizes the function of the first pulley 611 feeding wire for the winding mold 2; the threaded cooperation setting of the lead screw 62 and the slider 61 facilitates the slider 61 to move to the corresponding position following the second motor 5.

[0037] Refer to Figure 5 , in one embodiment, the damping member 3 includes a damping block 31 and an insertion plate 32. The number of the damping blocks 31 is multiple. The multiple damping blocks 31 are arranged on the surface of the insertion plate 32 at staggered intervals. The damping block 31 is a cylindrical structure. An annular groove 311 is provided on the outer wall of the damping block 31. The metal wire passes through the annular groove 311 and between the multiple damping blocks 31.

[0038] Specifically, the annular groove 311 is provided on the damping block 31. When the metal wire passes through the damping member 3, the annular groove 311 on the damping block 31 can accommodate and limit the metal wire to prevent the metal wire from falling off the damping member 3. During the wire winding operation, the multiple damping blocks 31 arranged at staggered intervals are used to tighten the metal wire during the subsequent wire feeding process.

[0039] In one embodiment, the winding mold 2 is provided with a winding area 21. Threaded holes are provided at the edge position of the winding area 21, and the threaded holes are used to fix the metal wire after the first pulley 611 is limited.

[0040] Specifically, in the present application, a winding area 21 is provided, and threaded holes are provided at the edge position of the winding area 21 to fix the metal wire, so as to realize the winding operation of the metal wire by the first motor 4 driving the winding die 2.

[0041] Specifically, the total length of the winding die 2 is 370 mm. The diameter of the winding die can be specifically selected according to the specifications of the metal wire product to be wound. The length of the winding area 21 of the winding die 2 is 100 mm. The length of the winding area 21 in the present application is not limited to 100 mm. In specific operations, the size of the winding area 21 can be adjusted accordingly.

[0042] Refer to Figure 4 , in an embodiment, a controller and a control panel 7 are further included. The control panel 7 includes a forward rotation button 71 and a reverse rotation button 72. The forward rotation button 71 is used to control the first motor 4 to rotate clockwise, and the reverse rotation button 72 is used to control the first motor 4 to rotate counterclockwise.

[0043] Specifically, the first motor 4 is controlled to rotate clockwise by the forward rotation button 71, and the first motor 4 is controlled to rotate counterclockwise by the reverse rotation button 72. Thus, in the winding process of the spring coil, the forward rotation button 71 and the reverse rotation button 72 are operated to control the winding direction of the metal wire.

[0044] In an embodiment, the control panel 7 further includes a pause button, an indicator light, and a display module.

[0045] Specifically, the pause button is used to control the running state of the spring coil winding device. In addition, the indicator light on the control panel 7 is on when the spring coil winding device is in the running state.

[0046] In an embodiment, the control panel 7 further includes an adjustment block 73. The adjustment block 73 is used to adjust the relative rotation speeds of the first motor 4 and the second motor 5.

[0047] The adjustment block 73 adjusts the relative rotation speeds of the first motor 4 and the second motor 5 to adjust the spacing between the wound metal wires, thereby controlling the tightness of the metal wire.

[0048] Refer to Figure 3 , in an embodiment, a light shielding sheet 8 and a photoelectric switch 9 are further included. The light shielding sheet 8 is disposed on the side wall of the slider 61, and the photoelectric switch 9 is disposed on the guide rail slider 6. The photoelectric switch 9 is electrically connected to the controller. When the slider 61 runs to the winding end point, the light shielding sheet 8 is inserted into the photoelectric switch 9.

[0049] Specifically, when the first motor 4 drives the winding die 2 to complete winding, the first pulley 611 driven by the second motor 5 stops feeding wire to the winding die 2. At this time, the slider 61 runs to the winding end point, that is, the light-shielding sheet 8 reaches the photoelectric switch position through the lead screw 62 under the drive of the slider 61, and the light-shielding sheet 8 triggers the photoelectric switch 9 to end the winding process.

[0050] In an embodiment, it further includes a base 1 and a plurality of fixing frames 10. The motor assembly, the winding die 2, and the damping member 3 are arranged on one side of the base 1, and the other side of the base 1 is fixedly connected to the plurality of fixing frames 10. A wire supply device 11 is arranged on the fixing frame 10.

[0051] After being fixed to the base 1, the fixing frame 10 is used to support the base 1. A plurality of turning wheels are also arranged on the fixing frame 10, thereby realizing the overall mobility of the spring coil winding device. The height of the fixing frame 10 generally needs to match the height of the operator when sitting, so as to facilitate the operation of the operator. In the preferred embodiment of the present application, the height of the fixing frame 10 is 1.2 m;

[0052] In addition, a wire supply device 11 for leading out the wire is arranged on the fixing frame 10 close to the damping member 3. Specifically, the wire is led out by the wire supply device 11, passes through the second pulley and the damping member 3, reaches the position of the first pulley 611, is fixed through the threaded hole after being limited by the first pulley 611, and then the first motor 4 and the second motor 5 work together to wind the spring coil (as Figure 1 )

[0053] In an embodiment, a second pulley 12 is arranged at one end of the base 1 close to the damping member 3, and the wire on the wire supply device 11 passes through the second pulley 12.

[0054] The setting of the second pulley 12 facilitates the wire supply device 11 to lead out the wire for transmission to other structural members.

[0055] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A spring coil winding device, characterized in that: It includes a metal wire supply device, a motor assembly, a winding mold and a damping member. The motor assembly includes a first motor, a horizontal driving member and a guide rail slide. The guide rail slide includes a slider, and the slider is provided with a first pulley. The winding mold is connected to the first motor, and the first motor drives the winding mold to rotate. The horizontal driving member is used to drive the slider to move on the guide rail slide. The guide rail slide extends in a direction parallel to the rotation axis of the winding mold. The metal wire supply device is used to lead out the metal wire, and the metal wire passes through the damping member and the first pulley in sequence and is fixed on the winding mold.

2. A spring coil winding device according to claim 1, characterized in that: The horizontal driving member is a second motor.

3. A spring coil winding device according to claim 2, characterized in that: The guide rail slide is provided with a screw rod, which extends in a direction parallel to the rotation axis of the winding mold, and is rotatably arranged on the guide rail slide. The second motor is connected to the screw rod, and the screw rod passes through the slider and is threadedly engaged with the slider.

4. A spring coil winding device according to claim 1, characterized in that: The damping member includes a damping block and an insert plate. There are multiple damping blocks, which are arranged on the surface of the insert plate at staggered intervals. The damping block is a cylindrical structure, and an annular groove is arranged on the outer wall of the damping block. The metal wire passes through the multiple damping blocks through the annular groove.

5. A spring coil winding device according to claim 1, characterized in that: The winding mold is provided with a winding area, and a threaded hole is provided at the edge of the winding area. The threaded hole is used to fix the metal wire after the first pulley is limited.

6. A spring coil winding device according to claim 2, characterized in that: It also includes a controller and a control panel, wherein the control panel includes a forward button and a reverse button, wherein the forward button is used to control the first motor to rotate clockwise, and the reverse button is used to control the first motor to rotate counterclockwise.

7. A spring coil winding device according to claim 6, characterized in that: The control panel further includes an adjustment block, and the adjustment block is used to adjust the relative rotation speed of the first motor and the second motor.

8. A spring coil winding device according to claim 6, characterized in that: It also includes a shading sheet and a photoelectric switch, wherein the shading sheet is arranged on the side wall of the slider, the photoelectric switch is arranged on the guide rail slide, the photoelectric switch is electrically connected to the controller, and when the slider runs to the winding end point, the shading sheet is inserted into the photoelectric switch.

9. A spring coil winding device according to claim 1, characterized in that: It also includes a base and a plurality of fixing frames, the motor assembly, the winding mold and the damping member are arranged on one surface of the base, the other surface of the base is fixedly connected to the plurality of fixing frames, and the fixing frames are provided with the metal wire supply device.

10. A spring coil winding device according to claim 9, characterized in that: A second pulley is disposed at one end of the base close to the damping member, and the metal wire on the metal wire supply device passes through the second pulley.

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