Winding structure for acupuncture needle production

Abstract

The utility model relates to a winding structure for acupuncture needle production, which comprises a handle winding component, a conveying component and a power component, the conveying component fixes a needle body part of an acupuncture needle and enables a needle handle of the acupuncture needle to extend out of the conveying component, and the acupuncture needle and the handle winding component are coaxially arranged. The power assembly can drive the handle winding assembly to move in the axial direction and rotate around the central axis of the handle winding assembly. The handle winding assembly comprises an outer support and a movable chuck, and the movable chuck is arranged at the end, facing the conveying assembly, of the outer support. The movable chuck can clamp a metal wire for handle winding, the movable chuck clamps the metal wire when the handle winding assembly gets close to the conveying assembly, the metal wire is unlocked when handle winding starts, and the metal wire is clamped again when handle winding is completed. According to the winding structure for acupuncture needle production, the whole process work of conveying and winding of acupuncture needles can be automatically completed in the whole process, manual participation is not needed, the structure is simple, cost is low, and handle winding efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of acupuncture needle production, in particular to a winding structure for acupuncture needle production. Background Art

[0002] An acupuncture needle generally consists of a needle body, a needle tip and a needle handle. The needle handle is provided with threads, which allows for convenient lifting, insertion and twisting of the needle when in use. The threads on the needle handle are generally made by injection molding or by winding with metal wire.

[0003] The existing equipment for winding the metal wire around the needle handle of acupuncture needles generally requires manual participation, and most of them cannot automatically complete the handle winding process; and some equipment that can automatically perform the handle winding work has a complex structure and a high cost. Utility Model Content

[0004] The purpose of the utility model is to provide a winding structure for producing acupuncture needles, which is used to solve the above-mentioned problems existing in the prior art.

[0005] In order to solve the above problems, the utility model provides a winding structure for acupuncture needle production, including a handle winding assembly, a conveying assembly and a power assembly. The conveying assembly fixes the needle body part of the acupuncture needle and extends the needle handle of the acupuncture needle outside the conveying assembly. The power assembly can drive the handle winding assembly to move along its axial direction and rotate around its central axis. When the acupuncture needle is coaxial with the handle winding assembly, the acupuncture needle can be inserted into the inner cavity of the handle winding assembly; the handle winding assembly includes an outer bracket and a movable chuck, and the outer bracket is provided with a movable chuck at the end facing the conveying assembly; the movable chuck can clamp the metal wire used for winding the handle and drive the metal wire close to the conveying assembly, unlock the metal wire after starting to wind the handle, and clamp the metal wire again after completing winding the handle.

[0006] The winding structure for acupuncture needle production provided by the utility model also has the following technical features:

[0007] Furthermore, the movable chuck can slide axially relative to the outer bracket and rotate around the central axis of the outer bracket. The movable chuck is rotatably arranged in the groove at the end of the outer bracket through a roller. The groove and the end cover of the outer bracket jointly limit the axial sliding range of the movable chuck outer bracket.

[0008] Furthermore, the movable chuck is fixedly provided with an arc-shaped spline sleeve on the end face facing the conveying component, and the spline sleeve can be embedded in a corresponding arc-shaped spline nut seat on the conveying component. The fitting friction force between the spline sleeve and the nut seat is greater than the fitting friction force between the movable chuck and the roller.

[0009] Furthermore, the arc shape of the inner and outer diameters of the spline sleeve are both parts of a perfect circle, and the arc length of the inner and outer diameters of the spline sleeve is greater than half of the circumference of the perfect circle in which it is located; the arc shape of the spline nut is part of a perfect circle, and the arc length of the arc shape of the spline nut is greater than half of the circumference of the perfect circle in which it is located.

[0010] Furthermore, the inner diameter of the spline sleeve is greater than or equal to the diameter of the needle handle of the acupuncture needle, and the spline sleeve is coaxially arranged with the needle handle of the acupuncture needle when wrapped around the handle.

[0011] Furthermore, in the opening direction of the spline sleeve, a fan-shaped clamping hole is provided on the movable chuck, the center of the long arc of the clamping hole coincides with the axis of the spline sleeve, the diameter of the perfect circle where the long arc of the clamping hole is located is greater than or equal to the diameter of the needle handle of the acupuncture needle, and the short arc of the clamping hole can be clamped with a metal wire.

[0012] Furthermore, the fan-shaped clamping hole is symmetrically arranged with the line connecting the center points of the long and short arcs of the fan-shaped as the axis.

[0013] Furthermore, the winding handle assembly also includes a wire channel, and the wire channel is arranged in an arc shape at a portion close to the movable chuck to prevent the wire from being stuck in the wire channel due to excessive bending.

[0014] Furthermore, the conveying component is provided with a needle groove, a fixing block and a covering, the covering can fix the acupuncture needle in the needle groove, and the fixing block contacts the needle tip of the acupuncture needle.

[0015] Furthermore, the power assembly includes a spline shaft, a telescopic rod, a gear spline sleeve and a bearing seat. The spline shaft is coaxially arranged with the outer bracket and fixedly connected. The telescopic rod is fixedly connected to the telescopic cylinder. A gear spline sleeve is fitted on the spline shaft. A part of the outer wall of the gear spline sleeve is rotatably arranged in the bearing seat, and the gear of the gear spline sleeve is meshed with the motor gear.

[0016] The utility model has the following beneficial effects: the winding structure for acupuncture needle production of the utility model can fully automatically complete the entire process of conveying and winding the acupuncture needle without manual participation, and has a simple structure, low cost and high handle winding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the handle winding assembly of the utility model;

[0019] Figure 3 for Figure 2 Schematic diagram of structural decomposition;

[0020] Figure 4 for Figure 2 Schematic diagram of structural decomposition of the cross section along line AA;

[0021] Figure 5 This is a schematic diagram of the structure of the movable chuck of the utility model;

[0022] Figure 6 It is a schematic diagram of the connection relationship between the movable chuck and the conveying assembly of the utility model;

[0023] Figure 7 It is a schematic structural diagram of the power assembly of the utility model. DETAILED DESCRIPTION

[0024] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0025] like Figures 1 to 7 In the embodiment of the winding structure for acupuncture needle production of the utility model shown, the winding structure for acupuncture needle production includes a handle winding assembly 1, a conveying assembly 2 and a power assembly 3, the conveying assembly 2 fixes the needle body portion of the acupuncture needle 4, and the needle handle portion of the acupuncture needle 4 extends out of the conveying assembly 2; generally speaking, the conveying assembly 2 can adopt a conveyor belt with a needle groove 201, the needle groove 201 is used to adapt to the needle body portion of the acupuncture needle, the conveyor belt can be covered with a rubber pad or other similar coverings, the needle body of the acupuncture needle 4 is fixed by the gravity and friction resistance of the rubber pad, so that the acupuncture needle 4 will not produce circumferential rotation, radial displacement and axial sliding during the conveying and handle winding process; in addition, a fixing block 21 is set at the needle tip position of the acupuncture needle 4 on the conveying assembly 2, and the fixing block 21 can further prevent the axial sliding of the acupuncture needle 4.

[0026] The conveying component 2 conveys the acupuncture needle 4 to a specific position and then stops. The specific position refers to the position when the acupuncture needle 4 is coaxial with the handle winding component 1. At this position, the acupuncture needle 4 can be inserted into the inner cavity of the handle winding component 1. The power component 3 drives the handle winding component 1 to move along the axial direction of the acupuncture needle 4 close to the conveying component 2, so that the needle handle of the acupuncture needle 4 can be completely inserted into the inner cavity of the handle winding component, and the handle winding work can be started at this time; then the power component 3 drives the handle winding component 1 away from the acupuncture needle 4, and the power component 3 drives the handle winding component 1 to rotate around its own axis, so that the metal wire can be wound around the needle handle part of the acupuncture needle 4.

[0027] The handle assembly 1 includes an outer bracket 11, a wire channel 12 and an active chuck 13. The centers of the outer bracket 11 and the active chuck 13 are provided with through holes for avoiding the acupuncture needle 4. The outer bracket 11 and the active chuck 13 are coaxially arranged. The wire channel 12 is fixedly arranged on the side wall of the outer bracket 11. The active chuck 13 is arranged at the end of the outer bracket 11 close to one end of the conveying assembly 2. The active chuck 13 can rotate relative to the outer bracket 11 along the circumferential direction of the outer bracket 11 in the end of the outer bracket 11, and the active chuck 13 can slide relative to the outer bracket 11 along the axial direction of the outer bracket 11 in the end of the outer bracket 11.

[0028] The movable chuck 13 can slide along the axial direction of the outer bracket 11 relative to the outer bracket 11 and rotate around the central axis of the outer bracket 11. Specifically, the movable chuck 13 is arranged in the groove 101 at the end of the outer bracket 11. The diameter of the outer periphery of the movable chuck 13 is smaller than the inner diameter of the groove 101. A plurality of rollers 131 are arranged on the outer periphery of the movable chuck 13. The rollers 131 are embedded in the slide grooves arranged on the outer periphery of the movable chuck 13. The rollers 131 can slide along the axial direction of the movable chuck 13 in the slide grooves; the rollers 131 can rotate around their own axes in the slide grooves. The rollers 131 The side wall of the roller 131 conflicts with the side wall of the slide groove, and the side wall of the roller 131 also conflicts with the side wall of the groove 101; the outer end of the outer bracket 11 provided with the groove 101 is also fixed with an end cover 111 by bolts, and the end cover 111 confines the movable chuck 13 and the roller 131 in the groove 101; there is a gap between the two end surfaces of the roller 131 in the groove 101 and the groove 101 and the end cover 111 to prevent the roller 131 from getting stuck; when the outer peripheral part of the movable chuck 13 slides in the groove 101, the groove 101 and the end cover 111 limit the movable range of the movable chuck 13.

[0029] The movable chuck 13 is fixedly provided with an arc-shaped spline sleeve 132 on the end surface facing the conveying component 2. The splines of the spline sleeve 132 are arranged on the outer periphery of the spline sleeve 132. The inner diameter of the spline sleeve 132 is greater than or equal to the diameter of the needle handle of the acupuncture needle 4. The maximum outer diameter of the spline sleeve 132 is smaller than the diameter of the outer periphery of the movable chuck 13. The arcs of the inner and outer diameters of the arc-shaped spline sleeve 132 are both parts of a perfect circle, and the arc lengths of the inner and outer diameters of the arc-shaped spline sleeve 132 are greater than half of the circumference of the perfect circle in which they are located. The spline sleeve 132 can be embedded in the conveying component 2. The spline nut 22 on the component 2 is used to limit the circumferential rotation of the movable chuck 13; the spline nut 22 is also set to be an arc, and the arc of the spline nut 22 is also a part of a perfect circle, and the arc length of the arc of the spline nut 22 is also greater than half of the circumference of the perfect circle in which it is located; in this way, the spline sleeve 132 can always be engaged with the spline nut 22 when entering the range of the spline nut 22; when the spline sleeve 132 is completely embedded in the spline nut 22, the movable chuck 13 is in conflict with the bottom surface of the groove 101, and the handle winding operation can be started at this time.

[0030] When the spline sleeve 132 is embedded in the spline nut 22, there is a certain interlocking friction between the two, which is greater than the interlocking friction between the movable chuck 13 and the roller 131. Therefore, the spline sleeve 132 and the spline nut 22 will only be separated when the end cover 111 contacts the movable chuck 13 and continues to move away from the conveying component 2.

[0031] In the opening direction of the arc-shaped spline sleeve 132, a fan-shaped clamping hole 133 is provided on the movable chuck 13, and the clamping hole 133 is a through hole on the movable chuck 13; the fan-shaped clamping hole 133 includes long and short arcs and connecting lines of the long and short arcs, and the fan shape of the clamping hole 133 is symmetrically arranged with the center point connecting line of the long and short arcs of the fan shape as the axis, and the symmetrical arrangement can make the process of clamping the metal wire with the clamping hole 133 smoother; of course, it can be understood that the short arc can also be a straight line.

[0032] The surface where the long arc of the fan-shaped clamping hole 133 is located is coaxially arranged with the outer bracket 11, and the center of the long arc of the clamping hole 133 coincides with the axis of the spline sleeve 132. The diameter of the perfect circle where the long arc of the clamping hole 133 is located is greater than or equal to the diameter of the needle handle of the acupuncture needle 4. After the needle handle of the acupuncture needle 4 is inserted into the long arc, the metal wire used for winding the handle can be inserted into the fan-shaped clamping hole 133 and the range outside the acupuncture needle 4. The metal wire extends from the metal wire channel 12 set on the outer bracket 11. The metal wire can move freely in the part of the fan-shaped clamping hole 133 close to the acupuncture needle 4, and the metal wire is clamped and fixed by the clamping hole 133 at the position close to the fan-shaped short arc in the fan-shaped clamping hole 133.

[0033] The wire channel 12 is arc-shaped near the movable chuck 13 to prevent the wire from being stuck in the wire channel 12 due to excessive bending. The wire channel 12 is adjacent to the clamping hole 133 near the outlet of the movable chuck 13 .

[0034] The power assembly 3 includes a spline shaft 31, a telescopic rod 32, a gear spline sleeve 33, a bearing seat 34, a motor and a telescopic rod. One end of the spline shaft 31 is fixedly arranged at an end of the outer bracket 11 away from the conveying assembly 2, and the spline shaft 31 is coaxially arranged with the outer bracket 11; the other end of the spline shaft 31 is fixedly arranged with a telescopic rod 32, and the telescopic rod 32 is fixedly connected to the telescopic cylinder. The telescopic cylinder and the telescopic rod 32 control the outer bracket 11 to move along its axial direction. The lengths of the spline shaft 31 and the telescopic rod 32 are both greater than the length of the outer bracket 11; a gear spline sleeve 33 is fitted on the spline shaft 31, and a part of the outer wall of the gear spline sleeve 33 is rotatably arranged in the bearing seat 34, and the gear of the gear spline sleeve 33 is meshed with the motor gear to provide power for the rotation of the outer bracket 11.

[0035] The winding structure for producing acupuncture needles of the utility model is a working principle of winding metal wire around acupuncture needles as follows:

[0036] 1. The conveying assembly 2 conveys the acupuncture needle 4 to a position coaxial with the outer bracket 11, and the power assembly 3 controls the outer bracket 11 to insert the needle handle of the acupuncture needle 4 until the spline sleeve 132 on the movable chuck 13 is completely embedded in the spline female seat 22, and the metal wire used for winding the handle is fixed in the clamping hole 133 of the movable chuck 13;

[0037] 2. The power component 3 controls the outer bracket 11 to slowly move away from the conveying component 2, and the power component 3 controls the outer bracket 2 to start rotating. Since the spline sleeve 132 is completely embedded in the spline mother seat 22, the movable chuck 13 can only slide along its axial direction but cannot rotate along its circumferential direction. At this time, since the engaging friction between the spline sleeve 132 and the spline mother seat 22 is greater than the engaging friction between the movable chuck 13 and the roller 131, the movable chuck 13 is immovable relative to the conveying component 2, and the outer bracket 11 moves along its axial direction relative to the conveying component 2 and winds the metal wire around the needle handle of the acupuncture needle 4; and, at this time, the metal wire can be detached from the clamping hole 133 by winding itself when winding around the handle, and is wound and fixed on the needle handle of the acupuncture needle 4 by itself. This process can be achieved by the axial movement and circumferential rotation provided by the power component 3 for the outer bracket 11. For example, after the outer bracket 11 is wound around a part of the handle, it approaches the conveying component 2 again to complete the second winding around the handle to achieve the detachment and fixation of the metal wire;

[0038] 3. The outer bracket 11 moves away from the conveying assembly 2 until the movable chuck 13 contacts the end cover 111, and the end cover 111 drives the movable chuck 13 to make the spline sleeve 132 disengage from the spline nut 22, and then the outer bracket 11 continues to move away from the conveying assembly 2 until the handle is completed, at which time the outer bracket 11 no longer rotates;

[0039] 4. After the handle is wound, the outer bracket 11 no longer rotates, and the outer bracket 11 continues to move away from the conveying assembly 2 to a certain distance. At this time, because the metal wire is still connected to the needle handle of the acupuncture needle 4, and the metal wire channel is located on the outer wall of the outer bracket 11, the metal wire will be inclined. At this time, as long as the metal wire is no longer provided, the metal wire can be inserted into the card hole 133; at this time, the metal wire can be cut off from the outer end of the needle handle, and the conveying assembly 2 will send away the acupuncture needle 4 with the wound handle, and the next acupuncture needle 4 can be wound around the handle.

[0040] The winding structure for acupuncture needle production of the utility model can automatically complete the entire process of conveying and winding the acupuncture needles without manual participation, and has a simple structure, low cost and high handle winding efficiency.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A winding structure for producing acupuncture needles, characterized in that: The invention comprises a handle winding assembly (1), a conveying assembly (2) and a power assembly (3), wherein the conveying assembly (2) fixes the needle body of the acupuncture needle (4) and allows the needle handle of the acupuncture needle (4) to extend outside the conveying assembly (2), and the power assembly (3) can drive the handle winding assembly (1) to move along its axial direction and rotate around its central axis, and when the acupuncture needle (4) and the handle winding assembly (1) are coaxial, the acupuncture needle (4) can be inserted into the inner cavity of the handle winding assembly (1); the handle winding assembly (1) comprises an outer support (11) and a movable chuck (13), and the outer support (11) is provided with a movable chuck (13) at the end facing the conveying assembly (2); the movable chuck (13) can clamp a metal wire used for the handle winding and drive the metal wire to approach the conveying assembly (2), unlock the metal wire after the handle winding starts, and clamp the metal wire again after the handle winding is completed.

2. The winding structure for producing acupuncture needles according to claim 1, characterized in that: The movable chuck (13) can slide along the axial direction of the outer bracket (11) relative to the outer bracket (11) and rotate around the central axis of the outer bracket (11). The movable chuck (13) is rotatably and slidably arranged in a groove (101) at the end of the outer bracket (11) through a roller (131). The groove (101) and the end cover (111) of the outer bracket (11) jointly define the axial sliding range of the movable chuck (13) and the outer bracket (11).

3. The winding structure for producing acupuncture needles according to claim 2, characterized in that: The movable chuck (13) is fixedly provided with an arc-shaped spline sleeve (132) on the end surface facing the conveying assembly (2); the spline sleeve (132) can be embedded in a corresponding arc-shaped spline nut (22) provided on the conveying assembly (2); the fitting friction force between the spline sleeve (132) and the spline nut (22) is greater than the fitting friction force between the movable chuck (13) and the roller (131).

4. The winding structure for producing acupuncture needles according to claim 3, characterized in that: The arcs of the inner and outer diameters of the spline sleeve (132) are both parts of a perfect circle, and the arc lengths of the inner and outer diameters of the spline sleeve (132) are greater than half the circumference of the perfect circle in which they are located; the arc shape of the spline nut (22) is part of a perfect circle, and the arc length of the arc shape of the spline nut (22) is greater than half the circumference of the perfect circle in which they are located.

5. The winding structure for producing acupuncture needles according to claim 4, characterized in that: The inner diameter of the spline sleeve (132) is greater than or equal to the diameter of the needle handle of the acupuncture needle (4), and the spline sleeve (132) and the needle handle of the acupuncture needle (4) are coaxially arranged when wrapped around the handle.

6. The winding structure for producing acupuncture needles according to claim 5, characterized in that: In the opening direction of the spline sleeve (132), a fan-shaped clamping hole (133) is provided on the movable chuck (13), the center of the long arc of the clamping hole (133) coincides with the axis of the spline sleeve (132), the diameter of the perfect circle where the long arc of the clamping hole (133) is located is greater than or equal to the diameter of the needle handle of the acupuncture needle (4), and the short arc of the clamping hole (133) can be clamped with a metal wire.

7. The winding structure for producing acupuncture needles according to claim 6, characterized in that: The fan-shaped clamping hole (133) is symmetrically arranged with the line connecting the center points of the long and short arcs of the fan-shaped as the axis.

8. The winding structure for producing acupuncture needles according to claim 1, characterized in that: The winding handle assembly (1) further comprises a metal wire channel (12), wherein the metal wire channel (12) is arranged in an arc shape at a portion close to the movable chuck (13) to prevent the metal wire from being stuck in the metal wire channel (12) due to excessive bending.

9. The winding structure for producing acupuncture needles according to claim 1, characterized in that: The conveying assembly (2) is provided with a needle groove (201), a fixing block (21) and a covering, wherein the covering can fix the acupuncture needle (4) in the needle groove (201), and the fixing block (21) contacts the needle tip of the acupuncture needle (4).

10. The winding structure for producing acupuncture needles according to claim 1, characterized in that: The power assembly (3) comprises a spline shaft (31), a telescopic rod (32), a gear spline sleeve (33) and a bearing seat (34); the spline shaft (31) is coaxially arranged with the outer bracket (11) and fixedly connected; the telescopic rod (32) is fixedly connected with the telescopic cylinder; the spline shaft (31) is sleeved with a gear spline sleeve (33); a portion of the outer wall of the gear spline sleeve (33) is rotatably arranged in the bearing seat (34); and the gear of the gear spline sleeve (33) is meshed with the gear of the motor.

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