Barbed suture line rotary cutting device

Abstract

The utility model discloses a barbed suture line rotary cutting device which comprises a main shaft, a machine frame body, a servo motor, a cutter rest, a cutter air cylinder, an overturning shaft, an overturning support and an overturning air cylinder, the cutter rest and the overturning support are oppositely installed on the machine frame body, and an overturning gear, a limiting jackscrew and the like are arranged on the side, adjacent to the cutter rest, of the overturning support. According to the utility model, the precise matching of the reset spring and the locking device can be realized, so that the turnover cutter can be quickly and accurately reset to the initial state after each operation is completed, and the stability of the cutting and stabbing form can be obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of barbed suture peeling production equipment, in particular to a knife holder locking device for a barbed suture peeling machine. Background Art

[0002] Barbed sutures, also known as knot-free barbed wires, are characterized by the fact that no knots need to be tied during the entire suturing process, which greatly improves the safety and speed of incision closure. Especially in laparoscopic suturing operations, barbed wires can effectively reduce the number and frequency of use of operating forceps, significantly improving surgical efficiency. Barbed sutures are exquisitely designed, generally based on single-strand sutures, and use advanced cutting technology, so that the barbs can accurately cut into the sutures, forming barbs with a certain angle and distributed in a 360° spiral. When the suture passes through the tissue, each barb acts like a one-way valve, only moving forward and not backward, firmly grasping the tissue to ensure the stability of the suture.

[0003] However, when the blade of a conventional rotary cutting machine is turned over, the blade position is easily changed due to gravity, resulting in a change in the cutting angle, which affects the barb forming effect. Therefore, for the production of barb wire, special attention should be paid to the cutting process and equipment to ensure that the shape and effect of the barb are in the best state. Utility Model Content

[0004] Technical purpose: In view of the above-mentioned technical problems, the utility model innovatively proposes a barbed suture rotary cutting device, which is provided with a unique flipping and locking and resetting structure design, which can improve the accuracy and efficiency of barb cutting.

[0005] Technical solution: To achieve the above technical objectives, the utility model adopts the following technical solution:

[0006] A barbed suture rotary cutting device comprises a main shaft, a frame body, a servo motor, a cutter frame, a cutter cylinder, a flip shaft, a flip bracket and a flip cylinder, wherein the frame body is mounted on the main shaft, and the servo motor is used to drive the main shaft to rotate, thereby driving the frame body to rotate;

[0007] The frame body is provided with a slide rail for mounting a cutter holder and a fixed baffle plate located outside the slide rail, and the cutter cylinder is used to drive the cutter holder to move on the slide rail; a cutter is provided on the top of the cutter holder, and a locking device is provided on the side of the cutter holder, the locking device includes a pressing plate, a locking shaft passing through the pressing plate and the cutter holder, and a locking nut located at the end of the locking shaft, and short columns are provided on the pressing plate and the fixed baffle plate located on the same side of the cutter holder, and a reset spring is provided between the two short columns;

[0008] The frame body is also provided with a mounting plate, the bottom of which is mounted on the frame body, the flip bracket is mounted on the inner side of the upper end of the mounting plate and is opposite to the position of the cutter holder, a long shaft and a gear assembly are provided on the side of the flip bracket adjacent to the cutter holder, a flip gear meshing with the gear assembly is provided on the long shaft, and the long shaft is fixedly connected to one end of the flip shaft, and the flip cylinder is used to drive the gear assembly to rotate.

[0009] Preferably, a limiting top screw is provided on the side of the flip bracket opposite to the cutter holder.

[0010] Preferably, the bottom of the frame body is provided with a guide rail, the guide rail is located below the cutter holder, a top block is provided on the guide rail, a micrometer fixing frame and a micrometer are provided at the bottom of the cutter holder, and the top block is used to limit the range of translation of the micrometer fixing frame toward the side of the flip bracket with the cutter holder.

[0011] Beneficial effects: Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0012] The utility model proposes a barbed suture thread rotary cutting device, which is designed to enhance the stability of the barbed rotary cutting machine when the cutter cylinder pushes the knife holder to perform the cutting action and is linked with the flip cylinder. Through the precise cooperation of the reset spring and the locking device, it is ensured that the flip cutter can be quickly and accurately reset to the initial state after each operation is completed, which can significantly improve the stability of the cutting shape. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of a barbed suture rotary cutting device proposed in Example 1;

[0014] Among them, 1-frame body, 10-spindle, 11-slide rail, 12-fixed baffle, 13-mounting plate, 14-guide rail, 15-top block; 2-cutter holder, 21-cutter cylinder, 22-cutter, 23-micrometer fixing bracket, 24-micrometer; 3-flip bracket, 31-flip cylinder, 32-flip shaft, 33-long shaft, 34-flip gear; 4-locking device, 41-pressure plate, 42-locking nut; 5-reset spring; 6-limiting top screw. DETAILED DESCRIPTION

[0015] The embodiments of the present utility model are described in detail below in conjunction with the accompanying drawings.

[0016] Embodiment 1

[0017] like Figure 1As shown, this embodiment proposes a barbed suture peeling device, which is applied to the barbed suture peeling equipment, and the device includes a main shaft 10, a frame body 1, a servo motor, a cutter holder 2, a cutter cylinder 21, a flip shaft 32, a flip bracket 3 and a flip cylinder 31, wherein the frame body 1 is mounted on the main shaft 10, and the servo motor is not drawn in the figure, which is used to drive the main shaft 10 to rotate and drive the frame body 1 to rotate. The frame body 1 is provided with a slide rail 11 for mounting the cutter holder 2 and a fixed baffle 12 located outside the slide rail 11, and the cutter cylinder 21 is used to drive the cutter holder 2 to move on the slide rail 11.

[0018] A cutter 22 is provided on the top of the cutter holder 2, and a locking device 4 is provided on the side of the cutter holder 2. The locking device 4 includes a pressure plate 41, a locking shaft passing through the pressure plate 41 and the cutter holder 2, and a locking nut 42 located at the end of the locking shaft. Short columns are provided on the pressure plate 41 and the fixed baffle 12 located on the same side of the cutter holder 2, and a return spring 5 is provided between the two short columns.

[0019] A mounting plate 13 is also provided on the frame body 1, and the bottom of the mounting plate 13 is installed on the frame body 1. The flip bracket 3 is installed on the inner side of the upper end of the mounting plate 13 and is opposite to the position of the cutter holder 2. A long shaft 33 and a gear assembly are provided on the side of the flip bracket 3 adjacent to the cutter holder 2. A flip gear 34 meshing with the gear assembly is provided on the long shaft 33, and the long shaft 33 is fixedly connected to one end of the flip shaft 32. The flip cylinder 31 is used to drive the gear assembly to rotate.

[0020] A limiting top screw 6 is provided on the side of the flip bracket 3 opposite to the cutter holder 2, and the limiting top screw is used to maintain a safe distance between the flip bracket and the cutter holder when they move relative to each other.

[0021] A guide rail 14 is provided at the bottom of the frame body 1, and the guide rail 14 is located below the cutter holder 2. A top block 15 is provided on the guide rail 14. A micrometer fixing frame 23 and a micrometer 24 are provided at the bottom of the cutter holder 2. The top block 15 is used to limit the range of translation of the micrometer fixing frame 23 with the cutter holder 2 toward the side of the flip bracket 3.

[0022] When the device of the utility model is cutting the barbed suture, the suture is always routed through the precise cooperation of the wire feeding wheel and the wire pulling wheel, ensuring the tension and smoothness of the suture, and the suture passes through between the cutter frame and the flip bracket. The suture can be transmitted horizontally, perpendicular to the rotation direction of the frame body, and the suture itself keeps rotating at a constant speed. The transmission direction of the suture can also be transmitted vertically, perpendicular to the rotation direction of the frame body. At this time, a channel for the suture to pass through is set between the frame body and the flip shaft. The cutter cuts the barbs on the suture that is transmitted at a constant speed during the rotation of the frame body. The specific process is as follows:

[0023] First, the device uses the thrust of the cutter cylinder 21 to push the cutter holder 2 to accurately cut into the suture line, thereby achieving a preliminary cutting action;

[0024] When the cutter 22 cuts in, the flip cylinder 31 quickly flips and links to complete the continuous action of cutting, stabbing and pricking to form a barbed suture line, that is, the flip cylinder 31 transmits torque to the flip shaft through the flip gear 34, lifts the cutter 22 at a specific angle, forms a cutting, stabbing and pricking action, and ensures that the suture line can be barbed smoothly; at the same time, the main shaft 10 rotates under the precise control of the servo motor, providing stable power support for the entire cutting process.

[0025] In the utility model, the top block and the micrometer are used in combination to effectively adjust the depth, accurately control the stroke of the cutter cylinder, and ensure the accuracy of suture cutting. In addition, the utility model is specially designed with a reset spring and a locking device, which work together to ensure that the flip cutter can quickly return to the initial position after each operation, ready for the next cutting flip. This innovative design not only improves the stability and reliability of the device, but also significantly extends the service life of the device.

[0026] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the above embodiments do not limit the utility model in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the utility model.

Claims

1. A barbed suture rotary cutting device, characterized in that: The machine comprises a main shaft (10), a frame body (1), a servo motor, a cutter frame (2), a cutter cylinder (21), a flip shaft (32), a flip bracket (3) and a flip cylinder (31), wherein the frame body (1) is mounted on the main shaft (10), and the servo motor is used to drive the main shaft (10) to rotate, thereby driving the frame body (1) to rotate; The frame body (1) is provided with a slide rail (11) for mounting a cutter holder (2) and a fixed baffle (12) located outside the slide rail (11); a cutter cylinder (21) is used to drive the cutter holder (2) to move on the slide rail (11); a cutter (22) is provided on the top of the cutter holder (2); a locking device (4) is provided on the side of the cutter holder (2); the locking device (4) comprises a pressing plate (41), a locking shaft passing through the pressing plate (41) and the cutter holder (2), and a locking nut (42) located at the end of the locking shaft; short columns are provided on the pressing plate (41) and the fixed baffle (12) located on the same side of the cutter holder (2); a return spring (5) is provided between the two short columns; The frame body (1) is further provided with a mounting plate (13), the bottom of the mounting plate (13) being mounted on the frame body (1), the flip bracket (3) being mounted on the inner side of the upper end of the mounting plate (13) and opposite to the position of the cutter holder (2), the flip bracket (3) being provided with a long shaft (33) and a gear assembly on a side adjacent to the cutter holder (2), the long shaft (33) being provided with a flip gear (34) meshing with the gear assembly, and the long shaft (33) being fixedly connected to one end of the flip shaft (32), and the flip cylinder (31) being used to drive the gear assembly to rotate.

2. The barbed suture rotary cutting device according to claim 1, characterized in that: A limiting top screw (6) is provided on the side of the flip bracket (3) opposite to the cutter holder (2).

3. The barbed suture rotary cutting device according to claim 1, characterized in that: The frame body (1) is provided with a guide rail (14), the guide rail (14) is located below the cutter holder (2), a top block (15) is provided on the guide rail (14), a micrometer fixing frame (23) and a micrometer (24) are provided at the bottom of the cutter holder (2), and the top block (15) is used to limit the range of translation of the micrometer fixing frame (23) along with the cutter holder (2) toward one side of the flip bracket (3).

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