Absorbable suture line cooling device

Abstract

The utility model discloses an absorbable suture line cooling device which comprises a sealing heat preservation cover, a traction assembly, a plurality of vortex tubes, an air source and an environment temperature detector, the traction assembly is arranged in the sealing heat preservation cover and comprises a plurality of traction rollers which are arranged in an up-and-down parallel staggered mode, and the vortex tubes are arranged outside the sealing heat preservation cover and correspond to the traction rollers respectively. And air outlets of the vortex tubes are formed in the top wall and the bottom wall of the sealing heat preservation cover and correspond to the roller surfaces of the traction rollers respectively. According to the vortex tube cooling device designed by the utility model, the air outlets correspond to all the roller surfaces, so that the temperature of an absorbable suture line can be quickly reduced to be below the glass transition temperature, the cooling quality of the suture line is improved, and the subsequent processing is uniform and stable.

Description

Technical Field

[0001] The utility model relates to the field of absorbable suture production equipment, in particular to an absorbable suture cooling device. Background Art

[0002] The cooling of the primary filaments of monofilament sutures is mainly done by air cooling and water cooling, so that the filaments are quickly shaped after being extruded from the die to ensure a smooth appearance and high roundness. However, the glass transition temperature of most absorbable materials is low, below 0°C, and conventional cooling methods cannot cool the filaments below the glass transition temperature, and the molecular activity is high. Therefore, the filaments are unstable during the drawing process, resulting in uneven diameter of the finished product and rough appearance.

[0003] The existing air cooling system is costly. Air is drawn into the wind window through a high-power cooling fan, and the airflow is homogenized through a filter to evenly blow the cooling thread. The water cooling system is limited by the refrigerant, and the purified water cannot reach below 0°C. Moreover, after the water comes into contact with the air, the temperature of the suture line will rise with the ambient temperature, which is difficult to control. Utility Model Content

[0004] Technical purpose: In view of the above problems, the utility model provides an absorbable suture cooling device, which is designed with a set of vortex tube cooling devices, and the air outlets correspond to each roller surface, which can quickly reduce the temperature of the wire to below the glass transition temperature, improve the cooling quality of the wire, and ensure that its subsequent processing is uniform and stable.

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

[0006] An absorbable suture cooling device, characterized in that it comprises: a sealed heat preservation cover, a traction assembly, a plurality of vortex tubes, an air source and an ambient temperature detector, wherein the traction assembly is arranged in the sealed heat preservation cover, and comprises a plurality of traction rollers arranged in parallel and staggered manner up and down, a set of opposite side walls of the sealed heat preservation cover are respectively provided with a wire inlet and a wire outlet, and the ambient temperature detector is used to detect the temperature in the sealed protection cover;

[0007] A vortex tube is arranged on the outside of the sealed heat-insulating cover corresponding to each traction roller, and the air inlet of each vortex tube is connected to an air source, which is used to provide compressed air. The air outlet of the vortex tube is arranged on the top wall and bottom wall of the sealed heat-insulating cover, and corresponds to the roller surface of a traction roller respectively.

[0008] Preferably, the sealed protective cover is a sealed structure formed by a transparent panel and a heat-insulating board. The heat-insulating board is provided with an interlayer, and heat-insulating cotton is arranged inside the interlayer. The transparent panel is made of an acrylic sheet with a thickness of 10 mm.

[0009] Preferably, each traction roller is provided with a limiting sleeve and a clamp assembly, the clamp assembly is used to detachably mount the limiting sleeve on the traction roller, and the limiting sleeve is provided with a plurality of limiting grooves.

[0010] Preferably, the vortex tube is of PT 1 / 4 type, and the pressure of the gas source is 4 to 9 bar.

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

[0012] Aiming at the characteristic that the glass transition temperature of absorbable materials is lower than 0°C, and in the context that existing air cooling and water cooling cannot meet the process requirements, the utility model designs a vortex tube cooling device, which can cool the suture thread to below the glass transition temperature. After the suture thread leaves the device, it can be sent to the subsequent drawing, shaping and other processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of an absorbable suture cooling device proposed by the utility model;

[0014] Figure 2 yes Figure 1 Schematic diagram of the axial structure of the middle traction roller. 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 1 As shown, an absorbable suture cooling device includes: a sealed heat-insulating cover 3, a traction assembly, a plurality of vortex tubes 2 and an air source. The traction assembly is arranged in the sealed heat-insulating cover 3. The traction assembly includes five traction rollers 1 arranged in parallel and staggered up and down, and each traction roller 1 introduces a vortex tube 2. The air inlet of each vortex tube 2 is connected to the air source, and the air source provides compressed air. The air outlet of the vortex tube is arranged on the top wall and the bottom wall of the sealed heat-insulating cover 3, respectively corresponding to the roller surface of a traction roller 1. The vortex tube 2 uses a PT 1 / 4 model, and the air source pressure is 4 to 9 bar. The air source is not shown in the figure.

[0018] In the utility model, the sealed protective cover 3 includes a transparent panel and an insulation board, which together form a sealed structure. A thread inlet 31 and a thread outlet 32 ​​are left on the front and rear side walls of the sealed insulation cover 3. The insulation board is provided with an interlayer filled with insulation cotton. The panel uses a 10mm thick acrylic sheet, which is convenient for production observation and operation, and takes into account the insulation effect. The device is provided with an ambient temperature detector 4 for detecting the internal temperature of the sealed protective cover. The vortex tube controls the temperature of the compressed air input into the cover, and through the real-time temperature display of the ambient temperature detector, the real-time temperature in the cover is controlled between 0°C and -25°C.

[0019] like Figure 2 As shown, each traction roller 1 is provided with a limiting sleeve 5 and a clamp assembly. The clamp assembly is used to detachably install the limiting sleeve 5 on the traction roller 1. A plurality of limiting grooves 51 are provided on the limiting sleeve 5. During installation, any limiting groove 51 is aligned with the corresponding air outlet position of the vortex tube 2 to constrain the position of the suture line passing through the traction roller 1, so as to give full play to the cooling effect of each vortex tube 2.

[0020] The operating process of the absorbable suture cooling device of the utility model is as follows:

[0021] Half an hour before production, cover the transparent panel of the sealed heat preservation cover, turn on the air source, and blow the compressed air to each traction roller through the vortex tube. The temperature inside the cover can be adjusted between 0℃ and -25℃.

[0022] When the internal temperature of the sealed heat preservation cover reaches the temperature required by the process, the panel is opened, the wire is passed through each traction roller in turn, and then the panel is quickly covered;

[0023] After the internal ambient temperature of the sealed insulation cover reaches the temperature required by the process, production begins.

[0024] 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. An absorbable suture cooling device, characterized in that: include: A sealed heat-insulating cover, a traction assembly, a plurality of vortex tubes, an air source and an ambient temperature detector, wherein the traction assembly is arranged in the sealed heat-insulating cover, and comprises a plurality of traction rollers arranged in parallel and staggered manner up and down, a set of opposite side walls of the sealed heat-insulating cover are respectively provided with a wire inlet and a wire outlet, and the ambient temperature detector is used to detect the temperature in the sealed protection cover; A vortex tube is arranged on the outside of the sealed heat-insulating cover corresponding to each traction roller, and the air inlet of each vortex tube is connected to an air source, which is used to provide compressed air. The air outlet of the vortex tube is arranged on the top wall and bottom wall of the sealed heat-insulating cover, and corresponds to the roller surface of a traction roller respectively.

2. The absorbable suture cooling device according to claim 1, characterized in that: The sealing protection cover is a sealing structure formed by a transparent panel and a heat-insulating board. The heat-insulating board is provided with an interlayer, and heat-insulating cotton is arranged inside the interlayer. The transparent panel is made of an acrylic board with a thickness of 10 mm.

3. The absorbable suture cooling device according to claim 1, characterized in that: Each traction roller is provided with a limiting sleeve and a clamp assembly. The clamp assembly is used to detachably mount the limiting sleeve on the traction roller. The limiting sleeve is provided with a plurality of limiting grooves.

4. The absorbable suture cooling device according to claim 1, characterized in that: The vortex tube is of PT1 / 4 type, and the pressure of the gas source is 4 to 9 bar.

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