A temperature balancing device that can absorb monofilament materials

Abstract

This invention provides a temperature balancing device for absorbable monofilament materials, belonging to the field of medical device technology. It includes a frame base, a control cabinet, a comb-shaped guide assembly, and two sets of large-diameter temperature balancing rollers arranged in parallel and linked by a synchronous belt. Each roller is equipped with a temperature control device, which includes infrared temperature sensors located at the inlet and outlet ends of the rollers, as well as a thermally conductive silicone layer covering the surface of the rollers. The temperature control cabinet integrates an electronic control device and a touchscreen interface. The electronic control device receives signals from the infrared temperature sensors and dynamically adjusts the drive motor of the rollers. The touchscreen interface, located on the side of the temperature control cabinet, is used to set the residence time and temperature threshold of the monofilament. This invention can achieve uniform temperature balance between the inner and outer layers of the monofilament before drawing, thereby improving product consistency and yield.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a temperature balancing device for absorbable monofilament materials. Background Technology

[0002] Absorbable monofilament materials (such as medical sutures) are widely used in the medical field due to their biocompatibility and biodegradability. However, these materials have low glass transition temperatures and are extremely sensitive to temperature changes during the drawing process. In existing production processes, monofilaments are directly fed into the drawing rollers after being cooled in a cold water bath. Due to insufficient cooling time, there is a significant temperature difference between the inside and the surface of the monofilament (inconsistent temperatures between the inner and outer layers), leading to the following problems: 1. Inhomogeneous wire diameter and physical properties: monofilaments with a diameter ≥0.3mm exhibit diameter fluctuations and differences in physical properties after drawing; 2. Surface defects: microcracks are visible on the surface of the monofilament under a microscope, affecting the material's mechanical properties and yield.

[0003] Process investigation revealed that the root cause was that the monofilament temperature did not fully balance after cooling before entering the drawing stage. Existing equipment lacks a dedicated temperature control device, and the residence time of the monofilament from cooling to drawing is too short to eliminate the temperature difference between the inner and outer layers. Although the industry has attempted to optimize cooling parameters (such as water temperature and flow rate), none of these efforts have resolved the problem of uneven drawing caused by the temperature gradient. Summary of the Invention

[0004] Purpose of the invention: The purpose of this invention is to address the shortcomings of existing technologies by providing a temperature balancing device that can absorb monofilament materials, enabling uniform temperature balance between the inner and outer layers of the monofilament before drawing, thereby improving product consistency and yield.

[0005] Technical Solution: The present invention discloses a temperature balancing device for absorbable monofilament materials, comprising a frame base, a control cabinet mounted on top of the frame base, a comb-shaped guide assembly mounted on the side of the control cabinet, and two sets of large-diameter temperature balancing rollers mounted above the control cabinet. These two sets of large-diameter temperature balancing rollers are arranged in parallel and linked by a synchronous belt. The diameter of the parallel rollers is much larger than that of conventional guide rollers, and their rotational speed is synchronized with that of the drafting rollers. A temperature control device is installed on the balancing rollers, including infrared temperature sensors respectively located at the inlet and outlet ends of the balancing rollers, and a thermally conductive silicone layer covering the surface of the balancing rollers. The control cabinet integrates an electronic control device and a touchscreen operating interface. The electronic control device receives signals from the infrared temperature sensors and dynamically adjusts the drive motor of the balancing rollers. The touchscreen operating interface is located on the side of the control cabinet and is used to set the residence time of the monofilament and the temperature threshold.

[0006] After the comb-shaped guide assembly guides the absorbable monofilament material onto the large-diameter temperature balancing roller for winding, the large-diameter temperature balancing roller begins to rotate. The winding path of the absorbable monofilament material is either parallel winding or S-shaped winding. The monofilament travels between the two sets of temperature balancing rollers in a multi-turn winding manner through the comb-shaped guide, and the temperature of the inner and outer layers of the monofilament is balanced by extending the residence time.

[0007] Furthermore, the comb-shaped guide wire assembly includes a bracket fixed to the control cabinet, on which a long strip base plate is vertically fixed, and a set of V-shaped guide wire grooves are evenly distributed on the long strip base plate.

[0008] Furthermore, an angle adjustment mechanism is provided at the hinge of the support and the elongated substrate, and the horizontal tilt angle of the V-shaped guide wire groove is adjusted by the angle adjustment mechanism.

[0009] Furthermore, the angle adjustment mechanism includes a rotating shaft mounted on the bracket and an arc-shaped slide rail fixedly connected to the back of the elongated substrate that carries the V-shaped guide wire groove; the central angle of the arc-shaped slide rail is 60°, and the surface of the arc-shaped slide rail is provided with scale lines with equidistant positioning grooves, the groove spacing corresponding to 1° increments; the end of the arc-shaped slide rail is pressed against an electromagnetic locking knob by a spline sleeve, and the groove and the elastic ball at the end of the knob form a ratchet-type positioning, so that the substrate tilt angle adjustment drives the V-shaped guide wire groove to deflect synchronously.

[0010] Furthermore, the bottom of the frame base is equipped with anti-vibration pads to reduce the impact of vibration on operation.

[0011] Furthermore, the diameter of the large-diameter temperature balancing roller is 500mm.

[0012] Beneficial effects: Compared with the prior art, the advantages of the present invention are as follows:

[0013] (1) The present invention can extend the residence time of absorbable monofilament materials through the design of a large-diameter balance roller, and the thermally conductive silicone layer on the large-diameter balance roller can enhance the heat dissipation effect and achieve a uniform temperature in the deep layer of monofilament.

[0014] (2) The present invention adjusts the inclination angle of the V-groove of the comb guide by adjusting the angle adjustment mechanism, which can accurately control the winding density, dynamically regulate the single filament path, and eliminate the problem of temperature balance dead angle. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention;

[0016] Figure 2 This is a top view of the present invention;

[0017] Figure 3 This is a side view of the present invention. Detailed Implementation

[0018] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the embodiments described.

[0019] like Figure 1 The temperature balancing device for absorbable monofilament materials shown includes a frame base 1, a control cabinet 2 mounted on top of the frame base 1, a comb-shaped guide assembly 3 mounted on the side of the control cabinet 2, and two sets of large-diameter temperature balancing rollers 4, each with a diameter of 500mm, mounted above the control cabinet 2. The two sets of large-diameter temperature balancing rollers 4 are arranged in parallel and linked by a synchronous belt. Each balancing roller 4 is equipped with a temperature control device, which includes infrared temperature sensors located at the inlet and outlet ends of the balancing roller 4, and a thermally conductive silicone layer covering the surface of the balancing roller 4. The control cabinet 2 integrates an electronic control device and a touchscreen operating interface 201. The electronic control device receives signals from the infrared temperature sensors and dynamically adjusts the drive motor of the balancing roller 4. The touchscreen operating interface, located on the side of the control cabinet 2, is used to set the residence time and temperature threshold of the monofilament.

[0020] The comb-shaped wire guide assembly 3 includes a bracket 301 fixed to the control cabinet 2. A long strip base plate 302 is vertically fixed on the bracket 301, and a set of V-shaped wire guide grooves 303 are evenly distributed on the long strip base plate 302. An angle adjustment mechanism is provided at the hinge of the bracket 301 and the long strip base plate 302 to adjust the horizontal tilt angle of the V-shaped wire guide grooves 303. The angle adjustment mechanism includes a rotating shaft set on the bracket 301 and an arc-shaped slide rail fixedly connected to the back of the long strip base plate 302 that carries the V-shaped wire guide grooves 303. The central angle of the arc-shaped slide rail is 60°, and the surface of the arc-shaped slide rail is provided with scale lines with equidistant positioning grooves, the groove spacing corresponding to 1° increments. The end of the arc-shaped slide rail is press-fitted with an electromagnetic locking knob through a spline sleeve. The grooves and the elastic ball at the end of the knob form a ratchet-type positioning, so that the tilt angle adjustment of the base plate 302 drives the V-shaped wire guide grooves 303 to deflect synchronously. The bottom of the frame base 1 is provided with anti-vibration pads 101.

[0021] After the comb-shaped guide assembly 3 guides the absorbable monofilament material 6 onto the large-diameter temperature balancing roller 4 for winding, the large-diameter temperature balancing roller 4 begins to rotate. The winding path of the absorbable monofilament material is either parallel winding or S-shaped winding. When the winding path is parallel winding, the monofilaments form equidistant parallel lines on the roller surface, with a constant line spacing of 15mm. When the winding path is S-shaped winding, the monofilaments advance spirally on the roller surface, and the projections of adjacent loops on the roller surface form a continuous S-shaped stagger. The residence time of the monofilaments on the roller surface can be adjusted by changing the diameter of the large-diameter balancing roller and its travel path.

[0022] The workflow of this embodiment is as follows:

[0023] 1. Set the target temperature and residence time, adjust the guide wire tilt angle, and start the servo driver to drive the balance roller to rotate;

[0024] 2. Guide the monofilaments on the roller surface and advance them along the roller face to enhance heat exchange through contact with the roller surface.

[0025] As described above, although the invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the invention itself. Various changes in form and detail may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A temperature equalizing device for absorbable monofilament material, characterized by: The system includes a frame base (1), a control cabinet (2) mounted on top of the frame base (1), a comb-shaped guide assembly (3) mounted on the side of the control cabinet (2), and two sets of large-diameter temperature balancing rollers (4) mounted on top of the control cabinet (2). The two sets of large-diameter temperature balancing rollers (4) are arranged in parallel and linked by a synchronous belt. A temperature control device is provided on the balance roller (4). The temperature control device includes infrared temperature sensors respectively set at the inlet and outlet ends of the balance roller (4) and a thermally conductive silicone layer. The thermally conductive silicone layer covers the surface of the balance roller (4). The control cabinet (2) integrates an electronic control device and a touch screen operation interface. The electronic control device receives the infrared temperature sensor signal and dynamically adjusts the drive motor of the balance roller (4). The touch screen operation interface is located on the side of the control cabinet (2) and is used to set the dwell time and temperature threshold of the monofilament. After the comb-shaped guide assembly (3) guides the absorbable monofilament material onto the large-diameter temperature balancing roller (4) for winding, the large-diameter temperature balancing roller (4) begins to rotate, and the winding path of the absorbable monofilament material is either parallel winding or S-shaped winding.

2. A temperature equalizing device for absorbable monofilament material according to claim 1, characterized in that: The comb-shaped guide wire assembly (3) includes a bracket (301) fixed to the control cabinet (2), a long strip base plate (302) is vertically fixed on the bracket (301), and a set of V-shaped guide wire grooves (303) are evenly distributed on the long strip base plate (302).

3. A temperature equalizing device for absorbable monofilament material according to claim 2, characterized in that: An angle adjustment mechanism is provided at the hinge of the bracket (301) and the elongated substrate (302) to adjust the horizontal tilt angle of the V-shaped guide wire groove (303).

4. A temperature equalizing device for absorbable monofilament material according to claim 3, characterized in that: The angle adjustment mechanism includes a rotating shaft mounted on a bracket (301) and an arc-shaped slide rail fixedly connected to the back of a long strip substrate (302) that carries the V-shaped guide wire groove (303). The central angle of the arc-shaped slide rail is 60°. The surface of the arc-shaped slide rail is provided with scale lines with equidistant positioning grooves, and the groove spacing corresponds to 1° increments. The end of the arc-shaped slide rail is pressed into an electromagnetic locking knob by a spline sleeve. The groove and the elastic ball at the end of the knob form a ratchet-type positioning, so that the tilt angle adjustment of the substrate (302) drives the V-shaped guide wire groove (303) to deflect synchronously.

5. The temperature equalizing device for absorbable monofilament material of claim 1, wherein: The bottom of the frame base (1) is provided with anti-vibration pads (101).

6. The temperature balancing device for absorbable monofilament material according to claim 1, characterized in that: The diameter of the large-diameter temperature balancing roller (4) is 500 mm.

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