A medical suture heat curing automatic cutting machine

Abstract

The present invention discloses a medical suture heat curing automatic cutting machine, which belongs to the technical field of textile machinery. The medical suture heat curing automatic cutting machine includes a frame, a tension wire release device, a heating curing device, a traction length fixing device and a cutting device. The tension wire release device is installed on one side of the frame, and the tension wire release device includes a wire drum; the heating curing device includes a heating block; the traction length fixing device includes a linear module, a movable finger cylinder and a fixed finger cylinder, and the linear module is slidably connected to the movable finger cylinder; the cutting device includes a blade. The present invention can accurately cut out sutures of the same length, and the cutting process does not require manual participation, will not cause suture contamination, saves a lot of labor costs, can realize continuous automatic cutting, and is highly efficient; the suture fracture after cutting will harden, will not be loose and unable to thread, and there is no need to cut off the loose sutures in the later stage, threading is convenient, and waste of sutures is avoided.

Description

Technical Field

[0001] The invention relates to a medical suture thread heat curing automatic cutting machine, belonging to the technical field of textile machinery. Background Art

[0002] Medical sutures are a type of linear material that can be used on patients to sew up torn tissues, sew up bleeding tissues, or for ligation. Depending on the part of the body where they are used, the length and thickness of the sutures vary.

[0003] In order to adapt to market demand and meet the doctor's requirements, most manufacturers of different sutures use manual fixed-length cutting technology, that is, manually cutting medical sutures into the same length to meet usage requirements, but manual cutting is inefficient and has high labor costs. Since it is impossible to accurately calculate the cutting length manually, it is easy to cut out too long or too short medical sutures, resulting in waste of sutures. And manual cutting is prone to suture contamination, increasing the cost of subsequent processing such as decontamination and disinfection. In addition, the cut of the manually cut suture is prone to looseness, which is not conducive to later threading, resulting in waste of sutures and inconvenience in use. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a medical suture thread heat-curing automatic cutting machine, which can accurately cut out suture threads of the same length to meet usage requirements. No human intervention is required during the cutting process, and no suture thread contamination will be caused, thereby saving a large amount of labor costs. Continuous automatic cutting can be achieved with high efficiency. Moreover, the suture thread fracture will harden after being cut, and there will be no problem of looseness and inability to thread the thread. There is no need to cut off the loose suture thread at a later stage, and threading is convenient, thereby avoiding waste of suture thread.

[0005] The medical suture thread heat-curing automatic cutting machine comprises: a frame; a tension wire-releasing device, which is installed on one side of the frame and includes a wire drum; a heating and curing device, which is installed on the frame and includes a heating block; a traction and length-fixing device, which is installed on the frame and includes a linear module, a movable finger cylinder and a fixed finger cylinder, and the linear module is slidably connected to the movable finger cylinder; and a cutting device, which is installed on the frame and includes a blade; wherein the fixed finger cylinder is located between the blade and the heating block, one end of the suture thread is wound on the wire drum, and the other end is pulled to the heating block by the movable finger cylinder, and the heating block is used to heat and cure the suture thread, and the suture thread after heating and curing continues to be pulled to the blade by the movable finger cylinder, and the blade cuts the suture thread from the heating and curing section of the suture thread.

[0006] In one embodiment of the present invention, the heating and curing device also includes a curing base plate, a curing frame horizontal plate, a curing frame vertical plate, a pneumatic slide, a cylinder connecting plate, a curing finger cylinder and a heating block fixing frame; the curing frame horizontal plate is fixedly connected to the curing base plate, the curing frame vertical plate is connected to the curing frame horizontal plate, the pneumatic slide is installed on the fixing frame vertical plate, the curing finger cylinder is connected to the pneumatic slide through the cylinder connecting plate, and heating block fixing frames are respectively installed on the two air claws of the curing finger cylinder, and each of the heating block fixing frames is fixedly connected to a heating block.

[0007] In one embodiment of the present invention, a plurality of through holes are evenly provided on the heating block, heating rods are arranged in the through holes, there are two heating blocks, notches are arranged at opposite ends of the two heating blocks, the suture is located in the notch and does not contact the heating blocks; the curing finger cylinder drives the heating block fixing frame and the heating block to rise and fall on the pneumatic slide, when the curing finger cylinder descends to the set position, the fixed finger cylinder drives the heating block fixing frame to close so that the two heating blocks are in conflict with each other, the notch between the two heating blocks is clamped on the suture and the suture is heated and cured; after the heating and curing is completed, the fixed finger cylinder drives the heating block fixing frame to open so that the two heating blocks are separated, the fixed finger cylinder drives the heating block fixing frame and the heating block to rise, so that the heating block is away from the suture; the length of the suture heating and curing section is equal to the length of the heating block.

[0008] In one embodiment of the present invention, the traction and length fixing device also includes a motor, a reducer, a movable finger cylinder bracket and a fixed finger cylinder bracket; the motor is connected to the reducer, the reducer is connected to the power input interface of the linear module, the linear module is fixedly connected to the frame, the movable finger cylinder is fixedly connected to the movable finger cylinder bracket, the movable finger cylinder bracket is fixedly connected to the slider of the linear module, the motor is used to drive the movable finger cylinder, the movable finger cylinder bracket and the slider to slide on the linear module; the fixed finger cylinder is fixedly connected to the curing base plate through the fixed finger cylinder bracket, and the curing base plate is fixed to the frame.

[0009] In one embodiment of the present invention, the cutting device also includes a cutting cylinder bottom plate, a cutting finger cylinder and a blade holder; the cutting finger cylinder is fixedly connected to the cutting cylinder bottom plate, the cutting cylinder bottom plate is fixedly connected to the frame and is located on one side of the fixed finger cylinder, the cutting finger cylinder is provided with two sliders, each slider is fixedly connected to a blade holder, the blade holder is fixedly connected to a blade, the two blades are arranged opposite to each other, and the blades have inwardly concave cutting edges, the cutting finger cylinder drives the two blade holders and the blades to move relative to each other through the two sliders, and the relatively moving blades contact and cut the suture.

[0010] In one embodiment of the present invention, the tension wire-releasing device also includes a right wire-releasing bracket, a left wire-releasing bracket, a top shaft, a top shaft locking sleeve, a ball rod, a right taper sleeve of a wire reel, a left taper sleeve of a wire reel, a transmission shaft, a flange sleeve, a magnetic powder clutch and a wire reel dial plate; the right wire-releasing bracket is fixedly connected with a top shaft locking sleeve, the top shaft is inserted into the top shaft locking sleeve, the ball rod is fixedly connected to the top shaft, and the right taper sleeve of the wire reel is installed on one end of the top shaft through a bearing; the flange sleeve is fixedly connected to the left wire-releasing bracket, the transmission shaft and the flange sleeve are supported by a bearing, one end of the transmission shaft is connected to the magnetic powder clutch, and the other end is connected to the left taper sleeve of the wire reel; there is a wire reel between the right taper sleeve of the wire reel and the left taper sleeve of the wire reel; the wire reel dial plate is fixed on the left taper sleeve of the wire reel and is stuck in the groove on the end face of the wire reel.

[0011] In one embodiment of the present invention, a front wire-passing wheel bracket, a middle wire-passing wheel bracket and a rear wire-passing wheel bracket are installed on the frame from left to right in sequence, and wire-passing wheels are provided on the front wire-passing wheel bracket, the middle wire-passing wheel bracket and the rear wire-passing wheel bracket. The suture thread passes through the three wire-passing wheels in sequence, and the three wire-passing wheels are staggered in the vertical direction. The wire-passing wheel in the middle is higher than the wire-passing wheels at both ends. The top ends of the wire-passing wheels at both ends are in contact with the suture thread, and the bottom end of the wire-passing wheel in the middle is in contact with the suture thread.

[0012] In one embodiment of the present invention, a suture placement box is also provided on the frame, and the suture placement box is located on one side of the cutting finger cylinder. The sutures cut by the cutting finger cylinder fall on the suture placement box and are collected.

[0013] In one embodiment of the present invention, the movable finger cylinder and the fixed finger cylinder are 180-degree opening and closing claw cylinders, the motor is a servo motor with a built-in encoder, a cover and a control panel are also provided on the frame, the control panel is electrically connected to the motor, and a temperature sensor is provided on the heating rod.

[0014] In one embodiment of the present invention, a rotating cylinder is provided between the cutting cylinder bottom plate and the cutting finger cylinder, and the rotating cylinder is located directly below the center of the cutting finger cylinder, and the rotating cylinder is used to drive the cutting finger cylinder and the blade to rotate.

[0015] Beneficial Effects

[0016] (1) The present invention adopts a linear module to pull the suture line to move, and can control the moving length of the slider as needed to accurately control the length of the suture line; when the moving finger cylinder clamps the suture line, the fixed finger cylinder loosens the suture line; when the moving finger cylinder pulls the center of the heating and curing section of the suture line to the cutting device, the fixed finger cylinder and the moving finger cylinder clamp the suture line at the same time, and then cut the suture line; after the cutting is completed, the moving finger cylinder is moved to the left side of the fixed finger cylinder and clamps the suture line to achieve continuous automated production; the present invention adopts two finger cylinders, one moving and one static, which are equivalent to a person's two hands pulling a rope, ensuring the horizontality of the suture line and keeping the suture line stretched at all times, so as to accurately achieve the fixed length cutting of the suture line, and can also achieve the cutting of the suture line that is much longer than the stroke length of the linear module through multiple traction.

[0017] (2) The heating and curing device of the present invention can heat and cure the suture at the cutting position of the suture, so that the suture is hardened at the cut end without becoming loose and unable to be threaded. There is no need to cut off the loose suture at a later time, which makes threading convenient and avoids the waste of suture.

[0018] (3) The present invention can accurately cut out sutures of the same length to meet usage requirements. No human intervention is required during the cutting process, and no suture contamination will be caused, thereby saving a large amount of labor costs. Continuous automatic cutting can be achieved with high work efficiency.

[0019] (4) The present invention preheats the heating block by means of a heating rod to make the temperature of the entire heating block uniform. The preheated heating block heats and solidifies the suture in the notch. Since the suture is not in contact with the heating block, fast heating will not cause the temperature of the suture to be too high and thus melt the suture. A temperature sensor is provided on the heating rod, and the temperature of the heating rod is monitored by the temperature sensor to control the temperature of the heating block, thereby preventing the suture from being heated to too high a temperature and thus melting the suture, or preventing the suture from being heated to too low a temperature and thus failing to achieve a solidification effect. Furthermore, the heating block is made of copper, and the copper material can be quickly heated by the heating rod, thereby further improving the heating and solidification effect of the suture.

[0020] (5) The blade of the present invention has an inwardly concave cutting edge, and the cutting finger cylinder drives the two blade holders and the blades to move relative to each other through two sliders. The relatively moving blades contact each other and cut the middle suture. The suture can be cut quickly and accurately by the relatively moving blades with inwardly concave cutting edges, and the suture can be prevented from being displaced in a lateral direction, thereby ensuring that the suture is cut at a fixed length.

[0021] (6) The present invention can ensure the horizontality of the suture line by providing three thread-passing wheels that are staggered in the vertical direction, so that the length of the cut suture line is consistent and the length error is prevented.

[0022] (7) The motor of the present invention is a servo motor with a built-in encoder. A control panel is also provided on the frame. The control panel is electrically connected to the motor. The operation of the motor is controlled by the control panel. The displacement of the moving finger cylinder can be accurately controlled by the servo motor and the encoder, thereby accurately controlling the distance the suture thread moves forward, and then accurately controlling the cutting position of the suture thread, thereby achieving the cutting of the suture thread at a fixed length. The cylinders used are all electrically connected to the control panel, and position sensors are installed on the cylinders. The control panel can control the precise and coordinated work of each cylinder through the position sensor.

[0023] (8) The present invention cuts the suture thread from the center of the heated and solidified section of the suture thread, so that the two ends of the cut suture thread will not be loose, making it easy to thread the two ends of the cut suture thread. At the same time, it also ensures that the suture thread is cut at a fixed length, and suture threads of the same length are accurately cut out to meet usage requirements.

[0024] (9) Before the cutting finger cylinder drives the blade to cut the suture, the present invention drives the cutting finger cylinder and the blade to rotate 45 degrees by the rotating cylinder. After the blade rotates 45 degrees, the suture is cut, so that the suture presents a 45-degree incision, which is beneficial to the subsequent threading of the suture and increases the convenience of the subsequent threading. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional diagram of the medical suture thread heat curing automatic cutting machine of the present invention.

[0026] Figure 2 It is a left side view of the medical suture thread heat curing automatic cutting machine of the present invention.

[0027] Figure 3 It is a cross-sectional view of the tension wire-releasing device of the present invention.

[0028] Figure 4 The present invention is a three-dimensional diagram of the medical suture thread heat curing automatic cutting machine with the cover shell and part of the frame removed.

[0029] Figure 5 It is a stereoscopic diagram of the heating and curing device, the traction and length fixing device and the cutting device of the present invention.

[0030] Figure 6 This is a stereoscopic diagram from another perspective of the heating and curing device, the traction and length fixing device and the cutting device of the present invention.

[0031] Figure 7 It is a three-dimensional diagram of the heating and curing device of the present invention.

[0032] Figure 8 It is a stereoscopic view of the traction and length fixing device of the present invention.

[0033] Fig. 9 It is a three-dimensional diagram of the cutting device of the present invention.

[0034] Among them: 1. Right bracket for wire release; 2. Left bracket for wire release; 3. Top spindle; 4. Locking sleeve for top spindle; 5. Ball rod; 6. Right cone sleeve for wire reel; 7. Left cone sleeve for wire reel; 8. Transmission shaft; 9. Flange sleeve; 10. Magnetic powder clutch; 11. Wire reel; 12. Wire reel plate; 13. Curing bottom plate; 14. Horizontal plate of curing frame; 15. Vertical plate of curing frame; 16. Pneumatic slide; 17. Cylinder connecting plate; 18. Curing finger cylinder; 19. Heating block fixing frame; 20. Heating block; 21. Sliding block; 22. Motor; 23. Reducer; 24, linear module; 25, movable finger cylinder bracket; 26, movable finger cylinder; 27, fixed finger cylinder bracket; 28, fixed finger cylinder; 29, cutting cylinder bottom plate; 30, cutting finger cylinder; 31, blade holder; 32, blade; 33, through hole; 34, wire wheel; 35, front wire wheel bracket; 36, middle wire wheel bracket; 37, rear wire wheel bracket; 38, suture thread placement box; 39, suture thread; 40, frame; 41, cover; 42, control panel; 43, notch. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0038] Example 1

[0039] A medical suture thread heat curing automatic cutting machine, such as Figure 1-4 As shown, it includes a frame 40, a tension wire-releasing device, a heating and curing device, a traction and length-fixing device and a cutting device. The tension wire-releasing device is installed on one side of the frame 40, and the tension wire-releasing device includes a wire drum 11; the heating and curing device is installed on the frame 40, and the heating and curing device includes a heating block 20; the traction and length-fixing device is installed on the frame 40, and the traction and length-fixing device includes a linear module 24, a movable finger cylinder 26 and a fixed finger cylinder 28, and the linear module 24 is slidably connected to the movable finger cylinder 26. The cutting device is installed on the frame 40, and the cutting device includes a blade 32; wherein the fixed finger cylinder 28 is located between the blade 32 and the heating block 20, one end of the suture 39 is wound on the wire drum 11, and the other end is pulled to the heating block 20 by the movable finger cylinder 26, and the heating block 20 is used to heat and cure the suture 39, and the suture 39 after heating and curing continues to be pulled to the blade 32 by the movable finger cylinder 26, and the blade 32 cuts the suture 39 from the heating and curing section of the suture 39.

[0040] like Figure 1-3As shown, the tension wire-releasing device comprises a wire-releasing right bracket 1, a wire-releasing left bracket 2, a top shaft 3, a top shaft locking sleeve 4, a ball rod 5, a right cone sleeve 6 of a wire reel, a left cone sleeve 7 of a wire reel, a transmission shaft 8, a flange sleeve 9, a magnetic powder clutch 10, a wire reel 11 and a wire reel dial plate 12; the wire-releasing right bracket 1 is fixedly connected with a top shaft locking sleeve 4, the top shaft 3 is inserted into the top shaft locking sleeve 4, the ball rod 5 is fixedly connected to the top shaft 3, and the right cone sleeve 6 of the wire reel is fixedly connected with the top shaft 3 through The bearing is installed at one end of the top shaft 3; the flange sleeve 9 is fixedly connected to the left wire-releasing bracket 2, the transmission shaft 8 and the flange sleeve 9 are supported by the bearing, one end of the transmission shaft 8 is connected to the magnetic powder clutch 10, and the other end is connected to the left cone sleeve 7 of the wire drum; there is a wire drum 11 between the right cone sleeve 6 and the left cone sleeve 7 of the wire drum; the wire drum dial plate 12 is fixed on the left cone sleeve 7 of the wire drum and is clamped in the groove on the end face of the wire drum 11, and the suture line 39 is wound on the wire drum 11.

[0041] like Figure 5-7 As shown, the heating and curing device includes a curing base plate 13, a curing frame transverse plate 14, a curing frame vertical plate 15, a pneumatic slide 16, a cylinder connecting plate 17, a curing finger cylinder 18, a heating block fixing frame 19 and a heating block 20; the curing frame transverse plate 14 is fixedly connected to the curing base plate 13, the curing frame vertical plate 15 is connected to the curing frame transverse plate 14, the pneumatic slide 16 is installed on the fixing frame vertical plate 15, the curing finger cylinder 18 is connected to the pneumatic slide 16 through the cylinder connecting plate 17, and the two air claws of the curing finger cylinder 18 are respectively installed with heating block fixing frames 19, and each of the heating block fixing frames 19 is fixedly connected to a heating block 20.

[0042] Furthermore, a plurality of through holes 33 are evenly provided on the heating block 20, a heating rod is arranged in the through hole 33, there are two heating blocks 20, and a notch 43 is arranged at the opposite end of the two heating blocks 20, and the suture line 39 is located in the notch 43 and does not contact the heating block 20; the curing finger cylinder 18 drives the heating block fixing frame 19 and the heating block 20 to rise and fall on the pneumatic slide 16, and when the curing finger cylinder 18 descends to the set position, the curing finger cylinder 18 drives the heating block fixing frame 19 to close so that the two heating blocks 20 are in conflict with each other, and the notch 43 between the two heating blocks 20 is clamped on the suture line 39. A number of heating rods preheat the heating block 20 first to make the temperature of the entire heating block 20 uniform. The preheated heating block 20 heats and cures the suture 39 in the notch 43. Since the suture 39 is not in contact with the heating block 20, the heating block 20 will not make the temperature of the suture 39 too high and cause the suture 39 to melt. After heating for a certain period of time, the curing finger cylinder 18 drives the heating block fixing frame 19 to open so that the two heating blocks 20 are separated. At the same time, the curing finger cylinder 18 drives the heating block fixing frame 19 and the heating block 20 to rise, so that the heating block 20 is away from the suture 39. At this point, the heating and curing of the suture 39 is completed. The length of the heated and cured section of the suture 39 is equal to the length of the heating block 20.

[0043] Furthermore, a temperature sensor is provided on the heating rod, and the temperature of the heating rod is monitored by the temperature sensor to control the temperature of the heating block 20, so as to prevent the suture 39 from being heated at too high a temperature and causing the suture 39 to melt, or to prevent the suture 39 from being heated at too low a temperature and causing the suture 39 to fail to achieve a curing effect. Furthermore, the heating block 20 is made of copper, and the copper material can be quickly heated by the heating rod, further improving the heating and curing effect of the suture 39.

[0044] like Figure 4-6 As shown in FIG8 , the traction and length fixing device includes a motor 22, a reducer 23, a linear module 24, a movable finger cylinder bracket 25, a movable finger cylinder 26, a fixed finger cylinder bracket 27 and a fixed finger cylinder 28; the motor 22 is connected to the reducer 23, the reducer 23 is connected to the power input interface of the linear module 24, the linear module 24 is fixedly connected to the frame 40, the movable finger cylinder 26 is fixedly connected to the movable finger cylinder bracket 25, the movable finger cylinder bracket 25 is fixedly connected to the slider 21 of the linear module 24, the motor 22 is used to drive the movable finger cylinder 26, the movable finger cylinder bracket 25 and the slider 21 to slide on the linear module 24; the fixed finger cylinder 28 is fixedly connected to the curing base plate 13 through the fixed finger cylinder bracket 27, and the curing base plate 13 is fixed on the frame 40.

[0045] like Figure 4-6 As shown in Figure 9, the cutting device includes a cutting cylinder bottom plate 29, a cutting finger cylinder 30, a blade holder 31 and a blade 32; the cutting finger cylinder 30 is fixedly connected to the cutting cylinder bottom plate 29, the cutting cylinder bottom plate 29 is fixedly connected to the frame 40 and is located on one side of the fixed finger cylinder 28, the cutting finger cylinder 30 is provided with two sliders, each slider is fixedly connected to a blade holder 31, the blade holder 31 is fixedly connected to a blade 32, the two blades 32 are arranged oppositely, and the blade 32 has an inwardly concave blade edge, the cutting finger cylinder 30 drives the two blade holders 31 and the blade 32 to move relative to each other through the two sliders, and the relatively moving blades 32 contact and cut the middle suture 39. The suture 39 can be cut quickly and accurately by the blade 32 with a concave blade edge that moves relative to each other and prevents the suture 39 from being displaced in a lateral direction.

[0046] Furthermore, a front wire-passing wheel bracket 35, a middle wire-passing wheel bracket 36 and a rear wire-passing wheel bracket 37 are sequentially installed on the frame 40 from left to right, and wire-passing wheels 34 are provided on the front wire-passing wheel bracket 35, the middle wire-passing wheel bracket 36 and the rear wire-passing wheel bracket 37. The suture line 39 passes through the three wire-passing wheels 34 in sequence, and the three wire-passing wheels 34 are staggered in the vertical direction. The middle wire-passing wheel 34 is higher than the wire-passing wheels 34 at both ends. The top ends of the wire-passing wheels 34 at both ends are in contact with the suture line 39, and the bottom end of the middle wire-passing wheel 34 is in contact with the suture line 39. By setting three wire-passing wheels 34 staggered in the vertical direction, the horizontality of the suture line 39 can be ensured, so that the length of the cut suture line 39 is consistent, and the length error is prevented.

[0047] Furthermore, a suture placing box 38 is also provided on the frame 40 , and the suture placing box 38 is located at one side of the cutting finger cylinder 30 , and the suture 39 cut by the cutting finger cylinder 30 falls on the suture placing box 38 and is collected.

[0048] Furthermore, the movable finger cylinder 26 and the fixed finger cylinder 28 are 180-degree opening and closing air claw cylinders.

[0049] Furthermore, the motor 22 is a servo motor with a built-in encoder. The frame 40 is also provided with a cover 41 and a control panel 42. The control panel 42 is electrically connected to the motor 22. The operation of the motor 22 is controlled by the control panel 42. The displacement of the moving finger cylinder 26 can be accurately controlled by the servo motor and the encoder, thereby accurately controlling the distance of advancement of the suture thread 39, and then accurately controlling the cutting position of the suture thread 39 to achieve the cutting of the suture thread 39 at a certain length.

[0050] Furthermore, the above-mentioned cylinders are all electrically connected to the control panel 42, and position sensors are installed on the cylinders. The control panel 42 can control the precise and coordinated operation of each cylinder through the position sensors.

[0051] The working principle of the present invention is as follows: first, the moving finger cylinder 26 is moved to the left side of the fixed finger cylinder 28, and the suture 39 is drawn out from the wire drum 11 in the tension release device, and is clamped and fixed by the fixed finger cylinder 28 after passing through three wire wheels 34 in sequence. The air claw of the moving finger cylinder 26 closes and clamps the suture 39, and the air claw of the fixed finger cylinder 28 is released. When the moving finger cylinder 26 pulls the suture 39 to the set position when the linear module 34 moves, the curing finger cylinder 18 descends and closes the two heating block fixing frames 19, and the heating rod heats the heating block 20, and the heating block 20 heats and cures the suture 39 located in the notch 43 of the heating block 20. After heating for the set time, the curing finger cylinder 18 opens the two heating block fixing frames 19 and rises to the initial position. At this time, the movable finger cylinder 26 clamps the suture 39, and continues to pull the suture 39 forward, so that the center of the heated and cured section of the suture 39 moves to the cutting device, and the air claw of the fixed finger cylinder 28 is closed, so that the fixed finger cylinder 28 and the movable finger cylinder 26 clamp the suture 39 at the same time. The cutting finger cylinder 30 drives the two blade holders 31 and the blade 32 to move relative to each other, and the relatively moving blades 32 contact and cut the suture 39 from the center of the heated and cured section of the suture 39, and releases the air claw of the movable finger cylinder 26, so that the cut suture 39 falls onto the suture placement box 38 and is collected. The movable finger cylinder 26 is moved to the left side of the fixed finger cylinder 28 and clamps the suture 39, and the above steps are repeated to achieve continuous automated production.

[0052] Among them, since the suture thread 39 is cut from the center of the heated and solidified section of the suture thread 39, the two ends of the cut suture thread 39 will not be loose, making it easy to thread the two ends of the cut suture thread 39. At the same time, it also ensures that the suture thread 39 is cut at a fixed length, and the suture threads 39 of the same length are accurately cut out to meet the usage requirements.

[0053] Example 2

[0054] The difference between this embodiment and Example 1 is that in this embodiment, a rotating cylinder is arranged between the cutting cylinder bottom plate 29 and the cutting finger cylinder 30, and the rotating cylinder is located directly below the center of the cutting finger cylinder 30, and the rotating cylinder is used to drive the cutting finger cylinder 30 and the blade 32 to rotate. Before the cutting finger cylinder 30 drives the blade 32 to cut the suture 39, the rotating cylinder drives the cutting finger cylinder 30 and the blade 32 to rotate 45°, and the blade 32 cuts the suture 39 after rotating 45°, so that the suture 39 can present a 45° incision, which is beneficial to the subsequent threading of the suture 39 and increases the convenience of subsequent threading.

[0055] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A medical suture thread heat curing automatic cutting machine, characterized in that: include: Rack (40); A tension wire-releasing device, the tension wire-releasing device being installed on one side of the frame (40), the tension wire-releasing device comprising a wire drum (11); A heating and curing device, the heating and curing device is mounted on the frame (40), and the heating and curing device comprises a heating block (20); A traction and length-fixing device, the traction and length-fixing device being mounted on the frame (40), the traction and length-fixing device comprising a linear module (24), a movable finger cylinder (26) and a fixed finger cylinder (28), the linear module (24) being slidably connected to the movable finger cylinder (26); as well as A cutting device, the cutting device is mounted on the frame (40), and the cutting device comprises a blade (32); The fixed finger cylinder (28) is located between the blade (32) and the heating block (20), one end of the suture (39) is wound on the wire drum (11), and the other end is pulled to the heating block (20) by the movable finger cylinder (26), and the heating block (20) is used to heat and cure the suture (39), and the suture (39) after heating and curing is further pulled to the blade (32) by the movable finger cylinder (26), and the blade (32) cuts the suture (39) from the heated and cured section of the suture (39); The heating and curing device also includes a curing base plate (13), a curing frame transverse plate (14), a curing frame vertical plate (15), a pneumatic slide (16), a cylinder connecting plate (17), a curing finger cylinder (18) and a heating block fixing frame (19); the curing frame transverse plate (14) is fixedly connected to the curing base plate (13), the curing frame vertical plate (15) is connected to the curing frame transverse plate (14), the pneumatic slide (16) is installed on the fixing frame vertical plate (15), the curing finger cylinder (18) is connected to the pneumatic slide (16) through the cylinder connecting plate (17), and the two air claws of the curing finger cylinder (18) are respectively installed with a heating block fixing frame (19), and each of the heating block fixing frames (19) is fixedly connected to a heating block (20).

2. The medical suture thread heat curing automatic cutting machine according to claim 1, characterized in that: The heating block (20) is evenly provided with a plurality of through holes (33), a heating rod is arranged in each of the through holes (33), the number of the heating blocks (20) is two, a notch (43) is arranged at the opposite end of the two heating blocks (20), the suture line (39) is located in the notch (43) and does not contact the heating block (20); the curing finger cylinder (18) drives the heating block fixing frame (19) and the heating block (20) to move up and down on the pneumatic slide (16), and when the curing finger cylinder (18) descends to a set position, the curing finger cylinder (18) drives the heating block fixing frame (19) and the heating block (20) to move up and down on the pneumatic slide (16). The block fixing frame (19) is closed so that the two heating blocks (20) are in contact with each other, and the gap (43) between the two heating blocks (20) is clamped on the suture (39) to heat and cure the suture (39); after the heating and curing is completed, the curing finger cylinder (18) drives the heating block fixing frame (19) to open so that the two heating blocks (20) are separated, and the curing finger cylinder (18) drives the heating block fixing frame (19) and the heating block (20) to rise, so that the heating block (20) is away from the suture (39); the length of the heating and curing section of the suture (39) is equal to the length of the heating block (20).

3. The medical suture thread heat curing automatic cutting machine according to claim 2, characterized in that: The traction and length-fixing device also includes a motor (22), a reducer (23), a movable finger cylinder bracket (25) and a fixed finger cylinder bracket (27); the motor (22) is connected to the reducer (23), the reducer (23) is connected to the power input interface of the linear module (24), the linear module (24) is fixedly connected to the frame (40), the movable finger cylinder (26) is fixedly connected to the movable finger cylinder bracket (25), the movable finger cylinder bracket (25) is fixedly connected to the slider (21) of the linear module (24), and the motor (22) is used to drive the movable finger cylinder (26), the movable finger cylinder bracket (25) and the slider (21) to slide on the linear module (24); the fixed finger cylinder (28) is fixedly connected to the curing base plate (13) through the fixed finger cylinder bracket (27), and the curing base plate (13) is fixed to the frame (40).

4. The medical suture thread heat curing automatic cutting machine according to claim 3, characterized in that: The cutting device further comprises a cutting cylinder bottom plate (29), a cutting finger cylinder (30) and a blade holder (31); the cutting finger cylinder (30) is fixedly connected to the cutting cylinder bottom plate (29), the cutting cylinder bottom plate (29) is fixedly connected to the frame (40) and is located on one side of the fixed finger cylinder (28); the cutting finger cylinder (30) is provided with two sliders, each slider is fixedly connected to a blade holder (31), the blade holder (31) is fixedly connected to a blade (32), the two blades (32) are arranged opposite to each other, and the blades (32) have inwardly concave cutting edges; the cutting finger cylinder (30) drives the two blade holders (31) and the blades (32) to move relative to each other through the two sliders, and the relatively moving blades (32) contact each other and cut the suture (39).

5. The medical suture thread heat curing automatic cutting machine according to claim 1, characterized in that: The tension wire-releasing device further comprises a wire-releasing right bracket (1), a wire-releasing left bracket (2), a top shaft (3), a top shaft locking sleeve (4), a ball rod (5), a right conical sleeve (6) of a wire reel, a left conical sleeve (7) of a wire reel, a transmission shaft (8), a flange sleeve (9), a magnetic powder clutch (10) and a wire reel dial plate (12); the wire-releasing right bracket (1) is fixedly connected to a top shaft locking sleeve (4), the top shaft (3) is inserted into the top shaft locking sleeve (4), the ball rod (5) is fixedly connected to the top shaft (3), and the wire reel is fixedly connected to the top shaft (3). The right cone sleeve (6) of the reel is installed on one end of the top shaft (3) through a bearing; the flange sleeve (9) is fixedly connected to the left wire-releasing bracket (2); the transmission shaft (8) and the flange sleeve (9) are supported by a bearing; one end of the transmission shaft (8) is connected to the magnetic powder clutch (10), and the other end is connected to the left cone sleeve (7) of the reel; a wire reel (11) is arranged between the right cone sleeve (6) of the reel and the left cone sleeve (7) of the reel; and the wire reel shifting plate (12) is fixed on the left cone sleeve (7) of the reel and is clamped in a groove on the end surface of the reel (11).

6. The medical suture thread heat curing automatic cutting machine according to claim 1, characterized in that: A front thread wheel bracket (35), a middle thread wheel bracket (36) and a rear thread wheel bracket (37) are sequentially mounted on the frame (40) from left to right. Thread wheels (34) are arranged on the front thread wheel bracket (35), the middle thread wheel bracket (36) and the rear thread wheel bracket (37). The suture (39) passes through the three thread wheels (34) in sequence. The three thread wheels (34) are staggered in the vertical direction. The thread wheel (34) in the middle is higher than the thread wheels (34) at the two ends. The top ends of the thread wheels (34) at the two ends are in contact with the suture (39), and the bottom end of the thread wheel (34) in the middle is in contact with the suture (39).

7. The medical suture thread heat curing automatic cutting machine according to claim 4, characterized in that: The frame (40) is also provided with a suture placement box (38), which is located on one side of the cutting finger cylinder (30). The suture (39) cut by the cutting finger cylinder (30) falls on the suture placement box (38) and is collected.

8. The medical suture thread heat curing automatic cutting machine according to claim 4, characterized in that: The movable finger cylinder (26) and the fixed finger cylinder (28) are 180-degree opening and closing claw cylinders, the motor (22) is a servo motor with a built-in encoder, the frame (40) is also provided with a cover (41) and a control panel (42), the control panel (42) is electrically connected to the motor (22), and the heating rod is provided with a temperature sensor.

9. The medical suture thread heat curing automatic cutting machine according to claim 4, characterized in that: A rotating cylinder is arranged between the cutting cylinder bottom plate (29) and the cutting finger cylinder (30), and the rotating cylinder is located directly below the center of the cutting finger cylinder (30). The rotating cylinder is used to drive the cutting finger cylinder (30) and the blade (32) to rotate.

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