Cutting tool, rubber cutting equipment and oxygenator manufacturing method

Abstract

The present application proposes a method for manufacturing a cutting tool, a rubber cutting device, and an oxygenator. The cutting tool includes a rotating shaft and a fixing part. The rotating shaft is used to pass the oxygenator through. The fixing part is installed on the rotating shaft. The fixing part is used to fix the device to be cut. The fixing part includes a first support part and a second support part. The first support part and the second support part are used to extend into the center hole of the device to be cut. The first support part is used to abut the residual material of the device to be cut, and the second support part is used to abut the body of the device to be cut. The slitting knife gradually feeds in the radial direction of the device to be cut to cut off the residual material of the device to be cut, so that the force on the device to be cut is more uniform, and at the same time, the radial component of the cutting force of the slitting knife can be reduced; the rigidity of the device to be cut is further improved by supporting it through the first support part and the second support part. Therefore, the cutting tool can reduce the deformation of the device to be cut when cutting rubber, and improve the product quality of the device to be cut.

Description

Technical Field

[0001] The present application relates to the field of membrane oxygenators, and in particular to a cutting tool, a rubber cutting device, and an oxygenator manufacturing method. Background Art

[0002] The oxygenator is a core component of extracorporeal membrane oxygenation (ECMO). Blood exchanges oxygen for carbon dioxide through the oxygenating membrane filaments within the oxygenator. In some current oxygenator manufacturing processes, the oxygenating membrane filaments, provided in strip form, are first wound around a membrane sleeve to form a membrane roll. The roll is then sealed with glue at both ends. Finally, the glue is cut at both ends of the roll to expose the through-holes on the end faces of the oxygenating membrane filaments, facilitating gas flow.

[0003] Cutting quality is a key factor affecting oxygenator product quality. In related technologies, end-capping and cutting of oxygenators typically involves securing the oxygenator to a fixture and using a linear motion of the cutter to remove excess material from the ends. For roll-based oxygenators, this cutting process can easily lead to deformation or damage at the ends, compromising product quality. Summary of the Invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a cutting tool, a rubber cutting device, and a method for manufacturing an oxygenator. The cutting tool can reduce deformation of the device to be cut during rubber cutting and improve the product quality of the device to be cut.

[0005] The cutting tool provided in the present application includes a rotating shaft and a fixing part, wherein the rotating shaft is used to pass the device to be cut, the fixing part is installed on the rotating shaft, and the fixing part is used to fix the device to be cut. The fixing part includes a first supporting part and a second supporting part, the first supporting part and the second supporting part are used to extend into the center hole of the device to be cut, the first supporting part is used to abut the residual material of the device to be cut, and the second supporting part is used to abut the body of the device to be cut.

[0006] The cutting tool provided by the present application has at least the following technical effects: on the one hand, the device to be cut is mounted on a rotating shaft, which drives the device to be cut to rotate, and the slitting knife is gradually fed in the radial direction of the device to be cut to cut off the remaining material of the device to be cut. This cutting method makes the device to be cut more evenly stressed, and at the same time can reduce the radial component of the cutting force of the slitting knife, thereby reducing the deformation of the device to be cut when cutting rubber; on the other hand, the first support part supports the remaining material, and the second support part supports the main body, thereby further improving the rigidity of the device to be cut and further reducing the deformation of the device to be cut when cutting rubber. Therefore, the cutting tool can reduce the deformation of the device to be cut when cutting rubber and improve the product quality of the device to be cut.

[0007] According to some embodiments of the present application, there are two fixing members, each used to fix the two ends of the device to be cut.

[0008] According to some embodiments of the present application, the fixing member includes a first shaft ring, and the first supporting portion and the second supporting portion are located on the first shaft ring.

[0009] According to some embodiments of the present application, the fixing member further includes a second shaft ring, which is connected to the first shaft ring and is used to stabilize the first shaft ring.

[0010] According to some embodiments of the present application, the device to be cut is an oxygenator.

[0011] According to some embodiments of the present application, the fixing member is used to form a glue filling cavity when the device to be cut is glued, the fixing member is adhesively connected to the device to be cut, and the fixing member also forms a glue overflow cavity, which is connected to the glue filling cavity.

[0012] According to some embodiments of the present application, the fixing member forms a connecting channel, which is connected to the glue overflow chamber at one end close to the center of the device to be cut, and is connected to the glue pouring chamber at one end away from the center of the device to be cut. The connecting position between the connecting channel and the glue overflow chamber is axially flush with the designed liquid level of the glue pouring chamber.

[0013] The rubber cutting equipment provided in the present application includes a mounting module, a cutting module and a cutting tool provided in the present application. The cutting tool is installed on the mounting module, and the cutting module includes a slitting knife.

[0014] According to some embodiments of the present application, the mounting module includes a chuck and a support member, the chuck is used to clamp one end of the rotating shaft, and the support member is used to support the other end of the rotating shaft.

[0015] According to some embodiments of the present application, the support member includes a first bearing seat, and a plurality of the first bearing seats are arranged in sequence in the axial direction of the rotating shaft.

[0016] According to some embodiments of the present application, the mounting module includes a first slide, the support member is mounted on the first slide, and the first slide can drive the support member to move closer to or away from the rotating shaft.

[0017] According to some embodiments of the present application, the cutting module includes a cutting knife frame, the slitting knife includes a knife disc and a knife shaft, the knife disc is installed on the knife shaft, the cutting knife frame includes a second bearing seat, and the knife shaft is installed on the second bearing seat.

[0018] According to some embodiments of the present application, the cutting frame includes a second slide, which is capable of moving to feed the slitting knife toward the side of the device to be cut, and the cutting frame includes a third slide, which is capable of moving to adjust the position of the slitting knife in the axial direction of the rotating shaft.

[0019] According to some embodiments of the present application, the cutting knife holder includes a first mounting seat and a second mounting seat, the first mounting seat can rotate in a first direction, and the second mounting seat can rotate in a second direction to adjust the angle of the slitting knife, and the first direction and the second direction are respectively perpendicular to the axial direction of the rotating shaft.

[0020] According to the oxygenator manufacturing method provided in this application, the oxygenator manufacturing method uses the rubber cutting equipment provided in this application, and the oxygenator manufacturing method includes the following steps:

[0021] The oxygenator is mounted on the cutting tool;

[0022] The slitting knife moves to the set cutting position;

[0023] The rotating shaft drives the oxygenator to rotate;

[0024] The slitting knife is close to the oxygenator and cuts off the remaining material at the end of the oxygenator.

[0025] According to some embodiments of the present application, first collars are installed at both ends of the oxygenator before glue pouring, so that the first collars are bonded and connected to the oxygenator through glue pouring.

[0026] According to some embodiments of the present application, a position image of the slitting knife is captured, and the slitting knife is calibrated based on the position image.

[0027] According to some embodiments of the present application, the excess material is removed step by step according to a set number of slices and a set slice thickness.

[0028] According to some embodiments of the present application, the rubber cutting feed speed of the slitting knife is less than or equal to 0.3 mm / s, and the rotation speed of the rotating shaft is 15-20 r / min.

[0029] The rubber cutting equipment provided in this application includes the cutting tool of this application, and the oxygenator manufacturing method provided in this application uses the cutting tool of this application. Therefore, the rubber cutting equipment and the oxygenator manufacturing method have the beneficial effects of the aforementioned cutting tool, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0031] Figure 1 This is a three-dimensional schematic diagram of a cutting tool installed with an oxygenator according to an embodiment of the present application;

[0032] Figure 2 yes Figure 1 Explosion diagram after hiding the axis;

[0033] Figure 3 is a three-dimensional schematic diagram of a first shaft collar of a cutting tool according to an embodiment of the present application;

[0034] Figure 4 This is a partial three-dimensional schematic diagram of a rubber cutting device according to an embodiment of the present application;

[0035] Figure 5 is a three-dimensional schematic diagram of a cutting module of a rubber cutting device according to an embodiment of the present application;

[0036] Figure 6 is a three-dimensional schematic diagram of a rubber cutting device according to an embodiment of the present application;

[0037] Figure 7 It is a flow chart of the method for manufacturing an oxygenator according to an embodiment of the present application.

[0038] Reference numerals:

[0039] The rotating shaft 1100, the fixing member 1200, the first shaft ring 1210, the first supporting portion 1211, the second supporting portion 1212, the overflow cavity 1213, the connecting channel 1214, the reinforcing rib 1215, the second shaft ring 1220,

[0040] Chuck 2110, first driver 2120, first bearing seat 2211, first slide 2221, first guide rail 2222, locking member 2223,

[0041] Slitting knife 3100, knife disc 3110, knife shaft 3120, cutter frame 3200, second bearing seat 3210, second slide 3220, second driver 3230, third driver 3240, third slide 3250, first mounting seat 3260, second mounting seat 3270, adjusting member 3280, shield 3290,

[0042] Image collector 4100, display 4200, control box 4300,

[0043] Frame 5100, wall panel 5200, door 5300,

[0044] Oxygenator 9000, main body 9100, and residual material 9200. DETAILED DESCRIPTION

[0045] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0046] In the description of this application, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application.

[0047] In the description of this application, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The terms "first" and "second" are used solely to distinguish technical features and are not to be construed as indicating or implying relative importance, or as implicitly specifying the number or order of the technical features indicated.

[0048] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0049] In the description of this application, the device to be cut may be a semi-finished oxygenator 9000. It is understandable that the device to be cut includes a main body 9100 and a residue 9200. The residue 9200 refers to the portion to be cut in the device to be cut, and the main body 9100 refers to the portion to be retained in the device to be cut. In the manufacturing process of the oxygenator 9000, it is necessary to seal the ends of the oxygenated membrane filaments with glue. The glue sealing will cause the ends of the oxygenated membrane filaments to be covered with glue, so a certain amount of the oxygenated membrane filaments needs to be reserved in advance. After the glue sealing, the ends of the oxygenated membrane filaments are cut off to expose the through holes of the oxygenated membrane filaments again. In the related art, the oxygenator 9000 is generally fixed on a fixture, and the residue 9200 is cut off by the linear motion of the slitting knife.

[0050] Reference Figure 1 and Figure 2 For the membrane roll-based oxygenator 9000, the oxygenating membrane filament is wound in strips around the outside of a membrane sleeve to form a membrane roll. Therefore, after the sealant is poured and sealed, the oxygenator 9000 has a hollow cylindrical shape. The device to be cut (body 9100) refers to the membrane sleeve and the portion of the membrane roll supported by the sleeve. The device to be cut (residue 9200) refers to the unsupported portion of the membrane roll extending beyond the ends of the membrane sleeve. Residue 9200 is a hollow ring, rather than the solid shape commonly seen in related art.

[0051] If the cutting method used in the related art is used, the remaining material 9200 lacks support, making it more susceptible to deformation due to stress during the cutting process. Furthermore, because the force exerted by the slitting blade on the remaining material 9200 is always in one direction, the oxygenator 9000 deforms unevenly in the radial direction, with the deformation tending to flatten the oxygenator 9000. Furthermore, because the force exerted by the slitting blade on the remaining material 9200 during cutting is in the direction of the slitting blade's feed, the oxygenator 9000 is subjected to greater radial force, making it more susceptible to deformation.

[0052] The above problems ultimately led to a decline in the quality of the finished product of the Oxygenator 9000.

[0053] Reference Figure 1 According to the cutting tool provided in the present application, it includes a rotating shaft 1100 and a fixing member 1200. The rotating shaft 1100 is used to pass the device to be cut. The fixing member 1200 is installed on the rotating shaft 1100. The fixing member 1200 is used to fix the device to be cut. The fixing member 1200 includes a first support portion 1211. The first support portion 1211 is used to extend into the center hole of the device to be cut and abut against the residual material 9200 of the device to be cut.

[0054] The fixing member 1200 further includes a second supporting portion 1212, which is used to abut against the body 9100 of the device to be cut. In other words, the second supporting portion 1212 is located on a side of the first supporting portion 1211 close to the device to be cut.

[0055] During use, the device to be cut (or oxygenator 9000 ) is mounted on the rotating shaft 1100 , which drives the oxygenator 9000 to rotate, and the slitting blade is gradually fed in the radial direction of the oxygenator 9000 to cut off the remaining material 9200 of the oxygenator 9000 .

[0056] On the one hand, the use of the rotational cutting method makes the oxygenator 9000 more evenly stressed in the radial direction. Moreover, when the slitting knife is fed slowly, the component of the cutting force is mainly along the tangential direction of the oxygenator 9000, while the component of the force generated in the radial direction of the oxygenator 9000 is smaller, thereby reducing the maximum value of the radial force acting on the oxygenator 9000 during slitting, thereby reducing the deformation of the oxygenator 9000 during rubber cutting.

[0057] On the other hand, the first support portion 1211 supports the residual material 9200, thereby improving the rigidity (that is, the ability to resist deformation) of the residual material 9200, and the second support portion 1212 supports the main body 9100, thereby improving the rigidity of the main body 9100 and further reducing the deformation of the oxygenator 9000 during rubber cutting.

[0058] Under the combined effect of the above aspects, the cutting tool can reduce the deformation of the oxygenator 9000 when cutting rubber, and improve the product quality of the oxygenator 9000.

[0059] It is understood that the first support portion 1211 and the second support portion 1212 may partially or completely contact the inner sidewall of the oxygenator 9000 in the circumferential direction, as long as they can support the oxygenator 9000 and improve the deformation resistance of the oxygenator 9000. The second support portion 1212 also serves to connect the body 9100 and the fixing member 1200, preventing the oxygenator 9000 from separating from the fixing member 1200 after the residual material 9200 is completely removed.

[0060] Of course, in some other embodiments, the fixing member 1200 may also be connected to the main body 9100 through other structures, such as a snap-fit structure, a plug-in structure, etc. for connection.

[0061] In some embodiments, there are two fixing members 1200 , and the two fixing members 1200 are respectively used to fix the two ends of the device to be cut, thereby improving the fixing effect.

[0062] In some embodiments, the fixture 1200 includes a first collar 1210, with a first support portion 1211 and a second support portion 1212 located on the first collar 1210. Specifically, a portion of the outer wall of the first collar 1210 serves as the first support portion 1211, while another portion of the outer wall of the first collar 1210 serves as the second support portion 1212. The first support portion 1211 and the second support portion 1212 fully contact the inner wall of the oxygenator 9000 in the circumferential direction, thereby improving support uniformity.

[0063] Furthermore, in an embodiment where the device to be cut is an oxygenator 9000, when the first collar 1210 provides support, the first collar 1210 can be used to form a glue-filling cavity when the oxygenator 9000 is glue-filled, and the first collar 1210 is bonded to the oxygenator 9000.

[0064] In other words, the first collar 1210 not only provides support during the glue cutting process but also serves a purpose during the glue pouring process, enriching the functionality of the first collar 1210 and simplifying the manufacturing tooling and process for the oxygenator 9000. Prior to glue pouring (e.g., while the membrane filament sleeve is being wound around the membrane roll, or after the membrane roll is wound), the first collar 1210 and the glue pouring tooling must be installed at both ends of the oxygenator 9000. The outer wall of the first collar 1210 and the glue pouring tooling enclose a glue pouring cavity. This cavity accommodates the portion of the membrane roll that extends beyond the end of the membrane filament sleeve. After glue pouring, the remaining material 9200 to be cut is formed within the cavity.

[0065] The first collar 1210 is secured to the oxygenator 9000 via adhesive bonding, simplifying the connection between the fixing member 1200 and the oxygenator 9000, thereby simplifying the structure and use of the cutting tool. This design also eliminates the need to remove the glue potting chamber. The first collar 1210 can be removed after the glue is cut, preventing damage to the oxygenator 9000 caused by repeated assembly and disassembly.

[0066] It is understandable that, at this time, the second support portion 1212 can also be fixedly connected to the main body 9100 by bonding.

[0067] In some embodiments, the fixing member 1200 includes a second shaft ring 1220, and the second shaft ring 1220 is connected to the first shaft ring 1210 to stabilize the first shaft ring 1210. Figure 2 The second collar 1220 can be connected to the first collar 1210 by screws, or by other commonly used connection methods such as pins and splines. As long as the torque can be transmitted between the first collar 1220 and the second collar 1210, the oxygenator 9000 can rotate stably under the drive of the rotating shaft 1100.

[0068] In an embodiment where the device to be cut is an oxygenator 9000, the fixing member 1200 can also be used to form a glue pouring cavity when the device to be cut is glued. At this time, the fixing member 1200 and the oxygenator 9000 are bonded and connected. In some embodiments, the fixing member also forms a glue overflow cavity 1213, which is connected to the glue pouring cavity.

[0069] Specific reference Figure 2 and Figure 3 In the embodiment, the glue overflow cavity 1213 can be formed by the first collar 1210, and the first collar 1210 can also form a communication channel 1214 for flowing glue and a reinforcing rib 1215. The communication channel 1214 connects the glue overflow cavity 1213 and the glue pouring cavity.

[0070] Reference Figure 4 According to the rubber cutting equipment provided in this application, it includes an installation module, a cutting module and a cutting tool provided in this application. The cutting tool is installed on the installation module, and the cutting module includes a slitting knife 3100.

[0071] The present application also provides a method for manufacturing an oxygenator for use in combination with a rubber cutting device.

[0072] Reference Figure 7 The oxygenator manufacturing method comprises the following steps:

[0073] Step S100: The oxygenator 9000 is installed on the cutting tool;

[0074] Step S200: The slitting knife 3100 moves to a set rubber cutting position;

[0075] Step S300: The rotating shaft 1100 drives the oxygenator 9000 to rotate;

[0076] Step S400 : The cutting blade 3100 approaches the oxygenator 9000 and cuts off the remaining material 9200 at the end of the oxygenator 9000 .

[0077] The rubber cutting equipment provided in this application includes the cutting tool provided in this application. The oxygenator manufacturing method provided in this application uses the cutting tool provided in this application, and therefore has the corresponding beneficial effects provided by the cutting tool, which will not be repeated here.

[0078] Reference Figure 4 In some embodiments, the mounting module includes a chuck 2110 and a support member. The chuck 2110 is used to clamp one end of the rotating shaft 1100, and the support member is used to support the other end of the rotating shaft 1100. The chuck 2110 and the support member form fulcrums at both ends of the rotating shaft 1100, thereby preventing the rotating shaft 1100 from forming a simply supported beam, reducing the amplitude of bending deformation of the rotating shaft 1100, and improving the rotational stability of the rotating shaft 1100, thereby improving the cutting quality of the oxygenator 9000.

[0079] The chuck 2110 may be a conventional design in the related art. The mounting module includes a first driver 2120 , which is in transmission connection with the chuck 2110 , thereby driving the rotating shaft 1100 to rotate.

[0080] The support member can be in the form of a thimble, a bearing seat, etc., as long as it can form a fulcrum at one end of the rotating shaft 1100. Figure 4 In some embodiments, the support member includes a first bearing seat 2211. In some embodiments, a plurality of first bearing seats 2211 are sequentially arranged in the axial direction of the rotating shaft 1100. The support member forms a plurality of fulcrums, thereby further improving the rotational stability of the rotating shaft 1100.

[0081] In some embodiments, the mounting module includes a first slide 2221, on which the support member is mounted. The first slide 2221 can drive the support member toward or away from the rotating shaft 1100. The support member acts as a fulcrum when approaching the rotating shaft 1100, and moves away from the rotating shaft 1100 to facilitate installation of the oxygenator 9000 and the fixing member 1200 toward the rotating shaft.

[0082] Reference Figure 4 In some embodiments, the first slide 2221 is installed by a first guide rail 2222, and the first guide rail 2222 extends axially, so that the first slide 2221 can be axially close to or away from the rotating shaft 1100. The mounting module also includes a locking member 2223, which is used to fix the first slide 2221 after the first slide 2221 moves into place. Figure 4 In the embodiment, the locking member 2223 is installed on the first slide 2221 through the screw hole. The position of the locking member 2223 corresponds to the first guide rail 2222. The locking member 2223 is rotated so that the end of the locking member 2223 abuts against the first guide rail 2222, thereby fixing the first slide 2221.

[0083] Reference Figure 5 In some embodiments, the slitting blade 3100 includes a blade disc 3110 and a blade shaft 3120. The blade disc 3110 is mounted on the rotatable blade shaft 3120. When the blade disc 3110 contacts the oxygenator 9000, the blade disc 3110 rotates and cuts the residual material 9200, driven by the oxygenator 9000. In some embodiments, the cutting module includes a blade holder 3200, which includes a second bearing seat 3210. The blade shaft 3120 is mounted on the second bearing seat 3210 to ensure smooth rotation of the blade disc 3110.

[0084] In some embodiments, the slitting knife 3100 can be moved radially closer to or farther from the rotating shaft 1100, thereby enabling the slitting knife 3100 to be fed to the side of the oxygenator 9000. The slitting knife 3100 can be moved axially, thereby adjusting the cutting position of the slitting knife 3100. Figure 5 In some embodiments, the cutter frame 3200 includes a second slide 3220 and a third slide 3250. The second slide 3220 can move in a direction perpendicular to the axis of the rotating shaft 1100 (referred to as a transverse direction), and the third slide 3250 can move in a direction parallel to the axis of the rotating shaft 1100 (referred to as a longitudinal direction). The cutter frame 3200 also includes a second driver 3230 and a third driver 3240, which are used to drive the second slide 3220 and the third slide 3250, respectively.

[0085] In some embodiments, the cutting module includes two slitting knives 3100, which are spaced apart in the axial direction and are used to cut the two ends of the oxygenator 9000. In other embodiments, the cutting module includes only one slitting knife 3100. In this case, the axial movement of the slitting knife 3100 can also switch the position of the slitting knife 3100, so that the slitting knife 3100 corresponds to the remaining material 9200 at the two ends of the oxygenator 9000.

[0086] In order to make the alignment and feeding of the scoring cutter 3100 more accurate, in some embodiments, the rubber cutting device includes a control module to perform closed-loop control on the scoring cutter 3100. Figure 4 The control module includes an image collector 4100 (such as a CCD camera), which is directed toward the cutting position of the slitting knife 3100 to capture the feeding movement of the slitting knife 3100 and the cutting process of the residual material 9200, so as to observe and monitor the cutting of the rubber in real time.

[0087] Reference Figure 6 The control module also includes a controller and a display 4200. The controller is installed in a control box 4300. The display 4200 is used for information display and interactive operation. The video captured by the image collector 4100 can be displayed on the display 4200. On the one hand, it is convenient to observe the knife setting and rubber cutting status. On the other hand, the display 4200 can also observe the rubber cutting process from the outside, avoiding the danger of the slitting knife 3100 breaking during rubber cutting. The controller controls the slitting knife 3100 based on the input and collected relevant parameters.

[0088] Accordingly, step S200 of the oxygenator manufacturing method includes: photographing a position image of the slitting knife 3100 and calibrating the slitting knife 3100 according to the position image.

[0089] Calibrating the slitting knife 3100 includes calibrating the slitting knife 3100. For example, in some embodiments, the slitting knife 3100 is first returned to a preset zero position in the longitudinal and transverse directions. The slitting knife 3100 is then moved longitudinally to the final cutting position. The longitudinal coordinate of the slitting knife 3100 is measured and recorded. Due to assembly errors or part dimensional tolerances, this value is usually not fixed. Next, the slitting knife 3100 is fed transversely toward the residual material 9200 so that the slitting knife 3100 just contacts the outer edge of the residual material 9200. The transverse coordinate of the slitting knife 3100 is measured and recorded. The transverse feed distance for cutting is then calculated based on the dimensional parameters of the residual material 9200 at different positions on the drawing.

[0090] In some embodiments, the slitting blade 3100 can rotate to adjust its angle relative to the rotating shaft 1100, thereby allowing the slitting blade 3100 to cut into the oxygenator 9000 at a set angle. In some embodiments, the slitting blade holder 3200 includes a first mounting seat 3260 and a second mounting seat 3270. The first mounting seat 3260 can rotate in a first direction, and the second mounting seat 3270 can rotate in a second direction. The first and second directions are respectively perpendicular to the axial direction of the rotating shaft 1100, thereby enabling the angle of the slitting blade 3100 to be adjusted.

[0091] "Rotation in a first direction" means that the axis of rotation is parallel to the first direction, for example, Figure 5 ,exist Figure 5 , the first direction corresponds to the up-down direction, the second direction corresponds to the front-back direction, and the axial direction of the rotating shaft 1100 corresponds to the left-right direction. The first mounting seat 3260 includes a first mounting plate facing the first direction, the first mounting plate having a first arc-shaped mounting slot. The first mounting seat 3260 is mounted to the second slide 3220 via the first mounting slot and a screw passing through the first mounting slot, thereby allowing the first mounting seat 3260 to rotate within a certain angle range in the first direction. The second mounting seat 3270 includes a second mounting plate facing the second direction, the second mounting plate having a second arc-shaped mounting slot. The second mounting seat 3270 is mounted to the first mounting seat 3260 via the second mounting slot and a screw passing through the second mounting slot, thereby allowing the second mounting seat 3270 to rotate within a certain angle range in the second direction.

[0092] In order to more accurately control the angle, the cutting frame 3200 further includes an adjusting member 3280, which is used to position the first mounting seat 3260 and the second mounting seat 3270. In other words, the target angle is first set by the adjusting member 3280, and then fixed by screws. Figure 5 The adjusting member 3280 may also be a screw. The two sets of adjusting members 3280 are respectively against the first mounting seat 3260 and the second mounting seat 3270, and the angle is fine-tuned by rotating the screws.

[0093] In some embodiments, the slitting knife frame 3200 further includes a movable shield 3290 , which is used to protect the slitting knife 3100 when not in operation.

[0094] Reference Figure 6 In some embodiments, the rubber cutting equipment further includes an operating cabinet, which comprises a frame 5100, wall panels 5200, and a door 5300. The mounting module and cutting module are located within the operating cabinet to prevent external contamination of the rubber cutting environment. The image acquisition device 4100 is located within the operating cabinet, while the display 4200 and control box 4300 are located outside the cabinet.

[0095] In the case where the fixing member 1200 has a first collar 1210 , step S100 includes:

[0096] Step S110: before glue pouring, the first collar 1210 is mounted on both ends of the oxygenator 9000, so that the first collar 1200 is bonded to the oxygenator 9000 by glue pouring.

[0097] In the case where the fixing member 1200 further includes a second collar 1220 , step S100 includes:

[0098] Step S120 : sequentially installing a second collar 1220 , the oxygenator 9000 with the first collar 1210 , and another second collar 1220 on the rotating shaft 1100 . The second collar 1220 is fixedly connected to the rotating shaft 1100 , and the first collar 1210 is fixedly connected to the second collar 1220 .

[0099] To improve the quality of rubber cutting, in some embodiments, step S300 includes: removing the remaining material 9200 in steps according to the set number of slices and slice thickness. In other words, the thicker remaining material 9200 is divided into multiple slices and removed step by step, reducing the force applied during a single cutting and minimizing the deformation of the oxygenator 9000.

[0100] Specifically, the slice thickness can be set between 2mm and 5mm. On the one hand, it avoids the slice thickness being too thin, reducing the risk of debris generated by cutting clogging the through holes of the oxygenation membrane filament. On the other hand, it avoids the slice thickness being too thick, reducing the force on the blade of the slitting knife 3100, and reducing the risk of deformation of the blade causing the end face of the oxygenator 9000 to be uneven after cutting.

[0101] On this basis, the determination of slice thickness can also take into account the radial dimensions of the remaining material 9200, specifically the difference between the outer and inner diameters of the remaining material 9200 at the cutting location. Specifically, the ratio of the slice's axial dimension (i.e., slice thickness) to its radial dimension should be controlled to avoid fragmentation of the remaining material 9200 during cutting due to excessively large radial dimensions and too small axial slice thickness. This protects the slitting blade 3100 and prevents breakage.

[0102] For example, a safety factor k may be set, and the number of slices and the thickness of each slice may be selected appropriately according to the actual shape and size of the residual material 9200 of the oxygenator 9000, so that the ratio of the slice thickness to the radial dimension is greater than the safety factor.

[0103] The number of slicing times can be set based on the thickness of the slice and the size of the residual material 9200. In some embodiments, the number of slicing times can be set to 5-6 times. In some embodiments, the first cut is a dry cut, that is, the slitting knife 3100 does not come into contact with the residual material 9200. The dry cut can be used to check whether there are any problems with the tool setting and program operation.

[0104] To further improve cutting quality while ensuring cutting efficiency, in some embodiments, the slitting knife 3100 first rapidly moves to a preparatory position near the remaining material 9200, then slowly feeds toward the remaining material 9200 to begin cutting. For example, the slitting knife 3100's rapid longitudinal and transverse feed speeds (i.e., speeds when not cutting) can be set to 40-50 mm / s, and the slitting knife 3100's rubber cutting feed speed (i.e., speed during cutting) can be set to less than or equal to 0.3 mm / s. When the slitting knife 3100 moves laterally at the rapid feed speed to approximately 4-5 mm from the remaining material 9200, it slowly feeds laterally at the rubber cutting feed speed to begin cutting. After cutting is complete, the slitting knife 3100 retreats to a horizontal zero point at the rapid feed speed, then moves longitudinally at the rapid feed speed to the next slice thickness, and then feeds laterally at the rapid feed speed to a position approximately 4-5 mm from the remaining material 9200. This cycle repeats until one end is completely cut.

[0105] In order to control the force during cutting within an appropriate range, the rotation speed of the rotating shaft 1100 can be set to 15-20 r / min.

[0106] In a specific embodiment of the present application, the rapid feed speed is 40 mm / s, the rubber cutting feed speed is 0.2 mm / s, and the rotation speed of the rotating shaft 1100 is 15 r / min.

[0107] In order to cope with emergencies, in some embodiments, step S300 further includes: in the event of a main power failure, switching to a backup power supply to power the slitting knife 3100, and the slitting knife 3100 executing a retraction procedure. The backup power supply can be a UPS power supply.

[0108] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0109] In some optional embodiments, the functions / operations mentioned in the block diagram may not occur in the order mentioned in the operation diagram. For example, depending on the functions / operations involved, the two boxes shown in succession may actually be executed substantially simultaneously or the boxes can sometimes be executed in reverse order. In addition, the embodiments presented and described in the flow chart of the present application are provided in an exemplary manner for the purpose of providing a more comprehensive understanding of the technology. The disclosed method is not limited to the operations and logic flows presented herein. Optional embodiments are contemplated in which the order of the various operations is changed and the sub-operations described as a part of a larger operation are performed independently.

[0110] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A cutting tool, characterized in that: include: A rotating shaft, the rotating shaft being used to pass through the device to be cut; A fixing part, which is installed on the rotating shaft, is used to fix the device to be cut and to form a glue pouring cavity when the device to be cut is poured with glue. The fixing part also forms an overflow glue cavity, which is connected to the glue pouring cavity. After pouring glue, residual material to be cut off is formed in the glue pouring cavity. The fixing part includes a first supporting part and a second supporting part. The first supporting part and the second supporting part are used to extend into the center hole of the device to be cut. The first supporting part is used to abut the residual material of the device to be cut, and the second supporting part is used to abut the body of the device to be cut.

2. The cutting tool according to claim 1, characterized in that: There are two fixing members, each used to fix the two ends of the device to be cut.

3. The cutting tool according to claim 1, characterized in that: The fixing member includes a first shaft ring, and the first supporting portion and the second supporting portion are located on the first shaft ring.

4. The cutting tool according to claim 3, characterized in that: The fixing member further includes a second shaft ring, which is connected to the first shaft ring and is used to stabilize the first shaft ring.

5. The cutting tool according to any one of claims 1 to 4, characterized in that: The device to be cut is an oxygenator.

6. The cutting tool according to claim 1, characterized in that: The fixing member forms a communicating channel, the communicating channel is communicated with the glue overflow chamber at one end close to the center of the device to be cut, and the communicating channel is communicated with the glue pouring chamber at one end away from the center of the device to be cut. The communicating position between the communicating channel and the glue overflow chamber is flush with the designed liquid level of the glue pouring chamber in the axial direction.

7. A rubber cutting device, characterized in that: The rubber cutting equipment includes a mounting module, a cutting module and the cutting tool according to any one of claims 1 to 6, the cutting tool is installed on the mounting module, and the cutting module includes a slitting knife.

8. The rubber cutting equipment according to claim 7, characterized in that: The mounting module includes a chuck and a support member, wherein the chuck is used to clamp one end of the rotating shaft, and the support member is used to support the other end of the rotating shaft.

9. The rubber cutting equipment according to claim 8, characterized in that: The support member includes a first bearing seat, and a plurality of first bearing seats are arranged in sequence in the axial direction of the rotating shaft.

10. The rubber cutting equipment according to claim 8, characterized in that: The mounting module includes a first slide, the support member is mounted on the first slide, and the first slide can drive the support member to move closer to or away from the rotating shaft.

11. The rubber cutting equipment according to claim 7, characterized in that: The cutting module includes a cutting knife frame, the slitting knife includes a cutter disc and a cutter shaft, the cutter disc is mounted on the cutter shaft, the cutting knife frame includes a second bearing seat, and the cutter shaft is mounted on the second bearing seat.

12. The rubber cutting equipment according to claim 11, characterized in that: The cutting knife frame includes a second slide, which can be moved to feed the slitting knife toward the side of the device to be cut. The cutting knife frame includes a third slide, which can be moved to adjust the position of the slitting knife in the axial direction of the rotating shaft.

13. The rubber cutting equipment according to claim 11, characterized in that: The cutting knife frame includes a first mounting seat and a second mounting seat, the first mounting seat can rotate in a first direction, and the second mounting seat can rotate in a second direction to adjust the angle of the slitting knife, and the first direction and the second direction are respectively perpendicular to the axial direction of the rotating shaft.

14. A method for manufacturing an oxygenator, characterized in that: The method for manufacturing an oxygenator uses the rubber cutting device according to any one of claims 7 to 13, and the method for manufacturing an oxygenator comprises the following steps: The oxygenator is mounted on the cutting tool; The slitting knife moves to the set cutting position; The rotating shaft drives the oxygenator to rotate; The slitting knife is close to the oxygenator and cuts off the remaining material at the end of the oxygenator.

15. The method for manufacturing an oxygenator according to claim 14, characterized in that: Before glue pouring, first collars are mounted on both ends of the oxygenator, so that the first collars are bonded and connected to the oxygenator through glue pouring.

16. The method for manufacturing an oxygenator according to claim 14, wherein: A position image of the slitting knife is captured, and the slitting knife is calibrated according to the position image.

17. The method for manufacturing an oxygenator according to claim 14, wherein: The excess material is removed step by step according to the set number of slices and slice thickness.

18. The method for manufacturing an oxygenator according to claim 14, wherein: The cutting speed of the slitting knife is less than or equal to 0.3 mm / s, and the rotation speed of the rotating shaft is 15-20 r / min.

Images