Automatic cutting device for variable cavity catheter

Abstract

The utility model discloses an automatic cutting device for variable cavity catheter, including work platform, the vertical installation board of work platform is equipped with, and the installation board one side is equipped with two conveying assemblies of arranging and synchronism operation up and down, and the installation board of conveying assembly entrance and export is all through fixed component respectively equipped with entrance guide pipe and export guide pipe, and the installation board of export guide pipe far away conveying assembly one side is equipped with the discharge guide pipe through fixed component, and the catheter body is clamped between two conveying assemblies and is in the drive of conveying assembly and passes through entrance guide pipe, conveying assembly, export guide pipe and discharge guide pipe in proper order, and is separated through the notch between export guide pipe and discharge guide pipe, and the cutting assembly is equipped with in the notch right above, and the cutting end of cutting assembly enters the notch and carries out cutting to the catheter body, and the recognition camera is equipped with below the notch, is used for identifying the place of field disappearance outside catheter body, and one side of work platform is equipped with computer, and is convenient for control cutting.

Description

Technical Field

[0001] This utility model relates to the field of medical plastic product processing equipment technology, and in particular to an automatic cutting device for variable lumen catheters. Background Technology

[0002] CN215537619U discloses a variable-lumen conduit, which, during production, consists of multiple variable-lumen conduits on a single tube body and requires cutting and segmentation during processing.

[0003] Cutting is generally done using a silicone drainage catheter positioning and cutting device disclosed in CN222115230U. This device cuts at the point where the outer cross section of the upper variable-lumen catheter disappears, specifically at the junction of the outer cross section of the upper variable-lumen catheter and the circular tube segment of the lower variable-lumen catheter. This separates the upper variable-lumen catheter into independent catheters. However, using this cutting device to cut the variable-lumen catheter presents the following problems: 1. When judging the junction between the outer ten-section of the variable cavity guide tube and the next circular section of the variable cavity guide tube by human eye, the tube itself is relatively thin. Continuous observation by the naked eye is very stressful, and manual labor is prone to fatigue or errors, resulting in defects in the cutting. 2. Material movement during the process is also done manually, and the control of the cutting position varies depending on the worker's intuition, resulting in a large error. Utility Model Content

[0004] This utility model provides an automatic cutting device for variable cavity conduits, aiming to solve the problems mentioned above, such as low efficiency of manual judgment, high labor intensity, and large errors in manual control of material movement when cutting variable cavity conduits using existing cutting devices.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: An automatic cutting device for variable-lumen catheters includes a working platform with a vertically mounted mounting plate. Two conveying components are arranged vertically and operate synchronously on one side of the mounting plate. The mounting plates at the inlet and outlet of each conveying component are respectively equipped with an inlet guide pipe and an outlet guide pipe via fixing components. The mounting plate on the side of the outlet guide pipe away from the conveying components is equipped with a discharge guide pipe via fixing components, and the discharge guide pipe and outlet guide pipe are coaxial. The catheter body is clamped between the two conveying components and, driven by the conveying components, sequentially passes through the inlet guide pipe, the conveying components, the outlet guide pipe, and the discharge guide pipe. The outlet guide pipe and the discharge guide pipe are separated by a slit. A cutting component is located directly above the slit, and its cutting end enters the slit to cut the catheter body. A recognition camera is located directly below the slit to identify the location where the external ten-field markings on the catheter body disappear. A computer is located on one side of the working platform, and the conveying components, cutting components, and recognition camera are all electrically connected to the computer.

[0006] Preferably, the conveying component and the cutting component are linked together by a computer and a recognition camera.

[0007] More preferably, the inlet guide pipe and the outlet guide pipe are coaxial, and the guide pipe body passes through the inlet guide pipe, the conveying assembly, the outlet guide pipe and the discharge guide pipe in a straight sequence.

[0008] Furthermore, the outer diameters of the inlet guide pipe, outlet guide pipe, and discharge guide pipe are all the same as the outer diameter of the guide pipe body.

[0009] More preferably, the fixing component includes a U-shaped plate with an opening perpendicular to the mounting plate, a limiting groove is formed in the opening of the U-shaped plate, the bottom of the opening of the U-shaped plate is detachably fixed to the mounting plate by a mounting seat and fasteners, a limiting screw is threaded on the U-shaped plate, and the inlet guide pipe, outlet guide pipe or discharge guide pipe passes through the limiting groove and is pressed and fixed in the limiting groove by the limiting screw.

[0010] Furthermore, both ends of the opening of the limiting groove are provided with limiting plates. The limiting plates extend and converge toward the side away from the limiting groove. The limiting screw is vertically threaded with the limiting plate, and the end of the limiting screw is inclined toward the limiting groove.

[0011] More preferably, each of the conveying components includes a drive roller and a driven roller that rotate with the mounting plate. A drive gear is synchronously mounted on the drive roller, and a driven gear is synchronously mounted on the driven roller. The drive gear and the driven gear are connected by a synchronous belt. A servo motor is provided on the other side of the mounting plate to rotate synchronously with the drive roller. The synchronous belt is parallel to the intermediate axis of the guide tube body on the side closest to the guide tube body.

[0012] Furthermore, each mounting plate within the space surrounding the synchronous belt is provided with a corresponding fixing box, and each fixing box has several support rollers rotatably mounted on the side near the conduit body, the support rollers supporting the corresponding synchronous belt on the side near the conduit body.

[0013] More preferably, the cutting assembly includes a fixing plate fixed to a mounting plate directly above the cut, the fixing plate being perpendicular to the mounting plate, a telescopic cylinder being fixedly mounted on the side of the fixing plate near the cut, the output end of the telescopic cylinder being vertically downward and pointing towards the cut, a blade sleeve being fixedly mounted on the output end of the telescopic cylinder, and a cutting blade being detachably fixed inside the blade sleeve by fastening bolts.

[0014] Furthermore, the width of the slit is the same as the width of the cutting blade.

[0015] The beneficial effects of this utility model are: 1. This utility model improves cutting accuracy and reduces the workload of workers by identifying the pipe at the cut point through a camera and using computer-aided control for cutting, making cutting efficient and easy. 2. The device automatically feeds materials through a conveying mechanism and uses computer-aided control for fine-tuning. It also uses a recognition camera to monitor the degree of fine-tuning of the guide tube body, further ensuring the accuracy of cutting and reducing errors caused by workers' sense of touch. 3. The foundation for automation is left, and further design can be used to achieve fully automated cutting. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a front structural diagram of the present invention; Figure 3 This is a schematic diagram of the rear structure of the present invention; Figure 4 This is a partially enlarged schematic diagram of the fixing component of this utility model; Figure 5 This is a front view schematic diagram of the material feeding process of this utility model; Figure 6 This is a front view schematic diagram of the cutting process of this utility model; In the diagram: 1. Working platform; 2. Mounting plate; 3. Fixing components; 301. Mounting base; 302. U-shaped plate; 303. Limiting groove; 304. Limiting plate; 305. Screw hole; 306. Limiting screw; 4. Conveying components; 401. Drive roller; 402. Drive gear; 403. Synchronous belt; 404. Driven roller; 405. Driven gear; 406. Servo motor; 407. Guide roller; 408. Guide gear; 409. Fixing box; 410. Support roller; 5. Cutting assembly; 501. Fixing plate; 502. Telescopic cylinder; 503. Blade sheath; 504. Cutting blade; 505. Fastening bolts; 6. Inlet guide tube; 7. Outlet guide tube; 8. Discharge guide tube; 9. Identification camera; 10. Computer; 11. Conduit body; 12. Incision. Detailed Implementation

[0017] The embodiments will be further described below with reference to the accompanying drawings.

[0018] like Figures 1-6As shown in the preferred embodiment 1, the automatic cutting device for a variable-lumen catheter includes a working platform 1. A mounting plate 2 is vertically mounted on the working platform 1. Two conveying components 4, arranged vertically and operating synchronously, are mounted on one side of the mounting plate 2. An inlet guide pipe 6 and an outlet guide pipe 7 are respectively provided on the mounting plate 2 at the inlet and outlet of the conveying components 4 via fixing components 3. A discharge guide pipe 8 is provided on the mounting plate 2 on the side of the outlet guide pipe 7 away from the conveying components 4 via fixing components 3, and the discharge guide pipe 8 is coaxial with the outlet guide pipe 7. The catheter body 11 is clamped between the two conveying components. The components 4 pass sequentially through the inlet guide pipe 6, the conveying component 4, the outlet guide pipe 7, and the discharge guide pipe 8 under the drive of the conveying component 4. The outlet guide pipe 7 and the discharge guide pipe 8 are separated by a cut 12. A cutting component 5 is provided directly above the cut 12. The cutting end of the cutting component 5 enters the cut 12 to cut the guide body 11. A recognition camera 9 is provided directly below the cut 12 to identify the place where the outer ten-field of the guide body 11 disappears. A computer 10 is provided on one side of the work platform 1. The conveying component 4, the cutting component 5, and the recognition camera 9 are all electrically connected to the computer 10.

[0019] Staff can control the cutting process via computer 10: In use, the staff can control the forward and backward movement of the catheter body 11 by controlling the conveying direction of the conveying component 4 through the computer 10, which is convenient for fine-tuning the position of the catheter body 11. The conveying component 4 is turned on to continuously convey the catheter body 11, and the status of the catheter body 11 at the incision 12 is monitored in real time by the recognition camera 9 and displayed and identified on the computer 10. When the outer ten field appears, the continuous conveying is switched to indirect conveying until the outer ten field disappears. Then the conveying component 4 is stopped. The position of the catheter body 11 is then fine-tuned so that the place where the outer ten field disappears, that is, the connection between the outer ten field of the previous variable cavity catheter and the circular tube section of the next variable cavity catheter, coincides with the cutting end of the cutting component 5. The computer 10 controls the start of the cutting assembly 5. The cutting end of the cutting assembly 5 enters the incision 12 to cut the catheter body 11, and then resets. After cutting is completed, the computer 10 restarts the conveying component 4. The guide tube body 11 pushes against the cut cavity guide tube and enters the discharge guide tube 8. The cut cavity guide tube is pushed out of the discharge guide tube 8 to complete the discharge. Wait for the next time when the outer ten fields disappear to cut. The entire device can be controlled and operated by personnel on computer 10, and the identification camera 9 can be used to assist in magnified observation, thereby improving cutting efficiency and accuracy, and laying the foundation for automatic control cutting.

[0020] Preferably, the mounting plate 2 can be fixed to the working platform 1 by welding, and a reinforcing rib is provided between the mounting plate 2 and the working platform 1 to ensure support.

[0021] In a preferred embodiment 2, the conveying component 4 and the cutting component 5 are linked together by the computer 10 and the recognition camera 9.

[0022] The automated cutting process is as follows: The recognition camera 9 identifies the place where the outer ten-field disappears, that is, the connection between the outer ten-field of the previous variable lumen catheter and the circular tube segment of the next variable lumen catheter. When the place where the outer ten-field disappears coincides with the cutting end of the cutting component 5, the recognition camera 9 controls the delivery component 4 to brake and starts the cutting component 5 to complete one cut through the computer 10. When the cutting component 5 is reset and receives a reset signal through the computer 10, the computer 10 starts the delivery component 4 to continue delivering the catheter body 11 until the recognition camera 9 identifies the place where the outer ten-field disappears, and repeats the above operation. It can perform automatic cutting, and staff can monitor the process and switch or repair it in time if an accident occurs, which greatly improves cutting efficiency and reduces the workload of staff.

[0023] In a preferred embodiment 3, the inlet guide pipe 6 and the outlet guide pipe 7 are coaxial, and the guide pipe body 11 passes straight through the inlet guide pipe 6, the conveying assembly 4, the outlet guide pipe 7, and the discharge guide pipe 8 in sequence. This ensures the stability of the pipe movement and the stability of the cutting.

[0024] In a more preferred embodiment 4, the outer diameters of the inlet guide pipe 6, the outlet guide pipe 7, and the discharge guide pipe 8 are all the same as the outer diameter of the guide pipe body 11. This ensures the effectiveness of limiting and guiding.

[0025] As a preferred embodiment 5, the fixing component 3 includes a U-shaped plate 302 with an opening perpendicular to the mounting plate 2. A limiting groove 303 is formed in the opening of the U-shaped plate 302. The bottom of the opening of the U-shaped plate 302 is detachably fixed to the mounting plate 2 by a mounting base 301 and fasteners. A limiting screw 306 is threaded onto the U-shaped plate 302. The inlet guide pipe 6, the outlet guide pipe 7, or the discharge guide pipe 8 passes through the limiting groove 303 and is pressed and fixed in the limiting groove 303 by the limiting screw 306.

[0026] As a more preferred embodiment 6, both ends of the opening of the limiting groove 303 are provided with limiting plates 304. The limiting plates 304 extend and approach the side away from the limiting groove 303. The limiting screw 306 is vertically threaded into the screw hole 305 provided on the limiting plate 304, and the end of the limiting screw 306 is inclined to point into the limiting groove 303.

[0027] In use, the inlet guide tube 6, outlet guide tube 7, or discharge guide tube 8 is passed through the limiting groove 303 of the corresponding fixing component 3. The limiting screw 306 is tightened to press and fix the tube body. The position of the inlet guide tube 6 when it is fixed can be adjusted by the tightening amount of the limiting screw 306. Fine adjustment is made until the inlet guide tube 6, outlet guide tube 7, and discharge guide tube 8 are coaxial. It is convenient to use, easy to install and disassemble, and can also be replaced according to the different diameter variable cavity guide tubes.

[0028] Preferably, the limiting plates 304 are symmetrically arranged about the limiting grooves 303, and each limiting plate 304 has at least two limiting screws 306 to ensure stability during fixing.

[0029] In a preferred embodiment 7, each of the conveying components 4 includes a drive roller 401 and a driven roller 404 that are rotatably coupled with the mounting plate 2. A drive gear 402 is synchronously mounted on the drive roller 401, and a driven gear 405 is synchronously mounted on the driven roller 404. The drive gear 402 and the driven gear 405 are coupled through a synchronous belt 403. A servo motor 406 is provided on the other side of the mounting plate 2 and rotates synchronously with the drive roller 401. The synchronous belt 403 is parallel to the intermediate axis of the guide tube body 11 on the side closest to the guide tube body 11.

[0030] The servo motor 406 provides driving force to drive the active roller 401 to rotate, thereby driving the synchronous belt 403 to rotate synchronously, thereby driving the guide tube body 11 clamped between the two conveying components 4 to move synchronously to complete the conveying.

[0031] Preferably, the gap between the timing belts 403 of the two delivery components 4 on the side close to the catheter body 11 is equal to or slightly smaller than the outer diameter of the catheter body 11, so as to ensure that the clamping fit is tight during delivery without deforming the catheter body 11, and to ensure the driving of the tube.

[0032] In a more preferred embodiment 8, each mounting plate 2 within the space surrounding the synchronous belt 403 is provided with a corresponding fixing box 409. Several support rollers 410 are rotatably mounted on the side of the fixing box 409 closest to the conduit body 11. The support rollers 410 support the corresponding synchronous belt 403 on the side closest to the conduit body 11. This ensures effective clamping and transmission. While the clamping drive at the driving gear 402 and driven gear 405 is usually sufficient to move the conduit body 11, the support rollers 410 can further expand the synchronous belt 403 to clamp the conduit body 11, preventing bending or deformation and ensuring the straightness and effective movement of the conduit body 11.

[0033] In a more preferred embodiment 9, the conveying assembly 4 further includes several guide rollers 407 that rotatably engage with the mounting plate 2. Guide gears 408 are synchronously mounted on the guide rollers 407, and the guide gears 408, driving gear 402, and driven gear 405 are all connected by a synchronous belt 403 for transmission. This facilitates adjustment.

[0034] Preferably, there is one guide gear 408, the drive gear 402 and the driven gear 405 are the same size, and the guide gear 408, the drive gear 402 and the driven gear 405 cooperate to form an isosceles triangle. The drive gear 402 and the driven gear 405 are located at the base corners close to the conduit body 11, and the guide gear 408 is located at the apex corner away from the conduit body 11.

[0035] In a preferred embodiment 10, the cutting assembly 5 includes a fixing plate 501 fixed on the mounting plate 2 directly above the cut 12. The fixing plate 501 is perpendicular to the mounting plate 2. A telescopic cylinder 502 is fixedly installed on the side of the fixing plate 501 near the cut 12. The output end of the telescopic cylinder 502 is vertically downward and points towards the cut 12. A blade sleeve 503 is fixedly installed on the output end of the telescopic cylinder 502. A cutting blade 504 is detachably fixed inside the blade sleeve 503 by fastening bolts 505.

[0036] The telescopic cylinder 502 provides driving force, which drives the blade sleeve 503 to move downward, thereby allowing the cutting blade 504 to enter the incision 12 to cut the conduit body 11.

[0037] In a more preferred embodiment 11, the width of the cut 12 is the same as the width of the cutting blade 504. On the one hand, this limits the width of the cut 12 to prevent it from being too wide, thus avoiding affecting the subsequent ejection of the cut pipe. On the other hand, it prevents the pipe from bending towards the cut 12 and being pulled out during cutting, thus limiting the pipe and ensuring the cutting effect.

[0038] Preferably, the fixing plate 501 can be fixed to the mounting plate 2 by welding; The telescopic cylinder 502 can be a dual-axis electric cylinder to ensure cutting stability. The dual-axis electric cylinder is fixedly installed to the fixing plate 501 by mounting screws. The blade sleeve 503 has an opening on the side away from the telescopic cylinder 502. The cutting blade 504 is embedded in the opening and is fastened to the blade sleeve 503 by the fastening bolt 505, which facilitates the replacement of the cutting blade 504. The bottom of the 504 cutting blade is angled for easier cutting.

[0039] In a preferred embodiment 12, the identification camera 9 is fixedly mounted on the work platform 1 with screws, and the camera end of the identification camera 9 is vertically upward and directly facing the cut 12.

[0040] The working principle of this utility model: In use, the staff can control the forward and backward movement of the catheter body 11 by controlling the conveying direction of the conveying component 4 through the computer 10, which is convenient for fine-tuning the position of the catheter body 11. The conveying component 4 is turned on to continuously convey the catheter body 11, and the status of the catheter body 11 at the incision 12 is monitored in real time by the recognition camera 9 and displayed and identified on the computer 10. When the outer ten field appears, the continuous conveying is switched to indirect conveying until the outer ten field disappears. Then the conveying component 4 is stopped. The position of the catheter body 11 is then fine-tuned so that the place where the outer ten field disappears, that is, the connection between the outer ten field of the previous variable cavity catheter and the circular tube section of the next variable cavity catheter, coincides with the cutting end of the cutting component 5. The computer 10 controls the start of the cutting assembly 5. The cutting end of the cutting assembly 5 enters the incision 12 to cut the catheter body 11, and then resets. After cutting is completed, the computer 10 restarts the conveying component 4. The guide tube body 11 pushes against the cut cavity guide tube and enters the discharge guide tube 8. The cut cavity guide tube is pushed out of the discharge guide tube 8 to complete the discharge. Wait for the next time when the outer ten fields disappear to cut. The entire device can be controlled and operated by personnel on computer 10, and can be magnified and observed with the aid of recognition camera 9, thereby improving cutting efficiency and accuracy.

Claims

1. An automatic cutting device for variable-lumen catheters, comprising a working platform (1), characterized in that, The working platform (1) is vertically mounted with a mounting plate (2). On one side of the mounting plate (2), there are two conveying components (4) arranged vertically and operating synchronously. The mounting plate (2) at the inlet and outlet of the conveying components (4) is respectively provided with an inlet guide pipe (6) and an outlet guide pipe (7) by a fixing component (3). The mounting plate (2) on the side of the outlet guide pipe (7) away from the conveying components (4) is provided with a discharge guide pipe (8) by a fixing component (3). The discharge guide pipe (8) and the outlet guide pipe (7) are coaxial. The guide tube body (11) is clamped between the two conveying components (4) and passes through the inlet in sequence under the drive of the conveying components (4). The guide tube (6), conveying assembly (4), outlet guide tube (7) and discharge guide tube (8) are separated by a cut (12). A cutting assembly (5) is provided directly above the cut (12). The cutting end of the cutting assembly (5) enters the cut (12) to cut the guide tube body (11). A recognition camera (9) is provided directly below the cut (12) to identify the place where the outer ten fields of the guide tube body (11) disappear. A computer (10) is provided on one side of the work platform (1). The conveying assembly (4), cutting assembly (5) and recognition camera (9) are all electrically connected to the computer (10).

2. The automatic cutting device for variable-lumen catheters according to claim 1, characterized in that, The conveying component (4) and the cutting component (5) are linked together by the computer (10) and the recognition camera (9).

3. The automatic cutting device for variable-lumen catheters according to claim 1 or 2, characterized in that, The inlet guide pipe (6) and the outlet guide pipe (7) are coaxial, and the guide pipe body (11) passes through the inlet guide pipe (6), the conveying assembly (4), the outlet guide pipe (7) and the discharge guide pipe (8) in a straight sequence.

4. The automatic cutting device for variable-lumen catheters according to claim 3, characterized in that, The outer diameters of the inlet guide pipe (6), outlet guide pipe (7) and discharge guide pipe (8) are all the same as the outer diameter of the guide pipe body (11).

5. The automatic cutting device for variable-lumen catheters according to claim 1 or 2, characterized in that, The fixing component (3) includes a U-shaped plate (302) with an opening perpendicular to the mounting plate (2). A limiting groove (303) is formed in the opening of the U-shaped plate (302). The bottom of the opening of the U-shaped plate (302) is detachably fixed to the mounting plate (2) by a mounting base (301) and fasteners. A limiting screw (306) is threaded on the U-shaped plate (302). The inlet guide pipe (6), the outlet guide pipe (7), or the discharge guide pipe (8) passes through the limiting groove (303) and is pressed and fixed in the limiting groove (303) by the limiting screw (306).

6. The automatic cutting device for variable-lumen catheters according to claim 5, characterized in that, The opening of the limiting groove (303) is provided with limiting plates (304) at both ends. The limiting plates (304) extend and approach the side away from the limiting groove (303). The limiting screw (306) is vertically threaded with the limiting plate (304), and the end of the limiting screw (306) is inclined to point into the limiting groove (303).

7. The automatic cutting device for variable-lumen catheters according to claim 1 or 2, characterized in that, Each of the conveying components (4) includes an active roller (401) and a driven roller (404) that rotate with the mounting plate (2). An active gear (402) is synchronously mounted on the active roller (401), and a driven gear (405) is synchronously mounted on the driven roller (404). The active gear (402) and the driven gear (405) are connected by a synchronous belt (403). A servo motor (406) is provided on the other side of the mounting plate (2) and rotates synchronously with the active roller (401). The synchronous belt (403) is parallel to the intermediate axis of the guide tube body (11) on the side closer to the guide tube body (11).

8. The automatic cutting device for variable-lumen catheters according to claim 7, characterized in that, The mounting plate (2) surrounding the synchronous belt (403) is provided with a corresponding fixing box (409). Several support rollers (410) are rotatably installed on the side of the fixing box (409) near the conduit body (11). The support rollers (410) support the corresponding synchronous belt (403) on the side near the conduit body (11).

9. The automatic cutting device for variable-lumen catheters according to claim 1 or 2, characterized in that, The cutting assembly (5) includes a fixing plate (501) fixed on the mounting plate (2) directly above the cut (12). The fixing plate (501) is perpendicular to the mounting plate (2). A telescopic cylinder (502) is fixedly installed on the side of the fixing plate (501) near the cut (12). The output end of the telescopic cylinder (502) is vertically downward and points towards the cut (12). A blade sleeve (503) is fixedly installed on the output end of the telescopic cylinder (502). A cutting blade (504) is detachably fixed inside the blade sleeve (503) by fastening bolts (505).

10. The automatic cutting device for variable-lumen catheters according to claim 9, characterized in that, The width of the cut (12) is the same as the width of the cutting blade (504).

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