Automatic rotating cutting device for drainage catheter
The automatic rotary cutting device with drainage conduit, utilizing high-speed spindle rotation and negative pressure suction hole design, solves the problems of cutting accuracy and debris removal, achieving a smooth cutting surface and efficient debris removal.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINGZHOU YIHAI TECH CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-07-31
AI Technical Summary
During the continuous production of drainage catheters, the cutting precision is difficult to control, which makes it difficult to control the cutting length. Furthermore, the cut is prone to deformation and debris, which is difficult to clean.
An automatic rotary cutting device with drainage conduit is adopted. The cutting blade is driven by the high-speed rotation of the main shaft. The negative pressure suction hole and the extension tube collection hole in the support box are used to achieve a smooth cut and timely cleaning of debris.
This method achieves a smooth cut surface for the drainage tube, prevents cut deformation, and allows for timely removal of debris, thereby improving cutting accuracy and production efficiency.
Smart Images
Figure CN224575782U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drainage catheter manufacturing technology, and in particular to an automatic rotary cutting device for drainage catheters. Background Technology
[0002] During the continuous production of drainage tubes, the continuously formed drainage tubes are cut. However, during the continuous production process on the production line, the cutting accuracy is not easy to control, which makes it difficult to control the length of the cut tubes. Therefore, it is necessary to precisely cut the drainage tubes that have been cut into sections on the production line again.
[0003] In the prior art, Chinese Patent Publication No. CN222115230U discloses a silicone drainage tube positioning and cutting device, including an operating table, a pneumatic cutting device on the operating table, a first drainage tube placement rod on one side of the pneumatic cutting device, a limiting groove for placing the drainage tube on the first drainage tube placement rod, and a slidable positioning block on the first drainage tube placement rod. This utility model provides a silicone drainage tube positioning and cutting device that can quickly and accurately cut silicone drainage tubes and flexibly set the cutting length.
[0004] However, in actual use, the cutting blade moves up and down to cut the tube. Because the tube is relatively soft, the cutting blade will squeeze the cut when it is pressed down. The cut end of the tube is easily deformed, and some debris may be generated at the cut, which is not easy to clean. Therefore, it needs to be improved. Utility Model Content
[0005] The purpose of this invention is to provide an automatic rotary cutting device for drainage tubes, which can promptly clean and collect debris and prevent debris residue from remaining at the cut.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an automatic rotary cutting device for drainage tubes, including a main shaft, a cutting blade inside the main shaft, a fixed tube at one end of the main shaft, a support box fixedly connected to the bottom of the fixed tube, an annular cavity inside the fixed tube, a suction hole at the top of the support box, a corresponding hole at the bottom of the fixed tube, an extension tube fixedly connected to one end of the fixed tube, a collection hole on the outer surface of the extension tube, an avoidance groove on the inner wall of the fixed tube, and a clamping cover engaged with the inner wall of the avoidance groove.
[0007] By adopting the above technical solution, when using the device, the operator passes the drainage tube through the inside of the fixed tube and then through the main shaft. The cutting position corresponds to the cutting blade. After the cutting length is adjusted, two clamping covers extend from the inner wall of the clearance groove to clamp and fix the outer surface of the drainage tube. The fixed part is close to the cutting point of the main shaft. When cutting, the main shaft rotates at high speed, driving the cutting blade to cut, thereby making the cutting surface of the drainage tube smoother and preventing deformation at the cut. At the same time, a certain negative pressure is generated inside the support box, which promotes the suction of the suction hole. The suction hole and the corresponding hole are connected to generate negative pressure inside the annular cavity. The extension tube is close to the main shaft and does not affect the rotation of the main shaft. The collection hole is close to the cut, so it can clean and collect debris in time and prevent debris from remaining at the cut.
[0008] A further feature of this invention is that the number of extension tubes is six, and the six extension tubes are arranged in a circular array at one end of the fixed tube.
[0009] By adopting the above technical solution, the distance between each pair of the six extension tubes is the same, and the suction range is fully covered.
[0010] A further feature of this invention is that a first cylinder is fixedly connected to the outer surface of the fixed tube, and a telescopic rod is fixedly connected to the output end of the first cylinder.
[0011] By adopting the above technical solution, the first cylinder is activated, which drives the extension and retraction of the telescopic rod.
[0012] A further feature of this invention is that a sealing sleeve is fixedly connected to the inner wall of the annular cavity, and the telescopic rod passes through the sealing sleeve and is fixedly connected to the clamping cover.
[0013] By adopting the above technical solution, the sealing sleeve does not affect the suction of the annular cavity, while providing a seal.
[0014] A further feature of this invention is that a sealing plate is snapped onto one side of the support box, and a mesh groove is fixedly connected to one end of the sealing plate.
[0015] By adopting the above technical solution, the mesh groove can be pulled out when the sealing plate is removed, and the mesh groove collects debris.
[0016] A further feature of this invention is that a suction connecting pipe is fixedly connected to the other side of the support box, and a handle is fixedly connected to the outer surface of the sealing plate.
[0017] By adopting the above technical solution, the suction connection pipe is connected to an external induced draft fan to provide suction power.
[0018] A further feature of this invention is that a drive box is provided on one side of the spindle, and a channel is provided inside the drive box.
[0019] By adopting the above technical solution, the channel inside the drive box can be used for the drainage conduit to pass through, and the end that protrudes is also fixed by a clamp.
[0020] A further feature of this invention is that a base is fixedly connected to the bottom of the drive box, and a conveyor frame is fixedly connected to the top of the base.
[0021] By adopting the above technical solution, one end of the conveying frame corresponds to one end of the fixed tube, and the conveying frame has a certain length.
[0022] A further feature of this invention is that the inner wall of the conveying frame is connected to a conveyor belt, and the number of conveyor belts is two.
[0023] By adopting the above technical solution, the conveyor belt provides sufficient support while transporting the drainage tube.
[0024] A further feature of this invention is that a second cylinder is fixedly connected to both sides of the drive box, and a second clamping cover is fixedly connected to the output end of the second cylinder.
[0025] By adopting the above technical solution, the second cylinder drives the second clamping cover to fix one end of the drainage tube passing through the channel inside the drive box, which has strong stability during cutting.
[0026] The beneficial effects of this utility model are:
[0027] 1. This utility model, through the coordinated arrangement of the main shaft, fixed tube, support box, annular cavity, suction hole, corresponding hole, extension tube, collection hole, clearance groove, and clamping cover, enables the device to be used by the operator. The drainage tube is passed through the inside of the fixed tube and then into the main shaft. The cutting position corresponds to the cutting blade. After the cutting length is adjusted, two clamping covers extend from the inner wall of the clearance groove to clamp and fix the outer surface of the drainage tube. The fixed part is close to the cutting point of the main shaft. During cutting, the high-speed rotation of the main shaft drives the cutting blade to cut, resulting in a smoother cut surface of the drainage tube and preventing deformation at the cut. Simultaneously, a certain negative pressure is generated inside the support box, promoting suction from the suction hole. The connection between the suction hole and the corresponding hole creates negative pressure inside the annular cavity. The extension tube is close to the main shaft and does not affect its rotation. The collection hole is close to the cut, allowing for timely cleaning and collection of debris, preventing debris residue at the cut.
[0028] 2. This utility model, through the coordinated arrangement of the first cylinder, telescopic rod, sealing sleeve, sealing plate, mesh groove, suction connecting pipe, handle, drive box, base, conveying frame, conveyor belt, and second cylinder, ensures that the distance between each pair of the six extension pipes is equal during use, providing comprehensive suction coverage. The first cylinder's activation drives the telescopic rod's extension and retraction. The sealing sleeve does not affect the suction of the annular cavity while providing a seal. When the sealing plate is pulled out, the mesh groove can be removed, collecting debris. The suction connecting pipe connects to an external blower, providing suction power. The channel inside the drive box allows the drainage conduit to pass through, with one end secured by a clamp. The conveying frame corresponds to one end of the fixed pipe and has a certain length. The conveyor belt provides sufficient support while transporting the drainage conduit. The second cylinder drives the second clamping cover to fix the end of the drainage conduit passing through the channel inside the drive box, resulting in strong stability during cutting. Attached Figure Description
[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0030] Figure 1 This is a schematic diagram of the structure of this utility model;
[0031] Figure 2 This is a schematic diagram of the fixed tube structure of this utility model;
[0032] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;
[0033] Figure 4 This is a schematic diagram of the mesh channel structure of this utility model.
[0034] In the diagram, 1. Main shaft; 2. Fixed tube; 3. Support box; 4. Annular cavity; 5. Suction hole; 6. Corresponding hole; 7. Extension tube; 8. Collection hole; 9. Clearance groove; 10. Clamping cover; 11. First cylinder; 12. Telescopic rod; 13. Sealing sleeve; 14. Sealing plate; 15. Mesh groove; 16. Suction connection tube; 17. Handle; 18. Drive box; 19. Base; 20. Conveying frame; 21. Conveying belt; 22. Second cylinder. Detailed Implementation
[0035] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0036] Reference Figure 1-4An automatic rotary cutting device for drainage tubes includes a main shaft 1, with a cutting blade inside the main shaft 1. A fixed tube 2 is provided at one end of the main shaft 1, and a support box 3 is fixedly connected to the bottom of the fixed tube 2. An annular cavity 4 is provided inside the fixed tube 2. A suction hole 5 is provided at the top of the support box 3, and a corresponding hole 6 is provided at the bottom of the fixed tube 2. An extension tube 7 is fixedly connected to one end of the fixed tube 2, and a collection hole 8 is provided on the outer surface of the extension tube 7. An avoidance groove 9 is provided on the inner wall of the fixed tube 2, and a clamping cover 10 is engaged with the inner wall of the avoidance groove 9. When in use, the operator passes the drainage tube through the inside of the fixed tube 2, thereby introducing it into the main shaft 1. The position to be cut corresponds to the cutting blade. After the cutting length is adjusted, the two clamping covers 10 move out of the avoidance groove. The inner wall of groove 9 extends out, thus clamping and fixing the outer surface of the drainage tube. The fixed part is close to the cutting point of the main shaft 1. During cutting, the main shaft 1 rotates at high speed, driving the cutting blade to cut, thereby making the cut surface of the drainage tube smoother and preventing deformation at the cut. At the same time, a certain negative pressure is generated inside the support box 3, which promotes suction from the suction hole 5. The suction hole 5 and the corresponding hole 6 are connected, creating a negative pressure inside the annular cavity 4. The extension tube 7 is close to the main shaft 1 and does not affect the rotation of the main shaft 1. The collection hole 8 is close to the cut, so it can clean and collect debris in time, preventing debris from remaining at the cut. There are six extension tubes 7, which are arranged in a ring array at one end of the fixed tube 2. The distance between each pair of the six extension tubes 7 is the same, and the suction range is wide. The enclosure is fully covered. A first cylinder 11 is fixedly connected to the outer surface of the fixed tube 2. A telescopic rod 12 is fixedly connected to the output end of the first cylinder 11. When the first cylinder 11 is activated, it drives the telescopic rod 12 to extend or retract. A sealing sleeve 13 is fixedly connected to the inner wall of the annular cavity 4. The telescopic rod 12 passes through the sealing sleeve 13 and is fixedly connected to the clamping cover 10. The sealing sleeve 13 does not affect the suction of the annular cavity 4 and provides a seal. A sealing plate 14 is snapped onto one side of the support box 3. A mesh groove 15 is fixedly connected to one end of the sealing plate 14. When the sealing plate 14 is pulled out, the mesh groove 15 can be pulled out. The mesh groove 15 collects debris. A suction connecting pipe 16 is fixedly connected to the other side of the support box 3. A handle 17 is fixedly connected to the outer surface of the sealing plate 14. The suction connecting pipe 16... Connected to an external induced draft fan to provide suction power, a drive box 18 is provided on one side of the main shaft 1. The drive box 18 has an internal channel through which the drainage conduit can pass. One end of the conduit is also fixed with a clamp. A base 19 is fixedly connected to the bottom of the drive box 18, and a conveyor frame 20 is fixedly connected to the top of the base 19. The conveyor frame 20 corresponds to one end of the fixed pipe 2 and has a certain length. Two conveyor belts 21 are driven to the inner wall of the conveyor frame 20. The conveyor belts 21 provide sufficient support while transporting the drainage conduit. Second cylinders 22 are fixedly connected to both sides of the drive box 18, and second clamping covers are fixedly connected to the output ends of the second cylinders 22.The second cylinder 22 drives the second clamping cover to fix one end of the drainage tube passing through the channel inside the drive box 18, providing strong stability during cutting.
[0037] In this invention, the coordinated arrangement of the main shaft 1, fixed tube 2, support box 3, annular cavity 4, suction hole 5, corresponding hole 6, extension tube 7, collection hole 8, clearance groove 9, and clamping cover 10 allows the device to be used effectively. When the operator inserts the drainage tube through the fixed tube 2, it is then introduced into the main shaft 1. The cutting position corresponds to the cutting blade. After adjusting the cutting length, the two clamping covers 10 extend from the inner wall of the clearance groove 9, clamping and fixing the outer surface of the drainage tube. The fixed part is close to the cutting point of the main shaft 1. During cutting, the high-speed rotation of the main shaft 1 drives the cutting blade to cut, resulting in a smoother cut surface for the drainage tube and preventing deformation at the cut. Simultaneously, a certain negative pressure is generated inside the support box 3, promoting suction from the suction hole 5. The connection between the suction hole 5 and the corresponding hole 6 creates negative pressure inside the annular cavity 4. The extension tube 7 is close to the main shaft 1 and does not affect its rotation. The collection hole 8 is close to the cut, allowing for timely cleaning and collection of debris, preventing debris residue at the cut. The arrangement of cylinder 11, telescopic rod 12, sealing sleeve 13, sealing plate 14, mesh trough 15, suction connecting pipe 16, handle 17, drive box 18, base 19, conveying frame 20, conveyor belt 21, and the coordination between the first cylinder 22 and the second cylinder ensures that the distance between each pair of the six extension pipes 7 is equal during use, providing comprehensive suction coverage. When the first cylinder 11 is activated, it drives the telescopic rod 12 to extend and retract. The sealing sleeve 13 does not affect the suction of the annular cavity 4 while providing a seal. When the sealing plate 14 is pulled out, it can cover the mesh trough. 15 is pulled out, the mesh trough 15 collects debris, the suction connecting pipe 16 is connected to the external blower to provide suction power, the channel inside the drive box 18 allows the drainage tube to pass through, and the end that passes through is also fixed by a clamp, the conveying frame 20 corresponds to one end of the fixed pipe 2, the conveying frame 20 has a certain length, the conveyor belt 21 conveys the drainage tube while providing sufficient support, the second cylinder 22 drives the second clamping cover to fix the end of the drainage tube that passes through the channel inside the drive box 18, which has strong stability during cutting.
[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An automatic rotary cutting device for drainage catheters, comprising a main shaft (1), characterized in that: The spindle (1) is equipped with a cutting blade inside. A fixed tube (2) is provided at one end of the spindle (1). A support box (3) is fixedly connected to the bottom of the fixed tube (2). An annular cavity (4) is left inside the fixed tube (2). A suction hole (5) is opened at the top of the support box (3). A corresponding hole (6) is opened at the bottom of the fixed tube (2). An extension tube (7) is fixedly connected to one end of the fixed tube (2). A collection hole (8) is opened on the outer surface of the extension tube (7). A clearance groove (9) is opened on the inner wall of the fixed tube (2). A clamping cover (10) is snapped into the inner wall of the clearance groove (9).
2. The automatic rotating cutting device of drainage catheter according to claim 1, characterized in that: The number of the extension tubes (7) is six, and the six extension tubes (7) are arranged in a ring array at one end of the fixed tube (2).
3. The automatic rotating cutting device of drainage catheter according to claim 1, characterized in that: The outer surface of the fixed tube (2) is fixedly connected to a first cylinder (11), and the output end of the first cylinder (11) is fixedly connected to a telescopic rod (12).
4. The automatic rotating cutting device of a drainage catheter according to claim 3, characterized in that: The inner wall of the annular cavity (4) is fixedly connected to a sealing sleeve (13), and the telescopic rod (12) passes through the sealing sleeve (13) and is fixedly connected to the clamping cover (10).
5. The automatic rotating cutting device of a drainage catheter according to claim 1, characterized in that: A sealing plate (14) is snapped onto one side of the support box (3), and a mesh groove (15) is fixedly connected to one end of the sealing plate (14).
6. A device for automatic rotation and cutting of a drainage catheter according to claim 5, characterized in that: A suction connection tube (16) is fixedly connected to the other side of the support box (3), and a handle (17) is fixedly connected to the outer surface of the sealing plate (14).
7. The automatic rotary cutting device for drainage catheters according to claim 1, characterized in that: A drive box (18) is provided on one side of the main shaft (1), and a channel is left inside the drive box (18).
8. The automatic rotary cutting device for drainage catheters according to claim 7, characterized in that: The bottom of the drive box (18) is fixedly connected to a base (19), and the top of the base (19) is fixedly connected to a conveyor frame (20).
9. The automatic rotating cutting device of a drainage catheter according to claim 8, characterized in that: The inner wall of the conveyor frame (20) is connected to a conveyor belt (21), and there are two conveyor belts (21).
10. The automatic rotating cutting device of a drainage catheter according to claim 7, characterized in that: The drive box (18) is fixedly connected to two sides of a second cylinder (22), and the output end of the second cylinder (22) is fixedly connected to a second clamping cover.