Cutting mechanism for hemostatic patch
The cutting mechanism driven by servo motors and permanent magnets enables rapid replacement of the hemostatic patch blades, solving the problem of cumbersome blade mold replacement in existing technologies and improving production efficiency and equipment lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI MED PUREST MEDICAL TECH CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-01
AI Technical Summary
Existing bandage cutting mechanisms require cumbersome disassembly and assembly with tools when changing blade molds of different specifications, resulting in low production efficiency.
The servo motor drives the slider on the guide rail to move, and the lifting mechanism and permanent magnet adsorption are used to achieve quick locking and replacement of the cutting blade. The cutting pressure is buffered by spring bolts, which simplifies the blade replacement process.
It significantly shortens blade replacement time, improves cutting accuracy and production efficiency, reduces maintenance costs, and extends the service life of the equipment.
Smart Images

Figure CN224183273U_ABST
Abstract
Description
A cutting mechanism for hemostatic patches Technical Field
[0001] This utility model relates to the technical field of hemostatic patch production equipment, specifically a hemostatic patch cutting mechanism. Background Technology
[0002] In the production process of hemostatic patches, the cutting process is one of the key steps, which requires the use of blade molds to precisely cut the hemostatic patch material. In existing hemostatic patch cutting mechanisms, the blade molds are usually fixedly installed on the equipment. When it is necessary to change to different specifications of blade molds to adapt to the production of hemostatic patches of different sizes or shapes, it is often necessary to use tools for cumbersome disassembly and installation operations. The replacement process is time-consuming and affects production efficiency. Therefore, we propose a hemostatic patch cutting mechanism. Summary of the Invention
[0003] The purpose of this utility model is to provide a cutting mechanism for hemostatic patches, so as to solve the problem mentioned in the background art that when it is necessary to change the blade mold of different specifications to adapt to the production of hemostatic patches of different sizes or shapes, it is often necessary to use tools for cumbersome disassembly and installation operations, the replacement process is time-consuming, and the production efficiency is affected.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a cutting mechanism for a hemostatic patch, comprising a platform with two guide rails above it, a slider slidably connected to one end of each guide rail, a limit block fixedly connected to one end of each guide rail located on one side of the slider, a servo motor fixedly connected to the end of each guide rail away from the slider, and a button on one side of the servo motor; a support frame fixedly connected above the two sliders; a lifting mechanism comprising a lifting mechanism and a fixed guide rail, the lifting mechanism being motor driven and located on one side of the support frame; and a blade changing mechanism comprising a cutting blade and a blade holder, the cutting blade being connected by a pin and pin hole riveting, and the blade changing mechanism being installed below the lifting mechanism.
[0005] A distance measuring sensor is fixedly connected to the bottom of the support frame.
[0006] The lifting mechanism includes a motor located above the support frame, which is fixedly connected to the support frame. Slide plates are provided on both sides of the lifting machine and are slidably connected to fixed guide rails.
[0007] The elevator has a support rod fixedly connected to the end away from the fixed guide rail, and two fixed bases are fixedly connected to both ends of the support rod by bolts.
[0008] The fixed base is fixedly connected to the blade holder by spring bolts. The blade holder is U-shaped and has a positioning pin hole on its inner surface. A permanent magnet is embedded inside the blade holder. Positioning pins are fixedly connected to both ends of the cutting blade. The positioning pins and positioning pin holes are the same size.
[0009] The cutting blade has a cutting opening on its surface.
[0010] A controller is fixedly connected to one side of the platform.
[0011] This utility model has at least the following beneficial effects: The bandage cutting mechanism is driven by a servo motor to move the slider on the guide rail laterally, which drives the support frame and lifting mechanism to be precisely positioned. After starting, the lifting machine presses down vertically along the fixed guide rail. The U-shaped blade holder is attracted by a permanent magnet and quickly locks the cutting blade with the positioning pin. The spring bolt buffers the cutting pressure to avoid material damage. When the blade is replaced, the old blade can be separated by simply pulling out the positioning pin. The new blade is automatically calibrated by magnetic positioning, which greatly shortens the downtime. This mechanism has the advantages of high-precision cutting and quick blade replacement, which not only ensures that the edge of the bandage is neat and burr-free, but also reduces the maintenance cost of the device. The spring buffer structure and the limit block provide double protection to effectively extend the service life of the equipment. Attached Figure Description
[0012] Figure 1 is a schematic diagram of the overall structure of this utility model;
[0013] Figure 2 is a front view of the structure of this utility model;
[0014] Figure 3 is a top view of the structure of this utility model;
[0015] Figure 4 is a schematic diagram of the cross-sectional structure at point B in Figure 3;
[0016] Figure 5 is a magnified structural diagram of point A in Figure 4.
[0017] In the diagram: 1. Platform; 11. Guide rail; 12. Slider; 13. Limit block; 14. Servo motor; 15. Button; 2. Support frame; 21. Distance sensor; 3. Lifting mechanism; 31. Lifting machine; 32. Fixed slide rail; 33. Motor; 4. Blade changing mechanism; 41. Blade holder; 42. Cutting blade; 43. Support rod; 44. Fixed base; 45. Spring bolt; 46. Positioning pin hole; 47. Positioning pin; 48. Cutting opening; 49. Controller. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Please refer to Figures 1-5. This utility model provides a technical solution: a cutting mechanism for a hemostatic patch, including a platform 1. Two guide rails 11 are arranged on the upper part of the platform 1. A slider 12 is slidably connected to one end of each of the two guide rails 11. A limit block 13 is fixedly connected to one end of the guide rail 11. The limit block 13 is located on one side of the slider 12. A servo motor 14 is fixedly connected to the end of the guide rail 11 away from the slider 12. A button 15 is arranged on one side of the servo motor 14.
[0020] Support frame 2 is fixedly connected above the two sliders 12;
[0021] The lifting mechanism 3 includes a lifting platform 31 and a fixed guide rail 11. The lifting mechanism 3 is driven by a motor 33 and is located on one side of the support frame 2.
[0022] The blade replacement mechanism 4 includes a cutting blade 42 and a blade holder 41. The cutting blade 42 is connected by a pin and a pin hole riveting method. The blade replacement mechanism 4 is installed below the lifting mechanism 3.
[0023] A distance measuring sensor 21 is fixedly connected to the bottom of the support frame 2.
[0024] The lifting mechanism 3 includes a motor 33 located above the support frame 2. The motor 33 is fixedly connected to the support frame 2. Slide plates are provided on both sides of the lifting machine 31 and are slidably connected to the fixed guide rail 11.
[0025] The lifting platform 31 is fixedly connected to a support rod 43 at one end away from the fixed guide rail 11. The two ends of the support rod 43 are fixedly connected to two fixed bases 44 by bolts.
[0026] The inner side of the fixed base 44 is fixedly connected to the blade holder 41 by spring bolts 45. The blade holder 41 is U-shaped. The inner surface of the blade holder 41 is provided with positioning pin holes 46. A permanent magnet is embedded inside the blade holder 41. Positioning pins 47 are fixedly connected to both ends of the cutting blade 42. The positioning pins 47 and the positioning pin holes 46 are the same size.
[0027] The cutting blade 42 has a cutting opening 48 on its surface.
[0028] A controller 49 is fixedly connected to one side of platform 1.
[0029] During operation, the operator first lays the hemostatic patch roll flat on platform 1, sets the cutting parameters through the controller, and when the equipment is started, the distance sensor 21 (installed below the support frame 2) emits a laser vertically downward to scan the distance between the two ends of the cutting blade 42, accurately measures the actual width of the blade, and transmits the data to the controller in real time. The controller automatically calculates the stroke that the slider 12 needs to move laterally on the guide rail 11 based on the blade width and the size of the hemostatic patch, and then drives the servo motor 14 to move the slider 12 along the guide rail 11 to the target position. The limit block 13 ensures that the movement range of the slider 12 is accurate and controllable.
[0030] At this time, the motor 33 of the lifting mechanism 3 starts, pushing the slide plate vertically down along the fixed guide rail 11. The permanent magnet in the U-shaped blade holder 41 attracts the cutting blade 42. At the same time, the positioning pin 47 is embedded in the pin hole of the blade holder 41 to complete the rigid locking. The spring bolt 45 is compressed to buffer the downward pressure. When changing the blade, only the pin needs to be manually pulled out. The permanent magnet automatically detaches from the old blade. After the new blade is placed in the blade holder 41, it is pre-positioned by magnetic attraction. The distance sensor 21 recalibrates the blade width and adjusts the stroke of the slider 12. The whole process does not require manual measurement, and the blade changing time is shortened. This design can intelligently control the cutting trajectory by dynamically sensing the blade size, which can avoid leaving blank or overcutting the material edge and can adapt to multiple specifications of blades, significantly improving the level of production flexibility.
[0031] This mechanism is not only applicable to the cutting of bandages, but also to some industrial packaging materials, such as the cutting of packaging films or aluminum foil. By stacking the film or aluminum foil and changing the cutting blade 42 to the corresponding shape, a roll of material can be cut into strips of various specifications at the same time, significantly improving the cutting efficiency.
[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0033] 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. A cutting mechanism for a bandage, comprising: Platform (1), with two guide rails (11) on top of the platform (1), and sliders (12) slidably connected to one end of each guide rail (11). A limit block (13) is fixedly connected to one end of each guide rail (11), and the limit block (13) is located on one side of the slider (12). A servo motor (14) is fixedly connected to the end of the guide rail (11) away from the slider (12), and a button (15) is provided on one side of the servo motor (14); support frame (2), which is fixedly connected to the two guide rails (11). Above the slider (12); characterized in that it further includes: a lifting mechanism (3), the lifting mechanism (3) including a lift (31) and a fixed guide rail (11), the lifting mechanism (3) being driven by a motor (33) and set on one side of the support frame (2); a blade replacement mechanism (4), the blade replacement mechanism (4) including a cutting blade (42) and a blade holder (41), the cutting blade (42) being connected by a pin and a pin hole riveting method, the blade replacement mechanism (4) being installed below the lifting mechanism (3).
2. The cutting mechanism for the hemostatic patch according to claim 1, characterized in that: A distance measuring sensor (21) is fixedly connected to the bottom of the support frame (2).
3. The cutting mechanism for the hemostatic patch according to claim 2, characterized in that: The lifting mechanism (3) includes a motor (33) located above the support frame (2), the motor (33) being fixedly connected to the support frame (2), and the lifting machine (31) having sliding plates on both sides that are slidably connected to the fixed guide rail (11).
4. The cutting mechanism for the hemostatic patch according to claim 3, characterized in that: The elevator (31) is fixedly connected to a support rod (43) at one end away from the fixed guide rail (11), and the two ends of the support rod (43) are fixedly connected to two fixed bases (44) by bolts.
5. The cutting mechanism for the hemostatic patch according to claim 4, characterized in that: The inner side of the fixed base (44) is fixedly connected to the blade holder (41) by spring bolts (45). The blade holder (41) is U-shaped. The inner surface of the blade holder (41) is provided with positioning pin holes (46). A permanent magnet is embedded inside the blade holder (41). Positioning pins (47) are fixedly connected to both ends of the cutting blade (42). The positioning pins (47) and positioning pin holes (46) are the same size.
6. The cutting mechanism for the hemostatic patch according to claim 5, characterized in that: The cutting blade (42) has a cutting opening (48) on its surface.
7. The cutting mechanism for the hemostatic patch according to claim 6, characterized in that: A controller (49) is fixedly connected to one side of the platform (1).