Medical spring sleeve automatic forming device

Abstract

This invention relates to the field of medical spring sheath forming and processing technology, and discloses an automatic forming device for medical spring sheaths. It includes an extruder for melting and extruding sheath raw materials, with a sheath forming mold fixedly installed at the extrusion port of the extruder for forming the molten raw materials into a flexible tube. A spiral forming mechanism for bending and shaping the flexible tube into a spiral shape is installed on the other side of the sheath forming mold. The sheath forming mold includes a material guiding mold. This invention improves the processing efficiency of medical spring sheaths by directly spiral-shaping the flexible tube after production and by cyclically processing and shaping it. This reduces exposure time, minimizes bacterial contamination, and improves the safety of medical spring sheaths. Simultaneously, while the flexible tube is being wound to form the medical spring sheath, any viruses or bacteria that may be present on the tube are disinfected, further enhancing the hygiene and safety of the produced medical spring sheaths.

Description

Technical Field

[0001] This invention relates to the field of medical spring sleeve forming and processing technology, and more specifically, to an automatic medical spring sleeve forming device. Background Technology

[0002] Medical spring cannulas are flexible tubular devices, typically made of materials such as polyurethane or silicone. They are designed to deliver liquids, gases, or medications to assist doctors in clinical treatment. They have the advantages of small size and long length. The spring-like structure makes medical spring cannulas easy to store and organize, and their good elasticity allows them to be easily stretched and used.

[0003] Currently, the manufacturing processes for medical spring sleeves are mostly divided into two types: one is injection molding using injection molds, and the other is first processed into a catheter and then bent and shaped again to form a medical spring sleeve.

[0004] Both of the above commonly used manufacturing methods involve lengthy processes and time consumption for medical spring sleeves, resulting in low production efficiency. Furthermore, the step-by-step and batch-based production method can easily lead to the contamination of bacteria and other harmful substances during catheter turnover, affecting the hygiene and safety of medical spring sleeves. Summary of the Invention

[0005] To address the problems existing in the prior art, the purpose of this invention is to provide an automatic forming device for medical spring sleeves, which improves the production and processing efficiency of medical spring sleeves, avoids subsequent secondary processing and shaping work, and facilitates packaging by directly shaping after production.

[0006] To achieve the above objectives, the present invention adopts the following technical solution;

[0007] An automatic forming device for medical spring sleeves includes an extruder for melting and extruding sleeve raw materials. A sleeve forming mold for forming the molten raw materials into a flexible tube is fixedly installed at the extrusion port of the extruder. A spiral forming mechanism for bending and shaping the flexible tube into a spiral shape is installed on the other side of the sleeve forming mold. The sleeve forming mold includes a guide mold. The guide mold has a guide cavity that communicates with the extrusion port of the extruder. A hollow mold is fixedly installed inside the guide cavity. A shaping tube is integrally formed on the right side of the guide mold. The right end of the hollow mold extends to the inside of the shaping tube.

[0008] The spiral forming mechanism includes a heating and shaping box, inside which a conveyor belt is movably installed. A circulating cavity, connected end-to-end, is opened on the inner side of the heating and shaping box. One side of the conveyor belt extends into the circulating cavity and is integrally formed with a limit block. Several winding rollers are laid inside the circulating cavity. A hot air circulation mechanism is fixedly installed on the heating and shaping box. A material ejection electric push rod is fixedly installed at the bottom right side of the heating and shaping box, with its output end extending into the circulating cavity. A winding motor is fixedly installed at the top right side of the heating and shaping box. A transmission wheel located inside the heating and shaping box is fixedly installed on the output shaft of the winding motor. The bottom of the transmission wheel contacts the adjacent winding roller. A drive motor is installed on the heating and shaping box, and its output shaft meshes with the conveyor belt via gears to drive the conveyor belt within the heating and shaping box.

[0009] As a further description of the above technical solution:

[0010] It also includes a cooling and shaping mechanism for cooling the formed hose, the cooling and shaping mechanism comprising a transfer table installed between the sleeve forming mold and the spiral forming mechanism, a cooling water conduit fixedly installed on the top of the transfer table, nozzles arranged at equal intervals fixedly installed on the bottom of the cooling water conduit, a transfer motor fixedly installed on the top of the transfer table, and a transfer guide wheel fixedly installed on the output shaft of the transfer motor.

[0011] As a further description of the above technical solution:

[0012] The hot air circulation mechanism includes a hot air circulation box fixedly installed on the heating and shaping box. A heating rod and a circulating fan are fixedly installed inside the hot air circulation box. The inside of the hot air circulation box is connected to the inside of the circulation chamber, and a drying filter plate is installed at the connection between the hot air circulation box and the circulation chamber.

[0013] As a further description of the above technical solution:

[0014] The winding roller is located between two adjacent limiting blocks, and the outer wall of the winding roller is in smooth contact with the limiting blocks.

[0015] As a further description of the above technical solution:

[0016] The winding roller consists of a winding rod and a contact head integrally formed on the winding rod. The contact head has a hose end insertion port, the winding rod has a guide groove, and the contact head has an arc-shaped top outlet.

[0017] As a further description of the above technical solution:

[0018] Several limiting wheels are rotatably installed on the side of the circulation chamber away from the conveyor belt, and uniformly distributed UVC lamp strips are fixedly installed on the limiting wheels.

[0019] As a further description of the above technical solution:

[0020] The bottom left side of the heating and shaping box has a discharge port.

[0021] As a further description of the above technical solution:

[0022] The interior of the heating and shaping box is divided into an upper heating section and a lower cooling and shaping section. The circulation chamber is divided into a forming section for extending the heating and shaping path and a recycling section for recycling the winding roller.

[0023] Compared with the prior art, the advantages of this invention are:

[0024] (1) In this solution, the tubing is directly spiral-shaped after production and cyclically processed and shaped, which improves the processing efficiency of medical spring sleeves, avoids subsequent secondary processing and shaping work, and facilitates packaging after direct shaping after production, reduces exposure time, reduces bacterial contamination, and improves the safety of medical spring sleeves.

[0025] (2) In this scheme, while the hose is wound to form a medical spring sleeve, the UVC lamp strip is used to disinfect the viruses and bacteria that may be attached to the hose due to cooling water, air and other reasons, thereby improving the hygiene and safety of the produced medical spring sleeve. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the present invention;

[0027] Figure 2 This is a cross-sectional view of the sleeve forming mold of the present invention;

[0028] Figure 3 This is a schematic diagram of the right-side cross-sectional structure of the heating and shaping box of the present invention;

[0029] Figure 4 This is a schematic diagram of the structure of the winding roller of the present invention;

[0030] Figure 5 This is a schematic diagram of the left side of the heating and shaping box of the present invention;

[0031] Figure 6 This is a schematic diagram of the initial insertion of the flexible hose into the winding roller of the present invention;

[0032] Figure 7 This is a schematic diagram of the structure of the hose wound around the winding roller according to the present invention;

[0033] Figure 8 This is a schematic diagram of the connection structure between the limiting wheel and the UVC lamp strip of the present invention.

[0034] Explanation of the labels in the diagram:

[0035] 1. Extruder; 2. Sleeve forming die; 21. Feeding die; 22. Feeding cavity; 23. Hollow die; 24. Shaping tube; 3. Spiral forming mechanism; 31. Heating and shaping box; 32. Conveyor belt; 33. Circulation cavity; 34. Limiting block; 35. Winding roller; 351. Winding rod; 352. Contact head; 353. Hose end insertion port; 354. Guide groove; 355. Arc-shaped top outlet; 36. Hot air circulation. 361. Ring mechanism; 362. Hot air circulation box; 363. Heating rod; 364. Circulating fan; 365. Drying filter plate; 366. Unloading electric push rod; 37. Winding motor; 38. Transmission wheel; 39. Drive motor; 310. Restricting wheel; 311. UVC lamp strip; 312. Discharge port; 4. Cooling and shaping mechanism; 41. Conveyor table; 42. Cooling water conduit; 43. Nozzle; 44. Conveyor motor; 45. Conveyor guide wheel. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention;

[0037] Please see Figure 1-8 The present invention provides Embodiment 1:

[0038] An automatic forming device for medical spring sleeves includes an extruder 1 for melting and extruding sleeve raw materials. A sleeve forming mold 2 for forming the molten raw materials into a flexible tube is fixedly installed at the extrusion port of the extruder 1. A spiral forming mechanism 3 for bending and shaping the flexible tube into a spiral shape is installed on the other side of the sleeve forming mold 2. The sleeve forming mold 2 includes a guide mold 21. The guide mold 21 has a guide cavity 22 that communicates with the extrusion port of the extruder 1. A hollow mold 23 is fixedly installed inside the guide cavity 22. A shaping tube 24 is integrally formed on the right side of the guide mold 21. The right end of the hollow mold 23 extends to the inside of the shaping tube 24.

[0039] First, the raw material for the medical spring sleeve is processed and melted by the extruder 1, and the molten raw material is introduced into the inside of the guide cavity 22 in the sleeve forming mold 2. The raw material is extruded and formed through the gap between the guide mold 21 and the hollow mold 23. At the same time, the structure of the hose is stabilized by the shaping tube 24 and the hollow mold 23 and then discharged.

[0040] The spiral forming mechanism 3 includes a heating and shaping box 31. A conveyor belt 32 is movably installed inside the heating and shaping box 31. A circulation chamber 33, connected end-to-end, is opened on the inner side of the heating and shaping box 31. One side of the conveyor belt 32 extends into the circulation chamber 33 and is integrally formed with a limit block 34. Several winding rollers 35 are laid inside the circulation chamber 33. A hot air circulation mechanism 36 is fixedly installed on the heating and shaping box 31. A material ejection electric push rod 37 is fixedly installed at the bottom right side of the heating and shaping box 31. The output end of the material ejection electric push rod 37 extends into the circulation chamber 33. A winding motor 38 is fixedly installed on the top right side of the heat setting box 31. The output shaft of the winding motor 38 is fixedly installed with a transmission wheel 39 located inside the heat setting box 31. The bottom of the transmission wheel 39 contacts the adjacent winding roller 35. A drive motor 310 is installed on the heat setting box 31. The output shaft of the drive motor 310 meshes with the conveyor belt 32 through gears to drive the conveyor belt 32 to move inside the heat setting box 31. A cutting knife is slidably installed on the top left side of the heat setting box 31. A discharge port 313 is opened at the bottom left side of the heat setting box 31.

[0041] The generated flexible tube is guided into the heating and shaping chamber 31, with one end inserted into the winding roller 35. The winding motor 38 is energized, driving the drive wheel 39 to rotate. Since the bottom of the drive wheel 39 contacts the winding roller 35, it in turn drives the winding roller 35 to rotate. After one end of the flexible tube is inserted and fixed, the rotation of the winding roller 35 and the input of the flexible tube cause the tube to wind around the winding roller 35 in a spiral shape. When the winding roller 35 has rotated a certain number of times, reaching the size of a medical spring sleeve, the tube is then driven by the drive wheel on the heating and shaping chamber 31... The hydraulic rod drives the cutting blade to cut the hose located on the outside. Then, the winding roller 35 rotates a certain number of times to completely wind up the remaining part. The drive motor 310 works to drive the conveyor belt 32 to move, so that the wound hose moves in the circulation chamber 33. At the same time, the hot air circulation mechanism 36 continuously inputs hot air into the circulation chamber 33 to reheat the hose until it is shaped into a medical spring sleeve. Then, the medical spring sleeve wound on the winding roller 35 is discharged from the discharge port 313 by the unloading electric push rod 37.

[0042] This method allows for direct spiral shaping of the tubing after production, along with cyclic processing and shaping, improving the processing efficiency of medical spring sleeves and avoiding subsequent secondary shaping work. Furthermore, direct shaping after production facilitates packaging, reduces exposure time, minimizes bacterial contamination, and enhances the safety of medical spring sleeves.

[0043] The present invention also includes a cooling and shaping mechanism 4 for cooling the formed hose. The cooling and shaping mechanism 4 includes a transfer table 41 installed between the sleeve forming mold 2 and the spiral forming mechanism 3. A cooling water conduit 42 is fixedly installed on the top of the transfer table 41. A nozzle 43 arranged at equal intervals is fixedly installed on the bottom of the cooling water conduit 42. A transfer motor 44 is fixedly installed on the top of the transfer table 41. A transfer guide wheel 45 is fixedly installed on the output shaft of the transfer motor 44.

[0044] The cooling water pipe 42 on the transfer table 41 is connected to an external water source or a circulating water source. The nozzle 43 continuously cools the hose produced by the sleeve forming mold 2, further shaping the hose produced by the sleeve forming mold 2 to ensure the structural stability of the hose. At the same time, the transfer guide wheel 45 limits and guides the hose, making it easy to transport the formed hose to the interior of the heating and shaping box 31.

[0045] The hot air circulation mechanism 36 includes a hot air circulation box 361 fixedly installed on the heating and shaping box 31. A heating rod 362 and a circulating fan 363 are fixedly installed inside the hot air circulation box 361. The inside of the hot air circulation box 361 is connected to the inside of the circulation chamber 33, and a drying filter plate 364 is installed at the connection between the hot air circulation box 361 and the circulation chamber 33.

[0046] The air inside the hot air circulation box 361 is heated by the heating rod 362 to make the temperature meet the requirements of the secondary softening and shaping of the hose. Then, the hot air is introduced into the circulation chamber 33 by the circulation fan 363 to heat the hose, while the drying filter plate 364 collects the water vapor generated during the heating and shaping process.

[0047] Please see Figure 3 , 4 Based on Embodiment 1, the present invention also provides Embodiment 2: (6, 7, and 8)

[0048] The winding roller 35 is located between two adjacent limiting blocks 34, and the outer wall of the winding roller 35 is in smooth contact with the limiting blocks 34. The winding roller 35 is composed of a winding rod 351 and a contact head 352 integrally formed on the winding rod 351. The contact head 352 is provided with a hose end insertion port 353, the winding rod 351 is provided with a guide groove 354, and the contact head 352 is provided with an arc-shaped top outlet 355.

[0049] The limiting block 34 can separate each winding roller 35 and limit the distance between two adjacent winding rollers 35 to ensure that there is no mutual interference during the heating and shaping process, thus ensuring the forming quality of the medical spring sleeve. The contact head 352 can facilitate contact with the transmission wheel 39 and prevent the winding roller 35 from being discharged with the discharge port 313 during the unloading process. The hose end insertion port 353 allows one end of the hose to pass through and be fixed, which is convenient for the hose to be wound. The guide groove 354 facilitates the hose to be guided into the heating and shaping box 31 and then guides the hose end to be inserted into the hose end insertion port 353. During the unloading process, the output end of the unloading electric push rod 37 is connected to the ejector block, which passes through the arc-shaped top outlet 355 to apply force to the medical spring sleeve, thereby pushing the medical spring sleeve out of the discharge port 313.

[0050] The interior of the heating and shaping box 31 is divided into an upper heating section and a lower cooling and shaping section. The circulation chamber 33 is divided into a forming section for extending the heating and shaping path and a recycling section for recycling the winding roller 35.

[0051] The interior of the heating and shaping box 31 is divided into an upper heating section and a lower cooling and shaping section. The circulation chamber 33 is divided into a forming section for extending the heating and shaping path and a recycling section for recycling the winding roller 35.

[0052] In this invention, a plurality of limiting wheels 311 are rotatably mounted on the side of the circulation chamber 33 away from the conveyor belt 32, and UVC lamp strips 312 are fixedly mounted on the limiting wheels 311.

[0053] While the tubing is wound to form a medical spring sleeve, a UVC lamp strip 312 is used to treat viruses and bacteria that may be attached to the tubing due to cooling water, air, etc. Because UVC ultraviolet light has a strong bactericidal effect, it can effectively kill bacteria, viruses, and fungi. It can destroy the DNA or RNA of microorganisms, thereby preventing their reproduction and growth, thus improving the hygiene and safety of the produced medical spring sleeve.

[0054] The above description represents a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. An automatic forming device for medical spring cannulas, comprising an extruder (1) for melting and extruding cannulas raw material, wherein a cannulas forming mold (2) for forming the molten raw material into a flexible tube is fixedly installed at the extrusion port of the extruder (1), and a spiral forming mechanism (3) for bending and shaping the flexible tube into a spiral shape is installed on the other side of the cannulas forming mold (2), characterized in that: The sleeve forming mold (2) includes a material guiding mold (21), the inside of the material guiding mold (21) is provided with a material guiding cavity (22) that communicates with the extrusion port of the extruder (1), a hollow mold (23) is fixedly installed inside the material guiding cavity (22), a shaping tube (24) is integrally formed on the right side of the material guiding mold (21), and the right end of the hollow mold (23) extends to the inside of the shaping tube (24); The spiral forming mechanism (3) includes a heating and shaping box (31). A conveyor belt (32) is movably installed inside the heating and shaping box (31). A circulation chamber (33) with its ends connected is opened on the inner side of the heating and shaping box (31). One side of the conveyor belt (32) extends to the circulation chamber (33) and is integrally formed with a limit block (34). Several winding rollers (35) are laid inside the circulation chamber (33). A hot air circulation mechanism (36) is fixedly installed on the heating and shaping box (31). A material ejection electric push rod (37) is fixedly installed at the bottom right side of the heating and shaping box (31). The output of the material ejection electric push rod (37) is... The end extends into the interior of the circulation chamber (33). A winding motor (38) is fixedly installed on the top right side of the heating and shaping box (31). A transmission wheel (39) located inside the heating and shaping box (31) is fixedly installed on the output shaft of the winding motor (38). The bottom of the transmission wheel (39) contacts the adjacent winding roller (35). A drive motor (310) is installed on the heating and shaping box (31). The output shaft of the drive motor (310) meshes with the conveyor belt (32) through gears to drive the conveyor belt (32) to drive inside the heating and shaping box (31). A cutting knife is slidably installed on the top left side of the heating and shaping box (31). The winding roller (35) consists of a winding rod (351) and a contact head (352) integrally formed on the winding rod (351). The contact head (352) is provided with a hose end insertion port (353), the winding rod (351) is provided with a guide groove (354), and the contact head (352) is provided with an arc-shaped top outlet (355). A plurality of limiting wheels (311) are rotatably mounted on the side of the circulation chamber (33) away from the conveyor belt (32), and UVC lamp strips (312) are fixedly mounted on the limiting wheels (311). The interior of the heating and shaping box (31) is divided into an upper heating section and a lower cooling and shaping section. The circulation chamber (33) is divided into a forming section for extending the heating and shaping path and a recycling section for recycling the winding roller (35).

2. The automatic forming device for medical spring sleeves according to claim 1, characterized in that: It also includes a cooling and shaping mechanism (4) for cooling the formed hose, the cooling and shaping mechanism (4) including a transfer table (41) installed between the sleeve forming mold (2) and the spiral forming mechanism (3), a cooling water conduit (42) is fixedly installed on the top of the transfer table (41), a nozzle (43) arranged at equal intervals is fixedly installed on the bottom of the cooling water conduit (42), a transfer motor (44) is fixedly installed on the top of the transfer table (41), and a transfer guide wheel (45) is fixedly installed on the output shaft of the transfer motor (44).

3. The automatic forming device for medical spring sleeves according to claim 1, characterized in that: The hot air circulation mechanism (36) includes a hot air circulation box (361) fixedly installed on the heating and shaping box (31). A heating rod (362) and a circulating fan (363) are fixedly installed inside the hot air circulation box (361). The inside of the hot air circulation box (361) is connected to the inside of the circulation chamber (33), and a drying filter plate (364) is installed at the connection between the hot air circulation box (361) and the circulation chamber (33).

4. The automatic forming device for medical spring sleeves according to claim 1, characterized in that: The winding roller (35) is located between two adjacent limiting blocks (34), and the outer wall of the winding roller (35) is in smooth contact with the limiting blocks (34).

5. The automatic forming device for medical spring sleeves according to claim 1, characterized in that: The bottom left side of the heating and shaping box (31) has a discharge port (313).

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