Medical antibacterial polyurethane film producing and forming device

Abstract

The invention discloses a medical antibacterial polyurethane film production forming device which comprises a base, in the using process, a heat preservation storage assembly, an extrusion mixing assembly, a forming assembly and a winding assembly are integrated on the base, the integrated operation of raw material storage, mixing, extrusion, forming and winding is achieved, the production process is greatly shortened, the production efficiency is improved, and the production cost is reduced. The production efficiency is improved, all the assemblies are tightly connected, and loss and pollution in the raw material transferring process are reduced; a heating sleeve in the heat preservation storage assembly can maintain the temperature of raw materials stable, inert gas is introduced into a gas guide pipe to prevent the raw materials from being oxidized, and the stirring assembly with a scraping arm frame is matched, so that raw material mixing uniformity can be guaranteed, raw material residues can be avoided, uniform distribution of antibacterial components of the film is guaranteed, and the product quality stability is improved.

Description

Technical Field

[0001] This invention relates to the field of medical film production equipment technology, specifically to a medical antibacterial polyurethane film production and molding device. Background Technology

[0002] Medical polyurethane films are widely used in wound dressings, medical protective equipment and other fields due to their good biocompatibility, breathability and mechanical properties. In order to meet medical hygiene requirements, the films must have reliable antibacterial properties.

[0003] The existing production process for medical antibacterial polyurethane films suffers from several problems, including susceptibility of raw material storage to environmental influences, uneven mixing leading to unbalanced distribution of antibacterial components, and poor coordination between extrusion molding and winding processes. These issues not only affect the stability of film product quality but also result in low production efficiency. Furthermore, existing molding equipment struggles to flexibly adjust film thickness, exhibiting poor adaptability and failing to meet the diverse needs of different medical applications. Therefore, there is an urgent need for an integrated, efficient molding device for the production of medical antibacterial polyurethane films that can guarantee product quality. Summary of the Invention

[0004] The purpose of this invention is to provide a medical antibacterial polyurethane film production and molding apparatus to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a medical antibacterial polyurethane film production and molding device, comprising a base, wherein a heat preservation and storage component, an extrusion mixing component, a molding component and a winding component are sequentially arranged above the base, the heat preservation and storage component includes a mixing tank, a heating jacket and a gas guide pipe, the heating jacket is fitted outside the mixing tank, one end of the gas guide pipe is connected to an inert gas source and the other end extends to the bottom of the mixing tank, and a stirring component is arranged inside the mixing tank.

[0006] Preferably, the mixing tank is provided with a feeding pipe and an exhaust port at the top.

[0007] Preferably, the stirring assembly includes a stirring motor, a rotating shaft, stirring blades, and a scraper frame. The stirring motor is located at the top of the mixing tank. The output shaft of the stirring motor passes through the mixing tank and is connected to the rotating shaft. Stirring blades are provided on both sides of the rotating shaft. There are two scraper frames, which are respectively fixed on both sides of the rotating shaft. One end of each scraper frame is in contact with the inner wall of the mixing tank.

[0008] Preferably, the extrusion mixing assembly includes a screw extrusion box, an extrusion screw, and a drive motor. The screw extrusion box is connected to the bottom of the mixing tank. The extrusion screw is rotatably installed inside the screw extrusion box. The drive motor is located outside the screw extrusion box. The output shaft of the drive motor passes through the screw extrusion box and is connected to the extrusion screw.

[0009] Preferably, the molding assembly includes a molding frame, a fixed roller, a lifting frame, an adjusting roller, and an adjusting screw. The molding frame is disposed on the top of the base. The fixed roller is rotatably installed inside the molding frame. The lifting frame is slidably disposed inside the molding frame. The adjusting roller is rotatably installed inside the lifting frame. One end of the adjusting screw is threaded through the molding frame and connected to the lifting frame. The screw extrusion box outlet faces between the fixed roller and the adjusting roller.

[0010] Preferably, the molding frame has sliding grooves on both sides, and the lifting frame has sliders on both sides, with the sliders on both sides slidingly disposed in the sliding grooves.

[0011] Preferably, the winding assembly includes a winding frame, a winding roller, and a winding motor. The winding frame is disposed on the top of the base, the winding roller is rotatably mounted inside the winding frame, the winding motor is disposed outside the winding frame, and the output shaft of the winding motor passes through the winding frame and is connected to the winding roller.

[0012] Preferably, the thermal insulation storage component has support frames on both sides of its exterior, and the bottom of the support frames is fixed to the top of the base.

[0013] Preferably, the bottom of the extrusion mixing assembly is provided with a support base, and the bottom of the support base is fixed to the top of the base.

[0014] Preferably, a knob is provided on the top of the adjusting screw.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention integrates a thermal insulation storage component, an extrusion mixing component, a molding component, and a winding component onto a base, achieving integrated operation of raw material storage, mixing, extrusion, molding, and winding. This significantly shortens the production process, improves production efficiency, and ensures that the components are tightly connected, reducing losses and contamination during raw material transfer. The heating jacket in the thermal insulation storage component maintains a stable raw material temperature, and the air duct introduces inert gas to prevent raw material oxidation. Combined with the stirring component with a scraper frame, it ensures uniform mixing of raw materials and avoids raw material residue, ensuring uniform distribution of antibacterial components in the film and improving product quality stability.

[0016] 2. The forming component drives the lifting frame to move by adjusting the screw, realizing flexible adjustment of the distance between the adjusting roller and the fixed roller. It can adapt to the production needs of medical antibacterial polyurethane films of different thicknesses. The cooperation between the slide and the slider ensures the adjustment accuracy and further improves the film forming quality. The overall structure of the device is compact, the components are installed firmly, and the operation is convenient. It is suitable for large-scale production and has strong practicality and promotion value. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the overall device of the present invention; Figure 2 In this invention Figure 1 Another perspective view; Figure 3 This is a schematic diagram of the structure of the forming component and the winding component in this invention; Figure 4 This is a schematic diagram showing the location of the slide groove in this invention; Figure 5 This is a cross-sectional schematic diagram of the mixing tank, screw extrusion box, and heating jacket in this invention; Figure 6 This is a schematic diagram of the stirring assembly in this invention.

[0018] In the diagram: 1. Base; 2. Insulated storage assembly; 21. Mixing tank; 22. Heating jacket; 23. Air guide pipe; 3. Extrusion mixing assembly; 31. Screw extrusion box; 32. Extrusion screw; 33. Drive motor; 4. Molding assembly; 41. Molding frame; 411. Slide groove; 42. Fixed roller; 43. Lifting frame; 44. Adjusting roller; 45. Adjusting screw; 5. Rewinding assembly; 51. Rewinding frame; 52. Rewinding roller; 53. Rewinding motor; 6. Stirring assembly; 61. Stirring motor; 62. Rotating shaft; 63. Stirring blade; 64. Scraper frame; 7. Feeding pipe; 8. Exhaust port. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figure 1-6 The present invention provides a technical solution: Example: A medical antibacterial polyurethane film production and molding apparatus: A medical antibacterial polyurethane film production and molding device includes a base 1. A heat preservation and storage component 2, an extrusion mixing component 3, a molding component 4 and a winding component 5 are sequentially fixedly installed on the base 1. The heat preservation and storage component 2 is fixed to the base 1 through a support frame, and the extrusion mixing component 3 is fixed to the base 1 through a support base to ensure that each component is installed stably.

[0021] The heat-insulating storage assembly 2 includes a mixing tank 21, a heating jacket 22, and a gas guide pipe 23. The heating jacket 22 is fitted over the outside of the mixing tank 21. One end of the gas guide pipe 23 is connected to an inert gas source, and the other end extends to the bottom of the mixing tank 21. The top of the mixing tank 21 is provided with a feeding pipe 7 and an exhaust port 8. An agitator 6 is installed inside. The agitator 6 includes an agitator motor 61, a rotating shaft 62, agitator blades 63, and a scraper frame 64. The agitator motor 61 is fixed to the top of the mixing tank 21, and its output shaft passes through the mixing tank 21 and is connected to the rotating shaft 62. Agitator blades 63 are fixed on both sides of the rotating shaft 62. Two scraper frames 64 are fixed on both sides of the rotating shaft 62, and one end of the scraper frame 64 is attached to the inner wall of the mixing tank 21.

[0022] The extrusion mixing assembly 3 includes a screw extrusion box 31, an extrusion screw 32, and a drive motor 33. The screw extrusion box 31 is connected to the bottom of the mixing tank 21. The extrusion screw 32 is rotatably installed inside the screw extrusion box 31. The drive motor 33 is fixed outside the screw extrusion box 31, and its output shaft passes through the screw extrusion box 31 and is connected to the extrusion screw 32.

[0023] The molding assembly 4 includes a molding frame 41, a fixed roller 42, a lifting frame 43, an adjusting roller 44, and an adjusting screw 45. The molding frame 41 is fixed to the top of the base 1. The fixed roller 42 is rotatably installed inside the molding frame 41. The lifting frame 43 slides with the sliding groove 411 inside the molding frame 41 through sliders on both sides. The adjusting roller 44 is rotatably installed inside the lifting frame 43. One end of the adjusting screw 45 is threaded through the molding frame 41 and connected to the lifting frame 43. A knob is provided on the top. The discharge port of the screw extrusion box 31 faces between the fixed roller 42 and the adjusting roller 44.

[0024] The winding assembly 5 includes a winding frame 51, a winding roller 52, and a winding motor 53. The winding frame 51 is fixed to the top of the base 1, the winding roller 52 is rotatably mounted inside the winding frame 51, and the winding motor 53 is fixed to the outside of the winding frame 51. Its output shaft passes through the winding frame 51 and is connected to the winding roller 52.

[0025] Working principle: In use, polyurethane raw materials and antibacterial agents are added to the mixing tank 21 through the feeding pipe 7. The feeding pipe 7 is then closed. Inert gas is introduced into the mixing tank 21 through the air duct 23. After the air in the tank is expelled, the air duct 23 is closed. The heating jacket 22 is activated to heat the raw materials to the set temperature and maintain a constant temperature. Simultaneously, the stirring motor 61 is activated, driving the rotating shaft 62 to rotate the stirring blades 63 and the scraper frame 64. The stirring blades 63 ensure uniform mixing of the raw materials and antibacterial agents, while the scraper frame 64 removes residual raw materials from the inner wall of the mixing tank 21. After mixing, the raw materials enter the screw extrusion box 31 through the bottom of the mixing tank 21. The drive motor 33 is activated, driving the extrusion screw 32 to rotate, extruding and conveying the raw materials between the fixed roller 42 and the adjusting roller 44. According to the required film thickness, the knob on the top of the adjusting screw 45 is rotated, causing the lifting frame 43 to move along the slide 411, adjusting the distance between the adjusting roller 44 and the fixed roller 42. The raw materials pass through the fixed roller 42... Under the extrusion action of the adjusting roller 44, the film is formed. Finally, the winding motor 53 is started to drive the winding roller 52 to rotate, and the formed medical antibacterial polyurethane film is automatically wound up to complete the production operation.

[0026] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A medical antibacterial polyurethane film production and molding apparatus, characterized in that: The system includes a base (1), and above the base (1) are arranged a heat preservation storage component (2), an extrusion mixing component (3), a forming component (4) and a winding component (5). The heat preservation storage component (2) includes a mixing tank (21), a heating jacket (22) and a gas guide pipe (23). The heating jacket (22) is fitted outside the mixing tank (21). One end of the gas guide pipe (23) is connected to an inert gas source, and the other end extends to the bottom of the mixing tank (21). A stirring component (6) is arranged inside the mixing tank (21).

2. The medical antibacterial polyurethane film production and molding apparatus according to claim 1, characterized in that: The mixing tank (21) is equipped with a feeding pipe (7) and an exhaust port (8) at the top.

3. The medical antibacterial polyurethane film production and molding apparatus according to claim 1, characterized in that: The stirring assembly (6) includes a stirring motor (61), a rotating shaft (62), stirring blades (63), and a scraper frame (64). The stirring motor (61) is located at the top of the mixing tank (21). The output shaft of the stirring motor (61) passes through the mixing tank (21) and is connected to the rotating shaft (62). Stirring blades (63) are provided on both sides of the rotating shaft (62). There are two scraper frames (64). The two scraper frames (64) are fixed on both sides of the rotating shaft (62). One end of the scraper frame (64) is in contact with the inner wall of the mixing tank (21).

4. The medical antibacterial polyurethane film production and molding apparatus according to claim 1, characterized in that: The extrusion mixing assembly (3) includes a screw extrusion box (31), an extrusion screw (32), and a drive motor (33). The screw extrusion box (31) is connected to the bottom of the mixing tank (21). The extrusion screw (32) is rotatably installed inside the screw extrusion box (31). The drive motor (33) is located outside the screw extrusion box (31). The output shaft of the drive motor (33) passes through the screw extrusion box (31) and is connected to the extrusion screw (32).

5. The medical antibacterial polyurethane film production and molding apparatus according to claim 4, characterized in that: The molding assembly (4) includes a molding frame (41), a fixed roller (42), a lifting frame (43), an adjusting roller (44), and an adjusting screw (45). The molding frame (41) is located on the top of the base (1). The fixed roller (42) is rotatably installed inside the molding frame (41). The lifting frame (43) is slidably installed inside the molding frame (41). The adjusting roller (44) is rotatably installed inside the lifting frame (43). One end of the adjusting screw (45) is threaded through the molding frame (41) and the lifting frame (43) and connected. The discharge port of the screw extrusion box (31) faces between the fixed roller (42) and the adjusting roller (44).

6. The medical antibacterial polyurethane film production and molding apparatus according to claim 5, characterized in that: The molding frame (41) has sliding grooves (411) on both sides inside, and the lifting frame (43) has sliders on both sides, with the sliders on both sides slidingly disposed in the sliding grooves (411).

7. The medical antibacterial polyurethane film production and molding apparatus according to claim 1, characterized in that: The winding assembly (5) includes a winding frame (51), a winding roller (52) and a winding motor (53). The winding frame (51) is located on the top of the base (1). The winding roller (52) is rotatably installed inside the winding frame (51). The winding motor (53) is located outside the winding frame (51). The output shaft of the winding motor (53) passes through the winding frame (51) and is connected to the winding roller (52).

8. The medical antibacterial polyurethane film production and molding apparatus according to claim 1, characterized in that: The thermal insulation storage component (2) has support frames on both sides of its exterior, and the bottom of the support frames is fixed to the top of the base (1).

9. The medical antibacterial polyurethane film production and molding apparatus according to claim 1, characterized in that: The bottom of the extrusion mixing assembly (3) is provided with a support base, and the bottom of the support base is fixed to the top of the base (1).

10. The medical antibacterial polyurethane film production and molding apparatus according to claim 5, characterized in that: A knob is provided on the top of the adjusting screw (45).

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