Medical gluing equipment

Abstract

The utility model discloses medical gluing equipment which comprises an unwinding structure, a gluing structure, a freeze drying structure and a winding structure, the freeze drying structure comprises a box body, a conveying assembly and a cold air assembly, and the conveying assembly is installed in the box body and located below the cold air assembly; the cold air assembly comprises a front nozzle set, a rear nozzle set, a connecting pipeline and an air inlet pipeline, the front nozzle set and the rear nozzle set are symmetrically installed on the front side and the rear side of the top of the box body, the air outlet ends of the front nozzle set and the rear nozzle set are installed in the box body, and the air inlet ends of the front nozzle set and the rear nozzle set penetrate through the box body and are arranged on the outer side of the box body; and the air inlet ends of the front nozzle group and the rear nozzle group are connected through a connecting pipeline. According to the utility model, the nozzles in the front nozzle group and the nozzles in the rear nozzle group are oppositely arranged, so that cold air sprayed by the front nozzle group and the rear nozzle group collides, the speed of the cold air can be effectively reduced, the cold air is uniformly distributed around the conveying assembly, and non-uniform distribution of crystals formed by cooling glue on a film is avoided.

Description

Technical Field

[0001] This utility model relates to the field of sterilization and packaging technology, specifically to a medical adhesive coating device. Background Technology

[0002] As a core component of the sterile barrier system for medical devices, the quality of the adhesive coating process in medical sterilization packaging materials directly determines the microbial barrier performance and sterilization adaptability of the packaging. Traditional preparation processes often use hot air circulation drying or atmospheric pressure drying to cure the coated adhesive layer, which results in insufficient drying uniformity. Conventional hot air drying easily leads to rapid film formation on the adhesive layer surface, hindering the evaporation of internal solvents. At the same time, rapid film formation on the adhesive layer surface also prevents the formation of uniform pores, affecting the film's permeability.

[0003] To address the current problems with hot air drying, a method could be considered that involves freeze-drying followed by low-temperature vacuum drying to create uniform pores on the film surface. However, there is currently no dedicated freeze-drying equipment for medical sterilization packaging films after adhesive coating. Furthermore, achieving uniform pores on the film surface requires high uniformity of the freezing air within the freeze-drying equipment. Utility Model Content

[0004] The purpose of this invention is to overcome the defects in the existing technology and provide a medical adhesive application device.

[0005] To achieve the above objectives, the technical solution of this utility model is to design a medical coating device, which includes an unwinding structure, a coating structure, a freeze-drying structure and a winding structure, wherein the unwinding structure, the coating structure, the freeze-drying structure and the winding structure are arranged sequentially in the direction of film movement.

[0006] The freeze-drying structure includes a chamber, a conveying assembly, and a cold air assembly. The chamber has symmetrically arranged inlets and outlets at its left and right ends. The conveying assembly is installed inside the chamber and located below the cold air assembly. The cold air assembly includes a front nozzle group, a rear nozzle group, a connecting pipe, and an air inlet pipe. The front and rear nozzle groups are symmetrically installed on the front and rear sides of the top of the chamber. The air outlets of the front and rear nozzle groups are installed inside the chamber. The air inlets of the front and rear nozzle groups penetrate the chamber and are located on the outside of the chamber. The air inlets of the front and rear nozzle groups are connected by a connecting pipe, and the air inlet of the connecting pipe is connected to the air inlet pipe.

[0007] Furthermore, the front nozzle assembly includes a nozzle and a pipe, the pipe being installed through the housing, with one end of the pipe connected to the nozzle and the other end connected to a connecting pipe; the nozzles of the front nozzle assembly and the rear nozzle assembly are arranged facing each other.

[0008] Furthermore, the cold air assembly also includes a dispersion plate, which is installed inside the housing and located below the front and rear nozzle groups, and the dispersion plate is provided with a plurality of dispersion holes.

[0009] Furthermore, both the inlet and outlet are rectangular openings, and the width of the rectangular opening is 0.1-2cm.

[0010] Furthermore, the front nozzle assembly and the rear nozzle assembly have the same structure.

[0011] Furthermore, the conveying assembly includes a driving wheel, a driven wheel, and a conveyor belt. The driving wheel and the driven wheel are rotatably mounted inside the housing, and the conveyor belt is sleeved on the driving wheel and the driven wheel.

[0012] Furthermore, the conveyor belt has several through holes evenly distributed on it.

[0013] Furthermore, the cooling air assembly also includes an outer insulation shell, which is located outside the connecting pipe. One end of the air intake pipe is connected to the connecting pipe, and the other end passes through the outer insulation shell.

[0014] The advantages and beneficial effects of this utility model are as follows:

[0015] (1) In this utility model, the nozzles in the front nozzle group and the nozzles in the rear nozzle group are arranged facing each other, that is, face to face, so that the cold air sprayed through the front nozzle group and the rear nozzle group collides, which can effectively slow down the speed of the cold air and make the cold air evenly distributed around the conveying component, thus avoiding uneven distribution of the crystals formed by the cooling of the adhesive on the film.

[0016] (2) By setting a dispersion plate and setting dispersion holes on the dispersion plate, this utility model can further buffer the speed of cold air and avoid uneven distribution of crystals formed by the cooling of adhesive on the film.

[0017] (3) By setting through holes on the conveyor belt, this utility model can help the temperature on the upper and lower sides of the membrane to be close to the same, which can effectively improve the freezing efficiency and the uniformity of cooling crystal distribution. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a low-temperature vacuum drying device for preparing medical sterilization packaging according to the present invention;

[0019] Figure 2 This is a schematic diagram of the freeze-drying structure;

[0020] Figure 3 yes Figure 2 A schematic diagram of the front structure;

[0021] Figure 4This is a schematic diagram of the internal structure of the freeze-drying structure;

[0022] Figure 5 This is a cross-sectional structural diagram of the freeze-drying structure;

[0023] Figure 6 yes Figure 5 Another structural diagram from another angle.

[0024] In the diagram: 1. Unwinding structure; 2. Glue coating structure; 3. Freeze-drying structure; 4. Rewinding structure; 300. Box body; 301. Inlet; 302. Outlet; 303. Connecting pipe; 304. Air inlet pipe; 305. Nozzle; 306. Pipe; 307. Dispersion plate; 308. Driven wheel; 309. Driven wheel; 310. Conveyor belt; 311. Membrane; 312. Outer insulation shell. Detailed Implementation

[0025] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0026] according to Figures 1-6 As shown, this utility model is a medical coating device, which includes an unwinding structure 1, a coating structure 2, a freeze-drying structure 3 and a winding structure 4, wherein the unwinding structure 1, the coating structure 2, the freeze-drying structure 3 and the winding structure 4 are arranged in sequence according to the film movement direction.

[0027] The freeze-drying structure 3 includes a housing 300, a conveying assembly, and a cold air assembly. The housing 300 has symmetrically arranged inlets 301 and outlets 302 at its left and right ends. The conveying assembly is installed inside the housing and located below the cold air assembly. The cold air assembly includes a front nozzle assembly, a rear nozzle assembly, a connecting pipe 303, and an air inlet pipe 304. The front and rear nozzle assemblies are symmetrically installed on the front and rear sides of the top of the housing 300. The outlets of the front and rear nozzle assemblies are installed inside the housing 300. The inlets of the front and rear nozzle assemblies penetrate the housing 300 and are located on the outside of the housing 300. The inlets of the front and rear nozzle assemblies are connected by the connecting pipe 303, and the inlet of the connecting pipe 303 is connected to the air inlet pipe 304.

[0028] In the above technical solution, the cold air component facilitates the freeze-drying of the adhesive layer on the membrane of the conveying component. During the freezing process, the adhesive crystallizes and maintains a porous crystalline structure, thereby improving the membrane's air permeability.

[0029] As a preferred embodiment of the above technical solution, the front nozzle assembly includes a nozzle 305 and a pipe 306. The pipe 306 is disposed through the housing 300, and one end of the pipe 306 is connected to the nozzle 305, and the other end is connected to the connecting pipe 303. The nozzles 305 of the front nozzle assembly and the nozzles of the rear nozzle assembly are arranged facing each other.

[0030] In the above technical solution, the nozzles in the front nozzle group and the nozzles in the rear nozzle group are arranged facing each other, that is, face to face. This causes the cold air ejected from the front nozzle group and the rear nozzle group to collide, which can effectively slow down the speed of the cold air and make the cold air evenly distributed around the conveying component, thus avoiding uneven distribution of crystals formed by the cooling of the adhesive on the film.

[0031] As a preferred embodiment of the above technical solution, the cold air assembly further includes a dispersion plate 307, which is installed inside the housing 300 and located below the front nozzle assembly and the rear nozzle assembly, and the dispersion plate 307 is provided with a plurality of dispersion holes.

[0032] In the above technical solution, by setting a dispersion plate and setting dispersion holes on the dispersion plate, the speed of the cold air can be further buffered to avoid uneven distribution of crystals formed by the cooling of the adhesive on the film.

[0033] As a preferred embodiment of the above technical solution, both the inlet 301 and the outlet 302 are rectangular openings, and the width of the rectangular openings is 0.1-2 cm. This width setting effectively ensures the temperature inside the chamber.

[0034] As a preferred embodiment of the above technical solution, the front nozzle assembly and the rear nozzle assembly have the same structure.

[0035] As a preferred embodiment of the above technical solution, the conveying assembly includes a driving wheel 308, a driven wheel 309, and a conveyor belt 310. The driving wheel 308 and the driven wheel 309 are rotatably mounted inside the housing 300, and the conveyor belt 310 is sleeved on the driving wheel 308 and the driven wheel 309.

[0036] As a preferred embodiment of the above technical solution, the conveyor belt 310 has a plurality of through holes evenly distributed on it.

[0037] In the above technical solution, by setting through holes on the conveyor belt, it is beneficial for the temperature on the upper and lower sides of the membrane to be close to the same, which can effectively improve the freezing efficiency and the uniformity of cooling crystal distribution.

[0038] As a preferred embodiment of the above technical solution, the cooling air assembly further includes an outer insulation shell 312, which is disposed outside the connecting pipe 303. One end of the air intake pipe 304 is connected to the connecting pipe 303, and the other end passes through the outer insulation shell.

[0039] The principle of this utility model is as follows:

[0040] The nozzles in the front nozzle group and the nozzles in the rear nozzle group are arranged facing each other, that is, face-to-face. This causes the cold air ejected from the front nozzle group and the rear nozzle group to collide, which can effectively slow down the speed of the cold air and make the cold air evenly distributed around the conveying component, thus avoiding uneven distribution of crystals formed by the cooling of the adhesive on the film.

[0041] By setting a dispersion plate and dispersing holes on the dispersion plate, the speed of the cold air can be further buffered, avoiding uneven distribution of crystals formed by the cooling of the adhesive on the membrane.

[0042] By setting through holes on the conveyor belt, it is beneficial for the temperature on the upper and lower sides of the membrane to be close to the same, which can effectively improve the freezing efficiency and the uniformity of cooling crystal distribution.

[0043] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A medical adhesive application device, characterized in that, It includes an unwinding structure (1), an adhesive coating structure (2), a freeze-drying structure (3), and a winding structure (4), wherein the unwinding structure (1), the adhesive coating structure (2), the freeze-drying structure (3), and the winding structure (4) are arranged in sequence according to the film moving direction; The freeze-drying structure (3) includes a box (300), a conveying component, and a cold air component. The box (300) has an inlet (301) and an outlet (302) symmetrically opened at both ends. The conveying component is installed inside the box and located below the cold air component. The cold air component includes a front nozzle group, a rear nozzle group, a connecting pipe (303), and an air inlet pipe (304). The front nozzle group and the rear nozzle group are symmetrically installed on the front and rear sides of the top of the box (300). The air outlets of the front nozzle group and the rear nozzle group are installed inside the box (300). The air inlets of the front nozzle group and the rear nozzle group penetrate the box (300) and are located outside the box (300). The air inlets of the front nozzle group and the rear nozzle group are connected through the connecting pipe (303). The air inlet of the connecting pipe (303) is connected to the air inlet pipe (304).

2. The medical adhesive application equipment according to claim 1, characterized in that, The front nozzle assembly includes a nozzle (305) and a pipe (306). The pipe (306) is installed through the housing (300), and one end of the pipe (306) is connected to the nozzle (305), and the other end is connected to the connecting pipe (303). The nozzles (305) of the front nozzle assembly and the nozzles of the rear nozzle assembly are arranged facing each other.

3. The medical adhesive application equipment according to claim 2, characterized in that, The cold air assembly also includes a dispersion plate (307), which is installed inside the housing (300) and located below the front nozzle assembly and the rear nozzle assembly, and the dispersion plate (307) has a plurality of dispersion holes.

4. The medical adhesive coating equipment according to claim 3, characterized in that, Both the inlet (301) and the outlet (302) are rectangular openings, and the width of the rectangular opening is 0.1-2cm.

5. The medical adhesive coating equipment according to claim 1, characterized in that, The front and rear nozzle groups have the same structure.

6. The medical adhesive application equipment according to claim 5, characterized in that, The conveying assembly includes a drive wheel (308), a driven wheel (309), and a conveyor belt (310). The drive wheel (308) and the driven wheel (309) are rotatably mounted inside the housing (300), and the conveyor belt (310) is sleeved on the drive wheel (308) and the driven wheel (309).

7. A medical adhesive application device according to claim 6, characterized in that, The conveyor belt (310) has several through holes evenly distributed on it.

8. The medical adhesive coating equipment according to claim 1, characterized in that, The cold air assembly also includes an outer insulation shell (312), which is located outside the connecting pipe (303). One end of the air intake pipe (304) is connected to the connecting pipe (303), and the other end is installed through the outer insulation shell (312).

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