Preheating device for medical breathable gummed paper

Abstract

The utility model relates to the technical field of paper heat treatment, in particular to a medical breathable gummed paper preheating device which comprises two symmetrical supporting assemblies, a preheating part is arranged between the two supporting assemblies, and a plurality of air inlet parts are arranged on the front side of the outer portion of the preheating part. Rollers are arranged on the support to guide a base material to move, after the base material enters the preheating groove, the draught fan blows wind power into the frame body, the wind power is heated by the electric heating bar, heated hot air is blown into the connecting cavity, under the action of the multiple air holes, the hot air can be evenly blown to the base material from the upper side and the lower side of the base material, and under the action of the hot air, the base material can be evenly heated. The base material can be preheated; according to the design, a traditional pipe winding preheating mode is replaced by hot air blowing heating, so that a base material does not need to be wound when being preheated, the base material is not affected by tension due to winding on a heating pipe, adverse effects on the later product processing quality due to tensile deformation can be effectively avoided, and the size precision and the quality stability of a product are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of paper heat treatment technology, specifically a preheating device for medical breathable coated paper. Background Technology

[0002] Medical breathable coated paper is a composite functional material specifically designed for medical applications, primarily used in medical device fixation, wound care, and sterilization packaging. Its core characteristic lies in the balance between breathability and adhesion, achieving strong adhesion while allowing skin to breathe, preventing infection or skin damage caused by a confined environment. During the processing of medical breathable coated paper, preheating of the substrate is necessary to enhance the bonding strength between the adhesive and the fiber substrate.

[0003] Utility model patent CN202323314282.6 discloses a tape protective film laminating machine. This machine includes a machine body, a feeding device disposed within the machine body cavity, and a laminating adhesive applicator fixed to the front of the machine body. An electrical control box is installed on the left side wall of the machine body, and a tape preheating assembly is disposed on the back side wall. By using the tape preheating assembly on the back of the machine body, the tape substrate is wound around the outer surfaces of two electrically controlled heating tubes. Simultaneously, the heating tubes heat both sides of the tape substrate, allowing the adhesive and protective film to adhere better to its surface at a higher temperature. Furthermore, an infrared temperature sensor within the machine body monitors the surface temperature of the tape substrate, controlling the temperature of the heating tubes to maintain the tape substrate within a suitable temperature range for adhesive and protective film adhesion.

[0004] Although the adhesive tape protective film laminating machine has the advantage of heating the adhesive tape substrate, the device still has the following problems in actual use: When heating the adhesive tape substrate, the device uses a design that wraps the substrate around the electrically controlled heating tube. While this design effectively heats the substrate, the thin and light substrate is prone to stretching and deformation under continuous tension. This stretching deformation severely affects the processing quality of subsequent products, making it difficult to meet expected standards. Therefore, we propose a preheating device for medical breathable coated paper. Utility Model Content

[0005] This utility model aims to at least partially solve one of the technical problems in related technologies. Therefore, one objective of this utility model is to provide a preheating device for medical breathable coated paper, which replaces the traditional method of tubing winding preheating with hot air blowing heating. This eliminates the need for winding the substrate during preheating, preventing tension issues caused by winding on the heating tube, effectively avoiding adverse effects on subsequent product processing quality due to stretching deformation, and ensuring the dimensional accuracy and quality stability of the product.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A medical breathable coated paper preheating device includes two symmetrical support components, a preheating section is provided between the two support components, and multiple air inlets are provided on the outer front side of the preheating section.

[0008] Support components are used to support the preheating section and guide the movement of the substrate;

[0009] The preheating section is used to preheat the substrate; it includes a horizontal shell with connecting cavities on both the upper and lower sides of the shell, and a preheating groove between the two connecting cavities for the substrate to pass through and be heated. The front and rear ends of the preheating groove penetrate the outer wall of the shell. Multiple air holes for blowing hot air onto the substrate are provided at the partition between the connecting cavities and the preheating groove. Multiple connecting grooves are provided on both the upper and lower end faces of the shell.

[0010] The air inlet is used to blow hot air into the connecting cavity; it includes a hollow frame with a notch on the rear end face of the frame and air inlet slots at the upper and lower ends of the notch; the shell is fixedly installed at the notch and the air inlet slots are connected to the corresponding connecting slots; the front end face of the frame has an air inlet hole with a fan installed at the air inlet hole, and multiple heating rods are fixed at the front end of the frame.

[0011] In addition, the medical breathable coated paper preheating device proposed in the application may also have the following additional technical features:

[0012] Specifically, the support assembly includes a bracket, with rollers for guiding the substrate rotatably installed on both the upper and lower sides of the bracket opening, and the rollers are staggered in the vertical direction; a strip groove is opened on one side wall of the bracket, and the strip groove is connected to the preheating groove.

[0013] Specifically, the frame has a U-shaped cross-section and is fixedly connected to the shell by bolts.

[0014] Specifically, the bottom of the bracket is fixed with a base plate, and the base plate has two mounting holes.

[0015] Specifically, the cross-sectional shape of the pores is circular, and multiple pores are distributed in a matrix.

[0016] Specifically, the cross-sectional shape of the strip groove is rectangular, and the cross-sectional area of ​​the strip groove is equal to that of the preheating groove.

[0017] Specifically, the air intake groove has a rectangular cross-sectional shape, and the cross-sectional area of ​​the air intake groove is larger than that of the connecting groove.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] The design incorporates a support assembly, a preheating section, and an air inlet. Rollers on the support guide the substrate's movement. After the substrate enters the preheating tank, a fan blows air into the frame, which is heated by heating rods. The heated air is then blown into the connecting cavity. Multiple air vents ensure that the hot air is evenly distributed from the top and bottom of the substrate, preheating it. This design replaces the traditional tubing winding preheating method with hot air blowing heating, eliminating the need for winding the substrate and preventing tension issues caused by the heating tubes. This effectively avoids the adverse effects of stretching deformation on subsequent product processing quality, ensuring dimensional accuracy and quality stability. Furthermore, this hot air blowing heating ensures more uniform heating of the medical breathable coated paper substrate, significantly improving the preheating effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0021] Figure 2 This is a schematic diagram of the support component in Embodiment 1 of this utility model;

[0022] Figure 3 This is a cross-sectional view of the shell structure in Embodiment 1 of this utility model;

[0023] Figure 4 This is a cross-sectional view of the air inlet in Embodiment 1 of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure in Embodiment 2 of this utility model;

[0025] In the picture:

[0026] 1. Support assembly; 10. Bracket; 100. Strip groove; 11. Base plate; 110. Mounting hole; 12. Roller;

[0027] 2. Preheating section; 20. Shell; 200. Connecting cavity; 201. Preheating groove; 202. Connecting groove; 203. Air hole;

[0028] 3. Air inlet; 30. Frame; 300. Air inlet slot; 301. Notch; 31. Fan; 32. Heating rod; 33. Dust filter. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0030] Example 1

[0031] Please see Figures 1-4 As shown, a preheating device for breathable coated paper for medical use includes two symmetrical support components 1, a preheating section 2 is provided between the two support components 1, and multiple air inlets 3 are provided on the front side of the preheating section 2; the support components 1 are used to support the preheating section 2 and guide the movement of the substrate; the support components 1 include a bracket 10, and rollers 12 for guiding the substrate are rotatably installed on the upper and lower sides of the opening of the bracket 10, and the rollers 12 are staggered in the vertical direction; a strip groove 100 is opened on one side wall of the bracket 10, and the strip groove 100 is connected to the preheating groove 201. The preheating section 2 is used to preheat the substrate; it includes a horizontally shaped shell 20, with connecting cavities 200 on both the upper and lower sides of the shell 20. A preheating groove 201 is provided between the two connecting cavities 200 for the substrate to pass through and be heated. The front and rear ends of the preheating groove 201 penetrate the outer wall of the shell 20. Multiple air holes 203 for blowing hot air onto the substrate are provided at the partition between the connecting cavities 200 and the preheating groove 201. Multiple connecting cavities 203 are provided on both the upper and lower end faces of the shell 20. The frame includes a connecting groove 202 and an air inlet 3 for blowing hot air into the connecting cavity 200. The frame includes a hollow frame 30 with a notch 301 on the rear end face and air inlet grooves 300 on both the upper and lower ends of the notch 301. The housing 20 is fixedly installed at the notch 301, and the air inlet grooves 300 are connected to the corresponding connecting grooves 202. The front end face of the frame 30 has an air inlet hole, and a fan 31 is installed at the air inlet hole. Multiple heating rods 32 are fixed at the front end of the interior of the frame 30.

[0032] In this embodiment, the frame 30 has a U-shaped cross-section and is fixedly connected to the housing 20 by bolts. The U-shaped structure gives the frame 30 good spatial containment, and the bolt connection facilitates installation and disassembly, which is beneficial for equipment assembly, maintenance, and component replacement.

[0033] In this embodiment, a base plate 11 is fixed to the bottom of the bracket 10, and two mounting holes 110 are provided on the base plate 11. This design facilitates the stable installation of the bracket 10 with other equipment, precise positioning, and ensures the stability of the equipment during operation.

[0034] In this embodiment, the cross-sectional shape of the pores 203 is circular, and the multiple pores 203 are distributed in a matrix. The circular cross-section facilitates the uniform ejection of hot air, and the matrix distribution allows the hot air to act on the substrate comprehensively and evenly, thereby improving heat transfer efficiency.

[0035] In this embodiment, the cross-sectional shape of the strip groove 100 is rectangular, and the cross-sectional area of ​​the strip groove 100 is equal to the cross-sectional area of ​​the preheating tank 201. This design facilitates the smooth entry and exit of the substrate into the strip groove 100 and the preheating tank 201, ensuring the stability of the substrate preheating.

[0036] In this embodiment, the air inlet groove 300 has a rectangular cross-sectional shape, and its cross-sectional area is larger than that of the connecting groove 202. The larger cross-sectional area of ​​the air inlet groove 300 ensures efficient inflow of hot air, thereby facilitating uniform heating of the substrate.

[0037] It is worth noting that the fan 31 in this embodiment is a conventional technology and will not be described in detail here.

[0038] In practical use, the user first connects the power supply to the ventilator 31, and the ventilator 31 starts to work. The ventilator 31 blows air into the frame 30. When the air passes through multiple heating rods 32, the air is heated. The heated air enters the connecting cavity 200 through the air inlet groove 300 and the connecting groove 202, and is blown to the upper and lower sides of the substrate through multiple air holes 203. Under the blowing of hot air, the substrate can be preheated evenly.

[0039] Example 2

[0040] Please see Figure 5 As shown, this embodiment provides the following technical solution based on embodiment 1: a dust filter 33 is fixed at the air inlet, and the dust filter 33 is fixedly connected to the inner wall of the air inlet by bolts.

[0041] With the above settings, the airflow can be filtered by the dust filter 33 before entering the frame 30. Under the action of the dust filter 33, dust and other impurities in the airflow can be filtered, thereby preventing dust and other impurities from being blown onto the substrate and thus preventing the substrate from being contaminated.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A preheating device for breathable coated paper in medical applications, characterized in that: It includes two symmetrical support components (1), a preheating section (2) is provided between the two support components (1), and multiple air inlets (3) are provided on the front side of the preheating section (2); Support assembly (1) is used to support the preheating section (2) and guide the movement of the substrate; The preheating section (2) is used to preheat the substrate; it includes a horizontal shell (20), and the interior of the shell (20) has connecting cavities (200) on both the upper and lower sides. A preheating groove (201) is provided between the two connecting cavities (200) for the substrate to pass through for heating. The front and rear ends of the preheating groove (201) penetrate the outer wall of the shell (20). Multiple air holes (203) for blowing hot air onto the substrate are provided at the partition between the connecting cavities (200) and the preheating groove (201). Multiple connecting grooves (202) are provided on both the upper and lower end faces of the shell (20). The air inlet (3) is used to blow hot air into the connecting cavity (200); it includes a hollow frame (30), with a notch (301) on the rear end face of the frame (30), and air inlet slots (300) on both the upper and lower ends of the notch (301); the shell (20) is fixedly installed at the notch (301), and the air inlet slots (300) are connected to the corresponding connecting slots (202); the front end face of the frame (30) has an air inlet hole, and a fan (31) is installed at the air inlet hole; multiple electric heating rods (32) are fixed at the front end of the inside of the frame (30).

2. The medical breathable coated paper preheating device according to claim 1, characterized in that: The support assembly (1) includes a bracket (10), and rollers (12) for guiding the substrate are rotatably installed in the opening of the bracket (10) on both the upper and lower sides, and the rollers (12) are staggered in the vertical direction; a strip groove (100) is opened on one side wall of the bracket (10), and the strip groove (100) is connected to the preheating tank (201).

3. The medical breathable coated paper preheating device according to claim 1, characterized in that: The frame (30) has a U-shaped cross-section and is fixedly connected to the shell (20) by bolts.

4. The medical breathable coated paper preheating device according to claim 2, characterized in that: The bottom of the bracket (10) is fixed with a base plate (11), and two mounting holes (110) are provided on the base plate (11).

5. The medical breathable coated paper preheating device according to claim 1, characterized in that: The cross-sectional shape of the pores (203) is circular, and the multiple pores (203) are distributed in a matrix.

6. The medical breathable coated paper preheating device according to claim 2, characterized in that: The cross-sectional shape of the strip groove (100) is rectangular, and the cross-sectional area of ​​the strip groove (100) is equal to the cross-sectional area of ​​the preheating groove (201).

7. The medical breathable coated paper preheating device according to claim 1, characterized in that: The air intake groove (300) has a rectangular cross-sectional shape, and the cross-sectional area of ​​the air intake groove (300) is larger than the cross-sectional area of ​​the connecting groove (202).

Images