Infrared cough-relieving patch as well as preparation equipment and preparation method thereof

Abstract

The invention relates to the field of preparation of infrared cough-relieving patches, in particular to an infrared cough-relieving patch and preparation equipment and a preparation method thereof.The infrared cough-relieving patch comprises coating equipment, and the coating equipment comprises a drying unit; the drying unit is used for drying medical pressure-sensitive adhesive coated on non-woven fabric and comprises a base, a drying box is arranged on the base, the upper end face and the lower end face of the drying box are arranged in a penetrating mode, a strip-shaped inlet is formed in one side of the drying box, a strip-shaped outlet is formed in the other side of the drying box, and a heating mechanism is arranged at the top in the drying box. An adsorption mechanism is arranged at the bottom in the drying box; according to the designed infrared cough-relieving patch preparation equipment, on the aspect of improving the production efficiency, the drying time is shortened, the non-woven fabric and the medical pressure-sensitive adhesive are heated at the same time, heat can be transmitted to the non-woven fabric and the medical pressure-sensitive adhesive more evenly and rapidly, a solvent or water for pressing the medical pressure-sensitive adhesive and water in the non-woven fabric are volatilized more rapidly, and therefore the overall drying time is greatly shortened, and the production efficiency is improved. And the production efficiency is obviously improved.

Description

Technical Field

[0001] The invention relates to the field of preparation of infrared cough-relieving patches, in particular to an infrared cough-relieving patch and a preparation device and a preparation method thereof. Background Art

[0002] Infrared cough patches are used to treat cough, sputum and wheezing symptoms caused by acute and chronic bronchitis, pneumonia, pharyngitis, colds, etc. They belong to the field of medical devices. Their working principle is to utilize the thermal effect of far infrared rays and the residual magnetic induction intensity of magnetic powder. By sticking them on cough-relieving points such as Tiantu and Feishu on the chest or back of the human body, they deliver heat and magnetic energy to the patient's respiratory tract, thereby promoting blood circulation and lymphatic detoxification, and relieving the discomfort caused by cough.

[0003] As one of the equipment used in the preparation process of infrared cough suppressant, the coating equipment is used to coat the medical pressure-sensitive adhesive on the non-woven fabric to make the bottom protective layer of the infrared cough suppressant patch; before the medical pressure-sensitive adhesive is coated on the non-woven fabric, the medical pressure-sensitive adhesive is in a flowing liquid state to ensure that the medical pressure-sensitive adhesive can be evenly coated on the non-woven fabric. After the medical pressure-sensitive adhesive is coated on the surface of the non-woven fabric, the medical pressure-sensitive adhesive needs to be dried and bonded to the non-woven fabric. At present, it is generally carried out by hot air drying, that is, by blowing hot air into the non-woven fabric, the medical pressure-sensitive adhesive is in direct contact with the medical pressure-sensitive adhesive to evaporate the moisture on the surface of the medical pressure-sensitive adhesive to achieve the purpose of drying. In order to ensure that the drying degree of the medical pressure-sensitive adhesive can meet the expected indicators, the contact time between the medical pressure-sensitive adhesive and the hot air is extended and the process is carried out slowly, which will reduce the efficiency of the preparation system of the bottom protective layer and needs to be improved.

[0004] Therefore, in view of the above problems, an infrared cough suppressant patch and a preparation device and a preparation method thereof are proposed. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve the technical problem is: the infrared cough patch preparation device described in the present invention includes a coating device, and the coating device includes a drying unit; The drying unit is used to dry the medical pressure-sensitive adhesive coated on the non-woven fabric, and the drying unit includes a base, a drying box is arranged on the base, the upper and lower end surfaces of the drying box are through-arranged, a strip-shaped inlet is arranged on one side of the drying box, and a strip-shaped outlet is arranged on the other side of the drying box, a heating mechanism is arranged on the top of the drying box, and an adsorption mechanism is arranged on the bottom of the drying box; The heating mechanism comprises a cover plate, a hollow plate is provided below the cover plate, a plurality of air jet holes are provided on the lower surface of the hollow plate, the hollow plate is connected to the cover plate through a plurality of rows of heating pipes, and each row of heating pipes penetrates the cover plate and extends outside the drying box; The adsorption mechanism comprises a bottom shell, a plurality of rows of adsorption holes are arranged on the upper surface of the bottom shell, and a plurality of rows of strip grooves are also arranged on the upper surface of the bottom shell, and each row of strip grooves is arranged to overlap with each row of adsorption holes.

[0007] Preferably, a plurality of rows of guide plates are provided on the lower surface of the hollow plate, two adjacent guide plates are located on both sides of the same row of air jet holes, and the lower ends of the guide plates are extended toward the upper surface of the non-woven fabric.

[0008] Preferably, a plurality of guide strips are provided on the surface of each guide plate, and the guide strips on two adjacent guide plates are arranged opposite to each other.

[0009] Preferably, negative pressure components are provided on both sides of the drying box, and the negative pressure components are used to adsorb and stably coat the non-woven fabric with the medical pressure-sensitive adhesive, and the negative pressure components include an adsorption shell, which is fixed to the drying box, and the upper surface of the adsorption shell is open, and multiple rows of vacuum suction nozzles are provided in the adsorption shell, and the vacuum suction nozzles are connected to the inside of the adsorption shell, and the adsorption shell is connected to the external negative pressure pump through the exhaust pipe; A sealing plate is provided on the upper surface of the adsorption shell, and a plurality of rows of through holes are provided on the sealing plate, and the through holes are arranged opposite to the vacuum suction nozzles one by one.

[0010] Preferably, the air outlet of each vacuum nozzle is arranged on one side of its outer circle, and an adjusting mechanism is provided in the air outlet, the adjusting mechanism is arranged below the air inlet of the vacuum nozzle, and the adjusting mechanism includes a rotating shaft fixed to the bottom of the air outlet, a sealing plate is provided on the rotating shaft, the sealing plate is rotatably connected to the rotating shaft through a torsion spring, the sealing plate is located below the air inlet of the vacuum nozzle, and a top screw is provided below the sealing plate, and the top screw thread penetrates to the lower surface of the adsorption shell.

[0011] Preferably, a rubber plug is provided on the upper surface of each sealing plate, and the rubber plug is arranged in a truncated cone shape.

[0012] Preferably, a rubber strip is provided on the edge of the lower surface of the adsorption shell, and the rubber strip is used to seal the gap between the adsorption shell and the lower port of the drying box.

[0013] A method for preparing an infrared cough patch, comprising the above-mentioned infrared cough patch preparation device, and comprising the following steps: S1: raw material mixing, mixing medical pressure-sensitive adhesive, infrared ceramic powder and magnetic powder to prepare infrared material layer slurry; S2: attaching a dressing layer, coating the infrared material layer slurry on the non-woven fabric through a coating device, and then attaching a layer of release paper on the surface of the infrared material layer slurry to prepare a patch; S3: Quality inspection and cutting: Quality inspection of the patch, including color, shape and flatness, to ensure there are no bubbles, wrinkles or damage, and then cutting into the specified shape; S4: Preparation of outer protective layer: coating the medical pressure-sensitive adhesive on the non-woven fabric by a coating device to form the bottom protective layer of the patch; S5: Quality inspection, quality inspection of the bottom protective layer, including color, shape and flatness, to ensure there are no bubbles, wrinkles or damage; S6: Insert the patch assembly, cover the patch on the bottom protective layer, ensure coverage, no bubbles and wrinkles, and attach a layer of release paper to the part of the bottom protective layer without the patch, to prepare an infrared cough patch; S7: Magnetization: Place the infrared cough patch flatly into the magnetizer for flat magnetization. During the magnetization process, ensure that the magnetic powder layer is evenly magnetized. The magnetization time is controlled within 1 to 2 minutes to ensure the magnetization effect and efficiency. S8: Packaging: Use a packaging machine to pack the magnetized infrared cough patches into boxes, which will then pass quality inspection and be stored in the warehouse.

[0014] Preferably, the plaster in S3 can be cut into one of the shapes of rectangle, circle, strip or special shape.

[0015] An infrared cough suppressant patch is prepared by the above-mentioned infrared cough suppressant patch preparation method. The infrared cough suppressant patch comprises, in order of upper and lower layers: a bottom protective layer of non-woven fabric material, a medical pressure-sensitive adhesive coating, a plaster layer, a release paper attached to the surface of the plaster layer, and a release paper attached to the bottom protective layer.

[0016] The present invention is beneficial in that: 1. In the present invention, the infrared cough patch preparation equipment designed improves production efficiency and shortens the drying time. When the non-woven fabric and the medical pressure-sensitive adhesive are heated at the same time, the heat can be transferred to the two more evenly and quickly, so that the solvent or water in the medical pressure-sensitive adhesive and the water in the non-woven fabric evaporate faster, thereby greatly shortening the overall drying time. For example, in some traditional drying processes, the non-woven fabric needs to be preheated first, and then the medical pressure-sensitive adhesive is coated and dried, and the whole process takes a long time; while synchronous drying omits these cumbersome steps, directly reaches the point in one step, and significantly improves production efficiency; 2. In the present invention, the infrared cough patch preparation equipment designed reduces the production links, avoids the problems of mismatched shrinkage between the non-woven fabric and the medical pressure-sensitive adhesive and poor bonding effect caused by inconsistent drying conditions during step-by-step drying, reduces the defective rate caused by poor drying, and thus reduces the links such as rework and waste disposal, further improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a first-view stereoscopic diagram of the drying unit in the present invention; Figure 2 A second perspective stereoscopic view of the drying unit in the present invention; Figure 3 It is a side view of the drying unit in the present invention; Figure 4 It is a cross-sectional view of the drying box in the present invention; Figure 5 It is a three-dimensional diagram of the drying box in the present invention; Figure 6 is a three-dimensional diagram of the cover plate of the present invention; Figure 7 is a side view of the cover plate of the present invention; Figure 8 is a three-dimensional diagram of the guide plate in the present invention; Fig. 9 is a side view of the guide plate of the present invention; Fig.10 is a three-dimensional diagram of the bottom shell of the present invention; Fig.11 is a three-dimensional diagram of the adsorption shell of the present invention; Fig.12 is a three-dimensional diagram of the sealing plate in the present invention; Fig.13 is a three-dimensional diagram of the vacuum nozzle of the present invention; Fig.14 is a cross-sectional view of the vacuum nozzle of the present invention; Fig.15 This is an exploded view of the infrared cough patch of the present invention; Fig.16 The present invention is a flow chart of the method for preparing the infrared cough patch.

[0018] In the figure: base 1, drying box 2, inlet 3, outlet 4, cover plate 5, hollow plate 6, heating tube 7, bottom shell 8, adsorption hole 9, strip groove 10, guide plate 11, guide strip 12, adsorption shell 13, vacuum nozzle 14, exhaust pipe 15, sealing plate 16, through hole 17, air outlet 18, blocking plate 19, air inlet 20, top screw 21, rubber plug 22, bottom protective layer 23, medical pressure-sensitive adhesive coating 24, plaster layer 25, release paper 26. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0020] Reference Figure 1 - Fig.10, an infrared cough patch preparation device, including a coating device, including a drying unit; the drying unit is used to dry the medical pressure-sensitive adhesive coated on the non-woven fabric, and the drying unit includes a base 1, a drying box 2 is arranged on the base 1, the upper and lower end surfaces of the drying box 2 are through-arranged, a strip-shaped inlet 3 is opened on one side of the drying box 2, and a strip-shaped outlet 4 is opened on the other side of the drying box 2, a heating mechanism is arranged on the top of the drying box 2, and an adsorption mechanism is arranged on the bottom of the drying box 2; the heating mechanism includes a cover plate 5, a hollow plate 6 is arranged below the cover plate 5, and a plurality of rows of air jet holes are arranged on the lower surface of the hollow plate 6, and the hollow plate 6 is connected to the cover plate 5 through a plurality of rows of heating pipes 7, and each row of heating pipes 7 passes through the cover plate 5 and extends to the outside of the drying box 2; the adsorption mechanism includes a bottom shell 8, a plurality of rows of adsorption holes 9 are arranged on the upper surface of the bottom shell 8, and a plurality of rows of strip grooves 10 are also arranged on the upper surface of the bottom shell 8, Each row of strip grooves 10 is arranged to overlap with each row of adsorption holes 9; the infrared cough patch preparation device designed in this embodiment is a coating device, which is used to coat the medical pressure-sensitive adhesive on the non-woven fabric, and the drying unit in the coating device is an auxiliary structure in the coating device, which is used to dry the medical pressure-sensitive adhesive coated on the non-woven fabric; The specific working process is as follows: Guide rollers are arranged on both sides of the base 1. Figure 3 As shown, the guide roller arranged on the left is a feeding guide roller, which is used to guide the non-woven fabric coated with the medical pressure-sensitive adhesive from the inlet 3 to the drying box 2, and the guide roller arranged on the right is a unloading guide roller, which is used to guide and transport the dried medical pressure-sensitive adhesive from the outlet 4 away from the drying box 2; The non-woven fabric coated with the medical pressure-sensitive adhesive is conveyed to the drying box 2. A hollow plate 6 is arranged in the drying box 2. The hollow plate 6 is connected to an external air pump through a heating pipe 7. The air pump pumps a hot air flow from the outside into the hollow plate 6. The hot air flow is discharged from the air jet hole. The gas blows downward on the medical pressure-sensitive adhesive to heat and dry the medical pressure-sensitive adhesive. At the same time, after the hot air flow acts on the medical pressure-sensitive adhesive, the residual hot air flow continues to flow downward through the adsorption mechanism; The inside of the bottom shell 8 is connected to the external negative pressure pump through the air pipe. The negative pressure pump makes the inside of the bottom shell 8 negative pressure. The adsorption hole 9 is directly connected to the inside of the bottom shell 8. The lower surface of the non-woven fabric is attached to the upper surface of the bottom shell 8 and covers the adsorption hole 9. The adsorption card hole adsorbs the non-woven fabric to stably attach to the bottom shell 8 and move, ensuring the stable transmission of the non-woven fabric. When the non-woven fabric blocks the adsorption hole 9, the residual hot air flow will flow along the strip groove 10 to the position of the adsorption hole 9, then flow along the adsorption hole 9 into the bottom shell 8, and finally be discharged from the drying box 2 along the air pipe. When the hot air flow moves along the strip groove 10, the hot air flow will heat and dry the bottom of the non-woven fabric, so that the temperature of the non-woven fabric and the temperature of the medical pressure-sensitive adhesive on its upper surface tend to be the same, so that the non-woven fabric and the medical pressure-sensitive adhesive are heated and dried simultaneously; This design improves production efficiency: Shorten the drying time. When the non-woven fabric and the medical pressure-sensitive adhesive are heated at the same time, the heat can be transferred to both more evenly and quickly, so that the solvent or water in the medical pressure-sensitive adhesive and the water in the non-woven fabric can evaporate faster, thereby greatly shortening the overall drying time. For example, in some traditional drying processes, the non-woven fabric needs to be preheated first, and then the medical pressure-sensitive adhesive is applied and dried. The whole process takes a long time. Synchronous drying omits these cumbersome steps and is done in one step, which significantly improves production efficiency. Reducing production links, avoiding the problems of mismatched shrinkage between non-woven fabric and medical pressure-sensitive adhesive and poor bonding effect caused by inconsistent drying conditions during step-by-step drying, reducing the defective rate caused by poor drying, and thus reducing rework and waste disposal, further improving production efficiency; In terms of ensuring product quality: Enhance the bonding effect. During the synchronous drying process, the non-woven fabric and the medical pressure-sensitive adhesive can better adapt and match each other under the same temperature and drying environment. The adhesive layer structure formed by the medical pressure-sensitive adhesive during the drying process is more uniform and dense, and the combination with the non-woven fabric is closer, thereby enhancing the bonding strength and peeling strength between the medical pressure-sensitive adhesive and the non-woven fabric, making the bonding performance of the final product more stable and reliable; Reduce bubbles and defects. During step-by-step drying, nonwoven fabrics and medical pressure-sensitive adhesives may produce bubbles or other defects at the interface due to different drying speeds. Synchronous drying can make the two shrink synchronously, reducing stress concentration caused by inconsistent shrinkage, thereby effectively avoiding the generation of defects such as bubbles, wrinkles, and cracks, and improving the appearance and internal quality of the product. In terms of energy saving and consumption reduction: Improve the utilization rate of heat energy. Heat and dry the non-woven fabric and the medical pressure-sensitive adhesive at the same time, which can make more reasonable use of heat energy and avoid the heat loss and waste that may occur when heating separately. In the drying box 2, the heat can be more concentratedly transferred to the part that needs to be dried, which improves the utilization efficiency of heat energy and reduces energy consumption. Reduce equipment operating costs. Since synchronous drying shortens the drying time, the corresponding drying equipment operating time will also be reduced, thereby reducing the equipment operating costs, including electricity costs, fuel costs, etc. At the same time, it reduces equipment wear and maintenance costs, further reducing production costs; At the same time, in terms of improving process flexibility: Adaptable to a variety of non-woven fabrics, the synchronous drying process can better adapt to different types of non-woven fabrics, such as plastics, paper, fabrics, metals, etc. For some heat-sensitive non-woven fabrics, the temperature and time of synchronous drying can be precisely controlled to avoid deformation and discoloration of non-woven fabrics due to excessive heating, thereby expanding the application range of medical pressure-sensitive adhesive products; Easy to adjust the process: During the production process, the process parameters of synchronous drying, such as temperature, wind speed, time, etc., can be flexibly adjusted according to the quality and performance requirements of different products to achieve the best drying effect. This flexibility enables enterprises or factories to respond to market changes more quickly and produce diversified and personalized pressure-sensitive adhesive products. In addition, in this embodiment, the hollow plate 6 has an expandable space, which can not only discharge the hot air flow through the jet holes, but also set some gas filtering components therein, such as setting a filter net and other gas filtering components to filter the hot air flow through one or more passes, thereby reducing the adhesion of foreign matter in the external hot air flow to the medical pressure-sensitive adhesive, improving the production hygiene level of the infrared cough patch, and thus improving the quality of the product.

[0021] Reference Figure 1 - Fig.10 , a plurality of rows of guide plates 11 are provided on the lower surface of the hollow plate 6, two adjacent guide plates 11 are located on both sides of the same row of air jet holes, and the lower ends of the guide plates 11 are extended toward the upper surface of the non-woven fabric; The two side edges of the guide plate 11 are attached to the inner wall of the drying box 2. The hot air flow discharged from the jet hole limits the hot air flow to flow downward only along the two adjacent guide plates 11. At the same time, the hot air flow flows along the gap between the two guide plates 11. The hot air flow is blown onto the medical pressure-sensitive adhesive between the two guide plates 11. This design evenly disperses the hot air flow to the surface of the pressure-sensitive adhesive, avoiding the problem of inconsistent drying caused by concentrated or uneven hot air flow; for example, in some traditional drying equipment, the hot air flow may be too concentrated in some areas, resulting in local overheating, while other areas are insufficiently dried. The guide plate 11 is reasonably designed to evenly distribute the air flow, ensuring that the drying effect of various parts of the surface of the medical pressure-sensitive adhesive is consistent. At the same time, the uniform hot air flow distribution can prevent local overheating of the surface of the medical pressure-sensitive adhesive, thereby avoiding problems such as denaturation, discoloration or performance degradation of the adhesive layer caused by overheating. This is particularly important for some temperature-sensitive medical pressure-sensitive adhesives and can ensure the quality and performance of the product.

[0022] Reference Figure 1 - Fig.10 , each of the guide plates 11 is provided with a plurality of guide strips 12 on its surface, and the guide strips 12 on two adjacent guide plates 11 are arranged opposite to each other one by one; The guide strip 12 is a further optimization of the structure and effect of the guide plate 11. Figure 6 - Fig. 9As shown, the guide strips 12 further subdivide the flow path of the hot air flow, and a plurality of guide strips 12 divide the space between two adjacent guide plates 11 into a plurality of air flow channels. When the hot air flow flows into between two adjacent guide plates 11, the hot air flow will disperse along the air flow channels and evenly fall on the surface of the pressure-sensitive adhesive. At the same time, more hot air flow can also be guided to the side wall of the drying box 2 to offset the area with lower local temperature on the side wall of the drying box 2, so that the surface of the pressure-sensitive adhesive is exposed to a more uniform hot air flow.

[0023] Reference Figure 1 - Fig.13 Negative pressure components are arranged on both sides of the drying box 2, and the negative pressure components are used to adsorb and stably coat the non-woven fabric with the medical pressure-sensitive adhesive, and the negative pressure components include an adsorption shell 13, the adsorption shell 13 is fixed to the drying box 2, the upper surface of the adsorption shell 13 is open, and multiple rows of vacuum suction nozzles 14 are arranged in the adsorption shell 13, and the vacuum suction nozzles 14 are connected to the inside of the adsorption shell 13, and the adsorption shell 13 is connected to the external negative pressure pump through the exhaust pipe 15; The upper surface of the adsorption shell 13 is provided with a sealing plate 16, and a plurality of rows of through holes 17 are provided on the sealing plate 16, and the through holes 17 are arranged one by one opposite to the vacuum suction nozzles 14; The inlet 3 and the outlet 4 on the drying box 2 are arranged in a strip shape to reduce the natural airflow or dust from the outside from entering the drying box 2, or reduce the amount of hot air in the drying box 2 flowing out from the inlet 3 and the outlet 4, in short, reduce the temperature variation range in the drying box 2, and ensure the cleanliness of the drying box 2; If the height of the inlet 3 and the outlet 4 is further reduced, the influence of the external environment on the drying box 2 and the loss of hot air flow in the drying box 2 can be further reduced, but it has an adverse effect on the non-woven fabric coated with medical pressure-sensitive adhesive, and there is a problem that the medical pressure-sensitive adhesive touches the upper edge of the inlet 3 or the outlet 4. For this reason, a negative pressure component is set at the inlet 3 and the outlet 4, which can stabilize the non-woven fabric coated with medical pressure-sensitive adhesive and reduce the up and down shaking of the non-woven fabric coated with medical pressure-sensitive adhesive; The specific working principle of the negative pressure component is as follows: the adsorption shell 13 is connected to the external negative pressure pump through the exhaust pipe 15, the adsorption shell 13 is always in a negative pressure state, the adsorption hole 9 is connected to the vacuum suction nozzle 14, the sealing plate 16 covers the adsorption shell 13, and the through hole 17 is connected to the air inlet 20 of the vacuum suction nozzle 14, so that the external gas can only enter the adsorption shell 13 from the vacuum suction nozzle 14. When the non-woven fabric coated with the medical pressure-sensitive adhesive moves from the sealing plate 16, the vacuum suction nozzle 14 adsorbs the non-woven fabric, so that the non-woven fabric coated with the medical pressure-sensitive adhesive can be attached to the upper surface of the sealing plate 16 and slide, and the upper surface of the sealing plate 16 is flush with the lower edges of the inlet 3 and the outlet 4, or the upper surface of the sealing plate 16 is lower than the lower edges of the inlet 3 and the outlet 4, to ensure that the medical pressure-sensitive adhesive will not touch the upper edges of the inlet 3 and the outlet 4.

[0024] Reference Figure 1 - Fig.14 The air outlet 18 of each vacuum nozzle 14 is arranged on one side of its outer ring, and an adjustment mechanism is arranged in the air outlet 18, and the adjustment mechanism is arranged below the air inlet 20 of the vacuum nozzle 14, and the adjustment mechanism includes a rotating shaft fixed to the bottom of the air outlet 18, and a blocking plate 19 is arranged on the rotating shaft, and the blocking plate 19 is rotatably connected to the rotating shaft through a torsion spring, and the blocking plate 19 is located below the air inlet 20 of the vacuum nozzle 14, and a top screw 21 is arranged below the blocking plate 19, and the top screw 21 is threadedly penetrated to the lower surface of the adsorption shell 13; The vacuum suction nozzle 14 is partially blocked by the adjustment mechanism to control the adsorption area. In the area on the adsorption shell 13 where no non-woven fabric passes, the vacuum suction nozzle 14 corresponding to the area can be blocked to prevent foreign matter from being sucked in and blocking the vacuum suction nozzle 14. Alternatively, the exhaust volume per unit time of the lower hole of the air inlet hole 20 is adjusted through the adjustment mechanism, the rotating top screw 21 moves downward, and the sealing plate 19 deflects downward under the torsion of the torsion spring connected thereto. At this time, the exhaust volume of the lower hole of the air inlet hole 20 increases, that is, the air inlet hole 20 cooperates with the through hole 17 on the sealing plate 16 to absorb thicker non-woven fabrics, or non-woven fabrics with greater air permeability, thereby ensuring the stability of the non-woven fabric during transmission, and is suitable for non-woven fabric transmission in a variety of different situations.

[0025] Reference Fig.13 - Fig.14 , each of the sealing plates 19 has a rubber plug 22 on its upper surface, and the rubber plug 22 is arranged in a truncated cone shape; The rubber plug 22 is used to block the air inlet 20. When the top screw 21 rotates the upper sealing plate 19, the rubber plug 22 on the sealing plate 19 will be embedded in the air inlet 20, which can completely block the air inlet 20 to prevent air from entering the air inlet 20 and affecting the adsorption effect of other air inlet holes 20.

[0026] Reference Figure 1 - Fig.10 The lower surface edge of the adsorption shell 13 is provided with a rubber strip, which is used to block the gap between the adsorption shell 13 and the lower port of the drying box 2; The cover plate 5 is also provided with a rubber strip, which is arranged at the edge of its upper surface and has the same function as the rubber strip arranged on the adsorption shell 13, and is used to improve the sealing performance, so that the hot air flow injected into the drying box 2 can fully act on the medical pressure-sensitive adhesive and the non-woven fabric, thereby reducing the leakage of the hot air flow.

[0027] Reference Figure 1 - Fig.16 , a method for preparing an infrared cough patch, the method for preparing an infrared cough patch comprising the above-mentioned infrared cough patch preparation device, the method for preparing an infrared cough patch comprising the following steps: S1: raw material mixing, mixing medical pressure-sensitive adhesive, infrared ceramic powder and magnetic powder to prepare infrared material layer slurry; S2: attaching a dressing layer, coating the infrared material layer slurry on the non-woven fabric through a coating device, and then attaching a layer of release paper 26 on the surface of the infrared material layer slurry to prepare a patch; S3: Quality inspection and cutting: Quality inspection of the patch, including color, shape and flatness, to ensure there are no bubbles, wrinkles or damage, and then cutting into the specified shape; S4: preparing the outer protective layer, coating the medical pressure-sensitive adhesive on the non-woven fabric by a coating device to form the bottom protective layer 23 of the patch; S5: Quality inspection: quality inspection of the bottom protective layer 23, including color, shape and flatness, to ensure there are no bubbles, wrinkles or damage; S6: Insert the sheet assembly, load the plaster on the bottom protective layer 23, ensure coverage, no bubbles and wrinkles, and attach a layer of release paper 26 to the part without plaster on the bottom protective layer 23 to prepare an infrared cough patch; S7: Magnetization: Place the infrared cough patch flatly into the magnetizer for flat magnetization. During the magnetization process, ensure that the magnetic powder layer is evenly magnetized. The magnetization time is controlled within 1 to 2 minutes to ensure the magnetization effect and efficiency. S8: Packaging: Use a packaging machine to pack the magnetized infrared cough patches into boxes, which will then pass quality inspection and be stored in the warehouse.

[0028] Reference Fig.16 In S3, the plaster can be cut into one of a rectangular shape, a circular shape, a strip shape or an irregular shape.

[0029] Reference Figure 1 - Fig.16 , an infrared cough patch, the infrared cough patch is prepared by the above-mentioned infrared cough patch preparation method, and the infrared cough patch comprises, in order of upper and lower layers: a bottom protective layer 23 of a non-woven fabric material, a medical pressure-sensitive adhesive coating 24, a plaster layer 25, a release paper 26 attached to the surface of the plaster layer 25, and a release paper 26 attached to the bottom protective layer 23; The infrared cough patch is Fig.15 As shown, the upper and lower layers are arranged, and a non-glue area is provided on one side of the bottom protective layer 23, that is, no medical pressure-sensitive adhesive is coated, which can prevent one side of the release paper 26 attached to the bottom protective layer 23 from adhering to the bottom protective layer 23. When it is used later, it can be peeled off along the side of the release paper 26 attached to the bottom protective layer 23, which is convenient for use; and the release paper 26 attached to the plaster layer 25 can play a protective role, and protect the plaster layer 25 together with the release paper 26 attached to the bottom protective layer 23.

[0030] Working principle: The present invention describes the operating principle of the infrared cough patch preparation device as follows: like Figure 3 In the figure, the guide roller on the left is used to guide the non-woven fabric coated with the medical pressure-sensitive adhesive into the drying box 2. A hollow plate 6 is arranged in the drying box 2. The hollow plate 6 is connected to the external air pump through the heating pipe 7. The air pump pumps the external dry hot air flow into the hollow plate 6. The hot air flow is discharged from the air jet hole. The hot air flow flows along the gap between the two guide plates 11. The hot air flow is blown on the medical pressure-sensitive adhesive between the two guide plates 11. This design evenly disperses the hot air flow to the surface of the pressure-sensitive adhesive, avoiding the problem of inconsistent drying caused by concentrated or uneven hot air flow. The gas blows downward on the medical pressure-sensitive adhesive. At the same time, after the hot air flow acts on the medical pressure-sensitive adhesive, the residual hot air flow continues to flow downward through the adsorption mechanism; This design can shorten the drying time. When the non-woven fabric and the medical pressure-sensitive adhesive are heated at the same time, the heat can be transferred to both more evenly and quickly, so that the solvent or water in the medical pressure-sensitive adhesive and the water in the non-woven fabric can evaporate faster, thereby greatly shortening the overall drying time. For example, in some traditional drying processes, the non-woven fabric needs to be preheated first, and then the medical pressure-sensitive adhesive is applied and dried. The whole process takes a long time. Synchronous drying omits these cumbersome steps and is done in one step, which significantly improves production efficiency. It reduces production links and avoids problems such as mismatched shrinkage between non-woven fabrics and medical pressure-sensitive adhesives and poor bonding effects caused by inconsistent drying conditions during step-by-step drying. It also reduces the defective rate due to poor drying, thereby reducing rework and waste disposal, and further improving production efficiency.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An infrared cough patch preparation device, including a coating device, characterized in that: The coating equipment includes a drying unit; The drying unit is used to dry the medical pressure-sensitive adhesive coated on the non-woven fabric, and the drying unit comprises a base (1), a drying box (2) is arranged on the base (1), the upper and lower end surfaces of the drying box (2) are through-arranged, a strip-shaped inlet (3) is provided on one side of the drying box (2), and a strip-shaped outlet (4) is provided on the other side of the drying box (2), a heating mechanism is provided on the top of the drying box (2), and an adsorption mechanism is provided on the bottom of the drying box (2); The heating mechanism comprises a cover plate (5), a hollow plate (6) is provided below the cover plate (5), a plurality of air jet holes are provided on the lower surface of the hollow plate (6), the hollow plate (6) is connected to the cover plate (5) via a plurality of rows of heating tubes (7), and each row of heating tubes (7) penetrates the cover plate (5) and extends to the outside of the drying box (2); The adsorption mechanism comprises a bottom shell (8), a plurality of rows of adsorption holes (9) are provided on the upper surface of the bottom shell (8), and a plurality of rows of strip grooves (10) are also provided on the upper surface of the bottom shell (8), and each row of the strip grooves (10) is arranged to overlap with each row of the adsorption holes (9).

2. The infrared cough patch preparation device according to claim 1, characterized in that: A plurality of rows of guide plates (11) are provided on the lower surface of the hollow plate (6), two adjacent guide plates (11) are located on both sides of the same row of air jet holes, and the lower ends of the guide plates (11) are extended toward the upper surface of the non-woven fabric.

3. The infrared cough patch preparation device according to claim 2, characterized in that: A plurality of guide strips (12) are provided on the surface of each guide plate (11), and the guide strips (12) on two adjacent guide plates (11) are arranged opposite to each other.

4. The infrared cough patch preparation device according to claim 1, characterized in that: Negative pressure components are provided on both sides of the drying box (2), and the negative pressure components are used to absorb and stably coat the non-woven fabric with the medical pressure-sensitive adhesive, and the negative pressure components include an adsorption shell (13), the adsorption shell (13) is fixedly connected to the drying box (2), the upper surface of the adsorption shell (13) is open, and a plurality of rows of vacuum suction nozzles (14) are provided in the adsorption shell (13), the vacuum suction nozzles (14) are connected to the inside of the adsorption shell (13), and the adsorption shell (13) is connected to an external negative pressure pump through an exhaust pipe (15); A sealing plate (16) is provided on the upper surface of the adsorption shell (13), and a plurality of rows of through holes (17) are provided on the sealing plate (16), wherein the through holes (17) are arranged one by one opposite to the vacuum suction nozzles (14).

5. The infrared cough patch preparation device according to claim 4, characterized in that: The air outlet (18) of each vacuum suction nozzle (14) is arranged on one side of the outer ring thereof, and an adjustment mechanism is arranged in the air outlet (18), and the adjustment mechanism is arranged below the air inlet (20) of the vacuum suction nozzle (14), and the adjustment mechanism comprises a rotating shaft fixed to the bottom of the air outlet (18), and a sealing plate (19) is arranged on the rotating shaft, and the sealing plate (19) is rotatably connected to the rotating shaft through a torsion spring, and the sealing plate (19) is located below the air inlet (20) of the vacuum suction nozzle (14), and a top screw (21) is arranged below the sealing plate (19), and the top screw (21) is threadedly penetrated to the lower surface of the adsorption shell (13).

6. The infrared cough patch preparation device according to claim 5, characterized in that: A rubber plug (22) is provided on the upper surface of each sealing plate (19), and the rubber plug (22) is arranged in a truncated cone shape.

7. The infrared cough patch preparation device according to claim 6, characterized in that: A rubber strip is provided on the edge of the lower surface of the adsorption shell (13), and the rubber strip is used to seal the gap between the adsorption shell (13) and the lower port of the drying box (2).

8. A method for preparing an infrared cough patch, comprising the infrared cough patch preparation device of any one of claims 1 to 7, characterized in that: The preparation method of the infrared cough-relieving patch comprises the following steps: S1: raw material mixing, mixing medical pressure-sensitive adhesive, infrared ceramic powder and magnetic powder to prepare infrared material layer slurry; S2: attaching a dressing layer, coating the infrared material layer slurry on the non-woven fabric through a coating device, and then attaching a layer of release paper (26) on the surface of the infrared material layer slurry to prepare a patch; S3: Quality inspection and cutting: Quality inspection of the patch, including color, shape and flatness, to ensure there are no bubbles, wrinkles or damage, and then cutting into the specified shape; S4: Preparation of outer protective layer, coating the medical pressure-sensitive adhesive on the non-woven fabric by a coating device to form the bottom protective layer of the patch (23); S5: Quality inspection, quality inspection of the bottom protective layer (23), including color, shape and flatness, ensuring there are no bubbles, wrinkles or damage; S6: Insert the patch assembly, load the patch on the bottom protective layer (23), ensure coverage, no bubbles and wrinkles, and adhere a layer of release paper (26) to the part of the bottom protective layer (23) where there is no patch, to prepare an infrared cough patch; S7: Magnetization: Place the infrared cough patch flatly into the magnetizer for flat magnetization. During the magnetization process, ensure that the magnetic powder layer is evenly magnetized. The magnetization time is controlled within 1 to 2 minutes to ensure the magnetization effect and efficiency. S8: Packaging: Use a packaging machine to pack the magnetized infrared cough patches into boxes, which will then pass quality inspection and be stored in the warehouse.

9. The method for preparing an infrared cough patch according to claim 8, characterized in that: In S3, the plaster can be cut into one of a rectangular shape, a circular shape, and a strip shape.

10. An infrared cough patch, which is prepared by the infrared cough patch preparation method of claims 8 and 9, characterized in that: The infrared cough suppressant patch comprises, in order of upper and lower layers: a bottom protective layer (23) of a non-woven fabric material, a medical pressure-sensitive adhesive coating (24), a plaster layer (25), a release paper (26) attached to the surface of the plaster layer (25), and a release paper (26) attached to the bottom protective layer (23).

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