A device for applying a hydrocolloid dressing surface gel

Abstract

The utility model provides a kind of water colloid dressing surface gel's coating device, including rack, be set on the coating channel of rack and be set in the substrate conveying mechanism of coating channel;The feed end of substrate conveying mechanism connects base material frame, and the discharge end of substrate conveying mechanism connects split charging equipment;The top surface inside coating channel is provided with injection mechanism and spreading mechanism, injection mechanism is close to the feed end of substrate conveying mechanism, and spreading mechanism is close to the discharge end of substrate conveying mechanism;The discharge port of injection mechanism and spreading mechanism are opposite the centre line of substrate;The outside of coating channel is provided with water colloid storage tank, and water colloid storage tank connects injection mechanism to feed injection mechanism.The water colloid dressing surface gel's coating device has the advantages that design science, operation is simple, coating effect is good, and can be used for dressing production process.

Description

Technical Field

[0001] This utility model relates to the field of hydrocolloid dressing production, specifically to a coating device for a gel on the surface of a hydrocolloid dressing. Background Technology

[0002] Hydrocolloid dressings are made by mixing elastic polymeric hydrogels with synthetic rubber and adhesives. Hydrocolloid dressings have the ability to absorb wound exudate and also possess adhesive properties, forming an occlusive wound; they also have debridement functions. The production steps of hydrocolloid dressings mainly include hydrocolloid preparation, hydrocolloid coating, and hydrocolloid dressing molding. Currently, hydrocolloid coating usually requires a specialized coating mechanism to coat the hydrocolloid onto the substrate. For example, Chinese patent CN114587791A discloses a production equipment for an anti-adhesion, healing-promoting, and antibacterial hydrocolloid dressing. This equipment uses a guiding mechanism and a coating roller. The guiding mechanism transports the substrate, and the coating roller rotates to pick up the hydrocolloid and coat it onto the substrate. However, during use, the hydrocolloid level in the tank gradually decreases, and the amount of hydrocolloid picked up by each rotation of the coating roller is unstable, easily affecting the uniformity of the coating.

[0003] In order to solve the above problems, people have been seeking an ideal technological solution. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a coating device for hydrocolloid dressing surface gel.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A coating apparatus for a hydrocolloid dressing surface gel includes a frame, a coating channel mounted on the frame, and a substrate conveying mechanism disposed within the coating channel. The inlet end of the substrate conveying mechanism is connected to a substrate material rack, and the outlet end of the substrate conveying mechanism is connected to a dispensing device. An injection mechanism and a spreading mechanism are disposed on the top surface inside the coating channel. The injection mechanism is close to the inlet end of the substrate conveying mechanism, and the spreading mechanism is close to the outlet end of the substrate conveying mechanism. The outlet of the injection mechanism and the spreading mechanism are aligned with the centerline of the substrate. A hydrocolloid storage tank is disposed outside the coating channel, and the hydrocolloid storage tank is connected to the injection mechanism to supply material to the injection mechanism.

[0007] The frame includes several vertically arranged support legs and two sets of horizontal support crossbars at the top of the support legs. The substrate conveying mechanism is located between the two sets of support crossbars. The upper sides of the two sets of support crossbars are connected by an inverted U-shaped cover plate. The inverted U-shaped cover plate and the substrate conveying mechanism form a coating channel.

[0008] The support legs are set to four in a rectangular arrangement. The middle parts of two symmetrical support legs are connected by longitudinal connecting rods, and the middle parts of two longitudinal connecting rods are connected by horizontal connecting rods.

[0009] The substrate conveying mechanism includes a drive motor and several sets of parallel conveying rollers. The two ends of the conveying rollers are rotatably connected to the support crossbeam, and the output end of the drive motor is connected to the conveying rollers. A spreading support plate is provided between two sets of conveying rollers. The spreading support plate is positioned directly opposite the spreading mechanism, and the upper surface of the spreading support plate is flush with the conveying roller.

[0010] The spreading mechanism includes a spreading plate and a telescopic mechanism that drives the spreading plate to move up and down. The spreading plate faces the spreading support plate, and the area of ​​the spreading support plate is larger than that of the spreading plate.

[0011] Two sets of inverted L-shaped mounting plates are provided on the upper side of the spreading plate. The two sets of L-shaped mounting plates are symmetrical to each other. Each set of L-shaped mounting plates has a guide hole. A guide post is provided at the top of the coating channel. The guide post passes through the guide hole. A spring is provided between the L-shaped mounting plate and the top of the coating channel. The telescopic end of the telescopic mechanism is connected to the middle of the spreading plate.

[0012] The injection mechanism includes an injection pipe fixed to the top of the coating channel, which is connected to a hydrocolloid storage tank, and the outlet of the injection pipe is directly opposite the centerline of the substrate.

[0013] Compared with existing technologies, the advantages of this invention are that it provides a coating device for hydrocolloid dressings with a scientific design, simple operation, and good coating effect, and can be used in the dressing production process. Specifically, the material roll is fed onto the material rack, the substrate enters the coating channel, is injected by the injection mechanism, and spread by the spreading mechanism to complete the coating, and then other subsequent dressing production processes are carried out. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model (I).

[0015] Figure 2 This is a schematic diagram of the structure of this utility model (II).

[0016] Figure 3 This is a partially enlarged schematic diagram of the present invention.

[0017] Figure 4 This is a schematic diagram of the material injection and spreading state on the substrate surface in this utility model.

[0018] In the diagram: 1. Support leg; 2. Support crossbar; 3. Inverted U-shaped cover plate; 4. Longitudinal connecting rod; 5. Horizontal connecting rod; 6. Conveyor roller; 7. Drive motor; 8. Hydrocolloid storage tank; 9. Spreading mechanism; 10. Injection mechanism; 11. Substrate; 12. Injection completed state; 13. Spreading state; 14. Telescopic mechanism; 15. Spreading pressure plate; 16. L-shaped mounting plate; 17. Guide column; 18. Injection pipe. Detailed Implementation

[0019] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. "Installed," "equipped with," and "connected" can employ conventional means in the prior art, such as integral installation, snap-fit ​​installation, welding connection, adhesive connection, bolted connection, etc. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances and select suitable connection, setting, or installation methods from the existing technology.

[0021] like Figure 1-4 As shown, a coating apparatus for a hydrocolloid dressing surface gel includes a frame, a coating channel disposed on the frame, and a substrate conveying mechanism disposed within the coating channel; the inlet end of the substrate conveying mechanism is connected to a base material rack, and the outlet end of the substrate conveying mechanism is connected to a dispensing device; an injection mechanism 10 and a spreading mechanism 9 are disposed on the top surface inside the coating channel, the injection mechanism 10 being close to the inlet end of the substrate conveying mechanism, and the spreading mechanism 9 being close to the outlet end of the substrate conveying mechanism; the outlet of the injection mechanism 10 and the spreading mechanism 9 are aligned with the centerline of the substrate 11; a hydrocolloid storage tank 8 is disposed outside the coating channel, and the hydrocolloid storage tank 8 is connected to the injection mechanism 10 to supply material to the injection mechanism 10.

[0022] Specifically, the substrate conveying mechanism, the injection mechanism 10, and the spreading mechanism 9 are connected by a controller. The injection mechanism 10 injects the same amount of hydrocolloid each time, with the same interval, and synchronizes with the extension and retraction cycle of the spreading mechanism 9. The substrate conveying mechanism remains paused during the injection / spreading process so that the substrate 11 conveyed by the substrate conveying mechanism passes through the injection and spreading mechanisms 9 sequentially. The injection completion state 12 is a puddle of hydrocolloid on the surface of the substrate. The spreading state 13 is achieved by flattening the hydrocolloid by the spreading mechanism, completing the coating process. Its control circuit adopts a control circuit commonly used in the prior art. In addition, the substrate 11 and hydrocolloid in the hydrocolloid dressing are all made of materials commonly used in the art. The base material rack mainly includes unwinding equipment commonly used in the art to unwind and feed the substrate 11 roll. The packaging equipment mainly includes common equipment such as a paper unwinding device, a cutting device, and a packaging device to complete the subsequent processes of lamination, slitting, and packaging in the production of the hydrocolloid dressing.

[0023] In one embodiment, the frame includes several vertically arranged support legs 1 and two sets of horizontally arranged support crossbeams 2 at the top of the support legs 1. The substrate conveying mechanism is located between the two sets of support crossbeams 2. The upper sides of the two sets of support crossbeams 2 are connected by an inverted U-shaped cover plate 3. The inverted U-shaped cover plate 3 and the substrate conveying mechanism form a coating channel.

[0024] In one embodiment, four support legs 1 are arranged in a rectangular shape. The middle parts of two symmetrical support legs 1 are connected by longitudinal connecting rods 4, and the middle parts of the two longitudinal connecting rods 4 are connected by horizontal connecting rods 5, which fully ensures the stability of the structure.

[0025] In one embodiment, the substrate conveying mechanism includes a drive motor 7 and several sets of parallel conveying rollers 6. Both ends of the conveying rollers 6 are rotatably connected to the supporting crossbeam 2, and the output end of the drive motor 7 is drive-connected to the conveying rollers 6. A spreading support plate is provided between two sets of conveying rollers 6, and the spreading support plate is positioned directly opposite the spreading mechanism 9, with its upper surface flush with the conveying rollers 6. Specifically, a motor bracket can be provided on the lower side of the supporting crossbeam, and the drive motor is fixed to the motor bracket. The drive motor and the conveying rollers are connected via a chain and sprocket drive.

[0026] In one embodiment, the spreading mechanism 9 includes a spreading plate 15 and a telescopic mechanism 14 that drives the spreading plate 15 to move up and down. The spreading plate 15 faces the spreading support plate, and the area of ​​the spreading support plate is larger than that of the spreading plate 15, so that when the substrate passes the position of the spreading support plate, the telescopic mechanism 14 drives the spreading plate 15 to press down, causing the hydrocolloid to spread. Specifically, the telescopic mechanism can be a hydraulic telescopic rod; the side of the spreading plate that contacts the hydrocolloid is made of an anti-stick material, such as a low-polarity material; and to meet hygiene requirements, the dressing production workshop is a sterile workshop.

[0027] In one embodiment, two sets of inverted L-shaped mounting plates 16 are provided on the upper side of the spreading plate 15. The two sets of L-shaped mounting plates 16 are symmetrical to each other and each set of L-shaped mounting plates 16 has a guide hole. A guide post 17 is provided at the top of the coating channel and passes through the guide hole. A spring is provided between the L-shaped mounting plate 16 and the top of the coating channel. The telescopic end of the telescopic mechanism 14 is connected to the middle of the spreading plate 15. In the natural state, the spring is in the contracted state and the spreading plate is away from the substrate.

[0028] In one embodiment, the injection mechanism 10 includes an injection pipe 18 fixed to the top of the coating channel. The injection pipe 18 is connected to the hydrocolloid storage tank 8, and the outlet of the injection pipe 18 is directly opposite the centerline of the substrate 11. Specifically, the injection pipe 18 injects the same amount of hydrocolloid each time, with the same interval, and the injection is synchronized with the extension and retraction cycle of the telescopic mechanism 14. The control and power mechanisms required for injection all adopt existing technologies; for example, to facilitate injection, the injection pipe 18 is connected to the hydrocolloid storage tank 8 via a peristaltic pump and a pipeline. The peristaltic pump provides the delivery power, and a control valve can also be installed on the injection pipe 18. The valve and the peristaltic pump are connected via a controller.

[0029] The above embodiments can be combined with each other.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A coating apparatus for a hydrocolloid dressing surface gel, characterized in that: The system includes a frame, a coating channel mounted on the frame, and a substrate conveying mechanism within the coating channel. The inlet end of the substrate conveying mechanism is connected to a substrate material rack, and the outlet end is connected to a dispensing device. An injection mechanism and a spreading mechanism are installed on the top surface inside the coating channel. The injection mechanism is located near the inlet end of the substrate conveying mechanism, and the spreading mechanism is located near the outlet end of the substrate conveying mechanism. The outlet of the injection mechanism and the spreading mechanism are aligned with the centerline of the substrate. A hydrocolloid storage tank is installed outside the coating channel, and the hydrocolloid storage tank is connected to the injection mechanism to supply material to the injection mechanism.

2. The hydrocolloid dressing surface gel application device of claim 1, wherein: The frame includes several vertically arranged support legs and two sets of horizontal support crossbars at the top of the support legs. The substrate conveying mechanism is located between the two sets of support crossbars. The upper sides of the two sets of support crossbars are connected by an inverted U-shaped cover plate. The inverted U-shaped cover plate and the substrate conveying mechanism form a coating channel.

3. The coating apparatus for hydrocolloid dressing surface gel according to claim 2, characterized in that: The support legs are set to four in a rectangular arrangement. The middle parts of two symmetrical support legs are connected by longitudinal connecting rods, and the middle parts of two longitudinal connecting rods are connected by horizontal connecting rods.

4. The hydrocolloid dressing surface gel application apparatus of claim 3, wherein: The substrate conveying mechanism includes a drive motor and several sets of parallel conveying rollers. The two ends of the conveying rollers are rotatably connected to the support crossbeam, and the output end of the drive motor is connected to the conveying rollers. A spreading support plate is provided between two sets of conveying rollers. The spreading support plate is positioned directly opposite the spreading mechanism, and the upper surface of the spreading support plate is flush with the conveying roller.

5. The hydrocolloid dressing surface gel application device of claim 4, wherein: The spreading mechanism includes a spreading plate and a telescopic mechanism that drives the spreading plate to move up and down. The spreading plate faces the spreading support plate, and the area of ​​the spreading support plate is larger than that of the spreading plate.

6. The hydrocolloid dressing surface gel application apparatus of claim 5, wherein: Two sets of inverted L-shaped mounting plates are provided on the upper side of the spreading plate. The two sets of L-shaped mounting plates are symmetrical to each other. Each set of L-shaped mounting plates has a guide hole. A guide post is provided at the top of the coating channel. The guide post passes through the guide hole. A spring is provided between the L-shaped mounting plate and the top of the coating channel. The telescopic end of the telescopic mechanism is connected to the middle of the spreading plate.

7. The coating apparatus for hydrocolloid dressing surface gel according to claim 6, characterized in that: The injection mechanism includes an injection pipe fixed to the top of the coating channel, which is connected to a hydrocolloid storage tank, and the outlet of the injection pipe is directly opposite the centerline of the substrate.

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