Coating machine for transdermal patch production

Abstract

The utility model discloses a coating machine for transdermal patch production, which comprises a working table, a scraper frame is arranged on the upper surface of the working table, guide holes are symmetrically formed in the upper surface of the scraper frame, a guide rod I is connected in the guide holes in a sliding manner, an electric telescopic rod I is arranged on the upper surface of the scraper frame, and a mounting frame is arranged at the output end of the electric telescopic rod I; a first rotating block and a second rotating block are rotationally connected to the two opposite surfaces of the inner wall of the mounting frame correspondingly, and a connecting plate is arranged between the first rotating block and the second rotating block. The angle of the scraper can be adjusted in real time through accurate transmission of the servo motor, the worm gear and the worm; a first electric telescopic rod is combined with a first guide rod, stability of height adjustment of a scraper is guaranteed, coating uniformity is remarkably improved, then a servo motor is controlled to rotate forwards and backwards, a worm is driven to rotate, the worm is meshed with a worm gear to drive a second rotating block to rotate, and the first rotating block and the second rotating block are linked through a rigid connecting plate to guarantee synchronous rotation of the first rotating block and the second rotating block. And angle deviation is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of coating machine technology, and in particular relates to a coating machine for the production of transdermal patches. Background Technology

[0002] A patch is a thin, sheet-like preparation that can be adhered to the skin to produce systemic or localized drug effects. It consists of a backing layer, a drug reservoir with or without a controlled-release membrane, an adhesive layer, and a protective layer that must be removed before use. Patches can be applied to the entire skin surface or to diseased or incomplete skin surfaces. Patches applied to intact skin surfaces and capable of delivering medication through the skin into the bloodstream are called transdermal patches. Modern transdermal patches are patches or transdermal drug delivery systems that are absorbed through the skin and, through a controlled-release mechanism, deliver the required dosage rapidly and persistently throughout the body.

[0003] The patch preparation method provided by the related technology includes a base layer coating mechanism, which coats the uncoated layer by means of blade transfer coating or extrusion coating. During the coating process, the type of blade, blade angle and blade height need to be adjusted according to different process requirements.

[0004] In response to the aforementioned technologies, the inventors believe that current coating machines used for transdermal patch production have the problem of difficulty in adjusting the blade angle and blade height during use. Therefore, they propose a coating machine for transdermal patch production. Summary of the Invention

[0005] The purpose of this invention is to provide a coating machine for the production of transdermal patches, thereby solving existing problems.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a coating machine for transdermal patch production, comprising a workbench. A scraper holder is mounted on the upper surface of the workbench. Guide holes are symmetrically formed on the upper surface of the scraper holder. A guide rod is slidably connected within each guide hole. An electric telescopic rod is mounted on the upper surface of the scraper holder. A mounting bracket is mounted at the output end of the electric telescopic rod. Rotating blocks one and two are rotatably connected to opposite surfaces of the inner wall of the mounting bracket. A connecting plate is provided between rotating blocks one and two. A sliding groove is formed on one side of each rotating block one and two. A threaded hole is formed on one side of the inner wall of the sliding groove. A locking block is slidably connected within the sliding groove. The locking block is slidably connected to opposite surfaces. A limiting hole is provided on the surface of the card block. A scraper is provided on the bottom surface of the card block. A bolt is internally threaded into the threaded hole. A rotating rod is provided on one side of the rotating block. One end of the rotating rod passes through one side of the inner wall of the mounting frame and is provided with a worm gear. A servo motor is provided on one side of the mounting frame. A worm gear is provided at the output end of the servo motor. A drying rack is provided on the upper surface of the worktable to the right of the scraper frame. An electric telescopic rod is provided on the upper surface of the drying rack. A guide rod is inserted through the upper surface of the drying rack. A drying box is provided on one side of the drying rack. A gas collection box is provided at the output end of the electric telescopic rod. Several air outlet pipes are connected to the bottom surface of the gas collection box.

[0008] Furthermore, the drying chamber is equipped with a filter screen, a cross-shaped mounting plate, a blower on the upper surface of the cross-shaped mounting plate, a heating element, and a connecting pipe connected to the upper surface of the drying chamber. One end of the connecting pipe is equipped with a telescopic tube. The bottom end of the guide rod is fixedly connected to the upper surface of the air collection box, and the free end of the telescopic tube is fixedly connected to the upper surface of the air collection box and communicates with the air collection box. The heating element is located above the blower.

[0009] Furthermore, the bottom end of the guide rod is fixedly connected to the upper surface of the mounting bracket, the worm gear meshes with the worm wheel, the bolt passes through the threaded hole and extends into the limiting hole, and is threadedly engaged with the threaded hole, a conveyor belt is provided inside the worktable, a controller is provided on one side of the worktable, the controller is electrically connected to an external power source, and the controller is electrically connected to the electric telescopic rod one, the electric telescopic rod two, the blower and the heating tube, and the heating tube has an "S" shaped circulation structure.

[0010] This utility model has the following beneficial effects:

[0011] This invention utilizes a servo motor and a worm gear for precise transmission, enabling real-time adjustment of the scraper angle. The electric telescopic rod, combined with a guide rod, ensures the stability of scraper height adjustment, significantly improving coating uniformity. The servo motor is then controlled to rotate in both directions, driving the worm gear. The worm gear meshes with the worm wheel, which in turn drives a rotating block. Rotating blocks one and two are linked by a rigid connecting plate, ensuring synchronous rotation and preventing angular deviation. This allows for angle adjustment of the locking block and scraper within the chute. Simultaneously, the electric telescopic rod can be activated to push the mounting bracket downwards or upwards, enabling rapid adjustment of the scraper's vertical height. This solves the problem of existing coating machines where scraper angle and height adjustment relies on manual operation, resulting in low efficiency and poor accuracy. This invention achieves automated adjustment of the scraper angle and vertical height through a worm gear mechanism linked to an electric telescopic rod. The bolts can then be removed from the threaded holes using tools, allowing the clips and scraper to be removed from the mounting bracket for scraper replacement. Heating is initiated by activating the heating tubes, followed by activating the blower. The blower air passes between the heating tubes, which heat the air. The air then enters the air collection box through the connecting pipe and telescopic pipe and exits through the exhaust pipe to dry the coated material.

[0012] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 A schematic diagram of the overall structure of a coating machine for producing transdermal patches;

[0015] Figure 2 A front view of a coating machine for producing transdermal patches;

[0016] Figure 3 for Figure 2 Cross-sectional view of section AA;

[0017] Figure 4 This is an exploded view of the scraper holder in this utility model.

[0018] The components represented by each number in the attached diagram are listed below: 1. Workbench; 10. Conveyor Belt; 101. Controller; 2. Scraper Holder; 20. Guide Hole; 201. Electric Telescopic Rod I; 202. Guide Rod I; 203. Mounting Bracket; 204. Rotating Block I; 205. Rotating Block II; 2050. Worm Gear; 206. Slide Groove; 207. Threaded Hole; 208. Locking Block; 209. Scraper; 210. Limiting Hole; 211. Bolt; 212. Servo Motor; 213. Worm Gear; 3. Drying Rack; 30. Electric Telescopic Rod II; 301. Guide Rod II; 302. Connecting Pipe; 303. Telescopic Pipe; 304. Air Collection Box; 305. Air Outlet Pipe; 31. Drying Chamber; 310. Filter Screen; 311. Cross Mounting Plate; 312. Blower; 313. Heating Element. Detailed Implementation

[0019] 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.

[0020] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please see Figures 1-4As shown, this utility model is a coating machine for transdermal patch production, including a workbench 1. A scraper holder 2 is provided on the upper surface of the workbench 1. Guide holes 20 are symmetrically opened on the upper surface of the scraper holder 2. A guide rod 202 is slidably connected in the guide holes 20. An electric telescopic rod 201 is provided on the upper surface of the scraper holder 2. A mounting bracket 203 is provided at the output end of the electric telescopic rod 201. Rotating blocks 204 and 205 are rotatably connected to the inner wall of the mounting bracket 203 on opposite surfaces. A connecting plate is provided between rotating blocks 204 and 205. A sliding groove 206 is provided on one side of the rotating block 205. A threaded hole 207 is provided on one side of the inner wall of the sliding groove 206. A locking block 208 is slidably connected in the sliding groove 206. Limiting holes 210 are provided on the two opposite surfaces of the locking block 208. A scraper 209 is provided on the bottom surface of the locking block 208. A bolt 211 is threadedly connected in the threaded hole 207. A rotating rod is provided on one side of the rotating block 205. One end of the rotating rod passes through one side of the inner wall of the mounting bracket 203 and is provided with a worm gear 2050. A servo motor 212 is provided on one side of the mounting bracket 203. A worm gear 213 is provided at the output end of the servo motor 212.

[0023] Furthermore, a drying rack 3 is installed on the upper surface of the workbench 1 to the right of the scraper holder 2. An electric telescopic rod 30 is installed on the upper surface of the drying rack 3. A guide rod 301 is inserted through the upper surface of the drying rack 3. A drying box 31 is installed on one side of the drying rack 3. A gas collection box 304 is installed at the output end of the electric telescopic rod 30. Several air outlet pipes 305 are connected to the bottom surface of the gas collection box 304. A filter screen 310 is installed inside the drying box 31. A cross mounting plate 311 is installed inside the drying box 31. A blower 312 is installed on the upper surface of the cross mounting plate 311. A heating tube 313 is installed inside the drying box 31. A connecting pipe 302 is connected to the upper surface of the drying box 31. A telescopic tube 303 is installed at one end of the connecting pipe 302. The bottom end of the guide rod 301 is fixedly connected to the upper surface of the gas collection box 304. The free end of the telescopic tube 303 is fixedly connected to the upper surface of the gas collection box 304 and communicates with the gas collection box 304. The heating tube 313 is located above the blower 312.

[0024] Furthermore, the bottom end of the guide rod 202 is fixedly connected to the upper surface of the mounting bracket 203, the worm 213 meshes with the worm wheel 2050, and the bolt 211 passes through the threaded hole 207 and extends into the limiting hole 210, engaging with the threaded hole 207.

[0025] Furthermore, a conveyor belt 10 is installed inside the workbench 1, and a controller 101 is installed on one side of the workbench 1. The controller 101 is electrically connected to an external power source, and the controller 101 is electrically connected to an electric telescopic rod 201, an electric telescopic rod 30, a blower 312, and a heating tube 313. The heating tube 313 has an "S"-shaped circulation structure.

[0026] It should be noted that this utility model, through the precise transmission between the servo motor 212 and the worm gear 2050 and worm 213, can adjust the scraper angle in real time. The electric telescopic rod 201 combined with the guide rod 202 ensures the stability of the scraper height adjustment and significantly improves the coating uniformity. Then, the servo motor 212 is controlled to rotate forward and backward, thereby driving the worm gear 213 to rotate. The worm gear 213 meshes with the worm gear 2050, thereby driving the rotating block 205 to rotate. The rotating block 204 and the rotating block 205 are linked by a rigid connecting plate to ensure that they rotate synchronously and avoid angle deviation. This drives the locking block 208 and the scraper 209 set in the slide 206 to adjust their angles. At the same time, the electric telescopic rod 201 can be activated to push the mounting frame 203 down or up, thereby realizing the rapid adjustment of the vertical height of the scraper 209. This solves the problem that the scraper angle and height adjustment of existing coating machines rely on manual operation, which is inefficient and has poor accuracy. This utility model achieves automated adjustment of the scraper angle and vertical height through the linkage of the worm gear 2050 and worm 213 mechanism with the electric telescopic rod 201. Then, the bolt 211 can be removed from the threaded hole 207 using a tool, allowing the retaining block 208 and scraper 209 to be removed from the mounting bracket 203 for replacement of the scraper 209. Heating is initiated by activating the heating tube 313, followed by activating the blower 312. The blower 312 passes through the heating tubes 313, heating the air, which then enters the air collection box 304 through the connecting pipe 302 and the telescopic pipe 303 and exits through the air outlet pipe 305 to dry the coated material.

[0027] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0028] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A coater for the production of transdermal patches, comprising a worktable (1), characterized in that: The upper surface of the workbench (1) is provided with a scraper holder (2), the upper surface of the scraper holder (2) is symmetrically provided with a guide hole (20), a guide rod one (202) is slidably connected in the guide hole (20), the upper surface of the scraper holder (2) is provided with an electric telescopic rod one (201), the output end of the electric telescopic rod one (201) is provided with a mounting bracket (203), the opposite surfaces of the inner wall of the mounting bracket (203) are rotatably connected with a rotating block one (204) and a rotating block two (205), respectively, a connecting plate is arranged between the rotating block one (204) and the rotating block two (205), a sliding groove (206) is formed in one side surface of the rotating block one (204) and the rotating block two (205), a threaded hole (207) is formed in one side surface of the inner wall of the sliding groove (206), a clamping block (208) is slidably connected in the sliding groove (206), limit holes (210) are formed in the opposite surfaces of the clamping block (208), a scraping knife (209) is arranged on the bottom surface of the clamping block (208), a bolt (211) is threadedly connected in the threaded hole (207), a rotating rod is arranged on one side surface of the rotating block two (205), one end of the rotating rod penetrates through one side surface of the inner wall of the mounting bracket (203) and is provided with a worm wheel (2050), a servo motor (212) is arranged on one side surface of the mounting bracket (203), and the output end of the servo motor (212) is provided with a worm (213).

2. The coating machine for producing a transdermal patch according to claim 1, wherein The upper surface of the workbench (1) is provided with an oven holder (3) on the right side of the scraper holder (2), the upper surface of the oven holder (3) is provided with an electric telescopic rod two (30), the upper surface of the oven holder (3) is provided with guide rods two (301), the one side surface of the oven holder (3) is provided with an oven box (31), and the output end of the electric telescopic rod two (30) is provided with a gas collecting box (304).

3. The coating machine for producing a transdermal patch according to claim 2, wherein The oven box (31) is provided with a filter screen (310) and a cross-shaped mounting plate (311), the upper surface of the cross-shaped mounting plate (311) is provided with a hair dryer (312), the oven box (31) is provided with a heating pipe (313), and the upper surface of the oven box (31) is communicated with a connecting pipe (302), one end of the connecting pipe (302) is provided with an elastic tube (303).

4. The coating machine for producing a transdermal patch according to claim 3, wherein The bottom end of the guide rod two (301) is fixedly connected with the upper surface of the gas collecting box (304), the free end of the elastic tube (303) is fixedly connected with the upper surface of the gas collecting box (304) and communicates with the gas collecting box (304), and the heating pipe (313) is located above the hair dryer (312).

5. The coating machine for producing a transdermal patch according to claim 1, wherein The bottom end of the guide rod one (202) is fixedly connected with the upper surface of the mounting bracket (203), the worm (213) is engaged with the worm wheel (2050), and the bolt (211) penetrates through the threaded hole (207) and extends into the limit hole (210) and threadedly cooperates with the threaded hole (207).

6. The coating machine for producing a transdermal patch according to claim 1, wherein The workbench (1) is provided with a conveyor belt (10), one side of the workbench (1) is provided with a controller (101), the controller (101) is electrically connected with an external power supply, the controller (101) is electrically connected with an electric telescopic rod (201), an electric telescopic rod (30), a hair dryer (312) and a heating pipe (313), the heating pipe (313) is a "S" type circulation structure.

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