A double-chambered ointment precise coating and covering device for a knee warmer

Abstract

The utility model relates to a kind of accurate coating and covering equipment of knee warmer double-chambered ointment, belong to ointment coating and covering equipment technical field.The accurate coating and covering equipment of knee warmer double-chambered ointment, including fixed frame, unwinding wheel and winding wheel, the unwinding wheel and winding wheel are fixedly installed in the side of fixed frame, the side fixed mounting of fixed frame has coating conveying belt, double-chambered coating mechanism, for the double-chambered coating mechanism of the even coating of ointment to the side of coating conveying belt, wherein, the double-chambered coating mechanism includes fixed installation in the side of fixed frame spray medicine machine;Double-chambered coating mechanism is cooperated with coating component by spray medicine machine, and two kinds of ointment are respectively from two chambers staggered and sprayed on the surface of base cloth and are evenly spread, avoid the uneven thickness caused by traditional superposition coating, covering component is synchronously covered after coating is completed and cuts ointment layer and protective film, reduces process transfer and improves production rhythm.

Description

Technical Field

[0001] This utility model relates to the technical field of ointment coating and lamination equipment, and in particular to a precise coating and lamination device for a double-chamber knee warming patch ointment. Background Technology

[0002] Currently, most plaster coating equipment on the market used for producing plaster products such as knee warmers, pain relief patches, and transdermal patches employs single-cavity or multi-cavity separate coating methods, meaning that multiple plasters are sequentially coated onto the same base fabric. While common dual-cavity coating devices can store plasters with different ingredients separately and supply them via independent pumps,

[0003] While existing dual-cavity coating devices can store ointments of different components separately and supply them via independent pumps, their nozzles are typically arranged sequentially along the same straight line or at the same position. The two ointments are often applied in a stacked manner, followed by smoothing with rollers or a scraper. This method easily leads to problems such as uneven thickness, insufficient mixing, or surface bubbles in the same area during coating, thus affecting the adhesion of the ointment to the base fabric and the consistency of the finished product. Utility Model Content

[0004] Therefore, it is necessary to provide a precise coating and lamination device for knee warming patches, which addresses the problem that existing dual-chamber coating devices can store different components and supply materials independently, but the nozzles are mostly arranged sequentially along the same position. The two ointments are coated and smoothed one after another, which can easily cause uneven thickness, insufficient mixing or air bubbles, affecting the adhesion of the base fabric and the consistency of the finished product.

[0005] A device for precise coating and lamination of a double-chamber knee warming patch includes a fixed frame, an unwinding roller, and a rewinding roller. The unwinding roller and the rewinding roller are both fixedly installed on one side of the fixed frame, and a coating conveyor belt is fixedly installed on one side of the fixed frame.

[0006] A dual-cavity coating mechanism is used to uniformly coat ointment in two cavities. The dual-cavity coating mechanism is located on one side of the coating conveyor belt.

[0007] The dual-cavity coating mechanism includes a sprayer fixedly installed on one side of a fixed frame, a coating component on one side of the sprayer, and a laminating component that moves the coating component.

[0008] In one embodiment, the coating assembly includes two spraying chambers fixedly installed on one side of the sprayer. The output ends of the two spraying chambers are respectively provided with a plurality of first discharge holes and second discharge holes, and the plurality of first discharge holes and second discharge holes are arranged alternately.

[0009] In one embodiment, the sprayer is located at the top of the coating conveyor belt, which is located between the unwinding and rewinding reels, and a take-up conveyor belt is provided on one side of the coating conveyor belt, which is located at the bottom of the coating conveyor belt.

[0010] In one embodiment, a fixed chamber is fixedly installed on one side of the fixed frame. The fixed chamber is located on one side of the two spraying chambers. An electric push rod is provided inside the fixed chamber. The conveying end of the electric push rod extends out of the bottom of the fixed chamber and is fixedly connected to a coating block. A limit sleeve is provided on the outside of the coating block. A telescopic sleeve is fixedly installed at the bottom of the limit sleeve. A spring is fixedly installed at the top of the limit sleeve. The other end of the spring is rotatably connected to the output end of the electric push rod.

[0011] In one embodiment, the coating block is configured as a frustum shape, and the bottom of the coating block has multiple friction grooves.

[0012] In one embodiment, a first motor is fixedly mounted on the top of the fixed chamber, and the output end of the first motor extends into the interior of the fixed chamber and is fixedly connected to one side of the electric push rod.

[0013] In one embodiment, two feeding wheels are provided on one side of the coating conveyor belt, and both feeding wheels are located on one side of the spraying chamber.

[0014] In one embodiment, a second motor is fixedly installed on one side of the coating conveyor belt, and a bidirectional screw is fixedly installed at the output end of the second motor. The bidirectional screw passes through one side of the two feeding wheels and is threadedly connected to one side of the two feeding wheels.

[0015] In one embodiment, the laminating assembly includes a feeding wheel fixedly mounted on one side of a fixed frame, a cutting wheel fixedly mounted on one side of the coating conveyor belt, a plurality of cutters fixedly mounted on the surface of the cutting wheel, and the cutting wheel being located at the bottom of the feeding wheel.

[0016] In one embodiment, the cutting wheel is located on one side of the winding wheel, which is located on top of the take-up conveyor belt.

[0017] Beneficial effects

[0018] The aforementioned dual-chamber ointment precision coating and lamination equipment for knee warming patches uses a dual-chamber coating mechanism that works in conjunction with a sprayer and coating components to spray two types of ointment onto the base fabric surface from two chambers in a staggered manner and spread them evenly, avoiding uneven thickness, insufficient mixing, or air bubbles caused by traditional superimposed coating. After coating is completed, the lamination component simultaneously laminates and cuts the ointment layer and protective film, reducing process transfers and increasing production cycle time.

[0019] The feeding wheel continuously feeds out the cover film, which is simultaneously laminated with the base fabric that has been sprayed with ointment on the coating conveyor belt; the cutting wheel and its multiple cutters simultaneously cut the laminated base fabric and cover film to form ointment patches of the same size; the winding wheel simultaneously winds up the waste material from the edges of the cut cover film, thus achieving the separation and collection of finished products and waste materials. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the dual-cavity coating mechanism of this utility model;

[0023] Figure 3 This is a schematic diagram of the spraying chamber and fixed compartment structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the fixed compartment structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the coating block and limiting sleeve structure of this utility model;

[0026] Figure 6 This is a schematic diagram of the composite component structure of this utility model.

[0027] Figure label:

[0028] 100. Fixed frame; 110. Unwinding reel; 120. Rewinding reel; 200. Coating conveyor belt; 210. Receiving conveyor belt; 300. Dual-cavity coating mechanism; 310. Sprayer; 320. Coating assembly; 321. Spraying chamber; 322. First discharge port; 323. Second discharge port; 324. Fixed chamber; 325. Coating block; 326. Electric push rod; 327. First motor; 328. Limiting sleeve; 329. Telescopic sleeve; 3210. Spring; 3211. Feeding wheel; 3212. Bidirectional screw; 3213. Second motor; 330. Laminating assembly; 331. Unwinding reel; 332. Cutting wheel; 333. Cutter. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this specification belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0034] The following is combined with Figures 1-6 This invention describes a device for precise application and lamination of a dual-chamber ointment for knee warming patches.

[0035] In one embodiment, a precise coating and lamination device for a dual-chamber ointment for knee warming includes a fixed frame 100, an unwinding roller 110, and a winding roller 120. The unwinding roller 110 and the winding roller 120 are both fixedly installed on one side of the fixed frame 100, and a coating conveyor belt 200 is fixedly installed on one side of the fixed frame 100. A dual-chamber coating mechanism 300 is provided on one side of the coating conveyor belt 200 for uniformly coating the ointment in both chambers. The dual-chamber coating mechanism 300 includes a sprayer 310 fixedly installed on one side of the fixed frame 100, a coating assembly 320 is provided on one side of the sprayer 310, and a lamination assembly 330 is provided for the movement of the coating assembly 320.

[0036] In this embodiment, the dual-cavity coating mechanism 300 uses a sprayer 310 and a coating component 320 to spray two ointments from two chambers and alternately spray them onto the base fabric surface with staggered nozzles. The coating component 320 then smooths and evenly spreads the ointment, avoiding problems such as uneven thickness, insufficient mixing, or surface bubbles that are easily caused by traditional sequential superposition coating. The lamination component 330 can simultaneously laminate and cut the ointment layer and the protective film after coating, reducing inter-process transfer and improving production cycle time.

[0037] It should be noted that existing ointment coating and laminating equipment typically includes basic units such as a fixed frame 100, an unwinding roller 110, a rewinding roller 120, a conveyor belt, an ointment feeding pump, a spray nozzle, a scraping or smoothing mechanism, and a laminating and cutting mechanism, which can complete processes such as base fabric conveying, ointment coating, smoothing, laminating, and slicing.

[0038] The coating component 320 only performs staggered spreading and homogenization of the ointment sprayed by the sprayer 310 without changing the conveying path and speed of the base fabric. The laminating component 330 performs simultaneous lamination and cutting of the ointment layer and the protective film after the coating process is completed. Its installation position and operation are completed at the existing station of the coating conveyor belt 200. There is no mechanical interference between it and the existing transmission, feeding, and winding units, and it will not increase additional resistance or offset. It can be seamlessly integrated with the existing equipment's conveying, feeding, and cutting processes, thereby achieving precise staggered coating and lamination of the dual-cavity ointment without affecting normal use.

[0039] It should be noted that the sprayer 310 includes two independent storage chambers for storing different ointments, an independent feed pump or metering pump connected to the storage chambers, an independent conveying pipeline, and a nozzle component connected to the conveying pipeline, for spraying different ointments alternately onto the surface of the base fabric.

[0040] It should be noted that both the unwinding roller 110 and the take-up roller 120 are electrically driven. The unwinding roller 110 has a motor or geared motor inside and is coaxially connected to the unwinding shaft. Under the drive of the control system, it can automatically adjust the unwinding speed and tension to achieve a continuous and stable supply of the base fabric. The take-up roller 120 also has a built-in motor or geared motor and is coaxially connected to the take-up shaft. It can synchronously adjust the take-up speed and winding tension. After coating, laminating, and cutting are completed, it automatically winds up the edge waste or protective film, so that the whole machine maintains constant tension during continuous operation, avoids the base fabric from loosening or wrinkling, and improves the degree of automation and stability of production.

[0041] like Figure 3 , Figure 4 and Figure 5 As shown, the coating assembly 320 includes two spraying chambers 321 fixedly installed on one side of the sprayer 310. The output ends of the two spraying chambers 321 are respectively provided with a plurality of first discharge holes 322 and second discharge holes 323, and the plurality of first discharge holes 322 and second discharge holes 323 are arranged alternately.

[0042] In this embodiment, by arranging the multiple first discharge holes 322 and multiple second discharge holes 323 of the two spraying chambers 321 in an alternating manner, different ointments from the two spraying chambers 321 can form alternating strips or dot arrays on the surface of the coating conveyor belt 200, and be fully spread and mixed in the subsequent smoothing process of the coating assembly 320 and the lamination process of the lamination assembly 330, thereby avoiding the local unevenness in thickness caused by traditional sequential superposition coating.

[0043] The sprayer 310 is located at the top of the coating conveyor belt 200, which is located between the unwinding reel 110 and the take-up reel 120. A take-up conveyor belt 210 is provided on one side of the coating conveyor belt 200, and the take-up conveyor belt 210 is located at the bottom of the coating conveyor belt 200.

[0044] In this embodiment, the coating conveyor belt 200 is arranged between the unwinding reel 110 and the winding reel 120, so that the unwinding reel 110 can continuously supply the base fabric and the winding reel 120 can promptly wind up the waste material after coating and cutting. The receiving conveyor belt 210 is located at the bottom of the coating conveyor belt 200, so that the cut or laminated ointment patches fall onto the surface of the receiving conveyor belt 210 for receiving.

[0045] A fixed chamber 324 is fixedly installed on one side of the fixed frame 100. The fixed chamber 324 is located on one side of the two spraying chambers 321. An electric push rod 326 is installed inside the fixed chamber 324. The conveying end of the electric push rod 326 extends out of the bottom of the fixed chamber 324 and is fixedly connected to a coating block 325. A limit sleeve 328 is provided on the outside of the coating block 325. A telescopic sleeve 329 is fixedly installed at the bottom of the limit sleeve 328. A spring 3210 is fixedly installed at the top of the limit sleeve 328. The other end of the spring 3210 is rotatably connected to the output end of the electric push rod 326.

[0046] In this embodiment, the coating conveyor belt 200 is arranged between the unwinding reel 110 and the winding reel 120, so that the unwinding reel 110 can continuously supply the base fabric and the winding reel 120 can promptly wind up the coating and cut waste materials; the receiving conveyor belt 210 is located at the bottom of the coating conveyor belt 200, so that the cut or laminated ointment can fall directly onto the surface of the receiving conveyor belt 210 and be transported to the designated collection position, realizing the separate collection of finished products and waste materials; during the coating process, the electric push rod 326 drives the coating block 325 to move down along the fixed chamber 324, contact the ointment sprayed from the two spraying chambers 321 and perform extrusion coating, while the limiting sleeve 328 limits the ointment squeezed by the coating block 325 to prevent the ointment from spreading too much on the coating conveyor belt 200, ensuring the uniform thickness of the ointment layer and improving the adhesion of the ointment to the base fabric and the consistency of the finished product.

[0047] The coating block 325 is shaped like a frustum, and the bottom of the coating block 325 has multiple friction grooves.

[0048] In this embodiment, by setting the coating block 325 to a frustum shape, the coating block 325 can form a progressive contact surface when it contacts the base fabric surface under the drive of the electric push rod 326, reducing edge stress concentration and ensuring smooth spread of the ointment layer. By opening multiple friction grooves at the bottom of the coating block 325, the coating block 325 generates a guiding and dispersing effect when squeezing the ointment, thereby enhancing the uniformity of the ointment spread on the coating conveyor belt 200.

[0049] A first motor 327 is fixedly installed on the top of the fixed chamber 324. The output end of the first motor 327 extends into the interior of the fixed chamber 324 and is fixedly connected to one side of the electric push rod 326.

[0050] In this embodiment, the first motor 327 drives the electric push rod 326 to rotate, so that the coating block 325, which is fixedly connected to the electric push rod 326, can rotate synchronously when it squeezes and coats the ointment sprayed from the two spraying chambers 321. This forms a uniform coating trajectory on the base fabric surface, enhances the spreading and mixing effect of the ointment, avoids local uneven thickness, and improves the smoothness and adhesion of the ointment layer.

[0051] Two feeding wheels 3211 are provided on one side of the coating conveyor belt 200, and both feeding wheels 3211 are located on one side of the spraying chamber 321.

[0052] In this embodiment, by setting two feeding wheels 3211 on one side of the coating conveyor belt 200 and arranging the two feeding wheels 3211 on one side of the spraying chamber 321, the base fabric can be stably guided and tensioned under the action of the two feeding wheels 3211 before passing through the spraying chamber 321 for coating, ensuring that the base fabric runs accurately on the coating conveyor belt 200 and preventing the base fabric from deviating or loosening.

[0053] A second motor 3213 is fixedly installed on one side of the coating conveyor belt 200. A bidirectional screw 3212 is fixedly installed at the output end of the second motor 3213. The bidirectional screw 3212 passes through one side of the two feeding wheels 3211 and is threadedly connected to one side of the two feeding wheels 3211.

[0054] In this embodiment, the second motor 3213 drives the bidirectional screw 3212 to rotate, causing the bidirectional screw 3212 to drive the two feeding wheels 3211 to move closer or further away synchronously along the thread direction, thereby continuously adjusting the distance between the two feeding wheels 3211 to adapt to base fabrics with different widths or different tension requirements.

[0055] like Figure 2 , Figure 3 and Figure 6 As shown, the laminating assembly 330 includes a feeding wheel 331 fixedly installed on one side of the fixed frame 100, a cutting wheel 332 fixedly installed on one side of the coating conveyor belt 200, and a plurality of cutters 333 fixedly installed on the surface of the cutting wheel 332. The cutting wheel 332 is located at the bottom of the feeding wheel 331.

[0056] In this embodiment, the covering film is continuously released by the feeding wheel 331, so that the covering film and the base fabric sprayed with ointment on the coating conveyor belt 200 are synchronously covered. Then, the base fabric and the covering film are synchronously cut by the cutting wheel 332 located below the feeding wheel 331 and multiple cutters 333 fixedly installed on its surface to obtain ointment patches of the same size. At the same time, the winding wheel 120 synchronously winds up the waste material of the covering film generated by cutting, so as to realize the separation and collection of finished products and waste materials.

[0057] It should be noted that the cutting wheel 332 is an electrically driven rotary cutting component, which can be equipped with an internal motor or connected to an external power source. Multiple cutters 333 are fixedly mounted on the surface of the cutting wheel 332. These cutters 333 can be evenly arranged along the circumference of the cutting wheel 332 and can be replaced or adjusted according to different plaster patch specifications. During rotation, the cutting wheel 332 can simultaneously cut the covering film released by the feeding wheel 331 and the base fabric on the coating conveyor belt 200 to form plaster patches of uniform size.

[0058] The cutting wheel 332 is located on one side of the winding wheel 120, which is located on top of the take-up conveyor belt 210.

[0059] In this embodiment, by arranging the cutting wheel 332 on one side of the winding wheel 120, the cutting wheel 332 can cut the base fabric and the cover film immediately after lamination to form medicated plasters of uniform specifications. By arranging the winding wheel 120 on top of the receiving conveyor belt 210, the winding wheel 120 can simultaneously wind up the waste material from the edge of the cover film generated during the cutting process. The cut medicated plasters fall directly into the receiving conveyor belt 210 located below the winding wheel 120 and are transported to the designated collection position, thereby realizing the automatic separation and collection of finished products and waste materials.

[0060] Working principle: During use, the unwinding roller 110 continuously unwinds the base fabric and feeds it into the sprayer 310 via the coating conveyor belt 200. Two spraying chambers 321 spray two types of ointment onto the base fabric surface alternately through multiple first outlet holes 322 and multiple second outlet holes 323. The coating block 325 moves downward under the drive of the electric push rod 326 and rotates synchronously under the drive of the first motor 327, squeezing and smoothing the alternately sprayed ointment. Simultaneously, the limiting sleeve 328 and the telescopic sleeve 329, in conjunction with the spring 3210, limit the coating pressure and the lateral diffusion of the ointment, ensuring a consistent ointment layer thickness. The feeding roller 3211, under the action of the bidirectional screw 3212 and the second motor 3213, automatically adjusts its spacing according to the width of the base fabric, achieving stable guidance and tension. Subsequently, the feeding roller 331 releases the covering film and simultaneously coats it with the base fabric coated with ointment. The cutting roller 332 and its cutter 333 immediately cut the ointment into ointment patches of uniform size after coating. The winding roller 120 simultaneously winds up the waste material from the edges of the cutting covering film. The cut ointment patches fall directly into the receiving conveyor belt 210 located below them and are transported to the designated collection position.

[0061] It should be noted that the unwinding reel, winding reel, cutting reel, and sprayer mentioned above are all components with relatively mature existing technologies. Specific models can be selected according to actual needs. At the same time, the unwinding reel, winding reel, cutting reel, and sprayer can be powered by built-in power supply or by mains power. The specific power supply method should be selected according to the situation, and will not be elaborated here.

[0062] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A double-chambered ointment precise coating and covering device for a knee warmer, comprising a fixing frame (100), an unwinding wheel (110) and a winding wheel (120), characterized in that, The unwinding reel (110) and the winding reel (120) are both fixedly installed on one side of the fixed frame (100), and a coating conveyor belt (200) is fixedly installed on one side of the fixed frame (100). A dual-cavity coating mechanism (300) for uniformly coating ointment in two cavities is provided on one side of the coating conveyor belt (200); The dual-cavity coating mechanism (300) includes a sprayer (310) fixedly installed on one side of a fixed frame (100), a coating assembly (320) is provided on one side of the sprayer (310), and a coating assembly (330) is provided for the movement of the coating assembly (320).

2. The double-chambered ointment precise coating and covering device for the knee warmer according to claim 1, characterized in that, The coating assembly (320) includes two spraying chambers (321) fixedly installed on one side of the sprayer (310). The output ends of the two spraying chambers (321) are respectively provided with a plurality of first discharge holes (322) and second discharge holes (323), and the plurality of first discharge holes (322) and second discharge holes (323) are arranged alternately.

3. The double-chambered ointment precise coating and covering device for the knee warmer according to claim 1, characterized in that, The sprayer (310) is located at the top of the coating conveyor belt (200), which is located between the unwinding reel (110) and the winding reel (120). A receiving conveyor belt (210) is provided on one side of the coating conveyor belt (200), which is located at the bottom of the coating conveyor belt (200).

4. The double-chambered ointment precise coating and covering device for the knee warmer patch according to claim 1, characterized in that, A fixed chamber (324) is fixedly installed on one side of the fixed frame (100). The fixed chamber (324) is located on one side of the two spraying chambers (321). An electric push rod (326) is provided inside the fixed chamber (324). The conveying end of the electric push rod (326) extends out of the bottom of the fixed chamber (324) and is fixedly connected to a coating block (325). A limiting sleeve (328) is provided on the outside of the coating block (325). A telescopic sleeve (329) is fixedly installed at the bottom of the limiting sleeve (328). A spring (3210) is fixedly installed at the top of the limiting sleeve (328). The other end of the spring (3210) is rotatably connected to the output end of the electric push rod (326).

5. The double-chambered ointment precise coating and covering device for the knee-warming patch according to claim 4, characterized in that, The coating block (325) is configured as a frustum shape, and the bottom of the coating block (325) is provided with multiple friction grooves.

6. The double-chambered ointment precise coating and covering device for the knee warmer according to claim 4, characterized in that, A first motor (327) is fixedly installed on the top of the fixed chamber (324). The output end of the first motor (327) extends into the interior of the fixed chamber (324) and is fixedly connected to one side of the electric push rod (326).

7. The double-chambered ointment precise coating and covering device for the knee warmer according to claim 1, characterized in that, Two feeding wheels (3211) are provided on one side of the coating conveyor belt (200), and both feeding wheels (3211) are located on one side of the spraying chamber (321).

8. The double-chambered ointment precise coating and covering device for the knee warmer according to claim 1, characterized in that, A second motor (3213) is fixedly installed on one side of the coating conveyor belt (200), and a bidirectional screw (3212) is fixedly installed at the output end of the second motor (3213). The bidirectional screw (3212) passes through one side of the two feeding wheels (3211) and is threadedly connected to one side of the two feeding wheels (3211).

9. The double-chambered ointment precise coating and covering device for the knee warmer according to claim 1, characterized in that, The laminating assembly (330) includes a feeding wheel (331) fixedly installed on one side of the fixed frame (100), a cutting wheel (332) fixedly installed on one side of the coating conveyor belt (200), a plurality of cutters (333) fixedly installed on the surface of the cutting wheel (332), and the cutting wheel (332) is located at the bottom of the feeding wheel (331).

10. The double-chambered ointment precise coating and covering device for the knee warmer according to claim 9, characterized in that, The cutting wheel (332) is located on one side of the winding wheel (120), which is located on top of the receiving conveyor belt (210).

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