Self-cleaning filling residue-free production equipment for high-viscosity medical dressing

By employing a dual cleaning mode of pressurized conveying in a buffer tank and high-temperature steam sterilization liquid, the problem of material residue and contamination in high-viscosity medical dressing filling equipment has been solved, achieving self-cleaning and stable conveying of the equipment.

CN120841429AInactive Publication Date: 2025-10-28ZHUHAI AO MEDICAL BEAUTY MEDICAL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202511230981.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-30
Publication Date
2025-10-28
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing high-viscosity medical dressing filling equipment suffers from problems such as the compact structure of the feed pump making it difficult to clean material residues, and the filling head easily accumulating material and contaminating the workbench.

Method used

The system uses a buffer tank pressurized conveying system instead of a feed pump, and combines a dual cleaning mode of high-temperature steam and disinfectant. An electric telescopic rod is used to push the inner plunger to remove residual materials, ensuring that the equipment is self-cleaning and residue-free.

Benefits of technology

It achieves stable delivery of high-viscosity dressings and equipment self-cleaning, reducing the risk of bacterial growth, lowering operational complexity, and avoiding workbench contamination.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of medical dressing production equipment, and discloses self-cleaning filling residue-free production equipment for high-viscosity medical dressings, which comprises a rack, a shell is mounted on the outer side of the rack, and a filling base is mounted on one side of the bottom of the rack; a high-pressure feeding assembly, a cleaning assembly and a filling head assembly are arranged between the rack and the shell; the high-pressure feeding assembly is arranged, specifically, a buffer tank is matched with pressurized conveying to replace a traditional conveying pump, the problem that material residues are difficult to clean due to the fact that the structure of the conveying pump is compact is solved, meanwhile, the pressure is accurately controlled through an electromagnetic pressure release valve, it is ensured that high-viscosity dressing is conveyed stably, and the conveying efficiency is improved. The filling amount error caused by pressure fluctuation is avoided, the conveying stability is guaranteed, meanwhile, the problem that a conveying pump is compact in structure and difficult to clean is solved, and the risk of bacterium breeding is reduced fundamentally.
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Description

Technical Field

[0001] This invention relates to the field of medical dressing production equipment technology, specifically to a self-cleaning, residue-free production equipment for high-viscosity medical dressings. Background Technology

[0002] High-viscosity medical dressings encompass various forms, including high-viscosity gels, ointments, hydrocolloids, and alginate pastes. These dressings hold a significant position in the medical field due to their unique physical properties and biocompatibility. Currently, the following issues remain regarding the use of filling equipment for high-viscosity medical dressings during production:

[0003] When filling high-viscosity medical dressings, a feed pump is often used for transportation. However, after the work is completed, due to the compact structure of the feed pump, material is easily left inside, making it difficult to clean and causing bacterial growth. Furthermore, due to the viscosity of high-viscosity medical dressings, during continuous filling, some of the high-viscosity dressing is easily retained in the filling head, which can easily flow downwards and drip onto the worktable, causing contamination of the worktable. Therefore, improvements are needed. Summary of the Invention

[0004] The purpose of this invention is to provide a self-cleaning, residue-free production equipment for filling high-viscosity medical dressings, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A self-cleaning, residue-free filling production device for high-viscosity medical dressings includes a frame, an outer shell mounted on the outside of the frame, a filling base mounted on one side of the bottom of the frame, and a high-pressure feeding assembly, a cleaning assembly, and a filling head assembly disposed between the frame and the outer shell.

[0007] The high-pressure feeding assembly is located on the inner side of the top of the frame. The high-pressure feeding assembly includes a buffer tank, a top cover, an electromagnetic pressure relief valve, and a drying and pressurizing dual-purpose module. The dressing is first transported into the buffer tank, and then the drying and pressurizing dual-purpose module pressurizes the buffer tank, so that the high-viscosity dressing in the buffer tank is squeezed out by the filling head assembly. After the material in the buffer tank is transported out, the electromagnetic pressure relief valve is used to release the pressure and add material to the buffer tank. The tank body is used for transportation, and no delivery pump is required.

[0008] The cleaning component is located inside the frame. The cleaning component includes a steam generator, a disinfectant tank, and a liquid pump. The steam generator produces high-temperature steam to clean and disinfect the buffer tank. At the same time, the liquid pump can be used to draw disinfectant from the disinfectant tank to disinfect and clean the buffer tank, thus performing self-cleaning on the equipment.

[0009] The filling head assembly is located on one side of the high-pressure feeding assembly. The filling head assembly includes a filling tube, an electric telescopic rod, and an inner plunger. When filling using the filling tube, during each filling operation, the electric telescopic rod pushes the inner plunger to push out the remaining high-viscosity dressing in the filling tube, preventing residual dressing from flowing and dripping.

[0010] Optionally, the high-pressure feeding assembly further includes a first solenoid valve, a first conveying pipe, a flow valve, a feed pipe, and a one-way solenoid valve. The first solenoid valve is fixedly installed at the bottom of the buffer tank, and its input end is connected to the inside of the buffer tank. One end of the first conveying pipe is fixedly installed at the output end of the first solenoid valve. The input end of the flow valve is fixedly installed at the output end of the first conveying pipe. The one-way solenoid valve is fixedly installed on one side of the top of the buffer tank, and its output end is connected to the inside of the buffer tank. One end of the feed pipe is fixedly installed at the input end of the one-way solenoid valve.

[0011] Optionally, the buffer tank is fixedly installed on the inner side of the top of the frame, the top cover is fixedly installed on the top of the buffer tank, the electromagnetic pressure relief valve is fixedly installed on the top of the top cover, and the drying and pressurizing dual-purpose module is installed on one side of the buffer tank.

[0012] Optionally, the drying and pressurizing dual-purpose module includes a dispersing nozzle, an air compressor, a heating element, and an air supply pipe. The dispersing nozzle is fixedly installed in the middle of the upper cover, the air compressor is fixedly installed on one side of the frame, the heating element is fixedly installed on the top of the upper cover, and the air supply pipe is fixedly installed between the heating element and the air compressor.

[0013] Optionally, one end of the air supply pipe is connected to the input end of the heating element, the other end of the air supply pipe is connected to the output end of the air compressor, and the output end of the heating element is connected to the input end of the dispersing nozzle.

[0014] Optionally, the cleaning assembly further includes a two-inlet-one-outlet solenoid valve, a liquid supply pipe, a connecting pipe, an annular pipe, and several nozzles. The two-inlet-one-outlet solenoid valve is installed on one side of the frame. The liquid supply pipe is fixedly installed between the two-inlet-one-outlet solenoid valve and the liquid pump. The annular pipe is fixedly installed inside the upper cover. Several nozzles are fixedly installed at the bottom of the annular pipe. The connecting pipe is fixedly installed between the two-inlet-one-outlet solenoid valve and the annular pipe.

[0015] Optionally, one end of the liquid supply pipe is connected to one input end of a two-in-one-out solenoid valve, the other input end of the two-in-one-out solenoid valve is connected to the output end of a steam generator, the other end of the liquid supply pipe is connected to the output end of a liquid pump, one end of the connecting pipe is connected to the input end of a ring pipe, and the other end of the connecting pipe is connected to the output end of the two-in-one-out solenoid valve.

[0016] Optionally, the steam generator is fixedly installed on one side of the frame, the disinfectant tank and the liquid pump are fixedly installed inside the frame, and the suction end of the liquid pump is connected to the disinfectant tank through a pipeline.

[0017] Optionally, the filling head assembly further includes a mounting bracket, a feed inlet, and a fixing cover. The mounting bracket is fixedly installed on one side of the buffer tank, the feed inlet is opened on one side of the filling tube and is connected to the output end of the flow valve, and the fixing cover is sleeved on the outside of the output shaft of the electric telescopic rod and is fixedly installed at one end of the filling tube.

[0018] Optionally, the filling tube is fixedly installed inside the mounting frame, the electric telescopic rod is fixedly installed on the top of the mounting frame, one end of the inner plunger is fixedly installed on one end of the output shaft of the electric telescopic rod, the inner plunger is slidably connected inside the filling tube, and the diameter of the inner plunger matches the inner diameter of the filling tube.

[0019] The present invention has at least the following beneficial effects:

[0020] (1) This solution replaces the traditional conveying pump by setting up a high-pressure feeding component. Specifically, it uses a buffer tank in conjunction with pressurized conveying to avoid the problem of material residue that is difficult to clean due to the compact structure of the conveying pump. At the same time, the pressure is precisely controlled by the electromagnetic pressure relief valve to ensure stable conveying of high-viscosity dressings and avoid filling errors caused by pressure fluctuations. This ensures the stability of conveying while solving the problem of difficult cleaning due to the compact structure of the conveying pump, thereby reducing the risk of bacterial growth from the root.

[0021] (2) This solution sets up a dual-purpose drying and pressurizing module. Specifically, it integrates the dual functions of pressurizing and drying. When pressurizing, it is used for medical dressing extrusion. When drying, it uses the hot air flow generated by the heating element to dry the inside of the buffer tank through the dispersion nozzle, avoiding bacterial growth caused by residual moisture after cleaning. It simplifies the equipment structure, improves the functional reuse rate, and saves equipment space.

[0022] (3) This solution uses a dual cleaning mode of high-temperature steam and disinfectant by setting up cleaning components. The steam can sterilize the inner wall of the buffer tank and its feeding pipe through the ring pipe and nozzle, while the disinfectant further enhances the disinfection effect. After use, the equipment is automatically cleaned, and the cleaning medium is automatically switched by using a two-in-one-out solenoid valve without manual intervention, reducing the complexity of operation. The cleaning process is linked with the production process and can be quickly started after the material is conveyed, making it convenient to use.

[0023] (4) This solution sets up a filling head assembly. Specifically, the inner plunger is precisely matched with the diameter of the filling tube and is driven by an electric telescopic rod to achieve reciprocating motion. After each filling, the high-viscosity dressing residue in the filling tube can be completely pushed out, avoiding material dripping and contaminating the workbench. At the same time, the sliding design of the inner plunger ensures that there is no residue on the inner wall of the filling tube, reducing the frequency of cleaning and reducing the risk of cross-contamination. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of the present invention, 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the front structure of the present invention after the outer shell has been removed;

[0027] Figure 3 This is a schematic diagram of the structure after removing the outer shell of the present invention;

[0028] Figure 4 This is a partial structural diagram of the high-pressure feeding assembly of the present invention;

[0029] Figure 5 This is a schematic diagram of the dispersion nozzle structure of the present invention;

[0030] Figure 6 This is an exploded view of a partial structure of the filling head assembly of the present invention.

[0031] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0032] 1. Frame; 2. Outer shell; 3. Filling base; 401. Buffer tank; 402. First solenoid valve; 403. First feed pipe; 404. Flow valve; 405. Top cover; 406. Solenoid pressure relief valve; 407. Drying and pressurizing dual-purpose module; 4071. Dispersing air nozzle; 4072. Air compressor; 4073. Heating element; 4074. Air supply pipe; 408. Feed pipe; 409. One-way solenoid valve; 501. Steam generator; 502. Two-in-one-out solenoid valve; 503. Disinfectant tank; 504. Liquid pump; 505. Liquid supply pipe; 506. Connecting pipe; 507. Ring pipe; 508. Nozzle; 601. Mounting bracket; 602. Filling pipe; 603. Feed inlet; 604. Electric telescopic rod; 605. Inner plunger; 606. Fixed cover. Detailed Implementation

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] Please see Figures 1-6 This invention provides a self-cleaning, residue-free filling production device for high-viscosity medical dressings, comprising a frame 1, an outer shell 2 mounted on the outside of the frame 1, a filling base 3 mounted on one side of the bottom of the frame 1, and a high-pressure feeding assembly, a cleaning assembly, and a filling head assembly disposed between the frame 1 and the outer shell 2.

[0035] The high-pressure feeding assembly is located on the inner side of the top of the frame 1. The high-pressure feeding assembly includes a buffer tank 401, a top cover 405, an electromagnetic pressure relief valve 406, and a drying and pressurizing dual-purpose module 407. The dressing is first conveyed into the buffer tank 401, and then the drying and pressurizing dual-purpose module 407 pressurizes the buffer tank 401, so that the high-viscosity dressing in the buffer tank 401 is squeezed out by the filling head assembly. After the material in the buffer tank 401 is completely conveyed, the electromagnetic pressure relief valve 406 is used to release the pressure and add material to the buffer tank 401. The tank conveying method is used, and no conveying pump is required.

[0036] In some embodiments, see Figure 2 , Figure 3 , Figure 4 The high-pressure feeding assembly also includes a first solenoid valve 402, a first conveying pipe 403, a flow valve 404, a feed pipe 408, and a one-way solenoid valve 409. The first solenoid valve 402 is fixedly installed at the bottom of the buffer tank 401, and the input end of the first solenoid valve 402 is connected to the inside of the buffer tank 401. One end of the first conveying pipe 403 is fixedly installed at the output end of the first solenoid valve 402. The input end of the flow valve 404 is fixedly installed at the output end of the first conveying pipe 403. The one-way solenoid valve 409 is fixedly installed on one side of the top of the buffer tank 401, and the output end of the one-way solenoid valve 409 is connected to the inside of the buffer tank 401. One end of the feed pipe 408 is fixedly installed at the input end of the one-way solenoid valve 409. The buffer tank 401 is fixedly installed on the inside of the top of the frame 1. The top cover 405 is fixedly installed on the top of the buffer tank 401. The electromagnetic pressure relief valve 406 is fixedly installed on the top of the top cover 405. The drying and pressurizing dual-purpose module 407 is installed on one side of the buffer tank 401.

[0037] It should be noted that in the high-pressure feeding assembly, the first solenoid valve 402 controls the material output from the buffer tank 401. When filling is required, the first solenoid valve 402 opens, and the material enters the flow valve 404 through the first conveying pipe 403. The flow valve 404 can accurately control the material conveying volume, ensuring the accuracy of each filling volume. The one-way solenoid valve 409 can prevent the backflow of material and pressure in the buffer tank 401, ensuring the one-way flow of material from the feed pipe 408 to the buffer tank 401, avoiding contamination and pressure loss caused by material backflow. In addition, the upper cover 405 is equipped with a pressure sensor to detect the pressure in the buffer tank 401 in real time.

[0038] In some embodiments, see Figure 4 , Figure 5 The drying and pressurizing dual-purpose module 407 includes a dispersing nozzle 4071, an air compressor 4072, a heating element 4073, and an air supply pipe 4074. The dispersing nozzle 4071 is fixedly installed in the middle of the upper cover 405, the air compressor 4072 is fixedly installed on one side of the frame 1, the heating element 4073 is fixedly installed on the top of the upper cover 405, and the air supply pipe 4074 is fixedly installed between the heating element 4073 and the air compressor 4072. One end of the air supply pipe 4074 is connected to the input end of the heating element 4073, and the other end of the air supply pipe 4074 is connected to the output end of the air compressor 4072. The output end of the heating element 4073 is connected to the input end of the dispersing nozzle 4071.

[0039] The heating element 4073 has a heating wire inside, and the outer shell can be connected to a pipe so that air can pass through the inside of the shell and exchange heat with the heating wire inside.

[0040] It should be noted that the air compressor 4072 provides the air source for the entire module, the heating element 4073 heats the air, and the air supply pipe 4074 is responsible for delivering the gas generated by the air compressor 4072 to the heating element 4073, realizing the gas transmission and heating conversion. When the equipment needs to pressurize and transport materials, the heating element 4073 is not activated, and the gas flows directly through the internal channel of the stainless steel shell. When the buffer tank 401 needs to be dried, the control system connects the heating wire inside the heating element 4073, and the heating wire is energized and heats up. At the same time, the gas delivered by the air compressor 4072 flows through the shell of the heating element 4073, the heating wire exchanges heat, forming a hot airflow, which is finally delivered to the dispersion nozzle 4071 through the air outlet to dry the buffer tank 401.

[0041] The cleaning component is located inside the frame 1. The cleaning component includes a steam generator 501, a disinfectant tank 503, and a liquid pump 504. The steam generator 501 generates high-temperature steam to perform high-temperature steam cleaning and disinfection on the buffer tank 401. At the same time, the liquid pump 504 can be used to draw disinfectant from the disinfectant tank 503 to disinfect and clean the buffer tank 401, thus performing self-cleaning on the equipment.

[0042] In some embodiments, see Figure 2 , Figure 3 The cleaning assembly also includes a two-inlet, one-outlet solenoid valve 502, a liquid supply pipe 505, a connecting pipe 506, an annular pipe 507, and several nozzles 508. The two-inlet, one-outlet solenoid valve 502 is mounted on one side of the frame 1. The liquid supply pipe 505 is fixedly installed between the two-inlet, one-outlet solenoid valve 502 and the liquid pump 504. The annular pipe 507 is fixedly installed inside the upper cover 405. Several nozzles 508 are fixedly installed at the bottom of the annular pipe 507. The connecting pipe 506 is fixedly installed between the two-inlet, one-outlet solenoid valve 502 and the annular pipe 507. One end of the liquid supply pipe 505 is connected to the two-inlet, one-outlet solenoid valve 502. 02 One of the input terminals is connected, the other input terminal of the two-in-one-out solenoid valve 502 is connected to the output terminal of the steam generator 501, the other end of the liquid supply pipe 505 is connected to the output terminal of the liquid pump 504, one end of the connecting pipe 506 is connected to the input terminal of the ring pipe 507, and the other end of the connecting pipe 506 is connected to the output terminal of the two-in-one-out solenoid valve 502. The steam generator 501 is fixedly installed on one side of the frame 1, the disinfectant tank 503 and the liquid pump 504 are fixedly installed inside the frame 1, and the suction end of the liquid pump 504 is connected to the disinfectant tank 503 through a pipe.

[0043] It should be noted that the two-inlet-one-outlet solenoid valve 502 can flexibly switch the high-temperature steam generated by the steam generator 501 and the disinfectant delivered by the liquid pump 504 into the annular pipe 507 according to the cleaning needs. The liquid supply pipe 505 is used to deliver the disinfectant pumped by the liquid pump 504 to the two-inlet-one-outlet solenoid valve 502, and the connecting pipe 506 delivers the cleaning medium output by the two-inlet-one-outlet solenoid valve 502 to the annular pipe 507. Furthermore, the several nozzles 508 set on the annular pipe 507 can evenly spray the cleaning medium onto the inner wall of the buffer tank 401. During the cleaning process, the valves set on the pipeline path used for filling are all in the open state.

[0044] The filling head assembly is located on one side of the high-pressure feeding assembly. The filling head assembly includes a filling tube 602, an electric telescopic rod 604, and an inner plunger 605. When filling is performed using the filling tube 602, during each filling operation, the electric telescopic rod 604 pushes the inner plunger 605 to push out the remaining high-viscosity dressing in the filling tube 602, thus preventing residual dressing from flowing and dripping.

[0045] In some embodiments, see Figure 6The filling head assembly also includes a mounting bracket 601, an inlet 603, and a fixing cover 606. The mounting bracket 601 is fixedly installed on one side of the buffer tank 401. The inlet 603 is located on one side of the filling tube 602 and is connected to the output end of the flow valve 404. The fixing cover 606 is sleeved on the outside of the output shaft of the electric telescopic rod 604 and is fixedly installed at one end of the filling tube 602. The filling tube 602 is fixedly installed inside the mounting bracket 601. The electric telescopic rod 604 is fixedly installed on the top of the mounting bracket 601. One end of the inner plunger 605 is fixedly installed at one end of the output shaft of the electric telescopic rod 604. The inner plunger 605 is slidably connected inside the filling tube 602, and the diameter of the inner plunger 605 matches the inner diameter of the filling tube 602.

[0046] It should be noted that the feed inlet 603 is the channel through which material enters the filling tube 602, allowing the material controlled by the flow valve 404 to smoothly enter the filling tube 602. During use, the inner plunger 605 can reciprocate within the filling tube 602 by being driven by the electric telescopic rod 604. After each filling, the inner plunger 605 can be used to completely push out the high-viscosity dressing residue remaining in the filling tube 602, preventing material residue from dripping into the filling tube 602 and contaminating the workbench. At the same time, the sliding design of the inner plunger 605 ensures that there is no residue on the inner wall of the filling tube 602, reducing the frequency of cleaning and lowering the risk of cross-contamination.

[0047] The workflow and principle of this invention are as follows: First, the high-viscosity medical dressing to be filled is conveyed through the feed pipe 408. At this time, the one-way solenoid valve 409 opens, and the dressing smoothly enters the buffer tank 401. When the dressing in the buffer tank 401 reaches the preset amount, the one-way solenoid valve 409 closes, completing the material filling. Then, the air compressor 4072 in the drying and pressurizing dual-purpose module 407 is started. The gas generated by the air compressor 4072 is conveyed to the heating element 4073 through the air supply pipe 4074. At this time, the heating element 4073 does not work, and then enters the buffer tank 401 through the dispersing nozzle 4071, causing the pressure in the buffer tank 401 to gradually increase. The pressure sensor mounted on the top cover 405 monitors the pressure inside the tank in real time. When the pressure reaches the set value, the first solenoid valve 402 opens, and the high-viscosity dressing in the buffer tank 401 enters the flow valve 404 through the first feed pipe 403 under pressure. The flow valve 404 precisely controls the material flow according to the preset filling volume. Then the material enters the filling pipe 602 through the feed port 603 and is output from the filling pipe 602, completing the filling operation of the filling container. After one filling is completed, the electric telescopic rod 604 is started, and its output shaft pushes the inner plunger 605 to slide downward in the filling pipe 602. Since the diameter of the inner plunger 605 matches the inner diameter of the filling pipe 602, it can push out all the high-viscosity dressing remaining in the filling pipe 602, preventing the residual dressing from dripping and contaminating the workbench. After the push is completed, the electric telescopic rod 604 drives the inner plunger 605 to reset, preparing for the next filling. When the material in the buffer tank 401 is about to be completely conveyed, the pressure sensor detects that the pressure inside the tank has dropped to the threshold. At this time, the first solenoid valve 402 closes and the solenoid pressure relief valve 406 opens to depressurize the buffer tank 401. After depressurization, the one-way solenoid valve 409 is opened again, and material is added to the buffer tank 401 through the feed pipe 408. The above filling process is repeated to achieve continuous production. When cleaning the equipment after use, first ensure that there is no material in the buffer tank 401 and that the pressure has been depressurized. At the same time, open all valves on the pipeline path used for filling in the high-pressure feeding assembly.If steam cleaning is to be performed, the steam generator 501 is started, and the two-inlet-one-outlet solenoid valve 502 is switched to the channel connected to the steam generator 501. High-temperature steam enters the annular pipe 507 through the connecting pipe 506, and is then evenly sprayed onto the inner wall of the buffer tank 401 through the nozzle 508. At the same time, the steam flows through the pipeline through the first solenoid valve 402, the first conveying pipe 403, the flow valve 404, the filling pipe 602, and other components, performing high-temperature sterilization and cleaning on the entire feeding and filling path. After high-temperature steam sterilization, the residue on the inner wall is cleaned and discharged by the high-pressure high-temperature steam. Then, the liquid pump 504 is started, and the liquid pump 504 draws disinfectant from the disinfectant tank 503 and delivers it to the two-inlet-one-outlet solenoid valve 502 through the liquid supply pipe 505. At this time, the two-inlet-one-outlet solenoid valve 502 is switched to be connected to the liquid supply pipe 505. The disinfectant enters the annular pipe 507 through the connecting pipe 506 and is sprayed onto the inner wall of the buffer tank 401 through the nozzle 508. At the same time, the disinfectant flows through the pipes to various components, disinfecting and cleaning the equipment. After cleaning, a steam rinse can be performed to wash away the disinfectant. After cleaning, the relevant valves are closed, and the heating element 4073 and air compressor 4072 of the drying and pressurizing dual-purpose module 407 are started. The heating wire in the heating element 4073 is energized and heats up. When the gas delivered by the air compressor 4072 flows through the heating element 4073, it is heated to form a hot airflow. The hot airflow enters the buffer tank 401 through the dispersion nozzle 4071 and flows through the pipes to various components, thoroughly drying the inside of the equipment to prevent residual moisture from breeding bacteria and ensuring the cleanliness of the equipment for the next use.

[0048] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0049] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A self-cleaning, residue-free production equipment for filling high-viscosity medical dressings, characterized in that, The system includes a frame (1), an outer shell (2) mounted on the outside of the frame (1), a filling base (3) mounted on one side of the bottom of the frame (1), and a high-pressure feeding assembly, a cleaning assembly, and a filling head assembly disposed between the frame (1) and the outer shell (2). The high-pressure feeding assembly is located on the inner side of the top of the frame (1). The high-pressure feeding assembly includes a buffer tank (401), a top cover (405), an electromagnetic pressure relief valve (406), and a drying and pressurizing dual-purpose module (407). The dressing is first transported into the buffer tank (401), and then the drying and pressurizing dual-purpose module (407) pressurizes the buffer tank (401), so that the high-viscosity dressing in the buffer tank (401) is squeezed out by the filling head assembly. After the material in the buffer tank (401) is transported, the electromagnetic pressure relief valve (406) is used to release the pressure and add material to the buffer tank (401). The tank body is used for transportation, and no transportation pump is required. The cleaning component is located inside the frame (1). The cleaning component includes a steam generator (501), a disinfectant tank (503), and a liquid pump (504). The steam generator (501) generates high-temperature steam to perform high-temperature steam cleaning and disinfection on the buffer tank (401). At the same time, the liquid pump (504) can be used to draw disinfectant from the disinfectant tank (503) to disinfect and clean the buffer tank (401), thus performing self-cleaning on the equipment. The filling head assembly is located on one side of the high-pressure feeding assembly. The filling head assembly includes a filling tube (602), an electric telescopic rod (604), and an inner plunger (605). When filling is performed using the filling tube (602), the electric telescopic rod (604) pushes the inner plunger (605) to push out the remaining high-viscosity dressing in the filling tube (602) during each filling operation, thus preventing residual dressing from flowing and dripping.

2. The self-cleaning, residue-free filling production equipment for high-viscosity medical dressings according to claim 1, characterized in that: The high-pressure feeding assembly also includes a first solenoid valve (402), a first conveying pipe (403), a flow valve (404), a feed pipe (408), and a one-way solenoid valve (409). The first solenoid valve (402) is fixedly installed at the bottom of the buffer tank (401), and the input end of the first solenoid valve (402) is connected to the inside of the buffer tank (401). One end of the first conveying pipe (403) is fixedly installed at the output end of the first solenoid valve (402). The input end of the flow valve (404) is fixedly installed at the output end of the first conveying pipe (403). The one-way solenoid valve (409) is fixedly installed on one side of the top of the buffer tank (401), and the output end of the one-way solenoid valve (409) is connected to the inside of the buffer tank (401). One end of the feed pipe (408) is fixedly installed at the input end of the one-way solenoid valve (409).

3. The self-cleaning, residue-free filling production equipment for high-viscosity medical dressings according to claim 1, characterized in that: The buffer tank (401) is fixedly installed on the inner side of the top of the frame (1), the top cover (405) is fixedly installed on the top of the buffer tank (401), the electromagnetic pressure relief valve (406) is fixedly installed on the top of the top cover (405), and the drying and pressurizing dual-purpose module (407) is installed on one side of the buffer tank (401).

4. The self-cleaning, residue-free filling production equipment for high-viscosity medical dressings according to claim 1, characterized in that: The drying and pressurizing dual-purpose module (407) includes a dispersion nozzle (4071), an air compressor (4072), a heating element (4073), and an air supply pipe (4074). The dispersion nozzle (4071) is fixedly installed in the middle of the upper cover (405), the air compressor (4072) is fixedly installed on one side of the frame (1), the heating element (4073) is fixedly installed on the top of the upper cover (405), and the air supply pipe (4074) is fixedly installed between the heating element (4073) and the air compressor (4072).

5. The self-cleaning, residue-free filling production equipment for high-viscosity medical dressings according to claim 4, characterized in that: One end of the gas supply pipe (4074) is connected to the input end of the heating element (4073), the other end of the gas supply pipe (4074) is connected to the output end of the air compressor (4072), and the output end of the heating element (4073) is connected to the input end of the dispersing nozzle (4071).

6. The self-cleaning, residue-free filling production equipment for high-viscosity medical dressings according to claim 1, characterized in that: The cleaning assembly also includes a two-inlet-one-outlet solenoid valve (502), a liquid supply pipe (505), a connecting pipe (506), an annular pipe (507), and several nozzles (508). The two-inlet-one-outlet solenoid valve (502) is installed on one side of the frame (1). The liquid supply pipe (505) is fixedly installed between the two-inlet-one-outlet solenoid valve (502) and the liquid pump (504). The annular pipe (507) is fixedly installed inside the upper cover (405). Several nozzles (508) are fixedly installed at the bottom of the annular pipe (507). The connecting pipe (506) is fixedly installed between the two-inlet-one-outlet solenoid valve (502) and the annular pipe (507).

7. The self-cleaning, residue-free filling production equipment for high-viscosity medical dressings according to claim 6, characterized in that: One end of the liquid supply pipe (505) is connected to one input end of the two-in-one-out solenoid valve (502), the other input end of the two-in-one-out solenoid valve (502) is connected to the output end of the steam generator (501), the other end of the liquid supply pipe (505) is connected to the output end of the liquid pump (504), one end of the connecting pipe (506) is connected to the input end of the annular pipe (507), and the other end of the connecting pipe (506) is connected to the output end of the two-in-one-out solenoid valve (502).

8. The self-cleaning, residue-free filling production equipment for high-viscosity medical dressings according to claim 1, characterized in that: The steam generator (501) is fixedly installed on one side of the frame (1), the disinfectant tank (503) and the liquid pump (504) are fixedly installed inside the frame (1), and the suction end of the liquid pump (504) is connected to the disinfectant tank (503) through a pipe.

9. The self-cleaning, residue-free filling production equipment for high-viscosity medical dressings according to claim 1, characterized in that: The filling head assembly also includes a mounting bracket (601), a feed inlet (603), and a fixing cover (606). The mounting bracket (601) is fixedly installed on one side of the buffer tank (401). The feed inlet (603) is opened on one side of the filling tube (602) and is connected to the output end of the flow valve (404). The fixing cover (606) is sleeved on the outside of the output shaft of the electric telescopic rod (604) and is fixedly installed on one end of the filling tube (602).

10. The self-cleaning, residue-free filling production equipment for high-viscosity medical dressings according to claim 9, characterized in that: The filling tube (602) is fixedly installed inside the mounting bracket (601), the electric telescopic rod (604) is fixedly installed on the top of the mounting bracket (601), one end of the inner plunger (605) is fixedly installed on one end of the output shaft of the electric telescopic rod (604), the inner plunger (605) is slidably connected inside the filling tube (602), and the diameter of the inner plunger (605) matches the inner diameter of the filling tube (602).