Tibetan medicine steam eyeshade sealing and packaging equipment based on negative pressure detection and compensation

Abstract

The invention relates to Tibetan medicine steam eyeshade sealing and packaging equipment based on negative pressure detection and compensation, and belongs to the technical field of heat sealing devices. The Tibetan medicine steam eyeshade sealing and packaging equipment based on negative pressure detection and compensation comprises a bottom plate, the upper end of the bottom plate is fixedly connected with a plurality of mounting supporting frames, the surface of one of the mounting supporting frames is fixedly connected with a servo motor, a belt pulley is rotationally connected between the adjacent mounting supporting frames, and the belt pulley is fixedly connected with the servo motor. The surface of the belt pulley is sleeved with a plurality of transmission belts; the heating block is driven to heat the heat conduction block, the heat sealing temperature deviation of the heat conduction block is compensated for + / -3 DEG C, the sealing strength is stable, the heat conduction block is inserted into the metal frame, the hot melting bonding packaging effect is formed on the two layers of films, negative pressure is formed in the cavity, the sealing effect of the packaged eyeshade is detected, and it is ensured that the heating body is isolated from the outside. Oxidation failure of the heating body is prevented, and the using effect of the steam eyeshade is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of heat sealing device technology, and in particular to a Tibetan medicine steam eye mask sealing and packaging device based on negative pressure detection and compensation. Background Technology

[0002] Tibetan medicine steam eye masks are eye care products that combine traditional Tibetan medicine ingredients with modern heating technology. Through the oxidation reaction of iron powder, they release steam at a constant temperature of around 40℃, promoting blood circulation around the eyes, accelerating the metabolism of fatigue-causing substances such as lactic acid, and relieving soreness and swelling caused by prolonged eye use. The steam gently moisturizes the surface of the eyes, relieving dryness and discomfort, making it especially suitable for people who use electronic devices for extended periods.

[0003] A search of existing Chinese patent technology reveals a "heat sealing device for producing eye masks" with publication number "CN214139201U". This device uses a heat sealing knife to cut the packaging, eliminating the need for manual cutting by workers, saving time and effort, and greatly improving the practicality of the device. However, during the sealing process, the device may experience poor sealing, which is difficult to detect visually, leading to oxidation of the heating element and affecting the effectiveness of the steam eye mask. Summary of the Invention

[0004] Therefore, it is necessary to provide a Tibetan medicine steam eye mask sealing and packaging device based on negative pressure detection and compensation to address the problem that heat sealing leads to poor sealing, causing oxidation of the heating element and affecting the effectiveness of the steam eye mask.

[0005] A Tibetan medicine steam eye mask sealing and packaging device based on negative pressure detection and compensation includes: a base plate, on the upper end of which multiple mounting supports are fixedly connected, one of which has a servo motor fixedly connected to its surface, and adjacent mounting supports are rotatably connected to pulleys, the surfaces of which are fitted with multiple transmission belts; a packaging mechanism, which is mounted on the upper end of the base plate, the surface of which contacts the surface of the transmission belts; wherein, the packaging mechanism includes a placement component mounted on the upper end of the base plate, the placement component being disposed between two pulleys, the ends of the placement component near the pulleys being fitted with abutment components, the side of the placement component near the servo motor being connected to the packaging component, and the surface of the packaging component being connected to a toggle component, the toggle component being mounted on the side of the placement component away from the servo motor;

[0006] The placement assembly includes a placement seat fixedly connected to the upper end of the base plate. The upper end of the placement seat has multiple top arc grooves. The surface of the transmission belt is slidably connected to the inner wall of the adjacent top arc groove. The upper end of the placement seat near the pulley is arc-shaped.

[0007] In one embodiment, the abutment assembly includes two connecting seats fixedly connected to the end of the placement seat. A first electric push rod is embedded in the upper end of the connecting seat. A crossbar is fixedly connected to the upper end of the first electric push rod. A rotating sleeve is rotatably connected to the surface of the crossbar. Two metal abutments are fixedly connected to the surface of the rotating sleeve near the placement seat. The two metal abutments are respectively disposed on both sides of the plurality of top arc grooves. The lower end of the metal abutments contacts the upper arc surface of the placement seat.

[0008] In one embodiment, the encapsulation assembly includes a negative pressure seat fixedly connected to the placement base near the mounting bracket. A second heat-melting film is rotatably connected to the inner wall of the negative pressure seat. A transparent frame is slidably connected to the inner side of the negative pressure seat. A top compartment is fixedly connected to the upper end of the transparent frame. A first heat-melting film is rotatably connected to the inner wall of the top compartment. A bottom roller is rotatably connected to the inner top wall of the transparent frame. A heating block is embedded in the surface of the transparent frame away from the placement assembly.

[0009] In one embodiment, the actuating assembly includes a support frame fixedly connected to the side of the placement seat away from the mounting bracket. A second electric push rod is fixedly connected to the upper end of the support frame. A connecting vertical plate is fixedly connected to the output shaft of the second electric push rod. A fixing frame is fixedly connected to the other end of the connecting vertical plate. A fixing shaft is fixedly connected between the two connecting vertical plates. Two one-way bearings are fixedly connected to the surface of the fixing shaft.

[0010] In one embodiment, a heat-conducting block is fixedly connected to the surface of the heating block, and the surface of the heat-conducting block extends into the interior of the transparent frame.

[0011] In one embodiment, the negative pressure seat has an internal compartment on the surface near the transparent frame, and the inner wall of the internal compartment is fixedly connected with a breathable mesh.

[0012] In one embodiment, a conduit is fixedly connected to the inner bottom wall of the internal compartment, and an air pump is fixedly connected to the other end of the conduit.

[0013] In one embodiment, a metal frame is fitted over the outside of the breathable mesh, and the metal frame is embedded in the surface of the negative pressure seat near the transparent frame.

[0014] In one embodiment, a plastic pressure plate is fixedly connected to the surface of the rotating sleeve away from the metal abutment, and the lower arc surface of the plastic pressure plate contacts the upper end of the transmission belt.

[0015] In one embodiment, a circular tube is fixedly connected to the outer edge of the one-way bearing, and a plurality of actuating brush plates are fixedly connected to the surface of the circular tube.

[0016] The aforementioned Tibetan medicine steam eye mask sealing and packaging equipment based on negative pressure detection and compensation heats the heat-conducting block by driving the heating block to raise the temperature. The heat-conducting block compensates for the temperature deviation of the heat sealing by ±3 degrees Celsius to ensure stable sealing strength. This allows the heat-conducting block to be inserted into the metal frame, forming a heat-melting and bonding effect on the two layers of film. The packaged eye mask is located in the cavity between the breathable mesh and the transparent frame. The air pump, in conjunction with the conduit, extracts the gas from the internal chamber, creating negative pressure inside the cavity. The sealing effect of the packaged eye mask is detected to ensure that the heating element is isolated from the outside world, preventing oxidation and failure of the heating element, and ensuring the effectiveness of the steam eye mask.

[0017] The device, through the combination of the contact and actuation components, allows the metal abutment to shift the plastic pressure plate via the rotating sleeve, pressing multiple transmission belts against the bottom wall of the top arc groove. This ensures the eye mask is stably placed on the upper surface of the placement seat, reducing vibrations during the production process and minimizing heat generation from vibrations, thus guaranteeing the effectiveness of the steam eye mask. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this invention 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 invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is an exploded view of the packaging mechanism of the present invention;

[0021] Figure 3 This is a schematic diagram of the exploded structure of the contact component of the present invention;

[0022] Figure 4 This is a schematic diagram of a partial exploded structure of the toggle assembly of the present invention;

[0023] Figure 5 This is an exploded cross-sectional view of the packaging component of the present invention;

[0024] Figure 6 This is a partial structural cross-sectional view of the packaging component of the present invention;

[0025] Figure 7 This is a partially exploded cross-sectional view of the packaging component of the present invention.

[0026] Figure label:

[0027] 100. Base plate; 200. Mounting support; 210. Servo motor; 220. Pulley; 230. Drive belt; 300. Encapsulation mechanism; 310. Placement component; 311. Placement seat; 312. Top arc groove; 320. Abutment component; 321. Connecting seat; 322. First electric push rod; 323. Crossbar; 324. Rotating sleeve; 325. Metal abutment; 326. Plastic pressure plate; 330. Actuating component; 331. Support frame; 332. Second electric push rod; 33 3. Connecting vertical plate; 334. Fixing frame; 335. Fixing shaft; 336. One-way bearing; 337. Round tube; 338. Actuating brush plate; 340. Encapsulation assembly; 341. Negative pressure seat; 342. Transparent frame; 343. Top compartment; 344. First heat melt film; 345. Bottom round roller; 346. Heating block; 347. Heat conducting block; 348. Inner compartment; 349. Breathable mesh; 3410. Conduit; 3411. Air pump; 3412. Second heat melt film; 3413. Metal frame. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] 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.

[0030] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this invention, 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," "over," and "on top" 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.

[0032] 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 invention pertains. 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.

[0033] The following is combined with Figures 1-7 The present invention describes a Tibetan medicine steam eye mask sealing and packaging device based on negative pressure detection and compensation, comprising: a base plate 100, a plurality of mounting supports 200 fixedly connected to the upper end of the base plate 100, a servo motor 210 fixedly connected to the surface of one of the mounting supports 200, a pulley 220 rotatably connected between adjacent mounting supports 200, and a plurality of transmission belts 230 sleeved on the surface of the pulley 220; and a packaging mechanism 300, which is mounted on the upper end of the base plate 100, and the surface of the packaging mechanism 300 contacts the surface of the transmission belts 230.

[0034] The packaging mechanism 300 includes a placement component 310 mounted on the upper end of the base plate 100. The placement component 310 is disposed between two pulleys 220. Each end of the placement component 310 near the pulleys 220 is equipped with an abutment component 320. A packaging component 340 is connected to the side of the placement component 310 near the servo motor 210. A toggle component 330 is connected to the surface of the packaging component 340. The toggle component 330 is mounted on the side of the placement component 310 away from the servo motor 210. The placement component 310 includes a placement seat 311 fixedly connected to the upper end of the base plate 100. The upper end of the placement seat 311 is provided with multiple top arc grooves 312. The surface of the transmission belt 230 is slidably connected to the inner wall of the adjacent top arc groove 312. The upper end of the placement seat 311 near the pulleys 220 is arc-shaped.

[0035] like Figure 1 , Figure 2 , Figure 3As shown, the abutment assembly 320 includes two connecting seats 321 fixedly connected to the ends of the placement seat 311. A first electric push rod 322 is embedded in the upper end of the connecting seat 321. A crossbar 323 is fixedly connected to the upper end of the first electric push rod 322. A rotating sleeve 324 is rotatably connected to the surface of the crossbar 323. Two metal abutments 325 are fixedly connected to the surface of the rotating sleeve 324 near the placement seat 311. The two metal abutments 325 are respectively disposed on both sides of a plurality of top arc grooves 312. The lower end of the metal abutment 325 contacts the upper arc surface of the placement seat 311. A plastic pressure plate 326 is fixedly connected to the surface of the rotating sleeve 324 away from the metal abutment 325. The lower arc surface of the plastic pressure plate 326 contacts the upper end of the transmission belt 230.

[0036] The device drives a servo motor 210 to drive a pulley 220 to drive multiple transmission belts 230 to transport the steam eye mask. When the eye mask is transported to the top of the placement seat 311, the upper end of the first electric push rod 322 can be driven to move down. The metal abutment rod 325 is made of metal for counterweight, and the plastic pressure plate 326 is made of a lighter plastic material than the metal abutment rod 325. The surface of the plastic pressure plate 326 can be coated with a Teflon layer.

[0037] The metal abutment 325 always maintains contact with the upper end of the placement seat 311. The crossbar 323 drives the rotating sleeve 324 to move down, so that the metal abutment 325 abuts against the upper arc surface of the placement seat 311. Then, the metal abutment 325 causes the plastic pressure plate 326 to shift through the rotating sleeve 324, and pushes the multiple transmission belts 230 against the bottom wall of the top arc groove 312, so that the upper plane of the eye mask placement seat 311 is flat.

[0038] like Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7 As shown, the encapsulation assembly 340 includes a negative pressure seat 341 fixedly connected to the side of the placement base 311 near the mounting bracket 200. A second hot melt film 3412 is rotatably connected to the inner wall of the negative pressure seat 341. A transparent frame 342 is slidably connected to the inner side of the negative pressure seat 341. A top compartment 343 is fixedly connected to the upper end of the transparent frame 342. A first hot melt film 344 is rotatably connected to the inner wall of the top compartment 343. A bottom roller 345 is rotatably connected to the inner top wall of the transparent frame 342. A heating block 346 is embedded in the surface of the transparent frame 342 away from the placement assembly 310.

[0039] A heat-conducting block 347 is fixedly connected to the surface of the heating block 346. The surface of the heat-conducting block 347 extends into the interior of the transparent frame 342. An internal chamber 348 is opened on the surface of the negative pressure seat 341 near the transparent frame 342. A breathable mesh 349 is fixedly connected to the inner wall of the internal chamber 348. A conduit 3410 is fixedly connected to the inner bottom wall of the internal chamber 348. An air pump 3411 is fixedly connected to the other end of the conduit 3410. A metal frame 3413 is fitted on the outside of the breathable mesh 349. The metal frame 3413 is embedded in the surface of the negative pressure seat 341 near the transparent frame 342.

[0040] When the goggles are moved to the upper end of the negative pressure seat 341, which is located between the air pump 3411 and the first heat-melting film 344, the operator can pull the two films away from the end of the placement component 310. The two films carry the goggles and move accordingly. The bottom roller 345 can keep the first heat-melting film 344 flat.

[0041] When the goggles move to the breathable mesh 349, the transparent frame 342 can move towards the placement seat 311, causing the driving heating block 346 to heat the heat-conducting block 347. When the heat-conducting block 347 deviates from the heat-sealing temperature, the heating plate temperature is dynamically adjusted by the PID algorithm, with a compensation amount of ±3 degrees Celsius, to ensure stable sealing strength, so that the heat-conducting block 347 is inserted into the metal frame 3413, forming a hot-melt bonding sealing effect for the two layers of film.

[0042] At this time, due to the thermal fusion clamping of the two membranes by the metal frame 3413 and the heat-conducting block 347, the encapsulated goggles are located in the cavity between the breathable mesh 349 and the transparent frame 342. Since the cavity is a similar closed space, the gas inside the internal chamber 348 can be extracted by driving the air pump 3411 in conjunction with the conduit 3410, so that the cavity is negatively pressured. The sealing effect of the encapsulated goggles is tested to ensure that the heating element is isolated from the outside world and to prevent iron powder from oxidizing and failing or Tibetan medicine ingredients from leaking.

[0043] like Figure 1 , Figure 2 , Figure 4 As shown, the actuating assembly 330 includes a support frame 331 fixedly connected to the side of the placement base 311 away from the mounting bracket 200. A second electric push rod 332 is fixedly connected to the upper end of the support frame 331. A connecting vertical plate 333 is fixedly connected to the output shaft of the second electric push rod 332. A fixing frame 334 is fixedly connected to the other end of the connecting vertical plate 333. A fixing shaft 335 is fixedly connected between the two connecting vertical plates 333. Two one-way bearings 336 are fixedly connected to the surface of the fixing shaft 335. A round tube 337 is fixedly connected to the outer edge of the one-way bearings 336. A plurality of actuating brush plates 338 are fixedly connected to the surface of the round tube 337.

[0044] When the goggles move to the upper plane of the placement seat 311, the second electric push rod 332 drives the connecting vertical plate 333 to move accordingly, so that the fixed frame 334 drives the top compartment 343 to move synchronously. Multiple fixed shafts 335, through the round tube 337, make multiple agitator brushes 338 in a similar rolling contact state with the upper end of the support frame 331 and the goggles. Due to the setting of the one-way bearing 336, the one-way bearing 336 can rotate when the round tube 337 moves towards the support frame 331. When the round tube 337 moves towards the encapsulation assembly 340, the one-way bearing 336 remains stationary, so that the round tube 337 drives the multiple agitator brushes 338 to move the goggles to the upper end of the negative pressure seat 341.

[0045] Working principle: This device uses a servo motor 210 and pulley 220 to drive multiple transmission belts 230 to transport steam eye masks. When the eye mask is transported above the placement seat 311, the upper end of the first electric push rod 322 moves downward, causing the crossbar 323 to move the rotating sleeve 324 downward. The metal abutment 325 abuts against the upper arc surface of the placement seat 311. The transmission belts 230 move towards the bottom wall of the top arc groove 312, and the eye mask is placed on the upper plane of the placement seat 311. The second electric push rod 332 then drives the connecting vertical plate 333 to move accordingly, and the fixing frame 33... 4. The top compartment 343 moves synchronously, and the round tube 337 drives multiple actuating brushes 338 to move the goggles to the upper end of the negative pressure seat 341. The goggles are located between the air pump 3411 and the first heat-melting film 344. The two films carry the goggles and move with them. When the goggles move to the side of the breathable net 349, the transparent frame 342 moves towards the placement seat 311, driving the heating block 346 to heat the heat-conducting block 347. The heat-conducting block 347 is inserted into the metal frame 3413 to form a heat-melting adhesive seal for the air pump 3411 and the first heat-melting film 344.

[0046] 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.

[0047] The above-described embodiments are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A Tibetan medicine steam eyecup sealing and packaging equipment based on negative pressure detection and compensation, characterized in that, The application relates to a packaging device for a plurality of products, which comprises a bottom plate (100), the upper end of the bottom plate (100) being fixedly connected with a plurality of mounting supports (200), the surface of one of the mounting supports (200) being fixedly connected with a servo motor (210), the adjacent mounting supports (200) being rotatably connected with belt pulleys (220), and the surface of the belt pulleys (220) being sleeved with a plurality of transmission belts (230); a packaging mechanism (300) is installed on the upper end of the bottom plate (100), and the surface of the packaging mechanism (300) is in contact with the surface of the transmission belt (230); wherein the packaging mechanism (300) comprises a placing assembly (310) installed on the upper end of the bottom plate (100), the placing assembly (310) is arranged between two belt pulleys (220), the end of the placing assembly (310) close to the belt pulleys (220) is provided with a resisting assembly (320), one side of the placing assembly (310) close to the servo motor (210) is connected with a packaging assembly (340), the surface of the packaging assembly (340) is connected with a pushing assembly (330), and the pushing assembly (330) is installed on the side of the placing assembly (310) away from the servo motor (210); the placing assembly (310) comprises a placing seat (311) fixedly connected with the upper end of the bottom plate (100), the upper end of the placing seat (311) is provided with a plurality of top arc grooves (312), the surface of the transmission belt (230) is slidably connected with the inner walls of the adjacent top arc grooves (312), and the upper end of the placing seat (311) close to the belt pulleys (220) is arc-shaped. The resisting assembly (320) comprises two connecting seats (321) fixedly connected with the end of the placing seat (311), the upper end of the connecting seat (321) is embeddedly installed with a first electric push rod (322), the upper end of the first electric push rod (322) is fixedly connected with a horizontal rod (323), the surface of the horizontal rod (323) is rotatably connected with a rotating sleeve (324), the surface of the rotating sleeve (324) close to the placing seat (311) is fixedly connected with two metal resisting rods (325), the two metal resisting rods (325) are arranged on the two sides of the plurality of top arc grooves (312) respectively, and the lower end of the metal resisting rod (325) is in contact with the upper end arc surface of the placing seat (311). The packaging assembly (340) comprises a negative pressure seat (341) fixedly connected with the side of the placing seat (311) close to the mounting support (200), the inner wall of the negative pressure seat (341) is rotatably connected with a second heat melting film (3412), the inner side of the negative pressure seat (341) is slidably connected with a transparent frame (342), the upper end of the transparent frame (342) is fixedly connected with a top bin (343), the inner wall of the top bin (343) is rotatably connected with a first heat melting film (344), the inner top wall of the transparent frame (342) is rotatably connected with a bottom roller (345), and the surface of the transparent frame (342) away from the placing assembly (310) is embeddedly installed with a heating block (346). ​ ​ 2. The negative pressure detection and compensation based sealing packaging equipment for Tibetan medicine steam eyecup according to claim 1, characterized in that, ​ 3. The negative pressure detection and compensation based Tibetan medicine steam eyecup sealing and packaging equipment according to claim 1, characterized in that, ​ 4. The negative pressure detection and compensation based Tibetan medicine steam eyecup sealing and packaging device according to claim 1, characterized in that, The toggle assembly (330) includes a support frame (331) fixedly connected to the placement seat (311) away from the mounting support (200) side, the upper end of the support frame (331) is fixedly connected with a second electric push rod (332), the output shaft of the second electric push rod (332) is fixedly connected with a connecting vertical plate (333), the other end of the connecting vertical plate (333) is fixedly connected with a fixed frame (334), two connecting vertical plates (333) are fixedly connected with a fixed shaft (335), the surface of the fixed shaft (335) is fixedly connected with two one-way bearings (336).

5. The negative pressure detection and compensation based Tibetan medicine steam eyecup sealing and packaging equipment according to claim 3, characterized in that, The surface of the heating block (346) is fixedly connected with a heat conduction block (347), and the surface of the heat conduction block (347) extends to the inside of the transparent frame (342).

6. The negative pressure detection and compensation based Tibetan medicine steam eyecup sealing and packaging device according to claim 3, characterized in that, The surface of the negative pressure seat (341) is provided with an internal warehouse (348) close to the transparent frame (342), and the inner wall of the internal warehouse (348) is fixedly connected with a breathable net (349).

7. The negative pressure detection and compensation based Tibetan medicine steam eyecup sealing packaging device according to claim 6, characterized in that, The inner bottom wall of the internal warehouse (348) is fixedly connected with a conduit (3410), and the other end of the conduit (3410) is fixedly connected with an air pump (3411).

8. The negative pressure detection and compensation based Tibetan medicine steam eyecup sealing and packaging device according to claim 6, characterized in that, The outer part of the breathable net (349) is provided with a metal frame (3413), and the metal frame (3413) is embedded and mounted on the surface of the negative pressure seat (341) close to the transparent frame (342).

9. The negative pressure detection and compensation based Tibetan medicine steam eyecup sealing and packaging device according to claim 2, characterized in that, The surface of the rotating sleeve (324) away from the metal resistance rod (325) is fixedly connected with a plastic pressing plate (326), and the lower end arc surface of the plastic pressing plate (326) is in contact with the upper end of the transmission belt (230).

10. The negative pressure detection and compensation based Tibetan medicine steam eyecup sealing and packaging device according to claim 4, characterized in that, The outer edge of the one-way bearing (336) is fixedly connected with a circular tube (337), and the surface of the circular tube (337) is fixedly connected with a plurality of toggle brush plates (338).

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