Mask machine

Abstract

The present invention discloses a mask machine, and relates to the technical field of mask production. It includes an installation bottom shell, a storage mechanism and a cutting mechanism are respectively installed at the bottom of the installation bottom shell, the storage mechanism is located on the back of the cutting mechanism, and a protective cover that can move up and down is slidably connected to the top of the installation bottom shell, and a replacement core is filled inside the storage mechanism, and the replacement core includes a rolled mask body, and the mask body is divided into an inner and outer surface, and elastic ropes are respectively arranged on both sides of the inner surface of the mask body. The present invention changes the production process of traditional mask production by arranging a replacement core, and only needs to complete the production of the replacement core without pre-hot pressing and cutting the mask, and the overall packaging, and the user can hot press and cut according to the use needs, so as to shorten the entire mask production process, thereby reducing the demand for equipment and workers in production, simplifying the entire mask production process in a way of simplifying the product, thereby improving production efficiency and reducing the investment cost of labor and equipment.

Description

Technical Field

[0001] The invention relates to the technical field of mask production, in particular to a mask machine. Background Art

[0002] Mask production line equipment can be mainly divided into two modes: semi-automatic production and fully automated production. Taking flat masks as an example, the mask body machine (sheeting machine) is responsible for feeding raw materials, inserting nose wires, sealing edges, and cutting into semi-finished products; the mask dispensing machine is responsible for dispensing semi-finished products; after receiving the semi-finished products, the outer ear strap mask machine ultrasonically fuses the elastic band to the two outer sides of the mask body to obtain the finished product. The semi-automatic mask production line requires multiple people to operate. In addition to one person responsible for one machine, the other workers are mainly responsible for packaging and handling. However, when there is a lack of mask dispensing machines in the production line, the production line has a higher demand for labor, and manual series connection is adopted. Workers are required to put the semi-finished mask pieces one by one into the outer ear strap mask machine for the next step of processing. Traditional automated production lines require a lot of manpower participation and are inefficient.

[0003] In addition, the masks produced by conventional production methods are of a single size and cannot meet the size of children, so consumers often need to purchase them separately, which increases the cost of use. Summary of the invention

[0004] The object of the present invention is to provide a mask machine to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a mask machine, comprising an installation bottom shell, a storage mechanism and a cutting mechanism are respectively installed at the bottom of the installation bottom shell, the storage mechanism is located on the back of the cutting mechanism, and a protective cover that can be moved up and down is slidably connected to the top of the installation bottom shell, and a replacement core is filled inside the storage mechanism, and the replacement core comprises a rolled mask body, the mask body is divided into an inner and outer surface, and elastic ropes are respectively arranged on both sides of the inner surface of the mask body, and both ends of the elastic rope are fixedly connected to the mask body, the cutting mechanism comprises a connecting plate and a rotating shaft, and both ends of the rotating shaft are rotatably connected to the side wall of the installation bottom shell, a guide mask roller is fixedly connected to the middle of the outer wall of the rotating shaft, and ratchets are respectively fixedly connected to the positions of the outer wall of the rotating shaft on both sides of the guide mask roller, The outer wall of the pawl is sleeved with a ratchet gear, and the top of the connecting plate is respectively fixedly connected with a cutting and hot pressing platform and a guide cover platform, the guide cover platform is located on the back of the cutting and hot pressing platform, and the guide cover roller is located above the guide cover platform, and the top of the connecting plate is located at the positions on both sides of the cutting and hot pressing platform and is respectively fixedly connected with limiting columns, and an auxiliary spring is sleeved on the outer wall of the limiting column, and the top of the auxiliary spring is fixedly connected with a mounting plate, and a cutting knife is fixedly connected to the center of the bottom of the mounting plate, and hot pressing strips are respectively installed at the front and back of the cutting knife at the bottom of the mounting plate, and vertically arranged racks are respectively fixedly connected on both sides of the back of the mounting plate, and the racks are meshed with the ratchet gear, and a cutting groove is fixedly opened at the position of the top of the cutting and hot pressing platform at the bottom of the cutting knife, and the top of the rack is fixedly connected to the protective cover.

[0006] Furthermore, the storage mechanism includes a lower rotary cover, both ends of which are fixedly connected with fixed shafts, the fixed shafts are rotatably connected to the inner walls of the mounting bottom shell on both sides, the lower rotary cover is rotatably connected with an upper rotary cover, arc-shaped sliding openings are provided on both sides of the lower rotary cover above the fixed shafts, and sliding columns are fixedly connected on both sides of the upper rotary cover, the sliding columns are equipped with the arc-shaped sliding openings, and the sliding columns slide inside the arc-shaped sliding openings.

[0007] Furthermore, the mounting bottom shell includes a bottom box, a hidden cover is fixedly connected to the top of the bottom box, a cover outlet is opened on the front of the hidden cover, the cutting and hot pressing table is located behind the cover outlet, the inner walls on both sides of the hidden cover are fixedly connected to the first axis frame, the inner walls on both sides of the hidden cover are located behind the first axis frame and are respectively fixedly connected to the second axis frame, the rotating shaft is rotatably connected to the inside of the first axis frame, the fixed shaft is rotatably connected to the inside of the second axis frame, and return springs are respectively fixedly connected to the two sides of the top of the bottom box, and the top of the return spring is fixedly connected to the protective cover.

[0008] Furthermore, the first shaft frame and the second shaft frame are both U-shaped structures, and the outer wall of the rotating shaft and the outer wall of the fixed shaft are in sliding contact with the inner wall of the first shaft frame and the second shaft frame respectively.

[0009] Furthermore, an L-shaped lock is provided on the side of the hidden cover, and the protective cover includes a protective cover, an inner wall of the protective cover is fixedly connected to the return spring, the protective cover surrounds the outer wall of the hidden cover, the height of the inner wall of the protective cover is greater than the height of the hidden cover, a push button is slidably connected to the side of the protective cover, and the side of the push button passes through the protective cover and is fixedly connected to a limiting block, the limiting block is adapted to the lock to achieve limiting when the protective cover covers the hidden cover, and the rack is fixed on the inner wall of the front side of the protective cover.

[0010] Furthermore, a sliding cover is slidably connected to the top of the protective cover, and a Braille protrusion is arranged on the side of the push button.

[0011] Furthermore, the inner wall of the ratchet gear is provided with a ratchet tooth adapted to the pawl. When the rack moves upward, the ratchet gear rotates through the cooperation between the pawl and the ratchet tooth, and the ratchet tooth drives the pawl to rotate, thereby controlling the rotation of the rotating shaft. When the rack moves downward, the ratchet tooth cannot drive the pawl to rotate.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The mask machine changes the production process of traditional mask production by setting a replacement core. It only needs to complete the production of the replacement core without pre-heat pressing and cutting the mask, and the whole mask is packaged. Users can heat press and cut according to their needs, thereby shortening the entire mask production process. It can reduce the demand for equipment and workers in production, simplify the entire mask production process by simplifying the product, and thus improve production efficiency and reduce labor and equipment investment costs.

[0014] At the same time, through the setting of the cutting mechanism, the cutting tool and two heating strips installed on the connecting plate can be used to cut the mask according to the use size by installing a protective cover, and the elastic rope can be hot-pressed and fixed on the mask body, thereby solving the problem of incompatibility between the children's size and the adult size, reducing consumers' consumption of masks of different sizes, and realizing direct acquisition of multiple mask sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the decomposition structure of the present invention;

[0016] Figure 2 It is a schematic diagram of the present invention in a closed state;

[0017] Figure 3 It is a schematic diagram of the present invention in the open state;

[0018] Figure 4 It is a schematic diagram of the present invention in the cover state;

[0019] Figure 5 This is a schematic diagram of the internal structure of the installation bottom shell of the present invention;

[0020] Figure 6 It is a schematic diagram of the top structure of the cutting mechanism of the present invention;

[0021] Figure 7 It is a schematic diagram of the bottom structure of the cutting mechanism of the present invention;

[0022] Figure 8 It is a schematic diagram of the cooperation between the ratchet gear and the ratchet pawl of the present invention;

[0023] Fig. 9 It is a schematic diagram of the storage mechanism structure of the present invention;

[0024] Fig.10 It is a schematic diagram of the protective cover structure of the present invention;

[0025] Fig.11 It is a schematic diagram of the structure of the replacement core of the present invention;

[0026] Fig.12 It is a processing flow diagram of the present invention:

[0027] Fig.12 - (1) is a schematic diagram of the initial state of the processing flow of the present invention;

[0028] Fig.12 - (2) is a schematic diagram of the hot pressing and cutting state in the processing flow of the present invention;

[0029] Fig.12 - (3) is a schematic diagram of the processing flow of the present invention when cutting is completed;

[0030] Fig.12 - (4) is a schematic diagram of a cut-out mask of the present invention;

[0031] Fig.13 A circuit board for controlling the heat strip.

[0032] In the figure: 1. Install the bottom shell; 101. Bottom box; 102. Hidden cover; 103. Cover outlet; 104. First axis frame; 105. Second axis frame; 106. Return spring; 107. Locking mouth; 2. Storage mechanism; 201. Lower cover; 202. Fixed axis; 203. Upper cover; 204. Arc sliding mouth; 205. Sliding column; 3. Cutting mechanism; 301. Connecting plate; 302. Cutting hot press table; 303. Cover guide table; 30 4. Rotating shaft; 305. Guide cover roller; 306. Ratchet pawl; 307. Ratchet gear; 308. Ratchet; 309. Limiting column; 310. Auxiliary spring; 311. Mounting plate; 312. Rack; 313. Cutting groove; 314. Cutting knife; 315. Hot pressing strip; 4. Protective cover; 401. Protective cover; 402. Push button; 403. Limiting block; 404. Sliding cover; 5. Replacement core; 501. Mask body; 502. Elastic rope. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0034] It should be noted that, in the description of the present invention, the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0035] Furthermore, it should be understood that for the sake of ease of description, the sizes of the various components shown in the drawings are not drawn according to actual proportions. For example, the thickness or width of certain layers may be exaggerated relative to other layers.

[0036] It should be noted that like reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined or described in one drawing, it will not require further detailed discussion and description in the description of the subsequent drawings.

[0037] Before use, select a replacement core 5 according to the actual age or facial size, pull the material of appropriate length, obtain a mask that best suits your size, and then simply press and cut it through the cutting mechanism, and fix the elastic rope 502 with hot pressing to obtain a mask that suits you. The present invention mainly solves the following problems in traditional mask production: 1. Low production capacity, low degree of automation of the production line, complicated procedures, and large labor costs; 2. The models and sizes of the masks produced are fixed and cannot fit children's faces well; 3. After mass production, there may be problems such as improper storage, or long-term non-use, deterioration, contamination, and expiration. The setting of the replacement core 5 changes the traditional production and storage methods, thereby solving the problems of high production efficiency and labor costs. The replacement core 5 can be conveniently stored and replaced, and can be stored for a long time after being aseptically packaged.

[0038] like Figure 1-Figure 11As shown, the present invention provides a technical solution: a mask machine, comprising an installation bottom shell 1, a storage mechanism 2 and a cutting mechanism 3 are respectively installed at the bottom of the installation bottom shell 1, the storage mechanism 2 is located on the back of the cutting mechanism 3, and a protective cover 4 that can move up and down is slidably connected to the top of the installation bottom shell 1, and a replacement core 5 is filled inside the storage mechanism 2, and the replacement core 5 includes a rolled mask body 501, the mask body 501 is divided into an inner and outer surface, and elastic ropes 502 are respectively arranged on both sides of the inner surface of the mask body 501, and both ends of the elastic rope 502 are connected to the mask body 501 The cutting mechanism 3 is fixedly connected, and includes a connecting plate 301 and a rotating shaft 304. Both ends of the rotating shaft 304 are rotatably connected to the side wall of the mounting bottom shell 1. A guide cover roller 305 is fixedly connected to the middle of the outer wall of the rotating shaft 304. The outer wall of the rotating shaft 304 is located on both sides of the guide cover roller 305 and is respectively fixedly connected with ratchet pawls 306. The outer wall of the ratchet pawl 306 is sleeved with a ratchet gear 307. The top of the connecting plate 301 is respectively fixedly connected with a cutting and hot pressing table 302 and a guide cover table 303. The guide cover table 303 is located on the back of the cutting and hot pressing table 302, and the guide cover roller 305 is located on the guide cover table. 303, the top of the connecting plate 301 is located at the positions on both sides of the cutting hot pressing table 302 and is fixedly connected to the limiting columns 309, the outer wall of the limiting column 309 is set with an auxiliary spring 310, the top of the auxiliary spring 310 is fixedly connected to the mounting plate 311, the bottom center of the mounting plate 311 is fixedly connected to the cutting knife 314, the bottom of the mounting plate 311 is located at the front and back of the cutting knife 314. The positions of the hot pressing strips 315 are respectively installed, and the two sides of the back of the mounting plate 311 are respectively fixedly connected to the vertically arranged racks 312, and the racks 312 are connected to the ratchet teeth. The wheels 307 are meshed with each other, and a cutting groove 313 is fixedly provided at the top of the cutting and hot pressing table 302 at the position at the bottom of the cutting knife 314. The top of the rack 312 is fixedly connected to the protective cover 4, and the inner wall of the ratchet gear 307 is provided with a ratchet 308 adapted to the pawl 306. When the rack 312 moves up, the ratchet gear 307 rotates through the cooperation between the pawl 306 and the ratchet 308, and the ratchet 308 drives the pawl 306 to rotate, thereby controlling the rotation shaft 304 to rotate. When the rack 312 moves down, the ratchet 308 cannot drive the pawl 306 to rotate.

[0039] like Fig. 9 As shown, the storage mechanism 2 includes a lower rotary cover 201, both ends of which are fixedly connected with fixed shafts 202, the fixed shafts 202 are rotatably connected to the inner walls of the mounting bottom shell 1 on both sides, the lower rotary cover 201 is rotatably connected with an upper rotary cover 203, both sides of the lower rotary cover 201 are provided with arc-shaped sliding openings 204 above the fixed shafts 202, both sides of the upper rotary cover 203 are fixedly connected with sliding posts 205, the sliding posts 205 are matched with the arc-shaped sliding openings 204, and the sliding posts 205 slide inside the arc-shaped sliding openings 204.

[0040] like Figure 5As shown, the installation bottom shell 1 includes a bottom box 101, a hidden cover 102 is fixedly connected to the top of the bottom box 101, a cover outlet 103 is opened on the front of the hidden cover 102, and a cutting and hot pressing table 302 is located at the back of the cover outlet 103. The inner walls on both sides of the hidden cover 102 are fixedly connected to the first axis frame 104, and the inner walls on both sides of the hidden cover 102 are located at the back of the first axis frame 104 and are respectively fixedly connected to the second axis frame 105. The rotating shaft 304 is rotatably connected to the inside of the first axis frame 104, and the fixed shaft 202 is rotatably connected to the inside of the second axis frame 105. The two sides of the top of the bottom box 101 are respectively fixedly connected to the return spring 106, and the top of the return spring 106 is fixedly connected to the protective cover 4. The first axis frame 104 and the second axis frame 105 are both U-shaped structures. The outer wall of the rotating shaft 304 is connected to the fixed shaft 202. The outer wall is in sliding contact with the inner wall of the first axis frame 104 and the second axis frame 105 respectively, an L-shaped lock 107 is provided on the side of the hidden cover 102, the protective cover 4 includes a protective cover 401, the inner wall of the protective cover 401 is fixedly connected to the return spring 106, the protective cover 401 is surrounded by the outer wall of the hidden cover 102, the inner wall height of the protective cover 401 is greater than the height of the hidden cover 102, a push button 402 is slidably connected to the side of the protective cover 401, and the push button 402 is fixedly connected to the limiting block 403 after passing through the side of the protective cover 401, and the limiting block 403 is adapted to the lock 107 to realize the limiting of the protective cover 401 when covering the hidden cover 102, the rack 312 is fixed on the inner wall of the front side of the protective cover 401, the top of the protective cover 401 is slidably connected to the sliding cover 404, and a Braille protrusion is arranged on the side of the push button 402.

[0041] like Fig.12As shown in the figure, there are four steps used in the present invention. 12-(1) is to open the sliding cover 404, put the replacement core 5 in, and place one end of the replacement core 5 between the guide cover roller 305 and the guide cover platform 303, then push the push button 402 to lift the entire protective cover 4, and the protective cover 4 will drive the rack 312 and the connecting plate 301 to lift up, and then the rack 312 drives the ratchet gear 307 to rotate, and the ratchet gear 307 drives the internal ratchet 306 to rotate, thereby controlling the rotation shaft 304 and the guide cover roller 305 to rotate, so that the mask extends out of the mask opening 103, 12-(2) and 12-(3) are to pull out according to the usage situation. After the mask is made, it is in the state of hot pressing and cutting. When the protective cover 4 is pressed down, the rack 312 drives the ratchet gear 307 to rotate, and the pawl 306 does not drive the rotating shaft 304 to rotate. During the pressing process, due to the elasticity of the mask, the hot pressing strips 315 on both sides of the cutting knife 314 will contact the elastic rope 502 and hot press it on the mask body 501. At this time, the mask body 501 is fixed by the hot pressing strips 315, and the cutting knife 314 can cut the mask body 501. Then, the elastic force of the return spring 106 and the auxiliary spring 310 is used to push the protective cover 4 up, and the operation in 12-(1) is repeated inside. 12-(4) is a finished mask. The main design of the present invention is divided into three parts: a replacement core 5, a storage mechanism, and a cutting mechanism. The replacement core 5 is a rolled semi-finished protective material with a diameter of about 3 cm and a length of about 1 m when unfolded. It can provide 5 adult masks or 6-8 children's masks, and can also fully meet the use of bandages in emergency situations. When in use, after sliding the push button 402 on the protective cover 4 to the rightmost end, the protective cover 4 automatically pops up, driving the rotating shaft 304 and the mask guide roller 305 in the cutting mechanism 3 to rotate. This chain reaction causes the mask body 501 and the elastic rope 502 to be sent out together, and the part exposed from the mask opening 103 will be convenient for the user to pull. The cutting mechanism 3 includes two major functions: hot pressing and cutting. After the user extracts the material of the appropriate length according to his own situation, he only needs to press the protective cover 4 downward to hot press the elastic rope 502 onto the mask body 501 and complete the cutting of the mask.

[0042] like Fig.13 As shown, in order to achieve temperature control and overall power supply of the hot pressing strip 315, a control circuit board for powering and controlling the hot pressing strip 315 is also installed at the bottom of the cutting mechanism. The circuit board is used for a power supply module and a sensing module, which can make the hot pressing strip 315 generate heat by pressing. The hot pressing strip 315 has the function of pressure sensing, so it can realize the heating operation during hot pressing.

[0043] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mask machine, comprising a mounting base (1), characterized in that: The bottom of the installation bottom shell (1) is respectively provided with a storage mechanism (2) and a cutting mechanism (3), the storage mechanism (2) is located on the back of the cutting mechanism (3), the top of the installation bottom shell (1) is slidably connected with a protective cover (4) that can move up and down, the storage mechanism (2) is filled with a replacement core (5), the replacement core (5) includes a rolled mask body (501), the mask body (501) is divided into an inner and outer surface, and elastic ropes (502) are respectively arranged on both sides of the inner surface of the mask body (501), and the elastic ropes (502) are arranged on the inner and outer surfaces of the mask body (501). ) are fixedly connected to the mask body (501), the cutting mechanism (3) comprises a connecting plate (301) and a rotating shaft (304), the two ends of the rotating shaft (304) are rotatably connected to the side walls of the mounting bottom shell (1), a guide mask roller (305) is fixedly connected to the middle of the outer wall of the rotating shaft (304), ratchet pawls (306) are fixedly connected to the positions on both sides of the outer wall of the rotating shaft (304), and the outer wall of the ratchet pawls (306) is sleeved with a ratchet gear (307), and the top of the connecting plate (301) is fixedly connected to the guide mask roller (305). The cutting and hot pressing platform (302) and the guide cover platform (303) are fixedly connected, the guide cover platform (303) is located at the back of the cutting and hot pressing platform (302), the guide cover roller (305) is located above the guide cover platform (303), the top of the connecting plate (301) is located on both sides of the cutting and hot pressing platform (302) and is fixedly connected to the limiting columns (309), the outer wall of the limiting column (309) is tied with an auxiliary spring (310), the top of the auxiliary spring (310) is fixedly connected to the mounting plate (311), and the bottom center of the mounting plate (311) is fixedly connected to the mounting plate (311). A cutting knife (314) is fixedly connected thereto; hot pressing strips (315) are respectively installed at the bottom of the mounting plate (311) at the front and back sides of the cutting knife (314); vertically arranged racks (312) are respectively fixedly connected to the two sides of the back side of the mounting plate (311); the racks (312) are meshed with the ratchet gear (307); a cutting groove (313) is fixedly provided at the top of the cutting and hot pressing platform (302) at the bottom of the cutting knife (314); and the top of the racks (312) is fixedly connected to the protective cover (4).

2. The mask machine according to claim 1, characterized in that: The storage mechanism (2) comprises a lower rotary cover (201), the two ends of the lower rotary cover (201) are respectively fixedly connected with fixed shafts (202), the fixed shafts (202) are rotatably connected to the inner walls of the mounting bottom shell (1) on both sides, the lower rotary cover (201) is internally rotatably connected with an upper rotary cover (203), both sides of the lower rotary cover (201) are provided with arc-shaped sliding openings (204) at positions above the fixed shafts (202), both sides of the upper rotary cover (203) are respectively fixedly connected with sliding columns (205), the sliding columns (205) are matched with the arc-shaped sliding openings (204), and the sliding columns (205) slide inside the arc-shaped sliding openings (204).

3. The mask machine according to claim 2, characterized in that: The mounting bottom shell (1) comprises a bottom box (101), a hidden cover (102) is fixedly connected to the top of the bottom box (101), a cover outlet (103) is provided on the front of the hidden cover (102), the cutting and hot pressing platform (302) is located at the back of the cover outlet (103), the inner walls on both sides of the hidden cover (102) are fixedly connected to the first axis frame (104), the inner walls on both sides of the hidden cover (102) are located at the back of the first axis frame (104) and are respectively fixedly connected to the second axis frame (105), the rotating shaft (304) is rotatably connected to the inside of the first axis frame (104), the fixed shaft (202) is rotatably connected to the inside of the second axis frame (105), and the two sides of the top of the bottom box (101) are respectively fixedly connected to return springs (106), and the top of the return spring (106) is fixedly connected to the protective cover (4).

4. The mask machine according to claim 3, characterized in that: The first shaft frame (104) and the second shaft frame (105) are both U-shaped structures, and the outer wall of the rotating shaft (304) and the outer wall of the fixed shaft (202) are in sliding contact with the inner walls of the first shaft frame (104) and the second shaft frame (105) respectively.

5. The mask machine according to claim 3, characterized in that: The side of the hidden cover (102) is provided with an L-shaped lock opening (107); the protective cover (4) comprises a protective cover (401); the inner wall of the protective cover (401) is fixedly connected to the return spring (106); the protective cover (401) surrounds the outer wall of the hidden cover (102); the height of the inner wall of the protective cover (401) is greater than the height of the hidden cover (102); a push button (402) is slidably connected to the side of the protective cover (401); the side of the push button (402) penetrates the protective cover (401) and is fixedly connected to a limiting block (403); the limiting block (403) and the lock opening (107) are adapted to achieve limiting when the protective cover (401) covers the hidden cover (102); and the rack (312) is fixed to the inner wall of the front face of the protective cover (401).

6. The mask machine according to claim 5, characterized in that: The top of the protective cover (401) is slidably connected to a sliding cover (404), and a Braille protrusion is arranged on the side of the push button (402).

7. The mask machine according to claim 1, characterized in that: The inner wall of the ratchet gear (307) is provided with a ratchet tooth (308) adapted to the ratchet pawl (306); when the rack (312) moves upward, the ratchet gear (307) rotates, and through the cooperation between the ratchet pawl (306) and the ratchet tooth (308), the ratchet tooth (308) drives the ratchet pawl (306) to rotate, thereby controlling the rotation shaft (304) to rotate; when the rack (312) moves downward, the ratchet tooth (308) cannot drive the ratchet pawl (306) to rotate.

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