CN105148420B - PM2.5 dual-purpose type dust protective face mask preparation processes - Google Patents

Abstract

The invention discloses a process for preparing a PM2.5 dual-purpose dust protective mask, belonging to the technical field of occupational hygiene products, including a process for preparing a push-type individual dust protective mask and a process for preparing a pull-type individual dust protective mask. The preparation process of the push-type individual dust protection mask and the preparation process of the pull-type individual dust protection mask are both independently produced by each component and assembled in an assembly line. Push-type individual dust protection mask, including nose bracket, etc., the outer edges of the inside of the nose bracket and the bottom frame are rough and protruding structures; pull-out individual dust protection mask, including outer support pieces, etc., the outer support pieces are respectively connected to the nose The inner sealing layer of the upper part, the inner sealing layer of the right face and the inner sealing layer of the left face are connected; the present invention can provide the workers with a more flexible dust protection method, and has a good dust protection effect in areas with high dust concentration. A place with a low concentration of dust concentration can meet the needs of operators for oxygen intake.

Description

Preparation process of PM2.5 dual-purpose dust protective mask

technical field

The invention belongs to the technical field of occupational hygiene products, and in particular relates to a protective mask for high and low concentration dust.

Background technique

At present, there are a large number of workers in China who are exposed to various types of dust in the workplace for a long time and at high concentrations, such as silica dust, coal dust, asbestos dust, polyethylene dust, gypsum dust, limestone dust, wood dust, aluminum dust, etc. Dust, hemp dust, welding fume, other dust, etc., the on-site investigation found that in most of the workplaces, there are dust concentrations exceeding the "Occupational Exposure Limits of Hazardous Factors in the Workplace Part I: Chemical Hazardous Factors" (GBZ 2.1-2007) The allowable concentration limits of 47 kinds of dust in the air of the workplace.

The on-site investigation found that at present, most of the large enterprises have equipped their workers with qualified and sufficient personal dust masks, but workers rarely wear and use personal dust masks correctly. In workplaces with high concentrations of dust, the proportion of workers wearing personal dustproof equipment correctly is the lowest. The hazards of dust to workers cannot be ignored.

At present, the individual dust-proof products purchased by various enterprises are mainly disposable or fixed personal dust-proof products of foreign brands such as 3M, and there are three major problems. The first problem is that foreign protective products are designed based on the basic face shape of foreigners, which is poorly adaptable to the face shape of Chinese people. When such individual dust-proof products are used to protect against dust, they all adopt the method of increasing the contact pressure between the product and the human face. Guaranteeing the airtightness of the product will cause most workers to feel uncomfortable when wearing personal dust-proof products; the second problem is that the protective products are designed with the basic face shape of foreigners, which does not conform to the facial structure of Chinese people. The fit is poor, and dust can easily enter the protective equipment from the place where the dustproof equipment is not closely attached to the face, which greatly reduces the dust protection efficiency of the protective equipment; the third problem is that the unit price of disposable protective equipment is high and It is difficult to remove, which makes it difficult for operators to take off or bring individual dustproof articles for ventilation during a short break during work in a harsh on-site environment. Sultry heat, high concentration of dust and wearing personal dust-proof products for a long time will inevitably lead to a decrease in the oxygen intake of the workers, and high-intensity physical labor will lead to an increase in the oxygen demand of the workers. Maintain mild hypoxia. It is difficult for workers to endure mild hypoxia for a long time under high-intensity physical labor, which affects the enthusiasm of workers to wear personal dust-proof products, which leads to workers not wearing personal dust-proof products in accordance with regulations. main reason. Therefore, there is an urgent need for a novel technical solution in the prior art to solve this problem.

Contents of the invention

The technical problem to be solved by the present invention is to provide a preparation process for a PM2.5 dual-purpose dust protective mask, which can provide more flexible dust protection methods for operators, and has a good dust protection effect in areas with high dust concentrations , in places with low dust concentrations to meet the needs of operators for oxygen intake.

The PM2.5 dual-purpose dust protective mask is characterized in that it includes a push-type personal dust protective mask and a pull-out personal dust protective mask,

The push-type personal dust protective mask includes nose bracket, pull slot Ⅰ, outer cover rotation shaft, dust-proof filter film Ⅰ, hanging ear or safety helmet connector Ⅰ, outer cover, sealing buckle, bottom frame and sealing layer , the outer edges of the inner side of the nose bracket and the bottom frame are rough and protruding structures; the rotation axis of the outer cover is a cylindrical shaft, which is arranged inside the outer cover; the pulling groove I is welded on the outer cover; the resistance The dust filter film I is set in the drawing groove I; the sealing layer is evenly set in the shape of a belt on the edge of the nose bracket and the bottom frame; the sealing buckle is fixed on the outer cover; the hanging ear or safety cap Connecting piece Ⅰ is fixedly connected with the outer edge of the bottom frame; there are 1 to 50 holes at the position covered by the outer cover on the bottom frame;

Among them, the pull-out personal dust protective mask includes the outer support sheet, the inner seal layer of the nose, the inner seal layer of the right face, the inner seal layer of the left face, the pull-out groove II, the pull-out handle, the dust-proof filter membrane II and the hanging Ear or safety helmet connector II, the outer support piece is respectively connected with the inner seal layer of the nose, the inner seal layer of the right face and the inner seal layer of the left face; two pulling grooves II are arranged on the outer support piece, and the two There are 1 to 50 holes arranged between the pulling grooves II; the dust-blocking filter membrane II is set in the pulling groove II; the pulling handle is connected to the short side of the support frame outside the dust-blocking filter membrane II; The drawing groove II, the hanging ear or the helmet connector II are fixedly connected with the outer support sheet.

The preparation process of the PM2.5 dual-purpose dust protection mask is characterized in that it includes the preparation process of the pressing type individual dust protection mask and the preparation process of the pull type individual dust protection mask

Among them, the preparation process of the press-type individual dust protective mask adopts the independent production of each component and the assembly line assembly operation method, including the following steps,

Step 1. Making the nose bracket and base frame

The nose bracket and the bottom frame are made of aluminum or hard plastic, and the aluminum material is selected as the material, and the one-time molding process of casting, hot pressing or cold pressing is adopted; the hard plastic is selected as the material, and it is formed by pouring or cutting and pressing Process; the inner and outer edges of the nose bracket and the bottom frame are made into a rough protruding structure, and other parts are smooth structures;

Step 2. Fabrication of the outer cover and the rotating shaft

The outer cover is made of aluminum or alloy, and adopts a one-time molding process of hot pressing or cold pressing; the rotating shaft of the outer cover is made of hard metal as a material, and is made into a cylindrical metal rod, which can be installed independently or with the outer cover. set as one;

Step 3, component assembly

a. Completely cover the bottom frame and the non-protruding rough part inside the nose bracket with a plastic film, press and seal;

b. Insert the rotating shaft of the outer cover into the upper part of the outer cover;

c. Weld the pull groove Ⅰ on the outer cover;

d. Put the dust filter membrane Ⅰ into the drawing groove Ⅰ, and the outer cover part is assembled;

e. Fix the outer cover part, nose bracket, hanging ear or helmet connector I on the bottom frame by welding, and the main body of the mask is assembled;

f. Use the mechanical arm to fix the main body of the mask, keep the main body of the mask horizontal and the inner side downward, and adjust the height of the mechanical arm to immerse the protruding and rough part of the inner side of the bottom frame into the photosensitive composite resin pool. The mechanical arm moves slightly to ensure that the composite resin is uniform and dense. Stick to the protruding and rough parts of the bottom frame and the nose bracket, so that the sealing layer forms a continuous photosensitive composite resin layer with a thickness of 0.5cm to 2cm, and the mechanical arm is lifted up to move the main body of the mask out of the composite resin pool. Press-type individual dust protection mask Combined;

g. Put the press-type individual dust protective mask into a seamless black plastic box and fix it to ensure that the composite resin in each part does not stick to the black plastic box. Use nitrogen to blow out the air in the box, and it will be a black plastic box in a nitrogen environment. Cover and seal the black plastic box with black plastic under a nitrogen atmosphere;

Among them, the preparation process of the pull-out individual dust protective mask adopts the independent production of each part and the assembly line assembly operation method, including the following steps,

Step 1. Fabrication of the outer support piece

Aluminum or hard plastic is selected as the material for the outer support sheet. When aluminum is selected as material, a one-time molding process of pouring, hot pressing or cold pressing is adopted; when hard plastic is selected as material, one-time molding by pouring or cutting and pressing are used Process production; the inner and outer edges of the outer support piece are made as a rough protruding structure, and the other parts are made as a smooth structure;

Step 2. Fabrication of the pull slot Ⅱ

The two pull-out grooves II set on the outer support sheet are concave in design, and there are 1 to 50 holes between the two pull-out grooves II for the ventilation of the workers, and the dust-blocking filter membrane II is in the Completely cover all the above-mentioned holes when fully entering the drawer slot.

Step 3, component assembly

a. Completely cover the non-protruding and rough parts inside the outer support sheet with plastic film, that is, the inner sealing layer of the nose, the inner sealing layer of the right face, and the corresponding positions of the inner sealing layer of the left face, and press and seal;

b. Crimp the pull handle on the short side of the outer support frame of the dust-blocking filter membrane II;

c. Weld the drawing groove II, the hanging ear or the helmet connector II on the outer support piece;

d. Put the dust-blocking filter film II into the pull-out groove II of the outer support sheet, and the main body of the mask is assembled;

e. Fix the main body of the mask with the mechanical arm, keep the main body of the mask horizontal and the inner side downward, and adjust the height of the mechanical arm to immerse the protruding and rough part of the inner side of the outer support sheet into the photosensitive composite resin pool. The mechanical arm moves slightly to ensure that the composite resin is uniform and compact The protruding and rough parts on the inner side of the outer support sheet form the inner seal layer of the nose, the inner seal layer of the right face, and the inner seal layer of the left face. The sealing layer, the inner sealing layer of the right face, and the inner sealing layer of the left face form a continuous photosensitive composite resin layer with a thickness of 0.5cm to 2cm, and the pull-out individual dust protective mask is assembled;

f. Put the pull-out individual dust protective mask into a seamless black plastic box and fix it to ensure that the composite resin in each part does not stick to the black plastic box. Use nitrogen to blow out the air in the box, and it will be black plastic in a nitrogen environment. The box is covered, and the black plastic box is plastic-sealed with black plastic under a nitrogen atmosphere.

The protruding structure of the inner and outer edges of the outer support sheet is the skeleton of composite resin for the inner sealing layer of the nose, the inner sealing layer of the right face and the inner sealing layer of the left face.

The outer cover and the dust-blocking filter I are connected by the dust-blocking filter set on the outer cover.

The dust-repelling filter membrane I and the dust-repelling filter membrane II are homogeneous microporous dust-repelling membranes, and a support ring is fixed around the filter membrane, and the outer diameter of the support ring is smaller than the inner diameter of the drawing groove I and the drawing groove II respectively. .

The outer supporting sheet is a one-time molded aluminum material or hard plastic, and the inner and outer edges of the outer supporting sheet are of rough structure.

The size of the protective mask is obtained through computer database modeling and analysis.

The photosensitive composite resin used in the sealing layer 9 is a non-allergenic material, and the user presses the mask to conform to the shape of his face when using it for the first time.

The sealing layer 9, the inner sealing layer 11 of the nose, the inner sealing layer 12 of the right face and the inner sealing layer 13 of the left face adopt a sealing and light-proof production process.

The push-type individual dust protection mask and the pull-out type individual dust protection mask are sealed and kept away from light before use.

Through the above design scheme, the present invention can bring the following beneficial effects: a PM2.5 dual-purpose dust protective mask and its preparation process can provide more flexible dust protection methods for operators, and can be used in areas with high dust concentrations. To achieve a good dust protection effect, meet the needs of operators for oxygen intake in low-concentration dust concentration places. The sealing layer completely fits the face shape of each worker, preventing the dust in the workplace from directly entering the mouth and nasal cavity through the gaps in the nose, cheeks and chin; Oxygen intake requirements in low dust concentration areas. The high and low concentration dust dual-purpose individual dust protection method combines consumable components and durable components, which reduces the cost of single dust protection while ensuring the individual applicability of the individual dust protection method.

The present invention also has the following advantages:

(1) The pull-out structure is convenient for operators to adjust dust filtration requirements and oxygen requirements in different areas.

⑵The photosensitive composite resin fits the device completely to the face shape of the operator, preventing dust from directly entering the nasal cavity or oral cavity. Photosensitive materials have good affinity with human skin and mucous membranes, and are non-allergenic materials.

⑶ The pressure on the face and nose of the face mask is smaller than that of traditional protective masks, and it will not make people feel uncomfortable when worn for a long time.

⑷Except for the edge of the mask, the rest of the mask does not fit the face. The hot air exhaled by the person can be diffused and cooled more quickly, reducing the possibility of local overheating, thereby reducing discomfort. Compared with traditional masks, the temperature inside the mask can be effectively reduced

⑸The underframe has 1-50 holes in the part that can be covered by the outer cover, which is used to reduce the weight of the underframe and reduce the breathing resistance of the operator when the outer cover is opened or the dust filter is pulled out.

⑹ The main material of the sealing layer is photosensitive composite resin (the photosensitive composite resin needs to be sealed and stored away from light before the first use), and the sealing layer is evenly and continuously distributed in the shape of a belt on the edge of the nose bracket and the bottom cover. After unpacking, the high and low concentration dust dual-purpose personal dust protection equipment is buckled on the face of the operator, and the shape memory facial contour of the composite resin is changed to varying degrees through different positions, and the photosensitive composite resin is cured by a light curing lamp. The nose bracket and the bottom frame are closely fitted to the face of the operator, so that the high and low concentration dust dual-purpose personal dust protection method can fully match the individual, and prevent the dust in the workplace from directly entering through the gaps in the nose, cheeks, and chin. Nasal and oral cavity of workers.

⑺Investigate and record the face shapes of 200 adult men and women in various regions of China, input into computer statistics and model, analyze, design and make molds that conform to Chinese face shapes, and increase the adaptability of protective masks to Chinese face shapes.

⑻ The combination of the reusable mask body and the disposable dust filter can effectively reduce the cost of a single use.

⑼ The main body of the mask is made of hard material, which can effectively reduce the possibility of deformation and ensure the best working condition.

⑽The main body of the mask is made of hard material, which is resistant to a certain degree of impact and can increase the safety factor of the operator when wearing the mask.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

Fig. 1 is a structural schematic diagram of the PM2.5 dual-purpose dust protection mask of the present invention, a press-type individual dust protection mask.

Fig. 2 is a schematic structural diagram of the PM2.5 dual-purpose dust protection mask of the present invention, a pull-out individual dust protection mask.

In the figure 1-nose bracket, 2-drawing slot Ⅰ, 3-rotating shaft of outer cover, 4-dust filter membrane Ⅰ, 5-hanging ear or helmet connector Ⅰ, 6-outer cover, 7-sealing card Buckle, 8-base frame, 9-sealing layer, 10-outer support sheet, 11-inner sealing layer of nose, 12-inner sealing layer of right face, 13-inner sealing layer of left face, 14-drawing groove II , 15-pull handle, 16-dust filter membrane II, 17-hanging ear or safety helmet connector II.

Detailed ways

Embodiment one

Press-type personal dust protective mask, as shown in Figure 1, includes nose bracket 1, pull slot I2, outer cover rotation shaft 3, dust filter membrane I4, hanging ear or safety helmet connector I5, outer cover 6, seal Buckle 7, base frame 8 and sealing layer 9, the outer edges of the inner side of the nose bracket 1 and the base frame 8 are rough and protruding structures; the outer cover rotation axis 3 is a cylindrical shaft, which is arranged inside the outer cover 6 ; The drawing groove I2 is welded on the outer cover 6; the dust-blocking filter film I4 is set in the drawing groove I2; The sealing buckle 7 is fixedly arranged on the outer cover 6; the hanging ear or the helmet connector I5 is fixedly connected with the outer edge of the chassis 8; the position covered by the outer cover 6 on the chassis 8 is provided with 1 to 50 pieces holes;

The push-type individual dust protective mask is produced by independent production of each component and assembled in an assembly line.

Investigate and record the face shapes of 200 adult men and women in various regions of China in advance, input computer statistics and modeling, analyze, design and make molds and assembly and crimping processes that conform to Chinese face shapes, and the molds are used for personal protection in pressing harmful dust workplaces Manufacture of various parts of the mask.

The following are the design and production methods of each part of the embodiment of the present invention:

The nose bracket 1 and the bottom frame 8 of the present invention are made of aluminum or hard plastic, and when aluminum is used, the one-time molding process of pouring, hot pressing or cold pressing is adopted; Manufactured by composite technology, the inner and outer edges of the nose bracket 1 and the bottom frame 8 are rough and protruding structures, which are used as the skeleton of the sealing layer composite resin, and the other parts are smooth structures. There are 1 to 50 holes left on the part of the cover that can be shielded corresponding to the bottom frame.

The outer cover rotating shaft 3 described in the present invention is a long straight cylinder, which is independent or integrated with the outer cover. For connecting the connecting parts of the bottom frame 8 and the outer cover 6, the material is hard metal.

The outer cover 6 of the present invention is made of aluminum or alloy, hot-pressed or cold-pressed at one time, and there is a clamping position for placing the dust-blocking filter membrane I4 on the outside. The inner edge completely fits the shape of the edge of the bottom frame 8 and is fixed with dust-proof material. There are two pull-out grooves I2 on the outer cover, and there are one or more holes between the two pull-out grooves I2 for ventilation of workers. The dust-blocking filter film I4 must completely cover all the holes when it is fully inserted into the drawer slot.

The main material of the sealing layer 9 according to the present invention is photosensitive composite resin (the photosensitive composite resin needs to be sealed and protected from light before the first use), and the sealing layer is evenly and continuously distributed on the nose bracket 1 and the bottom frame 8 in a strip shape After unpacking for the first time, buckle the high and low concentration dust dual-purpose personal dust protective equipment on the face of the operator, and change the shape memory facial contour of the composite resin to varying degrees through different positions, and then cure and shape it with a light curing lamp Photosensitive composite resin. The nose bracket 1 and the bottom frame 8 are closely attached to the face of the operator, so that the high and low concentration dust dual-purpose personal dust protection method can fully match the individual, and prevent the dust in the workplace from passing through the gaps at the nose, cheeks, and chin. Directly enter the nasal cavity and oral cavity of the worker.

The sealing buckle 7 of the present invention is fixed on the outer cover 6, and is inserted into the buckle groove corresponding to the bottom frame 8 by pressing. Breaking away from the bottom frame groove, the other is to directly pull out the sealing buckle 7 from the sealing groove on the bottom frame 8 by external force.

The hanger or helmet connector I5 of the present invention is an elastic soft connection or a hard connection, and has two functions: one is to fix and press the position of the personal protective mask on the human face in the harmful dust workplace, and the other is to increase the Press the pressure of the personal protective mask on the human face in the harmful dust workplace to prevent the dust in the workplace from directly entering the nasal cavity and mouth of the worker through the gap.

The dust-blocking filter membrane I4 of the present invention is composed of two parts, the main body is a homogeneous microporous dust-blocking filter membrane, and a support material with rigidity and certain toughness is fixed around the filter membrane, and the outer diameter of the support material is slightly smaller than the outer diameter. The inner diameter of the drawing groove I2 on the cover 6 can move with less resistance in the drawing groove I2.

The following is the combination process of each component of the embodiment of the present invention:

1. Cover the bottom frame 8 and the non-protruding rough part inside the nose bracket 1 with a plastic film, press and seal;

2. Insert the rotating shaft 3 of the outer cover into the upper part of the outer cover 6;

3. Weld the pulling groove Ⅰ2 to the designated position of the outer cover 6;

4. Put the dust-blocking filter film Ⅰ4 into the drawing groove Ⅰ2, and the 6 parts of the outer cover are assembled;

5. Fix the 6 parts of the outer cover, the nose bracket 1, the hanging ear or the helmet connector I5 to the bottom frame by welding, and the main body of the mask is assembled;

6. Fix the main body of the mask through the mechanical arm, keep the main body of the mask horizontal and the inner side down, and adjust the height of the mechanical arm to immerse the protruding and rough part of the inner side of the bottom frame into the photosensitive composite resin pool. The mechanical arm moves slightly to ensure that the composite resin is uniform and dense. Stick to the protruding and rough parts of the bottom frame 8 and the nose bracket 1, lift up the mechanical arm, move the main body of the mask out of the composite resin pool, and press the individual protective mask for the harmful dust workplace to complete the assembly;

7. Put the press-type individual dust protective mask into a seamless black plastic box and fix it to ensure that the composite resin in each part does not stick to the black plastic box. Use nitrogen to blow out the air in the box, and it will be a black plastic box in a nitrogen environment. Add a cover, and seal the black plastic box with black plastic under a nitrogen atmosphere.

Embodiment two

The pull-out individual dust protection mask, as shown in Figure 2, includes an outer support sheet 10, a nose inner seal layer 11, a right face inner seal layer 12, a left face inner seal layer 13, a pull groove II 14, a pull-out The handle 15, the dust-blocking filter film II 16, and the ear or helmet connector II 17, the outer support piece 10 is respectively connected with the inner sealing layer 11 of the nose, the inner sealing layer 12 of the right face, and the inner sealing layer 13 of the left face; Two drawing grooves II14 are arranged on the outer supporting sheet 10, and 1 to 50 holes are arranged between the two drawing grooves II14; the dust-blocking filter film II16 is arranged in the drawing groove II14; The pull handle 15 is connected to the short side of the support frame outside the dust-blocking filter membrane II16; the pull groove II14, the hanging ear or the helmet connector II17 are fixedly connected to the outer support sheet 10.

The pull-out individual dust protective mask is produced by independent production of each component and assembled in an assembly line.

Investigate and record the face shapes of 200 adult men and women in various regions of China in advance, input computer statistics and modeling, analyze, design and make molds and assembly and crimping processes that conform to Chinese face shapes, and the molds are used for personal protection in pressing harmful dust workplaces Manufacture of various parts of the mask.

The following are the design and production methods of each part of the embodiment of the present invention:

The outer support sheet 10 is made of aluminum or hard plastic, and when using aluminum, it adopts a one-time molding process of pouring, hot pressing or cold pressing; The outer edge of the inner side of the sheet is a rough protruding structure, which is used as the skeleton of the composite resin for the inner layer sealing layer 11 of the nose, the inner layer sealing layer 12 of the right face, and the inner layer sealing layer 13 of the left face, and the other parts are smooth structures.

Two pulling grooves II14 are arranged on the outer supporting sheet 10, which adopts a concave design, and the function is to seamlessly connect the dust-blocking filter film II16, preventing dust from passing through the gap between the dust-blocking filter film II16 and the pulling groove II14. Enter the nasal cavity and oral cavity. There are 1 to 50 holes between the two drawing grooves II14 for ventilation of the workers. When the dust-blocking filter membrane II16 enters the drawing groove II14 completely, it must completely cover all the holes.

The main material of each of the sealing layers is a photosensitive composite resin (the photosensitive composite resin needs to be sealed and stored away from light before the first use), and the sealing layer is evenly and continuously distributed in the shape of a belt in the inner sealing layer of the nose 11 and the inner layer of the right face. The seal layer 12 and the inner seal layer 13 of the left face correspond to the position. After the first unpacking, the PM2.5 dual-purpose dust protection mask is buckled on the face of the operator. The shape memory of the composite resin is changed to varying degrees through different positions with different forces. For facial contours, the stereotyped photosensitive composite resin is cured by a light curing lamp.

The dust-blocking filter membrane II16 is composed of two parts, the main body is a homogeneous microporous dust-blocking filter membrane II16, and a support material with rigidity and certain toughness is fixed around the filter membrane, and the outer diameter of the support material is slightly smaller than the pull-out The inner diameter of the groove II14 can move with less resistance in the drawing groove II14.

The hanging ear or the safety helmet II17 connector is an elastic soft connection or a hard connection, which has two functions: one is to draw and press the position of the individual dust-proof device on the face, and the other is to increase the position of the pull-and-pull individual dust-proof device. The pressure of the dust-proof equipment on the face prevents the dust in the workplace from directly entering the nasal cavity and mouth of the worker through the gap.

The following is the combination process of each component of the embodiment of the present invention:

1. Completely cover the non-protruding and rough parts inside the outer support sheet 10 with a plastic film, that is, the corresponding positions of the inner sealing layer 11 of the nose, the inner sealing layer 12 of the right face, and the inner sealing layer 13 of the left face, and press and seal;

2. Crimp the pull handle 15 on the short side of the outer support frame of the dust-blocking filter membrane II16;

3. Weld the drawing groove Ⅱ14, the hanging ear or the safety helmet connector Ⅱ17 to the designated position of the outer support piece 10;

4. Put the dust-blocking filter film II16 into the pulling groove II14 of the outer support sheet 10, and the main body of the mask is assembled;

5. Fix the main body of the mask through the mechanical arm, keep the main body of the mask horizontal and the inner side downward, and by adjusting the height of the mechanical arm, immerse the protruding and rough part of the inner side of the outer support sheet 10 into the photosensitive composite resin pool, and the mechanical arm moves slightly to ensure that the composite resin is uniform Densely adhered to the protruding and rough parts inside the outer support sheet to form the inner sealing layer 11 of the nose, the inner sealing layer 12 of the right face, and the inner sealing layer 13 of the left face. The mechanical arm is lifted up to move the main body of the mask out of the composite resin pool. The pull-out personal dust protective mask is assembled;

6. Put the pull-out individual dust protective mask into a seamless black plastic box and fix it to ensure that the composite resin in each part does not stick to the black plastic box. Use nitrogen to blow out the air in the box, and it will be black plastic in a nitrogen environment. The box is covered, and the black plastic box is plastic-sealed with black plastic under a nitrogen atmosphere.

The using method of the PM2.5 dual-purpose type dust protection mask of the present invention is:

The PM2.5 dual-purpose dust protection mask needs to be sealed in a sealed and light-proof bag immediately after assembly to prevent the photosensitive composite resin from being shaped by light before use, which cannot fully fit the facial contours of the workers.

Operators need to wash their face and hands and dry them before using the PM2.5 dual-purpose dust protective mask for the first time. After taking out the PM2.5 dual-purpose dust protective mask from the sealed bag, the operator needs to immediately press the device to his mouth and nose correctly, fasten it with moderate force and keep it for 5-30 seconds, take it off, and pass it through the curing light. The emitted visible light or ultraviolet light sets the shape of the composite material, and the shape of the material does not change until the material is fixed.

Push the disposable dust-blocking filter into the drawing slot until the dust-blocking filter completely enters the drawing slot. Check whether the dust filter membrane is pulled smoothly.

Claims (10)

1.PM2.5 push type individual dust protective face mask preparation processes, push type individual dust protective face mask, including nose holder (1), pull slot I (2), outer cover rotation axis (3), resistance dirt filter membrane I (4), hangers or safety cap connector I (5), outer cover (6), sealing The outer edge of the inside of buckle (7), chassis (8) and sealant (9), the nose holder (1) and chassis (8) is coarse protrusion Structure；The outer cover rotation axis (3) is cylindrical shaft, is arranged on the inside of outer cover (6)；The pull slot I (2) is set as two, And it is welded on outer cover (6)；The resistance dirt filter membrane I (4) is arranged in pull slot I (2)；The sealant (9) is in band-like equal The even marginal position for being arranged on nose holder (1) and chassis (8)；The sealing buckle (7) is fixed on outer cover (6)；Institute Hangers or safety cap connector I (5) is stated to be fixedly connected with chassis (8) outer ledge；The position that outer cover (6) covers on chassis (8) It is provided with 1~50 holes；It is characterized in that：Push type individual dust protective face mask preparation process is independently raw using each component Production, the operating type of assembly line assembling make, include the following steps,

Step 1: the making of nose holder and chassis

The nose holder (1) and chassis (8) choose aluminium or hard plastic as material, wherein it is material to choose aluminium, using pour, Hot pressing or cold pressing once through moulding technology；Selection hard plastic is material, using pouring one-pass molding or cutting process for pressing；The nose The inside outer edge of bracket (1) and chassis (8) is made as coarse prominent structure, other positions are smooth structure；

Step 2: the making of outer cover and rotation axis

The outer cover (6) chooses aluminium or alloy as material, using hot pressing or cold pressing once through moulding technology；The outer cover turns Moving axis (3) chooses hard metal as material, is fabricated to cylinder type metal bar, can be independently installed or set and is integrated with outer cover；

Step 3: component combination

A, non-protruding coarse part on the inside of chassis (8) and nose holder (1), pressing sealing is completely covered with plastic foil；

B, outer cover rotation axis (3) is penetrated into outer cover (6) top；

C, pull slot I (2) is welded on outer cover (6)；

D, resistance dirt filter membrane I (4) is placed in pull slot I (2), outer cover portion combination finishes；

E, outer cover (6) part, nose holder (1), hangers or safety cap connector I (5) are fixed by welding on chassis (8), Mask body combination finishes；

F, mask body is fixed by mechanical arm, keeps mask body level, inside downward, it, will by adjusting mechanical arm height The inside of chassis (8) protrudes coarse position and immerses in light sensitivity compound resin pond, and mechanical arm fine motion ensures that compound resin uniformly causes The close coarse position of protrusion for being sticked to chassis (8) and nose holder (1) makes sealant (9) form the continuous of 0.5cm~2cm thickness Light sensitivity compound resin layer is lifted on mechanical arm, and mask body is removed compound resin pond, push type individual dust protective face mask group Conjunction finishes；

G, push type individual dust protective face mask is put into seamless black plastic box, it is fixed, ensure the compound of each position Resin with black plastic box adhesion, is not blown with nitrogen and catches up with air in box, is capped in a nitrogen environment for black plastic box, With black plastic by black plastic box plastic packaging under nitrogen environment.

2. PM2.5 push types individual dust protective face mask preparation process according to claim 1, it is characterized in that：It is described outer Lid (6) is connect with resistance dirt filter membrane I (4) by the resistance dirt filter membrane screens set on outer cover (6).

3. PM2.5 push types individual dust protective face mask preparation process according to claim 1, it is characterized in that：The resistance Dirt filter membrane I (4) hinders dirt filter membrane for homogeneous micropore, and filter membrane surrounding is fixed with bracing ring, and the outer diameter of bracing ring is less than pull slot I (2) internal diameter.

4. PM2.5 push types individual dust protective face mask preparation process according to claim 1, it is characterized in that：It is described to press The size of pressure type individual dust protective face mask is obtained for Computer Database modeling analysis；Push type individual dust protective face mask makes With preceding for sealing avoid light place.

5. PM2.5 push types individual dust protective face mask preparation process according to claim 1, it is characterized in that：It is described close The Photosensitive compound resin that sealing (9) uses, by the pressing to mask when user uses for the first time, is allowed to for non-sensitiser Meet its face shape.

6. PM2.5 push types individual dust protective face mask preparation process according to claim 1, it is characterized in that：It is described close The making of sealing (9) is protected from light production technology using sealing.

7.PM2.5 drawing and pulling type individual dust protective face mask preparation processes, drawing and pulling type individual dust protective face mask, including outside-supporting Piece (10), nose inner sealant layer (11), right face inner sealant layer (12), left face inner sealant layer (13), pull slot II (14), Drawing handle (15), resistance dirt filter membrane II (16) and hangers or safety cap connector II (17), the lateral branch blade (10) point It is not connect with nose inner sealant layer (11), right face inner sealant layer (12) and left face inner sealant layer (13)；Outside-supporting Two pull slots II (14) are provided on piece (10), and 1~50 holes are provided between two pull slots II (14)；It is described Resistance dirt filter membrane II (16) is arranged in pull slot II (14)；The drawing handle (15) and the support on the outside of resistance dirt filter membrane II (16) Frame short side connects；The pull slot II (14), hangers or safety cap connector II (17) are fixedly connected with lateral branch blade (10)； It is characterized in that：Drawing and pulling type individual dust protective face mask preparation process is independently produced using each component, the operator of assembly line assembling Formula makes, and includes the following steps,

Step 1: the making of lateral branch blade

The lateral branch blade (10) chooses aluminium or hard plastic is material, when to choose aluminium be material, using pour, hot pressing or cold The once through moulding technology of pressure；When choosing hard plastic as material, made using pouring one-pass molding or cutting process for pressing；Lateral branch Blade (10) internal periphery is made as coarse prominent structure, and other parts are made as smooth structure；

Step 2: the making of pull slot II

The two pull slots II (14) set in the lateral branch blade (10), are designed using indent, and two pull slots II (14) there are 1~50 holes between, breathe freely for operating personnel, when resistance dirt filter membrane II (16) is in completely into pull slot Above-mentioned institute's hole is blocked completely；

Step 3: component combination

A, non-protruding coarse part on the inside of lateral branch blade (10), i.e. nose inner sealant layer is completely covered with plastic foil (11), right face inner sealant layer (12), left face inner sealant layer corresponding position (13), pressing sealing；

B, drawing handle (15) is crimped on II (16) peripheral support frame short side side of resistance dirt filter membrane；

C, pull slot II (14), hangers or safety cap connector II (17) are welded in lateral branch blade (10)；

D, dirt filter membrane II (16) will be hindered to be placed in the pull slot II (14) of lateral branch blade (10), mask body combination finishes；

E, mask body is fixed by mechanical arm, keeps mask body level, inside downward, it, will by adjusting mechanical arm height The inside of lateral branch blade (10) protrudes coarse position and immerses in light sensitivity compound resin pond, and mechanical arm fine motion ensures compound resin The coarse position of protrusion being sticked on the inside of lateral branch blade (10) of even compact forms nose inner sealant layer (11), in right face Layer sealant (12), left face inner sealant layer (13) are lifted on mechanical arm, and mask body is removed compound resin pond, is made in nose Layer sealant (11), right face inner sealant layer (12), left face inner sealant layer (13) form the continuous light of 0.5cm~2cm thickness Quick property compound resin layer, the combination of drawing and pulling type individual dust protective face mask finish；

F, drawing and pulling type individual dust protective face mask is put into seamless black plastic box, it is fixed, ensure the compound of each position Resin with black plastic box adhesion, is not blown with nitrogen and catches up with air in box, is capped in a nitrogen environment for black plastic box, With black plastic by black plastic box plastic packaging under nitrogen environment.

8. PM2.5 drawing and pulling types individual dust protective face mask preparation process according to claim 7, it is characterized in that：It is described outer The protrusion structure of collateral blade (10) internal periphery is nose inner sealant layer (11), right face inner sealant layer (12) and left face The skeleton of inner sealant layer (13) compound resin.

9. PM2.5 drawing and pulling types individual dust protective face mask preparation process according to claim 7, it is characterized in that：It is described outer Collateral blade (10) is the aluminium or hard plastic of disposal molding, and the inside outer edge of lateral branch blade (10) is coarse structure.

10. PM2.5 drawing and pulling types individual dust protective face mask preparation process according to claim 7, it is characterized in that：The pumping The size of pull-type individual dust protective face mask is obtained for Computer Database modeling analysis；The drawing and pulling type individual dust protection face Cover is using preceding for sealing avoid light place；

The resistance dirt filter membrane II (16) hinders dirt filter membrane, and filter membrane surrounding is fixed with bracing ring, the outer diameter of bracing ring for homogeneous micropore Less than the internal diameter of pull slot II (14)；

The making of the nose inner sealant layer (11), right face inner sealant layer (12) and left face inner sealant layer (13) uses Sealing is protected from light production technology.