Filter assembly device and assembly process for mask

Abstract

The invention relates to a filter assembly device and assembly process for a mask, and the assembly device comprises a main body limiting assembly and a clamping press-fitting mechanism; the clamping and press-fitting mechanism comprises a clamping and abutting assembly, a driving assembly and an elastic abutting assembly, the clamping and abutting assembly is used for clamping the end edge of the first end of the filter, the driving assembly is used for driving the clamping and abutting assembly to move so as to mount the filter into the mounting hole, and the elastic abutting assembly is used for abutting against the mask body; after the filter is pressed into the mounting hole, the clamping and abutting assembly can clamp the filter to move to the avoiding position in the direction deviating from the pressing direction; when the filter moves to the avoiding position, the elastic abutting assembly is used for preventing the mask body from being completely separated from the assembling station; when the filter is located at the avoiding position, a moving space for the clamping and abutting assembly to loosen the filter is formed between the first groove wall and the mask body. According to the invention, the condition that the product is damaged in the assembling process can be effectively avoided.

Description

Technical Field

[0001] The present application relates to the technical field of automated equipment, and particularly relates to a filter assembly device and an assembly process for a face mask. Background Art

[0002] A face mask is a type of respiratory protection device that can be used to filter particulate matter or specific gases / vapors. The face mask mainly includes a mask body that fits the facial protection area and a filter installed on the mask body. Among them, the mask body is usually made of a flexible material to form good conformity and comfort, and an installation hole is provided on the mask body. The filter is provided with a filter assembly inside and an annular groove adapted to the size of the installation hole on the outside of the filter. Align the filter with the installation hole and press-fit it so that the inner edge of the installation hole is embedded in the annular groove, thereby realizing the assembly of the filter and the mask body.

[0003] Refer to Figure 1 , a conventional filter 100 usually has a certain height along its press-fitting direction, thereby forming a fitting section 101 that cooperates with the installation hole 201 and an extension section 102 that can be clamped by a clamping jaw, so as to clamp the extension section 102 of the filter 100 with a clamping jaw and perform press-fitting after aligning with the installation hole 201; but some filters 100 also remove the extension section 102 based on specific design requirements. Refer to Figure 2 The filter 100 shown. This filter 100 only includes a fitting section 101 that cooperates with the installation hole 201 of the mask body 200 in its press-fitting direction. For such a filter 100, if the clamping jaw directly clamps the fitting section 101 for press-fitting, there will be a problem that the clamping jaw interferes with the mask body 200, which easily causes damage to the mask body 200 and needs to be improved. Summary of the Invention

[0004] One of the purposes of the present application is to provide a filter assembly device for a face mask, which can automatically assemble the filter to the mask body and can effectively avoid product damage during the assembly process.

[0005] Another purpose of the present application is to provide a filter assembly process for a face mask. This assembly process uses a filter assembly device for a face mask provided in one of the purposes of the present application, which can effectively avoid product damage during the assembly process.

[0006] One of the purposes of the present application provides a filter assembly device for a face mask, which adopts the following technical solutions: A filter assembly device for a face mask, used to assemble the filter into the installation hole of the mask body, includes a main body limiting component and a clamping and press-fitting mechanism. The main body limiting component is used to limit the mask body at the assembly station; Define the movement direction in which the filter is assembled into the mounting hole after being aligned with the mounting hole as the press-fitting direction. The filter includes a first end and a second end that face away from each other along the press-fitting direction. There is an annular groove adapted to the mounting hole between the first end and the second end. The second end passes through the mounting hole during the press-fitting process of the filter so that the inner edge of the mounting hole is embedded in the annular groove. Define the groove wall of the annular groove close to the first end as the first groove wall, and define the groove wall of the annular groove close to the second end as the second groove wall; The clamping and press-fitting mechanism includes a clamping and pressing component, a driving component, and an elastic pressing component. The clamping and pressing component is used to clamp the edge of the first end of the filter. The driving component is used to drive the clamping and pressing component to move so as to install the filter into the mounting hole. The elastic pressing component is used to press against the mask body; After the filter is press-fitted into the mounting hole, the clamping and pressing component can clamp the filter and move it to an avoidance position along the direction away from the press-fitting direction. During the movement of the filter to the avoidance position, the elastic pressing component is used to prevent the mask body from completely leaving the assembly station. When the filter is in the avoidance position, an activity space for the clamping and pressing component to release the filter is formed between the first groove wall and the mask body.

[0007] By adopting the above technical solution, the filter is clamped by the clamping and pressing component, and driven by the driving component, the filter is moved to a position aligned with the mounting hole, and then the driving component drives the clamping and pressing component to carry the filter and install it into the mounting hole of the mask body along the press-fitting direction. When the filter is installed in the mounting hole, the elastic pressing component abuts against the mask body. After the filter is installed in the mounting hole, the clamping and pressing component clamps the filter and moves it to an avoidance position along the direction away from the press-fitting direction. During this period, the elastic pressing component presses against the mask body to prevent the mask body from completely leaving the assembly station, and when the filter is in the avoidance position, an activity space for the clamping and pressing component to release the filter is formed between the first groove wall of the filter and the mask body. Then the clamping and pressing component releases the clamping of the filter and moves to its preset position, that is, the press-fitting process of the filter is completed. The filter is automatically assembled onto the mask body in the above manner, and before releasing the clamping of the filter, an activity space is formed between the first groove wall of the filter and the mask body. This activity space can be used for the normal execution of the releasing action of the clamping and pressing component without interfering with the mask body, thus effectively avoiding product damage during the assembly process.

[0008] Furthermore, the clamping and pressing assembly includes a clamping member, a clamping drive member and an end pressing member, there are at least two clamping members, the clamping drive member is used to drive the clamping member to clamp the first end edge of the filter, and the end pressing member is used to press the first end.

[0009] By adopting the above technical solution, during the process of press-fitting the filter into the mounting hole, the end pressing member pressed against the first end of the filter provides the press-fitting pressure, so as to achieve a stable press-fitting effect.

[0010] Furthermore, a clamping groove is provided at the end of the clamping member. When the clamping member clamps the first end edge of the filter under the driving force of the clamping drive member, the first end edge falls into the clamping groove, and the end of the clamping member extends into the annular groove; when the filter is in the avoidance position, a movable space for the end of the clamping member to move is formed between the first groove wall and the mask body.

[0011] By adopting the above technical solution, the clamping groove is arranged to facilitate stable clamping of the filter.

[0012] Furthermore, the clamping groove is in a V-shaped groove shape, and has a first clamping wall and a second clamping wall forming an angle, the first clamping wall and the second clamping wall are arranged along the pressing direction, and the second clamping wall is used to resist the first groove wall of the filter.

[0013] By adopting the above technical solution, when clamping the first end edge of the filter, the clamping groove arranged in a V-shaped groove facilitates centering during clamping.

[0014] Furthermore, the elastic pressing assembly includes a main body pressing piece and an elastic piece, the main body pressing piece is used to press the mask body, and the main body pressing piece can move from a first position to a second position relative to the clamping pressing assembly in a direction away from the pressing direction, and the elastic piece is used to provide an elastic force to move the main body pressing piece from the second position to the first position; when the clamping pressing assembly completely presses the filter into the mounting hole of the mask body, the main body pressing piece is in the second position.

[0015] Furthermore, the elastic pressure assembly also includes a fixed sleeve, which is relatively fixed to the clamping pressure assembly, and the fixed sleeve is provided with a sliding hole, the main pressure piece is slidably inserted into the sliding hole, and the main pressure piece has a buffering pressure portion at one end close to the mask body.

[0016] Furthermore, the assembly device also includes a rotary material transfer mechanism, which includes a rotary clamping assembly and a material transfer drive assembly. The rotary clamping assembly is used to clamp and rotate the filter, and the material transfer drive assembly is used to drive the rotary clamping assembly to move the filter to a clamping station. The filter at the clamping station is used to be clamped by the clamping and pressing assembly.

[0017] Furthermore, the rotating clamping assembly includes two matching clamping jaws, the two clamping jaws are matched to clamp on two opposite sides of the annular groove of the filter, and the opposite side edges of the two clamping jaws are provided with V-shaped clamping grooves.

[0018] Furthermore, the driving assembly includes a first driving module, a first movable part, a second driving module and a second movable part, the first driving module is connected to the frame of the assembly device, and the first driving module is used to drive the first movable part to move along the pressing direction; the second driving module is connected to the first movable part, and the second driving module is used to drive the second movable part to move in a direction perpendicular to the pressing direction; the clamping and pressing assembly is connected to the second movable part.

[0019] The second object of the present application is to provide a filter assembly process for a mask, which adopts the following technical solution: A filter assembly process for a mask, using the filter assembly device for a mask, comprises the following steps: Clamping and aligning, clamping the filter and aligning the filter with the mounting hole position of the mask body; Press-fit the filter, move the filter along the press-fit direction close to the mounting hole, and stop moving when the second end of the filter passes through the mounting hole and the inner edge of the mounting hole is embedded in the annular groove of the filter; The filter is pulled up, and the clamping and pressing assembly drives the filter to move in a direction away from the press-fitting direction to an avoidance position, during which the elastic pressing assembly presses against the mask body to prevent the mask body from completely leaving the assembly station; wherein, when the filter is in the avoidance position, a movable space is formed between the first groove wall of the filter and the mask body for the clamping and pressing assembly to release the filter; Release the filter, and the clamping and pressing assembly releases the clamping of the filter.

[0020] By adopting the above technical solution, the filter can be automatically assembled to the mask body, and before loosening the clamping of the filter, a movable space is formed between the first groove wall of the filter and the mask body. The movable space can be used for the normal loosening action of the clamping and pressing assembly without interfering with the mask body, thereby effectively avoiding product damage during the assembly process.

[0021] In summary, the present application includes at least one of the following beneficial technical effects: The filter can be automatically assembled onto the mask body, and before releasing the clamping of the filter, an activity space is formed between the first groove wall of the filter and the mask body. This activity space can allow the normal execution of the release action of the clamping and pressing component without interfering with the mask body, thereby effectively avoiding product damage during the assembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the mask body and a filter including an extension section pointed out in the background art of the present application; Figure 2 is a schematic diagram of the mask body and a filter without an extension section pointed out in the background art of the present application; Figure 3 is a schematic diagram of the mask body and the filter in the embodiment of the present application; Figure 4 is an overall schematic diagram of the filter assembly device for the mask in the embodiment of the present application; Figure 5 is an overall schematic diagram of the clamping and pressing mechanism in the embodiment of the present application; Figure 6 is a schematic diagram of the main body limiting component in the embodiment of the present application; Figure 7 is a schematic diagram of the clamping and pressing component and the elastic pressing component in the embodiment of the present application; Figure 8 is a schematic diagram of the cooperation relationship between the clamping and pressing component and the filter in the embodiment of the present application; Figure 9 is a schematic diagram of the filter assembled onto the mask body and the main body pressing piece in the second position of pressing the mask body in the embodiment of the present application; Figure 10 is a schematic diagram of the clamping and pressing mechanism and the material transfer driving component in the embodiment of the present application; Figure 11 is a schematic diagram of the cooperation relationship between the material transfer driving component and the filter in the embodiment of the present application.

[0023] Description of the reference numerals in the drawings: 1. Main body limiting component; 11. Limiting groove; 2. Clamping and pressing mechanism; 21. Clamping and pressing component; 211. Clamping piece; 2111. Clamping groove; 2112. First clamping wall; 2113. Second clamping wall; 212. Clamping driving piece; 213. End pressing piece; 2131. Connecting part; 2132. Profiled pressing part; 22. Driving component; 221. First driving module; 222. First moving part; 223. Second driving module; 224. Second moving part; 23. Elastic pressing component; 231. Fixed sliding sleeve; 232. Main body pressing piece; 2321. Buffer pressing part; 233. Elastic part; 3. Rotary material transfer mechanism; 31. Rotary clamping component; 311. Rotary clamping cylinder; 312. Claw; 3121. V-shaped clamping groove; 32. Material transfer driving component; 100. Filter; 101. Fitting section; 102. Extension section; 103. Annular groove; 104. First end; 105. Second end; 106. First groove wall; 107. Second groove wall; 200. Mask main body; 201. Mounting hole; 202. First fitting ring; 203. Second fitting ring. Detailed implementation manners

[0024] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and should not be construed as a limitation to the present application.

[0025] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0026] In the description of the present application, it should be noted that, unless otherwise clearly specified and defined, the terms "install", "connect", and "couple" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0027] A face mask is a type of respiratory protection device that can be used to filter particulate matter or specific gases / vapors. The face mask mainly includes a face mask body that fits the facial protection area and a filter installed on the face mask body. Among them, the face mask body usually uses a flexible material to form good conformity and comfort, and an installation hole is provided on the face mask body. The filter is provided with a filter component inside and an annular groove adapted to the size of the installation hole on the outside of the filter. Align the filter with the installation hole and press-fit it so that the inner edge of the installation hole is embedded in the annular groove, thereby realizing the assembly of the filter and the face mask body.

[0028] Refer to Figure 1 , a conventional filter 100 usually has a certain height along its press-fitting direction, so that a mating section 101 that cooperates with the installation hole 201 and an extension section 102 that can be clamped by a clamping jaw are formed, so as to use the clamping jaw to clamp the extension section 102 of the filter 100 and perform press-fitting after aligning with the installation hole 201; but some filters 100 also remove the extension section 102 based on specific design requirements. Refer to Figure 2 As shown in the filter 100, the filter 100 only includes a mating section 101 that cooperates with the installation hole 201 of the face mask body 200 in its press-fitting direction. For such a filter 100, if the clamping jaw directly clamps the mating section 101 for press-fitting, there will be a problem that the clamping jaw interferes with the face mask body 200, which easily causes damage to the face mask body 200.

[0029] It should be noted that the assembly device and assembly process disclosed in the embodiments of the present application are all used to assemble the filter 100 into the installation hole 201 of the face mask body 200. For the convenience of subsequent description, the filter 100 and the face mask body 200 targeted in the embodiments of the present application will be briefly described here. Refer to Figure 3The movement direction of the filter 100 after being aligned with the mounting hole 201 and assembled to the mounting hole 201 is defined as the press-fitting direction. The filter 100 includes a first end 104 and a second end 105 that are separated from each other along the press-fitting direction. An annular groove 103 adapted to the mounting hole 201 is provided between the first end 104 and the second end 105. During the press-fitting process of the filter 100, the second end 105 passes through the mounting hole 201 so that the inner edge of the mounting hole 201 is embedded in the annular groove 103; the groove wall of the annular groove 103 close to the first end 104 is defined as the first groove wall 106, and the groove wall of the annular groove 103 close to the second end 105 is defined as the second groove wall 107. When the filter 100 is installed in the mounting hole 201 of the mask body 200, the inner edge of the mounting hole 201 is embedded in the annular groove 103; at the same time, the mask body 200 has a first fitting ring 202 for fitting with the first groove wall 106 and surrounding the mounting hole 201, and a second fitting ring 203 for fitting with the second groove wall 107 and surrounding the mounting hole 201.

[0030] In a first aspect, an embodiment of the present application discloses a filter assembly device for a mask.

[0031] Reference Figure 4 and Figure 5 The filter assembly device for the mask includes a main body limiting component 1 and a clamping and pressing mechanism 2, wherein the main body limiting component 1 is used to limit the mask body 200 at the assembly station; the clamping and pressing mechanism 2 is used to clamp and press the filter 100 into the mounting hole 201 of the mask body 200, and the clamping and pressing mechanism 2 can also pull the filter 100 to an avoidance position in a direction away from the pressing direction, so that the action of the clamping and pressing component 21 to release the filter 100 can be performed normally without interfering with the mask body 200.

[0032] Specifically, refer to Figure 4 and Figure 5, the clamping and pressing mechanism 2 includes a clamping and pressing component 21, a driving component 22, and an elastic pressing component 23; among them, the clamping and pressing component 21 is used to clamp the first end 104 edge of the filter 100, the driving component 22 is used to drive the clamping and pressing component 21 to move, and the filter 100 is moved to align with the installation hole 201 through the movement of the clamping and pressing component 21 and installed in the installation hole 201 along the pressing direction. The elastic pressing component 23 is used to press against the mask body 200. After the filter 100 is pressed into the installation hole 201, the clamping and pressing component 21 can clamp the filter 100 and move in the direction away from the pressing direction to the avoidance position; during the movement of the filter 100 to the avoidance position, the elastic pressing component 23 is used to prevent the mask body 200 from completely leaving the assembly station. The second fitting ring 203 of the mask body 200 abuts against the second groove wall 107 of the filter 100 to limit the filter 100 from disengaging from the installation hole 201. Since the mask body 200 is made of a flexible material, the mask body 200 will be stretched and deformed to a certain extent due to the drive of the filter 100, so that the gap between the first fitting ring 202 of the mask body 200 and the first groove wall 106 of the filter 100 gradually expands; finally, when the filter 100 is in the avoidance position, an activity space for the clamping and pressing component 21 to release the filter 100 can be formed between the first groove wall 106 and the first fitting ring 202 of the mask body 200, so that the action of the clamping and pressing component 21 to release the filter 100 can be carried out normally without interfering with the mask body 200, thus effectively avoiding product damage during the assembly process.

[0033] It should be noted that the filter assembly device for the mask further includes a frame for stably installing the main body limiting component 1 and the clamping and pressing mechanism 2; in some specific examples, both the main body limiting component 1 and the clamping and pressing mechanism 2 can be fixedly installed on the frame, so that the main body limiting component 1 and the clamping and pressing mechanism 2 have relatively fixed positions for coordinated actions; in other specific examples, the clamping and pressing mechanism 2 can be fixedly installed on the frame, and the clamping and pressing mechanism 2 is connected to the frame through a turntable or a conveying track, so that multiple groups of main body limiting components 1 can be provided, and multiple groups of main body limiting components 1 can be conveyed to the position for coordinated actions with the clamping and pressing mechanism 2 one by one through the turntable or the conveying track.

[0034] Similarly, it should be noted that the clamping and pressing component 21 clamps the filter 100 by the clamping structures included in the component approaching each other in contact and releases the filter 100 by the clamping structures moving away from each other; when the filter 100 is in the avoidance position, the activity space between the first groove wall 106 and the first fitting ring 202 of the mask body 200 is sufficient for the clamping structures in the clamping and pressing component 21 to move away from each other and separate from the filter 100 without contacting the mask body 200.

[0035] The main body limiting component 1 is a component used to limit the mask main body 200 at the assembly station. Refer to Figure 6 , in some specific embodiments, the main body limiting component 1 is set as a jig with a limiting groove 11, and the mask main body 200 is adapted to the limiting groove 11, so that the mask main body 200 can be restricted from moving by the limiting groove 11.

[0036] The driving component 22 in the clamping and pressing mechanism 2 is used to drive the clamping and pressing component 21 to move, so that the clamping and pressing component 21 can drive the filter 100 to be installed into the installation hole 201 of the mask main body 200.

[0037] In some specific embodiments, the driving component 22 can drive the clamping and pressing component 21 to move along a direction parallel to the pressing direction, and can also drive the clamping and pressing component 21 to move along a direction perpendicular to the pressing direction. Specifically, refer to Figure 5 , the driving component 22 includes a first driving module 221, a first moving part 222, a second driving module 223 and a second moving part 224; wherein, the first driving module 221 is fixedly connected to the frame of the assembly device through a mounting plate, and the first driving module 221 is used to drive the first moving part 222 to move along the pressing direction; in some specific examples, the first driving module 221 adopts a screw module driven by a motor, and the first moving part 222 is configured as a bracket bolted to the slider of the screw module. The second driving module 223 is connected to the first moving part 222, so that the second driving module 223 can move with the movement of the first moving part 222. At the same time, the second driving module 223 is used to drive the second moving part 224 to move along a direction perpendicular to the pressing direction; in some specific examples, the second driving module 223 adopts a linear cylinder, and the second moving part 224 is configured as a plate-shaped component bolted to the end of the moving rod of the linear cylinder. Correspondingly, the clamping and pressing component 21 is fixedly installed on the second moving part 224, so that the clamping and pressing component 21 can move with the movement of the second moving part 224.

[0038] The clamping and pressing component 21 in the clamping and pressing mechanism 2 is used to clamp the filter 100, and can install the filter 100 into the installation hole 201 of the mask main body 200 under the driving action of the driving component 22.

[0039] Refer to Figure 7In some specific embodiments, the clamping and pressing assembly 21 includes a clamping member 211, a clamping driving member 212, and an end pressing member 213. The clamping driving member 212 is configured as a clamping jaw 312 cylinder fixedly mounted on the second movable member 224, the clamping member 211 has two parts configured to extend along the assembly direction, the two clamping members 211 are respectively mounted on the two clamping jaws 312 of the clamping jaw 312 cylinder, and the clamping driving member 212 drives the clamping members 211 to move closer to or farther from each other, so that the two clamping members 211 cooperate to clamp or release the filter 100 from the first end 104 of the filter 100 along the opposite sides; wherein the two clamping members 211 approach and contact the first end 104 along the opposite sides to achieve clamping of the filter 100, and the two clamping members 211 move away and separate from the first end 104 along the opposite sides to achieve release of the filter 100. At the same time, the end pressing piece 213 is used to press the first end 104, and in the specific example, the end pressing piece 213 includes a connected connecting portion 2131 and a contoured pressing portion 2132, wherein the connecting portion 2131 is fixedly mounted on the cylinder body of the clamp 312 cylinder by bolts, and the pressing surface of the contoured pressing portion 2132 is similar in form to the first end 104 of the filter 100, thereby achieving a stable pressing effect in the process of pressing the filter 100 into the mounting hole 201.

[0040] Reference Figure 7 and Figure 8 In order to improve the stable clamping of the filter 100 by the clamping and pressing assembly 21, in some specific embodiments, the end of the clamping member 211 is provided with a clamping groove 2111. When the clamping member 211 clamps the edge of the first end 104 of the filter 100 under the driving force of the clamping driving member 212, the edge of the first end 104 falls into the clamping groove 2111, which facilitates the stable clamping of the filter 100. It can be understood that in the state of clamping the filter 100, the end of the clamping member 211 will also extend into the annular groove 103; when the filter 100 is in the avoidance position, an activity space for the end of the clamping member 211 to move can be formed between the first groove wall 106 and the mask body 200.

[0041] Further, refer to Figure 8 In some specific embodiments, the clamping groove 2111 is arranged in a V-shaped groove shape, and the clamping groove 2111 has a first clamping wall 2112 and a second clamping wall 2113. The first clamping wall 2112 and the second clamping wall 2113 have an angle to form a V-shaped groove; at the same time, the first clamping wall 2112 and the second clamping wall 2113 are arranged in sequence along the pressing direction. When the filter 100 is clamped, the end of the clamping member 211 will also extend into the annular groove 103, and at this time, the second clamping wall 2113 of the clamping groove 2111 abuts against the first groove wall 106 of the filter 100.

[0042] The elastic pressing component 23 is used to press against the mask body 200 so as to prevent the mask body 200 from completely leaving the assembly station during the movement of the filter 100 to the avoidance position.

[0043] Reference Figure 7 and Figure 9 In some specific embodiments, the elastic pressing component 23 includes a fixed sleeve 231, a main body pressing piece 232 and an elastic piece 233, wherein the fixed sleeve 231 is fixed to the end pressing piece 213 in the clamping pressing component 21 by bolts, and the fixed sleeve 231 is provided with a sliding hole extending along the pressing direction, and the main body pressing piece 232 is slidably penetrated into the sliding hole, so as to realize the relative displacement between the main body pressing piece 232 and the clamping pressing component 21 in the pressing direction; at the same time, the main body pressing piece 232 is used to press the mask body 200, and the end of the main body pressing piece 232 close to the mask body 200 has a buffer pressing portion 2321, which is used to avoid damage to the mask body 200 caused by the pressing process.

[0044] The main body pressing member 232 is configured to be able to move from a first position to a second position in a direction away from the press-fitting direction relative to the clamping pressing assembly 21. The elastic member 233 is a linear spring sleeved on the main body pressing member 232, and one end of the elastic member 233 is against the fixed sleeve 231, and the other end is against the buffer pressing portion 2321 through a gasket; Figure 9 When the clamping and pressing assembly 21 completely presses the filter 100 into the mounting hole 201 of the mask body 200, the main body pressing member 232 is in the second position. At this time, the elastic member 233 is compressed, so that the elastic member 233 can provide an elastic force to move the main body pressing member 232 from the second position to the first position.

[0045] It should be noted that, while the filter 100 moves to the avoidance position, the clamping and pressing assembly 21 moves in a direction away from the mask body 200, and the main body pressing member 232 maintains the pressure on the mask body 200 under the elastic force of the elastic member 233 to prevent the mask body 200 from completely leaving the assembly station; during this period, the clamping and pressing assembly 21 moves away from the mask body 200, and the main body pressing member 232 remains in contact with the mask body 200, that is, the main body pressing member 232 moves from the second position relative to the clamping and pressing assembly 21 to the first position.

[0046] Reference Figure 10 and Figure 11In other embodiments, the assembly device further comprises a rotary material transfer mechanism 3, the rotary material transfer mechanism 3 comprises a rotary clamping assembly 31 and a material transfer drive assembly 32, the rotary clamping assembly 31 is used to clamp and rotate the filter 100, the material transfer drive assembly 32 is used to drive the rotary clamping assembly 31 to move the filter 100 to the clamping station, and the filter 100 at the clamping station is used to be clamped by the clamping and pressing assembly 21. In some specific examples, the rotary clamping assembly 31 comprises a rotary clamping cylinder 311 and two matching jaws 312, the two jaws 312 are matched to clamp on opposite sides of the annular groove 103 of the filter 100, and the opposite side edges of the two jaws 312 are provided with V-shaped clamping grooves 3121, so as to stably clamp the filter 100. Accordingly, the material transfer drive assembly 32 is a screw module driven by a motor, and the rotary clamping cylinder 311 is installed on the slider of the screw module.

[0047] In a second aspect, the present application provides a filter assembly process for a mask, which uses the filter assembly device for a mask, and includes the following steps: S01, clamping and alignment.

[0048] The filter 100 is clamped and aligned with the mounting hole 201 of the mask body 200 .

[0049] S02. Press-fit the filter 100.

[0050] The filter 100 is moved along the press-fitting direction close to the mounting hole 201 , and the movement is stopped when the second end 105 of the filter 100 passes through the mounting hole 201 and the inner edge of the mounting hole 201 is embedded in the annular groove 103 of the filter 100 .

[0051] S03. Pull the filter 100.

[0052] The filter 100 is driven by the clamping and pressing component 21 to move in a direction away from the pressing direction to an avoidance position. During this period, the elastic pressing component 23 presses on the mask body 200 to prevent the mask body 200 from completely leaving the assembly station.

[0053] When the filter 100 is in the avoidance position, a movable space is formed between the first groove wall 106 of the filter 100 and the mask body 200 for the clamping and pressing component 21 to release the filter 100 .

[0054] S04 . Release the filter 100 .

[0055] The clamping and pressing assembly 21 releases the clamping of the filter 100 , thus completing the clamping and pressing of the filter 100 .

[0056] With the above process, the filter 100 can be automatically assembled onto the mask body 200, and before releasing the clamping of the filter 100, an activity space is formed between the first groove wall 106 of the filter 100 and the mask body 200. This activity space allows the normal execution of the release action of the clamping and pressing assembly 21 without interfering with the mask body 200, thus effectively avoiding damage to the products during the assembly process.

[0057] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0058] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present application. The scope of the present application is defined by the claims and their equivalents.

Claims

1. A filter assembly device for a mask, used to assemble a filter into a mounting hole of a mask body, characterized in that: It includes a main body limiting assembly and a clamping and pressing mechanism, wherein the main body limiting assembly is used to limit the mask main body to an assembly station; The moving direction of the filter after being aligned with the mounting hole and assembled to the mounting hole is defined as a press-fitting direction, the filter includes a first end and a second end that are separated from each other along the press-fitting direction, an annular groove adapted to the mounting hole is provided between the first end and the second end, and the second end passes through the mounting hole during the press-fitting process of the filter so that the inner edge of the mounting hole is embedded in the annular groove; the groove wall of the annular groove close to the first end is defined as a first groove wall, and the groove wall of the annular groove close to the second end is defined as a second groove wall; The clamping and pressing mechanism comprises a clamping and pressing assembly, a driving assembly and an elastic pressing assembly, wherein the clamping and pressing assembly is used to clamp the first end edge of the filter, the driving assembly is used to drive the clamping and pressing assembly to move so as to install the filter into the installation hole, and the elastic pressing assembly is used to press the mask body; After the filter is pressed into the mounting hole, the clamping and pressing assembly can clamp the filter and move it in a direction away from the pressing direction to an avoidance position; while the filter moves to the avoidance position, the elastic pressing assembly is used to prevent the mask body from completely separating from the assembly station; when the filter is in the avoidance position, a movable space is formed between the first groove wall and the mask body for the clamping and pressing assembly to release the filter.

2. The filter assembly device for a mask according to claim 1, characterized in that: The clamping and pressing assembly includes a clamping member, a clamping driving member and an end pressing member. There are at least two clamping members. The clamping driving member is used to drive the clamping member to clamp the first end edge of the filter, and the end pressing member is used to press the first end.

3. The filter assembly device for a mask according to claim 2, characterized in that: A clamping groove is provided at the end of the clamping member. When the clamping member clamps the first end edge of the filter under the driving force of the clamping drive member, the first end edge falls into the clamping groove, and the end of the clamping member extends into the annular groove; when the filter is in the avoidance position, a movable space for the end of the clamping member to move is formed between the first groove wall and the mask body.

4. The filter assembly device for a mask according to claim 3, characterized in that: The clamping groove is in a V-shaped groove shape, and has a first clamping wall and a second clamping wall forming an angle, the first clamping wall and the second clamping wall are arranged along the pressing direction, and the second clamping wall is used to resist the first groove wall of the filter.

5. The filter assembly device for a mask according to claim 1, characterized in that: The elastic pressing assembly includes a main body pressing piece and an elastic piece, the main body pressing piece is used to press the mask body, and the main body pressing piece can move from a first position to a second position relative to the clamping pressing assembly in a direction away from the pressing direction, and the elastic piece is used to provide an elastic force to move the main body pressing piece from the second position to the first position; when the clamping pressing assembly completely presses the filter into the mounting hole of the mask body, the main body pressing piece is in the second position.

6. The filter assembly device for a mask according to claim 5, characterized in that: The elastic pressure component also includes a fixed sleeve, which is relatively fixed to the clamping pressure component, and the fixed sleeve is provided with a sliding hole, the main pressure piece is slidably inserted into the sliding hole, and the main pressure piece has a buffering pressure portion at one end close to the mask body.

7. The filter assembly device for a mask according to claim 1, characterized in that: The assembly device also includes a rotary material transfer mechanism, which includes a rotary clamping assembly and a material transfer drive assembly. The rotary clamping assembly is used to clamp and rotate the filter, and the material transfer drive assembly is used to drive the rotary clamping assembly to move the filter to a clamping station. The filter at the clamping station is used to be clamped by the clamping and pressing assembly.

8. The filter assembly device for a mask according to claim 7, characterized in that: The rotating clamping assembly comprises two matching clamping jaws, the two clamping jaws are matched to clamp on two opposite sides of the annular groove of the filter, and the opposite side edges of the two clamping jaws are both provided with V-shaped clamping grooves.

9. The filter assembly device for a mask according to claim 1, characterized in that: The driving assembly includes a first driving module, a first movable part, a second driving module and a second movable part. The first driving module is connected to the frame of the assembly device, and the first driving module is used to drive the first movable part to move along the pressing direction; the second driving module is connected to the first movable part, and the second driving module is used to drive the second movable part to move in a direction perpendicular to the pressing direction; the clamping and pressing assembly is connected to the second movable part.

10. A filter assembly process for a mask, characterized in that: The filter assembly device for a mask according to any one of claims 1 to 9 comprises the following steps: Clamping and aligning, clamping the filter and aligning the filter with the mounting hole position of the mask body; Press-fit the filter, move the filter along the press-fit direction close to the mounting hole, and stop moving when the second end of the filter passes through the mounting hole and the inner edge of the mounting hole is embedded in the annular groove of the filter; The filter is pulled up, and the clamping and pressing assembly drives the filter to move in a direction away from the press-fitting direction to an avoidance position, during which the elastic pressing assembly presses against the mask body to prevent the mask body from completely leaving the assembly station; wherein, when the filter is in the avoidance position, a movable space is formed between the first groove wall of the filter and the mask body for the clamping and pressing assembly to release the filter; Release the filter, and the clamping and pressing assembly releases the clamping of the filter.

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