Optical methane gas sensor packaging structure and special packaging equipment thereof

Abstract

The invention discloses an optical methane gas sensor packaging structure and special packaging equipment thereof, and relates to the technical field of sensor packaging, the packaging structure comprises a cover body and a base, the cover body comprises a shell and a cap body, the cap body is arranged at the top of the shell, gas holes are uniformly formed in the top surface of the cap body, and the base is correspondingly matched with the bottom of the inner side of the shell; a first matching groove and a second matching groove are formed in the two sides of the top face in the shell correspondingly, matching holes are formed in the first matching groove and the second matching groove correspondingly, and grooves communicated with the matching holes are formed in the top face of the shell. The gas guiding effect of the sensor shell is improved, external impurities are prevented from entering the shell, the cleanliness of an optical path in a cavity is protected, the detection accuracy is improved, in addition, the deformed sensor shell can be detected in time, the base and parts of the base can be protected, in addition, the parts on the base can be cleaned, and the detection efficiency is improved. And meanwhile, the permeability of the detection hole in the shell can be detected, and the detection hole can be cleaned in time when being blocked.

Description

Technical Field

[0001] The present invention relates to the technical field of sensor packaging, and in particular to an optical methane gas sensor packaging structure and a special packaging device thereof. Background Art

[0002] Gas sensor is a key detection device that can convert specific type and concentration information in gas into electrical signals that are easy to receive and process. Gas sensor packaging technology aims to integrate gas sensitive elements and related circuits in a closed package to protect the sensor from interference from the external environment and improve its stability and reliability.

[0003] A Chinese patent with application number 2021210099146 discloses a packaging structure of a MEMS gas sensor chip, including a base, a sensor chip is arranged in the middle of the top of the base, a plurality of pins are arranged at the bottom of the base, and the top of the base and the top of the sensor chip are connected by gold wire, wherein a rubber limiting ring is fixedly arranged around the top of the base, a sealing cap is arranged above the rubber limiting ring, an air pipe is arranged at the top of the sealing cap, a plurality of telescopic components are arranged inside the circumference of the air pipe, a breathable film and a filter are respectively arranged in the middle and top of the air pipe, and air holes are opened on both sides of the top of the sealing cap.

[0004] The Chinese patent application number 2020108812883 discloses a packaging device and packaging method for sensor production, which belongs to the technical field of packaging equipment. A packaging device for sensor production includes a box body, a support block is fixedly connected to the lower end of the box body, one side of the support block is fixedly connected to a first motor, the output end of the first motor is fixedly connected to a first rotating rod, the end of the first rotating rod away from the first motor is fixedly connected to a first clamping plate, and the other side of the support block is fixedly connected to a first telescopic column.

[0005] However, the gas conduction effect of the packaged sensor housing is poor, and external impurities can easily enter the sensor, affecting the detection effect. In addition, the sensor housing is prone to deformation during processing and transportation, resulting in damage to sensor components during packaging. After long-term use, the housing and the base will deviate, affecting the packaging accuracy. In addition, during the processing, transportation and storage of the sensor housing, external impurities will enter the detection hole, causing the detection hole to be blocked, affecting the monitoring accuracy. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the existing defects, provide an optical methane gas sensor packaging structure and a dedicated packaging device thereof, improve the gas conduction effect of the sensor housing, effectively prevent the entry of external impurities, improve the accuracy of detection, and timely detect the deformed sensor housing, effectively prevent the packaging of the deformed sensor housing and the base, protect the base and its components, in addition, the components on the base can be cleaned, and the permeability of the detection hole on the housing can be detected, and the detection hole can be cleaned in time when it is blocked, which can effectively solve the problems in the background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions: On the one hand, the present invention provides an optical methane gas sensor packaging structure, comprising a cover body and a base, wherein the cover body comprises a shell and a cap body, and the cap body is arranged on the top of the shell; The top surface of the cap body is evenly provided with air holes; The base is matched with the inner bottom of the shell.

[0008] Furthermore, a first matching groove and a second matching groove are respectively provided on both sides of the top surface of the shell, matching holes are provided in the first matching groove and the second matching groove, a groove penetrating the matching holes is provided on the top surface of the shell, and the matching holes and the air holes together form an inner cavity optical path of the cover body; The cap body is a hollow structure with a transparent bottom, and a flange is provided on the bottom surface of the cap body, and the flange is fixedly connected to the inner surface of the groove; A pin is provided through the middle of the base, a detection module is provided on the top of the pin, and components in the detection module are matched with the first matching groove and the second matching groove.

[0009] On the other hand, the present invention also provides a special packaging device, which utilizes the optical methane gas sensor packaging structure as described above to realize the packaging of the sensor, including a pressing unit, wherein the pressing unit includes a base, a support arm is provided on one side of the top of the base, a pressing cylinder is penetrated through the top of the support arm, a pressing rod is provided at the bottom telescopic end of the pressing cylinder, and the pressing rod is a hollow structure; The bottom surface of the pressure rod is provided with an air nozzle, the interior of the pressure rod is provided with an air pressure sensor, and a pressure sensor is provided between the top of the pressure rod and the telescopic end of the pressing cylinder; A feeding unit is provided on the top of the machine base, and a positioning unit for limiting the position of the base is provided on the feeding unit; A transfer unit for transferring the cover body is provided in the middle of the support arm, and a clamping unit for clamping the cover body is provided on the transfer unit; The feeding unit comprises an air pump and a slide rail arranged on the top of the machine base, and the output end of the air pump is communicated with the side surface of the pressure rod through an air pipe.

[0010] Preferably, the pressing unit further comprises a belt conveying module for conveying the cover body, the belt conveying module is arranged at the inner bottom of the support arm, and a material guiding seat is arranged at the top of the machine base.

[0011] Preferably, the slide rail is internally rotatably connected to a screw rod, the slide rail is internally slidably connected to a slide seat, the bottom of the slide seat is threadedly connected to the screw rod, one side of the machine base is provided with a belt transmission mechanism for driving the screw rod to rotate, and the air pump is arranged on the side of the slide rail.

[0012] Preferably, the positioning unit includes a support and an electromagnetic latch, the supports are arranged at equal intervals on the top of the slide, a rotating cylinder is provided on the top of the support, the top output shaft of the rotating cylinder is provided with an annular seat, the top surface of the annular seat is evenly provided with embedding grooves, the electromagnetic latch is arranged in the embedding groove, an elastic telescopic rod is vertically provided at the pin end of the electromagnetic latch, and an arc block is horizontally provided at the top telescopic end of the elastic telescopic rod.

[0013] Preferably, the transfer unit comprises a limit groove and a transfer cylinder, the limit groove is provided on the side of the support arm, a slider is slidably connected in the limit groove, a mounting seat is rotatably connected on the side of the slider, the transfer cylinder is provided on the side of the mounting seat, and a lifting cylinder is provided between the bottom surface of the limit groove and the slider; A connecting plate is provided on the side surface of the end of the mounting seat, and an electric telescopic rod is movably provided on the side surface of the sliding block, and the telescopic end of the electric telescopic rod is movably connected to the connecting plate.

[0014] Preferably, the clamping unit comprises a connecting seat, the connecting seat is arranged at the telescopic end of the transfer cylinder, a frame seat is rotatably connected to the connecting seat through a rotating shaft, movable seats are symmetrically slidably connected to the inner sides of the frame seat, clamping blocks are symmetrically arranged between the ends of the movable seats, and an arc groove is opened on the inner side of the clamping block to fit the side surface of the cover body; An adjusting motor is arranged on the side of the connecting seat, and an output shaft of the adjusting motor is fixedly connected to the end of the rotating shaft.

[0015] Preferably, a bidirectional screw is rotatably connected in the frame seat, and both sides of the bidirectional screw are respectively threadedly connected to the movable seats on both sides, and a drive motor is provided at the end of the frame seat, and the output shaft of the drive motor is fixedly connected to the bidirectional screw; A flip motor is provided between the telescopic end of the transfer cylinder and the connecting seat, and the output shaft of the flip motor is fixedly connected to the connecting seat.

[0016] Compared with the prior art, the present invention has the following advantages: 1. After the cover body is moved to the top of the base, the present invention starts the flip motor to adjust the cover body to an opening facing upward, and then uses the pressing cylinder to drive the pressure rod to extend the pressure rod into the cover body. When the pressure sensor detects that the pressure value is greater than the set threshold, it is determined that the cover body is deformed. At this time, the pressure rod is moved away from the cover body, and the cover body is moved to the top of the material guide seat, so that the clamping block releases the cover body, and the cover body falls on the material guide seat and is discharged to the outside along the inclined surface of the material guide seat, thereby realizing the sorting of deformed cover bodies.

[0017] 2. Before the cover body corresponding to the position of the base and the pressure rod is transferred to the top of the base, the present invention uses an air pump to introduce gas into the pressure rod, and the gas is discharged to the base through the air nozzle. At the same time, the pressure rod is moved up and down, so that the pressure rod is intermittently close to the base to generate an airflow with fluctuating air pressure, thereby improving the cleaning effect. The rotating cylinder is used to drive the annular seat to drive the base to rotate, thereby achieving thorough cleaning of the base and completely removing attached impurities.

[0018] 3. The present invention adjusts the cover body to open upward so that the pressure rod extends into the cover body, and uses an air pump to supply air to the inside of the pressure rod. The gas enters the cover body through the air nozzle. When the air pressure value in the pressure rod is greater than the set air pressure threshold, the pressure rod is separated from the cover body, and the air pump is used to intermittently supply air to the pressure rod. The air nozzle discharges a fluctuating airflow through the matching hole to clear the air hole, and uses a flip motor to drive the connecting seat to rotate 180 degrees forward and backward, and blows air to both ends of the cover body in turn, thereby further improving the cleaning effect of impurities blocking the air hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the packaging structure of the present invention; Figure 2 It is a schematic diagram of the split structure of the packaging structure of the present invention; Figure 3 It is a schematic diagram of the internal structure of the packaging structure of the present invention.

[0020] Figure 4 It is a schematic diagram of the structure of the present invention; Figure 5 It is a structural schematic diagram of another angle of the present invention; Figure 6 It is a schematic diagram of the shaft side structure of the present invention; Figure 7 This is a schematic diagram of the positioning unit structure of the present invention; Figure 8 For the present invention Figure 7 The enlarged structural diagram at A in the middle; Fig. 9 It is a schematic diagram of the structure of the clamping unit of the present invention.

[0021] In the figure: 1, cover body; 101, shell; 102, cap body; 103, first matching groove; 104, second matching groove; 105, matching hole; 106, air hole; 107, base; 108, pin; 2, pressing unit; 201, machine base; 202, support arm; 203, pressing cylinder; 204, pressing rod; 205, belt transmission module; 206, material guide seat; 3, feeding unit; 301, slide rail; 302, screw rod; 303, slide seat; 304, belt transmission mechanism; 305, air pump; 306, air pipe; 4, positioning unit; 40 1. Support; 402. Rotating cylinder; 403. Annular seat; 404. Embedding groove; 405. Electromagnetic latch; 406. Elastic telescopic rod; 407. Arc block; 5. Transfer unit; 501. Limiting groove; 502. Sliding block; 503. Mounting seat; 504. Transfer cylinder; 505. Electric telescopic rod; 506. Lifting cylinder; 6. Clamping unit; 601. Flipping motor; 602. Connecting seat; 603. Frame seat; 604. Adjusting motor; 605. Movable seat; 606. Clamping block; 607. Driving motor; 608. Bidirectional screw. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] First embodiment See also Figure 1-3 The present embodiment provides an optical methane gas sensor packaging structure, including a cover body 1 and a base 107. The cover body 1 includes a shell 101 and a cap body 102. The cap body 102 is arranged on the top of the shell 101. The shell 101 and the cap body 102 are split structures during production and processing. In the packaging process, the shell 101 and the cap body 102 are fixed by welding or gluing. The first matching groove 103 and the second matching groove 104 are respectively opened on both sides of the top surface inside the shell 101. The first matching groove 103 and the second matching groove 104 are respectively adapted to the detection module components. The first matching groove 103 and the second matching groove 104 are both opened with matching holes 105. The matching holes 105 are used for the gas to meet and contact with the detection module to facilitate the detection of the incoming gas.

[0024] The top surface of the shell 101 is provided with a groove that passes through the matching hole 105. The cap body 102 is a hollow structure with a transparent bottom. The bottom surface of the cap body 102 is provided with a flange, and the flange is fixedly connected to the inner surface of the groove, that is, the flange and the inner surface of the groove are fixed by gluing or welding. The top surface of the cap body 102 is evenly provided with air holes 106, and the air holes 106 are used to filter external impurities to prevent impurities from entering the cap body 102 and the shell 101 and interfering with detection. The matching hole 105 and the air holes 106 together form the inner cavity optical path of the cover body.

[0025] The base 107 corresponds to the inner bottom of the shell 101. After the base 107 is fully matched with the inner bottom of the shell 101, the bottom surface of the base 107 is flush with the bottom end surface of the shell 101. A pin 108 runs through the middle of the base 107, and a detection module is provided on the top of the pin 108. The components in the detection module correspond to the first matching groove 103 and the second matching groove 104 to form a cover body 1. After the top of the shell 101 and the bottom of the cap body 102 are fixed together to form the cover body 1, the base 107 and the inner bottom side of the shell 101 are pressed and packaged. After the pressing and packaging is completed, they are immersed in external glue for sealing, so that the base 107 and the inner bottom side of the shell 101 are fixed and sealed.

[0026] Second embodiment See also Figure 4-9 The present embodiment provides a special packaging device, which utilizes the optical methane gas sensor packaging structure in the second embodiment to realize the packaging of the sensor, including a pressing unit 2, the pressing unit 2 including a base 201, a support arm 202 is provided on one side of the top of the base 201, a pressing cylinder 203 is penetrated through the top of the support arm 202, a pressing rod 204 is provided at the bottom telescopic end of the pressing cylinder 203, when the bottom end of the pressing rod 204 corresponds to the top of the supplied cover body 1, and the cover body 1 corresponds to the base 107, the extension of the telescopic end of the pressing cylinder 203 is used to drive the pressing rod 204 to move downward, so that the cover body 1 is buckled on the outside of the base 107.

[0027] The pressing unit 2 further includes a belt conveying module 205 for conveying the cover body 1 . The belt conveying module 205 is disposed at the inner bottom of the support arm 202 . The belt conveying module 205 adopts a belt conveying mechanism in the prior art to realize the loading of the cover body 1 .

[0028] A feeding unit 3 is provided on the top of the machine base 201, and a positioning unit 4 for limiting the base 107 is provided on the feeding unit 3. The feeding unit 3 realizes the feeding of the base 107 one by one by driving the positioning unit 4 to perform horizontal intermittent linear motion, so that the base 107 in each positioning unit 4 moves to the position corresponding to the pressure rod 204 in turn.

[0029] A transfer unit 5 for transferring the cover body 1 is provided in the middle of the support arm 202, and a clamping unit 6 for clamping the cover body 1 is provided on the transfer unit 5. After the clamping unit 6 clamps the cover body 1 on the belt conveyor module 205, the transfer unit 5 drives the clamping unit 6 to swing 90 degrees to the vicinity of the positioning unit 4 to realize the transfer of the cover body 1.

[0030] The feeding unit 3 includes a slide rail 301 arranged on the top of the machine base 201, and the internal rotation connection of the slide rail 301 is connected to the screw rod 302, and the internal sliding connection of the slide rail 301 is connected to the slide seat 303, and the bottom of the slide seat 303 is threadedly connected to the screw rod 302. One side of the machine base 201 is provided with a belt transmission mechanism 304 for driving the screw rod 302 to rotate. The belt transmission mechanism 304 is preferably a belt transmission mechanism in the prior art. The belt transmission mechanism 304 intermittently drives the screw rod 302 to rotate, thereby realizing the intermittent linear sliding of the slide seat 303, and then drives the positioning unit 4 to intermittently slide horizontally and linearly, thereby realizing the feeding of the base 107 one by one.

[0031] The positioning unit 4 includes a support 401 and an electromagnetic latch 405. The support 401 is evenly spaced at the top of the slide 303. A rotating cylinder 402 is provided on the top of the support 401. The top output shaft of the rotating cylinder 402 is provided with an annular seat 403. The rotating cylinder 402 is used to drive the annular seat 403 to rotate to realize the rotation of the base 107.

[0032] The top surface of the annular seat 403 is evenly provided with embedding grooves 404, and the electromagnetic latch 405 is arranged in the embedding groove 404. The pin end of the electromagnetic latch 405 is vertically provided with an elastic telescopic rod 406, and the top telescopic end of the elastic telescopic rod 406 is horizontally provided with an arc block 407. The pins of each electromagnetic latch 405 drive the elastic telescopic rod 406 to close together, and the arc block 407 can be used to abut against the side of the base 107 for limiting. The arrangement of the elastic telescopic rod 406 enables the arc block 407 to achieve elastic expansion and contraction in the vertical direction, so that the bottom surface of the shell 101 is pressed downward to be flush with the bottom surface of the base 107, and the arc block 407 can still effectively position the base 107 during the process of being pressed downward.

[0033] The transfer unit 5 includes a limit groove 501 and a transfer cylinder 504. The limit groove 501 is opened on the side of the support arm 202. A slider 502 is slidably connected in the limit groove 501. The side of the slider 502 is rotatably connected to the mounting seat 503. The transfer cylinder 504 is arranged on the side of the mounting seat 503. A lifting cylinder 506 is arranged between the bottom surface of the limit groove 501 and the slider 502. A connecting plate is arranged on the end side of the mounting seat 503. An electric telescopic rod 505 is movably arranged on the side of the slider 502. The telescopic end of the electric telescopic rod 505 is movably connected to the connecting plate. The mounting seat 503 is driven to rotate through the connecting plate by the extension and contraction of the electric telescopic rod 505, that is, the transfer cylinder 504 is rotated between the vertical state and the horizontal state, so as to transfer the cover body 1 on the belt conveyor module 205 to a position close to the positioning unit 4. The lifting cylinder 506 is used to realize the lifting and lowering of the clamping unit 6.

[0034] The clamping unit 6 includes a connecting seat 602, which is arranged at the telescopic end of the transfer cylinder 504. A frame seat 603 is rotatably connected to the connecting seat 602 through a rotating shaft. A movable seat 605 is symmetrically slidably connected to the inner sides of the frame seat 603. A clamping block 606 is symmetrically arranged between the ends of the movable seat 605. An arc groove is opened on the inner side of the clamping block 606 to fit the side of the cover body 1. A rubber pad is arranged in the arc groove to protect the outer circumference of the cover body 1. A bidirectional screw 6 is rotatably connected to the frame seat 603. 08. Both sides of the bidirectional screw 608 are threadedly connected with the movable seats 605 on both sides respectively. A driving motor 607 is provided at the end of the frame seat 603. The output shaft of the driving motor 607 is fixedly connected with the bidirectional screw 608. The driving motor 607 drives the bidirectional screw 608 to rotate. The bidirectional screw 608 uses the threads with opposite spiral directions on both sides to realize the opposite movement of the movable seats 605 on both sides, and the clamping blocks 606 on both sides can be used to clamp the cover body 1. The radius of the arc groove is the same as the radius of the cover body 1.

[0035] The transfer cylinder 504 is initially in a vertical state, and the movable seat 605 and the clamping block 606 are both perpendicular to the transfer cylinder 504 in the initial state.

[0036] An adjusting motor 604 is provided on the side of the connecting seat 602 , and the output shaft of the adjusting motor 604 is fixedly connected to the end of the rotating shaft. The adjusting motor 604 drives the frame seat 603 to rotate via the rotating shaft to adjust the position angle of the clamping block 606 .

[0037] When in use, the cover body 1 is placed on the conveyor belt of the belt conveyor module 205 at equal intervals, the base 107 is placed on the top of the annular seat 403, and the pin 108 on the bottom side of the middle part of the base 107 corresponds to the center hole of the annular seat 403, the belt conveyor module 205 is started, and the belt conveyor module 205 is intermittently operated to drive the cover body 1 to be intermittently conveyed, and when the cover body 1 is stagnant, it just corresponds to the clamping block 606 in the horizontal state, and at the same time, the belt transmission mechanism 304 is started to drive the screw rod 302 to rotate intermittently, so as to realize the intermittent feeding of the base 107 through the intermittent sliding of the slide seat 303, and it is synchronized with the intermittent conveyance of the cover body 1, that is, the conveyance of the base 107 and the cover body 1 is started and stopped synchronously, and when the base 107 is stagnant, it just corresponds to the position of the pressure rod 204.

[0038] When the cover body 1 and the base 107 are both in a stagnant state, the transfer cylinder 504 is started to extend to drive the horizontal clamping block 606 to move downward, so that the clamping blocks 606 on both sides are respectively located on both sides of the cover body 1, and then the driving motor 607 is started to close the clamping blocks 606 on both sides to clamp the cover body 1, and then the cover body 1 is moved upward by contraction of the transfer cylinder 504, and the electric telescopic rod 505 is started to drive the mounting seat 503 to rotate 90 degrees, so that the transfer cylinder 504 is rotated to a horizontal state. In this process, the adjusting motor 604 is used to drive the frame seat 603 to rotate, so that the central axis of the transfer cylinder 504 coincides with the central axis of the frame seat 603, and at the same time, the transfer cylinder 504 is extended, so that the cover body 1 moves horizontally to a position corresponding to the base 107 below. Figure 6 As shown, the lifting cylinder 506 is then started to drive the slider 502 to move downward, so that the bottom opening of the cover body 1 is attached to the top surface of the base 107, and then the driving motor 607 is slightly reversed to reduce the clamping force of the clamping block 606 on the cover body 1, and finally the pressing cylinder 203 is started to drive the pressing rod 204 to move downward to apply downward pressure on the cover body 1, so that the cover body 1 can move downward and snap onto the outside of the base 107, completing the combination between the cover body 1 and the base 107, that is, realizing the packaging of the gas sensor, when the cover body 1 moves downward, the arc block 407 is pressed downward by the action of the elastic telescopic rod 406 until the bottom surface of the cover body 1 contacts the top surface of the annular seat 403, and at this time the top surface of the arc block 407 is flush with the top surface of the annular seat 403.

[0039] After the cover body 1 and the base 107 are buckled together, the transfer unit 5 and the clamping unit 6 are restored to the initial state, and the belt transmission module 205 and the belt transmission mechanism 304 are started synchronously, so that the subsequent buckled cover body 1 and the base 107 continue to be fed and transported.

[0040] However, during the processing, storage and transportation of the cover body 1, the cover body 1 is easily deformed, which makes it difficult for the cover body 1 to be buckled with the base 107. Moreover, when the deformed cover body 1 is buckled with the base 107 under the pressure of the pressure rod 204, the base 107 and the detection module thereon are damaged. Therefore, the following improvements are made: A flip motor 601 is provided between the telescopic end of the transfer cylinder 504 and the connecting seat 602. The output shaft of the flip motor 601 is fixedly connected to the connecting seat 602. The flip motor 601 is used to drive the connecting seat 602 to rotate around the axis of the transfer cylinder 504 to realize a 180-degree flip of the clamping unit 6.

[0041] A pressure sensor is provided between the top of the pressure rod 204 and the telescopic end of the pressing cylinder 203. The pressure sensor is used to detect the magnitude of the reverse pressure exerted on the pressure rod 204 from the cover body 1. The outer circumferential radius of the pressure rod 204 is the same as the inner circumferential radius of the shell 101.

[0042] A material guide seat 206 is provided on the top of the machine base 201 for discharging the deformed cover body 1 .

[0043] When in use, after the transfer unit 5 rotates the cover body 1 90 degrees to the top of the base 107, the flip motor 601 is started, and the flip motor 601 is used to drive the connecting seat 602 to flip 180 degrees, so that the opening of the cover body 1 faces upward. At this time, the opening of the cover body 1 corresponds to the position of the pressure rod 204. Secondly, the pressing cylinder 203 is started to drive the pressure rod 204 to move downward, so that the pressure rod 204 extends into the interior of the cover body 1, and the outer circumferential surface of the pressure rod 204 is in contact with the inner circumferential surface of the cover body 1.

[0044] When the cover body 1 is deformed, the end of the pressure rod 204 cannot match the inner side of the cover body 1, which will cause the pressure rod 204 to be unable to extend into the cover body 1 normally, and then when the pressure rod 204 extends into the interior of the cover body 1, it will generate resistance to the pressure rod 204, causing the pressure rod 204 to increase the force of the pressure sensor. When the pressure sensor detects that its own pressure value is greater than the set pressure threshold, it actively determines that the cover body 1 is deformed. At this time, the pressing cylinder 203 is contracted to drive the pressure rod 204 away from the cover body 1, and then the transfer cylinder 504 is contracted to drive the cover body 1 to move to the top of the material guide seat 206, and then the driving motor 607 is rotated in the opposite direction to make the clamping blocks 606 on both sides move away from each other, so that the cover body 1 is detached and falls onto the material guide seat 206, and is discharged to the outside along the inclined surface of the material guide seat 206, and the belt conveyor module 205 is started to drive the cover body 1 to continue to be conveyed, and the transfer unit 5 and the clamping unit 6 are used to continue to clamp the next cover body 1 and the base 107 for buckling and packaging.

[0045] In addition, during the transportation and storage process of the base 107, dust and impurities are easily attached to the detection module on the base 107, which affects the normal detection of the gas. Therefore, the following improvements are made: The pressure rod 204 is a hollow structure, and a gas nozzle is provided on the bottom surface of the pressure rod 204 .

[0046] The feeding unit 3 also includes an air pump 305, which is arranged on the side of the slide rail 301. The output end of the air pump 305 is connected to the side of the pressure rod 204 through the air pipe 306. The high-pressure gas generated by the air pump 305 is input into the pressure rod 204 through the air pipe 306 and discharged from the air nozzle at the bottom of the pressure rod 204.

[0047] During use, when the base 107 is transferred to the position corresponding to the pressure rod 204 and the cover body 1 has not been transferred to the top of the base 107, the pressure rod 204 corresponds to the position of the base 107, the air pump 305 is started, and high-pressure gas is supplied to the pressure rod 204 through the air pipe 306. The high-pressure gas is discharged to the base 107 through the air nozzle to clean the impurities on the top of the base 107.

[0048] In order to make the cleaning more comprehensive and thorough, while the high-pressure gas is discharged, the pressing cylinder 203 is used to drive the pressure rod 204 to move up and down, so that the pressure rod 204 intermittently approaches the base 107, and the fluctuating airflow is used to clean the base 107, and the rotating cylinder 402 is started to drive the annular seat 403 to rotate forward and reverse to drive the base 107 to rotate, so as to clean the components on the base 107 to completely remove the attached impurities, and the rotation of the base 107 is used to throw out the cleaned impurities, and the maximum gas pressure on the base 107 is not enough to damage the components on the base 107.

[0049] In addition, the air holes 106 of the mask body 1 are easily clogged by impurities during transportation and storage, which in turn affects the air permeability of the mask body 1 and causes large errors in detection. In order to solve the above problems: An air pressure sensor is disposed inside the pressure rod 204 , and the air pressure sensor is used to monitor the gas pressure value inside the pressure rod 204 .

[0050] During use, after cleaning the base 107, the cover body 1 is transferred to the corresponding position above the base 107, and the cover body 1 is detected to see if it is deformed according to the above detection method. After the detection is completed, the opening of the cover body 1 is kept upward, and the pressure rod 204 is kept inserted into the cover body 1 unchanged, and the air pump 305 is started to supply air to the inside of the pressure rod 204, and the air is supplied to the inside of the cover body 1 through the air nozzle, and the air pressure value inside the pressure rod 204 is monitored by the air pressure sensor. When the air hole 106 on the cover body 1 is blocked, it will affect the fluidity of the gas in the cover body 1, causing the air pressure value inside the pressure rod 204 to increase. Therefore, when the pressure sensor detects that the air pressure value inside the pressure rod 204 is greater than the set air pressure threshold, it is actively determined that the air hole 106 is blocked. At this time, the pressing cylinder 203 is used to The contraction causes the pressure rod 204 to separate from the cover body 1, and the air pump 305 is used to intermittently supply air to the pressure rod 204, and the air nozzle discharges a fluctuating airflow to blow into the inside of the cover body 1, and the fluctuating airflow reaches the air hole 106 through the matching hole 105 to clear the air hole 106. At the same time, the flip motor 601 is used to rotate 180 degrees back and forth, so that the opening of the cover body 1 and the end of the cap body 102 correspond to the pressure rod 204 in turn, so as to blow air to the two ends of the cover body 1. When the cap body 102 corresponds to the pressure rod 204, the fluctuating airflow directly acts on the air hole 106, further improving the cleaning effect of impurities blocking the air hole 106, and at the same time, the impurities attached to the inner wall of the cover body 1 are removed. After the air hole 106 is cleared, the cover body 1 is adjusted to the opening facing downward to continue packaging.

[0051] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An optical methane gas sensor packaging structure, comprising a cover (1) and a base (107), characterized in that: The cover body (1) comprises a shell (101) and a cap body (102), wherein the cap body (102) is arranged on the top of the shell (101); The top surface of the cap body (102) is evenly provided with air holes (106); The base (107) corresponds to the inner bottom of the shell (101).

2. The optical methane gas sensor packaging structure according to claim 1, characterized in that: A first matching groove (103) and a second matching groove (104) are respectively provided on both sides of the top surface inside the shell (101); matching holes (105) are provided in the first matching groove (103) and the second matching groove (104); a groove penetrating the matching holes (105) is provided on the top surface of the shell (101); the matching holes (105) and the air holes (106) together form an inner cavity optical path of the cover body (1); The cap body (102) is a hollow structure with a transparent bottom, and a flange is provided on the bottom surface of the cap body (102), and the flange is fixedly connected to the inner surface of the groove; A pin (108) is provided through the middle of the base (107), a detection module is provided on the top of the pin (108), and components in the detection module are correspondingly matched with the first matching groove (103) and the second matching groove (104).

3. A dedicated packaging device, which utilizes the optical methane gas sensor packaging structure according to any one of claims 1 to 2 to realize sensor packaging, comprising a pressing unit (2), characterized in that: The pressing unit (2) comprises a machine base (201), a support arm (202) is provided on one side of the top of the machine base (201), a pressing cylinder (203) is provided through the top of the support arm (202), a pressing rod (204) is provided at the bottom telescopic end of the pressing cylinder (203), and the pressing rod (204) is a hollow structure; The bottom surface of the pressing rod (204) is provided with an air nozzle, the interior of the pressing rod (204) is provided with an air pressure sensor, and a pressure sensor is provided between the top of the pressing rod (204) and the telescopic end of the pressing cylinder (203); A feeding unit (3) is provided on the top of the machine base (201), and a positioning unit (4) for limiting the position of the base (107) is provided on the feeding unit (3); A transfer unit (5) for transferring the cover body (1) is provided in the middle of the support arm (202); a clamping unit (6) for clamping the cover body (1) is provided on the transfer unit (5); The feeding unit (3) comprises an air pump (305) and a slide rail (301) arranged on the top of the machine base (201); the output end of the air pump (305) is connected to the side of the pressure rod (204) through an air pipe (306).

4. The dedicated packaging equipment according to claim 3, characterized in that: The pressing unit (2) further comprises a belt conveying module (205) for conveying the cover body (1); the belt conveying module (205) is arranged at the inner bottom of the support arm (202); and a material guide seat (206) is arranged at the top of the machine base (201).

5. The dedicated packaging equipment according to claim 3, characterized in that: The interior of the slide rail (301) is rotatably connected to a screw rod (302), the interior of the slide rail (301) is slidably connected to a slide seat (303), the bottom of the slide seat (303) is threadedly connected to the screw rod (302), and one side of the machine base (201) is provided with a belt transmission mechanism (304) for driving the screw rod (302) to rotate; The air pump (305) is arranged on the side of the slide rail (301).

6. The dedicated packaging equipment according to claim 5, characterized in that: The positioning unit (4) comprises a support (401) and an electromagnetic latch (405); the support (401) is arranged at equal intervals on the top of the slide (303); a rotating cylinder (402) is arranged on the top of the support (401); an annular seat (403) is arranged on the top output shaft of the rotating cylinder (402); an embedding groove (404) is evenly formed on the top surface of the annular seat (403); the electromagnetic latch (405) is arranged in the embedding groove (404); an elastic telescopic rod (406) is vertically arranged at the pin end of the electromagnetic latch (405); and an arc block (407) is horizontally arranged at the top telescopic end of the elastic telescopic rod (406).

7. The dedicated packaging equipment according to claim 3, characterized in that: The transfer unit (5) comprises a limiting groove (501) and a transfer cylinder (504); the limiting groove (501) is provided on a side surface of the support arm (202); a slider (502) is slidably connected in the limiting groove (501); a side surface of the slider (502) is rotatably connected to a mounting seat (503); the transfer cylinder (504) is provided on a side surface of the mounting seat (503); and a lifting cylinder (506) is provided between the bottom surface of the limiting groove (501) and the slider (502); A connecting plate is provided on the side of the end of the mounting seat (503), and an electric telescopic rod (505) is movably provided on the side of the sliding block (502), wherein the telescopic end of the electric telescopic rod (505) is movably connected to the connecting plate.

8. The dedicated packaging equipment according to claim 7, characterized in that: The clamping unit (6) comprises a connecting seat (602), the connecting seat (602) being arranged at the telescopic end of the transfer cylinder (504), a frame seat (603) being rotatably connected inside the connecting seat (602) via a rotating shaft, movable seats (605) being symmetrically slidably connected to the two sides of the frame seat (603), clamping blocks (606) being symmetrically arranged between the ends of the movable seats (605), and an arc-shaped groove being formed on the inner side of the clamping block (606) and being fitted with the side surface of the cover body (1); An adjusting motor (604) is provided on the side of the connecting seat (602), and the output shaft of the adjusting motor (604) is fixedly connected to the end of the rotating shaft.

9. The dedicated packaging equipment according to claim 8, characterized in that: A bidirectional screw (608) is rotatably connected inside the frame seat (603), and two sides of the bidirectional screw (608) are respectively threadedly connected to the movable seats (605) on both sides. A driving motor (607) is provided at the end of the frame seat (603), and the output shaft of the driving motor (607) is fixedly connected to the bidirectional screw (608); A flip motor (601) is provided between the telescopic end of the transfer cylinder (504) and the connecting seat (602), and an output shaft of the flip motor (601) is fixedly connected to the connecting seat (602).

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