阅读说明：本技术 一种材料透气性检测箱 (Material gas permeability detection case ) 是由 鞠光荣 于 2020-06-05 设计创作，主要内容包括：本发明公开的本发明所述的一种材料透气性检测箱,包括箱体,所述箱体内右侧设有传送腔,所述传送腔内设有传送装置,所述传送装置包括转动设于所述传送腔前后壁之间且上下对称的传送轴,上下两侧所述传送轴外圆面后侧固定设有传送轮,上下两侧所述传送轮之间绕设有传送带,所述传送带前端面均匀分布且固定设有检测框,左右两侧所述检测框内设有左右贯通的安装腔,本发明通过在检测材料两侧形成密闭空间,再对检测材料两侧密闭空间同时抽出空气达到真空状态,然后通入定量的空气,利用巧妙的结构对单位时间通过检测材料的气体量进行检测,同时本发明利用结构能够自动完成检测板的进料、检测和区分工作,使用方便。(The invention discloses a material air permeability detection box, which comprises a box body, wherein a transmission cavity is arranged on the right side in the box body, a transmission device is arranged in the transmission cavity, the transmission device comprises transmission shafts which are rotatably arranged between the front wall and the rear wall of the transmission cavity and are symmetrical up and down, transmission wheels are fixedly arranged on the rear sides of the outer circular surfaces of the transmission shafts on the upper side and the lower side, a transmission belt is wound between the transmission wheels on the upper side and the lower side, the front end surface of the transmission belt is uniformly distributed and fixedly provided with detection frames, and installation cavities which are communicated left and right are arranged in the detection frames on the left side and the right side The detection and the distinguishing work are convenient to use.)

1. The utility model provides a material gas permeability detection case, includes the box, its characterized in that: a conveying cavity is arranged at the right side in the box body, a conveying device is arranged in the conveying cavity and comprises a conveying shaft which is rotatably arranged between the front wall and the rear wall of the conveying cavity and is symmetrical up and down, conveying wheels are fixedly arranged at the rear sides of the outer circular surfaces of the conveying shaft at the upper side and the lower side, a conveying belt is wound between the conveying wheels at the upper side and the lower side, the front end surface of the conveying belt is uniformly distributed and fixedly provided with a detection frame, a left through installation cavity and a right through installation cavity are arranged in the detection frame at the left side and the right side, a feeding device is arranged at the upper left side of the conveying cavity and comprises a feeding cavity which is communicated with the upper left side of the conveying cavity, a feeding port is fixedly arranged at the upper side of the left wall of the conveying cavity, the right end surface of the feeding port is abutted against the detection frame right opposite to the, a detection plate is arranged in the feeding cavity and on the right side of the feeding block in a sliding manner, eight detection plates are arranged on the upper side of the feeding cavity, the detection plates can slide left and right, the detection plates can just slide into the installation cavity, the right side of the lower wall is communicated with the feeding cavity and is provided with a discharge channel, the lower end of the detection plate on the rightmost side in the feeding cavity is positioned in the discharge channel, the lower end surface of the detection plate is abutted against the upper end surface of the detection plate in the feeding cavity, a detection device is arranged on the lower side of the feeding cavity and comprises a detection cavity which is arranged on the lower side of the feeding cavity and is communicated with the transmission cavity, a left vacuum cover is arranged in the detection cavity in a sliding manner, a left vacuum cavity with a right opening is arranged on the right end surface of the left vacuum cover, a right vacuum cover is fixedly arranged on the front wall of the, the distinguishing device is arranged on the lower side of the detection cavity and comprises a discharge cavity which is arranged on the lower side of the detection cavity and communicated with the conveying cavity, a discharge plate is arranged in the discharge cavity and can slide left and right, a cam cavity is arranged on the upper side of the left wall of the discharge cavity in a communicating manner, a discharge channel is arranged on the lower wall of the discharge cavity in a communicating manner, a qualified cavity is arranged on the lower side of the discharge channel in a communicating manner, a unqualified cavity which is right opposite to the detection frame on the lower side is arranged on the lower wall of the conveying cavity in a communicating manner, cam mechanisms are respectively arranged on the left side of the feeding block, the left side of the left vacuum cover and the left side of the discharge plate, each cam mechanism comprises a rotating shaft which is respectively and rotatably arranged on the left side of the lower wall of the feeding cavity, the left side of the lower wall of the detection cavity and the left side of the lower wall of, the upper side belt pulley chamber upper wall and downside rotate between the belt pulley chamber lower wall and be equipped with the band pulley axle, the outer disc of band pulley axle just is in the fixed driving pulley that is equipped with of band pulley intracavity, driving pulley with around being equipped with the belt between the driving pulley, in the box just be in conveying chamber rear side with ejection of compact chamber left side is equipped with intermittent type control mechanism, intermittent type control mechanism coordinated control the conveying axle with the band pulley axle is intermittent type and rotates.

2. The material air permeability detection box of claim 1, characterized in that: the detection device comprises a detection plate, a detection plate and a discharge plate, wherein detection holes are formed in the detection plate in a left-right through mode, the upper side and the lower side of each detection hole are respectively communicated with fixing grooves, detection materials are fixedly arranged between the left wall and the right wall of each fixing groove on the upper side and the lower side, magnets are fixedly arranged on the upper side and the lower side in the left end face of the detection plate, electromagnets are fixedly arranged on the upper side and the lower side in the right end face of the discharge plate, the electromagnets are opposite to the magnets fixed in the left end face of.

3. The material air permeability detection box of claim 1, characterized in that: the inside energy horizontal slip be equipped with the push pedal, the push pedal right-hand member face with the leftmost detect the board left end face and offset, the push pedal left end face with fixedly connected with feeding spring between the right side wall.

4. The material air permeability detection box of claim 1, characterized in that: the left side just the longitudinal symmetry is equipped with opening seal groove left in the detection frame left end face, and the right side just the longitudinal symmetry is equipped with opening seal groove right in the detection frame right-hand member face, the upside just the longitudinal symmetry is equipped with the ascending seal groove of opening in the detection frame up end, the downside just the longitudinal symmetry is equipped with opening decurrent seal groove in the detection frame lower section, the fixed sealing strip that is equipped with in both sides about the left side vacuum casing right-hand member face, the sealing strip can get into in the seal groove.

5. The material air permeability detection box of claim 1, characterized in that: just right in the box the fixed vacuum pump that is equipped with of terminal surface before the vacuum cover of right side, vacuum pump rear end face intercommunication is equipped with right vacuum tube, right vacuum tube rear end intercommunication right vacuum cavity, right vacuum tube front end left side is equipped with the vacuum tube chamber, vacuum tube chamber intercommunication right vacuum tube front end left side is equipped with left vacuum tube, left vacuum tube left side rear end intercommunication left side vacuum cavity, terminal surface left side intercommunication is equipped with the chamber of ventilating before the detection chamber, the antetheca internal fixation of ventilating chamber is equipped with the breather pump, breather pump rear end face intercommunication is equipped with the breather pipe, the breather pipe extends to it passes to detect the intracavity left side vacuum cover left side in left side vacuum cavity intercommunication.

6. The material air permeability detection box of claim 5, wherein: the left heating module is fixedly arranged on the front side and the rear side of the left wall of the left vacuum cavity, and the right heating module is fixedly arranged on the front side and the rear side of the right wall of the right vacuum cavity.

7. The material air permeability detection box of claim 5, wherein: the fixed cover that detects that is equipped with of right side vacuum casing right-hand member face, be equipped with the centrifugal wheel chamber in the detection cover, it is equipped with the detection axle to rotate between the centrifugal wheel chamber left and right sides wall, the detection axle extends to left side in the vacuum chamber of right side, the fixed blade that detects that is equipped with of outer disc of detection axle left end, detection axle right-hand member off-plate face just is in the fixed centrifugal wheel that is equipped with of centrifugal wheel intracavity, be equipped with annular centrifugal chamber in the centrifugal wheel, centrifugal chamber circumference wall upside with it is equipped with the centrifugal bar to fix between the outer disc of detection axle, the outer disc of centrifugal bar gliding is equipped with the centrifugation piece from top to bottom, under the centrifugation piece terminal surface with fixedly connected with centrifugal spring between the outer disc.

8. The material air permeability detection box of claim 1, characterized in that: the fixed cam that is equipped with of axis of rotation upper end excircle face, the fixed connecting rod axle that is equipped with in cam up end left side, the excircle face rotates and is equipped with the connecting rod on the connecting rod axle, connecting rod up end right side hinged joint has the hinge bar, in the feeding chamber the hinge bar right-hand member face fixed connection the feeding piece left end face detects the intracavity the hinge bar right-hand member face fixed connection left side vacuum cover left end face, the cam intracavity the hinge bar right-hand member face fixed connection ejection of compact board left end face.

9. The material air permeability detection box of claim 1, characterized in that: the intermittent control mechanism comprises a gear cavity arranged on the lower side behind the transmission cavity, the lower side of the transmission shaft extends to the gear cavity and is rotatably connected with the rear wall of the gear cavity, a transmission sheave is fixedly arranged on the outer circular surface of the rear end of the transmission shaft, a transmission shaft is rotatably arranged between the front and rear walls of the gear cavity and on the left side of the transmission shaft, a transmission driver plate is fixedly arranged on the outer circular surface of the transmission shaft and is matched with the transmission sheave, a gear wheel is fixedly arranged on the outer circular surface of the transmission shaft and on the front side of the transmission driver plate, a power motor is fixedly arranged on the left side of the rear wall of the gear cavity, a driving shaft is rotatably arranged between the front and rear walls of the gear cavity and on the left side of the transmission shaft, the front end surface of the power motor is dynamically linked with the rear end surface of the driving shaft, a pinion meshed with the gear wheel is fixedly, the utility model discloses a reciprocating type automatic discharging device, including gear chamber, drive shaft, outer disc, actuating shaft, drive chamber, gear chamber front end and be in discharge chamber left side is equipped with the transmission chamber, the drive shaft front end extends to in the transmission chamber, the outer disc of drive shaft front end is fixed and is equipped with drive bevel gear, the rotation of drive chamber lower wall is equipped with, the outer disc is fixed be equipped with drive bevel gear engaged with driven bevel gear, the outer disc of upper end is fixed and is equipped with reciprocal driver plate, band.

Technical Field

The invention relates to the technical field of detection, in particular to a material air permeability detection box.

Background

In production and life, some materials, especially woven fabrics, need to be subjected to air permeability detection, the air permeability directly affects the comfort of the fabrics, the air permeability of the fabrics refers to the performance of the fabrics for penetrating through air under the condition that pressure difference exists between two sides of the fabrics, namely, the air volume flowing through the two sides of the fabrics in unit time under the specified pressure difference is in unit time, the air permeability is difficult to effectively detect in the general production process, and some air permeability detection devices have limited functions and also need manual auxiliary operation, so that the materials cannot be efficiently detected and distinguished. The present invention sets forth a device that solves the above problems.

Disclosure of Invention

The technical problem is as follows: the detection of the air permeability of the material is difficult, and the operation of a common detection device is not simple and convenient enough, and the detection efficiency is not high.

In order to solve the problems, the material air permeability detection box is designed in the embodiment, and comprises a box body, wherein a conveying cavity is arranged on the right side in the box body, a conveying device is arranged in the conveying cavity and comprises a conveying shaft which is rotatably arranged between the front wall and the rear wall of the conveying cavity and is symmetrical up and down, conveying wheels are fixedly arranged on the rear sides of the outer circular surfaces of the conveying shaft on the upper side and the lower side, a conveying belt is wound between the conveying wheels on the upper side and the lower side, the front end surface of the conveying belt is uniformly distributed and fixedly provided with a detection frame, a left through installation cavity and a right through installation cavity are arranged in the detection frame on the left side and the right side, an up and down through installation cavity is arranged in the detection frame on the upper side and the lower side, a feeding device is arranged on the upper side of the left side of the conveying cavity and, the right end face of the feeding port is abutted against the detection frame right opposite to the right side of the feeding cavity, the feeding block capable of sliding left and right in the feeding cavity is provided with a detection plate capable of sliding right and left in the feeding cavity, the upper side of the feeding cavity is provided with eight detection plates capable of sliding left and right, the detection plates can just slide into the installation cavity, the right side of the lower wall is communicated with the feeding cavity and is provided with a discharge channel, the lower end of the detection plate on the rightmost inner side is positioned in the discharge channel, the lower end face of the detection plate is abutted against the upper end face of the detection plate in the feeding cavity, the lower side of the feeding cavity is provided with a detection device, the detection device comprises a detection cavity which is arranged on the lower side of the feeding cavity and is communicated with the conveying cavity, a left vacuum cover is arranged in the detection cavity and capable of sliding left and right, and the right, a right vacuum cover is fixedly arranged on the front wall of the conveying cavity and opposite to the left vacuum cover, a right vacuum cavity with a left opening is arranged on the left end face of the right vacuum cover, a distinguishing device is arranged on the lower side of the detecting cavity and is communicated with the conveying cavity, a discharging plate is arranged in the discharging cavity and can slide left and right, a cam cavity is communicated with the upper side of the left wall of the discharging cavity, a discharging channel is communicated with the lower wall of the discharging cavity, a qualified cavity is communicated with the lower side of the discharging channel, a unqualified cavity opposite to the detecting frame on the lower side is communicated with the lower wall of the conveying cavity, cam mechanisms are respectively arranged on the left side of the feeding block, the left side of the left vacuum cover and the left side of the discharging plate, and comprise rotating shafts which are respectively and rotatably arranged on the left side of the lower wall of the feeding cavity, the left side of the, the outer disc of axis of rotation is fixed and is equipped with driving pulley, feeding chamber left side wall downside detect chamber left side wall downside with cam chamber left side wall downside communicates respectively and is equipped with the pulley chamber, the upside pulley chamber upper wall and downside rotate between the pulley chamber lower wall and be equipped with the band pulley axle, the outer disc of band pulley axle just is in the fixed driving pulley that is equipped with of band pulley intracavity, driving pulley with around being equipped with the belt between the driving pulley, just be in the box conveying chamber rear side with ejection of compact chamber left side is equipped with intermittent type control mechanism, intermittent type control mechanism coordinated control the conveying axle with the band pulley axle is intermittent type and rotates.

Preferably, the detection plate is internally provided with detection holes in a left-right through manner, the upper side and the lower side of each detection hole are respectively communicated with a fixing groove, detection materials are fixedly arranged between the left wall and the right wall of the fixing groove on the upper side and the lower side, magnets are fixedly arranged on the upper side and the lower side in the left end face of the detection plate, electromagnets are fixedly arranged on the upper side and the lower side in the right end face of the discharge plate, the electromagnets are opposite to the magnets fixed in the left end face of the detection plate on the right side of the discharge cavity, and the electromagnets can attract.

Preferably, the inside energy horizontal slip be equipped with the push pedal, the push pedal right-hand member face with the leftmost side the detection board left end face offsets, the push pedal left end face with fixedly connected with feeding spring between the right side wall.

Preferably, the left side just the longitudinal symmetry is equipped with opening seal groove left in the detection frame left end face, the right side just the longitudinal symmetry is equipped with opening seal groove right in the detection frame right-hand member face, the upside just the longitudinal symmetry is equipped with the ascending seal groove of opening in the detection frame up end, the downside just the longitudinal symmetry is equipped with opening decurrent seal groove in the detection frame lower cross section, the fixed sealing strip that is equipped with in both sides about the left side vacuum casing right end face, the sealing strip can get into in the seal groove.

Preferably, just right in the box the fixed vacuum pump that is equipped with of terminal surface before the vacuum hood of right side, vacuum pump rear end face intercommunication is equipped with right vacuum tube, right vacuum tube rear end intercommunication right vacuum cavity, right vacuum tube front end left side is equipped with the vacuum tube chamber, vacuum tube chamber intercommunication right vacuum tube front end left side is equipped with left vacuum tube, left vacuum tube left end intercommunication left side vacuum cavity, detection chamber front end face left side intercommunication is equipped with the chamber of ventilating, the antetheca internal fixation of ventilating cavity is equipped with the breather pump, breather pump rear end face intercommunication is equipped with the breather pipe, the breather pipe extends to detect the intracavity pass left side vacuum hood left side in left side vacuum cavity intercommunication.

Preferably, the front side and the rear side of the left wall of the left vacuum cavity are fixedly provided with a left heating module, and the front side and the rear side of the right wall of the right vacuum cavity are fixedly provided with a right heating module.

Preferably, the fixed detection cover that is equipped with of right side vacuum casing right-hand member face, be equipped with the centrifugal wheel chamber in the detection cover, it is equipped with the detection axle to rotate between the wall about the centrifugal wheel chamber, the detection axle extends to left in the vacuum chamber of right side, the fixed detection blade that is equipped with of outer disc of detection axle left end, detection axle right-hand member end outer disc just is in the fixed centrifugal wheel that is equipped with of centrifugal wheel intracavity, be equipped with annular centrifugal chamber in the centrifugal wheel, centrifugal chamber circumference wall upside with it is fixed with the centrifugal bar to detect between the outer disc of axle, the outer disc of centrifugal bar can be gliding from top to bottom be equipped with the centrifugation piece, under the centrifugation piece terminal surface with fixedly connected with centrifugal spring between the outer disc of detection axle.

Preferably, a cam is fixedly arranged on the outer circular surface of the upper end of the rotating shaft, a connecting rod shaft is fixedly arranged on the left side of the upper end surface of the cam, a connecting rod is arranged on the outer circular surface of the upper end of the connecting rod shaft in a rotating mode, the right side of the upper end surface of the connecting rod is hinged to a hinged rod, the right end surface of the hinged rod is fixedly connected with the left end surface of the feeding block and the left end surface of the detection block, the right end surface of the hinged rod is fixedly connected with the left end surface of the left vacuum cover and the right end surface of.

Preferably, the intermittent control mechanism comprises a gear cavity arranged on the lower side of the rear end of the transmission cavity, the rear end of the transmission shaft extends into the gear cavity and is rotatably connected with the rear wall of the gear cavity, a transmission sheave is fixedly arranged on the outer circular surface of the rear end of the transmission shaft, a transmission shaft is rotatably arranged between the front wall and the rear wall of the gear cavity and on the left side of the transmission shaft, a transmission dial is fixedly arranged on the outer circular surface of the transmission shaft, the transmission dial is matched with the transmission sheave, a large gear is fixedly arranged on the front side of the transmission dial on the outer circular surface of the transmission shaft, a power motor is fixedly arranged on the left side of the rear wall of the gear cavity, a driving shaft is rotatably arranged between the front wall and the rear wall of the gear cavity and on the left side of the transmission shaft, the front end surface of the power motor is dynamically, the transmission ratio between the pinion and the gear wheel is four to one, the front end of the gear cavity is provided with a transmission cavity on the left side of the discharge cavity, the front end of the driving shaft extends into the transmission cavity, a driving bevel gear is fixedly arranged on the outer circular surface of the front end of the driving shaft, the lower wall of the transmission cavity rotates, a driven bevel gear meshed with the driving bevel gear is fixedly arranged on the outer circular surface, a reciprocating drive plate is fixedly arranged on the outer circular surface of the upper end, the lower end of the belt wheel shaft extends into the transmission cavity, and a reciprocating grooved wheel matched with the reciprocating drive plate is fixedly arranged on the outer circular surface of the lower end of the transmission cavity.

The invention has the beneficial effects that: according to the invention, the closed spaces are formed on two sides of the detection material, the air is simultaneously pumped out from the closed spaces on the two sides of the detection material to reach a vacuum state, then quantitative air is introduced, and the quantity of gas passing through the detection material in unit time is detected by utilizing an ingenious structure.

Drawings

For ease of illustration, the invention is described in detail by the following specific examples and figures.

FIG. 1 is a schematic view of the overall structure of a material air permeability detection box according to the present invention;

FIG. 2 is a schematic view of the structure in the direction "A-A" of FIG. 1;

FIG. 3 is a schematic view of the structure in the direction "B-B" of FIG. 1;

FIG. 4 is an enlarged view of the structure of "C" of FIG. 1;

FIG. 5 is an enlarged view of the structure of "D" of FIG. 1;

fig. 6 is an enlarged view of the structure of "E" of fig. 2.

Detailed Description

The invention will now be described in detail with reference to fig. 1-6, for ease of description, the orientations described below will now be defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The invention relates to a material air permeability detection box, which comprises a box body 11, wherein a transmission cavity 12 is arranged on the right side in the box body 11, a transmission device 101 is arranged in the transmission cavity 12, the transmission device 101 comprises transmission shafts 13 which are rotatably arranged between the front wall and the rear wall of the transmission cavity 12 and are symmetrical up and down, transmission wheels 14 are fixedly arranged on the rear sides of the outer circular surfaces of the transmission shafts 13 on the upper side and the lower side, a transmission belt 15 is wound between the transmission wheels 14 on the upper side and the lower side, the front end surface of the transmission belt 15 is uniformly distributed and fixedly provided with a detection frame 16, left and right through installation cavities 17 are arranged in the detection frames 16 on the left side and the right side, up and down through installation cavities 17 are arranged in the detection frames 16 on the upper side and the lower side, a feeding device 102 is arranged on the left upper side of the transmission cavity 12, the feeding cavity 19 communicated with the, the right end face of the feed port 21 abuts against the detection frame 16 right opposite to the right side of the feed cavity 19, the feed block 20 capable of sliding left and right in the feed cavity 19, the detection plate 32 capable of sliding right and in the feed cavity 19 is arranged on the right side of the feed block 20, the upper side of the feed cavity 19 is provided with 31, the eight detection plates 32 capable of sliding left and right in 31 are arranged on the upper side of the feed cavity 19, the detection plates 32 can just slide into the installation cavity 17, the lower wall right side of 31 is communicated with the feed cavity 19, the lower end of the detection plate 32 on the rightmost side in 31 is positioned in the discharge channel 82, the lower end face of the detection plate 32 abuts against the upper end face of the detection plate 32 in the feed cavity 19, the lower side of the feed cavity 19 is provided with the detection device 103, the detection device 103 comprises the detection cavity 22 arranged on the lower side of the feed cavity 19 and communicated with the conveying cavity 12, and the left vacuum cover, the right end face of the left vacuum cover 23 is provided with a left vacuum cavity 24 with a rightward opening, the front wall of the conveying cavity 12 is just right to the left vacuum cover 23, the left end face of the right vacuum cover 40 is provided with a right vacuum cavity 41 with a leftward opening, the lower side of the conveying cavity 22 is provided with a distinguishing device 104, the distinguishing device 104 comprises a discharge cavity 26 arranged at the lower side of the conveying cavity 12 and communicated with the lower side of the detecting cavity 22, a discharge plate 27 capable of sliding left and right in the discharge cavity 26 is arranged, the upper side of the left wall of the discharge cavity 26 is communicated with a cam cavity 83, the lower wall of the discharge cavity 26 is communicated with a discharge channel 29, the lower side of the discharge channel 29 is communicated with a qualified cavity 42, the lower wall of the conveying cavity 12 is communicated with a qualified cavity 30 right to the lower side of the detecting frame 16, the left side of the feed block 20, the left side of the left vacuum cover 23 and the left side, the cam mechanism 105 comprises rotating shafts 66 respectively rotatably arranged on the left side of the lower wall of the feeding cavity 19, the left side of the lower wall of the detection cavity 22 and the left side of the lower wall of the cam cavity 83, a driving belt wheel 67 is fixedly arranged on the outer circular surface of the rotating shaft 66, a belt wheel cavity 64 is respectively and communicatively arranged on the lower side of the left wall of the feeding cavity 19, the lower side of the left wall of the detection cavity 22 and the lower side of the left wall of the cam cavity 83, a belt wheel shaft 63 is rotatably arranged between the upper wall of the upper belt wheel cavity 64 and the lower wall of the lower belt wheel cavity 64, a driving pulley 65 is fixedly arranged on the outer circumferential surface of the pulley shaft 63 and in the pulley cavity 64, a belt 68 is wound between the driving pulley 65 and the driving pulley 67, an intermittent control mechanism 106 is arranged in the box body 11 and on the rear side of the conveying cavity 12 and the left side of the discharging cavity 26, the intermittent control mechanism 106 controls the conveying shaft 13 and the pulley shaft 63 to rotate intermittently in a linkage manner.

Beneficially, the detection plate 32 is provided with a detection hole 37 penetrating left and right therein, the upper side and the lower side of the detection hole 37 are respectively provided with a fixing groove 34 in a communicating manner, the detection material 33 is fixedly arranged between the left wall and the right wall of the fixing groove 34 at the upper side and the lower side, the upper side and the lower side in the left end face of the detection plate 32 are fixedly provided with magnets 36, the upper side and the lower side in the right end face of the discharge plate 27 are fixedly provided with electromagnets 28, the electromagnets 28 are opposite to the magnets 36 fixed in the left end face of the detection plate 32 at the right side of the discharge chamber 26, and.

Advantageously, a push plate 38 is arranged in the 31 and can slide left and right, the right end face of the push plate 38 abuts against the left end face of the left-most detection plate 32, and a feeding spring 39 is fixedly connected between the left end face of the push plate 38 and the right wall of the 31.

Beneficially, the left side in the detection frame 16 left end face and the longitudinal symmetry be equipped with opening seal groove 18 left, the right side in the detection frame 16 right end face and the longitudinal symmetry be equipped with opening seal groove 18 right, the upside in the detection frame 16 up end face and the longitudinal symmetry be equipped with opening ascending seal groove 18, the downside in the detection frame 16 lower section and the longitudinal symmetry be equipped with opening decurrent seal groove 18, left side vacuum cover 23 right end face upper and lower both sides are fixed and are equipped with sealing strip 25, sealing strip 25 can get into in the seal groove 18.

Beneficially, in the box 11 and just right the fixed vacuum pump 46 that is equipped with of right vacuum hood 40 front end face, vacuum pump 46 rear end face intercommunication is equipped with right vacuum tube 45, right vacuum tube 45 rear end intercommunication right vacuum cavity 41, right vacuum tube 45 front end left side is equipped with vacuum tube cavity 47, vacuum tube cavity 47 intercommunication right vacuum tube 45 front end left side is equipped with left vacuum tube 48, the left rear end of left vacuum tube 48 communicates left vacuum cavity 24, it is equipped with ventilation cavity 49 to detect chamber 22 front end face left side intercommunication, ventilation cavity 49 antetheca internal fixation is equipped with breather pump 50, breather pump 50 rear end face intercommunication is equipped with breather pipe 51, breather pipe 51 extends to pass in the detection chamber 22 left side of left vacuum hood 23 in left side of left vacuum cavity 24 communicates.

Beneficially, the left vacuum chamber 24 is fixedly provided with left heating modules 43 at the front and rear sides of the left wall thereof, and the right vacuum chamber 41 is fixedly provided with right heating modules 44 at the front and rear sides of the right wall thereof.

Beneficially, a detection cover 73 is fixedly arranged on the right end face of the right vacuum cover 40, a centrifugal wheel cavity 74 is arranged in the detection cover 73, a detection shaft 75 is rotatably arranged between the left wall and the right wall of the centrifugal wheel cavity 74, the detection shaft 75 extends leftwards into the right vacuum cavity 41, a detection blade 76 is fixedly arranged on the outer circular face of the left end of the detection shaft 75, a centrifugal wheel 77 is fixedly arranged on the outer circular face of the right end face of the detection shaft 75 and in the centrifugal wheel cavity 74, an annular centrifugal cavity 78 is arranged in the centrifugal wheel 77, a centrifugal rod 79 is fixedly arranged between the upper side of the circumferential wall of the centrifugal cavity 78 and the outer circular face of the detection shaft 75, a centrifugal block 80 is arranged on the outer circular face of the centrifugal rod 79 in a vertically sliding manner, and a centrifugal spring 81 is fixedly connected between the lower end face of the centrifugal block.

Beneficially, a cam 69 is fixedly arranged on the outer circular surface of the upper end of the rotating shaft 66, a connecting rod shaft 70 is fixedly arranged on the left side of the upper end surface of the cam 69, a connecting rod 71 is rotatably arranged on the outer circular surface of the upper end of the connecting rod shaft 70, a hinged rod 72 is hinged to the right side of the upper end surface of the connecting rod 71, the right end surface of the hinged rod 72 in the feeding cavity 19 is fixedly connected to the left end surface of the feeding block 20, the right end surface of the hinged rod 72 in the detection cavity 22 is fixedly connected to the left end surface of the left vacuum cover 23, and the right end surface of the hinged rod 72 in the cam cavity 83.

Advantageously, the intermittent control mechanism 106 comprises a gear cavity 52 arranged at the rear lower side of the transmission cavity 12, the rear end of the transmission shaft 13 at the lower side extends into the gear cavity 52 and is rotatably connected to the rear wall of the gear cavity 52, a transmission grooved wheel 53 is fixedly arranged on the outer circumferential surface of the rear end of the transmission shaft 13, a transmission shaft 54 is rotatably arranged between the front wall and the rear wall of the gear cavity 52 and on the left side of the transmission shaft 13, a transmission dial 55 is fixedly arranged on the outer circumferential surface of the transmission shaft 54, the transmission dial 55 is matched with the transmission grooved wheel 53, a large gear 56 is fixedly arranged on the outer circumferential surface of the transmission shaft 54 and on the front side of the transmission dial 55, a power motor 58 is fixedly arranged on the left side in the rear wall of the gear cavity 52, a driving shaft 57 is rotatably arranged between the front wall and the rear wall of the gear cavity 52 and on the, a pinion 59 meshed with the bull gear 56 is fixedly arranged on the outer circular surface of the driving shaft 57, the transmission ratio between the pinion 59 and the bull gear 56 is four to one, a transmission cavity 60 is arranged at the front end of the gear cavity 52 and on the left side of the discharging cavity 26, the front end of the driving shaft 57 extends into the transmission cavity 60, a driving bevel gear 61 is fixedly arranged on the outer circular surface of the front end of the driving shaft 57, the lower wall of the transmission cavity 60 is provided with 85 in a rotating manner, a driven bevel gear 87 meshed with the driving bevel gear 61 is fixedly arranged on the outer circular surface of the 85, a reciprocating drive plate 86 is fixedly arranged on the outer circular surface of the upper end of the 85, the lower end of the belt wheel shaft 63 extends into the transmission cavity 60, and a reciprocating grooved pulley 62 matched with the reciprocating drive plate 86 is fixedly arranged on.

The following will describe in detail the use steps of a material air permeability detection box in the present text with reference to fig. 1 to 6:

in the initial state, the push plate 38 is at the left limit position, the detection plate 32 in the feeding cavity 19 is at the left limit position, the feeding block 20 is at the left limit position, the left vacuum cover 23 is at the left limit position, the discharging plate 27 is at the left limit position, and the centrifugal block 80 is at the position closest to the detection shaft 75.

During operation, the power motor 58 is started, the driving shaft 57 is driven to rotate through power connection, and then the pinion 59 is driven to rotate, the large gear 56 is driven to rotate through gear engagement, and then the transmission shaft 54 is driven to rotate, and then the transmission dial 55 is driven to rotate, when the transmission dial 55 rotates for half a circle, the transmission grooved wheel 53 is driven to rotate for a quarter circle, and then the transmission shaft 13 is driven to rotate for a quarter circle, and then the lower transmission wheel 14 is driven to rotate for a quarter circle, and then the upper transmission wheel 14 is driven to rotate through the transmission belt 15, and then the detection frame 16 on the front end face of the transmission belt 15 is driven to rotate, the upper detection frame 16 moves to be opposite to the right end face of the feeding block 20, the next detection frame 16 moves to be opposite to the right end face of the left vacuum cover 23, the next detection frame 16 moves to be opposite to the right end face of the discharging plate 27, meanwhile, when the driving plate 55 rotates for half a turn, the large gear 56 rotates for half a turn, the small gear 59 rotates for two turns, the small gear 59 rotates to drive the driving shaft 57 to rotate for two turns, further to drive the driving bevel gear 61 to rotate for two turns, further to drive the driven bevel gear 87 to rotate for two turns through gear engagement, further to drive the reciprocating driving plate 86 to rotate for two turns, further to drive the reciprocating grooved wheel 62 to rotate for half a turn through gear engagement, further to drive the belt wheel shaft 63 to rotate for half a turn, further to drive the driving belt wheel 65 to rotate for half a turn, further to drive the driving belt wheel 67 to rotate for half a turn through the belt 68, further to drive the rotating shaft 66 to rotate for half a turn, further to drive the cam 69 to rotate for half a turn, further to drive the connecting rod shaft 70 to rotate to the right limit position, further to drive the connecting rod 71 to rotate to the right limit, further driving the feeding block 20, the left vacuum cover 23 and the discharging plate 27 to move to the right limit position, the feeding block 20 moving to the right end face to abut against the left end face of the detecting plate 32 in the feeding cavity 19, further driving the detecting plate 32 in the feeding cavity 19 to move to the right to the mounting cavity 17 opposite to the feeding block 20, when the driving dial 55 continues to rotate for half a turn, and simultaneously the rightmost detecting plate 32 in the driving plate 31 falls into the feeding cavity 19, the pushing plate 38 is pushed to move to the right by the elasticity of the feeding spring 39, and further the detecting plate 32 in the feeding cavity 19 moves to the rightmost detecting plate 32 to abut against the right wall of the feeding cavity 19, repeating the above actions, further moving the left vacuum cover 23 to the right limit position, the sealing strip 25 entering into the sealing groove 18, forming a closed space on the left side and the right side of the detecting material 33 opposite to the left vacuum cover 23, at this time, starting the vacuum pump 46, and pumping out, then the left heating module 43 and the right heating module 44 are opened to heat the left vacuum chamber 24 and the right vacuum chamber 41, the ventilation pump 50 is started to introduce a certain amount of gas into the left vacuum chamber 24 through the ventilation pipe 51, the gas enters the right vacuum chamber 41 through the detection material 33 to drive the detection blade 76 to rotate, further drive the detection shaft 75 to rotate, further drive the centrifugal wheel 77 to rotate, further drive the centrifugal rod 79 to rotate, further drive the centrifugal block 80 to be far away from the detection shaft 75, further drive the centrifugal spring 81 to stretch, the amount of gas entering the right vacuum chamber 41 in unit time is different, the distance from the centrifugal block 80 to the detection shaft 75 is different, further judge the air permeability of the detection material 33 is good or poor, then the driving dial 55 is continuously rotated for half a turn to repeat the above actions, further move the discharging plate 27 to the limit position, the right end surface of the discharging plate 27 abuts against the left end surface of the right detection plate 32, at this time, if the detection permeability of the detection material 33 in the detection plate 32 is good through the previous step, the electromagnet 28 is started, the magnet 36 is attracted through magnetism, then the discharge plate 27 moves leftwards to drive the detection plate 32 to move leftwards, the electromagnet 28 is stopped when the detection plate 32 moves leftwards to be right above the discharge channel 29, the magnetism disappears, the detection plate 32 falls into the qualified cavity 42 through the discharge channel 29, then the transmission dial 55 continues to rotate for a half circle, the above steps are repeated, further, if the detection permeability of the detection material 33 in the detection plate 32 right opposite to the discharge plate 27 is poor, the detection plate 32 moves to be right above the unqualified cavity 30, the detection plate 32 falls into the unqualified cavity 30 due to gravity, the permeability detection of the detection material 33 is completed once, and the above steps are repeated to complete the permeability detection of other.

The invention has the beneficial effects that: according to the invention, the closed spaces are formed on two sides of the detection material, the air is simultaneously pumped out from the closed spaces on the two sides of the detection material to reach a vacuum state, then quantitative air is introduced, and the quantity of gas passing through the detection material in unit time is detected by utilizing an ingenious structure.

In the above manner, a person skilled in the art can make various changes depending on the operation mode within the scope of the present invention.