CN115389128A - Food package bag air leakage detection device - Google Patents
Food package bag air leakage detection device Download PDFInfo
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- CN115389128A CN115389128A CN202211330509.3A CN202211330509A CN115389128A CN 115389128 A CN115389128 A CN 115389128A CN 202211330509 A CN202211330509 A CN 202211330509A CN 115389128 A CN115389128 A CN 115389128A
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- 235000013305 food Nutrition 0.000 title claims abstract description 40
- 238000001514 detection method Methods 0.000 title claims abstract description 32
- 238000004806 packaging method and process Methods 0.000 claims abstract description 94
- 238000007789 sealing Methods 0.000 claims abstract description 93
- 239000012528 membrane Substances 0.000 claims abstract description 10
- 238000003825 pressing Methods 0.000 claims description 21
- 239000011553 magnetic fluid Substances 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000005484 gravity Effects 0.000 abstract description 7
- 238000001125 extrusion Methods 0.000 abstract description 6
- 238000007689 inspection Methods 0.000 abstract description 2
- 238000012856 packing Methods 0.000 abstract description 2
- 238000009461 vacuum packaging Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 241000238557 Decapoda Species 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 235000015895 biscuits Nutrition 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006864 oxidative decomposition reaction Methods 0.000 description 1
- 235000021485 packed food Nutrition 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 235000013606 potato chips Nutrition 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
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Abstract
The invention discloses a food packaging bag air leakage detection device, which belongs to the field of packaging bag detection and comprises a support column, wherein the side surface of the support column is fixedly connected with a motor, an output shaft of the motor is fixedly connected with a support plate, and one side of the support plate is provided with a first conveyor belt; the utility model discloses a packing bag, including support column, electric telescopic handle, lower extreme fixedly connected with sealing boot of support frame, the inside of sealing boot is provided with the clamp plate, realizes the gravity extrusion inflation's of clamp plate wrapping bag, if the wrapping bag leaks gas and will cause the inside pressure increase of sealing boot, through atmospheric pressure extrusion toughness membrane, toughness membrane drives the first pressure sensor of hard block extrusion, and control module receives first pressure sensor's electrical property number, judges the wrapping bag of detection promptly unqualifiedly, has realized the gas leakage of automated inspection wrapping bag, has avoided manual operation's problem.
Description
Technical Field
The invention relates to the field of packaging bag detection, in particular to a food packaging bag air leakage detection device.
Background
The packaging bag is a bag for packaging various articles, so that goods are convenient to transport and easy to store in a production flow process, and the packaging bag is widely applied to daily life and industrial production.
Packaging bags are often used in the food industry for storage and transportation of food, when some puffed food is packaged, because the puffed food is crisp and is easy to crush by external pressure, such as potato chips and shrimp strips, the crushed product can seriously influence sale, so when the puffed food is packaged, a large amount of gas is generally introduced into the packaging bag to expand the packaging bag, and the slightly deformed hand bag of the packaging bag can not damage the internally puffed food in time; in packaging non-expanded food products, it is common to vacuum package the food products, such as compressed biscuits, meat, etc., in order to reduce the storage space of the food products.
If gas leakage appears in the food package bag, the air enters into the wrapping bag very easily, causes the food in the wrapping bag to appear oxidative decomposition and appears rotten problem at last, so food package bag's good or bad needs detect, has guaranteed the safe storage and the packing of food, and china now discloses a food package bag gas leakage detection device, and the patent number is: 202123290614.2, the detection in the publication is that the packaged food is put under a pressure plate, the packaging bag is pressed down by the self gravity of the pressure plate, if the pressure plate with air leakage moves down, the pointer is driven to change, thereby air leakage is judged to occur, if the pressure plate is stable and fixed, the pointer can not change, the packaging bag is intact, although the detection can also detect the integrity of the packaging bag, the detection effect is insensitive, if the air leakage of the packaging bag is small, the detection is not easy to occur, in addition, the publication only can detect the expanded packaging bag, the food bag packaged in vacuum can not be detected, and the use range of the device is limited.
Therefore, the food packaging bag air leakage detection device is provided.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a food packaging bag air leakage detection device which can be realized.
In order to solve the above problems, the present invention adopts the following technical solutions.
A gas leakage detection device for a food packaging bag comprises a support column, wherein a motor is fixedly connected to the side surface of the support column, an output shaft of the motor is fixedly connected with a support plate, and a first conveyor belt is arranged on one side of the support plate;
an electric telescopic rod is fixedly connected to one side of the upper end of the supporting column, a supporting frame is fixedly connected to the lower end of the electric telescopic rod, a sealing cover is fixedly connected to the lower end of the supporting frame, a pressing plate is arranged inside the sealing cover, uniformly distributed air exhaust holes are formed in the pressing plate in a penetrating mode, a sliding rod is fixedly connected to the upper surface of the pressing plate, the upper end of the sliding rod penetrates through the sealing cover in a sliding mode and extends to the outside, and a sliding cylinder is fixedly connected to the position, corresponding to the penetrating position of the sliding rod, of the upper surface of the sealing cover;
the upper end inner wall fixedly connected with toughness membrane of sealed cowling, the inside central point of toughness membrane puts fixedly connected with hard piece, the top of hard piece is provided with a pressure sensor, a pressure sensor and sealed cowling fixed connection.
Furthermore, an air outlet cylinder is arranged on the upper surface of the sealing cover close to the sliding cylinder, a fan is arranged inside the air outlet cylinder, and the upper end of the air outlet cylinder is fixedly connected with a sealing cover through threads;
a flat plate is arranged above the sliding rod, and a second pressure sensor is fixedly connected to the lower surface of the flat plate.
Furthermore, a sealing groove is formed in the position, close to the edge, of the upper surface of the supporting plate, a magnetic fluid is arranged in the sealing groove, and a permanent magnet is arranged at the inner bottom of the sealing groove.
Furthermore, the inner wall of the sealing cover is fixedly connected with a limiting plate at a position close to the lower end.
Furthermore, the inside sliding connection of limiting plate has flexible piece, the first spring of one end fixedly connected with of flexible piece, the one end and the sealed cowling fixed connection of first spring, the inside of first spring is provided with the haulage rope, the one end and the flexible piece fixed connection of haulage rope, the other end of haulage rope run through the lateral wall of sealed cowling and with clamp plate fixed connection.
Furthermore, the left end and the right end of the flat plate are fixedly connected with connecting rods, the lower ends of the connecting rods are fixedly connected with sliding rings, the sliding rings are sleeved on the outer circular surface of the sliding cylinder, bolts are arranged on the side surfaces of the sliding rings, and one ends of the bolts penetrate through the sliding rings and are tightly abutted to the outer circular surface of the sliding cylinder.
Furthermore, the upper end of backup pad is provided with the lifter plate, the upper surface central point of lifter plate puts and is the indent design.
Further, the lower fixed surface of lifter plate is close to marginal position fixedly connected with second spring, the lower extreme and the backup pad fixed connection of second spring, the lower surface central point of lifter plate puts fixedly connected with second conducting block, be provided with first conducting block under the second conducting block, first conducting block and backup pad fixed connection, first conducting block and second conducting block are used for triggering electric telescopic handle.
Furthermore, a sliding sealing ring is arranged on the outer circular surface of the sliding rod.
Furthermore, one end of the supporting plate is provided with a collecting cylinder, and the other end of the supporting plate is provided with a second conveying belt.
Compared with the prior art, the invention has the advantages that:
(1) This scheme passes through the expanded wrapping bag of gravity extrusion of clamp plate, if wrapping bag gas leakage will cause the inside pressure increase of sealed cowling, through atmospheric pressure extrusion toughness membrane, the toughness membrane drives the first pressure sensor of hard block extrusion, control module receives first pressure sensor's electrical property number, the wrapping bag that judges promptly to detect is unqualified, the gas leakage of automatic detection wrapping bag has been realized, manual operation's problem has been avoided, detect through electronic components moreover, the more sensitive of detection.
(2) When the vacuum packaging bag is detected, air is injected into the sealing cover through the fan, high air pressure is formed in the sealing cover, the air-leaked packaging bag can expand to drive the pressing plate to ascend, so that the sliding rod is driven to move upwards, the sliding rod can finally push the second pressure sensor, the control module receives an electric signal, the detected packaging bag is judged to be unqualified, the purpose that two different packaging bags can be detected through one device is achieved, and the application range of the vacuum packaging bag detecting device is widened.
(3) This scheme is when the sealed cowling downstream, and the clamp plate is taut haulage rope no longer, and the haulage rope just can not take-up flexible piece again this moment, and the first spring of compression can promote flexible piece and outwards remove, and the flexible piece that stretches out can promote the wrapping bag, puts the central point that the wrapping bag pushed the backup pad as far as for under the clamp plate was arranged in to the wrapping bag, the wrapping bag of being convenient for evenly receives the pressure of clamp plate.
(4) According to the scheme, when the sealing cover moves downwards, the lower end of the sealing cover can enter the sealing groove, meanwhile, the magnetic fluid can overflow the lower end of the sealing cover, the lower end of the sealing cover is sealed, gas can be well prevented from flowing from a gap between the supporting plate and the sealing cover when the packaging bag is detected, and compared with the traditional method of sealing through installing the sealing gasket, the sealing effect is better.
Drawings
FIG. 1 is a perspective view of the overall structure of the present invention;
FIG. 2 is an enlarged view of point A of FIG. 1 in accordance with the present invention;
FIG. 3 is an enlarged view of point B of FIG. 1 in accordance with the present invention;
FIG. 4 is a cross-sectional view of the seal housing and support plate of the present invention;
FIG. 5 is an enlarged view of point C of FIG. 4 in accordance with the present invention;
FIG. 6 is a perspective view of the seal cap and the connecting member of the present invention;
FIG. 7 is an enlarged view taken at point D of FIG. 4 in accordance with the present invention;
FIG. 8 is an internal view of the sealing cap of the present invention.
The reference numbers in the figures illustrate:
1. a support column; 2. a motor; 3. an electric telescopic rod; 4. a support frame; 5. a sealing cover; 6. a first conveyor belt; 7. a slide cylinder; 8. a slide bar; 9. pressing a plate; 10. an air exhaust hole; 11. a support plate; 12. a first pressure sensor; 13. hardening the block; 14. a tough film; 15. an air outlet cylinder; 16. a fan; 17. a sealing cover; 18. a flat plate; 19. a second pressure sensor; 20. a sealing groove; 21. a magnetic fluid; 22. a limiting plate; 23. a telescopic block; 24. a first spring; 25. a hauling rope; 26. sliding the seal ring; 27. a slip ring; 28. a connecting rod; 29. a bolt; 30. a lifting plate; 31. a second spring; 32. a first conductive block; 33. a second conductive block; 34. a second conveyor belt; 35. a collection canister; 36. and a permanent magnet.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
Example 1:
referring to fig. 1 to 5, a gas leakage detecting device for a food packaging bag includes a support pillar 1, a motor 2 fixedly connected to a side surface of the support pillar 1, a support plate 11 fixedly connected to an output shaft of the motor 2, and a first conveyor belt 6 disposed on one side of the support plate 11;
an electric telescopic rod 3 is fixedly connected to one side of the upper end of a supporting column 1, a supporting frame 4 is fixedly connected to the lower end of the electric telescopic rod 3, a sealing cover 5 is fixedly connected to the lower end of the supporting frame 4, a pressing plate 9 is arranged inside the sealing cover 5, air exhaust holes 10 which are uniformly distributed penetrate through the inside of the pressing plate 9, a sliding rod 8 is fixedly connected to the upper surface of the pressing plate 9, the upper end of the sliding rod 8 penetrates through the sealing cover 5 in a sliding mode and extends to the outside, and a sliding cylinder 7 is fixedly connected to the position, corresponding to the penetrating position of the sliding rod 8, of the upper surface of the sealing cover 5;
the upper end inner wall fixed connection of sealed cowling 5 has toughness membrane 14, and the central point of toughness membrane 14 inside puts fixedly connected with hard piece 13, and the top of hard piece 13 is provided with first pressure sensor 12, first pressure sensor 12 and sealed cowling 5 fixed connection.
By adopting the above technical scheme, a packaging bag containing puffed food is placed on the first conveyor belt 6, the food falls on the support plate 11 after being conveyed, then the electric telescopic rod 3 controls the support frame 4 to move downwards, meanwhile, the sealing cover 5 also moves downwards, the packaging bag is covered in the sealing cover 5, the pressure plate 9 is pressed on the packaging bag, the sealing cover 5 continues to move downwards, the pressure plate 9 is blocked by the packaging bag, the pressure plate 9 cannot move downwards synchronously with the sealing cover 5, so that the upper end of the sliding rod 8 gradually extends outwards from the sealing cover 5, finally, the lower end of the sealing cover 5 is attached to the upper surface of the support plate 11, the packaging bag is completely covered in the sealing cover 5, the packaging bag is bulged, a large amount of gas exists inside, if the packaging bag leaks, the self gravity of the pressure plate 9 presses down the packaging bag, the gas inside the packaging bag reduces the gas to flow into the sealing cover 5, meanwhile, the pressure plate 9 moves downwards and drives the sliding rod 8 to move together, the sliding rod 8 moves towards the sealing cover 5, the inside of the sealing cover 5, the packaging bag is supplemented, the reduced volume is not changed, but the volume inside of the packaging bag 5 does not change, but the gas flows into the sealing cover 5, the pressure sensor 14, the pressure of the packaging bag can not rise, the pressure sensor 12, the pressure sensor can not drive the first pressure sensor 12, the pressure sensor can not move upwards, the pressure sensor 12, the pressure sensor, the first pressure sensor 12, the pressure sensor can not move, the pressure sensor 12, the pressure sensor can not move upwards, the first pressure sensor 12, the pressure sensor can not move, after 3 seconds in the sealed cowling 5 in the wrapping bag is covered completely, control module still does not receive first pressure sensor 12's signal, judges the wrapping bag in the sealed cowling 5 promptly and is qualified wrapping bag, has realized the gas leakage of automated inspection wrapping bag, has avoided manual operation's problem, detects through electronic components moreover, and the detection is more sensitive.
As shown in fig. 3 to 6, an air outlet cylinder 15 is mounted on the upper surface of the sealing cover 5 near the sliding cylinder 7, a fan 16 is mounted inside the air outlet cylinder 15, and a sealing cover 17 is fixedly connected to the upper end of the air outlet cylinder 15 through threads;
a flat plate 18 is arranged above the sliding rod 8, and a second pressure sensor 19 is fixedly connected to the lower surface of the flat plate 18.
By adopting the technical scheme, when detecting the packaging bag of the vacuum package, the sealing cover 17 is firstly screwed off, the mode of the control module is changed down, the mode is the mode of detecting the vacuum packaging bag, (the control module has two modes, one mode is used for detecting the expanded packaging bag and corresponds to the first pressure sensor 12, the other mode is used for detecting the vacuum packaging bag and corresponds to the second pressure sensor 19), then the packaging bag after packaging the food is put on the first conveying belt 6, the packaging bag falls on the supporting plate 11 after being conveyed, then the electric telescopic rod 3 controls the supporting frame 4 to move downwards, the sealing cover 5 also moves downwards, the packaging bag is covered in the sealing cover 5, the pressing plate 9 is pressed on the packaging bag, finally, the lower end of the sealing cover 5 is attached to the supporting plate 11, and at the moment, the fan 16 rotates to inject gas into the sealing cover 5, a high-pressure state is formed inside the sealing cover 5 (it should be noted here that, an air pump may also be used to replace the fan 16, and the air pump is connected to the air inlet tube 15 to realize the state of forming high pressure inside the sealing cover 5), if the packaging bag leaks air, the air will enter into the packaging bag, the packaging bag will expand to push the pressing plate 9 upwards, the pressing plate 9 will drive the sliding rod 8 to move upwards, the sliding rod 8 will finally push against the second pressure sensor 19, when the control module receives the electrical signal from the second pressure sensor 19, it is determined that the packaging bag is unqualified to be detected, if the packaging bag is airtight, when high pressure is formed inside the sealing cover 5, the packaging bag will not expand, the pressing plate 9 will not be pushed up, the second pressure sensor 19 will not be squeezed, and the control module does not receive the electrical signal from the second pressure sensor 19 after 3 seconds, it is determined that the packaging bag is qualified, the device can detect two different packaging bags, and the application range of the invention is widened.
As shown in fig. 4, a sealing groove 20 is formed on the upper surface of the support plate 11 near the edge, a magnetic fluid 21 is filled in the sealing groove 20, and a permanent magnet 36 is installed at the inner bottom of the sealing groove 20.
When detecting whether the package bag leaks, in order to improve the sealing performance between the support plate 11 and the seal cover 5, when the seal cover 5 moves downwards, the lower end of the seal cover 5 can enter the seal groove 20, and meanwhile, the magnetic fluid 21 can permeate the lower end of the seal cover 5, so that the lower end of the seal cover 5 is sealed, gas can be well prevented from flowing from a gap between the support plate 11 and the seal cover 5 when the package bag is detected, compared with the traditional method of sealing by installing a seal gasket, the sealing effect of the invention is better, the seal cover 5 is made of a non-magnetic conductive material, the seal cover 5 can be prevented from being stained with the magnetic fluid 21 when the seal cover 5 is separated from the magnetic fluid 21, the permanent magnet 36 is installed inside the seal groove 20, the magnetic fluid 21 above the permanent magnet 36 is magnetically attracted, the magnetic fluid 21 can be prevented from flowing out from the seal groove 20 when the support plate 11 is inclined, in addition, the lower end of the seal cover 5 does not abut against the support plate 11 after entering the seal groove 20, and thus, the stress of an output shaft of the motor 2 can be reduced.
As shown in fig. 7 and 8, a position limiting plate 22 is fixedly connected to the inner wall of the sealing cover 5 near the lower end.
When electric telescopic handle 3 contracts, sealed cowling 5 moves up, and clamp plate 9 is very easy because the gravity roll-off of self, and sealed cowling 5 can spacing clamp plate 9's effect through installation limiting plate 22, avoids clamp plate 9 roll-off sealed cowling 5.
As shown in fig. 4, 7 and 8, the limiting plate 22 is slidably connected with a telescopic block 23, one end of the telescopic block 23 is fixedly connected with a first spring 24, one end of the first spring 24 is fixedly connected with the sealing cover 5, a pulling rope 25 is arranged inside the first spring 24, one end of the pulling rope 25 is fixedly connected with the telescopic block 23, and the other end of the pulling rope 25 penetrates through the side wall of the sealing cover 5 and is fixedly connected with the pressing plate 9.
Through adopting above-mentioned technical scheme, when 5 downstream of sealed cowling, clamp plate 9 receives the separation of wrapping bag, clamp plate 9 can not with 5 synchronous downstream of sealed cowling, simultaneously haulage rope 25 just can not pull up flexible piece 23 again, the first spring 24 of compression can promote flexible piece 23 outside removal (need to explain here this moment), clamp plate 9's self gravity pulling haulage rope 25 during initial condition, haulage rope 25 can stimulate flexible piece 23, flexible piece 23 can extrude first spring 24), the flexible piece 23 that stretches out can promote the wrapping bag, the central point that pushes away the wrapping bag backup pad 11 puts as far as, make the wrapping bag arrange clamp plate 9 in under, be convenient for the wrapping bag evenly receives the pressure of clamp plate 9.
As shown in fig. 6, a connecting rod 28 is fixedly connected to both left and right ends of the flat plate 18, a sliding ring 27 is fixedly connected to a lower end of the connecting rod 28, the sliding ring 27 is sleeved on the outer circumferential surface of the sliding cylinder 7, a bolt 29 is disposed on a side surface of the sliding ring 27, and one end of the bolt 29 penetrates through the sliding ring 27 and abuts against the outer circumferential surface of the sliding cylinder 7.
When the sealed bag of the vacuum package is detected, sometimes because the thickness of the sealed bag is too thick, the sealed cover 5 moves downwards, the pressure plate 9 is pushed to move upwards by the packaged bag, and finally the lower end of the sealed cover 5 does not enter the sealing groove 20, so that the sliding rod 8 pushes the second pressure sensor 19, and normal detection cannot be performed.
As shown in fig. 2, a lifting plate 30 is disposed at the upper end of the supporting plate 11, and the central position of the upper surface of the lifting plate 30 is designed to be concave.
Through adopting above-mentioned technical scheme, when the wrapping bag drops from first conveyer belt 6, the wrapping bag can drop earlier on lifter plate 30, the upper surface central point of lifter plate 30 puts and is the indent design, even the wrapping bag also can slide the central point of lifter plate 30 to the border position that the lifter plate 30 dropped like this, even the wrapping bag does not slide the position of lifter plate 30, follow-up also make the wrapping bag move the central point of lifter plate 30 under the promotion of flexible piece 23 easily, appear revealing when the wrapping bag detects in addition, the liquid of revealing also can flow in the pit of lifter plate 30, the liquid that can avoid revealing appears the problem of overflow.
As shown in fig. 4, a second spring 31 is fixedly connected to a position of the lower surface of the lifting plate 30 close to the edge, a lower end of the second spring 31 is fixedly connected to the supporting plate 11, a second conductive block 33 is fixedly connected to a central position of the lower surface of the lifting plate 30, a first conductive block 32 is arranged right below the second conductive block 33, the first conductive block 32 is fixedly connected to the supporting plate 11, and the first conductive block 32 and the second conductive block 33 are used for activating the electric telescopic rod 3.
Through adopting above-mentioned technical scheme, when the wrapping bag drops from first conveyer belt 6, the wrapping bag can drop earlier on lifter plate 30, the wrapping bag can push down lifter plate 30 with the self weight of inside food, lifter plate 30 moves down and compresses second spring 31, last first conducting block 32 and second conducting block 33 contact each other, first conducting block 32, two and the control module electric connection of second conducting block 33, control module receives the signal of telecommunication, control electric telescopic handle 3 moves down.
As shown in fig. 4, a sliding seal ring 26 is mounted on the outer circumferential surface of the sliding rod 8.
Through adopting above-mentioned technical scheme, can increase the leakproofness between slide bar 8 and the sealed cowling 5, avoid the problem that the gas leakage appears when detecting, guarantee that the detection of wrapping bag can normally go on.
As shown in fig. 1, one end of the supporting plate 11 is provided with a collecting cylinder 35, and the other end of the supporting plate 11 is provided with a second conveyor belt 34.
Through adopting above-mentioned technical scheme, after the wrapping bag detects the completion, control module can control motor 2 and rotate, and motor 2 drive backup pad 11 rotates, detects qualified wrapping bag motor 2 drive backup pad 11 and rotates to 34 departments of second conveyer belt, detects unqualified wrapping bag motor 2 drive backup pad 11 and rotates to 35 departments of collection bucket, has realized the product after the autosegregation detects, has avoided manual operation, has liberated the manpower.
The using method comprises the following steps: the packaging bag filled with puffed food is placed on a first conveyor belt 6, the food falls on a support plate 11 after being conveyed, then an electric telescopic rod 3 controls a support frame 4 to move downwards, a sealing cover 5 also moves downwards, the packaging bag is covered in the sealing cover 5, a pressure plate 9 is pressed on the packaging bag and moves downwards along with the sealing cover 5, the pressure plate 9 is separated by the packaging bag, the pressure plate 9 cannot move downwards synchronously with the sealing cover 5, so that the upper end of a sliding rod 8 extends outwards gradually from the sealing cover 5, finally, the lower end of the sealing cover 5 is attached to the upper surface of the support plate 11, the packaging bag is completely covered in the sealing cover 5, the packaging bag is clapped and contains a lot of gas, if the packaging bag leaks, the self gravity of the pressure plate 9 can press the packaging bag, the gas in the packaging bag is reduced to flow into the sealing cover 5, meanwhile, the pressure plate 9 moves downwards and drives the sliding rod 8 to move together, the sliding rod 8 moves into the sealing cover 5 to supplement the reduced volume of the packaging bag, the volume in the sealing cover 5 is not changed, but the air in the packaging bag flows into the sealing cover 5 to cause the internal air pressure in the packaging bag to rise, at the moment, the tough film 14 is concave and drives the hard block 13 to approach the first pressure sensor 12, the hard block 13 finally extrudes the first pressure sensor 12, after the first pressure sensor 12 is extruded, the control module in the support column 1 detects the air leakage of the packaging bag, if the packaging bag does not leak air, the expansion force of the packaging bag can jack up the pressing plate 9, the pressing plate 9 cannot move downwards, the air in the packaging bag cannot flow into the sealing cover 5, the air pressure in the sealing cover 5 cannot change, so that the tough film 14 cannot fluctuate, the hard block 13 cannot extrude the first pressure sensor 12, and after the packaging bag is completely covered in the sealing cover 5 for 3 seconds, the control module does not receive the signal of the first pressure sensor 12, namely, the packaging bag in the sealing cover 5 is judged to be a qualified packaging bag, so that the air leakage of the packaging bag is automatically detected, the problem of manual operation is avoided, and the detection is more sensitive through the detection of electronic components;
when a packaging bag of a vacuum package is detected, the sealing cover 17 is firstly screwed off, the mode of the control module is adjusted, the mode is the mode for detecting the vacuum packaging bag, then the packaging bag after packaging food is placed on the first conveyor belt 6, the packaging bag falls on the supporting plate 11 after being conveyed, then the electric telescopic rod 3 controls the supporting frame 4 to move downwards, the sealing cover 5 also moves downwards, the packaging bag is covered in the sealing cover 5, the pressing plate 9 presses on the packaging bag, finally, the lower end of the sealing cover 5 is attached to the supporting plate 11, at the moment, the fan 16 rotates to inject gas into the sealing cover 5, the inside of the sealing cover 5 is in a high-pressure state, if the packaging bag leaks, the packaging bag expands to push the pressing plate 9 to move upwards, the pressing plate 9 drives the sliding rod 8 to move upwards, the sliding rod 8 finally pushes against the second pressure sensor 19, when the control module receives an electric signal of the second pressure sensor 19, the packaging bag is judged to be unqualified, when the high-pressure sensor is formed in the packaging bag 5, the packaging bag is not expanded, and the packaging bag is judged to be qualified after the second pressure sensor is extruded, and the packaging bag is not used in the invention.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (10)
1. The utility model provides a food package bag air leakage detection device, includes support column (1), its characterized in that: a motor (2) is fixedly connected to the side surface of the supporting column (1), an output shaft of the motor (2) is fixedly connected with a supporting plate (11), and a first conveying belt (6) is arranged on one side of the supporting plate (11);
an electric telescopic rod (3) is fixedly connected to one side of the upper end of the supporting column (1), a supporting frame (4) is fixedly connected to the lower end of the electric telescopic rod (3), a sealing cover (5) is fixedly connected to the lower end of the supporting frame (4), a pressing plate (9) is arranged inside the sealing cover (5), uniformly distributed exhaust holes (10) are formed in the pressing plate (9) in a penetrating mode, a sliding rod (8) is fixedly connected to the upper surface of the pressing plate (9), the upper end of the sliding rod (8) penetrates through the sealing cover (5) in a sliding mode and extends to the outside, and a sliding cylinder (7) is fixedly connected to the position, corresponding to the penetrating position of the sliding rod (8), of the upper surface of the sealing cover (5);
the upper end inner wall fixedly connected with toughness membrane (14) of sealed cowling (5), the inside central point of toughness membrane (14) puts fixedly connected with hard piece (13), the top of hard piece (13) is provided with first pressure sensor (12), first pressure sensor (12) and sealed cowling (5) fixed connection.
2. The food packaging bag air leakage detection device according to claim 1, characterized in that: an air outlet cylinder (15) is arranged on the upper surface of the sealing cover (5) close to the sliding cylinder (7), a fan (16) is arranged inside the air outlet cylinder (15), and the upper end of the air outlet cylinder (15) is fixedly connected with a sealing cover (17) through threads;
a flat plate (18) is arranged above the sliding rod (8), and a second pressure sensor (19) is fixedly connected to the lower surface of the flat plate (18).
3. The food packaging bag air leakage detection device according to claim 1, characterized in that: the upper surface of backup pad (11) is close to the edge position and has seted up seal groove (20), magnetic fluid (21) are equipped with in seal groove (20), permanent magnet (36) are installed to the interior bottom of seal groove (20).
4. The food packaging bag air leakage detection device according to claim 1, characterized in that: and a limiting plate (22) is fixedly connected to the position, close to the lower end, of the inner wall of the sealing cover (5).
5. The food packaging bag air leakage detection device according to claim 4, characterized in that: the inside sliding connection of limiting plate (22) has flexible piece (23), the first spring (24) of one end fixedly connected with of flexible piece (23), the one end and the sealed cowling (5) fixed connection of first spring (24), the inside of first spring (24) is provided with haulage rope (25), the one end and the flexible piece (23) fixed connection of haulage rope (25), the other end of haulage rope (25) run through the lateral wall of sealed cowling (5) and with clamp plate (9) fixed connection.
6. The food packaging bag air leakage detection device according to claim 2, characterized in that: the left end and the right end of the flat plate (18) are fixedly connected with connecting rods (28), the lower ends of the connecting rods (28) are fixedly connected with sliding rings (27), the sliding rings (27) are sleeved on the outer circular surface of the sliding cylinder (7), bolts (29) are arranged on the side surfaces of the sliding rings (27), and one ends of the bolts (29) penetrate through the sliding rings (27) and are abutted to the outer circular surface of the sliding cylinder (7).
7. The food packaging bag air leakage detection device according to claim 1, characterized in that: the upper end of the supporting plate (11) is provided with a lifting plate (30), and the central position of the upper surface of the lifting plate (30) is designed to be concave.
8. The food packaging bag air leakage detection device according to claim 7, characterized in that: the lower fixed surface of lifter plate (30) is close to marginal position fixedly connected with second spring (31), the lower extreme and backup pad (11) fixed connection of second spring (31), the lower surface central point of lifter plate (30) puts fixedly connected with second conducting block (33), be provided with first conducting block (32) under second conducting block (33), first conducting block (32) and backup pad (11) fixed connection, first conducting block (32) and second conducting block (33) are used for triggering electric telescopic handle (3).
9. The food packaging bag air leakage detection device according to claim 1, characterized in that: and a sliding sealing ring (26) is arranged on the outer circular surface of the sliding rod (8).
10. The food packaging bag air leakage detection device according to claim 1, characterized in that: one end of the supporting plate (11) is provided with a collecting cylinder (35), and the other end of the supporting plate (11) is provided with a second conveying belt (34).
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| CN202211330509.3A CN115389128A (en) | 2022-10-28 | 2022-10-28 | Food package bag air leakage detection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211330509.3A CN115389128A (en) | 2022-10-28 | 2022-10-28 | Food package bag air leakage detection device |
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Application publication date: 20221125 |