CN115752967A

CN115752967A - Detection apparatus for sealing performance after encapsulation of nuts in bags

Info

Publication number: CN115752967A
Application number: CN202211361212.3A
Authority: CN
Inventors: 梅方祥; 梅妍; 任其兵
Original assignee: Anhui Cailinjian Food Technology Co ltd
Current assignee: Anhui Cailinjian Food Technology Co ltd
Priority date: 2022-11-02
Filing date: 2022-11-02
Publication date: 2023-03-07

Abstract

The invention relates to the technical field of packaging detection, and particularly discloses a device for detecting sealing performance of packaged nuts, which comprises a fixed plate, wherein supporting plates are arranged at the bottoms of two sides of the fixed plate along the length direction, a hydraulic supporting rod is connected between the two ends of the top of each supporting plate and the bottom end of the fixed plate, a first connecting plate is arranged at the middle section of the fixed plate in a wrapping mode along the length direction, a first sliding groove is formed in the first connecting plate, a plurality of first electric sliding blocks are slidably arranged in the first sliding groove, and one side, far away from the first sliding groove, of each first electric sliding block is connected with a clamping mechanism. According to the invention, the nut packaging bag to be detected is fixed through the clamping plate by the arrangement of the first electric sliding block, the clamping plate and the first roller, then the first electric sliding block drives the clamping plate to convey the packaging bag to the first roller, for the airtight packaging bag, the first electric sliding block can drive the first sliding block to slide and extrude the second spring, and when the shifting block touches the contact switch, the first electric sliding block can drive the first sliding block to slide and extrude the second spring.

Description

Detection apparatus for sealing performance after encapsulation of nuts in bags

Technical Field

The invention relates to the technical field of packaging detection, in particular to a device for detecting the sealing performance of packaged nuts.

Background

Nuts, a classification of closed fruit, have a hard pericarp and contain 1 or more seeds. Such as chestnut, almond, etc. The nuts are the essential parts of plants, are generally rich in nutrition, contain high protein, grease, mineral substances and vitamins, and have excellent effects on growth and development of human bodies, physique enhancement and disease prevention.

The nut is after production, adopts and adopts the wrapping bag to pack more, encapsulates the wrapping bag afterwards, sends to the point of sale after the end and sells, if the leakproofness of wrapping bag is unqualified, then the shelf life of nut then is difficult to reach anticipated effect, not only can cause the damage of nut, still loses the brand image of producer.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a device for detecting the sealing performance of packaged nuts.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a detection apparatus for sealing performance after nut encapsulation in bags, which comprises a fixing plate and i, the backup pad has all been placed along length direction in the both sides bottom of fixed plate, be connected with the hydraulic support pole between the top both ends of backup pad and the bottom of fixed plate, first connecting plate is installed along the length direction cladding in the middle section of fixed plate, first spout has been seted up on the first connecting plate, the inside slidable mounting of first spout has a plurality of first electronic sliders, one side that first spout was kept away from to first electronic slider is connected with fixture, the connecting block has been placed in the top activity of backup pad, one side that two connecting blocks are close to each other all is equipped with blocking mechanism, the backup pad is equipped with distinguishing mechanism in blocking mechanism's below.

Preferably, the clamping mechanism comprises a first positioning block, a second connecting plate and a clamping plate, a first positioning block is placed on one side, away from the first sliding groove, of the first electric sliding block, a second sliding groove is horizontally formed in one side, close to the first electric sliding block, of the first positioning block along the length direction, a contact switch is installed on the inner wall of one end, in the advancing direction of the first electric sliding block, of the second sliding groove, a first sliding block is installed inside the second sliding groove in a sliding mode, the first sliding block is located at one end, away from the contact switch, one side, close to the first electric sliding block, of the first sliding block is connected with the first electric sliding block, a second spring is connected between the first sliding block and the inner wall of one end, close to the contact switch, of the first sliding block, and a shifting block is installed on one side, close to the contact switch, of the first sliding block;

one side of the first locating block far away from the first electric sliding block is connected with a second connecting plate, one side of the second connecting plate far away from the first locating block is horizontally provided with a third sliding groove along the length direction, the inside sliding device of the third sliding groove is provided with a second electric sliding block, and one end of the second electric sliding block far away from the third sliding groove is movably connected with a clamping plate.

Preferably, stop mechanism includes second electric telescopic handle, grip block, movable rod and first running roller, and second electric telescopic handle is all installed perpendicularly to one side that two connecting blocks are close to each other, and the connecting block is kept away from to second electric telescopic handle's flexible end, and second electric telescopic handle's flexible end swing joint has the grip block, and the top and the bottom of grip block all swing joint have the movable rod, rotate between two movable rods on a grip block and install first running roller.

Preferably, distinguish the mechanism and include conveyer belt and triangle sloping block, install the conveyer belt in the below of grip block between two backup pads, install the triangle sloping block at the other end of conveyer belt between two backup pads, the conveyer belt is kept away from to the inclined plane of triangle sloping block.

Preferably, the grip block is close to one side embedding of second electric telescopic handle and installs first rotating electrical machines, and the output of first rotating electrical machines is connected with second electric telescopic handle's flexible end, and the top that two grip blocks are close to each other all has seted up the second fluting along the end wall direction level of fixed plate with the bottom, and the mobile grafting of movable rod is installed in the inside of second fluting, and the movable rod is kept away from and is connected with first spring between the one end of first running roller and the grooved inner wall bottom of second.

Preferably, a first groove is vertically formed in the top of the supporting plate, a first electric telescopic rod is installed in the first groove in a vertical embedded mode, the telescopic end of the first electric telescopic rod faces towards the fixing plate, and the telescopic end of the first electric telescopic rod is connected with the bottom end of the connecting block.

Preferably, one the fly leaf has all been placed to one side that two splint on the second connecting plate are close to each other, the trompil has been seted up in four corners running through on the splint lateral wall, the inside movable plug-in mounting of trompil has the stabilizer bar, the stabilizer bar is close to the one end of fly leaf and is connected with the fly leaf, be connected with the third spring between splint and its corresponding fly leaf, splint are close to the one end embedding of second connecting plate and install the second rotating electrical machines, the output and the electronic slider of second rotating electrical machines are connected, one side of keeping away from the fly leaf on the splint is equipped with the rubber pad, a plurality of gas pockets have evenly been seted up in the outside of first running roller.

Preferably, a third open groove is formed in the inclined surface of the triangular inclined block, and a plurality of second rollers are rotatably mounted in the third open groove.

Compared with the prior art, the invention has the beneficial effects that:

according to the nut packaging bag detection device, the first electric slider, the clamping plate and the first roller wheel are arranged, the nut packaging bag to be detected is fixed through the clamping plate, then the first electric slider drives the clamping plate, the packaging bag is conveyed to the first roller wheel, for the airtight packaging bag, the first electric slider can drive the first slider to slide and extrude the second spring, when the shifting block touches the contact switch, the second electric slider does mutual-distant movement, the clamping plate stops clamping the nut packaging bag, the packaging bag falls to the surface of the conveying belt, when the nut packaging bag with the air leakage condition moves to the first roller wheel, the nut packaging bag has air leakage, so that when the first roller wheel is extruded, the first slider is not enough to displace due to self pressure, the nut packaging bag can penetrate through a gap between the two first roller wheels, then when the nut packaging bag moves to the position above the triangular oblique block, the clamping plate can be loosened, the packaging bag falls onto the triangular oblique block, the sealing detection of the nut packaging bag is completed, and the classification of the detected products is completed at the same time.

According to the nut packaging bag detection device, the first electric telescopic rod and the first rotating motor are arranged, the first rotating motor rotates, the first roller wheel rotates to be horizontal to the top end of the supporting plate, the first electric telescopic rod drives the connecting block to move up and down, the two first roller wheels roll and clamp the nut packaging bag once from top to bottom, the device can detect the vacuum packaging bag, and the detection range of the device is enlarged.

According to the invention, the air holes are arranged, so that air can be blown outwards through the air holes, when the first roller rolls on the outer side of the vacuum packaging bag, the vacuum packaging bag can be directly blown, if the air leakage holes exist in the vacuum packaging bag, the air can be directly blown into the packaging bag through the holes, so that the detection process is smoother, when the inflatable packaging bag is detected, the air holes are used for blowing outwards, so that dust on the outer side of the packaging bag can be blown down, and the cleaning effect on the packaging bag is achieved.

According to the invention, by arranging the movable plate, the third spring and the second rotating motor, when the inflatable package is detected, the nut packaging bags are clamped by the clamping plate, the nut packaging bags are squeezed by the movable plate, the elastic force of the third spring is utilized, the movable plate is used for clamping the nut packaging bags, the movable plate has a continuous extrusion force on the nut packaging bags, when the nut packaging bags are squeezed by the movable plate, the clamping of the device on the nut packaging bags is more stable, the gas inside the nut packaging bags with air leakage can be squeezed out, when the vacuum package is detected, the second rotating motor rotates, the clamping plate is driven to rotate, the two movable plates on the second connecting plate rotate to opposite directions, and the rubber pads on the clamping plate can enable the clamping plate to clamp the packaging bags more tightly.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1 according to the present invention;

FIG. 3 is a schematic cross-sectional view of the clamping block of the present invention;

FIG. 4 is a schematic view of the splint structure of the present invention;

FIG. 5 is a schematic view of a third chute structure of the present invention;

FIG. 6 is a schematic view of a third spring structure according to the present invention;

fig. 7 is a schematic structural view of a second rotating electric machine according to the present invention;

FIG. 8 is a side view of the present invention.

In the figure: 1. a fixing plate; 2. a first connecting plate; 3. a first chute; 4. a hydraulic support rod; 5. a support plate; 6. connecting blocks; 7. a first slot; 8. a first electric telescopic rod; 9. a second electric telescopic rod; 10. a clamping block; 11. a second slot; 12. a first spring; 13. a movable rod; 14. a first roller; 15. a first rotating electrical machine; 16. air holes; 17. a first electric slider; 18. a first positioning block; 19. a second chute; 20. a first slider; 21. a second spring; 22. shifting blocks; 23. a contact switch; 24. a second connecting plate; 25. a third chute; 26. a second electric slider; 27. a splint; 28. a movable plate; 29. a third spring; 30. a stabilizer bar; 31. a conveyor belt; 32. a triangular oblique block; 33. a third slot is formed; 34. a second roller; 35. a second rotating electrical machine; 36. and (6) opening holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-8, a detection apparatus for sealing performance after encapsulation of bagged nuts, including fixed plate 1, backup pad 5 has all been placed along length direction in the both sides bottom of fixed plate 1, be connected with hydraulic support rod 4 between the top both ends of backup pad 5 and the bottom of fixed plate 1, first connecting plate 2 is installed along the length direction cladding in the middle section of fixed plate 1, first spout 3 has been seted up on first connecting plate 2, the inside slidable mounting of first spout 3 has a plurality of first electronic sliders 17, one side that first spout 3 was kept away from to first electronic slider 17 is connected with fixture, connecting block 6 has been placed in the top activity of backup pad 5, one side that two connecting blocks 6 are close to each other all is equipped with blocking mechanism, backup pad 5 is equipped with distinguishing mechanism in blocking mechanism's below. Fix the nut wrapping bag that will treat through fixture, first electronic slider 17 drives fixture afterwards, transports the wrapping bag to stop gear department, and through stop gear's screening, gas leakage and airtight wrapping bag accomplish through distinguishing the mechanism and distinguish the delivery, and the staff carries out the reprocessing packing with unqualified nut wrapping bag afterwards can.

As a technical optimization scheme of the invention, the clamping mechanism comprises a first positioning block 18, a second connecting plate 24 and a clamping plate 27, the first positioning block 18 is placed on one side of the first electric sliding block 17 far away from the first sliding chute 3, a second sliding chute 19 is horizontally arranged on one side of the first positioning block 18 close to the first electric sliding block 17 along the length direction, a contact switch 23 is installed on the inner wall of one end of the second sliding chute 19 in the advancing direction of the first electric sliding block 17, a first sliding block 20 is installed in the second sliding chute 19 in a sliding manner, the first sliding block 20 is located at one end far away from the contact switch 23, one side of the first sliding block 20 close to the first electric sliding block 17 is connected with the first electric sliding block 17, a second spring 21 is connected between the first sliding block 20 and the inner wall of one end of the second sliding chute 19 where the contact switch 23 is installed, and a shifting block 22 is installed on one side of the first sliding block 20 close to the contact switch 23;

one side that first locating block 18 kept away from first electronic slider 17 is connected with second connecting plate 24, and third spout 25 has been seted up along length direction level to one side that first locating block 18 was kept away from to second connecting plate 24, and the inside slidable mounting of third spout 25 has second electronic slider 26, and the one end swing joint that third spout 25 was kept away from to second electronic slider 26 has a splint 27. The second electric slider 26 slides inside the third chute 25, so that the clamp plate 27 moves close to each other to clamp and fix the nut packaging bag, the first electric slider 17 continues to slide inside the first chute 3, at this time, the nut packaging bag is blocked by the first roller 14, so the first electric slider 17 can drive the first slider 20 to slide inside the second chute 19 and extrude the second spring 21, when the toggle block 22 touches the contact switch 23, the second electric slider 26 moves away from each other, the clamp plate 27 stops clamping the nut packaging bag, when the nut packaging bag with air leakage moves to the first roller 14, because the nut packaging bag has air leakage, when the first roller 14 is extruded, the pressure of the second electric slider is insufficient to enable the first slider 20 to displace, and the two sides of the nut packaging bag can pass through the gap between the two first rollers 14 when the first roller 14 is extruded, and then when the nut packaging bag moves to the upper side of the triangular oblique block 32, the clamp plate 27 can be loosened, the clamping of the nut packaging bag is completed, and the differential release is performed.

As a technical optimization scheme of the invention, the blocking mechanism comprises a second electric telescopic rod 9, a clamping block 10, movable rods 13 and a first roller 14, the second electric telescopic rod 9 is vertically installed on one side, close to each other, of each of the two connecting blocks 6, the telescopic end of the second electric telescopic rod 9 is far away from the connecting blocks 6, the clamping block 10 is movably connected to the telescopic end of the second electric telescopic rod 9, the movable rods 13 are movably installed on the top and the bottom of the clamping block 10, and the first roller 14 is rotatably installed between the two movable rods 13 on one clamping block 10. The first roller 14 is engaged with the nip plate 27 to detect the packing bag.

As a technical optimization scheme of the invention, the distinguishing mechanism comprises a conveyor belt 31 and a triangular inclined block 32, the conveyor belt 31 is arranged between the two supporting plates 5 below the clamping block 10, the triangular inclined block 32 is arranged between the two supporting plates 5 at the other end of the conveyor belt 31, and the inclined surface of the triangular inclined block 32 is far away from the conveyor belt 31. The conveyer belt 31 shifts the well sealed wrapping bag, and the unqualified triangle sloping block 32 that passes through of packing shifts, has greatly improved the use convenience of device.

As a technical optimization scheme of the invention, a first rotating motor 15 is embedded and installed at one side of each clamping block 10 close to the second electric telescopic rod 9, the output end of the first rotating motor 15 is connected with the telescopic end of the second electric telescopic rod 9, a second open slot 11 is horizontally formed in the top end and the bottom end of each clamping block 10 close to each other along the end wall direction of the fixed plate 1, a movable rod 13 is movably inserted and installed in the second open slot 11, and a first spring 12 is connected between one end of the movable rod 13 far away from the first roller 14 and the bottom end of the inner wall of the second open slot 11. When first roll wheel 14 rolls centre gripping vacuum packaging bag, movable rod 13 can slide in second fluting 11 through first spring 12 for first roll wheel 14 has a cushion effect when rolling on the packaging bag surface, prevents that first roll wheel 14 from crowding the nut to break up.

As a technical optimization scheme of the invention, a first open slot 7 is vertically formed in the top of the supporting plate 5, a first electric telescopic rod 8 is vertically embedded in the first open slot 7, the telescopic end of the first electric telescopic rod 8 faces the fixing plate 1, and the telescopic end of the first electric telescopic rod 8 is connected with the bottom end of the connecting block 6. A electric telescopic handle 8 drives connecting block 6 and reciprocates, makes two first running rollers 14 roll the centre gripping once with nut wrapping bag from the top down, makes the device can detect vacuum packaging bag, has improved the detection range of device.

As a technical optimization scheme of the invention, movable plates 28 are placed on one side, close to each other, of two clamping plates 27 on a second connecting plate 24, open holes 36 are formed in four corners of the side wall of each clamping plate 27 in a penetrating manner, stabilizing rods 30 are movably inserted into the open holes 36, one ends, close to the movable plates 28, of the stabilizing rods 30 are connected with the movable plates 28, third springs 29 are connected between the clamping plates 27 and the corresponding movable plates 28, second rotating motors 35 are embedded and mounted at one ends, close to the second connecting plate 24, of the clamping plates 27, the output ends of the second rotating motors 35 are connected with second electric sliding blocks 26, rubber pads are arranged on one sides, far away from the movable plates 28, of the clamping plates 27, and a plurality of air holes 16 are uniformly formed in the outer side of the first roller 14. When splint 27 centre gripping nut wrapping bag, fly leaf 28 pushes down nut wrapping bag is crowded, and elasticity through third spring 29, make fly leaf 28 in centre gripping nut wrapping bag, fly leaf 28 has a continuous extrusion force to nut wrapping bag, when fly leaf 28 extrusion nut wrapping bag, both can make the device more stable to the centre gripping of nut wrapping bag, can also extrude the inside gas of nut wrapping bag that exists the gas leakage condition, rubber pad on splint 27 can make splint 27 clamp wrapping bag more fastening, blow outward through gas pocket 16, first running roller 14 is when the outside roll of vacuum packaging bag, can directly blow to the wrapping bag, if there is the hole of gas leakage in the wrapping bag, then can be directly blow into the inside of wrapping bag through the hole with gas, make the process of detecting more smooth, when detecting aerifing the wrapping bag, blow outward through gas pocket 16, can blow down the dust in the wrapping bag outside, there is a clear effect to the wrapping bag.

As a technical optimization scheme of the invention, a third open slot 33 is formed in the inclined surface of the triangular inclined block 32, and a plurality of second rollers 34 are rotatably arranged in the third open slot 33. The nut wrapping bag rolls downwards from second roller 34, takes place the shake once more at the rolling in-process, and the detection effect of improvement device to vacuum packaging bag.

When the pneumatic packaging device is used, the device is fed through an existing mechanical claw, when the pneumatic packaging is inspected, the mechanical claw clamps the nut packaging bags to the second connecting plate 24 on the top of the fixing plate 1, then the second electric sliding block 26 slides inside the third sliding groove 25, the clamping plates 27 move close to each other to clamp and fix the nut packaging bags, then the mechanical claw loosens the nut packaging bags, the nut packaging bags move to the lower portion of the fixing plate 1 along with the sliding of the first electric sliding block 17 in the first sliding groove 3, and the mechanical claw continuously feeds other second connecting plates 24 on the fixing plate 1.

In splint 27 centre gripping nut wrapping bag, fly leaf 28 pushes down nut wrapping bag is crowded to elasticity through third spring 29, make fly leaf 28 in centre gripping nut wrapping bag, fly leaf 28 has a continuous extrusion force to nut wrapping bag, when fly leaf 28 extrusion nut wrapping bag, both can make the device more stable to nut wrapping bag's centre gripping, can also extrude the inside gas of nut wrapping bag that exists the gas leakage condition.

When the second connecting plate 24 drives the nut packaging bags to move to the first roller 14, the nut packaging bags without air leakage can be in the moving process, the first roller 14 can block the moving nut packaging bags, at the moment, the first electric slider 17 continues to slide in the first chute 3, and at the moment, the nut packaging bags are blocked by the first roller 14, so that the first electric slider 17 can drive the first slider 20 to slide in the second chute 19 and extrude the second spring 21, when the shifting block 22 touches the contact switch 23, the second electric sliders 26 move away from each other, the clamping plates 27 stop clamping the nut packaging bags, the nut packaging bags fall onto the surface of the conveying belt 31 and are conveyed to be directly packaged and sold; when the nut packaging bag that has the gas leakage condition moves to first running roller 14 department, because the nut packaging bag has gas leakage, so when the first running roller 14 of extrusion, self pressure is not enough to make first slider 20 take place the displacement, and the both sides of nut packaging bag can pass from the gap between two first running rollers 14 when the first running roller 14 of extrusion, when the nut packaging bag moves to the top of triangle sloping block 32 afterwards, splint 27 can loosen, unqualified nut packaging bag can follow triangle sloping block 32 and locate the conveying this moment, collect and reprocess afterwards, can with the distance that changes between two first running rollers 14 through second electric telescopic handle 9, thereby make the device can adapt to the nut packaging bag of more sizes, the practicality of device has been improved.

When detecting vacuum packaging's nut wrapping bag, second rotating electrical machines 35 is rotatory, it rotates to drive splint 27, make two fly leaf 28 on a second connecting plate 24 rotatory to opposite direction, first rotating electrical machines 15 is rotatory, make first roll wheel 14 rotatory to be horizontal with the top of backup pad 5, the gripper is with vacuum packaging's nut wrapping bag centre gripping to the second connecting plate 24 department at fixed plate 1 top, splint 27 clip the encapsulation department of wrapping bag afterwards, rubber pad on splint 27 can make splint 27 clamp the wrapping bag more fasten, when the wrapping bag moves to first roll wheel 14 department, first electric slider 17 stops to slide, first electric telescopic handle 8 drives connecting block 6 and reciprocates this moment, make two first roll wheel 14 roll nut wrapping bag from the top down centre gripping once, first electric slider 17 continues to slide later, when the nut wrapping bag moves to triangle sloping block 32 department, splint 27 loosens the wrapping bag, the nut wrapping bag falls to triangle sloping block 32 department, this moment the nut rolls from second roll wheel 34 downwards, take place the shake again in rolling in-process, through first wrapping bag 14 again, the centre gripping of second wrapping bag 34, the direct roll again can take place again the processing personnel of rethread again to it and collect it again, this moment can be unqualified.

The height of fixed plate 1 can be changed through the lift of hydraulic support pole 4, can make the device detect the vacuum packaging bag of equidimension not, and when 14 roll centre gripping vacuum packaging bags of first running roller, movable rod 13 can slide in second fluting 11 through first spring 12 for first running roller 14 has a buffer power when rolling on the wrapping bag surface, prevents that first running roller 14 from crowding the garrulous nut.

Blow through gas pocket 16 to the outside, first running roller 14 can directly blow to the wrapping bag when the outside of vacuum packaging bag is rolling, if there is the hole of gas leakage in the wrapping bag, then can directly blow into the inside of wrapping bag through the hole with gas, make the process of detecting more smooth, when detecting gas-filled packaging bag, blow through gas pocket 16 outwards, can blow off the dust in the wrapping bag outside, have a clear effect to the wrapping bag.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a detection apparatus for sealing performance behind nut encapsulation in bags, which comprises a fixing plate (1), a serial communication port, backup pad (5) have all been placed along length direction in the both sides bottom of fixed plate (1), be connected with hydraulic support pole (4) between the top both ends of backup pad (5) and the bottom of fixed plate (1), first connecting plate (2) are installed along the length direction cladding in the middle section of fixed plate (1), first spout (3) have been seted up on first connecting plate (2), the inside slidable mounting of first spout (3) has a plurality of first electronic slider (17), one side that first spout (3) were kept away from in first electronic slider (17) is connected with fixture, connecting block (6) have been placed in the top activity of backup pad (5), one side that two connecting block (6) are close to each other all is equipped with and blocks the mechanism, backup pad (5) below that blocks the mechanism is equipped with distinguishes the mechanism.

2. The device for detecting the sealing performance of the packaged nuts after being packaged according to claim 1, wherein the clamping mechanism comprises a first positioning block (18), a second connecting plate (24) and a clamping plate (27), the first positioning block (18) is placed on one side, away from the first sliding chute (3), of the first electric sliding block (17), a second sliding chute (19) is horizontally formed in one side, close to the first electric sliding block (17), of the first positioning block (18) along the length direction, a contact switch (23) is installed on the inner wall of one end, in the advancing direction, of the first electric sliding block (17) through the second sliding chute (19), a first sliding block (20) is slidably installed inside the second sliding chute (19), the first sliding block (20) is located at one end, away from the contact switch (23), one side, close to the first electric sliding block (17), of the first sliding block (20) is connected with the first electric sliding block (17), a second spring (21) is connected between the inner walls of one ends, close to the contact switch (23), of the first sliding block (20), and a shifting block (22) is installed on one side, close to the contact switch (23);

one side of the first locating block (18) far away from the first electric sliding block (17) is connected with a second connecting plate (24), one side of the second connecting plate (24) far away from the first locating block (18) is horizontally provided with a third sliding groove (25) along the length direction, the inside sliding of the third sliding groove (25) is provided with a second electric sliding block (26), and one end of the second electric sliding block (26) far away from the third sliding groove (25) is movably connected with a clamping plate (27).

3. The device for detecting the sealing performance of the packaged nuts, according to claim 1, wherein the blocking mechanism comprises a second electric telescopic rod (9), a clamping block (10), a movable rod (13) and a first roller (14), the second electric telescopic rod (9) is vertically installed on one side, close to each other, of each of the two connecting blocks (6), the connecting block (6) is far away from the telescopic end of the second electric telescopic rod (9), the clamping block (10) is movably connected to the telescopic end of the second electric telescopic rod (9), the movable rod (13) is movably installed on the top and the bottom of each clamping block (10), and the first roller (14) is rotatably installed between the two movable rods (13) on one clamping block (10).

4. The apparatus for detecting sealing performance of packaged nuts according to claim 1, wherein said distinguishing mechanism comprises a conveyor belt (31) and a triangular sloping block (32), the conveyor belt (31) is installed below the clamping block (10) between the two supporting plates (5), the triangular sloping block (32) is installed at the other end of the conveyor belt (31) between the two supporting plates (5), and the sloping surface of the triangular sloping block (32) is far away from the conveyor belt (31).

5. The device for detecting the sealing performance of the packaged nuts after being packed as claimed in claim 3, wherein a first rotating motor (15) is embedded in one side of each clamping block (10) close to the second electric telescopic rod (9), the output end of the first rotating motor (15) is connected with the telescopic end of the second electric telescopic rod (9), a second slot (11) is horizontally formed in the top end and the bottom end of each clamping block (10) close to each other along the end wall direction of the fixing plate (1), the movable rod (13) is movably inserted and installed in the second slot (11), and a first spring (12) is connected between one end of the movable rod (13) far away from the first roller (14) and the bottom end of the inner wall of the second slot (11).

6. The device for detecting the sealing performance of the packaged nuts, according to claim 1, wherein a first slot (7) is vertically formed in the top of the supporting plate (5), a first electric telescopic rod (8) is vertically embedded in the first slot (7), the telescopic end of the first electric telescopic rod (8) faces the fixing plate (1), and the telescopic end of the first electric telescopic rod (8) is connected with the bottom end of the connecting block (6).

7. The device for detecting the sealing performance of the packaged nuts after packaging according to claim 2, wherein one movable plate (28) is disposed on one side, close to each other, of two clamping plates (27) on one second connecting plate (24), open holes (36) are formed in four corners of the side wall of each clamping plate (27) in a penetrating manner, stabilizing rods (30) are movably inserted and mounted in the open holes (36), one ends, close to the movable plates (28), of the stabilizing rods (30) are connected with the movable plates (28), third springs (29) are connected between the clamping plates (27) and the corresponding movable plates (28), a second rotating motor (35) is embedded and mounted at one end, close to the second connecting plate (24), of each clamping plate (27), the output end of each second rotating motor (35) is connected with the second electric sliding block (26), a rubber pad is disposed on one side, far away from the movable plates (28), of each clamping plate (27), and a plurality of air holes (16) are uniformly formed in the outer side of the first roller (14).

8. The apparatus for detecting the sealing performance of packaged nuts as claimed in claim 4, wherein a third slot (33) is opened on the slope of said triangular sloping block (32), and a plurality of second rollers (34) are rotatably installed in said third slot (33).