CN115683726A

CN115683726A - Milk powder detects automatic sampling equipment

Info

Publication number: CN115683726A
Application number: CN202211397176.6A
Authority: CN
Inventors: 张利涛; 刘小范
Original assignee: Lichuan Dengfeng Manufacturing Co ltd
Current assignee: Alxa Right Banner Shentuo Dairy Technology Co ltd; Inner Mongolia Jinhetao Dairy Co ltd; Inner Mongolia Qichen Dairy Co ltd
Priority date: 2022-11-09
Filing date: 2022-11-09
Publication date: 2023-02-03
Anticipated expiration: 2042-11-09
Also published as: CN115683726B

Abstract

The invention belongs to the field of food detection, and particularly relates to automatic sampling equipment for milk powder detection, which comprises a supporting block, wherein a through hole is formed in the central axis position of the supporting block, a supporting cylinder is fixedly arranged above the supporting block, an outer sampling barrel is arranged in the supporting cylinder in a sliding manner, a first cavity is formed in the outer sampling barrel, an inner sampling barrel is arranged in the first cavity in a rotating and sealing manner, a second cavity is formed in the inner sampling barrel, a sampling frame is arranged in the second cavity in a sliding manner, a plurality of sampling test tubes are detachably mounted on the sampling frame, a first opening is formed in the outer sampling barrel, the first opening is mutually communicated with the first cavity, a second opening is formed in the inner sampling barrel, and the second opening is mutually communicated with the second cavity. The milk powder sampling device can automatically finish milk powder sampling at different positions and different heights of the same position when the quality of milk powder is detected, and can improve the accuracy of a detection result.

Description

Milk powder detects automatic sampling equipment

Technical Field

The invention belongs to the field of food detection, and particularly relates to automatic sampling equipment for milk powder detection.

Background

Present carry out the sampling device that quality testing used often to milk powder at people all is, open the thief rod that has a plurality of breachs on the surface, the thief rod is deepened need consume very big vigor and pollute milk powder easily in the milk powder piles, and milk powder piles the milk powder on upper strata and can flow into the lower floor's breach of thief rod when the thief rod is deepened milk powder and is piled, can seriously influence the quality testing accuracy of milk powder. And in order to ensure the accuracy of experiment when carrying out quality testing, also need detect a plurality of loci, the sample collection that the thief rod got is inconvenient, and the time interval of detection is longer, and milk powder exposes for a long time in the air can lead to the rotten of milk powder. The invention provides an automatic sampling device for milk powder detection to solve the problems.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides the automatic sampling equipment for the milk powder detection.

The purpose of the invention can be realized by the following technical scheme: the utility model provides a milk power detects automatic sampling equipment, includes the supporting shoe, supporting shoe center axis position is opened there is the through-hole, the fixed support section of thick bamboo that is provided with in supporting shoe top, the inside slip of support section of thick bamboo is provided with outer sample barrel, the inside first cavity that opens of outer sample barrel, the inside sealed interior sample barrel that is provided with of first cavity, the inside second cavity that opens of interior sample barrel, the inside slip of second cavity is provided with the sample frame, demountable installation has a plurality of sample test tubes on the sample frame, it has first opening to open on the outer sample barrel, first opening and first cavity communicate mutually, it has the second opening to open on the interior sample barrel, second opening and second cavity communicate mutually.

Preferably, a plurality of first notches are formed in the outer circumferential surface of the supporting block, each first notch is internally and fixedly provided with a first rotating shaft, the first rotating shaft is provided with a first connecting block in a rotating mode on the circumferential surface, one side, away from the first rotating shaft, of the first connecting block is provided with a first sliding chute, a first sliding block is arranged in the first sliding chute in a sliding mode, one end, away from the first rotating shaft, of the first sliding block is fixedly provided with a second connecting block, one end, away from the first sliding block, of the second connecting block is fixedly provided with a sleeve, one side, away from the second rotating shaft, of the second connecting block is rotatably provided with a clamping jaw, one end, close to the second connecting block, of the clamping jaw is fixedly provided with a second rotating shaft, the second rotating shaft is rotatably arranged inside the sleeve, and one side, close to each other, of the clamping jaw on the clamping jaw is fixedly provided with elastic rubber. The supporting block can reach the optional position above the sampling milk powder pile, and the sampling requirement of multiple sites is met.

Preferably, a plurality of hydraulic telescopic columns are fixedly arranged above the supporting block, a supporting plate is fixedly arranged above the hydraulic telescopic columns, a third sliding groove is formed in the center of the supporting plate, a clamping block is fixedly arranged on the outer circumferential surface of the inner sampling barrel and can be clamped inside the third sliding groove, and a hydraulic tank is fixedly arranged above the supporting plate.

Preferably, the outer sampling barrel is elliptical cylindrical. When the elliptic cylinder-shaped outer sampling barrel rotates, the long shaft of the elliptic cylinder can push nearby milk powder away to play a certain loosening role, so that the opening is prevented from being blocked.

Preferably, the first opening is located on one side of the minor axis of the outer sampling barrel's elliptical cylinder.

Preferably, two fixed blocks are fixedly arranged below the supporting block and are located on two sides of the through hole, two fourth sliding grooves are formed in one side, opposite to the fixed blocks, of each fixed block, a first sliding rod is arranged inside the fourth sliding grooves in a sliding mode, each first sliding rod is provided with an elastic plate capable of enabling unnecessary milk powder on the outer sampling barrel to bounce off the first sliding rod, each elastic plate is arranged on one side, close to the through hole, of the first sliding rod, a first spring is connected between the first sliding rod and the fixed blocks, each first sliding rod is provided with a protruding block fixedly on one side, close to a first notch, of each fixed block, a fifth sliding groove is formed in one end, close to the first notch, of the fixed block, a second sliding rod is arranged in a sliding mode inside the fifth sliding groove, one end of the second sliding rod extends out of the fifth sliding groove, a top plate is fixedly arranged on one end, extending out of the fifth sliding groove, and a second spring is connected between the fixed block and the top plate. The outer sampling bucket of bullet board intermittent type nature bullet hitting can fall the milk power bullet of surface, guarantees the cleanness of equipment, does not also pollute milk power.

Preferably, a plurality of second notches are opened to the inside of outer sampling bucket, the fixed a plurality of second sliders that are provided with in the interior sampling bucket outside, every the second slider gos deep into inside the second notch, the one end that the supporting shoe was kept away from to interior sampling bucket stretches out outer sampling bucket, the fixed driven gear that is provided with of one end that outer sampling bucket stretched out interior sampling bucket, the fixed driving motor that is provided with in backup pad top, driving motor's the fixed driving gear that is provided with of output, the intermeshing transmission between driving gear and the driven gear.

Preferably, a third rotating shaft is fixedly arranged inside the first opening, a clamping plate capable of closing the first opening is rotatably arranged on the outer circumferential surface of the third rotating shaft, one end of the clamping plate extends out of the first opening, a plurality of clamping strips are arranged at one end of the clamping plate extending out of the first opening, and a torsion spring is connected between the clamping plate and the third rotating shaft. The card strip on the cardboard can be smashed the caking milk powder that contacts, prevents to block up the opening.

Preferably, one side of the sampling frame, which is far away from the second cavity, is fixedly provided with a slide bar, a ventilation channel is formed in the slide bar along the axis direction of the inner sampling barrel, a sixth sliding groove is formed in the inner sampling barrel, and the slide bar is arranged in the sixth sliding groove in a sliding and sealing manner.

Has the advantages that:

1. according to the invention, through the matching between the inner sampling barrel 15 and the outer sampling barrel 13, the separated collection of the milk powder at the same position point and different heights is realized, the collected milk powder is not mixed, and the accuracy of milk powder detection can be ensured.

2. According to the invention, the elliptic cylindrical design of the external sampling barrel is adopted, so that milk powder is stirred when being collected, and the opening blockage caused by the fact that the milk powder is fully inserted into the opening is prevented.

3. According to the invention, through the matching between the elastic plate and the top plate, the cleaning of the milk powder adhered to the surface of the external sampling barrel after collection is realized, and the quality of the milk powder is not confused when the sampling site is changed.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a top view of the present invention;

FIG. 4 isbase:Sub>A cross-sectional view taken at A-A of FIG. 2;

FIG. 5 is a cross-sectional view taken at B-B of FIG. 3;

FIG. 6 is a schematic diagram of a sampling bucket;

FIG. 7 is a front view of the sampling bucket;

FIG. 8 is a left side view of the sampling bucket;

FIG. 9 is a cross-sectional view taken at C-C of FIG. 7;

FIG. 10 is a cross-sectional view taken at D-D in FIG. 7

FIG. 11 is a cross-sectional axial view taken along line E-E of FIG. 8

Fig. 12 is a schematic view of a sampling rack.

In the figure: the device comprises a supporting block 10, a through hole 11, a supporting cylinder 12, an outer sampling barrel 13, a first cavity 14, an inner sampling barrel 15, a second cavity 16, a sampling frame 17, a sampling test tube 18, a first opening 19, a second opening 20, a first notch 21, a first rotating shaft 22, a first connecting block 23, a first sliding groove 24, a first sliding block 25, a second connecting block 26, a sleeve 27, a clamping jaw 28, a second rotating shaft 29, elastic rubber 30, a hydraulic telescopic column 31, a supporting plate 32, a third sliding groove 46, a clamping block 47, a hydraulic box 33, a fixing block 34, a fourth sliding groove 35, a first sliding rod 36, an elastic plate 43, a first spring 37, a bump 38, a fifth sliding groove 39, a second sliding rod 40, a top plate 41, a second spring 42, a second notch 44, a second sliding block 45, a driven gear 48, a driving motor 49, a driving gear 50, a third rotating shaft 51, a clamping plate 52, a clamping strip 53, a sixth sliding strip 54, a sliding strip 55 and a ventilation channel 56.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

In the description of the present invention, it should be noted that the terms "inside", "below", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally placed when the products of the present invention are used, and are only used for convenience of description and simplification of the description, but do not indicate or imply that the devices or elements referred to must have specific orientations, be constructed and operated in specific orientations, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

With reference to the accompanying drawings 1-12, an automatic milk powder sampling device comprises a supporting block 10, a through hole 11 is formed in the central axis position of the supporting block 10, and a supporting cylinder 12 is fixedly arranged above the supporting block 10, and is characterized in that an outer sampling barrel 13 is arranged inside the supporting cylinder 12 in a sliding manner, a first cavity 14 is formed inside the outer sampling barrel 13, an inner sampling barrel 15 is arranged inside the first cavity 14 in a rotating and sealing manner, a second cavity 16 is formed inside the inner sampling barrel 15, a sampling frame 17 is arranged inside the second cavity 16 in a sliding manner, a plurality of sampling test tubes 18 are detachably mounted on the sampling frame 17, a first opening 19 is formed in the outer sampling barrel 13, the first opening 19 is mutually communicated with the first cavity 14, a second opening 20 is formed in the inner sampling barrel 15, and the second opening 20 is mutually communicated with the second cavity 16.

Furthermore, a plurality of first notches 21 are formed in the outer circumferential surface of the supporting block 10, a first rotating shaft 22 is fixedly arranged inside each first notch 21, a first connecting block 23 is rotatably arranged on the circumferential surface of each first rotating shaft 22, a first sliding groove 24 is formed in one side, away from the first rotating shaft 22, of each first connecting block 23, a first sliding block 25 is slidably arranged inside each first sliding groove 24, a second connecting block 26 is fixedly arranged at one end, away from the first rotating shaft 22, of each first sliding block 25, a sleeve 27 is fixedly arranged at one end, away from the first sliding block 25, of each second connecting block 26, a clamping jaw 28 is rotatably arranged at one side, away from the second rotating shaft 22, of each clamping jaw 28, a second rotating shaft 29 is fixedly arranged at one end, close to the second connecting block 26, of each second rotating shaft 29 is rotatably arranged inside the sleeve 27, and elastic rubber 30 is fixedly arranged at one side, close to each other, of the clamping jaws on the clamping jaws 28.

Furthermore, a plurality of hydraulic telescopic columns 31 are fixedly arranged above the supporting block 10, a supporting plate 32 is fixedly arranged above the hydraulic telescopic columns 31, a third sliding groove 46 is formed in the center of the supporting plate 32, a clamping block 47 is fixedly arranged on the outer circumferential surface of the inner sampling barrel 15, the clamping block 47 can be clamped inside the third sliding groove 46, and a hydraulic tank 33 is fixedly arranged above the supporting plate 32.

Further, the outer sampling barrel 13 has an elliptic cylindrical shape.

Further, the first opening 19 is located on one side of the minor axis of the elliptic cylinder of the outer sampling barrel 13.

Further, two fixing blocks 34 are fixedly arranged below the supporting block 10, the two fixing blocks 34 are located on two sides of the through hole 11, fourth sliding grooves 35 are formed in opposite sides of the two fixing blocks 34, a first sliding rod 36 is slidably arranged inside each fourth sliding groove 35, an elastic plate 43 capable of enabling surplus milk powder on the outer sampling barrel 13 to be ejected is fixedly arranged on one side, close to the through hole 11, of each first sliding rod 36, a first spring 37 is connected between each first sliding rod 36 and the fixing block 34, a protruding block 38 is fixedly arranged on one side, close to one first notch 21, of each first sliding rod 36, a fifth sliding groove 39 is formed in one end, close to one first notch 21, of each fixing block 34, a second sliding rod 40 is slidably arranged inside each fifth sliding groove 39, one end of each second sliding rod 40 extends out of the fifth sliding groove 39, a top plate 41 is fixedly arranged at one end, extending out of each second sliding rod 40, and a second spring 42 is connected between each fixing block 34 and the top plate 41.

Further, a plurality of second notches 44 are opened to the inside of outer sampling bucket 13, the fixed a plurality of second sliders 45 that are provided with in interior sampling bucket 15 outside, every second slider 45 is deepened inside second notch 44, the one end that supporting block 10 was kept away from to interior sampling bucket 15 stretches out outer sampling bucket 13, the fixed driven gear 48 that is provided with in one end that interior sampling bucket 15 was stretched out to outer sampling bucket 13, the fixed driving motor 49 that is provided with in backup pad 32 top, the fixed driving gear 50 that is provided with of driving motor 49 output, intermeshing transmission between driving gear 50 and the driven gear 49.

Further, a third rotating shaft 51 is fixedly arranged inside the first opening 19, a clamping plate 52 capable of closing the first opening 19 is rotatably arranged on the outer circumferential surface of the third rotating shaft 51, one end of the clamping plate 52 extends out of the first opening 19, a plurality of clamping strips 53 are arranged at one end of the clamping plate 52 extending out of the first opening 19, and a torsion spring is connected between the clamping plate 52 and the third rotating shaft 51.

Furthermore, a sliding strip 55 is fixedly arranged on one side of the sampling frame 17 away from the second cavity 16, a ventilation channel 56 is formed in the sliding strip 55 along the axial direction of the inner sampling barrel 15, a sixth sliding groove 54 is formed in the inner sampling barrel 15, and the sliding strip 55 is arranged in the sixth sliding groove 54 in a sliding and sealing manner.

The working principle is as follows: when the quality of the large barrel of milk powder which is just produced needs to be detected, the invention is firstly clamped above the barrel filled with the milk powder by the clamping jaws 28, a plurality of sampling test tubes 18 are arranged on the sampling frame 17, and then the sampling frame 17 provided with the sampling test tubes 18 is arranged inside the inner sampling barrel 15. During the installation process, the slide bar 55 slides along the sixth chute 54 into the second cavity 16, and the air vent channel 56 on the slide bar 55 can be placed to prevent the pressure in the sealed space generated at the bottom from being too high, so that the sampling frame 17 cannot slide to the bottom of the sixth chute 54.

Before detection, the sampling site to be detected needs to be determined in advance, and after the site needing to be sampled is determined, the supporting block 10 is pushed to the designated site. Then start hydraulic tank 33 and drive hydraulic stretching post 31 and shorten, along with the shortening of hydraulic stretching post 31, sampling barrel 15 shortens along with hydraulic stretching post 31 in backup pad 32 can take, and the effect of fixture block 47 can drive outer sampling barrel 13 simultaneously and then descend. Start driving motor 49 when outer sampling bucket 13 bottom contacts milk powder, driving motor 49 drives driving gear 50 and begins rotatoryly, and driving gear 50 drives driven gear 49 rotatoryly, and driven gear 49 can drive interior sampling bucket 15 and rotate, and the fixture block 47 of interior sampling bucket 15 surface can drive outer sampling bucket 13 and rotate in step when second notch 44 is inside to slide extreme position, and second opening 20 is closed by outer sampling bucket 13 this moment.

Treat that outer sampling barrel 13 reaches after the assigned position, close hydraulic tank 33, reversal start driving motor 49, fixture block 47 is driven and is in the inside reverse slip of second notch 44, after fixture block 47 slides to extreme position, first opening 19 and second opening 20 communicate each other this moment, outer sampling barrel 13 also can be driven the reversal simultaneously, cardboard 52 on the in-process of outer sampling barrel 13 reversal stretches out the resistance that first opening 19's one end can receive milk powder, the elasticity that the cardboard 52 can overcome the torsional spring is rotatory certain angle round third pivot 51 under the effect of the resistance of milk powder, cardboard 52 after the rotation can not be closed first opening 19, the one end that cardboard 52 stretches out first opening 19 simultaneously can be dialled milk powder into first opening 19, milk powder can directly fall into inside second cavity 16 after through 19 second openings 20 of first opening, the milk powder that falls into inside second cavity 16 can all enter into sample test tube 18. When the cardboard 52 is dialled the big milk powder caking by the card strip 53 on the cardboard 52, can carry out preliminary smashing to milk powder, can prevent that big caking from blockking up first opening 19.

The first opening 19 is arranged on the short axial surface of the elliptic cylinder of the outer sampling barrel 13, the long axis of the elliptic cylinder pushes away the milk powder when the outer sampling barrel 13 rotates, the milk powder arriving at the short axis behind the long axis cannot be completely gathered on the first opening 19 at a time, and the outer sampling barrel 13 can play a certain loosening role on the nearby milk powder when rotating, so that the milk powder can be prevented from being gathered on the first opening 19 at a time to cause the blockage of the first opening 19.

When the milk powder collected by the sampling test tube 18 meets the requirement, the driving motor 49 is driven to rotate reversely, the outer sampling barrel 13 rotates reversely, the second opening 20 can be closed by the outer sampling barrel 13, and the clamping plate 52 can close the first opening 19. Then the hydraulic tank 33 is started, the hydraulic tank 33 drives the hydraulic telescopic column 31 to extend and simultaneously drives the outer sampling barrel 13 to extend out of the milk powder barrel, when the outer sampling barrel 13 extends out of the milk powder barrel in a rotating mode, when the long axis of the elliptic column of the outer sampling barrel 13 rotates to be opposite to the elastic plate 43, the outer sampling barrel 13 pushes against the elastic plate 43 to overcome the elastic force of the first spring 37 to push the first sliding rod 36 back for a certain distance, when the first sliding rod 36 retracts, the lug 38 on the first sliding rod 36 can push the second sliding rod 40 up, and through the second sliding rod 40, under the action of the second spring 42, the lug 38 can push back into the fourth sliding chute 35 again after passing through the second sliding rod 40 and clamp the first sliding rod 36. When the major axis of the elliptic cylinder of the outer sampling barrel 13 rotates to push the top plate 41, the top plate 41 will overcome the elastic force of the second spring 42 to take the second sliding rod 40 out of the fourth sliding slot 35, and at the same time, the protrusion 38 loses the effect of the second sliding rod 40, the elastic force of the first spring 37 will be released instantly, and the elastic plate 43 will be driven to eject the outer sampling barrel 13. The powdered milk on the surface of the outer sampling barrel 13 gradually falls into the powdered milk barrel below after the elastic plate 43 is flicked for a plurality of times.

After the sampling barrel 13 returns to the initial position, the hydraulic tank 33 and the driving motor 49 are closed, and then the sampling frame 17 is directly taken out, so that the quality of the milk powder can be directly detected.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a milk power detects automatic sampling equipment, includes supporting shoe (10), supporting shoe (10) center axis position is opened there is through-hole (11), supporting shoe (10) top is fixed to be provided with and supports a section of thick bamboo (12), its characterized in that, it is provided with outer sample bucket (13) to support inside the sliding of a section of thick bamboo (12), outer sample bucket (13) inside is opened there is first cavity (14), sample bucket (15) in first cavity (14) inside rotating seal is provided with, inside opening of interior sample bucket (15) has second cavity (16), the inside sliding of second cavity (16) is provided with sample frame (17), demountable installation has a plurality of sample test tubes (18) on sample frame (17), it has first opening (19) to open on outer sample bucket (13), first opening (19) and first cavity (14) communicate with each other, it has second opening (20) to open on interior sample bucket (15), second opening (20) and second cavity (16) communicate with each other.

2. The automatic sampling device for milk powder detection according to claim 1, wherein a plurality of first notches (21) are formed in the outer circumferential surface of the supporting block (10), a first rotating shaft (22) is fixedly arranged inside each first notch (21), a first connecting block (23) is rotatably arranged on the circumferential surface of each first rotating shaft (22), a first sliding groove (24) is formed in one side, away from the first rotating shaft (22), of each first connecting block (23), a first sliding block (25) is slidably arranged inside each first sliding groove (24), a second connecting block (26) is fixedly arranged at one end, away from the first rotating shaft (22), of each first sliding block (25), a sleeve (27) is fixedly arranged at one end, away from the first sliding block (25), of each second connecting block (26), a clamping jaw (28) is rotatably arranged at one side, away from the second rotating shaft (27), of each clamping jaw (28) is fixedly arranged at one end, close to the second connecting block (26), a second rotating shaft (29) is rotatably arranged inside the sleeve (27), and elastic clamping jaws (30) are arranged at one side, close to the clamping jaws (30) which are fixedly arranged on the sleeve (27).

3. The automatic sampling device for milk powder detection according to claim 1, wherein a plurality of hydraulic telescopic columns (31) are fixedly arranged above the supporting block (10), a supporting plate (32) is fixedly arranged above the hydraulic telescopic columns (31), a third sliding groove (46) is formed in the center of the supporting plate (32), a clamping block (47) is fixedly arranged on the outer circumferential surface of the inner sampling barrel (15), the clamping block (47) can be clamped inside the third sliding groove (46), and a hydraulic tank (33) is fixedly arranged above the supporting plate (32).

4. The automatic sampling device for milk powder detection as claimed in claim 1, wherein the outer sampling barrel (13) is elliptical cylindrical.

5. A milk powder detecting automatic sampling device according to claim 1, wherein the first opening (19) is located at one side of the minor axis of the elliptic cylinder of the outer sampling bucket (13).

6. The automatic sampling device for milk powder detection according to claim 1, fixed two fixed blocks (34) that are provided with in supporting shoe (10) below, two fixed block (34) are located the both sides of through-hole (11), two open one side that fixed block (34) are relative has fourth spout (35), every fourth spout (35) inside slip is provided with first slide bar (36), every first slide bar (36) are close to one side fixed being provided with of through-hole (11) can be with play board (43) that unnecessary milk powder was gone up in outer sampling bucket (13) down, every be connected with first spring (37) between first slide bar (36) and fixed block (34), every first slide bar (36) are close to one side fixed being provided with lug (38) of a first notch (21), every fixed block (34) are close to the one end of a first notch (21) and are opened fifth spout (39), every the inside slip of fifth spout (39) is provided with second slide bar (40), every second slide bar (40) have one end to stretch out inside fifth spout (39), every second slide bar (40) stretch out and be provided with between every fixed second spout (41) and every fixed roof (41).

7. The automatic sampling device for detecting the milk powder according to claim 1, wherein a plurality of second notches (44) are formed in the outer sampling barrel (13), a plurality of second sliding blocks (45) are fixedly arranged on the outer side of the inner sampling barrel (15), each second sliding block (45) extends into the second notch (44), one end, far away from the supporting block (10), of the inner sampling barrel (15) extends out of the outer sampling barrel (13), one end, extending out of the inner sampling barrel (15), of the outer sampling barrel (13) is fixedly provided with a driven gear (48), a driving motor (49) is fixedly arranged above the supporting plate (32), an output end of the driving motor (49) is fixedly provided with a driving gear (50), and the driving gear (50) and the driven gear (49) are in meshed transmission with each other.

8. The automatic sampling device for milk powder detection according to claim 1, wherein a third rotating shaft (51) is fixedly arranged inside the first opening (19), a clamping plate (52) capable of closing the first opening (19) is rotatably arranged on the outer circumferential surface of the third rotating shaft (51), one end of the clamping plate (52) extends out of the first opening (19), a plurality of clamping strips (53) are arranged at one end of the clamping plate (52) extending out of the first opening (19), and a torsion spring is connected between the clamping plate (52) and the third rotating shaft (51).

9. The automatic sampling device for detecting the milk powder according to claim 1, wherein a slide bar (55) is fixedly arranged on one side of the sampling frame (17) far away from the second cavity (16), a ventilation channel (56) is arranged on the slide bar (55) along the axial direction of the inner sampling barrel (15), a sixth sliding groove (54) is formed in the inner sampling barrel (15), and the slide bar (55) is arranged in the sixth sliding groove (54) in a sliding and sealing manner.