CN111829846A

CN111829846A - Automatic detection processing method for residual pesticides of fruits and vegetables

Info

Publication number: CN111829846A
Application number: CN202010682321.XA
Authority: CN
Inventors: 曹方芹; 程致远
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2020-10-27

Abstract

The invention relates to the technical field of pesticide detection, in particular to an automatic detection processing method of residual pesticides of fruits and vegetables, wherein an automatic detector used in the detection method comprises a separation mechanism, a squeezing mechanism and a stirring mechanism, wherein the squeezing mechanism is arranged on the separation mechanism, the stirring mechanism is arranged in the middle of the squeezing mechanism, the separation mechanism comprises a bottom plate, a mounting hole, an inner sleeve, an outer sleeve, a filtering hole, a vertical groove, a rotating pin, a discharging pipe, a sampling valve, a flow guide pipe, a regulating valve, a side plate and a top plate, a lifting plate can be driven by a screw thread to move up and down by a motor of the automatic detection processing method, the lifting plate can drive a lower pressing plate to move up by utilizing an inclined rod and a seesaw when pushing the upper pressing plate to move down, so as to squeeze the fruits and vegetables, after the fruits and the vegetables are discharged, juice can be discharged from the filtering hole, detection sampling can be performed.

Description

Automatic detection processing method for residual pesticides of fruits and vegetables

Technical Field

The invention relates to the technical field of pesticide detection, in particular to an automatic detection processing method of residual pesticides of fruits and vegetables.

Background

The development of agricultural industrialization makes the production of agricultural products depend on exogenous substances such as pesticides, antibiotics and hormones. The amount of agricultural chemicals in agricultural products in China is high, and the unreasonable use of the substances can lead to the overproof of the agricultural chemical residues, influence the edible safety of consumers, cause the consumers to have diseases and abnormal development in serious cases, and even directly cause poisoning death, the existing rapid detection method for the agricultural chemical residues is various in types, and the method mainly comprises two categories according to the principle: biochemical assays and chromatographic assays.

In order to fully detect the residual quantity of pesticides in fruits and vegetables, at present, fruit and vegetable juice is utilized to carry out colorimetric detection, so that the residual grade of the pesticides in the fruits and vegetables is determined, and the safety of agricultural food is ensured.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides an automatic detection processing method of residual pesticides on fruits and vegetables.

The technical scheme adopted by the invention for solving the technical problems is as follows: an automatic detection processing method of fruit and vegetable residual pesticides comprises the following steps:

s1: firstly, randomly selecting fruits and vegetables of different batches to obtain three groups of fruit and vegetable samples, wherein each group of fruit and vegetable samples is required to contain a plurality of fruits and vegetables, then uniformly cutting the same group of fruits and vegetables to obtain cut pieces with uniform sizes, then uniformly mixing the cut pieces, and randomly sampling, wherein the sampling weights of the three groups of fruits and vegetables are required to be the same;

s2: then adding the three groups of fruit and vegetable samples processed in the step S1 into an automatic detector, juicing the samples through a pressurizing mechanism in the automatic detector, and fully crushing the samples through a stirring mechanism before squeezing so as to fully extrude juice in the fruits and vegetables;

s3: after juicing is finished, the juice can automatically flow to a detection area through the filtering structure, finally, the sampling mechanism is started, pesticide content detection is carried out on the juice of the fruits and vegetables, and after detection is finished, automatic cleaning can be carried out through the cleaning mechanism of the automatic detector, so that convenience is brought to the next detection;

wherein the automatic detector used in S2 comprises a separating mechanism, a squeezing mechanism and a stirring mechanism, the squeezing mechanism is arranged on the separating mechanism, the stirring mechanism is arranged in the middle of the squeezing mechanism, the separating mechanism comprises a bottom plate, a mounting hole, an inner sleeve, an outer sleeve, filtering holes, a vertical groove, a rotating pin, a discharge pipe, a sampling valve, a flow guide pipe, a regulating valve, a side plate and a top plate, the upper side of the bottom plate is fixedly connected with the inner sleeve, the edge of the bottom plate is provided with a plurality of mounting holes, the lower end of the inner sleeve is bilaterally provided with the vertical groove, the rotating pin is embedded between the opposite inner walls of the vertical groove, the outer sleeve is fixedly sleeved outside the middle of the inner sleeve, the outer sleeve is provided with a plurality of filtering holes, the sampling pipe is fixedly embedded on the outer wall of the bottom end of the outer sleeve, the, the honeycomb duct is provided with an adjusting valve, a top plate is arranged above the inner sleeve, the top plate is fixedly connected with a side plate of the inner sleeve, and a bearing seat is fixed at the middle part of the side plate through screws.

Specifically, the squeezing mechanism comprises a first motor, a screw rod, a thread bush, a lifting plate, a guide rod, an inclined rod, a seesaw, a slide block, a slide rail and a slide groove, the first motor is fixed in the middle of the upper side of the top plate through screws, an output shaft of the first motor penetrates through the top plate and is fixedly connected with a screw rod, the bottom end of the screw rod is rotatably connected with the bearing seat through a bearing, a thread sleeve is sleeved outside the screw rod, a lifting plate is fixedly sleeved on the outer side of the threaded sleeve, a guide rod is fixedly connected to the lower side of the lifting plate, the two ends of the lifting plate are respectively hinged with an oblique rod, the bottom ends of the oblique rods are respectively hinged with a seesaw, the two seesaws are respectively sleeved on the outer side of the rotating pin in a rotating way, the top of seesaw all articulates there is the slider, the top of slider all is equipped with the slide rail, the downside of slide rail all is equipped with the spout, the slider all inlays to be established in adjacent spout.

Specifically, the stirring mechanism comprises an upper pressing plate, a second motor, an upper rotary table, a first stirring rod, a lower pressing plate, a third motor, a lower rotary table, a second stirring rod, a first rubber sleeve and a second rubber sleeve, wherein the upper pressing plate and the lower pressing plate are both sleeved on an inner sleeve, the upper pressing plate is fixedly connected to the bottom ends of two guide rods, the lower pressing plate is fixed on the upper sides of two slide rails through screws, the second motor is fixed on the middle part of the upper side of the upper pressing plate, an output shaft of the second motor penetrates through the upper pressing plate and is fixedly connected with the upper rotary table, a plurality of first stirring rods are embedded on the lower side of the upper rotary table at equal intervals, the third motor is fixed on the lower side of the lower pressing plate through screws, the output shaft of the third motor penetrates through the lower pressing plate and is fixedly connected with the lower rotary table, the second stirring rods are embedded on the upper side of the lower rotary table at equal intervals, and, a rubber sleeve is pasted on the outer sides of the edges of the upper turntable and the lower turntable.

Specifically, the pipe diameter of the discharge pipe is larger than 10 cm, and a plurality of filter holes are arranged on the outer wall of the inner sleeve at equal intervals.

Specifically, the lifting plate is connected with the side plate in a sliding mode, and the threaded sleeve is connected with the screw in a threaded mode.

Specifically, the cross-section of spout is "T" font structure, the structure of slider and the structure looks adaptation of spout, it is a plurality of puddler and a plurality of puddler No. two set up at interval in proper order.

The invention has the beneficial effects that:

(1) the invention relates to an automatic detection processing method of residual pesticides on fruits and vegetables, wherein a motor can drive a lifting plate to move up and down through threads, when the lifting plate pushes an upper pressing plate to move down, the lower pressing plate can be driven to move up through a diagonal rod and a seesaw so as to squeeze fruits and vegetables, after juice of the fruits and vegetables is extracted, the juice can be discharged from a filtering hole and further temporarily stored in a gap between an inner sleeve and an outer sleeve, and detection sampling can be carried out only by opening a sampling valve.

(2) According to the automatic detection processing method for the residual pesticides of the fruits and vegetables, the upper rotary table and the lower rotary table are arranged between the lower pressing plate and the upper pressing plate, the staggered stirring rods can fully stir the fruits and vegetables, the compaction degree of the fruits and vegetables can be effectively improved in the squeezing process, and the juice yield of the fruits and vegetables is further improved.

(3) According to the automatic detection and treatment method for the residual pesticides of fruits and vegetables, the outer sleeve is sleeved on the outer side of the inner sleeve, the filtering holes are formed in the outer wall of the inner sleeve, juice can be filtered out during squeezing, the adjusting valve is opened during cleaning, back washing can be carried out by using tap water, washing water enters the stirring space through the gap of the sleeve, the problems of blocking of the filtering holes and residual broken slag can be avoided, broken slag and waste water can be discharged from the discharging pipe, and cleaning is convenient.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a flow chart of the method of the present invention

FIG. 2 is a cross-sectional view of an automatic detector used in the present invention;

FIG. 3 is a schematic view showing the construction of a press mechanism in an automatic detector used in the present invention;

FIG. 4 is an enlarged view of the structure of FIG. 2;

FIG. 5 is a schematic diagram of the structure of the slide and the slide rail of the automatic detector used in the present invention;

fig. 6 is a schematic view showing the structure of a lower platen in an automatic detector used in the present invention.

In the figure: 1. a separating mechanism; 11. a base plate; 12. mounting holes; 13. an inner sleeve; 14. an outer sleeve; 15. filtering holes; 16. a vertical slot; 17. rotating the pin; 18. a discharge pipe; 19. a sampling tube; 110. a sampling valve; 111. a flow guide pipe; 112. adjusting a valve; 113. a side plate; 114. a top plate; 115. a bearing seat; 2. a squeezing mechanism; 21. a first motor; 22. a screw; 23. a threaded sleeve; 24. a lifting plate; 25. a guide bar; 26. a diagonal bar; 27. a seesaw; 28. a slider; 29. a slide rail; 210. a chute; 3. a stirring mechanism; 31. an upper pressure plate; 32. a second motor; 33. an upper turntable; 34. a first stirring rod; 35. a lower pressing plate; 36. a third motor; 37. a lower turntable; 38. a second stirring rod; 39. a first rubber sleeve; 310. and a second rubber sleeve.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-6, the method for automatically detecting and processing the residual pesticide on fruits and vegetables according to the present invention comprises the following steps:

wherein the automated inspection ware that uses in S2 includes separating mechanism 1, squeezing mechanism 2 and rabbling mechanism 3, install squeezing mechanism 2 on separating mechanism 1, squeezing mechanism 2' S mid-mounting has rabbling mechanism 3, squeezes the fruit vegetables by squeezing mechanism 2, stirs the bits of broken glass by rabbling mechanism 3, improves and squeezes the effect.

Specifically, separating mechanism 1 includes bottom plate 11, mounting hole 12, inner skleeve 13, outer sleeve 14, filtration pore 15, perpendicular groove 16, commentaries on classics round pin 17, row's material pipe 18, sampling tube 19, sample valve 110, honeycomb duct 111, governing valve 112, curb plate 113 and roof 114, the upside fixedly connected with inner skleeve 13 of bottom plate 11, a plurality of mounting holes 12 have been seted up at bottom plate 11 edge, inner skleeve 13 lower extreme bilateral symmetry has seted up perpendicular groove 16, all set up commentaries on classics round pin 17 between the relative inner wall in perpendicular groove 16, the fixed cover in middle part outside of inner skleeve 13 is equipped with outer sleeve 14, a plurality of filtration pores 15 have been seted up to inner skleeve 13 outer wall, outer sleeve 14's bottom outer wall is fixed to set up sampling tube 19, install sample valve 110 on the sampling tube 19, outer sleeve 14's top outer wall is fixed to set up, a top plate 114 is arranged above the inner sleeve 13, a side plate 113 is fixedly connected with the top plate 114 and the inner sleeve 13, a bearing seat 115 is fixed to the middle of the side plate 113 through screws, juice can overflow from the filtering holes 15 after the fruits and vegetables are squeezed out, the juice enters a gap between the inner sleeve 13 and the outer sleeve 14, and at the moment, the sampling valve 110 is opened, so that detection liquid can be received.

Specifically, the squeezing mechanism 2 comprises a first motor 21, a screw rod 22, a threaded sleeve 23, a lifting plate 24, a guide rod 25, an inclined rod 26, a seesaw 27, a sliding block 28, a sliding rail 29 and a sliding groove 210, wherein the first motor 21 is fixed in the middle of the upper side of a top plate 114 through screws, an output shaft of the first motor 21 penetrates through the top plate 114 and is fixedly connected with the screw rod 22, the bottom end of the screw rod 22 is rotatably connected with a bearing seat 115 through a bearing, the threaded sleeve 23 is sleeved on the outer side of the screw rod 22, the lifting plate 24 is fixedly sleeved on the outer side of the threaded sleeve 23, the guide rod 25 is fixedly connected with the lower side of the lifting plate 24, the two ends of the lifting plate 24 are respectively hinged with the inclined rod 26, the bottom ends of the inclined rods 26 are respectively hinged with the seesaw 27, the two seesaws 27 are respectively rotatably sleeved on the outer side of a rotating pin 17, the top, all the cover of downside of slide rail 29 is equipped with spout 210, slider 28 all inlays and establishes in adjacent spout 210, and lifter plate 24 descends, and down tube 26 can promote the outer end decline of seesaw 27, and then makes the other end perk of seesaw 27, can push up and push down clamp 35 and rise, and top clamp 31 is promoted by lifter plate 24 and descends, can extrude the fruit vegetables and go out the juice.

Specifically, the stirring mechanism 3 includes an upper press plate 31, a second motor 32, an upper rotary table 33, a first stirring rod 34, a lower press plate 35, a third motor 36, a lower rotary table 37, a second stirring rod 38, a first rubber sleeve 39 and a second rubber sleeve 310, the upper press plate 31 and the lower press plate 35 are all sleeved on the inner sleeve 13, the upper press plate 31 is fixedly connected to the bottom ends of the two guide rods 25, the lower press plate 35 is fixed to the upper sides of the two slide rails 29 by screws, the upper side middle part of the upper press plate 31 is fixed to the second motor 32 by screws, the output shaft of the second motor 32 passes through the upper press plate 31 and is fixedly connected with the upper rotary table 33, the lower side of the upper rotary table 33 is embedded with a plurality of first stirring rods 34 at equal intervals, the lower side middle part of the lower press plate 35 is fixed to the third motor 36 by screws, the output shaft of the third motor 36 passes through the lower press plate 35 and is fixedly connected with the lower rotary table 37, the upper, the marginal outside of top board 31 and holding down plate 35 all pastes No. two gum covers 310, the marginal outside of going up carousel 33 and lower carousel 37 all pastes No. one gum cover 39, and the output opposite direction of No. two motors 32 and No. three motors 36 can drive puddler 34 and No. two puddler 38 antiport, and a puddler 34 and No. two puddler 38 of dislocation set can the intensive mixing pulverize the fruit vegetables at the relative motion in-process, can improve the compaction degree of the flow of squeezing out juice.

Specifically, the pipe diameter of the discharge pipe 18 is larger than 10 cm, the plurality of filtering holes 15 are equidistantly formed in the outer wall of the inner sleeve 13, the filtering holes 15 are formed in the inner sleeve 13, and juice can be cached between the inner sleeve 13 and the outer sleeve 14.

Specifically, the lifting plate 24 is slidably connected with the side plate 113, the threaded sleeve 23 is in threaded connection with the screw 22, the screw 22 drives the threaded sleeve 23 to move up and down, and the threaded sleeve 23 drives the lifting plate 24 to move up and down.

Specifically, the cross-section of spout 210 is "T" font structure, the structure of slider 28 and the structure looks adaptation of spout 210, when lower clamp plate 35 rose, slider 28 can slide in slide rail 29, can satisfy the slider 28 support position change's that the change of seesaw 27 angle caused problem, and is a plurality of puddler 34 and a plurality of puddler 38 set up at intervals in proper order, and the puddler 34 and the puddler 38 of dislocation set can fully stir and pulverize the fruit vegetables in relative motion in-process, can improve the compaction degree of the flow of squeezing out the juice.

When the fruit and vegetable squeezer is used, when the lifting plate 24 is located at the highest end, fruits and vegetables to be detected are put into the inner sleeve 13, the first motor 21 is started, the first motor 21 drives the screw rod 22 to rotate, the screw rod 22 can drive the threaded sleeve 23 to descend in a threaded manner under the limiting action of the side plate 113 and the lifting plate 24, so that the lifting plate 24 descends, the inclined rod 26 can push the outer end of the seesaw 27 to descend in the descending process of the lifting plate 24, so that the other end of the seesaw 27 is tilted, the lower pressing plate 35 can be pushed to ascend, when the lower pressing plate 35 ascends, the slider 28 can slide in the sliding rail 29, the problem of supporting position change of the slider 28 caused by angle change of the seesaw 27 can be solved, the lower pressing plate 35 can be ensured to ascend stably along the inner wall of the inner sleeve 13, meanwhile, the lifting plate 24 descends to push the upper pressing plate 31 to descend stably along the inner wall of the, then the second motor 32 and the third motor 36 are started, and the output directions of the second motor 32 and the third motor 36 are opposite, so that the first stirring rod 34 and the second stirring rod 38 can be driven to rotate reversely, the first stirring rod 34 and the second stirring rod 38 which are arranged in a staggered manner can fully stir and crush fruits and vegetables in the relative movement process, the compaction degree of the juice squeezing process can be increased, the juice yield is effectively increased, the juice can overflow from the filtering holes 15 after the fruits and vegetables are squeezed, and enters the gap between the inner sleeve 13 and the outer sleeve 14, at the moment, the sampling valve 110 is opened, so that detection liquid can be received, after the detection test paper is soaked by the detection liquid, the pesticide residue of the fruits and vegetables can be effectively detected according to color reaction, during cleaning, the sampling valve 110 is closed, the regulating valve 112 is opened, tap water is externally connected to the guide pipe 111, and the lower pressing plate 35 and the upper pressing plate 31 are far away from each other, arrange material pipe 18 and will be connected with the stirring space, at this moment, stirring rod 34 and No. two stirring rod 38 are constantly stirred, and the running water is outwards recoil from the stirring space in addition, can self-cleaning inner skleeve 13 inside, and then arrange the residue in the inner skleeve 13 to the greatest extent, and after the residue was arranged to the greatest extent, lifter plate 24 resets, just can fill the next fruit vegetables.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An automatic detection processing method of fruit and vegetable residual pesticides is characterized by comprising the following steps: the detection method comprises the following steps:

the automatic detector used in S2 comprises a separation mechanism (1), a squeezing mechanism (2) and a stirring mechanism (3), wherein the squeezing mechanism (2) is installed on the separation mechanism (1), and the stirring mechanism (3) is installed in the middle of the squeezing mechanism (2); the separating mechanism (1) comprises a bottom plate (11), mounting holes (12), an inner sleeve (13), an outer sleeve (14), filtering holes (15), a vertical groove (16), a rotary pin (17), a discharge pipe (18), a sampling pipe (19), a sampling valve (110), a flow guide pipe (111), a regulating valve (112), a side plate (113) and a top plate (114), wherein the upper side of the bottom plate (11) is fixedly connected with the inner sleeve (13), the edge of the bottom plate (11) is provided with a plurality of mounting holes (12), the two sides of the lower end of the inner sleeve (13) are symmetrically provided with the vertical groove (16), the rotary pin (17) is embedded between the opposite inner walls of the vertical groove (16), the outer sleeve (14) is fixedly sleeved outside the middle part of the inner sleeve (13), the outer wall of the inner sleeve (13) is provided with a plurality of filtering holes (15), and the sampling pipe (19, install sampling valve (110) on sampling tube (19), the fixed honeycomb duct (111) that are equipped with of top outer wall of outer sleeve (14) of inlaying, install governing valve (112) on honeycomb duct (111), the top of inner sleeve (13) is equipped with roof (114), roof (114) and inner sleeve (13) fixedly connected with curb plate (113), the middle part screw fixation of curb plate (113) has bearing frame (115).

2. The automatic detection and processing method of the fruit and vegetable residual pesticide as claimed in claim 1, characterized in that: the squeezing mechanism (2) comprises a motor (21), a screw rod (22), a threaded sleeve (23), a lifting plate (24), a guide rod (25), an inclined rod (26), a seesaw (27), a sliding block (28), a sliding rail (29) and a sliding groove (210), wherein the motor (21) is fixed in the middle of the upper side of a top plate (114) through screws, an output shaft of the motor (21) penetrates through the top plate (114) and is fixedly connected with the screw rod (22), the bottom end of the screw rod (22) is rotatably connected with a bearing seat (115) through a bearing, the threaded sleeve (23) is sleeved on the outer side of the screw rod (22), the lifting plate (24) is fixedly sleeved on the outer side of the threaded sleeve (23), the guide rod (25) is fixedly connected with the lower side of the lifting plate (24), the two ends of the lifting plate (24) are respectively hinged with the inclined rod (26), and the bottom end of the inclined rod, two seesaw (27) rotate the cover respectively and establish the outside at commentaries on classics round pin (17), the top of seesaw (27) all articulates there is slider (28), the top of slider (28) all is equipped with slide rail (29), the downside of slide rail (29) all is equipped with spout (210), slider (28) all inlays and establishes in adjacent spout (210).

3. The automatic detection and processing method of the fruit and vegetable residual pesticide as claimed in claim 1, characterized in that: the stirring mechanism (3) comprises an upper pressing plate (31), a second motor (32), an upper rotary disc (33), a first stirring rod (34), a lower pressing plate (35), a third motor (36), a lower rotary disc (37), a second stirring rod (38), a first rubber sleeve (39) and a second rubber sleeve (310), wherein the upper pressing plate (31) and the lower pressing plate (35) are sleeved on the inner sleeve (13), the upper pressing plate (31) is fixedly connected with the bottom ends of the two guide rods (25), the lower pressing plate (35) is fixed on the upper sides of the two slide rails (29) through screws, the second motor (32) is fixed on the middle of the upper side of the upper pressing plate (31), the upper rotary disc (33) is fixedly connected with an output shaft of the second motor (32), the first stirring rods (34) are embedded in the equal distance of the lower side of the upper rotary disc (33), the third motor (36) is fixed on the middle of the lower side of the lower pressing plate (35), the output shaft of No. three motor (36) passes carousel (37) under holding down plate (35) fixedly connected with, the upside equidistance of holding down disk (37) inlays and establishes No. two puddler (38), the edge outside of top board (31) and holding down plate (35) all pastes and has No. two gum covers (310), the edge outside of going up carousel (33) and holding down disk (37) all pastes and has a gum cover (39).

4. The automatic detection and processing method of the fruit and vegetable residual pesticide as claimed in claim 1, characterized in that: the pipe diameter of the discharge pipe (18) is larger than 10 cm, and the filter holes (15) are arranged on the outer wall of the inner sleeve (13) at equal intervals.

5. The automatic detection and processing method of the fruit and vegetable residual pesticide as claimed in claim 1, characterized in that: the lifting plate (24) is connected with the side plate (113) in a sliding mode, and the threaded sleeve (23) is connected with the screw rod (22) in a threaded mode.

6. The automatic detection and processing method of the fruit and vegetable residual pesticide as claimed in claim 1, characterized in that: the section of the sliding groove (210) is of a T-shaped structure, and the structure of the sliding block (28) is matched with that of the sliding groove (210); a plurality of puddlers (34) and a plurality of No. two puddlers (38) set up at interval in proper order.