Pesticide residue screening device for food inspection and detection

Abstract

The invention discloses a pesticide residue screening device for food inspection and detection, and belongs to the technical field of food screening. The pesticide residue screening device for food inspection and detection comprises a screening box and further comprises a feeding groove, the feeding groove is formed in the top of the screening box, a feeding box is arranged at the top of the screening box, the feeding box is vertically connected to the top of the screening box and fixedly connected to the bottom of the feeding groove, and a vertically-arranged feeding channel is formed in the feeding box; a recognizer is horizontally embedded in the feeding channel, a placing plate is horizontally arranged in the screening box, a horizontally-arranged containing plate is arranged on the placing plate, the containing plate is perpendicular to the axis of the placing plate, a pressure sensor is arranged on the containing plate, inclined guide plates are fixedly connected to the opposite side faces of the placing plate correspondingly, and one ends of the guide plates penetrate through the screening box. A controller is arranged on the containing plate, the controller, the recognizer and the pressure sensor are electrically connected, and the fruit screening and separating device controls falling of fruits needing to be detected, and the fruits under different conditions are screened and separated after detection.

Description

Technical Field

[0001] The invention relates to the technical field of food screening, and in particular to a screening device for food inspection and detection of pesticide residues. Background Art

[0002] Food safety testing is to detect harmful substances in food according to national indicators. When testing food raw materials, freshly picked food is tested. Since some pesticides remain directly or indirectly in grains, fruits and vegetables after the application of pesticides in food production, pesticide residues need to be tested after the food is picked to prevent food with pesticide residues from reaching the human body through plant fruits. Fruit is a kind of food. Fruit refers to juicy and edible plant fruits with the main taste of sweetness and sourness, such as apples, peaches and other fruits, which can be made into juice or dried fruit.

[0003] When screening, the endpoint colorimetric method is usually used to make the surface color of food containing pesticide residues different from the color of normal food. By screening out foods of different colors, the effect of screening pesticide residues on food is achieved.

[0004] When the existing device is screening, the fruits that need to be screened and have been colored by the end point color development method are placed into the screening box for screening. The existing screening box does not control the falling of fruits, which will cause the fruits that need to be screened to be piled up densely. The recognition system is likely to identify two foods that are too similar as one, which is likely to cause inaccurate screening. Summary of the invention

[0005] The purpose of the present invention is to overcome the problems in the prior art and provide a food inspection and detection pesticide residue screening device to prevent fruit accumulation and improve the accuracy of screening.

[0006] The present invention provides a screening device for food inspection and detection of pesticide residues, comprising a screening box and a feed trough, wherein the feed trough is arranged on the top of the screening box, the top of the screening box is provided with a feed box, the feed box is vertically connected to the top of the screening box and fixedly connected to the bottom of the feed trough, a vertically arranged feed channel is opened in the feed box, an identifier is horizontally embedded in the feed channel, a placement plate is horizontally arranged in the screening box, the placement plate is arranged at the bottom of the feed box, a horizontally arranged holding plate is provided on the placement plate, the holding plate is perpendicular to the axis of the placement plate, an arc guide groove is provided in the feed box, the arc guide groove is communicated with the top of the feed channel, the arc guide groove is communicated with the feed port, a blocking member is provided at the connection between the arc guide groove and the feed channel, and the blocking member comprises a cylinder, the cylinder is fixedly embedded in the feed box, the output end of the cylinder is fixedly connected with the blocking plate, and the blocking plate is slidably embedded in the arc guide groove.

[0007] Preferably, the holding plate is arranged in an arc shape, and an inclined guide plate is fixedly connected to one opposite side of the placing plate, and one end of the guide plate passes through the screening box, and an arc-shaped material guide groove is provided on the guide plate. The holding plate is rotated at a certain angle to overlap the arc-shaped material guide groove, and a control member is provided at the bottom of the holding plate, and the control member is used to control the rotation of the holding plate and overlap the guide plate.

[0008] Preferably, the control component includes a pair of support plates, the pair of support plates are vertically fixedly connected to the placement plate, the holding plate is arranged between the pair of support plates, a motor is provided on one side of the support plate, and the motor output shaft rotates through any one of the support plates and is fixedly connected to a rotating rod, one end of the rotating rod is rotatably connected to the support plate, and a connecting sleeve is provided on the bottom fixed sleeve of the holding plate, and the connecting sleeve is fixedly mounted on the rotating rod.

[0009] Preferably, a controller is further provided, and a pressure sensor is provided on the placement plate. When the identifier identifies that the food dropped from the feed channel has pesticide residues, the controller controls the rotation direction of the motor. When the food drops onto the holding plate and presses the pressure sensor, the motor starts to drive the holding plate to rotate so that it overlaps the guide plate. When the identifier identifies that the food dropped from the feed channel has no pesticide residues, the controller rotates the motor in the opposite direction to the former so that the holding plate overlaps the guide plate on the other side.

[0010] Preferably, the top of the blocking plate is configured to be arc-shaped and is embedded with a flexible pad.

[0011] Preferably, a discharge port is obliquely opened on one opposite side of the screening box, the guide plate is arranged in the discharge port, and a collecting box is fixedly connected to the side of the guide plate away from the containing plate.

[0012] Preferably, an inclined guide platform is provided in the collection box, and the inclined guide platform has the same inclination direction as the guide plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the food inspection and detection pesticide residue screening device of the present invention controls the falling of fruits that need to be tested, and screens and separates fruits in different situations after testing. In the present invention, the user places the fruits that have been colored by the color development method in the feed trough, and the fruits enter the feed channel through the feed trough and the feed port. When the fruits fall, they pass through the identifier, and the identifier identifies the color of the fruits, so that the motor in the control part is controlled by the controller. When the fallen fruits fall onto the holding plate, they press the A pressure sensor is set, and the motor will rotate at this time. Under the action of the control component, the set holding plate will rotate and overlap on the guide plate, and fall into the collection box through the arc-shaped material guide groove provided on the guide plate for collection. In the present invention, the falling fruit is controlled by a limiter, and a certain frequency of falling is set. When the fruit on the holding plate leaves the holding plate, the motor will rotate it back to the original position. By controlling the falling of the fruit, and connecting the motor in the identifier, the controller and the control component, the identified fruit can be screened in real time. The use is convenient and fast, and the feasibility is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a schematic diagram of the internal structure of the screening box of the present invention.

[0016] Figure 3 It is a partial structural schematic diagram of the present invention.

[0017] Figure 4 It is a schematic diagram of the control component structure of the present invention.

[0018] Figure 5 It is a schematic diagram of the arc guide groove and the blocking member structure of the present invention.

[0019] Figure 6 It is a schematic diagram of the discharge port structure of the present invention.

[0020] Explanation of the accompanying drawings: 1. screening box; 2. feed trough; 3. feed box; 4. feed channel; 5. identifier; 6. placement plate; 7. holding plate; 8. pressure sensor; 9. guide plate; 10. controller; 11. arc-shaped guide trough; 12. control member; 121. support plate; 122. motor; 123. rotating rod; 124. connecting sleeve; 13. arc-shaped guide groove; 14. feed port; 15. blocking member; 151. cylinder; 152. blocking plate; 16. discharge port; 17. collecting box; 18. inclined guide table. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1 to Figure 6In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention. Unless otherwise defined, the technical terms or scientific terms used herein should be the usual meanings understood by people with general skills in the field to which the present invention belongs.

[0022] The words "first", "second" and similar words used in the patent application specification and claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, but do not exclude other elements or objects. "Inside", "outside", "upper", "lower", "far", "near", "front", "back" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. The drawings in the present invention are not drawn strictly according to the actual scale. The specific size and quantity of each structure can be determined according to actual needs. The drawings described in the present invention are only schematic diagrams of the structure.

[0023] The present invention provides a food inspection and detection pesticide residue screening device, such as Figure 1 to Figure 6 As shown, it includes a screening box 1 and a feed trough 2. The feed trough 2 is arranged on the top of the screening box 1. A feed box 3 is provided on the top of the screening box 1. The feed box 3 is vertically connected to the top of the screening box 1 and fixedly connected to the bottom of the feed trough 2. A vertically arranged feed channel 4 is opened in the feed box 3. An identifier 5 is horizontally embedded in the feed channel 4. A placement plate 6 is horizontally arranged in the screening box 1. The placement plate 6 is arranged at the bottom of the feed box 3. A horizontally arranged holding plate 7 is provided on the placement plate 6. The holding plate 7 is perpendicular to the axis of the placement plate 6. A pressure sensor 8 is provided on the holding plate 7. An inclined guide plate 9 is fixedly connected to one opposite side of the placement plate 6, and one end of the guide plate 9 passes through the screening box 1. A controller 10 is provided on the placement plate 6. The controller 10, the identifier 5 and the pressure sensor 8 are electrically connected. A control component 12 is provided at the bottom of the holding plate 7. The control component 12 is used to control the rotation of the holding plate 7 and overlap the guide plate 9.

[0024] The present invention controls the falling of fruits that need to be detected, and screens and separates fruits in different situations after detection. In the present invention, the user places the fruits that have been colored by the color development method into the feed trough 2, and the fruits enter the feed channel 4 through the feed trough 2 and the feed port 14. When the fruits fall, they pass through the identifier 5, and the identifier 5 identifies the color of the fruits, so that the motor 122 in the control part 12 is controlled by the controller 10. When the fallen fruits fall onto the holding plate 7, the pressure sensor 8 provided on the holding plate 7 is pressed, and the motor 122 rotates at this time. Under the action of the component 12, the set holding plate 7 will rotate and overlap on the guide plate 9, and fall into the collection box 17 through the arc-shaped guide groove 11 provided on the guide plate 9 for collection. In the present invention, the falling fruits are controlled by the limiter, and a certain frequency of falling is set. When the fruits on the holding plate 7 leave the holding plate 7, the motor 122 will rotate it back to the original position. By controlling the falling of the fruits, and electrically connecting the identifier 5, the controller 10 and the motor 122 in the control component 12, the identified fruits can be screened in real time. The use is convenient and fast, and the feasibility is strong.

[0025] Preferably, Figure 1 to Figure 4 As shown, the holding plate 7 is arranged in an arc shape, an arc-shaped material guiding groove 11 is provided on the guide plate 9, the holding plate 7 is rotated at a certain angle and overlapped on the arc-shaped material guiding groove 11, the control member 12 comprises a pair of support plates 121, a pair of support plates 121 are vertically fixedly connected to the placing plate 6, the holding plate 7 is arranged between the pair of support plates 121, a motor 122 is arranged on the support plate 121, the motor 122 is fixedly arranged on one side of the support plate 121 and the output shaft rotates through any one of the support plates 121 and is fixedly connected with a rotating rod 123, one end of the rotating rod 123 is rotatably connected with the support plate 121, a connecting sleeve 124 is fixedly connected to the bottom of the holding plate 7, and the connecting sleeve 124 is fixedly sleeved on the rotating rod 123, the identifier 5 identifies the color of the fruit to be detected, thereby controlling the rotation direction of the motor 122, and when the pressure sensor 8 is pressurized, the start and stop of the motor 122 is controlled by the controller 10.

[0026] In the present invention, the placing plate 7 is arranged in an arc shape, which is more convenient for the rolling of the fruit. The placing plate 6 supports a pair of supporting plates 121, the supporting plates 121 support the motor 122, the motor 122 supports the rotating rod 123, and the connecting sleeve 124 is fixedly sleeved on the rotating rod 123. When the identifier 5 identifies the fallen fruit, the motor 122 is given a rotation direction. For example, when it is identified that the fruit has excessive pesticides, the motor 122 can rotate counterclockwise, and if the fruit has not excessive pesticides, the motor 122 rotates clockwise; or when it is identified that the fruit has excessive pesticides, the motor 122 can rotate clockwise, and if the fruit has not excessive pesticides, the motor 122 rotates counterclockwise. Both are possible, and the start of the motor 122 is controlled by the pressure sensor 8 and the controller 10. When the fruit falls onto the holding plate 7, the pressure sensor 8 will be pressed. At this time, the pressure sensor 8 will be pressed and the controller 10 will control the motor 122 to rotate. When the motor 122 rotates, it will drive the rotating rod 123 to rotate, so that the holding plate 7 is rotated together through the connecting sleeve 124, and the holding plate 7 is overlapped on the guide plate 9 and connected with the arc-shaped material guide groove 11. At this time, the fruit will roll from the holding plate 7 to the arc-shaped material guide groove 11, and then roll into the collection box 17 for collection, so as to separate and screen the fruits with excessive pesticides and those that meet the requirements.

[0027] Preferably, Figure 2 to Figure 5 As shown, an arc-shaped guide groove 13 is provided in the feed box 3, and the arc-shaped guide groove 13 is connected with the top of the feed channel 4. A feed port 14 is provided on the feed trough 2, and the arc-shaped guide groove 13 is connected with the feed port 14. A blocking member 15 is provided at the connection between the arc-shaped guide groove 13 and the feed channel 4; the blocking member 15 includes a cylinder 151, and the cylinder 151 is fixedly embedded in the feed box 3. A blocking plate 152 is fixedly connected to the output end of the cylinder 151, and the blocking plate 152 is slidably embedded in the arc-shaped guide groove 13. The top of the blocking plate 152 is set to be arc-shaped, and a flexible pad is embedded.

[0028] An arc-shaped guide groove 13 is provided in the feed box 3. The fruit to be inspected enters the arc-shaped guide groove 13 through the feed port 14. At this time, the cylinder 151 pushes out the blocking plate 152 to block the fruit, and the cylinder 151 is externally connected to a control system. The interval time can be set according to demand to control the pulling and pushing of the blocking plate 152. Only one fruit is allowed to fall into the feed channel 4 at a time. The top of the blocking plate 152 is set to an arc shape, and a flexible pad is set to prevent the top of the blocking plate 152 from damaging the fruit to be identified and screened.

[0029] Preferably, Figure 1 to Figure 6As shown, a discharge port 16 is obliquely opened on one opposite side of the screening box 1, a guide plate 9 is arranged in the discharge port 16, a collecting box 17 is fixedly connected to the side of the guide plate 9 away from the containing plate 7, an inclined guide platform is arranged in the collecting box 17, and the inclined guide platform and the guide plate 9 are inclined in the same direction.

[0030] In the present invention, a discharge port 16 is provided on the screening box 1, a guide plate 9 is provided in the discharge port 16, and an inclined guide platform is provided in the collection box 17. When the screened fruits roll from the arc-shaped guide trough 11 to the collection box 17 for collection, the fruits can be guided by the inclined guide platform to prevent them from falling directly into the collection box 17 and causing damage to the surface of the fruits due to collisions between them. In the present invention, a plurality of groups of feed channels 4 are provided on the feed box 3, each feed channel 4 is independently provided, and the identifier 5, the control member 12, and the blocking member 15 in each group do not interfere with each other, so that a plurality of fruits can be detected, separated, and screened at one time, thereby improving the separation efficiency.

[0031] The method of using the food inspection and detection pesticide residue screening device of the present invention is as follows:

[0032] The user places the fruit that has been colored by the color development method into the feed chute 2. At this time, the fruit falls into the arc guide groove 13 and is blocked by the blocking plate 152. At this time, the machine is turned on to pull the cylinder 151 back. At this time, the blocking plate 152 moves to make the fruit fall. The cylinder 151 quickly extends and blocks the next fruit through the blocking plate 152. The fruit falls into the feed channel 4 through the arc guide groove 13.

[0033] When the fruit falls, it passes through the identifier 5, which identifies the color of the fruit and transmits the signal to the controller 10. The controller 10 controls the motor 122. When it is identified that the fruit has excessive pesticides, the motor 122 can rotate counterclockwise, and if the fruit has not exceeded the pesticide standard, the motor 122 rotates clockwise; or when it is identified that the fruit has excessive pesticides, the motor 122 can rotate clockwise, and if the fruit has not exceeded the pesticide standard, the motor 122 rotates counterclockwise. Both are possible, and the start of the motor 122 is controlled by the pressure sensor 8 and the controller 10. When the fruit falls onto the holding plate 7, the pressure sensor 8 is pressed. At this time, the pressure sensor 8 is pressed and the motor 122 is controlled to rotate by the controller 10. When the motor 122 rotates, the rotating rod 123 is driven to rotate, so that the holding plate 7 is rotated together through the connecting sleeve 124, and the holding plate 7 is overlapped on the guide plate 9.

[0034] When the selected fruits roll from the arc-shaped guide trough 11 to the collection box 17 for collection, the inclined guide platform can guide the fruits to prevent them from falling directly into the collection box 17 and causing damage to the surface of the fruits due to collisions between them.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A food inspection and detection pesticide residue screening device, comprising a screening box (1), characterized in that: Also includes: A feed trough (2) is arranged on the top of the screening box (1), and a feed port (14) is provided on the feed trough (2); A feed box (3) is vertically connected to the top of the screening box (1) and fixedly connected to the bottom of the feed trough (2); a vertically arranged feed channel (4) is provided in the feed box (3); An identifier (5) is horizontally embedded in the feed channel (4); A placement plate (6) is horizontally arranged in the screening box (1), and the placement plate (6) is arranged at the bottom of the feed box (3); A holding plate (7) is horizontally arranged on the placement plate (6), and the holding plate (7) is perpendicular to the axis of the placement plate (6); An arc-shaped guide groove (13) is arranged in the feed box (3), the arc-shaped guide groove (13) is connected to the top of the feed channel (4), and the arc-shaped guide groove (13) is connected to the feed port (14); A blocking member (15) is arranged at the connection point between the arc-shaped guide groove (13) and the feed channel (4), and the blocking member (15) comprises a cylinder (151), and the cylinder (151) is fixedly embedded in the feed box (3), and the output end of the cylinder (151) is fixedly connected to a blocking plate (152), and the blocking plate (152) is slidably embedded in the arc-shaped guide groove (13).

2. A food inspection and detection pesticide residue screening device as claimed in claim 1, characterized in that: The containing plate (7) is arranged in an arc shape, and an inclined guide plate (9) is fixedly connected to one opposite side surface of the placing plate (6), and one end of the guide plate (9) passes through the screening box (1). An arc-shaped material guide groove (11) is provided on the guide plate (9), and the containing plate (7) is rotated at a certain angle to overlap the arc-shaped material guide groove (11). A control member (12) is provided at the bottom of the containing plate (7), and the control member (12) is used to control the containing plate (7) to rotate and overlap the guide plate (9).

3. A food inspection and detection pesticide residue screening device as claimed in claim 2, characterized in that: The control component (12) comprises a pair of support plates (121), wherein the pair of support plates (121) are vertically fixedly connected to the placement plate (6), and the holding plate (7) is arranged between the pair of support plates (121); a motor (122), which is fixedly arranged on one side of the support plates (121) and has an output shaft that rotates through any one of the support plates (121) and is fixedly connected to a rotating rod (123), wherein one end of the rotating rod (123) is rotatably connected to the support plate (121); and a connecting sleeve (124), which is fixedly connected to the bottom of the holding plate (7), and the connecting sleeve (124) is fixedly sleeved on the rotating rod (123).

4. A food inspection and detection pesticide residue screening device as claimed in claim 3, characterized in that: A controller (10) is also provided. A pressure sensor (8) is provided on the placement plate (6). When the identifier (5) identifies that the food dropped from the feed channel (4) has pesticide residues, the controller (10) controls the rotation direction of the motor (122). When the food drops onto the receiving plate (7) and presses the pressure sensor (8), the motor (122) starts to drive the receiving plate (7) to rotate so that it overlaps the guide plate (9). When the identifier (5) identifies that the food dropped from the feed channel (4) has no pesticide residues, the controller (10) rotates the motor (122) in the opposite direction to the former so that the receiving plate (7) overlaps the guide plate (9) on the other side.

5. A food inspection and detection pesticide residue screening device as claimed in claim 1, characterized in that: The top end of the blocking plate (152) is arranged in an arc shape and is embedded with a flexible pad.

6. A food inspection and detection pesticide residue screening device as claimed in claim 1, characterized in that: The screening box (1) has an inclined discharge port (16) on one opposite side, the guide plate (9) is arranged in the discharge port (16), and a collecting box (17) is fixedly connected to the side of the guide plate (9) away from the containing plate (7).

7. A food inspection and detection pesticide residue screening device as claimed in claim 6, characterized in that: An inclined guide platform (18) is arranged in the collection box (17), and the inclined guide platform (18) and the guide plate (9) have the same inclination direction.

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