CN214503400U - Detection apparatus for packing carton batch number quality - Google Patents

Abstract

The utility model provides a detection apparatus for packing carton batch number quality relates to the packing carton and detects technical field. The detection device comprises a base, a conveying belt arranged on the base, a detection assembly arranged on the base and used for shooting the packaging boxes on the conveying belt and judging whether the batch numbers on the packaging boxes are qualified or not, a material rejecting assembly arranged on the base and positioned at the downstream of the conveying belt, and a movable shunting assembly arranged on the base and positioned at the upstream of the conveying belt. The control assembly is electrically connected with the detection assembly, the material rejecting assembly and the shunting assembly. The control assembly is used for controlling the air injection of the material rejecting assembly according to the signal of the detection assembly so as to reject the packaging boxes with unqualified batch number quality, and is used for controlling the flow dividing assembly to enable the packaging boxes to flow to a preset position. Whether the batch number quality of the packaging box is qualified or not is detected through the detection assembly, and the batch number quality identification speed is high. When the batch number is unqualified in quality, the packaging boxes are removed from the conveying belt through the air injection of the nozzles.

Description

Detection apparatus for packing carton batch number quality

Technical Field

The utility model relates to a packing carton detection area particularly, relates to a detection device of packing carton batch number quality.

Background

Along with the change of social requirements, the quality requirements of all packing boxes are more and more strict, enterprises can track the products produced by the enterprises, and the packing boxes of the products have important information such as production date, batch numbers, validity periods, serial codes and the like, so that the completeness and effectiveness of each packing box must be ensured. The existing code-giving batch number detection device has low efficiency and cannot meet the requirements of enterprises.

SUMMERY OF THE UTILITY MODEL

The utility model provides a detection apparatus for packing carton batch number quality aims at improving the problem that current packing carton batch number detection apparatus is inefficiency.

In order to solve the technical problem, the utility model provides a detection device of packing carton batch number quality, it contains base, conveying component, determine module, picks material subassembly, reposition of redundant personnel subassembly to and control assembly.

The conveying assembly comprises a conveying belt configured on the base.

The detection assembly comprises a camera arranged on the base. The detection assembly is used for shooting the packaging box on the conveying belt and judging whether the batch number on the packaging box is qualified or not.

The material rejecting assembly comprises a nozzle which is arranged on the base and is positioned at the downstream of the conveying belt, and an electromagnetic valve which is used for connecting the nozzle and an external air source.

The shunting assembly comprises a movable diversion piece which is arranged on the base and positioned on the upper stream of the conveying belt, and a first driving piece which is used for driving the diversion piece to switch between a first position and a second position. The second position is located above the conveying belt, and when the flow guide piece is located at the second position, the packing box can be guided to move along a preset direction.

The control assembly is electrically connected to the detection assembly, the solenoid valve and the first driving member. The control assembly is used for controlling the air injection of the material rejecting assembly according to the signal of the detection assembly so as to reject the packaging boxes with unqualified batch number quality, and is used for controlling the flow dividing assembly to enable the packaging boxes to flow to a preset position.

Optionally, the detection device further comprises a photoelectric switch. The photoelectric switch is arranged at the downstream of the conveying belt and used for detecting whether a packaging box is arranged at a preset position.

The detection assembly is arranged between the shunting assembly and the rejecting assembly. The photoelectric switch is arranged between the detection component and the rejecting component.

Optionally, the detection assembly further comprises a light source disposed beside the camera.

The camera is an area-array camera, and the light source is an annular light source. The annular light source is sleeved on the area-array camera.

The light source is 8-color LED light sources and is used for providing light rays with different colors according to the colors of the packaging box.

Optionally, the detection device further includes a first guide groove disposed on the base and disposed opposite to the nozzle, and a second guide groove disposed on the base and disposed opposite to the flow guide member. The first guide groove and the second guide groove are respectively used for guiding the packages leaving the conveying belt to flow to a preset position.

Optionally, the base is a power distribution control cabinet. The control assembly comprises an industrial personal computer and a power supply which are arranged in the power distribution control cabinet.

Optionally, the control assembly includes a control panel disposed on the base. The control panel is positioned substantially above the detection assembly.

The control assembly further comprises an alarm member disposed on the control panel.

Optionally, the first driving member is an air cylinder, and the flow guide member is a push rod.

The air cylinder drives the push rod to move along a preset direction so as to switch between a first position and a second position.

Optionally, the flow guide is a rod-like geometry. When the flow guide piece is positioned at the second position, the flow guide piece is inclined to the conveying direction of the conveying belt; the flow diversion assembly further comprises a plurality of cylinders configured at the bottom of the flow guide piece.

Optionally, the deflector is rotatably disposed on the base. The driving piece is a motor or a rotary cylinder and is used for driving the flow guide piece to rotate.

The cylinder is a roller, and the roller is rotatably arranged on the flow guide piece through a rotating shaft.

Optionally, the conveyor belt is disposed on the base at a preset angle in a width direction thereof. The flow guide piece is arranged in parallel with the conveying belt.

The preset angle is 5 to 30 degrees.

By adopting the technical scheme, the utility model discloses can gain following technological effect:

the embodiment of the utility model provides a whether qualified through the batch number quality that the determine module detected the packing carton, the recognition rate of batch number quality is fast. When the batch number is unqualified in quality, the packaging boxes are removed from the conveying belt through the air injection of the nozzles. The response speed of the electromagnetic valve is also high. Defective products on the conveying belt can be well removed. The production efficiency is greatly improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is an isometric view of a detection device in normal operation in accordance with an embodiment of the present invention;

fig. 2 is an isometric view of a detection device in a shunt state, in accordance with an embodiment of the present invention;

fig. 3 is an isometric view of a diverter assembly (with the first drive member hidden) according to an embodiment of the present invention.

The labels in the figure are: the device comprises a conveying belt 1, a shunt component 2, a light source 3, a camera 4, a control panel 5, a nozzle 6, a first guide groove 7, a second guide groove 8, a power distribution control cabinet 9, a photoelectric switch 10, a packaging box 11, a guide piece 12, a rotating shaft 13 and a roller 14.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The invention will be described in further detail with reference to the following detailed description and accompanying drawings:

as shown in fig. 1 to fig. 3, the present embodiment provides a device for detecting the lot number quality of a packing box 11, which comprises a base, a conveying assembly, a detecting assembly, a rejecting assembly, a shunting assembly 2, and a control assembly.

The conveying assembly comprises a conveying belt 1 arranged on a base. The conveyer belt 1 can circulate on the base to drive the object on the conveyer belt 1 to move along the direction of the conveyer belt 1. How specific conveyer belt 1 is installed on the base to and how drive 1 circulation activities of conveyer belt, for the conventional technical means in this field, the utility model discloses no longer describe herein.

The detection assembly includes a camera 4 disposed on the base. The detection component is used for shooting the packaging boxes 11 on the conveying belt 1 and judging whether the batch numbers on the packaging boxes 11 are qualified or not. The camera 4 is disposed on one side of the conveyor belt 1, and the shooting direction is parallel to the upper surface of the conveyor belt 1.

When the conveyer belt 1 drives the packing box 11 to pass in front of the camera 4, the camera 4 automatically takes a picture of the packing box 11. The photograph contains the lot number of the package 11. The detection component analyzes the photo, judges whether the character information on the packaging box 11 is accurate and error-free, whether the characters are printed or not and whether the printing positions have large offset at specific positions, and avoids that the characters are elongated or shortened seriously due to the conveying belt 1, and the generated character fuzzy information is unclear.

It will be appreciated that the detection component may have a separate image processing module for processing and determining if there is a problem with the character information on the photograph. Then, when there is a problem with the character information on the packing box 11, corresponding information is transmitted to the control unit. The steps of analyzing the photograph and determining if there is a problem with the character information on the photograph may also be performed by the control component.

Through the photo of taking packing carton 11 to judge from the photo whether qualified of the quality of the coding batch number on the packing carton 11, belong to prior art, the utility model discloses no longer describe herein.

The rejecting assembly comprises a nozzle 6 arranged on the base and positioned at the downstream of the conveyer belt 1, and a solenoid valve used for connecting the nozzle 6 and an external air source. The air is sprayed through the nozzle 6, and the packaging boxes 11 with unqualified code-giving batch numbers on the conveying belt 1 are blown away. The utility model discloses a detection device specially adapted pharmacy trade's various medicine boxes to and food industry's various small packing box 11, only need jet-propelled through nozzle 6, small packing box 11 just can take the thing in the packing box 11 to fly away from conveyer belt 1 together. Simple structure and low loss. And the efficiency and rejection quality are guaranteed.

The diversion assembly 2 includes a diversion member 12 movably disposed on the base and located upstream of the conveyor belt 1, and a first driving member for driving the diversion member 12 to switch between a first position and a second position. The second position is located above the conveyor 1 and guides the packages 11 in a predetermined direction when the deflector 12 is in the second position.

In this embodiment, the baffle 12 is switchable between a first position and a second position. When the baffle member 12 is in the second position. The packs 11 are moved along the conveyor 1 to the position of the deflector 12, and due to the effect of the deflector 12 they do not have to be moved along the conveyor 1, but along the deflector 12, so as to leave the conveyor 1 and enter a predetermined position.

A deflector 12 is provided upstream of the conveyor 1 to allow temporary storage in a predetermined position when it is not desired to continue the flow of packets 11 into the inspection device, thus relieving the pressure of the inspection device or the blockage downstream of the conveyor line.

The control assembly is electrically connected to the detection assembly, the solenoid valve and the first driving member. The control assembly is used for controlling the air injection of the material rejecting assembly according to the signal of the detection assembly so as to reject the packing boxes 11 with unqualified batch number quality, and is used for controlling the flow dividing assembly 2 to enable the packing boxes 11 to flow to a preset position.

In this embodiment, when detecting component detected that the coding lot number quality of packing carton 11 is unqualified, send first signal for control assembly, control assembly opens according to first signal control solenoid for 6 jet-propelled outside nozzles will be given the code lot number quality unqualified packing carton 11 and blow from conveyer belt 1 and fly away.

When the detection component detects that the packaging box 11 on the conveying belt 1 does not move (namely the packaging box 11 is always arranged in front of the camera 4, and under the normal condition, a certain gap is reserved between the packaging box 11 and the packaging box 11), the detection component judges that material blockage occurs on the detection device, so that a second signal is sent to the control component, the control component controls the first driving piece according to the second signal, and the flow guide piece 12 is driven to move to the second position. So that the package 11 does not continue to flow into the detection means (or into a subsequent step of the detection means).

The embodiment of the utility model provides a whether qualified through the batch number quality that detecting element detected packing carton 11, the recognition rate of batch number quality is fast. When the batch number is unqualified, the air is sprayed through the nozzle 6, and the packaging box 11 is removed from the conveying belt 1. The response speed of the electromagnetic valve is also high. Defective products on the conveyor belt 1 can be well removed. The production efficiency is greatly improved. Moreover, the packing box 11 is guided to a preset position to be stored by the guide device under the condition that the detection device is blocked, so that the working pressure of the detection device or the whole assembly line can be effectively relieved without stopping the machine, and the guide device has good practical significance.

On the basis of the above embodiments, in an optional embodiment of the present invention, the detecting device further includes a photoelectric switch 10. The photoelectric switch 10 is disposed downstream of the conveyor 1 for detecting whether a package 11 is present at a predetermined position. In the present embodiment, a photoelectric switch 10 is provided downstream of the conveyor belt 1. The packs 11 on the conveyor 1 are detected by the photoelectric switch 10. Each package 11 moving past the front of the opto-electronic switch 10 triggers the opto-electronic switch 10 once. When the time that a certain packing box 11 stays in front of the photoelectric switch 10 exceeds the preset time (namely the time for continuously triggering the photoelectric switch 10 exceeds the preset time), the situation that the material blockage occurs on the conveying belt 1 is judged, and the second signal is sent to the control assembly.

The detection of the packing boxes 11 by the photoelectric switch 10 can be performed even when the gap between the packing boxes 11 is small or the moving speed of the packing boxes 11 is fast. It can be more rapid and accurate than making a determination from a picture taken by the camera 4.

When the packing box 11 is piled up due to the equipment failure at the rear end of the detection device, the photoelectric switch 10 is blocked for a certain time, and the photoelectric switch 10 works to output a second signal to the control component. The control component receives the second signal and then controls the first driving component to drive the diversion component 12 to move to the second position so as to guide the packing box 11 to leave the conveying belt 1 and enter a preset position for temporary storage.

On the basis of the above embodiment, in an optional embodiment of the present invention, the detecting assembly is disposed between the shunting assembly 2 and the rejecting assembly. The photoelectric switch 10 is arranged between the detection component and the rejecting component. In particular, the nozzle 6 is disposed at a position away from the camera 4, which can provide a certain time for the detection means to recognize the content in the photograph. It does not happen that the package 11 has not yet been identified to have reached the front of the nozzle 6.

The opto-electronic switch 10 is arranged between the camera 4 and the nozzle 6 such that the opto-electronic switch 10 is at a distance from the downstream end of the conveyor belt 1. The portion of the opto-electronic switch 10 to the downstream end of the conveyor belt 1 is a buffer. The buffer area can store a certain amount of packing boxes 11 when equipment failure at the rear end of the detection device causes stacking, and the whole conveying belt 1 cannot be fully stacked at a time, so that the detection device has good practical significance.

On the basis of the above embodiments, in an optional embodiment of the present invention, the detecting component further includes a light source 3 disposed beside the camera 4. Specifically, the camera 4 is an area-array camera 4, and the light source 3 is a ring light source 3. The annular light source 3 is sleeved on the area-array camera 4. The annular light source 3 can evenly illuminate the packing box 11 along the circumference of the lens of the camera 4 to obtain better photographing quality, so that the speed of judging whether the batch number quality is qualified or not by the detection assembly is improved.

Preferably, the light source 3 is an 8-color LED light source 3 to provide different colors of light depending on the color of the package 11. Through the colour difference according to 11 surface colors of packing carton and 11 patterns of packing carton, provide ideal and effectual 3 colours of light source for camera 4, make camera 4 can shoot out the photo of running out clearly down to improve the speed that whether the check out test set judges batch number quality qualified.

On the basis of the above embodiment, in an optional embodiment of the present invention, the detecting device further includes a first guide slot 7 disposed on the base and opposite to the nozzle 6, and a second guide slot 8 disposed on the base and opposite to the diversion member 12. The first guide 7 and the second guide 8 are each adapted to guide the packages 11 leaving the conveyor 1 towards a predetermined position.

Specifically, the first guide groove 7 and the second guide groove 8 are both made of sheet metal and are formed by sheet metal machining. The plate member is configured into a structure having a C-shaped cross section by bending. When the packing box 11 leaves the conveying line, the packing box directly enters the first guide groove 7 and the second guide groove 8, and unqualified products and products to be detected are respectively guided to different places for storage.

Alternatively, the ends of the first guide groove 7 and the second guide groove 8 are respectively arranged in the receiving boxes, and the package 11 can slide and fall into the corresponding receiving box after entering the first guide groove or the second guide groove 8.

On the basis of the above embodiment, in an optional embodiment of the present invention, the base is a power distribution control cabinet 9. The control assembly comprises an industrial personal computer and a power supply which are arranged in the power distribution control cabinet 9. Specifically, the control assembly includes a control panel 5 disposed on the base. The control panel 5 is located substantially above the detection assembly. The control assembly further comprises an alarm member arranged on the control panel 5.

In this embodiment, an industrial personal computer and a power supply are disposed in the power distribution control cabinet 9, and the control panel 5 and the alarm are provided on the base. The operation of the machine station is more humanized. The warning member may be a warning light or a horn. The alarm is used for giving an alarm when the detection device is abnormal or is blocked.

On the basis of the above embodiment, in an optional embodiment of the present invention, the first driving member is an air cylinder, and the diversion member 12 is a push rod. The cylinder drives the push rod to move along a preset direction so as to switch between a first position and a second position. Specifically, the pusher is arranged parallel to the surface of the conveyor belt 1. The cylinder pushes the push rod to move, which can be perpendicular to the conveying direction of the conveying belt 1, and the push rod is used for directly pushing the packing box 11 down from the conveying belt 1. The pusher may also be disposed substantially obliquely to the conveying direction of the conveyor 1, and the packages 11 are separated from the conveyor 1 along the obliquely disposed pusher assembly during the process of advancing the packages 11 by the conveyor 1.

Alternatively, when the second position of the pusher is disposed along a direction substantially oblique to the conveying direction of the conveyor belt 1, the pusher may be movable in a rotational manner or in a linear manner. The corresponding cylinder may be a linear cylinder or a rotary cylinder.

As shown in fig. 2 and 3, in an alternative embodiment of the present invention, the flow guiding element 12 is a rod-shaped geometric body. When the diversion element 12 is located at the second position, it is inclined to the conveying direction of the conveyor belt 1. The flow diversion assembly 2 further comprises a plurality of cylinders disposed at the bottom of the flow guide 12.

In particular, the obliquely arranged flow guide 12 is provided at its bottom with a plurality of cylinders, the axis of which is perpendicular to the surface of the conveyor belt 1. By arranging a plurality of cylinders at the bottom of the diversion member 12, the contact area between the packaging box 11 and the diversion assembly 2 can be effectively reduced. So that the packages 11 can slide more smoothly along the diverting assembly 2 to be detached from the conveyor belt 1.

On the basis of the above embodiments, in an optional embodiment of the present invention, the diversion member 12 is rotatably disposed on the base. The driving member is a motor or a rotary cylinder, and is used for driving the diversion member 12 to rotate. Specifically, the cylinder is a roller 14, and the roller 14 is rotatably disposed on the diversion element 12 through a rotating shaft 13. The roller 14 is rotatably disposed at the bottom of the diversion member 12 through the rotating shaft 13, so that the resistance of the package 11 sliding along the diversion assembly 2 can be further reduced, and when the diversion member 12 is at the second position, the package 11 can slide along the diversion member 12 more smoothly, and then is separated from the conveyor belt 1 and enters the second guide groove 8.

On the basis of the above embodiment, in an optional embodiment of the present invention, the conveyer belt 1 is disposed on the base along the width direction thereof at a predetermined angle. The flow guide 12 is arranged parallel to the conveyor belt 1. Specifically, the preset angle is 5 to 30 degrees.

In the present embodiment, the conveyor belt 1 is disposed obliquely in its width direction, the nozzles 6 and the first guide grooves 7 are respectively disposed on both sides of the conveyor belt 1, and the second guide grooves 8 and the first guide grooves 7 are disposed on the same side of the conveyor belt 1. The side of the conveyor belt 1 provided with the first guide groove 7 and the second guide groove 8 is lower. So that the packages 11 have a tendency to tilt downwards on the conveyor 1. Utility model people reachs through many times of experiments, when conveyer belt 1 was in within thirty degrees at width direction's angle of inclination, packing carton 11 on the conveyer belt 1 can be stabilized on conveyer belt 1, and can not slide because of gravity reason. Therefore, when the conveyor belt 1 is set to an inclination angle within thirty degrees, it is possible to ensure that the package 11 can be moved to a subsequent machine along the conveyor belt 1 under normal conditions. Further, the packing box 11 can be more easily blown off from the conveyor 1 by the nozzle 6. The package 11 can be better guided into the second guide groove 8 through the diversion assembly 2, which has good practical significance.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a detection device of packing carton lot number quality which characterized in that contains:

a base;

a conveying assembly comprising a conveyor belt (1) arranged on the base;

a detection assembly comprising a camera (4) arranged at the base; the detection assembly is used for shooting the packaging boxes (11) on the conveying belt (1) and judging whether the batch numbers on the packaging boxes (11) are qualified or not;

the material rejecting assembly comprises a nozzle (6) which is arranged on the base and is positioned at the downstream of the conveying belt (1), and an electromagnetic valve which is used for connecting the nozzle (6) and an external air source;

the diversion assembly (2) comprises a diversion element (12) which is movably arranged on the base and is positioned at the upstream of the conveyer belt (1), and a first driving element which is used for driving the diversion element (12) to switch between a first position and a second position; the second position is located above the conveyor belt (1) and is capable of guiding the packages (11) to move in a predetermined direction when the deflector (12) is in the second position;

the control assembly is electrically connected with the detection assembly, the electromagnetic valve and the first driving piece; the control assembly is used for controlling the material rejecting assembly to eject the packing boxes (11) with unqualified batch number quality according to the signals of the detection assembly and controlling the flow dividing assembly (2) to enable the packing boxes (11) to flow to a preset position.

2. The detection device according to claim 1, characterized in that it further comprises a photoelectric switch (10); the photoelectric switch (10) is arranged at the downstream of the conveying belt (1) and used for detecting whether a packaging box (11) is arranged at a preset position or not;

the detection assembly is arranged between the shunting assembly (2) and the material rejecting assembly; the photoelectric switch (10) is arranged between the detection component and the rejecting component.

3. The detection device according to claim 1, characterized in that the detection assembly further comprises a light source (3) arranged beside the camera (4);

the camera (4) is an area-array camera, and the light source (3) is an annular light source; the annular light source is sleeved on the area-array camera;

the light source (3) is an 8-color LED light source and is used for providing light rays with different colors according to the color of the packing box (11).

4. The detection device according to claim 1, characterized in that it further comprises a first guide slot (7) arranged on said base and facing said nozzle (6), and a second guide slot (8) arranged on said base and facing said deflector (12); the first guide groove (7) and the second guide groove (8) are respectively used for guiding the packages (11) leaving the conveying belt (1) to flow to a preset position.

5. The detection device according to claim 1, characterized in that the base is a power distribution control cabinet (9); the control assembly comprises an industrial personal computer and a power supply which are arranged in the power distribution control cabinet (9).

6. The detection device according to claim 1, characterized in that said control assembly comprises a control panel (5) arranged on said base; the control panel (5) is positioned substantially above the detection assembly;

the control assembly further comprises an alarm member arranged on the control panel (5).

7. The detection device according to any one of claims 1 to 6, wherein the first drive member is a cylinder and the deflector (12) is a push rod;

the air cylinder drives the push rod to move along a preset direction so as to switch between a first position and a second position.

8. The detection device according to any one of claims 1 to 6, wherein the flow-guide element (12) is a rod-shaped geometric body; when the flow guide piece (12) is positioned at the second position, the flow guide piece is inclined to the conveying direction of the conveying belt (1);

the flow diversion assembly (2) further comprises a plurality of cylinders arranged at the bottom of the flow guide piece (12).

9. The detecting device according to claim 8, characterized in that the deflector (12) is rotatably arranged to the base; the driving piece is a motor or a rotary cylinder and is used for driving the flow guide piece (12) to rotate;

the cylinder is a roller (14), and the roller (14) is rotatably arranged on the flow guide piece (12) through a rotating shaft (13).

10. The detection device according to claim 1, characterized in that the conveyor belt (1) is arranged on the base at a preset angle in its width direction; the flow guide piece (12) is arranged in parallel with the conveying belt (1);

the preset angle is 5 to 30 degrees.

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