A lunch box inspection machine

Abstract

The invention discloses a lunch box inspection machine, comprising a front detection mechanism, an edge wrinkle detection mechanism, an appearance detection mechanism, an inner wall detection mechanism, a light transmission detection mechanism, a back detection mechanism and a conveying mechanism, all of which use optical imaging for detection; the front detection mechanism is used to detect the dirtiness of the front of the lunch box, the edge wrinkle detection mechanism is used to detect the dirtiness of the edge wrinkle surface of the lunch box, the appearance detection mechanism is used to detect the outer dimensions of the lunch box, the inner wall detection mechanism is used to detect the dirtiness of the inner wall of the lunch box, the light transmission detection mechanism is used to detect the light transmission of the lunch box, the back detection mechanism is used to detect the dirtiness of the back of the lunch box, and the conveying mechanism is used to convey the lunch box to the corresponding detection positions in the front detection mechanism, the edge wrinkle detection mechanism, the appearance detection mechanism and the inner wall detection mechanism. The beneficial effects brought by the invention are: it can automatically complete various detections of the lunch box, and effectively improve the detection efficiency and detection accuracy.

Description

Technical Field

[0001] The invention belongs to the technical field of product testing equipment, and in particular relates to a lunch box testing machine. Background Art

[0002] As people's living standards improve, they are more and more demanding on food containers. Lunch boxes are one of the most common food containers, and the quality of lunch boxes will directly determine people's acceptance. Therefore, lunch boxes must be effectively tested before leaving the factory to prevent unqualified lunch boxes from entering the market and affecting food hygiene and safety.

[0003] The lunch box inspection work in the prior art mainly relies on manual inspection, which has low work efficiency and high error rate, restricting the mass production of lunch boxes. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a lunch box inspection machine that can automatically complete various inspections of the lunch box and effectively improve the inspection efficiency and inspection accuracy.

[0005] The present invention is implemented as follows: a lunch box inspection machine includes a front inspection mechanism, an edge wrinkle inspection mechanism, an appearance inspection mechanism, an inner wall inspection mechanism, a light transmission inspection mechanism, a back inspection mechanism and a conveying mechanism, all of which use optical imaging for inspection;

[0006] The front detection mechanism is used to detect the dirtiness of the front of the lunch box.

[0007] The edge wrinkle detection mechanism is used to detect the dirtiness of the edge wrinkle surface of the lunch box.

[0008] The shape detection mechanism is used to detect the shape and size of the lunch box.

[0009] The inner wall detection mechanism is used to detect the dirtiness of the inner wall of the lunch box.

[0010] The light transmission detection mechanism is used to detect the light transmission condition of the lunch box.

[0011] The back detection mechanism is used to detect the dirtiness of the back of the lunch box.

[0012] The conveying mechanism is used to convey the lunch box to corresponding detection positions in the front detection mechanism, the edge wrinkle detection mechanism, the shape detection mechanism and the inner wall detection mechanism.

[0013] Furthermore, the front detection mechanism includes a spherical cover light source, an area array camera 1 and a bracket 1, and the spherical cover light source and the area array camera 1 are both arranged on the bracket 1 facing downward;

[0014] The edge wrinkle detection mechanism comprises a surface light source I, a surface array camera II and a bracket II, wherein the surface light source I and the surface array camera II are both arranged on the bracket II facing downward;

[0015] The shape detection mechanism comprises a surface light source II, an array camera III and a bracket III, wherein the surface light source II and the array camera III are both arranged on the bracket II facing downward;

[0016] The conveying mechanism includes a lower suction conveyor belt I, a lower suction conveyor belt II and a lower suction conveyor belt III which can suck the bottom of the lunch box to achieve the purpose of conveying; the lower suction conveyor belt I is used to convey the lunch box to the detection position in the front detection mechanism, the lower suction conveyor belt II is used to convey the lunch box to the detection positions in the edge wrinkle detection mechanism and the shape detection mechanism, and the lower suction conveyor belt I is used to convey the lunch box to the detection position in the inner wall detection mechanism.

[0017] Furthermore, the area array camera I is arranged at the center of the ball cover light source, the area array camera II is arranged at the center of the surface light source I, and the area array camera III is arranged at the center of the surface light source II.

[0018] Furthermore, the bracket I, bracket II and bracket III are all fixed on the frame I, and the frame I is also provided with lifting plates I and II, and the fixed plates I and II are both fixed on the frame II; the lifting plate I is liftably arranged below the fixed plate I through the lifting mechanism I, and the lifting plate II is liftably arranged below the fixed plate II through the lifting mechanism II; the fixed plate I or the fixed plate II is also fixed with a driving device I capable of driving the lifting mechanism I and the lifting mechanism II.

[0019] Furthermore, the inner wall detection mechanism includes an area array camera IV, an area array camera V, a surface light source III, a surface light source IV and a rack III; the area array camera IV, the area array camera V, the surface light source III and the surface light source IV are all arranged on the rack III; the number of the area array camera IV and the area array camera V is two each, the area array camera IV is used to detect the front and back sides of the inner wall of the lunch box, and the area array camera V is used to detect the left and right sides of the inner wall of the lunch box.

[0020] Furthermore, the frame III is fixed on the lifting plate III, and the lifting plate III is liftably arranged below the fixed plate III through the lifting mechanism III. The fixed plate III is fixed on the frame IV, and a driving device II capable of driving the lifting mechanism III is also fixed thereon.

[0021] Furthermore, the light transmission detection mechanism includes a linear array camera and a linear light source;

[0022] The back detection mechanism includes a polygonal or annular light source, an area array camera VI, an upper suction conveyor belt and a frame V; the bottom surface of the upper suction conveyor belt can suck the top of the lunch box; the line array camera, line light source, polygonal or annular light source, area array camera VI and upper suction conveyor belt are all fixed on the frame V.

[0023] Furthermore, the frame V is fixed on a lifting plate IV, and the lifting plate IV is liftably arranged below the fixed plate IV through a lifting mechanism IV, and a driving device III capable of driving the lifting mechanism IV is fixed on the fixed plate IV.

[0024] Furthermore, it also includes a loading mechanism and a unloading mechanism, the loading mechanism includes a conveyor belt I and a smooth strip I arranged on both sides of the conveyor belt I; the unloading mechanism includes a conveyor belt II and a smooth strip II arranged on both sides of the conveyor belt II.

[0025] Furthermore, a waste discharge channel and a repairable product discharge channel are sequentially provided on one side of the conveyor belt II along the moving direction of the lunch box, and an air blowing nozzle I opposite to the waste discharge channel and an air blowing nozzle II opposite to the repairable product discharge channel are sequentially provided on the other side along the moving direction of the lunch box.

[0026] The beneficial effects brought by the present invention are: various detections of lunch boxes can be automatically completed, and the detection efficiency and detection accuracy can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural stereogram of the lunch box inspection machine of the present invention;

[0028] Figure 2 It is a top view of the structure of the lunch box inspection machine of the present invention;

[0029] Figure 3 yes Figure 1 The structural stereogram of the feeding mechanism in the lunch box inspection machine shown;

[0030] Figure 4 yes Figure 1 The structural stereogram of the front detection mechanism, edge wrinkle detection mechanism and shape detection mechanism in the lunch box inspection machine shown;

[0031] Figure 5 yes Figure 1 A structural stereogram of the inner wall detection mechanism in the lunch box inspection machine shown;

[0032] Figure 6 yes Figure 1 The structural stereogram of the conveying mechanism in the lunch box inspection machine shown;

[0033] Figure 7 yes Figure 1A structural stereogram of a light transmission detection mechanism and a back detection mechanism in the lunch box inspection machine shown;

[0034] Figure 8 yes Figure 1 The structural side view of the light transmission detection mechanism and the back detection mechanism in the lunch box inspection machine shown;

[0035] Fig. 9 yes Figure 1 A structural stereogram of a light transmission detection mechanism and a back detection mechanism in the lunch box inspection machine shown;

[0036] Fig.10 yes Figure 1 The structural stereogram of the feeding mechanism in the lunch box inspection machine is shown. DETAILED DESCRIPTION

[0037] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0038] like Figure 1 and 2 As shown, a lunch box inspection machine includes a feeding mechanism 100, a front detection mechanism 200, an edge wrinkle detection mechanism 300, an appearance detection mechanism 400, an inner wall detection mechanism 500, a light transmission detection mechanism 600, a back detection mechanism 700, a conveying mechanism 900 and a unloading mechanism 800.

[0039] The front detection mechanism 200, the edge wrinkle detection mechanism 300, the shape detection mechanism 400, the inner wall detection mechanism 500, the light transmission detection mechanism 600 and the back detection mechanism 700 are sequentially arranged along the moving direction of the lunch box. All the detection mechanisms adopt optical detection, use a camera to take images of different parts of the lunch box 1, and use the existing image analysis detection module to perform detection to obtain the detection result. The detection method is a prior art, so it is not repeated.

[0040] like Figure 3 As shown, the feeding mechanism 100 is used to convey the lunch box to the front detection mechanism 200, which includes a conveyor belt frame 103, a conveyor belt I101 and smooth strips I102 arranged on both sides of the conveyor belt I101. The conveyor belt I101 is fixed on the conveyor belt frame 103. The conveyor belt I101 has power to continuously convey the lunch box 1. The end of the conveyor belt I101 is provided with a transition roller 104. The smooth strip I102 has a corrective effect. The two smooth strips I102 are arranged face to face so that the lunch box 1 can enter the front detection mechanism 200 in the same posture.

[0041] like Figure 4As shown, the front detection mechanism 200 is used to detect the dirtiness of the front of the lunch box. The front detection mechanism 200 includes a spherical cover light source 201, an array camera 1202 and a bracket 1203. The spherical cover light source 201 and the array camera 1202 are both arranged face-down on the bracket 1203. The array camera 1202 is arranged in the center of the spherical cover light source 201.

[0042] The edge wrinkle detection mechanism 300 is used to detect the dirtiness of the edge wrinkle surface of the lunch box, and the edge wrinkle detection mechanism 300 includes a surface light source I301, a surface array camera II302 and a bracket II304. The surface light source I301 and the surface array camera II302 are both arranged facing downward on the bracket II304. The surface array camera II302 is arranged in the center of the surface light source I301.

[0043] The shape detection mechanism 400 is used to detect the shape dimensions of the lunch box, and includes a surface light source II401, a surface array camera III402, and a bracket III404. The surface light source II401 and the surface array camera III402 are both arranged facing downward on the bracket II304. The surface array camera III402 is arranged in the center of the surface light source II401.

[0044] In one embodiment, in order to meet the detection requirements of lunch boxes 1 of different sizes, the light source and the camera can be raised and lowered. Specifically, the bracket I203, the bracket II304 and the bracket III404 are all fixed on the frame I1000, and the frame I1000 is also provided with lifting plates I, II1002 and 1009, and the fixed plates I, II1003 and 1008 are all fixed on the frame II1001; the lifting plate I1002 is lifted and lowered below the fixed plate I1003 through the lifting mechanism I1005, and the lifting plate II1009 is lifted and lowered below the fixed plate II1008 through the lifting mechanism II1007; the fixed plate I1003 or the fixed plate II1008 is also fixed with a driving device I1004 capable of driving the lifting mechanism I1005 and the lifting mechanism II1007. The driving device I1004 is a stepping motor, which drives the lifting mechanism I1005 and the lifting mechanism II1007 to run synchronously through the belt mechanism 1006. The lifting mechanism I1005 and the lifting mechanism II1007 are both lead screw structures, in which the lead screws realize the lifting and lowering adjustment of the corresponding components under the drive of the belt mechanism.

[0045] like Figure 6 As shown, the conveying mechanism 900 is used to convey the lunch box to corresponding detection positions in the front detection mechanism 200, the edge wrinkle detection mechanism 300, the shape detection mechanism 400 and the inner wall detection mechanism 500 respectively.

[0046] The conveying mechanism 900 includes a lower suction conveyor belt I901, a lower suction conveyor belt II904 and a lower suction conveyor belt III906 that can suck the bottom of the lunch box to achieve the purpose of conveying. The lower suction conveyor belt I901 is used to convey the lunch box to the detection position in the front detection mechanism 200, and a lower suction box I902 with suction holes distributed on the top surface is provided below its upper belt surface. The lower suction conveyor belt II904 is used to convey the lunch box to the detection position in the edge wrinkle detection mechanism 300 and the shape detection mechanism 400, and a lower suction box II905 with suction holes distributed on the top surface is provided below its upper belt surface. The lower suction conveyor belt I901 is used to convey the lunch box to the detection position in the inner wall detection mechanism 500, and a lower suction box III907 with suction holes distributed on the top surface is provided below its upper belt surface. The belt surfaces of the lower suction conveyor belt I901, the lower suction conveyor belt II904 and the lower suction conveyor belt III906 are all distributed with suction holes to suck the bottom of the lunch box 1. The three conveyor belts are connected by a belt transmission mechanism 903 to synchronously convey the lunch box 1.

[0047] like Figure 5 As shown, the inner wall detection mechanism 500 is used to detect the dirtiness of the inner wall of the lunch box, and the inner wall detection mechanism 500 includes an area array camera IV503, an area array camera V504, a surface light source III508, a surface light source IV509 and a rack III507; the area array camera IV503, the area array camera V504, the surface light source III508 and the surface light source IV509 are all arranged on the rack III507; the number of the area array camera IV503 and the number of the area array camera V504 are two each, and the two area array cameras IV503 are arranged at a certain angle front and back to detect the front and back sides of the inner wall of the lunch box; the two area array cameras V504 are arranged at a certain angle left and right to detect the left and right sides of the inner wall of the lunch box.

[0048] Similarly, in order to meet the detection requirements of lunch boxes of different sizes, the light source and the camera are also set to be adjustable. Specifically, the frame III507 is fixed on the lifting plate III506, and the lifting plate III506 is lifted and lowered below the fixed plate III502 through the lifting mechanism III510. The fixed plate III502 is fixed on the frame IV501, and a driving device II505 capable of driving the lifting mechanism III510 is also fixed thereon. The driving device II505 drives the lifting mechanism III501 through a belt mechanism, and the lifting mechanism III510 is also a screw mechanism, in which the screw realizes the lifting and lowering adjustment of the corresponding components under the drive of the belt mechanism.

[0049] like Figures 7 to 9 As shown, the light transmission detection mechanism 600 is used to detect the light transmission condition of the lunch box, and the light transmission detection mechanism 600 includes a line array camera 601 and a line light source 602.

[0050] The back detection mechanism 700 is used to detect the dirt condition of the back of the lunch box. The back detection mechanism 700 includes a polygonal or annular light source 706, an area array camera VI707, an upper suction conveyor belt 701 and a frame V709.

[0051] An upper suction box 702 with suction holes distributed on the bottom is provided above the lower belt surface of the upper suction conveyor belt 701. The belt surface is provided with suction holes so that the top of the lunch box is sucked under the negative pressure provided by the upper suction box 702.

[0052] The line array camera 601, the line light source 602, the polygonal or annular light source 706, the area array camera VI707 and the upper suction conveyor belt 701 are all fixed on the rack V709. The polygonal or annular light source 706 is located below the area array camera VI707 as much as possible. Similarly, the rack V709 is fixed on the lifting plate IV703, and the lifting plate IV703 is lifted and lowered below the fixed plate IV708 through the lifting mechanism IV710. The fixed plate IV708 is fixed with a driving device III704 capable of driving the lifting mechanism IV710. The driving device III704 is a stepping motor, which drives the lifting mechanism IV710 to operate through a belt mechanism. The lifting mechanism IV710 is also a screw mechanism, in which the screw realizes the lifting and lowering adjustment of the corresponding components under the drive of the belt mechanism.

[0053] It should be noted that when the lunch box 1 passes through the lower suction conveyor and reaches the connection point of the upper suction conveyor, the linear array camera 601 cooperates with the brighter linear light source 602 to collect the lunch box image for light transmission detection.

[0054] like Fig.10 As shown, the unloading mechanism 800 is used to receive the lunch box output by the back detection mechanism 700 and convey it to a designated position, and includes a conveyor belt II805 and smooth strips II806 arranged on both sides of the conveyor belt II805.

[0055] In one embodiment, the lunch box 1 can be divided into three categories after a series of tests: qualified products, waste products and repairable products. The lunch box 1 is classified according to the three test results and enters the corresponding channel. Therefore, one side of the conveyor belt II805 is provided with a waste product discharge channel 801 and a repairable product discharge channel 802 in sequence along the moving direction of the lunch box, and the other side thereof is provided with a blowing nozzle I804 opposite to the waste product discharge channel 801 and a blowing nozzle II803 opposite to the repairable product discharge channel 802 in sequence along the moving direction of the lunch box. Qualified products are transported by the conveyor belt II805 until they reach the end and enter the packaging link, while waste products fall into the waste product discharge channel 801 under the action of the airflow blown by the blowing nozzle I804 for unified collection and treatment, and repairable products fall into the repairable product discharge channel 802 under the action of the airflow blown by the blowing nozzle II803 for unified collection and repair.

[0056] It should be noted that the invention of the present invention lies in the design of the overall structure, not in the improvement of specific detection principles and methods. Also, since the detection principles and methods are existing technologies, they will not be elaborated on.

[0057] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A lunch box inspection machine, characterized in that: It comprises a front detection mechanism (200), an edge wrinkle detection mechanism (300), an appearance detection mechanism (400), an inner wall detection mechanism (500), a light transmission detection mechanism (600), a back detection mechanism (700) and a conveying mechanism (900), all of which utilize optical imaging for detection; The front detection mechanism (200) is used to detect the dirtiness of the front of the lunch box. The edge wrinkle detection mechanism (300) is used to detect the dirtiness of the edge wrinkle surface of the lunch box. The shape detection mechanism (400) is used to detect the shape dimensions of the lunch box. The inner wall detection mechanism (500) is used to detect the dirtiness of the inner wall of the lunch box. The light transmission detection mechanism (600) is used to detect the light transmission condition of the lunch box. The back detection mechanism (700) is used to detect the dirtiness of the back of the lunch box. The conveying mechanism (900) is used to convey the lunch box to corresponding detection positions in the front detection mechanism (200), the edge wrinkle detection mechanism (300), the shape detection mechanism (400) and the inner wall detection mechanism (500); The front detection mechanism (200) comprises a spherical cover light source (201), an area array camera I (202) and a bracket I (203), wherein the spherical cover light source (201) and the area array camera I (202) are both arranged on the bracket I (203) facing downward; The edge wrinkle detection mechanism (300) comprises a surface light source I (301), a surface array camera II (302) and a bracket II (304); the surface light source I (301) and the surface array camera II (302) are both arranged on the bracket II (304) facing downwards; The shape detection mechanism (400) comprises a surface light source II (401), an array camera III (402) and a bracket III (404), wherein the surface light source II (401) and the array camera III (402) are both arranged on the bracket II (304) facing downwards; The conveying mechanism (900) comprises a lower suction conveyor belt I (901), a lower suction conveyor belt II (904) and a lower suction conveyor belt III (906) which are capable of sucking the bottom of the lunch box to achieve the purpose of conveying; the lower suction conveyor belt I (901) is used to convey the lunch box to the detection position in the front detection mechanism (200), the lower suction conveyor belt II (904) is used to convey the lunch box to the detection positions in the edge wrinkle detection mechanism (300) and the shape detection mechanism (400), and the lower suction conveyor belt I (901) is used to convey the lunch box to the detection position in the inner wall detection mechanism (500); The inner wall detection mechanism (500) comprises an array camera IV (503), an array camera V (504), a surface light source III (508), a surface light source IV (509) and a frame III (507); the array camera IV (503), the array camera V (504), the surface light source III (508) and the surface light source IV (509) are all arranged on the frame III (507); the number of the array camera IV (503) and the array camera V (504) is two, the array camera IV (503) is used to detect the front and back sides of the inner wall of the lunch box, and the array camera V (504) is used to detect the left and right sides of the inner wall of the lunch box; The light transmission detection mechanism (600) comprises a linear array camera (601) and a linear light source (602); The back detection mechanism (700) comprises a polygonal or annular light source (706), an area array camera VI (707), an upper suction conveyor belt (701) and a frame V (709); the bottom surface of the upper suction conveyor belt (701) is capable of sucking the top of the lunch box; the line array camera (601), the line light source (602), the polygonal or annular light source (706), the area array camera VI (707) and the upper suction conveyor belt (701) are all fixedly arranged on the frame V (709).

2. A lunch box inspection machine according to claim 1, characterized in that: The area array camera I (202) is arranged at the center of the spherical cover light source (201), the area array camera II (302) is arranged at the center of the surface light source I (301), and the area array camera III (402) is arranged at the center of the surface light source II (401).

3. A lunch box inspection machine according to claim 2, characterized in that: The bracket I (203), bracket II (304) and bracket III (404) are all fixedly mounted on the frame I (1000). The frame I (1000) is also provided with lifting plates I and II (1002 and 1009). The fixed plates I and II (1003 and 1008) are all fixedly mounted on the frame II (1001). The lifting plate I (1002) is liftably mounted below the fixed plate I (1003) via a lifting mechanism I (1005). The lifting plate II (1009) is liftably mounted below the fixed plate II (1008) via a lifting mechanism II (1007). The fixed plate I (1003) or the fixed plate II (1008) is also provided with a driving device I (1004) capable of driving the lifting mechanism I (1005) and the lifting mechanism II (1007).

4. The lunch box inspection machine according to claim 1, characterized in that: The frame III (507) is fixed on the lifting plate III (506), and the lifting plate III (506) is liftably arranged below the fixed plate III (502) through the lifting mechanism III (510). The fixed plate III (502) is fixed on the frame IV (501), and a driving device II (505) capable of driving the lifting mechanism III (510) is also fixed thereon.

5. The lunch box inspection machine according to claim 1, characterized in that: The frame V (709) is fixed on the lifting plate IV (703), and the lifting plate IV (703) is liftably arranged below the fixed plate IV (708) through the lifting mechanism IV (710), and the fixed plate IV (708) is fixedly provided with a driving device III (704) capable of driving the lifting mechanism IV (710).

6. A lunch box inspection machine according to any one of claims 1 to 5, characterized in that: It also includes a loading mechanism (100) and a unloading mechanism (800), wherein the loading mechanism (100) includes a conveyor belt I (101) and a flow strip I (102) arranged on both sides of the conveyor belt I (101); the unloading mechanism (800) includes a conveyor belt II (805) and a flow strip II (806) arranged on both sides of the conveyor belt II (805).

7. The lunch box inspection machine according to claim 6, characterized in that: On one side of the conveyor belt II (805), a waste product discharge channel (801) and a repairable product discharge channel (802) are sequentially arranged along the moving direction of the lunch box, and on the other side thereof, an air blowing nozzle I (804) opposite to the waste product discharge channel (801) and an air blowing nozzle II (803) opposite to the repairable product discharge channel (802) are sequentially arranged along the moving direction of the lunch box.

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