Intelligent food packaging device and packaging method

Abstract

The application discloses a kind of food intelligent packaging device and packaging method, and packaging device structure includes conveying unit, conveying unit is configured to convey object along intended path;Input unit is configured to input empty packaging box to conveying unit;Transshipment unit is configured to load non-light object into empty packaging box through packaging box opening, form filled packaging box;Sealing unit is configured to seal filled packaging box opening;Wherein, packaging box includes bottom plate in contact with conveying unit, bottom plate is configured to be light-transmitting material, conveying unit includes first conveying line conveying object along first path, first conveying line includes first frame, first conveying roller connected with first frame and drive assembly driving first conveying roller to rotate, first conveying roller is arranged along first path, first conveying roller includes roller body of light-transmitting material and light source connected with roller body, light emitted by light source enters roller body, and projection surface is arranged along the arrangement track of roller body.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of food packaging, in particular to a food intelligent packaging device and a packaging method. BACKGROUND

[0002] The packaging device of the prior art usually works with a conveying chain, a plurality of packaging and detection devices are arranged at the path position of the conveying chain, and the packaging of the product is completed through the coordination of the additionally arranged packaging devices and detection devices. The conveying chain itself only bears the task of conveying and does not bear other tasks, which makes the floor area of the conveying chain of the general packaging device larger and inconvenient to use in a smaller area. SUMMARY

[0003] The purpose of the present application is to overcome the shortcomings of the prior art and provide a food intelligent packaging device and a packaging method and method. Compared with the prior art, the food intelligent packaging device in the present application can also be arranged in a smaller area, which is convenient to use.

[0004] The present application is realized by the following technical scheme: the present application discloses a food intelligent packaging device, comprising:

[0005] A conveying unit configured to convey objects along a desired path;

[0006] An input unit configured to input empty packaging boxes to the conveying unit;

[0007] A loading unit configured to load non-light-transmitting objects into the empty packaging boxes through the packaging box openings to form filled packaging boxes;

[0008] A sealing unit configured to seal the filled packaging box openings;

[0009] The packaging box comprises a bottom plate in contact with the conveying unit, the bottom plate is configured of a light-transmitting material, the conveying unit comprises a first conveying line conveying objects along a first path, the first conveying line comprises a first frame, a first conveying roller connected to the first frame, and a driving assembly driving the first conveying roller to rotate, the first conveying roller is arranged along the first path, the first conveying roller comprises a roller body of a light-transmitting material and a light source connected to the roller body, the light emitted by the light source enters the roller body, a projection surface is arranged along the arrangement track of the roller body, and the roller body is configured to emit light to the empty packaging box and / or the filled packaging box.

[0010] Preferably, the conveying unit further comprises:

[0011] A second conveying line configured as a Mecanum wheel conveying line, which has at least four conveying directions;

[0012] The third conveying line is arranged in the first direction of the second conveying line;

[0013] The fourth conveying line is arranged in the second direction of the second conveying line;

[0014] The fifth conveying line is arranged in the third direction of the second conveying line;

[0015] The first conveying line is arranged in the fourth direction of the second conveying line, the input unit and the loading unit are arranged on the path of the first conveying line, and the sealing unit is arranged on the path of the third conveying line.

[0016] Preferably, in order to save energy, a plurality of first conveying rollers are arranged along the first path to form a conveying roller group, a plurality of conveying roller groups are arranged along a direction perpendicular to the first path to form a conveying area of the first conveying line, each of the conveying roller groups is driven by an independent driving device, and a user plans a reasonable conveying area according to the size of the packaging box, so that the number of conveying roller groups used in the conveying area is minimized to achieve the purpose of saving energy.

[0017] Preferably, in order to improve the stability of the packaging box moving on the conveying unit, a plurality of receiving cavities are formed in the outer side wall of the roller body in the circumferential direction, an elastic member acting on the movable block is arranged in the receiving cavity, the movable block is movably connected to the receiving cavity, an electromagnet is fixedly arranged at the bottom of the receiving cavity, and the bottom of the movable block is made of a magnetic material.

[0018] The roller body has two states. In the first state, the electromagnet attracts the movable block, and the movable block does not protrude out of the outer side wall of the roller body. In the second state, the electromagnet does not contact the movable block, and the movable block protrudes out of the outer side wall of the roller body. When the conveying area is determined, the electromagnet in the roller body in the conveying area is energized, so that the roller body is in the first state, and the roller body not in the conveying area is in the second state. The roller body in the second state is arranged outside the roller body in the first state, and the movable block protruding out of the roller body in the second state forms a retaining wall outside the conveying area. Due to the arrangement of the movable block, the packaging box will not move to other non-conveying areas during conveying, thereby improving the stability of the packaging box conveying.

[0019] Preferably, the structure of the input unit comprises:

[0020] The support device is arranged directly above the conveying unit;

[0021] The driving motor is arranged in two groups and mounted on the surface of the support device;

[0022] The roller column is arranged and mounted on the shaft portion of the driving motor;

[0023] The conveying belt is arranged in two groups and is driven to move by the two groups of driving motors;

[0024] A plurality of support pieces are vertically installed on the surface of the conveying belt away from the roller column;

[0025] The first gap is arranged between the support pieces on the two conveying belts, the edge part of the packaging box is provided with a support part, the stacked packaging boxes are located at the first gap position, and the edge position of the packaging box is supported by the support pieces.

[0026] Preferably, the light source comprises at least three independently driven light emitting units, the light emitting units comprise an ultraviolet light source, a first light source and a second light source, the brightness of the first light source and the second light source is different, and the user can switch the light emitting units based on different needs.

[0027] The application further discloses a food intelligent packaging method, and the packaging method comprises the following steps:

[0028] The empty packaging box is conveyed through the conveying unit in an expected posture;

[0029] The packaging box is conveyed to a first position, the first position is provided with a first conveying roller, the first conveying roller irradiates the bottom of the empty packaging box with light, a shadow formed by the empty packaging box under the irradiation of the light is displayed on a projection surface, the shadow is identified, and whether there is a light spot on the shadow is judged;

[0030] The empty packaging box with the light spot on the shadow is marked as a first packaging box;

[0031] The packaging box is conveyed to a second position, the second position is provided with a loading unit, an opaque object is loaded in the empty packaging box which is not marked to form a filled packaging box;

[0032] The packaging box is conveyed to a third position, the third position is provided with a first conveying roller, the first conveying roller irradiates the bottom of the filled packaging box with light, whether the brightness is uniform on the projection surface is detected, and the filled packaging box with non-uniform brightness is marked as a second packaging box;

[0033] The packaging box is conveyed to the position of a second conveying line, a third conveying line conveys the packaging box which is not marked, a fourth conveying line conveys the first packaging box, and a fifth conveying line conveys the second packaging box;

[0034] The third conveying line conveys the packaging box which is not marked to a sealing device group, the opening position of the packaging box which is not marked is sealed, and packaging is completed.

[0035] Preferably, the step of conveying the empty packaging box through the conveying unit in the expected posture comprises:

[0036] The bottom of the packaging box is placed on a platform to obtain a top view

[0037] Two first end points with the farthest distance are selected from the edge area of the top view of the packaging box, and the length of the line connecting the two first end points is the first size;

[0038] Two second end points different from the first end points are selected from the top view of the packaging box, and the length of the line connecting the two second end points is the second size, wherein the two second end points are the farthest in the direction perpendicular to the line connecting the two first end points;

[0039] A rectangle is constructed with the first projection and the second projection as the sides;

[0040] The rectangle is projected on the surface of the conveying unit, and one side of the rectangle is located in the edge area of the conveying roller set, and the conveying roller set covered by the packaging box in the direction perpendicular to the first path is determined as the effective conveying area;

[0041] The first conveying roller of the effective conveying area is energized, so that the roller body is in the first state, and the empty packaging box is placed on the surface of the conveying unit in the expected posture.

[0042] Preferably, the edge part of the packaging box is made of a light-transmitting material, and a sealing groove is formed, and the packaging box is further provided with a sealing cover, and the sealing cover is arranged with a hollow column, when the sealing cover seals the packaging box, the hollow column is accommodated in the sealing groove, and the two ends of the hollow column are in communication with the air;

[0043] The step of sealing the unmarked opening position of the packaging box comprises:

[0044] The third conveying line conveys the unmarked packaging box to the sealing unit, and the sealing unit covers the packaging box through the sealing cover at the opening position of the packaging box, and the sealing is initially formed;

[0045] The initially sealed packaging box is conveyed to the position of the dispensing equipment, and the dispensing equipment injects photosensitive glue into the sealing groove through one end of the hollow column;

[0046] The first conveying roller is arranged on the third conveying line at the position of the dispensing equipment, and when the dispensing equipment dispenses, the ultraviolet light source is started, and the photosensitive glue in the glue injection area is cured by ultraviolet light, and after the photosensitive glue is cured, the sealing of the unmarked packaging box is completed.

[0047] Preferably, the bottom of the edge area is further formed with a lens unit, and the light emitted by the ultraviolet light source is refracted to the sealing groove area after passing through the lens unit, wherein the area of the lens unit is larger than that of the sealing groove area, and by arranging the lens area, more area of ultraviolet light can be used in the sealing groove area, thereby reducing the curing time.

[0048] The application discloses a kind of food intelligent packaging device and packaging method and method, compared with prior art:

[0049] The first conveying line in the application is arranged as a detection area, which has the function of detecting packaging boxes at different stages. Specifically, the light emitted by the light source enters the roller body, which is a light-transmitting material and can emit light to the bottom of the box to be detected. The shadow formed on the projection surface by observing the bottom of the box under light irradiation is used to judge dirt or gaps. Since the dirt and gaps inside the object will affect the propagation of light when the light passes through the transparent object, a light spot or shape change will be produced on the projection. In the application, the light source selection, the distance between the packaging box and the projection surface, and the light intensity are tested and adjusted to obtain the clearest projection image. For the identification of the projection image, the actual projection image can be compared with the image in the database to determine, or it can be identified manually. This is not limited in detail. The roller body can be made of glass and have a frosted surface on the outside. A reflective sheet is attached to the inner surface of the roller body, and a dot pattern is arranged on the inner surface of the roller body. When the light from the light source enters the roller body, the light is diffused by the dot pattern and the frosted surface, forming a uniform light source, thereby improving the accuracy of the detection result. The detection device is integrated on the conveying unit, and the packaging device in the application can be arranged in a small area, which is convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0050] Figure 1 It is a structural schematic diagram of the food intelligent packaging device in the embodiment of the application.

[0051] Figure 2 It is a structural schematic diagram of the packaging box in an embodiment.

[0052] Figure 3 It is a structural schematic diagram of the conveying unit in an embodiment.

[0053] Figure 4 It is a structural schematic diagram of the first conveying roller in an embodiment.

[0054] Figure 5 It is a partial sectional view of the first conveying roller in an embodiment.

[0055] Figure 6 It is a structural schematic diagram of the input unit in an embodiment.

[0056] Figure 7 It is a top view of the arrangement of the packaging box on the conveying unit in an embodiment.

[0057] Figure 8 It is an adjustment Figure 7 It is a step flow chart of adjusting the posture of the packaging box in an embodiment.

[0058] Figure 9 It is a step flow chart of sealing the packaging box by the dispensing equipment.

[0059] Figure 10 Figure 1 is a schematic view of the structure of the edge area of the packaging box in an embodiment. DETAILED DESCRIPTION

[0060] The embodiments of the present application are described in detail below, which are implemented on the premise of the technical solutions of the present application, and detailed implementation manners and specific operation processes are given, but the protection scope of the present application is not limited to the following embodiments.

[0061] As Figure 1 shown, the present application is implemented by the following technical solutions: the present application discloses a food intelligent packaging device, comprising: a conveying unit 1, an input unit 2, a loading unit 3 and a sealing unit 4, the conveying unit 1 is configured to convey objects along the intended path; the input unit 2 is configured to input empty packaging boxes 6 to the conveying unit 1; the loading unit 3 is configured to load non-lightproof objects into the empty packaging boxes through the packaging box opening to form filled packaging boxes 6; the sealing unit 4 is configured to seal the opening of the filled packaging boxes 6; wherein the packaging box 6 comprises a bottom plate in contact with the conveying unit 1, the bottom plate is configured to be a light-transmitting material, the conveying unit 1 comprises a first conveying line 11 conveying objects along a first path, the first conveying line 11 comprises a first frame, a first conveying roller connected to the first frame and a driving assembly driving the first conveying roller to rotate, the first conveying roller is arranged along the first path, the first conveying roller comprises a roller body 111 of a light-transmitting material and a light source 112 connected to the roller body 111, the light emitted by the light source 112 enters the roller body 111, a projection surface is arranged along the arrangement track of the roller body 11, and the roller body 111 is configured to project light onto the empty packaging box and / or the filled packaging box.

[0062] The packaging device in the present application is provided with detection equipment and packaging equipment on the conveying unit 1, part of the input unit 2, the loading unit 3 and the sealing unit 3 are all packaging equipment, the empty packaging boxes 6 are first conveyed to the input unit 2 by the input unit 1, the conveying unit 1 is a roller type conveying belt, the structure thereof comprises a conveying roller and a driving assembly, and the person skilled in the art can understand that the device for driving the rotation of the conveying roller can be composed of a motor, a speed reducer, a shaft coupling and a chain, and the loading unit 3 can be a device for loading granular solids, a device for loading blocky solids, or a food after vacuum packaging, and the sealing unit can be sealed by a cover, or the packaging material can be heated to a certain temperature to melt and fuse with another layer of packaging material to form a seal, and the person skilled in the art can adjust the input unit 2, the loading unit 3 and the sealing unit 4 in the present application according to the actual situation, and the above description is only for easy understanding and should not be understood as a specific limitation of the packaging in the present application. For the light-transmitting material in the present application, it can be resin or glass.

[0063] As Figure 2 shown, the structure of the packaging box in an embodiment, Figure 2 The a area in the figure is the completed cleaning dirt, and the b area is the damaged area on the packaging box 6, and the A area is the bottom of the packaging box. The roller body 11 in the application has the function of detecting the two defective packaging boxes 6. Specifically, the first conveying line 11 is arranged as a detection area, and the area has the function of detecting packaging boxes 6 at different stages. Specifically, the light emitted by the light source 112 enters the roller body 111, which is a light-transmitting material and can emit light to the bottom of the box 6 to be detected. The shadow formed on the projection surface under the light irradiation is observed to determine the dirt or gap. Since when the light passes through the transparent object, the dirt and gap inside the object will affect the propagation of the light, thereby producing light spots or shape changes on the projection. In the application, the light source 112, the distance between the packaging box 6 and the surface of the projection, and the light intensity are tested and adjusted to obtain the clearest projection image. For the identification of the projection image, the actual projection image can be compared with the image in the database to determine, or it can be manually identified. Herein, no detailed limitation is made. For the roller body 111, it can be made of glass material. In order to prevent uneven light irradiation, the outer side of the roller body 111 is frosted, and a reflective sheet is attached to the inner surface of the roller body 111. The net dots are arranged on the inner surface of the roller body 111. When the light of the light source 112 enters the roller body 111, the light source is relatively uniform through the diffuse reflection (diffusion) of the net dots and the frosted surface, thereby improving the accuracy of the detection result. The detection device is also integrated on the conveying unit 1. The packaging device in the application can also be arranged in a small area space, which is convenient to use.

[0064] As Figure 3 shown, the conveying unit 1 also includes a second conveying line 12, which is configured as a Mecanum wheel conveying line and has at least four conveying directions. The third conveying line 13 is configured in the first direction of the second conveying line 13. The fourth conveying line 14 is configured in the second direction of the second conveying line 13. The fifth conveying line 15 is configured in the third direction of the second conveying line 13. The first conveying line 11 is in the fourth direction of the second conveying line 13. The input unit 1 and the loading unit are located on the path of the first conveying line 11. The sealing unit 4 is located on the path of the third conveying line 13.

[0065] For the conveying unit 1 in the application, it is composed of multiple conveying lines, the multiple conveying lines are connected by the second conveying line 12 to form a whole, each conveying line undertakes different functions, under the coordination of each conveying line, according to the detection results of the packaging boxes in different stages, the sorting work of the packaging boxes is completed, the workers carry out different processing steps according to the sorted packaging boxes, so as to realize the maximum utilization of the packaging boxes 6, the unbroken packaging boxes 6 can be reused, and the broken packaging boxes can be remolded by extrusion after recycling.

[0066] The Mecanum wheel is a kind of omni-directional wheel which is composed of a hub and rollers around the hub, the angle between the axis of the Mecanum wheel roller and the hub is 45°. A plurality of rollers are distributed on the rim of the hub. When the rollers rotate around the fixed hub shaft, the envelope of each small roller is a cylindrical surface, so the wheel can continuously roll forward. Four such wheels are combined to realize the omni-directional movement function of the mechanism, which will not be described in detail here.

[0067] In order to save energy, a plurality of first conveying rollers are arranged along a first path to form a conveying roller group, a plurality of conveying roller groups are arranged along a direction perpendicular to the first path to form a conveying area of the first conveying line 11. For the conveying roller group, it is driven by an independent driving device. The user plans a reasonable conveying area according to the size of the packaging box 6, so that the number of conveying roller groups used in the conveying area is the least, so as to achieve the purpose of saving energy, such as Figure 3 shown, Figure Three The conveying unit 1 in the

[0068] For example, Figure 4 and Figure 5 In order to improve the stability of the movement of the packaging box 6 on the conveying unit 1, a plurality of receiving cavities 114 are formed on the outer side wall of the roller body 111 in the circumferential direction, and an elastic element acting on the movable block 113 is arranged in the receiving cavity 114. The movable block 113 is movably connected to the receiving cavity 114, and the bottom of the movable block 113 is configured to be magnetic material.

[0069] The roller body 111 has two states. In the first state, the electromagnet attracts the movable block 113, and the movable block does not protrude out of the outer side wall of the roller body 111. In the second state, the electromagnet does not contact the movable block 113, and the movable block protrudes out of the outer side wall of the roller body 111. The elastic element can be a spring.

[0070] When the conveying area is determined, the electromagnet in the roller body 111 in the conveying area is energized, so that the roller body 111 is in the first state, and the roller body 111 not in the conveying area is in the second state, the roller body 111 in the second state is arranged at the periphery of the roller body 111 in the first state, the movable block 113 protruding on the roller body 111 in the second state forms a retaining wall at the periphery of the conveying area, and the packaging box 6 cannot move to other non-conveying areas during conveying due to the arrangement of the movable block 113, thereby improving the stability of conveying the packaging box 6.

[0071] In an embodiment, as shown in Figure 6 The structure of the input unit 2 includes a support device 21 arranged directly above the conveying unit 1, two groups of driving motors 22 installed on the surface of the support device 21, roller columns 23 arranged and installed on the shaft part of the driving motors 22, two conveying belts 24 respectively driven to move by the two groups of driving motors 22, and a plurality of support pieces 25 vertically installed on the surface of the conveying belt 24 away from the roller columns 23.

[0072] The first gap is provided between the support pieces 25 on the two conveying belts 24, the edge part of the packaging box 6 is provided with a supporting part, the stacked packaging boxes are located at the first gap position, and the edge position of the packaging box 6 is supported by the support pieces 25, as shown in Figure 2 Figure 2 The side wall of the side edge of the packaging box is used for surrounding, and the edge part of the packaging box 6 is at the C position.

[0073] For the input unit 2, the rotation of the driving motor 21 is increased, the rotation of the roller column 23 is driven, the rotation of the conveying belt 24 is driven by the roller column 23, the directions of rotation of the two groups of driving motors 22 are opposite, the movement direction of the support piece 25 gradually moves away from the angle through the rotation of the conveying belt 24, and the edge position of each packaging box 6 is supported by the support piece 25, when the two support pieces 25 gradually move away, the packaging box falls into the conveying unit 1 surface directly below and is conveyed.

[0074] In an embodiment, the light source 112 includes at least three independently driven light emitting units, the light emitting units include ultraviolet light sources, first light sources and second light sources, the brightness of the first light sources and the second light sources is different, and a user can switch the light emitting units based on different needs.

[0075] The application also discloses a food intelligent packaging method, and the packaging method comprises the following steps:

[0076] Step one: as Figure 7 ​As shown, for some irregularly shaped packaging boxes, they need to occupy 5 sets of conveyor rollers to be transported normally. In order to reduce the use of conveyor rollers, the empty packaging box 6 is transported through the conveyor unit 1 in the expected posture. The posture of the packaging box 6 is adjusted to adapt to the conveyor unit and minimize the use of conveyor rollers.

[0077] Step 2: The packaging box 6 is conveyed to the first position, where a first conveyor roller is arranged. The first conveyor roller emits light to illuminate the bottom of the empty packaging box 6, and displays the shadow formed by the empty packaging box 6 under the light on the projection surface. The shadow is identified to determine whether there are light spots on the shadow.

[0078] Step 3: Mark the empty packaging box with light spots on the shadow as the first packaging box. The marking method can be to use the camera to dynamically capture the packaging box.

[0079] Step 4: The packaging box is transported to the second position, where a loading unit 3 is arranged. An opaque object is loaded into an unmarked empty packaging box to form a filled packaging box.

[0080] Step 5: The packaging box is transported to the third position, where the first conveyor roller is arranged. The first conveyor roller emits light to illuminate the bottom of the filling packaging box 6 and detects whether the brightness is uniform on the projection surface. The filling packaging box with uneven brightness is marked as the second packaging box.

[0081] Step Six: The packaging box is conveyed to position 12 on the second conveyor line, the third conveyor line conveys the unmarked packaging box, the fourth conveyor line conveys the first packaging box, and the fifth conveyor line conveys the second packaging box;

[0082] Step 7: The third conveyor line 13 transports the unmarked packaging boxes to the sealing equipment group, seals the opening of the unmarked packaging boxes, and completes the packaging.

[0083] In one embodiment, such as Figure 8 As shown, the steps of conveying the empty packaging box 6 through the conveying unit 1 in the desired orientation include:

[0084] Step S1: Place the bottom of the packaging box 6 on a platform to obtain a top view;

[0085] Step S2: Select two farthest first endpoints from the edge area of ​​the top view of the packaging box. The length of the line connecting the two first endpoints is the first dimension. Figure 8 The first dimension is D1;

[0086] Step S3: In the top view of the packaging box, select two second endpoints that are different from the first endpoint. The length of the line connecting the two second endpoints is the second dimension. The distance between the two second endpoints is greatest in the direction perpendicular to the line connecting the two first endpoints. Figure 8The second size is D2;

[0087] Step S4: constructing a rectangle with the first projection and the second projection as the sides of the rectangle;

[0088] Step S2: projecting the rectangle on the surface of the conveying unit 1, with one side of the rectangle located at the edge area of the conveying roller group, and determining the conveying roller group covered by the packaging box in the direction perpendicular to the first path as the effective conveying area, as shown in Figure 8 After adjusting the posture by the above method, the special-shaped packaging box only occupies three conveying roller groups, thereby solving the problem of energy use and reducing the loss of equipment.

[0089] Step S5: powering the first conveying roller of the effective conveying area, so that the roller body 111 is in the first state, and the empty packaging box 6 is placed on the surface of the conveying unit 1 in the expected posture.

[0090] In an embodiment, the edge part of the packaging box 6 is made of a light-transmitting material and is provided with a sealing groove, and the packaging box is further provided with a sealing cover, and the sealing cover is provided with a hollow column, when the sealing cover seals the packaging box 6, the hollow column is accommodated in the sealing groove, and the two ends of the hollow column are in communication with the air, as shown in Figure 2 The D position is the sealing groove, as shown in Figure 9 The E position is the sealing cover, and the E1 position is the hollow column.

[0091] As shown in Figure 9 The step of sealing the unmarked opening position of the packaging box includes:

[0092] Step A: the third conveying line 13 conveys the unmarked packaging box to the sealing unit 4, and the sealing unit 4 covers the packaging box 6 at the opening position of the packaging box by the sealing cover, to preliminarily form a seal.

[0093] Step B: conveying the preliminarily sealed packaging box 6 to the position of the dispensing device 5, and the dispensing device 5 injects photosensitive glue into the sealing groove through one end of the hollow column, and the photosensitive glue can be UV glue.

[0094] Step C: the first conveying roller is arranged on the third conveying line 13 at the position of the dispensing device 5, and at the same time of injecting glue by the dispensing device 5, the ultraviolet light source 6 is started to cure the photosensitive glue in the injection area by ultraviolet light, and after the photosensitive glue is cured, the sealing of the unmarked packaging box is completed, Figure 9 The F position is the cured photosensitive glue, and the bottom of the photosensitive glue is adhered to the bottom of the sealing groove. By the above method, the edge of the packaging box does not need to be heated, or other protective layers are heated to package the packaging box, thereby avoiding the influence of temperature on the food in the packaging box 6, and the sealing cover is not easy to fall off from the packaging box.

[0095] An embodiment is shown in Figure 10As shown, the bottom of the edge area is also formed with a lens unit, and the light emitted by the ultraviolet light source 6 is refracted to the sealing groove area after passing through the lens unit, wherein the area of the lens unit is larger than that of the sealing groove area, and by arranging the lens area, more area of ultraviolet light can be used in the sealing groove area, thereby reducing the curing time.

[0096] In summary, the first conveying line 11 in the application is arranged as a detection area, which has the function of detecting packaging boxes 6 at different stages. Specifically, the light emitted by the light source 112 enters the roller body 111, which is a light-transmitting material and can emit light to the bottom of the box 6 to be detected. By observing the shadow formed on the projection surface under the light irradiation, the dirt or gap on the bottom of the box 6 can be judged. Since when the light passes through the transparent object, the dirt and gap inside the object will affect the propagation of the light, thereby producing light spots or shape changes on the projection. In the application, the light source 112, the distance between the packaging box 6 and the surface of the projection, and the light intensity are tested and adjusted to obtain the clearest projection image. As for the identification of the projection image, the actual projection image can be compared with the image in the database to determine, or it can be identified manually. This will not be limited in detail. As for the roller body 111, it can be made of glass and have a frosted surface on the outside. A reflective sheet is attached to the inner surface of the roller body 111, and a screen dot is arranged on the inner surface of the roller body 111. When the light from the light source 112 enters the roller body 111, the light is diffused by the screen dot and the frosted surface, so that the roller body 111 forms a uniform light source, thereby improving the accuracy of the detection result. The detection device is also integrated on the conveying unit 1, and the packaging device in the application can be arranged in a small area, which is convenient to use.

[0097] The above is only a preferred embodiment of the application, but the protection scope of the application is not limited thereto. Any skilled person in the art can make equivalent replacements or changes within the technical range disclosed in the application according to the technical solution and the inventive concept of the application, which should be covered within the protection scope of the application.

[0098] It is to be understood that the phrases such as "first" and "second", and the like, used herein are used only to distinguish one from another entity or action, and do not require or imply these entities or actions to be in any particular sequence or order. Also, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

Claims

1. A food product intelligent packaging device, characterized by, The application relates to a packaging device for packaging non-transparent objects, comprising: a conveying unit configured to convey objects along a desired path; an input unit configured to input empty packaging boxes into the conveying unit; a loading unit configured to load non-transparent objects into the empty packaging boxes through a packaging box opening to form filled packaging boxes; a sealing unit configured to seal the filled packaging box opening; wherein the packaging box comprises a bottom plate in contact with the conveying unit, the bottom plate is configured to be made of a light-transmissive material, the conveying unit comprises a first conveying line configured to convey objects along a first path, the first conveying line comprises a first frame, a first conveying roller coupled to the first frame, and a driving assembly configured to drive the first conveying roller to rotate, the first conveying roller is arranged along the first path, the first conveying roller comprises a roller body made of a light-transmissive material and a light source connected to the roller body, light emitted by the light source enters the roller body, a projection surface is arranged along the arrangement track of the roller body, and the roller body is configured to project light onto the empty packaging box and / or the filled packaging box.

2. A food product intelligent packaging device as claimed in claim 1, characterized in that, The conveying unit further comprises: a second conveying line configured as a Mecanum wheel conveying line, which has at least four conveying directions; a third conveying line configured to be located in the first direction of the second conveying line; a fourth conveying line configured to be located in the second direction of the second conveying line; a fifth conveying line configured to be located in the third direction of the second conveying line; wherein the first conveying line is located in the fourth direction of the second conveying line, the input unit and the loading unit are located on the path of the first conveying line, and the sealing unit is located on the path of the third conveying line.

3. A food product intelligent packaging device as claimed in claim 1, characterized in that, A plurality of the first conveying rollers are arranged along the first path to form a conveying roller group, and a plurality of the conveying roller groups are arranged along a direction perpendicular to the first path to form a conveying area of the first conveying line.

4. A food product intelligent packaging device as claimed in claim 3, characterized in that, A plurality of receiving cavities are formed in the outer wall of the roller body in the circumferential direction, an elastic member acting on a movable block is arranged in the receiving cavity, the movable block is movably connected to the receiving cavity, an electromagnet is fixedly arranged at the bottom of the receiving cavity, and the bottom of the movable block is made of a magnetic material. Wherein, the roller body has two states, in the first state, the electromagnet attracts the movable block, and the movable block does not protrude out of the outer wall of the roller body; in the second state, the electromagnet does not contact the movable block, and the movable block protrudes out of the outer wall of the roller body.

5. The intelligent packaging device for food according to claim 1, wherein The structure of the input unit comprises: a support device arranged directly above the conveying unit; two groups of driving motors mounted on the surface of the support device; a roller column arranged and mounted on the shaft portion of the driving motor; two conveying belts driven to move by the two groups of driving motors; a plurality of support pieces vertically mounted on the surface of the conveying belt away from the roller column; wherein a first gap is arranged between the support pieces on the two conveying belts, the edge portion of the packaging box is provided with a support portion, the stacked packaging boxes are located at the first gap position, and the edge position of the packaging box is supported by the support pieces.

6. A food product intelligent packaging device as claimed in claim 4, characterized in that, The light source comprises at least three independently driven light emitting units, the light emitting units comprising an ultraviolet light source, a first light source and a second light source, the first light source and the second light source having different brightness.

7. A method of intelligent packaging of food products, characterized in that, The packaging method is performed by the packaging device of claim 6, and the packaging method comprises the steps of: transporting the empty packaging box in the expected posture through the conveying unit; transporting the packaging box to a first position where a first conveying roller is arranged, the first conveying roller emitting light to irradiate the bottom of the empty packaging box, displaying the shadow of the empty packaging box formed under the light irradiation on a projection surface, identifying the shadow, and determining whether there is a light spot on the shadow; marking the empty packaging box with the light spot on the shadow as a first packaging box; transporting the packaging box to a second position where a loading unit is arranged, forming a filled packaging box by loading an opaque object in the empty packaging box that is not marked; transporting the packaging box to a third position where a first conveying roller is arranged, the first conveying roller emitting light to irradiate the bottom of the filled packaging box, detecting whether the brightness is uniform on the projection surface, and marking the filled packaging box with non-uniform brightness as a second packaging box; transporting the packaging box to a second conveying line position, the third conveying line conveying the packaging box that is not marked, the fourth conveying line conveying the first packaging box, and the fifth conveying line conveying the second packaging box; the third conveying line conveying the packaging box that is not marked to a sealing device group, and sealing the open position of the packaging box that is not marked to complete the packaging.

8. A method of intelligent packaging of food products according to claim 7, characterized in that, The step of transporting the empty packaging box in the expected posture through the conveying unit comprises: placing the bottom of the packaging box on a platform to obtain a top view selecting two first end points with the farthest distance through the edge area of the top view of the packaging box, and the length of the line connecting the two first end points is a first size; selecting two second end points different from the first end points in the top view of the packaging box, and the length of the line connecting the two second end points is a second size, wherein the two second end points are farthest in the direction perpendicular to the line connecting the two first end points; constructing a rectangle with the first projection and the second projection as the sides; projecting the rectangle on the surface of the conveying unit, and placing one side of the rectangle in the edge area of the conveying roller group, and determining the conveying roller group covered by the packaging box in the direction perpendicular to the first path as an effective conveying area; energizing the first conveying roller of the effective conveying area, so that the roller body is in a first state, and the empty packaging box is placed on the surface of the conveying unit in the expected posture.

9. A method of intelligent packaging of food products according to claim 8, characterized in that, The edge part of the packaging box is made of light-transmitting material, and a sealing groove is provided, and the packaging box is further provided with a sealing cover, and the sealing cover is provided with a hollow column, when the sealing cover seals the packaging box, the hollow column is accommodated in the sealing groove, and the two ends of the hollow column are in communication with the air; The step of sealing the open position of the packaging box that is not marked comprises: the third conveying line conveying the packaging box that is not marked to a sealing unit, the sealing unit covering the packaging box with the sealing cover at the open position of the packaging box to preliminarily form a seal; transporting the preliminarily sealed packaging box to a dispensing device position, and the dispensing device injecting photosensitive glue into the sealing groove through one end of the hollow column; The first conveying roller is arranged on the third conveying line at the position of the dispensing equipment, and when the dispensing equipment dispenses, the ultraviolet light source is started to cure the photosensitive glue in the glue injection area by ultraviolet light.

10. A method of intelligent packaging of food products according to claim 9, characterized in that, The bottom of the edge area is further formed with a lens unit, and the light emitted by the ultraviolet light source is refracted to the sealing groove area after passing through the lens unit.

Images