Visual detection device for printing defects of composite carton

Abstract

The invention particularly relates to a composite carton printing defect visual inspection device which comprises a bottom frame and a conveying line, a protective cover is arranged on the bottom frame, and an air cooling visual inspection purging assembly is arranged on the bottom frame and located in the protective cover. The air-cooling visual detection assembly comprises a shunting seat, a first cooling pipe, a second cooling pipe, a transverse adjusting assembly, a first CCD camera, a second CCD camera and an air blowing nozzle, and flexible pipelines are arranged between the shunting seat and the first cooling pipe, between the second cooling pipe and the first cooling pipe and between the second cooling pipe and the air blowing nozzle; an air cooler is fixedly connected to the bottom frame. The carton surface printing detection device has the beneficial effects that the carton surface printing condition can be automatically and visually detected, a camera can be cooled and surface scraps can be purged in the detection process, the specifications of different cartons can be adjusted, and the applicability is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of printing detection equipment, and particularly relates to a composite carton printing defect visual detection device. BACKGROUND

[0002] As the main body of modern logistics packaging, the surface printing quality of a carton is directly related to the appearance image of a commodity, brand value and the first impression of a consumer. In a high-speed printing production process, a series of printing defects such as missing printing, ink flying, stains, inaccurate overprinting, scratches, ink dots and color difference are easily caused due to process parameter fluctuation, mechanical vibration, ink viscosity change, plate wear or uneven surface of a printing substrate.

[0003] At present, the existing detection method for a carton mainly detects through a camera. In order to avoid environmental light influence and improve detection precision, a protective cover and a fill light are usually arranged to create a stable light source environment for detection. However, compared with an open environment, the temperature is relatively high in a long-term use process after the protective cover is arranged. The service life and detection precision of the camera in a high-temperature environment are relatively low. In addition, paper dust may be attached to the surface of the carton to shield the printing part during detection, which affects detection. Therefore, a composite carton printing defect visual detection device is needed. SUMMARY

[0004] The present application aims to provide a composite carton printing defect visual detection device which can automatically visually detect the surface printing condition of a carton, can cool and cool the camera and blow off surface residual dust during detection, and can adjust the specifications of different cartons, and has high applicability.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a composite carton printing defect visual detection device, comprising a chassis and a conveying line, a protective cover is arranged on the chassis, a forced air cooling visual detection blowing assembly is arranged on the chassis in the protective cover, the forced air cooling visual detection blowing assembly comprises a shunt seat, a first cooling pipe, a second cooling pipe, a transverse adjusting assembly, a first CCD camera, a second CCD camera and a blowing nozzle, flexible pipes are arranged between the shunt seat and the first cooling pipe, between the second cooling pipe and the first cooling pipe, and between the second cooling pipe and the blowing nozzle, the first CCD camera and the second CCD camera are fixedly connected in the first cooling pipe and the second cooling pipe respectively, a cooling fan is fixedly connected to the chassis, and the air outlet of the cooling fan is connected with the air inlet of the shunt seat.

[0006] Further, a guide assembly is arranged on the chassis at both sides of the conveying line, and the guide assembly comprises a guide seat, a guide plate and a guide rod.

[0007] Further, the guide seat is fixedly connected with the chassis, the guide plate is fixedly connected with the guide rod, the guide rod is slidably connected with the guide seat, and a screw rod is threadedly connected with the guide seat.

[0008] Further, the shunt seat and the transverse adjusting assembly are fixedly connected with the chassis, the first cooling pipe is fixedly connected with the moving end of the transverse adjusting assembly, the second cooling pipe is hingedly connected with the first cooling pipe, and the air blowing nozzle is hingedly connected with the second cooling pipe.

[0009] Further, the transverse adjusting assembly comprises a support, a lead screw, a guide column and a translation sliding seat, the support is fixedly connected with the chassis, the lead screw is threadedly connected with the chassis, the end of the lead screw is rotatably connected with the translation sliding seat through the support, and the translation sliding seat is slidably connected with the support.

[0010] Further, an auxiliary air inlet is arranged on the second cooling pipe, an auxiliary air flow channel is arranged on the shunt seat, an auxiliary cooling pipe is arranged between the auxiliary air inlet and the auxiliary air flow channel, and the flexible pipe and the auxiliary cooling pipe are both corrugated pipes.

[0011] Further, the air blowing nozzle is a duckbill-shaped air nozzle.

[0012] Further, temperature sensors are fixedly connected in the first cooling pipe and the second cooling pipe, and a light supplementing lamp is fixedly connected to the inner wall of the protective cover.

[0013] Compared with the prior art, the beneficial effects of the present application are as follows: the surface printing condition of the carton can be automatically visually detected, the camera can be cooled and the surface residual debris can be blown off during the detection process, and the specifications of different cartons can be adjusted, so the applicability is high. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0015] Figure 2 It is a schematic diagram of the internal structure of the protective cover of the present application;

[0016] Figure 3 It is a schematic diagram of the structure at the chassis of the present application;

[0017] Figure 4 It is a schematic diagram of the air-cooled visual detection and blowing assembly of the present application.

[0018] Figure 5 It is a sectional view of the shunt seat of the present application.

[0019] In the figure: 1. Base frame; 2. Conveyor line; 3. Protective cover; 401. Diverter seat; 4011. Auxiliary air flow channel; 402. First cooling pipe; 403. Second cooling pipe; 4031. Auxiliary air inlet; 404. Lateral adjustment assembly; 405. First CCD camera; 406. Second CCD camera; 407. Air blowing nozzle; 408. Flexible duct; 5. Air cooler; 601. Guide seat; 602. Guide plate; 603. Guide rod; 604. Screw; 7. Temperature sensor. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] Example:

[0023] like Figures 1-5 As shown, a composite carton printing defect visual inspection device proposed by the present invention includes a base frame 1 and a conveyor line 2, a protective cover 3 is provided on the base frame 1, and an air-cooled visual inspection purge component is provided on the base frame 1 inside the protective cover 3, the air-cooled visual inspection purge component includes a diverter seat 401, a first cooling pipe 402, a second cooling pipe 403, a lateral adjustment component 404, a first CCD camera 405, a second CCD camera 406 and an air blowing nozzle 407, a flexible pipe 408 is provided between the diverter seat 401 and the first cooling pipe 402, between the second cooling pipe 403 and the first cooling pipe 402, and between the second cooling pipe 403 and the air blowing nozzle 407, the first CCD camera 405 and the second CCD camera 406 are respectively fixedly connected to the first cooling pipe 402 and the second cooling pipe 403, and a cold air blower 5 is fixedly connected to the base frame 1, and the air outlet of the cold air blower 5 is connected to the air inlet of the diverter seat 401.

[0024] The guiding assembly is arranged on the chassis 1 on both sides of the conveying line 2, and comprises a guiding seat 601, a guiding plate 602 and a guiding rod 603, both ends of the guiding plate 602 are outwardly inclined and bent, the guiding seat 601 is fixedly connected with the chassis 1, the guiding rod 603 and the guiding plate 602 can be adjusted in translation sliding along the guiding seat 601, and the guiding rod 603 and the guiding plate 602 can be fixed by screwing the screw rod 604 after the adjustment is completed.

[0025] The shunt seat 401 and the transverse adjusting assembly 404 are fixedly connected with the chassis 1, the first cooling pipe 402 is fixedly connected with the moving end of the transverse adjusting assembly 404, the horizontal moving position of the first cooling pipe 402 can be adjusted through the transverse adjusting assembly 404, the second cooling pipe 403 is hingedly connected with the first cooling pipe 402, the second cooling pipe 403 can rotate around the first cooling pipe 402 to be adjusted in angle, and the air blowing nozzle 407 is hingedly connected with the second cooling pipe 403, so that the air blowing nozzle 407 can be adjusted in angle around the second cooling pipe 403.

[0026] The transverse adjusting assembly 404 comprises a support, a lead screw, a guide column and a translation sliding seat, the support is fixedly connected with the chassis 1, the lead screw is threadedly connected with the chassis 1, the end of the lead screw is rotationally connected with the translation sliding seat through the support, and the translation sliding seat is slidingly connected with the support.

[0027] An auxiliary air inlet 4031 is arranged on the second cooling pipe 403, an auxiliary air flow channel 4011 is arranged on the shunt seat 401, an arc-shaped flow guide plate is fixedly connected with the auxiliary air flow channel 4011 at a position in communication with the main flow channel of the shunt seat 401, the flow guide plate can guide part of the air flow from the main flow channel into the auxiliary air flow channel 4011 and then into the second cooling pipe 403 to cool the second CCD camera 406, and an auxiliary cooling pipe is arranged between the auxiliary air inlet 4031 and the auxiliary air flow channel 4011, the flexible pipe 408 and the auxiliary cooling pipe are both corrugated pipes.

[0028] The air blowing nozzle 407 is specifically a duckbill-shaped air blowing nozzle, the duckbill-shaped air blowing nozzle can blow a larger range and improve the blowing effect.

[0029] Temperature sensors 7 are fixedly connected in the first cooling pipe 402 and the second cooling pipe 403, the temperature sensors 7 are used for monitoring the temperature of the surrounding environment of the first CCD camera 405 and the second CCD camera 406, cold air is introduced to cool when the temperature of the surrounding environment of the first CCD camera 405 and the second CCD camera 406 is high, and a light supplementing lamp is fixedly connected to the inner wall of the first protective cover 3.

[0030] The working principle of the application is as follows:

[0031] The first cooling pipe 402 can be horizontally moved and position-adjusted by the transverse adjustment assembly 404 according to the size of the carton before use, the second cooling pipe 403 is hinged with the first cooling pipe 402, the second cooling pipe 403 can rotate around the first cooling pipe 402 for angle adjustment, the air blowing nozzle 407 is hinged with the second cooling pipe 403, and the air blowing nozzle 407 can be angle-adjusted around the second cooling pipe 403.

[0032] In use of the present application, the carton to be detected is conveyed by the conveying line 2, stopped conveying after being conveyed to the detection station, and the dry cold air is introduced into the distribution seat 401 by the air cooler 5, the cold air mainly enters the second cooling pipe 403 through the flexible pipe 408 and the first cooling pipe 402 and is finally discharged through the air blowing nozzle 407, and another part directly flows into the second cooling pipe 403 through the auxiliary air flow channel 4011 and is finally discharged through the air blowing nozzle 407 (an arc-shaped flow guide plate (referring to Figure 5 ) is fixedly connected with the main flow channel of the distribution seat 401 at the position where the auxiliary air flow channel 4011 communicates with the main flow channel, the flow guide plate can guide part of the air flow from the main flow channel into the auxiliary air flow channel 4011 and directly into the second cooling pipe 403 to cool the second CCD camera 406), and the printed part on the surface of the carton is detected by photographing through the first CCD camera 405 and the second CCD camera 406 during the detection operation.

[0033] In the present application, unless otherwise specified and limited, the terms "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrated; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] The above embodiments are used to further illustrate the present application, but do not limit the present application to these specific embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application should be understood as within the protection scope of the present application.

Claims

1. A composite carton printing defect visual inspection device, characterized by: The invention comprises a base frame (1) and a conveyor line (2), wherein a protective cover (3) is provided on the base frame (1), and an air-cooled visual detection purge assembly is provided on the base frame (1) and located inside the protective cover (3), wherein the air-cooled visual detection purge assembly comprises a diverter seat (401), a first cooling pipe (402), a second cooling pipe (403), a lateral adjustment assembly (404), a first CCD camera (405), a second CCD camera (406) and an air blowing nozzle (407), wherein the diverter seat (401) and the first cooling pipe (402) are connected to each other. Flexible pipes (408) are provided between the tubes (402), between the second cooling tube (403) and the first cooling tube (402), and between the second cooling tube (403) and the blowing nozzle (407). The first CCD camera (405) and the second CCD camera (406) are fixedly connected to the first cooling tube (402) and the second cooling tube (403), respectively. An air cooler (5) is fixedly connected to the base frame (1), and an air outlet of the air cooler (5) is connected to an air inlet of the diverter seat (401).

2. The composite carton printing defect visual inspection device according to claim 1, characterized in that: Guide assemblies are provided on both sides of the conveyor line (2) on the chassis (1), and the guide assemblies include a guide seat (601), a guide plate (602) and a guide rod (603).

3. The composite carton printing defect visual inspection device according to claim 2, characterized in that: The guide seat (601) is fixedly connected to the base frame (1), the guide plate (602) is fixedly connected to the guide rod (603), the guide rod (603) is slidably connected to the guide seat (601), and a screw rod (604) is threadedly connected to the guide seat (601).

4. The composite carton printing defect visual inspection device according to claim 1, characterized in that: The diverter seat (401) and the lateral adjustment assembly (404) are both fixedly connected to the base frame (1), the first cooling pipe (402) is fixedly connected to the movable end of the lateral adjustment assembly (404), the second cooling pipe (403) is hinged to the first cooling pipe (402), and the blowing nozzle (407) is hinged to the second cooling pipe (403).

5. The composite carton printing defect visual inspection device according to claim 4, characterized in that: The lateral adjustment assembly (404) comprises a bracket, a screw rod, a guide column and a translation slide, wherein the bracket is fixedly connected to the base frame (1), the screw rod is threadedly connected to the base frame (1), the end of the screw rod passes through the bracket and is rotationally connected to the translation slide, and the translation slide is slidably connected to the bracket.

6. The composite carton printing defect visual inspection device according to claim 4, characterized in that: An auxiliary air inlet (4031) is provided on the second cooling pipe (403), an auxiliary air flow channel (4011) is provided on the diverter seat (401), an auxiliary cooling pipe is provided between the auxiliary air inlet (4031) and the auxiliary air flow channel (4011), and both the flexible pipe (408) and the auxiliary cooling pipe are corrugated pipes.

7. The composite carton printing defect visual inspection device according to claim 1, characterized in that: The blowing nozzle (407) is specifically a duckbill-shaped nozzle.

8. The composite carton printing defect visual inspection device according to claim 1, characterized in that: A temperature sensor (7) is fixedly connected to each of the first cooling tube (402) and the second cooling tube (403), and a fill light is fixedly connected to the inner wall of the protective cover (3).

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