Printing product detection device and product packaging production line

Abstract

The utility model belongs to the technical field of printing, and discloses a printed product detection device and a product packaging production line. The printed product detection device comprises a frame body, a conveying mechanism, an infrared detection piece, a scanning camera and a removing mechanism, wherein the frame body comprises two mounting frames arranged at the top; the conveying mechanism is configured to convey products to move in the first direction. A plurality of infrared detection pieces are arranged on each mounting frame at intervals and used for identifying the positions of edges or tangent lines of the products at preset positions so as to identify the sizes of the products in the first direction; the scanning camera is configured to pick up an image of the product to judge whether the printing image of the product has defects or not; and the removing mechanism is configured to be capable of taking out the defective products from the conveying mechanism. According to the printed product detection device and the product packaging production line, the sizes of the products in the first direction and the sizes of the products in the second direction can be accurately detected, meanwhile, the defects and the positions of printed patterns can be detected, and the qualified rate of the products is increased.

Description

Technical Field

[0001] This utility model relates to the field of printing technology, and in particular to a printing product testing device and a product packaging production line. Background Technology

[0002] In the early stages of printing technology development, print quality inspection relied primarily on manual labor. This method depended on the experience and subjective judgment of operators, resulting in low efficiency and accuracy. Lacking subjective standards, it was highly susceptible to the influence of individual subjective factors. With the advancement of printing technology, theoretically based objective evaluation methods, such as density and colorimetry, began to be used. These methods assess print quality by measuring its physical parameters (such as density and colorimetry). However, these methods are typically offline, requiring the prints to be removed from the production line for inspection. This not only reduces production efficiency but also makes real-time monitoring of the process impossible.

[0003] In the packaging industry, paper packaging is manufactured and inspected on the production line in a flat state before being made into a three-dimensional finished product, such as... Figure 1 As shown, for the product, several dimensions in the first direction are particularly important. The dotted lines represent the cutting lines, which will be bent later. These dimensions include, but are not limited to, the total length of the product in the first direction, the length of each protrusion in the first direction (X direction in the figure), the length from the cutting line to the edge, and the length between the cutting line and adjacent cutting lines. In addition, the position and defects of the printed patterns on the product must also meet the requirements. People often overlook whether the position of the printed graphics is accurate, and only realize it after the product is formed. The tolerance range of the dimensions in the second direction (Y direction in the figure, X direction is perpendicular to Y direction) is larger, but it still needs to be measured.

[0004] Therefore, there is an urgent need to design a printing product testing device and a product packaging production line to solve the above problems. Utility Model Content

[0005] One objective of this invention is to provide a printing product inspection device that can accurately detect the dimensions of a product in the first direction and the product dimensions in the second direction, while also detecting defects and locations in the printed pattern, thereby replacing manual production, improving production efficiency, and increasing the product qualification rate.

[0006] Another objective of this invention is to provide a product packaging production line that ensures accurate product dimensions, high pass rate, and high customer satisfaction after testing.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] Printed product inspection device, including:

[0009] The frame includes two mounting brackets disposed on the top, the mounting brackets extending along a first direction, the two mounting brackets being spaced apart in a second direction, the first direction being perpendicular to the second direction;

[0010] A transport mechanism is disposed between the two aforementioned mounting frames, and the transport mechanism is configured to transport the product along the aforementioned first direction.

[0011] Infrared detection elements are provided on each of the aforementioned mounting brackets at intervals. The infrared detection elements are configured to emit infrared rays along the second direction and identify the position of the edge or tangent of the product when it is in a preset position in order to identify the various dimensions of the product in the first direction.

[0012] A scanning camera is mounted on the frame and located downstream of the infrared detector. The scanning camera is configured to acquire an image of the product, determine whether the printed image of the product is defective, and measure the dimensions of the product in the second direction.

[0013] A rejection mechanism is provided on the frame, and the rejection mechanism is communicatively connected to the infrared detector and the scanning camera, and is configured to remove defective products from the transport mechanism.

[0014] As an alternative, the product forms two outer edges with a spacing of A at both ends in the first direction, the outer edges extend along the second direction, and at least one of the mounting brackets is provided with two infrared detection elements with a spacing of A at the preset position.

[0015] As an alternative, the product forms a plurality of protrusions protruding in the second direction, each of the protrusions forming an inner edge extending in the second direction, and an infrared detection element is provided at the product at the preset position corresponding to each of the inner edges.

[0016] As an optional solution, the product forms a plurality of cutting lines along the second direction, and the product at the preset position is provided with an infrared detection element corresponding to each cutting line.

[0017] As an optional solution, the frame also includes a gravity detection device and a bottom support frame. The gravity detection device is disposed between the bottom support frame and the mounting frame, and the gravity detection device is communicatively connected to the rejection mechanism.

[0018] As an optional solution, at least one end of the aforementioned mounting bracket is provided with the aforementioned gravity detection element between the aforementioned bottom support bracket and the aforementioned mounting bracket.

[0019] As an optional option, the aforementioned exclusion agencies include:

[0020] A rotary drive component is mounted on the aforementioned frame.

[0021] The telescopic drive component is connected to the output end of the aforementioned rotary drive component via a bending frame;

[0022] The adsorption element is connected to the vacuum pump and to the output end of the telescopic drive element. The rotary drive element can drive the telescopic drive element to rotate, and the telescopic drive element can drive the adsorption element to move closer to or away from the transport mechanism.

[0023] As an optional solution, two rejection mechanisms are provided at intervals in the second direction, corresponding one-to-one with the mounting brackets; and / or

[0024] The aforementioned scanning camera is mounted on the aforementioned telescopic drive member or the aforementioned rotary drive member.

[0025] As an alternative, a finished product placement rack is provided downstream of the aforementioned frame, the finished product placement rack being positioned lower than the aforementioned mounting frame, and an inclined conveyor belt is provided between the downstream end of the aforementioned transport mechanism and the aforementioned finished product placement rack.

[0026] The product packaging production line includes the aforementioned printed product testing equipment.

[0027] The beneficial effects of this utility model are as follows:

[0028] This utility model provides a printing product inspection device. By arranging several infrared detectors at intervals on each mounting frame, when a product passes a preset position, the infrared rays emitted by the multiple infrared detectors illuminate the product. Figure 1 The system analyzes the edge or cut line positions of the product to obtain data on each dimension in the first direction. This data is compared with standard data to determine if the product's dimensions in the first direction are acceptable. The product continues to be transported downstream along the conveyor mechanism, where a scanning camera checks the image quality and dimensions in the second direction to determine if the product is acceptable. If either the infrared detector or the scanning camera determines the product is unacceptable, a rejection mechanism downstream will remove the product. Unacceptable products will not proceed to subsequent processing. The entire process requires no manual intervention and can accurately detect each dimension of the product in the first and second directions. It can also detect defects and locations in the printed patterns, improving production efficiency and increasing the product pass rate. Specifically, when the infrared light from the downstream infrared detector is blocked, the system recognizes that the product has reached a preset position. Other infrared detectors then begin to detect the corresponding edge or cut line positions, calculate the distance, and determine if the deviation value is within the tolerance range to determine if the product's dimensions in the first direction are acceptable.

[0029] This utility model also provides a product packaging production line, including the aforementioned printed product inspection device. By employing the aforementioned printed product inspection device, the product packaging production line ensures accurate product dimensions, a high pass rate, and high customer satisfaction. Attached Figure Description

[0030] Figure 1 The planar surface of the product provided in this embodiment of the utility model Figure 1 ;

[0031] Figure 2 This is a schematic diagram of the structure of the printing product testing device provided in this embodiment of the utility model;

[0032] Figure 3 The planar surface of the product provided in this embodiment of the utility model Figure 2 .

[0033] In the picture:

[0034] 10. Frame; 11. Mounting frame; 12. Gravity detection component; 13. Bottom support frame;

[0035] 20. Transport mechanism; 21. Transport roller;

[0036] 30. Infrared detection components;

[0037] 40. Scanning camera; 50. Rejection mechanism; 51. Rotary drive component; 52. Telescopic drive component; 53. Adsorption component; 54. Bending frame; 60. Finished product placement rack; 70. Conveyor belt;

[0038] 200. Product; 210. Cutting line; 220. Protrusion; 221. Inner edge; 230. Outer edge. Detailed Implementation

[0039] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0040] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0043] This embodiment provides a printed product inspection device that can accurately detect the dimensions of the product 200 in a first direction and a second direction, and can also detect defects and locations in the printed pattern, replacing manual production, improving production efficiency, and increasing the pass rate of the product 200. Figure 2 As shown, the printed product inspection device includes a frame 10, a transport mechanism 20, infrared detectors 30, a scanning camera 40, and a rejection mechanism 50. The frame 10 includes two mounting brackets 11 mounted on the top, extending along a first direction (X direction in the figure). The two mounting brackets 11 are spaced apart in a second direction (Y direction in the figure, which is perpendicular to the X direction and consistent with the coordinate system of the product 200). The transport mechanism 20 is located between the two mounting brackets 11 and is configured to transport the product 200 along the first direction. Each mounting bracket 11 has several infrared detectors 30 spaced apart. The measuring element 30 is configured to emit infrared light along a second direction and identify the position of the edge or tangent of the product 200 when it is in a preset position to identify the various dimensions of the product 200 in a first direction; the scanning camera 40 is mounted on the frame 10 and located downstream of the infrared measuring element 30. The scanning camera 40 is configured to pick up images of the product 200, determine whether the printed image of the product 200 is defective, and measure the dimensions of the product 200 in the second direction; the rejection mechanism 50 is disposed on the frame 10, and the rejection mechanism 50 is communicatively connected to the infrared measuring element 30 and the scanning camera 40, and is configured to remove defective products from the transport mechanism 20.

[0044] The aforementioned printed product inspection device uses several infrared detectors 30 spaced apart on each mounting frame 11. When the product 200 passes a preset position, the infrared rays emitted by the multiple infrared detectors 30 illuminate the product. Figure 1 The edge or cut line 210 of product 200 is analyzed to obtain the data of each dimension of product 200 in the first direction. The data is compared with the standard data to determine whether the dimensions of product 200 in the first direction are qualified. Product 200 continues to be transported downstream along the transport mechanism 20. The scanning camera 40 then detects the image quality and dimensions of product 200 in the second direction to determine whether product 200 is qualified. If the infrared detection component 30 and the scanning camera 40 determine that a product is unqualified, the rejection mechanism 50 will reject the product 200 downstream. Unqualified product 200 will not flow into subsequent processing. The whole process does not require manual intervention and can accurately detect the dimensions of product 200 in the first direction and the dimensions in the second direction. At the same time, it can detect the defects and positions of printed patterns, improve production efficiency, and increase the pass rate of product 200. When the infrared radiation of the downstream infrared detector 30 is blocked, the system recognizes that the product 200 has reached the preset position. The other infrared detectors 30 start to detect the corresponding edge or blade line 210 position, calculate the distance, and determine whether the deviation value is within the tolerance range, so as to determine whether the size of the product 200 in the first direction is qualified.

[0045] Optionally, a mounting slot (not labeled) extending along a first direction is provided on the mounting bracket 11, and the infrared detection element 30 is installed in the mounting slot at the same height as the product 200 placed on the transport mechanism 20, so that the infrared can identify the product 200.

[0046] Specifically, such as Figure 1 and Figure 3 As shown ( Figure 3 (The arrows in the image represent infrared light). The product 200 has two outer edges 230 with a spacing of A at both ends in the first direction. The outer edges 230 extend along the second direction. At least one mounting bracket 11 has two infrared detection elements 30 with a spacing of A at a preset position. With the above configuration, the overall length of the product 200 in the first direction can be measured.

[0047] Optionally, such as Figure 1 and Figure 3 As shown, the product 200 forms a plurality of protrusions 220 protruding in a second direction. Each protrusion 220 forms an inner edge 221 extending in the second direction. An infrared detector 30 is provided on the product 200 at a preset position corresponding to each inner edge 221. Thus, the dimensions of each inner edge 221 to the outer edge 230 and the dimensions of each protrusion 220 can be confirmed.

[0048] Optionally, such asFigure 1 and Figure 3 As shown, the product 200 forms multiple cutting lines 210 along the second direction, and an infrared detector 30 is provided at a preset position for each cutting line 210 on the product 200. Through this arrangement, it is possible to detect whether the position of the cutting lines 210 is qualified.

[0049] In this embodiment, along the transport direction (i.e.) Figure 2 Sixteen infrared detectors 30 are provided on the right side (in the middle + X direction), and nine infrared detectors 30 are provided on the left side along the transport direction. In other embodiments, the number of infrared detectors 30 provided on each mounting frame 11 can be adapted to different characteristics of the product 200, and is not limited here.

[0050] Optionally, the frame 10 also includes a gravity detection element 12 and a bottom support frame 13. The gravity detection element 12 is disposed between the bottom support frame 13 and the mounting frame 11, and the gravity detection element 12 is communicatively connected to the rejection mechanism 50. Through the above configuration, the weight of the product 200 can be measured, thereby identifying products 200 that may have had waste material not completely removed in the previous stage. Such products 200 are then classified as defective and subsequently removed from the transport mechanism 20 by the rejection mechanism 50.

[0051] Specifically, at least one end of the mounting bracket 11 is provided with a gravity detection element 12 between it and the bottom support frame 13. In this embodiment, the bottom support frame 13 has four upward-facing legs, and a gravity detection element 12 is provided between each leg and the corresponding mounting bracket 11 to ensure the balance of the mounting bracket 11.

[0052] Optionally, such as Figure 2 As shown, the rejection mechanism 50 includes a rotary drive 51, a telescopic drive 52, and an adsorption component 53. The rotary drive 51 is mounted on the frame 10. The telescopic drive 52 is connected to the output end of the rotary drive 51 via a bending frame 54. The adsorption component 53 is connected to a vacuum pump and to the output end of the telescopic drive 52. The rotary drive 51 can drive the telescopic drive 52 to rotate, and the telescopic drive 52 can drive the adsorption component 53 to move closer to or away from the transport mechanism 20. With the above settings, when product 200 is detected as a defective product 200 upstream, the telescopic drive 52 drives the adsorption component 53 to approach product 200 and adsorb product 200. Then, the rotation drive 51 drives the bending frame 54 and the telescopic drive 52 to rotate, so that the adsorption component 53 moves away from the transport mechanism 20. A waste receiving box is set on the side, and the adsorption component 53 releases product 200, completing the waste rejection. Then, the rotation drive 51 drives the bending frame 54, the telescopic drive 52 and the adsorption component 53 to reset, waiting for the next defective product 200 to be detected.

[0053] Optionally, such asFigure 2 As shown, two rejection mechanisms 50 are arranged at intervals in the second direction and are arranged one-to-one with the mounting bracket 11, which can adapt to the high-speed transmission of products 200. The two rejection mechanisms 50 work alternately to improve rejection efficiency.

[0054] Optionally, such as Figure 2 As shown, the scanning camera 40 is mounted on the telescopic drive component 52 or the rotary drive component 51. This configuration eliminates the need for a frame, and the imaging range of the scanning camera 40 is positioned upstream, allowing the rejection mechanism 50 sufficient reaction time and ensuring continuous operation of the device.

[0055] In other embodiments, a separate rack may be provided to mount the scanning camera 40, which is not limited here.

[0056] Optionally, such as Figure 2 As shown, a finished product placement rack 60 is provided downstream of the frame 10. The finished product placement rack 60 is positioned lower than the mounting frame 11. An inclined conveyor belt 70 is provided between the downstream end of the transport mechanism 20 and the finished product placement rack 60. With the above arrangement, qualified products 200 can fall onto the finished product placement rack 60 via the conveyor belt 70 for stacking, making it convenient to take away multiple qualified products 200 at once.

[0057] Optionally, the transport mechanism 20 includes a plurality of transport rollers 21 spaced apart in a first direction. The transport rollers 21 extend along a second direction and are pivotally connected at both ends to two mounting frames 11 in a one-to-one correspondence. The transport mechanism 20 also includes a drive member, which is mounted on the frame 10. The output end of the drive member is coaxially fixed to one end of one of the transport rollers 21. The adjacent transport rollers 21 are driven by gear meshing to realize the transport of the product 200.

[0058] In other embodiments, conveyor belts or similar methods may be used, which are not limited here.

[0059] This embodiment also provides a product packaging production line, including the aforementioned printed product inspection device. By employing the aforementioned printed product inspection device, the product packaging production line ensures accurate 200-dimensional measurement of inspected products, a high pass rate, and high customer satisfaction.

[0060] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A printing product testing device, characterized in that, include: The frame (10) includes two mounting brackets (11) disposed on the top, the mounting brackets (11) extending along a first direction, the two mounting brackets (11) being spaced apart in a second direction, the first direction being perpendicular to the second direction; A transport mechanism (20) is disposed between the two mounting brackets (11), and the transport mechanism (20) is configured to transport the product (200) along the first direction; Infrared detection element (30), a plurality of infrared detection elements (30) are spaced apart on each of the mounting brackets (11), the infrared detection elements (30) are configured to emit infrared rays along the second direction and identify the position of the edge or tangent of the product (200) in a preset position to identify the various dimensions of the product (200) in the first direction; A scanning camera (40) is mounted on the frame (10) and located downstream of the infrared detector (30). The scanning camera (40) is configured to acquire an image of the product (200), determine whether the printed image of the product (200) is defective, and measure the size of the product (200) in the second direction. A rejection mechanism (50) is disposed on the frame (10), the rejection mechanism (50) is communicatively connected to the infrared detector (30) and the scanning camera (40), and is configured to remove defective products from the transport mechanism (20).

2. The printing product testing device according to claim 1, characterized in that, The product (200) has two outer edges (230) with a spacing of A at both ends in the first direction. The outer edges (230) extend along the second direction. At least one of the mounting brackets (11) is provided with two infrared detection elements (30) with a spacing of A at the preset position.

3. The printing product testing device according to claim 2, characterized in that, The product (200) forms a plurality of protrusions (220) protruding in the second direction, each of the protrusions (220) forming an inner edge (221) extending in the second direction, and an infrared detection element (30) is provided on the product (200) at the preset position corresponding to each of the inner edges (221).

4. The printing product testing device according to claim 2, characterized in that, The product (200) forms a plurality of cutting lines (210) along the second direction, and an infrared detection element (30) is provided on the product (200) at the preset position corresponding to each of the cutting lines (210).

5. The printing product testing device according to any one of claims 1-4, characterized in that, The frame (10) also includes a gravity detection component (12) and a bottom support frame (13). The gravity detection component (12) is disposed between the bottom support frame (13) and the mounting frame (11). The gravity detection component (12) is communicatively connected to the rejection mechanism (50).

6. The printing product testing device according to claim 5, characterized in that, The gravity detection element (12) is disposed between one end of at least one of the mounting brackets (11) and the bottom support frame (13).

7. The printing product testing device according to any one of claims 1-4, characterized in that, The rejection mechanism (50) includes: A rotary drive component (51) is mounted on the frame (10); The telescopic drive (52) is connected to the output end of the rotary drive (51) via a bending frame (54); The adsorption element (53) is connected to the vacuum pump and to the output end of the telescopic drive element (52). The rotary drive element (51) can drive the telescopic drive element (52) to rotate. The telescopic drive element (52) can drive the adsorption element (53) to move closer to or away from the transport mechanism (20).

8. The printing product testing device according to claim 7, characterized in that, Two rejection mechanisms (50) are spaced apart in the second direction and are arranged in a one-to-one correspondence with the mounting bracket (11); and / or The scanning camera (40) is mounted on the telescopic drive (52) or the rotary drive (51).

9. The printing product testing device according to claim 1, characterized in that, A finished product placement rack (60) is provided downstream of the frame (10), the finished product placement rack (60) is set lower than the mounting frame (11), and an inclined conveyor belt (70) is provided between the downstream end of the transport mechanism (20) and the finished product placement rack (60).

10. A product packaging production line, characterized in that, Includes the printed product testing device as described in any one of claims 1-9.

Images