An industrial image preprocessing device

Abstract

The utility model belongs to the image processing technical field, concretely is a kind of industrial image preprocessing device, including conveyer belt;Conveyer belt side wall symmetry is fixedly connected with a pair of side plate;One side The top of side plate is fixedly connected with fixed frame;The middle part of fixed frame is fixedly connected with fixed plate;The fixed plate is arc structure;Multiple industrial cameras are installed in the bottom of fixed plate;Flash is installed in the industrial camera;The flash is different color fluorescent tube;Through above-mentioned structure, set up conveyer belt with fixed plate and industrial camera, cooperate and use flash, can be through the light of different wavelength of flash to the material imaging below, and through different angle and field of vision, can improve the accuracy of different appearance packaging visual detection, to reduce the different appearance in packaging material has the reflection or complex texture, even in color and pattern similar difficult to distinguish situation.

Description

Technical Field

[0001] This utility model belongs to the field of image processing technology, specifically an industrial image preprocessing device. Background Technology

[0002] Industrial image acquisition refers to the process of acquiring image information of objects through various image acquisition devices during industrial production, manufacturing, and inspection, in order to conduct subsequent analysis, processing, and decision-making.

[0003] Industrial image acquisition systems typically consist of components such as industrial cameras, image acquisition cards, and vision sensors. By acquiring images of the product surface, image processing algorithms are used to detect defects, scratches, cracks, and other flaws on the product surface, so that defective products can be removed in a timely manner. During long-term use and observation, it was found that when acquiring images of packaging materials, different products may have reflective or complex textures on the packaging materials, or even be similar in color and pattern, making it difficult to distinguish them.

[0004] Therefore, this utility model provides an industrial image preprocessing device. Utility Model Content

[0005] To overcome the shortcomings of the prior art and solve at least one of the problems mentioned in the background art, an industrial image preprocessing device is proposed.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: An industrial image preprocessing device of this utility model includes a conveyor belt; a pair of side plates are symmetrically fixed to the side wall of the conveyor belt; a fixing frame is fixed to the top of one side plate; a fixing plate is fixed to the middle of the fixing frame; the fixing plate has an arc-shaped structure; multiple industrial cameras are installed at the bottom of the fixing plate; a flash lamp is installed inside the industrial camera; the flash lamp is a tube of different colors; through the above structure, the conveyor belt, fixing plate, and industrial camera are set up, and the flash lamp is used in conjunction. Different wavelengths of light emitted by the flash lamp can be used to image the material below, and through different angles and fields of view, the accuracy of visual inspection of packaging of different qualities can be improved, thereby reducing the difficulty in distinguishing different qualities due to reflective or complex textures in the packaging material, or even similar colors and patterns.

[0007] Preferably, a cylinder is fixedly connected to the side wall of one side plate; a push plate is fixedly connected to the end of the cylinder; a through groove is opened on the side wall of the other side plate; the through groove is correspondingly arranged with the push plate; a collection box is placed on the side wall of the side plate; the collection box is close to the through groove; with the above structure, the cylinder and push plate, together with the through groove and collection box, can facilitate the timely removal and collection of unqualified materials when they are detected, thereby improving the convenience of handling unqualified materials.

[0008] Preferably, a screw is threadedly connected to the middle of the side plate; a guide plate is rotatably connected to the end of the screw; a pair of fixed rods are fixedly connected to the middle of the guide plate; the fixed rods are slidably connected to the middle of the side plate; with the above structure, the screw, guide plate and fixed rods can be used to center and guide the material conveyed by the conveyor belt, so as to improve the stability of the material's position when passing under the fixed plate, thereby improving the effect of image acquisition and reducing the situation where the material position is random, causing the image acquisition angle to deviate and affecting the accuracy.

[0009] Preferably, a baffle is rotatably connected inside the through groove; the baffle is hinged inside the through groove by a torsion spring; with the above structure, the baffle is connected to the through groove, and the through groove can be opened and closed to reduce the occurrence of normal materials falling from the through groove during transportation, thereby improving the stability of materials during transportation.

[0010] Preferably, a support frame is fixedly connected to the bottom of the side plate; a scraper is fixedly connected to the top of the support frame; and a collection hopper is placed on the top of the support frame. With the above structure, the support frame, scraper, and collection hopper can be used to scrape the surface of the conveyor belt to reduce the adhesion of dust or material debris and other impurities to the surface of the conveyor belt, which would cause dirt and make cleaning inconvenient.

[0011] Preferably, a plurality of rollers are installed on the side wall of the guide plate; the plurality of rollers are evenly distributed on the side wall of the guide plate; through the above structure, the rollers are connected to the guide plate, which can reduce the friction between the material and the guide plate, thereby improving the smoothness of material movement and reducing the occurrence of jamming.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. The industrial image preprocessing device of this utility model, by setting up a conveyor belt, a fixed plate and an industrial camera, and using a flash lamp, can image the material below by emitting light of different wavelengths through the flash lamp, and improve the accuracy of visual inspection of packaging of different quality by using different angles and fields of view, so as to reduce the difficulty in distinguishing different quality packaging materials with reflective or complex textures, or even similar colors and patterns.

[0014] 2. The industrial image preprocessing device of this utility model, by setting up a cylinder and a push plate, and cooperating with a through groove and a collection box, can facilitate the timely removal and collection of unqualified materials when they are detected, thereby improving the convenience of processing unqualified materials. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a perspective view of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the fixing frame in this utility model;

[0018] Figure 3 This is a schematic diagram of the conveyor belt structure in this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the collection hopper in this utility model.

[0020] Legend:

[0021] 1. Conveyor belt; 11. Side plate; 12. Fixing frame; 13. Fixing plate; 14. Industrial camera; 15. Flash; 2. Cylinder; 21. Push plate; 22. Through groove; 23. Collection box; 3. Screw; 31. Guide plate; 32. Fixing rod; 4. Baffle; 5. Support frame; 51. Scraper; 52. Collection hopper; 6. Roller; 7. Sensor. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Specific implementation examples are given below.

[0024] like Figures 1 to 2As shown in the embodiment of this utility model, an industrial image preprocessing device includes a conveyor belt 1; a pair of side plates 11 are symmetrically fixed to the side wall of the conveyor belt 1; a fixing frame 12 is fixed to the top of one side plate 11; a fixing plate 13 is fixed to the middle of the fixing frame 12; the fixing plate 13 has an arc-shaped structure; multiple industrial cameras 14 are installed at the bottom of the fixing plate 13; flash lamps 15 are installed inside the industrial cameras 14; the flash lamps 15 are different colored lamp tubes; during operation, the conveyor belt 1 is started to rotate, and then the material is placed on the surface of the conveyor belt 1 and conveyed to one side of the fixing frame 12. When the material passes under the fixing plate 13, the multiple industrial cameras 14 will emit light from multiple... The system captures images of the material below from various angles, while simultaneously using flashlights 15 of different colors to illuminate the material. This generates light of different wavelengths, which images the object being transported. The captured images are then transmitted to a display and computing analysis device for comparative analysis. Through the above structure, the conveyor belt 1, the fixed plate 13, and the industrial camera 14 are set up. With the use of flashlights 15, different wavelengths of light emitted by the flashlights 15 can image the material below. By using different angles and fields of view, the accuracy of visual inspection of packaging of different types can be improved, reducing the difficulty in distinguishing different types of packaging materials that have reflective or complex textures, or even those that are similar in color and pattern.

[0025] like Figure 1 and Figure 3 As shown, a cylinder 2 is fixedly connected to the side wall of one side plate 11; a push plate 21 is fixedly connected to the end of the cylinder 2; a through groove 22 is opened on the side wall of the other side plate 11; the through groove 22 is correspondingly arranged with the push plate 21; a collection box 23 is placed on the side wall of the side plate 11; the collection box 23 is close to the side of the through groove 22; during operation, if unqualified material is found during inspection, the cylinder 2 can be controlled to stretch and drive the push plate 21 to move towards the through groove 22, at which time the push plate 21 will push the unqualified material out of the through groove 22. The material is pushed out of the slot 22 and falls into the collection box 23 on one side of the side plate 11 for collection. Then the cylinder 2 retracts and drives the push plate 21 to reset. After collection is completed, the collection box 23 can be removed and the material inside can be taken out for centralized processing. Then the collection box 23 is reset. With the above structure, the cylinder 2 and push plate 21 are set up in conjunction with the slot 22 and collection box 23, so that when unqualified materials are detected, the unqualified materials can be removed and collected in time, thereby improving the convenience of handling unqualified materials.

[0026] like Figure 3As shown, a screw 3 is threadedly connected to the middle of the side plate 11; a guide plate 31 is rotatably connected to the end of the screw 3; a pair of fixed rods 32 are fixedly connected to the middle of the guide plate 31; the fixed rods 32 are slidably connected to the middle of the side plate 11; during operation, when the material is conveyed on the surface of the conveyor belt 1, it will pass between the guide plates 31, and then the guide plates 31 will guide the material to the center position of the conveyor belt 1. When different materials have different sizes, the screw 3 can be rotated in the forward or reverse direction, thereby driving the two guide plates 31 to move closer or further apart, thus adapting to materials of different sizes. Through the above structure, the screw 3, guide plate 31 and fixed rods 32 are set to center and guide the material conveyed on the conveyor belt 1, so as to improve the stability of the material position when passing under the fixed plate 13, thereby improving the image acquisition effect and reducing the situation where the material position is in a random position, which causes the image acquisition angle to deviate and affects the accuracy.

[0027] like Figure 1 As shown, a baffle 4 is rotatably connected inside the through groove 22; the baffle 4 is hinged inside the through groove 22 by a torsion spring; during operation, after the baffle 4 is installed inside the through groove 22, when the cylinder 2 drives the push plate 21 to push the material out of the through groove 22, it will squeeze the baffle 4 to rotate and then open the through groove 22. At this time, the material will be pushed out of the through groove 22 and fall into the collection box 23. When the push plate 21 is reset, the baffle 4 will rebound under the action of the torsion spring and close the through groove 22. Through the above structure, the baffle 4 is set to connect the through groove 22, and the through groove 22 can be opened and closed to reduce the situation of normal material falling from the through groove 22 during transportation, thereby improving the stability of the material during transportation.

[0028] like Figure 1 and Figure 4 As shown, a support frame 5 is fixedly connected to the bottom of the side plate 11; a scraper 51 is fixedly connected to the top of the support frame 5; and a collection hopper 52 is placed on the top of the support frame 5. During operation, when the conveyor belt 1 rotates in a cycle, the scraper 51 will contact the surface of the conveyor belt 1 and can scrape the surface of the conveyor belt 1 while it rotates, thereby scraping off the residual dust and material debris, which will fall into the collection hopper 52 and be collected. Through the above structure, the support frame 5, the scraper 51, and the collection hopper 52 are set up so that the surface of the conveyor belt 1 can be scraped by the scraper 51 to reduce the situation where dust or material debris and other impurities adhere to the surface of the conveyor belt 1, causing dirt and inconvenience in cleaning.

[0029] like Figure 3As shown, multiple rollers 6 are installed on the side wall of the guide plate 31; the multiple rollers 6 are evenly distributed on the side wall of the guide plate 31; during operation, when the guide plate 31 guides the material, the material will contact the rollers 6 on the side of the guide plate 31. At this time, the rollers 6 will rotate and convert the sliding friction between the guide plate 31 and the material into rolling friction. Through the above structure, the rollers 6 are connected to the guide plate 31, which can reduce the friction between the material and the guide plate 31, thereby improving the smoothness of material movement and reducing the occurrence of jamming.

[0030] like Figure 1 As shown, a sensor 7 is installed on the side wall of the side plate 11. During operation, when the material passes through the sensor 7, the sensor 7 senses the material signal and transmits it to the control unit. At this time, the speed of the conveyor belt 1 can be reduced, and then the material passes under the industrial camera 14 to be captured. Through the above structure, setting the sensor 7 can facilitate the reduction of the speed of the conveyor belt 1 when capturing images of the material, thereby improving the clarity of the captured material images.

[0031] Working Principle: The conveyor belt 1 is started and rotated. Material is placed on the surface of the conveyor belt 1 and conveyed towards the fixed frame 12. When the material passes under the fixed plate 13, multiple industrial cameras 14 capture images of the material from multiple angles. Simultaneously, different colored flashlights 15 illuminate the material, generating light of different wavelengths to image the conveyed object. The captured images are then transmitted to a display and analysis device for comparison and analysis. If any defective material is detected, the cylinder 2 is stretched, causing the push plate 21 to move towards the channel 22. The push plate 21 pushes the defective material out of the channel 22, where it falls into the collection box 23 on the side plate 11 for collection. Then, the cylinder 2 retracts, causing the push plate 21 to reset. After collection, the collection box 23 is removed, and the material inside is taken out for centralized processing. The collection box 23 is then reset. When the material is conveyed on the surface of the conveyor belt 1, it passes between guide plates 31, which guide the material towards the center of the conveyor belt 1. When different materials have different sizes, the material can be guided in either the forward or reverse direction. Rotating the screw 3 causes the guide plates 31 on both sides to move closer or further apart, thus accommodating materials of different sizes. After the baffle 4 is installed in the through groove 22, when the cylinder 2 drives the push plate 21 to push the material out of the through groove 22, it will squeeze the baffle 4 to rotate, thus opening the through groove 22. At this time, the material will be pushed out of the through groove 22 and fall into the collection box 23. When the push plate 21 returns to its original position, the baffle 4 will rebound under the action of the torsion spring, thus closing the through groove 22. When the conveyor belt 1 rotates in a cycle, the scraper 51 will contact the surface of the conveyor belt 1. As the conveyor belt 1 rotates, its surface is scraped to remove residual dust and material debris, which then fall into the collection hopper 52 and are collected. When the guide plate 31 guides the material, the material comes into contact with the roller 6 on the side of the guide plate 31. At this time, the roller 6 will rotate and change the sliding friction between the guide plate 31 and the material into rolling friction. When the material passes the sensor 7, the sensor 7 senses the material signal and transmits it to the control unit. At this time, the speed of the conveyor belt 1 can be reduced, and then the image is captured under the industrial camera 14.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An industrial image preprocessing device comprising a conveyor belt (1); characterized in that: The conveyor belt (1) has a pair of side plates (11) symmetrically fixed to its side wall; a fixing frame (12) is fixed to the top of one side plate (11); a fixing plate (13) is fixed to the middle of the fixing frame (12); the fixing plate (13) has an arc-shaped structure; multiple industrial cameras (14) are installed at the bottom of the fixing plate (13); a flash lamp (15) is installed inside the industrial camera (14); the flash lamp (15) is a lamp tube of different colors.

2. The industrial image preprocessing device according to claim 1, characterized in that: A cylinder (2) is fixedly connected to the side wall of one side plate (11); a push plate (21) is fixedly connected to the end of the cylinder (2); a through groove (22) is opened on the side wall of the other side plate (11); the through groove (22) is correspondingly arranged with the push plate (21); a collection box (23) is placed on the side wall of the side plate (11); the collection box (23) is close to the through groove (22).

3. The industrial image preprocessing device according to claim 1, characterized in that: A screw (3) is threadedly connected to the middle of the side plate (11); a guide plate (31) is rotatably connected to the end of the screw (3); a pair of fixing rods (32) are fixedly connected to the middle of the guide plate (31); the fixing rods (32) are slidably connected to the middle of the side plate (11).

4. The industrial image preprocessing device according to claim 2, characterized in that: A baffle (4) is rotatably connected inside the through groove (22); the baffle (4) is hinged inside the through groove (22) by a torsion spring.

5. The industrial image pre-processing apparatus according to claim 1, characterized in that: A support frame (5) is fixedly connected to the bottom of the side plate (11); a scraper (51) is fixedly connected to the top of the support frame (5); and a collection hopper (52) is placed on the top of the support frame (5).

6. The industrial image pre-processing apparatus according to claim 3, wherein: The guide plate (31) has a plurality of rollers (6) installed on its side wall; the plurality of rollers (6) are evenly distributed on the side wall of the guide plate (31).

7. The industrial image preprocessing apparatus according to claim 1, characterized in that: A sensor (7) is installed on the side wall of the side plate (11).

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