Printing quality detection device based on optical identification technology

Abstract

The utility model relates to the technical field of printing quality detection, in particular to a printing quality detection device based on an optical identification technology, which comprises a transmission mechanism, the transmission mechanism is arranged between opposite sides of a baffle plate, and a support frame is welded in the middle of the top of the baffle plate. An electric telescopic rod a vertically penetrates through the middle of the top of the supporting frame, a protection box is arranged at the bottom end of the electric telescopic rod a, an image collector is clamped in the protection box, electric telescopic rods b vertically penetrate through the left side and the right side of the top of the supporting frame, and light sources are arranged at the bottom ends of the electric telescopic rods b. A plurality of supporting bottom boxes are arranged at the top of the conveying mechanism, and adsorption mechanisms are arranged in the supporting bottom boxes. According to the improved detection device, the light source ensures that light is uniformly irradiated to each part of the printed matter, so that image information on the printed matter is clearly collected and identified, and the adsorption mechanism can firmly adsorb and fix the printed matter to prevent the printed matter from position deviation and influence on a detection result.

Description

Technical Field

[0001] The utility model relates to the technical field of printing quality detection, in particular to a printing quality detection device based on optical recognition technology. Background Art

[0002] Printing quality inspection refers to the process of inspecting and evaluating the quality of printed products through certain technical means and methods. The purpose of printing quality inspection is to ensure that the quality of printed products meets the standards and meets the needs of customers. In printing quality inspection, the color, clarity, overprint accuracy, dot reproduction and other aspects of printed products are usually involved. Printing quality inspection usually includes two methods: manual inspection and automatic inspection. Manual inspection refers to observing and evaluating printed products with the naked eye, while automatic inspection is carried out through some machines and equipment.

[0003] Optical recognition technology is an application technology based on computer image processing technology. It refers to converting image information into electrical signals through an optical imaging system, and then processing and recognizing it through a computer to achieve automatic analysis and processing of image information. Optical recognition technology is widely used in various fields and can help people identify various information more clearly, thereby improving work efficiency and accuracy.

[0004] In the process of realizing the utility model, the inventors found that the prior art had the following problems: 1. The existing printed matter detection devices often simply collect image information of the printed matter, and when the light is dim, the image information will be difficult to identify; 2. The existing automatic printed matter detection device uses a transmission device, and placing the printed matter directly on the transmission device will often cause the position of the printed matter to shift due to external reasons such as mechanical vibration, thereby affecting the final detection result. Utility Model Content

[0005] The purpose of the utility model is to provide a printing quality detection device based on optical recognition technology to solve the problem that the existing printed product detection device proposed in the above background technology often simply collects image information of the printed product, and when the light is dim, its image information will be difficult to recognize, and the existing automatic printed product detection device will use a transmission device, and the printed product is directly placed on the transmission device, which often causes the position of the printed product to shift due to external reasons such as mechanical vibration, thereby affecting the final detection result. To achieve the above purpose, the utility model provides the following technical solutions: a printing quality detection device based on optical recognition technology, including a transmission mechanism, the transmission mechanism is arranged between the opposite sides of the baffle, a support frame is welded to the middle of the top of the baffle, an electric telescopic rod a is vertically penetrated in the middle of the top of the support frame, a protection box is provided at the bottom end of the electric telescopic rod a, an image collector is clamped inside the protection box, electric telescopic rods b are vertically penetrated on the left and right sides of the top of the support frame, a light source is provided at the bottom end of the electric telescopic rod b, a plurality of supporting bottom boxes are provided on the top of the transmission mechanism, and an adsorption mechanism is provided inside the supporting bottom box.

[0006] Further preferably, the transmission mechanism consists of a transmission main shaft, a transmission slave shaft, a drive motor and a belt, wherein the transmission main shaft and the transmission slave shaft are rotatably connected to the outer walls on opposite sides of the baffle, the belt is sleeved on the outer walls of the shafts of the transmission main shaft and the transmission slave shaft, and the drive motor is plugged into one end of the transmission main shaft.

[0007] Further preferably, a wiring terminal is provided on an outer wall of one side of the image collector, and a transmission wire is inserted inside the wiring terminal to connect with an external computer.

[0008] Further preferably, the light source consists of a light source body and a fixed lamp holder, wherein the top of the fixed lamp holder is screwed to the bottom end of the electric telescopic rod b, and the light source body is installed on the left and right sides of the bottom of the fixed lamp holder.

[0009] Further preferably, the supporting bottom box is composed of a box body, a through-hole cover plate and an air ducting hopper, wherein the box body is arranged on the top of the belt, the through-hole cover plate is embedded in the top opening of the box body, and the top end of the air ducting hopper is arranged on the through-hole cover plate and serves as the bottom.

[0010] Further preferably, the adsorption mechanism consists of an air pump, an air suction pipe and an exhaust pipe, wherein the air pump is arranged at the center of the bottom wall of the box body, the air suction pipe is plugged into the air inlet of the air pump, one end of the exhaust pipe is plugged into the exhaust port of the air pump, and the other end is plugged into one side inner wall of the box body.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] In the utility model, according to the characteristics of the printed matter, a light source with a suitable color temperature is turned on so that all parts of the printed matter are illuminated, and then the electric telescopic rod b is driven by an external controller to drive the distance between the light source body and the printed matter to ensure that the light can be evenly irradiated to all parts of the printed matter, and at the same time, the electric telescopic rod a is driven to adjust the distance between the image collector and the light source and the printed matter. After that, the lens on the image collector will collect the image information on the printed matter, and convert it into an electrical signal and transmit it to an external computer through a transmission wire plugged into the terminal. Then, the image processing software in the computer processes and analyzes it, thereby extracting the characteristic information of the printed matter and comparing it with the standard image, so as to realize the detection and evaluation of the quality of the printed matter.

[0013] In the utility model, the printed matter is laid flat on the through-hole cover plate, and all the through-holes opened on the surface of the through-hole cover plate are covered. Then the vacuum pump is started, so that the vacuum pump draws all the air originally existing in the air hopper through the vacuum pipe arranged between the vacuum pump and the air hopper, and discharges the air to the outside of the box body through the exhaust pipe, so that the printed matter covered on the through-holes on the surface of the through-hole cover plate is firmly adsorbed and fixed on the top of the through-hole cover plate, thereby preventing the printed matter from being shifted in position during the transmission and detection process, thereby affecting the final detection result. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the side cross-sectional structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the adsorption mechanism of the utility model;

[0017] Figure 4 This is a schematic diagram of the light source structure of the utility model;

[0018] Figure 5 It is a schematic diagram of the transmission mechanism of the utility model.

[0019] In the figure: 1. transmission mechanism; 101. transmission main shaft; 102. transmission slave shaft; 103. driving motor; 104. belt; 2. baffle; 3. supporting frame; 4. electric telescopic rod a; 5. protection box; 6. image collector; 601. wiring terminal; 602. transmission wire; 7. electric telescopic rod b; 8. light source; 801. light source body; 802. fixed lamp holder; 9. supporting bottom box; 901. box body; 902. through-hole cover plate; 903. air duct hopper; 10. adsorption mechanism; 1001. vacuum pump; 1002. vacuum pipe; 1003. exhaust pipe. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 5 The utility model provides a technical solution: a printing quality detection device based on optical recognition technology, including a transmission mechanism 1, which is arranged between opposite sides of a baffle 2, a support frame 3 is welded to the middle of the top of the baffle 2, an electric telescopic rod a4 is vertically penetrated through the middle of the top of the support frame 3, a protection box 5 is provided at the bottom end of the electric telescopic rod a4, an image collector 6 is clamped inside the protection box 5, electric telescopic rods b7 are vertically penetrated on the left and right sides of the top of the support frame 3, a light source 8 is provided at the bottom end of the electric telescopic rod b7, a plurality of supporting bottom boxes 9 are provided on the top of the transmission mechanism 1, and an adsorption mechanism 10 is provided inside the supporting bottom box 9.

[0022] In this embodiment, Figure 1 and Figure 5 As shown, the transmission mechanism 1 is composed of a transmission main shaft 101, a transmission slave shaft 102, a driving motor 103 and a belt 104, wherein the transmission main shaft 101 and the transmission slave shaft 102 are rotatably connected to the outer wall of the opposite side of the baffle 2, the belt 104 is sleeved on the outer wall of the shaft of the transmission main shaft 101 and the transmission slave shaft 102, and the driving motor 103 is plugged into one end of the transmission main shaft 101; it should be noted that the operator first lays the printed matter to be detected flat on the top of the supporting bottom box 9, and passes the adsorption mechanism 10 to place it. At the same time, the operator can start the driving motor 103 to make its output end start to rotate and drive the connected transmission main shaft 101 to start rotating. The transmission main shaft 101 converts the rotational force into linear motion through the belt 104 sleeved on the outer wall of the transmission slave shaft 102, and makes the supporting bottom box 9 on the top of the belt 104 be transmitted together with the printed matter to the bottom of the image collector 6 and the light source 8, and start the inspection operation for the quality of the printed matter.

[0023] In this embodiment, Figure 2 and Figure 4As shown, a terminal 601 is provided on one side outer wall of the image collector 6, and a transmission wire 602 is plugged into the inside of the terminal 601 to connect to an external computer; it should be noted that after the printed matter adsorbed and fixed on the top of the supporting bottom box 9 is transmitted to the bottom of the image collector 6 by the transmission mechanism 1, its operator can turn on the appropriate light source 8 according to the characteristics of the printed matter, so that all parts of the printed matter are illuminated, and then drive the electric telescopic rod a4 through the external controller to adjust the distance between it and the light source 8 and the printed matter, and then collect the image information on the printed matter through the lens on the image collector 6, and convert it into an electrical signal and transmit it to the external computer through the transmission wire 602 plugged into the inside of the terminal 601, and then process and analyze it by the image processing software in the computer, so as to extract the characteristic information of the printed matter and compare it with the standard image, so as to realize the detection and evaluation of the quality of the printed matter.

[0024] In this embodiment, Figure 4 As shown, the light source 8 is composed of a light source body 801 and a fixed lamp holder 802, wherein the top of the fixed lamp holder 802 is screwed to the bottom end of the electric telescopic rod b7, and the light source body 801 is installed on the left and right sides of the bottom of the fixed lamp holder 802; it should be noted that after the printed matter adsorbed and fixed on the top of the supporting bottom box 9 is transmitted to the bottom of the image collector 6 by the transmission mechanism 1, its operator can select a light source 8 with a suitable color temperature according to the characteristics of the printed matter, and drive the electric telescopic rod b7 through an external controller to drive the fixed lamp holder 802 and the light source body 801 screwed thereto, and adjust the distance between the light source body 801 and the printed matter in the vertical direction to ensure that the light can be evenly irradiated to various parts of the printed matter, so that the image information on the printed matter can be clearly collected and identified by the image collector 6.

[0025] In this embodiment, Figure 3As shown, the supporting bottom box 9 is composed of a box body 901, a through-hole cover plate 902 and an air hopper 903, wherein the box body 901 is arranged on the top of the belt 104, the through-hole cover plate 902 is embedded in the top opening of the box body 901, and the top of the air hopper 903 is arranged on the through-hole cover plate 902 and the bottom; it should be noted that in the past, when the printed matter was transmitted and detected, because the printed matter itself was placed on the surface of the machine, it was easily affected by mechanical vibration, which would cause its position to shift, affecting the final image acquisition and recognition. Therefore, in the present utility model, the supporting bottom box 9 and the adsorption mechanism 10 are designed. , used to place and fix the position of the printed matter, wherein the supporting bottom box 9 can lay the printed matter flat on the top of the through-hole cover plate 902 provided thereon, and cover the printed matter on the through-holes opened on its surface. During this period, the vacuum pump 1001 in the adsorption mechanism 10 is started, and the air originally existing between the air duct 903 and the printed matter can be completely extracted through the through-holes on the surface of the through-hole cover plate 902 through the vacuum pipe 1002, so that the entire air duct 903 is in a vacuum state, and then the printed matter placed on the through-holes of the through-hole cover plate 902 is firmly adsorbed to fix its position.

[0026] In this embodiment, Figure 3 As shown, the adsorption mechanism 10 is composed of an air pump 1001, an air suction pipe 1002 and an exhaust pipe 1003, wherein the air pump 1001 is arranged at the center of the bottom wall of the box body 901, the air suction pipe 1002 is plugged into the air inlet of the air pump 1001, one end of the exhaust pipe 1003 is plugged into the exhaust port of the air pump 1001, and the other end is plugged into the inner wall of one side of the box body 901; it should be noted that when the operator uses the adsorption mechanism 10 to adsorb and fix the printed matter, the specific operation is that the operator first lays the printed matter flat on the through-hole cover plate 902, and then puts the through-hole cover plate The through holes on the surface of the through-hole cover plate 902 are all covered, and then the vacuum pump 1001 is started, so that the vacuum pump 1001 extracts all the air originally existing in the air hopper 903 through the vacuum pipe 1002 arranged between the vacuum pump 1001 and the air hopper 903, and discharges it to the outside of the box body 901 through the exhaust pipe 1003, so that the printed matter covering the through holes on the surface of the through-hole cover plate 902 is firmly adsorbed and fixed on the top of the through-hole cover plate 902, thereby preventing the printed matter from being shifted in position during the transmission and detection process, thereby affecting the final detection result.

[0027] The use method and advantages of the utility model: The printing quality detection device based on optical recognition technology, when in use, the working process is as follows:

[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, first, the operator lays the printed matter flat on the through-hole cover plate 902 and covers all the through-holes on the surface of the through-hole cover plate 902, and then starts the vacuum pump 1001, and extracts all the air originally existing in the air hopper 903 through the vacuum pipe 1002, and discharges it to the outside of the box body 901 through the exhaust pipe 1003, so that the printed matter covered at the through-holes on the surface of the through-hole cover plate 902 is firmly adsorbed and fixed on the top of the through-hole cover plate 902 to prevent it from position shifting, and then the operator can start the driving motor 103, and through the transmission main shaft 101 and the transmission slave shaft 102, the supporting bottom box 9 arranged on the top of the belt 104 is transmitted together with the printed matter to the bottom of the image collector 6 and the light source 8. At this time, the operator can According to the characteristics of the printed product, a light source 8 with a suitable color temperature is selected, and the electric telescopic rod b7 is driven by an external controller to adjust the distance between the light source body 801 and the printed product in the vertical direction to ensure that the light can be evenly irradiated to all parts of the printed product. During this period, the electric telescopic rod a4 can be driven by an external controller to adjust the distance between the image collector 6 and the light source 8 and the printed product. Then the lens on the image collector 6 will collect the image information on the printed product and convert it into an electrical signal and transmit it to an external computer through the transmission wire 602 plugged into the terminal 601. Then the image processing software in the computer processes and analyzes it, thereby extracting the characteristic information of the printed product and comparing it with the standard image to achieve detection and evaluation of the quality of the printed product.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A printing quality inspection device based on optical recognition technology, comprising a transmission mechanism (1), characterized in that: The transmission mechanism (1) is arranged between opposite sides of the baffle (2); a support frame (3) is welded to the middle of the top of the baffle (2); an electric telescopic rod a (4) vertically penetrates the middle of the top of the support frame (3); a protection box (5) is provided at the bottom end of the electric telescopic rod a (4); an image collector (6) is snapped into the inside of the protection box (5); electric telescopic rods b (7) vertically penetrate the left and right sides of the top of the support frame (3); a light source (8) is provided at the bottom end of the electric telescopic rod b (7); a plurality of supporting bottom boxes (9) are provided at the top of the transmission mechanism (1); an adsorption mechanism (10) is provided inside the supporting bottom box (9).

2. The printing quality detection device based on optical recognition technology according to claim 1, characterized in that: The transmission mechanism (1) comprises a transmission main shaft (101), a transmission slave shaft (102), a driving motor (103) and a belt (104), wherein the transmission main shaft (101) and the transmission slave shaft (102) are both rotatably connected to the outer wall of the opposite side of the baffle (2), the belt (104) is sleeved on the outer wall of the transmission main shaft (101) and the transmission slave shaft (102), and the driving motor (103) is plugged into one end of the transmission main shaft (101).

3. The printing quality detection device based on optical recognition technology according to claim 1, characterized in that: A connection terminal (601) is provided on one side outer wall of the image collector (6), and a transmission wire (602) is inserted inside the connection terminal (601) to connect to an external computer.

4. The printing quality detection device based on optical recognition technology according to claim 1, characterized in that: The light source (8) is composed of a light source body (801) and a fixed lamp holder (802), wherein the top of the fixed lamp holder (802) is screwed to the bottom of the electric telescopic rod b (7), and the light source body (801) is installed on the left and right sides of the bottom of the fixed lamp holder (802).

5. The printing quality detection device based on optical recognition technology according to claim 2, characterized in that: The supporting bottom box (9) is composed of a box body (901), a through-hole cover plate (902) and an air ducting hopper (903), wherein the box body (901) is arranged on the top of the belt (104), the through-hole cover plate (902) is embedded in the top opening of the box body (901), and the top end of the air ducting hopper (903) is arranged on the through-hole cover plate (902) and serves as the bottom.

6. The printing quality detection device based on optical recognition technology according to claim 5, characterized in that: The adsorption mechanism (10) is composed of an air pump (1001), an air suction pipe (1002) and an exhaust pipe (1003), wherein the air pump (1001) is arranged at the center of the bottom wall of the box body (901), the air suction pipe (1002) is plugged into the air inlet of the air pump (1001), one end of the exhaust pipe (1003) is plugged into the exhaust port of the air pump (1001), and the other end is plugged into the inner wall of one side of the box body (901).

Images