Post-printing quality detection device of printing machine

Abstract

The post-printing quality detection device comprises a quality detection device body, limiting plates are fixedly installed at the positions, close to the two ends, of the inner bottom face of the quality detection device body, and a fixing plate is fixedly installed at the position, close to the front end, of the inner bottom face of the quality detection device body. Paper is placed on the bottom face in the quality detection device body, a limiting structure is arranged on the upper surface in the quality detection device body, and the limiting structure comprises a reset spring, a rectangular sliding groove, a circular sliding rod, a rectangular sliding block, a first mounting base, a first shaft rod, a movable rod, a second mounting base, a first sliding block, a T-shaped connecting plate and a pressing plate. According to the post-printing quality detection device of the printing machine, paper can be pressed, the situation that the quality detection device cannot detect the paper due to the fact that the paper stays above due to friction between the paper and the limiting plate is avoided, workers do not need to press the paper downwards manually, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing quality detection, in particular to a post-printing quality detection device of a printing press. Background Art

[0002] A three-color printing press is a commonly used printing equipment for color printing. The three-color printing press is based on the principle of mixing three primary colors. By superimposing different colors of ink layer by layer, the accurate reproduction of the image color is finally achieved. The three-color printing press consists of three printing parts, which are used to print cyan, magenta and yellow respectively. Each printing part is equipped with a printing roller and an impression roller. After the printing of the paper is completed, a quality inspection device is usually used to inspect the printing quality of the printed paper, and the qualified paper is sorted and stored; however, the quality inspection device currently used has no limiting structure above the paper. During the inspection, the paper below will be extracted and inspected, and the paper above will gradually move down. When the width of the paper is equal to the distance between the two limiting plates, the paper above will stay on the top due to the friction between the limiting plates, resulting in the inability of the quality inspection device to inspect the paper. The staff needs to press it down manually, which is time-consuming and labor-intensive. Utility Model Content

[0003] The main purpose of the utility model is to provide a post-printing quality detection device for a printing press, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A post-printing quality inspection device for a printing machine comprises a quality inspection device body, wherein limit plates are fixedly installed on the inner bottom surface of the quality inspection device body near both ends, a fixing plate is fixedly installed on the inner bottom surface of the quality inspection device body near the front end, paper is placed on the inner bottom surface of the quality inspection device body, and a limit structure is arranged on the inner upper surface of the quality inspection device body.

[0006] Preferably, the limiting structure includes a reset spring, a rectangular slide groove, a circular slide rod, a rectangular slider, a No. 1 mounting seat, a No. 1 shaft rod, a movable rod, a No. 2 mounting seat, a No. 1 slider, a T-shaped connecting plate, a pressure plate, a No. 2 shaft rod, a rectangular groove, a No. 1 slide groove, and a handle.

[0007] Preferably, rectangular slide grooves are provided at both ends of the inner upper surface of the quality inspection device body, circular slide rods are fixedly installed in the middle of the two end surfaces of the rectangular slide grooves, a rectangular slider is slidably installed on the outer surface of the circular slide rod, and a reset spring is sleeved on the other end of the rectangular slider on the outer surface of the circular slide rod.

[0008] Preferably, a No. 1 mounting seat is fixedly installed on the lower surface of the rectangular slider, a No. 1 shaft rod is movably installed on the No. 1 mounting seat, a movable rod is fixedly installed on the outer surface of the No. 1 shaft rod, a rectangular groove is opened on the limit plate, and a No. 2 shaft rod is fixedly installed on the middle part of the upper surface of the pressure plate near both ends.

[0009] Preferably, a No. 2 mounting seat is movably mounted on the No. 2 shaft rod, a movable rod is fixedly mounted on the outer surface of the No. 2 mounting seat, a handle is fixedly mounted on the middle of the upper surface of the pressure plate, and T-shaped connecting plates are fixedly mounted on the middle of the surfaces at both ends of the pressure plate.

[0010] Preferably, a No. 1 slider is fixedly mounted on the other end of the T-shaped connecting plate, and a No. 1 slide groove is provided on both end surfaces of the interior of the quality inspection device body, and a No. 1 slider is slidably mounted in the No. 1 slide groove.

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

[0012] In the utility model, the paper can be pressed by the setting of the limiting structure to prevent the paper from staying on the upper side due to the friction between the paper and the limiting plate, causing the quality inspection device to be unable to inspect the paper. The staff does not need to press it down manually, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a post-printing quality detection device for a printing press according to the utility model;

[0014] Figure 2 It is a cross-sectional view of a post-printing quality detection device of a printing press according to the utility model;

[0015] Figure 3 The utility model is a post-printing quality detection device for a printing machine Figure 2 Enlarged view of point A in the middle.

[0016] In the figure: 1. Quality inspection device body; 2. Limiting plate; 3. Fixing plate; 4. Paper; 5. Limiting structure; 501. Return spring; 502. Rectangular slide; 503. Round slide bar; 504. Rectangular slider; 505. Mounting seat No. 1; 506. Axle rod No. 1; 507. Movable rod; 508. Mounting seat No. 2; 509. Slider No. 1; 510. T-type connecting plate; 511. Pressing plate; 512. Axle rod No. 2; 513. Rectangular groove; 514. Sliding slot No. 1; 515. Handle. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] like Figure 1-3 As shown, a post-printing quality inspection device for a printing press comprises a quality inspection device body 1, a limit plate 2 is fixedly installed near both ends of the inner bottom surface of the quality inspection device body 1, a fixing plate 3 is fixedly installed near the front end of the inner bottom surface of the quality inspection device body 1, a paper 4 is placed on the inner bottom surface of the quality inspection device body 1, and a limit structure 5 is arranged on the inner upper surface of the quality inspection device body 1;

[0019] The limiting structure 5 includes a reset spring 501, a rectangular slide 502, a circular slide bar 503, a rectangular slider 504, a No. 1 mounting seat 505, a No. 1 shaft rod 506, a movable rod 507, a No. 2 mounting seat 508, a No. 1 slider 509, a T-shaped connecting plate 510, a pressure plate 511, a No. 2 shaft rod 512, a rectangular groove 513, a No. 1 slide 514, and a handle 515; rectangular slide grooves 502 are provided at both ends of the inner upper surface of the quality inspection device body 1, and circular slide bars 503 are fixedly installed in the middle of the surfaces of both ends of the rectangular slide grooves 502, and a rectangular slider 504 is slidably installed on the outer surface of the circular slide bar 503, and a reset spring 501 is sleeved on the other end of the rectangular slider 504 on the outer surface of the circular slide bar 503; a No. 1 mounting seat 502 is fixedly installed on the lower surface of the rectangular slider 504 05, a shaft rod 506 is movably mounted on the No. 1 mounting seat 505, and a movable rod 507 is fixedly mounted on the outer surface of the No. 1 shaft rod 506, a rectangular groove 513 is provided on the limit plate 2, and a No. 2 shaft rod 512 is fixedly mounted on the middle part of the upper surface of the pressure plate 511 near both ends; a No. 2 mounting seat 508 is movably mounted on the No. 2 shaft rod 512, and a movable rod 507 is fixedly mounted on the outer surface of the No. 2 mounting seat 508, a handle 515 is fixedly mounted on the middle part of the upper surface of the pressure plate 511, and a T-shaped connecting plate 510 is fixedly mounted on the middle part of the surfaces of both ends of the pressure plate 511; a No. 1 slider 509 is fixedly mounted on the other end of the T-shaped connecting plate 510, and a No. 1 slide groove 514 is provided on the inner surfaces of both ends of the quality inspection device body 1, and a No. 1 slider 509 is slidably mounted in the No. 1 slide groove 514.

[0020] It should be noted that the utility model is a post-printing quality inspection device for a printing press. When in use, the handle 515 needs to be pulled upwards first, driving the pressure plate 511 to be pulled upwards, so that the T-shaped connecting plate 510 fixedly installed on the surfaces of both ends of the pressure plate 511 drives the No. 1 slide block 509 to slide upwards in the No. 1 slide groove 514, so that the middle of the upper surface of the pressure plate 511 near the No. 2 mounting seat 508 fixedly installed at both ends moves upwards, so that the lower end of the movable rod 507 drives the No. 2 shaft rod 512 to rotate on the No. 2 mounting seat 508. The movable rod 507 is moved so that the upper end of the movable rod 507 drives the No. 1 shaft rod 506 to rotate on the No. 1 mounting seat 505, and drives the No. 1 mounting seat 505 to move to the other end, so that the rectangular slider 504 fixedly installed on the upper end of the No. 1 mounting seat 505 slides on the outer surface of the circular slide rod 503 toward the other end and squeezes the reset spring 501, and then the paper is placed on the bottom surface of the inner part of the quality inspection device body 1, and then the handle 515 is released. Under the action of the reset spring 501, the pressure plate 511 will press against the paper and move downward as the number of papers decreases.

[0021] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A post-printing quality inspection device for a printing press, characterized in that: The invention comprises a quality inspection device body (1), wherein the inner bottom surface of the quality inspection device body (1) is fixedly installed with limit plates (2) near both ends, the inner bottom surface of the quality inspection device body (1) is fixedly installed with a fixing plate (3) near the front end, the inner bottom surface of the quality inspection device body (1) is provided with paper (4), and the inner upper surface of the quality inspection device body (1) is provided with a limit structure (5), wherein the limit structure (5) comprises a reset spring (501), a rectangular slide groove (502), a circular slide bar (503), a rectangular slide block (504), a No. 1 mounting seat (506), and a plurality of fixing plates (507). 05), No. 1 shaft rod (506), movable rod (507), No. 2 mounting seat (508), No. 1 slider (509), T-shaped connecting plate (510), pressing plate (511), No. 2 shaft rod (512), rectangular groove (513), No. 1 slider (514), handle (515), both ends of the inner upper surface of the quality inspection device body (1) are provided with rectangular sliders (502), the middle part of the two end surfaces of the rectangular slider (502) is fixedly installed with circular sliders (503), and the outer surface of the circular slider (503) is slidably installed with rectangular sliders (504) A return spring (501) is sleeved on the other end of a rectangular slider (504) on the outer surface of the circular slider (503); a No. 1 mounting seat (505) is fixedly mounted on the lower surface of the rectangular slider (504); a No. 1 shaft rod (506) is movably mounted on the No. 1 mounting seat (505); a movable rod (507) is fixedly mounted on the outer surface of the No. 1 shaft rod (506); a rectangular groove (513) is provided on the limit plate (2); a No. 2 shaft rod (512) is fixedly mounted on the middle part of the upper surface of the pressure plate (511) near both ends; A No. 2 mounting seat (508) is movably installed, and a movable rod (507) is fixedly installed on the outer surface of the No. 2 mounting seat (508), a handle (515) is fixedly installed in the middle of the upper surface of the pressing plate (511), and T-shaped connecting plates (510) are fixedly installed in the middle of the surfaces of both ends of the pressing plate (511), and a No. 1 sliding block (509) is fixedly installed on the other end of the T-shaped connecting plate (510), and a No. 1 sliding groove (514) is provided on the inner surfaces of both ends of the quality inspection device body (1), and a No. 1 sliding groove (514) is slidably installed in the No. 1 sliding groove (514).

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