Book printing quality detection device

Abstract

The utility model discloses a quality detection device for book printing, and relates to the technical field of printing detection. Comprising two supports, guide rollers are arranged between the two ends of the upper portions of the two supports, the two guide rollers are connected through a conveying belt, and the middles of the upper ends of the two supports are fixedly connected through a bearing plate; the connecting plate is arranged between the middle parts of the top ends of the two brackets; the driving assembly is arranged on the connecting plate; and the pressing detection assembly is installed at the bottom of the driving assembly and used for conducting quality inspection on the printed book paper. According to the quality detection device for book printing, the connecting plate is arranged on the support, the driving assembly on the connecting plate drives the movable plate to move through the motor on the movable plate, then the pressing detection assembly is driven to horizontally move, paper at different positions is detected, and the detection efficiency of the device is improved; and the movable plate is convenient to move due to multiple groups of guide wheels on the movable plate.

Description

Technical Field

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

[0002] Before slotting and cutting, printed paper, cardboard and other packaging materials need to be inspected to avoid defective printing products affecting product quality. Since manual quality inspection is inefficient and labor costs are high, industrial cameras are mostly used for quality inspection in production. The principle is mainly to collect photos through industrial cameras and compare and analyze with standard images to determine whether the printing quality meets the standards. However, with the continuous development of printing technology, traditional inspection equipment can no longer meet the quality inspection needs of high-quality printed products.

[0003] The utility model with publication number CN 212422543 U discloses a printing quality detection device, including a first guide roller, a second guide roller, a roller table, a door-shaped bracket, an upper slide bar, a lower slide bar, and a detection mark component. The utility model uses three detection mark components to continuously take black and white photos of the printed paper, cardboard and other printed products in different areas and detect them. When the printing quality is found to be unqualified, the unqualified parts can be marked with inkjet in real time.

[0004] The above utility model uses inkjet to mark, which is convenient for subsequent rejection process operations, but the detection mechanism in the above device cannot be moved and needs to be photographed by multiple groups of cameras. In addition, there is no clamping mechanism in the above device. During the detection process, if the paper is wrinkled or arched, it is not convenient to perform quality inspection on the paper. The above device uses a camera for photographic inspection, but there is no fill light or brightness sensor, and it cannot detect the defective parts of the paper printing. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a quality detection device for book printing, which solves the existing problems.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a quality inspection device for book printing, comprising:

[0007] A bracket, wherein two brackets are provided, the two brackets are distributed in parallel, guide rollers are provided between the upper ends of the two brackets, the two guide rollers are connected by a conveyor belt, and the middle parts of the upper ends of the two brackets are fixedly connected by a pressure plate, and the pressure plate is in contact with the upper bottom surface of the conveyor belt;

[0008] A connecting plate, the connecting plate is arranged between the middle parts of the top ends of the two brackets;

[0009] A driving assembly, which is arranged on the connecting plate and is used to drive the detection mechanism to move horizontally;

[0010] A pressing detection component is installed at the bottom of the driving component and is used to perform quality inspection on printed book paper.

[0011] Preferably, a plurality of equally spaced guide wheel grooves are provided on the upper surface of the connecting plate, limiting slide grooves are provided on both sides of the connecting plate, and a tooth groove is provided on the lower end of one side of the connecting plate.

[0012] Preferably, the driving assembly includes a movable plate, the inner top wall of the movable plate is provided with a plurality of grooves, the interior of the grooves is movably connected with a plurality of equally spaced guide wheels via pins, and the guide wheels are adapted to the guide wheel grooves.

[0013] Preferably, limiting sliders are fixed on the inner walls on both sides of the movable plate, the limiting sliders are adapted to the limiting sliding grooves, a motor is fixed in the middle of the outer wall of one side of the movable plate, a gear is fixed on the output shaft of the motor, one end of the gear passes through the empty slot opened on the movable plate and meshes with the tooth groove.

[0014] Preferably, the compression detection assembly includes a mounting plate fixed to the bottom end of the movable plate, a detection lens is installed in the middle of the lower surface of the mounting plate, a plurality of fill lights distributed in a circular array are arranged around the detection lens, and brightness sensors are installed at both ends of the lower surface of the mounting plate.

[0015] Preferably, guide grooves are provided at the four corners of the mounting plate, and guide plates are connected through the interior of the guide grooves, wherein the bottom ends of the two guide plates are fixed by a mounting frame, and the mounting frame is movably connected to a clamping roller via a pin shaft, and the middle part of the upper surface of the mounting frame is connected to the lower surface of the mounting plate via a plurality of springs distributed at equal intervals.

[0016] Beneficial Effects

[0017] The utility model provides a quality inspection device for book printing. Compared with the prior art, it has the following beneficial effects:

[0018] 1. The quality inspection device for book printing is provided with a connecting plate on the bracket. The driving component on the connecting plate drives the movable plate to move through the motor on the movable plate, thereby driving the pressing inspection component to move horizontally, so as to inspect the paper at different positions, thereby improving the inspection efficiency of the device. The multiple sets of guide wheels on the movable plate make the movable plate easy to move;

[0019] 2. The quality inspection device for book printing has a mounting plate fixed at the bottom of a movable plate. The inspection lens on the mounting plate can inspect the paper. The setting of the fill light and the brightness sensor enables the inspection lens to clearly detect the defects of the paper printing. Pressure rollers are arranged at both ends of the mounting plate. The pressure rollers are tightly pressed on the paper by springs, so that the paper remains flat during inspection, thereby improving the inspection accuracy and effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the connecting plate structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the drive assembly of the utility model;

[0023] Figure 4 It is a schematic diagram of the structure of the compression detection component of the utility model.

[0024] In the figure: bracket 1, guide roller 11, conveyor belt 12, pressure plate 13, connecting plate 2, guide wheel groove 21, limiting slide groove 22, tooth groove 23, drive assembly 3, movable plate 31, groove 32, guide wheel 33, limiting slider 34, motor 35, gear 36, clamping detection assembly 4, mounting plate 41, detection lens 42, fill light 43, brightness sensor 44, guide groove 45, guide plate 46, mounting frame 47, clamping roller 48, spring 49. DETAILED DESCRIPTION

[0025] 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 technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The utility model provides two technical solutions:

[0027] Figure 1-3 A first embodiment is shown: a quality inspection device for book printing, comprising:

[0028] Bracket 1, two brackets 1 are provided, the two brackets 1 are distributed in parallel, guide rollers 11 are provided between the upper ends of the two brackets 1, the two guide rollers 11 are connected by a conveyor belt 12, the middle parts of the upper ends of the two brackets 1 are fixedly connected by a pressure plate 13, and the pressure plate 13 is in contact with the upper bottom surface of the conveyor belt 12;

[0029] The connecting plate 2 is arranged between the middle parts of the top ends of the two brackets 1. The upper surface of the connecting plate 2 is provided with a plurality of equally spaced guide wheel grooves 21. Both sides of the connecting plate 2 are provided with limited sliding grooves 22. A tooth groove 23 is provided at the lower end of one side of the connecting plate 2.

[0030] The driving assembly 3 is arranged on the connecting plate 2 and is used to drive the detection mechanism to move horizontally. The driving assembly 3 includes a movable plate 31. The inner top wall of the movable plate 31 is provided with a plurality of grooves 32. The inside of the groove 32 is movably connected with a plurality of guide wheels 33 distributed at equal intervals through a pin shaft. The guide wheels 33 are adapted to the guide wheel grooves 21. The setting of the guide wheels 33 reduces the friction between the movable plate 31 and the connecting plate 2, making the movable plate 31 easy to move and playing a certain guiding role. The inner walls on both sides of the movable plate 31 are fixed with limited The limiting slider 34 is adapted to the limiting slide groove 22. The limiting slider 34 cooperates with the limiting slide groove 22 to play a guiding role, so that the movable plate 31 maintains linear movement. A motor 35 is fixed to the middle of the outer wall of one side of the movable plate 31. A gear 36 is fixed to the output shaft of the motor 35. One end of the gear 36 passes through the empty slot on the movable plate 31 and meshes with the tooth groove 23. The motor 35 drives the gear 36 to rotate. The gear 36 cooperates with the tooth groove 23 so that the motor 35 can drive the movable plate 31 to move on the connecting plate 2.

[0031] Figure 1 and 4 The second embodiment is shown, which is mainly different from the first embodiment in that it includes a pressing detection component 4, which is installed at the bottom of the driving component 3 and is used to perform quality inspection on the printed book paper. The pressing detection component 4 includes a mounting plate 41 fixed to the bottom end of the movable plate 31, and a detection lens 42 is installed in the middle of the lower surface of the mounting plate 41. The detection lens 42 can detect the printed paper. A plurality of fill lights 43 distributed in a ring array are arranged around the detection lens 42. The fill lights 43 play a role of fill light. Brightness sensors 44 are installed at both ends of the lower surface of the mounting plate 41. The brightness sensor 44 can detect the brightness of the printed paper according to the fill light. The light reflected by the light lamp 43 on the paper has different brightness, and the defects of the paper are determined to facilitate detection by the detection lens 42. Guide grooves 45 are opened at the four corners of the mounting plate 41. The inside of the guide groove 45 is connected with a guide plate 46, and the bottom ends of the two guide plates 46 are fixed by a mounting frame 47. The guide plate 46 cooperates with the guide groove 45 to keep the mounting frame 47 moving vertically up and down. The mounting frame 47 is movably connected to a clamping roller 48 through a pin shaft. The middle part of the upper surface of the mounting frame 47 is connected to the lower surface of the mounting plate 41 through a plurality of springs 49 distributed at equal intervals. The clamping roller 48 cooperates with the spring 49 to flatten the paper, making the paper easy to detect.

[0032] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used.

[0033] When in use, the first step is to transport the printed book paper to the conveyor belt 12 through the transmission device, and then start the driving mechanism connected to the guide roller 11 to drive the guide roller 11 to rotate, the guide roller 11 drives the conveyor belt 12 to rotate, and the conveyor belt 12 drives the paper to move. The pinch roller 48 cooperates with the pressure plate 13 under the action of the spring 49 to flatten the paper, so as to facilitate the detection lens 42 to detect. When the paper moves to the bottom of the detection lens 42, the detection lens 42 detects the paper. The setting of the fill light 43 and the brightness sensor 44 can determine the defects of the paper, which is convenient for the detection lens 42 to detect. When the paper is located at different positions on the conveyor belt 12, the guide plate 46 is moved upward at this time until the pinch roller 48 is separated from the conveyor belt 12, and then the motor 35 is started. The motor 35 drives the gear 36 to rotate, and the gear 36 cooperates with the tooth groove 23 to drive the movable plate 31 to move, and the movable plate 31 drives the mounting plate 41 to move until the detection lens 42 moves to the top of the paper. At this time, the guide plate 46 is released and the pinch roller 48 presses the paper.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quality inspection device for book printing, characterized in that ,include: A bracket, wherein two brackets are provided, the two brackets are distributed in parallel, guide rollers are provided between the upper ends of the two brackets, the two guide rollers are connected by a conveyor belt, and the middle parts of the upper ends of the two brackets are fixedly connected by a pressure plate, and the pressure plate is in contact with the upper bottom surface of the conveyor belt; A connecting plate, the connecting plate is arranged between the middle parts of the top ends of the two brackets; A driving assembly, which is arranged on the connecting plate and is used to drive the detection mechanism to move horizontally; A pressing detection component is installed at the bottom of the driving component and is used to perform quality inspection on printed book paper.

2. A quality inspection device for book printing according to claim 1, characterized in that: The upper surface of the connecting plate is provided with a plurality of equally spaced guide wheel grooves, both sides of the connecting plate are provided with limiting sliding grooves, and the lower end of one side of the connecting plate is provided with a tooth groove.

3. The quality inspection device for book printing according to claim 1, characterized in that: The driving assembly includes a movable plate, the inner top wall of the movable plate is provided with a plurality of grooves, the interior of the grooves is movably connected with a plurality of guide wheels distributed at equal intervals via pins, and the guide wheels are adapted to the guide wheel grooves.

4. The quality inspection device for book printing according to claim 3, characterized in that: Limiting sliders are fixed on the inner walls on both sides of the movable plate, and the limiting sliders are adapted to the limiting sliding grooves. A motor is fixed to the middle of the outer wall of one side of the movable plate, and a gear is fixed to the output shaft of the motor. One end of the gear passes through the empty slot opened on the movable plate and meshes with the tooth groove.

5. The quality inspection device for book printing according to claim 1, characterized in that: The clamping detection component includes a mounting plate fixed to the bottom end of the movable plate, a detection lens is installed in the middle of the lower surface of the mounting plate, a plurality of fill lights distributed in a circular array are arranged around the detection lens, and brightness sensors are installed at both ends of the lower surface of the mounting plate.

6. The quality inspection device for book printing according to claim 5, characterized in that: Guide grooves are provided at the four corners of the mounting plate, and guide plates are connected through the guide grooves, wherein the bottom ends of the two guide plates are fixed by a mounting frame, and the mounting frame is movably connected to a clamping roller by a pin shaft, and the middle part of the upper surface of the mounting frame is connected to the lower surface of the mounting plate by a plurality of springs distributed at equal intervals.

Images