Preprinting roller surface defect detection device

Abstract

The utility model discloses a preprinting plate roller surface defect detection device, relates to the technical field of preprinting plate roller defect detection, solves the problem that the detection device is inconvenient to disassemble in the using process, and comprises an operation table, and supporting plates are fixedly connected to the two sides of the top of the operation table. A printing plate roller body is rotationally connected to the opposite sides of the two supporting plates through bearings, and a rotating motor is fixedly connected to the left side of the supporting plate on the left side. According to the printing plate roller surface defect detection device, defects on the surface of a printing plate roller body can be detected, through arrangement of a pin rod, a pin hole, a positioning cylinder, a pull block, a limiting rod and a limiting hole, a detection mechanism can be installed and fixed, meanwhile, the detection mechanism can be conveniently disassembled, the detection mechanism can be conveniently installed on different devices for detection, and the detection cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pre-printing plate roller defect detection, in particular to a pre-printing plate roller surface defect detection device. Background Art

[0002] During the production and printing process of the gravure roller, if the staff finds problems with the printing quality, such as color fading and cracks in the printing, it is necessary to detect whether there are defects such as sand holes, bubbles, and scratches on the surface of the roller. By detecting the above defects and repairing them for a second time, it is necessary to use a pre-printed roller surface defect detection device. Although the currently used pre-printed roller surface defect detection device can meet the detection needs, it still has defects in actual use;

[0003] For example, a gravure roller copper point defect detection device provided by the authorization announcement number CN219758105U, through the side plate, top plate, reciprocating screw, reciprocating ring, support frame, connecting plate, sensor camera, fill light, fixed plate and movable ring, when performing detection, first start the first motor, drive the reciprocating screw to rotate through the first motor, then drive the reciprocating ring to reciprocate on the surface of the reciprocating screw, then drive the support frame and the connecting plate to move through the reciprocating ring, and the sensor camera and fill light are used to detect at the top of the gravure roller during the movement of the connecting plate, so as to accurately detect the surface of the gravure roller, and the gravure roller can also be illuminated by the fill light, which reflects the practicality of the design;

[0004] However, it is inconvenient to disassemble the detection device during use. Since the detection device does not need to be detected all the time, it can be detected before printing. The detection device always needs to be installed on the printing plate roller, which not only brings inconvenience to printing, but also wastes resources. As a result, each device needs to be equipped with a detection device, which needs to be improved. Therefore, a pre-printing plate roller surface defect detection device is now proposed. Utility Model Content

[0005] In order to improve the problem that it is inconvenient to disassemble the detection device during use, the utility model provides a pre-printing plate roller surface defect detection device.

[0006] The utility model provides a device for detecting surface defects of a pre-printing plate roller, which adopts the following technical scheme:

[0007] A device for detecting surface defects of a pre-printing plate roller comprises an operating table, both sides of the top of the operating table are fixedly connected with support plates, the opposite sides of the two support plates are rotatably connected with a printing plate roller body through bearings, the left side of the left support plate is fixedly connected with a rotating motor, the output end of the rotating motor is fixedly connected with the left side of the printing plate roller body, pin holes are opened at the front positions of the left and right sides of the top of the operating table, the inner surfaces of the pin holes are plugged with pin rods, the top of the pin rods is fixedly connected with a driving box, the inner cavity of the driving box is provided with a detection mechanism, and the bottom of the operating table is provided with a mounting mechanism;

[0008] The installation mechanism includes two positioning cylinders, which are respectively fixedly installed at the front positions on the left and right sides of the bottom of the operating table. The inner surface of the positioning cylinder is movably connected to a limiting rod, and a pull block is fixedly connected to one side of the limiting rod. A limiting hole is opened on the surface of the pin rod for cooperating with the limiting rod, and the outer surface of the limiting rod is plugged into the inner surface of the limiting hole.

[0009] By adopting the above technical solution, the detection mechanism can be installed and fixed, and it is also convenient to disassemble the detection mechanism, so that the detection mechanism can be installed on different equipment for detection, thereby reducing the detection cost.

[0010] Optionally, the detection mechanism includes a servo motor, which is fixedly installed on the left side of the inner cavity of the drive box. The output end of the servo motor is fixedly connected to a threaded rod. The right side of the threaded rod is rotatably connected to the right side of the inner cavity of the drive box through a bearing. The left side of the outer surface of the threaded rod is threadedly connected to a threaded sleeve, the back side of the threaded sleeve is fixedly connected to a screw, the outer surface of the screw is threadedly connected to a mounting nut, and a detection camera is fixedly installed on the back side of the mounting nut.

[0011] By adopting the above technical solution, it is not only convenient to install and fix the detection camera, but also can drive the detection camera to move left and right, so as to facilitate defect detection of the left and right positions of the printing plate roller body and increase the detection range.

[0012] Optionally, the outer surface of the limiting rod is fixedly connected to a limiting ring, the inner cavity of the positioning cylinder is provided with a ring groove used in conjunction with the limiting ring, and the outer surface of the limiting ring is slidably connected to the inner surface of the ring groove.

[0013] By adopting the above technical solution, the movement of the limiting rod can be guided and limited.

[0014] Optionally, a compression spring is movably connected to the outer surface of the limiting rod, and one end of the compression spring close to the limiting ring is fixedly connected to the connection of the limiting ring, and one end of the compression spring away from the limiting ring is fixedly connected to the connection of the inner cavity of the ring groove.

[0015] By adopting the above technical solution, the limiting rod can be easily pushed to move, thereby improving the connection tightness between the limiting rod and the limiting hole.

[0016] Optionally, a slider is fixedly connected to the bottom of the threaded sleeve, a slide groove cooperating with the slider is provided at the bottom of the inner cavity of the drive box, and the outer surface of the slider is slidably connected to the inner surface of the slide groove.

[0017] By adopting the above technical solution, the movement of the threaded sleeve can be guided and limited.

[0018] Optionally, a through groove is provided on the back side of the driving box, and the outer surface of the screw rod is slidably connected to the inner surface of the through groove.

[0019] By adopting the above technical solution, the screw rod can be easily moved.

[0020] Optionally, an inspection plate is fixedly connected to the front of the drive box by screws, and legs are fixedly connected to the four corners of the bottom of the operating table.

[0021] By adopting the above technical solution, the drive box can be easily disassembled and repaired.

[0022] In summary, the utility model has the following beneficial effects:

[0023] 1. The utility model can perform printing operations by arranging an operating table, a support plate, a rotating motor and a printing plate roller body, can detect defects on the surface of the printing plate roller body by arranging a detection mechanism, can install and fix the detection mechanism by arranging a pin rod, a pin hole, a positioning cylinder, a pull block, a limit rod and a limit hole, and can also facilitate the disassembly of the detection mechanism, and facilitate the installation of the detection mechanism on different equipment for detection, thereby reducing the detection cost.

[0024] 2. The utility model not only facilitates the installation and fixation of the detection camera by setting a servo motor, a threaded rod, a threaded sleeve, a screw and a mounting nut, but also can drive the detection camera to move left and right, so as to facilitate defect detection of the left and right positions of the printing plate roller body and improve the detection range. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the utility model;

[0026] Figure 2 It is a cross-sectional view of the structure of the utility model;

[0027] Figure 3 It is a cross-sectional view of the positioning tube structure of the utility model;

[0028] Figure 4 It is a top sectional view of the drive box structure of the utility model.

[0029] In the figure: 1. operating table; 2. supporting plate; 3. printing plate roller body; 4. rotating motor; 5. pin hole; 6. pin rod; 7. driving box; 8. detection mechanism; 801. servo motor; 802. threaded rod; 803. threaded sleeve; 804. screw rod; 805. mounting nut; 806. detection camera; 9. mounting mechanism; 901. positioning cylinder; 902. limiting rod; 903. pulling block; 904. limiting hole; 10. limiting ring; 11. ring groove; 12. compression spring. DETAILED DESCRIPTION

[0030] 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.

[0031] Embodiment 1:

[0032] Please refer to Figure 1-4 A device for detecting surface defects of a pre-printing plate roller comprises an operating table 1, support plates 2 are fixedly connected to both sides of the top of the operating table 1, a printing plate roller body 3 is rotatably connected to the opposite sides of the two support plates 2 through bearings, a rotating motor 4 is fixedly connected to the left side of the left support plate 2, and the output end of the rotating motor 4 is fixedly connected to the left side of the printing plate roller body 3, pin holes 5 are opened at the front positions of the left and right sides of the top of the operating table 1, a pin rod 6 is inserted into the inner surface of the pin hole 5, a driving box 7 is fixedly connected to the top of the pin rod 6, a detection mechanism 8 is arranged in the inner cavity of the driving box 7, a mounting mechanism 9 is arranged at the bottom of the operating table 1, a positioning ring is fixedly connected to the outer surface of the pin rod 6, and the bottom of the positioning ring contacts the top of the operating table 1;

[0033] The mounting mechanism 9 includes two positioning cylinders 901, which are respectively fixedly mounted at the front positions on the left and right sides of the bottom of the operating table 1. The inner surface of the positioning cylinder 901 is movably connected to a limiting rod 902, and a pull block 903 is fixedly connected to one side of the limiting rod 902. A limiting hole 904 is provided on the surface of the pin rod 6 for cooperating with the limiting rod 902, and the outer surface of the limiting rod 902 is plugged into the inner surface of the limiting hole 904.

[0034] As a technical optimization solution of the utility model, further, the outer surface of the limit rod 902 is fixedly connected to the limit ring 10, the inner cavity of the positioning cylinder 901 is provided with a ring groove 11 used to cooperate with the limit ring 10, and the outer surface of the limit ring 10 is slidably connected to the inner surface of the ring groove 11.

[0035] As a technical optimization solution of the utility model, further, the outer surface of the limiting rod 902 is movably connected with a compression spring 12, the end of the compression spring 12 close to the limiting ring 10 is fixedly connected to the connection of the limiting ring 10, and the end of the compression spring 12 away from the limiting ring 10 is fixedly connected to the connection of the inner cavity of the ring groove 11.

[0036] As a technical optimization solution of the utility model, further, the front of the driving box 7 is fixedly connected with an inspection plate by screws, and the four corners of the bottom of the operating table 1 are fixedly connected with supporting legs.

[0037] In the present embodiment: by providing an operating table 1, a support plate 2, a rotating motor 4 and a printing plate roller body 3, printing operations can be performed; by providing a detection mechanism 8, defects on the surface of the printing plate roller body 3 can be detected; by providing a pin rod 6, a pin hole 5, a positioning cylinder 901, a pull block 903, a limit rod 902 and a limit hole 904, the detection mechanism 8 can be installed and fixed, and it is also convenient to disassemble the detection mechanism 8, and it is convenient to install the detection mechanism 8 on different equipment for detection, thereby reducing the detection cost; by providing a limit ring 10 and a ring groove 11, the movement of the limit rod 902 can be guided and limited; by providing a compression spring 12, the connection tightness between the limit rod 902 and the limit hole 904 can be improved; and by providing an inspection plate, the drive box 7 can be easily disassembled and repaired.

[0038] Embodiment 2:

[0039] Reference Figure 2 and Figure 4 The detection mechanism 8 includes a servo motor 801, which is fixedly installed on the left side of the inner cavity of the drive box 7. The output end of the servo motor 801 is fixedly connected with a threaded rod 802. The right side of the threaded rod 802 is rotatably connected to the connection between the right side of the inner cavity of the drive box 7 and the right side of the inner cavity of the drive box 7 through a bearing. The left side of the outer surface of the threaded rod 802 is threadedly connected with a threaded sleeve 803, and the back side of the threaded sleeve 803 is fixedly connected with a screw rod 804. The outer surface of the screw rod 804 is threadedly connected with a mounting nut 805, and the back side of the mounting nut 805 is fixedly installed with a detection camera 806.

[0040] As a technical optimization solution of the utility model, further, a slider is fixedly connected to the bottom of the threaded sleeve 803, a sliding groove for cooperating with the slider is opened at the bottom of the inner cavity of the driving box 7, and the outer surface of the slider is slidably connected to the inner surface of the sliding groove.

[0041] As a technical optimization solution of the utility model, further, a through groove is opened on the back side of the driving box 7, and the outer surface of the screw rod 804 is slidably connected to the inner surface of the through groove.

[0042] In this embodiment: by setting a servo motor 801, a threaded rod 802, a threaded sleeve 803, a screw 804 and a mounting nut 805, it is not only convenient to install and fix the detection camera 806, but also can drive the detection camera 806 to move left and right, so as to facilitate defect detection of the left and right positions of the printing plate roller body 3 and improve the detection range. By setting a slider and a slide groove, the movement of the threaded sleeve 803 can be guided and limited. By setting a through groove, the screw 804 can be conveniently moved in the left and right directions.

[0043] The implementation principle of the utility model is as follows: when it is used, when it is necessary to detect defects on the surface of the plate roller body 3, the detection mechanism 8 is installed on the top of the operating table 1, and the defects on the surface of the plate roller body 3 are detected by the detection camera 806. At the same time, the control switch of the servo motor 801 is started, and the servo motor 801 drives the threaded rod 802 to rotate, the threaded rod 802 drives the threaded sleeve 803 to move, and the threaded sleeve 803 drives the screw rod 804, the mounting nut 805 and the detection camera 806 to move, and the left and right positions of the plate roller body 3 are detected. When one device is finished detecting, it is necessary to detect another device. When one device is being inspected, the pull block 903 is pulled toward the middle, and the pull block 903 drives the limit rod 902 to move toward the middle, so that the limit rod 902 is disengaged from the limit hole 904, and then the drive box 7 is moved upward, the drive box 7 and the pin rod 6 are removed, and then the pin rod 6 is inserted into the pin hole 5 of another device. The limit rod 902 is pushed to move by the action of the compression spring 12, so that the limit rod 902 is inserted into the limit hole 904 to complete the installation, and then the other device can be inspected. This method is convenient for disassembly of the detection mechanism 8, and is convenient for installing the detection mechanism 8 on different devices for detection, thereby reducing the detection cost.

[0044] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A device for detecting surface defects of a pre-printing plate roller, comprising an operating table (1), characterized in that: Both sides of the top of the operating table (1) are fixedly connected to support plates (2), and the opposite sides of the two support plates (2) are rotatably connected to a printing plate roller body (3) via bearings. The left side of the left support plate (2) is fixedly connected to a rotating motor (4), and the output end of the rotating motor (4) is fixedly connected to the left side of the printing plate roller body (3). Pin holes (5) are provided at the front positions of the left and right sides of the top of the operating table (1), and the inner surfaces of the pin holes (5) are plugged with pin rods (6). The top of the pin rods (6) is fixedly connected to a driving box (7), and the inner cavity of the driving box (7) is provided with a detection mechanism (8). The bottom of the operating table (1) is provided with a mounting mechanism (9); The mounting mechanism (9) comprises two positioning cylinders (901), the two positioning cylinders (901) being fixedly mounted at the front positions on the left and right sides of the bottom of the operating table (1), respectively; the inner surface of the positioning cylinder (901) is movably connected to a limiting rod (902), one side of the limiting rod (902) is fixedly connected to a pull block (903), the surface of the pin rod (6) is provided with a limiting hole (904) used in conjunction with the limiting rod (902), and the outer surface of the limiting rod (902) is plugged into the inner surface of the limiting hole (904).

2. The device for detecting surface defects of a pre-printing plate roller according to claim 1, characterized in that: The detection mechanism (8) comprises a servo motor (801), the servo motor (801) being fixedly mounted on the left side of the inner cavity of the drive box (7), the output end of the servo motor (801) being fixedly connected to a threaded rod (802), the right side of the threaded rod (802) being rotatably connected to the right side of the inner cavity of the drive box (7) at a connection point via a bearing, the left side of the outer surface of the threaded rod (802) being threadedly connected to a threaded sleeve (803), the back side of the threaded sleeve (803) being fixedly connected to a screw rod (804), the outer surface of the screw rod (804) being threadedly connected to a mounting nut (805), and the back side of the mounting nut (805) being fixedly mounted with a detection camera (806).

3. The device for detecting surface defects of a pre-printing plate roller according to claim 1, characterized in that: The outer surface of the limiting rod (902) is fixedly connected to the limiting ring (10), the inner cavity of the positioning cylinder (901) is provided with a ring groove (11) used in conjunction with the limiting ring (10), and the outer surface of the limiting ring (10) is slidably connected to the inner surface of the ring groove (11).

4. The device for detecting surface defects of a pre-printing plate roller according to claim 3, characterized in that: The outer surface of the limiting rod (902) is movably connected to a compression spring (12); one end of the compression spring (12) close to the limiting ring (10) is fixedly connected to the connection of the limiting ring (10); and one end of the compression spring (12) away from the limiting ring (10) is fixedly connected to the connection of the inner cavity of the ring groove (11).

5. The device for detecting surface defects of a pre-printing plate roller according to claim 2, characterized in that: A sliding block is fixedly connected to the bottom of the threaded sleeve (803), a sliding groove for cooperating with the sliding block is provided at the bottom of the inner cavity of the drive box (7), and the outer surface of the sliding block is slidably connected to the inner surface of the sliding groove.

6. The device for detecting surface defects of a pre-printing plate roller according to claim 2, characterized in that: A through slot is provided on the back of the drive box (7), and the outer surface of the screw rod (804) is slidably connected to the inner surface of the through slot.

7. The device for detecting surface defects of a pre-printing plate roller according to claim 1, characterized in that: The front of the drive box (7) is fixedly connected to an inspection plate by means of screws, and the four corners of the bottom of the operating table (1) are fixedly connected to supporting legs.

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