Intaglio roller detection device and detection method thereof

Abstract

The invention provides a gravure plate roller detection device and a detection method thereof, and belongs to the technical field of plate roller detection.The gravure plate roller detection device comprises an installation bottom plate and control equipment, the top of the installation bottom plate is connected with a supporting mechanism through a first transmission mechanism, and the gravure plate roller detection device further comprises a detection mechanism and a detection contact. When the contact degree of a rolling ball and the surface of a gravure plate roller is adjusted, a mounting piece can move in the direction close to a dial indicator, a second piston plate can extrude hydraulic oil in a first cavity, the hydraulic oil penetrates through a proportional valve to enter four flow guide pipes, and a first piston plate can be pushed to move in a first sliding groove in the direction close to a limiting ring; the resistance of the extrusion rod moving from the clamping groove to the guide groove can be automatically adjusted through the contact degree of the rolling ball and the surface of the intaglio roller, the adaptability is improved, the rolling ball is prevented from directly rotating when coaxiality and straightness are detected, and then the accuracy of surface defect detection is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of plate roller detection, and in particular relates to a gravure plate roller detection device and a detection method thereof. Background Art

[0002] The gravure roller is a roller used for printing, mainly used in the gravure printing process. It is made of a hollow metal tube with a pattern of a certain depth and shape on the surface, usually various types of grooves or small holes. The gravure roller plays a vital role in the printing process, and its surface quality directly affects the quality of the printed product. If there are scratches, dents and other defects on the surface of the gravure roller, it will cause corresponding quality problems in the printed product, such as unclear patterns and uneven colors. Therefore, regular inspection of the gravure roller is one of the important measures to ensure the quality of printed products.

[0003] The Chinese patent application number 202310881717.0 discloses a gravure roller detection device and a detection method thereof, wherein the gravure roller detection device comprises a bottom plate, two side plates are fixedly connected to the left and right sides of the upper surface of the bottom plate, a first rotating shaft is rotatably connected between the two side plates through a bearing, a plurality of first roller assemblies are movably arranged on the outer surface of the first rotating shaft, a first groove is provided on the upper surface of the side plate, a movable plate is arranged inside the first groove, and a second rotating shaft is rotatably connected between the two movable plates through a bearing. The invention can adapt to gravure rollers of different sizes, and the assistance of the motor makes the roller detection more convenient, improves work efficiency, and reduces labor intensity. At the same time, the first rubber wheel and the second rubber wheel are moved left and right by the lifting assembly, so as to avoid the first rubber wheel and the second rubber wheel from wearing the mark of the marker when the gravure roller rotates, and better identify the defects of the gravure roller.

[0004] Similar to the above-mentioned device, when detecting the surface defects of the gravure roller, the naked eye observation method is adopted. However, it is impossible to intuitively detect the straightness and coaxiality of the gravure roller only by naked eye observation, nor is it possible to detect smaller defects on the surface of the gravure roller. These smaller defects will cause the surface of the gravure roller to be uneven. When detecting the straightness or coaxiality of the gravure roller surface, these smaller defects will affect the detection accuracy of the straightness and coaxiality of the gravure roller, and it is impossible to clearly determine whether the straightness and coaxiality are affected by the surface defects.

[0005] Therefore, in order to solve the above problems, it is necessary to provide a gravure plate roller detection device and a detection method thereof. Summary of the invention

[0006] The purpose of the present invention is to provide a gravure roller detection device and a detection method thereof, aiming to solve the problem in the prior art that defects on the surface of the gravure roller affect the accuracy of the detection of the straightness and coaxiality of the gravure roller.

[0007] To achieve the above object, the present invention provides the following technical solutions: A gravure plate roller detection device comprises a mounting base plate and a control device, wherein the top of the mounting base plate is connected to a supporting mechanism via a first transmission mechanism, and further comprises: a detection mechanism, wherein the detection mechanism is connected to the top of the mounting base plate via a second transmission mechanism, wherein the detection mechanism comprises a movable frame, wherein one side of the movable frame is connected to a dial indicator via an adjustment mechanism, wherein the dial indicator is electrically connected to the control device, and wherein the control device can receive detection data of the dial indicator; a detection contact, wherein the detection contact is connected to a detection end of the dial indicator, wherein the detection contact comprises a mounting member, wherein a receiving cavity is provided inside the mounting member, wherein an isolation plate is fixedly connected to the inner wall of the receiving cavity, wherein the isolation plate divides the interior of the receiving cavity into a first cavity and a second cavity from top to bottom, wherein a guide bin is fixedly connected inside the second cavity, wherein a limit rod is fixedly connected to the bottom of the guide bin, wherein a through groove is provided at the bottom of the mounting member, wherein the through groove corresponds to the position of the limit rod, wherein a limit groove is provided at the bottom of the limit rod, and a rolling ball is provided between the limit groove and the through groove.

[0008] Preferably, four guide tubes equidistantly distributed in a circle are fixedly connected to the bottom of the guide bin, a horizontally arranged sliding rod is fixedly connected to the outer wall of each guide tube, a guide groove connected to the corresponding guide tube is provided inside each sliding rod, a limiting ring is slidably connected inside each guide groove, an extrusion rod is fixedly connected on the inner side of each limiting ring, and each extrusion rod passes through the corresponding sliding rod at one end close to the limiting rod, the outer wall of each limiting rod is slidably connected to the corresponding sliding rod, a first sliding groove is provided on the inner wall of each guide groove, a first piston plate is slidably connected inside each first sliding groove, and a first elastic member is connected between each first piston plate and the corresponding limiting ring.

[0009] Preferably, each guide groove inner wall is provided with a first conductive sheet, and each limit ring outer wall inside the guide groove is provided with a second conductive sheet corresponding to the position of the first conductive sheet, and each of the first conductive sheet and the second conductive sheet is electrically connected to a control device. When the first conductive sheet is connected to the corresponding second conductive sheet for conductivity, the control device can detect the conductive signals corresponding to the first conductive sheet and the second conductive sheet.

[0010] Preferably, the outer wall of the rolling ball is provided with two vertically staggered guide grooves, and each of the guide grooves is provided with two symmetrically arranged card slots, wherein the two card slots in one of the guide grooves are vertically arranged with the two card slots in another guide groove, and the four card slots are in the same plane, and the connection between each card slot and the corresponding guide groove is wedge-shaped, and every two symmetrically arranged sliding rods can slide in the same guide groove, and the four extrusion rods can correspond one by one to the positions of the four card slots.

[0011] Preferably, a drainage tube connected to the first chamber is provided inside the isolation plate, a proportional valve connected to the drainage tube is provided inside the diversion chamber, and the proportional valve is respectively connected to the four diversion tubes through connecting pipes. A second piston plate is slidably connected to the inside of the first chamber, a second elastic member is connected between the bottom of the second piston plate and the isolation plate, a connecting member passing through the mounting member is fixedly connected to the top of the second piston plate, the other end of the connecting member is fixedly connected to the detection end of the dial indicator, and the outer wall of the connecting member is slidably connected to the mounting member.

[0012] Preferably, the adjustment mechanism includes a first electric screw arranged on the movable frame, a first sliding member is threadedly connected to the first electric screw, a second electric screw perpendicular to the first electric screw is provided on the first sliding member, a second slider is threadedly connected to the second electric screw, the second slider is fixedly connected to the dial indicator, driving the first electric screw can adjust the up and down movement of the first sliding member and the second electric screw, and driving the second electric screw can adjust the forward and backward movement of the second slider and the dial indicator.

[0013] Preferably, the supporting mechanism comprises two mounting frames, each of which is fixedly connected to the top of two symmetrically arranged supporting members, a mounting plate is fixedly connected between the two supporting members on the same mounting frame, and two symmetrically arranged supporting rollers are rotatably connected to opposite sides of the two mounting plates, the two supporting rollers on one of the mounting frames are connected to driven wheels, and a placement groove is provided at the bottom of the mounting frame, a driving motor is provided inside the placement groove, a driving wheel is provided on the output shaft of the driving motor, and the driving wheel is connected to the two driven wheels via a synchronous belt.

[0014] Preferably, the first transmission mechanism includes a guide rod and a third electric screw arranged on the top of the mounting base, two first moving parts are fixedly connected to the bottom of one of the mounting frames, one of the first moving parts is slidably connected to the guide rod, and the other first moving part is threadedly connected to the third electric screw, and driving the third electric screw can adjust the distance between the two mounting frames, and the second transmission mechanism includes a fourth electric screw arranged on the top of the mounting base, two second moving parts are fixedly connected to the bottom of the moving frame, one of the second moving parts is slidably connected to the guide rod, and the other second moving part is threadedly connected to the fourth electric screw, and driving the fourth electric screw can make the moving frame move left and right between the two mounting frames.

[0015] Preferably, the first chamber is filled with hydraulic oil, the second piston plate can squeeze the hydraulic oil in the first chamber, and the hydraulic oil can pass through the drainage pipe into the proportional valve, and the hydraulic oil entering the proportional valve can evenly enter the four drainage pipes.

[0016] A method for detecting a gravure printing plate roller comprises the following steps: S1: First, the distance between the two mounting frames is adjusted by driving the third electric screw to adapt to the length of the gravure roller, and then the two ends of the gravure roller to be inspected are respectively placed between the two support rollers on the two mounting plates for support; S2: adjusting the detection position of the dial indicator and the contact degree between the detection contact and the surface of the gravure plate roller by driving the first electric screw and the second electric screw; S3: Start the driving motor to rotate, drive the gravure roller on the supporting roller to rotate, and use the dial indicator to detect the coaxiality; S4: driving the fourth electric screw to move the movable frame from the vicinity of one mounting frame to the vicinity of another mounting frame, so that the dial indicator can detect the straightness of the gravure plate roller; S5: While detecting the straightness and coaxiality, the ball will rotate when encountering a surface defect, and the surface defect detection is achieved through the conductive signal of the first conductive sheet and the second conductive sheet.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The present invention adjusts the detection position of the dial indicator and the contact degree between the detection contact and the surface of the gravure plate roller by setting an adjustment mechanism, a first transmission mechanism and a second transmission mechanism, and drives the third electric screw, the first electric screw and the second electric screw. When it is necessary to detect the coaxiality, the drive motor is started to rotate, driving the gravure plate roller on the support roller to rotate, so that the dial indicator can detect the coaxiality. After the coaxiality detection of one area is completed, the fourth electric screw is driven to adjust the movable frame to move to the next coaxiality detection area, and the gravure plate roller is rotated again, so that the dial indicator performs the coaxiality detection of the area, thereby realizing the coaxiality detection of different areas of the gravure plate roller. When it is necessary to detect the straightness, the fourth electric screw is driven to move the movable frame from the vicinity of one of the mounting frames to the vicinity of another mounting frame, so that the dial indicator can perform the straightness detection of the gravure plate roller, thereby improving the overall detection efficiency.

[0018] The present invention arranges the mounting part, and when adjusting the contact degree between the ball and the surface of the gravure printing plate roller, the mounting part will move toward the direction close to the dial indicator, so that the second piston plate can squeeze the hydraulic oil inside the first chamber, and the hydraulic oil can pass through the proportional valve and evenly enter the four guide tubes. The hydraulic oil entering the guide tubes can push the first piston plate to move inside the first slide groove toward the direction close to the limit ring, squeeze the first elastic part, increase the contact degree between the extrusion rod and the slot, and increase the resistance of the extrusion rod moving from the slot to the guide groove. Therefore, the resistance of the extrusion rod moving from the slot to the guide groove can be adjusted by the contact degree between the ball and the surface of the gravure printing plate roller, thereby improving adaptability, preventing the ball from directly rotating when detecting coaxiality and straightness, and improving the accuracy of surface defect detection.

[0019] The present invention arranges a rolling ball. When the coaxiality of the gravure printing plate roller is detected, the gravure printing plate roller rotates. When the rolling ball encounters a surface defect, the left and right extrusion rods can support the rolling ball in the corresponding card slot, and the front and rear extrusion rods can move from the corresponding card slot to the corresponding guide slot. When the straightness is detected, the dial indicator moves between the two mounting frames. When the rolling ball encounters a surface defect, the front and rear extrusion rods can support the rolling ball in the corresponding card slot, and the left and right extrusion rods can move from the corresponding card slot to the corresponding guide slot. Each time the extrusion rod moves from the card slot to the guide slot, the extrusion rod is squeezed to move toward the direction close to the guide pipe, and the first elastic member can be squeezed. The corresponding two groups of first conductive sheets can be connected to the second conductive sheets for electrical conduction, and the control device can receive the conductive signal. Therefore, when detecting the straightness and coaxiality, it can be judged whether it is affected by the surface defect through the conductive signal, thereby improving the accuracy of the straightness detection. Moreover, when detecting the straightness and coaxiality, the surface defect can also be detected through the conductive signal, thereby improving the detection accuracy and efficiency of the surface defect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the first transmission mechanism of the present invention; Figure 3 It is a structural schematic diagram of the support mechanism of the present invention; Figure 4 It is a structural schematic diagram of the detection mechanism of the present invention; Figure 5 It is a structural schematic diagram of a dial indicator and a detection contact of the present invention; Figure 6 It is a schematic diagram of the internal structure of the mounting member of the present invention; Figure 7 It is a structural schematic diagram of the isolation plate of the present invention; Figure 8 It is a structural schematic diagram of the diversion bin of the present invention; Fig. 9 It is a structural schematic diagram of the rolling ball of the present invention; Fig.10 It is a schematic diagram of the structure of the guide bin and the rolling ball of the present invention; Fig.11 For the present invention Fig.10 Enlarged view of the structure of part A in the middle.

[0021] In the figure: 1, mounting base plate; 2, control device; 3, first transmission mechanism; 31, guide rod; 32, third electric screw; 4, support mechanism; 41, mounting frame; 42, support member; 43, mounting plate; 44, support roller; 45, driven wheel; 46, placement groove; 47, drive motor; 48, drive wheel; 49, synchronous belt; 410, first moving member; 5, detection mechanism; 51, moving frame; 52, second moving member; 6, detection contact; 61, mounting member; 62, accommodating chamber; 63, isolation plate; 64, first chamber; 65, second chamber; 66, guide bin; 67, limit rod; 68, through groove; 69, limit groove; 610, rolling ball ;611, guide tube;612, slide rod;613, guide groove;614, limit ring;615, extrusion rod;616, first slide groove;617, first piston plate;618, first elastic member;619, first conductive sheet;620, second conductive sheet;621, guide groove;622, clamping groove;623, guide tube;624, proportional valve;625, connecting pipe;626, second piston plate;627, second elastic member;628, connecting member;7, second transmission mechanism;71, fourth electric screw;8, adjustment mechanism;81, first electric screw;82, first sliding member;83, second electric screw;84, second slider;9, dial indicator. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Embodiment 1 In the prior art, when inspecting the surface defects of the gravure printing roller, naked eye observation is generally used. However, the straightness and coaxiality of the gravure printing roller cannot be intuitively detected only by naked eye observation, which affects the detection accuracy.

[0024] See also Figures 1 to 5 The present invention provides the following technical solutions: a gravure plate roller detection device, comprising a mounting base plate 1 and a control device 2, wherein the top of the mounting base plate 1 is connected to a support mechanism 4 via a first transmission mechanism 3, and further comprising: a detection mechanism 5, wherein the detection mechanism 5 is connected to the top of the mounting base plate 1 via a second transmission mechanism 7, wherein the detection mechanism 5 comprises a moving frame 51, wherein one side of the moving frame 51 is connected to a dial indicator 9 via an adjustment mechanism 8, wherein the dial indicator 9 is electrically connected to the control device 2, and the control device 2 can receive detection data of the dial indicator 9.

[0025] Detection contact 6, the detection contact 6 is connected to the detection end of the dial indicator 9, the detection contact 6 includes a mounting member 61, the interior of the mounting member 61 is provided with a accommodating chamber 62, the inner wall of the accommodating chamber 62 is fixedly connected with an isolation plate 63, the isolation plate 63 divides the interior of the accommodating chamber 62 into a first chamber 64 and a second chamber 65, the interior of the second chamber 65 is fixedly connected with a guide bin 66, the bottom of the guide bin 66 is fixedly connected with a limiting rod 67, a through groove 68 is provided at the bottom of the mounting member 61, and the through groove 68 corresponds to the position of the limiting rod 67, a limiting groove 69 is provided at the bottom of the limiting rod 67, a ball 610 is provided between the limiting groove 69 and the through groove 68, when the detection contact 6 contacts the surface of the gravure roller for coaxiality or straightness detection, the ball 610 will rotate.

[0026] The diameter of the through slot 68 is smaller than the diameter of the rolling ball 610 , and the cooperation between the limiting slot 69 and the through slot 68 can limit the rolling ball 610 from rotating between the limiting slot 69 and the through slot 68 .

[0027] like Figure 4 As shown, the adjusting mechanism 8 includes a first electric screw 81 arranged on the movable frame 51, a first sliding member 82 is threadedly connected to the first electric screw 81, a second electric screw 83 which is vertically arranged to the first electric screw 81 is provided on the first sliding member 82, a second sliding block 84 is threadedly connected to the second electric screw 83, and the second sliding block 84 is fixedly connected to the dial indicator 9. Driving the first electric screw 81 can adjust the up and down movement of the first sliding member 82 and the second electric screw 83, and driving the second electric screw 83 can adjust the forward and backward movement of the second sliding block 84 and the dial indicator 9.

[0028] The first electric screw 81 is driven to adjust the up and down movement of the first sliding member 82 and the second electric screw 83. The purpose is to adjust the height of the second electric screw 83 so that the dial indicator 9 on the second electric screw 83 can be adjusted synchronously. This is used to adapt to the detection of gravure rollers of different diameters, so as to avoid the different detection positions of the dial indicator 9 when detecting gravure rollers of different diameters, and to prevent the dial indicator 9 from being misaligned and unable to contact the gravure roller. The second electric screw 83 can be driven to adjust the forward and backward movement of the second sliding member 84 and the dial indicator 9. The purpose is to adjust the gap between the dial indicator 9 and the gravure roller, and to adjust the contact degree between the detection contact 6 and the surface of the gravure roller.

[0029] The heights of the second electric screw 83 and the dial indicator 9 should be set according to the different diameters of the gravure printing plate roller.

[0030] The initial threshold value detected by the dial gauge 9 is set by the control device 2. During the process of adjusting the contact degree between the detection contact 6 and the surface of the gravure plate roller, when the dial gauge 9 reaches the initial threshold value, the control device 2 will control the second electric screw 83 to stop working.

[0031] like Figure 3As shown, the support mechanism 4 includes two mounting frames 41, and two symmetrically arranged support members 42 are fixedly connected to the top of each mounting frame 41, and a mounting plate 43 is fixedly connected between the two support members 42 on the same mounting frame 41, and two symmetrically arranged support rollers 44 are rotatably connected to the opposite sides of the two mounting plates 43, and the two support rollers 44 on one of the mounting frames 41 are connected to a driven wheel 45, and a placement groove 46 is opened at the bottom of the mounting frame 41, and a driving motor 47 is arranged inside the placement groove 46, and a driving wheel 48 is arranged on the rotating shaft of the driving motor 47, and the driving wheel 48 is connected to the two driven wheels 45 via a synchronous belt 49.

[0032] like Figure 1 As shown, the two ends of the gravure plate roller to be inspected are respectively placed between two support rollers 44 on two mounting plates 43 for support. At this time, the rotation of the driving motor 47 can drive the two driven wheels 45 to rotate synchronously through the driving wheel 48 and the synchronous belt 49, which can drive the gravure plate roller on the support roller 44 to rotate.

[0033] like Figure 2 As shown, the first transmission mechanism 3 includes a guide rod 31 and a third electric screw 32 arranged on the top of the mounting base plate 1, wherein two first moving parts 410 are fixedly connected to the bottom of one mounting frame 41, wherein one of the first moving parts 410 is slidably connected to the guide rod 31, and the other first moving part 410 is threadedly connected to the third electric screw 32, and driving the third electric screw 32 can adjust the distance between the two mounting frames 41, and the second transmission mechanism 7 includes a fourth electric screw 71 arranged on the top of the mounting base plate 1, and two second moving parts 52 are fixedly connected to the bottom of the moving frame 51, wherein one of the second moving parts 52 is slidably connected to the guide rod 31, and the other second moving part 52 is threadedly connected to the fourth electric screw 71, and driving the fourth electric screw 71 can make the moving frame 51 move left and right between the two mounting frames 41.

[0034] There are two mounting frames 41, one of which is fixedly mounted on the top of the mounting base plate 1, and the other can be moved by the drive of the third electric screw 32, so as to adjust the distance between the two mounting frames 41 by driving the third electric screw 32 to adapt to gravure plate rollers of different lengths.

[0035] The first electric screw 81, the second electric screw 83, the drive motor 47, the third electric screw 32 and the fourth electric screw 71 are all electrically connected to the control device 2. The control device 2 can control the start and stop and forward and reverse rotation of the first electric screw 81, the second electric screw 83, the third electric screw 32 and the fourth electric screw 71, and can control the start and stop of the drive motor 47.

[0036] In actual use, the distance between the two mounting frames 41 is first adjusted by driving the third electric screw 32 to adapt to the length of the gravure roller, and then the two ends of the gravure roller to be detected are respectively placed between the two support rollers 44 on the two mounting plates 43 for support, and then the first electric screw 81 is driven to adjust the up and down movement of the second electric screw 83 to adjust the height of the second electric screw 83 until the dial indicator 9 reaches a suitable height, and then the second electric screw 83 is driven to adjust the forward and backward movement of the dial indicator 9 to adjust the contact degree between the detection contact 6 and the surface of the gravure roller. During this process, when the dial indicator 9 reaches the initial threshold value, the second electric screw 83 stops rotating, and then the driving motor 47 rotates to drive the gravure plate roller on the supporting roller 44 to rotate, so that the dial indicator 9 can detect the coaxiality. After the coaxiality detection of one area is completed, the fourth electric screw 71 is driven to adjust the movable frame 51 to move between the two mounting frames 41 to move to the next coaxiality detection area, and the gravure plate roller is rotated again, so that the dial indicator 9 performs the coaxiality detection of the area, thereby realizing the coaxiality detection of different areas of the gravure plate roller.

[0037] The detection area of ​​the gravure roller coaxiality should be set according to the length of the gravure roller.

[0038] It should be noted that the two ends of the gravure roller to be inspected are respectively placed between the two support rollers 44 on the two mounting plates 43 for support, and the height of the second electric screw 83 is adjusted so that the dial indicator 9 reaches an appropriate height. The contact degree between the detection contact 6 and the surface of the gravure roller is adjusted so that the dial indicator 9 reaches an initial threshold value. Then, the fourth electric screw 71 is driven to move the movable frame 51 from the vicinity of one of the mounting frames 41 to the vicinity of the other mounting frame 41, so that the dial indicator 9 can perform straightness detection of the gravure roller.

[0039] When the straightness of the gravure printing plate roller is detected, the movable frame 51 is first driven to move to the vicinity of one of the mounting frames 41, and then the dial indicator 9 is adjusted to the detection position.

[0040] In summary, the present invention adjusts the detection position of the dial indicator 9 and the contact degree between the detection contact 6 and the surface of the gravure roller by driving the third electric screw 32, the first electric screw 81 and the second electric screw 83 through the arrangement of the adjustment mechanism 8, the first transmission mechanism 3 and the second transmission mechanism 7. When it is necessary to detect the coaxiality, the drive motor 47 is started to rotate, driving the gravure roller on the support roller 44 to rotate, so that the dial indicator 9 can detect the coaxiality. After the coaxiality detection of one area is completed, the movable frame 51 is adjusted to move to the next coaxiality detection area by driving the fourth electric screw 71, and the gravure roller is rotated again, so that the dial indicator 9 performs the coaxiality detection of the area, thereby realizing the coaxiality detection of different areas of the gravure roller. When it is necessary to detect the straightness, the fourth electric screw 71 is driven to move the movable frame 51 from the vicinity of one of the mounting frames 41 to the vicinity of another mounting frame 41, so that the dial indicator 9 can perform the straightness detection of the gravure roller, thereby improving the overall detection efficiency.

[0041] Embodiment 2 Based on the above embodiment, it is impossible to detect smaller defects on the surface of the gravure roller by naked eye observation. Small defects on the surface will cause the surface of the gravure roller to be uneven. When detecting the straightness or coaxiality of the gravure roller surface, these smaller defects will affect the detection accuracy of the straightness and coaxiality of the gravure roller, and it is impossible to clearly determine whether the straightness and coaxiality are affected by the surface defects.

[0042] See also Figures 6 to 11 The bottom of the guide bin 66 is fixedly connected with four guide tubes 611 which are equidistantly distributed around the circumference. The limiting rod 67 is located on the inner side of the four guide tubes 611. The outer wall of each guide tube 611 is fixedly connected with a horizontally arranged sliding rod 612. Each sliding rod 612 is provided with a guide groove 613 which is connected with the corresponding guide tube 611. The interior of each guide groove 613 is slidably connected with a limiting ring 614. The inner side of each limiting ring 614 is fixedly connected with an extrusion rod 615. The end of each extrusion rod 615 close to the limiting rod 67 passes through the corresponding sliding rod 612, and the outer wall of each limiting rod 67 is slidably connected with the corresponding sliding rod 612. The inner wall of each guide groove 613 is provided with a first sliding groove 616. The interior of each first sliding groove 616 is slidably connected with a first piston plate 617. A first elastic member 618 is connected between each first piston plate 617 and the corresponding limiting ring 614.

[0043] Under normal conditions, that is, when the ball 610 is not in contact with the gravure roller, the first piston plate 617 is located on the side of the first slide groove 616 close to the guide tube 611. When hydraulic oil enters the guide tube 611, the hydraulic oil will push the first piston plate 617 to move in the first slide groove 616 toward the direction close to the limit ring 614, squeezing the first elastic member 618, thereby increasing the contact degree between the squeezing rod 615 and the slot 622, and increasing the resistance of the squeezing rod 615 moving from the slot 622 to the guide groove 621.

[0044] like Fig.11 As shown, the inner wall of each guide groove 613 is provided with a first conductive sheet 619, and the outer wall of the limiting ring 614 inside each guide groove 613 is provided with a second conductive sheet 620 corresponding to the position of the first conductive sheet 619, and each first conductive sheet 619 and second conductive sheet 620 are electrically connected to the control device 2. When the first conductive sheet 619 is connected and conductive with the corresponding second conductive sheet 620, the control device 2 can detect the conductive signals corresponding to the first conductive sheet 619 and the second conductive sheet 620.

[0045] like Fig. 9 As shown, the outer wall of the rolling ball 610 is provided with two vertically staggered guide grooves 621, and each guide groove 621 is provided with two symmetrically arranged card slots 622, wherein the two card slots 622 in one guide groove 621 are vertically arranged with the two card slots 622 in another guide groove 621, and the four card slots 622 are in the same plane, and the connection between each card slot 622 and the corresponding guide groove 621 is wedge-shaped, and every two symmetrically arranged sliding rods 612 can slide in the same guide groove 621, and the four extrusion rods 615 can correspond one by one to the positions of the four card slots 622.

[0046] When the slide bar 612 slides in the guide groove 621 , the squeeze bar 615 can intermittently enter the guide groove 621 from the inside of the slot 622 .

[0047] The connection between the clamping slot 622 and the corresponding guide slot 621 is wedge-shaped, so as to facilitate the extrusion rod 615 to move from the clamping slot 622 into the guide slot 621 .

[0048] like Fig.11 As shown, in a normal state, that is, when the rolling ball 610 is not detected, the four extrusion rods 615 are all inside the corresponding slots 622. At this time, the extrusion rods 615 are in close contact with the inner wall of the slot 622 under the action of the first elastic member 618, and the first conductive sheet 619 and the second conductive sheet 620 are in a misaligned state, and the first conductive sheet 619 and the second conductive sheet 620 cannot be connected for electrical conduction; Fig.10As shown, when the coaxiality of the gravure roller is detected, the gravure roller rotates. When the ball 610 encounters a surface defect, the left and right squeezing rods 615 can support the ball 610 in the corresponding slot 622, and the front and rear squeezing rods 615 can move from the corresponding slot 622 to the corresponding guide slot 621. During the rotation of the ball 610, each time the front and rear squeezing rods 615 move from the slot 622 to the guide slot 621, they squeeze the corresponding squeezing rod 615 to move toward the direction close to the guide tube 611, squeeze the first elastic member 618, and make the corresponding two groups of first conductive sheets 619 and the second conductive sheets 620 connected and conductive, so that the control device 2 receives the conductive signal, thereby determining whether it is affected by the surface defect while detecting the coaxiality through the conductive signal; when detecting the straightness, the dial indicator 9 moves between the two mounting frames 41, and the ball 610 When encountering surface defects, the front and rear two squeezing rods 615 can support the rolling ball 610 in the corresponding slot 622, and the left and right squeezing rods 615 can move from the corresponding slot 622 to the corresponding guide slot 621. During the rotation of the rolling ball 610, each time the left and right squeezing rods 615 move from the slot 622 to the guide slot 621, they will squeeze the corresponding squeezing rod 615 to move in the direction close to the guide tube 611, which can squeeze the first elastic member 618, and enable the corresponding two groups of first conductive sheets 619 to be connected to the second conductive sheet 620 for conductivity, so that the control device 2 can receive the conductive signal, thereby determining whether it is affected by surface defects through the conductive signal while detecting straightness, thereby improving the accuracy of straightness detection, and while detecting straightness and coaxiality, surface defects can also be detected through the conductive signal, thereby improving the detection accuracy and efficiency of surface defects.

[0049] like Figure 6 and Figure 7 As shown, the interior of the isolation plate 63 is provided with a drainage pipe 623 connected to the first chamber 64, the interior of the diversion chamber 66 is provided with a proportional valve 624 connected to the drainage pipe 623, the proportional valve 624 is respectively connected to the four diversion pipes 611 through the connecting pipe 625, the interior of the first chamber 64 is slidably connected with a second piston plate 626, the bottom of the second piston plate 626 is connected to the isolation plate 63 with a second elastic member 627, the top of the second piston plate 626 is fixedly connected with a connecting member 628 that passes through the mounting member 61, the other end of the connecting member 628 is fixedly connected to the detection end of the dial indicator 9, and the outer wall of the connecting member 628 is slidably connected to the mounting member 61.

[0050] The first chamber 64 is filled with hydraulic oil. The second piston plate 626 can squeeze the hydraulic oil in the first chamber 64 so that the hydraulic oil passes through the guide tube 623 and enters the proportional valve 624. The hydraulic oil entering the proportional valve 624 can evenly enter the four guide tubes 611.

[0051] In actual use, defects on the surface of the gravure roller will cause the surface of the gravure roller to be uneven, which will increase the surface roughness of the gravure roller and increase the friction between the ball 610 and the surface of the gravure roller. At this time, when the gravure roller or the detection contact 6 is moved and a surface defect is encountered, the friction force can overcome the resistance of the extrusion rod 615 moving from the inside of the slot 622 to the inside of the guide slot 621, which will cause the ball 610 under detection to rotate. Considering the different contact degrees between the ball 610 and the surface of the gravure roller, that is, the micrometer 9 The initial thresholds are different. Since the friction force is proportional to the pressure, when the initial threshold becomes larger, that is, when the extrusion degree becomes larger, the friction force between the ball 610 and the surface of the gravure roller will also increase. If the coaxiality or straightness detection is performed at this time, when the gravure roller or the detection contact 6 is moved, the increased friction force can overcome the resistance of the extrusion rod 615 moving from the inside of the slot 622 to the inside of the guide slot 621, which will cause the ball 610 to rotate directly, that is, it will rotate even when there is no surface defect, which will affect the accuracy of surface defect detection.

[0052] In the process of adjusting the contact degree between the ball 610 and the surface of the gravure roller, when the ball 610 contacts the surface of the gravure roller, the mounting member 61 will move toward the direction close to the dial indicator 9, so that the second piston plate 626 can squeeze the hydraulic oil inside the first chamber 64, and the hydraulic oil can pass through the proportional valve 624 and evenly enter the four guide tubes 611. The hydraulic oil entering the guide tubes 611 can push the first piston plate 617 to move inside the first slide groove 616 toward the direction close to the limit ring 614, squeeze the first elastic member 618, increase the contact degree between the extrusion rod 615 and the slot 622, and increase the resistance of the extrusion rod 615 moving from the slot 622 to the guide groove 621. Therefore, the resistance of the extrusion rod 615 moving from the slot 622 to the guide groove 621 can be adjusted by the contact degree between the ball 610 and the surface of the gravure roller, thereby improving the adaptability.

[0053] When the mounting member 61 moves toward the direction close to the dial indicator 9, the second elastic member 627 is compressed, and the reaction force of the second elastic member 627 provides a detection pressure for the dial indicator 9, enabling the dial indicator 9 to work. The dial indicator 9 adopts an electronic dial indicator, which is a prior art and will not be described in detail.

[0054] In summary, the present invention is provided with the mounting member 61. When adjusting the contact degree between the ball 610 and the surface of the gravure roller, the mounting member 61 will move toward the direction close to the dial indicator 9, so that the second piston plate 626 can squeeze the hydraulic oil inside the first chamber 64, and the hydraulic oil can pass through the proportional valve 624 and evenly enter the four guide tubes 611. The hydraulic oil entering the guide tubes 611 can push the first piston plate 617 to move in the first slide groove 616 toward the direction close to the limit ring 614, squeeze the first elastic member 618, increase the contact degree between the extrusion rod 615 and the slot 622, and increase the resistance of the extrusion rod 615 moving from the slot 622 to the guide groove 621. Therefore, the resistance of the extrusion rod 615 moving from the slot 622 to the guide groove 621 can be adjusted by the contact degree between the ball 610 and the surface of the gravure roller, thereby improving adaptability, preventing the ball 610 from directly rotating when detecting coaxiality and straightness, and improving the accuracy of surface defect detection.

[0055] Embodiment 3 A method for detecting a gravure printing plate roller comprises the following steps: S1: First, the distance between the two mounting frames 41 is adjusted by driving the third electric screw 32 to adapt to the length of the gravure roller, and then the two ends of the gravure roller to be inspected are respectively placed between the two support rollers 44 on the two mounting plates 43 for support; S2: adjusting the detection position of the dial gauge 9 and the contact degree between the detection contact 6 and the surface of the gravure plate roller by driving the first electric screw 81 and the second electric screw 83; S3: Start the driving motor 47 to rotate, drive the gravure plate roller on the supporting roller 44 to rotate, and make the dial indicator 9 detect the coaxiality; S4: driving the fourth electric screw 71 to move the movable frame 51 from the vicinity of one mounting frame 41 to the vicinity of another mounting frame 41, so that the dial indicator 9 can detect the straightness of the gravure plate roller; S5: While detecting the straightness and coaxiality, the ball 610 will rotate when encountering a surface defect, and the surface defect detection can be achieved through the conductive signals of the first conductive sheet 619 and the second conductive sheet 620.

[0056] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A gravure plate roller detection device, comprising a mounting base plate (1) and a control device (2), wherein the top of the mounting base plate (1) is connected to a support mechanism (4) via a first transmission mechanism (3), characterized in that: Also includes: A detection mechanism (5), the detection mechanism (5) being connected to the top of the mounting base plate (1) via a second transmission mechanism (7), the detection mechanism (5) comprising a moving frame (51), one side of the moving frame (51) being connected to a dial gauge (9) via an adjustment mechanism (8), the dial gauge (9) being electrically connected to a control device (2), and the control device (2) being capable of receiving detection data from the dial gauge (9); A detection contact (6), the detection contact (6) being connected to a detection end of a dial gauge (9), the detection contact (6) comprising a mounting member (61), a receiving chamber (62) being provided inside the mounting member (61), an isolation plate (63) being fixedly connected to the inner wall of the receiving chamber (62), the isolation plate (63) dividing the interior of the receiving chamber (62) into a first chamber (64) and a second chamber (65) at upper and lower parts, a flow guide bin (66) being fixedly connected inside the second chamber (65), a limit rod (67) being fixedly connected to the bottom of the flow guide bin (66), a through groove (68) being provided at the bottom of the mounting member (61), the through groove (68) corresponding to the position of the limit rod (67), a limit groove (69) being provided at the bottom of the limit rod (67), a rolling ball (610) being provided between the limit groove (69) and the through groove (68).

2. The gravure plate roller detection device according to claim 1, characterized in that: The bottom of the flow guide bin (66) is fixedly connected to four flow guide tubes (611) that are equidistantly distributed around the circumference; the outer wall of each of the flow guide tubes (611) is fixedly connected to a horizontally arranged sliding rod (612); each of the sliding rods (612) is provided with a flow guide groove (613) that is connected to the corresponding flow guide tube (611); each of the flow guide grooves (613) is slidably connected to a limiting ring (614); the inner side of each of the limiting rings (614) is fixedly connected to an extrusion rod (615); One end of the extrusion rod (615) close to the limiting rod (67) passes through the corresponding sliding rod (612), the outer wall of each limiting rod (67) is slidably connected to the corresponding sliding rod (612), the inner wall of each guide groove (613) is provided with a first sliding groove (616), the interior of each first sliding groove (616) is slidably connected to a first piston plate (617), and a first elastic member (618) is connected between each first piston plate (617) and the corresponding limiting ring (614).

3. The gravure plate roller detection device according to claim 2, characterized in that: The inner wall of each guide groove (613) is provided with a first conductive sheet (619), and the outer wall of the limiting ring (614) inside each guide groove (613) is provided with a second conductive sheet (620) corresponding to the position of the first conductive sheet (619). Each of the first conductive sheet (619) and the second conductive sheet (620) is electrically connected to the control device (2). When the first conductive sheet (619) is connected to the corresponding second conductive sheet (620) for electrical conduction, the control device (2) can detect the conductive signals corresponding to the first conductive sheet (619) and the second conductive sheet (620).

4. The gravure plate roller detection device according to claim 3, characterized in that: The outer wall of the rolling ball (610) is provided with two vertically staggered guide grooves (621), and each of the guide grooves (621) is provided with two symmetrically arranged clamping grooves (622), wherein the two clamping grooves (622) in one of the guide grooves (621) are vertically arranged with the two clamping grooves (622) in another of the guide grooves (621), and the four clamping grooves (622) are located in the same plane, and the connection between each clamping groove (622) and the corresponding guide groove (621) is wedge-shaped, and each of the two symmetrically arranged sliding rods (612) can slide in the same guide groove (621), and the four extrusion rods (615) can correspond to the positions of the four clamping grooves (622) one by one.

5. The gravure plate roller detection device according to claim 4, characterized in that: A drainage pipe (623) connected to the first chamber (64) is provided inside the isolation plate (63); a proportional valve (624) connected to the drainage pipe (623) is provided inside the diversion chamber (66); the proportional valve (624) is connected to the four diversion pipes (611) via connecting pipes (625); a second piston plate (626) is slidably connected inside the first chamber (64); a second elastic member (627) is connected between the bottom of the second piston plate (626) and the isolation plate (63); a connecting member (628) penetrating the mounting member (61) is fixedly connected to the top of the second piston plate (626); the other end of the connecting member (628) is fixedly connected to the detection end of the dial indicator (9); and the outer wall of the connecting member (628) is slidably connected to the mounting member (61).

6. The gravure plate roller detection device according to claim 5, characterized in that: The adjustment mechanism (8) comprises a first electric screw (81) arranged on the movable frame (51), a first sliding member (82) being threadedly connected to the first electric screw (81), a second electric screw (83) being perpendicular to the first electric screw (81) being arranged on the first sliding member (82), a second sliding block (84) being threadedly connected to the second electric screw (83), the second sliding block (84) being fixedly connected to the dial indicator (9), driving the first electric screw (81) to adjust the up-and-down movement of the first sliding member (82) and the second electric screw (83), and driving the second electric screw (83) to adjust the forward-and-backward movement of the second sliding block (84) and the dial indicator (9).

7. The gravure plate roller detection device according to claim 6, characterized in that: The support mechanism (4) comprises two mounting frames (41), the top of each mounting frame (41) is fixedly connected to two symmetrically arranged support members (42), a mounting plate (43) is fixedly connected between the two support members (42) on the same mounting frame (41), and two symmetrically arranged support rollers (44) are rotatably connected to opposite sides of the two mounting plates (43), the two support rollers (44) on one of the mounting frames (41) are connected to a driven wheel (45), and a placement groove (46) is provided at the bottom of the mounting frame (41), a driving motor (47) is provided inside the placement groove (46), a driving wheel (48) is provided on the output shaft of the driving motor (47), and the driving wheel (48) is connected to the two driven wheels (45) via a synchronous belt (49).

8. The gravure plate roller detection device according to claim 7, characterized in that: The first transmission mechanism (3) comprises a guide rod (31) and a third electric screw (32) arranged on the top of the mounting base plate (1); two first moving members (410) are fixedly connected to the bottom of one of the mounting frames (41); one of the first moving members (410) is slidably connected to the guide rod (31); the other first moving member (410) is threadedly connected to the third electric screw (32); the distance between the two mounting frames (41) can be adjusted by driving the third electric screw (32); the second transmission mechanism (7) comprises a fourth electric screw (71) arranged on the top of the mounting base plate (1); two second moving members (52) are fixedly connected to the bottom of the moving frame (51); one of the second moving members (52) is slidably connected to the guide rod (31); the other second moving member (52) is threadedly connected to the fourth electric screw (71); the moving frame (51) can be moved left and right between the two mounting frames (41) by driving the fourth electric screw (71).

9. The gravure plate roller detection device according to claim 8, characterized in that: The first chamber (64) is filled with hydraulic oil, and the second piston plate (626) can squeeze the hydraulic oil in the first chamber (64), so that the hydraulic oil can pass through the drainage pipe (623) and enter the interior of the proportional valve (624). The hydraulic oil entering the interior of the proportional valve (624) can evenly enter the interiors of the four drainage pipes (611).

10. A method for detecting a gravure roller, wherein the method uses the gravure roller detection device according to claim 9 to detect the gravure roller, wherein: The following steps are involved: S1: first, the distance between the two mounting frames (41) is adjusted by driving the third electric screw (32) to match the length of the gravure printing plate roller, and then the two ends of the gravure printing plate roller to be inspected are respectively placed between two support rollers (44) on two mounting plates (43) for support; S2: adjusting the detection position of the dial indicator (9) and the contact degree between the detection contact (6) and the surface of the gravure printing plate roller by driving the first electric screw (81) and the second electric screw (83); S3: starting the driving motor (47) to rotate, driving the gravure printing plate roller on the supporting roller (44) to rotate, so that the dial indicator (9) can detect the coaxiality; S4: driving the fourth electric screw (71) to move the movable frame (51) from the vicinity of one mounting frame (41) to the vicinity of another mounting frame (41), so that the dial indicator (9) can detect the straightness of the gravure plate roller; S5: While detecting the straightness and coaxiality, the rolling ball (610) will rotate when encountering a surface defect, and the surface defect detection is achieved through the conductive signal of the first conductive sheet (619) and the second conductive sheet (620).

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