CN211576982U - Defect detection mechanism and roller surface cleaning scraper with same - Google Patents
Defect detection mechanism and roller surface cleaning scraper with same Download PDFInfo
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- CN211576982U CN211576982U CN201921756428.3U CN201921756428U CN211576982U CN 211576982 U CN211576982 U CN 211576982U CN 201921756428 U CN201921756428 U CN 201921756428U CN 211576982 U CN211576982 U CN 211576982U
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Abstract
A defect detection mechanism and a roller surface cleaning scraper with the defect detection mechanism are disclosed, wherein the defect detection mechanism is provided with a PLC control system and a movable detection sheet, and is arranged on a detection sheet mounting bracket, and the other end of the detection sheet mounting bracket is embedded into a detection sheet mounting clamping groove of the movable bracket; reset springs with pretightening force are symmetrically arranged between the upper arm of the movable support and the upper end surface of the detection rotating arm, the lower arm of the movable support and the measurement arm connected with the bottom surface of the upper end surface in the detection rotating arm are in a contact state, the end head of the lower arm of the movable support is provided with a blocking block, and a photoelectric detection element is arranged at the end head of the measurement arm of the detection rotating arm in a matching way; and the photoelectric detection element is electrically connected with the PLC control system. The utility model discloses sensitivity and reliability are higher, do not damage detection mechanism when receiving stubborn foreign matter, and detection mechanism has little slewing mechanism, accomplishes that stubborn foreign matter card receives the spring when detecting the piece and stretches out and draws back, and protection detection mechanism's detection piece, detecting element do not receive external force and damage.
Description
Technical Field
The utility model relates to a hot-galvanize and cold rolling high-speed production line area clearance scraper technical field indicates a defect detection machine and constructs roller roll surface clearance scraper that has defect detection very much.
Background
The roller surface scraper used in the traditional continuous production line adopts an integral scraper which is wider than the roller surface or a small scraper with a narrow section which moves back and forth on a track to clean the roller surface, but the cleaning effect is poor, and a plurality of problems exist, firstly, the integral scraper which is wider than the roller surface is a scraper which is driven by a cylinder, an electric cylinder, a hydraulic cylinder and the like or driven by an air bag, and the cleaning effect has the problems that the integral blade of the scraper has certain rigidity, the contact pressure at each position of the roller surface is different after the cutting edge integrally contacts the roller surface, the integral blade has the defects of premature wear of local points after being heated or deformed, the cleaning effect is poor, the integral wide scraper driven by the air bag can improve a plurality of the defects, but the influence caused by the wide scraper still exists, and the problem that the contact pressure of the wide scraper on the roller surface is basically equal or the contact pressure is uniform can not be fundamentally solved, after the scraper is used for a period of time, the scraper deforms, the cutting edge becomes dull, the effect of cleaning the roller surface by the scraper is lost, and the deformation of the cutting edge of the scraper is too large in serious conditions, so that the influence of damaging the roller surface by the cutting edge of the scraper is also caused.
Particularly, the length of the roller body of the roller used in most of cold rolling high-speed production lines reaches 1500-2000mm, the longer the roller body is, the whole wide scraper is easily damaged by the influence of deformation or uneven stress of the scraper, or the contact pressure is not enough, the parts needing to be cleaned are not cleaned, and the damaged roller surface is excessively cleaned in places without cleaning.
Under narrow and normal process conditions of a unit, dust or other foreign matters cleaned by the scraper are not easy to clean out in time, the scraper dust collecting box cannot play a good role, and the roller surface damage or color difference defect along the circumference of the roller in the radial direction is formed on the roller surface when the roller is used for a long time due to the fact that the foreign matters cleaned after the blade is tightly attached to the roller surface are unreasonably designed and clamped between the blade and the roller surface.
The roller with the convexity on the roller is influenced by the convexity of the roller surface, the contact pressure of the blade of the scraper is large in the middle, the contact pressure of the two ends is small or not in contact, the blade of the scraper is unevenly stressed and damaged early, the local pressure of the middle contact is large, when the two sides and the middle contact part are consistent, the blades at the two ends are just used, but the blade in the middle is in a scrapped state, if the middle of the roller surface is affected by the damage of the blade due to untimely replacement, the roughness is reduced, and the roller surface coating is damaged or scratches the roller surface.
The small narrow-section scrapers moving back and forth are less used at present, and the overall problem is that the main problems of the narrow-section scrapers in the use process are as follows: firstly, the scraper moving speed and the roller rotating speed are higher in requirements on cleaning the roller surface, when foreign matters exist on the cleaning roller surface and are generated immediately, an automatic intelligent mode is not available, the scraper can only clean the point twice in a transverse moving mode, if the pressure for cleaning the point is small or the foreign matters are difficult to clean, the longer the time the foreign matters exist, the larger the influence on the quality of the produced product is, the product degradation or the waste products are generated after the judgment standard is exceeded, the production line can be decelerated or stopped when the defect is not processed in short-time inspection, and the influence on the production line is larger. Secondly, the ash receiving box cleaned by the narrow-section scraper is in a long strip shape and is in an integral structure state, and although the ash receiving box is used, the cleaned foreign matters or dust are in a free-falling mode, so that fine small particles can be taken away by the environmental factors and the air flow formed after the high-speed running of the strip steel and adsorbed on the surface of the roll again along with the surface of the roll, and secondary pollution is caused.
SUMMERY OF THE UTILITY MODEL
The utility model provides a defect detection mechanism and have defect detection mechanism's roller roll surface clearance scraper solves among the prior art a series of problems of the inhomogeneous production of contact pressure of the scraper that the broad width scraper exists on the roll surface and the problem that clearance cycle length and the unable thorough solution of slight particulate matter that narrow section scraper exists.
The technical proposal adopted by the utility model is that
A defect detection mechanism comprises a PLC control system, and comprises a movable detection sheet, wherein the movable detection sheet is arranged on a detection sheet mounting bracket, and the other end of the detection sheet mounting bracket is embedded into a detection sheet mounting clamping groove of the movable bracket; a movable bracket guide rod arranged on the upper arm of the movable bracket is sleeved in a movable bracket guide rod limiting rod arranged on the upper end surface of the detection rotating arm to form a guide device; the lower arm of the movable support and the measuring arm connected with the bottom surface of the upper end surface of the detection rotating arm are in a contact state, the end head of the lower arm of the movable support is provided with a blocking block, and the end head of the measuring arm of the detection rotating arm is provided with a photoelectric detection element in a matching way; and the photoelectric detection element is electrically connected with the PLC control system.
The detection mechanism protection cover is installed on the upper end face of the detection rotating arm.
The scraper operation device comprises a dust suction box and a scraper driving support connected with the dust suction box; the detection rotating arm is rotatably connected to a detection arm rotating support frame on the scraper driving support through a base mounting hole at the lower part of the detection rotating arm; and a scraper is arranged on the scraper driving support, one end of the scraper is in contact with the surface of the roller, the other end of the scraper is connected with a motor, and the motor is electrically connected with the PLC control system.
One end of the dust absorption pipeline support is connected with the motor and then follows the scraper, a dust absorption pipeline is arranged on the dust absorption pipeline support, one end of the dust absorption pipeline is connected with the dust absorption port, and the other end of the dust absorption pipeline is communicated with the dust absorption box; the dust absorption opening is arranged above the scraper.
The utility model discloses the mechanism that detects foreign matter device adopted is the flexible detection mechanism who has spring mechanism, has adjustable contact pressure and judges the photoelectric detection component of foreign matter, and sensitivity and reliability are higher to do not damage detection mechanism when having the foreign matter that receives stubborn, detection mechanism has little slewing mechanism, accomplishes that stubborn foreign matter card receives the spring when detecting the piece and stretches out and draws back, and protection detection mechanism's detection piece and detection component do not receive external force to damage.
Drawings
FIG. 1 is a schematic view of the structure of the operation state of the present invention;
fig. 2 is a top view of the present invention;
FIG. 3 is a front view of the present invention;
reference numbers in the figures: 1. strip steel; 2. a roller; 3. a scraper drive bracket; 4. a motor; 301. a defect detection mechanism; 302. a movable detection sheet; 303. the detection arm rotates the support frame; 3012. a detection sheet mounting bracket; 3013. detecting a sheet mounting hole; 3014. the detection sheet is provided with a clamping groove; 3015. a detection mechanism protective cover; 3016. a return spring; 3017. a photoelectric detection switch; 3018. a movable support; an upper arm, 30181; a lower arm 30182; 3019. a movable bracket guide rod; 3020. a movable bracket guide rod limiting rod; 3021. detecting a rotating arm; a measuring arm, 30211; 3022. rotating the base mounting hole; 401. a scraper; 402. a dust collection pipeline bracket; 403. a dust collection pipeline; 404. a dust suction opening of the dust suction pipe; 405. a dust collection box.
Detailed Description
The present invention and the effects thereof will be further explained with reference to the accompanying drawings and the detailed description.
Referring to fig. 2 and 3, a defect detecting mechanism comprises a PLC control system, the defect detecting mechanism 301 comprises a movable detecting plate 302, the movable detecting plate 302 is mounted on a detecting plate mounting bracket 3012 through a detecting plate mounting hole 3013 of the detecting plate mounting bracket 3012, and the other end of the detecting plate mounting bracket 3012 is embedded in a detecting plate mounting slot 3014 in the center of the movable bracket 3018; a reset spring 3016 with pretightening force is symmetrically installed between an upper arm 30181 of the movable support 3018 and the upper end face of the detection rotating arm 3021, and a movable support guide rod 3019 arranged on the upper arm 30181 of the movable support 3018 is sleeved in a movable support guide rod limiting rod 3020 arranged on the upper end face of the detection rotating arm 3021 to form a guide device; the movable support 3018 is forced by two reset springs 3016 to make the movable support 3018 close to the stressed end of the detecting rotating arm 3021, the movable support 3018 is affected by the stress of the springs to prevent the movable support 3018 from deflecting after being stressed, a sleeve consisting of a movable support guide rod 3019 and a movable support guide rod 3020 is connected between the movable support 3018 and the detecting rotating arm 3021 to limit the moving track of the movable support 3018, an accurate sensing movable detecting piece 302 is blocked by a foreign object and transmits the force to the movable support 3018, the lower arm 30182 of the movable support 3018 and the measuring arm 30211 connected to the bottom surface of the upper end face in the detecting rotating arm 3021 are in a contact state, the end of the lower arm 30182 of the movable support 3018 is installed with a blocking block, and a photoelectric detecting element 3017 is installed on the end of the measuring arm 30211 of the detecting rotating arm (3021); the photoelectric detection element 3017 is electrically connected to the PLC control system. After the movable support 3018 is pushed by the movable support 3018, the movable support 3018 moves backwards, the blocking block of the photoelectric detection switch moves backwards, the moving direction of the blocking block is consistent with the moving direction of the movable support 3018, and the blocking block cannot be detected by the photoelectric detection switch, and the roller surface is judged to have foreign matters, so that important cleaning is needed. The switch of the photoelectric detection switch is used as a signal source for judging whether the roller surface is abnormal or not, the running position and the running track of the scraper are driven, and when the scraper 401 is put into the device, the forced air suction fan is started to ensure that dust and foreign matters cleaned by the scraper 4 are sucked into the dust suction box 405 through the connected hose.
The detection mechanism cover 3015 is attached to the upper end surface of the detection rotary arm 3021. The spring mechanism which protects the detection mechanism and the effectiveness of the detection electronic component. Two rotary base mounting holes 3022 are formed in two ends of the rear portion of the detection rotary arm 3021, so that the detection rotary arm can rotate after being subjected to large abnormal thrust, and the integrity of the detection mechanism is protected.
Referring to fig. 1, a roll surface cleaning doctor with a defect detecting mechanism includes a roll 2, a strip 1 running on the roll surface of the roll 2 to be cleaned according to the direction of rotation of the roll shown in fig. 1, the strip 1 running horizontally away from the roll surface. A scraper running device is arranged on the side surface of the roller 2, and comprises a dust suction box 405 and a scraper driving bracket 3 connected with the dust suction box; the detection rotating arm 3021 is rotatably connected to the detection arm rotating support frame 303 on the scraper driving support 3 through a base mounting hole 3022 at the lower part of the detection rotating arm 3021; the scraper driving bracket 3 is provided with a scraper 401, one end of the scraper 401 is contacted with the surface of the roller 2, the other end of the scraper 401 is connected with a motor 4, and the motor 4 is electrically connected with a PLC control system.
One end of a dust suction pipeline support 402 is connected with the motor 4 and then follows the scraper 401, a dust suction pipeline 403 is arranged on the dust suction pipeline support 402, one end of the dust suction pipeline 403 is connected with a dust suction port 404, and the other end of the dust suction pipeline 403 is communicated with a dust suction box 405; the suction opening 404 is positioned above the blade 401. The dust box 405 can be taken out for cleaning when the scraper moves to the edge of the roller, and along with the throwing in or opening of the scraper, the dust suction pipe dust suction port 404 connected with the dust suction pipeline 403 moves along with the movement of the scraper support, so that synchronous action is kept, and dust and foreign matters cleaned by the dust suction fan of the dust suction pipeline adsorbing the scraper are ensured to fall into the dust box 405 when the scraper is thrown in.
Claims (4)
1. A defect detection mechanism comprises a PLC control system and is characterized in that the defect detection mechanism (301) comprises a movable detection sheet (302), the movable detection sheet (302) is installed on a detection sheet installation support (3012), and the other end of the detection sheet installation support (3012) is embedded into a detection sheet installation clamping groove (3014) of a movable support (3018); reset springs (3016) with pretightening force are symmetrically arranged between the upper end faces of an upper arm (30181) of the movable support (3018) and the detection rotating arm (3021), and a movable support guide rod (3019) arranged on the upper arm (30181) of the movable support (3018) is sleeved in a movable support guide rod limiting rod (3020) arranged on the upper end face of the detection rotating arm (3021) to form a guide device; the lower arm (30182) of the movable support (3018) and the measuring arm (30211) connected with the bottom surface of the upper end surface of the lower arm (3021) are in a contact state, a shielding block is arranged at the end head of the lower arm (30182) of the movable support (3018), and a photoelectric detection element (3017) is arranged at the end head of the measuring arm (30211) of the detecting rotating arm (3021) in a matching manner; and the photoelectric detection element (3017) is electrically connected with the PLC control system.
2. A defect detecting mechanism according to claim 1, wherein a detecting mechanism protecting cover (3015) is mounted on an upper end face of the detecting rotary arm (3021).
3. A roller surface cleaning scraper with a defect detection mechanism according to claim 1, comprising a roller, characterized in that a scraper running device is arranged on the side surface of the roller (2), and the scraper running device comprises a dust suction box (405) and a scraper driving bracket (3) connected with the dust suction box; the detection rotating arm (3021) is rotatably connected to a detection arm rotating support frame (303) on the scraper driving support (3) through a base mounting hole (3022) at the lower part of the detection rotating arm; the scraper (401) is installed on the scraper driving support (3), one end of the scraper (401) is in contact with the surface of the roller (2), the other end of the scraper is connected with the motor (4), and the motor (4) is electrically connected with the PLC control system.
4. The roller surface cleaning scraper of claim 3, characterized in that one end of the dust suction pipeline bracket (402) is connected with the motor (4) and then drives the scraper (401), the dust suction pipeline bracket (402) is provided with a dust suction pipeline (403), one end of the dust suction pipeline (403) is connected with the dust suction port (404), and the other end is communicated with the dust suction box (405); the dust suction port (404) is arranged above the scraper (401).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921756428.3U CN211576982U (en) | 2019-10-18 | 2019-10-18 | Defect detection mechanism and roller surface cleaning scraper with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921756428.3U CN211576982U (en) | 2019-10-18 | 2019-10-18 | Defect detection mechanism and roller surface cleaning scraper with same |
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| Publication Number | Publication Date |
|---|---|
| CN211576982U true CN211576982U (en) | 2020-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921756428.3U Active CN211576982U (en) | 2019-10-18 | 2019-10-18 | Defect detection mechanism and roller surface cleaning scraper with same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110726723A (en) * | 2019-10-18 | 2020-01-24 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Defect detection mechanism and roller surface cleaning scraper with same |
| CN116690314A (en) * | 2023-08-01 | 2023-09-05 | 合肥智谷机电科技有限公司 | Cutter damage detection device based on machine vision detects and compares |
-
2019
- 2019-10-18 CN CN201921756428.3U patent/CN211576982U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110726723A (en) * | 2019-10-18 | 2020-01-24 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Defect detection mechanism and roller surface cleaning scraper with same |
| CN116690314A (en) * | 2023-08-01 | 2023-09-05 | 合肥智谷机电科技有限公司 | Cutter damage detection device based on machine vision detects and compares |
| CN116690314B (en) * | 2023-08-01 | 2023-10-24 | 合肥智谷机电科技有限公司 | Cutter damage detection device based on machine vision detects and compares |
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