CN112475926A - Method for marking and eliminating defects of micro-channel aluminum flat tube - Google Patents
Method for marking and eliminating defects of micro-channel aluminum flat tube Download PDFInfo
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- CN112475926A CN112475926A CN202011221117.4A CN202011221117A CN112475926A CN 112475926 A CN112475926 A CN 112475926A CN 202011221117 A CN202011221117 A CN 202011221117A CN 112475926 A CN112475926 A CN 112475926A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/06—Metal-working plant comprising a number of associated machines or apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
- B07C5/3412—Sorting according to other particular properties according to a code applied to the object which indicates a property of the object, e.g. quality class, contents or incorrect indication
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/361—Processing or control devices therefor, e.g. escort memory
- B07C5/362—Separating or distributor mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/38—Collecting or arranging articles in groups
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D41/00—Application of procedures in order to alter the diameter of tube ends
- B21D41/04—Reducing; Closing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D21/00—Machines or devices for shearing or cutting tubes
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Abstract
The invention discloses a method for marking and eliminating defects of a micro-channel aluminum flat tube, which is characterized by comprising the following steps of: A) discharging; B) flaw detection and marking; C) necking, cutting and snapping; D) alarming and eliminating the defective aluminum flat tube; E) and (6) collecting and sorting. The invention has the advantages of simple method, stable operation, low equipment investment cost and convenient maintenance; the intelligent recognition defect position to mark its position, combine the length that the scale cut off, automatically carry out the automation to discerning the aluminum flat tube of defect and reject, the cost of using manpower sparingly improves the degree of automation of production line, avoids manpower resources's intermittent type nature idle.
Description
Technical Field
The invention belongs to the technical field of micro-channel aluminum flat tube production equipment, and particularly relates to a micro-channel aluminum flat tube defect marking and removing method.
Background
The microchannel aluminum flat tube, also called a parallel flow aluminum flat tube, is a thin-wall porous flat tubular material which is prepared by adopting a refined aluminum bar, hot extrusion and surface zinc spraying anti-corrosion treatment, and is used as a pipeline part for bearing a novel environment-friendly refrigerant and is forced to be used on an automobile air conditioning system at first (the European Union is regulated to 1996, and the China is regulated to 2002). The micro-channel aluminum flat tube is internally provided with a channel for the circulation of the refrigerant, so that the refrigerant circulates in an air conditioning system or a heat exchange device, thereby playing a role in heat exchange. The micro-channel aluminum flat tube is an important component which directly influences the effect of the air-conditioning heat exchanger. Because the micro-channel aluminum flat tube product has high technical content and great production difficulty, only a few manufacturers such as Haidelu, Mitsubishi and gulhe in Japan, Korea and the like in Norway are produced in the world before 2010, the production technology is basically monopolized by the manufacturers, domestic enterprises have no capacity to produce the micro-channel aluminum flat tube product, and the micro-channel aluminum flat tube product can only be obtained from foreign manufacturers mastering the production technology of the micro-channel aluminum flat tube product, wherein the foreign manufacturers are arranged in the exclusive subsidiary company of China or directly imported. After 2010, domestic enterprises are continuously and deeply researching and developing the technology of the micro-channel aluminum flat tubes, a large number of domestic micro-channel aluminum flat tubes are put on the market, and a large number of cross-sectional structures, production equipment, processes and the like of the micro-channel aluminum flat tubes are known to technical personnel and the public in the forms of patent documents, periodicals and magazines and the like. However, the yield of the micro-channel aluminum flat tube is generally low, and the reasons for the defects mainly appear in a continuous extrusion process and a necking process, which seriously affect the economic benefit of enterprises, but the technical innovation thereof cannot be realized in a short time. Therefore, under the technical condition that the yield of the micro-channel aluminum flat tube cannot be obviously improved, how to efficiently detect out unqualified products and eliminate the unqualified products before packaging and delivery becomes an important control factor for a micro-channel aluminum flat tube production enterprise to finish order marking. In the prior art, the microchannel aluminum flat tube is subjected to continuous extrusion, zinc is sprayed on the surface of the microchannel aluminum flat tube, and the microchannel aluminum flat tube is subjected to roll packaging (called as a flat tube roll) after being cooled and marked with defects, the defective part is marked by a marking pen, so that the production progress and the equipment maintenance are not influenced, the defective part and the qualified part of the aluminum flat tube are rolled together, then the aluminum flat tube is put into a supporting plate for storage, the aluminum flat tube is cut to length when an order is required to be cut off, the microchannel aluminum flat tube with an absent part after the aluminum flat tube is cut to length is picked out in a manual observation mode, the production efficiency is low, the labor cost is increased, the work is low, and when an order is absent in a production enterprise of the microchannel aluminum flat.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems that in the prior art, after continuous extrusion, zinc spraying on the surface, cooling and defect marking, the micro-channel aluminum flat tube is coiled and packaged (called as a flat tube coil), the defect part is marked by a marking pen, in order to not influence the production progress and the convenience of equipment maintenance, the defect part of the aluminum flat tube and the qualified part are coiled together, then the aluminum flat tube is put into a supporting plate for storage, the micro-channel aluminum flat tube with the gap part after the micro-channel aluminum flat tube is cut to length is cut off when an order is needed, the micro-channel aluminum flat tube with the gap part after the micro-channel aluminum flat tube is cut to length is picked out by adopting a manual observation mode, the production efficiency is low, the labor cost is increased, the work is tedious, and the labor is intermittently idle when an order is lacked by a micro-channel aluminum flat tube production enterprise, and the like, the invention aims to provide a method for marking, the equipment investment cost is low, and the maintenance is convenient; the intelligent recognition defect position to mark its position, combine the length that the scale cut off, automatically carry out the automation to discerning the aluminum flat tube of defect and reject, the cost of using manpower sparingly improves the degree of automation of production line, avoids manpower resources's intermittent type nature idle.
2. Technical scheme
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for marking and eliminating defects of a micro-channel aluminum flat tube is characterized by comprising the following steps:
A) discharging, namely fixing the flat pipe coil on a discharging frame for continuous discharging, and correcting the conveying direction of the flat aluminum pipe belt into horizontal motion through a pressing step and a correcting step;
B) carrying out flaw detection and marking, namely carrying out flaw detection on the aluminum flat pipe strip subjected to the correction step, setting an initial measuring position of the aluminum flat pipe strip subjected to the flaw detection step, wherein the initial measuring position is used as the end part of a first aluminum flat pipe cut to length, and carrying out first length measurement on the length of the aluminum flat pipe strip subjected to the flaw detection step from the initial measuring position;
marking the detected defect part during flaw detection, and measuring the length of the defect part by a second length meter;
calculating the distance between the head and the tail of two adjacent defect parts;
calculating the distance between the initial position with the defect and the initial metering position, taking the length of the fixed-length aluminum flat tubes as a unit, starting to sort and number the aluminum flat tubes cut by the first fixed length, and calculating the sequence number of the aluminum flat tubes with the defect parts after the fixed length cutting;
C) necking, cutting and breaking, wherein the aluminum flat pipe belt intermittently runs according to a set size, the aluminum flat pipe belt runs forwards by the set size in each action, the necking knife assembly performs necking operation on the edge of the aluminum flat pipe belt, and the slitting knife assembly performs beveling on the necking central line of the aluminum flat pipe; conveying the aluminum flat pipe belt to a notch breaking device, breaking the aluminum flat pipe from the notch, and resetting the breaking device; recording the times of actions of the necking tool assembly or the cutting tool assembly or the notch snapping device, and comparing the recorded times with the serial number of the aluminum flat tube with the defect part cut in the fixed length mode in the step B); conveying the broken flat aluminum pipe to the next station by a conveyer belt;
D) alarming and eliminating the defective aluminum flat tube; when the serial number of the aluminum flat tube after the stretch breaking is the aluminum flat tube with the defect part, a CCD camera system is adopted to photograph the aluminum flat tube, a qualified aluminum flat tube pattern is input into the CCD camera system in advance, the system identifies the aluminum flat tube with the defect mark after being compared with the qualified aluminum flat tube pattern in the system, the aluminum flat tube is judged to be unqualified, the system alarms and records the detection times, and a turnover mechanism rotates in the direction perpendicular to the movement direction of the aluminum flat tube to lift the aluminum flat tube with the defect part; the qualified flat aluminum pipes cannot be lifted when passing through the turnover mechanism, and are counted and then conveyed to the next station through the conveying belt;
E) collecting and arranging, wherein the qualified aluminum flat tubes obtained in the step D) are conveyed by a conveying belt to enter a collecting and aligning device for arranging.
In a specific embodiment of the present invention, in the step D), a qualified aluminum flat tube pattern is input in advance into the CCD camera system as an aluminum flat tube without a mark, and the necking ports at two ends of the aluminum flat tube are in a necking form meeting the order requirement, and if the necking port of the aluminum flat tube photographed by the CCD camera system is inconsistent with the pattern preset by the system during the comparison, the determination is rejected.
In a specific embodiment of the invention, the device used in the step B) of detecting and marking is a multifunctional eddy current flaw detector, and the eddy current flaw detector comprises a base and a control mechanism; the detection device comprises a base, a first probe fixing seat, a second probe fixing seat, a first detection probe and a second detection probe, wherein the first probe fixing seat and the second probe fixing seat are arranged in the middle of the base, the first detection probe and the second detection probe of the same specification are respectively installed in the first probe fixing seat and the second probe fixing seat, the size of the detection probes is larger than the size of the section of a detected metal bar, the first detection probe and the second detection probe are arranged in a staggered mode in the direction of the section of the metal bar, and a channel formed by the edges of the; the first detection probe and the second detection probe are electrically connected with the control mechanism; the control mechanism is in signal connection with the length metering device and the marking device; the detection mechanism is also connected with an acousto-optic alarm device, and when the length metering device detects that the defect length of the aluminum flat tube exceeds a preset value, the acousto-optic alarm device is started to remind an operator to check the operation condition of the equipment; the bottom parts of the first probe fixing base and the second probe fixing base are provided with horizontal sliding guide rails, and the side surfaces of the first probe fixing base and the second probe fixing base are provided with vertical sliding guide rails, so that the first probe fixing base and the second probe fixing base move in the horizontal direction along the horizontal sliding guide rails and move in the vertical direction along the vertical sliding guide rails, and the distance or the size of a metal bar channel is adjusted; the marking device comprises a rack, a horizontal carrier roller arranged on the rack and a marking pen above the horizontal carrier roller, and the marking pen is connected with an output shaft gear of the motor and moves up and down; the motor is connected with the control mechanism; the upper portion of the base is further provided with a universal tray and a limiting screw, the middle of the universal tray is provided with a first probe fixing seat and a second probe fixing seat, and two ends of the universal tray are provided with vertical straightening wheels.
In a specific embodiment of the invention, the device used in the step D) of alarming and rejecting the defective aluminum flat tube comprises a rejecting device, a CCD camera system and an audible and visual alarm; the device comprises a removing device and a control device, wherein the removing device comprises a first conveying belt and two rotating discs which are respectively arranged at two ends of the first conveying belt, and the running direction of the first conveying belt is the same as the moving direction of the flat aluminum pipe belt; the rotary tables comprise rotating shafts, supporting strips, couplers and servo motors, the rotating shafts of the two rotary tables are connected through the couplers, the rotating shafts are connected with the servo motors, and the supporting strips are arranged in a radial manner along the outer rings of the rotating shafts; the angle range of two adjacent support bars is 15-30 degrees; the CCD photographic system comprises three CCD cameras, one CCD camera is arranged above the first conveying belt, and the other two CCD cameras are arranged at two ends of the aluminum flat pipe; the sound and light alarm device is connected with the CCD camera system.
In a specific embodiment of the invention, the collecting device used in the E) collecting and sorting process includes a second conveyer belt and a sorting device, the moving direction of the second conveyer belt is horizontally perpendicular to the moving direction of the flat aluminum pipe belt, the sorting device is arranged at the end of the moving direction of the second conveyer belt, the sorting device includes a bottom plate, a first baffle, a support plate, a limiting slider and a second baffle, the support plate includes a first support plate and a second support plate, the bottom plate is provided with a first slide way, the lower ends of the first support plate and the second support plate are provided with a first protrusion, the first protrusion is inserted into the first slide way, the first support plate and the second support plate are parallel to the first baffle and are vertically arranged on the bottom plate, so that the length confirmation of the flat aluminum pipes with different sizes is facilitated, the same end of the upper surfaces of the first support plate and the second support plate is provided with a second protrusion, a second slide way is arranged on the upper surface parallel to the bottom of the second bulge, a limiting slide block is arranged on the second slide way, and a connecting rod is arranged between the two limiting slide blocks on the first supporting plate and the second supporting plate; the second baffle is an independently arranged flat plate and is used for pushing one end of the aluminum flat tube to enable the other end of the aluminum flat tube to be aligned to the first baffle, and meanwhile, whether the lengths of the aluminum flat tubes are consistent or not is detected.
3. Advantageous effects
Compared with the prior art, the invention has the beneficial effects that: the method is simple, the operation is stable, the equipment investment cost is low, and the maintenance is convenient; the intelligent recognition defect position to mark its position, combine the length that the scale cut off, automatically carry out the automation to discerning the aluminum flat tube of defect and reject, the cost of using manpower sparingly improves the degree of automation of production line, avoids manpower resources's intermittent type nature idle.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of the structure of the multi-functional eddy current flaw detector of the present invention.
FIG. 2 is a schematic diagram of the position relationship between the channel and the first and second detecting probes.
FIG. 3 is a schematic view of the mechanism of the marking device of the present invention.
FIG. 4 is a schematic view of the eliminating device and CCD camera system of the present invention.
Fig. 5 is a schematic view of the structure of the turntable of the present invention.
Fig. 6 is a schematic diagram of a front view structure of the finishing device.
FIG. 7 is a schematic top view of the collating device of the present invention.
In the figure: 1-a base; 2-a first probe fixing seat; 3-a second probe fixing seat; 4-a first detection probe; 5-a second detection probe; 6-channel; 7-a length metering device; 8-a marking device; 9-horizontal sliding guide rail; 10-vertical sliding guide rail; 11-a frame; 12-horizontal carrier roller; 13-a marker pen; 14-an electric motor; 15-a universal tray; 16-a limit screw; 17-straightening wheels; 18-a first conveyor belt; 19-a rotating shaft; 20-supporting strips; 21-a coupler; 22-a servo motor; 23-a CCD camera; 24-a second conveyor belt; 25-a base plate; 26-a first baffle; 27-a first support plate; 28-a limiting slide block; 29-a second baffle; 30-a first slide; 31-a second protrusion; 32-a second slide; 33-a connecting rod; 34-second support plate.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, not all embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the invention.
In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A method for marking and eliminating defects of a micro-channel aluminum flat tube is characterized by comprising the following steps:
A) discharging, namely fixing the flat pipe coil on a discharging frame for continuous discharging, and correcting the conveying direction of the flat aluminum pipe belt into horizontal motion through a pressing step and a correcting step;
B) carrying out flaw detection and marking, namely carrying out flaw detection on the aluminum flat pipe strip subjected to the correction step, setting an initial measuring position of the aluminum flat pipe strip subjected to the flaw detection step, wherein the initial measuring position is used as the end part of a first aluminum flat pipe cut to length, and carrying out first length measurement on the length of the aluminum flat pipe strip subjected to the flaw detection step from the initial measuring position;
marking the detected defect part during flaw detection, and measuring the length of the defect part by a second length meter;
calculating the distance between the head and the tail of two adjacent defect parts;
calculating the distance between the initial position with the defect and the initial metering position, taking the length of the fixed-length aluminum flat tubes as a unit, starting to sort and number the aluminum flat tubes cut by the first fixed length, and calculating the sequence number of the aluminum flat tubes with the defect parts after the fixed length cutting;
C) necking, cutting and breaking, wherein the aluminum flat pipe belt intermittently runs according to a set size, the aluminum flat pipe belt runs forwards by the set size in each action, the necking knife assembly performs necking operation on the edge of the aluminum flat pipe belt, and the slitting knife assembly performs beveling on the necking central line of the aluminum flat pipe; conveying the aluminum flat pipe belt to a notch breaking device, breaking the aluminum flat pipe from the notch, and resetting the breaking device; recording the times of actions of the necking tool assembly or the cutting tool assembly or the notch snapping device, and comparing the recorded times with the serial number of the aluminum flat tube with the defect part cut in the fixed length mode in the step B); conveying the broken flat aluminum pipe to the next station by a conveyer belt;
D) alarming and eliminating the defective aluminum flat tube; when the serial number of the aluminum flat tube after the stretch breaking is the aluminum flat tube with the defect part, a CCD camera 23 system is adopted to photograph the aluminum flat tube, a qualified aluminum flat tube pattern is input into the CCD camera 23 system in advance, after the pattern is compared with the qualified aluminum flat tube pattern in the system, the aluminum flat tube with the defect mark is identified by the system and is judged to be unqualified, the system alarms and records the detection times, and the turnover mechanism rotates in the direction perpendicular to the movement direction of the aluminum flat tube to lift the aluminum flat tube with the defect part; the qualified flat aluminum pipes cannot be lifted when passing through the turnover mechanism, and are counted and then conveyed to the next station through the conveying belt;
E) collecting and arranging, wherein the qualified aluminum flat tubes obtained in the step D) are conveyed by a conveying belt to enter a collecting and aligning device for arranging.
And D), inputting a qualified aluminum flat pipe pattern into the CCD camera 23 system in advance as an aluminum flat pipe without a mark, simultaneously enabling the necking at two ends of the aluminum flat pipe to be in a necking form meeting the order requirement, and judging that the aluminum flat pipe is unqualified if the necking of the aluminum flat pipe photographed by the CCD camera 23 system is inconsistent with the pattern preset by the system during comparison.
As shown in fig. 1 to 3, the device used in the B) flaw detection and marking step is a multifunctional eddy current flaw detector, and the eddy current flaw detector comprises a base 1 and a control mechanism; a first probe fixing seat 2 and a second probe fixing seat 3 are arranged in the middle of a base 1, a first detection probe 4 and a second detection probe 5 of the same specification are respectively installed in the first probe fixing seat 2 and the second probe fixing seat 3, the size of the detection probes is larger than the size of the section of a detected metal bar, the first detection probe 4 and the second detection probe 5 are arranged in a staggered mode in the direction of the section of the metal bar, and a channel 6 formed by the edges of the two detection probes is slightly larger than the section of the metal bar; the first detection probe 4 and the second detection probe 5 are electrically connected with the control mechanism; a length measuring device 7 and a marking device 8 are arranged on the base 1, and a control mechanism is in signal connection with the length measuring device 7 and the marking device 8; the detection mechanism is also connected with an acousto-optic alarm device, and when the length metering device 7 detects that the defect length of the aluminum flat tube exceeds a preset value, the acousto-optic alarm device is started to remind an operator to check the operation condition of the equipment; the bottom parts of the first probe fixing seat 2 and the second probe fixing seat 3 are provided with horizontal sliding guide rails 9, and the side surfaces of the first probe fixing seat 2 and the second probe fixing seat 3 are provided with vertical sliding guide rails 10, so that the first probe fixing seat 1 and the second probe fixing seat 3 move in the horizontal direction along the horizontal sliding guide rails 9 and move in the vertical direction along the vertical sliding guide rails 10, and the distance or the size of the metal bar channel 6 is adjusted; the marking device 8 comprises a frame 11, a horizontal carrier roller 12 arranged on the frame 11 and a marking pen 13 above the horizontal carrier roller 12, wherein the marking pen 13 is connected with an output shaft gear of a motor 14 and moves up and down; the motor 14 is connected with the control mechanism; the upper portion of the base 1 is further provided with a universal tray 15 and a limiting screw 16, the middle portion of the universal tray 15 is provided with a first probe fixing seat 2 and a second probe fixing seat 3, and two ends of the universal tray 15 are provided with vertical straightening wheels 17.
As shown in fig. 4 and 5, D) the device used in the step of alarming and rejecting the defective flat aluminum tube includes a rejecting device, a CCD camera system and an audible and visual alarm (not shown); the device comprises a removing device and a control device, wherein the removing device comprises a first conveying belt 18 and two rotating discs which are respectively arranged at two ends of the first conveying belt 18, and the running direction of the first conveying belt 18 is the same as the moving direction of an aluminum flat pipe belt; the turnplates comprise rotating shafts 19, supporting strips 20, couplers 21 and servo motors 22, the rotating shafts 19 of the two turnplates are connected through the couplers 21, the rotating shafts 19 are connected with the servo motors 22, and the supporting strips 20 are arranged in a radial mode along the outer rings of the rotating shafts 19; the angle range of two adjacent support bars 20 is 15-30 degrees; the CCD photographic system comprises three CCD cameras 23, one CCD camera 23 is arranged above the first conveying belt 18, and the other two CCD cameras are arranged at the two ends of the aluminum flat pipe; the sound and light alarm device is connected with the CCD camera system.
As shown in fig. 6 and 7, E) the collecting device used in the collecting and finishing process includes a second conveyer belt 24 and a finishing device, the moving direction of the second conveyer belt 24 is horizontal and perpendicular to the moving direction of the aluminum flat tube belt, the finishing device is arranged at the end of the moving direction of the second conveyer belt 24, the finishing device includes a bottom plate 25, a first baffle 26, a support plate, a limit slider 28 and a second baffle 29, the support plate includes a first support plate 27 and a second support plate 34, a first slide way 30 is arranged on the bottom plate 25, a first protrusion is arranged at the lower end of the first support plate 27 and the second support plate 34, the first protrusion is inserted into the first slide way 30, the first support plate 27 and the second support plate 34 are parallel to the first baffle 26 and are vertically arranged on the bottom plate 25, the length confirmation of the aluminum flat tubes with different sizes is convenient, the second protrusion 31 is arranged at the same end of the upper surfaces of the first support plate 27 and, a second slide way 32 is arranged on the upper surface parallel to the bottom of the second protrusion 31, a limit slide block 28 is arranged on the second slide way 32, and a connecting rod 33 is arranged between the two limit slide blocks 28 on the first support plate 27 and the second support plate 34; the second baffle 29 is an independently arranged flat plate, and is used for pushing one end of the aluminum flat tube to align the other end of the aluminum flat tube at the first baffle 26, and detecting whether the lengths of the aluminum flat tubes are consistent or not.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. A method for marking and eliminating defects of micro-channel flat aluminum tubes is characterized by comprising the following steps: the method comprises the following steps:
A) discharging, namely fixing the flat pipe coil on a discharging frame for continuous discharging, and correcting the conveying direction of the flat aluminum pipe belt into horizontal motion through a pressing step and a correcting step;
B) carrying out flaw detection and marking, namely carrying out flaw detection on the aluminum flat pipe strip subjected to the correction step, setting an initial measuring position of the aluminum flat pipe strip subjected to the flaw detection step, wherein the initial measuring position is used as the end part of a first aluminum flat pipe cut to length, and carrying out first length measurement on the length of the aluminum flat pipe strip subjected to the flaw detection step from the initial measuring position;
marking the detected defect part during flaw detection, and measuring the length of the defect part by a second length meter;
calculating the distance between the head and the tail of two adjacent defect parts;
calculating the distance between the initial position with the defect and the initial metering position, taking the length of the fixed-length aluminum flat tubes as a unit, starting to sort and number the aluminum flat tubes cut by the first fixed length, and calculating the sequence number of the aluminum flat tubes with the defect parts after the fixed length cutting;
C) necking, cutting and breaking, wherein the aluminum flat pipe belt intermittently runs according to a set size, the aluminum flat pipe belt runs forwards by the set size in each action, the necking knife assembly performs necking operation on the edge of the aluminum flat pipe belt, and the slitting knife assembly performs beveling on the necking central line of the aluminum flat pipe; conveying the aluminum flat pipe belt to a notch breaking device, breaking the aluminum flat pipe from the notch, and resetting the breaking device; recording the times of actions of the necking tool assembly or the cutting tool assembly or the notch snapping device, and comparing the recorded times with the serial number of the aluminum flat tube with the defect part cut in the fixed length mode in the step B); conveying the broken flat aluminum pipe to the next station by a conveyer belt;
D) alarming and eliminating the defective aluminum flat tube; when the serial number of the aluminum flat tube after the stretch breaking is the aluminum flat tube with the defect part, a CCD camera system is adopted to photograph the aluminum flat tube, a qualified aluminum flat tube pattern is input into the CCD camera system in advance, the system identifies the aluminum flat tube with the defect mark after being compared with the qualified aluminum flat tube pattern in the system, the aluminum flat tube is judged to be unqualified, the system alarms and records the detection times, and a turnover mechanism rotates in the direction perpendicular to the movement direction of the aluminum flat tube to lift the aluminum flat tube with the defect part; the qualified flat aluminum pipes cannot be lifted when passing through the turnover mechanism, and are counted and then conveyed to the next station through the conveying belt;
E) collecting and arranging, wherein the qualified aluminum flat tubes obtained in the step D) are conveyed by a conveying belt to enter a collecting and aligning device for arranging.
2. The method for marking and eliminating the defects of the micro-channel aluminum flat tubes according to claim 1, which is characterized in that: and D), inputting a qualified aluminum flat tube pattern into the CCD camera system in advance in the step D) as an aluminum flat tube without a mark, simultaneously enabling the necking at two ends of the aluminum flat tube to be in a necking form meeting the order requirement, and judging that the aluminum flat tube is unqualified if the necking of the aluminum flat tube photographed by the CCD camera system is inconsistent with the pattern preset by the system during comparison.
3. The method for marking and eliminating the defects of the micro-channel aluminum flat tubes according to claim 1, which is characterized in that: d) the device used in the step of alarming and rejecting the defective aluminum flat tube comprises a rejecting device, a CCD camera system and an audible and visual alarm; the device comprises a removing device and a control device, wherein the removing device comprises a first conveying belt and two rotating discs which are respectively arranged at two ends of the first conveying belt, and the running direction of the first conveying belt is the same as the moving direction of the flat aluminum pipe belt; the rotary tables comprise rotating shafts, supporting strips, couplers and servo motors, the rotating shafts of the two rotary tables are connected through the couplers, the rotating shafts are connected with the servo motors, and the supporting strips are arranged in a radial manner along the outer rings of the rotating shafts; the angle range of two adjacent support bars is 15-30 degrees; the CCD photographic system comprises three CCD cameras, one CCD camera is arranged above the first conveying belt, and the other two CCD cameras are arranged at two ends of the aluminum flat pipe; the sound and light alarm device is connected with the CCD camera system.
4. The method for marking and eliminating the defects of the micro-channel aluminum flat tubes according to claim 1, which is characterized in that: e) the collecting device used in the collecting and finishing comprises a second conveying belt and a finishing device, the moving direction of the second conveying belt is horizontally vertical to the moving direction of the aluminum flat pipe belt, the finishing device is arranged at the tail end of the moving direction of the second conveying belt and comprises a bottom plate, a first baffle, a support plate, a limiting slide block and a second baffle, the support plate comprises a first support plate and a second support plate, a first slide way is arranged on the bottom plate, a first bulge is arranged at the lower end of the first support plate and the lower end of the second support plate and is inserted into the first slide way, the first support plate and the second support plate are parallel to the first baffle and are vertically arranged on the bottom plate, the length confirmation of the aluminum flat pipes with different sizes is facilitated, the same end of the upper surfaces of the first support plate and the second support plate is provided with a second bulge, and the second slide way is arranged on the upper surface parallel to the bottom of the, a limiting slide block is arranged on the second slide way, and a connecting rod is arranged between the two limiting slide blocks on the first supporting plate and the second supporting plate; the second baffle is an independently arranged flat plate and is used for pushing one end of the aluminum flat tube to enable the other end of the aluminum flat tube to be aligned to the first baffle, and meanwhile, whether the lengths of the aluminum flat tubes are consistent or not is detected.
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