CN113134522B - Method and system for identifying steel strip weld and/or defects for producing saw blades - Google Patents
Method and system for identifying steel strip weld and/or defects for producing saw blades Download PDFInfo
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- CN113134522B CN113134522B CN202110422179.XA CN202110422179A CN113134522B CN 113134522 B CN113134522 B CN 113134522B CN 202110422179 A CN202110422179 A CN 202110422179A CN 113134522 B CN113134522 B CN 113134522B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 170
- 239000010959 steel Substances 0.000 title claims abstract description 170
- 238000000034 method Methods 0.000 title claims abstract description 77
- 230000007547 defect Effects 0.000 title claims abstract description 36
- 230000008569 process Effects 0.000 claims abstract description 39
- 238000004519 manufacturing process Methods 0.000 claims abstract description 23
- 238000005507 spraying Methods 0.000 claims abstract description 13
- 238000003801 milling Methods 0.000 claims abstract description 9
- 238000010791 quenching Methods 0.000 claims abstract description 7
- 230000000171 quenching effect Effects 0.000 claims abstract description 7
- 238000005096 rolling process Methods 0.000 claims abstract description 6
- 238000000926 separation method Methods 0.000 claims abstract description 5
- 230000003287 optical effect Effects 0.000 claims description 52
- 239000000463 material Substances 0.000 claims description 19
- 238000001514 detection method Methods 0.000 claims description 18
- 238000003466 welding Methods 0.000 claims description 14
- 230000008859 change Effects 0.000 claims description 10
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 210000003128 head Anatomy 0.000 description 23
- 239000002390 adhesive tape Substances 0.000 description 11
- 239000003973 paint Substances 0.000 description 11
- 239000013307 optical fiber Substances 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000010924 continuous production Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000007688 edging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013072 incoming material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
-
- 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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/26—Perforating, i.e. punching holes in sheets or flat parts
-
- 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
- B23D65/00—Making tools for sawing machines or sawing devices for use in cutting any kind of material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The present invention provides a method and system for identifying steel strip craters and/or defects used in the production of saw blades. The method comprises the following steps: step (A): before the tooth milling process, marking parts are arranged on the processed steel belt close to each welded junction position and/or each processing defect position, wherein the marking parts are through holes or grooves; step (B): in the tooth separation and/or quenching and/or rolling and/or code spraying and/or plastic embedding process, if the mark part on the advancing processed steel belt is detected, the processed steel belt stops advancing, and a first signal is sent out, wherein the first signal is a production line stop operation signal and/or an alarm signal.
Description
Technical Field
The invention relates to a method and a system for identifying steel strip welded junctions and/or defects used for producing saw blades, which are applied to saw blade production.
Background
In the production and processing of the steel belt for producing the bimetallic band saw blade, the working procedures of back material edging, laser welding, bright annealing, welded junction flattening, leveling and straightening, fixed-length material preparation, tooth milling, tooth dividing, quenching and tempering, sand blasting, rolling and straightening, code spraying, root band plastic embedding and the like are required to be sequentially carried out, wherein some band saw blade products can finish the working procedures after the code spraying step.
The incoming materials of the steel belts have larger or smaller length difference, and in the processing procedure of the band saw blade (such as the step of milling teeth and the like), dozens of rolls of the steel belts are often required to be processed together in batches, and the length of each roll of processed steel belts is ensured to be consistent, so that uninterrupted continuous production can be realized, and the production efficiency and the yield of products can be improved. Therefore, in the step of the stock preparation process, it is necessary to perform butt welding treatment on a plurality of steel strips to form a coil of steel strips, so that the length of each coil of steel strip is kept unchanged, and a plurality of process craters (or called weld seams) are formed on each coil of steel strip. Because special adjustment processing is needed at the process welded junctions in the subsequent processing (such as tooth separation, quenching tempering and rolling straightening steps), each welded junction needs to be marked, otherwise, processing equipment can be damaged or processing effect can be affected, and the process welded junctions need to be removed after the whole processing procedure is finished (such as code spraying or root band plastic embedding procedure). However, because the appearance of the process welded junction is very close to the steel strip body, the process welded junction is difficult to find in the processing process of the subsequent continuous production line for forming the process welded junction, so that the process welded junction cannot be specially treated, the condition that the steel strip is disordered in processing size in the subsequent processing process with the process welded junction is caused, the processing equipment is possibly damaged, the process welded junction is difficult to find in time to remove after the processing is finished, and the product is easy to discard and lose efficacy due to the existence of the process welded junction in the use process of a user.
In addition, the steel strip may have certain machining defects during the machining process. In some working procedures of band saw blade processing, if a processing defect found in the middle of the cutting is needed, a product line is needed to be stopped, material is fed in and fed out again, the cut part is welded by a welding machine, a welded junction is recorded on a working procedure card, a subsequent end working procedure is used for searching the welded junction according to the working procedure card and then removing the welded junction, and the feeding and discharging material in the processing process is very time-consuming and affects the production efficiency. In order to maintain the processing continuity, for the defect part which does not particularly influence the subsequent processing, the defects of the steel strip are always cut off and removed immediately, and the defects are uniformly found and removed when the product is processed to the end working procedure, if the processing defects are not found and removed in time in the end working procedure, the band saw blade product used by a user is scrapped and invalid.
At present, red adhesive tapes or paint is generally used for marking weld joints and processing defects in the production process of the band saw blade, one or more weld joints and processing defects of the band saw blade are recorded on a process card flowing along with the composite steel band, all subsequent processes must be checked and recorded in time before production, whether the steel band is provided with the adhesive tapes or paint is closely concerned, and if the adhesive tapes or paint is found, corresponding adjustment or treatment is carried out. When the steel strip flows to the last procedure and the welded junctions are required to be removed, the operator needs to watch the steel strip on line with naked eyes, find whether the welded junctions and defects remain in time, and stop the operation manually.
In the prior art, the following problems exist in the identification of welded junctions and processing defects by using red adhesive tapes or paint:
(1) In some processes, red adhesive tape or paint can affect processing, so that the red adhesive tape or paint needs to be cleaned or re-adhered, and deviation of the marking position is easy to occur, so that the processing size disorder is caused in the processing process of the subsequent process.
(2) The red adhesive tape or paint flows to a plurality of working procedures, and when the working procedures are processed, the situation that the adhesive tape and the paint are scratched and ground off is unavoidable, so that a process weld and defects are difficult to discover in time and even leak.
(3) The red tape or paint will flow through the heat treatment furnace of 1000 degrees more, so that the operator needs to recheck the position of the weld neck and defect and re-mark according to the reminding of the process card, resulting in deviation or omission of the mark position.
(4) When the process welded junction and the defect position need to be determined, red adhesive tapes or paint are mostly identified by adopting human eyes, so that the labor intensity is high, the intelligent degree is low, and when certain procedures are processed, the linear speed of a production line reaches 30-40m/min, all marks or process welded junctions are difficult to find and reject by human eyes, and omission exists.
Disclosure of Invention
The invention aims to solve the problems that the weld opening is marked by using a red adhesive tape or paint in the existing saw blade processing, and the weld opening and the processing defect are difficult to identify due to the processing defect, and provides a method and a system for identifying the weld opening and/or the defect of a steel strip for producing a saw blade.
In order to solve the technical problems, the invention adopts the following technical scheme: a method of identifying steel strip craters and/or defects for producing saw blades, comprising the steps of:
Step (A): before the tooth milling process of producing the saw blade, marking parts are arranged on the processed steel belt at positions close to each welded junction and/or positions close to each processing defect, wherein the marking parts are through holes or grooves;
Step (B): in the tooth separation and/or quenching and/or rolling and/or code spraying and/or plastic embedding process of the saw blade, if the mark part on the advancing processed steel belt is detected, the processed steel belt stops advancing, and a first signal is sent out, wherein the first signal is a production line stop operation signal and/or an alarm signal.
In the application, the through holes or the grooves are used as the marks, so that the marks are conveniently identified in the subsequent process, the problem of difficult identification caused by abrasion or scraping is not easy to occur, and the marks are not required to be re-marked even if the heat treatment furnace is used.
In the technical scheme, the tooth height of the saw blade is defined as h, the first side part is defined as the side part of the processed steel belt for forming saw teeth of the saw blade, and the second side part is defined as the side part of the processed steel belt opposite to the first side part;
The step (a) further comprises: the mark part is arranged on the processed steel strip near the weld junction position, and meanwhile, a through groove extending from the first side part to the second side part is arranged at the weld junction position, so that no welding material exists in the range of the processed steel strip, wherein the distance between the first side part and the first side part in the width direction of the processed steel strip is not less than h.
The applicant finds that saw teeth are needed to be machined on the first side of the steel belt in the tooth milling process, but because the welding position of the welding material has higher hardness, tools used for milling teeth are extremely easy to damage, therefore, in the application, the through groove is formed when the mark part is formed on the machined steel belt close to the welding position, and the material of the steel belt part needing to be machined at the tooth milling position is removed, so that the steps of forming the mark part and forming the through groove can be simultaneously performed, and the production efficiency is improved.
In the above technical solution, the method further includes
Step (C): and if the first signal is received in the code spraying and/or plastic embedding process of the saw blade production, cutting off the processed steel belt at the weld junction position and the processing defect position of the processed steel belt.
In the application, the size of a coil of steel belt is not required to be constant during the working procedures of code spraying and plastic embedding, so that the processed steel belt can be cut off, and the influence on the product quality is avoided.
In the above technical solution, the method for detecting the identification portion in the step (B) includes: measuring the distance d2 of the processed steel belt by using a distance measuring sensor positioned above or below the processed steel belt, and judging that the identification part is detected if d2 is larger than a preset distance threshold value; or (b)
The identification part is a through hole, and the method for detecting the identification part in the step (B) comprises the following steps: transmitting light to the processed steel belt by utilizing an optical signal transmitting unit SQ1 positioned above the processed steel belt, judging that an identification part is detected if an optical signal receiving unit SQ2 positioned below the processed steel belt receives the light, wherein the transmitting end of the optical signal transmitting unit SQ1 and the receiving end of the optical signal receiving unit SQ2 are both arranged towards the processed steel belt, and the connecting line between the transmitting end of the optical signal transmitting unit SQ1 and the receiving end of the optical signal receiving unit SQ2 is perpendicular to the surface of the processed steel belt;
Preferably, a plurality of light signal emitting units SQ1 are provided above the processed steel strip at intervals in the width direction of the processed steel strip.
In the application, the preset distance can be set to be equal to or slightly larger than the distance value from the surface of the flat steel strip to the detection head of the distance measuring sensor, and if the distance between the distance measuring sensor and the steel strip is measured to be larger than the preset distance threshold value, the existence of the groove or the through hole is indicated, namely the existence of the identification part.
The invention also provides an identification system for realizing the method, which comprises the following steps:
the perforating device is used for perforating the identification part on the processed steel belt;
and the detection device is used for detecting whether the processed steel belt has the identification part or not and sending out a first signal when the identification part is detected.
In the technical scheme, the tapping device comprises a press and a base for supporting a processed steel belt, wherein a pressure head of the press can reciprocate between a first height position and a second height position along a direction perpendicular to the height direction of the base, and the first height position is lower than the second height position;
a channel for the processed steel belt to pass through is formed above the upper surface of the base, a guide rod or a guide sleeve is fixedly arranged on the base, and a guide sleeve or a guide rod matched with the guide rod or the guide sleeve is fixedly arranged on the pressure head;
The pressure head is also fixedly provided with a first punch which is arranged along the height direction of the base and extends towards the base;
when the pressure head of the press moves to a first height position, the distance between the bottom end of the first punch and the upper surface of the base is smaller than the thickness of the processed steel belt.
In the application, when the press moves in the height direction, the guide rod and the guide sleeve are mutually matched, so that the positioning of the punching position of the first punch is ensured.
In the technical scheme, a second punch which is arranged along the height direction of the base and extends towards the base is also fixed on the pressure head, and a second through hole or a second groove matched with the outer diameter of the second punch is formed in the projection position of the second punch on the base;
When the pressure head of the press moves to a first height position, the height position of the bottom end of the second punch is not higher than the height position of the upper surface of the base;
defining a first area as a projection area of a second punch on the upper surface of the base, defining an ith second area as an area where an ith weld neck covered by welding materials is located, and defining an ith third area as an area with a distance h from a first side part in the width direction of the processed steel strip in the ith second area;
When the ith weld opening of the steel strip is positioned below the second punch, the first area is overlapped with the ith third area or the ith third area is positioned in the first area, and the projection area of the first punch is positioned in an area outside the coverage area of welding materials on the steel strip;
Preferably, the size of the intersection region of the first region and the ith second region in the steel strip width direction is defined as d1, h+1.2mm.ltoreq.d1.ltoreq.h+4.5 mm.
In the application, when the pressure head of the press moves to the first height position, the height position of the bottom end of the second punch is not higher than the height position of the upper surface of the base, and the projection part of the second punch on the processed steel belt can be completely removed by the second punch because the processed steel belt is supported above the upper surface of the base. Through setting up the second drift for when utilizing first drift to be close to the welded junction position on the steel band being processed and offer the sign portion, can utilize the second drift to offer logical groove, get rid of the material of the steel band part of being milled tooth processing position of needs, make like this and offer the sign portion, offer logical groove step can go on simultaneously, improve production efficiency. Through setting up h+1.2mm and be less than or equal to d1 and be less than or equal to h+4.5mm for the second drift can set up the recess on the processed steel band, thereby get rid of welding material, and can not influence the intensity of steel band because of the opening is too big, avoid appearing because of set up the recess and make the cracked problem of steel band probably in the course of working.
In the above technical scheme, the pressure head is further fixed with a second fixing plate and a third fixing plate which are parallel to the upper surface of the base, the third fixing plate is positioned above the second fixing plate, the channel is formed between the upper surface of the base and the second fixing plate, and the second fixing plate and the third fixing plate are connected with at least three elastic buffer parts which are uniformly arranged between the second fixing plate and the third fixing plate; the first punch is fixedly connected with the third fixing plate, and the distance between the lower end of the first punch and the base is smaller than that between the lower end of the second fixing part and the base;
Preferably, the first punch is fixedly connected with the third fixing plate and extends out from the lower side after penetrating through the second fixing plate, and the first punch is in clearance fit with the second fixing plate.
The applicant finds that the steel belt has rigidity, so that the impact force of the first punch head can lead the steel belt to be broken when the mark part is formed, and at least an elastic buffer part is arranged between the second fixing plate and the third fixing plate, so that the steel belt can play a role in buffering when rebounding, the steel belt is protected, and the steel belt is prevented from being broken. The first punch and the second fixing plate are in clearance fit, so that mutual interference between the first punch and the second fixing plate which move downwards can be prevented, and the second fixing plate which is possibly acted upwards by the action of the steel belt is prevented from influencing the movement of the punch which moves downwards.
In the above technical scheme, the projection position of the first punch on the base is provided with a first through hole or a first groove matched with the outer diameter of the first punch, the first through hole or the first groove is formed by a first cylindrical hole, a first size gradual change hole which is positioned below the first cylindrical hole and gradually increases from top to bottom in diameter, the diameter of the first cylindrical hole is matched with the outer diameter of the first punch, and the diameter of the top end of the first size gradual change hole is the same as the diameter of the first cylindrical hole.
In the application, the first through hole or the first groove is formed by the first cylindrical hole and the first size gradual change hole, the first cylindrical hole plays a role in positioning, and the first size gradual change hole can avoid friction with the wall surface of the first through hole or the first groove to form resistance when the punch falls.
In the technical scheme, the detection device comprises a ranging sensor positioned above or below the processed steel belt, and a detection head of the ranging sensor is arranged towards the processed steel belt; or (b)
The identification part is a through hole, and the detection device comprises:
The optical signal transmitting unit SQ1 is positioned above the processed steel belt;
an optical signal receiving unit SQ2 positioned below the processed steel strip;
A signal processing and signal generating unit for outputting a first signal when it is determined that the optical signal receiving unit SQ2 receives the optical signal;
The transmitting end of the optical signal transmitting unit SQ1 and the receiving end of the optical signal receiving unit SQ2 are both arranged towards the processed steel strip, and the connecting line between the transmitting end of the optical signal transmitting unit SQ1 and the receiving end of the optical signal receiving unit SQ2 is perpendicular to the surface of the processed steel strip.
The invention has the advantages and positive effects that: the method is simple to use, accurate in identification and suitable for various complex working conditions, including, for example, even a quenching furnace subjected to heat treatment, the identification cannot be influenced. Compared with the adhesive tape or other identification modes, the invention has the advantages of more convenience, more accurate identification, low use cost, strong operability and more convenience for subsequent intelligent detection control.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort to a person skilled in the art.
Fig. 1 is a schematic perspective view of an opening device of a press not shown in an embodiment of the present invention;
FIG. 2 is a schematic perspective view of the structure of FIG. 1, seen in another direction;
FIG. 3 is a front view of FIG. 1;
FIG. 4 is a top view of FIG. 1;
FIGS. 5 (a) and 5 (B) are schematic cross-sectional views of A-A and B-B of FIG. 4, respectively;
FIG. 6 is a schematic perspective view of the third fixing plate shown in FIG. 1 with the top plate removed;
FIG. 7 is a schematic top view of the first retaining plate of FIG. 1;
FIGS. 8 (a) and 8 (b) are schematic cross-sectional views of D-D, E-E of FIG. 7, respectively;
FIG. 9 is a schematic diagram of the structure of an optical signal transmitting unit, an optical signal receiving unit and a processed steel strip according to an embodiment of the present invention;
FIG. 10 is a schematic illustration of the relative positions of the mark, through groove and weld opening on a processed steel strip according to an embodiment of the present invention;
Fig. 11 (a), 11 (b), 11 (c) show schematic views of the positions of the first region, the second region, and the third region, respectively;
fig. 12 (a) and 12 (b) show a part and another part of the circuit configuration of the detection device according to the embodiment of the present invention.
In the above drawings, 1, bottom plate, 2, first fixing plate, 3, guide rod, 4, guide bush, 5, limit part, 6, top plate, 8, second fixing plate, 9, third fixing plate, 10, first punch, 101, first through hole, 101A, first cylindrical hole, 101B, first size gradual change hole, 11, elastic buffer part, 12, limit groove, 20, second punch, 201, second through hole, 201A, second cylindrical hole, 201B, second size gradual change hole, 30, mounting part, 100, processed steel strip, 100A, first side part, 100B, second side part, 1001, identification part, 1002, through groove, SQ1, optical signal transmitting unit, SQ2, optical signal receiving unit.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The invention provides a method for identifying steel strip welded junctions and/or defects used for producing saw blades, which is applied to saw blade production and comprises the following steps:
Step (A): before the tooth milling process of producing the saw blade, a marking part 1001 is arranged on the processed steel strip 100 near each welded junction position and/or near each processing defect position, and the marking part 1001 is a through hole or a groove;
Step (B): in the tooth separation and/or quenching and/or rolling and/or code spraying and/or plastic embedding process of the saw blade, if the identification part 1001 on the traveling processed steel strip 100 is detected, the processed steel strip 100 is stopped, and a first signal is sent, wherein the first signal is a production line stop operation signal and/or an alarm signal.
Defining a saw blade tooth height as h, defining a first side portion 100A as a side portion of the processed steel strip 100 for forming saw teeth of the saw blade, and defining a second side portion 100B as a side portion of the processed steel strip 100 opposite to the first side portion;
The step (a) further comprises: at the same time as the mark is provided at the position of the processed steel strip 100 near the weld junction, a through groove 1002 extending from the first side portion 100A to the second side portion 100B is provided at the weld junction position so that no welding material is provided in the range of the processed steel strip 100 having a distance from the first side portion 100A in the width direction of the processed steel strip 100 of not less than h. Preferably, the minimum dimension of the weld material is in the range of the processed steel strip 100 having a distance h+1.2mm from the first side portion 100A, and the maximum dimension of the weld material is in the range of the processed steel strip 100 having a distance h+4.5mm from the first side portion 100A.
The method also comprises
Step (C): when the first signal is received in the code spraying and/or plastic embedding process of the saw blade production, the processed steel strip 100 is cut at the weld junction position and the processing defect position of the processed steel strip 100.
The method for detecting the identification portion 1001 in the step (B) is as follows: measuring a distance d2 of the processed steel strip 100 by using a distance measuring sensor positioned above or below the processed steel strip 100, and judging that the identification part 1001 is detected if d2 is greater than a preset distance threshold; or (b)
The identification portion 1001 is a through hole, and the method for detecting the identification portion 1001 in the step (B) is as follows: the light signal transmitting unit SQ1 located above the processed steel strip 100 is used to transmit light to the processed steel strip 100, if the light signal receiving unit SQ2 located below the processed steel strip 100 receives light, it is determined that the identification portion 1001 is detected, the transmitting end of the light signal transmitting unit SQ1 and the receiving end of the light signal receiving unit SQ2 are both disposed towards the processed steel strip 100, and the connection line between the transmitting end of the light signal transmitting unit SQ1 and the receiving end of the light signal receiving unit SQ2 is perpendicular to the surface of the processed steel strip 100.
In a preferred embodiment, a plurality of optical signal emitting units SQ1 are disposed above the processed steel strip 100 at intervals along the width direction of the processed steel strip 100, a plurality of corresponding optical signal receiving units SQ2 are disposed below the processed steel strip 100 at intervals along the width direction of the processed steel strip 100, and the connection lines between the emitting ends of the optical signal emitting units SQ1 and the receiving ends of the optical signal receiving units SQ2 corresponding to each other are perpendicular to the surface of the processed steel strip 100.
As shown in fig. 1-4, 5 (a), 5 (b), 6-7, 8 (a), 8 (b) and 9, the present invention further provides an identification system for implementing the above method, which includes:
A hole opening device for opening a mark 1001 on the processed steel strip 100;
And a detecting device for detecting whether the identification portion 1001 is present on the processed steel strip 100, and sending a first signal when the identification portion 1001 is detected.
The tapping device comprises a base for supporting the steel strip 100 to be processed, a press machine capable of reciprocating between a first height position and a second height position along the direction perpendicular to the height of the base, wherein the first height position is lower than the second height position;
a channel for the processed steel belt 100 to pass through is formed above the upper surface of the base, a guide rod 3 or a guide sleeve 4 is fixedly arranged on the base, and a guide sleeve 4 or a guide rod 3 matched with the guide rod 3 or the guide sleeve 4 is fixedly arranged on the pressure head;
the pressure head is also fixedly provided with a first punch 10 which is arranged along the height direction of the base and extends towards the base;
When the press head moves to the first height position, the distance between the bottom end of the first punch 10 and the upper surface of the base is smaller than the thickness of the processed steel strip 100, and the first punch 10 may preferably extend into the first through hole 101 or the first groove.
In the application, the press can be an open type tilting press (T23-16) produced by Walder finishing machine.
A second punch 20 arranged along the height direction of the base and extending towards the base is also fixed on the pressure head, and a second through hole 201 or a second groove matched with the outer diameter of the second punch 20 is formed in the projection position of the second punch 20 on the base;
When the press head of the press is moved to the first height position, the height position of the bottom end of the second punch 20 is not higher than the height position of the upper surface of the base, so that the steel belt part of the projection position of the second punch 20 is removed. When the press head of the press is moved to the first height position, the second punch 20 may be inserted into the second through hole 201 or the second recess. When the bottom end of the second punch 20 is located at a lower height than the upper surface of the base, it means that the bottom end of the second punch 20 extends into the second through hole 201 or the second groove.
Defining a first region as a projection region of the second punch 20 on the upper surface of the base, defining an ith second region as a region where an ith weld neck covered with a welding material is located, and defining an ith third region as a region where a distance h between the ith second region and the first side portion in the width direction of the steel strip 100 to be processed is set;
when the ith weld opening of the strip is located below the second punch 20, the first region coincides with or is within the ith third region and the projected area of the first punch 10 is located in an area of the strip 100 outside the footprint of the weld material.
In a preferred embodiment, the size of the intersection region of the first region and the ith second region in the steel strip width direction is defined as d1, h+1.2mm.ltoreq.d1.ltoreq.h+4.5 mm.
The pressure head is also fixedly provided with a second fixing plate 8 and a third fixing plate 9 which are mutually parallel to the upper surface of the base, the third fixing plate 9 is positioned above the second fixing plate 8, the channel is formed between the upper surface of the base and the second fixing plate, and the second fixing plate 8 and the third fixing plate 9 are elastically connected with at least three elastic buffer parts 11 which are uniformly arranged between the second fixing plate and the third fixing plate through the arrangement. The first punch 10 and the second punch 20 are fixedly connected with the third fixing plate 9, and the distance between the lower end of the first punch 10 and the base is smaller than that between the lower end of the second fixing part 8 and the base.
In a preferred embodiment, the first punch 10 and the second punch 20 respectively penetrate through the second fixing plate 8 and then extend out from the lower part of the second fixing plate 8, and the first punch 10, the second punch 20 and the second fixing plate 8 are in clearance fit.
In the preferred embodiment, the mounting portion 30 may be fixed to the pressure head, and the mounting portion 30 is fixedly connected to both the top plate 6 and the third fixing plate 9. At least two guide bars 3 may be provided on the base (preferably on the bottom plate 1) at intervals in a direction parallel to the direction of passage (the direction of travel of the steel strip).
The projection position of the first punch 10 on the base is provided with a first through hole 101 or a first groove matched with the outer diameter of the first punch 10, the first through hole 101 or the first groove is formed by a first cylindrical hole 101A and a first size gradual change hole 101B which is positioned below the first cylindrical hole 101A and gradually increases from top to bottom in diameter, the diameter of the first cylindrical hole 101A is matched with the outer diameter of the first punch 10, and the diameter of the top end of the first size gradual change hole 101B is the same as the diameter of the first cylindrical hole 101A.
The identification portion 1001 is a through hole, and the detection device includes:
an optical signal emitting unit SQ1 located above the processed steel strip 100;
An optical signal receiving unit SQ2 located below the processed steel strip 100;
A signal processing and signal generating unit for outputting a first signal when it is determined that the optical signal receiving unit SQ2 receives the optical signal;
The transmitting end of the optical signal transmitting unit SQ1 and the receiving end of the optical signal receiving unit SQ2 are both arranged towards the processed steel strip 100, and the connecting line between the transmitting end of the optical signal transmitting unit SQ1 and the receiving end of the optical signal receiving unit SQ2 is perpendicular to the surface of the processed steel strip 100. The optical signal transmitting unit SQ1 and the optical signal receiving unit SQ2 may each employ a linear array laser sensor.
Preferably, the mark 1001 provided at each weld position and each machining defect position on the machined steel strip 100 is arranged along a first line, which is parallel to the passage direction. The transmitting end of the optical signal transmitting unit SQ1 and the receiving end of the optical signal receiving unit SQ2 are overlapped and positioned on the first straight line at the projection position of the processed steel strip 100. When the identification portion 1001 is detected, the detected distance d2 is significantly greater than the preset distance threshold regardless of whether the identification portion is a through hole or a groove. Therefore, by comparing the detected distance d2 with a preset distance threshold value, it can be determined whether or not the identification portion is present.
In a preferred embodiment, the upper surface of the base is parallel to the plane of the ground.
The distance between the second fixing plate 8 and the third fixing plate 9 increases or decreases as the elastic buffer 11 is elongated or shortened,
The upper surface of the base is also provided with a limit part 5 for positioning the processed steel belt 100. At least two limiting portions 5 may be provided at intervals in a direction parallel to the channel direction. During processing, the processed steel strip 100 can be attached to the limit part 5.
In a preferred embodiment, the base comprises a bottom plate 1 and a first fixing plate 2 fixed on the upper surface of the bottom plate 1, and the upper surface of the first fixing plate 2 is the upper surface of the base.
The invention relates to a method for identifying a process welded junction of a steel belt and identifying and recognizing a processing defect, which comprises the following steps:
1. Process weld mark and processing defect mark:
The first way is: when the steel strip processing process needs to generate a process weld, an open type tilting press (T23-16) produced by a Walder finishing machine can be adopted, and a set of reciprocating stamping dies (namely components except the press in a perforating device) are arranged on the press: firstly, a steel belt with a process welded junction is attached to the limiting part 5, and then a pressure head of a tiltable press is enabled to fall down, so that a small round hole of 5mm is punched on the steel belt by using a first punch.
The second way is: a small round hole of 5mm is punched by a pneumatic punching gun.
2. Identification and identification: when a round hole is formed in the steel belt, laser is received by the laser sensor SQ2 for receiving signals through the round hole, and the light curtain laser amplifier SQ3 immediately sends out signals to instantly alarm and stop the production line.
After the saw blade is processed (namely in the code spraying and/or plastic embedding process), a special scissors or an automatic cutting device can be adopted to cut off the weld neck and the processing defect position into a plurality of parts, so that the weld neck position and the processing defect position are removed.
In fig. 12 (a) and 12 (b), a contact denoted by Ka1 represents an auxiliary contact of the same relay, and a contact denoted by Ka2 represents an auxiliary contact of the same relay.
As shown in fig. 12 (a) and 12 (b), one embodiment of the detection device is configured to operate on the following principle:
pressing button switch SB2 starts the production line, and relay KA3 auto-lock actuation, relay auxiliary contact KA1 is the off state, and the laser signal that light signal transmitting unit SQ1 sent is not detected by light signal receiving unit SQ2, and optical fiber amplifier SQ3 keeps the passageway, and relay KA2 is closed, and converter terminal 9 and 6 terminal switch-on, tray motor rotate the production line operation.
The optical signal transmitting unit SQ1 and the optical signal receiving unit SQ2 can be rectangular optical fibers PIR1X256T-V K manufactured by BANNER company, and the optical fiber amplifier SQ3 can be an optical fiber amplifier DF-G1 manufactured by BANNER company.
When the optical signal receiving unit SQ2 detects the laser signal emitted from the optical signal emitting unit SQ1 when the through hole as the identification part 1001 passes, the optical fiber amplifier SQ3 is instantaneously operated, thereby cutting off the relay KA2, and the inverter terminals 6 and 9 are instantaneously disconnected, and the inverter is stopped, so that the production line is stopped.
The speed regulator is used for regulating the output frequency of the frequency converter to control the rotating speed of the motor and the beat of the production line. When the No. 5 terminal and the No. 9 terminal are connected, the frequency converter rotates positively, and when the No. 6 terminal and the No. 9 terminal are connected, the frequency converter rotates reversely;
When the light curtain laser line (namely the light signal transmitting unit SQ1, the light signal receiving unit SQ2 and the optical fiber amplifier SQ 3) fails or needs short-time switching and non-use, the selection switch SB6 is pressed, the stop button SB2 or the scram button SB3 is pressed, and the equipment stops running.
The detection device of fig. 12 (a) and 12 (b) is preferably applied to the molding process or the code spraying process.
In another embodiment of the detection device, a distance sensor may be disposed above or below the processed steel strip 100 to measure a distance d2 between the distance sensor and the processed steel strip 100. The detection head of the distance measuring sensor is arranged towards the processed steel strip 100. The direction of the detection head of the distance measuring sensor is perpendicular to the surface of the processed steel strip 100. Preferably, the mark 1001 provided at each weld position and each machining defect position on the steel strip 100 to be machined is arranged along a first line, which is parallel to the passage direction (i.e., the strip length direction). The projected position of the ranging sensor detection head on the processed steel strip 100 is located on a first straight line. The preset distance may be set to be equal to or slightly greater than the distance value from the flat steel strip surface to the ranging sensor. When the identification portion 1001 is detected, the detected distance d2 is significantly greater than the preset distance threshold regardless of whether the identification portion is a through hole or a groove. Therefore, by comparing the detected distance d2 with a preset distance threshold value, it can be determined whether or not the identification portion is present. The ranging sensor may be a laser ranging sensor.
It should be noted that, in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described as different from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.
The foregoing describes the embodiments of the present application in detail, but the description is only a preferred embodiment of the present application and should not be construed as limiting the scope of the application. All equivalent changes and modifications within the scope of the present application are intended to be covered by this patent. Modifications of the application which are equivalent to various embodiments of the application will occur to those skilled in the art upon reading the application, and are within the scope of the application as defined in the appended claims. Embodiments of the application and features of the embodiments may be combined with each other without conflict.
Claims (8)
1. An identification system, the identification system comprising:
A hole opening device for opening a marking part (1001) on the processed steel strip (100);
a detection device for detecting whether a mark (1001) is present on the processed steel strip (100), and emitting a first signal when the mark (1001) is detected;
The tapping device comprises a press and a base for supporting a processed steel strip (100), wherein a pressure head of the press can reciprocate between a first height position and a second height position along a direction perpendicular to the height direction of the base, and the first height position is lower than the second height position;
A channel for the processed steel belt (100) to pass through is formed above the upper surface of the base, a guide rod (3) or a guide sleeve (4) is fixedly arranged on the base, and a guide sleeve (4) or a guide rod (3) matched with the guide rod (3) or the guide sleeve (4) is fixedly arranged on the pressure head;
The pressure head is also fixedly provided with a first punch (10) which is arranged along the height direction of the base and extends towards the base;
When the pressure head of the press moves to a first height position, the distance between the bottom end of the first punch (10) and the upper surface of the base is smaller than the thickness of the processed steel belt (100);
The pressure head is also fixedly provided with a second fixing plate (8) and a third fixing plate (9) which are parallel to the upper surface of the base, the third fixing plate (9) is positioned above the second fixing plate (8), the channel is formed between the upper surface of the base and the second fixing plate (8), and the second fixing plate (8) and the third fixing plate (9) are connected through at least three elastic buffer parts (11) which are uniformly arranged between the second fixing plate and the third fixing plate; the elastic buffer part (11) is used for playing a buffering role when the steel belt rebounds; the distance between the lower end of the first punch (10) and the base is smaller than the distance between the lower end of the second fixing plate (8) and the base;
the first punch (10) is fixedly connected with the third fixed plate (9) and extends out from the lower part after penetrating through the second fixed plate (8), and the first punch (10) is in clearance fit with the second fixed plate (8);
The identification system implements a method of identifying steel strip craters and/or defects for producing saw blades, the method comprising the steps of:
Step (A): before a gear milling process of producing the saw blade, a marking part (1001) is arranged on a processed steel belt (100) at a position close to each welded junction and/or a position close to each processing defect, and the marking part (1001) is a through hole or a groove;
Step (B): in the tooth separation and/or quenching and/or rolling and/or code spraying and/or plastic embedding process of the saw blade, if the identification part (1001) on the processed steel strip (100) is detected, stopping the processed steel strip (100) and sending a first signal, wherein the first signal is a production line stop operation signal and/or an alarm signal;
A second punch head (20) which is arranged along the height direction of the base and extends towards the base is also fixed on the pressure head, and a second through hole (201) or a second groove matched with the outer diameter of the second punch head (20) is formed in the projection position of the second punch head (20) on the base;
when the pressure head of the press moves to a first height position, the height position of the bottom end of the second punch (20) is not higher than the height position of the upper surface of the base;
Defining a first area as a projection area of a second punch (20) on the upper surface of the base, defining an ith second area as an area where an ith weld neck covered by welding material is located, and defining an ith third area as an area with a distance h from a first side part (100A) in the width direction of the processed steel strip (100) in the ith second area;
when the ith weld opening of the steel strip is positioned below the second punch (20), the first region coincides with or is within the ith third region, and the projected area of the first punch (10) is positioned in an area of the steel strip (100) outside the footprint of the weld material.
2. The identification system of claim 1, wherein a saw blade tooth height h is defined, a first side (100A) is defined as the side of the strip (100) being processed for forming saw teeth of the saw blade, and a second side (100B) is defined as the side of the strip (100) being processed opposite the first side;
The step (a) further comprises: a mark is formed on the processed steel strip (100) near a weld junction position, and a through groove (1002) extending from a first side part (100A) to a second side part (100B) is formed at the weld junction position, so that no welding material exists in the range of the processed steel strip (100) with a distance from the first side part not smaller than h in the width direction of the processed steel strip (100).
3. The identification system of claim 1, further comprising
Step (C): when the first signal is received in the code spraying and/or plastic embedding process of the saw blade production, the steel strip (100) to be processed is cut off at the weld junction position and the processing defect position of the steel strip (100) to be processed.
4. The identification system of claim 1 wherein,
The method for detecting the identification part (1001) in the step (B) is as follows: the identification part (1001) is a groove, a distance d2 of the processed steel strip (100) is measured by a distance measuring sensor positioned above the processed steel strip (100), and if d2 is larger than a preset distance threshold value, the identification part (1001) is judged to be detected; or (b)
The identification part (1001) is a through hole, and the method for detecting the identification part (1001) in the step (B) is as follows: and transmitting light to the processed steel belt (100) by utilizing an optical signal transmitting unit SQ1 positioned above the processed steel belt (100), judging that the identification part (1001) is detected if an optical signal receiving unit SQ2 positioned below the processed steel belt (100) receives the light, wherein the transmitting end of the optical signal transmitting unit SQ1 and the receiving end of the optical signal receiving unit SQ2 are both arranged towards the processed steel belt (100), and the connecting line between the transmitting end of the optical signal transmitting unit SQ1 and the receiving end of the optical signal receiving unit SQ2 is perpendicular to the surface of the processed steel belt (100).
5. The recognition system according to claim 4, wherein a plurality of light signal emitting units SQ1 are provided above the processed steel strip (100) at intervals in the width direction of the processed steel strip (100).
6. The identification system according to claim 1, wherein a projection position of the first punch (10) on the base is provided with a first through hole (101) or a first groove matched with the outer diameter of the first punch (10), the first through hole (101) or the first groove is formed by a first cylindrical hole (101A), a first size gradual change hole (101B) which is positioned below the first cylindrical hole (101A) and gradually increases from top to bottom, the diameter of the first cylindrical hole (101A) is matched with the outer diameter of the first punch (10), and the top diameter of the first size gradual change hole (101B) is the same as the diameter of the first cylindrical hole (101A).
7. The identification system of claim 1, wherein a dimension in the steel strip width direction defining an intersection of the first region and the i-th second region is d1, h+1.2mm.ltoreq.d1.ltoreq.h+4.5 mm.
8. The identification system of claim 1 wherein,
The identification part (1001) is a groove, the detection device comprises a ranging sensor positioned above the processed steel belt (100), and the detection head of the ranging sensor is arranged towards the processed steel belt (100); or (b)
The identification portion (1001) is a through hole, and the detection device includes:
an optical signal transmitting unit SQ1 positioned above the processed steel strip (100);
an optical signal receiving unit SQ2 positioned below the processed steel strip (100);
A signal processing and signal generating unit for outputting a first signal when it is determined that the optical signal receiving unit SQ2 receives the optical signal;
the transmitting end of the optical signal transmitting unit SQ1 and the receiving end of the optical signal receiving unit SQ2 are both arranged towards the processed steel strip (100), and the connecting line between the transmitting end of the optical signal transmitting unit SQ1 and the receiving end of the optical signal receiving unit SQ2 is perpendicular to the surface of the processed steel strip (100).
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| CN202110422179.XA CN113134522B (en) | 2021-04-20 | 2021-04-20 | Method and system for identifying steel strip weld and/or defects for producing saw blades |
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