CN119000539A - Plastic film crack detection device and detection method thereof - Google Patents
Plastic film crack detection device and detection method thereof Download PDFInfo
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- CN119000539A CN119000539A CN202411213366.7A CN202411213366A CN119000539A CN 119000539 A CN119000539 A CN 119000539A CN 202411213366 A CN202411213366 A CN 202411213366A CN 119000539 A CN119000539 A CN 119000539A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
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Abstract
The invention relates to the technical field of crack detection, and discloses a plastic film crack detection device and a detection method thereof, wherein the device comprises a support plate, a detection assembly, a flattening mechanism and a light supplementing mechanism, and the device comprises the following components: the detection assembly is arranged above the light supplementing mechanism to detect cracks on the surface of the plastic film; the flattening mechanism comprises a positioning seat, an adjusting rod, a compression spring and a push roller, wherein the bottom of the positioning seat is connected with the top of the supporting plate through bolts. According to the plastic film crack detection device and the plastic film crack detection method, through the matching arrangement of the positioning seat and the adjusting rod, the sliding of the adjusting rod can be used for driving the push roller to adjust different heights, so that the passing plastic film is supported and stretched again in a small range, the hidden cracks and the too thin position are stretched, the overall detection effect is improved, and the compression spring can be subjected to self-adaptive adjustment of different degrees according to the difference of plastic film stretching force, so that the plastic film stretching effect is guaranteed.
Description
Technical Field
The invention relates to the technical field of crack detection, in particular to a plastic film crack detection device and a detection method thereof.
Background
Biaxially oriented plastic film is an advanced plastic film production process, and plastic films obtained by biaxially oriented plastic film have smaller thickness and better performance, and particularly, with the development of economy, more and more fields need optical grade plastic films or ultrathin plastic films with high strength and high insulation performance, and the plastic films can be generally prepared only by the biaxially oriented plastic film production process.
The plastic film is produced by adopting a biaxial stretching process, a thicker plastic film is usually preheated, then stretched in the longitudinal direction and the transverse direction, and then shaped to obtain the plastic film with smaller thickness, wherein the plastic film is longitudinally stretched by utilizing a roller with a certain speed ratio during longitudinal stretching, and the two side edges of the plastic film are clamped by utilizing clamps during transverse stretching, and the clamps are made to move along a track so as to transversely stretch the plastic film.
The utility model provides a plastic film stretch production time is easy to appear the crack because of stretching excessively, however, have some cracks often to be thinner, it is inconvenient to discern by the people's eye alone, and then need detect the plastic film with the help of crack detection device, and then judge in time to the crack, so as to guarantee the production quality of plastic film, and current plastic film detection device only detects the surface of plastic film through detecting instrument in the plastic film rolling process, but appear thinner position and the fracture of comparatively hidden can't show when stretching, make detecting instrument unable accurate detection crack exist, influence detecting instrument detection's accuracy, thereby can cause the influence to the production quality of plastic film because the deviation of detection effect leads to unable accurate biaxial stretching force that uses when producing plastic film.
Disclosure of Invention
The invention provides a plastic film crack detection device and a detection method thereof, which can be used for carrying out small-amplitude extension on a plastic film, further expanding hidden cracks and over-thin positions, improving the detection accuracy and avoiding influencing the production quality of the plastic film due to the detection effect.
In order to achieve the above purpose, the invention is realized by the following technical scheme:
The utility model provides a plastic film crack detection device, includes backup pad, detection component, flattening mechanism and light filling mechanism, wherein:
the detection assembly is arranged above the light supplementing mechanism to detect cracks on the surface of the plastic film;
The flattening mechanism comprises a positioning seat, an adjusting rod, a compression spring and a push roller, wherein the bottom of the positioning seat is connected with the top of the supporting plate through a bolt, the adjusting rod is slidably connected to the inner wall of the positioning seat, one end of the compression spring is fixedly connected with the inner bottom wall of the positioning seat, the other end of the compression spring is fixedly connected with the end part of the adjusting rod, and the push roller is rotatably connected to the outer wall of the adjusting rod and is used for flattening a plastic film;
The light supplementing mechanism comprises a bracket, a light bar and an air duct, wherein the bracket is arranged on one side of the flattening mechanism, the light bar is fixedly arranged in the middle of the top of the bracket so as to illuminate the lower part of the plastic film for supplementing light, the air duct is arranged on two sides of the light bar on the outer surface of the bracket and is used for guiding the air direction so as to assist the plastic film to flatten and reduce damage caused by contact.
Optionally, both sides of backup pad surface are all offered in the guide way, the inner wall sliding connection of guide way has adjustment mechanism.
Optionally, adjustment mechanism includes adjustment seat, bracing piece, installation pole and fixation clamp, but the surface of adjustment seat and the inner wall sliding connection of guide way, the one end of bracing piece is rotatable with the top of adjustment seat is connected, the other end of bracing piece is rotatable with the one end of installation pole is connected, the inner wall of fixation clamp passes through bolted connection with the top of installation pole, the surface of fixation clamp and the outer wall fixed mounting of detection component.
Optionally, the adjustment mechanism still includes depression bar and fastening bolt, the outer wall of adjusting the seat is worn to locate by the depression bar screw thread, the one end that the depression bar worn out the adjustment seat supports the inner wall of tight guide way, two fastening bolt wears to locate the outer wall of adjustment seat and bracing piece by the screw thread respectively.
Optionally, the opposite side that backup pad top was located flattening mechanism can be dismantled and be connected with actuating mechanism, actuating mechanism includes fixing base, drive roller and auxiliary roller, two the bottom of fixing base all passes through bolted connection with the top of backup pad, drive roller rotatable coupling is between two fixing bases, auxiliary roller rotatable coupling just is located the below of drive roller between two fixing bases.
Optionally, the driving mechanism further comprises a motor, the motor is fixedly installed on the outer wall of one of the fixing seats, and the output end of the motor is connected with the end part of the driving roller through a key.
Optionally, the below that backup pad top was located light supplementing mechanism can be dismantled and is connected with positioning mechanism, positioning mechanism includes locating plate, first guide cylinder, locating lever and second guide cylinder, the bottom of locating plate and the top threaded connection of backup pad, two first guide cylinder respectively fixed mounting in the both sides at locating plate top, two locating lever respectively threaded connection in the inner wall of first guide cylinder, two second guide cylinder respectively with two the surface threaded connection of locating lever.
Optionally, the light supplementing mechanism includes apron, leading wheel and filter screen, the both sides of bracket bottom respectively with two the top fixed connection of second guide cylinder, a plurality of apron slidable connection is in the outer wall of bracket, a plurality of the equal rotatable coupling of leading wheel is in the outer wall of apron, filter screen fixed mounting is in the inside wall in wind channel.
Optionally, the detection component comprises a camera, and the camera is fixedly installed on the outer surface of the fixing clamp.
The plastic film crack detection method adopts the plastic film crack detection device, and comprises the following steps:
s1, installing a driving mechanism, a flattening mechanism and a positioning mechanism at a preset position, rotating a positioning rod, and adjusting the height of a light supplementing mechanism;
S2, passing the plastic film between the driving roller and the auxiliary roller, passing the plastic film from the top of the push roller, passing the plastic film between the other driving roller and the auxiliary roller after passing the plastic film from the upper part of the other push roller, starting the motor to convey the plastic film, pushing the push roller by means of the elasticity of the compression spring, and pushing and extending the plastic film by the push roller;
S3, the width of the plastic film is used for adjusting the position of the cover plate so as to cover redundant lamplight, the air duct is connected with external air supply equipment, and then air is blown out to the two sides of the bracket through the air duct at an inclined angle, so that the plastic film is further flattened, meanwhile, the plastic film is blown, shake occurs at a crack, and the detection assembly is convenient to detect.
The invention provides a plastic film crack detection device and a detection method thereof, which have the following beneficial effects:
According to the plastic film crack detection device and the plastic film crack detection method, through the matching arrangement of the positioning seat and the adjusting rod, the push roller can be driven to adjust different heights by means of the sliding of the adjusting rod, then the passing plastic film is supported and stretched again in a small range, further the hidden crack and the too thin position are stretched, the whole detection effect is improved, the compression spring can be adaptively adjusted according to different stretching forces of the plastic film, further the extension effect of the plastic film is guaranteed, the air fed in can be sprayed out from the air duct to two sides of the lamp strip by means of the arrangement of the air duct, the plastic film above is blown to two sides, further the plastic film is assisted to be flattened, in addition, when cracks appear, the plastic film can shake under the blowing of the air, further the detection assembly is more convenient to detect, and the blown air of the air duct can cool down the lamp strip, so that the service life of the lamp strip is prolonged.
Drawings
FIG. 1 is a schematic view of the overall mounting structure of the present invention;
FIG. 2 is a schematic view of the mounting structure of the flattening mechanism of the present invention;
FIG. 3 is a schematic diagram of an exploded construction of the adjustment mechanism of the present invention;
FIG. 4 is a schematic diagram of a driving mechanism according to the present invention;
FIG. 5 is a schematic view of an exploded view of the flattening mechanism of the present invention;
FIG. 6 is a schematic diagram of an explosion structure of the light supplementing mechanism according to the present invention;
fig. 7 is a schematic cross-sectional structure of the light supplementing mechanism in the present invention.
In the figure: 1. a support plate; 2. a guide groove; 3. an adjusting mechanism; 301. an adjusting seat; 302. a support rod; 303. a mounting rod; 304. a fixing clamp; 305. a compression bar; 306. a fastening bolt; 4. a detection assembly; 5. a driving mechanism; 501. a fixing seat; 502. a driving roller; 503. an auxiliary roller; 504. a motor; 6. a flattening mechanism; 601. a positioning seat; 602. an adjusting rod; 603. a compression spring; 604. a push roller; 7. a positioning mechanism; 701. a positioning plate; 702. a first guide cylinder; 703. a positioning rod; 704. a second guide cylinder; 8. a light supplementing mechanism; 801. a bracket; 802. a light bar; 803. a cover plate; 804. a guide wheel; 805. an air duct; 806. and (5) a filter screen.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present invention are within the scope of protection of the present invention.
Referring to fig. 1 to 7, an embodiment of the present invention provides a crack detection device, which is applied to a scene of detecting a crack during plastic film production, and in this embodiment, the structure of the crack detection device is improved to make the crack detection device have an advantage of performing secondary expansion on a plastic film. Specifically, taking plastic film production as an example, as a preferred embodiment of the present embodiment, the crack detection device is specifically a plastic film crack detection device, and can perform secondary expansion on the plastic film so as to detect cracks.
Referring to fig. 1 to 7, the present invention provides a technical solution: a crack detection device for a plastic film is applied to a scene of detecting cracks during plastic film production.
The plastic film crack detection device comprises a support plate 1, a detection assembly 4, a flattening mechanism 6 and a light supplementing mechanism 8, wherein:
The detection component 4 is arranged above the light supplementing mechanism 8 to detect cracks on the surface of the plastic film;
The flattening mechanism 6 comprises a positioning seat 601, an adjusting rod 602, a compression spring 603 and a push roller 604, wherein the bottom of the positioning seat 601 is connected with the top of the supporting plate 1 through bolts, the adjusting rod 602 is slidably connected to the inner wall of the positioning seat 601, one end of the compression spring 603 is fixedly connected with the inner bottom wall (namely the bottom of the inner wall) of the positioning seat 601, the other end of the compression spring 603 is fixedly connected with the end of the adjusting rod 602, and the push roller 604 is rotatably connected to the outer wall of the adjusting rod 602 and is used for flattening a plastic film;
The light supplementing mechanism 8 comprises a bracket 801, a light bar 802 and an air duct 805, wherein the bracket 801 is arranged on one side of the flattening mechanism 6, the light bar 802 is fixedly arranged in the middle of the top of the bracket 801 so as to illuminate and supplement light below the plastic film, and the air duct 805 is arranged on two sides of the light bar 802 on the outer surface of the bracket 801 and is used for guiding the air direction so as to assist flattening of the plastic film and reduce damage caused by contact.
In this embodiment, the crack can be detected above the plastic film through the arrangement of the detecting component 4, the height of the push roller 604 can be adjusted to different degrees by means of the relative floating between the positioning seat 601 and the adjusting rod 602 through the arrangement of the flattening mechanism 6, and then the plastic film is stretched again, so that the hidden crack and the too thin position are stretched, the whole detecting effect is improved, the adjusting rod 602 can be pushed through the arrangement of the compression spring 603, so that the self-adapting adjustment can be performed according to the difference of the stretching force of the plastic film, the elasticity coefficient of the compression spring 603 is enough to achieve the effect, the plastic film is not torn, the lower side of the plastic film can be illuminated by means of the lamp strip 802 through the arrangement of the light supplementing mechanism 8, and further the detecting component 4 is provided with better detecting conditions, and the influence of the shadow part on the detecting effect is avoided;
The inner wall of the air duct 805 is communicated with an external air supply mechanism, such as an air pump, so that the air is sprayed out from the air duct 805 to two sides of the light bar 802, and the plastic film above is blown to two sides of the light bar 802, so as to assist the plastic film to flatten, so that a certain gap is reserved between the plastic film and the bracket 801 as well as between the plastic film and the light bar 802, the plastic film cannot contact with the bracket 801 and the light bar 802, and abrasion caused by friction between the plastic film above the bracket 801 and the light bar 802 is avoided;
Under the action of the air flow blown out by the air duct 805, hard connection between the bracket 801 and the lamp strip 802 and the plastic film is reduced, meanwhile, the plastic film can be further flattened through the blown air flow, wrinkles formed along the feeding direction due to contact of the roller and the straight plate with the plastic film can be reduced, soft connection is provided, the plastic film is protected, the flattening effect of the plastic film can be improved, and the influence of wrinkles on the surface of the plastic film due to tensioning on the detection accuracy is avoided;
Due to the arrangement of the air flow blown out of the air duct 805, when cracks appear, the plastic film can shake under the air flow blowing, so that the detection assembly 4 is more convenient to capture and detect, the detection accuracy is effectively improved, the air blown out of the air duct can cool and dissipate heat of the light bar 802, the service life of the light bar 802 is prolonged, the light bar 802 is prevented from being gradually heated along with the extension of the service time, and the plastic film is prevented from being damaged due to the influence of the temperature rise of the light bar 802, so that the stability of the plastic film is more easily broken or wrinkled;
because the whole plastic film is in a flattened and tensioned state, the air flow blown out of the air duct 805 can vibrate the plastic film slightly, and the detection is not affected by large shaking, when the plastic film is blown to the plastic film with cracks, the air flow can pass through the cracks of the plastic film, and the air flow shakes due to the passing of the air flow, so that the air flow is more easily captured by the detection component 4;
The two air outlet ends of the air duct 805 are respectively arranged on the bracket 801 in an inclined manner at a certain angle, so that the air flow flowing out from the two air outlet ends of the air duct 805 is blown on the plastic film at a certain inclined angle, and the inclined angle can be set at an included angle of thirty degrees between the bracket 801 and the plastic film or an included angle of sixty degrees between the bracket 801 and the horizontal plane, so that the air flow is blown in two opposite directions at a certain angle, the plastic film is assisted to be flattened, and an air film is formed at the same time, so that the plastic film is prevented from being directly contacted with the bracket 801 or the light bar 802.
In the above embodiment, as a preferable scheme, both sides of the outer surface of the support plate 1 are both provided with the guide groove 2, the inner wall of the guide groove 2 is slidably connected with the adjusting mechanism 3, and by the arrangement of the guide groove 2, the sliding of the adjusting mechanism 3 can be assisted and guided, so as to adjust the position of the adjusting mechanism 3.
In the above embodiment, as a preferred solution, the adjusting mechanism 3 includes the adjusting seat 301, the supporting rod 302, the mounting rod 303 and the fixing clip 304, the outer surface of the adjusting seat 301 is slidably connected with the inner wall of the guide groove 2, one end of the supporting rod 302 is rotatably connected with the top of the adjusting seat 301, the other end of the supporting rod 302 is rotatably connected with one end of the mounting rod 303, the inner wall of the fixing clip 304 is fixedly mounted with the outer wall of the detecting assembly 4 through the bolt connection with the top of the mounting rod 303, the outer surface of the fixing clip 304 is fixedly mounted with the outer wall of the detecting assembly 4, by the arrangement of the adjusting seat 301, the sliding adjustment can be performed in the guide groove 2, the supporting rod 302 is conveniently driven to adjust the position of the detecting assembly 4, and the fixing clip 304 is mutually matched with the mounting rod 303, so that the position of the detecting assembly 4 can be further adjusted according to different requirements, and the detecting assembly 4 is fixed by the fixing clip 304;
The detection assembly 4 comprises a camera, the camera is fixedly arranged on the outer surface of the fixing clamp 304, the detection assembly 4 comprises a camera and an image processing module, the camera shoots a plastic film positioned below the camera, an image is transmitted to the image processing module, and the image captured by the camera is analyzed through the image processing module, so that whether the plastic film has cracks or not is judged;
the detecting assembly 4 can also be a machine vision detecting system, and the crack on the film can be rapidly and accurately detected and identified by using a camera and image processing software, and the fixing clamp 304 can be detached, so that the detecting assembly 4 can be detached conveniently for overhauling and maintaining.
In the above embodiment, as a preferred scheme, the adjusting mechanism 3 further includes a pressing rod 305 and fastening bolts 306, the pressing rod 305 is threaded through the outer wall of the adjusting seat 301, one end of the pressing rod 305 penetrating out of the adjusting seat 301 abuts against the inner wall of the guide slot 2, the two fastening bolts 306 are threaded through the outer walls of the adjusting seat 301 and the supporting rod 302 respectively, the adjusted adjusting seat 301 can be fixed through the arrangement of the pressing rod 305, so that the stability of the detecting assembly 4 during detection is ensured, and the arrangement of the fastening bolts 306 can fix the adjusted supporting rod 302 and the mounting rod 303.
In the above embodiment, as a preferred scheme, the top of the supporting plate 1 is located at the other side of the flattening mechanism 6 and is detachably connected with the driving mechanism 5, the driving mechanism 5 comprises the fixing seats 501, the driving roller 502 and the auxiliary roller 503, the bottoms of the two fixing seats 501 are all connected with the top of the supporting plate 1 through bolts, the driving roller 502 is rotatably connected between the two fixing seats 501, the auxiliary roller 503 is rotatably connected between the two fixing seats 501 and is located below the driving roller 502, the driving roller 502 and the auxiliary roller 503 can be fixed by means of the fixing seats 501 through the arrangement of the driving mechanism 5, and the plastic film is driven by means of the driving roller 502 and the auxiliary roller 503 to uniformly pass through the detection assembly 4 so as to ensure the detection accuracy.
In the above embodiment, as a preferred scheme, the driving mechanism 5 further includes a motor 504, the motor 504 is fixedly mounted on the outer wall of one of the fixing seats 501, the output end of the motor 504 is connected with the end of the driving roller 502 through a key, and the driving roller 502 can be driven by the setting of the motor 504, and then the driving roller 502 and the auxiliary roller 503 drive the plastic film;
as can be seen from fig. 1, the two driving rollers 502 are driven by two motors 504 respectively, and the rotation speeds of the two motors 504 are the same, so that the two driving rollers 502 rotate synchronously, and the plastic film is prevented from breaking and losing when reaching the tension limit due to the rotation speed difference;
The two drive rollers 502 rotate in the same direction, rather than rotating in opposite directions relative to each other.
In the above embodiment, as a preferred scheme, the top of the support plate 1 is located below the light compensating mechanism 8 and may be detachably connected with the positioning mechanism 7, the positioning mechanism 7 includes a positioning plate 701, a first guide cylinder 702, positioning rods 703 and a second guide cylinder 704, the bottom of the positioning plate 701 is in threaded connection with the top of the support plate 1, two first guide cylinders 702 are respectively fixedly installed on two sides of the top of the positioning plate 701, two positioning rods 703 are respectively in threaded connection with the inner wall of the first guide cylinder 702, two second guide cylinders 704 are respectively in threaded connection with the outer surfaces of the two positioning rods 703, by rotating the positioning rods 703, the positions between the first guide cylinders 702 and the second guide cylinders 704 can be relatively adjusted, and then the position of the light compensating mechanism 8 is adjusted, so that the light compensating mechanism 8 is close to a plastic film, thereby achieving a better lighting effect, and the setting of the positioning plate 701 can be fixed on the top of the support plate 1, and the stability of the light compensating mechanism 8 is ensured.
In the above embodiment, as a preferred scheme, the light supplementing mechanism 8 includes the cover plate 803, the guide wheels 804 and the filter screen 806, two sides of the bottom of the bracket 801 are fixedly connected with the tops of the two second guide cylinders 704 respectively, the plurality of cover plates 803 are slidably connected to the outer wall of the bracket 801, the plurality of guide wheels 804 are rotatably connected to the outer wall of the cover plate 803, the filter screen 806 is fixedly mounted on the inner side wall of the air duct 805, the light bar 802 can be fixed through the arrangement of the bracket 801, the bottom of the plastic film is further illuminated, the brightness of the light bar 802 can be adjusted according to the voltage, the light bar 802 with proper brightness can also be preset, the light bar 802 is a known technology, but the light bar 802 is applied to the bracket 801, the irradiation of the plastic film below the detection assembly 4 can avoid the error of detection caused by the shadow generated by insufficient light, the light supplemented by the light bar 802 can be found in time, and the influence on the detection of the crack can be reduced;
The cover plate 803 can adjust the shielding range according to different widths of the plastic film, so that redundant light is prevented from leaking from two sides of the plastic film, the influence on the detection effect of the detection assembly 4 is reduced, the situation that the edge portions of two ends of the leaked light plastic film are ambiguous in detection of the detection assembly 4 is avoided, the detection is inconvenient, the cover plate 803 shields the light, meanwhile, the air duct 805 can also cover the air duct 805, the shake of the edge portions of two ends of the plastic film caused by the blowing of the air duct 805 to the edge portions of two ends of the plastic film is avoided, the influence on the detection accuracy of the detection assembly 4 caused by the blowing of air flow on the edge portions of two ends of the plastic film is avoided, and the detection error or misjudgment is reduced;
For example, when the width of the plastic film is 10cm, the number and the positions of the cover plates 803 are adjusted to enable the cover plates 803 to shield the air channels 805 and the light bars 802 below the two sides of the plastic film, only the lower positions of the two side edges of the plastic film are shielded, blowing to the edges of the plastic film is avoided, when the width of the plastic film is 8cm, one cover plate 803 below the two sides of the plastic film is increased, and therefore the cover plates 803 are matched with the plastic film with a narrower width to shield the air channels 805 and the light bars 802 when the plastic film is detected;
Meanwhile, through the arrangement of the cover plate 803, the structure is compact, the detection accuracy is effectively improved, the use quantity can be adjusted according to the width of the plastic film, the application range is effectively improved, the cover plate 803 is reasonably used, errors and repeated detection in the detection process can be effectively reduced, the overall detection cost is reduced, and the flexibility, shielding effect and optimal design of the cover plate 803 effectively improve the performance and detection accuracy of the detection assembly.
Through the setting of leading wheel 804, can reduce the jam that apron 803 caused plastic film, through the setting of filter screen 806, can protect the outside of wind channel 805, reduce entering wind channel 805 such as piece.
The invention also provides a plastic film crack detection method, which adopts the plastic film crack detection device, and comprises the following steps:
s1, installing a driving mechanism, a flattening mechanism and a positioning mechanism at a preset position, rotating a positioning rod, and adjusting the height of a light supplementing mechanism;
S2, passing the plastic film between the driving roller and the auxiliary roller, passing the plastic film from the top of the push roller, passing the plastic film between the other driving roller and the auxiliary roller after passing the plastic film from the upper part of the other push roller, starting the motor to convey the plastic film, pushing the push roller by means of the elasticity of the compression spring, and pushing and extending the plastic film by the push roller;
S3, the width of the plastic film is used for adjusting the position of the cover plate so as to cover redundant lamplight, the air duct is connected with external air supply equipment, and then air is blown out to the two sides of the bracket through the air duct at an inclined angle, so that the plastic film is further flattened, meanwhile, the plastic film is blown, shake occurs at a crack, and the detection assembly is convenient to detect.
In the invention, the working steps of the device are as follows:
1. Firstly, the driving mechanism 5, the flattening mechanism 6 and the positioning mechanism 7 are arranged at proper positions according to different use requirements, and then the positioning rod 703 is rotated, so that the height of the light supplementing mechanism 8 can be adjusted to different degrees;
2. Secondly, the plastic film passes through the space between the driving roller 502 and the auxiliary roller 503, passes through the top of the pushing roller 604, passes through the space between the other driving roller 502 and the auxiliary roller 503 after passing through the upper part of the other pushing roller 604, and can be stretched by starting the motor 504, the pushing roller 604 is pushed by the elasticity of the compression spring 603, and the plastic film is pushed and stretched by the pushing roller 604;
3. Then, the position of the cover plate 803 is adjusted according to the width of the plastic film so as to cover redundant lamplight, the air duct 805 is connected with external air supply equipment, and then air is blown out to two sides of the bracket 801 by means of the air duct 805, so that the plastic film is further flattened, meanwhile, the plastic film is blown, so that the crack is dithered, and the detection assembly 4 is convenient to detect;
4. finally, the detecting assembly 4 can be started to detect the passing plastic film.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A plastic film crack detection device, its characterized in that: including backup pad (1), detection component (4), exhibition paper-back edition constructs (6) and light supplementing mechanism (8), wherein:
the flattening mechanism (6) comprises a positioning seat (601), an adjusting rod (602), a compression spring (603) and a push roller (604), wherein the bottom of the positioning seat (601) is connected with the top of the supporting plate (1) through a bolt, the adjusting rod (602) is slidably connected to the inner wall of the positioning seat (601), one end of the compression spring (603) is fixedly connected with the inner bottom wall of the positioning seat (601), the other end of the compression spring (603) is fixedly connected with the end part of the adjusting rod (602), and the push roller (604) is rotatably connected to the outer wall of the adjusting rod (602) and is used for flattening plastic films;
The light supplementing mechanism (8) comprises a bracket (801), a light bar (802) and an air duct (805), the bracket (801) is arranged on one side of the flattening mechanism (6), the light bar (802) is fixedly arranged in the middle of the top of the bracket (801) so as to illuminate and supplement light for the lower part of the plastic film, the air duct (805) is arranged in the bracket (801), and the air outlet ends are positioned on two sides of the light bar (802) and used for guiding air flow to assist flattening of the plastic film;
The detection end of the detection component (4) is positioned above the light supplementing mechanism (8) so as to detect cracks on the surface of the plastic film.
2. The plastic film crack detection device according to claim 1, wherein: both sides of the outer surface of the supporting plate (1) are respectively provided with a guide groove (2), and the inner wall of the guide groove (2) is slidably connected with an adjusting mechanism (3).
3. The plastic film crack detection device according to claim 2, wherein: the adjusting mechanism (3) comprises an adjusting seat (301), a supporting rod (302), a mounting rod (303) and a fixing clamp (304), wherein the outer surface of the adjusting seat (301) is slidably connected with the inner wall of the guide groove (2), one end of the supporting rod (302) is rotatably connected with the top of the adjusting seat (301), the other end of the supporting rod (302) is rotatably connected with one end of the mounting rod (303), the inner wall of the fixing clamp (304) is connected with the top of the mounting rod (303) through a bolt, and the outer surface of the fixing clamp (304) is fixedly mounted with the outer wall of the detection assembly (4).
4. A plastic film crack detection device as set forth in claim 3, characterized in that: the adjusting mechanism (3) further comprises a pressing rod (305) and fastening bolts (306), the pressing rod (305) is threaded through the outer wall of the adjusting seat (301), one end of the pressing rod (305) penetrating out of the adjusting seat (301) abuts against the inner wall of the guide groove (2), and the two fastening bolts (306) are threaded through the outer walls of the adjusting seat (301) and the supporting rod (302) respectively.
5. The plastic film crack detection device according to claim 1, wherein: the utility model discloses a support plate, including backup pad (1), including fixing base (501), drive roller (502) and auxiliary roller (503), backup pad (1) top is located the opposite side of flattening mechanism (6) and can dismantle and be connected with actuating mechanism (5), actuating mechanism (5) include fixing base (501), drive roller (502) and auxiliary roller (503), two the bottom of fixing base (501) all passes through bolted connection with the top of backup pad (1), drive roller (502) rotatable coupling is between two fixing bases (501), auxiliary roller (503) rotatable coupling is between two fixing bases (501) and be located the below of drive roller (502).
6. The plastic film crack detection device as set forth in claim 5, wherein: the driving mechanism (5) further comprises a motor (504), the motor (504) is fixedly arranged on the outer wall of one of the fixing seats (501), and the output end of the motor (504) is connected with the end part of the driving roller (502) through a key.
7. The plastic film crack detection device according to claim 1, wherein: the utility model discloses a light supplementing mechanism, including backup pad (1), light supplementing mechanism (8) are located at backup pad (1), light supplementing mechanism (7) can be dismantled to the below, positioning mechanism (7) are including locating plate (701), first guide cylinder (702), locating lever (703) and second guide cylinder (704), the bottom of locating plate (701) and the top threaded connection of backup pad (1), two first guide cylinder (702) respectively fixed mounting in the both sides at locating plate (701) top, two locating lever (703) respectively threaded connection in the inner wall of first guide cylinder (702), two second guide cylinder (704) respectively with two the surface threaded connection of locating lever (703).
8. The plastic film crack detection device according to claim 1, wherein: the light supplementing mechanism (8) comprises a cover plate (803), guide wheels (804) and a filter screen (806), wherein two sides of the bottom of the bracket (801) are fixedly connected with the tops of the second guide cylinders (704) respectively, the cover plate (803) is slidably connected to the outer wall of the bracket (801), the guide wheels (804) are rotatably connected to the outer wall of the cover plate (803), and the filter screen (806) is fixedly mounted on the inner side wall of the air duct (805).
9. The plastic film crack detection device as set forth in claim 4, wherein: the detection assembly (4) comprises a camera, and the camera is fixedly arranged on the outer surface of the fixing clamp (304).
10. A plastic film crack detection method, characterized in that the plastic film crack detection device according to any one of claims 1 to 9 is employed, comprising:
s1, installing a driving mechanism, a flattening mechanism and a positioning mechanism at a preset position, rotating a positioning rod, and adjusting the height of a light supplementing mechanism;
S2, passing the plastic film between the driving roller and the auxiliary roller, passing the plastic film from the top of the push roller, passing the plastic film between the other driving roller and the auxiliary roller after passing the plastic film from the upper part of the other push roller, starting the motor to convey the plastic film, pushing the push roller by means of the elasticity of the compression spring, and pushing and extending the plastic film by the push roller;
S3, the width of the plastic film is used for adjusting the position of the cover plate so as to cover redundant lamplight, the air duct is connected with external air supply equipment, and then air is blown out to the two sides of the bracket through the air duct at an inclined angle, so that the plastic film is further flattened, meanwhile, the plastic film is blown, shake occurs at a crack, and the detection assembly is convenient to detect.
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| DE102010055582A1 (en) * | 2010-12-21 | 2012-06-21 | Kraussmaffei Berstorff Gmbh | Smoothing unit for smoothing plastic film or plastic plate, has smoothing roll, smoothing roll drive for driving smoothing roll and smoothing roll sensor for detecting kinetic momentum characterizing rotational movement of smoothing roll |
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