CN110412052A - A kind of curved surface hot padding quality determining method and system - Google Patents
A kind of curved surface hot padding quality determining method and system Download PDFInfo
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- CN110412052A CN110412052A CN201910741308.4A CN201910741308A CN110412052A CN 110412052 A CN110412052 A CN 110412052A CN 201910741308 A CN201910741308 A CN 201910741308A CN 110412052 A CN110412052 A CN 110412052A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
-
- 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
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
-
- 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
- G01N21/956—Inspecting patterns on the surface of objects
- G01N21/95607—Inspecting patterns on the surface of objects using a comparative method
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
- G06T7/0004—Industrial image inspection
- G06T7/001—Industrial image inspection using an image reference approach
-
- 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
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
- G01N2021/8887—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges based on image processing techniques
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10004—Still image; Photographic image
- G06T2207/10012—Stereo images
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30108—Industrial image inspection
- G06T2207/30144—Printing quality
Abstract
The present invention relates to hot press printing technology fields, specifically disclose a kind of curved surface hot padding quality determining method and system, and method includes: to carry out Thickness sensitivity to the hot pressing pattern on thermoplastic film；3-D scanning is carried out to transfer curved surface and hot pressing pattern and generates the 3-D image of transfer curved surface and hot pressing pattern according to the result of 3-D scanning；From the radius and central angle of acquiring three-dimensional images transfer curved surface, curved surface will be transferred according to the radius and central angle for transferring curved surface and hot pressing pattern expands into emulation planar structure；The hot pressing pattern emulated in planar structure is compared with the hot pressing pattern on thermoplastic film；Hot pressing pattern thickness at emulation planar structure position corresponding with the test point of thermoplastic film is measured, and the Thickness sensitivity result of measurement result and thermoplastic film is compared.The present invention provides a kind of curved surface hot padding quality determining method and system, is able to achieve the automatic detection of hot pressing quality, saves manpower and simultaneously improves detection accuracy.
Description
Technical field
The present invention relates to hot press printing technology field more particularly to a kind of curved surface hot padding quality determining method and systems.
Background technique
Hot padding refers to that the coining foil that will be cut out is attached on position required by molded part, by the dress that can heat pressurization
It sets, the superjacent operation of foil will be imprinted.According to the difference of coining foil type, the outer of metallic luster or colour can be obtained
Table can make plastics metalizing.The moulded products that hot padding is suitable for having flat surface.
The main technological steps of hot padding are as follows: on a piece of thermoplastic film insertion mould machine；Type chamber is allowed to empty, with type chamber
In be machined with the tool (inlaid piece of mould) of micro-structure and press to the diaphragm, its temperature has risen to softening temperature or more at this time, then
Inlaid piece of mould is full of by plastic material, so as to complete the complete duplication of micro-structure；Then whole device is allowed to cool down, and allowed
Inlaid piece of mould and plastic material are detached from.
With casting on the contrary, in hot embossing process, polymer only flows in the transition process from paper tinsel film piece to micro-structure
A short distance is moved.Therefore, the stress of very little is only generated on polymer, molding components are well suited for doing optical element,
Such as waveguide and lens.Hot press printing technology is particularly suitable for manufacture plate or paillon, because only need to be to a small amount of in these applications
Plastics carry out molding processing.
Hot pressing temperature, hot pressing pressure and hot pressing time can all impact hot pressing quality, as long as there is a parameter not right,
It all may result in imprinted pattern not to be fully transferred on product, or be easy the problems such as falling off from product.At present for heat
Pressure quality relies primarily on artificial observation, and there is no the detection methods of automation, when the transfer surface of product is plane, by artificial
Observation also reluctantly can be with when the transfer surface of product is curved surface, such as when the side of tubular products carries out hot pressing, worker needs
Convert viewing angle back and forth and convert plane pattern for the imprinted pattern on curved surface in brain, then with the figure on thermoplastic film
Case is compared, to judge whether imprinted pattern reaches requirement, such operation labor intensive, and is easy error.
Therefore, it is necessary to a kind of curved surface hot padding quality determining methods, are able to achieve the automatic detection of hot pressing quality, save people
Power simultaneously improves detection accuracy.
Summary of the invention
It is an advantage of the invention to provide a kind of curved surface hot padding quality determining method and systems, are able to achieve hot pressing
The automatic detection of quality saves manpower and improves detection accuracy.
To achieve these objectives, in a first aspect, the present invention provides a kind of curved surface hot padding quality determining method, for from heat
The hot pressing pattern integrity that plastic membrane is transferred on transfer curved surface is detected comprising:
Thickness sensitivity is carried out to the hot pressing pattern on thermoplastic film；
3-D scanning is carried out to the transfer curved surface and hot pressing pattern and the transfer is generated according to the result of 3-D scanning
The 3-D image of curved surface and hot pressing pattern；
From described in the acquiring three-dimensional images transfer curved surface radius and central angle, according to it is described transfer curved surface radius and
The transfer curved surface and hot pressing pattern are expanded into emulation planar structure by central angle；
Hot pressing pattern in the emulation planar structure is compared with the hot pressing pattern on the thermoplastic film, if two
The similarity of person reaches preset value, then product quality is passed；Otherwise, product quality is failed；
Hot pressing pattern thickness at emulation planar structure position corresponding with the test point of thermoplastic film is measured,
And measurement result and the Thickness sensitivity result of the thermoplastic film are compared；If the difference of the two within the scope of allowable error,
Then product quality is passed, and otherwise, product quality is failed.
Preferably, the hot pressing pattern on thermoplastic film carries out Thickness sensitivity specifically:
At least two test points are chosen on the hot pressing pattern, using the thickness average value of each test point as Thickness sensitivity
Testing result.
Preferably, it is described by it is described emulation planar structure on hot pressing pattern and the thermoplastic film on hot pressing pattern into
Row comparison, if the similarity of the two reaches preset value, product quality is passed；Otherwise, product quality is failed, further includes:
When product is failed, the first information warning is issued.
Preferably, the hot pressing pattern at described pair of emulation planar structure position corresponding with the test point of thermoplastic film is thick
Degree measures, and measurement result and the Thickness sensitivity result of the thermoplastic film are compared；If the difference of the two is allowing
In error range, then product quality is passed, and otherwise, product quality is failed, further includes:
When product is failed, the second information warning is issued.
Preferably, first information warning and/or the second information warning can be text pop-up, sound prompting, equipment
At least one of vibration and warning lamp flashing.
Preferably, first information warning and the second information warning be not identical.
Preferably, before the hot pressing pattern progress Thickness sensitivity on thermoplastic film, further includes:
The thermoplastic film for not carrying out hot padding is provided, is pasted with hot pressing pattern on the thermoplastic film.
On the other hand, the present invention provides a kind of quality detecting system, for being transferred to transfer curved surface to from thermoplastic film
Hot pressing pattern integrity detected comprising:
Thickness detection apparatus, for carrying out Thickness sensitivity to the hot pressing pattern on thermoplastic film；
3-D scanning imaging device, for carrying out 3-D scanning to the transfer curved surface and hot pressing pattern and being swept according to three-dimensional
The result retouched generates the 3-D image of the transfer curved surface and hot pressing pattern；
Computer is handled, is electrically connected respectively with the thickness detection apparatus and 3-D scanning imaging device, is used for from described three
Dimension image obtains the radius and central angle of the transfer curved surface, and the radius and central angle according to the transfer curved surface are by the transfer
Curved surface and hot pressing pattern expand into emulation planar structure；By the hot pressing pattern and the thermoplastic film in the emulation planar structure
On hot pressing pattern compare, if the similarity of the two reaches preset value, product quality is passed；Otherwise, product quality is not
It passes；Hot pressing pattern thickness at emulation planar structure position corresponding with the test point of thermoplastic film is measured, and
Measurement result and the Thickness sensitivity result of the thermoplastic film are compared；If the difference of the two within the scope of allowable error,
Product quality is passed, and otherwise, product quality is failed.
Preferably, further includes:
Alarming device is connect, for issuing information warning when detecting that product is failed with the processing computer.
Preferably, further includes:
Tensioning apparatus is pasted with hot pressing pattern on the thermoplastic film for providing the thermoplastic film for not carrying out hot padding.
The beneficial effects of the present invention are: a kind of curved surface hot padding quality determining method and system are provided, hot pressing is able to achieve
The automatic detection of quality saves manpower and improves detection accuracy.
Detailed description of the invention
It, below will be to embodiment or existing skill in order to illustrate more clearly of the present embodiment or technical solution in the prior art
Attached drawing needed in art description is briefly described, it should be apparent that, the accompanying drawings in the following description is only the present invention
Some embodiments for those of ordinary skill in the art without any creative labor, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the flow chart for the curved surface hot padding quality determining method that the embodiment of the present invention one provides；
Fig. 2 is the structural block diagram of quality detecting system provided by Embodiment 2 of the present invention.
In figure:
1, tensioning apparatus；
2, thickness detection apparatus；
3,3-D scanning imaging device；
4, computer is handled；
5, alarming device；
6, thermoplastic film；601, hot pressing pattern.
Specific embodiment
To enable the purpose of the present invention, feature, advantage more obvious and understandable, below in conjunction in the present embodiment
Attached drawing, the technical solution in the present embodiment is clearly and completely described, it is clear that the embodiments described below are only
It is a part of the embodiment of the present invention, and not all embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art
All other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Embodiment one
The present embodiment provides a kind of curved surface hot padding quality determining methods, for being transferred to transfer curved surface to from thermoplastic film
On hot pressing pattern integrity detected, the application scenarios suitable for hot padding field are able to achieve the automatic of hot pressing quality
Change detection, save manpower and simultaneously improve detection accuracy, the curved surface hot padding quality determining method by a kind of quality detecting system Lai
It executes, passes through software and or hardware realization.
Fig. 1 is the flow chart for the curved surface hot padding quality determining method that the present embodiment one provides.
Referring to Fig. 1, the curved surface hot padding quality determining method includes the following steps:
S10: the thermoplastic film for not carrying out hot padding is provided, is pasted with hot pressing pattern on the thermoplastic film.
S20: Thickness sensitivity is carried out to the hot pressing pattern on thermoplastic film.
Specifically, at least two test points are chosen on the hot pressing pattern, using the thickness average value of each test point as
The testing result of Thickness sensitivity.Repeatedly measurement can reduce measurement error.Preferably, the quantity of test point is 5, and four angles are each
One, center one.
S30: 3-D scanning is carried out to the transfer curved surface and hot pressing pattern and according to the generation of the result of 3-D scanning
Transfer the 3-D image of curved surface and hot pressing pattern.
S40: from the radius and central angle for transferring curved surface described in the acquiring three-dimensional images, the half of curved surface is transferred according to described
The transfer curved surface and hot pressing pattern are expanded into emulation planar structure by diameter and central angle.
It should be noted that according to radius and central angle being the specific algorithm and relevant calculation program of plane by Doubly curved surfaces
Belong to the prior art, not the emphasis of the present embodiment, therefore herein without repeating.
S50: the hot pressing pattern in the emulation planar structure is compared with the hot pressing pattern on the thermoplastic film,
If the similarity of the two reaches preset value, product quality is passed；Otherwise, product quality is failed.
Preferably, the comparison in step S50 can be carried out by image recognition technology, wherein can be carried out deep learning
Programmed algorithm can satisfy the industrially requirement to the comparing result accuracy substantially.Pass through image comparison, so that it may hair in time
The problems such as all or part of hot pressing pattern is not printed on curved surface or falls off from curved surface in existing horizontal direction, guarantees hot padding
The integrality of pattern transfer horizontal direction in the process.
S60: the hot pressing pattern thickness at emulation planar structure position corresponding with the test point of thermoplastic film is carried out
Measurement, and measurement result and the Thickness sensitivity result of the thermoplastic film are compared；If the difference of the two is in allowable error model
In enclosing, then product quality is passed, and otherwise, product quality is failed.
Specifically, compared by thickness, so that it may in time on discovery vertical direction all or part of hot pressing pattern not by
The problems such as being imprinted on curved surface or falling off from curved surface guarantees the integrality of pattern transfer vertical direction in hot embossing process.
Preferably, in step s 50, when product is failed, the first information warning is issued.In step S60, work as product
When failing, the second information warning is issued.
In the present embodiment, first information warning and/or the second information warning can for text pop-up, sound prompting,
At least one of equipment vibration and warning lamp flashing.Further, first information warning and the second information warning not phase
Together.
Curved surface hot padding quality determining method provided in this embodiment can be used for the curved surface heat in hot press printing technology field
Situation is imprinted, the automatic detection of hot pressing quality is able to achieve, save manpower and improves detection accuracy.
Embodiment two
Quality detecting system provided in this embodiment can be used for executing the curved surface hot padding matter of the embodiment of the present invention offer
Quantity measuring method has corresponding function and beneficial effect.
Fig. 2 is the structural block diagram for the quality detecting system that the present embodiment two provides.
Referring to fig. 2, a kind of quality detecting system, comprising:
Tensioning apparatus 1 is pasted with hot pressing figure on the thermoplastic film 6 for providing the thermoplastic film 6 for not carrying out hot padding
Case 601；
Thickness detection apparatus 2, for carrying out Thickness sensitivity to the hot pressing pattern 601 on thermoplastic film 6；
3-D scanning imaging device 3, for carrying out 3-D scanning to the transfer curved surface and hot pressing pattern 601 and according to three
The result of dimension scanning generates the 3-D image of the transfer curved surface and hot pressing pattern 601；
Computer 4 is handled, is electrically connected respectively with the thickness detection apparatus 2 and 3-D scanning imaging device 3, is used for from described
The radius and central angle that curved surface is transferred described in acquiring three-dimensional images, radius and central angle according to the transfer curved surface described will turn
Print curved surface and hot pressing pattern 601 expand into emulation planar structure；By it is described emulation planar structure on hot pressing pattern 601 with it is described
Hot pressing pattern 601 on thermoplastic film 6 compares, if the similarity of the two reaches preset value, product quality is passed；It is no
Then, product quality is failed；To the hot pressing pattern at emulation planar structure position corresponding with the test point of thermoplastic film 6
601 thickness measure, and measurement result and the Thickness sensitivity result of the thermoplastic film 6 are compared；If the difference of the two
Within the scope of allowable error, then product quality is passed, and otherwise, product quality is failed.
Specifically, tensioning apparatus 1 can be tensioning roller group, apply pulling force appropriate from both ends to thermoplastic film 6, to guarantee
Thermoplastic film 6 is smooth.Thickness detection apparatus 2 can be higher laser range finder of precision etc..3-D scanning imaging device 3 is general
Including several cameras or can be can move freely by one to the single camera of the position of all angles of subject
It constitutes, three-dimensional imaging is realized by image mosaic technology.Processing computer 4, which can be installed, cooperates work with 3-D scanning imaging device 3
The three-dimensional imaging software of work and installation are for by Doubly curved surfaces and the simulation software that measures.
In this present embodiment, by the hot pressing on the hot pressing pattern 601 and the thermoplastic film 6 in the emulation planar structure
Pattern 601 compares, if the similarity of the two reaches preset value, product quality is passed；Otherwise, product quality is failed；
When product is failed, the first information warning is issued.Position corresponding with the test point of thermoplastic film 6 to emulation planar structure
601 thickness of hot pressing pattern at place measures, and measurement result and the Thickness sensitivity result of the thermoplastic film 6 are compared；
If the difference of the two, within the scope of allowable error, product quality is passed, and otherwise, product quality is failed, when product is failed
When, issue the second information warning.
It should be noted that information warning can be text pop-up and/or sound prompting etc., these can be by processing computer
4 are sent, i.e. pop-up occurs in the screen of processing computer 4, and the loudspeaker connecting with processing computer 4 make a sound prompting.
Certainly, information warning can also be sent by the alarming device 5 connecting with the processing computer 4.For example, alarming device
5 can be the mobile phone with the processing wireless communication connection of computer 4, when product is failed in 601 contrasting detection of hot pressing pattern, then hand
Machine issues sound prompting perhaps the text pop-up or high-frequency vibration of " failing in 601 contrasting detection of hot pressing pattern ", Huo Zhehu
Inhale the flashing of lamp purple light；When product is failed in thickness contrasting detection, then mobile phone issues " failing in thickness contrasting detection "
Sound prompting perhaps text pop-up perhaps low-frequency vibration or breath light blue light flashing in another example, alarming device 5 can be change
The LED light group of color, when product is failed in 601 contrasting detection of hot pressing pattern, then LED light group feux rouges high frequency flicker；Work as product
It fails in thickness contrasting detection, then LED light group green light low frequency flicker etc.
The present embodiment provides a kind of quality detecting systems, are able to achieve the automatic detection of hot pressing quality, save manpower and mention
High measurement accuracy.
In embodiment provided herein, it should be understood that disclosed system, unit, device and method can be with
It realizes by another way.For example, all embodiments described above are only schematical, for example, said units or
The division of person's module etc., only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple
Unit, module and component can be combined or can be integrated into another system, or some features can be ignored, or not hold
Row.Another point, shown or discussed mutual coupling, direct-coupling or communication connection can be through some interfaces,
The indirect coupling or communication connection of device or unit can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, each functional unit in each embodiment of the application can integrate in one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, the technical solution of the application is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
Embody, which is stored in a computer readable storage medium, including some instructions use so that
One terminal device (can be mobile phone, notebook or other electronic equipments etc.) executes side described in each embodiment of the application
The all or part of the steps of method.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can store journey
The medium of sequence code.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of curved surface hot padding quality determining method, for complete to the hot pressing pattern being transferred on transfer curved surface from thermoplastic film
Whole property is detected characterized by comprising
Thickness sensitivity is carried out to the hot pressing pattern on thermoplastic film；
3-D scanning is carried out to the transfer curved surface and hot pressing pattern and the transfer curved surface is generated according to the result of 3-D scanning
With the 3-D image of hot pressing pattern；
Radius and the center of circle from the radius and central angle for transferring curved surface described in the acquiring three-dimensional images, according to the transfer curved surface
The transfer curved surface and hot pressing pattern are expanded into emulation planar structure by angle；
Hot pressing pattern in the emulation planar structure is compared with the hot pressing pattern on the thermoplastic film, if the two
Similarity reaches preset value, then product quality is passed；Otherwise, product quality is failed；
Hot pressing pattern thickness at emulation planar structure position corresponding with the test point of thermoplastic film is measured, and will
Measurement result and the Thickness sensitivity result of the thermoplastic film compare；If the difference of the two produces within the scope of allowable error
Quality is passed, and otherwise, product quality is failed.
2. curved surface hot padding quality determining method according to claim 1, which is characterized in that described on thermoplastic film
Hot pressing pattern carries out Thickness sensitivity specifically:
At least two test points are chosen on the hot pressing pattern, using the thickness average value of each test point as the inspection of Thickness sensitivity
Survey result.
3. curved surface hot padding quality determining method according to claim 1, which is characterized in that described by the emulation plane
Hot pressing pattern in structure is compared with the hot pressing pattern on the thermoplastic film, if the similarity of the two reaches preset value,
Then product quality is passed；Otherwise, product quality is failed, further includes:
When product is failed, the first information warning is issued.
4. curved surface hot padding quality determining method according to claim 3, which is characterized in that described pair of emulation planar structure
Hot pressing pattern thickness at position corresponding with the test point of thermoplastic film measures, and by measurement result and the thermoplastic
The Thickness sensitivity result of property film compares；If the difference of the two, within the scope of allowable error, product quality is passed, otherwise, produce
Quality is failed, further includes:
When product is failed, the second information warning is issued.
5. curved surface hot padding quality determining method according to claim 4, which is characterized in that first information warning
And/or second information warning can for text pop-up, sound prompting, equipment vibration and warning lamp flashing at least one of.
6. curved surface hot padding quality determining method according to claim 5, which is characterized in that first information warning with
Second information warning is not identical.
7. curved surface hot padding quality determining method according to claim 1, which is characterized in that described on thermoplastic film
Hot pressing pattern carries out before Thickness sensitivity, further includes:
The thermoplastic film for not carrying out hot padding is provided, is pasted with hot pressing pattern on the thermoplastic film.
8. a kind of quality detecting system, for being examined to the hot pressing pattern integrity being transferred on transfer curved surface from thermoplastic film
It surveys characterized by comprising
Thickness detection apparatus, for carrying out Thickness sensitivity to the hot pressing pattern on thermoplastic film；
3-D scanning imaging device, for carrying out 3-D scanning to the transfer curved surface and hot pressing pattern and according to 3-D scanning
As a result the 3-D image of the transfer curved surface and hot pressing pattern is generated；
Computer is handled, is electrically connected respectively with the thickness detection apparatus and 3-D scanning imaging device, is used for from the three-dimensional figure
Radius and central angle as obtaining the transfer curved surface, the radius and central angle according to the transfer curved surface are by the transfer curved surface
Emulation planar structure is expanded into hot pressing pattern；It will be on the hot pressing pattern and the thermoplastic film in the emulation planar structure
Hot pressing pattern compares, if the similarity of the two reaches preset value, product quality is passed；Otherwise, product quality is failed；
Hot pressing pattern thickness at emulation planar structure position corresponding with the test point of thermoplastic film is measured, and will measurement
As a result it compares with the Thickness sensitivity result of the thermoplastic film；If the difference of the two is within the scope of allowable error, product matter
Amount is passed, and otherwise, product quality is failed.
9. quality detecting system according to claim 8, which is characterized in that further include:
Alarming device is connect, for issuing information warning when detecting that product is failed with the processing computer.
10. quality detecting system according to claim 8, which is characterized in that further include:
Tensioning apparatus is pasted with hot pressing pattern on the thermoplastic film for providing the thermoplastic film for not carrying out hot padding.
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| CN201910741308.4A CN110412052B (en) | 2019-08-12 | 2019-08-12 | Curved surface hot stamping quality detection method and system |
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| CN201910741308.4A CN110412052B (en) | 2019-08-12 | 2019-08-12 | Curved surface hot stamping quality detection method and system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112649447A (en) * | 2020-12-30 | 2021-04-13 | 浙江久大纺织科技有限公司 | Fabric printing detection method based on color matrix |
| CN113588672A (en) * | 2021-09-29 | 2021-11-02 | 武汉绿色塑料包装有限公司 | Quality detection method for plastic product |
| CN115684206A (en) * | 2022-09-27 | 2023-02-03 | 江阴旺达商务贴有限公司 | Multi-azimuth electrostatic sticker quality identification device |
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