CN112611755A - Transparent PET film polishing device - Google Patents
Transparent PET film polishing device Download PDFInfo
- Publication number
- CN112611755A CN112611755A CN202011425726.1A CN202011425726A CN112611755A CN 112611755 A CN112611755 A CN 112611755A CN 202011425726 A CN202011425726 A CN 202011425726A CN 112611755 A CN112611755 A CN 112611755A
- Authority
- CN
- China
- Prior art keywords
- conveying
- stripping
- pet film
- polishing device
- transparent pet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920002799 BoPET Polymers 0.000 title claims abstract description 24
- 238000005498 polishing Methods 0.000 title claims abstract description 16
- 239000013589 supplement Substances 0.000 claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 230000007246 mechanism Effects 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 12
- 239000012528 membrane Substances 0.000 claims description 8
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 8
- 230000001502 supplementing effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 2
- 238000007599 discharging Methods 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 description 10
- 239000000047 product Substances 0.000 description 7
- 239000003292 glue Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 241000272165 Charadriidae Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000012780 transparent material Substances 0.000 description 2
- 208000004350 Strabismus Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- 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
- G01N21/8806—Specially adapted optical and illumination features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/54—Article strippers, e.g. for stripping from advancing elements
-
- 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
Landscapes
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Mechanical Engineering (AREA)
- Engineering & Computer Science (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention provides a transparent PET film polishing device, which comprises a jig plate arranged on production equipment, wherein a conveying area for conveying a carrier tape is arranged on the jig plate, the two ends of the conveying area are a feeding side and a discharging side, and a plurality of PET films are arranged on the carrier tape; the overhead annular light filling lamp that corresponds with the conveying district that is provided with on the conveying district of tool board, is provided with a plurality of negative pressure hole on the conveying district of tool board, and the both sides in conveying district are provided with a plurality of stopper. The invention discloses a transparent PET film polishing device which can conveniently and uniformly supplement light and has good leveling and supporting performance.
Description
Technical Field
The invention relates to the field of production and processing, in particular to a transparent PET film polishing device.
Background
For a production process of an industrial product, a product inspection process is an important step. The traditional detection process adopts manual detection, so that not only is the efficiency low, but also the cost is high. Compared with the traditional manual detection, the automatic detection method has the advantages that the machine is adopted to automatically detect industrial products, the image acquisition device is used for acquiring images of the products, and the images are transmitted into the computer and then matched with corresponding templates according to corresponding algorithms, so that whether the products have defects or not is detected. However, in the process of image acquisition, the product is not well illuminated on the production line, and the definition of image acquisition is easily influenced. In the prior art, the adopted mode is memorability polishing. The definition and the accuracy of image acquisition are improved in a light supplementing mode, and the detection effect is further improved.
For example, the prior art; patent application No. CN 201520987887.8; the patent name: a display screen module protective film side light modulation adjusting device; the utility model discloses a display screen module protection film side adjusting device that polishes, including testing platform, camera support, main camera, a plurality of strabismus camera, side support and the side light source of polishing. The main-view camera is arranged on the camera support in a sliding mode along the vertical direction, the oblique-view cameras are arranged on the camera support in a sliding mode along the vertical direction and in a rotating mode, and the oblique-view cameras are arranged around the main-view camera; the main-view camera is positioned right above the detection platform, and the oblique-view camera is positioned obliquely above the detection platform; the quantity of side is polished the support and is a plurality of, and a plurality of sides are polished the support and surround in testing platform setting, and the side is polished the light source and is rotated, remove along the horizontal direction, go up and down to locate on the side is polished the support along vertical direction.
And, prior art, patent application No.: CN 201920239663.7; the patent name: a kind of digitized car marks the surface finish detection equipment; disclosed is a digital automobile sign surface finish detection device, which comprises: computer display screen, host computer, detection box, camera, top multi freedom platform mount, multi freedom platform, electric putter, ball pivot, light, cross objective table, short prism, long prism, high-speed joint public head, high-speed joint female head, angle point, light-tight ya keli board, photomask, backplate. The sampling device comprises a camera, a multi-degree-of-freedom platform and a lighting lamp, wherein the multi-degree-of-freedom platform drives the lighting lamp to rotate at different angles inside a lightproof shading box body which is up, down, left, right and rear, and the camera takes pictures of the surface of the car logo to complete sampling.
The light supplement device in the prior art also has the following disadvantages: firstly, the positioning is inconvenient, the uniformity of light supplement is poor, and multiple light supplement lamps are required to be arranged for multi-angle light supplement; secondly, the soft and light material belt is inconvenient to convey, and the conveying flatness is not good; thirdly, it is inconvenient to perform a peeling operation on the conveyed work on the tape.
Disclosure of Invention
The invention overcomes the defects of the prior art, and provides the transparent PET film polishing device which can conveniently and uniformly supplement light and has good leveling and supporting performance.
In order to achieve the purpose, the invention adopts the technical scheme that: a transparent PET film polishing device comprises a jig plate arranged on production equipment, wherein a conveying area for conveying a carrier tape is arranged on the jig plate, the two ends of the conveying area are a feeding side and a discharging side, and a plurality of PET films are arranged on the carrier tape; the tool plate is characterized in that an annular light supplement lamp corresponding to the conveying area is arranged on the conveying area of the tool plate in an overhead mode, a plurality of negative pressure holes are formed in the conveying area of the tool plate, and a plurality of limiting blocks are arranged on two sides of the conveying area.
In a preferred embodiment of the present invention, a stripping mechanism is disposed on the jig plate and located on the blanking side.
In a preferred embodiment of the invention, the stripping mechanism comprises a mounting frame arranged on the jig plate, and a stripping strip or a stripping rotating roller spanning on the blanking side is arranged on the mounting frame.
In a preferred embodiment of the invention, the stripping mechanism comprises a mounting frame arranged on the jig plate, and a pair of stripping strips or a pair of stripping rotating rollers which cross over the blanking side are arranged on the mounting frame; a conveying gap for conveying the carrier tape is reserved between the pair of stripping strips or the pair of stripping rotating rollers.
In a preferred embodiment of the present invention, the jig plate is provided with a plurality of support columns located at the periphery of the conveying area, the support columns are fixedly provided with positioning frames, and the lower portions of the positioning frames are fixedly provided with annular light supplement lamps corresponding to the conveying area.
In a preferred embodiment of the present invention, a limiting groove is disposed on a side of the limiting block close to the conveying area.
The invention solves the defects existing in the technical background, and has the beneficial technical effects that:
the invention discloses a transparent PET film polishing device which can conveniently and uniformly supplement light and has good leveling and supporting performance.
First, through the built on stilts annular light filling lamp that is provided with on the tool board, be favorable to carrying the PET membrane of arranging on the area to carry through the loop configuration of annular light filling lamp on the one hand and carry out even light filling, on the other hand, the through-hole at the center of annular light filling lamp is convenient for observe or image acquisition detects carrying the PET membrane of arranging on the area.
And secondly, the annular light supplement lamp is arranged above the conveying area in an overhead mode through the support columns, a conveying gap is reserved between the conveying area and the annular light supplement lamp, and the carrier tape with the PET film arranged conveniently penetrates through the conveying gap.
Thirdly, a stripping mechanism is arranged on the jig plate for blanking measurement, the carrier tape with the PET film arranged passes through the stripping mechanism, and is conveyed to pass through a stripping strip or a stripping roller carrier tape to be subjected to turning stress, so that the carrier tape with different flexibility degrees and the PET film are separated.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic axial view of a preferred embodiment of the present invention when disassembled;
FIG. 2 is a schematic combined axial view of the preferred embodiment of the present invention;
FIG. 3 is a schematic top view of a preferred embodiment of the present invention;
the meaning of the reference numerals in the figures; 1-a jig plate, 11-supporting columns, 12-limiting blocks, 14-a mounting rack, 141-a stripping rotating roller, 2-a carrier tape, 21-a PET film, 211-glue, 3-an annular light supplement lamp, 31-a second mounting hole, 4-a positioning rack, 41-a positioning hole and 42-a first mounting hole.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings and examples, which are simplified schematic drawings and illustrate only the basic structure of the invention in a schematic manner, and thus show only the constituents relevant to the invention.
It should be noted that, if directional indications (such as up, down, bottom, top, etc.) are involved in the embodiment of the present invention, the directional indications are only used for explaining the relative position relationship, motion situation, etc. of each component in a certain posture, and if the certain posture is changed, the directional indications are changed accordingly. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are intended to be inclusive and mean, for example, that there may be a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-3, a transparent PET film polishing device comprises a jig plate 1 arranged on a production device, wherein a conveying mechanism and a material receiving mechanism are respectively arranged on two sides of the jig plate 1, the conveying mechanism is used for conveying a carrier tape 2, a plurality of PET films 21 are arranged on the carrier tape 2, glue 211 is arranged on the PET films 21, and the glue 211 is transparent glue. One end of the carrier tape 2 is wound on the material receiving mechanism, the material receiving mechanism adopts a material receiving rotary rod in the prior art, and the material receiving rotary rod is driven to rotate by a material receiving motor. The carrier tape 2 conveyed on the conveying mechanism is rolled up by the material receiving motor, and the conveying mechanism adopts a discharging rotating rod in the prior art. But is not limited thereto and other prior art transfer mechanisms may be employed in other embodiments. The feeding roller and the receiving roller limit the transmission tension of the carrier tape 2.
Specifically, the jig plate 1 is provided with a conveying area for the carrier tape 2 to penetrate through, and two ends of the conveying area are a feeding side and a discharging side; all be provided with support column 11 perpendicularly on four angles that lie in the conveying district on tool board 1, four support columns 11 lie in the periphery in conveying district, and are provided with spacing boss on four support columns 11, and four support columns 11 wear to establish locating hole 41 of locating rack 4, support the location through the boss. The lower part of the positioning frame 4 is fixedly provided with an annular light supplement lamp 3 corresponding to the conveying area. Be provided with a plurality of mounting holes 42 on the locating rack 4, be provided with a plurality of mounting holes two 31 on the annular light filling lamp 3, annular light filling lamp 3 passes through the connecting piece and makes up mounting holes two 31 and the mounting holes 42 fixed mounting on the locating rack 4, and the mounting bracket 14 center is provided with the logical groove that corresponds with the centre bore of annular light filling lamp 3. Annular light filling lamp 3 is built on stilts the setting in the conveying district top of tool board 1. The conveying area of the jig plate 1 is uniformly provided with a plurality of negative pressure holes, and the negative pressure holes are used for adsorbing the carrier tape 2. The outside of the conveying area of the jig plate 1 is provided with a limiting block 12. One side that stopper 12 is close to the conveying district is provided with the spacing recess of indent, and the support of one side and stopper 12 of carrier band 2 is leaned on, and carrier band 2 wears to establish spacing recess.
Specifically, the jig plate 1 is provided with a stripping mechanism located on the blanking side. The stripping mechanism comprises a mounting frame 14 arranged on the jig plate 1, and a pair of stripping rotating rollers 141 arranged in parallel and across the blanking side are arranged on the mounting frame 14; a conveyance gap for passing the carrier tape 2 is reserved between the pair of peeling rollers 141 arranged in parallel. The carrier tape 2 is wound around the peeling roller 141 above, and then wound around the receiving roller after being wound into the transfer gap. The carrier tape 2 is bent along the outer circumference of the peeling roller above so that a peeling angle is formed between the carrier tape 2 and the peeling roller 141 above. In the process of winding the carrier tape 2, the carrier tape 2 is wound and conveyed, and the carrier tape 2 is pulled to advance and displace, while the PET film 21 on the carrier tape 2 is peeled off from the carrier tape 2. However, in other embodiments, the peeling mechanism may have a pair of glass strips arranged in parallel, and a transfer gap for passing the carrier tape 2 is reserved between the glass strips arranged in parallel.
Further, the carrier tape 2 is made of transparent materials, and a dark color back plate is arranged on the jig plate 1 for the convenience of highlighting. More specifically, the dark backing plate is black.
The working principle of the invention is as follows:
as shown in fig. 1 to 3, the carrier tape 2 with the PET film 21 arranged thereon penetrates through a transmission gap reserved between the transmission area of the jig plate 1 and the annular light supplement lamp 3 from the feeding side of the jig plate 1, then penetrates out from the discharging side of the jig plate 1, and then winds back downwards from above the peeling mechanism to the receiving mechanism located at the lower part of the peeling mechanism. The carrier tape 2 is furled by the material receiving mechanism, and the carrier tape 2 is driven to penetrate through the peeling mechanism along the conveying area and then furled to the material receiving rotary rod of the material receiving mechanism. Further, the annular light supplement lamp 3 is an LED type annular light supplement lamp.
Carry out the light filling through annular light filling lamp 3 to the PET membrane 21 on the carrier band 2 in the conveying district, the product outward appearance state on the PET membrane 21 is highlighted. The carrier band 2 is made of transparent materials, and a dark color back plate is arranged on the jig plate 1 for the convenience of highlighting. Further, the dark backboard is black.
Outside image acquisition mechanism passes through the logical groove that the centre bore that sets up with annular light filling lamp 3 corresponds at mounting bracket 14 center, utilizes image acquisition mechanism and leads to groove and centre bore and correspond, reduces sheltering from and influence of mounting bracket 14 and annular light filling lamp 3 to carrying 2 last PET membrane 21, promotes image acquisition mechanism's image acquisition's convenience. Annular light filling lamp 3 of annular structure can further concentrate the light source, promotes the light filling performance to the PET membrane 21 on the carrier band 2.
The above embodiments are specific supports for the idea of the present invention, and the protection scope of the present invention is not limited thereby, and any equivalent changes or equivalent modifications made on the basis of the technical scheme according to the technical idea of the present invention still belong to the protection scope of the technical scheme of the present invention.
Claims (6)
1. The utility model provides a device is polished to transparent PET membrane, is including setting up the tool board on production facility, be provided with the conveying district that is used for conveying the carrier band on the tool board, the both ends in conveying district are material loading side and unloading side, be provided with a plurality of PET membrane, its characterized in that on the carrier band: the tool plate is characterized in that an annular light supplement lamp corresponding to the conveying area is arranged on the conveying area of the tool plate in an overhead mode, a plurality of negative pressure holes are formed in the conveying area of the tool plate, and a plurality of limiting blocks are arranged on two sides of the conveying area.
2. The transparent PET film polishing device according to claim 1, wherein: and the jig plate is provided with a stripping mechanism positioned on the blanking side.
3. The transparent PET film polishing device according to claim 2, wherein: the stripping mechanism comprises an installation frame arranged on the jig plate, and stripping strips or stripping rotating rollers stretching over the blanking side are arranged on the installation frame.
4. The transparent PET film polishing device according to claim 2, wherein: the stripping mechanism comprises a mounting frame arranged on the jig plate, and a pair of stripping strips or a pair of stripping rotating rollers stretching across the blanking side are arranged on the mounting frame; a conveying gap for conveying the carrier tape is reserved between the pair of stripping strips or the pair of stripping rotating rollers.
5. The transparent PET film polishing device according to claim 3 or 4, wherein: the jig plate is provided with a plurality of supporting columns located on the periphery of the conveying area, the supporting columns are fixedly provided with positioning frames, and the lower portions of the positioning frames are fixedly provided with annular light supplementing lamps corresponding to the conveying area.
6. The transparent PET film polishing device according to claim 1, wherein: and one side of the limiting block, which is close to the conveying area, is provided with a limiting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011425726.1A CN112611755A (en) | 2020-12-09 | 2020-12-09 | Transparent PET film polishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011425726.1A CN112611755A (en) | 2020-12-09 | 2020-12-09 | Transparent PET film polishing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112611755A true CN112611755A (en) | 2021-04-06 |
Family
ID=75229607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011425726.1A Pending CN112611755A (en) | 2020-12-09 | 2020-12-09 | Transparent PET film polishing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112611755A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202373663U (en) * | 2011-11-28 | 2012-08-08 | 天津力神电池股份有限公司 | Polyethylene glycol terephthalate (PET) membrane stripping machine for polymer lithium ion battery |
| CN205553514U (en) * | 2016-02-18 | 2016-09-07 | 上海金东唐科技股份有限公司 | A peeling means for peeling off PET membrane on PET pellicular zone |
| WO2018090362A1 (en) * | 2016-11-21 | 2018-05-24 | 江苏比微曼智能科技有限公司 | Automatic film-stripping device |
| CN111137645A (en) * | 2019-12-31 | 2020-05-12 | 四川索牌科技股份有限公司 | Detection system and detection method for paper cover |
| CN111879792A (en) * | 2020-09-03 | 2020-11-03 | 浙江水晶光电科技股份有限公司 | Chip detection equipment |
| CN214374351U (en) * | 2020-12-09 | 2021-10-08 | 江苏比微曼智能科技有限公司 | Transparent PET film polishing device |
-
2020
- 2020-12-09 CN CN202011425726.1A patent/CN112611755A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202373663U (en) * | 2011-11-28 | 2012-08-08 | 天津力神电池股份有限公司 | Polyethylene glycol terephthalate (PET) membrane stripping machine for polymer lithium ion battery |
| CN205553514U (en) * | 2016-02-18 | 2016-09-07 | 上海金东唐科技股份有限公司 | A peeling means for peeling off PET membrane on PET pellicular zone |
| WO2018090362A1 (en) * | 2016-11-21 | 2018-05-24 | 江苏比微曼智能科技有限公司 | Automatic film-stripping device |
| CN111137645A (en) * | 2019-12-31 | 2020-05-12 | 四川索牌科技股份有限公司 | Detection system and detection method for paper cover |
| CN111879792A (en) * | 2020-09-03 | 2020-11-03 | 浙江水晶光电科技股份有限公司 | Chip detection equipment |
| CN214374351U (en) * | 2020-12-09 | 2021-10-08 | 江苏比微曼智能科技有限公司 | Transparent PET film polishing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100782445B1 (en) | A method for adhesion of film and an apparatus thereof | |
| CN107315017B (en) | Optical film vision intelligent detection equipment | |
| CN107228861B (en) | Defect detection device of liquid crystal panel | |
| KR20090093858A (en) | Adhesive film position detector and adhesive film joining apparatus | |
| CN214374351U (en) | Transparent PET film polishing device | |
| TW201333593A (en) | Method and device for laminating optical sheet, and pressure-sensitive adhesive sheet used thereto | |
| CN108662975B (en) | Product detection device and product detection system | |
| CN114235829A (en) | Chip carrier tape detector | |
| CN107362980A (en) | Optical film Visual intelligent detects and defective products removal equipment | |
| CN112611755A (en) | Transparent PET film polishing device | |
| TWI557401B (en) | Automated detection method | |
| CN207198172U (en) | The material strip position regulating system of optical film Visual intelligent detection device | |
| CN210862756U (en) | Backlight optical automatic inspection machine | |
| JP2003104338A (en) | Labeling device | |
| CN111879787A (en) | Automatic liquid crystal display defect detection equipment | |
| CN107449785B (en) | Visual intelligent detection mechanism for optical film | |
| CN212449662U (en) | Automatic detection system for liquid crystal panel | |
| CN207089750U (en) | One kind patch auxiliary material machine | |
| CN221707328U (en) | Multi-channel high-speed checking device for labels | |
| CN207215721U (en) | A kind of Visual intelligent testing agency of optical film | |
| CN211086135U (en) | Novel intelligence outward appearance detects device | |
| CN213659126U (en) | Detection device in TFT-LCD box | |
| CN221079124U (en) | LCD display screen inspection desk | |
| CN216050624U (en) | Poor test fixture that presses in a poor light | |
| CN221707315U (en) | Appearance detection device for silica gel watch strap |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |