CN110530581A - Chemical product bottle foil sealing detection device and detection method - Google Patents
Chemical product bottle foil sealing detection device and detection method Download PDFInfo
- Publication number
- CN110530581A CN110530581A CN201910721112.9A CN201910721112A CN110530581A CN 110530581 A CN110530581 A CN 110530581A CN 201910721112 A CN201910721112 A CN 201910721112A CN 110530581 A CN110530581 A CN 110530581A
- Authority
- CN
- China
- Prior art keywords
- chemical product
- product bottle
- foil sealing
- pressure sensor
- mould group
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
Abstract
The invention discloses a kind of chemical product bottle foil sealing detection device and detection methods, including linear mould group driving mechanism, platen, pressure measuring mechanism；Linear mould group driving mechanism is mounted on platen, for radially imposing certain amount of compression in its circumference to the chemical product bottle for completing foil sealing production；Platen is for being fixedly mounted linear mould group driving mechanism and pressure measuring mechanism；Pressure measuring mechanism is mounted on platen, for detecting the counterforce values of its resistance to deformation to the chemical product bottle being extruded；According to the counterforce values of chemical product bottle resistance to deformation whether in threshold range, chemical product bottle foil sealing is judged.The present invention has rational design, easy to operate, can reliably realize the chemical product bottle foil sealing detection of more specifications.
Description
Technical field
The present invention relates to foil sealing detection fields, and in particular to a kind of chemical product bottle foil sealing detection device with
Detection method.
Background technique
Such as, liquid tank is usually first attached to high density polyethylene (HDPE) in process of production by the liquid chemical product such as thimerosal
(HDPE) in bottle, then the bottle cap containing aluminium-foil gasket is tightened on canned good bottle, using electromagnetic wave thermal energy, so that
The bonding melting layer of aluminium-foil gasket realizes beautiful firm bottle neck aluminium foil sealing.If foil sealing is bad, chemical product can be produced
Raw leakage, influences the quality and shelf lives of product.Therefore bottle neck aluminium foil sealing propertytest is particularly important.
Currently, checking that the common method of bottle neck aluminium foil leakproofness is manual inspection.Operator, be first by chemical product bottle bottle
Lid is unscrewed, and whether eye-observation aluminium foil is intact；With hand squeeze chemical product bottle, human eye observation its whether leak and dropping liquid.This people
The mode of work inspection makes labor intensity of workers big, and working efficiency is low.
For the sealing condition for detecting chemical product bottle aluminium foil, production efficiency is improved, chemical product bottle foil sealing is devised
Detection device and detection method realize chemical product bottle foil sealing to solve the problems such as labor intensity of workers is big, working efficiency is low
The automatic detection of property.
Summary of the invention
Goal of the invention: the present invention is directed to the actual demand of chemical product bottle foil sealing detection, provides a kind of chemical product
Bottle foil sealing detection device and detection method realize foil sealing detection in chemical product bottle.The present invention has rational design, behaviour
Facilitate, can be realized the reliable detection of more specification chemical product Aluminum Bottle foil leakproofness.
Technical solution: a kind of chemical product bottle foil sealing detection device, including linear mould group driving mechanism, platen and survey
Press mechanism；The platen is for being fixedly mounted linear mould group driving mechanism and pressure measuring mechanism；
The linear mould group driving mechanism is used to radially apply the chemical product bottle for completing foil sealing production in its circumference
With certain amount of compression；The linear mould group driving mechanism includes stepper motor, shaft coupling, ball-screw, mounting bracket, pushes away
Send plate and right guiding compression bar；The stepper motor is connected with shaft coupling, and stepper motor drives ball-screw to control right guiding pressure
Bar squeezes the certain displacement of tested chemical product bottle；The right guiding compression bar is mounted on pushing plate, and pushing plate is mounted on peace
It fills on bracket；
The pressure measuring mechanism is used to detect the counterforce values of chemical product bottle resistance to deformation；The pressure measuring mechanism includes
Compressed spring washer, compressed spring, pressure sensor, gusset piece, left guiding compression bar, linear bearing, limition orientation bar, support plate
With pressure sensor mounting plate；
Wherein, the compressed spring washer and compressed spring are mounted on limition orientation bar, in gusset piece and linear axis
Between holding；
The pressure sensor is mounted on pressure sensor mounting plate, for detecting the anti-of chemical product bottle resistance to deformation
The size of active force；
The gusset piece is mounted on limition orientation bar, and gusset piece has 2-3mm apart from pressure sensor, can reduce connection
Impact force between plate and pressure sensor extends pressure sensor service life；
Chemical product bottle to be detected is placed between the left guiding compression bar and right guiding compression bar；
The linear bearing is mounted in support plate and pressure sensor mounting plate；
The limition orientation bar is mounted in linear bearing, and the tail portion of limition orientation bar has position limiting structure and straight line
Bearing is kept in contact.
The detection method of the chemical product bottle foil sealing detection device realizes the detection of chemical product bottle foil sealing
Method includes the following steps:
(a), the chemical product bottle cap for completing foil sealing production is unscrewed；
(b), chemical product bottle is put among linear mould group driving mechanism and pressure measuring mechanism；
(c), right guiding compression bar squeezes tested chemical product bottle one under the driving of stepper motor in linear mould group driving mechanism
Set a distance, and keep certain time；
(d), pressure sensor measures the counterforce values of chemical product bottle resistance to deformation；
(e), according to the counterforce values of chemical product bottle resistance to deformation whether in threshold range, judge chemical product bottle aluminium foil
Leakproofness.
The utility model has the advantages that the present invention has rational design, easy to operate, the chemical product bottle foil sealing inspection that can reliably realize
It surveys, reduces labor intensity of workers, work efficiency is high.
Detailed description of the invention
Attached drawing described here is only used for task of explanation, and does not lie in and limit model disclosed by the invention in any way
It encloses.In addition, each component shape and proportional sizes etc. in figure are only schematically, to be used to help the understanding of the present invention, be not
The shape and proportional sizes of each component of the concrete restriction present invention.Those skilled in the art is under guidance of the invention, Ke Yigen
Various possible shapes and proportional sizes are selected to implement the present invention according to concrete condition.
Fig. 1 is chemical product bottle explosive view；
Fig. 2 is chemical product bottle overall structure diagram；
Fig. 3 is chemical product bottle foil sealing structural schematic diagram；
Fig. 4 is overall structure diagram of the invention.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, so that the technology of this field
Personnel can better understand advantages and features of the invention, to make apparent boundary to protection scope of the present invention
It is fixed.Embodiment described in the invention is only a part of the embodiment of the present invention, instead of all the embodiments, based on the present invention
In embodiment, those of ordinary skill in the art's every other implementation obtained without making creative work
Example, shall fall within the protection scope of the present invention.
Embodiment
In the present embodiment, Fig. 1 is chemical product bottle in state canned, before foil sealing, including bottle cap 01, aluminium-foil gasket 02
With body 03.Fig. 2 is the chemical product bottle completed after foil sealing production.Fig. 3 is the chemical product bottle foil sealing after twist-off closure
Schematic diagram.
As shown in figure 4, a kind of chemical product bottle foil sealing detection device, including linear mould group driving mechanism 1, platen 2,
Pressure measuring mechanism 3.The platen 2 is for being fixedly mounted linear mould group driving mechanism 1 and pressure measuring mechanism 3.
The linear mould group driving mechanism 1 is mounted on platen 2, for the chemical product for completing foil sealing production
Bottle, certain amount of compression is radially imposed in its circumference；Linear mould group driving mechanism 1 includes stepper motor 101, shaft coupling 102, rolling
Ballscrew 103, mounting bracket 104, pushing plate 105 and right guiding compression bar 106.The stepper motor 101 is connected with shaft coupling
102, stepper motor 101 drives ball-screw 103 to control right guiding compression bar 106 and squeezes the certain displacement of tested chemical product bottle.
The right guiding compression bar 106 is mounted on pushing plate 105, and pushing plate 105 is mounted in mounting bracket 104.
The pressure measuring mechanism 3 is mounted on platen 2, for detecting the counterforce values of chemical product bottle resistance to deformation.Institute
The pressure measuring mechanism 3 stated includes compressed spring washer 301, compressed spring 302, pressure sensor 303, gusset piece 304, left guiding pressure
Bar 305, linear bearing 306, limition orientation bar 307, support plate 308, pressure sensor mounting plate 309.Wherein, pressure sensor
303 are mounted on pressure sensor mounting plate 309, the size of the reaction force for detecting chemical product bottle resistance to deformation；Straight line
Bearing 306 is mounted on pressure sensor mounting plate 309 and support plate 308；Limition orientation bar 307 is mounted on linear bearing 306
In, there is 307 tail portion of limition orientation bar position limiting structure and linear bearing 306 to be kept in contact；Gusset piece 304 is mounted on limit and leads
To on bar 307, there is 2-3mm distance apart from pressure sensor 303, rushing between gusset piece 304 and pressure sensor 303 can be reduced
Power is hit, 303 service life of pressure sensor is extended；Compressed spring 302, compressed spring washer 301 are mounted on limition orientation bar 307
On, between gusset piece 304 and linear bearing 306.
The chemical product bottle foil sealing testing principle is as follows:
Certain amount of compression is radially imposed in its circumference by bottle cap unscrewing to the chemical product bottle for completing foil sealing production,
Air is extruded in bottle, if chemical product bottle foil sealing is good, the reaction force of chemical product bottle resistance to deformation can be greater than a certain
Critical value, defining this critical value is threshold value；If chemical product bottle foil sealing is bad, air is squeezed to have and let out in bottle
Out, the reaction force of chemical product bottle resistance to deformation can be less than this critical value, determine chemical product bottle foil sealing accordingly.
Chemical product bottle foil sealing detection device of the invention realizes that method for conducting leak test is as follows:
(a), the chemical product bottle cap 01 for completing foil sealing production is unscrewed；
(b), chemical product bottle is put among linear mould group driving mechanism 1 and pressure measuring mechanism 3；
(c), right guiding compression bar 106 squeezes tested daily use chemicals under the driving of stepper motor 101 in linear mould group driving mechanism 1
Product bottle certain distance, and keep certain time；
(d), pressure sensor 303 measures the counterforce values of chemical product bottle resistance to deformation；
(e), according to the counterforce values of chemical product bottle resistance to deformation whether in threshold range, judge chemical product bottle aluminium foil
Leakproofness.
The present invention has rational design, easy to operate, and the chemical product bottle foil sealing detection that can reliably realize reduces worker
Labor intensity, work efficiency is high.
A kind of chemical product bottle foil sealing detection device and detection method provided by the invention, are applicable not only to high density
The foil sealing of polyethylene (HDPE) chemical product bottle detects, and applies also for the foil sealing detection of various plastic soft bottles,
Specific implementation is not only only limited to these instructions.Under the premise of not departing from present inventive concept and method, any letter for making
Single modification or substitution, all should be in protection category of the invention.
Claims (2)
1. a kind of chemical product bottle foil sealing detection device, it is characterised in that: including linear mould group driving mechanism (1), platen
(2) and pressure measuring mechanism (3)；The platen (2) is for being fixedly mounted linear mould group driving mechanism (1) and pressure measuring mechanism (3)；
The linear mould group driving mechanism (1) is used to radially apply the chemical product bottle for completing foil sealing production in its circumference
With certain amount of compression；The linear mould group driving mechanism (1) includes stepper motor (101), shaft coupling (102), ball wire
Thick stick (103), mounting bracket (104), pushing plate (105) and right guiding compression bar (106)；The stepper motor (101) is connected with
Shaft coupling (102), stepper motor (101) drive ball-screw (103) to control right guiding compression bar (106) and squeeze tested chemical product bottle
Certain displacement；The right guiding compression bar (106) is mounted on pushing plate (105), and pushing plate (105) is mounted on installation branch
On frame (104)；
The pressure measuring mechanism (3) is used to detect the counterforce values of chemical product bottle resistance to deformation；Pressure measuring mechanism (3) packet
Include compressed spring washer (301), compressed spring (302), pressure sensor (303), gusset piece (304), left guiding compression bar
(305), linear bearing (306), limition orientation bar (307), support plate (308) and pressure sensor mounting plate (309)；
Wherein, the compressed spring washer (301) and compressed spring (302) are mounted on limition orientation bar (307), are being coupled
Between plate (304) and linear bearing (306)；
The pressure sensor (303) is mounted on pressure sensor mounting plate (309), is become for detecting chemical product bottle and resisting
The size of the reaction force of shape；
The gusset piece (304) is mounted on limition orientation bar (307), and gusset piece (304) has apart from pressure sensor (303)
2-3mm can reduce the impact force between gusset piece (304) and pressure sensor (303), extend pressure sensor (303) and use
Service life；
Chemical product bottle to be detected is placed between the left guiding compression bar (305) and right guiding compression bar (106)；
The linear bearing (306) is mounted in support plate (308) and pressure sensor mounting plate (309)；
The limition orientation bar (307) is mounted in linear bearing (306), and the tail portion of limition orientation bar (307) has limit
Structure and linear bearing (306) are kept in contact.
2. a kind of detection method of chemical product bottle foil sealing detection device according to claim 1, it is characterised in that:
Realize that chemical product bottle foil sealing detection method includes the following steps:
(a), the chemical product bottle cap (01) for completing foil sealing production is unscrewed；
(b), chemical product bottle is put into linear mould group driving mechanism (1) and pressure measuring mechanism (3) is intermediate；
(c), right guiding compression bar (106) squeezes tested day under the driving of stepper motor (101) in linear mould group driving mechanism (1)
Change product bottle certain distance, and keep certain time；
(d), pressure sensor (303) measures the counterforce values of chemical product bottle resistance to deformation；
(e), according to the counterforce values of chemical product bottle resistance to deformation whether in threshold range, judge chemical product bottle foil sealing
Property.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910721112.9A CN110530581A (en) | 2019-08-06 | 2019-08-06 | Chemical product bottle foil sealing detection device and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910721112.9A CN110530581A (en) | 2019-08-06 | 2019-08-06 | Chemical product bottle foil sealing detection device and detection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110530581A true CN110530581A (en) | 2019-12-03 |
Family
ID=68660469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910721112.9A Pending CN110530581A (en) | 2019-08-06 | 2019-08-06 | Chemical product bottle foil sealing detection device and detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110530581A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114252200A (en) * | 2021-12-13 | 2022-03-29 | 苏州康本新能源科技有限公司 | Apron gas tightness check out test set |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070056355A1 (en) * | 2005-09-09 | 2007-03-15 | Martin Lehmann | Methods for manufacturing unleaky closed containers and leak testing apparatus |
| CN101408469A (en) * | 2008-10-30 | 2009-04-15 | 四川大学 | Method and apparatus for detecting flexible bottle sealability |
| JP2012159365A (en) * | 2011-01-31 | 2012-08-23 | Yoshino Kogyosho Co Ltd | Cap sealing inspection method |
| CN204514562U (en) * | 2015-03-26 | 2015-07-29 | 四川新升塑胶实业有限公司 | A kind of packing plastic bottle leaks bottle pick-up unit |
| CN204535924U (en) * | 2015-03-23 | 2015-08-05 | 苏州浩克系统检测科技有限公司 | A kind of aluminium film encapsulation leak detecting device |
| CN204819547U (en) * | 2015-07-16 | 2015-12-02 | 上海挪亚检测认证有限公司 | A flexible mechanical hand for industrial robot |
| CN105738045A (en) * | 2014-12-12 | 2016-07-06 | 苏州浩克系统检测科技有限公司 | Aluminum membrane package leakage detection method |
| CN106289677A (en) * | 2016-08-09 | 2017-01-04 | 桐城运城制版有限公司 | A kind of device of quick detection sealing performance of soft packing bag |
| CN106353037A (en) * | 2016-08-23 | 2017-01-25 | 阎文 | Liquid plastic bottle leak detector for production line and detecting method thereof |
| CN108020265A (en) * | 2017-12-11 | 2018-05-11 | 淮南师范学院 | A kind of pressure test equipment with temperature measurement function |
| CN207964217U (en) * | 2017-12-30 | 2018-10-12 | 汕头市新青罐机有限公司 | A kind of aluminium film encapsulation tank body leakage detection apparatus |
| CN208283518U (en) * | 2018-06-22 | 2018-12-25 | 深圳市荣测捷科技有限公司 | A kind of jig functional test device for mainboard |
| CN208297556U (en) * | 2018-04-25 | 2018-12-28 | 长泰县志文电子产品经营部 | A kind of automatic detection fixture of power panel |
| CN208579885U (en) * | 2018-05-30 | 2019-03-05 | 天津朝花夕拾科技有限公司 | A kind of cosmetic package air-tightness detection device |
| CN109443636A (en) * | 2018-11-13 | 2019-03-08 | 浙江大学 | A kind of dynamic response evaluating apparatus of strain-type pressure testing system |
| CN208635989U (en) * | 2018-08-31 | 2019-03-22 | 四川新升塑胶实业有限公司 | A kind of plastic bottle package seal checker |
| CN208818387U (en) * | 2018-11-22 | 2019-05-03 | 青岛海汇德电气有限公司 | A kind of pressure-detecting device |
| CN109764947A (en) * | 2019-01-17 | 2019-05-17 | 广州市丹爵通讯科技有限公司 | A kind of organic waste weighing-appliance with Level tune function |
-
2019
- 2019-08-06 CN CN201910721112.9A patent/CN110530581A/en active Pending
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070056355A1 (en) * | 2005-09-09 | 2007-03-15 | Martin Lehmann | Methods for manufacturing unleaky closed containers and leak testing apparatus |
| CN101408469A (en) * | 2008-10-30 | 2009-04-15 | 四川大学 | Method and apparatus for detecting flexible bottle sealability |
| JP2012159365A (en) * | 2011-01-31 | 2012-08-23 | Yoshino Kogyosho Co Ltd | Cap sealing inspection method |
| CN105738045A (en) * | 2014-12-12 | 2016-07-06 | 苏州浩克系统检测科技有限公司 | Aluminum membrane package leakage detection method |
| CN204535924U (en) * | 2015-03-23 | 2015-08-05 | 苏州浩克系统检测科技有限公司 | A kind of aluminium film encapsulation leak detecting device |
| CN204514562U (en) * | 2015-03-26 | 2015-07-29 | 四川新升塑胶实业有限公司 | A kind of packing plastic bottle leaks bottle pick-up unit |
| CN204819547U (en) * | 2015-07-16 | 2015-12-02 | 上海挪亚检测认证有限公司 | A flexible mechanical hand for industrial robot |
| CN106289677A (en) * | 2016-08-09 | 2017-01-04 | 桐城运城制版有限公司 | A kind of device of quick detection sealing performance of soft packing bag |
| CN106353037A (en) * | 2016-08-23 | 2017-01-25 | 阎文 | Liquid plastic bottle leak detector for production line and detecting method thereof |
| CN108020265A (en) * | 2017-12-11 | 2018-05-11 | 淮南师范学院 | A kind of pressure test equipment with temperature measurement function |
| CN207964217U (en) * | 2017-12-30 | 2018-10-12 | 汕头市新青罐机有限公司 | A kind of aluminium film encapsulation tank body leakage detection apparatus |
| CN208297556U (en) * | 2018-04-25 | 2018-12-28 | 长泰县志文电子产品经营部 | A kind of automatic detection fixture of power panel |
| CN208579885U (en) * | 2018-05-30 | 2019-03-05 | 天津朝花夕拾科技有限公司 | A kind of cosmetic package air-tightness detection device |
| CN208283518U (en) * | 2018-06-22 | 2018-12-25 | 深圳市荣测捷科技有限公司 | A kind of jig functional test device for mainboard |
| CN208635989U (en) * | 2018-08-31 | 2019-03-22 | 四川新升塑胶实业有限公司 | A kind of plastic bottle package seal checker |
| CN109443636A (en) * | 2018-11-13 | 2019-03-08 | 浙江大学 | A kind of dynamic response evaluating apparatus of strain-type pressure testing system |
| CN208818387U (en) * | 2018-11-22 | 2019-05-03 | 青岛海汇德电气有限公司 | A kind of pressure-detecting device |
| CN109764947A (en) * | 2019-01-17 | 2019-05-17 | 广州市丹爵通讯科技有限公司 | A kind of organic waste weighing-appliance with Level tune function |
Non-Patent Citations (2)
| Title |
|---|
| 罗霄 等编著: "《仿生机械概论》", 31 January 2019, 北京理工大学出版社 * |
| 赵士龙 等: "基于红外成像技术的铝箔封口密封完整性检测研究", 《辽宁石油化工大学学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114252200A (en) * | 2021-12-13 | 2022-03-29 | 苏州康本新能源科技有限公司 | Apron gas tightness check out test set |
| CN114252200B (en) * | 2021-12-13 | 2024-01-16 | 苏州康本新能源科技有限公司 | Cover plate air tightness detection equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201051039Y (en) | Container leakage detection system | |
| CN110530581A (en) | Chemical product bottle foil sealing detection device and detection method | |
| CN103949577A (en) | Automatic chain cut-off machine | |
| CN102706752A (en) | On-line soft infusion bag heat-seal strength detection device and soft infusion bag production line | |
| CN110530580A (en) | Chemical product bottle foil sealing on-line checking production line | |
| CN208853292U (en) | A kind of mechanical equipment of fast automatic detecting packaging | |
| CN204514562U (en) | A kind of packing plastic bottle leaks bottle pick-up unit | |
| CN107515081A (en) | Lithium ion battery aluminum plastic film package quality fast positioning detection means | |
| CN204267925U (en) | A kind of airtight leak detection joint | |
| CN207351629U (en) | Lithium ion battery aluminum plastic film package quality fast positioning detection device | |
| CN202182712U (en) | Device for detecting water leaking hole in drive cover of starting motor | |
| CN202063302U (en) | Defective product rejecting mechanism | |
| CN108572050A (en) | A kind of urinal load leak check device | |
| CN205861332U (en) | A kind of safety valve of oil tank performance test machine | |
| CN205639113U (en) | Device that monitoring energy storage ware fluid leaked | |
| CN202836895U (en) | Sealing connecting rod airtightness testing device | |
| CN209069517U (en) | It is a kind of for detecting the device of ultrasonic weld seam air-tightness | |
| CN204085796U (en) | Water press testing machine | |
| CN204944776U (en) | A kind of automatic sealing tightness tester | |
| CN207199737U (en) | Packaging system for lithium battery Soft Roll filling machine | |
| CN219301882U (en) | Leak detection device for sealing injection product | |
| CN201819772U (en) | Columnar tank joint detecting device | |
| CN209794675U (en) | Die positioning hydraulic structure of isostatic pressing forming machine | |
| CN216051301U (en) | Stress corrosion testing device suitable for multi-shape sample | |
| CN206504837U (en) | A kind of clutch booster of automobile air-tightness detection device |
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 |