CN108543558A - A kind of cool rice conveying device of Rice enriched-Se processing - Google Patents

A kind of cool rice conveying device of Rice enriched-Se processing Download PDF

Info

Publication number
CN108543558A
CN108543558A CN201810417764.9A CN201810417764A CN108543558A CN 108543558 A CN108543558 A CN 108543558A CN 201810417764 A CN201810417764 A CN 201810417764A CN 108543558 A CN108543558 A CN 108543558A
Authority
CN
China
Prior art keywords
fixedly connected
rice
cool rice
cool
enriched
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
Application number
CN201810417764.9A
Other languages
Chinese (zh)
Inventor
汪有德
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shitai County Xintian Oils Co Ltd
Original Assignee
Shitai County Xintian Oils Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shitai County Xintian Oils Co Ltd filed Critical Shitai County Xintian Oils Co Ltd
Priority to CN201810417764.9A priority Critical patent/CN108543558A/en
Publication of CN108543558A publication Critical patent/CN108543558A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02BPREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE
    • B02B7/00Auxiliary devices

Landscapes

  • Cereal-Derived Products (AREA)

Abstract

The invention discloses a kind of Rice enriched-Ses to process cool rice conveying device, including bottom plate, the top of the bottom plate is fixedly connected with cool rice bin by support column, and the back side of cool rice bin inner wall is fixedly connected with first motor, the output shaft of first motor is rotatably connected to rotating disc, and the surface of rotating disc is fixedly connected with shovel meter Dou by fixed link, and the both sides of cool rice bin inner wall slidably connect sliding shoe, and the side of sliding shoe is rotatably connected to stock guide, the side of stock guide bottom is rotatably connected to pull rod.The Rice enriched-Se processes cool rice conveying device, it can scoop up the Rice enriched-Se inside cool rice bin is reciprocal, by being used cooperatively for venthole, Rice enriched-Se quickly cooled down, improve cooling effect, the practicability for improving device adjusts the angle of inclination of stock guide, controls the spacing between two stock guides, to control its discharging speed, its discharging speed can be adjusted according to the temperature of Rice enriched-Se, keep Rice enriched-Se completely cooling.

Description

A kind of cool rice conveying device of Rice enriched-Se processing
Technical field
The present invention relates to a kind of Rice enriched-Se process equipment, specifically a kind of Rice enriched-Se processes cool rice conveying device.
Background technology
Selenium-rich rice is by the selenium-supply when planting rice, to grow the rice for being rich in selenium.Belong to functional Agricultural product are the food rich in selenium, have a higher nutritive value, the production of selenium-rich rice, there are two types of mode, one kind be exactly Rice Heading uniformly sprays selenium-rich increasing agent with sprayer to the pustulation period, in the morning and evening of fair weather on blade face, then by life Object converts, and inorganic selenium is converted into Organic Selenium, and stores in rice, and in order to absorption of human body, another is exactly local soil Earth selenium content is abundant, and the rice produced contains selenium naturally, is in the Liuzhi Special Region in Guizhou Province western part, be China it is famous three greatly One of natural selenium-rich area, belongs to north subtropical monsoon climate here, and advantageous natural advantage is advantageous to natural selenium-rich The production of rice.
Existing Rice enriched-Se processes cool rice conveying device, when in use, can not be complete with it according to the temperature of Rice enriched-Se The cooling time determines its discharging speed, reduces its cooling effect, influences the following process of Rice enriched-Se, and can not adjust richness The height of selenium rice discharging is not easy to carry out entrucking processing to Rice enriched-Se, reduces the practicability of device.
Invention content
The purpose of the present invention is to provide a kind of Rice enriched-Ses to process cool rice conveying device, to solve in above-mentioned background technology The problem of proposition.
To achieve the above object, the present invention provides the following technical solutions:
A kind of Rice enriched-Se processing cool rice conveying device, including bottom plate, the top of the bottom plate is fixedly connected with by support column Cool rice bin, and the back side of cool rice bin inner wall is fixedly connected with first motor, the output shaft of the first motor is rotatably connected to Moving plate, and the surface of rotating disc is fixedly connected with shovel meter Dou by fixed link, the both sides of the cool rice bin inner wall are slidably connected There is sliding shoe, and the side of sliding shoe is rotatably connected to stock guide, the side of the stock guide bottom is rotatably connected to pull rod, institute One end of pull rod is stated through cool rice bin and extends to the outside of cool rice bin, the pull rod is located at one end outside cool rice bin and fixes company It is connected to pull handle, the bottom of the cool rice bin both sides is fixedly connected with the gripping mechanism being used cooperatively with pull rod, the bottom plate bottom The both sides in portion are fixedly connected with support leg, and the side of support leg is fixedly connected with the second motor, the output of second motor Axis is fixedly connected with threaded rod, and the thread surface of threaded rod is connected with thread bush, the top of the thread bush through bottom plate and The top of bottom plate is extended to, the top slide of the thread bush is connected with support plate, and the left side at the top of the bottom plate is fixedly connected There is third motor, and the output shaft of third motor is fixedly connected with the first belt pulley, the surface of first belt pulley passes through belt It is sequentially connected with the second belt pulley, and the surface of the second belt pulley is fixedly connected with driving gear, the axle center of the driving gear Place is rotatablely connected by the top of the first supporting rack and bottom plate, and the surface of driving gear is sequentially connected with transmission by conveyer belt Gear passes through the top of the second supporting rack and support plate at the axle center of the transmission gear and is rotatablely connected.
As a further solution of the present invention:The gripping mechanism includes outline border, the side of the outline border and cool rice bin Side is fixedly connected, and the bottom of the outline border inner wall is fixedly connected with sliding panel, the both sides difference of the sliding panel by spring It is slidably connected with the both sides of outline border inner wall, kelly is fixedly connected at the top of the sliding panel, the top of the kelly is through outer The surface of frame and the outside for extending to outline border, the kelly is fixedly connected with mobile bar, and outline border is run through in one end of the mobile bar And extend to the outside of outline border.
As further scheme of the invention:The side of the outline border offers the movement being used cooperatively with mobile bar Slot.
As further scheme of the invention:The top of the bottom plate is rotatably connected to baffle by the first rotating bar, And the right side of baffle surface at the top of the second rotating bar and steadying plate by being fixedly connected.
As further scheme of the invention:The top of the cool rice bin, which is run through, feed hopper.
As further scheme of the invention:The both sides of the cool rice bin offer venthole.
As further scheme of the invention:The bottom of the cool rice bin, which is run through, discharge bucket.
Compared with prior art, the beneficial effects of the invention are as follows:
1, being used cooperatively by first motor, rotating disc, fixed link and shovel meter Dou, can be past by the Rice enriched-Se inside cool rice bin Multiple scoops up, and by being used cooperatively for venthole, is quickly cooled down to Rice enriched-Se, improves cooling effect, improve dress The practicability set.
2, being used cooperatively by sliding shoe, stock guide, pull rod, pull handle and gripping mechanism can drive stock guide to move, The angle of inclination of stock guide is adjusted, the spacing controlled between two stock guides can be according to Rice enriched-Se to control its discharging speed Temperature, adjust its discharging speed, keep Rice enriched-Se completely cooling.
3, being used cooperatively by the second motor, threaded rod, thread bush and support plate can adjust the height of transmission gear Degree, to adjust its discharge height, convenient for carrying out entrucking processing to Rice enriched-Se.
4, being used cooperatively by the first rotating bar, baffle and the second rotating bar, can prevent Rice enriched-Se from conveyer belt Leak down, prevents from causing unnecessary waste.
Description of the drawings
Fig. 1 is the structural schematic diagram that a kind of Rice enriched-Se processes cool rice conveying device.
Fig. 2 is that a kind of Rice enriched-Se processes the partial enlarged view in Fig. 1 in cool rice conveying device at A.
Fig. 3 is the structural schematic diagram that a kind of Rice enriched-Se processes gripping mechanism in cool rice conveying device.
In figure:The cool rice bin of 1- bottom plates, 2-, 3- first motors, 4- rotating discs, 5- shovels meter Dou, 6- fixed link, 7- sliding shoes, 8- stock guides, 9- pull rods, 10- pull handles, 11- gripping mechanisms, 111- outline borders, 112- springs, 113- sliding panels, 114- kellies, 115- mobile bars, the second motors of 12-, 13- threaded rods, 14- thread bush, 15- support plates, 16- thirds motor, the first belts of 17- Wheel, the second belt pulleys of 18-, 19- driving gears, the first supporting racks of 20-, 21- conveyer belts, 22- transmission gears, 23- second support Frame, the first rotating bars of 24-, 25- baffles, the second rotating bars of 26-, 27- feed hoppers, 28- ventholes, 29- discharge buckets, 30- supports Leg.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig.1~3, in the embodiment of the present invention, a kind of Rice enriched-Se processing cool rice conveying device, including bottom plate 1, bottom The top of plate 1 is fixedly connected with cool rice bin 2 by support column, and the back side of 2 inner wall of cool rice bin is fixedly connected with first motor 3, The output shaft of first motor 3 is rotatably connected to rotating disc 4, and the surface of rotating disc 4 is fixedly connected with shovel meter Dou by fixed link 6 5, the both sides of 2 inner wall of cool rice bin slidably connect sliding shoe 7, and the side of sliding shoe 7 is rotatably connected to stock guide 8, guide The side of 8 bottom of plate is rotatably connected to pull rod 9, and one end of pull rod 9 runs through cool rice bin 2 and extends to the outside of cool rice bin 2, pull rod 9 one end for being located at outside cool rice bin 2 are fixedly connected with pull handle 10, and the bottom of 2 both sides of cool rice bin has been fixedly connected with matches with pull rod 9 The gripping mechanism 11 used is closed, the surface of pull rod 9 offers the card slot being used cooperatively with kelly 114, and the both sides of 1 bottom of bottom plate are equal It is fixedly connected with support leg 30, and the side of support leg 30 is fixedly connected with the second motor 12, the second motor 12 is phase asynchronous friendship The output shaft of galvanic electricity machine, the second motor 12 is fixedly connected with threaded rod 13, and the thread surface of threaded rod 13 is connected with thread bush 14, the top of thread bush 14 runs through bottom plate 1 and extends to the top of bottom plate 1, and the surface of bottom plate 1 offers and thread bush 14 coordinates The top slide of the opening used, thread bush 14 is connected with support plate 15, and the top of thread bush 14 can be at the bottom of support plate 15 Portion is slided and rotation, and the left side at 1 top of bottom plate is fixedly connected with third motor 16, and the output shaft of third motor 16 is fixedly connected The surface of first belt pulley 17, the first belt pulley 17 is connected with the second belt pulley 18, and the second belt pulley 18 by belt transmission Surface be fixedly connected with driving gear 19, turned by the top of the first supporting rack 20 and bottom plate 1 at the axle center of driving gear 19 Dynamic connection, and the surface of driving gear 19 is sequentially connected with transmission gear 22 by conveyer belt 21, at the axle center of transmission gear 22 It is rotatablely connected by the second supporting rack 23 and the top of support plate 15, gripping mechanism 11 includes outline border 111, the side of outline border 111 It is fixedly connected with the side of cool rice bin 2, the bottom of 111 inner wall of outline border is fixedly connected with sliding panel 113 by spring 112, sliding Both sides of the both sides of plate 113 respectively with 111 inner wall of outline border are slidably connected, and the top of sliding panel 113 is fixedly connected with kelly 114, The top of kelly 114 runs through outline border 111 and extends to the outside of outline border 111, and the surface of kelly 114 is fixedly connected with mobile bar 115, one end of mobile bar 115 runs through outline border 111 and extends to the outside of outline border 111, and the side of outline border 111 offers and movement The top of the shifting chute that bar 115 is used cooperatively, bottom plate 1 is rotatably connected to baffle 25, and 25 table of baffle by the first rotating bar 24 The right side in face is fixedly connected by the second rotating bar 26 with the top of steadying plate 15, and the top of cool rice bin 2, which is run through, feed hopper 27, The both sides of cool rice bin 2 offer venthole 28, and the quantity of venthole 28 is four, and is corresponded to two-by-two, and the bottom of cool rice bin 2 is passed through It is installed with discharge bucket 29.
The present invention operation principle be:Mobile bar 115 is pressed, makes one end of mobile bar 115 far from the card opened up on pull rod 9 Slot pulls pull rod 9, pull rod 9 that stock guide 8 is driven to move, adjusts the distance between two stock guides 8, control it by pull handle 10 Discharging speed, mobile bar 115 is unclamped after adjusting to be made one end of mobile bar 115 be located on pull rod 9 and is opened by the elastic force of spring 112 If card slot in, pull rod 9 is fixed, Rice enriched-Se is poured by feed hopper 27, the work of first motor 3 drives 4 turns of rotating disc Dynamic, rotating disc 4 drives shovel rice bucket 5 to rotate by fixed link 6, and Rice enriched-Se scooping up repeatedly quickly cools down it, can According to the temperature of Rice enriched-Se, its discharging speed is adjusted, while being cooled down, discharging is carried out and improves work efficiency, be convenient for It is widely popularized, Rice enriched-Se after cooling is fallen by discharge bucket 29 on conveyer belt 21, the rotation of the second motor 12,12 band of the second motor Dynamic threaded rod 13 rotates, and threaded rod 13 drives support plate 15 to move by thread bush 14, and support plate 15 passes through the second supporting rack 23 Band nutating gear 22 moves, and adjusts its height, and in order to carry out entrucking processing to Rice enriched-Se, the work of third motor 16 drives the One belt pulley 17 rotates, and the first belt pulley 17 drives the second belt pulley 18 to rotate by belt, and the second belt pulley 18 drives actively Gear 19 rotates, and driving gear 19 is rotated by conveyer belt 21 with nutating gear 22, is carried out to Rice enriched-Se by conveyer belt 21 Conveying.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power Profit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiment being appreciated that.

Claims (7)

1. a kind of Rice enriched-Se processing cool rice conveying device, including bottom plate(1), which is characterized in that the bottom plate(1)Top it is logical It crosses support column and is fixedly connected with cool rice bin(2), and cool rice bin(2)The back side of inner wall is fixedly connected with first motor(3), described One motor(3)Output shaft be rotatably connected to rotating disc(4), and rotating disc(4)Surface pass through fixed link(6)It is fixedly connected with Shovel meter Dou(5), the cool rice bin(2)The both sides of inner wall slidably connect sliding shoe(7), and sliding shoe(7)Side rotation It is connected with stock guide(8), the stock guide(8)The side of bottom is rotatably connected to pull rod(9), the pull rod(9)One end pass through Wear cool rice bin(2)And extend to cool rice bin(2)Outside, the pull rod(9)Positioned at cool rice bin(2)External one end is fixedly connected There is pull handle(10), the cool rice bin(2)The bottom of both sides has been fixedly connected with and pull rod(9)The gripping mechanism being used cooperatively (11), the bottom plate(1)The both sides of bottom are fixedly connected with support leg(30), and support leg(30)Side be fixedly connected with Two motors(12), second motor(12)Output shaft be fixedly connected with threaded rod(13), and threaded rod(13)Surface spiral shell Line is connected with thread bush(14), the thread bush(14)Top run through bottom plate(1)And extend to bottom plate(1)Top, it is described Thread bush(14)Top slide be connected with support plate(15), the bottom plate(1)Third motor is fixedly connected on the left of top (16), and third motor(16)Output shaft be fixedly connected with the first belt pulley(17), first belt pulley(17)Surface it is logical It crosses belt transmission and is connected with the second belt pulley(18), and the second belt pulley(18)Surface be fixedly connected with driving gear(19), The driving gear(19)Axle center at pass through the first supporting rack(20)With bottom plate(1)Top rotation connection, and driving gear (19)Surface pass through conveyer belt(21)It is sequentially connected with transmission gear(22), the transmission gear(22)Axle center at pass through Two supporting racks(23)With support plate(15)Top rotation connection.
2. a kind of Rice enriched-Se according to claim 1 processes cool rice conveying device, which is characterized in that the gripping mechanism (11)Including outline border(111), the outline border(111)Side and cool rice bin(2)Side be fixedly connected, the outline border(111) The bottom of inner wall passes through spring(112)It is fixedly connected with sliding panel(113), the sliding panel(113)Both sides respectively with outline border (111)The both sides of inner wall are slidably connected, the sliding panel(113)Top be fixedly connected with kelly(114), the kelly (114)Top run through outline border(111)And extend to outline border(111)Outside, the kelly(114)Surface be fixedly connected with Mobile bar(115), the mobile bar(115)One end run through outline border(111)And extend to outline border(111)Outside.
3. a kind of Rice enriched-Se according to claim 2 processes cool rice conveying device, which is characterized in that the outline border (111)Side offer and mobile bar(115)The shifting chute being used cooperatively.
4. a kind of Rice enriched-Se according to claim 1 processes cool rice conveying device, which is characterized in that the bottom plate(1) Top pass through the first rotating bar(24)It is rotatably connected to baffle(25), and baffle(25)The right side on surface passes through the second rotating bar (26)With steadying plate(15)Top be fixedly connected.
5. a kind of Rice enriched-Se according to claim 1 processes cool rice conveying device, which is characterized in that the cool rice bin (2)Top through there is feed hopper(27).
6. a kind of Rice enriched-Se according to claim 1 processes cool rice conveying device, which is characterized in that the cool rice bin (2)Both sides offer venthole(28).
7. a kind of Rice enriched-Se according to claim 1 processes cool rice conveying device, which is characterized in that the cool rice bin (2)Bottom through there is discharge bucket(29).
CN201810417764.9A 2018-05-04 2018-05-04 A kind of cool rice conveying device of Rice enriched-Se processing Pending CN108543558A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810417764.9A CN108543558A (en) 2018-05-04 2018-05-04 A kind of cool rice conveying device of Rice enriched-Se processing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810417764.9A CN108543558A (en) 2018-05-04 2018-05-04 A kind of cool rice conveying device of Rice enriched-Se processing

Publications (1)

Publication Number Publication Date
CN108543558A true CN108543558A (en) 2018-09-18

Family

ID=63513167

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810417764.9A Pending CN108543558A (en) 2018-05-04 2018-05-04 A kind of cool rice conveying device of Rice enriched-Se processing

Country Status (1)

Country Link
CN (1) CN108543558A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1183947A (en) * 1966-07-07 1970-03-11 Rockwell Mfg Co Power Tool for Surface Finishing Workpieces
CN203806517U (en) * 2014-04-18 2014-09-03 戴杰 Packaging box conveying device
CN205471125U (en) * 2016-03-11 2016-08-17 杭州其门堂蔬菜食品有限公司 Turnip conveyer
CN205613344U (en) * 2016-04-19 2016-10-05 四川亨利德新型建筑材料有限公司 A raw materials mixes system of disposition all for architecture keramics production
CN107166853A (en) * 2017-07-07 2017-09-15 崔亮 A kind of domestic refrigerator defrosting water receiving tank
CN107469893A (en) * 2017-09-11 2017-12-15 贵州省榕江县粒粒香米业有限公司 A kind of cool rice conveying device of rice processing
CN206997427U (en) * 2017-07-11 2018-02-13 泰州亚泰金属有限公司 A kind of aluminum products bending-forming apparatus
CN207258644U (en) * 2017-09-13 2018-04-20 湖北维顿生物科技有限公司 A kind of fats and oils processing conveying device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1183947A (en) * 1966-07-07 1970-03-11 Rockwell Mfg Co Power Tool for Surface Finishing Workpieces
CN203806517U (en) * 2014-04-18 2014-09-03 戴杰 Packaging box conveying device
CN205471125U (en) * 2016-03-11 2016-08-17 杭州其门堂蔬菜食品有限公司 Turnip conveyer
CN205613344U (en) * 2016-04-19 2016-10-05 四川亨利德新型建筑材料有限公司 A raw materials mixes system of disposition all for architecture keramics production
CN107166853A (en) * 2017-07-07 2017-09-15 崔亮 A kind of domestic refrigerator defrosting water receiving tank
CN206997427U (en) * 2017-07-11 2018-02-13 泰州亚泰金属有限公司 A kind of aluminum products bending-forming apparatus
CN107469893A (en) * 2017-09-11 2017-12-15 贵州省榕江县粒粒香米业有限公司 A kind of cool rice conveying device of rice processing
CN207258644U (en) * 2017-09-13 2018-04-20 湖北维顿生物科技有限公司 A kind of fats and oils processing conveying device

Similar Documents

Publication Publication Date Title
CN208990765U (en) A kind of organic fertilizer production pelletizer
CN104687212B (en) Gorgon fruit rushes seed peeling machine
CN109952841B (en) Potato planting machine
CN207519105U (en) A kind of agricultural planting digging apparatus easy to use
CN208661223U (en) A kind of cool rice conveying device of Rice enriched-Se processing
CN207235427U (en) New agricultural fertilizer apparatus
CN108543558A (en) A kind of cool rice conveying device of Rice enriched-Se processing
CN108371898A (en) A kind of Rice enriched-Se processing Double shaft stirring device
CN108514001A (en) A kind of small-sized bun stuffing machine
CN206276626U (en) Eccentric wheel sorter
CN206227591U (en) A kind of adjustable automation is without filling glutinous rice cake machine
CN207683530U (en) A kind of greenhouse seedling transfer device
CN207040734U (en) A kind of tealeaves stem cutting machine
CN216392008U (en) Vegetable planting uses novel fertilizer injection unit
CN108915024A (en) A kind of intelligentized rainwater collection utilization unit
CN107876860A (en) A kind of cut-out equipment based on same size convenient use
CN206913238U (en) A kind of Lemon fruit cutting machine
CN209300251U (en) Round instant noodles production definition device
CN109200977A (en) One kind, which has, pulverizes stirring chemical reaction kettle
CN209361818U (en) A kind of tennis service picks up the storage ball machine structure of ball machine
CN209633226U (en) A kind of wood furniture production and processing cleaning plant of sawdust
CN208891570U (en) A kind of small-sized bun stuffing machine
CN207544270U (en) A kind of Automatic Conveying machine that Rice & peanut milk technique is prepared for rice
CN110495292A (en) A kind of fertilizer apparatus for the adjustable fertilising spacing that farmland uses
CN111642214B (en) Fertilizer sprinkler for rice planting

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