CN108188488A - Plate face flowing water processing unit (plant) - Google Patents
Plate face flowing water processing unit (plant) Download PDFInfo
- Publication number
- CN108188488A CN108188488A CN201810192968.7A CN201810192968A CN108188488A CN 108188488 A CN108188488 A CN 108188488A CN 201810192968 A CN201810192968 A CN 201810192968A CN 108188488 A CN108188488 A CN 108188488A
- Authority
- CN
- China
- Prior art keywords
- cutter
- carrier bar
- plate face
- plate
- flowing water
- 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
- 238000012545 processing Methods 0.000 title claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 238000005520 cutting process Methods 0.000 claims abstract description 57
- 230000007423 decrease Effects 0.000 claims abstract description 6
- 230000033001 locomotion Effects 0.000 claims description 8
- 238000013461 design Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 5
- 238000003801 milling Methods 0.000 description 5
- 238000003754 machining Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 241000276425 Xiphophorus maculatus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D79/00—Methods, machines, or devices not covered elsewhere, for working metal by removal of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
- B23Q7/03—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of endless chain conveyors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The present invention provides a kind of plate face flowing water processing unit (plant), it includes sending module, cutting module, and the delivery module includes the carrier bar being assemblied on supporting rack, and the carrier bar is connected by sprocket wheel with drive mechanism, the carrier bar is wrapped on sprocket wheel, and the carrier bar lower part on upper strata is equipped with support plate；Push plate is fixed on the outer surface of the carrier bar；The packaged top assigned in the carrier bar of the cutting mould, the cutting module include the rotating roller for being parallel to the sprocket wheel axis, and there are two with upper cutter for fixing assembling in the rotating roller；The plate face flowing water processing unit (plant) be it is a kind of plate face can be cut by the multiple cutters being distributed on roller, plate face is made to have the function that entire plate face processing in multiple cutting；The flowing water processing of multiple plate faces can be realized using the device simultaneously, plate face processing efficiency is greatly improved, decreases the workload of user, be conducive to save the device of production cost.
Description
Technical field
The present invention relates to plate face manufacture fields, are to be related to a kind of plate face processing unit (plant) particularly.
Background technology
Plate face processing is to carry out milling to the plate face of workpiece by lathe, so as to make up to the mistake of required thickness
Journey；Existing plate face process operation, is mainly processed by milling machine or planer；And existing milling machine or planer are carrying out
Plate face process when, need to be processed after plate clamping is fixed on processing platform, machine after need by plate face again from
It is transported after processing platform dismounting, whole process is complex, while when every machine is processed every time may only process one
Plate face, efficiency are low.Plate face processing traditional simultaneously, the processing of especially larger plate face, planer or milling machine must be in plate faces
Carry out multiple machining, user needs to pre-set machining path, in process milling cutter can move back and forth into
Row processing, which further increases the workloads of user, and not only whole efficiency is low, but also the labor intensity of worker is big.
Invention content
In view of the above-mentioned problems, the purpose of the present invention is to provide a kind of plate face flowing water processing unit (plant), it can be by being distributed in
Multiple cutters on roller cut plate face, and plate face is made to have the function that entire plate face processing in multiple cutting；It adopts simultaneously
The flowing water that can realize multiple plate faces with the device is processed, and is greatly improved plate face processing efficiency, is decreased user's
Workload is conducive to save production cost.
The technical proposal for solving the technical problem of the invention is：The plate face flowing water processing unit (plant), it includes transmission mould
Block, cutting module, the delivery module include the carrier bar being assemblied on supporting rack, and the carrier bar passes through sprocket wheel and drive mechanism phase
Even, the carrier bar is wrapped on sprocket wheel, forms both sides up and down, the carrier bar lower part on upper strata is equipped with support plate；Outside the carrier bar
Push plate is fixed on surface；Plate to be processed is placed on the front of the push plate, and the cutting mould is packaged to be assigned in the carrier bar
Top, it is described cutting module include the rotating roller for being parallel to the sprocket wheel axis, the rotating roller is connected with drive mechanism,
Fixing assembling has angle, the forepart of the cutter there are two with upper cutter in the rotating roller between two adjacent cutters
Be machined with blade, the blade of the cutter to when the rotating roller is followed to rotate, blade is cut into cutter groove on the plate,
The cutter groove edge that adjacent cutter is cut in same rotating roller overlaps, i.e., the width of the two adjacent cutter grooves be more than or
The distance between equal to two cutter grooves.
Preferably, the cutter is plate, the forepart of the cutter is designed with inclined surface, on the cutter is lopsided
Portion is designed with the cutter head being fixedly connected, and blade is machined on the cutter head.
Preferably, the width of the cutter head is more than the width of the cutter, edge between the cutter that is connected in same rotating roller
Rotatable roll shaft to distance be 0.
Preferably, all cutting modules on the carrier bar top use identical size, along in carrier bar direction of advance
Conventional roll in the cutting module highly continuously decreases.
Preferably, the carrier bar upper level transmission of the delivery module, the top of carrier bar is equipped with along its direction of advance
The cutting module more than two, along carrier bar direction of advance arrange described its rotary motion of cutting module when blade reach
Bottom continuously decreases.
Preferably, the cutter in the cutting module is divided into symmetrical two groups, the blade described in every group on cutter
Along the cutting module helical arrangement.
The beneficial effects of the present invention are：When in use, user manually will be to be processed for the plate face flowing water processing unit (plant)
Plate is placed on the carrier bar of the conveyor module, blade rotary motion under the drive of the rotating roller of cutter, the chain
The top of plate moves forwards under the drive of drive mechanism, and the push plate being fixed in this way on the carrier bar pushes workpiece to be cut to described
Cut the direction movement of module；When workpiece is moved to the lower section of the cutting module, the blade on the cutter of rotation is to plate
Upper surface is cut, and as plate follows the continuous advance of carrier bar, the cutter for cutting module can be completed to add to entire plate face
Work.
Due to having multiple cutters in each rotating roller, adjacent cutter is cut in same rotating roller cutter groove side
Along overlapping, cutting module described in this way, which can cut entire plate face, does not just have dead angle.And adjacent cutter it
Between have angle, in this way when the cutting module is processed, will not be worked at the same time between adjacent cutter, each time point only
There are one or a small number of structure cutter carry out cutwork, can prevent stress during cutting excessive in this way.Simultaneously in cutting
In the process, plate moves along a straight line on the carrier bar of transmission module always, and whole process is not paused, in the mistake for carrying out plate face processing
Cheng Zhong, does not need to multiple clamping dismounting, and the forepart processing apparatus and subsequent process equipment of plate processing can directly be set
It counts on delivery module top, substantially increases the efficiency of production in this way.
Description of the drawings
Fig. 1 is plate face flowing water processing unit (plant) front view of the present invention.
Fig. 2 is the front view of plate face flowing water processing unit (plant) another kind embodiment of the present invention.
Fig. 3 is the vertical view of plate face flowing water processing unit (plant) of the present invention.
Fig. 4 is the partial enlarged view at A in Fig. 1.
Fig. 5 is the partial enlarged view at B in Fig. 3.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and examples：
As shown in Figure 1, Figure 2, in Fig. 3, Fig. 4 shown in embodiment, which is that one kind can be by being distributed in
Multiple cutters 22 on roller cut plate face, and plate face is made to have the function that entire plate face processing in multiple cutting；Simultaneously
The flowing water that can realize multiple plate faces using the device is processed, and is greatly improved plate face processing efficiency, is decreased user
Workload, be conducive to save production cost device.It includes delivery module 1, cutting module 2, and the delivery module 1 includes
The carrier bar 11 being assemblied on supporting rack, the carrier bar 11 are connected by sprocket wheel 12 with drive mechanism, and the carrier bar 11 is wrapped in chain
On wheel 12, both sides up and down are formed, 11 lower part of carrier bar on upper strata is equipped with support plate 13；It is fixed on the outer surface of the carrier bar 11
Push plate 14；Plate to be processed is placed on the front of the push plate 14, and the push plate 14 follows carrier bar 11 to move, while pushes institute
Plate linear motion is stated, the cutting module 2 is assemblied in the top of the carrier bar 11, and the cutting module 2 includes being parallel to
The rotating roller 21 of 12 axis of sprocket wheel, the rotating roller 21 are connected with drive mechanism, and rotation can be driven by drive mechanism
Roller 21 is done from fixing assembling in axis rotary motion, the rotating roller 21 there are two with upper cutter 22, two adjacent cutters 22 it
Between there is angle, the angle of angle is specifically determined according to the cutter 22 used, its usual angle not less than 5 °, the cutter 22
Forepart is machined with blade, and the blade of the cutter 22 is to when the rotating roller 21 is followed to rotate, blade is cut on the plate
Cut out cutter groove, the cutter groove edge that adjacent cutter 22 is cut in same rotating roller 21 overlaps, i.e., the two adjacent knives
The width of slot is greater than or equal to the distance between two cutter grooves, and cutting module 2 described in this way, can be to plate face in machining
Whole cuttings are carried out, without dead angle.
When in use, plate to be processed is placed on the conveyor module to the plate face flowing water processing unit (plant) by user manually
Carrier bar 11 on, blade rotary motion under the drive of the rotating roller 21 of cutter 22, the top of the carrier bar 11 is being driven
It is moved forwards under the drive of structure, the push plate 14 being fixed in this way on the carrier bar 11 pushes workpiece to the cutting module 2
It moves in direction；When workpiece is moved to the lower section of the cutting module 2, blade on the cutter 22 of rotation is to the upper surface of plate
It is cut, as plate follows the continuous advance of carrier bar 11, the cutter 22 for cutting module 2 can be completed to add to entire plate face
Work.
Due to having multiple cutters 22 in each rotating roller 21, adjacent cutter 22 is cut in same rotating roller 21
Cutter groove edge overlap, in this way it is described cutting module 2 can to entire plate face cut just do not have dead angle.It is and adjacent
Cutter 22 between have angle, in this way when the cutting module 2 is processed, between adjacent cutter 22 will not simultaneously work
Make, there are one each time points or a small number of structure cutters 22 carry out cutwork, can prevent stress during cutting in this way
It is excessive.Simultaneously during cutting, plate moves along a straight line on the carrier bar of transmission module 11 always, and whole process is not stopped
, during plate face processing is carried out, do not need to multiple clamping dismounting, the forepart processing apparatus of plate processing and rear portion
Processing apparatus can directly design the efficiency on 1 top of delivery module, substantially increasing production in this way.
As shown in figure 4, the cutter 22 is plate, the forepart of the cutter 22 is designed with inclined surface, and the cutter 22 inclines
The upper design of bevel edge has the cutter head 221 being fixedly connected, and blade is machined on the cutter head 221.Its role is to：The blade
Positioned at the forepart of the cutter 22 of plate, its stress in this way is more reasonable, and blade edge position can bear bigger in cutting
Cutting force, while the design of plate cutter 22 easily facilitates cutter 22 and assembling is arranged in the rotating roller 21.And the cutter head
221 design is so that greatly reducing for the high quality steel alloy that entire cutter 22 uses, can effectively reduce cost in this way.
As shown in figure 5, the width of the cutter head 221 is more than the width of the cutter 22, it is connected in same rotating roller 21 and cuts
Along the axial distance of rotating roller 21 it is 0 between knife 22.Its role is to：Can effectively it ensure on the adjacent cutter 22 in this way
The cutter groove that the knife edge part of cutter head 221 is cut on plate overlaps.When the cutter 22 is using platy structure so that institute
The volume for stating cutter head 221 greatly reduces the price for simultaneously, reducing each cutter 22, in this way when the cutter head 221 of cutter 22 occurs
During damage, replace and maintenance cost is lower.
As shown in Figure 1, all cutting modules 2 on 11 top of carrier bar use identical size, along 11 side of advance of carrier bar
Conventional roll in the upward cutting module 2 highly continuously decreases.Its role is to：When cutting module 2 uses identical ruler
It when very little, is easily changed when being damaged, while produces assembling also enhanced convenience, be not in mixed phenomenon, it can be primary
Other elements such as the cutter 22 of more same specifications are produced, reduce production cost.
As shown in Fig. 2, another embodiment of the present invention, 11 upper level of the carrier bar transmission of the delivery module 1, carrier bar
11 top is equipped with the cutting module 2 more than two along its direction of advance, described in the arrangement of 11 direction of advance of carrier bar
The bottom that blade reaches when cutting its rotary motion of module 2 continuously decreases.That is the depth of the cutting module 2 cutting becomes larger.This
The design of kind of hierarchic structure so that when the plate passes through from different 2 lower parts of cutting module, cutting that can be successively, in this way
When the delivery module 1 is to plate progressive feeding, it is possible to which a step completes multiple working angles, entire working angles flowing water
Operation, process are not paused, production efficiency higher.1 top of delivery module has used three cuttings altogether in the present embodiment
Module 2, delivery module 1 described in this way can be completed to cut three times to the advance feeding of each plate.
As shown in figure 3, it is symmetrical two groups that the cutter 22 in the cutting module 2, which is divided to, described in every group on cutter 22
Blade along it is described cutting 2 helical arrangement of module.During using the structure design, the plate is from 21 lower part of rotating roller
Between pass through.In this way when the cutter 22 of the cutting module 2 cuts plate face, each operation time point, the rotating roller
The blade of cutter head 221 to cut the plate, while the two cutting points are relatively entire on cutter 22 there are two tools on 21
Plate face it is symmetrical, while reaction force and symmetrical variation of the rotating roller 21 by cutter 22 in this way will not be to rotating roller
21 generate the torsion of radial direction so that stress is more reasonable, can greatly improve the service life of equipment.
The foregoing is merely the preferred modes of the present invention, are not intended to limit the invention, all spirit and original in the present invention
Within then, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of plate face flowing water processing unit (plant), it includes delivery module (1), cutting module (2), and the delivery module (1) includes
The carrier bar (11) being assemblied on supporting rack, the carrier bar (11) are connected by sprocket wheel (12) with drive mechanism, the carrier bar (11)
It is wrapped on sprocket wheel (12), forms both sides up and down, carrier bar (11) lower part on upper strata is equipped with support plate (13)；It is characterized in that：
Push plate (14) is fixed on the outer surface of the carrier bar (11)；Plate to be processed is placed on the front of the push plate (14), institute
The top that cutting module (2) is assemblied in the carrier bar (11) is stated, the cutting module (2) is including being parallel to the sprocket wheel (12)
The rotating roller (21) of axis, the rotating roller (21) are connected with drive mechanism, on the rotating roller (21) there are two fixing assemblings
With upper cutter (22), there is angle, the forepart of the cutter (22) is machined with blade, described between two adjacent cutters (22)
The blade of cutter (22) is to when the rotating roller (21) is followed to rotate, blade is cut into cutter groove, same rotation on the plate
The cutter groove edge that adjacent cutter (22) cuts on transfer roller (21) overlaps.
2. plate face flowing water processing unit (plant) according to claim 1, it is characterised in that：The cutter (22) is plate, described
The forepart of cutter (22) is designed with inclined surface, and the lopsided upper design of the cutter (22) has the cutter head (221) being fixedly connected,
Blade is machined on the cutter head (221).
3. plate face flowing water processing unit (plant) according to claim 2, it is characterised in that：The width of the cutter head (221) is more than
The width of the cutter (22) along the distance of rotating roller (21) axial direction is 0 between the cutter (22) that is connected on same rotating roller (21).
4. plate face flowing water processing unit (plant) according to claim 4, it is characterised in that：All cutting on carrier bar (11) top
Cut module (2) use identical size, along the conventional roll height on the cutting module (2) in carrier bar (11) direction of advance by
Gradually reduce.
5. plate face flowing water processing unit (plant) according to claim 1, it is characterised in that：The carrier bar of the delivery module (1)
(11) upper level is driven, and the top of carrier bar (11) is equipped with the cutting module (2) more than two, edge along its direction of advance
The bottom that blade reaches during described its rotary motion of cutting module (2) of carrier bar (11) direction of advance arrangement continuously decreases.
6. plate face flowing water processing unit (plant) according to claim 1, it is characterised in that：Cutter on the cutting module (2)
(22) it is divided into symmetrical two groups, the blade described in every group on cutter (22) cuts module (2) helical arrangement along described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810192968.7A CN108188488A (en) | 2018-03-09 | 2018-03-09 | Plate face flowing water processing unit (plant) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810192968.7A CN108188488A (en) | 2018-03-09 | 2018-03-09 | Plate face flowing water processing unit (plant) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108188488A true CN108188488A (en) | 2018-06-22 |
Family
ID=62595382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810192968.7A Pending CN108188488A (en) | 2018-03-09 | 2018-03-09 | Plate face flowing water processing unit (plant) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108188488A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1561281A (en) * | 2001-10-03 | 2005-01-05 | 路易吉·贝得利尼 | Facing machine for hard-fired ceramic tiles |
| CN201332663Y (en) * | 2008-12-30 | 2009-10-28 | 镇江市农业机械技术推广站 | Automatic umbilical part cutting machine |
| CN201346643Y (en) * | 2008-11-14 | 2009-11-18 | 鹤壁市蔼威镁业有限公司 | Novel magnesium ingot cutting knife roller |
| CN104191489A (en) * | 2014-07-28 | 2014-12-10 | 南京林业大学 | Machining device and machining method for surface carved indentations of an archaized wooden floor board |
| CN204160639U (en) * | 2014-10-14 | 2015-02-18 | 长兴正豪耐火材料有限公司 | A kind of high-efficiency and energy-saving type refractory brick chip processing unit (plant) |
| CN204747656U (en) * | 2015-07-27 | 2015-11-11 | 贵溪金砖铜业有限公司 | Copper bar sawing machine |
| CN207982452U (en) * | 2018-03-09 | 2018-10-19 | 赵徐增 | Plate face flowing water processing unit (plant) |
-
2018
- 2018-03-09 CN CN201810192968.7A patent/CN108188488A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1561281A (en) * | 2001-10-03 | 2005-01-05 | 路易吉·贝得利尼 | Facing machine for hard-fired ceramic tiles |
| CN201346643Y (en) * | 2008-11-14 | 2009-11-18 | 鹤壁市蔼威镁业有限公司 | Novel magnesium ingot cutting knife roller |
| CN201332663Y (en) * | 2008-12-30 | 2009-10-28 | 镇江市农业机械技术推广站 | Automatic umbilical part cutting machine |
| CN104191489A (en) * | 2014-07-28 | 2014-12-10 | 南京林业大学 | Machining device and machining method for surface carved indentations of an archaized wooden floor board |
| CN204160639U (en) * | 2014-10-14 | 2015-02-18 | 长兴正豪耐火材料有限公司 | A kind of high-efficiency and energy-saving type refractory brick chip processing unit (plant) |
| CN204747656U (en) * | 2015-07-27 | 2015-11-11 | 贵溪金砖铜业有限公司 | Copper bar sawing machine |
| CN207982452U (en) * | 2018-03-09 | 2018-10-19 | 赵徐增 | Plate face flowing water processing unit (plant) |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203495326U (en) | Horizontal type aluminum alloy cutting saw | |
| CN100515699C (en) | Carpentry machine tool used for log processing | |
| CN108723786A (en) | A kind of square tube cutting drilling deburring equipment | |
| CN205950413U (en) | Found compound multiaspect machining center lathe that crouches | |
| CN201483060U (en) | Modular facing cutter | |
| CN104441065A (en) | Strip cutting machine suitable for regular plate | |
| CN111644914B (en) | Pipe cutting grinding device for machine-building | |
| CN207982452U (en) | Plate face flowing water processing unit (plant) | |
| CN111098361A (en) | Turning and milling combined machining center | |
| CN101168257B (en) | Horizontal band saw cutting machine | |
| CN108356925A (en) | It is a kind of duplex sequence add gang drill cutting machine | |
| CN201026636Y (en) | Woodworking tool machine for machining of raw wood | |
| CN102490216A (en) | Wood working machine and processing platform thereof | |
| CN108188488A (en) | Plate face flowing water processing unit (plant) | |
| CN214922677U (en) | Waste collecting device for fixed beam planer type milling machine | |
| CN201279810Y (en) | Improved woodworking tool machine | |
| CN2597174Y (en) | Fine woodworking multi-blade circular sawing machine | |
| CN207942508U (en) | It is a kind of duplex sequence add gang drill cutting machine | |
| CN204658719U (en) | A kind of stone material cnc profiling machine | |
| CN112171392A (en) | Multidirectional cutter grinding mechanism with pressing structure | |
| CN205032929U (en) | Head structure of compound lathe is milled, ground | |
| CN216912238U (en) | Vertical and horizontal type three-surface bed saddle eight-axis milling special machine | |
| CN210791156U (en) | Circular knife supporting plate feeding mechanism of full-automatic cutting table | |
| CN220881006U (en) | Novel automatic feeding device for laser cutting machine | |
| CN219444164U (en) | Full-automatic processing special machine for reaming and perforating bottle mouth of hydrogen storage type III bottle |
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 |