CN113716370A - Soldering lug distributing mechanism and distributing method - Google Patents
Soldering lug distributing mechanism and distributing method Download PDFInfo
- Publication number
- CN113716370A CN113716370A CN202110931850.3A CN202110931850A CN113716370A CN 113716370 A CN113716370 A CN 113716370A CN 202110931850 A CN202110931850 A CN 202110931850A CN 113716370 A CN113716370 A CN 113716370A
- Authority
- CN
- China
- Prior art keywords
- rack
- mounting
- translation
- assembly
- soldering lug
- 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
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/08—Separating articles from piles using pneumatic force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/08—Separating articles from piles using pneumatic force
- B65H3/0808—Suction grippers
- B65H3/0816—Suction grippers separating from the top of pile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/66—Article guides or smoothers, e.g. movable in operation
Abstract
The invention relates to a soldering lug distributing mechanism and a distributing method. The feed divider includes erection column, pushes down subassembly, blank subassembly and translation subassembly, and the erection column is vertical to be set up on the base. The pushing assembly and the translation assembly are arranged on the mounting column, and the pushing assembly can be partially stacked on the material rack. The blank subassembly includes blank mounting bracket and blank groove, and the blank mounting bracket slides and sets up on the translation subassembly, and the blank groove slides and sets up on the blank mounting bracket, and the blank groove can partly superpose on the push down subassembly. The lifting device comprises a lifting plate, the lifting plate is arranged on the mounting column in a sliding mode, and the lifting plate is detachably connected with the material rack. The soldering lug is not required to be manually participated in the material distribution process, and the material distribution efficiency is high. The soldering lug that is located the top on can only holding the work or material rest at every turn in the blank groove, the translation of blank groove all peels off the soldering lug at top at every turn, avoids the condition of multi-disc adhesion to take place to divide the material precision has been improved effectively.
Description
Technical Field
The invention relates to the technical field of material distribution equipment, in particular to a soldering lug material distribution mechanism and a material distribution method.
Background
The electric automobile is a vehicle which takes a vehicle-mounted power supply as power and drives wheels to run by using a motor, and meets various requirements of road traffic and safety regulations. Because the influence on the environment is smaller than that of the traditional automobile, the prospect is widely seen. The soldering lug is a key accessory used in a refrigeration structure on a new product of the electric automobile, the soldering lug is an aluminum thin sheet, and a plurality of soldering lugs are generally overlapped together in the production process of the soldering lug so as to improve the production efficiency of the soldering lug. When the automatic soldering lug separating device is used, the multiple soldering lug single pieces which are overlapped together need to be separated, manual material distribution is adopted at present, the material distribution precision of manual material distribution is low, the situation that a plurality of pieces are attached without separation is easily caused, the follow-up use of soldering lugs is seriously influenced, in addition, the manual material distribution efficiency is low, the labor cost is high, and the automatic soldering lug separating device cannot be matched with full-automatic high-speed production equipment.
Disclosure of Invention
Technical problem to be solved
In view of the above disadvantages and shortcomings of the prior art, the present invention provides a solder piece separating mechanism and a separating method, which solve the technical problems of easy adhesion and low solder piece separating efficiency during solder piece separating.
(II) technical scheme
In order to achieve the above object, the solder piece separating mechanism of the present invention comprises:
a base;
the material rest is arranged on the base in a sliding mode and used for placing a plurality of welding sheets which are overlapped up and down;
the material distributing device comprises an installation column, a pressing component, a material cutting component and a translation component; the mounting column is vertically arranged on the base;
the pressing assembly is arranged on the mounting column in a sliding mode and can be partially overlapped on the material rack;
the translation assembly is arranged on the mounting column;
the blanking assembly comprises a blanking mounting frame and a blanking groove, the blanking mounting frame is slidably arranged on the translation assembly, the blanking groove is slidably arranged on the blanking mounting frame, and the blanking groove can be partially overlapped on the pressing assembly; and the number of the first and second groups,
the lifting device comprises a lifting plate, the lifting plate is arranged on the mounting column in a sliding mode, and the lifting plate is detachably connected with the material rack.
Optionally, the rack comprises a rack mounting seat, a rack sliding block and a plurality of rack guide posts;
the rack mounting seat is arranged on the base in a sliding mode, and a plurality of rack guide pillars are vertically arranged on the rack mounting seat;
the material rack sliding block is sleeved on the material rack guide post, a material rack mounting hole is formed in the surface, opposite to the lifting plate, of the material rack sliding block, a lifting mounting column is arranged on the lifting plate, and the central axis of the material rack mounting hole is collinear with the central axis of the lifting mounting column and is horizontally arranged;
the plurality of soldering lugs are sleeved on the material rack guide post and are located above the sliding block.
Optionally, the rack mounting base includes a rack moving table and a rack mounting table;
the material rack mounting table is stacked on the material rack moving table, and the material rack guide column is vertically arranged on the material rack mounting table;
the material rack moving platform is provided with a plurality of material rack positioning shafts, the material rack mounting platform is provided with a plurality of shaft sleeves, and the shaft sleeves are in one-to-one correspondence detachable connection with the material rack positioning shafts;
the rack moving platform is arranged on the base in a sliding mode through the rack guide rail, and the central axis of the rack mounting hole is parallel to the rack guide rail.
Optionally, the pressing assembly comprises a pressing mounting frame, a pressing plate and a pressing cylinder;
the downward pressing mounting rack is arranged on the mounting column in a sliding mode and is positioned below the translation assembly;
the downward-pressing air cylinder is arranged on the translation assembly, a piston rod of the downward-pressing air cylinder is vertically arranged downwards, and the piston rod of the downward-pressing air cylinder is connected with the downward-pressing mounting frame;
the lower pressing plate is horizontally arranged on the lower pressing mounting frame, and the lower pressing plate can be stacked on the material rack.
Optionally, a feeding window which is communicated up and down is formed in the lower pressing plate, the shape of the feeding window is matched with that of the soldering lug, and the soldering lug can penetrate through the feeding window upwards;
the material rack guide column can be inserted into the material loading window, and the horizontal height of the top end of the material rack guide column is lower than that of the upper surface of the lower pressing plate.
Optionally, the blanking assembly further comprises an upper pressing plate, a mounting plate, a blanking cylinder and a plurality of blanking guide rods;
the blanking guide rod is vertically arranged on the blanking mounting frame through a linear bearing, the upper end of the blanking guide rod is connected with the mounting plate, and the upper pressing plate is horizontally arranged at the lower end of the blanking guide rod;
the cylinder body of the material cutting cylinder is arranged on the mounting plate, and a piston rod of the material cutting cylinder is vertically and downwards connected with the translation assembly;
the lower surface of the upper pressing plate is provided with the cutting groove, and the shape of the cutting groove is matched with that of the soldering lug; the depth value of the material cutting groove is H, the thickness value of the soldering lug is D, and H is smaller than D; the material cutting groove can be positioned right above the material loading window; a plurality of air blowing holes are formed in the bottom of the material cutting groove and connected with air supply equipment; the bottom of the cutting groove is provided with a plurality of suction nozzles, the suction nozzles are connected with a vacuum generator, and the suction nozzles can adsorb soldering lugs in the cutting groove;
a gap is arranged between the lower surface of the upper pressure plate and the upper surface of the lower pressure plate, the width value of the gap is L, and L is smaller than D; and D < L + H < 2D.
Optionally, the translation assembly comprises a translation mounting frame, a translation motor and a translation screw rod assembly;
the cutting mounting frame is arranged on the translation mounting frame in a sliding manner through a horizontally arranged cutting guide rail;
the translation motor and the translation screw rod assembly are both arranged on the translation mounting frame, a screw rod of the translation screw rod assembly is parallel to the blanking guide rail, and a rotor shaft of the translation motor is connected with the screw rod of the translation screw rod assembly;
the blank mounting frame is connected with the nut of the translation screw rod assembly.
Optionally, the lifting device further comprises a lifting motor and a lifting screw rod assembly;
a screw rod of the lifting screw rod assembly is vertically arranged on the base, and the screw rod of the lifting screw rod assembly is rotationally connected with the base;
the lifting motor is arranged on the base, and a rotor shaft of the lifting motor is connected with a screw rod of the lifting screw rod assembly;
the lifting plate is connected with the nut of the lifting screw rod assembly.
Optionally, the soldering lug distributing mechanism and the distributing method further comprise a material placing device;
the material placing device comprises a material placing table, a material placing mounting seat and a material placing driving assembly;
the material placing mounting seat is arranged on the base in a sliding mode through a material placing guide rail, the material placing driving assembly is arranged on the material placing mounting seat, and the material placing driving assembly can drive the material placing mounting seat to move along the material placing guide rail;
the material placing table is arranged on the material placing mounting seat, and the upper end surface of the material placing table is horizontal;
the welding piece placing device is characterized in that a material placing groove matched with the welding piece in shape is formed in the upper end face of the material placing table, a plurality of vacuum suction heads are arranged at the bottom of the material placing groove, and the vacuum suction heads can adsorb the welding piece in the material placing groove.
Further, the invention also provides a soldering lug distributing method, which comprises the following steps:
sliding the material rack provided with the plurality of soldering lugs to the lower part of the lower pressing plate;
the lower pressing plate moves downwards for a first set distance, so that the lower pressing plate is sleeved on the material rack;
the upper pressing plate moves downwards to enable the upper pressing plate to be superposed on the lower pressing plate;
the lifting plate lifts the soldering lug on the material rack upwards to enable the soldering lug part at the topmost end on the material rack to be cut into the material slot;
the upper pressing plate horizontally moves for a second set distance;
the suction nozzle adsorbs the soldering lug positioned at the topmost end on the material rack, and the air blowing hole blows air;
and the upper pressing plate moves upwards for a third set distance and then moves horizontally to the position above the material placing table, and the upper pressing plate moves downwards and places the soldering lug on the material placing table.
(III) advantageous effects
The shape in cutting the silo is the same with the soldering lug, the blank silo, push down subassembly and work or material rest from the top down superpose in proper order, the soldering lug that the lift plate in with the work or material rest upwards promotes, the soldering lug that is located the top passes and gets into the cutting silo behind the push down subassembly, the translation subassembly drives the cutting silo and carries out horizontal translation motion, the soldering lug that is located the cutting silo is because the restriction that receives the blank silo and is translated along with the cutting silo, the soldering lug that is located on the work or material rest receives the restriction that pushes down the subassembly and can't remove, thereby the separation of the soldering lug on top and the soldering lug of lower floor has been realized. The solder piece distributing process is automatically completed through the distributing mechanism, manual participation is not needed, the distributing efficiency is high, and the labor cost is low; and, can only hold the soldering lug that is located the top on the work or material rest at every turn in the blank groove, the blank groove translation all peels off the soldering lug of top at every turn, can be accurate after through the multiple operation with soldering lug monolithic separation, avoids the condition emergence of the multi-disc adhesion that artifical branch material in-process appears to improve branch material precision effectively.
Drawings
Fig. 1 is a schematic perspective view of a first viewing angle of the soldering lug distributing mechanism of the invention;
fig. 2 is a schematic perspective view of a second viewing angle of the soldering lug distributing mechanism of the invention;
fig. 3 is a schematic structural diagram of a material rest of the soldering lug distributing mechanism of the invention;
fig. 4 is a schematic perspective view of a blanking assembly of the soldering lug distributing mechanism of the invention;
fig. 5 is a bottom view of the blanking assembly of the tab dispensing mechanism of the present invention;
fig. 6 is a flow chart of the solder tab separation method of the present invention.
[ description of reference ]
100: a base; 101: soldering lugs; 1000: a gap;
1: a material rack;
11: a rack mounting seat; 111: a rack moving table; 112: a rack mounting table; 113: a shaft sleeve; 114: a rack guide rail;
12: a rack slide block; 13: a material rack guide post; 14: a rack mounting hole;
2: a material distributing device; 21: mounting a column;
22: pressing the assembly; 221: pressing down the mounting rack; 222: a lower pressing plate; 223: pressing down the air cylinder;
23: a material cutting assembly; 231: a material cutting mounting rack; 232: a material cutting groove; 233: an upper pressure plate; 234: mounting a plate; 235: a material cutting cylinder; 236: a material cutting guide rod; 237: a linear bearing;
241: a translation mounting rack; 242: a translation motor; 243: a translation screw rod assembly; 245: a blanking guide rail;
3: a lifting device; 31: a lifting plate; 32: a hoisting motor; 33: a lifting screw rod assembly;
4: a material placing device; 41: a material placing table; 42: a material placing mounting seat; 43: a material placing driving component; 44: a material placing guide rail; 45: and a material placing groove.
Detailed Description
For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings. In which the terms "upper", "lower", etc. are used herein with reference to the orientation of fig. 1.
For a better understanding of the above-described technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
As shown in fig. 1 and 2, the present invention provides a solder piece separating mechanism, which includes: the automatic material distribution device comprises a base 100, a material rack 1, a material distribution device 2 and a lifting device 3. Wherein, work or material rest 1 sets up on base 100 in the slip, and work or material rest 1 is used for placing soldering lug 101. The soldering lug 101 is provided with a plurality of through holes and is a key accessory on refrigeration equipment of the electric automobile. A plurality of bonding pads 101 stacked one on top of the other are simultaneously placed on the rack 1, and when the bonding pads 101 are used, the stacked bonding pads 101 need to be separated individually, which is a necessary operation for subsequent use. The feed divider 2 includes a mounting post 21, a hold-down assembly 22, a blanking assembly 23, and a translation assembly. The erection column 21 is vertical to be set up on base 100, pushes down subassembly 22 and slides and set up on erection column 21, pushes down subassembly 22 and can partially superpose on work or material rest 1, through the fixed work or material rest 1's of pushing down the mechanism position to restrict the kinematic position of soldering lug 101, make soldering lug 101 can't break away from work or material rest 1 at the soldering lug of monolithic separation in-process lower floor. Blank subassembly 23 includes blank mounting bracket 231 and blank groove 232, and the translation subassembly sets up on erection column 21, and blank mounting bracket 231 slides and sets up on the translation subassembly, and blank groove 232 slides and sets up on blank mounting bracket 231, and blank groove 232 can partly superpose on pushing down subassembly 22. Lifting device 3 includes lifting plate 31, and lifting plate 31 slides and sets up on erection column 21, and lifting plate 31 can dismantle with work or material rest 1 and be connected, and work or material rest 1 slides to pushing down subassembly 22 below, and work or material rest 1 is connected with lifting plate 31, upwards promotes soldering lug 101 to cutting the silo 232 in through lifting plate 31. The shape of cutting groove 232 is the same as soldering lug 101, cutting groove 232, push down subassembly 22 and work or material rest 1 from the top down superpose in proper order, lift plate 31 promotes soldering lug 101 in work or material rest 1 upwards, the soldering lug 101 that is located the topmost passes and enters into cutting groove 232 behind push down subassembly 22, the translation subassembly drives cutting groove 232 and carries out horizontal translation motion, the soldering lug 101 that is located cutting groove 232 translates along with cutting groove 232 owing to receiving the restriction of cutting groove 232, the soldering lug 101 that is located work or material rest 1 receives the restriction of push down subassembly 22 and can't move, thereby the separation of the soldering lug 101 on top and the soldering lug 101 of lower floor has been realized. The material distribution process of the soldering lug 101 is automatically completed through the material distribution mechanism, manual participation is not needed, the material distribution efficiency is high, and the labor cost is low; and, can only hold the soldering lug 101 that is located the topmost on work or material rest 1 at every turn in blank groove 232, the translation of blank groove 232 all peels off the soldering lug 101 of topmost at every turn, can be accurate after through the multiple operation with soldering lug 101 monolithic separation, avoids the condition emergence of the adhesion of the multi-disc that artifical material distribution in-process appears to improved branch material precision effectively.
As shown in fig. 3, the stack 1 includes a stack mounting base 11, a stack slider 12, and a plurality of stack guide posts 13. Work or material rest mount pad 11 slides and sets up on base 100, and a plurality of work or material rest guide pillars 13 are all vertical to be set up on work or material rest mount pad 11. The number of the material guiding columns of the material rack 1 is preferably two, the outer diameter of the material guiding column of the material rack 1 is selected according to the diameter of the hole in the soldering lug 101, and the outer diameter of the material guiding column of the material rack 1 is smaller than the diameter of the hole in the soldering lug 101. The position of the material guiding columns of the material rack 1 is also determined according to the position of the hole in the soldering lug 101, so that the soldering lug 101 can be sleeved on the material guiding columns of the two material racks 1 at the same time. On work or material rest guide pillar 13 is located to work or material rest slider 12 cover, similar with soldering lug 101, work or material rest slider 12 can overlap simultaneously and establish on two work or material rests 1 to the material post, and a plurality of soldering lugs 101 all are located the top of slider, and the level height of soldering lug 101 is promoted through the upward movement of work or material rest slider 12. Wherein, a rack mounting hole 14 has been seted up on the face that rack slider 12 is relative with the lift plate 31, is provided with on the lift plate 31 and promotes the erection column 21, and the axis of rack mounting hole 14 and the axis collineation that promotes the erection column 21 just all level the setting. When the stack 1 is slid under the hold-down assembly 22, the lift mounting posts 21 are inserted into the stack mounting holes 14. When the lifting plate 31 moves upwards, the material rack sliding block 12 is driven to move upwards along the material rack guide post 13 by lifting the mounting post 21, so that the soldering lug 101 located above the material rack sliding block 12 is driven to move upwards together, and the soldering lug 101 located at the top end is pushed into the material cutting groove 232.
As shown in fig. 3, the rack mount 11 includes a rack moving stage 111 and a rack mount stage 112. The material rack mounting table 112 is stacked on the material rack moving table 111, and the material rack guide posts 13 are vertically arranged on the material rack mounting table 112. A plurality of rack 1 positioning shafts are arranged on the rack moving platform 111, a plurality of shaft sleeves 113 are arranged on the rack mounting platform 112, and the plurality of shaft sleeves 113 are detachably connected with the plurality of rack 1 positioning shafts in a one-to-one correspondence manner. As shown in fig. 1, the rack moving stage 111 is slidably disposed on the base 100 through a rack guide rail 114, and an extending direction of the rack guide rail 114 is perpendicular to a moving direction of the translation assembly. The axis of work or material rest mounting hole 14 is parallel with work or material rest guide rail 114, and work or material rest 1 is convenient for will promote the erection column 21 and insert in work or material rest mounting hole 14, easy dismounting when moving along work or material rest guide rail 114. When the material rack 1 is fed, firstly, the material rack 1 slides along the material rack guide rail 114, so that the material rack 1 slides away from the pressing component 22; then the material rack mounting table 112 and the material rack guide post 13 are taken down together; then, sleeving the stacked soldering lugs 101 on the material rack guide pillars 13, and loading the material rack guide pillars 13 sleeved with the soldering lugs 101 and the material rack mounting table 112 back to the material rack moving table 111; and finally, the rack moving table 111 is slid to the position below the pressing assembly 22 to perform material distribution operation. The material rack moving platform 111 and the material rack mounting platform 112 are detachably connected with the shaft sleeve 113 through the material rack 1 positioning shaft, so that the material rack moving platform and the material rack mounting platform are convenient to disassemble and assemble, the feeding convenience of the feeding rack 1 is improved, and the material distributing efficiency is improved.
As shown in fig. 1 and 2, the hold-down assembly 22 includes a hold-down mounting bracket 221, a hold-down plate 222, and a hold-down cylinder 223. The lower press mounting bracket 221 is slidably disposed on the mounting post 21, and the lower press mounting bracket 221 is located below the translation assembly. The lower air cylinder 223 is arranged on the translation assembly, a piston rod of the lower air cylinder 223 is vertically arranged downwards, the piston rod of the lower air cylinder 223 is connected with the lower mounting frame 221, and the lower mounting frame 221 is pushed or pulled to move up and down along the mounting column 21 through the lower air cylinder 223. Lower press plate 222 is horizontally disposed on lower press mounting bracket 221, and when stack 1 moves along stack rail 114 to below lower press assembly 22, lower press plate 222 moves downward under the action of lower press cylinder 223, and lower press plate 222 is stacked on stack 1. The feeding window which is through up and down is formed in the lower pressing plate 222, the shape of the feeding window is matched with that of the soldering lug 101, when the lower pressing plate 222 is stacked on the material rack 1, the material rack sliding block 12 pushes the soldering lug 101 upwards to penetrate through the feeding window, the soldering lug 101 positioned at the top end is pushed to the material cutting groove 232, the material rack guide post 13 at the moment is inserted into the feeding window, the horizontal height of the top end of the material rack guide post 13 is lower than that of the upper surface of the lower pressing plate 222, and the situation that the soldering lug 101 in the material cutting groove 232 cannot move due to limitation of the material rack guide post 13 when the material cutting groove 232 translates is avoided.
As shown in fig. 4 and 5, the blanking assembly 23 further includes an upper platen 233, a mounting plate 234, a blanking cylinder 235, and a plurality of blanking guides 236. The blanking guide rod 236 is vertically disposed on the blanking mounting bracket 231 through a linear bearing 237, and the blanking guide rod 236 can slide up and down relative to the blanking mounting bracket 231. The upper end of the blanking guide 236 is connected with the mounting plate 234, and the upper press plate 233 is horizontally disposed at the lower end of the blanking guide 236. The cylinder body of the blanking cylinder 235 is arranged on the mounting plate 234, and the piston rod of the blanking cylinder 235 is vertically connected with the translation mounting frame 241 of the translation assembly downwards. Since the cylinder body of the material cutting cylinder 235 is disposed on the mounting plate 234, and the translational mounting frame 241 is kept stationary in the vertical direction, both the upper platen 233 and the mounting plate 234 move up and down under the action of the material cutting cylinder 235, and the cylinder body of the material cutting cylinder 235 disposed on the mounting plate 234 also moves up and down along with the mounting plate 234. The blanking mounting rack 231 is slidably disposed on the translational mounting rack 241, so that the blanking assembly 23 can slide on the translational mounting rack 241, and the upper platen 233 and the lower platen 222 generate relative movement in the horizontal direction. Cut silo 232 and offer the lower surface of top plate 233, the shape of cut silo 232 and the shape phase-match of soldering lug 101, the soldering lug 101 that is located the top on work or material rest 1 can get into in cutting silo 232. The depth value of the material cutting groove 232 is H, the thickness value of the soldering lug 101 is D, and H is smaller than D. When the upper platen 233 is stacked on the lower platen 222, the material cutting groove 232 is located directly above the material loading window. A gap 1000 is arranged between the lower surface of the upper pressing plate 233 and the upper surface of the lower pressing plate 222, the width of the gap 1000 is L, L is smaller than D, and D is smaller than L + H and smaller than 2D. For convenience of describing the material cutting process, the soldering lug 101 positioned at the top end on the material rack 1 is referred to as a first soldering lug, the soldering lug 101 attached to the first soldering lug is referred to as a second soldering lug, the soldering lug 101 attached to the second soldering lug is referred to as a third soldering lug, and so on. The upper portion of the first soldering lug is located in the material cutting groove 232, the lower portion of the first soldering lug is located in the gap 1000, the upper portion of the second soldering lug is located in the gap 1000, the lower portion of the second soldering lug is located in the material loading window, when the upper pressing plate 233 and the lower pressing plate 222 move in the horizontal direction, the first soldering lug moves together with the upper pressing plate 233 under the action of the material cutting groove 232, the second soldering lug is limited by the material loading window and cannot move, and therefore the first soldering lug and the second soldering lug are separated.
Preferably, a plurality of air blowing holes are formed in the bottom of the blanking groove 232 and connected through air blowing pipes, and the air blowing pipes are connected with air supply equipment. The tank bottom of cutting trough 232 is provided with a plurality of suction nozzles, and vacuum generator is connected to the suction nozzle, and the suction nozzle can adsorb soldering lug 101 in cutting trough 232. When first soldering lug and second soldering lug directly produce relative displacement, the distance of displacement can be selected for very little one section, make between first soldering lug and the second soldering lug misplace can, the suction nozzle adsorbs first soldering lug this moment, blow in high-speed air current to cutting groove 232 through the hole of blowing, the air current thoroughly separates first soldering lug and second soldering lug, avoid laminating, promote top board 233 through blank cylinder 235 this moment, separate top board 233 and lower pressing plate 222, first soldering lug is hugged closely to close under the effect of suction nozzle and is moved along with top board 233 in cutting groove 232, thereby realized the separation of first soldering lug and second soldering lug, blow and promote the process and also can go on simultaneously, in order to improve and divide material efficiency.
As shown in fig. 2, the translation assembly includes a translation mounting bracket 241, a translation motor 242, and a translation screw assembly 243. The blanking mount 231 is slidably disposed on the translation mount 241 by horizontally disposed blanking rails 245. The translation motor 242 and the translation screw rod assembly 243 are both arranged on the translation mounting frame 241, the screw rod of the translation screw rod assembly 243 is parallel to the cutting guide rail 245, the rotor shaft of the translation motor 242 is connected with the screw rod of the translation screw rod assembly 243 to drive the screw rod to rotate, and the cutting mounting frame 231 is connected with the nut of the translation screw rod assembly 243. Under the action of the translation motor 242, the blanking mounting frame 231 moves horizontally along the blanking guide 245, so as to drive the blanking assembly 23 to move horizontally. The horizontal movement of the blanking assembly 23 includes a small horizontal displacement of the blanking process and a horizontal movement of the blanking process.
As shown in fig. 1 and 2, the lifting device 3 further includes a lifting motor 32 and a lifting screw assembly 33. The lead screw of the lifting lead screw assembly 33 is vertically arranged on the base 100, and the lead screw of the lifting lead screw assembly 33 is rotatably connected with the base 100 through a bearing. The lifting motor 32 is disposed on the base 100, a rotor shaft of the lifting motor 32 is connected to a lead screw of the lifting lead screw assembly 33 to drive the lead screw to rotate, and the lifting plate 31 is connected to a nut of the lifting lead screw assembly 33. Under lifting motor 32's effect, lifting plate 31 can be along erection column 21 up-and-down motion to drive work or material rest slider 12 up-and-down motion, separate a soldering lug 101 for every minute, lifting plate 31 limit one section distance of rebound, the soldering lug 101 that makes to be located the top on work or material rest 1 is in blank groove 232 all the time.
As shown in fig. 2, the soldering lug distributing mechanism further includes a material placing device 4, and the material placing device 4 is used for receiving the separated soldering lug 101. The material placing device 4 includes a material placing table 41, a material placing mounting seat 42, and a material placing driving assembly 43. The material placing installation seat 42 is arranged on the base 100 in a sliding mode through the material placing guide rail 44, the material placing driving assembly 43 is arranged on the material placing installation seat 42, and the material placing driving assembly 43 can drive the material placing installation seat 42 to move along the material placing guide rail 44. The material placing driving assembly 43 can be a motor and screw rod assembly or an air cylinder. The material placing table 41 is arranged on the material placing mounting base 42 through a plurality of vertical rods, the upper end face of the material placing table 41 is horizontal, the height of the material placing table 41 is preferably the same as the horizontal height of the lower pressing plate 222 when the material placing table 1 is stacked, and when the soldering lug 101 is placed on the material placing table 41, the pressing distance of the upper pressing plate 233 is the same as the pressing distance of the soldering lug when the first soldering lug is separated, so that the control is convenient. The upper end face of the material placing table 41 is provided with a material placing groove 45 matched with the shape of the soldering lug 101, the bottom of the material placing groove 45 is provided with a plurality of vacuum suction heads, the soldering lug 101 in the material cutting groove 232 is placed in the material placing groove 45 through the lower pressing plate 222, and the vacuum suction heads absorb the soldering lug 101 in the material placing groove 45.
Further, the invention also provides a soldering lug distributing method, which comprises the following steps:
the plurality of soldering lugs 101 are sleeved on the material rack 1, and the material rack 1 with the plurality of soldering lugs 101 is slid to the lower portion of the lower pressing plate 222.
Lower pressing plate 222 moves downward by a first set distance, so that lower pressing plate 222 is sleeved on rack guide post 13 of rack 1, the first set distance is that lower pressing plate 222 can be sleeved on rack guide post 13 of rack 1, and the horizontal height of the top end of rack guide post 13 is lower than the horizontal height of the upper surface of lower pressing plate 222.
The downward movement of upper platen 233 causes upper platen 233 to overlap lower platen 222.
The lifting plate 31 lifts the soldering lug 101 on the rack 1 upwards, so that the soldering lug 101 on the topmost part of the rack 1 is partially cut into the material cutting groove 232.
The suction nozzle adsorbs soldering lug 101 located at the topmost end on the material rack 1, and the air blowing holes blow air, so that the two overlapped soldering lugs 101 are thoroughly separated, and adhesion is prevented.
The upper press plate 233 moves upward by a third set distance selected according to the user's setting and then moves horizontally to above the placement table 41, and the upper press plate 233 moves downward to place the soldering chip 101 on the placement table 41 in order to detach the soldering chip 101 located at the topmost end from the rack 1.
The material distribution process specifically comprises the following steps: firstly, the rack 1 feeds the soldering lug into the cutting groove 232, so that the upper part of the first soldering lug is positioned in the cutting groove 232, the lower part of the first soldering lug is positioned in the gap 1000, the upper part of the second soldering lug is positioned in the gap 1000, and the lower part of the second soldering lug is positioned in the loading window. Secondly, under the effect of the translation assembly, the upper press plate 233 moves horizontally for a certain distance, relative motion is generated between the upper press plate 233 and the lower press plate 222 in the horizontal direction, the first soldering lug moves along with the upper press plate 233 under the effect of the material cutting groove 232, the second soldering lug cannot move due to the limitation of the material feeding window, and dislocation is generated between the first soldering lug and the second soldering lug. Then, the suction nozzle sucks the first bonding pad, and separates the portion adhered between the first bonding pad and the second bonding pad by air blowing. Meanwhile, the upper pressing plate 233 moves upward for a certain distance to completely separate the first soldering lug from the second soldering lug, and the cutting mounting frame 231 moves horizontally along the cutting guide rail 245 under the action of the translation assembly, so that the upper pressing plate 233 is located above the material placing table 41. Finally, the upper press plate 233 moves downward and places the first bonding pad on the material placing table 41, completing the material dividing process. The material distributing process is automatically completed through the material distributing mechanism, manual participation is not needed, the material distributing efficiency is high, and the labor cost is low; and, can only hold the soldering lug 101 that is located the topmost on work or material rest 1 at every turn in blank groove 232, the translation of blank groove 232 all peels off the soldering lug 101 of topmost at every turn, can be accurate after through the multiple operation with soldering lug 101 monolithic separation, avoids the condition emergence of the adhesion of the multi-disc that artifical material distribution in-process appears to improved branch material precision effectively.
In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; either as communication within the two elements or as an interactive relationship of the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, a first feature may be "on" or "under" a second feature, and the first and second features may be in direct contact, or the first and second features may be in indirect contact via an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lower level than the second feature.
In the description herein, the description of the terms "one embodiment," "some embodiments," "an embodiment," "an example," "a specific example" or "some examples" or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are illustrative and not restrictive, and that those skilled in the art may make changes, modifications, substitutions and alterations to the above embodiments without departing from the scope of the present invention.
Claims (10)
1. The utility model provides a soldering lug feed mechanism which characterized in that, soldering lug feed mechanism includes:
a base;
the material rest is arranged on the base in a sliding mode and used for placing a plurality of welding sheets which are overlapped up and down;
the material distributing device comprises an installation column, a pressing component, a material cutting component and a translation component; the mounting column is vertically arranged on the base; the pressing assembly is arranged on the mounting column in a sliding mode and can be partially overlapped on the material rack; the translation assembly is arranged on the mounting column; the blanking assembly comprises a blanking mounting frame and a blanking groove, the blanking mounting frame is slidably arranged on the translation assembly, the blanking groove is slidably arranged on the blanking mounting frame, and the blanking groove can be partially overlapped on the pressing assembly; and the number of the first and second groups,
the lifting device comprises a lifting plate, the lifting plate is arranged on the mounting column in a sliding mode, and the lifting plate is detachably connected with the material rack.
2. The solder lug dispensing mechanism of claim 1, wherein the stack includes a stack mount, a stack slide, and a plurality of stack guide posts;
the rack mounting seat is arranged on the base in a sliding mode, and a plurality of rack guide pillars are vertically arranged on the rack mounting seat;
the material rack sliding block is sleeved on the material rack guide post, a material rack mounting hole is formed in the surface, opposite to the lifting plate, of the material rack sliding block, a lifting mounting column is arranged on the lifting plate, and the central axis of the material rack mounting hole is collinear with the central axis of the lifting mounting column and is horizontally arranged;
the plurality of soldering lugs are sleeved on the material rack guide post and are located above the sliding block.
3. The solder pad dispensing mechanism of claim 2, wherein the rack mount includes a rack moving stage and a rack mounting stage;
the material rack mounting table is stacked on the material rack moving table, and the material rack guide column is vertically arranged on the material rack mounting table;
the material rack moving platform is provided with a plurality of material rack positioning shafts, the material rack mounting platform is provided with a plurality of shaft sleeves, and the shaft sleeves are in one-to-one correspondence detachable connection with the material rack positioning shafts;
the rack moving platform is arranged on the base in a sliding mode through the rack guide rail, and the central axis of the rack mounting hole is parallel to the rack guide rail.
4. The solder lug separating mechanism according to claim 2, wherein the press-down assembly comprises a press-down mounting frame, a press-down plate and a press-down cylinder;
the downward pressing mounting rack is arranged on the mounting column in a sliding mode and is positioned below the translation assembly;
the downward-pressing air cylinder is arranged on the translation assembly, a piston rod of the downward-pressing air cylinder is vertically arranged downwards, and the piston rod of the downward-pressing air cylinder is connected with the downward-pressing mounting frame;
the lower pressing plate is horizontally arranged on the lower pressing mounting frame, and the lower pressing plate can be stacked on the material rack.
5. The soldering lug distributing mechanism according to claim 4, wherein the lower pressing plate is provided with a feeding window which is communicated up and down, the shape of the feeding window is matched with that of the soldering lug, and the soldering lug can upwards penetrate through the feeding window;
the material rack guide column can be inserted into the material loading window, and the horizontal height of the top end of the material rack guide column is lower than that of the upper surface of the lower pressing plate.
6. The solder piece distributing mechanism according to claim 5, wherein the blanking assembly further comprises an upper pressing plate, a mounting plate, a blanking cylinder and a plurality of blanking guide rods;
the blanking guide rod is vertically arranged on the blanking mounting frame through a linear bearing, the upper end of the blanking guide rod is connected with the mounting plate, and the upper pressing plate is horizontally arranged at the lower end of the blanking guide rod;
the cylinder body of the material cutting cylinder is arranged on the mounting plate, and a piston rod of the material cutting cylinder is vertically and downwards connected with the translation assembly;
the lower surface of the upper pressing plate is provided with the cutting groove, and the shape of the cutting groove is matched with that of the soldering lug; the depth value of the material cutting groove is H, the thickness value of the soldering lug is D, and H is smaller than D; the material cutting groove can be positioned right above the material loading window; a plurality of air blowing holes are formed in the bottom of the material cutting groove and connected with air supply equipment; the bottom of the cutting groove is provided with a plurality of suction nozzles, the suction nozzles are connected with a vacuum generator, and the suction nozzles can adsorb soldering lugs in the cutting groove;
a gap is arranged between the lower surface of the upper pressure plate and the upper surface of the lower pressure plate, the width value of the gap is L, and L is smaller than D; and D < L + H < 2D.
7. The solder piece distribution mechanism of any one of claims 1-6, wherein the translation assembly includes a translation mounting bracket, a translation motor, and a translation lead screw assembly;
the cutting mounting frame is arranged on the translation mounting frame in a sliding manner through a horizontally arranged cutting guide rail;
the translation motor and the translation screw rod assembly are both arranged on the translation mounting frame, a screw rod of the translation screw rod assembly is parallel to the blanking guide rail, and a rotor shaft of the translation motor is connected with the screw rod of the translation screw rod assembly;
the blank mounting frame is connected with the nut of the translation screw rod assembly.
8. The solder piece distribution mechanism according to any one of claims 1-6, wherein the lifting device further comprises a lifting motor and a lifting screw assembly;
a screw rod of the lifting screw rod assembly is vertically arranged on the base, and the screw rod of the lifting screw rod assembly is rotationally connected with the base;
the lifting motor is arranged on the base, and a rotor shaft of the lifting motor is connected with a screw rod of the lifting screw rod assembly;
the lifting plate is connected with the nut of the lifting screw rod assembly.
9. The solder piece distributing mechanism according to any one of claims 1 to 6, wherein the solder piece distributing mechanism further comprises a material placing device;
the material placing device comprises a material placing table, a material placing mounting seat and a material placing driving assembly;
the material placing mounting seat is arranged on the base in a sliding mode through a material placing guide rail, the material placing driving assembly is arranged on the material placing mounting seat, and the material placing driving assembly can drive the material placing mounting seat to move along the material placing guide rail;
the material placing table is arranged on the material placing mounting seat, and the upper end surface of the material placing table is horizontal;
the welding piece placing device is characterized in that a material placing groove matched with the welding piece in shape is formed in the upper end face of the material placing table, a plurality of vacuum suction heads are arranged at the bottom of the material placing groove, and the vacuum suction heads can adsorb the welding piece in the material placing groove.
10. A solder piece separating method applied to the solder piece separating mechanism according to any one of claims 1 to 9, wherein the solder piece separating method comprises:
sliding the material rack provided with the plurality of soldering lugs to the lower part of the lower pressing plate;
the lower pressing plate moves downwards for a first set distance, so that the lower pressing plate is sleeved on the material rack;
the upper pressing plate moves downwards to enable the upper pressing plate to be superposed on the lower pressing plate;
the lifting plate lifts the soldering lug on the material rack upwards to enable the soldering lug part at the topmost end on the material rack to be cut into the material slot;
the upper pressing plate horizontally moves for a second set distance;
the suction nozzle adsorbs the soldering lug positioned at the topmost end on the material rack, and the air blowing hole blows air;
and the upper pressing plate moves upwards for a third set distance and then moves horizontally to the position above the material placing table, and the upper pressing plate moves downwards and places the soldering lug on the material placing table.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110931850.3A CN113716370A (en) | 2021-08-13 | 2021-08-13 | Soldering lug distributing mechanism and distributing method |
| PCT/CN2021/142905 WO2022111737A2 (en) | 2021-08-13 | 2021-12-30 | Welding strip material separating mechanism and material separating method |
| ZA2022/01798A ZA202201798B (en) | 2021-08-13 | 2022-02-10 | Mechanism and method for separating welding lugs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110931850.3A CN113716370A (en) | 2021-08-13 | 2021-08-13 | Soldering lug distributing mechanism and distributing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113716370A true CN113716370A (en) | 2021-11-30 |
Family
ID=78675821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110931850.3A Pending CN113716370A (en) | 2021-08-13 | 2021-08-13 | Soldering lug distributing mechanism and distributing method |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN113716370A (en) |
| WO (1) | WO2022111737A2 (en) |
| ZA (1) | ZA202201798B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113997001A (en) * | 2021-12-29 | 2022-02-01 | 杭州泰尚智能装备有限公司 | Mounting device and mounting method for special-shaped joint pressing plate |
| WO2022111737A3 (en) * | 2021-08-13 | 2022-07-07 | 杭州泰尚智能装备有限公司 | Welding strip material separating mechanism and material separating method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101870415A (en) * | 2010-07-22 | 2010-10-27 | 吴双利 | Method for separating and picking up flat lenses and device thereof |
| CN205927274U (en) * | 2016-08-22 | 2017-02-08 | 上海恒力锻压机床有限公司 | Planing knife frame with go up and down and rotation function |
| CN208648244U (en) * | 2018-07-12 | 2019-03-26 | 东莞市逸昌自动化设备科技有限公司 | A kind of air blowing material fetching mechanism |
| CN110394404A (en) * | 2019-07-30 | 2019-11-01 | 赵旭锋 | A kind of feed mechanism |
| CN112494799A (en) * | 2021-02-04 | 2021-03-16 | 山东元旭光电股份有限公司 | Hydrogel slide automatic feeding and mounting device |
| CN113086688A (en) * | 2021-05-21 | 2021-07-09 | 诺斯贝尔化妆品股份有限公司 | Facial mask automatic feeding device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB695130A (en) * | 1950-10-05 | 1953-08-05 | Steel Co Of Wales Ltd | Improvements in or relating to devices for separating sheets from piles |
| CN207482946U (en) * | 2017-07-12 | 2018-06-12 | 杭州安费诺飞凤通信部品有限公司 | A kind of diaphragm separating mechanism |
| CN210366091U (en) * | 2019-08-23 | 2020-04-21 | 广东翠峰机器人科技股份有限公司 | Sheet material distributing mechanism |
| CN110844640B (en) * | 2019-11-28 | 2024-03-05 | 广东三姆森科技股份有限公司 | Stacking and staggered-separating feeding device |
| CN211895249U (en) * | 2019-12-23 | 2020-11-10 | 昆山阿普顿自动化系统有限公司 | Automatic diaphragm feeding device |
| CN113716370A (en) * | 2021-08-13 | 2021-11-30 | 杭州徐睿机械有限公司 | Soldering lug distributing mechanism and distributing method |
-
2021
- 2021-08-13 CN CN202110931850.3A patent/CN113716370A/en active Pending
- 2021-12-30 WO PCT/CN2021/142905 patent/WO2022111737A2/en unknown
-
2022
- 2022-02-10 ZA ZA2022/01798A patent/ZA202201798B/en unknown
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101870415A (en) * | 2010-07-22 | 2010-10-27 | 吴双利 | Method for separating and picking up flat lenses and device thereof |
| CN205927274U (en) * | 2016-08-22 | 2017-02-08 | 上海恒力锻压机床有限公司 | Planing knife frame with go up and down and rotation function |
| CN208648244U (en) * | 2018-07-12 | 2019-03-26 | 东莞市逸昌自动化设备科技有限公司 | A kind of air blowing material fetching mechanism |
| CN110394404A (en) * | 2019-07-30 | 2019-11-01 | 赵旭锋 | A kind of feed mechanism |
| CN112494799A (en) * | 2021-02-04 | 2021-03-16 | 山东元旭光电股份有限公司 | Hydrogel slide automatic feeding and mounting device |
| CN113086688A (en) * | 2021-05-21 | 2021-07-09 | 诺斯贝尔化妆品股份有限公司 | Facial mask automatic feeding device |
Non-Patent Citations (1)
| Title |
|---|
| 王金萍: "物流设施与设备", 东北财经大学出版社, pages: 141 - 142 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022111737A3 (en) * | 2021-08-13 | 2022-07-07 | 杭州泰尚智能装备有限公司 | Welding strip material separating mechanism and material separating method |
| CN113997001A (en) * | 2021-12-29 | 2022-02-01 | 杭州泰尚智能装备有限公司 | Mounting device and mounting method for special-shaped joint pressing plate |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA202201798B (en) | 2022-08-31 |
| WO2022111737A2 (en) | 2022-06-02 |
| WO2022111737A3 (en) | 2022-07-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113716370A (en) | Soldering lug distributing mechanism and distributing method | |
| CN111731924B (en) | Adhesive tape sticking device | |
| CN102189320A (en) | Automatic spot welding system | |
| CN106807594B (en) | All-round glue kludge that glues of sheet sleeve product | |
| CN112474189A (en) | Device for automatically dispensing and mounting magnet on earphone charging box | |
| CN108493137B (en) | Chip taking machine | |
| CN210166596U (en) | Automatic LCD glass combination machine | |
| CN109703855B (en) | Label attaching device | |
| CN108860777B (en) | Cylindrical cell film sleeving machine and processing method thereof | |
| CN217768394U (en) | Stitch welding and film pasting all-in-one machine | |
| CN106961785B (en) | Full-automatic punching laminating machine for FPC reinforcing plate | |
| CN215787535U (en) | Single laser duplex position pipe cutting machine | |
| CN109821696B (en) | Hot press unit is glued to integral type point | |
| CN103021917A (en) | Material system | |
| CN112192630A (en) | Rubber sealing strip cutting and feeding device and method | |
| CN210192057U (en) | Label attaching device | |
| CN111806763A (en) | Circuit substrate film pasting equipment and film pasting method | |
| CN117352767B (en) | Flexible adjustment mechanism of snakelike runner board and flow cell snakelike runner assembly systems | |
| CN220093177U (en) | Welding strip cutting device and welding strip arrangement system | |
| CN216127772U (en) | Automatic film sticking equipment for nixie tube | |
| CN217655702U (en) | Rotatable busbar feeding and clamping device | |
| CN112139705B (en) | Welding feeding and conveying device for automatic production of heating disc of electric water heater | |
| CN219336706U (en) | Skeleton PIN needle kludge | |
| CN219066779U (en) | Wafer gold tearing device | |
| CN217011321U (en) | PIN rubberizing all-in-one in drilling |
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 |