CN114932219B - Forming process and device for extrusion rolling of powder - Google Patents
Forming process and device for extrusion rolling of powder Download PDFInfo
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- CN114932219B CN114932219B CN202210544898.3A CN202210544898A CN114932219B CN 114932219 B CN114932219 B CN 114932219B CN 202210544898 A CN202210544898 A CN 202210544898A CN 114932219 B CN114932219 B CN 114932219B
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- 239000000843 powder Substances 0.000 title claims abstract description 122
- 238000005096 rolling process Methods 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 31
- 230000008569 process Effects 0.000 title claims abstract description 29
- 238000001125 extrusion Methods 0.000 title claims abstract description 24
- 238000003825 pressing Methods 0.000 claims abstract description 24
- 238000000465 moulding Methods 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 9
- 238000013461 design Methods 0.000 claims abstract description 5
- 238000004140 cleaning Methods 0.000 claims description 50
- 239000007921 spray Substances 0.000 claims description 34
- 238000012545 processing Methods 0.000 claims description 24
- 230000008859 change Effects 0.000 claims description 11
- 238000009704 powder extrusion Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 238000004663 powder metallurgy Methods 0.000 abstract description 3
- 239000012535 impurity Substances 0.000 description 15
- 238000004519 manufacturing process Methods 0.000 description 8
- 230000009471 action Effects 0.000 description 7
- 239000000428 dust Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000011084 recovery Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009703 powder rolling Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/003—Apparatus, e.g. furnaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/004—Filling molds with powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/18—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by using pressure rollers
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention belongs to the field of powder metallurgy, in particular to a molding process and a molding device for extrusion rolling by using powder, wherein the molding process comprises a machine body, a first roller and a second roller; a workbench is fixedly connected inside the machine body; the inside of the workbench is rotationally connected with a first roller and a second roller; a blanking groove is formed in the top surface of the workbench at a position between the first roller and the second roller; the top surface of the workbench is rotationally connected with a feeding block at a position close to the blanking groove; a feeding cavity is formed in the bottom surface of the feeding block; the inside of the feeding cavity is connected with a pressing plate in a sliding manner; the surface of the pressing plate is fixedly connected with a material guide pipe; by the design of the invention, the powder is always in a pressed state, so that the problem that the powder cannot be continuously fed in the later feeding period is avoided, the pressure of the powder for naturally feeding downwards is changed, the rolling forming quality is affected, and meanwhile, the powder is accumulated at the top of a feeding groove and the problem that continuous feeding cannot be realized is also solved.
Description
Technical Field
The invention belongs to the field of powder metallurgy, and particularly relates to a molding process and a molding device for extrusion rolling by using powder.
Background
Powder extrusion roll forming is a powder metallurgy process in which metal powder is passed through a series of rolling processes to produce continuous sheet and strip materials. Depending on the rolling position, the rolling can be roughly classified into: the rolling mechanism of the metal powder is different from the traditional compact rolling mechanism, and is suitable for the condition that the powder quality is unchanged before and after powder rolling.
According to the preparation method disclosed by the invention, according to the publication No. CN110722164B, bonding powder is covered on the surface of a roller to be in a saturated state, so that the surface friction force of the roller is improved and the stable state is maintained, thereby improving the stability of the biting capacity of the roller to the fed bonding powder in the rolling process, improving the uniformity of the thickness and the void ratio of the large-size powder rolled metal porous plate and meeting the requirements in industrial production.
In the prior art, through arranging powder in the funnel, extrude the powder in the funnel through two rolls of funnel bottom for after the powder passes through two rolls, can become porous or dense plate structure, in roll forming process, need guarantee the continuity of feed and the maintenance stability of feed pressure, at the feed later stage, the powder in the funnel reduces, and feed pressure can change, and then can lead to the board compactness after the shaping to change, and then influences panel fashioned quality.
To this end, the invention provides a molding process using powder extrusion rolling and an apparatus therefor.
Disclosure of Invention
In order to overcome the deficiencies of the prior art, at least one technical problem presented in the background art is solved.
The technical scheme adopted for solving the technical problems is as follows: the invention relates to a molding device for extrusion rolling by powder, which comprises a machine body, a first roller and a second roller; a workbench is fixedly connected inside the machine body; the inside of the workbench is rotationally connected with a first roller and a second roller; a blanking groove is formed in the top surface of the workbench at a position between the first roller and the second roller; the top surface of the workbench is rotationally connected with a feeding block at a position close to the blanking groove; the first motor is fixedly connected to the inside of the workbench, and an output shaft of the first motor is fixedly connected with the bottom surface of the feeding block; a feeding cavity is formed in the bottom surface of the feeding block; the inside of the feeding cavity is connected with a pressing plate in a sliding manner; the pressing plate is fixedly connected with a first telescopic rod at the inner top surface of the feeding cavity; the surface of the pressing plate is fixedly connected with a material guide pipe; during operation, in the prior art, through placing powder in the funnel, extrude the powder in the funnel through two rolls of funnel bottom, make the powder can become porous or dense plate structure after passing through two rolls, in the roll forming process, need guarantee the continuity of feed and the maintenance stability of feed pressure, in the feed later stage, the powder in the funnel reduces, feed pressure can change, and then can lead to the board compactness after the shaping to change, and then influence panel fashioned quality, when needing rolling production, first motor rotation is controlled at first, first motor can drive the feed piece and rotate, make the feed piece be located the top position of silo down, control the baffle pipe is opened, make the inside of powder introduction feed chamber, the inside of silo down is led to the powder through the feed chamber, simultaneously through control first roll and second roll rotation, roll forming to the powder, in the process of roll forming, through control first telescopic link, first telescopic link can drive the clamp plate and push down, the powder, and then can lead to the powder to the pressure of powder for the feed keeps unchanged, and then the quality of roll forming has been guaranteed, and the quality of the invention, the powder is in the design is in the state of being pushed down all the time, can be in the time, the problem of the continuous change has been avoided, the powder has been rolled down, the problem is simultaneously produced down in the quality of the silo down, can's change, and can't take place the quality is simultaneously down in the continuous quality.
Preferably, a guide groove is formed in the feeding cavity; an electric sliding block is connected inside the guide groove in a sliding way; an elastic groove is formed in the feeding cavity; an elastic sheet is arranged between the elastic groove and the electric sliding block; during operation, after the abnormal rolling forming is observed by an operator, the first telescopic rod is controlled to shrink, the first telescopic rod can drive the pressing plate to move upwards, meanwhile, the electric sliding block is controlled to slide, the powder in the position, close to the bottom, of the feeding cavity is pushed to move upwards in the sliding process of the electric sliding block, finally, the electric sliding block and the elastic sheet separate the inside of the feeding cavity, redundant powder is located at the top of the elastic sheet, the problem that the powder in the feeding cavity is continuously downward and is rolled is avoided, the powder waste is reduced, continuous rolling forming of residual powder in the blanking groove is ensured, the template with problems in the testing process is still partially continuously rolled and formed, and the staff can take out the template conveniently.
Preferably, the inner side surface of the elastic groove is fixedly connected with uniformly arranged convex blocks; the surface of the elastic sheet is fixedly connected with a stop block; the surface of the electric sliding block is provided with a vibration groove; the inside of the vibration groove is connected with a vibration block in a sliding manner; a spring is fixedly connected between the vibration block and the inner side wall of the vibration groove; an elastic sheet is fixedly connected between the vibration block and the inner top surface of the elastic groove; during operation, after the staff debugs forming device, test-making in-process is carried out once more, through controlling electronic slider slip and reset, electronic slider can drive the elastic slice elasticity shrink, and then the dog on elastic slice surface can extrude with the lug that evenly arranges, when the extrusion force is too big, the dog can pass through corresponding lug and quick travel, and then make the vibrations piece extrude the spring repeatedly and remove, the even whereabouts of powder of electronic slider and elastic slice top position has been promoted to the inside of leading-in silo reduces powder local accumulation problem.
Preferably, the bottom surface of the electric sliding block is fixedly connected with a pushing block; a rotating groove is formed in the bottom surface of the pushing block; the inside of the rotating groove is rotationally connected with a roller; during operation, link firmly the ejector pad through the bottom surface at electric slider, rotate through the bottom surface of ejector pad and connect the roller, the roller can promote unnecessary powder and upwards move, and the roller can extrude the powder that is located the silo notch position down simultaneously, cooperates the vibrations effect of vibrations piece, promotes the normal unloading of the unnecessary powder of feed opening.
Preferably, the stop block is of a saccular structure design; the side surface of the feeding block is provided with a mounting groove; the cleaning box is arranged in the mounting groove, and the cleaning box is communicated with the inside of the stop block through a connecting pipe; an air inlet pipe is arranged between the cleaning box and the interior of the feeding cavity; an air outlet pipe is arranged on the side surface of one side, which is away from the electric sliding block, of the cleaning box; the inside of the air inlet pipe and the inside of the air outlet pipe are fixedly connected with one-way valves; a filter screen is fixedly connected inside the cleaning box; during operation, when the elastic sheet receives tensile, the elastic block can drive the dog motion, the dog receives the extrusion of different position lug, can make the dog shrink deformation repeatedly, when the dog stops receiving the extrusion, under the self elastic action of dog, the dog can automatic recovery, when the dog receives the extrusion shrink, the inside of clearance box can be extruded to the inside of clearance box to the inside gaseous, the inside pressure increase of clearance box, and then the inside gaseous one-way outflow of outlet duct can pass through to clearance box, when the dog elastic recovery, the inside gaseous inside of clearance box can be through the inside of connecting pipe leading-in dog, the inside atmospheric pressure of clearance box reduces this moment, the inside gaseous can be through the single guide of intake pipe leading-in clearance box of feed chamber, promote the collection to unnecessary powder in the feed chamber, avoid the powder to receive the influence of surrounding wind power and lift up, when the inside gaseous leading-in clearance box of feed chamber, the powder that part is not cleared up also can be along with this gaseous leading-in clearance box, and be intercepted down, collect in the inside of collecting box, when the trough down is changeed to the feed block, avoid the trough to appear a large amount of powder problem.
Preferably, the top surface of the workbench is rotationally connected with a processing block at a position close to the blanking groove; the second motor is fixedly connected inside the workbench, and an output shaft of the second motor is fixedly connected with the bottom surface of the processing block; when the rotary feeding device is in operation, after the primary production is completed, the first motor is controlled to rotate, the first motor can drive the feeding block to rotate away from the blanking groove, then the second motor is controlled to rotate, the second motor can drive the processing block to rotate, the processing block rotates to the blanking groove, powder remained on the surface of the workbench can be completely cleaned through the rotating block, and the workbench is kept in a clean state in a non-working state.
Preferably, a moving groove is formed in the bottom surface of the processing block; a moving block is connected in the moving groove in a sliding manner; the inner top surface of the moving groove is fixedly connected with a second telescopic rod, and a piston rod of the second telescopic rod is fixedly connected with the top surface of the moving block; a cleaning groove is formed in the bottom surface of the moving block; a spray head is arranged on the inner top surface of the cleaning groove, and is externally connected with an air source; the inner side surface of the moving block is connected with an air duct which is externally connected with a negative pressure source; during operation, when the processing piece rotates the top position of baffle box, flexible through control second telescopic link, the second telescopic link can drive the movable block and remove for the movable block removes the bottom surface of workstation, and shutoff down the top notch of silo, through external air supply of control and negative pressure source, make the continuous blowout gas of shower nozzle, shower nozzle spun gas can promote the surface of workstation, down the inside of silo, the dust on first roll and second roll surface drop and raise, the rethread air duct is derived, realizes the automatic clearance to the inside of silo down.
Preferably, a rotating groove is formed in the inner top surface of the cleaning groove; a turntable is rotatably connected in the rotary groove; the bottom surface of the turntable is fixedly connected with evenly arranged spray heads at the side surface position close to the turntable, and spray holes of the spray heads are obliquely arranged downwards; the top surface of the moving block is fixedly connected with a guide pipe, the guide pipe is used for communicating an air source with the rotary groove, and the spray heads are communicated with the rotary groove; when the gas is sprayed out through the spray head on the surface of the rotary table, the spray head is inclined, so that the rotary table rotates under the action of reverse thrust of the gas, the rotary table rotates to enable the spray head to rotate for spraying gas, and the cleaning effect of the push workbench and the inner part of the blanking groove is improved.
Preferably, the position of the inner side surface of the cleaning groove, which is close to the bottom surface of the cleaning groove, is designed into an inclined surface structure; the bottom surface of the air duct is fixedly connected with a branch pipe, the branch pipe is used for communicating the air duct with the inside of the cleaning groove, and the opening of the branch pipe is positioned at the inclined surface position of the inside of the cleaning groove; during operation, through setting up inclined plane structure in the bottom surface position of clearance groove, when the processing piece rotates, the processing piece can drive the movable block and rotate, and then clear up the impurity such as powder caking on workstation surface's adhesion thing or greasy dirt through the inclined plane structure on movable block surface, through setting up the branch pipe, when the impurity that is cleared up down is located the inclined plane of clearance tank bottom surface position, can in time adsorb impurity and derive through the branch pipe, because the impurity of caking is heavier relatively, can't raise smoothly, through the branch pipe for impurity can derive completely.
A molding process for extrusion rolling with powder, which adopts the molding device for extrusion rolling with powder, and comprises the following steps:
s1: firstly, controlling a first motor to rotate, wherein the first motor can drive a feeding block to rotate, so that the feeding block is positioned at the top of a blanking groove;
s2: controlling the opening of the material guide pipe to lead powder into the feeding cavity, leading the powder into the blanking groove through the feeding cavity, and simultaneously controlling the rotation of the first roller and the second roller to roll and shape the powder;
s3: in the process of rolling forming, the first telescopic rod is controlled to push out, the first telescopic rod can drive the pressing plate to push down, the pressing plate can squeeze powder, the pressure of the powder for feeding is kept unchanged, and then the forming plate with stable rolling forming quality is obtained.
The beneficial effects of the invention are as follows:
1. according to the molding process and the molding device for extrusion rolling of the powder, the machine body, the first roller and the second roller are arranged, the workbench is arranged in the machine body, the top of the workbench is rotationally connected with the feeding block, the pressing plate is arranged in the feeding block, the powder is always in a pressed state in the feeding process, the later period of feeding is avoided, the powder quantity is changed, the natural downward feeding pressure of the powder is changed, the rolling molding quality is affected, meanwhile, the problem that the powder is accumulated at the top of the blanking groove and cannot be continuously blanked is also reduced.
2. According to the forming process and the forming device for extrusion rolling by using the powder, the processing block, the second telescopic rod and the spray head are arranged, when the processing block rotates to the top position of the guide chute, the second telescopic rod is controlled to stretch, the second telescopic rod drives the moving block to move, the moving block moves to the bottom surface of the workbench, the top notch of the discharge chute is plugged, the spray head continuously sprays gas by controlling the external gas source and the negative pressure source, the gas sprayed by the spray head can promote dust on the surface of the workbench, the inside of the discharge chute, the first roller and the surface of the second roller to drop and lift, and then the dust is guided out through the air guide pipe, so that the inside of the discharge chute is automatically cleaned.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a cross-sectional view of the present invention;
FIG. 4 is a schematic view of the structure of the feed block of the present invention;
FIG. 5 is a first schematic block diagram of a processing block of the present invention;
FIG. 6 is a second schematic diagram of a processing block of the present invention;
FIG. 7 is a process flow diagram of the present invention;
in the figure: the machine body 1, a first roller 2, a second roller 3, a workbench 4, a blanking groove 5, a feeding block 6, a first motor 7, a feeding cavity 8, a pressing plate 9, a first telescopic rod 10, a material guiding pipe 11, an electric sliding block 12, an elastic piece 13, a convex block 14, a stop block 15, a vibration block 16, a spring 17, a pushing block 18, a roller 19, a cleaning box 20, an air inlet pipe 21, an air outlet pipe 22, a filter screen 23, a processing block 24, a second motor 25, a moving block 26, a second telescopic rod 27, an air guide pipe 28, a rotary disc 29, a guide pipe 30 and a branch pipe 31.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Example 1
As shown in fig. 1 to 4, a molding device for extrusion rolling with powder according to an embodiment of the present invention includes a machine body 1, a first roll 2, and a second roll 3; a workbench 4 is fixedly connected inside the machine body 1; the inside of the workbench 4 is rotatably connected with a first roller 2 and a second roller 3; a blanking groove 5 is formed in the top surface of the workbench 4 at a position between the first roller 2 and the second roller 3; the top surface of the workbench 4 is rotationally connected with a feeding block 6 at a position close to the blanking groove 5; the inside of the workbench 4 is fixedly connected with a first motor 7, and an output shaft of the first motor 7 is fixedly connected with the bottom surface of the feeding block 6; a feeding cavity 8 is formed in the bottom surface of the feeding block 6; the inside of the feeding cavity 8 is connected with a pressing plate 9 in a sliding manner; the pressing plate 9 is fixedly connected with a first telescopic rod 10 at the inner top surface of the feeding cavity 8; the surface of the pressing plate 9 is fixedly connected with a material guide pipe 11; during operation, in the prior art, through placing powder in the funnel, extrude the powder in the funnel through two rolls of funnel bottom, make the powder pass through two rolls after, can become porous or dense plate structure, in the roll forming process, need guarantee the continuity of feed and the maintenance stability of feed pressure, in the feed later stage, the powder in the funnel reduces, feed pressure can change, and then can lead to the board compactness after the shaping to change, and then influence panel fashioned quality, when needing rolling production, first motor 7 is controlled at first to rotate, first motor 7 can drive feed piece 6 to rotate, make feed piece 6 be located the top position of silo 5, control baffle 11 opens, make the inside of powder introduction feed chamber 8, guide the powder into the inside of silo 5 through feed chamber 8, simultaneously through control first roll 2 and second roll 3 rotate, roll forming to the powder, in the course of carrying out the roll forming, through control first telescopic link 10 ejecting, first telescopic link 10 can drive clamp plate 9 and push down, clamp plate 9 can extrude the powder, make the powder for the pressure keeps the pressure not guarantee, the quality of powder, the invention is in the silo is guaranteed to the pressure is not, the change, the invention is in the silo is realized, the continuous quality is guaranteed to the silo is realized, the powder is guaranteed down, the quality is guaranteed down, the problem is constantly is rolled down, can be rolled down, the quality is changed, the problem is realized down, and can be rolled down, the quality is guaranteed down is under the quality is simultaneously, and is reduced, the quality is under the quality is continuously, and is not changed, and is roll quality is roll 5.
As shown in fig. 4, a guide groove is formed in the feeding cavity 8; an electric sliding block 12 is connected inside the guide groove in a sliding way; an elastic groove is formed in the feeding cavity 8; an elastic sheet 13 is arranged between the elastic groove and the electric sliding block 12; during operation, after the abnormal rolling forming is observed by an operator, the first telescopic rod 10 is controlled to shrink, the first telescopic rod 10 can drive the pressing plate 9 to move upwards, meanwhile, the electric sliding block 12 is controlled to slide, powder in the position, close to the bottom, of the feeding cavity 8 is pushed to move upwards in the sliding process of the electric sliding block 12, finally, the inside of the feeding cavity 8 is separated through the electric sliding block 12 and the elastic sheet 13, redundant powder is located at the top position of the elastic sheet 13, continuous downward powder in the feeding cavity 8 is prevented from being rolled, the problem of powder waste is reduced, continuous rolling forming of the residual powder in the feeding groove 5 is guaranteed, a template with problems in the testing process is still partially formed, and the operator can take out the template conveniently.
The inner side surface of the elastic groove is fixedly connected with evenly arranged convex blocks 14; the surface of the elastic sheet 13 is fixedly connected with a stop block 15; a vibration groove is formed in the surface of the electric sliding block 12; the inside of the vibration groove is connected with a vibration block 16 in a sliding manner; a spring 17 is fixedly connected between the vibration block 16 and the inner side wall of the vibration groove; an elastic sheet 13 is fixedly connected between the vibration block 16 and the inner top surface of the elastic groove; during operation, after the staff debugs forming device, carry out the trial production in-process once more, through control electronic slider 12 slip reset, electronic slider 12 can drive elastic sheet 13 elasticity shrink, and then the dog 15 on elastic sheet 13 surface can extrude with the lug 14 of evenly arranging, when the extrusion force is too big, dog 15 can pass through corresponding lug 14 and quick travel, and then make vibrations piece 16 extrude spring 17 and remove repeatedly, the even whereabouts of powder of electronic slider 12 and elastic sheet 13 top position has been promoted, and the inside of leading-in silo 5, reduce powder local accumulation problem.
The bottom surface of the electric sliding block 12 is fixedly connected with a push block 18; a rotating groove is formed in the bottom surface of the push block 18; the inside of the rotating groove is rotatably connected with a roller 19; during operation, through link firmly ejector pad 18 in the bottom surface of electronic slider 12, rotate through the bottom surface of ejector pad 18 and connect roller 19, roller 19 can promote unnecessary powder and upwards remove, and roller 19 can extrude the powder that is located the silo 5 notch position down simultaneously, cooperates the vibrations effect of vibrations piece 16, promotes the normal unloading of the unnecessary powder of feed opening.
The stop block 15 is of a saccular structure design; the side surface of the feeding block 6 is provided with a mounting groove; the cleaning box 20 is arranged in the mounting groove, and the cleaning box 20 is communicated with the inside of the stop block 15 through a connecting pipe; an air inlet pipe 21 is arranged between the cleaning box 20 and the interior of the feeding cavity 8; an air outlet pipe 22 is arranged on the side surface of one side of the cleaning box 20, which is away from the electric sliding block 12; the inside of the air inlet pipe 21 and the inside of the air outlet pipe 22 are fixedly connected with one-way valves; a filter screen 23 is fixedly connected to the inside of the cleaning box 20; during operation, when elastic piece 13 receives tensile, the elastic block can drive dog 15 motion, dog 15 receives the extrusion of different position lug 14, can make dog 15 shrink deformation repeatedly, when dog 15 stops receiving extrusion, under the self elastic action of dog 15, dog 15 can automatic recovery, when dog 15 receives extrusion shrink, the inside of clearance box 20 can be extruded to the inside of gas in dog 15, the inside pressure increase of clearance box 20, and then the inside gas of clearance box 20 can flow through outlet duct 22 one-way, when dog 15 elastic recovery, the inside gas of clearance box 20 can be introduced into the inside of dog 15 through the connecting pipe, the inside atmospheric pressure of clearance box 20 reduces this moment, the inside gas of feed chamber 8 can be through intake pipe 21 one-way guide clearance box 20, promote the collection to the inside unnecessary powder of feed chamber 8, avoid the powder to receive the influence of surrounding wind and lift up, influence staff's inside gas guide box 20, the inside powder of feed chamber 8 also can be followed this gas guide box 20, and by 23 interception get off, collect inside the clearance box, when leaving the trough 5 under the circumstances of change of trough 5, the big problem of the mouth of trough appearance is avoided.
As shown in fig. 2 and 5, a processing block 24 is rotatably connected to the top surface of the workbench 4 near the position of the blanking groove 5; the second motor 25 is fixedly connected inside the workbench 4, and an output shaft of the second motor 25 is fixedly connected with the bottom surface of the processing block 24; after the work, accomplish the one time production, through control first motor 7 rotation, first motor 7 can drive feeding piece 6 and rotate and leave silo 5 down, then rethread control second motor 25 rotates, and second motor 25 can drive the processing piece 24 and rotate for processing piece 24 rotates silo 5 positions down, can clear up the remaining powder in workstation 4 surface completely through the rotating piece, makes workstation 4 under non-operating condition, keeps clean state.
As shown in fig. 5, a moving slot is formed on the bottom surface of the processing block 24; a moving block 26 is connected inside the moving groove in a sliding manner; the inner top surface of the moving groove is fixedly connected with a second telescopic rod 27, and a piston rod of the second telescopic rod 27 is fixedly connected with the top surface of the moving block 26; a cleaning groove is formed in the bottom surface of the moving block 26; a spray head is arranged on the inner top surface of the cleaning groove, and is externally connected with an air source; the inner side surface of the moving block 26 is connected with an air duct 28, and the air duct 28 is externally connected with a negative pressure source; when the processing block 24 rotates to the top position of the guide chute, the second telescopic rod 27 is controlled to stretch, the second telescopic rod 27 can drive the moving block 26 to move, the moving block 26 moves to the bottom surface of the workbench 4, the top notch of the blanking chute 5 is blocked, the spray head continuously sprays gas by controlling an external gas source and a negative pressure source, the spray head sprays gas can promote the surface of the workbench 4, the inside of the blanking chute 5, dust on the surfaces of the first roller 2 and the second roller 3 to fall and lift, and the dust is guided out through the gas guide pipe 28, so that the inside of the blanking chute 5 is automatically cleaned.
As shown in fig. 5, a rotating groove is formed in the inner top surface of the cleaning groove; a turntable 29 is rotatably connected to the inside of the rotary groove; the bottom surface of the turntable 29 is fixedly connected with evenly arranged spray heads at the side surface position close to the turntable 29, and spray holes of the spray heads are obliquely arranged downwards; the top surface of the moving block 26 is fixedly connected with a guide pipe 30, the guide pipe 30 is used for communicating an air source with the rotary groove, and the spray heads are communicated with the rotary groove; when the gas is sprayed out through the spray heads on the surface of the rotary table 29, the inclined arrangement state of the spray heads can enable the rotary table 29 to rotate under the action of reverse thrust of the gas, the rotary table 29 rotates to enable the spray heads to rotate for spraying gas, and the cleaning effect inside the pushing workbench 4 and the blanking groove 5 is improved.
Example two
As shown in fig. 6, in comparative example one, another embodiment of the present invention is: the inner side surface of the cleaning groove is close to the bottom surface of the cleaning groove and is designed into an inclined surface structure; the bottom surface of the air duct 28 is fixedly connected with a branch pipe 31, the branch pipe 31 communicates the air duct 28 with the inside of the cleaning groove, and the opening of the branch pipe 31 is positioned at the inclined surface position of the inside of the cleaning groove; during operation, through setting up the inclined plane structure in the bottom surface position of clearance groove, when handling the piece 24 and rotate, handling the piece 24 and can drive the movable block 26 and rotate, and then clear up the impurity such as powder caking on workstation 4 surface's adhesion thing or greasy dirt through the inclined plane structure on movable block 26 surface, through setting up branch pipe 31, when the impurity that is cleared up is located the inclined plane of clearance tank bottom surface position, can in time adsorb the impurity and derive through branch pipe 31, because the impurity of caking is heavier relatively, can't raise smoothly, through branch pipe 31 for the impurity can derive completely.
As shown in fig. 7, a molding process of extrusion rolling with powder, which employs the above-mentioned molding apparatus of extrusion rolling with powder, comprises the steps of:
s1: firstly, controlling a first motor 7 to rotate, wherein the first motor 7 can drive a feeding block 6 to rotate, so that the feeding block 6 is positioned at the top of a blanking groove 5;
s2: the material guiding pipe 11 is controlled to be opened, so that powder is guided into the feeding cavity 8, the powder is guided into the blanking groove 5 through the feeding cavity 8, and meanwhile, the first roller 2 and the second roller 3 are controlled to rotate, so that the powder is subjected to rolling forming;
s3: in the process of roll forming, the first telescopic rod 10 is controlled to push out, the first telescopic rod 10 can drive the pressing plate 9 to push down, the pressing plate 9 can squeeze powder, the pressure of the powder for feeding is kept unchanged, and then the forming plate with stable roll forming quality is obtained.
When the rolling production is needed, the first motor 7 is controlled to rotate firstly, the first motor 7 can drive the feeding block 6 to rotate, the feeding block 6 is positioned at the top of the blanking groove 5, the guide pipe 11 is controlled to be opened, powder is led into the feeding cavity 8, the powder is led into the blanking groove 5 through the feeding cavity 8, meanwhile, the first roller 2 and the second roller 3 are controlled to rotate, the powder is subjected to rolling forming, in the rolling forming process, the first telescopic rod 10 is controlled to eject, the first telescopic rod 10 can drive the pressing plate 9 to press down, the pressing plate 9 can squeeze the powder, so that the pressure of the powder for feeding is kept unchanged, and the rolling forming quality is further ensured; firstly, the first telescopic rod 10 is controlled to shrink, the first telescopic rod 10 can drive the pressing plate 9 to move upwards, meanwhile, the electric sliding block 12 is controlled to slide, powder close to the bottom position of the feeding cavity 8 is pushed to move upwards in the sliding process of the electric sliding block 12, finally, the inside of the feeding cavity 8 is separated through the electric sliding block 12 and the elastic sheet 13, so that redundant powder is completely positioned at the top position of the elastic sheet 13, the powder inside the feeding cavity 8 is prevented from continuously downwards rolling, the problem of powder waste is reduced, meanwhile, the fact that residual powder in the blanking groove 5 is continuously rolled and molded is guaranteed, a template with problems in the test process is still partially continuously rolled and molded, and workers can conveniently take out the template; after the forming device is debugged by a worker, in the trial production process again, the electric sliding block 12 is controlled to slide and reset, the electric sliding block 12 drives the elastic sheet 13 to elastically shrink, the stop block 15 on the surface of the elastic sheet 13 is extruded with the uniformly arranged convex blocks 14, when the extrusion force is overlarge, the stop block 15 passes through the corresponding convex blocks 14 and moves rapidly, the vibration block 16 repeatedly extrudes the spring 17 and moves, powder at the top positions of the electric sliding block 12 and the elastic sheet 13 is promoted to uniformly fall and is guided into the blanking groove 5, and the problem of local accumulation of powder is reduced; the bottom surface of the electric sliding block 12 is fixedly connected with the push block 18, the bottom surface of the push block 18 is rotationally connected with the roller 19, the roller 19 can push excessive powder to move upwards, meanwhile, the roller 19 can squeeze the powder positioned at the notch of the blanking groove 5, and the normal blanking of the excessive powder at the blanking opening is promoted by matching with the vibration action of the vibration block 16; when the elastic sheet 13 is stretched, the elastic block can drive the stop block 15 to move, the stop block 15 is extruded by the convex blocks 14 at different positions, the stop block 15 can be repeatedly contracted and deformed, when the stop block 15 stops being extruded, the stop block 15 can automatically recover under the elastic action of the stop block 15, when the stop block 15 is extruded and contracted, the gas in the stop block 15 can be extruded into the cleaning box 20, the pressure in the cleaning box 20 is increased, the gas in the cleaning box 20 can flow out unidirectionally through the air outlet pipe 22, when the stop block 15 elastically recovers, the gas in the cleaning box 20 can be led into the stop block 15 through a connecting pipe, at the moment, the air pressure in the cleaning box 20 is reduced, the gas in the feeding cavity 8 can be led into the cleaning box 20 in a single direction through the air inlet pipe 21, the collection of redundant powder in the feeding cavity 8 is promoted, the influence of surrounding wind is avoided, the health of workers is influenced, when the gas in the feeding cavity 8 is led into the cleaning box 20, part of uncleaned powder can be led into the cleaning box 20 along with the gas, and is intercepted by 23, the gas in the cleaning box 20 is collected in the cleaning box, the air is led into the cleaning box through the cleaning box 5, and the problem of a large quantity of a trough 5 is avoided when the powder is separated from the trough 5; after the primary production is completed, the first motor 7 is controlled to rotate, the first motor 7 drives the feeding block 6 to rotate away from the discharging groove 5, then the second motor 25 is controlled to rotate, the second motor 25 drives the processing block 24 to rotate, the processing block 24 rotates to the position of the discharging groove 5, and the rotating block can completely clean the powder remained on the surface of the workbench 4, so that the workbench 4 is kept in a clean state in a non-working state; when the processing block 24 rotates to the top position of the guide chute, the second telescopic rod 27 is controlled to stretch, the second telescopic rod 27 drives the moving block 26 to move, so that the moving block 26 moves to the bottom surface of the workbench 4 and plugs the notch at the top of the blanking chute 5, the spray head continuously sprays gas by controlling an external gas source and a negative pressure source, the gas sprayed by the spray head can promote dust on the surface of the workbench 4, the inside of the blanking chute 5 and the surfaces of the first roller 2 and the second roller 3 to drop and lift, and then the dust is guided out through the gas guide pipe 28, so that the inside of the blanking chute 5 is automatically cleaned; when gas is sprayed out through the spray heads on the surface of the rotary table 29, the inclined arrangement state of the spray heads can enable the rotary table 29 to rotate under the action of reverse thrust of the gas, the rotary table 29 rotates to enable the spray heads to rotate for spraying gas, and the cleaning effect of the interiors of the pushing workbench 4 and the blanking groove 5 is improved; through setting up the inclined plane structure in the bottom surface position of clearance groove, when handling the piece 24 and rotate, the piece 24 can drive the movable block 26 and rotate, and then clear up the impurity such as powder caking on workstation 4 surface's adhesion thing or greasy dirt through the inclined plane structure on movable block 26 surface, through setting up branch pipe 31, when the impurity that is cleared up is located the inclined plane of clearance tank bottom surface position, can in time adsorb the impurity and derive through branch pipe 31, because the impurity of caking is heavier relatively, can't raise smoothly, through branch pipe 31 for the impurity can derive completely.
The front, rear, left, right, up and down are all based on fig. 1 in the drawings of the specification, the face of the device facing the observer is defined as front, the left side of the observer is defined as left, and so on, according to the viewing angle of the person.
In the description of the present invention, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A molding device for extrusion rolling of powder, which is characterized in that: comprises a machine body (1), a first roller (2) and a second roller (3); a workbench (4) is fixedly connected inside the machine body (1); the inside of the workbench (4) is rotationally connected with a first roller (2) and a second roller (3); a blanking groove (5) is formed in the position between the first roller (2) and the second roller (3) on the top surface of the workbench (4); the top surface of the workbench (4) is rotationally connected with a feeding block (6) at a position close to the blanking groove (5); the inside of the workbench (4) is fixedly connected with a first motor (7), and an output shaft of the first motor (7) is fixedly connected with the bottom surface of the feeding block (6); a feeding cavity (8) is formed in the bottom surface of the feeding block (6); the inside of the feeding cavity (8) is connected with a pressing plate (9) in a sliding manner; the pressing plate (9) is fixedly connected with a first telescopic rod (10) at the inner top surface of the feeding cavity (8); the surface of the pressing plate (9) is fixedly connected with a material guide pipe (11);
a guide groove is formed in the feeding cavity (8); an electric sliding block (12) is connected in the guide groove in a sliding way; an elastic groove is formed in the feeding cavity (8); an elastic sheet (13) is arranged between the elastic groove and the electric sliding block (12);
the inner side surface of the elastic groove is fixedly connected with evenly arranged convex blocks (14); the surface of the elastic sheet (13) is fixedly connected with a stop block (15); a vibration groove is formed in the surface of the electric sliding block (12); the inside of the vibration groove is connected with a vibration block (16) in a sliding manner; a spring (17) is fixedly connected between the vibration block (16) and the inner side wall of the vibration groove; an elastic sheet (13) is fixedly connected between the vibration block (16) and the inner top surface of the elastic groove;
the bottom surface of the electric sliding block (12) is fixedly connected with a pushing block (18); a rotating groove is formed in the bottom surface of the pushing block (18); a roller (19) is rotatably connected in the rotating groove;
the stop block (15) is of a saccular structure design; the side surface of the feeding block (6) is provided with a mounting groove; a cleaning box (20) is arranged in the mounting groove, and the cleaning box (20) is communicated with the inside of the vibration block (16) through a connecting pipe; an air inlet pipe (21) is arranged between the cleaning box (20) and the interior of the feeding cavity (8); an air outlet pipe (22) is arranged on the side surface of one side of the cleaning box (20) which is away from the electric sliding block (12); the inside of the air inlet pipe (21) and the inside of the air outlet pipe (22) are fixedly connected with one-way valves; the inside of the cleaning box (20) is fixedly connected with a filter screen (23).
2. A powder extrusion rolling molding apparatus as defined in claim 1, wherein: the top surface of the workbench (4) is rotationally connected with a processing block (24) at a position close to the blanking groove (5); the inside of workstation (4) has linked firmly second motor (25), and fixed connection between the output shaft of second motor (25) and the bottom surface of handling piece (24).
3. A powder extrusion-rolling molding apparatus as defined in claim 2, wherein: a moving groove is formed in the bottom surface of the processing block (24); a moving block (26) is connected in the moving groove in a sliding manner; the inner top surface of the moving groove is fixedly connected with a second telescopic rod (27), and a piston rod of the second telescopic rod (27) is fixedly connected with the top surface of the moving block (26); a cleaning groove is formed in the bottom surface of the moving block (26); a spray head is arranged on the inner top surface of the cleaning groove, and is externally connected with an air source; the inner side surface of the moving block (26) is connected with an air duct (28), and the air duct (28) is externally connected with a negative pressure source.
4. A powder extrusion rolling molding apparatus as defined in claim 3, wherein: a rotating groove is formed in the inner top surface of the cleaning groove; a turntable (29) is rotatably connected in the rotary groove; the bottom surface of the turntable (29) is fixedly connected with evenly arranged spray heads at the side surface position close to the turntable (29), and spray holes of the spray heads are obliquely arranged downwards; the top surface of movable block (26) has linked firmly pipe (30), and pipe (30) are with air supply and change groove intercommunication each other, and shower nozzle all is with changeing the groove intercommunication each other.
5. A powder extrusion rolling molding apparatus as defined in claim 4, wherein: the inner side surface of the cleaning groove is close to the bottom surface of the cleaning groove and is designed into an inclined surface structure; the bottom surface of air duct (28) has linked firmly branch pipe (31), and branch pipe (31) are with the inside intercommunication each other of air duct (28) and clearance groove, and the opening of branch pipe (31) is located the inclined plane position of clearance inslot.
6. A molding process for extrusion rolling by using powder is characterized in that: the molding process using the molding device for extrusion rolling of powder according to any one of claims 1 to 5, comprising the steps of:
s1: firstly, controlling a first motor (7) to rotate, wherein the first motor (7) can drive a feeding block (6) to rotate, so that the feeding block (6) is positioned at the top of a discharging groove (5);
s2: the material guiding pipe (11) is controlled to be opened, so that powder is guided into the feeding cavity (8), the powder is guided into the blanking groove (5) through the feeding cavity (8), and meanwhile, the first roller (2) and the second roller (3) are controlled to rotate, so that the powder is subjected to rolling forming;
s3: in the process of rolling forming, the first telescopic rod (10) is controlled to eject, the first telescopic rod (10) can drive the pressing plate (9) to press downwards, the pressing plate (9) can squeeze powder, the pressure of the powder for feeding is kept unchanged, and then the forming plate with stable rolling forming quality is obtained.
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| CN202210544898.3A CN114932219B (en) | 2022-05-19 | 2022-05-19 | Forming process and device for extrusion rolling of powder |
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| CN202210544898.3A CN114932219B (en) | 2022-05-19 | 2022-05-19 | Forming process and device for extrusion rolling of powder |
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| JPH0491897A (en) * | 1990-08-03 | 1992-03-25 | Nippon Steel Corp | Apparatus for pressurize-compacting granular or powdery material |
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| CN210906054U (en) * | 2019-09-04 | 2020-07-03 | 浙江明天机械有限公司 | Dry method granulator feed mechanism |
| CN212419640U (en) * | 2020-05-22 | 2021-01-29 | 中泰民安防爆科技股份有限公司 | Powder rolling machine convenient to control explosion-proof aluminum foil output angle |
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1109798A (en) * | 1965-11-05 | 1968-04-18 | British Iron Steel Research | Formation of metallic strip material |
| JPS6389604A (en) * | 1986-10-01 | 1988-04-20 | Ishikawajima Harima Heavy Ind Co Ltd | Method and device for rolling powder |
| JPH0491897A (en) * | 1990-08-03 | 1992-03-25 | Nippon Steel Corp | Apparatus for pressurize-compacting granular or powdery material |
| JP2000033497A (en) * | 1998-07-15 | 2000-02-02 | Ishikawajima Harima Heavy Ind Co Ltd | Device for producing thick material from powder |
| CN105451979A (en) * | 2013-08-09 | 2016-03-30 | 支楚泰克有限公司 | A method of compaction of a powder and a roller compaction device |
| CN110116204A (en) * | 2019-05-20 | 2019-08-13 | 高爱明 | A kind of reverse pushing-type powder pressure embryo forming device |
| CN210906054U (en) * | 2019-09-04 | 2020-07-03 | 浙江明天机械有限公司 | Dry method granulator feed mechanism |
| CN212419640U (en) * | 2020-05-22 | 2021-01-29 | 中泰民安防爆科技股份有限公司 | Powder rolling machine convenient to control explosion-proof aluminum foil output angle |
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|---|---|
| CN114932219A (en) | 2022-08-23 |
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