CN111469065B - Cutting piece unloader - Google Patents
Cutting piece unloader Download PDFInfo
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- CN111469065B CN111469065B CN202010291919.6A CN202010291919A CN111469065B CN 111469065 B CN111469065 B CN 111469065B CN 202010291919 A CN202010291919 A CN 202010291919A CN 111469065 B CN111469065 B CN 111469065B
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- rack
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- piece
- sliding tray
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
- B24D18/0054—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for by impressing abrasive powder in a matrix
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- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention discloses a cutting blade discharging device which comprises a base, wherein a first stepping motor is arranged at the upper end of the base, supports are symmetrically arranged on the left side and the right side of the upper end of the base, a rotating piece is connected to an output shaft of the first stepping motor in a key mode, a lower grinding mechanism which is connected with the output shaft of the first stepping motor and used for quantitatively and fixedly dropping grinding materials is connected to the supports, the lower grinding mechanism comprises a storage box arranged between the two supports, a square tube communicated with the interior of the storage box is arranged at the front end of the storage box, and a quantitative piece is arranged on the obliquely arranged square tube in a left-right moving mode. The invention has the advantages that: simple structure can circulate and interval underground abrasive material, place netted annular piece, abrasive material down, place the collar, when the rotating member level, will have netted annular piece, collar to fall on big sliding tray, little sliding tray, can ration fall the abrasive material and guarantee that netted annular piece, collar fall the centre in the shaping groove perpendicularly, degree of automation is high, raises the efficiency.
Description
Technical Field
The invention relates to cutting blade processing equipment, in particular to a cutting blade blanking device.
Background
The cutting machine drives the cutting blade to rotate at a high speed, and the cutting blade rubs with the cut object to enable the cut object to be decomposed, so that a cutting task is completed; the existing cutting blade is basically manufactured by putting abrasive materials into a forming groove by a worker, a floating device of the forming groove is used for floating the abrasive materials, then a net-shaped annular blade is added into the forming groove, then the abrasive materials are put into the middle of the forming groove, the floating device of the forming groove is used for floating the abrasive materials, a mounting ring is put into the middle of the forming groove, and finally the mounting ring is extruded and formed by a machine, so that the operation is complex and the abrasive materials cannot be quantitatively ground, and the artificial reason causes the cutting blade to be incapable of efficiently producing and low in efficiency.
Disclosure of Invention
The invention mainly aims to provide a cutting blade blanking device which is simple in structure, can circularly and intermittently place underground grinding materials, mesh annular blades, lower the grinding materials and mount rings, can quantitatively drop the grinding materials, ensures that the mesh annular blades and the mount rings vertically drop to the middle of a forming groove, is high in automation degree and improves efficiency.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: a cutting blade blanking device comprises a base, wherein a first stepping motor is arranged at the upper end of the base, supports are symmetrically arranged on the left side and the right side of the upper end of the base, a rotating piece is connected to an output shaft of the first stepping motor in a key mode, a lower grinding mechanism which is connected with the output shaft of the first stepping motor and used for quantitatively and fixedly dropping grinding materials is connected to the supports, the lower grinding mechanism comprises a storage box arranged between the two supports, a square pipe communicated with the interior of the storage box is arranged at the front end of the storage box, a quantitative piece is obliquely arranged on the square pipe in a left-right moving mode, a first spring is connected between the quantitative piece and the square pipe, a third gear is connected to the output shaft of the first stepping motor in a key mode, a second gear is meshed at the rear end of the third gear, a cam is coaxially connected above the second gear, and the left end of the quantitative piece abuts against the working surface of the cam, the left and right sides of rotating member is equipped with little round hole, big round hole respectively, be equipped with the fixed point mechanism that falls that is used for fixed point to fall down collar, netted annular piece in the rotating member.
Further, the fixed point mechanism of falling establishes including the cover fixed sleeve outside the output shaft of first step motor, fixed sleeve fixes first step motor or on the base, fixed sleeve's upper end key joint has the first gear that the breach was established to the left end, be equipped with in the rotating member with the little spout of little round hole intercommunication, with the big spout of big round hole intercommunication, big spout big sliding tray, little sliding tray are slided respectively in the little spout, big sliding tray little sliding tray towards one side of fixed sleeve is equipped with first rack, second rack respectively, first rack the second rack all with first gear engagement and sliding fit are in the rack inslot of rotating member, first rack the second rack with all be connected with the second spring between the rack groove. The device can firstly carry out first grinding by the lower grinding mechanism, then the first stepping motor drives the rotating piece to rotate anticlockwise under upward view, the rotating piece drives the large sliding disc, the small sliding disc, the first rack and the second rack to rotate, the first gear on the fixed sleeve is fixed, the first rack and the second rack rotate relative to the first gear, but the first rack and the second rack are at the bottom, the first rack and the second rack do not move relative to the rotating piece any more, after the output shaft of the first stepping motor rotates for 90 degrees, the first rack passes through the notch of the first gear, the large circular hole is positioned in front of the discharge hole at the moment, the first rack moves backwards under the pulling of the second spring, the large sliding disc does not block the large circular hole any more, the reticular annular sheet vertically falls into the middle of the forming groove, then second quantitative grinding of the lower grinding mechanism falls into the forming groove, the floating device in the forming groove floats the grinding material, then the second rack passes through the gap of the first gear, the small circular hole is positioned in front of the discharge port at the moment, the second rack moves backwards under the pulling of the second spring, thereby the small sliding disc does not block the small circular hole any more, the mounting ring vertically falls into the middle of the forming groove, the cutting blade is formed in the forming groove, then the stepping motor rotates for a circle, each part returns to the original position, the underground grinding materials are circulated and orderly spaced in the way, the first-time lower grinding material is placed, the reticular annular sheet, the second-time lower grinding material is placed, the mounting ring is placed, the reticular annular sheet is ensured to vertically fall, and the degree of automation is high.
Furthermore, the left side and the right side of the upper end of the base are provided with second stepping motors, the left side of each second stepping motor drives a first conveying belt to convey an installation ring to the small sliding disc, the first conveying belt is erected on the support through a first connecting frame, the right side of each second stepping motor drives a second conveying belt to convey a net-shaped annular sheet to the large sliding disc, and the second conveying belts are erected on the support through second connecting frames. This setting can make big sliding tray when the place ahead of second conveyer belt, and the second step motor drive second conveyer belt on right side sends netted annular piece to big sliding tray, makes little sliding tray when the place ahead of first conveyer belt, and left second step motor drive first conveyer belt sends the collar to on little sliding tray.
Further, when the first rack passes through the notch of the first gear, the rotating part is vertically arranged, the second spring pulls the large sliding disc backwards through the first rack, the large sliding disc does not block the large round hole any more, and the meshed annular sheet vertically falls down; when the second rack passes through the notch of the first gear, the rotating piece is vertically arranged, the second spring pulls the small sliding disc backwards through the second rack, the small sliding disc does not block the small round hole any more, and the mounting ring vertically falls down.
Furthermore, chamfers are arranged on the upper edges of the large round hole and the small round hole. This arrangement allows the mounting ring, the mesh ring segments, to slide in between.
Furthermore, ration spare is including propping up roof on the working face of cam, both sides are equipped with preceding baffle, backplate respectively around the roof right-hand member, preceding baffle the backplate sliding fit is in the fender inslot of side's pipe, the left end of preceding baffle is equipped with the front hole, the right-hand member of backplate be equipped with the same rear hole of place ahead hole size, the front hole with clearance between the rear hole is greater than the front hole. The light leakage of the abrasive can be prevented.
The invention has the advantages that: simple structure can circulate and interval underground abrasive material, place netted annular piece, abrasive material down, place the collar, when the rotating member level, will have netted annular piece, collar to fall on big sliding tray, little sliding tray, can ration fall the abrasive material and guarantee that netted annular piece, collar fall the centre in the shaping groove perpendicularly, degree of automation is high, raises the efficiency.
Drawings
FIG. 1 is a perspective view according to the present invention;
FIG. 2 is a schematic structural diagram according to the present invention;
FIG. 3 is a front view according to the present invention;
FIG. 4 is a top view according to the present invention;
FIG. 5 is a sectional view A-A of FIG. 3;
FIG. 6 is a cross-sectional view of a large circular hole in front of a discharge port according to the present invention;
FIG. 7 is a cross-sectional view of a small circular orifice in front of a discharge orifice according to the present invention;
FIG. 8 is an enlarged view of portion B of FIG. 2;
FIG. 9 is an enlarged view of section C of FIG. 5;
FIG. 10 is an enlarged view of section D of FIG. 6;
FIG. 11 is an enlarged view of section E of FIG. 7;
fig. 12 is a perspective view of a dosing member according to the present invention.
Reference numerals: 1. the automatic feeding device comprises a base, 2, a first stepping motor, 3, a support, 4, a lower grinding mechanism, 41, a storage box, 42, a square pipe, 43, a quantitative piece, 431, a front baffle, 432, a rear baffle, 433, a top plate, 434, a front hole, 435, a rear hole, 44, a cam, 45, a second gear, 46, a third gear, 5, a rotating piece, 51, a large circular hole, 52, a small circular hole, 53, a large chute, 54, a small chute, 6, a fixed-point falling mechanism, 61, a large sliding disc, 62, a first rack, 63, a small sliding disc, 64, a second rack, 65, a first gear, 66, a fixed sleeve, 7, a second stepping motor, 8, a first conveying belt, 9, a first connecting frame, 10, a second conveying belt, 11 and a second connecting frame.
Detailed Description
As shown in fig. 1 to 12, a cutting blade discharging device comprises a base 1, a first stepping motor 2 is arranged at the upper end of the base 1, brackets 3 are symmetrically arranged at the left and right sides of the upper end of the base 1, a rotating member 5 is connected to an output shaft of the first stepping motor 2, a lower grinding mechanism 4 which is connected to the output shaft of the first stepping motor 2 and used for quantitatively and fixedly dropping grinding materials is connected to the brackets 3, the lower grinding mechanism 4 comprises a material storage box 41 arranged between the two brackets 3, a square pipe 42 communicated with the interior of the material storage box 41 is arranged at the front end of the material storage box 41, a quantitative member 43 is arranged on the obliquely arranged square pipe 42 in a left-right moving manner, a first spring is connected between the quantitative member 43 and the square pipe 42, a third gear 46 is connected to the output shaft of the first stepping motor 2 in a key manner, a second gear 45 is engaged with the rear end of the third gear 46, a cam 44 is coaxially connected above the second gear 45, the left end of the quantitative piece 43 is propped against the working surface of the cam 44, the left side and the right side of the rotating piece 5 are respectively provided with a small round hole 52 and a large round hole 51, and a fixed point falling mechanism 6 for falling the mounting ring and the reticular annular sheet at a fixed point is arranged in the rotating piece 5.
The fixed point falling mechanism 6 comprises a fixed sleeve 66 sleeved outside an output shaft of the first stepping motor 2, the fixed sleeve 66 is fixed on the first stepping motor 2 or the base 1, a first gear 65 with a notch at the left end is keyed on the upper end of the fixed sleeve 66, a small chute 54 communicated with the small circular hole 52 and a large chute 53 communicated with the large circular hole 51 are arranged in the rotating piece 5, a large sliding disc 61 and a small sliding disc 63 are respectively arranged in the large chute 53 and the small chute 54 in a sliding mode, a first rack 62 and a second rack 64 are respectively arranged on one side of the large sliding disc 61 and one side of the small sliding disc 63 facing the fixed sleeve 66, the first rack 62 and the second rack 64 are both meshed with the first gear 65 and are in sliding fit in a rack groove of the rotating piece 5, and second springs are respectively connected between the first rack 62 and the second rack 64 and the rack groove. The device can firstly carry out first grinding by the lower grinding mechanism, then the first stepping motor drives the rotating piece to rotate anticlockwise under upward view, the rotating piece drives the large sliding disc, the small sliding disc, the first rack and the second rack to rotate, the first gear on the fixed sleeve is fixed, the first rack and the second rack rotate relative to the first gear, but the first rack and the second rack are at the bottom, the first rack and the second rack do not move relative to the rotating piece any more, after the output shaft of the first stepping motor rotates for 90 degrees, the first rack passes through the notch of the first gear, the large circular hole is positioned in front of the discharge hole at the moment, the first rack moves backwards under the pulling of the second spring, the large sliding disc does not block the large circular hole any more, the reticular annular sheet vertically falls into the middle of the forming groove, then second quantitative grinding of the lower grinding mechanism falls into the forming groove, the floating device in the forming groove floats the grinding material, then the second rack passes through the gap of the first gear, the small circular hole is positioned in front of the discharge port at the moment, the second rack moves backwards under the pulling of the second spring, thereby the small sliding disc does not block the small circular hole any more, the mounting ring vertically falls into the middle of the forming groove, the cutting blade is formed in the forming groove, then the stepping motor rotates for a circle, each part returns to the original position, the underground grinding materials are circulated and orderly spaced in the way, the first-time lower grinding material is placed, the reticular annular sheet, the second-time lower grinding material is placed, the mounting ring is placed, the reticular annular sheet is ensured to vertically fall, and the degree of automation is high.
The left and right sides of base 1 upper end all is equipped with second step motor 7, and left second step motor 7 drive first conveyer belt 8 conveying collar to little sliding tray 63 on, and first conveyer belt 8 erects on support 3 through first link 9, and second step motor 7 drive second conveyer belt 10 conveying netted annular piece is to big sliding tray 61 on the right side, and second conveyer belt 10 erects on support 3 through second link 11. This setting can make big sliding tray when the place ahead of second conveyer belt, and the second step motor drive second conveyer belt on right side sends netted annular piece to big sliding tray, makes little sliding tray when the place ahead of first conveyer belt, and left second step motor drive first conveyer belt sends the collar to on little sliding tray.
When the first rack 62 passes through the gap of the first gear 65, the rotating member 5 is vertically arranged and the second spring pulls the large sliding disk 61 backwards through the first rack 62, the large sliding disk 61 no longer blocks the large circular hole 51, and the reticular annular sheet vertically falls down; when the second rack 64 passes through the notch of the first gear 65, the rotating member 5 is vertically arranged and the second spring pulls the small sliding disk 63 backwards through the second rack 64, the small sliding disk 63 no longer blocks the small circular hole 52, and the mounting ring vertically falls down.
The upper edges of the large round hole 51 and the small round hole 52 are provided with chamfers. This arrangement allows the mounting ring, the mesh ring segments, to slide in between.
The quantitative member 43 comprises a top plate 433 which is pressed against the working surface of the cam 44, a front baffle 431 and a rear baffle 432 are respectively arranged at the front side and the rear side of the right end of the top plate 433, the front baffle 431 and the rear baffle 432 are slidably matched in the baffle groove of the square pipe 42, a front hole 434 is arranged at the left end of the front baffle 431, a rear hole 435 which has the same size as the front hole 434 is arranged at the right end of the rear baffle 432, and the gap between the front hole 434 and the rear hole 435 is larger than that of the front hole 434. Can prevent the light leakage of the abrasive
The working principle is as follows: when a cutting piece needs to be machined, the second stepping motor on the right side drives the second conveyor belt to convey the net-shaped annular piece to the large sliding disc, the second stepping motor on the left side drives the first conveyor belt to convey the mounting ring to the small sliding disc, the first stepping motor drives the rotating piece and the third gear to rotate anticlockwise in a look-up mode, the third gear drives the second gear to rotate, the second gear drives the cam to rotate, when the output shaft rotates 45 degrees, the cam enables the quantitative piece to move right to the bottom, the front hole is communicated with the square pipe, the rear baffle blocks the square pipe, abrasive materials between the front baffle and the rear baffle fall into the forming groove through the front hole, the quantitative piece is restored under the action of the first spring, the rear hole is communicated with the square pipe, the front baffle blocks the square pipe, meanwhile, the rotating piece drives the large sliding disc, the small sliding disc, the first rack and the second rack to rotate, the first gear on the fixed sleeve is fixed, the first rack is fixed, The second rack rotates relative to the first gear, but the first rack and the second rack are already at the bottom, the first rack and the second rack do not move relative to the rotating part any more, when the output shaft rotates 90 degrees, the first rack passes through the notch of the first gear, at the moment, the large round hole is positioned in front of the discharge hole, the first rack moves backwards under the pulling of the second spring, the large sliding disc does not block the large round hole any more, the reticular annular sheet vertically falls to the middle of the forming groove, when the output shaft rotates 225 degrees, the cam enables the quantitative part to move to the bottom right again, the quantitative abrasive material for the second time enters the forming groove, the leveling device in the forming groove levels the abrasive material, when the output shaft rotates 270 degrees, the second rack passes through the notch of the first gear, at the moment, the small round hole is positioned in front of the discharge hole, the second rack moves backwards under the pulling of the second spring, the small sliding disc does not block the small round hole any more, the mounting ring vertically falls to the middle of the forming groove, shaping inslot shaping cutting piece, when output shaft rotated 360 degrees after that, each part answer the normal position, the second step motor drive second conveyer belt on right side is delivered netted annular piece to big sliding tray, the first conveyer belt of left second step motor drive is delivered to the mounting ring on little sliding tray, circulation and orderly interval ground abrasive material so, place netted annular piece, lower abrasive material, place the mounting ring, guarantee netted annular piece, the mounting ring falls perpendicularly, degree of automation is high.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. The utility model provides a cutting piece unloader which characterized in that: comprises a base (1), a first stepping motor (2) is arranged at the upper end of the base (1), supports (3) are symmetrically arranged at the left side and the right side of the upper end of the base (1), a rotating part (5) is connected to an output shaft of the first stepping motor (2), a lower grinding material mechanism (4) which is connected with the output shaft of the first stepping motor (2) and used for quantitatively and fixedly dropping grinding materials is connected to the supports (3), the lower grinding material mechanism (4) comprises a storage box (41) arranged between the two supports (3), a square pipe (42) communicated with the interior of the storage box (41) is arranged at the front end of the storage box (41), a quantitative part (43) is obliquely arranged on the square pipe (42) in a manner of moving left and right, a first spring is connected between the quantitative part (43) and the square pipe (42), a third gear (46) is connected to the output shaft of the first stepping motor (2) in a bonding manner, the rear end of third gear (46) meshes has second gear (45), the top coaxial coupling of second gear (45) has cam (44), the left end top of ration piece (43) is in on the working face of cam (44), the left and right sides of rotating member (5) is equipped with little round hole (52), big round hole (51) respectively, be equipped with in rotating member (5) and be used for the fixed point to fall down mounting ring, netted annular piece fixed point and fall down mechanism (6), fixed point falls down mechanism (6) including the cover establish fixed sleeve (66) outside the output shaft of first step motor (2), fixed sleeve (66) are fixed first step motor (2) or on base (1), the last end key-joint of fixed sleeve (66) has first gear (65) that the breach was established to the left end, be equipped with in rotating member (5) with little spout (54) that little round hole (52) communicate, With big spout (53) of big round hole (51) intercommunication, big spout (53) in little spout (54) respectively the sliding tray (61), little sliding tray (63) of sliding tray, big sliding tray (61) little sliding tray (63) face one side of fixed sleeve (66) is equipped with first rack (62), second rack (64) respectively, first rack (62) second rack (64) all with first gear (65) meshing and sliding tray are in the rack inslot of rotating member (5), first rack (62) second rack (64) with all be connected with the second spring between the rack groove.
2. A cutting blade blanking device as defined in claim 1, wherein: the left and right sides of base (1) upper end all is equipped with second step motor (7), and left second step motor (7) drive first conveyer belt (8) conveying collar extremely on little sliding tray (63), erect first conveyer belt (8) through first link (9) on support (3), the right side second step motor (7) drive second conveyer belt (10) conveying netted annular sheet extremely on big sliding tray (61), erect second conveyer belt (10) through second link (11) on support (3).
3. A cutting blade blanking device as defined in claim 1, wherein: when the first rack (62) passes through the notch of the first gear (65), the rotating piece (5) is vertically arranged, the second spring pulls the large sliding disc (61) backwards through the first rack (62), the large sliding disc (61) does not block the large circular hole (51), and the meshed annular sheet vertically falls down; when the second rack (64) passes through the notch of the first gear (65), the rotating piece (5) is vertically arranged, the second spring pulls the small sliding disc (63) backwards through the second rack (64), the small sliding disc (63) does not block the small round hole (52), and the mounting ring vertically falls down.
4. A cutting blade blanking device as defined in claim 1, wherein: chamfers are arranged on the upper edges of the large round hole (51) and the small round hole (52).
5. A cutting blade blanking device as defined in claim 1, wherein: quantitative piece (43) are including the top roof (433) on the working face of cam (44), both sides are equipped with preceding baffle (431), backplate (432) respectively around roof (433) right-hand member, preceding baffle (431) backplate (432) sliding fit are in the wall inslot of square pipe (42), the left end of preceding baffle (431) is equipped with front hole (434), the right-hand member of backplate (432) be equipped with the same rear hole (435) of front hole (434) size, front hole (434) with clearance between rear hole (435) is greater than front hole (434).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010291919.6A CN111469065B (en) | 2020-04-14 | 2020-04-14 | Cutting piece unloader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010291919.6A CN111469065B (en) | 2020-04-14 | 2020-04-14 | Cutting piece unloader |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111469065A CN111469065A (en) | 2020-07-31 |
| CN111469065B true CN111469065B (en) | 2022-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010291919.6A Active CN111469065B (en) | 2020-04-14 | 2020-04-14 | Cutting piece unloader |
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| CN (1) | CN111469065B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113118982A (en) * | 2021-04-06 | 2021-07-16 | 芜湖信华机械有限公司 | Automatic feeding mechanism during production of resin grinding wheel |
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| CN110559946A (en) * | 2019-09-05 | 2019-12-13 | 宁波润爵科技有限公司 | Feeding device for mixing two liquids in batches |
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| US5645783A (en) * | 1996-04-19 | 1997-07-08 | Ansari; Naseem A. | Apparatus and method for molding grinding wheels |
| CN204711854U (en) * | 2014-12-04 | 2015-10-21 | 泰兴市和庆机械配件厂 | Fiber mat picks and places feed arrangement |
| CN104924231B (en) * | 2015-07-03 | 2017-03-08 | 大连远东磨具有限公司 | A kind of emery wheel automatic assembly line |
| CN205888927U (en) * | 2016-07-28 | 2017-01-18 | 郑州市弘毅机械有限公司 | Full automatic rotation formula multistation emery wheel make -up machine |
| CN208867018U (en) * | 2018-09-19 | 2019-05-17 | 哈工大机器人义乌人工智能研究院 | A kind of grinding wheel punch forming device |
| CN210214171U (en) * | 2019-06-26 | 2020-03-31 | 河南努尔智能科技有限公司 | Abrasive material quantitative feeding device |
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- 2020-04-14 CN CN202010291919.6A patent/CN111469065B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0816049A1 (en) * | 1996-07-05 | 1998-01-07 | Paul Troester Maschinenfabrik | Gear-pump extruder and method for extruding elastomers and plastics |
| DE102007063534A1 (en) * | 2007-12-23 | 2009-06-25 | Platsch Gmbh & Co.Kg | Feed device for conveying a powdery medium from a powder container in a powder line |
| CN206156314U (en) * | 2016-10-13 | 2017-05-10 | 福建农林大学 | Automatic provide material device |
| CN109353552A (en) * | 2018-12-12 | 2019-02-19 | 枣庄金科农业科技有限公司 | A kind of intelligence feed processing packing machine |
| CN110559946A (en) * | 2019-09-05 | 2019-12-13 | 宁波润爵科技有限公司 | Feeding device for mixing two liquids in batches |
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| CN111469065A (en) | 2020-07-31 |
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