CN108714686A - A kind of continuous-flow type shell casting inner cavity fettling installation - Google Patents
A kind of continuous-flow type shell casting inner cavity fettling installation Download PDFInfo
- Publication number
- CN108714686A CN108714686A CN201810565336.0A CN201810565336A CN108714686A CN 108714686 A CN108714686 A CN 108714686A CN 201810565336 A CN201810565336 A CN 201810565336A CN 108714686 A CN108714686 A CN 108714686A
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- China
- Prior art keywords
- inner cavity
- sand removal
- outer cover
- elevating lever
- continuous
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D31/00—Cutting-off surplus material, e.g. gates; Cleaning and working on castings
- B22D31/002—Cleaning, working on castings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
Abstract
The invention discloses a kind of continuous-flow type shell casting inner cavity fettling installations of spheroidal graphite cast-iron technical field,Including sand removal outer cover,The inner cavity level of sand removal outer cover, which runs through, transmission belt,The inner cavity level of sand removal outer cover is equipped with fixed transverse slat,Activity is plugged with elevating lever at the center of fixed transverse slat,The outer circumferential walls of elevating lever are socketed with fixes sleeve,The bottom Joint that fixes sleeve passes through sleeve fixing frame and fixed transverse slat,The both sides of elevating lever are equipped with telescopic rod and cleaning sprayer,Elevating lever, which is equipped with, adjusts link block,Tightening knob and with driving sliding slot lifting drive rod,Driving motor is installed on the inner cavity rear wall of sand removal outer cover,Driving disc and the short pin of driving,Support leg is equipped at left and right sides of the bottom of sand removal outer cover,It is communicated at the bottom centre of sand removal outer cover and chamber is collected by filtration with water outlet,The present invention provides a kind of continuous-flow type operation devices convenient for the sand removal of housing body inner cavity,Casting production efficiency and sand grains reuse factor can be improved.
Description
Technical field
The present invention relates to spheroidal graphite cast-iron technical fields, specially a kind of continuous-flow type shell casting inner cavity fettling installation.
Background technology
Spheroidal graphite cast-iron is a kind of 20th century high-strength cast iron material for growing up of the fifties, comprehensive performance close to
Steel is based on its excellent performance, has been successfully used to cast some stress complexity, intensity, toughness, wearability are more demanding
Part.Spheroidal graphite cast-iron rapidly developed for be only second to gray cast iron, using very extensive cast iron materials.Spheroidal graphite cast-iron is logical
It crosses nodularization and inoculation obtains globular graphite, be effectively improved the mechanical performance of cast iron, in particular improve plasticity and tough
Property, to obtain the intensity also higher than carbon steel.Iron casting has almost been applied in all main industrial sectors, these
The high intensity of goal, plasticity, toughness, wearability, it is resistance to it is serious heat and mechanical shock, high temperature resistant or low temperature, it is corrosion-resistant with
And dimensional stability etc..These variation, spheroidal graphite cast-iron in order to meet use condition there are many trade mark, provide mechanical performance and
One very wide range of physical property.
It needs to carry out knockout cleaning after the casting of spheroidal graphite cast-iron process medium casting is cooling, which is known as sand removal, shell casting
It since inner cavity operating space is small, is hindered by shell, giant can not directly go deep into its inner cavity and be washed away when cleaning, need people
Work carries out sand removal operation to housing cavity manually, and when especially batch is cast, artificial sand removal has been known as casting production efficiency raising
Biggest obstacle.
Based on this, the present invention devises a kind of continuous-flow type shell casting inner cavity fettling installation, to solve the above problems.
Invention content
The purpose of the present invention is to provide a kind of continuous-flow type shell casting inner cavity fettling installations, to solve above-mentioned shell casting
It needs manually to carry out sand removal operation to its inner cavity, when especially batch is cast, artificial sand removal has been known as casting production efficiency and has carried
The problem of high biggest obstacle.
To achieve the above object, the present invention provides the following technical solutions：A kind of continuous-flow type shell casting inner cavity fettling installation,
Including sand removal outer cover, the inner cavity level of the sand removal outer cover is provided with shell casting through there is transmission belt at the top of the transmission belt
Part, the inner cavity of the sand removal outer cover is horizontally disposed fixed transverse slat, and the left and right ends of the fixed transverse slat are respectively at sand removal outer cover
Inner cavity at left and right sides of wall Joint, at the center of the fixed transverse slat activity be plugged with elevating lever, the circumference of the elevating lever
Outer wall is socketed with fixes sleeve, and the outer wall of the fixes sleeve is fixedly connected with sleeve fixing frame, the top of the sleeve fixing frame
The bottom Joint in portion and fixed transverse slat, the left and right sides wall of the elevating lever are symmetrically arranged with telescopic rod, the telescopic rod
Telescopic end is provided with cleaning sprayer, and the outer wall of the elevating lever is arranged with adjusting link block, and the adjusting link block, which is located at, to be fixed
The top of transverse slat, the left side wall for adjusting link block are bolted with the tightening knob for fixing elevating lever, the adjusting connection
The right side wall of block is connected with lifting drive rod, and driving sliding slot, the inner cavity of the sand removal outer cover are offered on the lifting drive rod
Driving motor is installed, the output end of the driving motor is socketed with driving disc, the front side of the driving disc on rear wall
Wall is provided with the short pin of driving, and the short pin of driving is slidably matched by bearing and driving sliding slot, and the bottom of the sand removal outer cover is left
Right both sides are provided with support leg, are communicated at the bottom centre of the sand removal outer cover and chamber is collected by filtration, described that the chamber right side is collected by filtration
Side wall offers water outlet.
Preferably, the inner cavity front-rear side walls that chamber is collected by filtration are symmetrically arranged with drawer sliding rail, and drawer described in two groups is slided
Filtering drawer is movably set between rail, the right side wall that chamber is collected by filtration offers the opening for filtering drawer extraction, institute
The bottom for stating filtering drawer is provided with filter screen, a large amount of sand grains is entrained in the waste water after casting cleaning, by filtering drawer
Sand grains in waste water, can be filtered collection by filtration, and drawer type design is taken out convenient for collected sand grains.
Preferably, the transmission belt includes two groups of balata belts disposed in parallel, plays the role of strengthening toughness, the rubber
Draining net is provided between rubber belt, the waste water after being washed away convenient for casting is directly drained into from draining net in filter collecting chamber, described
The top surface of draining net is provided with separation blend stop, can be separated to casting.
Preferably, the separation blend stop is equidistantly arranged, and the size of space separated between blend stop is more than shell casting
Appearance and size, separate blend stop to shell casting carry out equally-spaced, convenient for being matched with the cleaning sprayer of intermittent lifting.
Preferably, the cleaning sprayer is provided with two groups of nozzles, and nozzle described in two groups is obliquely installed to upper and lower both sides respectively,
Convenient for being washed away to corner above and below shell casting internal chamber wall, avoids washing away there are dead angle, be provided at the top of the cleaning sprayer
Water inlet interface is accessed for high-pressure water pipe.
Preferably, the outer wall of the elevating lever is symmetrically set with convex block, the intracavity sidewall setting of the fixes sleeve
Have and cooperate with fixes sleeve with the matched helicla flute of convex block, elevating lever, when lifter rod lifting moves, convex block is in spiral
It is slided with helical trajectory in slot so that lifter rod lifting generates spinning movement when moving, and is washed away convenient for cleaning sprayer is multi-faceted.
Preferably, the front side wall of the sand removal outer cover is provided with observation window, and the work convenient for observation sand removal outer cover inner cavity is real
Condition.
Compared with prior art, the beneficial effects of the invention are as follows：Structure of the invention is reasonable, and elevating lever is mutual with fixes sleeve
Cooperation so that the inner cavity that the cleaning sprayer with upper and lower two groups of nozzles can extend into shell casting carries out spiral flush clean,
Exempt artificial sand removal operation, it is time saving and energy saving；The present apparatus carries out sand removal using assembly line continuous conveying casting, accelerates the clear of casting
Sand speed, and then improve castings production efficiency；The present apparatus is also equipped with filtering drawer simultaneously, can carry out the sand grains in waste water
Filter is collected, and the reuse factor of sand grains is improved.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will be described below to embodiment required
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is schematic structural view of the invention；
Fig. 2 is internal structure enlarged view of the present invention；
Fig. 3 is that the present invention shows internal structure side view；
Fig. 4 is the portions the A-A sectional view of Fig. 1；
Fig. 5 is conveyer structure schematic diagram of the present invention；
Fig. 6 is elevating lever of the present invention and fixes sleeve structural schematic diagram.
In attached drawing, parts list represented by the reference numerals are as follows：
1- sand removal outer covers, 2- transmission belts, 201- balata belts, 202- draining nets, 203- separation blend stops, 3- shell castings,
4- fixes transverse slat, 5- elevating levers, 51- convex blocks, 6- fixes sleeves, 61- helicla flutes, 7- sleeve fixing frames, 8- telescopic rods, 9- cleanings
Nozzle, 10- adjust link block, 11- tightening knobs, and 12- lifts drive rod, and 13- drives sliding slot, 14- driving motors, 15- drivings
Turntable, 16- drive short pin, 17- support legs, and 18- is collected by filtration chamber, 19- water outlets, 20- drawer sliding rails, and 21- filters drawer,
22- filter screens, 23- observation windows.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained all other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
- 6 are please referred to Fig.1, the present invention provides a kind of technical solution：A kind of continuous-flow type shell casting inner cavity fettling installation, packet
Include sand removal outer cover 1, the inner cavity level of sand removal outer cover 1 includes two groups of rubber skins disposed in parallel through having transmission belt 2, transmission belt 2
Band 201 plays the role of strengthening toughness, is provided with draining net 202 between balata belt 201, the waste water after being washed away convenient for casting is straight
It connects from draining net 202 and is drained into filter collecting chamber 18, the top surface of draining net 202, which is provided with, separates blend stop 203, can be to casting
Part is separated, and is separated blend stop 203 and is equidistantly arranged, and the shape that the size of space between blend stop 203 is more than shell casting 3 is separated
Size separates blend stop 203 and carries out equally-spaced to shell casting, convenient for being matched with the cleaning sprayer 9 of intermittent lifting, transmission
2 top is provided with shell casting 3, the inner cavity of sand removal outer cover 1 is horizontally disposed fixed transverse slat 4, the left and right two of fixed transverse slat 4
The wall Joint at left and right sides of the inner cavity of sand removal outer cover 1 is held, activity at the center of transverse slat 4 of fixing is plugged with elevating lever 5, rises
The outer circumferential walls of drop bar 5 are socketed with fixes sleeve 6, and the outer wall of elevating lever 5 is symmetrically set with convex block 51, fixes sleeve 6
Intracavity sidewall is provided with to cooperate with 51 matched helicla flute 61 of convex block, elevating lever 5 and fixes sleeve 6, when 5 liters of elevating lever
When drop movement, convex block 51 slides in helicla flute 61 with helical trajectory so that spinning movement is generated when 5 elevating movement of elevating lever,
It is washed away convenient for cleaning sprayer 9 is multi-faceted, the outer wall of fixes sleeve 6 is fixedly connected with sleeve fixing frame 7, the top of sleeve fixing frame 7
The left and right sides wall of the bottom Joint in portion and fixed transverse slat 4, elevating lever 5 is symmetrically arranged with telescopic rod 8, and telescopic rod 8 stretches
End is provided with cleaning sprayer 9, and cleaning sprayer 9 is provided with two groups of nozzles, and two groups of nozzles are obliquely installed to upper and lower both sides, are convenient for respectively
Corner above and below shell casting internal chamber wall is washed away, avoids washing away there are dead angle, the top of cleaning sprayer 9, which is provided with into water, to be connect
Mouthful, it is accessed for high-pressure water pipe, the outer wall of elevating lever 5, which is arranged with, adjusts link block 10, adjusts link block 10 and is located at fixed transverse slat 4
Top, the left side wall for adjusting link block 10 is bolted with the tightening knob 11 for fixing elevating lever 5, adjusts the right side of link block 10
Side wall is connected with lifting drive rod 12, lifts and offers driving sliding slot 13, the inner cavity rear wall of sand removal outer cover 1 on drive rod 12
On driving motor 14 is installed, the output end of driving motor 14 is socketed with 15, and it is short that the front side wall of driving disc 15 is provided with driving
Pin 16 drives short pin 16 to be slidably matched by bearing and driving sliding slot 13, support is provided at left and right sides of the bottom of sand removal outer cover 1
Foot 17 is communicated at the bottom centre of sand removal outer cover 1 and chamber 18 is collected by filtration, and the inner cavity front-rear side walls that chamber 18 is collected by filtration are symmetrical
It is provided with drawer sliding rail 20, filtering drawer 21 is movably set between two groups of drawer sliding rails 20, the right side wall of chamber 18 is collected by filtration
The opening extracted out for filtering drawer 21 is offered, the bottom of filtering drawer 21 is provided with filter screen 22, the waste water after casting cleaning
In be entrained with a large amount of sand grains, by filter drawer 21 filtration, the sand grains in waste water can be filtered collection, drawer type
Design is taken out convenient for collected sand grains, and 18 right side wall of chamber is collected by filtration and offers water outlet 19, the front side wall of sand removal outer cover 1 is set
It is equipped with observation window 23, the work convenient for 1 inner cavity of observation sand removal outer cover is live.
One of the present embodiment has particular application as：The present apparatus is a kind of continuous-flow type shell casting inner cavity fettling installation, mainly
For the sand removal of the shell casting inner cavity of foundry up and down, the present apparatus is fixedly mounted, makes transmission belt 2 outside sand removal
Water inlet interface in cleaning sprayer 9 is connected with extraneous giant, opens the motor on transmission belt 2 by the inner cavity of cover 1, will
Shell casting shell casting 3 lies against the left side on transmission belt 2, and transmission belt 2 conveys to the right, due to effect of inertia, shell casting
3 left side is abutted against with the right side for separating blend stop 203, when shell casting 3 is transferred into the lower section of two groups of cleaning sprayers 9, temporarily
Stopping transportation is sent, and starts driving motor 14 and driving disc 15 is driven to rotate, the short pin 16 of driving in driving disc 15 is along driving disc 15
Edge rotation, due to driving short pin 16 to be slidably matched by bearing and driving sliding slot 13, and driving sliding slot 13 is horizontally disposed
With on lifting drive rod 12, so when driving short pin 16 circumferentially to rotate, lifting drive rod 12 moves up and down therewith, due to rising
Drive rod 12 drops by adjusting link block 10 and 5 Joint of elevating lever, and elevating lever 5 is slidably connected with fixed transverse slat 4, so rising
Bar 5 is dropped to move up and down with the rotation of driving motor 14, it is fixed since the outer wall of elevating lever 5 is symmetrically set with convex block 51
The intracavity sidewall of sleeve 6 be provided with 51 matched helicla flute 61 of convex block, and fixes sleeve 6 by sleeve fixing frame 7 with it is solid
Determine 4 Joint of transverse slat, so when 5 elevating movement of elevating lever, convex block 51 slides in helicla flute 61 with helical trajectory so that
Spinning movement is generated when 5 elevating movement of elevating lever, so when driving motor 14 rotates, elevating lever 5 is installed on by telescopic rod 8
The cleaning sprayer 9 of both sides can spiral lifting movement, and two groups of nozzles in cleaning sprayer 9 respectively to upper and lower both sides tilt set
It sets, convenient for being washed away to corner above and below shell casting internal chamber wall, avoids washing away that there are dead angles, so when driving motor 14 rotates one
Zhou Shi, the just complete lifting action of cleaning sprayer 9, the water jets under high pressure of the nozzle injection in lifting process in cleaning sprayer 9
The inner cavity of shell casting 3 is washed away, the motor for completing to wash away on rear transmission belt 2, which continues to start, conveys next shell casting
Part 3 is rinsed；After unclamping tightening knob 11, up and down adjustment can be carried out to the fixed position for adjusting link block 10, it is clear to change
The adjustable height range of nozzle 9 is washed, the sand removal of different height shell casting 3 is adapted to, the waste water after washing away is discharged into filtering through 203 and receives
Collect chamber 18, is collected by filtration in chamber 18 and is provided with filtering drawer 21, and the bottom for filtering drawer 21 is provided with filter screen 22, passes through
Sand grains in waste water can be filtered collection by the filtration of strainer 22, since filtering drawer 21 and drawer sliding rail 20 slide
Connection, drawer sliding rail 20 is fixed on the inner cavity front-rear side walls that chamber 18 is collected by filtration, and the sand grains after collection can be from being collected by filtration chamber
18 right side wall pull takes out, and remaining waste water can be from 19 discharger of water outlet.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the present invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably explain the present invention
Principle and practical application, to enable skilled artisan to be best understood by and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (7)
1. a kind of continuous-flow type shell casting inner cavity fettling installation, including sand removal outer cover (1), it is characterised in that：The sand removal outer cover
(1) inner cavity level is provided with shell casting (3) through there is transmission belt (2) at the top of the transmission belt (2), outside the sand removal
The inner cavity of cover (1) is horizontally disposed fixed transverse slat (4), and the left and right ends of the fixed transverse slat (4) are respectively at sand removal outer cover (1)
Wall Joint at left and right sides of inner cavity, at the center of the fixed transverse slat (4) activity be plugged with elevating lever (5), the elevating lever (5)
Outer circumferential walls be socketed with fixes sleeve (6), the outer wall of the fixes sleeve (6) is fixedly connected with sleeve fixing frame (7), described
The bottom Joint at the top of sleeve fixing frame (7) and fixed transverse slat (4), the left and right sides wall of the elevating lever (5) are symmetrically set
It is equipped with telescopic rod (8), the telescopic end of the telescopic rod (8) is provided with cleaning sprayer (9), and the outer wall of the elevating lever (5) is arranged
There are adjusting link block (10), the link block (10) that adjusts to be located at the top for fixing transverse slat (4), the adjusting link block (10)
Left side wall is bolted with the tightening knob (11) for fixing elevating lever (5), and the right side wall for adjusting link block (10) is connected with
Drive rod (12) is lifted, is offered on the lifting drive rod (12) and drives sliding slot (13), behind the inner cavity of the sand removal outer cover (1)
Driving motor (14) is installed, the output end of the driving motor (14) is socketed with (15), the driving disc (15) on side wall
Front side wall be provided with the short pin (16) of driving, the short pin (16) of driving is slidably matched by bearing with sliding slot (13) is driven, institute
It states and is provided with support leg (17) at left and right sides of the bottom of sand removal outer cover (1), be communicated at the bottom centre of the sand removal outer cover (1)
Chamber (18) is collected by filtration, described chamber (18) right side wall that is collected by filtration offers water outlet (19).
2. a kind of continuous-flow type shell casting inner cavity according to claim 1 fettling installation, it is characterised in that：The filtering is received
The inner cavity front-rear side walls of collection chamber (18) are symmetrically arranged with drawer sliding rail (20), activity setting between drawer sliding rail (20) described in two groups
There is filtering drawer (21), the right side wall that chamber (18) is collected by filtration offers the opening extracted out for filtering drawer (21), described
The bottom of filtering drawer (21) is provided with filter screen (22).
3. a kind of continuous-flow type shell casting inner cavity according to claim 1 fettling installation, it is characterised in that：The transmission belt
(2) include two groups of balata belts (201) disposed in parallel, draining net (202), institute are provided between the balata belt (201)
The top surface for stating draining net (202) is provided with separation blend stop (203).
4. a kind of continuous-flow type shell casting inner cavity according to claim 3 fettling installation, it is characterised in that：The separation gear
Item (203) is equidistantly arranged, and the size of space separated between blend stop (203) is more than the appearance and size of shell casting (3).
5. a kind of continuous-flow type shell casting inner cavity according to claim 1 fettling installation, it is characterised in that：The cleaning spray
Head (9) is provided with two groups of nozzles, and nozzle described in two groups is obliquely installed to upper and lower both sides respectively, the top of the cleaning sprayer (9)
It is provided with water inlet interface.
6. a kind of continuous-flow type shell casting inner cavity according to claim 1 fettling installation, it is characterised in that：The elevating lever
(5) outer wall is symmetrically set with convex block (51), and the intracavity sidewall of the fixes sleeve (6) is provided with to match with convex block (51)
The helicla flute (61) of conjunction.
7. a kind of continuous-flow type shell casting inner cavity according to claim 1 fettling installation, it is characterised in that：Outside the sand removal
The front side wall of cover (1) is provided with observation window (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810565336.0A CN108714686A (en) | 2018-06-04 | 2018-06-04 | A kind of continuous-flow type shell casting inner cavity fettling installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810565336.0A CN108714686A (en) | 2018-06-04 | 2018-06-04 | A kind of continuous-flow type shell casting inner cavity fettling installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108714686A true CN108714686A (en) | 2018-10-30 |
Family
ID=63911732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810565336.0A Pending CN108714686A (en) | 2018-06-04 | 2018-06-04 | A kind of continuous-flow type shell casting inner cavity fettling installation |
Country Status (1)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110076107A (en) * | 2019-05-27 | 2019-08-02 | 河北工业大学 | A kind of easy multifunctional glass perching knife |
| CN111589222A (en) * | 2020-06-24 | 2020-08-28 | 湖州南丰机械制造有限公司 | Sand removal processing system of foundry goods |
| CN113042716A (en) * | 2019-12-26 | 2021-06-29 | 新兴重工湖北三六一一机械有限公司 | Rotary vibration sand removing device |
| CN116475366A (en) * | 2023-06-26 | 2023-07-25 | 华翔(洪洞)智能科技有限公司 | Stream inoculant collecting device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110076107A (en) * | 2019-05-27 | 2019-08-02 | 河北工业大学 | A kind of easy multifunctional glass perching knife |
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| CN113042716A (en) * | 2019-12-26 | 2021-06-29 | 新兴重工湖北三六一一机械有限公司 | Rotary vibration sand removing device |
| CN111589222A (en) * | 2020-06-24 | 2020-08-28 | 湖州南丰机械制造有限公司 | Sand removal processing system of foundry goods |
| CN116475366A (en) * | 2023-06-26 | 2023-07-25 | 华翔(洪洞)智能科技有限公司 | Stream inoculant collecting device and method |
| CN116475366B (en) * | 2023-06-26 | 2023-08-22 | 华翔(洪洞)智能科技有限公司 | Stream inoculant collecting device and method |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181030 |
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| RJ01 | Rejection of invention patent application after publication |