CN106077521B - Cover sand machine nozzle - Google Patents
Cover sand machine nozzle Download PDFInfo
- Publication number
- CN106077521B CN106077521B CN201610731480.8A CN201610731480A CN106077521B CN 106077521 B CN106077521 B CN 106077521B CN 201610731480 A CN201610731480 A CN 201610731480A CN 106077521 B CN106077521 B CN 106077521B
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- China
- Prior art keywords
- sand
- hole
- main body
- labyrinth
- logical
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
- B22C15/23—Compacting by gas pressure or vacuum
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
Abstract
This patent is related to casting and molding technical field, disclose one kind and cover sand machine nozzle, including logical sand device, cover sand plate and main body, main body screw, which is connected to, to be covered on sand plate, logical sand hole is provided with main body, the upper end of main body is connected with the logical sand device, and the lower end of main body is provided with and led to the coaxial shoulder hole of sand hole, and the aperture of the shoulder hole is close to logical sand hole；Shoulder hole internal thread is connected with a pressure cap, silk pressure cap is provided with through hole, and being provided with labyrinth in shoulder hole fills in, and the lower end both sides of labyrinth plug are equipped with support protrusion, the upper end both sides of labyrinth plug are equipped with spacing preiection, and silk pressure cap supports the labyrinth plug macropore nose end of spacing preiection and shoulder hole is offseted.Above-mentioned technical proposal is compared to the prior art, nozzle is after completing to penetrate sand, square molding sand is stopped by labyrinth plug beyond the Great Wall in labyrinth, it can not flow out, only positioned at a small amount of molding sand outflow of labyrinth plug lower section, effectively reduce molding sand to drop, while avoiding waste, also mitigate the destruction that molding sand is brought to production environment.
Description
Technical field
The present invention relates to casting and molding technical field, more particularly to cover sand equipment technical field.
Background technology
Iron Mould Coated Sand refers to be covered with a thin layer resin sand in metal mold inner chamber, then covers the cast casting of placer iron type using this
Part.It is higher due to covering placer iron type rigidity, casting deformation can be effectively prevented, improves product yield, and improves casting dimension essence
Degree, improve surface quality.It is to cover sand hole from one group of the swage back side wherein to cover sand molding, is formed after swage and apperance matched moulds
The preferable molding sand of mobility is injected in gap, then cured, and the casting mold of Iron Mould Coated Sand is formed after molding, that is, covers placer iron type.Entirely
Sand molding is covered to complete on sand machine in more special cover.
The existing sand machine nozzle that covers includes main body, covers sand plate, and body, which is threaded in, to be covered on sand plate, and the upper end of body is connected with
Logical sand device, interior be provided with of body are used for the logical sand hole that molding sand passes through.In use, logical sand device is connected with the bucket of penetrating for covering sand machine, it is real
Now cover sand.The shortcomings that structure, is：Cover sand machine to complete after covering sand, appoint in logical sand hole and remain some molding sand, when nozzle leaves
During mould, the molding sand in logical sand hole is dropped due to the effect of self gravitation in die surface, due to die surface temperature compared with
Height, the molding sand on mould that drops, which can solidify, to be bonded on mould, can not be reused, on the one hand be caused the wave of precoated sand
Take, on the other hand the molding sand of solidification destroys production environment, and the cleaning to worker makes troubles.
The content of the invention
The invention is intended to provide one kind to cover sand machine nozzle, to reduce dropping for precoated sand in nozzle.
Sand machine nozzle is covered in this programme, including leads to sand device, cover sand plate and main body, the main body screw, which is connected to, covers sand
Logical sand hole is provided with plate, in main body, the upper end of main body is connected with the logical sand device, and the lower end of the main body is provided with and led to sand hole
Coaxial shoulder hole, the aperture of the shoulder hole is close to logical sand hole；The shoulder hole internal thread is connected with a pressure cap, is set on silk pressure cap
There is through hole, being provided with labyrinth in shoulder hole fills in, and the lower end both sides of the labyrinth plug are equipped with support protrusion, the upper end both sides of labyrinth plug
Spacing preiection is equipped with, the upper end of the silk pressure cap supports the labyrinth to fill in the macropore nose end phase for making spacing preiection and shoulder hole
Support.
Operation principle：The spacing preiection and the macropore nose end of shoulder hole held beyond the Great Wall due to labyrinth are offseted, so aperture and fan
The space for accommodating molding sand is left between the plug of palace, the lateral dimension of labyrinth plug is less than part and the shoulder hole macropore inwall of spacing preiection
Between leave gap, so that molding sand passes through；The logical sand hole that molding sand is entered in main body under high pressure effect by leading to sand device, and then
Carry out covering sand by the lower end for leading to sand hole, the change in displacement of molding sand is：Molding sand is entered in the aperture of shoulder hole by leading to sand hole, type
Sand fills in the lower section that labyrinth plug is reached from the gap of side around labyrinth, is projected from the through hole of silk pressure cap.After completing to penetrate sand, due to
The elimination of pressure, and the viscosity having of molding sand in itself, so in the case of no pressure, the bottom shape of molding sand and labyrinth plug
Into an angle of repose, molding sand can not flow out in the presence of self gravitation from the side clearance that labyrinth is filled in, so serve leakproof
Effect.
Beneficial effect：Compared to the prior art, nozzle is after completing to penetrate sand, labyrinth square molding sand beyond the Great Wall for above-mentioned technical proposal
Stopped by labyrinth plug, can not flow out, only a small amount of molding sand outflow positioned at labyrinth plug lower section, effectively reduce molding sand and drop,
While avoiding waste, the destruction that molding sand is brought to production environment is also mitigated.
Further, the logical sand device includes sand block cap, and the sand block cap thread is connected in main body, in the sand block cap
The blind hole that sand hole communicates is provided with and led to, the transverse holes for crossing blind hole are additionally provided with sand block cap.The transverse holes are used for and covered sand machine
Penetrate to struggle against to be connected and carry out logical sand, molding sand enters blind hole by transverse holes, and hence into logical sand hole, molding sand can by the bend of transverse direction
Play cushioning effect, effectively slow down molding sand because of inertia and caused by flowing velocity, prevent molding sand local flow excessive velocities, cause
It is uneven to penetrate sand.
Further, the end of the sand block cap and cover packing ring is provided between sand plate, packing ring is in sand block cap and covers squeezing for sand plate
Pressure deformation, increase sand block cap and cover the thrust between sand plate, and then increase the frictional resistance of sand block cap, realize sand block cap
Loosen；Also, avoid sand block cap and cover sand plate and directly contact, prevent sand block cap and cover crimp between sand plate hard material,
Cause locked.
Further, the lower end of the silk pressure cap is provided with annular groove, and sealing ring is provided with the annular groove；Covering the nozzle of sand machine is
Installed in swage surface, sealing ring and swage surface engagement are set to increase and penetrate the sealing of sand.
Brief description of the drawings
Fig. 1 is the structural representation that the present invention covers sand machine nozzle embodiment；
Fig. 2 is the structural representation of main body in Fig. 1；
Fig. 3 is the structural representation that labyrinth is filled in Fig. 1；
Fig. 4 is Fig. 3 overlooking the structure diagram.
Embodiment
Below by embodiment, the present invention is further detailed explanation：
Reference in Figure of description includes：Cover sand plate 1, main body 2, logical sand hole 21, shoulder hole 22, sand block cap 3, horizontal stroke
To hole 31, blind hole 32, packing ring 4, labyrinth plug 5, spacing preiection 51, support protrusion 52, silk pressure cap 6, sealing ring 7.
Embodiment is substantially as shown in Figures 1 and 2：
Sand machine nozzle is covered, includes logical sand device from top to bottom, cover sand plate 1 and main body 2, cover and be threaded hole on sand plate 1,
Main body 2 is threaded in through screwed hole to be covered on sand plate 1；Logical sand hole 21, the upper end of main body 2 and logical sand dress are machined with main body 2
Put connected, logical sand device and cover penetrating to struggle against and being connected for sand machine.
Logical sand device includes sand block cap 3, and sand block cap 3 is threadedly coupled on the body 2, the lower end of sand block cap 3 and sand ejection board it
Between packing ring 4 is installed.The blind hole 32 communicated with the logical sand hole 21 of main body 2 is provided with sand block cap 3, is additionally provided with and runs through on sand block cap 3
The transverse holes 31 of blind hole 32, the bucket of penetrating of penetrating sand machine are connected with transverse holes 31 for leading to sand.
The lower end of main body 2 is provided with and led to the coaxial shoulder hole 22 of sand hole 21, and the hole diameter of the shoulder hole 22 is more than logical sand
Hole 21, the macropore inwall of the shoulder hole 22 are provided with screw thread；The macropore screw-internal thread fit of shoulder hole 22 has a pressure cap 6, on silk pressure cap 6
It is provided with through hole；The upper end of silk pressure cap 6 is supported by a labyrinth plug 5, and as shown in Figure 3 and Figure 4, the bottom of labyrinth plug 5 is machined with branch
The upper end of support projection 52, support protrusion 52 and silk pressure cap 6 offsets, and makes to leave logical sand between labyrinth plug 5 and the upper end of silk pressure cap 6
Gap.The both sides of labyrinth plug 5 are machined with the spacing preiection 51 for installation, and the length of spacing preiection 51 of labyrinth plug 5 is equal to greatly
Bore dia.Annular groove is machined with the bottom face of silk pressure cap 6, sealing ring 7 is installed in annular groove.
Operation principle：Labyrinth plug 5 is because the macropore nose end with shoulder hole 22 offsets, so stayed between aperture and labyrinth plug 5
There is the space for accommodating molding sand, gap is left between the side of labyrinth plug 5 and the macropore inwall of shoulder hole 22, so that molding sand passes through；Type
The logical sand hole 21 that sand is entered in main body 2 under high pressure effect by leading to sand device, and then the lower end by leading to sand hole 21 is covered
Sand, the change in displacement of molding sand are：Molding sand is entered in the aperture of shoulder hole 22 by leading to sand hole 21, and molding sand fills in 5 from side around labyrinth
The gap in face reaches the lower section of labyrinth plug 5, is projected from the through hole of silk pressure cap 6.After completing to penetrate sand, due to the cancellation of pressure, and
And the mobility of molding sand in itself is not too strong, so in the case of no pressure, molding sand can not be from the presence of self gravitation
The side clearance outflow of labyrinth plug 5, so serve the effect of leakproof.
Above-described is only embodiments of the invention, and the general knowledge such as known concrete structure and characteristic is not made herein in scheme
Excessive description., without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these should also be considered as protection scope of the present invention, and these are implemented all without the influence present invention
Effect and practical applicability.The scope of protection required by this application should be based on the content of the claims, in specification
The records such as embodiment can be used for the content for explaining claim.
Claims (4)
1. one kind covers sand machine nozzle, including leads to sand device, covers sand plate and main body, the main body screw, which is connected to, to be covered on sand plate, main
Logical sand hole is provided with vivo, and the upper end of main body is connected with the logical sand device, it is characterised in that：The lower end of the main body is provided with and led to
The coaxial shoulder hole of sand hole, the aperture of the shoulder hole are more than logical sand hole close to logical sand hole, the hole diameter of the shoulder hole；The rank
Terraced hole internal thread is connected with a pressure cap, and silk pressure cap is provided with through hole, and being provided with labyrinth in shoulder hole fills in, the lower end two of the labyrinth plug
Side is equipped with support protrusion, and the upper end both sides of labyrinth plug are equipped with spacing preiection, and the upper end of the silk pressure cap supports the labyrinth
Plug makes the macropore nose end of spacing preiection and shoulder hole offset, and the spacing preiection length of labyrinth plug is equal to diameter macropores.
2. according to claim 1 cover sand machine nozzle, it is characterised in that：The logical sand device includes sand block cap, the gear
Sand cap thread is connected in main body, is provided with and leads to the blind hole that sand hole communicates in the sand block cap, be additionally provided with sand block cap cross it is blind
The transverse holes in hole.
3. according to claim 2 cover sand machine nozzle, it is characterised in that：The end of the sand block cap and covering is set between sand plate
There is packing ring.
4. according to claim 3 cover sand machine nozzle, it is characterised in that：The lower end of the silk pressure cap is provided with annular groove, should
Sealing ring is provided with annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610731480.8A CN106077521B (en) | 2016-08-26 | 2016-08-26 | Cover sand machine nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610731480.8A CN106077521B (en) | 2016-08-26 | 2016-08-26 | Cover sand machine nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106077521A CN106077521A (en) | 2016-11-09 |
| CN106077521B true CN106077521B (en) | 2018-03-27 |
Family
ID=57225303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610731480.8A Active CN106077521B (en) | 2016-08-26 | 2016-08-26 | Cover sand machine nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106077521B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0561729A1 (en) * | 1992-03-16 | 1993-09-22 | Agustin Arana Erana | Coreshooter for self-setting process with vacuum system |
| RU2027538C1 (en) * | 1991-03-14 | 1995-01-27 | Пензенский государственный технический университет | Pulsed-action head |
| CN2306855Y (en) * | 1997-08-22 | 1999-02-10 | 无锡市科兴铸造机械厂 | Spray nozzle of core shooter and shell core moulding machine |
| CN201693140U (en) * | 2010-06-03 | 2011-01-05 | 新兴重工湖北三六一一机械有限公司 | Core-shooting self-closing sand-shooting nozzle |
| CN202062052U (en) * | 2011-05-04 | 2011-12-07 | 肇庆市丰驰精密金属制品有限公司 | Sand shooting nozzle |
| CN202224603U (en) * | 2011-08-18 | 2012-05-23 | 浙江省机电设计研究院有限公司 | Sand-leakage-proof sand shooting nozzle of sand-lined metal mould sand shooting plate |
| CN103182483A (en) * | 2011-12-29 | 2013-07-03 | 广西玉柴机器股份有限公司 | Hot core box jet nozzle |
| CN204430212U (en) * | 2015-01-26 | 2015-07-01 | 申如意 | A kind of sand leakage avoiding water cooling nozzle produced for mould |
| CN205967306U (en) * | 2016-08-26 | 2017-02-22 | 重庆新红旗缸盖制造有限公司 | It penetrates mouth to cover sand machine |
-
2016
- 2016-08-26 CN CN201610731480.8A patent/CN106077521B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2027538C1 (en) * | 1991-03-14 | 1995-01-27 | Пензенский государственный технический университет | Pulsed-action head |
| EP0561729A1 (en) * | 1992-03-16 | 1993-09-22 | Agustin Arana Erana | Coreshooter for self-setting process with vacuum system |
| CN2306855Y (en) * | 1997-08-22 | 1999-02-10 | 无锡市科兴铸造机械厂 | Spray nozzle of core shooter and shell core moulding machine |
| CN201693140U (en) * | 2010-06-03 | 2011-01-05 | 新兴重工湖北三六一一机械有限公司 | Core-shooting self-closing sand-shooting nozzle |
| CN202062052U (en) * | 2011-05-04 | 2011-12-07 | 肇庆市丰驰精密金属制品有限公司 | Sand shooting nozzle |
| CN202224603U (en) * | 2011-08-18 | 2012-05-23 | 浙江省机电设计研究院有限公司 | Sand-leakage-proof sand shooting nozzle of sand-lined metal mould sand shooting plate |
| CN103182483A (en) * | 2011-12-29 | 2013-07-03 | 广西玉柴机器股份有限公司 | Hot core box jet nozzle |
| CN204430212U (en) * | 2015-01-26 | 2015-07-01 | 申如意 | A kind of sand leakage avoiding water cooling nozzle produced for mould |
| CN205967306U (en) * | 2016-08-26 | 2017-02-22 | 重庆新红旗缸盖制造有限公司 | It penetrates mouth to cover sand machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106077521A (en) | 2016-11-09 |
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