CN205967306U - It penetrates mouth to cover sand machine - Google Patents
It penetrates mouth to cover sand machine Download PDFInfo
- Publication number
- CN205967306U CN205967306U CN201620949413.9U CN201620949413U CN205967306U CN 205967306 U CN205967306 U CN 205967306U CN 201620949413 U CN201620949413 U CN 201620949413U CN 205967306 U CN205967306 U CN 205967306U
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- Prior art keywords
- sand
- hole
- cap
- maze
- logical
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Abstract
The utility model relates to a casting modeling technology field discloses an it penetrates mouth to cover sand machine, and including leading to the sand device, covering sand board and main part, main part threaded connection is equipped with logical pit in the main part on covering the sand board, the upper end of main part with leading to the sand device and linking to each other, the lower extreme of main part is equipped with and leads to the coaxial shoulder hole of pit, and the aperture of this shoulder hole is close to and leads to the pit, shoulder hole female connection has the silk to press the cap, and the silk is equipped with the through -hole on pressing the cap, is equipped with the maze stopper in the shoulder hole, and the lower extreme both sides of maze stopper all are equipped with supporting protrusion, and the upper end both sides of maze stopper all are equipped with spacing arch, and the silk presses the cap to support the maze stopper makes the macropore nose end of spacing arch and shoulder hole offset. Above -mentioned technical scheme compares with prior art, penetrates the mouth after sand is penetrated in the completion, and maze square molding sand is beyond the great wall stopped by the maze stopper that unable the outflow only lies in a small amount of molding sand outflow of maze stopper below, has effectively reduced the molding sand to drop, when having avoided the waste, has also lightened the destruction that the molding sand brought for the production environment.
Description
Technical field
This utility model is related to casting and molding technical field, more particularly, to covers 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.Higher due to covering placer iron type rigidity, can effectively prevent casting deformation, improve product yield, and improve casting dimension essence
Degree, improves surface quality.Wherein covering sand molding is to cover sand hole from one group of the swage back side, is formed after swage and apperance matched moulds
The preferable molding sand of mobility is injected in gap, more cured, forms the casting mold of Iron Mould Coated Sand after molding, that is, cover placer iron type.Entirely
Cover sand molding to complete on sand machine in more special covering.
The existing sand machine nozzle that covers includes main body, covers sand plate, and body is threaded in and covers on sand plate, and the upper end of body is connected with
Logical sand device, this is provided with the logical sand hole passing through for molding sand in vivo.During use, logical sand device is connected with the bucket of penetrating covering sand machine, real
Now cover sand.The shortcoming of this structure is：Cover after sand machine completes to cover 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 relatively
Height, dropping can solidify in the molding sand on mould is bonded on mould the wave on the one hand causing precoated sand it is impossible to reuse
Take, on the other hand the molding sand of solidification destroys production environment, makes troubles to the cleaning of workman.
Utility model content
This utility model is intended to provide one kind to cover sand machine nozzle, to reduce dropping of precoated sand in nozzle.
Cover sand machine nozzle in this programme, including logical sand device, cover sand plate and main body, described main body screw is connected to and covers sand
On plate, in main body, it is provided with logical sand hole, the upper end of main body is connected with described logical sand device, and the lower end of described main body is provided with and leads to sand hole
Coaxial shoulder hole, the aperture of this shoulder hole is near logical sand hole；Described shoulder hole female thread is connected with a pressure cap, and silk pressure cap sets
There is through hole, ladder in the hole is provided with labyrinth plug, the lower end both sides of described labyrinth plug are equipped with support protrusion, the upper end both sides of labyrinth plug
It is equipped with spacing preiection, the upper end of described silk pressure cap supports described labyrinth plug to make the macropore nose end phase of spacing preiection and shoulder hole
Support.
Operation principle：The spacing preiection held beyond the Great Wall due to labyrinth and the macropore nose end of shoulder hole are offseted, so aperture and fan
The space accommodating molding sand is left, the lateral dimension of labyrinth plug is less than part and the shoulder hole macropore inwall of spacing preiection between the plug of palace
Between leave gap, so that molding sand passes through；Molding sand enters the logical sand hole in main body under high pressure effect by logical sand device, and then
Carry out covering sand by the lower end of logical sand hole, the change in displacement of molding sand is：Molding sand enters the little in the hole of shoulder hole, type by logical sand hole
Sand bypasses the lower section of the gap arrival labyrinth plug from side for the labyrinth plug, projects 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 itself, so in the case of stress-free, the bottom shape of molding sand and labyrinth plug
Become an angle of repose, molding sand cannot flow out from the side clearance of labyrinth plug in the presence of self gravitation, so serving leakproof
Effect.
Beneficial effect：Technique scheme compared to the prior art, nozzle after completing to penetrate sand, labyrinth beyond the Great Wall side molding sand
Filled in by labyrinth and stop it is impossible to flow out, a small amount of molding sand being only located at labyrinth plug lower section flows out, and effectively reduces molding sand and drops,
While avoiding waste, also mitigate the destruction that molding sand brings to production environment.
Further, described logical sand device includes sand block cap, and described sand block cap thread is connected in main body, in described sand block cap
Have and lead to the blind hole that sand hole communicates, in sand block cap, be additionally provided with the transverse holes crossing blind hole.This transverse holes is used for and covers sand machine
Penetrating bucket and be connected and carrying out logical sand, molding sand passes through transverse holes entrance blind hole, and hence into logical sand hole, molding sand can by horizontal bend
Play cushioning effect, effectively slow down the flowing velocity that molding sand produces because of inertia, prevent molding sand local flow excessive velocities, lead to
Penetrate sand uneven.
Further, the end of described sand block cap and cover and be provided with packing ring between sand plate, packing ring in sand block cap and covers squeezing of sand plate
Pressure deformation, increases sand block cap and covers thrust between sand plate, and then increase the frictional resistance of sand block cap, realize sand block cap
Loosen；And, it is to avoid sand block cap and cover sand plate directly contact, prevent sand block cap and cover crimp between sand plate hard material,
Cause locked.
Further, the lower end of described silk pressure cap is provided with cannelure, is provided with sealing ring in this cannelure；The nozzle covering sand machine is
It is arranged on swage surface, setting sealing ring and swage surface engagement are to increase the sealing penetrating sand.
Brief description
Fig. 1 covers the structural representation of sand machine nozzle embodiment for this utility model；
Fig. 2 is the structural representation of main body in Fig. 1；
Fig. 3 is the structural representation of labyrinth plug in Fig. 1；
Fig. 4 is the overlooking the structure diagram of Fig. 3.
Specific embodiment
Below by specific embodiment, this utility model is described in further detail：
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：
Cover sand machine nozzle, include 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；It is machined with logical sand hole 21, the upper end of main body 2 and logical sand dress in main body 2
Put connected, logical sand device is connected with the bucket of penetrating covering sand machine.
Logical sand device includes sand block cap 3, and sand block cap 3 is threaded on the body 2, the lower end of sand block cap 3 and sand ejection board it
Between packing ring 4 is installed.Have the blind hole 32 communicating with the logical sand hole 21 of main body 2 in sand block cap 3, sand block cap 3 is additionally provided with and runs through
The transverse holes 31 of blind hole 32, the bucket of penetrating of penetrating sand machine is connected for leading to sand with transverse holes 31.
The lower end of main body 2 has and leads to the coaxial shoulder hole of sand hole 21 22, and the hole diameter of this shoulder hole 22 is more than logical sand
Hole 21, the macropore inwall of this shoulder hole 22 is provided with screw thread；The macropore screw-internal thread fit of shoulder hole 22 has a pressure cap 6, on silk pressure cap 6
Have 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 props up
Support raised 52, the upper end of support protrusion 52 and silk pressure cap 6 offsets, and so that labyrinth is filled in and leaves logical sand between 5 and the upper end of silk pressure cap 6
Gap.The both sides of this labyrinth plug 5 are machined with the spacing preiection 51 for installing, and spacing preiection 51 length of labyrinth plug 5 is equal to greatly
Bore dia.It is machined with cannelure on the bottom face of silk pressure cap 6, sealing ring 7 is installed in annular groove.
Operation principle：Labyrinth plug 5 is offseted due to the macropore nose end with shoulder hole 22, so staying between aperture and labyrinth plug 5
There is the space accommodating molding sand, between the side of labyrinth plug 5 and shoulder hole 22 macropore inwall, leave gap, so that molding sand passes through；Type
Sand enters the logical sand hole 21 in main body 2 under high pressure effect by logical sand device, and then is covered by the lower end of logical sand hole 21
Sand, the change in displacement of molding sand is：Molding sand enters the little in the hole of shoulder hole 22 by logical sand hole 21, and molding sand bypasses labyrinth plug 5 from side
The lower section of the gap arrival labyrinth plug 5 in face, projects 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 itself is not too strong, so in the case of stress-free, molding sand cannot be from the presence of self gravitation
The side clearance of labyrinth plug 5 is flowed out, so serving the effect of leakproof.
Above-described is only embodiment of the present utility model, the general knowledge here such as known concrete structure and characteristic in scheme
Excessively describe.It should be pointed out that for a person skilled in the art, in the premise without departing from this utility model structure
Under, some deformation can also be made and improve, these also should be considered as protection domain of the present utility model, and these are all without impact
Effect and practical applicability that this utility model is implemented.This application claims protection domain should be with the content of its claim
It is defined, specific embodiment in description etc. records the content that can be used for explaining claim.
Claims (4)
1. one kind covers sand machine nozzle, including logical sand device, covers sand plate and main body, and described main body screw is connected to and covers on sand plate, main
Be provided with logical sand hole in vivo, the upper end of main body be connected with described logical sand device it is characterised in that：The lower end of described main body is provided with and leads to
The coaxial shoulder hole of sand hole, the aperture of this shoulder hole is near logical sand hole；Described shoulder hole female thread is connected with a pressure cap, silk pressure cap
It is provided with through hole, ladder in the hole is provided with labyrinth plug, the lower end both sides of described labyrinth plug are equipped with support protrusion, the upper end of labyrinth plug
Both sides are equipped with spacing preiection, and the upper end of described silk pressure cap supports described labyrinth plug to make the macropore nose end of spacing preiection and shoulder hole
Offset.
2. according to claim 1 cover sand machine nozzle it is characterised in that：Described logical sand device includes sand block cap, described gear
Sand cap thread is connected in main body, has and lead to the blind hole that sand hole communicates in described sand block cap, be additionally provided with sand block cap cross blind
The transverse holes in hole.
3. according to claim 2 cover sand machine nozzle it is characterised in that：The end of described sand block cap and covering sets 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 described silk pressure cap is provided with cannelure, should
It is provided with sealing ring in cannelure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620949413.9U CN205967306U (en) | 2016-08-26 | 2016-08-26 | It penetrates mouth to cover sand machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620949413.9U CN205967306U (en) | 2016-08-26 | 2016-08-26 | It penetrates mouth to cover sand machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205967306U true CN205967306U (en) | 2017-02-22 |
Family
ID=58035202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620949413.9U Expired - Fee Related CN205967306U (en) | 2016-08-26 | 2016-08-26 | It penetrates mouth to cover sand machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205967306U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106077521A (en) * | 2016-08-26 | 2016-11-09 | 重庆新红旗缸盖制造有限公司 | Cover sand machine nozzle |
-
2016
- 2016-08-26 CN CN201620949413.9U patent/CN205967306U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106077521A (en) * | 2016-08-26 | 2016-11-09 | 重庆新红旗缸盖制造有限公司 | Cover sand machine nozzle |
| CN106077521B (en) * | 2016-08-26 | 2018-03-27 | 重庆新红旗缸盖制造有限公司 | Cover sand machine nozzle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170222 Termination date: 20170826 |