CN205236977U - Vacuum disappearance sand bottom of case neglected loading is put - Google Patents
Vacuum disappearance sand bottom of case neglected loading is put Download PDFInfo
- Publication number
- CN205236977U CN205236977U CN201521118162.1U CN201521118162U CN205236977U CN 205236977 U CN205236977 U CN 205236977U CN 201521118162 U CN201521118162 U CN 201521118162U CN 205236977 U CN205236977 U CN 205236977U
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- funnel
- evaporative pattern
- sandbox
- sealing block
- pattern sandbox
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Abstract
The utility model discloses a vacuum disappearance sand bottom of case neglected loading is put is applied to the lost pattern casting field that disappears, and the bottom of installing at disappearance sand case is put to this end neglected loading, and it includes disappearance sand case, funnel, seals piece, steel sheet and pivot, the bottom plate of disappearance sand case includes upper plate and lower plate, going up along fixed connection of upper plate and funnel, the lower fixed connection that follows of lower plate and funnel, the lower edge of funnel becomes the face seal with the surface of sealed piece, sealed piece and steel sheet fixed connection, steel sheet and pivot are through two backup pad fixed connection, the pivot is opened or closed funnel through the sealed piece that the backup pad drove on the steel sheet by the fixed support location that sets up on disappearance sand case lower plate, pivot rotation, the utility model discloses simple structure, convenient operation, the mould turnover equipment investment is saved to potential safety hazard when having eliminated the mould turnover, and energy saving power has necessity of wideling popularize in trades concerned production.
Description
Technical field
The utility model belongs to lost foam casting field, relates to leakage device at the bottom of a kind of molding sand of alternative evaporative pattern turnover machine.
Background technology
Lost foam casting is called again founding casing with vacuum, is a kind of casting method that cavityless casting is combined with the moulding of V method. Evaporative pattern sandbox adopts mould turnover method or repaking mechanism more, and the molding sand in sandbox and foundry goods are routed up from sandbox. Mould turnover needs turnover machine or relevant hoisting mechanism, has equipment investment and maintenance issues, also has certain security risk and equipment fault.
For reducing power consumption and security risk, patent No. CN201310725652.7 name has been called " a kind of negative pressure lost foam sandbox that is provided with wicket " utility model a kind of sandbox of lateral opening, molding sand can be flowed out by two wickets from the side, it has two problems, the one, after sandbox repeatedly uses, because the reasons such as distortion and molding sand wearing and tearing cause opening sealing bad, cannot ensure the vacuum in sandbox, when serious, because gas leakage causes crush, foundry goods cannot moulding; The 2nd, this opening is only suitable for the sandbox less in size, is unsuitable for the knockout of larger-size sandbox.
Utility model content
The technical problem that the utility model solves has been to provide leakage device at the bottom of a kind of evaporative pattern sandbox, at the bottom of this evaporative pattern sandbox, leakage device is simple in structure, cost of manufacture is low, easy to operate, investment and the maintenance of repaking mechanism are avoided, in the situation that ensureing sandbox vacuum, molding sand is wherein flowed out smoothly, reduce Relict Sand amount.
For solving above technical problem, the technical scheme that the utility model adopts is:
The utility model comprises evaporative pattern sandbox, funnel, sealing block, steel plate and rotating shaft, the base plate of described evaporative pattern sandbox comprises upper plate and lower shoe, the upper edge of described upper plate and funnel is fixedly connected with, the lower edge of described lower shoe and funnel is fixedly connected with, the lower edge of described funnel becomes face sealing with the outer surface of sealing block, described sealing block is by being fixedly connected with steel plate, described steel plate is fixedly connected with by two gripper shoes with rotating shaft, described rotating shaft is located by the support being fixedly installed on evaporative pattern sandbox lower shoe, rotating shaft rotation drives opening or closed funnel of sealing block on steel plate by gripper shoe.
Improvement of the present utility model is that described sealing block is that flexible elastomeric material is made, and is shaped as Rotary-table, and the lower edge of funnel is the conical surface, and the Rotary-table curved surface of described sealing block contacts with the conical surface seal on edge under funnel.
Further improvement of the utility model is that the upper edge of described funnel is not higher than the upper plate of evaporative pattern sandbox, and the lower shoe of lower edge and evaporative pattern sandbox is equal or stretch out lower shoe, is provided with pneumatics airduct along knockout place down.
Further improvement of the utility model is that described rotating shaft rotates in the hole of support, and its anglec of rotation is not less than 120 °.
Further improvement of the utility model is that described rotating shaft stretches out outside evaporative pattern sandbox, described in stretch out evaporative pattern sandbox sidewall outer surface be provided with extension spring.
On the lower shoe that is further described evaporative pattern sandbox bottom of the present utility model, be fixed with I-steel.
Further improvement of the utility model is that described sealing block is fixedly connected with by bolt, nut with steel plate.
Owing to having adopted above technical scheme, the beneficial effect that the utility model is obtained is:
1) do not adopt turnover machine or repaking mechanism, save energy source and power, saved mould turnover equipment investment;
2) simple in structure, there is not mould turnover maintenance of equipment, save turnover machine maintenance cost;
3) the utility model is simple to operate, the potential safety hazard while having stopped mould turnover operation;
4) sealing surface of funnel and rubber sealing block has avoided molding sand to wash away, and can ensure the long-term sealing effectiveness using, and has ensured the vacuum of sandbox;
5) adopt this sand leakage device, during for intricate casting moulding, in sandbox, arrange that vacuumizing flexible pipe provides convenience. Do not damage and vacuumize flexible pipe because leak sand when operation, and when mould turnover operation, molding sand or foundry goods often destroy the vacuum hose in sandbox, once, vacuumizing flexible pipe need to change or keep in repair once mould turnover.
6) this sand leakage device is applied widely, both can be applied to single case molding flask, also can be applied to production line sandbox.
The upper plate of funnel of the present utility model and sandbox and lower shoe sealing, seal between the lower edge of funnel and sealing block, ensured the vacuum in evaporative pattern sandbox, improves the quality of foundry goods, the generation of stopping crush accident. Rotating shaft drives sealing block to rotate, and realizes the folding of molding sand funnel, reaches the object of leaking sand and sealing.
The rotating shaft anglec of rotation is not less than 120 °, can avoid molding sand damage to sealing block sealing surface in the time of knockout, under described funnel, be provided with pneumatics airduct along sand-falling port place, the dust on convenient cleaning sealing block, to extend the service life of sealing block, ensure the sealing of funnel and sealing block. Sealing block adopts elastomeric material to make, and has certain elasticity, and its sealing effectiveness is better.
In order to facilitate sandbox to add sand jolt ramming on plain bumper, there is I-steel at the lower shoe bottom welding of sandbox, for the rotation of bottom sand leakage device sealing block provides sufficient space.
For ease of operation, the rotating shaft of sandbox bottom is stretched out outside sandbox. In off position, due to the deadweight of gripper shoe, steel plate and sealing block, can automatically open, so stretch out on the corresponding side plate in sandbox bottom and design locking mechanism in rotating shaft, as modes such as ratchet, spring, bolt, wedges, ensure that sealing block contacts excellent sealing with edge under funnel in use.
For the larger sandbox of sandbox bulk, can increase end leakage device quantity, end leakage device is symmetrically distributed, and one can leak sand fast, and two can reduce remaining sand amount.
Brief description of the drawings
Fig. 1 is the main TV structure schematic diagram of the utility model;
Fig. 2 is the right TV structure schematic diagram of the utility model folding condition;
Fig. 3 is steel plate of the present utility model, gripper shoe, rotating shaft annexation structural representation.
Wherein, 1-sandbox, 2-support, 3-rotating shaft, 4-I-steel, 5-sealing block, 6-bolt, 7-nut, 8-funnel, 9-upper plate, 10-lower shoe, 11-steel plate, 12-gripper shoe, 13-pneumatics airduct.
Detailed description of the invention
Leakage device at the bottom of a kind of evaporative pattern sandbox, structure is as Fig. 1, 2, shown in 3, it comprises evaporative pattern sandbox 1, funnel 8, sealing block 5, steel plate 11 and rotating shaft 3, the base plate of described evaporative pattern sandbox 1 comprises upper plate 9 and lower shoe 10, the upper edge of described upper plate 9 and funnel 8 is fixedly connected with, the lower edge of described lower shoe 10 and funnel 8 is fixedly connected with, the lower edge of described funnel 8 becomes face sealing with the outer surface of sealing block 5, described sealing block 5 is by being fixedly connected with steel plate 11, described steel plate 11 is fixedly connected with by two gripper shoes 12 with rotating shaft 3, described rotating shaft 3 is located by the support 2 being fixedly installed on evaporative pattern sandbox 1 lower shoe 10, rotating shaft 3 is rotated by gripper shoe 12 and is driven opening or closed funnel 8 of sealing block 5 on steel plate 11.
Described sealing block 5 is made for flexible elastomeric material, is shaped as Rotary-table, and the lower edge of funnel 8 is the conical surface, and the conical surface seal on 8 times edges of the Rotary-table curved surface of described sealing block 5 and funnel contacts.
The upper edge of described funnel 8 is higher than the upper plate 9 of evaporative pattern sandbox 1, and the lower shoe 10 of lower edge and evaporative pattern sandbox 1 is equal or stretch out lower shoe 10, is provided with pneumatics airduct 13 along knockout place down.
Described rotating shaft 3 is rotated in the hole of support 2, and its anglec of rotation is not less than 120 °.
Described rotating shaft 3 is stretched out outside evaporative pattern sandbox 1, described in stretch out evaporative pattern sandbox 1 sidewall outer surface be provided with extension spring.
On the lower shoe 10 of described evaporative pattern sandbox 1 bottom, be fixed with I-steel 4.
Described sealing block 5 is fixedly connected with by bolt 6, nut 7 with steel plate 11.
Evaporative pattern sandbox 1 is bottom pumping formula sandbox, and Fig. 1 is seen in this leakage device installation site, end. The spacing of evaporative pattern sandbox 1 upper plate 9 and lower shoe 10 is 140mm, lower shoe 10 be of a size of 1.2 meters square, upper plate 9 is designed to the about 1:10 gradient to base plate center. Funnel 8 adopts circular, upper along external diameter 250mm, and bell mouth internal diameter 90mm is lower to external diameter 200mm, 120 °, epicone face cone angle, 90 ° of lower conical surface cone angles, funnel height 150mm. At Ф 250mm circular hole of the center of upper plate 9 intersection gas cutting, the circular hole of a Ф 200mm of lower shoe 10 center gas cuttings, by funnel 8 and upper plate 9 and lower shoe 10 sealings. For ensureing weldability, funnel 8 adopts mild steel manufacture, and funnel 8 is before installation, by upper and lower cone face process. When being installed, funnel 8 should notice that the upper edge of funnel 8 must not exceed upper plate 9, lower to extended lower shoe 10.
Two gripper shoe 12Yu centers are symmetrically welded with the circular steel plate 11 of bolt hole, then weld with rotating shaft 3, concrete connected mode is shown in Fig. 3. Then with bolt 6 nuts 7, steel plate 11 is fixedly connected with sealing block 5, sees Fig. 2. Be inserted in from the hole of support 2 at rotating shaft 3 two ends, and the conical surface of sealing block 5 is coordinated to location with the lower edge of funnel 8, support 2 is adjusted to rotating shaft 3 location, step positions, with lower shoe 10 spot welding. Because lower shoe 10 is not the plane of processing, in the time that support 2 is highly inappropriate, can ensure by the mode of adjusting pole 3 height or sealing block 5 height the excellent sealing that contacts on 8 times edges of sealing block 5 and funnel, then support 2 is welded on lower shoe 10.
The I-steel 4 that two width of sandbox bottom welding are 200mm, I-steel length 1300mm, spacing 900-1000mm, ensures that 5 rotations reserve enough spaces to sealing block.
8 times pneumatics airduct 13 is installed along sand-falling port place at funnel, when use, is turned while closing sealing block 5, the conical surface of sealing block 5 is purged. After sealing block 5 coordinates with funnel 8, the rotating shaft 3 of stretching out sandbox side adopts extension spring to fix. While leaking sand, remove extension spring, rotating shaft 3 leaks sand, avoids leak sand to impact sealing block 5.
In use procedure, when casting pouring complete cooling after, remove extension spring, open end leakage device, rotating shaft 3 leaks sand, molding sand directly falls into low hole, rises in sand storehouse by bucket, enters sand processing line, recycles. Foundry goods hangs out from sandbox, and circulation is to polishing operation.
In a word, the utility model is simple in structure, and cost of manufacture is low, easy operating, and the scope of application is wide.
Finally it should be noted that: above embodiment only, in order to the technical solution of the utility model to be described, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record previous embodiment is modified, or part technical characterictic is wherein equal to replacement; And these amendments or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of the utility model embodiment technical scheme.
Claims (7)
1. leakage device at the bottom of an evaporative pattern sandbox, it is characterized in that: comprise evaporative pattern sandbox (1), funnel (8), sealing block (5), steel plate (11) and rotating shaft (3), the base plate of described evaporative pattern sandbox (1) comprises upper plate (9) and lower shoe (10), described upper plate (9) is fixedly connected with the upper edge of funnel (8), described lower shoe (10) is fixedly connected with the lower edge of funnel (8), the lower edge of described funnel (8) becomes face sealing with the outer surface of sealing block (5), described sealing block (5) is fixedly connected with steel plate (11), described steel plate (11) is fixedly connected with by two gripper shoes (12) with rotating shaft (3), described rotating shaft (3) is by support (2) location being fixedly installed on evaporative pattern sandbox (1) lower shoe (10), rotating shaft (3) rotation drives the sealing block (5) on steel plate (11) to open or closed funnel (8) by gripper shoe (12).
2. leakage device at the bottom of a kind of evaporative pattern sandbox according to claim 1, it is characterized in that: described sealing block (5) is made for flexible elastomeric material, be shaped as Rotary-table, the lower edge of funnel (8) is the conical surface, and the Rotary-table curved surface of described sealing block (5) contacts with the conical surface seal on the lower edge of funnel (8).
3. leakage device at the bottom of a kind of evaporative pattern sandbox according to claim 2, it is characterized in that: the upper edge of described funnel (8) is not higher than the upper plate (9) of evaporative pattern sandbox (1), the lower shoe (10) of lower edge and evaporative pattern sandbox (1) is equal or stretch out lower shoe (10), the lower pneumatics airduct (13) that is provided with along knockout place.
4. leakage device at the bottom of a kind of evaporative pattern sandbox according to claim 1, is characterized in that: described rotating shaft (3) is rotated in the hole of support (2), and its anglec of rotation is not less than 120 °.
5. leakage device at the bottom of a kind of evaporative pattern sandbox according to claim 4, is characterized in that: described rotating shaft (3) is stretched out outside evaporative pattern sandbox (1), described in stretch out evaporative pattern sandbox (1) sidewall outer surface be provided with extension spring.
6. according to leakage device at the bottom of the arbitrary described evaporative pattern sandbox of claim 1-5, it is characterized in that: on the lower shoe (10) of described evaporative pattern sandbox (1) bottom, be fixed with I-steel (4).
7. leakage device at the bottom of a kind of evaporative pattern sandbox according to claim 1, is characterized in that: described sealing block (5) is fixedly connected with by bolt (6), nut (7) with steel plate (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521118162.1U CN205236977U (en) | 2015-12-30 | 2015-12-30 | Vacuum disappearance sand bottom of case neglected loading is put |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521118162.1U CN205236977U (en) | 2015-12-30 | 2015-12-30 | Vacuum disappearance sand bottom of case neglected loading is put |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205236977U true CN205236977U (en) | 2016-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521118162.1U Expired - Fee Related CN205236977U (en) | 2015-12-30 | 2015-12-30 | Vacuum disappearance sand bottom of case neglected loading is put |
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| Country | Link |
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| CN (1) | CN205236977U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105436434A (en) * | 2015-12-30 | 2016-03-30 | 邯郸慧桥复合材料科技有限公司 | Bottom leakage device for vacuum lost foam sand box |
-
2015
- 2015-12-30 CN CN201521118162.1U patent/CN205236977U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105436434A (en) * | 2015-12-30 | 2016-03-30 | 邯郸慧桥复合材料科技有限公司 | Bottom leakage device for vacuum lost foam sand box |
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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: 20160518 Termination date: 20201230 |