CN202684054U - Sand discharging device at bottom of sand box - Google Patents
Sand discharging device at bottom of sand box Download PDFInfo
- Publication number
- CN202684054U CN202684054U CN 201220351775 CN201220351775U CN202684054U CN 202684054 U CN202684054 U CN 202684054U CN 201220351775 CN201220351775 CN 201220351775 CN 201220351775 U CN201220351775 U CN 201220351775U CN 202684054 U CN202684054 U CN 202684054U
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- sand
- connecting plate
- sandbox
- hinge
- hook
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Abstract
The utility model belongs to the technical field of a sand discharging device, and particularly relates to the sand discharging device arranged at the bottom of a sand box in a foundry production line. The sand discharging device comprises a connecting plate, a V-shaped cross beam and a hook, wherein the connecting plate is fixedly connected to an outlet of a sand dropping hopper; a sand dropping hole is formed in the middle of the connecting plate; a supporting seat is arranged on one side of the connecting plate; the supporting seat is connected with one end of the V-shaped cross beam through a pin; a shaft is arranged at the other end of the V-shaped cross beam; the hook is used for hooking the shaft; the supporting seat fixed to the other side of the connecting plate is connected with the root part of the hook through the pin; a spherical hinge is arranged in the middle of the V-shaped cross beam; the upper end of the spherical hinge is a spherical part clamped between an upper hinge cover plate and a lower hinge cover plate; the lower end of the spherical hinge in a shaft-shaped part fixed on the V-shaped cross beam; a spring is also arranged between the spherical part and the V-shaped cross beam; a rubber ring seat is arranged on the edge of the sand dropping hole in the middle of the connecting plate; a sealing rubber ring is arranged on the outer side of the rubber ring seat; and the upper hinge cover plate is abutted against the sealing rubber ring so as to seal the sand dropping hopper.
Description
Technical field
The utility model belongs to and unloads sand device technique field, relates in particular to a kind of being arranged at and unloads the sand device at the bottom of the foundry production line sandbox.
Background technology
Founding casing with vacuum technology (EPC method) is that present casting industry is used the method for very extensively sending out, to be made into the only full mold apperance of poor metal contracts amount of, size in full accord with part shape with foamed plastics, through dip-coating fireproof bonding coating, put into " special shape mo(u)lding box " after the oven dry and carry out dry moulding, vibration ramming, then pouring into molten metal under vacuum negative pressure condition disappears the apperance gasification of being heated, after molten metal replaces foam plastics mould position cooling and shaping, and obtain the casting method of the metal parts consistent with the apperance shape.Lost foam casting is considered to the technology of the green casting of 21 century most probable realization because of the energy-saving, emission-reducing, environment friendly characteristics.After the founding casing with vacuum, behind the cooling certain hour, need " special shape mo(u)lding box " medium casting and dry sand are taken out, its medium casting is sent to cleaning, and dry sand removes to carry out sand and processes.
The taking-up of " special shape mo(u)lding box " medium casting and dry sand has two kinds of modes now:
A kind of is to adopt turnover machine to pour together " special shape mo(u)lding box " medium casting and dry sand in the vibrating shakeout machine separating casting and dry sand.The method weak point is: (1) dust generation is large, can't accomplish sealing, and it is influential to workshop condition greatly that the vibrating shakeout machine produces noise; (2) the simultaneously overturning of foundry goods and dry sand enters in the vibrating shakeout machine, and foundry goods also has certain temperature at this moment, adds the vibrations of vibrating shakeout machine, easily causes foundry goods to be damaged and produces blemish; (3) turnover machine is positioned in the production line, its course of work is dug sandbox and return exactly, just do and once dig and return at the every turnover machine of tinuous production sandbox place, this is very high to the mould turnover positioning accuracy request that resets, join again the vibrating shakeout machine, equipment is huge, and not only investment is large and energy consumption is higher, and the physical fault rate is higher.
Another kind of mode is to adopt " special shape mo(u)lding box " end to unload sand, keep motionless during the sandbox knockout, dry sand flows directly into from sandbox bottom and connects sand hopper and enter sand preparing system, and foundry goods is then stayed in the sandbox to hang out with erecting by overhang and put into the foundry goods working position apparatus, or is transported to fettling shop with catenary system.The method equipment investment is few, and energy consumption is low, and the production line sandbox is successively opened, and without orientation problem, produces dust and is easy to simultaneously carry out less dust removal process, and noise is low little on the workshop condition impact, is " work of end unloading system is unreliable " but weak point is also arranged.The sand device is unloaded at the end has simple cover plate to add bolt fixed mode, is suitable for nonproductive line production occasion, and other has unload the sand device a kind of end for the production of line " special shape mo(u)lding box ", as depicted in figs. 1 and 2.Its weak point is: (1) seal and hot sand have touch opportunity, although seal is heat-resisting silica gel ring, heat resisting temperature is limited, and seal is easily aging; (2) the seal seal operation is rigid contact, without buffering, very easily seal is damaged in the moving process, and causes poor sealing; (3) this mechanism is without buffering, and the relative motion part easily breaks off relations on the other hand in case after the wearing and tearing, one side can affect sealing, causes sand to leak.
The utility model content
The utility model unloads the sand device for solving at the bottom of the technical problem that exists in the known technology provides the little sandbox of a kind of long working life, good seal performance, the wearing and tearing of relative motion part.
The utility model for the technical scheme that solves the technical problem that exists in the known technology and take is: unload the sand device at the bottom of the sandbox and comprise and be fixed in the connecting plate that the outlet of knockout bucket, middle part are provided with sand-falling port, side at described connecting plate is provided with bearing, also comprise the V-arrangement crossbeam, one end of described V-arrangement crossbeam and described bearing pin joint, the other end are provided with axle, also comprise be used to the hook that catches on described axle, the root of this hook is pinned on the bearing that is fixed on described connecting plate opposite side; Middle part at described V-arrangement crossbeam is provided with spherical hinge, its upper end is axle shape section for globular part, lower end, its axis shape section is fixed on the described V-arrangement crossbeam, and described globular part is located between hinge upper cover plate and the hinge lower cover, also is provided with spring between described globular part and described V-arrangement crossbeam; Edge at described connecting plate middle part sand-falling port is provided with the cushion rubber seat, and its outside is provided with O-ring seal, and described hinge upper cover plate is against on the described O-ring seal knockout bucket is sealed.
Its advantage and good effect are: by adopting above-mentioned design, the utility model unloads the sand device at the bottom of a kind of sandbox of new structure is provided.Seal is installed on the outside of cushion rubber seat, has avoided contacting with the direct of hot sand, has prolonged the service life of seal, has reduced the generation of poor sealing phenomenon.Under the effect of sandbox inner vacuum, the hinge upper cover plate is upwarded pressure, and cooperates with O-ring seal, and sealing effectiveness is better.Hinge upper cover plate, hinge lower cover, spherical hinge and spring have consisted of movement parts wear-compensating mechanism, can make the hinge upper cover plate rotate the port that dynamically adapting cushion rubber seat and O-ring seal are determined at the globular part of spherical hinge.
Preferably: the root of described hook also is provided with the tail end of extension, and this tail end is mounted with extension spring.This extension spring applies backward pulling force to tail end, similar leverage, and hook stretches forward and is against on the axle, has effectively avoided situation about breaking off relations.
Preferably: the outside of described O-ring seal is arranged with the tensioning extension spring.The O-ring seal of tying tight prevents from coming off.
Preferably: adopt connecting bolt to connect between described hinge upper cover plate and the hinge lower cover.
Preferably: be arranged with copper sheathing at described axle.Copper sheathing is softer, and becomes the rolling movement state at axle, has reduced the wearing and tearing between axle and the hook.
Preferably: the cross section of described O-ring seal is Y shape.The sealing principle of similar high-pressure cooker sealing ring, when sandbox inside vacuumizes, outside pressure is greater than inside, and the O-ring seal of y-shaped cross-section opens, and lip props up lower limb and realizes sealing.
Description of drawings
Fig. 1 is the structural representation that the sand device is unloaded in prior art cheek and bottom;
Fig. 2 is the structure for amplifying schematic diagram of A part among Fig. 1;
Fig. 3 is the structural representation that the sand device is unloaded in the utility model cheek and bottom;
Fig. 4 is the structure for amplifying schematic diagram of B part among Fig. 3;
Fig. 5 is the upward view that the utility model unloads the sand device.
Among the figure: 1, bearing; 2, sealing ring; 3, crossbeam; 4, hook; 5, at the bottom of the sandbox; 6, knockout bucket; 7, V-arrangement crossbeam; 8, spherical hinge; 9, copper sheathing; 10, extension spring; 11, connecting plate; 12, cushion rubber seat; 13, hinge upper cover plate; 14, hinge lower cover; 15, connecting bolt; 16, O-ring seal; 17, tensioning extension spring.
The specific embodiment
For further understanding summary of the invention of the present utility model, Characteristic, hereby exemplify following examples, and cooperate accompanying drawing to be described in detail as follows:
Fig. 1 and Fig. 2 are that prior art cheek and bottom are unloaded the structural representation of sand device and unloaded the structure for amplifying schematic diagram of sand device.5 middle part is provided with knockout bucket 6 at the bottom of the sandbox, a side of 5 is provided with bearing 1 at the bottom of sandbox, and the middle part is provided with the end pin joint of crossbeam 3 of jut to bearing 1, and the other end of crossbeam 3 is provided with axle, 5 opposite side also is provided with hook 4 by bearing at the bottom of sandbox, and this hook 4 is used for catching on axle.Between jut and 6 outlets of knockout bucket, also be provided with sealing ring 2.
The sand device that unloads of this structure has many defectives: at first, the hot sand in sealing ring 2 and the sandbox directly contacts, easily aged deterioration, and service life is low; Secondly, the not auxiliary force application apparatus of hook 4 easily breaks off relations; At last, there is poorly sealed situation in jut after the long-term wearing and tearing of using.
See also Fig. 3 to Fig. 5, the utility model comprises and is fixed in the connecting plate 11 that knockout bucket 6 outlet, middle part are provided with sand-falling port, is provided with bearing 1 in a side of connecting plate 11.Also comprise V-arrangement crossbeam 7, an end of this V-arrangement crossbeam 7 and bearing 1 pin joint, the other end are provided with axle, are provided with copper sheathing 9 at axle.
Comprise that also be used to the hook 4 that catches on axle, the root of this hook 4 is pinned on the bearing that is fixed on connecting plate 11 opposite sides, the root of hook 4 also is provided with the tail end of extension, and this tail end is mounted with extension spring 10.10 pairs of tail ends of this extension spring apply pulling force backward, similar leverage, and hook 4 stretches forward and is against on the axle, has effectively avoided situation about breaking off relations.
Be provided with spherical hinge 8 at the middle part of V-arrangement crossbeam 7, its upper end is axle shape section for globular part, lower end, its axis shape section is fixed on the V-arrangement crossbeam 7, globular part is located between hinge upper cover plate 13 and the hinge lower cover 14, and wherein hinge upper cover plate 13 is connected both by connecting bolt 15 connections with the hinge lower cover.Between globular part and V-arrangement crossbeam 7, also be provided with spring.Above-mentioned parts have consisted of movement parts wear-compensating structure.
Edge at connecting plate 11 middle part sand-falling ports is provided with cushion rubber seat 12, and its outside is provided with O-ring seal 16, is arranged with tensioning extension spring 17 in the outside of O-ring seal 16.Hinge upper cover plate 13 is against on the O-ring seal 16 knockout bucket 6 is sealed.
Claims (6)
1. unload the sand device at the bottom of a sandbox, it is characterized in that: comprise being fixed in the connecting plate (11) that knockout bucket (6) exports, the middle part is provided with sand-falling port, side at described connecting plate (11) is provided with bearing (1), also comprise V-arrangement crossbeam (7), one end of described V-arrangement crossbeam (7) and described bearing (1) pin joint, the other end are provided with axle, also comprise be used to the hook that catches on described axle (4), the root of this hook (4) is pinned on the bearing that is fixed on described connecting plate (11) opposite side; Be provided with spherical hinge (8) at the middle part of described V-arrangement crossbeam (7), its upper end is axle shape section for globular part, lower end, its axis shape section is fixed on the described V-arrangement crossbeam (7), described globular part is located between hinge upper cover plate (13) and the hinge lower cover (14), also is provided with spring between described globular part and described V-arrangement crossbeam (7); Edge at described connecting plate (11) middle part sand-falling port is provided with cushion rubber seat (12), and its outside is provided with O-ring seal (16), and described hinge upper cover plate (13) is against described O-ring seal (16) and upward knockout bucket (6) is sealed.
2. according to unloading the sand device at the bottom of the sandbox claimed in claim 1, it is characterized in that: the root of described hook (4) also is provided with the tail end of extension, and this tail end is mounted with extension spring (10).
3. according to unloading the sand device at the bottom of the sandbox claimed in claim 1, it is characterized in that: the outside of described O-ring seal (16) is arranged with tensioning extension spring (17).
4. according to unloading the sand device at the bottom of the sandbox claimed in claim 1, it is characterized in that: adopt connecting bolt (15) to connect between described hinge upper cover plate (13) and the hinge lower cover (14).
5. according to unloading the sand device at the bottom of the sandbox claimed in claim 1, it is characterized in that: be arranged with copper sheathing (9) at described axle.
6. according to unloading the sand device at the bottom of claim 1 or the 3 described sandboxes, it is characterized in that: the cross section of described O-ring seal (16) is Y shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220351775 CN202684054U (en) | 2012-07-19 | 2012-07-19 | Sand discharging device at bottom of sand box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220351775 CN202684054U (en) | 2012-07-19 | 2012-07-19 | Sand discharging device at bottom of sand box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202684054U true CN202684054U (en) | 2013-01-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220351775 Expired - Fee Related CN202684054U (en) | 2012-07-19 | 2012-07-19 | Sand discharging device at bottom of sand box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202684054U (en) |
Cited By (5)
| 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 |
| CN109550896A (en) * | 2017-09-25 | 2019-04-02 | 高淳县龙宁精密铸造有限公司 | Cross-beam connecting plate evaporative pattern and its method for casting beam connecting plate |
| CN109967726A (en) * | 2017-12-28 | 2019-07-05 | 新东工业株式会社 | Release method and stripper apparatus |
| CN111375747A (en) * | 2018-12-28 | 2020-07-07 | 北京天哲消失模铸造技术有限公司 | Bottom-discharge sand shakeout system |
| CN114273620A (en) * | 2021-12-29 | 2022-04-05 | 滁州金诺实业有限公司 | Sand box mechanism for V-method sand burying of low-pressure casting of aluminum alloy castings |
-
2012
- 2012-07-19 CN CN 201220351775 patent/CN202684054U/en not_active Expired - Fee Related
Cited By (7)
| 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 |
| CN109550896A (en) * | 2017-09-25 | 2019-04-02 | 高淳县龙宁精密铸造有限公司 | Cross-beam connecting plate evaporative pattern and its method for casting beam connecting plate |
| CN109967726A (en) * | 2017-12-28 | 2019-07-05 | 新东工业株式会社 | Release method and stripper apparatus |
| CN109967726B (en) * | 2017-12-28 | 2022-06-28 | 新东工业株式会社 | Mold release method and mold release device |
| CN111375747A (en) * | 2018-12-28 | 2020-07-07 | 北京天哲消失模铸造技术有限公司 | Bottom-discharge sand shakeout system |
| CN111375747B (en) * | 2018-12-28 | 2024-05-24 | 北京天哲消失模铸造技术有限公司 | Bottom unloading and shakeout system |
| CN114273620A (en) * | 2021-12-29 | 2022-04-05 | 滁州金诺实业有限公司 | Sand box mechanism for V-method sand burying of low-pressure casting of aluminum alloy castings |
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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: 20130123 Termination date: 20170719 |