GB2256385A - A sand shooting device for foundry moulding machine - Google Patents
A sand shooting device for foundry moulding machine Download PDFInfo
- Publication number
- GB2256385A GB2256385A GB9200204A GB9200204A GB2256385A GB 2256385 A GB2256385 A GB 2256385A GB 9200204 A GB9200204 A GB 9200204A GB 9200204 A GB9200204 A GB 9200204A GB 2256385 A GB2256385 A GB 2256385A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shooting
- shooting device
- core
- insert
- head
- Prior art date
- 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.)
- Withdrawn
Links
- 238000000465 moulding Methods 0.000 title claims description 8
- 239000004576 sand Substances 0.000 title description 7
- 239000000463 material Substances 0.000 claims description 5
- 210000003128 head Anatomy 0.000 description 14
- 238000000034 method Methods 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 210000003027 ear inner Anatomy 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
Classifications
-
- 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
- B22C15/24—Compacting by gas pressure or vacuum involving blowing devices in which the mould material is supplied in the form of loose particles
- B22C15/245—Blowing tubes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Casting Devices For Molds (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Description
22305 35 SHOOTING DEVICE FOR MOULDING MACHINES This invention relates to a
machine for the production of foundry moulds and cores, preferably a core shooting machine. The invention can be used in the foundry industry.
In order to prevent the core sand from trickling out of the shooting head of a core shooting machine, especially in the case of fine sand, it is known to use labyrinths in the discharge region of the shooting pallet. One disadvantage here is the fact that the labyrinths situated in the shot path obstruct the flowability of the core sand, thereby making it difficult to fill the core box.
Another known way of preventing uncontrolled or undesired outflow of the core moulding material is to arrange suction points on the shooting head cover which.produce a negative pressure in the shooting head. The disadvantage of this is that negative pressure must be applied to the entire shooting head. Particularly in the case of shooting heads which. after the shooting process, are in a sand receiving position different from the shooting - 2 position and are therefore necessarily open, the moulding material can only be prevented from trickling out by increasing the suction capacity.
0 In contrast to this,, the solution provided by the present invention allows for a reduction in the losses of moulding material, a reduction in cleaning cost operations and a saving of compressed air.
The object of the invention is to provide a shooting device for moulding machines, especially core shooting machines, which prevents the uncontrolled outflow of core or moulding sand, is self-cleaning and ensures ventilation of the upper core and mould contour.
is This problem is solved according to the invention in that an insert is arranged in the shooting channel of the shooting head of the shooting device. The insert is preferably designed as a cylinder or plate and consists of a fine-pored material.
Preferably, the channels are connected to a system for the supply or discharge of compressed air. Compressed air or negative pressure can thus be provided at the shooting head pallet as required. After completion of the shooting process, clean release of the shooting head from the core or moulding box is achieved and the shooting head pallet is cleaned automatically.
The invention will now be described in more detail,, by way of example only. with reference to the accompanying drawings, in which:
Figure 1 is a sectional view of a shooting device according to the invention.
In the illustrated arrangement,, there is shown a shooting device arranged on the upper part of a known core shooting machine (not shown) which will not be described further. The shooting device consists of a shooting cylinder (not shown) and a shooting head 1,, having a blowing plate 2 on its underside. A shooting channel 3 is situated centrally in the shooting head 1. An insert 4 is arranged in the shooting channel 3, said insert being designed either as a cylinder or as a plate and consisting of a porous material. Several channels 5 are situated in the insert 4. these being connected to a system for the supply or discharge of compressed air 6.
Before the commencement of the shooting process,, compressed air is directed via the system for the supply or discharge of compressed air 6 through the channels 5 into the insert 4 and any sand residue is removed from the shooting head opening 7. In this process,, core box 8 is already'pressed against the shooting head opening 7 and into the shooting position.
is The shooting process then follows. Shortly before the completion of the shooting process, the insert 4 is connected via the system for the supply or discharge of compressed air 6 to a discharge air line, thereby achieving ventilation of the upper core contour. Before 20 the beginning of the release of the shooting head 1 and the core box 8, negative pressure is provided via the system for the supply or discharge of compressed air 6, this operating until the end of the release process.
c c - 5 Clean release is effected at the separating point in this manner. In addition, no core sand trickles out. Separate cleaning of the blowing plate 2 or the top of the core box 8 is no longer necessary.
Claims (4)
1. A shooting device for moulding machines, especially core shooting machines, consisting of a shootng head and a shooting cylinder.. characterised in that an insert is arranged in the shooting channel of the shooting head.
2. A shooting device according to claim 1,, characterised in that the insert is a cylinder or plate made of a fine- pored material and is provided with channels therein.
3. A shooting device according to claims 1 and 2, wherein the channels are connectable to a system for the supply or discharge of compressed air thereto.
4. A shooting device substantially as herein described with reference to the accompanying drawing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4109382A DE4109382A1 (en) | 1991-03-21 | 1991-03-21 | SHOOTING DEVICE FOR MOLDING MACHINES, IN PARTICULAR CORE SHOOTING MACHINES |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9200204D0 GB9200204D0 (en) | 1992-02-26 |
| GB2256385A true GB2256385A (en) | 1992-12-09 |
Family
ID=6427930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9200204A Withdrawn GB2256385A (en) | 1991-03-21 | 1992-01-07 | A sand shooting device for foundry moulding machine |
Country Status (5)
| Country | Link |
|---|---|
| DE (1) | DE4109382A1 (en) |
| ES (1) | ES2053379B1 (en) |
| FR (1) | FR2674153B3 (en) |
| GB (1) | GB2256385A (en) |
| IT (1) | ITTO920062A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19737716C1 (en) * | 1997-08-29 | 1999-03-04 | Joachim Laempe | Procedure for cleaning a shooting head |
| CN105458188A (en) * | 2015-12-10 | 2016-04-06 | 广西玉柴机器股份有限公司 | Method for preventing sand accumulation in sand hopper of core shooter |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB797585A (en) * | 1953-09-18 | 1958-07-02 | Constructional Engineering Com | Improved core making machine |
| GB848852A (en) * | 1955-12-23 | 1960-09-21 | Fritz Hansberg | Improvements in and relating to foundry machines for the production of cores and moulds |
| GB988748A (en) * | 1962-03-23 | 1965-04-07 | Fritz Hansberg | Improvements in or relating to devices for producing foundry moulds and foundry cores and other moulding composition blanks |
| GB996740A (en) * | 1962-02-26 | 1965-06-30 | Osborn Mfg Co | Mold or core blowing machine |
| GB1437864A (en) * | 1973-05-09 | 1976-06-03 | Mec Fond Spa | Moulding head for foundry flasks or core boxes of the blown sand |
| EP0036434A1 (en) * | 1980-03-25 | 1981-09-30 | Eugen Dipl.-Ing. Bühler | Method and device for compacting casting moulds |
| EP0257257A2 (en) * | 1986-08-08 | 1988-03-02 | Joachim Dipl.-Ing. Laempe | Blowing-in device for a core shooter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES1000518Y (en) * | 1986-11-03 | 1988-11-16 | Arana Erana Agustin | IMPROVEMENTS INTRODUCED IN MACHINE BLOWING MACHINES |
-
1991
- 1991-03-21 DE DE4109382A patent/DE4109382A1/en not_active Withdrawn
-
1992
- 1992-01-07 GB GB9200204A patent/GB2256385A/en not_active Withdrawn
- 1992-01-29 IT IT000062A patent/ITTO920062A1/en unknown
- 1992-03-02 ES ES09200463A patent/ES2053379B1/en not_active Expired - Fee Related
- 1992-03-19 FR FR9203287A patent/FR2674153B3/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB797585A (en) * | 1953-09-18 | 1958-07-02 | Constructional Engineering Com | Improved core making machine |
| GB848852A (en) * | 1955-12-23 | 1960-09-21 | Fritz Hansberg | Improvements in and relating to foundry machines for the production of cores and moulds |
| GB996740A (en) * | 1962-02-26 | 1965-06-30 | Osborn Mfg Co | Mold or core blowing machine |
| GB988748A (en) * | 1962-03-23 | 1965-04-07 | Fritz Hansberg | Improvements in or relating to devices for producing foundry moulds and foundry cores and other moulding composition blanks |
| GB1437864A (en) * | 1973-05-09 | 1976-06-03 | Mec Fond Spa | Moulding head for foundry flasks or core boxes of the blown sand |
| EP0036434A1 (en) * | 1980-03-25 | 1981-09-30 | Eugen Dipl.-Ing. Bühler | Method and device for compacting casting moulds |
| EP0257257A2 (en) * | 1986-08-08 | 1988-03-02 | Joachim Dipl.-Ing. Laempe | Blowing-in device for a core shooter |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2053379A2 (en) | 1994-07-16 |
| ITTO920062A1 (en) | 1993-07-29 |
| ES2053379R (en) | 1996-10-16 |
| DE4109382A1 (en) | 1992-09-24 |
| FR2674153B3 (en) | 1993-09-17 |
| GB9200204D0 (en) | 1992-02-26 |
| ES2053379B1 (en) | 1997-06-01 |
| FR2674153A1 (en) | 1992-09-25 |
| ITTO920062A0 (en) | 1992-01-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102189231B (en) | Section box for decompressing and modelling | |
| US4724888A (en) | Method and apparatus for the production of flaskless foundry molds | |
| US3303535A (en) | Sand mold patterns formed of porous or permeable metal | |
| US2563643A (en) | Process for making cores | |
| JPH05123827A (en) | Device and method for molding a mold part for casting | |
| IL98556A (en) | Plastics processing machine and process for rapid change-over | |
| US4848440A (en) | Mold core setter with improved vacuum system | |
| GB2256385A (en) | A sand shooting device for foundry moulding machine | |
| US5965169A (en) | Mold for making synthetic resin molded foam and molding process using the same | |
| US5069268A (en) | Basin former for a matchplate molding machine | |
| US3046187A (en) | Apparatus and method for making molded pulp articles having holes therethrough | |
| US3066363A (en) | Core box for sand cores | |
| US2876508A (en) | Mold-forming apparatus and method | |
| JPH1157968A (en) | Vacuum die casting equipment | |
| EP0802004B1 (en) | A method of filling cores with molding sand | |
| US5343928A (en) | Two-piece liner for use in a matchplate molding machine | |
| JP3097975B2 (en) | Gate cleaning device | |
| CA1338547C (en) | Process for producing mouldings | |
| JPS59107746A (en) | Forming device for vertically split casting mold by gas mold | |
| JP2798527B2 (en) | Method and apparatus for degassing mold in injection mold casting machine | |
| JPH0646594Y2 (en) | Core molding machine | |
| SU982841A1 (en) | Moulding machine for producing casting moulds | |
| KR970005362B1 (en) | Core manufacturing equipment | |
| GB2088763A (en) | Machine for making shell moulds and cores | |
| JP2971585B2 (en) | Core molding method and apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |