EP3700693A2 - Fixing system for a feeder sleeve - Google Patents

Fixing system for a feeder sleeve

Info

Publication number
EP3700693A2
EP3700693A2 EP18871008.1A EP18871008A EP3700693A2 EP 3700693 A2 EP3700693 A2 EP 3700693A2 EP 18871008 A EP18871008 A EP 18871008A EP 3700693 A2 EP3700693 A2 EP 3700693A2
Authority
EP
European Patent Office
Prior art keywords
feeder sleeve
cavity
fixing system
wall
nozzle
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.)
Granted
Application number
EP18871008.1A
Other languages
German (de)
French (fr)
Other versions
EP3700693A4 (en
EP3700693B1 (en
Inventor
Mehmet UZER
Nedim ACILKAN
Murat IPEK
Haydar KAHRAMAN
Guven YAVUZ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cukurova Kimya Endustrisi AS
Original Assignee
Cukurova Kimya Endustrisi AS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Cukurova Kimya Endustrisi AS filed Critical Cukurova Kimya Endustrisi AS
Publication of EP3700693A2 publication Critical patent/EP3700693A2/en
Publication of EP3700693A4 publication Critical patent/EP3700693A4/en
Application granted granted Critical
Publication of EP3700693B1 publication Critical patent/EP3700693B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
    • B22C9/088—Feeder heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Chain Conveyers (AREA)

Abstract

With the present invention, there is developed a fixing system suitable for use with the feeder sleeve comprising a linear cavity through which a fluid material can be passed for the feeding process and which is defined by the cavity wall, and the opening by which the cavity communicates with the outer environment. The fixing system comprises the nozzle suitable for being placed to the cavity by passing through the opening, being able to move into said cavity by the load applied during the moulding process, comprising the expansion at the end that is close to said feeder sleeve, and rubbing on the cavity wall while moving forward in the cavity to reduce the load applied to the feeder sleeve during the moulding process; the housing positioned at the end of the nozzle which is close to the feeder sleeve; the protective element comprising the bottom wall which is suitable for receiving the base of the feeder sleeve and is made of a more flexible material than the feeder sleeve, the side wall which is suitable for receiving the outer wall of the feeder sleeve and is made of a more flexible material than the feeder sleeve, the aperture which is located at the bottom wall and allows a fluid passage between the opening and the outer environment; the dampener element positioned so as to contact to the bottom wall of the protective element, being made of a more flexible material than the feeder sleeve, and comprising, at the middle part, the hole which is suitable for passage of the fluid, wherein the fluid is delivered through the opening by which the cavity communicates with the outer environment.

Description

FIXING SYSTEM FOR A FEEDER SLEEVE Technical Field
The present invention relates to a fixing system suitable for use with a feeder sleeve product. Prior Art
Nowadays, moulds, also known as feeder sleeves, are utilised in casting industry to perform casting process on metals. Said moulds include sand and various chemicals. The feeder sleeves are exothermic feeding auxiliary materials which are produced at various shapes and sizes by a preforming method, wherein the feeder sleeves are produced from a pre-prepared chemical mixture according to the desired exothermal degree.
With the developing technology, innovations are made for the casting production method, as well. Thanks to the high-pressure automatic moulding lines that are suited to serial production, quality castings are obtained in a quicker way. Consumables which are used at automatic moulding lines should inevitably keep up with this development. Therefore, rendering the use of a feeder at automatic moulding lines practical affects the production rate positively. A mini riser system, both functioning fully as a feeder and being capable of resisting to mechanical effects at the automatic moulding lines, improves the casting production rate and quality. The mini risers having a brittle structure is prevented from being damaged by the loads applied at high-pressure automatic moulding lines, thanks to the feeding fixers. Said fixers enable to fix the mini risers at a certain zone inside the sand mould. Patent document no. WO2017007433A1 discloses an exemplary feeding system which comprises feeding fixers. The feeding system disclosed in said document comprises a feeder sleeve, a neck piece which functions as a fixer, and a pin positioned so as to pass through said neck piece. With the effect of force applied during the moulding process, said neck piece moves at the vertical axis so as to be driven to the cavity provided within the feeder sleeve, and the impact applied by said pin to the upper part of the feeder sleeve as a result of its vertical movement causes the upper part of the feeder sleeve to open, thereby forming the casting transmission path. However, the patent document no. WO2017007433A1 does not mention about a characteristic of the neck piece or the pin that enables them to resist to the applied force. Therefore, the neck piece or the pin disclosed in said document do not contribute to decrease the load on the feeder sleeve and to protect the feeder sleeve.
Brief Description of Invention
With the present invention, there is developed a fixing system suitable for use with at least one feeder sleeve comprising a linear cavity through which a fluid material can be passed for the feeding process and which is defined by at least one cavity wall, and at least one opening by which said cavity communicates with the outer environment. Said fixing system comprises at least one nozzle suitable for being placed to the cavity by passing through said opening, being able to move into said cavity by the load applied during the moulding process, comprising at least one expansion at the end that is close to said feeder sleeve, and rubbing on said cavity wall while moving forward in said cavity to reduce the load applied to said feeder sleeve during the moulding process; at least one housing positioned at the end of said nozzle which is close to said feeder sleeve; at least one protective element comprising at least one bottom wall which is suitable for receiving the base of the feeder sleeve and is made of a more flexible material than the feeder sleeve, at least one side wall which is suitable for receiving the outer wall of the feeder sleeve and is made of a more flexible material than the feeder sleeve, at least one aperture which is located at said bottom wall and allows a fluid passage between the opening and the outer environment; at least one dampener element positioned so as to contact to the bottom wall of the protective element, being made of a more flexible material than the feeder sleeve, and comprising, at the middle part, at least one hole which is suitable for passage of the fluid, wherein the fluid is delivered through the opening by which said cavity communicates with the outer environment.
Thanks to the fixing system according to the invention, a system is obtained which, at the foundries in which high-pressure moulding lines are utilised, increases moulding rate and quality of the feeder sleeve by applying it directly on the mould model; eliminates fixing problems arising from the sleeve size and prevents the feeder sleeve from being damaged, the feeder sleeve having a brittle structure against the mechanical effects which are applied for the moulding process. Object of Invention
An object of the present invention is to develop a fixing system which provides to fix the feeder sleeve at a desired position on the mould. Another object of the present invention is to develop a fixing system which provides to reduce the load applied to the feeder sleeve during the moulding process.
Description of Drawings Exemplary embodiments of the fixing system according to the present invention are illustrated in the drawings, in which:
Figure 1 ; is a perspective of the nozzle comprised within the fixing system according to the present invention.
Figure 2; is a side sectional view of a nozzle comprised within the fixing system according to the present invention.
Figure 3; is a side sectional view of the nozzle comprised within the fixing system according to the present invention, before a load is formed on the sleeve.
Figure 4; is a side sectional view of the nozzle comprised within the fixing system according to the present invention, after a load is formed on the sleeve.
Figure 5; is a side sectional view of a feeder sleeve in use with the fixing system according to the present invention.
Figure 6; is a side sectional view of a protective element comprised withi fixing system according to the present invention.
Figure 7; is a perspective view of the protective element comprised within the fixing system according to the present invention.
Figure 8; is a side sectional view of the protective element, comprised within the fixing system according to the present invention, in use with a feeder sleeve. Figure 9; is a perspective view of a dampener element comprised within the fixing system according to the present invention.
All the parts illustrated in figures are individually assigned a reference numeral and the corresponding terms of these numbers are listed below:
Feeder sleeve (1)
Cavity (1 a)
Cavity wall (1 b)
Opening (1c)
Base (1 d)
Outer wall (1 e)
Housing (2)
Nozzle (3)
Expansion (3a)
Bottom wall (4)
Aperture (4a)
Side wall (5)
Protective element (6)
Dampener element (7)
Hole (7a)
Description of Invention In order to provide a quick and quality casting production at the high-pressure automatic moulding lines utilised for mass production of the castings, it is appropriate to use feeding systems in certain areas on the mould model. For the moulding process, on the purpose of enhancing the casting production rate and quality, it is important to use a feeding system which fully functions as a feeder and is able to resist to the mechanical effects on the automatic moulding line. Within this context, with the present invention there is developed a fixing system which provides to fix the brittle feeder sleeve at the feeding system at a desired position in the mould, and to prevent the feeder sleeve from being damaged by the load to which it is subjected during the moulding process. The fixing system according to the present invention, exemplary views of which are illustrated in Figures 1-9, is suitable for use with at least one feeder sleeve (1) an exemplary view of which is illustrated in Figures 1 and 5 and comprising a linear cavity (1 a) through which a fluid material can be passed for the feeding process and which is defined by at least one cavity wall (1 b), and at least one opening (1 c) by which said cavity (1 a) communicates with the outer environment, the fixing system comprising at least one nozzle (3) suitable for being placed to the cavity (1 a) by passing through said opening (1 c), being able to move into said cavity (1a) by the load applied during the moulding process, comprising at least one expansion (3a) at the end that is close to said feeder sleeve (1), rubbing on said cavity wall (1 b) while moving forward in said cavity (1 a) to reduce the load applied to said feeder sleeve (1) during the moulding process, and, preferably, being made of a metal material; at least one housing (2) positioned at the end of said nozzle (3) which is close to said feeder sleeve (1), and being suitable for receiving, preferably, a damping material; at least one protective element (6) comprising at least one bottom wall (4) which is suitable for receiving the base (1 d) of the feeder sleeve (1) and is made of a more flexible material (e.g. the ceramic fibre) than the feeder sleeve (1), at least one side wall (5) which is suitable for receiving the outer wall (1 e) of the feeder sleeve (1) and is made of a more flexible material (e.g. the ceramic fibre) than the feeder sleeve (1), at least one aperture (4a) which is located at said bottom wall (4) and allows a fluid passage between the opening (1c) and the outer environment; at least one dampener element (7) positioned so as to contact to the bottom wall (4) of the protective element (6), being made of a more flexible material (e.g. the ceramic fibre) than the feeder sleeve (1), and comprising, at the middle part, at least one hole (7a) which is suitable for passage of the fluid, wherein the fluid is delivered through the opening (1 c) by which said cavity (1 a) communicates with the outer environment.
In an exemplary embodiment of the invention, the feeder sleeve (1) is placed inside said protective element (6); said nozzle (3) is placed inside the cavity (1 a) provided within the feeder sleeve (1) and said dampener element (7) is placed so as to contact to the base (1 d) of the feeder sleeve (1). Then, together with the nozzle (3), the protective element (6) and the dampener element (7); the feeder sleeve (1) is fixed at a certain place inside the mould. Said nozzle (3) moves forward inside said cavity (1a), which is provided in the feeder sleeve (1), by the load applied to the feeder sleeve (1) during the moulding process. While the nozzle (3) moves forward, by the applied force, along the cavity (1 a) inside the feeder sleeve (1), the expansion (3a) provided at the end of the nozzle (3) which is close to said feeder sleeve (1) rubs on the cavity wall (1 b) inside the feeder sleeve (1), and prevents the feeder sleeve (1) from being damaged by damping a part of the load which is applied to the feeder sleeve (1) during the moulding process. After that, during compression of the mould, a compression force is formed on the feeder sleeve (1), the protective element (6) and the dampener element (7). Here, since the bottom wall (4) and the side wall (5) of the protective element (6) are made of a more flexible material than the feeder sleeve (1), said compression force is absorbed by said protective element (6) by means of forming a friction between the outer wall (1e) of the feeder sleeve (1) and the side wall (5) of the protective element (6); and thanks to the fact that the dampener element (7) compressed between the bottom wall (4) of the protective element (6) and the mould is made of a more flexible material (e.g. the ceramic fibre) than the feeder sleeve (1), a part of said compression force is also absorbed by said dampener element (7). Here, by means of the aperture (4a) comprised within said protective element (6) and the hole (7a) comprised within said dampener element (7), the metal in the fluid form during usage of the feeder sleeve (1) is enabled to be filled to the cavity (1 a) through said opening (1c) and be removed again when necessary.
In a preferred embodiment of the invention, porosity of said dampener element (7) is higher than that of said feeder sleeve (1). Thus, the dampener element (7) is able to stretch under the compression force.
In another preferred embodiment of the invention, said dampener element (7) is in the form of a hollow cylinder.
In a preferred embodiment of the invention, porosity of said protective element (6) is higher than that of said feeder sleeve (1). Thus, the protective element (6) is able to stretch under the compression force. In a further preferred embodiment of the invention, said protective element (6) is produced by vacuum forming production method. Therefore, the production process is able to be performed in a simple and practical way. In a preferred embodiment of the invention, the fixing system comprises at least one gasket positioned on said nozzle (3). Said gasket enables to increase the friction force, thus enabling to damp much more force. In another preferred embodiment of the invention, said nozzle (3) is in the form of a hollow cylinder.
Thanks to the fixing system according to the invention, a system is obtained which, at the foundries in which high-pressure moulding lines are utilised, increases moulding rate and quality of the feeder sleeve by applying it directly on the mould model; eliminates fixing problems arising from the sleeve size; and prevents the feeder sleeve from being damaged, the feeder sleeve having a brittle structure against the mechanical effects which are applied for the moulding process.

Claims

1. A fixing system suitable for use with at least one feeder sleeve (1) comprising a linear cavity (1a) through which a fluid material can be passed for the feeding process and which is defined by at least one cavity wall (1 b), and at least one opening (1c) by which said cavity (1a) communicates with the outer environment, characterized by comprising:
• at least one nozzle (3) suitable for being placed to the cavity (1a) by passing through said opening (1c), being able to move into said cavity (1a) by the load applied during the moulding process, comprising at least one expansion (3a) at the end that is close to said feeder sleeve (1), and rubbing on said cavity wall (1 b) while moving forward in said cavity (1a) to reduce the load applied to said feeder sleeve (1) during the moulding process;
• at least one housing (2) positioned at the end of said nozzle (3) which is close to said feeder sleeve (1);
• at least one protective element (6) comprising at least one bottom wall (4) which is suitable for receiving the base (1d) of the feeder sleeve (1) and is made of a more flexible material than the feeder sleeve (1), at least one side wall (5) which is suitable for receiving the outer wall (1e) of the feeder sleeve (1) and is made of a more flexible material than the feeder sleeve (1), at least one aperture (4a) which is located at said bottom wall (4) and allows a fluid passage between the opening (1 c) and the outer environment;
• at least one dampener element (7) positioned so as to contact to the bottom wall (4) of the protective element (6), being made of a more flexible material than the feeder sleeve (1), and comprising, at the middle part, at least one hole (7a) which is suitable for passage of the fluid, wherein the fluid is delivered through the opening (1c) by which said cavity (1a) communicates with the outer environment.
2. A fixing system according to Claim 1 , characterized in that said nozzle (3) is made of a metal material.
3. A fixing system according to Claim 1 , characterized by comprising at least one damping material which is placed inside said housing (2).
4. A fixing system according to Claim 1 , characterized by comprising at least one gasket positioned on said nozzle (3).
5. A fixing system according to Claim 1 , characterized in that said nozzle (3) is in the form of a hollow cylinder.
6. A fixing system according to Claim 1 , characterized in that said bottom wall (4) is made of ceramic fibre.
7. A fixing system according to Claim 1 , characterized in that said side wall (5) is made of ceramic fibre.
8. A fixing system according to Claim 1 , characterized in that the protective element (6) is made of a material porosity of which is higher than that of said feeder sleeve (1).
9. A fixing system according to Claim 1 , characterized in that said protective element (6) is produced by vacuum forming production method.
10. A fixing system according to Claim 1 , characterized in that said dampener element (7) is made of ceramic fibre.
11. A fixing system according to Claim 1 , characterized in that said dampener element (7) is made of a material porosity of which is higher than that of said feeder sleeve (1).
12. A fixing system according to Claim 1 , characterized in that said dampener element (7) is in the form of a hollow cylinder.
13. A fixing system according to Claim 1 , characterized in that the dampener element (7) is produced by vacuum forming production method.
EP18871008.1A 2017-10-26 2018-10-10 Combination of a fixing system with a feeder sleeve Active EP3700693B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2017/16582A TR201716582A2 (en) 2017-10-26 2017-10-26 Feeder shirt fixing system.
PCT/TR2018/050582 WO2019083484A2 (en) 2017-10-26 2018-10-10 Fixing system for a feeder sleeve

Publications (3)

Publication Number Publication Date
EP3700693A2 true EP3700693A2 (en) 2020-09-02
EP3700693A4 EP3700693A4 (en) 2021-04-28
EP3700693B1 EP3700693B1 (en) 2022-08-31

Family

ID=66247561

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18871008.1A Active EP3700693B1 (en) 2017-10-26 2018-10-10 Combination of a fixing system with a feeder sleeve

Country Status (5)

Country Link
EP (1) EP3700693B1 (en)
ES (1) ES2930360T3 (en)
PL (1) PL3700693T3 (en)
TR (1) TR201716582A2 (en)
WO (1) WO2019083484A2 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8400970D0 (en) * 1984-01-13 1984-02-15 Foseco Int Metal casting moulds
AU654047B2 (en) * 1991-10-03 1994-10-20 Masamitsu Miki Riser sleeve with neck-down core
GB0325134D0 (en) * 2003-10-28 2003-12-03 Foseco Int Improved feeder element for metal casting
DE102005025701B4 (en) * 2005-06-04 2007-03-08 GTP Schäfer Gießtechnische Produkte GmbH Feeder with yielding feeder base
GB0611430D0 (en) * 2006-06-09 2006-07-19 Foseco Int Improved feeder element for metal casting
CN203155947U (en) * 2013-03-05 2013-08-28 南通华东油压科技有限公司 Special casting head for manufacturing walking machinery motor cover
CN105522115B (en) * 2014-09-30 2017-12-19 济南圣泉倍进陶瓷过滤器有限公司 Feeding device and system and high pressure moulding method

Also Published As

Publication number Publication date
TR201716582A2 (en) 2019-05-21
EP3700693A4 (en) 2021-04-28
PL3700693T3 (en) 2023-01-02
WO2019083484A3 (en) 2019-06-06
WO2019083484A2 (en) 2019-05-02
ES2930360T3 (en) 2022-12-09
EP3700693B1 (en) 2022-08-31

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