Classifications

• • C—CHEMISTRY; METALLURGY
  • C03—GLASS; MINERAL OR SLAG WOOL
  • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
  • C03B9/00—Blowing glass; Production of hollow glass articles
  • C03B9/30—Details of blowing glass; Use of materials for the moulds
  • C03B9/34—Glass-blowing moulds not otherwise provided for
  • C03B9/347—Construction of the blank or blow mould
• • C—CHEMISTRY; METALLURGY
  • C03—GLASS; MINERAL OR SLAG WOOL
  • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
  • C03B9/00—Blowing glass; Production of hollow glass articles
  • C03B9/30—Details of blowing glass; Use of materials for the moulds
  • C03B9/32—Giving special shapes to parts of hollow glass articles
  • C03B9/335—Forming bottoms to blown hollow glass articles; Bottom moulds
• • C—CHEMISTRY; METALLURGY
  • C03—GLASS; MINERAL OR SLAG WOOL
  • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
  • C03B9/00—Blowing glass; Production of hollow glass articles
  • C03B9/30—Details of blowing glass; Use of materials for the moulds
  • C03B9/34—Glass-blowing moulds not otherwise provided for
  • C03B9/344—Bottom moulds

Definitions

• the subject of the invention is a mould with an internal shaping core for manufacturing thin-walled blown glass objects.
• the essence of the inventive solution is a split metal multiple use mould with a free division axis having a monolithic model in a diversified shape represented inside, which is additionally ensured by a shaping core introduced inside the mould, which is fastened and stabilized in the desired spatial position in the seat or in the mould lock.
• a cavity is created in the mould which is to be filled with the plastified glass bulb introduced into the mould which, after being fully blown, shall take the shape of the inside ofthe mould together with the core fastened in the cavity.
• the solution has numerous advantages, among which are: elimination of complicated and time-consuming operations both in the manufacturing process itself, as well as during the additional operations of assembling and connecting two or more elements produced separately in order to obtain a final complex figure made of thin-walled blown glass.
• the multiple use metal mould with a free division axis with a monolithic model in a diversified shape represented inside together with a shaping core fastened and spatially stabilized in it permits to significantly broaden the assortment of products made of thin- walled blown glass and especially such products as Christmas tree decorations or other decorations manufactured using this technology in one technological operation of full blowing of figures complicated as far as their surface and spatial construction are concerned.
• the metal mould with a free division axis and an internal shaping core for manufacturing of thin-walled blown glass products consists of at least two parts in the form of a closed bowl or a box where at least one shaping core spatially stabilised through being fixed in the seat or in the lock inside the mould is placed.
• the mould has an opening where the stay of the raw, plastified glass bulb is inserted through which the air required to blow and to shape the hot glass bulb inside the mould is transported.
• the shaping core in the mould with a defined and required shape shapes the blown up glass bulb heated up to a temperature in which it is possible to fo ⁇ n the required shapes, gives the final shape to the bulb introduced into the mould.
• the shaping core is placed in one or in more seats inside the mould in such a way as to facilitate the opening of the particular parts of the mould and the removal o the shaping core or cores without destroying the surface ofthe product thus formed, its removal from the mould in a permanent shape blown according to the mould and the shaping core.
• fig. 1 presents the cross- section through the assembled mould with a shaping core inside
• fig. 2 presents the cross- section through an open mould without the shaping core
• fig. 3 presents a finished product obtained after the opening ofthe mould and the removal o the shaping core.
• the metal mould with a free division axis consists of two semi-moulds: semi-mould 1 and semi-mould 2 which, after being assembled, consist a whole and which have a circumferential seat 5 for the installation of the shaping core 3 and stabilising it in a desired spatial position which is to be additionally ensured by the central seat 6.
• the mould has an opening where a stay 4 is to be placed which is used for blowing in the air that forms the hot glass bulb to the shape 8 it will eventually take from the inside of the metal mould and the shaping core installed in it.
• the final product produced in a mould with the shaping core is obtained in such a way that the shaping core is inserted in one semi-mould and placed in a desired position, it is stabilised in the seat or the lock, then the glass bulb, heated up to the temperature that enables its shaping, is introduced into thus prepared assembly. Then the stay is placed in the stay opening, the mould is closed with the other semi-mould and then the bulb is blown until the mould cavity is completely filled and the desired figure is obtained. Following the blowing the above actions are performed in a reverse order, i.e.
• the closing part of the mould is opened, the core and the blown product, shaped according to the cavity where the hot glass bulb was blown are removed, the bulb is annealed and after cooling its handed over for further processing, such as silvering, painting, glittering and ' other decorative activities.

Landscapes

• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Manufacturing & Machinery (AREA)
• Materials Engineering (AREA)
• Organic Chemistry (AREA)
• Physics & Mathematics (AREA)
• Geometry (AREA)
• Table Devices Or Equipment (AREA)
• Moulds For Moulding Plastics Or The Like (AREA)
• Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=20076921

Family Applications (1)

Country Status (5)

Cited By (1)

Citations (2)

• 2000
  • 2000-06-27 PL PL341086A patent/PL193810B1/pl not_active IP Right Cessation
  • 2000-11-28 CZ CZ20023910A patent/CZ20023910A3/cs unknown
  • 2000-11-28 EP EP00978136A patent/EP1294648A1/en not_active Withdrawn
  • 2000-11-28 SK SK1736-2002A patent/SK17362002A3/sk unknown
  • 2000-11-28 WO PCT/PL2000/000091 patent/WO2002000560A1/en not_active Ceased

Patent Citations (2)

Also Published As

Similar Documents

Legal Events