Injection-moulding tool for the production of information carriers in disc form

16:

• The injection-moulding tool according to claim 15, wherein the cooling channels are supplied with the cooling medium via a single feed within the mirror block, wherein the cooling channels are arranged parallel to the surface of the mirror block that is facing the injection mould and are arranged in a region near the surface, and wherein the single feed is arranged in the mirror block in a region away from the surface and is connected to the cooling channels via branches.

17:

• The injection-moulding tool according to claim 16, wherein the feed is arranged in the mirror block essentially in a radial direction, and wherein the cooling channels are supplied with cooling medium via the branches, wherein the branches are arranged essentially perpendicular to the surface of the mirror block that is facing the injection mould.

18:

• The injection-moulding tool according to claim 17, wherein the feed has a larger flow cross section than one of the cooling channels and the branches, and wherein the cooling channels have identical flow cross sections, and wherein flow cross sections of the branches are adapted to cause flow in corresponding cooling channels to flow in different directions.

19:

• The injection-moulding tool according to claim 18, wherein the effective flow cross sections of the branches are set by local constrictions.

20:

• The injection-moulding tool according to claim 18, wherein the cooling channels arranged next to one another are alternately flowed through by cooling medium in a counter-running direction.

21:

• The injection-moulding tool according to claim 15, wherein a maximum of 8 cooling channels are arranged next to one another in at least one of the first and second mirror blocks, and wherein the cooling channels are situated from 4-10 mm underneath the respective surface of the first and second mirror blocks that are facing the injection mould, and wherein each of the cooling channels are arranged at the same distance from the surface.

22:

• The injection-moulding tool according to claim 15, wherein the first discharge is arranged in a region away from the surface of the first and second mirror blocks and wherein the first discharge is connected to the cooling channels via branches, wherein the first discharge discharges the cooling medium flowing in one direction in one half of the cooling channels, and a second discharge discharges the cooling medium flowing in the opposite direction in the other half of the cooling channels.

23:

• The injection-moulding tool according to claim 22, further comprising a single feed, wherein the first and second discharges or their respective branches are arranged in one of the first and second mirror blocks laterally alongside the feed, whereby inlets and outlets in the cooling channels interlock in a radial direction when all the cooling channels are constructed to follow circular lines and each of the cooling channels is situated the same distance from the surface of the first and second mirror blocks.

24:

• The injection-moulding tool according to claim 23, wherein the cooling medium is one of steam, water and organic compounds wherein the cooling medium is provided in the cooling channels via a single feed line from a single temperature-control unit.

26:

• The injection-moulding tool according to claim 25, wherein the second means is adapted to be electrically controlled or controlled with the aid of a temperature-control medium.

27:

• The injection-moulding tool according to claim 26, further comprising one of a sliding ring and a sliding bearing arranged concentrically between the first mirror block and the form ring enclosing the first mirror block.