Glass processing device and bottom machine therefor for manufacturing glass containers
A bottom machine is provided for a glass processing device to manufacture glass containers from glass tubes. The bottom machine includes one or a plurality of holding units for holding the glass container or glass tube, with the holding units being mounted so as to rotate around an axis of rotation of the bottom machine in order to convey the glass container or glass tube to various processing positions, a pressure source for supplying a gas flow, a duct system communicating with the pressure source for directing the gas flow to the holding units and for feeding the gas flow into the glass tube or into the glass container, with the duct system being designed to be free of gaps.
1. A bottom machine for a glass processing device for manufacturing glass containers from a glass tube, comprising:
one or a plurality of holding units for holding the glass container or the glass tube, with the holding units being mounted so as to rotate around their own axis and around an axis of rotation of the bottom machine in order to convey the glass container or the glass tube to various processing positions,
a pressure source for supply of a gas flow,
a duct system communicating with the pressure source for directing the gas flow to the holding units and for feeding the gas flow into the glass tube or into the glass container,
wherein the duct system is free of gaps and the duct system has a free end and the holding unit can rotate relative to the free end.
2. The bottom machine according to claim 1 , further comprising a rotor and a stator, with the holding units being arranged on the rotor and the duct system having a first number of subducts arranged on a rotor section and a second number of subducts arranged on a stator section, and a feedthrough section for the gap-free directing of the gas flow from the stator section to the rotor section.
3. The bottom machine according to claim 2 , wherein the stator and the rotor are designed such that they form a gap seal in the feedthrough section for sealing the duct system.
4. The bottom machine according to claim 3 , wherein the rotor is arranged along the axis of rotation of the bottom machine so as to overlap the stator.
5. The bottom machine according to claim 4 , wherein the rotor section and/or the stator section have a number of ring-shaped duct segments.
6. The bottom machine according to claim 5 , wherein the ring-shaped duct segments in the feedthrough section are open in the direction of the axis of rotation of the bottom machine and projections protrude into the ring-shaped duct segments to create the gap seal.
7. The bottom machine according to claim 4 , wherein the duct system has a control or regulating device for controlling or regulating the flow of gas through the duct system.
8. The bottom machine according to claim 4 , wherein the duct system has another pressure source for supplying a further gas flow, which can be engaged to join the gas flow by a pressure measurement and adjustment device.
9. The bottom machine according to claim 4 , wherein the bottom machine has eight subducts arranged on the stator section, eight ring-shaped duct segments, eight subducts arranged on the rotor section, and eight holding units.
10. The bottom machine according to claim 9 , wherein the duct system has eight control or regulating devices and eight pressure measurement and adjustment devices.
11. The bottom machine according to claim 3 , wherein the rotor is arranged radially outside of the stator.
12. The bottom machine according to claim 2 , wherein the first or second subducts have an extension running in a plane perpendicular to the axis of rotation of the bottom machine in the feedthrough section.
13. The bottom machine according to claim 12 , wherein the extension confines a first angle in a plane perpendicular to the axis of rotation of the bottom machine.
14. The bottom machine according to claim 2 , wherein the duct system has six subducts arranged on the stator section, eight subducts arranged on the rotor section, and eight holding units.
15. The bottom machine according to claim 14 , wherein five of the six subducts arranged on the stator section each have an extension.
16. The bottom machine according to claim 15 , wherein the subduct of the stator section that has no extension has a switching valve with a pressure measurement and adjustment device.
17. The bottom machine according to claim 1 , wherein the duct system has a control or regulating device for controlling or regulating the flow of gas through the duct system.
18. The bottom machine according to claim 1 , wherein the duct system has exactly one subduct arranged on the stator and a control or regulating device on the rotor for controlling or regulating the flow of gas through the duct system.
19. A glass processing device for manufacturing glass containers from a glass tube, comprising:
a parent machine, and
a bottom machine according to claim 1 .