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Method and device for siliconing interior surface of hollow bodies

A hollow body and inner surface technology, applied to the surface coating liquid device, special surface, pre-treated surface, etc., can solve the problems of lack of speed, hollow body damage, lack of accuracy, etc.

Active Publication Date: 2017-07-18
SCHOTT AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has the disadvantage that the hollow body to be siliconized must be turned over and placed in an upside-down position prior to the spraying process
This additional step is technically cumbersome and time-consuming
Known systems for internal siliconization lack the required speed or lack the required precision in the positioning of the inverted hollow body, so that silicon fluid is sprayed, for example, not into the flask to be coated but onto risk on the orifice
Moreover, damage to the hollow body during the turning process or when inserting the nozzle into the hollow body cannot be ruled out

Method used

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  • Method and device for siliconing interior surface of hollow bodies
  • Method and device for siliconing interior surface of hollow bodies
  • Method and device for siliconing interior surface of hollow bodies

Examples

Experimental program
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Embodiment Construction

[0051] exist figure 1 shows schematically a coating plant 1 with a transport device 2 with a supply belt 3 on which the hollow bodies 10 to be coated stand and are transported with the openings 12 of the hollow bodies pointing upwards (see also figure 2 and 3 ).

[0052] The hollow bodies 10 first pass through the cleaning station 4 and are then accumulated in the accumulation section 5 . In the following separation station 6 , the hollow bodies 10 to be coated are separated from the group 16 of hollow bodies 10 by means of a separation device 7 , which has a separation gripper 8 , and are subsequently fed to a spraying station 20 .

[0053] In the spraying station 20, the nozzles 30 can be positioned vertically (double arrow P 1 )move. Nozzles 30 shown in dashed lines mark the spraying positions.

[0054] The hollow body 10 to be coated is positioned centrally in the coating station 20 by means of a positioning device 22 which has means 23 in the form of two positionin...

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PUM

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Abstract

Described are a method and a device for siliconing interior surfaces (14) of hollow bodies (10). The hollow body comprises at least an opening (12). A nozzle (30) is used to spray the interior surface (14) by silicone fluid mist (32). The method comprises: hollow bodies being vertically transported below nozzles (30) in sequence and upward openings (12) of the nozzles being positioned under the nozzles (30) in a centering manner; in spraying treatment, using the nozzles (30) to spray the interior surfaces of the corresponding hollow bodies (10) from above by the silicone fluid mist (32); after the spraying treatment, respectively vertically carrying away the silicon hollow bodies (10) from the nozzles (30).

Description

technical field [0001] The invention relates to a method for siliconizing the inner surface of a hollow body according to the preamble of claim 1 . The invention also relates to a coating device according to the preamble of claim 13 . Background technique [0002] In recent years it has been known to provide hollow cylinders which are internally siliconized and which are used, for example, as containers for primary packaging materials for pharmaceuticals. The container usually consists of an elongated hollow body which is cylindrical at least over a part of its axial length and which is provided with a silicone sliding layer in the region of the cylinder. [0003] In this pharmaceutical packaging it is necessary that the elastomeric closure, for example a plunger, which is introduced into the cavity, slide smoothly on the inner wall of the hollow body. Typical examples are syringe barrels for prefillable syringes, syringe bodies for cylindrical ampoules and capoles, plunge...

Claims

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Application Information

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IPC IPC(8): B05D7/22B05B13/00B05B7/02B05B12/18B05B12/32
CPCB05B7/02B05B13/00B05D7/227B05D5/08B05B7/0475B05B12/082B05B12/122B05B13/0609B05B13/069B05D1/02B05D3/0254B05D2201/00B05D2203/35B05B12/18B05B12/32B05B13/0271C03C17/004C03C17/30C03C2217/76C03C2218/112
Inventor D·斯蒂特C·克雷默P·黑策尔T·韦策尔M·尤斯特
Owner SCHOTT AG
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