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Device for the Monitored Filling of Containers with Tablets

Inactive Publication Date: 2009-03-05
UHLMANN VISIOTEC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0005]It is an object of the present invention to provide a device for the monitored filling of containers with tablets which operates very reliably, which makes it possible for the tablets to be checked quantitatively very quickly during the filling process, and which does not unnecessarily remove good tablets during the filling process A corresponding method for the monitored filling of containers with tablets is also provided as a desired object of the invention.
[0013]In an additional preferred embodiment, the separating device is designed as an air blast unit, which directs a jet of air sideways against the selected falling tablet. This guarantees that the bad tablets are sorted out accurately without interfering with the operation of the filling device even when the filling operation is proceeding rapidly.

Problems solved by technology

Light barriers are used most frequently for this, but they can become dirty.
Nevertheless, any container which contains a defective tablet must be sorted out, which leads to a large number of unnecessarily rejected tablets.

Method used

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  • Device for the Monitored Filling of Containers with Tablets
  • Device for the Monitored Filling of Containers with Tablets
  • Device for the Monitored Filling of Containers with Tablets

Examples

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Embodiment Construction

[0021]FIG. 1 is a schematic view of an exemplary embodiment of the present invention for the monitored filling of containers with tablets. The device comprises a feed device 2 for tablets 4, such devices usually being designed as vibratory conveyors. The tablets have already been spaced apart from each other by feed device 2. From feed device 2, tablets 4 proceed to a free-fall section 6, through which they fall into containers 14 which may be by way of example, cans or bottles. Containers 14 are transported by a conveyor device 20. A sensor 12 for recording quantitative properties, especially the weights of tablets 4, is located in free-fall section 6. In the illustrated embodiment, sensor 12 is located in the upper area of free-fall section 6.

[0022]As will be described in greater detail below, sensor 12 transmits the measured values to a control unit 7, which is itself adapted to transmit immediately (i.e., preferably within approximately 10 ms), a control command to a separating ...

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Abstract

A device for the monitored filling of containers with tablets which includes a feed device for feeding tablets to a free-fall section and a capacitive sensor for checking each falling tablet in the free-fell section. In addition, the device includes a separating device for separating the bad tablets from the good tablets, the separating device being located below or underneath the sensor in the free-fall section. A control unit is included which is connected to the separating device and which actuates the separating device on the basis of the values supplied by the capacitive sensor.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority based on European patent applications EP 07 017 103.8, filed Aug. 31, 2007, and EP 08 014 637.6, filed on Aug. 18, 2008.FIELD OF THE INVENTION[0002]The invention pertains to a device for the monitored filling of containers with tablets.[0003]Strict quality criteria must be met during the filling of containers with pharmaceutical products. Various known types of sensors are used for monitoring the process of filling drug containers such as cans or small bottles with pharmaceutical products. These sensors are used to count the number of tablets as they are falling into the container and thus to guarantee that the container has been filled correctly. Light barriers are used most frequently for this, but they can become dirty. The use of electrostatic sensors has also been considered.[0004]A filling device with a capacitive measuring sensor is known from U.S. Pat. No. 4,461,363. The sensor checks the weight of...

Claims

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Application Information

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IPC IPC(8): B65B3/26
CPCB65B5/103B65B57/20B65B57/10
Inventor MERTENS, RICHARDPRINZ, HEINO
Owner UHLMANN VISIOTEC
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