| 摘要 |
A linking apparatus is provided for forming links in product-filled casing. The apparatus includes two rotatable pulley assemblies and two belt assemblies rotatably trained about the respective pulley assemblies. The belt assemblies are spaced apart from one another to define a linking station therebetween through which the casing passes. A plurality of pinching members are magnetically attracted into engagement with the belt assemblies for movement therewith. Each of the pinching members on the first belt assembly cooperates with a pinching member on the second belt assembly while passing through the linking station so as to engage and collapse the filled casing such that the casing can be twisted to form links. A control device is positioned in the path of the pinching members to hold and then release the members thereby controlling the spacing between pinching members within the linking station such that the length of links can be regulated. The method of linking product-filled casing includes rotatably directing the casing into the linking station between the pair of rotating belt assemblies wherein cooperating pairs of pinching members moving with the belt assemblies engage and collapse the casing therebetween, successively releasing the pairs of pinching members to pass through the linking station and engage the casing, and controlling the time interval between successive releases of pairs of pinching members to adjust the distance between the pinching members in the linking station, thereby varying the length of the links.
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