Method for linking knitted fabric pieces and apparatus thereof
AssigneeAsahi Kasei Kogyo Kabushiki Kaisha
InventorsTatsuhiro Ishibashi, Yutaka Masushige, Shotaro Kai
Life of this patent
Estimating the term…
Abstract
A method for automatically linking corresponding knitted loops of two knitted fabric pieces, and an apparatus for implementing the method, wherein each knitted loop to be pierced in two knitted fabric pieces is pierced by a piercing needle, respectively, and the knitted loop in one knitted fabric piece held by the piercing needle of one knitted loops selecting and piercing device is transferred to a corresponding piercing needle already holding a corresponding knitted loop of another knitted fabric piece, and the two corresponding knitted loops are sewn by a sewing needle.
Claims14
Method for automatically linking two knitted fabric pieces comprising the following steps:
- (a) piercing at least one knitted loop to be first sewn together in a linking line between said two knitted fabric pieces with a piercing needle(s) of two knitted loop selecting and piercing devices arranged opposite to and spaced apart from each other and having a plurality of piercing needles capable of moving toward said knitted fabric piece, respectively;
- (b) detecting an arrangement of knitted loops in the knitted fabric piece downstream from the knitted loop pierced in said step (a), and calculating location data of a knitted loop to be next sewn;
- (c) sequentially guiding said knitted loop to be next sewn to a piercing position in accordance with said location data by a knitted fabric piece guiding means and sequentially piercing said each knitted loop at a piercing position by said piercing needles;
- (d) sequentially transferring knitted loops held on the piercing needle of one of the two knitted loops selecting and piercing devices to the piercing needle of the other knitted loops selecting and piercing device and piling the two knitted fabric pieces;
- and
- (e) sewing the knitted loops defined by the piercing needle of the two knitted fabric pieces by a sewing device.
A linking apparatus for linking two knitted fabric pieces comprising two knitted loops selecting and piercing devices arranged opposite to and spaced apart from each other and including a plurality of piercing needles capable of moving back to a piercing position by a movement in a same direction after removal from the piercing position, and capable of moving in a lengthwise direction of the piercing needle, at least one sensor for detecting an arrangement of knitted loops in the knitted fabric piece, an arithmetical unit for calculating a location data of the knitted loop to be sewn, at least one guiding means for guiding the knitted fabric piece such that the knitted loop to be sewn is moved to a piercing position and a means for raising the piercing needle into the corresponding knitted loop at the piercing position, a means for transferring the knitted loop held on the piercing needle of one of the two knitted loops selecting and piercing devices to the piercing needle holding the knitted loop in the other knitted loops selecting and piercing device and piling the two knitted fabric pieces together, and a sewing device arranged at a position downstream from the position in which the two knitted fabric pieces are piled and chain-stitching together each knitted loop of said piled two knitted fabric pieces.
Dependencies are inferred from the claim text.