Connection device for piezoelectric actuators of jacquard bars of knitting machines

A device for jacquard selection in warp knitting machines, comprising at least:

• one jacquard thread-guide bar comprising a supporting body provided with a plurality of housing seats configured and predisposed for engaging each removably and singularly a corresponding mounting body of one of piezoelectric actuators for carrying out a removable mounting of said one of said piezoelectric actuators onto the supporting body;
• said plurality of piezoelectric actuators comprising each a single mounting body to which one single piezoelectric body is mounted, each mounting body being engaged into a corresponding seat of said housing seats in an individually removable manner;
• and
• at least one connection device comprising a bearing body, a plurality of interconnection elements inserted into said bearing body and removably connected to a corresponding plurality of interface electric contacts of said plurality of piezoelectric actuators, at least one interconnection terminal for interconnecting said interconnection elements to control means of a knitting machine, and at least one fastening portion configured and predisposed for removably mounting the bearing body to said supporting body of said jacquard thread-guide bar, said connection device being removably mounted onto said supporting body of said jacquard thread-guide bar and removably connected to said plurality of piezoelectric actuators and said bearing body being distinct from said supporting body.