Needle support structure and needle guide bracket

A needle support structure, comprising an angle control plate, a needle grooved plate and a locking device,

• wherein the needle grooved plate includes a plurality of semi-open needle feeding channels, and the angle control plate is fitted to the needle grooved plate to form closed needle feeding channels, a first end of at least one of the closed needle feeding channels being a needle introduction port, and a second end of the at least one of the closed needle feeding channels being a needle release port;
• the end where the needle introduction port is located is a needle feeding end of the angle control plate and the needle grooved plate;
• wherein the locking device comprises a first clamping part and a second clamping part, the first clamping part being rotatably connected to the angle control plate, and the second clamping part being fixedly connected to the needle grooved plate, wherein the first clamping part comprises a driving hand position, which is located at the needle feeding end of the angle control plate;
• by pulling the driving hand position, the first clamping part can move between a first position and a second position, thereby enabling the clamping and unclamping of the first clamping part and the second clamping part;
• the angle control plate comprises a first needle feeding plate, a first plate surface of which is a needle feeding wall;
• a first side end of the first needle feeding plate is provided with a first retaining wall and a second retaining wall extending in a direction away from the first needle feeding plate along a first plane in which the first needle feeding plate is located, and a space is arranged between the first retaining wall and the second retaining wall to form a first notch;
• the second clamping part comprises a buckle plate, when the needle feeding wall of the first needle feeding plate is fitted to a first plate surface of a second needle feeding plate, the buckle plate is inserted into the first notch, and abuts against the first retaining wall and the second retaining wall.