Plastic bottle clamp for packaging machinery

The invention discloses a plastic bottle clamp for packaging machinery, and relates to the technical field of packaging machinery. The plastic bottle clamp comprises a bottle clamping plate; a bottle clamping opening of a semicircular structure is formed in one edge of the bottle clamping plate; two pairs of supporting parts are symmetrically arranged on one edge of the bottle clamping plate; the two pairs of supporting parts are correspondingly arranged on the two opposite sides of the bottle clamping opening, and a bearing sleeve is arranged between each pair of supporting parts; fastening studs are arranged at the ends, facing away from each other, of the two bearing sleeves in a threaded fit mode, and a steel ball is arranged in each bearing sleeve; and a steel ball is connected with the fastening studs through a tension spring. The plastic bottle clamp for the packaging machinery is reasonable in structural design and convenient to operate, the damage rate of the plastic bottles is effectively reduced, m