3D (three-dimensional) wrapping cloth welding mechanism of seat back wrapping machine

Abstract

The invention relates to a 3D wrapping cloth welding mechanism of a seat back wrapping machine for welding a mesh on a 3D back rest. The 3D wrapping cloth welding mechanism comprises an overall lifting cylinder; the overall lifting cylinder is connected with a fixing plate; the fixing plate is connected with a first welding device; a second welding device is arranged on a frame; cylinders are arranged on the frame bodies of the first welding device and the second welding device; a piston rod of the cylinder is connected with an ultrasonic wave welding head; a sliding rail pointing to a centre direction of the fixing plate is connected below the fixing plate; the sliding rail is connected with a sliding plate; the sliding plate is connected with the piston rod of a sliding plate cylinder; a cylinder body of a first welding head lifting cylinder is vertically connected on the sliding plate; the piston rod of the welding head lifting cylinder is hinged with the frame body of the first welding device; the piston rod of a second welding head lifting cylinder is hinged with the frame body of the second welding device, and the first welding device and the second welding device are staggered in groups. The 3D wrapping cloth welding mechanism, disclosed by the invention, can save welding time, precisely meet the demand of a 3D welding surface, meet the requirement of mass production and have good welding consistency.

Description

Technical field [0001] The present invention relates to the technical field of cloth-wrapping backrest seats, in particular to a cloth-wrapping machine for cloth-wrapping the seat back. Background technique [0002] The cloth-covered back seat is widely used in homes and various office places, and comfort is an important indicator of the cloth-covered back chair. The comfort of the cloth-covered backrest mainly depends on the tension of the 3D (ie three-dimensional curved surface) backrest frame and the cloth-covered back cushion. The cloth-covered back cushion that meets the design requirements should be ergonomically located in different positions on the back mesh Learn different tensions. In the prior art, a 3D back cushion is manufactured manually, and the manufacturing method steps are as follows: [0003] 1. First, design and manufacture a 3D backrest based on ergonomics; [0004] 2. Cut and unfold the mesh according to the shape and size of the 3D backrest frame; [0005] 3....

AI Technical Summary

Problems solved by technology

[0010] The applicant aimed at the above-mentioned shortcomings of manual processing of 3D backrest cushions, improved and designed it, and provided a set of automatic wrapping processing production lines for 3D cloth-wrapped backrest cushions

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