Multilayer thermal press for sheet material

Abstract

The invention discloses a multilayer thermal press for a sheet material and belongs to the field of sheet material machining. The multilayer thermal press comprises a rack, a press plate oil cylinder, an upper pressing plate, a plurality of carrier plates, a lower pressing plate, side locating rods, a suspending locating rod and a hot gas pipeline, wherein the press plate oil cylinder is connected with the lower pressing plate, and the carrier plates are arranged between the upper pressing plate and the lower pressing plate. The multilayer thermal press further comprises a synchronous closing device, wherein the synchronous closing device comprises two synchronous link mechanisms which are symmetrically distributed at the two sides of the rack, each synchronous link mechanism comprises an upper link, a lower link and a plurality of middle links, one end of each upper link is hinged to the upper pressing plate, a plurality of insertion holes are formed in each upper link, one end of each lower link is hinged to the lower pressing plate, the other end of each upper link is hinged to the other end of the corresponding lower link, one end of each middle link is hinged to the corresponding carrier plate, and the other end of each middle link is inserted into the corresponding insertion hole of the corresponding upper link and is always parallel to the corresponding lower link. The multilayer thermal press is applied to a thermal press procedure of a woodworking board machining process and has the advantages of high degree of automation, high production efficiency and high machined woodworking board quality.

Description

technical field [0001] The invention belongs to a plate processing machine, in particular to a plate multilayer hot press. Background technique [0002] Woodworking board, also known as blockboard or large core board, is made of two veneers glued together in the middle. The middle board core is made of high-quality natural wood boards after heat treatment (that is, drying in the drying room), processed into wooden strips of certain specifications, and spliced ​​by a jigsaw machine. The spliced ​​wooden boards are covered with two layers of high-quality veneer on both sides, and then glued by cold and hot presses. The existing board core forming process is: the core strip is paved by hand, and the panel, the back board, and the core board are assembled into a hot press machine, and the side is glued or not glued. This method is simple and applicable, but there are the following disadvantages: (1) most of the existing heat presses are single-layer, and the degree of automati...

AI Technical Summary

Problems solved by technology

This method is simple and applicable, but there are the following disadvantages: (1) most of the existing heat presses are single-layer, and the degree of automation is low, not only inefficient but also higher in labor costs; (2) the existing multi-layer heat press It is not easy for the press to achieve accurate positioning of lateral extrusion, and there are gaps between the core strips. The quality of the core strips of the blockboard produced by this process is generally poor; (3) the existing multi-layer hot press When the closure between the layers is not synchronized, resulting in more or less thermal processing time for the core boards of each layer, the hot pressing effect of each core board cannot achieve the best unified effect

The application publication number is CN103786196A, which discloses a multi-layer plate heat press, including a frame, a first cylinder, a second cylinder, a carrier plate, a third cylinder, a bottom pressure plate, a top pressure plate, a connecting column, a top beam and a steam pipe , which can realize hot pressing on the core board and pressurize and position the four sides of the core board, but the hot pressing machine disclosed in this application lacks a matching planking and board feeding device, so it cannot realize automatic production, and it is closed The closure between the layers is not synchronized during hot pressing, resulting in differences in the heating time of the board, so the produced core board has defects of uneven quality

Images