A synchronous balancing system for oil cylinders of a single-layer hot press

Abstract

The invention discloses a synchronous balancing system for oil cylinders of a single-layer hot press, which includes at least two groups of balancing mechanisms, each group of balancing mechanisms includes a first rotating shaft, a second rotating shaft and at least three balancing units, and each balancing unit includes a fixed The first gear on the first shaft, the second gear fixed on the second shaft, the first rack meshed with the first gear and the second rack meshed with the second gear, the first rack and the second gear Both racks are vertical, the first gear meshes with the second gear and is located between the first rack and the second rack, the bottom end of the first rack and the bottom end of the second rack are respectively connected to the single-layer heat The top surface of the horizontal upper platen of the press is fixedly connected, the first rotating shaft and the second rotating shaft are both horizontal, and both ends of the first rotating shaft and both ends of the second rotating shaft are rotatably connected to the frame of the hot press through bearings, The bottom end of the plunger rod of the oil cylinder of the single-layer heat press is also fixedly connected with the top surface of the upper pressing plate. It ensures that all the cylinders in the single-layer heat press can be precisely synchronized.

Description

technical field [0001] The invention relates to the technical field of wood-based panel equipment, in particular to a synchronous balancing system for oil cylinders of a single-layer hot press. Background technique [0002] Wood-based panel periodic heat press can be divided into multi-layer and single-layer. Compared with wood-based panel multi-layer heat press, wood-based panel single-layer heat press has the following main advantages: (1) No complicated pre-press and Loading and unloading machine and other supporting equipment simplifies the production line as a whole and brings convenience to operation and maintenance; (2) The single-layer press has a large format of hot-pressing plate, which can reduce the loss of raw edges and trimming; (3) The closing stroke is far Smaller than the multi-layer press, the closing time is shorter, so that the thickness of the pre-cured layer can be significantly reduced, and the sanding allowance is small. However, the production capac...

AI Technical Summary

Problems solved by technology

Such a large format has a negative impact on actual production

[0003] The larger the format of the wood-based panel heat press, the more oil cylinders are required, and the synchronous operation of the oil cylinders becomes more complicated. Unbalance and slight vibration problems will occur when the heat press is closed, especially when it is closed quickly, which will affect the quality of the wood-based panel

Even if the hydraulic system uses synchronous valves, it is difficult to ensure precise synchronization of the oil cylinders, resulting in unstable or even tilted movement of the pressing plate on the hot press, which seriously affects the production quality of wood-based panels

The addition of a mechanical linkage synchronous control mechanism on the basis of the synchronous valve can alleviate the above-mentioned adverse effects to a certain extent, but it cannot fundamentally solve the problem that it is difficult to achieve precise synchronization and vibration during the closing process of the control cylinder

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