Variable transmission mechanism for sheet thermal superimposition device

Abstract

The invention relates to a variable transmission mechanism for a sheet thermal superimposition device, comprising a reversing module, a power-output shaft, a power input module and a gear module. The reversing module comprises a revering gear and a gear of a reversing clutch; the power input module comprises a first rotate speed driving wheel, a second rotate speed driving wheel, a clutch gear, a power input shaft and a one-way motor. When the clutch gear is combined with the first rotate speed driving wheel, a thermocompression roller of the sheet thermal superimposition device is driven to rotate forward at a first rotate speed; when the clutch gear is combined with the second rotate speed driving wheel, the thermocompression roller rotates forward at a second rotate speed; and when the reversing clutch gear is combined with the reversing gear, the thermocompression roller rotates reversely. The invention has the functions of variable thermocompression and escaping the sheet through cooperation of the reversing module, the power input module and the gear module.

Description

technical field [0001] The invention relates to a thermal lamination device, in particular to a sheet thermal lamination device for thermally pressing two pieces of thermoplastic film and a sheet wrapped therein. Background technique [0002] In daily life, it is often necessary to add a layer of protective film to some fragile paper data, such as documents or photos, to prevent the documents or photos from being damaged. Usually, a heat lamination device is used to clamp the loose-leaf between two protective films to achieve the protective effect. Next, the structure of a conventional sheet thermal lamination apparatus will be described. [0003] see figure 1 , which is a structural schematic diagram of an existing thermal lamination device for sheets. The sheet heat lamination device 10 includes a heat treatment device 20 , a driving pressing device 30 and a conveying channel 40 , wherein the heat treatment device 20 includes an electric heating plate 21 and a heating d...

AI Technical Summary

Problems solved by technology

However, if the temperature is adjusted arbitrarily, it will cause a waste of time. For example, the original thermal lamination device is performing thermal lamination at a temperature of 100 degrees, and when encountering thicker documents that need to be protected at a temperature of 130 degrees, the temperature will be changed. Raise it to 130 degrees and thermally laminate the thicker document. At this time, the thermal lamination device after raising the temperature can only perform thermal lamination at 130 degrees or a higher temperature, but if you want to perform thermal lamination at a temperature of 130 If the temperature is below 100°C, the thermal lamination must wait for the thermal lamination device to cool down, so it takes a period of time to wait for cooling

[0007] Therefore, the prior art proposes a variable-speed sheet thermal lamination device, which uses different speeds to thermally laminate documents of different thicknesses at a fixed temperature—thicker documents are thermally laminated at a slower speed , while thinner files use faster speed for thermal lamination, but it is more expensive to use the controller to control the variable speed of the motor, which does not meet the cost considerations

Images