Plant fibre cable coil bidirectional friction extrusion molding device

Abstract

The invention discloses an extrusion molding device of a plant fiber cable reel by bidirectional friction. The device comprises a female die, a top plunger, a bottom plunger, and a core bar positioned in a die cavity of the female die, and further comprises a power device pressing the top plunger into the die cavity of the female die, wherein, the core bar is movably connected with the bottom plunger; a plate die cavity of the female die is communicated with a winding drum die cavity, the core bar is arranged in the winding drum die cavity, the upper end of the core bar penetrates the bottom surface of the plate die cavity of the female die, and continues to move upwards until being parallel to an upper hole of the female die, the top plunger is provided with a hole matched with the upper end of the core bar, and the upper end of the core bar penetrates into the hole after the top plunger is pressed into the plate die cavity of the female die; and the lower end of the core bar penetrates the winding drum die cavity, penetrates the box body of the female die and then is movably connected to a box body by a bolt which penetrates a connection plate at the bottom of the core bar. The device has the advantages of even compaction, low breakage rate, low manufacturing cost, large bearing force of a finished product and the like.

Description

Technical field: [0001] The invention relates to mechanical equipment, in particular to a device for pressing cable drums with plant fibers. Background technique: [0002] At present, cable reels made of plant fibers are widely welcomed by the industry because they can be recycled and reused, and the recovery rate can reach 100%. At the same time, they have the advantages of low cost, low pollution, and no need for fumigation. However, for a long time, due to the special shape of the cable reel, coupled with the poor fluidity of the plant fiber raw material and the particularity of the large volume change during the molding process, it has been proved that it is not feasible to adopt the general conceptual molding process such as the one-way molding process. During the process, the axial compaction density of the reel is generally uneven, especially the connection between the plate and the reel, which is a weak link. At the same time, there are defects such as difficult demo...

AI Technical Summary

Problems solved by technology

However, for a long time, due to the special shape of the cable reel, coupled with the poor fluidity of the plant fiber raw material and the particularity of the large volume change during the molding process, it has been proved that it is not feasible to adopt the general conceptual molding process such as the one-way molding process. During the process, there is generally uneven axial compaction density of the reel, especially the connection between the plate and the reel, which is a weak link. At the same time, there are defects such as difficult demoulding, high breakage rate, and low production efficiency.

Images