Three-hole electric binding machine

Abstract

The invention relates to a three-hole electric binding machine comprising a base, a portal frame, a workbench and a driving device. The frame is fixed on the base, two vertical guide pillars are arranged on the two inner sides of the frame, the workbench is serially connected to the two guide pillars to be in a vertical movement state, each guide pillar is sleeved with a spring, the springs are squeezed between the bottom surface of the workbench and the top face of the base, three motors are mounted on the workbench in a spaced manner, a drill bit is mounted to the output end of each motor, the output ends of the motors vertically and downwardly extend out of the bottom of the workbench, vertical racks are fixedly mounted at two ends of the workbench respectively, and the racks are arranged between the guide pillars and uprights of the frame. The driving device comprises two wrenches, the bottom ends of the wrenches are hinged to two sides of the uprights of the frame respectively via rotating shafts, the tops of the wrenches are fixedly connected via a connecting rod, a gear is fixedly mounted on each rotating shaft, and the gears are meshed with the racks respectively.

Description

technical field [0001] The invention relates to the field of office supplies, in particular to a three-hole electric binding machine. Background technique [0002] Binding machines are widely used in banking, securities, insurance, telecommunications, and schools, institutions, enterprises and institutions and other financial vouchers, bills, account pages, reports, archives, periodicals, documents, drawings, test papers, book binding work. The binding of many vouchers and documents has strict requirements, and the spacing and size of binding pinholes have uniform regulations. Existing binding machines usually use a single-motor structure. When binding, it is necessary to mark the drilling points on the first page of the document in advance, and then move the drilling holes one by one. The disadvantage of this binding method is that the work is cumbersome and the documents are moving. It is easy to be scattered during the process, the precision of binding is l...

AI Technical Summary

Problems solved by technology

Existing binding machines usually adopt a single-motor structure. When binding, it is necessary to mark the drilling points on the first page of the document in advance, and then move the drilling holes in sequence. The disadvantage of this binding method is that the work is cumbersome and the documents are moving. It is easy to be scattered during the process, the precision of binding is low, and the binding effect is not good

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