Handheld perforating machine for accounting documents

Abstract

The invention discloses a handheld perforating machine for accounting documents, and relates to an office device. The handheld perforating machine comprises a frame and a pushing device mounted at the top of the frame. The pushing device penetrates through the mounting rack (that is, the frame), and is connected with an upper pressing plate. A lower pressing plate is arranged below the upper pressing plate. The lower pressing plate is arranged on a bottom plate of the frame through compression springs I. A guide hole is formed in the upper pressing plate. A drain hole is formed in the lower pressing plate. A fixing hole is formed in the frame. A perforating needle is inserted in the fixing hole. A compression spring II sleeves the perforating needle. A limited block is arranged at the upper end of the perforating needle. The compression spring II is arranged between the limited block and the frame. A supporting seat is arranged at the top of the frame. A rotary down-pressing handle is arranged at the upper end of the supporting seat. The handheld perforating machine is simple in structure, convenient to operate, and accurate to perforate.

Description

technical field [0001] The invention relates to an office device, in particular to a manual punching machine for accounting vouchers. Background technique [0002] Accounting vouchers are written certificates that record economic transactions, clarify economic responsibilities, and are compiled in a certain format to register accounting books. Accounting vouchers are the basis of accounting and accounting, and need to be bound for storage. Usually, accounting vouchers need to be bound into books on a monthly basis. The usual method is to use an awl to tap the hole and then stitch it together. The taper hole is labor-intensive and low in efficiency. . Although there are mechanical punching devices on the market, there is a defect in these punching devices, that is, when punching holes, the paper on the upper layer will have a page error compared to the paper on the lower layer. During the process, the force on the upper layer of paper and the lower layer of paper is inconsi...

AI Technical Summary

Problems solved by technology

Accounting vouchers are the basis of accounting and accounting, and need to be bound for storage. Usually, accounting vouchers need to be bound into books on a monthly basis. The usual method is to use an awl to tap the hole and then stitch it together. The taper hole is labor-intensive and low in efficiency.

Although there are mechanical punching devices on the market, there is a defect in these punching devices, that is, when punching holes, the paper on the upper layer will have a page error compared to the paper on the lower layer. During the process, the force on the upper layer of paper and the lower layer of paper is inconsistent, so the punched holes will be inclined, and the binding will be irregular. The punching machine needs to be placed on a special table, which takes up a lot of space and is inconvenient to use.

Images