閉口式機架為一整體鑄件制成。這種機架形式在型鋼車間中小型軋機上應用較多。其優(yōu)點是強度和剛度較高，輥跳值較小，產(chǎn)品精度較高。比如二輥軋機，其的主要特點就是結構簡單、用途廣泛，也包括可逆式和不可逆式兩種。其主要缺點是制造比較困難，裝卸、換輥不方便。軋制壓力較大、對軋件尺寸要求比較嚴格時常采用閉口式機架。如初軋機、型鋼連軋機和型鋼成品軋機等。

The closed frame is made of a whole castings. This type of frame is used more in the small and medium mill in the steel workshop. Its advantages are that the strength and stiffness are high, the roll jump value is small and the precision of the product is high. Its main disadvantage is that it is difficult to manufacture, and it is inconvenient to load and load and change the roll. When the rolling pressure is larger and the requirements for the size of the rolled piece are strict, the closed frame is often used. Such as the early rolling mill, the type steel continuous rolling mill and the steel finished rolling mill, etc.

半閉口式機架是機架與機架蓋之間采用斜楔連接的一種機架。這種機架兼有開口式機架和閉口式機架的優(yōu)點，裝卸、換輥方便，制造容易，并有較高的剛度，故一般大中型的型鋼軋機都采用這種形式的機架。

A semi closed frame is a frame with a wedge between the frame and the frame cover. The rack has the advantages of open frame and closed frame. It has the advantages of loading and unloading, easy roll changing, easy manufacture and high rigidity. Therefore, a large and medium-sized steel mill is adopted in this form.

楔橫軋機類型有輥式、板式和單輥弧式楔橫軋機。三種類型的楔橫軋機相比，板式楔橫軋機模具制造較為簡單，模具的調整比較容易，因而軋件的精度較高，并且工藝可靠.

The cross wedge rolling mill has roller type, plate type and single roll arc cross wedge rolling mill. Compared with the three types of cross wedge rolling mill, the mould manufacturing of the plate type cross wedge rolling mill is simpler and the adjustment of the die is easy, so the precision of the workpiece is high and the process is reliable.

軋機專業(yè)廠家介紹，其實從實際生產(chǎn)作業(yè)來看，關于冷軋機的安全生產(chǎn)主要包括三個方面，分別為：定期檢修、日常安全操作以及日常的培訓管理等。

In fact, from the actual production operation, the safety production of the cold rolling mill mainly includes three aspects, which are the regular maintenance, the daily safety operation and the daily training etc.