Horizontal band sawing machine

Abstract

The invention relates to a horizontal band sawing machine which comprises a portal frame, a driving saw wheel, a driven saw wheel, a saw wheel supporting seat, a tension mechanism, a band saw driving motor and a lifting transmission mechanism. A main location rotating shaft is arranged at the center of the driving saw wheel, and an auxiliary location rotating shaft is arranged at the center of the driven saw wheel. The saw wheel supporting seat is arranged on the front side of the portal frame in a vertical sliding mode and in transmission connection with the lifting transmission mechanism. The saw wheel supporting seat comprises a front beam and a back beam, and an open groove is retained between the two beams. The driven saw wheel is located in one end of the open groove of the saw wheel supporting seat, and a driving piece drives the driven saw wheel to move along the beams through a push rod and a fork arm. The driving saw wheel is located in the other end of the open groove of the saw wheel supporting seat, and two ends of the main location rotating shaft of the driving saw wheel are respectively connected with the front beam and the back beam of the saw wheel supporting seat in a supporting mode. The horizontal band sawing machine has the advantages of being compact in structure, small in size, small in operation noise, long in service life, balanced in stress and the like.

Description

technical field [0001] The invention relates to the technical field of woodworking machinery, in particular to a horizontal band saw machine. Background technique [0002] The existing horizontal band saw machine mainly includes a gantry frame, a lifting transmission mechanism, a band saw driving mechanism, a saw wheel support seat and a tensioning mechanism. The band saw driving mechanism includes a band saw driving motor, a driving saw wheel and a passive saw wheel. The wheel and the passive saw wheel are connected at both ends of the saw wheel support seat, the active saw wheel is connected to the driving motor of the band saw, the passive saw wheel is connected to the tensioning mechanism, and the band saw is tensioned on the outer periphery of the active saw wheel and the passive saw wheel , when the driving motor of the band saw drives the active saw wheel to rotate, the band saw rotates at a high speed to achieve sawing of wood. The above-mentioned saw wheel supporti...

AI Technical Summary

Problems solved by technology

In view of the above structure, the existing horizontal band saw machine has the following disadvantages: (1) the steel plate is weak in rigidity, and the tensioning process easily leads to bending and deformation of the steel plate; (2) the active saw wheel and the passive saw wheel are respectively installed in a cantilever shape, Easy to deflect, reducing band saw life

[0003] In addition, in order to improve the rigidity of the saw wheel support seat, the edge of the thick steel plate needs to extend to the outside of the active saw wheel and the passive saw wheel, resulting in a large area of ​​the thick steel plate, covering the space of the gantry door frame. If the band saw drive motor is installed on the In the middle of the saw wheel support seat, the height of the gantry frame needs to be increased to meet the installation requirements. In order not to increase the height of the gantry frame, the band saw drive motor can only be installed on the outside of the gantry frame and connected to the saw wheel support seat. end connection

However, this has resulted in a large deviation in the load-bearing balance of the saw wheel support seat, serious wear and tear on the moving parts, and reduced machine life.

[0004] In addition, in view of the fact that the saw wheel support seat is made of a plate-like material, it cannot be directly connected with the lead screw of the lifting transmission mechanism, so a frame is also provided on the back of the thick steel plate, and the corresponding screw rod is provided with longitudinal holes on the frame, and the holes are vertically opened. There is a nut to cooperate with the screw rod, which increases the cost; moreover, the saw wheel support seat (thick steel plate) has a large area and high quality, and the force of the screw does not directly act on it, and the saw wheel support seat and the parts installed on it Compared with the frame, it belongs to a cantilever structure, which leads to the unbalanced force on the screw

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