CN111409165A - A four-roll automatic rotary cutting mechanism for processing small-diameter thick veneer - Google Patents

Abstract

The invention relates to the technical field of wood processing rotary cutting equipment, in particular to a four-roller automatic material supporting rotary cutting mechanism for processing small-diameter and thick veneers, which is characterized in that: the four-roller automatic material supporting and rotary cutting mechanism for processing the small-diameter and thick single plates increases the friction force of the rollers on the small-diameter materials when the rotary cutter is used for rotary cutting the thick single plates through the four rollers, obtains the thick single plates through rotary cutting of the rotary cutter, and can realize the automatic material supporting effect before rotary cutting of the small-diameter materials through a group of extrusion roller rollers, a V-shaped frame, an upper compression roller and a cam mechanism, so that the structure is more compact, and the requirements of actual production are better met.

Description

A four-roll automatic rotary cutting mechanism for processing small-diameter thick veneer

technical field

The patent of the present invention relates to the technical field of wood processing rotary cutting equipment, which is a four-roll automatic supporting rotary cutting mechanism for processing small-diameter thick veneer.

Background technique

The rotary cutting mechanism of the existing non-card shaft rotary cutting machine has only three rollers, which are distributed in a triangular structure. Vertically arranged up and down, the center of the pinch roller is above the vertical bisector of the center of the driving double roller, the friction force provided to the small diameter material during rotary cutting is limited, and the thick veneer cannot be cut.

The invention adopts four rollers to fix the small-diameter material at the center of the four rollers, increases the friction force of the rollers on the small-diameter material to meet the requirements of processing thick veneer, and uses a set of extrusion rollers, V-shaped frames and cams. It has the characteristics of good bearing capacity, more compact structure, low maintenance cost, high total benefit, and more conducive to the needs of actual production.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a four-roller automatic rotary cutting mechanism for processing small-diameter thick veneers, which realizes the processing method of rotating small-diameter materials into thick veneers, and fixes the small-diameter materials on the four-roller through four rollers. At the center position of each roller, the friction force of the roller on the small diameter material is increased to meet the requirements of processing thick veneer, and a set of extrusion rollers, V-shaped frame and cam mechanism are used to replace the material support mechanism.

In order to achieve the above purpose, the technical solution adopted in the present invention is: a four-roller automatic feeding rotary cutting mechanism for processing small-diameter thick veneer, which consists of two sets of oppositely arranged upper and lower distributed rollers, a front fixing frame, and a rotary cutting mechanism fixed thereon. The knife bed, V-shaped frame, cam mechanism, and frame are composed. The front fixing frame is fixed on the frame connecting plate, the tool bed is connected to the frame connecting plate through the ball screw pair, the tool bed moves horizontally on the frame connecting plate through the ball screw pair transmission, and the front fixing frame is fixed with a connection The V-shaped frame and cam mechanism of the squeeze roller, a set of vertically distributed pressing rollers and rotary cutters are fixed on the knife bed, and the rotary cutter is placed between the two pressing rollers. When the rotary cutting machine is operating, the cam rotates under the drive of the motor, the V-shaped frame and the squeeze roller are lifted up to the highest point of the cam rotation, and the small diameter material rolls between the squeeze roller and the upper pressure roller, and the cam continues to rotate to At the lowest point, the small-diameter material is positioned between the squeeze roller and the pressing roller, and the small-diameter material is rotated by the rotation of the roller, and the rotary cutter cuts the small-diameter material into thick veneer.

The advantages of the invention are: the four-roll automatic rotary cutting mechanism for processing small-diameter thick veneers solves the shortcoming of insufficient friction provided by the rollers to the small-diameter materials when the existing rotary cutters rotate thick veneers. A set of squeezing rollers, V-shaped frame, upper pressing roller and cam mechanism can realize the function of automatic material support before the rotary cutting of small-diameter materials, making the structure more compact and more conducive to the needs of actual production.

Description of drawings:

Figure 1 Random Figure 1 of the four-roll automatic rotary cutting mechanism for processing small-diameter thick veneers;

In the picture 1. Front fixing frame 2. V-shaped frame 3. Upper pressing roller 4. Knife bed 5. Lower pressing roller 6. Lower pressing roller 7. Cam 8. Upper pressing roller 9. Frame connecting plate.

Figure 2. Front view of the four-roll automatic rotary cutting mechanism for processing small-diameter thick veneers;

Figure 10. Rotary cutter.

Figure 3 cam mechanism shaft side view;

Figure 11. Cam drive shaft.

Figure 4. Four-roll automatic rotary cutting mechanism for small-diameter thick veneer processing. Figure 2.

Detailed ways

Embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings:

The small-diameter thick veneer processing four-roll automatic rotary cutting mechanism consists of a front fixing frame 1, a V-shaped frame 2, an upper pressing roller 3, a knife bed 4, a lower pressing roller 5, a lower pressing roller 6, and a cam 7 , The upper squeeze roller 8, the frame connecting plate 9, the rotary cutter 10, and the cam drive shaft 11 are constituted.

The components and functions of each part of the device are described below:

The front fixing frame 1 is connected to the frame connecting plate 9 through bolts, and the tool bed 4 is connected to the frame connecting plate 9 through a ball screw pair. Driven by a motor, the tool bed 4 is connected to the frame through the transmission of the ball screw pair. The plate 9 moves horizontally, the front fixed frame 1 is fixed with a V-shaped frame 2 connecting the upper squeeze roller 8 and the lower squeeze roller 6 and the cam drive shaft 11, the two ends of the cam drive shaft 11 are connected with two cams 7, the tool bed 4 The upper pressing roller 3 , the lower pressing roller 5 and the rotary cutter 10 are fixed on the top, and the rotary cutter 10 is placed above the vertical bisector of the upper pressing roller 3 and the lower pressing roller 5 . When the rotary cutting machine is operating, the cam 7 rotates from the lowest point to the highest point and stops under the motor drive, jacking up the V-shaped frame 2, the upper squeezing roller 8 and the lower squeezing roller 6, and the small diameter material falls to the upper squeezing roller 8 , between the lower pressing roller 6 and the upper pressing roller 3, and then the knife bed 4 slowly moves backward by an appropriate distance under the drive of the screw pair, so that the small diameter material slowly falls along the upper pressing roller 8 to the center of the four rollers. At the same time, the cam 7 rotates from the highest point to the lowest point, the V-shaped frame 2 returns to the initial position, and the small-diameter material falls between the four rollers to complete the centering and positioning, and the rotation of the four rollers drives the small-diameter material to rotate. , Rotary cutter 10 to cut small-diameter material into thick veneer.

Claims (2)

1. The utility model provides an automatic material rotary-cut mechanism that holds in palm of four rollers of thick veneer processing of path timber comprises preceding mount, V type frame, cutting bed, rotary cutter, frame connecting plate, last squeeze roll, lower compression roll, last compression roll, cam drive shaft, characterized by: the front fixing frame is fixed on the frame connecting plate, the cutter bed is connected to the frame connecting plate through a ball screw pair, the cutter bed moves horizontally on the frame connecting plate through the ball screw pair, the V-shaped frame and the cam transmission shaft which are used for connecting the upper extrusion roller and the lower extrusion roller are fixed on the front fixing frame, two cams are connected to two ends of the cam transmission shaft, the upper compression roller, the lower compression roller and the rotary cutter are fixed on the cutter bed, and the rotary cutter is arranged above a vertical bisector of the upper compression roller and the lower compression roller.

2. The four-roller automatic supporting rotary-cut mechanism for machining the small-diameter and thick single plates according to claim 1, which is characterized in that: the material supporting effect is achieved through the upper extrusion roll, the lower extrusion roll, the V-shaped frame and the upper compression roll, and the friction force of the four roller wheels on small-diameter materials is increased to cut thick veneers in a rotary cutting mode.

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