JPH02227005A - Feeder in cylindrical type cutter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a feeding device in a cylinder type cutter.

As shown in FIGS. 1 and 2, the cylinder-type cutter A that is the subject of the present invention has a rotating shaft 3 that passes through the axial center of a cutting chamber 2 mounted on a machine frame 1. Axis 3
A rotary blade 5 is mounted parallel to the rotary shaft 3 through a blade mount 4-4 protruding in the radial direction from the rotary blade 5, and the rotary blade 5 rotates around the rotary shaft 3 in a cylinder due to the rotation of the rotary shaft 3. A fixed blade 6 facing the rotary blade 5 is installed at the entrance 20 of the cutting chamber 2 in a position parallel to the rotating shaft 3 and fixed to the machine frame l, As a result, the feed roll chamber 7 installed on the front side of the inlet 20
A pair of feed rolls 70 are pivotally supported and are arranged vertically opposite each other.
・The material to be cut, which is sent into the cutting chamber 2 by the cutter 71, is sequentially cut by the single rotating blade 5 and the fixed blade 6, which is different from a normal cylinder type cutter. However, as proposed in JP-A No. 63-114894, the rotary blade 5 is made into a straight blade, and the blade is inclined with respect to the axis of the rotary shaft so that one end of the blade advances in the direction of rotation and the other end lags behind. This is a cylinder-type cutter that is installed with the fixed blade tilted in the opposite direction, with the fixed blade as a straight blade.

That is, in the ordinary cylinder-type cutter shown in FIGS. 1 and 2, the rotary blade 5 has its blade 5a with the center portion facing outward (as shown in FIGS. 3 and 4). It is formed into a twisted blade that bulges out in an arc shape on the right side in Figure 3.
The cylinder type cutter targeted in the present invention is the fifth
As shown in the figure and FIG.
is continuous in a straight line, and the blade 5a is formed into a straight plate-like straight blade.

The tip of the blade mount 4, which is attached to the rotating shaft 3, is attached at an angle to the axial direction of the rotating shaft 3 so that one end The fixed blade 6 that corresponds to the rotary blade 5 is attached to the blade edge 6.
0 continues in a straight line, the blade 6a is formed into a straight plate-like straight blade, and the blade edge 60 is inclined at the same angle α as the inclination angle α with respect to the axial direction of the rotating shaft 3 of the rotary blade 5 and in the opposite direction. This is a cylinder-type cutter that is fixedly supported on the machine frame 1 while being arranged in a state where the

This type of cylinder cutter has a single rotating blade 5 and a fixed blade 6.
Since both of the blades 5a and 6a may be formed into straight blades in the form of straight plates, the fixed blade and the rotary blade may be constructed using ceramic blades that are formed by compression molding and therefore do not like curved surfaces. It is extremely effective when However, in this type of cylinder cutter, the fixed blade 6 is fixedly attached to the mouth edge of the entrance 20 of the cutting chamber 2, and the fixed blade 6 is attached in a posture such that the edge 60 of the fixed blade is inclined with respect to the axial direction of the rotating shaft 3. Therefore, the inlet roll chamber 7 on the front side of the inlet 20
Feed rolls 70 and 71 are vertically opposed and horizontally supported.
As a result, the operation of feeding the material to be cut into the cutting chamber 2 becomes less smooth.

A problem has arisen in which cutting of materials to be cut is not performed smoothly.

The present invention has been made to solve this problem, and has a straight plate-shaped fixed blade 6 whose blade edge 60 is attached to the rotating shaft 3.
Under the constraints of the cutting mechanism of this cylinder-type cutter, which is fixedly attached to the mouth edge of the entrance 20 of the cutting chamber 2 in a posture inclined with respect to the axial direction of the It is an object of the present invention to provide a new means for smoothly feeding a material to be cut into a fixed blade 6 so that the material to be cut can be smoothly cut.

In the present invention, as a means for achieving this object, the feed rolls 70-71, which are horizontally supported in the feed roll chamber 7 on the front side of the entrance 20 of the cutting chamber 2, are The rotating blade 5 has a blade edge 60 along the lower lip of the entrance 20 of the chamber 2.
A straight blade-like fixed blade 6 is fixedly installed in a posture inclined with respect to the axial direction of the rotating shaft 3, and the inclined blade edge 60 of the fixed blade 6 and the rotating shaft 70a of the feed rolls 70 and 71.
・Means for horizontally supporting the axis 71a in a parallel posture, and in the feed roll chamber 7 on the front side of the entrance 20 of the cutting chamber 2,
The axial direction of the rotating shaft 70a and the fist 71a is the rotating shaft 3 of the rotating blade 5.
The feed roll 70 is horizontally supported in parallel with the axial direction of the
71, and a straight-edged fixed blade 6 fixedly mounted in a position along the lower lip of the entrance 20 of the cutting chamber 2 with the blade edge 60 inclined with respect to the axial direction of the rotating shaft 3 of the rotary blade 5. In between, the edge of the guide surface on the side of the feed rolls 70-71 is parallel to the axis of the rotating shaft 70a*71a of the feed roll 70-71, and the edge on the side of the fixed blade 6 is parallel to the axis of the rotation shaft 70a*71a of the feed roll 70-71. A means for arranging a twisted guide plate 8 parallel to the blade edge 60 is proposed.

Next, embodiments will be described in detail with reference to the drawings. Note that the same reference numerals in the drawings as in the previous means are used for components having the same effect.

FIG. 7 is a partially cutaway side view of the main part of the feeding device in the cylinder type cutter according to the present invention.
is the machine frame of cylinder type cutter A.

2 is a cutting chamber, 3 is a rotating shaft, 5 is a rotating blade, 6 is a fixed blade, 7
70 and 71 are feed rolls, and 8 is a guide plate.

The overall structure of the cylinder type cutter A is the same as the normal cylinder type cutter shown in FIG. 1, and the rotary blade 5 and fixed blade 6 are the same as shown in FIGS. 5 and 6. This is a cylinder-type cutter with a configuration that includes:

That is, the rotating blade 5 and the fixed blade 6 each have a blade 5a.
- 6a is plate-shaped and the blade edges 50 and 60 are formed into straight straight blades, and in the rotary blade 5, one end X of the blade edge 50 is The blade edge 50 is set at an inclination angle α with respect to the axial direction of the rotation shaft 3 so that the blade edge 50 advances forward in the rotation direction (direction of arrow A in FIG. 8) and the other end 2 lags behind.
The blade is attached to the rotating shaft 3 via a blade mount 4 (not shown in the drawings) so that the blade is tilted at a tilted position.

In addition, in the fixed blade 6, one end lags in the direction of rotation of the rotary blade 5, and the other end Z advances in the direction of rotation of the rotary blade 5.
The blade edge 60 is mounted so as to be inclined at the same angle as the inclination angle α of the rotary blade 5 with respect to the axial direction of the rotary shaft 3.

The feed rolls 70 and 71 which are vertically opposed and horizontally supported in the feed roll chamber 7 formed on the front side of the entrance 20 of the cutting chamber 2 have their rotating shafts 70aφ71a aligned with one machine frame 1.
When horizontally supported by a fixed bearing support member 72 and a vertically movable bearing support member (not shown) provided in The fixed blade 6 is tilted at an inclination angle α and parallel to the blade edge 60 of the fixed blade 6, which is horizontally supported.

Further, between the delivery side of the opposing gap between the feed rolls 70 and 71 and the front side of the blade edge 60 of the fixed blade 6, a material to be cut to be delivered to the delivery side of the opposing gap is fixed. Blade 6
As shown in Fig. 7, there is a guide board 8 that guides you towards
The rotating shafts 70a and 71a of the blade edge 60 of the fixed blade 6 and the feed rolls 70 and 71 are set so that the blade edge 60 of the fixed blade 6 is high at one end side X where it is located high and is low at the other end side Z where it is located low. It is installed in an inclined position following the direction of inclination.

The embodiment device constructed in this manner operates as follows.

The rotary shaft 3, which is the main shaft of the cylinder type cutter A, is driven by transmission with the prime mover shaft, and the rotary blade 5 and feed roll 70.
71 is in operation, the material to be cut is transferred to the supply gutter installed in the machine frame l so as to be connected to the front surface of the feed roll chamber 7 and protrude forward, as shown in FIG. If you put it in lO.

The material to be cut is held in the gap between the upper and lower feed rolls 70 and 71 which are rotating oppositely to each other.

While being held between the rolls 70 and 71, they are sequentially fed into the cutting chamber 2 through the entrance 20 of the cutting chamber 2.

Then, when the cutting chamber 2 is fed into the cutting chamber 2, the rotating shaft 3
The rotating blade 5 and the fixed blade 6 are cut into pieces with a predetermined cutting length set by the rotational speed of the single-turn blade 5 and the feed speed of the feed roll 70ψ71.

At this time, the feed rolls 70 and 71 that feed the material to be cut into the cutting chamber 2 have rotating shafts 70a and 71a whose axial directions are tilted so that the blades of the fixed blade 6 are fixedly mounted. i60
Since the material to be cut is supported in a parallel position, the material to be cut sent out from the opposing gap of the feed rolls 70-71 is aligned with the blade edge 60 of the fixed blade 6 in each longitudinal direction of the blade edge 60. The position relative to the other parts is approximately evenly aligned, and the product is fed out.

For this reason, the fixed blade 6 is fixed so that the blade edge 60 is connected to the rotating shaft 3 of the rotary blade 5.
Since the material to be cut that is fed into the entrance 20 of the cutting chamber 2 is mounted along the lower lip of the entrance 20 of the cutting chamber 2 in an inclined position with respect to the axial direction of the cutting chamber 2, This prevents the material from hitting the blade 6a of the fixed blade 6 or rising from the blade edge 60, allowing the feed rolls 70 and 71 to smoothly feed the material to be cut, and stabilizing the cutting action. It will be carried out.

Next, FIGS. 9 to 11 show another embodiment. In this embodiment, the rotary blade 5 and the fixed blade 6 are connected to a blade edge 50-6.
0 continues in a straight line, the blades 5a and 6a are formed into plate-like straight blades, and 1 of the rotary blade 5 and fixed blade 6.
The attachment to the rotating shaft 3 and the means for attachment to the machine frame 1 at the lower lip of the entrance 20 of the cutting chamber 2 are the same as the embodiments shown in FIGS. 7, 11 and 8 described above.

That is, the rotary blade 5 formed as a straight blade has its blade edge 50 at an inclination angle α with respect to the axial direction of the rotary shaft 3 so that one end X of the blade edge 50 advances forward in the direction of rotation and the other end 2 lags behind. The fixed blade 6 is attached to the rotary shaft 3 via the blade mount 4 (Fig. 1) in an inclined position, and the fixed blade 6 has one end X of the blade edge 50 facing backward in the direction of rotation of the rotary blade 5. Delayed other end 2
The blade edge 60 is arranged in a position along the lower lip of the entrance 20 of the cutting chamber 2 so that the blade edge 60 is inclined at the same angle of inclination α as the rotary blade 5 with respect to the axial direction of the rotary shaft 3. It is fixedly attached to the machine frame l.

However, in the case of the feed rolls 70 and 71 which are horizontally supported as a pair in the feed roll chamber 7 in front of the entrance 20 of the cutting chamber 2, the axial direction of the rotating shaft 70a*71a thereof is 1
As a posture parallel to the axial direction of the rotary shaft 3 of the rotary blade 5,
It is horizontally supported on the machine frame l via a bearing support member 72 fixed to the machine frame l and a bearing support member (not shown) movable on the machine frame l.

Then, feed rolls 70 and 71 parallel to this rotating shaft 3
As shown in FIG. 11, the edge 8a on the side of the feed rolls 70, 71 is between the fixed blade 6 which is inclined at an angle of inclination α with respect to the rotating shaft 3. A twisted guide plate 8 is arranged parallel to the axial direction of the rotating shafts 70a and 71a, and the edge 8b on the fixed blade 6 side is parallel to the blade edge 60 of the fixed blade 6. , the fixed blade 6 is attached to the above-mentioned bearing support member 72 which also serves as a mounting member for the fixed blade 6.
It is fixedly attached by the zero set bolt 73, so that one surface that becomes the guide surface 80 is connected to the feed rolls 70 and 71.
It is in a state where it is bridged between the lower edge portion on the delivery side of the opposing gap and the front side of the blade edge 60 of the fixed blade 6.

The embodiment constructed in this manner operates as follows.

When the material to be cut is fed into the cutting chamber 2 through the entrance 20 of the cutting chamber 2 by the operation of the feed rolls 70 and 71, the material to be cut is moved by the feed rolls 70 and 71. At the point where the feed rolls 70 and 71 and the fixed blade 6 come out to the feed side of the opposing gap,
The fixed blade 6 comes into contact with a guide surface 80 on the upper surface of the guide plate 8 disposed between the fixed blade 6 and the fixed blade 6, and is then guided by the guide surface 80 toward the entrance 20 of the cutting chamber 2 where the fixed blade 6 is installed.

Then, this guide surface 80 is
On the side, the rotation shaft 70a of the feed roll 70-71
・Since it is parallel to the axial direction of 71a and twisted so as to be parallel to the blade edge 60 of the fixed blade 6 on the fixed blade 6 side, it is guided by the guide surface 80 of the guide plate 8. When the material to be cut reaches the blade edge 60 of the fixed blade 6, the positions relative to the blade edge 60 at each part of the gold mine in the longitudinal direction of the blade edge 60 are approximately aligned. go.

As a result, no jamming or lifting occurs when the material to be cut is fed to the fixed blade 6, and the feeding and cutting operations of the material to be cut become smooth.

As explained above, when the material to be cut is fed by the feeding roll, the means of the present invention allows the material to be cut to be rotated once by the blade 5.
With the blade edge 60 inclined at an inclination angle α with respect to the axial direction of the rotating shaft 3, the fixed blade 6 is turned toward the fixed blade 6 installed at the lower lip of the entrance 20 of the cutting chamber 2. Edge 60
Since the material to be cut is fed out in a state aligned with the curve, the material to be cut can be fed smoothly and a stable cutting action can be obtained. Therefore, the rotary blade 5 and the fixed blade 6 are formed into straight blades, and the fixed blade 6 is mounted in an inclined position with respect to the axial direction of the rotary shaft 3, while feeding and cutting the material to be cut. A cylindrical cutter that can be cut smoothly can now be obtained.

[Brief explanation of the drawing]

Figure 1 is a longitudinal cross-sectional side view of a conventional cylinder type cutter, Figure 2
The figure is a perspective view of the cutting mechanism same as the above, FIG. 3 is a side view of the rotary blade same as the above, and FIG. 4 is a plan view of the rotary blade same as the above. FIG. 5 is a perspective view of the main parts of a cylinder-type cutter of the form targeted by the present invention, and FIG. 6 is a developed view of the same main parts. 7th
The figure is a partially cutaway side view of the main part of a cylinder-type cutter that can implement the feeding device according to the present invention, FIG. 8 is a developed view of the same main part, and FIG. 9 is a part of the main part of another embodiment. A broken side view, FIG. 10 is a developed view of the main parts of the same, and FIG. 11 is a perspective view of the main parts of the same. Explanation of drawing symbols A...Cylinder type cutter...Machine frame 2...Cutting chamber 3...Rotary shaft 5...Rotary blade 50...Blade edge 6a...Blade 1, O... ... Supply gutter 20 ... Inlet 4 ... Blade mounting bracket 5a ... Blade 6 ... Fixed blade 60 ... Blade edge 7 ... Feed roll chamber 70 70a, 71a ... Rotation Shaft 72... Bearing support member 8... Guide plate 80... Guide surface z@Z... Other end 73... Set poles 8a, 8b... Edge XψX... One end α... Inclination angle 1... Feeding roll Δ Fig. 1 Patent applicant Shiraki Seisakusho Co., Ltd. Fig. 2 Fig.

Claims (2)

[Claims] (1) Infeed roll chamber 7 on the front side of the entrance 20 of the cutting chamber 2
The feed rolls 70 and 71, which are horizontally supported by shafts, are placed in the cutting chamber 2.
For a straight-edged fixed blade 6 that is fixedly installed in a position along the lower lip of the inlet 20 with a blade edge 60 inclined with respect to the axial direction of the rotating shaft 3 of the rotary blade 5, the fixed blade 6 is Inclined blade edge 60 and rotating shafts 70a and 7 of the feed rolls 70 and 71
A feeding device for a cylinder-type cutter that is horizontally supported with the axes of 1a parallel to each other. (2), feeding roll chamber 7 on the front side of the entrance 20 of the cutting chamber 2;
A feed roll 7 is horizontally supported with the axial direction of the rotating shafts 70a and 71a parallel to the axial direction of the rotating shaft 3 of the rotary blade 5.
0.71, a straight-edged fixed blade fixedly mounted in a position along the lower lip of the entrance 20 of the cutting chamber 2 with the blade edge 60 inclined with respect to the axial direction of the rotating shaft 3 of the rotary blade 5. 6, the edge of the guide surface on the feed rolls 70, 71 side is parallel to the axes of the rotation shafts 70a, 71a of the feed rolls 70, 71, and the edge of the guide surface on the fixed blade 6 side is the edge 6 of the fixed blade 6
A feeding device for a cylinder type cutter, which is provided with a guide plate 8 that is twisted parallel to the 0.