JPH0440880Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a continuous paper cutting device that cuts continuous paper having perforations formed at predetermined intervals in the continuous direction from predetermined perforation positions.

Conventionally, continuous paper cutting devices have a structure in which a feed roller, a blade with a protruding central part, and a discharge roller that rotates at a higher speed than the feed roller are installed in sequence in the direction of conveyance of the continuous paper. During transport through the cutting device, a tension is applied to the continuous paper due to the difference in transport speed between the feed roller and the discharge roller, and the continuous paper is torn by making a tearing cut in the center of the paper by the blade.

Therefore, at the moment of tearing when cutting, continuous paper makes a high-pitched cutting sound due to the crushing sound when the central part is pierced by the blade, and the perforation position when tearing multiple sheets of continuous paper for copying. In the front and surrounding areas, there is a high cutting sound due to the crushing sound caused by the blade that protrudes from the center, and when tearing multiple sheets of continuous copy paper, the center part Due to the protruding blade, blade pressure is easily applied inadvertently, and damage such as blade marks being copied on the second and subsequent sheets is likely to occur, so it is not very desirable for cutting continuous paper. Ta.

In view of these points, this idea has been improved compared to the conventional one.
To provide a continuous cutting device capable of performing stable cutting processing with little cutting noise and without causing damage such as careless scratches with a blade even when a large number of sheets of continuous paper are cut.

Next, this invention will be explained based on drawings showing one embodiment of this invention.

FIG. 1 is an explanatory cross-sectional view of the continuous paper cutting device 1 of this invention.
The continuous paper F placed on the form table 2 is transported by pulling it up from the end and pulling it down again to cut it, and two or more shafts are used along the transport direction of the continuous paper F Tension shafts 4, 5, 6 are provided with form guides 3 for preventing meandering at the width positions on both sides of the continuous paper F in the first shaft on the insertion section side, A transport guide 8 that covers the area and prevents meandering, a transport roller 9 that has windows on the top and bottom of the transport guide 8 so that rollers face each other from above and below to transport the continuous paper F in the transport guide 8, and a transport guide. A slitter 11 consisting of upper and lower rotary teeth cuts the edges of one side or both sides of the continuous paper F discharged from 8 in the continuous direction, and further, feeding rollers 12 and 13 leading to the cutting mechanism section, and the feeding rollers 12 and 13. roller 1
A tension member 14 that protrudes in the transport direction of the rollers 2 and 13, crosses the transport direction, and forms an edge;
a discharge roller 15 with a higher wind speed than 2,13;
16 are provided in sequence, and the edge of this tension member is such that one side of the edge has a longer distance connecting the feed roller, the edge, and the discharge roller than the other side, and the distance connecting the feed roller and the edge has a longer distance than the other side. are set short and arranged diagonally. In other words, the continuous paper F passes over the tension member 14 and passes through the feeding rollers 12, 13 and the discharging rollers 15, 16.
The perforation m at the cutting position of this continuous paper F when it is in a tensioned state for cutting while being transported between
The angle is set such that one side of both ends of the position reaches one end of the tension member 14 first. Furthermore, as shown in FIG.
In a state in which a feeding path is formed by the feeding rollers 12 and 13 by the cushioning member 19 fixed so as to be vertically movable at 8, one side of the cushioning member 19 is connected to the feeding roller and the cushioning member 1 with respect to the other side.
9 and the delivery roller is set to be long, and the side feed of the transported continuous paper F is slightly tilted to one side, and the continuous paper F is transferred to the delivery rollers 15 and 16 side.
The sides of the tension member 14 are inserted into the delivery rollers 15 and 16, and the positional relationship between the edges of the tension member 14 and the feeding rollers 12 and 13 and the delivery rollers 15 and 16 is reversed. There is. and,
A tension is applied to the continuous paper F due to the difference in transport speed between the feed rollers 12, 13 and the discharge rollers 15, 16, but the tension is applied to one side of the continuous paper F first. It is sufficient to fix the tension member 14 so that one end of the tension member 14 first abuts the perforation m position at the cutting position of the continuous paper F where the tension is applied.

Moreover, since the continuous paper F continues to be transported during this time, if the other side of the tension member 14 is biased towards the delivery rollers 15 and 16, the perforation m at the cutting position of the continuous paper F will be placed on the edge of the tension member 14. A cut is performed along the vicinity.

In addition, in the above, the cushion member 19 not only transports the continuous paper F to the delivery rollers 15 and 16 with a slight inclination, but also causes the continuous paper F to be gripped onto the delivery rollers 15 and 16 with some slack. When the delivery rollers 15 and 16, which have a faster circumferential speed than the feeding rollers 12 and 13, grip the continuous paper F, the delivery rollers 15 and 16 move closer to the feeding rollers 12 and 13 and the delivery roller 15. , 16, but at this time the cushion member 19 moves downward, so
Due to this slack, the continuous paper F cannot be immediately given tension for cutting. Therefore, it is possible to avoid applying tension for cutting to the continuous paper F due to insufficient gripping of the delivery rollers 15 and 16, and to apply tension for cutting to the continuous paper F with the delivery rollers 15 and 16 sufficiently gripped. Tension is provided to ensure stable and reliable cutting.

In addition, a plurality of strip transport guide sides 27 are provided extending from the feed rollers 12, 13 to the tension member 14 so that the continuous paper F transferred by the feed rollers 12, 13 can smoothly pass over the tension member 14. , is fixed to the side of the tension member 14, and is attached to the transfer guide piece 2 of the feed roller 13.
7 passes through a groove 28 provided at a sufficient depth to prevent it from protruding, and is attached so as to penetrate between the feeding rollers 12 and 13.

Furthermore, a conveyor belt 26 is stretched over the pulley 20, the discharge roller 16, and the transfer roller 21, and the conveyor belt 25 is stretched over the pulley 22, the discharge roller 15, and the pulley 23.

Further, the delivery rollers 15 and 16 can move up and down to change the cutting size depending on the cutting size of the continuous paper F, so by moving the delivery rollers 15 and 16, Conveyor belt 2
5, 26 to eliminate the slack in the conveyor belt 2.
Tension rollers 31 and 32 are provided inside the rollers 5 and 26.

In use, the continuous paper cutting device 1 of this invention having the above structure pulls out the continuous paper F on the form holder 2 from the end, stitches the three tension shafts 4, 5, and 6, and transfers it to the transfer guide 8. In the transfer guide 8, the continuous paper F is transferred by the feed rollers 9 and 10, but the continuous paper F is transferred by the form guide 3.
Then, it is transported forward without meandering by the transport guide 8 that guides the top, bottom, and both sides, and the ears on both sides are cut off by the slitter 11 to reach the feeding rollers 12 and 13.

From the feeding rollers 12 and 13 to the tension member 1
4. The continuous paper F transferred beyond the cushion member 19 is moved by its own weight to the delivery roller 15 located at the bottom,
16, is guided by conveyor belts 25, 26, is smoothly gripped by discharge rollers 15, 16, and cutting is started. At this time, as shown in FIG. 3A and B, the continuous paper F is torn along the edge of the tension member 14 from one side of the perforation m at the cutting position while being transported, so that reliable cutting is performed with extremely low noise. It can be done.

After that, the cut paper is transferred to the conveyor belts 25, 2
6 and stacked in the stacker 33.

Further, due to the structure in which the feeding rollers 12, 13 and the tension member 14 provided in front of the feeding rollers 12, 13 in the feeding direction, the feeding rollers 15, 16 are provided in the lower direction with respect to the feeding direction, The tension member 14, together with the tension of the feeding rollers 12, 13 and the ejection rollers 15, 16, provides a cutting effect for cutting the continuous paper F without causing any hindrance to the transport of the continuous paper F. The tension provided by the feed rollers 12, 13 and the discharge rollers 15, 16 can be made extremely efficient, and the cutting process can be achieved without having to be sudden or strong, and the crushing noise can be further reduced. This makes it possible to reduce cutting noise. Furthermore, the installation space can be reduced to a large width in the horizontal direction, making it extremely suitable for use in offices and the like.

Furthermore, the stacker section in FIG. 1 may be a vertical stacker 133 that stacks cut sheets vertically as shown in FIG.
A guide bar 134 is provided on the entire surface of the shaft, and this guide lever 134 also serves as a jam stopper. Further, the stacker 133 gradually moves backward (→ mark) according to the amount of cut sheets, so that a large amount of sheets can be stacked.

As described above, according to this invention, when the continuous paper reaches the delivery roller and receives the tension, the cushion member is pulled down. The paper can be torn by hitting it against the tension member from either side of the perforation line of the continuous paper, and can be torn by hitting the tension member from one side of the perforation line, making the cutting noise extremely low compared to the conventional method of crushing the central part. This allows for reliable and smooth cutting.

[Brief explanation of the drawing]

FIG. 1 is a side cross-sectional explanatory view of the continuous paper cutting device according to this invention, FIG. 2 is a partial perspective view of the continuous paper cutting device of FIG. FIG. 4 is an explanatory diagram of a continuous paper cutting state in the cutting device, and FIG. 4 is a side cross-sectional explanatory diagram of the continuous paper cutting device showing another embodiment. 1 is a continuous paper cutting device, 12 and 13 are feeding rollers, 14 is a tension member, 15 and 16 are delivery rollers, 19 is a cushion member, F is a continuous paper sheet,
m is perforation.

Claims (1)

[Scope of utility model registration request] A tension member is provided with a delivery roller that applies tension due to a difference in circumferential speed between the feeding roller and the feeding roller, and has a substantially linear edge that crosses a continuous paper transport path between the feeding roller and the delivery roller. and a portion protruding from the tension member,
and a cushion member that guides the conveyance of the continuous sheet of paper at an angle, and the cushion member has elasticity so as to be pulled down when the sheet reaches the discharge roller from the feed roller and is subjected to a tensile tension. Continuous paper cutting device.