JPS61197200A - Burster - 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 [Field of Industrial Application] The present invention relates to a burster that cuts a continuous business form having perforations at regular intervals from the perforations to produce an individual business form.

(Prior art) A bar ski stretches a continuous business form that is conveyed across a paper feed roller and a paper discharge roller due to the difference in rotational peripheral speed between the paper feed roller and paper discharge roller. The perforation part of the continuous strength foam is pressed against the perforation and the perforation is cut.

The conventional break bar is constructed by attaching and fixing a spindle-shaped break roller to a rotating shaft. This break bar first breaks through the perforation of the continuous business form with the maximum outer diameter of the central part of the break roller.
Subsequently, the cutting of the perforation is further progressed by the tapered outer circumferential surfaces of the break roller on both sides, which are integrally continuous with the maximum outer diameter portion without any step.

(Problem to be Solved by the Invention) However, in the conventional burster equipped with a break bar having such a structure, when breaking through the perforation of a continuous business form, the perforation part is not only the maximum outer diameter part mentioned above. , because the impact force is dispersed by hitting the tapered outer circumferential surfaces on both sides, which are continuous without a step, the ability to break through is poor.Therefore, the more layers the continuous business form has, the more likely it is not to break through. Furthermore, conventional break rollers have a large overall shape and a large weight.Therefore, conventional break rollers that use the entire heavy break bar to cut perforations are difficult to improve the moving speed of continuous business forms. When increasing cutting efficiency, the contact resistance of the break bar is large and there is a high tendency that it cannot follow the moving speed.As a result, the maximum outer diameter of the break roller is Since the parts pass through while being in pressure contact, the rflrtA pressure at that time is large, and if the continuous business form is made of multilayer carbonless foam, the trace of the maximum outer diameter part will be marked on the second and subsequent forms. There is a problem that it gets crowded and becomes unsightly.

[Means for solving problems]

The present invention provides a continuous business form that is disposed between a pair of paper feed rollers and a pair of paper discharge rollers that rotate at a faster circumferential speed than these paper feed rollers, and that is conveyed between the two O-rollers. A break bar that breaks perforations at regular intervals along a direction perpendicular to the direction of movement of the continuous business form is connected to a fixed axis provided perpendicular to the direction of movement of the continuous business form, and the fixed axis of the continuous business form. A disc-shaped break roller is rotatably mounted approximately in the center, and the break roller is located on both sides of the play crawler and is fixed to the fixed shaft, and the outer surface of the continuous business form side is connected to the break roller. a pair of fixed break bodies each formed of an arcuate surface that gradually separates from the continuous business form from the roller side toward the end of the fixed shaft; The above-mentioned conventional problems are solved by making the break body protrude beyond the outer surface.

[Effect]

As described above, the present invention makes the outer periphery of the break roller of the break bar protrude beyond the outer surface of the pair of fixed break bodies provided on both sides of the roller, thereby making it possible to connect the break roller and the pair of fixed break bodies. There is a step in between. Therefore, it is possible to pierce the perforation of the continuous business form with only the extremely small area of the break roller, and the pierce performance can be improved. Next, the perforation pierced in this way is enlarged in the direction away from the break roller due to contact with the arcuate outer surfaces of the pair of fixed break bodies, and as described above, the perforation is continuous. A disconnection of the business form is made. In the above cutting process, the break bar is not rotated in its entirety, but only the break row holder is rotated, and the break roller is disc-shaped and extremely lightweight, so it can be used to cut continuous business forms. The rotation of the break roller during this time is extremely smooth. For this reason,
Even when the moving speed of a continuous business form is increased, it can be rotated sufficiently to follow the speed, and when the continuous business form is made of a multilayer carbonless form, etc., the above-mentioned roller is used for the second and subsequent forms. It is possible to prevent traces from being marked.

〔Example〕

An embodiment shown in FIGS. 1 to 6 will be described below.

Reference numeral 1 in FIGS. 4 and 5 indicates a main body of the burster, and in the front part of this main body 1 there is a pair of paper feed rollers 5 which are rotated in contact with each other and which move the continuous business form A between them.
2.3 is arranged, and the upper paper feed roller 3
A roller cover 4 is attached to cover the roller. The upper paper feed roller 2 is formed with a plurality of grooves 2a along the axial direction,
This groove 2a momentarily releases the continuous business form A from being held, so that the continuous business form A moves in a straight direction. Further, a pair of paper ejection rollers 5.6 are disposed at the contact portion of the burster main body 1, and are in rolling contact with each other and rotate faster than the paper feed rollers 2 and 3 to move the continuous business form A. At the same time, a roller cover 7 is attached to cover the upper paper ejection roller 5.

The burster main body 1 has a built-in drive motor 9 having a drive gear 8 that meshes with a driven gear r (not shown) attached to the end of the roller shaft of the lower paper ejection roller 6. and,
The paper discharge roller 6 and the paper feed roller 3 are rotated in the same direction in conjunction with each other via a transmission belt (not shown) or the like.

Further, in the burster main body 1, a flat foam traveling guide plate 10 is provided between the paper feed row 52.3 and the paper ejection roller 5.6, and extends over the lower paper feed and ejection roller 3.6. A plurality of presser ribbons 11 for jumping the continuous business form A are provided on the upper surface side of the guide plate 10. The ribbon 11 can be flexibly deformed and is supported by the roller cover 4 in a cantilevered manner.

Furthermore, a breaker 12 is disposed in the burster main body 1 between the paper feed roller 2.3 and the paper discharge roller 5.6. This breaker 12 is shown in detail in FIGS. 1 to 3, and is formed of a fixed shaft 13, a break roller 14, and a pair of fixed break bodies 15, as will be described in detail below.

The metal fixed shaft 13 moves the continuous business form A (
The guides 1γ are disposed along a direction perpendicular to the running direction, and both ends thereof are supported by guides 1γ fixed to the inner surface of the side frame 16 of the burster main body 1, respectively. It should be noted that this fixed shaft 13 is of course not rotatable, but in the case of this embodiment, it can be moved and adjusted along the guide 17 so as to correspond to the interval between the perforations a of the continuous business form A. The adjusted position is held by tightening the tightening screw 18.

The break roller 14 is made of stainless steel, for example, and is formed into a disk shape, and is rotatably attached to the substantially central portion of the fixed shaft 13. In the case of this embodiment, the break roller 14 has a fitting cylinder part 19 integrally protruding from both sides thereof, and a bearing is provided on the inner circumferential surface of this fitting cylinder part 19 to make the rotation lighter. A tube 20 is fitted thereinto, and the shaft 13 is rotatably fitted to the fixed shaft 13 via the bearing tube 20. Furthermore, in this embodiment, the width B of the break roller 14 is approximately 3 m, and the edges of the break roller 14 are rounded.

Further, the pair of fixed break bodies 15 are the break row 5.
14 and are fixed to the fixed shaft 13 by fixing members 21 such as screws. The outer surfaces of these break bodies 15 on the continuous business form A side gradually move away from the continuous business form A as they move from the break roller 14 side toward the end of the fixed shaft 13, and are formed into an arcuate surface.

The fixed break body 15 in this embodiment is formed of a generally wedge-shaped portion obtained by cutting a part of a truncated cone along the axial direction. The break roller side end 15a, which has the maximum diameter of these fixed break bodies 15, has the above-mentioned fitting cylinder part 1.
A step portion 22 is formed to escape from the end portion 9, and these end portions 15a are brought close to the break roller 14 with a slight gap between them. These fixed break bodies 15 are made of abrasive material such as polyacetal resin. It is integrally molded from a material with a small coefficient. Furthermore, the maximum diameter of the fixed break body 15 is smaller than the radius of the break roller 14, and therefore the outer peripheral portion of the break row 514 protrudes beyond the outer surface of the fixed break body 15.

In FIGS. 4 and 5, 23 is a form guide that can be moved and installed at any position on the form introduction plate 24 of the burster main body 1, 25 is a paper feed stacker that stores continuous business forms A, and 2G is an ejection stack. This is a paper stacker that stores individual business forms that are fed out from paper rollers 5 and 6.

To use the burster having the above structure, first operate the motor 9, then guide the continuous business form A in the paper feed stacker 25 to the form introduction plate 24 and move it to the paper feed roller 2.
．． All you have to do is squeeze it in between 3.

The continuous business form A is moved rearward between the form travel guide plate 10 and the presser ribbon 11 while being sandwiched between the paper feed rollers 2.
Sandwiched between 6. Then, due to the difference in peripheral speed between the paper feed roller 2.3 and the paper discharge roller 5.6, the continuous business form A is rapidly elongated while the ribbon 11 is flexibly deformed. As a result, the perforations a that the continuous business form A has at regular intervals along the direction perpendicular to the direction of movement of the continuous business form A hit the breakers 12.

In this case, since a step is formed between the break roller 14 of the break par 12 and the fixed break body 15 on both sides thereof, the perforation a hits only the break roller 14 and forms the outer surface of the fixed break body 15. There is no such thing as the same poem. Therefore, the contact area between the continuous business form A and the break par 12 at the time of breaking through the perforation a is extremely small, and the force that hits the perforation a is concentrated to easily and reliably break through the perforation a. I can do it.

At this point of breaking through, the break roller 14 instantly
Since a force is applied to rotate this roller 14, the break roller 14 follows and rotates, but since the break roller 14 is disc-shaped and therefore lightweight, the movement of the continuous business form A is Even if the speed is high,
It can reliably follow that speed and rotate.

After such a break-through is performed, the tension that continues to act on the continuous business form A causes the pair of fixed break bodies 15, each of which is a part of a conical surface, to break into an arcuate shape, as shown in FIG. As it is pushed open outward, the perforations a are further opened and torn. At this time, the range in which the continuous business form A contacts the fixed break body 15 is approximately 90 degrees as indicated by θ in FIG.
, and is cut without touching any other outer surface.

Further, due to the material of the fixed break body 15, the frictional resistance between it and the continuous business form A is extremely small. Therefore, as described above, in combination with the smooth rotation of the break roller 14 which is lightweight and has good followability, the ff15ff pressure applied to the continuous business form A during cutting can be reduced. Therefore, even if the continuous business form A is made of multiple layers of carbonless forms, it is possible to cut the continuous business form A while preventing traces of the breaker 12 from being marked on the continuous business form A.

It goes without saying that the continuous business form As is separated by the above-described cutting to obtain an individual form, and this individual form is delivered to the paper ejection stocker 26 by the paper ejection roller 5.6.

In this embodiment, the width B of the break roller 14 is
Since it is set to approximately 3 rin (provided that the outer diameter of the break roller 14 is 50 m), the above-mentioned high-performance cutting effect can be stably achieved at the original thickness. Note that as the width B becomes smaller than the above value, the break roller 14 tends to wobble, and as the width B becomes larger than the above value, the contact area with the continuous business form A becomes thicker (and in any case, the break roller 14 becomes unstable). This is undesirable because it increases the tendency for performance to deteriorate.

Further, in this embodiment, the break roller 14 is connected to the fitting cylinder portion 19.
This further prevents wobbling and improves cutting performance, and since the edges of the break roller 14 are rounded, the continuous business foam A made by laminating carbonless foam In the case of cutting, the generation of marks due to the break low 514 can be further prevented.

Furthermore, unlike conventional break rollers, the fixed break body 15 can be obtained by molding resin without the need for troublesome machining, so it can be obtained at low cost.

Although the above-described embodiment is constructed as described above, in the present invention, as shown in FIGS. 7 and 8, at least one fitting cylinder 15b of the fixed break body 15 is integrally formed. When attaching the fixed break body 15 to the fixed shaft 13, the upper &! The fixed break body 15 can be easily installed and fixed by inserting the fitting part 15b from the end of the pipe-shaped fixed shaft 13 toward the center, and tightening the fixture 21 of the fitting part 15b. It is also possible to have a structure in which Further, the fixed break body 15 may have a truncated cone shape. Further, in the above embodiment, the break bar 12 is disposed above the continuous strength form A, but the positional relationship may be reversed.

In addition, when carrying out the present invention, the specific structure, shape, position, material, etc. of the fixed shaft, break roller, fixed break body, fitting cylinder, etc. shall be changed from the above-mentioned embodiments, unless it is contrary to the gist of the invention. It goes without saying that the present invention is not limited to the examples and can be configured and implemented in various ways.

〔Effect of the invention〕

According to the present invention, the gist of which is the structure described in the claims, the cutting performance can be improved, so it is possible to cope with an increase in the number of sheets of continuous business forms to be cut and an increase in the moving speed of continuous business forms, and, This has the effect of preventing traces of break bars from remaining in continuous business forms.

[Brief explanation of the drawing]

1 to 6 show one embodiment of the present invention, in which FIG. 1 is an exploded perspective view of the break bar, FIG. 2 is a front view of the break bar, FIG. 3 is a bottom view of the break bar, and FIG. 4 is a bottom view of the break bar. The figure is a perspective view of the whole, FIG. 5 is a sectional view taken along the v-vta line in FIG. 4, and FIG. 6 is a perspective view showing how the continuous business form is cut. Figures 7 and 8 show other embodiments of the break bar, the seventh view being a perspective view and the side view of Figure 8 being a side view. 2.3... Paper feed roller, 5.6... Paper ejection roller, 1
2...Break bar, 13...Fixed shaft, 14...
Break roller, 15...Fixed break body, 19...
・Mating local area. Applicant's agent Patent attorney Takehiko Suzue Figure 6

Claims (3)

[Claims] (1) A break bar is provided between a pair of paper feed rollers that sandwich the continuous business form, and a pair of paper ejection rollers that rotate at a faster circumferential speed than these paper feed rollers and sandwich the continuous business form. A burster in which the break bar breaks perforations at regular intervals provided along a direction perpendicular to the direction of movement of the continuous business form conveyed between the two rollers, the break bar comprising: A fixed shaft provided perpendicularly to the moving direction of the continuous business form, a disc-shaped break roller rotatably mounted approximately in the center of this fixed shaft, and a disc-shaped break roller located on both sides of this break roller. are respectively attached and fixed to the fixed shaft, and the outer surface of the continuous business form is formed into an arcuate surface that gradually separates from the continuous business form as it goes from the break roller side toward the end of the fixed shaft. A burster comprising a pair of fixed break bodies, wherein an outer peripheral portion of the break roller protrudes beyond an outer surface of the fixed break body. (2) The burster according to claim (1), wherein the break roller has a width of approximately 3 mm. (3) In the statement of claim (1) or (2), the break roller is formed with a fitting cylinder portion that protrudes integrally from both surfaces thereof and that fits into the fixed shaft. A burster characterized by: