JPH08267397A - Modified micro machine blade and manufacture thereof - Google Patents

Abstract

PURPOSE: To provide a machine blade and manufacture thereof for providing sheet material which facilitates the cutting of the whole of perforation and can also be cut by a mechanical means by making it possible to cut the portion from which cutting starts with ease. CONSTITUTION: The blade tip 18 of a machine blade 17 is provided with notch part 21 so as to leave the blade of the portion where a cutting part 4 is provided. Many notch part 21 are spacedly provided with specified space 22. The space 22 near the center D of the machine blade 17 is different from the space E and F near both sides of the blade 17. The machine blade 17 can be manufactured by letting a wire-like member abut and slide on the portion to be notched in the blade tip 18 of the machine blade 17. A continuous wire-like member is used and is let to continuously be slid while being carried in a direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet material such as paper which is easily cut by providing perforations, a sewing blade used for processing the sheet material, and manufacturing of this sewing blade. It is about the method.

[0002]

2. Description of the Related Art Conventionally, perforations have been used so that a sheet material such as paper can be easily cut. Perforations are provided in advance at the portion to be cut, and perforations are not required without using scissors. I was able to cut along.
In this perforation, innumerable short cuts that are intermittently provided are provided so as to coincide with a virtual line to be cut, and the cuts form a substantially broken line shape. The length of the cut portion is about several millimeters, and one cut portion and an adjacent cut portion are provided so as to have the same distance. Therefore, by breaking a few millimeters between the cut portions, the broken line formed by the cut portions is made linear, thereby enabling cutting at the position.

Further, the perforation blade used for providing the perforations as described above has a blade tip of a portion corresponding to a cut portion to be provided on the sheet material among the blade tips provided on the long main body. As described above, the notch portions at equal intervals are provided intermittently. That is, a portion of the sheet material that does not require a cut portion is cut out. Then, the perforation blade is installed on the cutter roller so that its longitudinal direction is aligned with the width direction of the sheet material to be provided with perforations, and the width of the sheet material is increased by rotating the cutter roller in accordance with the conveyance of the sheet material. Perforations were provided in the direction.

Further, in order to manufacture the above-mentioned sewing machine blade,
A continuous cutting edge is provided on one side of the long side of the long sewing machine blade main body, and portions of the cutting edge where the notches are to be provided are cut out at equal intervals.

[0005]

However, in the sheet material having perforations as described above, since the intervals of the notches forming the perforations are wide, it is possible to manually cut slowly, but a burster or the like. When cutting by the mechanical means, there were cases where the cutting was insufficient or a portion where the cutting was not planned was torn. In particular, in recent years, many companies process computers such as customer management. At that time, various invoices such as invoices and receipts are created by the computer, and this information is often printed by a printer. There is. Therefore, the sheet material to be printed by such a printer is divided by perforations with a predetermined length as a unit, and by cutting at the perforations, each slip can be separated for each customer. However, at this time, it was desired to be able to cut by mechanical means such as a burster.

Further, there has not been a perforated blade capable of providing the above-mentioned perforations and a manufacturing method thereof.

In view of the above points, the present invention facilitates the cutting of the entire range by facilitating the cutting of the portion where the cutting is started, and further provides the sheet material with perforations that can be cut by mechanical means. An object of the present invention is to provide a sewing machine blade and a manufacturing method thereof.

[0008]

In order to achieve the above-mentioned object, the present invention of a sewing machine blade, in a long sewing machine blade having a cutting edge intermittently in a longitudinal direction, the length of the cutting edge, or
A gist of the sewing machine blade is characterized in that the intervals between the blade edges are partially changed.

Further, according to the present invention relating to a method for manufacturing a sewing machine blade, a wire having a diameter of 0.1 to 0.2 mm is provided to a cutting edge continuously provided in a longitudinal direction of a thin and long sewing machine body. A gist of a method of manufacturing a sewing machine blade is characterized in that a part of a continuous blade edge is cut out by sliding while abutting with a shaped member.

[0010]

If the sewing machine blade is configured as described above, the perforation provided by the sewing machine blade has a length of a portion cut by the cutting edge (hereinafter referred to as a cut portion) or a length between the cut portion and the cut portion. Spacing part (hereinafter referred to as notch)
The length of is partially changed. If such a perforation is provided in the sheet material, a portion having a long cut portion and a short non-cut portion is easily separated because the continuous state of the sheet material is weakened, and conversely, the cut portion is short and the non-cut portion is long. The portions are difficult to separate because the sheet material has a strong continuous state. Therefore, by starting the cutting from the easily separable portion of the sheet material provided with the perforations as described above, it becomes easy to cut the portion, and at least in this portion, along the perforations It is more likely to be disconnected. Then, if a part is cut, the cutting direction is determined, and the other part can be cut along the perforation by applying a simple tensile load, so cutting with a mechanical means such as a burster. It will be easy to do. The range in which the cutting is planned to start at this time may differ depending on the structure of the burster or the like, but it is located at one half position in the width direction or one third.
It is generally considered that there are two locations at the position. Also,
Even if you plan to cut by hand as in the past, it is easier to cut from both sides of the sheet material assuming that the above-mentioned planned cutting start range is on both sides of the sheet material. Becomes

Further, if the method for manufacturing the sewing machine blade is configured as described above, the extremely thin linear member is slid in the state of being brought into contact with the cutting edge of the sewing machine blade body, so that the portion rubbed by the sliding is rubbed. The cutting edge can be cut out by removing the cutting edge. The cutout portion provided at this time has the same size as the diameter of the linear member, and a very fine cutout portion can be provided. Therefore, it is possible to manufacture a sewing machine blade in which the intervals between the blades are desired.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. First, a sheet material on which perforations are to be provided by the perforation blade according to the present invention will be described. As a sheet material of this type, as shown in FIG. 1, a continuous sheet material 1 used for printing by a printer connected to a computer is typical. A predetermined form 2 is printed on the surface of the sheet material 1, and information stored in the computer at a predetermined position in the form 2 is printed by a printer and then cut and separated for each form 2. This cutting position is planned in advance,
A perforation 3 in the width direction is provided in this portion. This perforation 3 is formed by disposing cuts 4 intermittently at a predetermined pitch a. As a matter of course, in this state, the continuous sheet material 1 is in a state of being partially cut at the cut portion 4 in the length direction, and a portion where the cut portion 4 is not provided (hereinafter The uncut portion 5 maintains the continuous state of the sheet material 1. If the uncut portion 5 is provided long, the respective foams 2 of the sheet material 1 are strongly continuous, and conversely if it is provided short, the continuous state is deteriorated. Further, if the cut portion 3 is provided with a short length, the continuous state of the sheet material is strong, and conversely, if provided with a long length, the continuous state of the sheet material is weakened. Therefore, in this embodiment, as shown in FIG.
As shown in, the length of the cut portion 4 in the perforation 3,
Or, the length of the uncut portion 5 is set to A near the center and B and C near both sides.
It is provided differently in and. That is, the notch 4 provided near the center A is longer than the notch 4 provided at both sides B and C, and the notch 5 is near the center A. Is shorter than both sides B and C. As a result, in the vicinity of the center A and in the vicinity of both sides B and C, the depth of cut per unit length is longer in the vicinity of the center A, and the continuous state of the sheet material 1 is in the vicinity of the center A than in the vicinity of both sides B and C. It is also weak, and it becomes easy to cut around the center A. Then, by starting the cutting from this portion (around the center) A, the cutting along the perforations 3 can be facilitated. Therefore, even if the cutting is performed by a mechanical means such as a burster, smooth cutting can be achieved. it can. By reversing the state of the cut portion 4 and the non-cut portion 5 in the vicinity of the center A and in the vicinity of both sides B and C, it is possible to facilitate the cutting in the vicinity of both sides B and C. Can be suitable when you plan to cut from the edge like.

Next, an embodiment of a perforation blade for providing the perforations 3 as described above on the sheet material 1 will be described.
Since the perforation 3 is provided inline in the step of printing the sheet material 1, the perforation blade is incorporated in a part of the printing device. Therefore, as shown in FIG. 3, the printing apparatus 10 is provided with a paper feeding unit 11, a printing unit 12, a processing unit 13, and a folding unit 14 in series. The sheet material 1 is supplied from the paper feed unit 11, and after the printing unit 12 prints the form 2 (FIG. 1), the processing unit 13 performs processing according to the purpose of the sheet material 1 and perforations 3 It is provided and finally bent by the bending unit 14 to a predetermined length. Among the above units, the processing unit 13 includes a perforation roller 15 having an axis line along the width direction of the sheet material 1 and a pressing roller 16 facing the perforation roller 15 as shown in FIG. The perforation roller 15 is pressed by the pressing roller 16, and both rollers 15 and 16 can rotate according to the conveying speed of the sheet material 1. A perforation blade 17 is held by the perforation roller 15, the tip of the cutting edge portion 18 projects slightly outward from the surface of the perforation roller 15, and the longitudinal direction of the perforation blade 17 is the perforation. It is adjusted so as to coincide with the axial direction of the eye roller 15. When the sheet material 1 passes between the rollers 15 and 16, the notch portion 4 (FIG. 1) is provided at a portion of the sewing machine blade 17 that is in contact with the blade edge portion 18, so that the blade edge portion 18 is provided.
It is possible to provide perforations matching the shape of the sheet material 1 in the width direction of the sheet material 1.

The cutting edge portion 18 of the sewing machine blade 17 as described above is entirely polished in a slanted transverse cross-section, and as shown in FIG. 5, a portion where a cut portion 4 (FIG. 1) should be provided. The notch 21 is provided so as to leave the blade. Here, since the notch 21 is provided so as to remove the blade, when the perforation is formed by the perforation roller 15 (FIG. 4), the sheet material is cut at the notch 21. It is not possible, and it becomes the notch 5 of the perforation 3. This notch 21
Can obtain its function if the blade of the blade tip portion 18 is dropped, but since the blade tip portion 18 naturally wears out during use in the perforation roller 15 (FIG. 4), it has a certain depth. And is cut out. And the notch 21
Are provided with a predetermined interval 22.
Is different in the vicinity of the center D and in the vicinity of both sides E and F. That is, the space 22a near the center D is provided to be longer than the spaces 22b and 22c near the sides E and F.
Therefore, the sheet material 1 is cut by the sewing machine blade 17 as described above.
When a perforation is provided in the center, the notch portion 4 formed by the blade, which is formed by the interval 22a in the vicinity D of the center, is
It becomes longer than the cut portion 4 by the blade constituted by the intervals 22b and 22c, and the perforation (FIG. 2) as described above can be configured. Similarly, as shown in FIG. 6, the distance 22a near the center D is equal to the distances E and F near both sides.
It is also possible to reverse the length of the cut portion 4 by providing it so as to be shorter than the intervals 22b and 22c.

Next, an embodiment of a method for providing the notch 21 of the sewing machine blade 17 as described above will be described. Although notches 21 can be provided in the sewing machine blade 17 one by one, this embodiment employs a manufacturing method in which about 50 sheets are stacked in order to improve manufacturing efficiency. As shown in FIG. 7, about 50 sewing machine blades 17 whose blade edges 18 have been polished in a slant shape beforehand are stacked and held. At this time, as a matter of course, the cutting edge portions 18 are laminated in the same direction. Further, on the side of the cutting edge portion 18 of the sewing machine blade 17, this cutting edge portion 18
A single linear member 23 is stretched in a straight line. Linear member 2
3 is supported by support portions 25 and 26 provided above and below with the holder 24 holding the sewing machine blade 17 interposed therebetween. The upper and lower support portions 25 and 26 are configured to be integrally movable, and the movement thereof can be controlled in units of 0.001 mm so that the portions of the cutting edge 18 of the sewing machine blade 17 to be cut should be cut. On the other hand, the linear member 23 is accurately brought into contact. Then, in this state, the linear member 2
3 is slid. However, if the thin linear member 23 is reciprocally slid while being brought into contact with the cutting edge portion 18, the linear member 23 will be easily broken. Therefore, by using a continuous linear member 23 and further by transporting the linear member 23 in one direction, the linear member 23 can be prevented from breaking.

In order to realize the above manufacturing method,
A device as shown in FIG. 7 was used. That is, the present apparatus is provided with a holder 24 for holding the sewing machine blade 17 so that the sewing machine blade 17 can be held with its longitudinal direction oriented laterally. Supporting portions 25 and 26 are provided above and below the holder 24 so that the linear member 23 can be stretched in the vertical direction. Also, both support parts 2
The reference numerals 5 and 26 are formed in a tubular shape, and the linear member 23 can penetrate the hollow inside thereof.
A winding device (not shown) is provided behind the lower support 26 so that the linear member 23 can be fed from the upper support 25 to the lower support 26. Further, this winding device pulls the linear member 23,
By imparting a resistance force to the supply of the linear member 23 in the upper support portion 25, the linear member 23 can be maintained in a stretched state. Further, water can be jetted upward from the lower support portion 26, so that the metal powder of the sewing machine blade 17 that comes out when it is cut out can be washed away, and the linear member 23 becomes hot due to friction. It is designed to prevent this. Then, as shown in FIG. 8, the upper and lower support portions 25 and 26 are fixed to the operating portion 27, and the operating portion 27 is controlled by the control device 29.
It is designed to operate while being sequence-controlled in units of 0.001 mm. Therefore, the upper and lower support portions 2
The linear member 23 stretched by 5, 26 can be moved while following the above control. On the other hand, the holder 24 is mounted on a table 28 to be fixed. Therefore, with respect to the cutting edge portion 18 of the sewing machine blade 17, the notch portion 21 having a width corresponding to the diameter of the linear member 23 (FIG. 5).
With a space of 0.001 mm 22
(Fig. 5) can be set.

It is needless to say that various embodiments can be taken without departing from the spirit of the present invention. For example, the perforation pattern is shown only in the vicinity of the center and on both sides, but this naturally differs depending on which position is set as the range to start cutting. Further, although the sheet material shown in the embodiment has been described as being used for a printer connected to a computer, it is obvious from the spirit of the present invention that the sheet material is not limited to such a sheet material.

[0018]

As described above, the invention relating to the sewing machine blade is such that in the long sewing machine blade having the blades which are intermittently arranged in a line in the longitudinal direction, the length of the cutting edge or the interval between the respective cutting edges is partially changed. Since the outline is an irregular micro-sewing machine blade, the length of the notch provided by the cutting edge can be changed when perforating a sheet material using such a sewing machine blade. Or, a part where no cutting part is provided due to the interval between the cutting edges (non-cutting part)
The length of can be changed. In this way, by partially changing the length of the cut portion or the length of the non-cut portion, the portion where the cut portion is long and the non-cut portion is short is easy to separate because the continuous state of the sheet material becomes weak. On the contrary, in the portion where the cut portion is short and the non-cut portion is long, it is difficult to separate the sheet material because the continuous state of the sheet material is strong. Therefore, by starting the cutting from the easily separable portion of the sheet material provided with the perforations as described above, it becomes easy to cut the portion, and at least in this portion, along the perforations It is more likely to be disconnected. Then, if a part is cut, the cutting direction is determined, and the other part can be cut along the perforation by applying a simple tensile load, so cutting with a mechanical means such as a burster. Will be able to. As described above, since it is possible to cut along the perforations by the mechanical means, it is possible to reduce the amount of paperwork.

Further, according to the invention of the method for manufacturing a sewing machine blade, a linear shape having a diameter of 0.1 to 0.2 mm is provided with respect to a cutting edge continuously provided in a longitudinal direction of a thin and long sewing machine blade main body. Since the gist of the manufacturing method of the sewing machine blade is characterized in that a part of the continuous cutting edge is cut out by sliding while being abutted by a member. , That is, 0.1 to 0.2
A notch having a width of about millimeter can be provided.
Therefore, when the perforation is provided on the sheet material, the length of the uncut portion can be provided in an extremely short state of about 0.1 mm. Further, when a notch with a large width is to be provided, it is sufficient to arrange several notches with a narrow width as described above, so that a notch with any width can be provided. Further, the gap between the cutouts, that is, the length of each cutting edge is not limited at all, and long or short blades can be arbitrarily processed.
Thereby, since the state of the cutting edge and the notch portion of the sewing machine blade can be freely provided, of the perforations provided by such a sewing machine blade, the position where the cutting is to be started is determined in advance, The width of the notch at the position where the cutting is about to be started can be narrowed, and the gap between the notches can be increased, and by performing such processing, the irregular sewing machine blade described above. Can be provided.

In the present invention, of the perforations provided on the sheet material, the gap between the cut portions, that is, the width of the cut portion of the perforation blade is set to an extremely thin state of about 0.1 mm. Therefore, when cut along such a perforation, the part that breaks is very small, the so-called jaggedness that can be formed on the edge of the cut part is small, and each sheet when each sheet material is individually cut and separated. The piece has a good appearance.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a sheet material.

FIG. 2 is an enlarged view of a perforated portion.

FIG. 3 is a perspective view showing the outline of a printing apparatus.

FIG. 4 is an explanatory diagram of a portion where perforations are provided.

FIG. 5 is a front view of a sewing machine blade.

FIG. 6 is a front view of a sewing machine blade.

FIG. 7 is a partial perspective view of a sewing machine manufacturing apparatus.

FIG. 8 is an overall perspective view of a sewing machine manufacturing apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 sheet material 2 foam 3 perforations 4 notches 5 notch 10 printing device 11 paper feeding unit 12 printing unit 13 processing unit 14 folding unit 15 perforation roller 16 pressing roller 17 perforation blade 18 cutting edge 21 notch

Claims (5)

[Claims] 1. An irregular micro-sewing machine blade, characterized in that the length of the cutting edge is partially changed in a long sewing blade having a cutting edge intermittently arranged in a line in the longitudinal direction. 2. An irregular micro-sewing machine blade, characterized in that a long sewing machine blade having a cutting edge which is intermittently arranged in a line in the longitudinal direction is formed by partially changing the interval between the cutting edges. 3. An irregular microsewing machine blade, wherein a long sewing machine blade having a cutting edge which is intermittently arranged in a line in the longitudinal direction is formed by partially changing the length of the cutting edge and the interval between the respective cutting edges. 4. A linear member having a diameter of 0.1 to 0.2 mm is brought into contact with and slides on a cutting edge continuously provided in the longitudinal direction of a thin long perforated blade main body. Accordingly, a method of manufacturing a sewing machine blade, characterized in that a part of a continuous cutting edge is cut out. 5. A sheet material using a perforation blade according to claim 1, comprising perforations provided by the perforation blade.