JPH02222812A - Recording mechanism for chopper bar-type recorder - Google Patents

Abstract

PURPOSE:To enable realization of a recorder which allows easier judgment of provided information by arranging a digital printing section to be movable independent of or in linkage with a printing section which prints for corresponding to colors. CONSTITUTION:An ink ribbon 5 composed of multiple colors is used to make possible a chopper bar-type recording with a printing section for digital prints disposed in parallel with a printing section for corresponding to colors on one line. This digital printing section for digital prints is so arranged to move independent of or in linkage with a printing section for prints for corresponding to colors and is moved independently to accomplish a chopper bar-type recording of multiple digital printing information in different colors from one another so that discrimination is possible between pieces of information. At this point, the digital printing section is retained with a cam with a cylinder groove driven directly or indirectly with a drive motor M and can be moved being carried on a subcarriage SB movable independently to match an action of the cam with a cylinder groove.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a recording mechanism of a dot recorder, and in particular, when an ink ribbon with a plurality of colors is used, it is possible to perform color-coded digital printing, and The present invention relates to a recording mechanism of a dot recorder that can improve quality.

<Prior art> For example, conventional dot recorders using ink ribbons now print digitally printed information such as instantaneous event information, message information, and alarm information that occurred during the same measurement time in the same color. was.

Problems that this invention aims to solve > This problem has the problem that it is difficult to distinguish and judge whether the printed content is event information, message information, or alarm information, making it difficult to use. Ta.

Further, in digital printing information, there is a problem in that the wire length and mutual arrangement angle that depend on the platen diameter have a negative effect on the printing quality depending on the wire 1-loak difference.

The present invention has been made in view of these problems of the conventional technology, and consists of two simple structures at low cost.
If there is different printed information such as event information, alarm information, message information, etc. that occurred during the same measurement time, I would like to change the color of the digital print during the same measurement recording to distinguish it from other information such as alarm information. It is an object of the present invention to provide a recording mechanism for a dot recorder that can be distinguished with the naked eye by printing information, etc., in a conspicuous color, for example, different from the previous printing color.

Another object of the present invention is to provide a recording mechanism for a dot recorder equipped with a wire dot printer mechanism that reduces variations in print quality.

Means for Solving the Problems In order to achieve the above object, the recording mechanism of the dot recorder of the present invention uses an ink ribbon having a plurality of colors, and prints corresponding to each color arranged in a row. and printing for digital printing in parallel, and the digital printing section that prints the digital printing is moved independently or in conjunction with the printing section that prints for each color. The digital printing part is characterized in that the digital printing part has a structure in which the digital printing part can be moved independently, thereby recording dots of a plurality of pieces of digital printing information in mutually different colors to enable identification between the pieces of information, and at this time, the digital printing part is A structure that can be mounted on the independently movable sub-carriage and moved in accordance with the movement of the cylindrical grooved cam by being locked to a circular #J grooved cam that is driven directly or indirectly by a drive motor. The digital printing section is characterized by comprising a plurality of wires having a circular cross section passing through the center line of the platen and having a plurality of adjacent wires arranged equiangularly, and a wire arranged at right angles to the center line of the plurality of wires. a damper, and a plurality of armatures that are arranged between the wire and the damper and hit the wire when it is attracted to the solenoid yoke, and the distance between the armature and the damper when it is attracted to the solenoid yoke is arranged equally for each armature. The present invention is characterized in that the total length of the wire away from the center line of the wire is corrected so that the distance between the plate 7 and the tip of each wire is approximately equal.

Function> It has multicolor dot recording wire tods for each color arranged in one row, and the wire tod for digital printing (constituting the digital printing section) is connected to the multicolor dot recording wire tod for each color. A dot recorder having a general head section having a structure arranged in a song has a structure in which the wire head for digital printing of the general head section can be moved independently or in combination with a multicolor dot recording wire tod for each color. do.

The moving distance at this time is set based on the width, arrangement, etc. of the ink ribbon.

Moreover, this moving structure consists of a structure that can move automatically, for example, on a sub-carriage that is made movable using a circle #i spring cam, etc. and has a rotation prevention guide at one end. The wire driver I- for digital printing is mounted, and at this time the cylindrical grooved cam is driven by a drive motor such as a stepping motor or a servo motor or via a gear device or the like.

In addition, regarding the digital dot, the armature stroke between each armature and the damper, which passes through the center of the platen with a circular cross section and is placed equiangularly and at right angles to the center line of many wires, is arranged equally, and the wire stroke is The total length of the wires away from the center line is corrected and placed so that they are equal to each other.

<Example> Examples will be described using specific drawings.

Regarding Claim 1.2> FIG. 1 is a partial cross-sectional structural diagram of a recording mechanism of a dot recorder which is a specific embodiment of claim 1.2 of the present invention, and FIG.
The exploded perspective view of the moving mechanism of the digital printing unit shown in the figure, and FIGS. 3 and 4 are diagrams for explaining the present invention.

In Figures 1 to 4, 1 is a platen that conveys recording paper (not shown) on which dot printing is to be performed, 2 is a carriage shaft arranged parallel to platen 1, and 3 is a carriage shaft that moves parallel to platen 1 on the carriage axis. Carriage 4 consisting of possible structures has multiple colors (51a to 51d) inside as shown in FIG.
, 52 to 52b) in which the ink ribbon 5 is stored; 6 is a ribbon cassette in which the ink ribbon 5 is stored;
- This is a cassette set member. 7 is a head section in which a printing mechanism (wire dot printer mechanism) for wire dots etc. necessary for dot recording is housed (details will be described later); 8 is a ribbon feeding mechanism for feeding the ink ribbon 5 in the ribbon cassette 4; , during recording when there is a drive signal, the ink ribbon 5 is sent along with the recording operation via the motor 8a and gear 8b of the ribbon feeding mechanism 8. As a result, a predetermined print is made on the recording paper on the platen 1 by the head section 7 using the ink ribbon 5.

Here, the head section 7 has a four-part structure, for example as shown in FIG.
For example, a multicolor dot recording wire tod head for each color (hereinafter referred to as "each color dot head") has a multicolor dot recording wire tod (not shown) for trend recording arranged in the direction.
As shown in FIG. 3, each color ink ribbon 51a to 51d,
71a indicates the wire tod marks for each color when placed and dotted at positions corresponding to 52a and 52b)
71, and the dots 7 corresponding to the respective colors also in the platen 1 direction.
A wire tod head for digital printing (hereinafter referred to as "digital dot") is equipped with a wire tod for digital printing (not shown), which serves as a digital printing part that prints for digital printing by passing through the space of the recessed part 1. head"
In FIG. 4, a color ink ribbon 52a is shown.

The wire stroke for digital printing for logging when placed at the position corresponding to 52b and dotted is shown by 72a) 72) are each provided independently, but the wire tod head part has a composite structure type. The digital dot head 72 has a structure that allows it to move independently or in conjunction with the dot heads 71 corresponding to each color. At this time, the independent movement further covers a certain range apart from the movement of the carriage 2.
It is mounted on a member called a subcarriage Ss which is movable in the direction of the arrow α in the figures and FIG. 4, and its movement is automatically controlled by electric signals etc. as will be described later. The moving distance ε at this time is determined by which color of the ink ribbon 5 is to be used for digital printing (that is, determined by the color arrangement of the ribbon), but is also determined by the corresponding ribbon width g. Ru.

Here, the moving mechanism of the subcarriage SS will be explained.

In order to make the subcarriage Sa a mechanism that can automatically control the movement by electric signals, the present invention uses a cylindrical grooved cam driven directly or indirectly by a drive motor, as shown in claim 2, One end is locked to this cylindrical grooved cam, and it has a structure that allows it to move independently and automatically in accordance with the movement of the cam. Specifically, for example, a driving motor M such as a stepping motor or a servo motor is driven by a movement signal, and the rotation is directly or indirectly connected to the driving motor M, or by using a gear a or a cylindrical groove. A sub-carriage having a rotation prevention guide portion at one end of the gear device configured to indirectly transmit rotation to a rotation transmission means consisting of a cam, etc. (Here, this indirect case will be specifically illustrated and explained) By moving SB and moving the subcarriage Sa by a distance ε in the direction of the arrow α, the moving device has a structure in which the digital dot 72 mounted on the subcarriage can be moved. In FIG. 2, two shafts 710 and 711 are fastened to the carriage 3 by press fitting. The shafts 710, 711 are provided with guide portions SB1, 710, 711, and 710, which are provided in the middle portion of the subcarriage SB so as to be slidable in the lateral direction. S82 is inserted and fitted. or,
A geared shaft 712 with a key 712a on the shaft and a gear 712b at the tip is attached to the carriage 3 so as to be rotatable and not fall out, forming a double-bearing shaft structure without using a bearing member together. do. On the other hand, in order to move the subcarriage Ss by a distance ε in the direction of the arrow α, a key spring 713a is provided inside which a key 712a can be inserted and engaged.
．． A cylindrical grooved cam 713 having a spiral groove 713b on the outside (on the outer diameter) engages with the geared shaft 712, and the digital dot head 72 of the subcarriage Sa is mounted on the spiral groove 713b. A guide convex portion Sa4 provided at the lower part of the portion S83 is fitted and engaged.

A drive motor M assembled to the carriage 3 is provided with a gear Ma that meshes with a gear 712b of a shaft 712 marked with *i. Further, a digital dot head 7 is mounted on the digital dot head 1 to the head mounting portion S83 of the subcarriage Sb.
2, a notch part See where the head 72a of the digital dot head 72 is located, and a fastening part SB7 for fastening the digital dot head 72.
and has.

With this configuration, when the drive motor M rotates in response to a command for a predetermined step length, for example, the subcarriage Sa moves by a predetermined distance (for example, ε) in the lateral direction α. Thereafter, the digital dot head 72 is commanded to print at a predetermined timing and dots. In order to return the moved sub-carriage S8 (return it to its original position), the drive motor M may be reversed by instructing a reverse step such as canceling the command of the previous step.

The relationship 1 between the plurality of colors and the width of the ink ribbon 5 corresponding to the structure of the wire dot head 72 corresponds to the relationship of each wire dot head portion, as shown in FIG.

For example, consider a case where the color correspondence is configured with six colors.

Colored inks 51a to 51a having widths d correspond to wire tods at respective positions arranged in a row of dot heads 71 corresponding to each color on both sides of the six-colored ink ribbon 5.
51d is colored, and the center part (dot head 7 corresponding to each color)
1) corresponding to the wire tod positions of the remaining two colors of the dot head 71 corresponding to each color, and a tolerance range corresponding to the movement of the digital dot head 72 (preferably, the part where the digital dot head 72 moves). The width is equal to the width of the color, and the wider the better), and the equal width of the two colors g
Colored inks 52a and 52b are arranged in different colors.

However, the color ink 52a, 52b may have the same width as the color ink 51a to 51d, provided that the life of the ribbon is not taken into account. One of the ink ribbons may be used for measurement and recording in the same way as the dot head 71 for each color.Although the ink ribbon is configured here to match the configuration of the dot head, conversely, the dot head can be configured to match the configuration of the ink ribbon. Needless to say, it is okay.

With such a configuration, FIG. 4(A).

As shown in FIG. 4B, when a predetermined measurement signal is input at a certain time, in FIG. One-color printing is performed using a different ink 51a, and the instantaneous event information that occurred during the same measurement time ntL is printed at the ribbon usage point 72a by the digital dot head 72 at the position of the different-color ink 52a.

By the way, for example, as shown in FIG. 4(B), if the value printed in one color using the color-specific ink 51a during the same measurement time is abnormal, the motor M is driven and the sub-carriage SB is The digital dot head 72 is moved to the right side in the figure, and the alarm information is sent to the position of the color ink 52b that is different from the color of the color ink 51a during this same measurement time, and the ribbon is used by the digital dot head 72. (72b) is printed. As a result, information regarding the state of the measurement signal can be instantly printed in a state that is easy to distinguish during the same measurement time.

Incidentally, in the present invention, the arrangement of the color inks is not limited to that shown in FIG. It corresponds to the color arrangement structure of . In other words, the color arrangement of the ink ribbon is determined by the arrangement of dot heads 71 and digital dot heads 72 corresponding to each color.

Alternatively, for example, it may be an array of colored inks shown in FIGS. 5A and 5B to explain the embodiment of the pond. That is, the arrangement in this case is such that the colored inks for the narrow-width dot heads 71 corresponding to each color and the colored inks for the wide-width digital dot heads 72 are arranged independently on either the left or right side (the fourth In this case, the dot head 71 corresponding to each color is placed on the right or left side instead of in the center as shown in Figure 4. The dot head 72 is placed in the opposite position. Regardless of the arrangement structure of the wire dots, as long as they are on the same time axis, there is no need to be particular about their positional relationship or location.

Regarding Claim 3> A specific embodiment of Claim 3 of the present invention will be described with reference to the drawings.

In the following drawings, parts that overlap with those in FIGS. 1 to 5 are given the same numbers, and their explanations will be omitted.

Figures 6 and 7 show the head section of wire dot printer I.
It is a diagram showing the general configuration of I side.

In the digital dot head 72 for logging in the upper layer of FIGS. 6 and 7, 72a is a large number of wires all having the same length (for example, here, n=6 as shown).
wires arranged at equiangular angle θ, ? 2b is a damper, 72c
is an armature 72a provided corresponding to each wire;
is a flexible printed board provided for transmitting a signal to the solenoid yoke 72e to operate each armature 72c in response to an external drive signal and to strike the corresponding wire. At this time, the solenoid yoke 72e
2 when the print signal is guided to the r-mature and the r-mature is sucked.
In order to equalize the gap d between the upper surface of the armature 72c and the damper 72b (hereinafter referred to as "armature stroke"), the damper 72b is arranged at right angles to the center line χ of the wire 72a. Also, regarding the dot heads 71 corresponding to each color for 1 to rend recording in the lower layer, if we correspond to the relationships shown in FIGS. 1 to 5, what will happen? Reference numeral 7a indicates a large number of wires arranged in a horizontal line, 71b a damper, 71c an armature provided corresponding to each wire, 71d a flexible printed board, and 11e a solenoid yoke. 0 indicates the center of the platen 1.

However, in such a configuration, the following problem may occur in the digital dot head 72 for logging in the upper layer.

The damper 72b has a structure in which the wires 72a are made of multiple wires of equal length and angle, and in order to make the armature stroke d uniform. Since the wire is arranged at right angles to the center line χ, the gap between the wire tip and the platen P (
Hereinafter referred to as ``wire stroke'', those far from the center line χ are wide (τ,), and those close to the center line χ are narrow (τ
2) Variations in print quality occur. That is, since the wire lengths are all equal, the wire stroke difference (τ, -τ2) depending on θ and the platen diameter is usually 0.1 mm or more, which affects printing quality. Furthermore, if the damper 712 is aligned with the arc of the platen in order to make the wire stroke τ uniform, the armature stroke d will become uneven, which will have a negative effect on printing quality.To solve this problem, the wire tip should be polished to match the platen shape. Although it is possible to do so, it would require an increase in the number of processes and equipment investment.

Therefore, in such a wire dot printer that prints on a cylindrical platen, the armature strokes and wire strokes of a large number of wires are made uniform to reduce variations in print quality between the wires.

This will be explained below using the drawings.

FIG. 8 is a schematic explanatory diagram showing a specific embodiment of the wire dot printer mechanism according to claim 3 of the present invention.

In FIG. 8, the feature of the present invention is that a large number of wires 72 (n=6) pass through the center O of the platen, which has a circular cross section, at an equiangular angle θ.
a (However, (n-1) wire near the center line χ of θ) ~ 7
2a+ (however, a wire away from the center line χ) is arranged, it has a damper 72b1 arranged at right angles to the center line χ of the many wires, and this damper 72b1 and the armature 72c form the solenoid yoke 72G. In order to make the armature stroke do equal to each armature #J (the energy transmitted to all wires is equal) and the wire stroke τ0 to be equal to each wire, line χ
The structure is such that the entire length of the wire 72a separated from the wire 72a is corrected. At this time, the total length of the wire 72a is corrected to be τ, -τ2 0.1 mm.

It goes without saying that if there are a large number of wires, design consideration may be taken to correct the lengths for two types of wires.

<Effects of the Invention> Since the present invention is configured as described above, it produces the following effects.

According to claims 1 and 2, the color of digital printing can be changed at low cost, with precision, and with a simple configuration. As a result, since colored characters are printed instantly upon occurrence, it is possible to realize a recorder that is very easy to read, or in other words, it is easy to distinguish whether information is being provided. In addition, since there is a difference in the printing of message information, event information, alarm information, etc. that occurred at the same time as before, this point becomes an important factor in sales performance.

According to claim 3, the armature stroke of each wire is determined by selectively using wire lengths.

It becomes possible to make the wire stroke uniform, and as the frequency response and printing pressure become equal, printing quality can be improved. This point is also an important factor in sales performance.

[Brief explanation of the drawing]

FIG. 1 is a partial cross-sectional structural view of a recording mechanism of a dot recorder that is a specific embodiment of the present invention, FIG. 2 is an exploded perspective view of a moving mechanism of a digital printing section in FIG. 1, and FIGS. FIG. 4 is a diagram for explaining the present invention, FIG. 5 is a diagram for explaining other embodiments, FIGS. 6 and 7 are diagrams showing the general configuration of the wire dot printer mechanism of the head section, and FIG. 8 is a diagram for explaining the present invention. FIG. 3 is a schematic explanatory diagram showing a specific embodiment of the wire dot printer mechanism according to claim 3 of the present invention. 1...Platen, 2...Carriage offer, 3...
Carriage, 4... Ribbon cassette, 5... Ink ribbon, 6... Cassette 1 to set, 7... Head section, 8... Ribbon feeding mechanism. Figure 1 Figure 3 Figure 6 Figure 8 Figure 7

Claims (3)

[Claims] (1) The recording mechanism of the dot recorder has a structure that allows dot recording of prints for each color and digital prints arranged in a row using ink ribbons of multiple colors in parallel; The digital printing section that prints for digital printing is movable independently or in conjunction with the printing section that prints for each color, and by moving independently, a plurality of digital printing information can be printed in different colors. A recording mechanism for a dot recorder, characterized in that it records dots and makes it possible to identify information. (2) In the recording mechanism of the dot recorder according to claim 1, the digital printing section is engaged with a cylindrical grooved cam driven directly or indirectly by a drive motor, and is adapted to the movement of the cylindrical grooved cam. A recording mechanism for a dot recorder, characterized in that the recording mechanism comprises a structure that is mounted on and movable on the independently movable sub-carriage. (3) In the recording mechanism of the dot recorder according to claim 1, the digital printing section includes a plurality of wires each passing through the center line of a platen having a circular cross section and having a plurality of adjacent wires arranged equiangularly. It consists of a damper arranged perpendicular to the center line, and a plurality of armatures arranged between the wire/damper and striking the wire when it is attracted to the solenoid yoke. A recording mechanism of a dot recorder, characterized in that the total length of the wire away from the center line of the wire is corrected so that the distance between the platen and the tip of the wire is approximately equal for each armature, and the distance between the platen and the tip of the wire is approximately equal for each wire. .