JPH0561569B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a recording device that records various desired measurement values on recording paper based on input signals.

[Prior Art] Conventionally, when trend recording of various measured values such as temperature, voltage, etc. is performed on a recording paper based on an input signal, a recording device using a dot dot is used. In addition, a Benn recording device was used to record numerical values and signals (characters) indicating various measured values.

[Problems to be Solved by the Invention] Therefore, in the conventional recording device described above, two recording devices are required to record trends of various measured values and record characters. It was difficult to switch to

Therefore, in order to solve the above-mentioned problems, when considering recording by providing the dotting tip and pen in a common recording device, a motor that moves the dotting tip and pen in the axial direction, a motor that moves the dotting tip up and down, Four motors are required: one to move the pen in a direction perpendicular to the axis, and another to move the pen up and down, and it is difficult to fit these motors compactly within the limited space of the recording device. Since the drive mechanism is also complicated, there is a problem in that the device itself becomes larger.

The present invention has been made in view of the above-mentioned problems, and its purpose is to minimize the number of motors that operate the dotting means and printing means installed in a common unit, thereby reducing the number of parts and simplifying the process. An object of the present invention is to provide a recording device that can arbitrarily switch between trend recording and character recording of various measured values using a driving mechanism.

[Means for solving the problems] In order to achieve the above object, the recording device of the present invention has the following features:
A common recording unit is equipped with a dotting means for recording trends of various measured values on a recording paper conveyed on a drum based on an input signal, and a printing means for recording characters indicating the measured values on the recording paper, and the dotting means and a switching drive means for selectively operating the printing means, the switching drive means comprising: a first motor that moves the recording unit in the horizontal direction; a second motor that moves in the front-back direction along the conveyance direction; and a third motor that selectively moves the dotting means up and down with respect to the recording paper surface and the printing means up and down with respect to the recording paper surface via a cam mechanism. It is characterized by being equipped with a motor.

[Function] When selectively switching and operating the dotting means for trend recording and the printing means for recording characters, both of which are installed in a common recording unit, the first motor of the switching drive means moves the recording unit to the drum. move laterally along the longitudinal direction of. Also,
The second motor moves the printing means in the front-rear direction along the conveyance direction of the recording paper. Furthermore, the third motor selectively switches and operates the dotting means and the printing means with respect to the surface of the recording paper via a cam mechanism.

[Embodiment] Hereinafter, an embodiment of the recording apparatus of the present invention will be described based on the drawings.

FIG. 1 is an exploded perspective view of a recording apparatus according to the present invention. The recording device is installed on a plate-shaped chassis 1 with an open front and on the upper front of the chassis 1, and records various measured values (for example, temperature, temperature, etc.) based on input signals.
A display section 2 that displays voltage (voltage, etc.) and a display section 2 located almost below the display section 2 and removably provided from the front surface of the chassis 1, rotates a drum 5 via a gear train 4 when driven by a motor 3. a chart stand 7 for conveying the recording paper 6; a recording unit 8 equipped with dotting means and printing means; and this recording unit 8.
Either the dotting means or the printing means can be automatically switched and activated by a signal, or the dotting means or the printing means can be manually switched and activated when necessary when a person wants to print characters or other characters. The recording unit 8 is driven by inputting an input signal, and the dotting means and printing means of the recording unit 8 are selectively switched and operated by the switching driving means. Desired dots and prints of various measured values are applied to the recording paper 6 based on the input signals.

The recording unit 8 is mounted on the side plate 1a of the chassis 1,
It is provided so as to penetrate through the main shaft 9 which is pivotally supported between 1a,
Two guide rollers 11, 11 are arranged so as to sandwich a guide shaft 10 which is supported between the side plates 1a, 1a of the chassis 1. Further, the recording unit 8 is supported by a wire 13 stretched between feed rollers 12, 12 provided on both side plates 1a, 1a of the chassis 1 and a rotating shaft roller 40a of a first motor 40, which will be described later. .

The dotting means of the recording unit 8 records trends of various measured values on the recording paper 6 based on input signals, and the printing means records characters indicating the measured values on the recording paper 6. be. Here, characters are letters, numbers, symbols,
It shows pictures, etc.

As shown in FIGS. 1 and 2, the dot point means has a bracket 14 which is pivotally supported on the recording unit 8 so as to be vertically movable. A shaft 15 passes through the bracket 14, and a dot 16 is provided at one end of the shaft 15. This dotting element 16 is formed into a disk shape, and is provided with protrusions 17 on its circumferential surface in a number corresponding to the number of input signals, and dots are made on the recording paper 6 using these protrusions 17 . Mounted on the bracket 14 is a cylindrical ink drum 18 containing ink of a plurality of colors corresponding to the number of protrusions 17 of the dot element 16. Further, gears 20, 20 are provided in mesh with each other at the end of the central shaft 19 of the ink drum 18 and the shaft 15. Further, a cylindrical member 21 is fixed to the other end of the shaft 15, and a number of pins 22 corresponding to the number of the protrusions 17 are arranged in a circle on one end surface of the cylindrical member 21. Further, between the side plates 8a, 8a of the recording unit 8, a wheel member 25 having a spiral switching protrusion 23 partially formed with a notch 23a and an operating cam 24 rotates in conjunction with the main shaft 9. It is arranged like this. Therefore, when the main shaft 9 is rotated in the direction of arrow A by the switching drive means, the wheel member 25 rotates in conjunction with this, and the actuating roller 26 provided on the bracket 14 moves the actuating cam 24.
The bracket 14 falls down together with the dotting element 16 and makes a dot on the recording paper 6. When the main shaft 9 further rotates in the direction of arrow A, the notch 23a of the switching protrusion 23 of the wheel member 25 gets entangled with the pin 22, rotates the cylindrical member 21, and rotates the dot 16. Switch to the next protrusion 17. Further, the protrusion 1 of the dot 16 is
7, the ink drum 18 rotates via the gears 20, 20, and the color dotted by the dot element 16 is changed.

Next, one side plate 8a of the recording unit 8
A protruding piece 27 is formed at the lower part, and a spring 28 is inserted on one side of the protruding piece 27.
Book guide pins 29, 29 are fixedly provided. A receiving member 31 on which a plotter pen 30 constituting printing means is mounted is slidably provided on the guide pins 29, 29. This receiving member 31 is normally held in the direction of an extrusion cam 37, which will be described later, by the biasing force of the spring 28. Further, this receiving member 31 includes a movable piece 32 that is slidably inserted into the guide pins 29, 29, and a movable piece 32 that is slidably inserted into the guide pins 29, 29.
The printer pen 3 is supported in a vertically movable manner.
0 includes a leaf spring 33 and a receiving plate 34 fixedly mounted with a screw (not shown). In addition, the plotter pen 30 is installed in the recording unit 8 compactly by being arranged almost parallel to the lower part of the dot pen 16, and there is no need to provide extra space on the recording paper 6. It is now possible to move effectively. moreover,
The movable piece 32 is provided with an actuating piece 35 having a small cylindrical projection 35a. This actuating piece 35
is pressed by the circumferential surface of an extrusion cam 37 provided on a rotating shaft 36 passing between both side plates 8a, 8a of the recording unit 8, and slides the receiving member 31 along the guide pins 29, 29. , the front printer pen 30 is moved in a direction perpendicular to the drum 5 (front-back direction).

Note that the extrusion cam 37 is shown in FIGS. 4 and 5.
As shown in the figure, a recess 37a is formed. The small protrusion is located in this recess 37a when the dotting means is activated, and in this state the push-out cam 37 is prevented from rotating counterclockwise.

Further, a sensor 38 detects a reference position of movement of the recording unit 8 in the main axis 9 direction (lateral direction).
is provided on the side plate 1a of the chassis 1, and this detection is performed by an operating projection 39 provided on the recording unit 8.

Next, the switching drive means is a first motor 40 that moves the recording unit 8 in the direction of the main shaft 9 (lateral direction).
Then, the printer pen 30, which serves as a printing means, intersects with the drum 5 via the gear train 55 (perpendicular in the embodiment).
A second motor 4 that moves in the direction of
1, a cam mechanism 42 controls the vertical movement of the dotting element 16 constituting the dotting means and the vertical movement of the plotter pen 30.
A third motor 43 is provided to selectively operate the motor. These first, second, and third motors 40,
Reference numerals 41 and 43 are, for example, pulse motors whose pulse drive is controlled by a microprocessor (not shown). The first motor 40 is disposed on the back plate 1b of the chassis 1, and when the first motor 40 rotates, the pulley 40a and the feed rollers 12, 12 on both side plates 1a, 1a of the chassis 1 are rotated.
The recording unit 8 is slid in the direction of the main shaft 9 via a wire 13 stretched between them. Also,
The second motor 41 is disposed at the upper back corner of the side plate 1a, and rotates a rotating shaft 36 through which the extrusion cam 37 passes through the printer pen 3.
0 is moved in a direction intersecting the drum 5.
Furthermore, the third motor 43 is fixed to a mounting plate 44 and is arranged on the side plate 1a of the chassis 1 via a gear mechanism constituted by a plurality of gears 45. The driving force of this third motor 43 is transmitted through the gear 45 of the gear mechanism to rotate the main shaft 9 on the one hand, and to drive one disc of the clutch plate 47 fixed to the switching cam 46 forming the cam mechanism 42 on the other hand. Member 47a
is rotating. Furthermore, the third motor 4
The driving force of No. 3 passes through the mounting plate 44 and rotates a light shielding member 48 fixed to the final gear 45a of the gear 45 of the gear mechanism. This light shielding member 48
detects the light of a transmission type sensor 50 provided on the back plate 1b of the chassis 1 through a printed board 49 so as to protrude inward of the chassis 1 every time a signal corresponding to the number of channels of input signals is input. is going on.

The clutch plate 47 is composed of two disc members 47a, 47a each having triangular protrusions 51 formed at a plurality of locations on its surface facing in opposite directions. Further, one disc member 47 fixed to the switching cam 46 is biased toward the other disc member 47a by a spring 53 inserted in a shaft 52 between it and the mounting plate 44. There is. Therefore, when the main shaft 9 is rotated in the direction of arrow A by the third motor 43, the projections 51, 51
Since the slopes 51a and 51a of the switching cam 46 come into contact with each other and the disc member 47a fixed to the switching cam 46 escapes toward the mounting plate 44, the disc member 4 fixed to the relay gear 45b
Only 7a rotates. Further, the slopes 51a, 5
1a, and when the main shaft 9 is reversed in the direction of arrow B, the vertical surface 51 of the protrusions 51, 51
b, 51 are engaged to move the cutting cam 46 to the main shaft 9.
and rotate in the opposite direction. At this time, the operating roller 2 of the bracket 14 is inserted into the notch 24a of the operating cam 24.
The actuating cam 24 is arranged so that the dot 6 does not fall down and make a dot on the recording paper 6. Furthermore, when the switching cam 46 rotates, the convex portion 46a of the switching cam 46 moves along with the swinging arm 54 supported between the side plates 1a, 1a of the chassis 1 and the plotter pen 30.
move up and down. Note that in the initial state or in the state in which dots are made on the recording paper 6, the dots are locked between the locking pin 56 of the disc member 47a fixed to the switching cam 46 and the locking pin 44a of the mounting plate 44. A spring 57 holds the shaft of the swing arm 54 relative to the switching cam 46 in the position shown in FIG. 4a.

Next, the operation of the recording apparatus configured as described above will be explained.

First, when the dotting element 16 serving as dotting means is operated to record trends of various measured values on the recording paper 6 based on input signals, when the first input signal is input, the first motor 40 is driven and the recording is performed. The unit 8 moves along the main shaft 9 to a predetermined position on the recording paper 6 and stops (the state shown in FIG. 4a). Subsequently, the third motor 43 is driven, and the main shaft 9 rotates in the direction of arrow A to drop the dotting element 16 to make dots on the recording paper 6 (the state shown in FIG. 4b). Furthermore, when the next input signal is input, the first motor 40 moves the recording unit 8 to the next predetermined position on the recording paper 6, while the third motor 43 moves the main shaft 9.
further rotates, and the dotting element 16 and ink drum 18
By rotating the , the color of the dots can be changed. Then, when the recording unit 8 stops at the predetermined position, dots are recorded on the recording paper 6. Hereinafter, the above-described operation is performed every time an input signal is input, and trends corresponding to the number of input signal channels are recorded on the recording paper 6.

Next, when operating the plotter pen 30 serving as a printing means to record a character indicating the measured value on the recording paper 6, the first motor 40 is driven and the recording unit 8 is moved along the main shaft 9 onto the recording paper 6. It moves to a predetermined position and stops (the state shown in Fig. 4a).
Next, the third motor 43 reverses the main shaft 9 in the direction of arrow B to raise the plotter pen 30, and the second motor 41 rotates the extrusion cam 37 to move the plotter pen 30 onto the recording paper. 6 to the specified writing start position (5th
Figure a). Next, the main shaft 9 is rotated in the direction of arrow B by the third motor 43 to lower the plotter pen 30 onto the recording paper 6 (the state shown in FIG. 5b). Then, the plotter pen 30 is moved in the direction of the main axis 9 (X direction) and in the direction perpendicular to the drum 5 (Y direction) by the first motor 40 and the second motor 41.
direction) to record the characters on the recording paper 6. If the line recording is interrupted during this period, the third motor 43 rotates the main shaft 9 in the direction of arrow A to raise the plotter pen 30 again, and the first motor 40 After moving the recording unit 8 to the next predetermined position on the recording paper 6, the above-described operations are repeated to record desired characters indicating measured values on the recording paper 6.

[Effects of the Invention] As explained above, according to the recording device of the present invention, trend recording by the dot means and character recording by the printing means can be arbitrarily switched using a simple drive mechanism mainly consisting of a motor, a cam mechanism, and a gear mechanism. It can be done efficiently. In addition, since a single motor serves as a part of the operation of the dotting means and the printing means, only three motors are required in total, which reduces the number of parts and contributes to the downsizing of the device. can do.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing an embodiment of the recording device according to the present invention, FIG. 2 is an exploded perspective view of a recording unit in the same device, and FIGS. 3a and 3b are switching drive means in the same device. Fig. 4a and b are diagrams showing the operation of the dotting element forming the dotting means, and Figs. , is an operation diagram of a printer pen serving as a printing means. 6... Recording paper, 8... Recording unit, 16...
Dotting element (dotting means), 30... plotter pen (printing means), 40... first motor, 41... second motor, 42... cam mechanism, 43... third motor.

Claims (1)

[Scope of Claims] 1. A recording unit in which dot dotting means for recording trends of various measured values on a recording paper conveyed on a drum based on an input signal and printing means for recording characters indicating the measured values on the recording paper are common. equipped with
A recording device comprising a switching drive means for selectively operating the dotting means and the printing means, the switching drive means comprising: a first motor for laterally moving the recording unit; and a first motor for moving the recording unit laterally; a second motor that moves in the front-rear direction along the conveyance direction of the recording paper; and a cam mechanism selectively moving the dotting means up and down with respect to the recording paper surface and the printing means up and down with respect to the recording paper surface. A recording device comprising: a third motor.