JPH111030A - Recording apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To continuously record even roll papers highly accurately by holding a printing part at an arm part having a first linear motion means, holding the arm part slidably at a base part having a second linear motion means, arranging the roll paper on a paper fit part, and transferring the paper by a roll paper transfer part. SOLUTION: An arm part 2 holds a printing part 1 in a manner to be slidable in an A direction. The arm part 2 has a guide rail 3 as a first linear motion means, a motor 4, a timing belt 6 and a driven pulley 7. A base part 8 is set to move the arm part 2 up and down, and provided with guide rails 9, 10 as a second linear motion means, a ball screw 11 and a motor 12. A paper fit part 15 is disposed via a constant distance from the printing part 1, which is coupled to a suction pump 17 via a plurality of paper suction holes 15a and a pipe 16. A printing part paper 18b at a roll paper transfer part 18 is sent from a feed roll 18a, passing on the paper fit part 15 to be fitted to a take-up roll 18c and transferred by a motor 19 in a C direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording apparatus capable of directly moving a printing section in two perpendicular directions.

[0002]

2. Description of the Related Art As a so-called XY plotter type recording apparatus capable of linearly moving a printing section in two perpendicular directions, a printing apparatus in which a cut sheet as a recording medium is fixed and the printing section is moved is known.

[0003]

In a conventional XY plotter type recording apparatus which fixes a sheet and moves a printing section, it is not necessary to transport a sheet which is vulnerable to environmental changes such as temperature and humidity by a roller or the like. If the transport accuracy of the linear motion mechanism of the printing unit composed of a rigid body is increased, there is an advantage that the final recording accuracy is increased. However, since the recording medium is cut paper, it is necessary to attach and remove the paper for each print job, and there is a problem that continuous printing cannot be performed.

[0004] It is an object of the present invention to provide a recording apparatus capable of continuously performing high-accuracy recording even on roll paper while eliminating the above-mentioned disadvantages.

[0005]

In order to achieve the above object, a printing section having a recording means, an arm section slidably holding the printing section and having a first linear moving means, and the arm section And a base portion having a second linear moving means, which is slidably held in a direction perpendicular to the moving direction of the first linear moving means, and a sheet having a sheet fastening means opposed to the printing section at a fixed distance. It is composed of a fastening section and a roll paper transport section having roll paper disposed on the paper fastening section and having transport means in the same direction as the moving direction of the arm section.

Further, a guide rail is provided at both ends of the arm portion as a second linear moving means of the base portion, and a ball screw and a motor are provided on one side. Then, a plurality of sheet suction holes were provided in the sheet fastening portion as sheet fastening means, and the sheet suction holes and the suction pump were connected by a pipe.

In the recording apparatus configured as described above, the roll paper is loaded on the paper fixing portion inside the guide rail provided at both ends of the arm portion, facing the printing portion. Further, since the transport direction of the roll paper is the same as the moving direction of the arm unit, there is no interference between the transport of the roll paper and the movement of the arm unit. In addition, the plurality of paper suction holes provided in the paper fixing portion allow the suction pump to operate during recording to securely fix the roll paper on the paper fixing portion. Conversely, by turning off the suction pump after recording, the roll paper can be easily conveyed on the paper fixing portion.

Further, as another means, the base portion is arranged such that the second linear moving means is in the vertical direction, and the roll paper transport portion is provided above and below the paper fixing portion. In this case, since the paper fixing portion is also in the vertical direction, not only the installation area of the recording apparatus can be reduced, but also the roll paper can be stably transported without slack because the transport direction is up and down.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of a recording apparatus showing an example of the present invention. To explain the configuration, 1 is a printing section using an ink jet system as recording means, and 2 is a printing section 1 indicated by an arrow A.
An arm that slidably holds in the direction. The first linear moving means provided on the arm portion 2 includes a guide rail 3, a motor 4, a driving pulley 5 mounted on a rotating shaft 4a of the motor 4, a timing belt 6, and a driven pulley 7. Here, since the printing unit 1 is slidably held by the guide rail 3 and partially fixed to the timing belt 6, the printing unit 1 moves in the direction of arrow A when the motor 4 rotates forward and backward. be able to.

Reference numeral 8 denotes a base portion, the second linear movement means of which are guide rails 9 and 10 provided at both ends and a ball screw 1
1, a motor 12, and a coupling 13, which are installed vertically in a vertical direction. here,
A motor 12 is connected to an end 11 a of the ball screw 11 via a coupling 13, and a block 14 screwed with the ball screw 11 and movable on the axis of the ball screw 11 is fixed to the arm 2. Therefore, since the block 14 moves on the axis of the ball screw 11 by the forward and reverse rotation of the motor 12, the arm 2 can move up and down in the direction of arrow B. Here, the moving direction of the arm unit 2 in the direction of arrow B is set to be perpendicular to the moving direction of the printing unit 1 in the direction of arrow A.

Reference numeral 15 denotes a paper fixing portion, which faces the printing portion 1 at a constant distance. A plurality of sheet suction holes 15a are provided in the sheet fastening section 15 as sheet fastening means.
It is connected to a suction pump 17 by a pipe 16. Here, for the sake of simplicity, FIG. 1 shows only the connection between the three sheet suction holes 15a and the pipe 16, but the same applies to the other sheet suction holes.

Reference numeral 18 denotes a roll paper transport unit, which includes a supply roll 18a, a printing paper 18b, and a take-up roll 18c.
The sheet is loaded from the supply roll 18a onto the take-up roll 18c through the paper fixing portion 15, and is conveyed in the direction of arrow C by the motor 19 connected to the take-up roll 18c. The direction of the upward movement in the direction of arrow C, which is the transport direction of the roll paper transport unit 18, and the direction of arrow B, which is the direction of movement of the arm unit 2, are the same.

Next, the recording operation will be described. At the start of recording, the printing unit paper 18b is firmly fixed on the paper fixing unit 15 by the action of the suction pump 17, and the printing unit 1 is armed. 2, an arm 2 is a sheet fixing portion 1
5 is located above. First, the printing unit 1 is the arm unit 2
The upper part makes one reciprocation in the direction of arrow A (left position → right position → left position of the arm unit 2), and ejects ink onto the printing unit paper 18b.
Next, the arm unit 2 descends by a fixed amount in the direction of arrow B and stops, and the printing unit 1 ejects ink back and forth on the arm unit 2 once in the direction of arrow A in the same manner as described above. 2 falls by a fixed amount and stops. This operation is repeated so that the arm 2 intermittently moves from the upper side to the lower side of the sheet fixing portion 15, so that the recording can be performed on the entire surface of the printing portion paper 18b. Next, the motor 19 is rotated, and the recorded printing portion paper 18b on the paper fixing portion 15 is wound by a take-up roll 18c by the number of recording pages, and an unrecorded new printing portion paper 18b is fed from the supply roll 18a. Is set on the sheet fixing portion 15. When the roll paper transport unit 18 is transported, the suction pump 17 is turned off and the printing unit paper 18b is
It is preferable to make it easy to move. Next, the suction pump 17 operates again, and the printing unit paper 18 is placed on the paper fixing unit 15.
b is firmly fixed, and the recording operation for the second page is started.
By repeating this series of operations, the printing unit paper 18
Recording can be continuously performed in a state where b is fixed to the sheet fixing portion 15.

On the other hand, since the base section 8 is installed vertically in the vertical direction, the roll paper transport section 18 is loaded above and below the paper fixing section 15, and the installation area of the entire recording apparatus can be reduced. In addition, since the roll paper transport direction is up and down, stable transport without slack is possible.

In the above-mentioned example, while the printing section paper 18b is fixed on the sheet fixing section 15, the highly rigid printing section 1 and the arm section 2 are moved to perform high-precision recording. If a particularly high recording accuracy is not required, it is also possible to perform recording while moving the printing unit paper 18b. That is, after the printing unit 1 reciprocates once on the arm unit 2 in the direction of arrow A and ejects ink onto the printing unit paper 18b, the printing unit paper 18b is moved in the direction of arrow C while the arm unit 2 is stationary without descending. And the printing unit 1 reciprocates once on the arm unit 2 in the direction of arrow A to eject ink to the printing unit paper 18b. In the case of this method, after printing one page of the sheet fixing portion 15, only one page of the printing portion paper 1 is recorded.
8b is conveyed and connected to the end of the first page, and the number of movements of the printing unit paper 18b is increased, although the number of movements of the printing unit paper 18b is increased as compared with the case where the head of the second page is continuously recorded.
Since the amount of movement in the direction is small and the amount of printing position deviation is correspondingly small, there is an advantage that the seam of the entire recording is less noticeable, which is advantageous for continuous printing of long objects.

In the example shown in FIG. 2, guide rails 9, 1
0, ball screws 11, 20 and ball screw 1 on one side
A coupling 13 and a motor 12 are arranged on one side, and a ball screw 11 and a ball screw 20 are further screwed together by a bevel gear shaft 21.
Is transmitted. In this case, both the ball screw 11 and the ball screw 20 can be rotated by the rotation of the motor 12, and the arm 2 can be moved in the direction of arrow B. Here, in order for both ends of the arm 2 to move in the same direction, the threading directions of the ball screw 11 and the ball screw 20 need to be reversed.

According to the above configuration, the motor 12 is different from that of FIG.
Although the required torque increases, the two ends of the arm 2 are connected to the two ball screws 11 and 20 even when the width of the printing unit paper 18b is wide, that is, when the arm 2 is long in the longitudinal direction.
As a result, not only the amount of horizontal deformation of the arm 2 due to its own weight can be reduced, but also the weight of the arm 2 can be reduced. The recording operation is the same as in the example of FIG.

In the example shown in FIG. 3, the arm 2 shown in FIG.
The guide rails 9 and 10, which are the second linear moving means of the base portion 8, and the ball screw 11, the motor 12,
With the coupling 13 placed horizontally, the roll paper transport unit 18
Is set to be laterally fed.

In this case, since the roll paper transport unit 18 is fed in a horizontal direction, the printing unit paper 18b is apt to slack in the horizontal direction. On the other hand, since the arm unit 2 is placed vertically, the ball screw 11 is located only above the arm unit 2. However, the amount of horizontal deformation of the arm 2 due to its own weight can be reduced, and the weight of the arm 2 can be reduced. The recording operation is the same as in the example of FIG.

In the above description, the embodiment in the case of the roll paper transport section has been described. However, it is needless to say that even if cut paper is used, high-precision recording can be performed as before.

[0022]

As described above, according to the present invention, since the roll paper transport section is provided in the same direction as the moving direction of the arm section which slidably holds the printing section, it does not interfere with the arm section. Not only can the roll paper be conveyed, but also the recording paper can be firmly fixed to the paper fixing portion during recording, so that high-precision recording can be performed continuously even if roll paper is used. Further, by arranging the recording device vertically, it is possible to reduce the installation area of the recording device.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing an example of the present invention.

FIG. 2 is an overall perspective view showing another example of the present invention.

FIG. 3 is an overall perspective view showing another example of the present invention.

[Explanation of symbols]

1 is a printing section, 2 is an arm section, 3, 9, 10 are guide rails, 4, 12, and 19 are motors, 4a is a rotating shaft, 5 is a driving pulley, 6 is a timing belt, 7 is a driven pulley, and 8 is a base. , 11 and 20 are ball screws, 11a is an end, 1
3 is a coupling, 14 is a block, 15 is a paper fixing portion, 15a is a paper suction hole, 16 is a pipe, 17 is a suction pump, 18 is a roll paper transport portion, 18a is a supply roll,
Reference numeral 18b denotes a printing unit paper, 18c denotes a take-up roll, and 21 denotes a bevel gear shaft.

Continuation of front page (72) Inventor Hiroshi Takahagi 1060 Takeda, Hitachinaka-shi, Ibaraki Prefecture Within Hitachi Koki Co., Ltd.

Claims (4)

[Claims] 1. A printing unit having a recording unit, an arm unit holding the printing unit in a slidable manner and having a first linear moving unit, and moving the arm unit in a moving direction of the first linear moving unit. A base portion which is slidably held in a vertical direction and has a second linear moving means, a sheet fixing portion which is opposed to the printing portion at a fixed distance and has a sheet fixing means, A recording apparatus, comprising: a roll paper transport section having transport means for transporting the roll paper in the same direction as the moving direction of the arm section when the roll paper is placed on the attachment section. 2. The apparatus according to claim 1, wherein the second linearly moving means of the base comprises a guide rail provided at both ends of the arm, a ball screw and a motor provided on one side. Item 2. The recording device according to Item 1. 3. The sheet fixing means of the sheet fixing section comprises: a plurality of sheet suction holes provided in the sheet fixing section; a suction pump;
3. The recording apparatus according to claim 1, further comprising a pipe connecting the paper suction hole and the suction pump. 4. A patent wherein the operation direction of the second linear motion means of the base portion is vertical, and the roll paper transport portion is disposed above and below the paper fixing portion in the vertical direction. The recording device according to claim 1.