JPH111038A - Roll paper transport mechanism - Google Patents

Abstract

(57) [Summary] The present invention relates to a roll paper transport mechanism, and an object of the present invention is to facilitate handling of roll paper after printing. SOLUTION: The handling of roll paper after printing is facilitated by providing a transport roll for nipping and transporting roll paper, a cutting mechanism for cutting roll paper, and a stacker for stacking roll paper after cutting. Was made possible.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roll paper transport mechanism of a recording apparatus capable of directly moving a printing section in two vertical 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 vertical 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 roll paper transport mechanism of a recording apparatus capable of linearly moving a printing portion in two vertical directions, a continuous roll paper feeding mechanism is constituted by only a roll paper supply side and a winding side. There is no problem in the case of long objects to be printed, but in the case of printing other than long objects (for example, page printing), the paper must be cut after printing, and the leading end of the roll paper must be fixed to the winding side. However, there is a problem that handling of the roll paper after printing is troublesome.

An object of the present invention is to provide a roll paper transport mechanism that facilitates handling of roll paper after printing.

[0005]

The object of the present invention is to provide a printing unit having a recording unit, an arm unit holding the printing unit in a slidable manner and having a first linear motion unit, and connecting the arm unit to the first unit. A base portion having a second linear moving means while holding the second linear moving means so as to be slidable in a direction perpendicular to the moving direction of the one linear moving means,
A sheet fixing section facing the printing section at a fixed distance and having a sheet fixing section, and a conveying section for conveying the roll paper on the sheet fixing section in the same direction as the moving direction of the arm section; This is achieved by providing a recording device comprising a roll paper transport unit having a means and a cutting mechanism for cutting roll paper and a stacker for stacking cut roll paper in the roll transport unit.

It is preferable that the roll paper cutting mechanism is installed downstream of the roll paper transport section in the paper traveling direction.

[0007] The above-mentioned problem is solved by providing a braking member on the roll paper supply side of the roll paper transport unit to apply tension to the roll paper to facilitate cutting.

[0008]

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, reference numeral 1 denotes a printing unit using an inkjet system as a recording means, and 2 denotes a printing unit 1 with 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 moving means of which is 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 the end 11 a of the ball screw 11 via a coupling 13, and the block 14 is screwed with the ball screw 11 and is movable on the axis of the ball screw 11.
Are 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 sheet 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 simplicity of explanation, only the connection between the three sheet suction holes 15a and the pipe 16 is shown in FIG. 1, but the same applies to other sheet suction holes.

Reference numeral 18 denotes a roll paper transport unit, which supplies a roll paper on a supply roll 18a, a printing paper 18b, a transport roll 18c, a tension coil spring 18d, a motor 19 for driving the transport roll 18c, and a supply roll 18a. An electromagnetic brake 22 for braking.

Reference numeral 20 denotes a cutting mechanism for cutting roll paper, comprising a cutter 20a, a solenoid 20b for driving the cutter, and a stacker 21 for stacking the cut roll paper. The printing unit paper 18b is sandwiched by the transport roll 18c from the supply roll 18a over the paper fastening unit 15, and is transported in the direction of arrow C by the motor 19 connected to the transport roll 18c. At this time, the supply side roll 18a is braked by the electromagnetic brake 22,
The printing unit paper 18b is wound by the transport roll 18c, tension is applied to the printing unit paper 18b, and the printing unit
Assists in the fixability of Note that the electromagnetic brake may be either a control in which the brake is always applied or a control in which the brake is applied only during printing. Further, the direction of arrow C which is the transport direction of the roll paper transport unit 18 and the arm unit 2
Is the same direction as the direction of the upward movement in the direction of arrow B, which is the direction of movement of.

Next, the recording operation will be described. At the start of recording, the printing section paper 18b is firmly fixed on the sheet fixing section 15 by the operation of the suction pump 17, and the printing section 1 is armed. 2, the arm 2 is located above the sheet fixing portion 15. First, the printing unit 1 makes one reciprocation on the arm unit 2 in the direction of arrow A (left position → right position → left position of the arm unit 2), and ejects ink to 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 section 15, so that the recording can be performed on the entire surface of the printing section paper 18b. Next, the motor 19 rotates, and the paper fixing portion 15 is rotated.
The printed recording section paper 18b on which the recording has been performed is conveyed by a conveying roll 18c by the number of recording pages, and a new unrecorded printing section paper 18b is set on the sheet fixing section 15 from the supply-side roll 18a. When the roll paper transport unit 18 transports the paper, the suction pump 17
It is preferable that the printing portion paper 18b be easily moved with respect to the paper fixing portion 15. Next, the roll paper cutting mechanism 20 includes a cutter 20a and a solenoid 2 that drives the cutter 20a.
The roll paper is cut by the roll paper cutting mechanism 20 and guided to the stacker 21 by its own weight.

In the case of printing the second and subsequent pages, the printing section paper 18b
Is set on the paper fixing portion 15, and the leading end of the paper is held between the transport roll 18c and the tension coil spring 18d. Therefore, work such as fixing the leading end of the paper to the winding side after the roll paper has been cut does not occur, the next page printing operation can be performed automatically, and handling of the roll paper after printing is facilitated.

[0016]

As described above, according to the present invention, since a transport roll for sandwiching and transporting roll paper, a cutting mechanism for cutting roll paper, and a stacker for stacking roll paper after cutting are provided, printing is performed. This makes it easier to handle the roll paper later.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing an example of a paper transport mechanism 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,
18b is a printing section paper, 18c is a transport roll, 18d is a tension coil spring, 20 is a cutting mechanism, 20a is a cutter,
20b is a solenoid, 21 is a stacker, and 22 is an electromagnetic brake.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hiroshi Shoji 1060 Takeda, Hitachinaka-shi, Ibaraki Prefecture Within Hitachi Koki Co., Ltd.

Claims (3)

[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 including a roll paper transport unit having transport means for transporting the roll paper in the same direction as the moving direction of the arm unit when the roll paper is disposed on the receiving unit; and cutting the roll paper into the roll transport unit. A roll paper transport mechanism comprising a cutting mechanism and a stacker for stacking cut roll paper. 2. The roll paper transport mechanism according to claim 1, wherein the roll paper cutting mechanism is provided downstream of the roll paper transport section in the paper traveling direction. 3. The roll paper transport mechanism according to claim 1, wherein a braking member is provided on a roll paper supply side of said roll paper transport section.