JPS58546Y2 - Label loading device in printer - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a label mounting device for a printer.

Generally, in a printer, for example, a label printer, a label roll consisting of a backing paper with labels pasted at a constant pitch is supported at the top of the case by a support rod, and the backing paper is moved intermittently along a guide plate installed at an angle at the top of the case. After being printed on the label by a printing machine during transport, the label is peeled off from the backing paper, and then transported to the bottom of the case by a winding roller, and the backing paper is wound up by a winding drum installed at the bottom. taking it.

In order to print and peel off the above-mentioned label easily and smoothly, it is necessary to apply tension to the label and prevent the backing paper from moving when the label is peeled off. , a play roller, and a presser roller are provided so as to be able to come into pressure contact with the guide plate and the take-up roller, respectively.

To install the label, the brake roller and presser roller are released from their pressed state to create a gap between the guide plate and the take-up roller, respectively. After passing through the mount of the label roll,
The tip of the mount is attached and fixed to the take-up drum, and then a brake roller and a presser roller are brought into pressure contact with a guide plate and a take-up roller, and the take-up drum is rotated by the drive of a motor to transport the mount. .

Incidentally, such a printer is required to be small due to its installation location, but when a conventional printer is made smaller, a problem arises in that it becomes difficult to attach a label roll.

SUMMARY OF THE INVENTION In view of these problems, it is an object of the present invention to provide a label roll mounting device that allows printers to be made smaller and that allows label rolls to be easily and easily mounted on the printer.

The configuration of the present invention will be explained below with reference to the drawings.

In Figs. 1 to 3, 1 is a printer case, which has a rectangular opening 2 of a predetermined size on the top surface through which the backing sheet of the label roll A passes, and a rectangular opening 2 on the side thereof, which will be described later. It has a hole 3 through which the label receiving arm passes, and a label outlet 4 on the front surface.

The rear edge of the upper opening 2 of the case 1 is made to protrude toward the obliquely downward front surface inside the case 1, and the first opening 2 is inclined at a predetermined angle.
This first guide plate 5 is formed.
A second guide plate 6 having the same sloped surface is supported adjacent to the tip of the guide plate 6, and the tip thereof is formed into a curved shape so as to face the front surface of the case 1.

Directly below the guide plate 6 are a guide roller 8 and a type drum 7.
A printing machine 9 equipped with the above is supported by appropriate means so as to face the label outlet 4, and the curved tip of the guide plate 6 is exposed from its upper surface.

10 is the upper frame, 11 is the opening 2 and hole 3 of the case 1.
(This is a side frame set up vertically.)

The upper end front corner of this side frame 11 is attached as shown in FIG.
, a first supporting metal fitting 13 having a rectangular shape and having a bent shape that can protrude upward from the front lower edge of the notch 12 on the opening 12 side.
A bent second support fitting 14 that can protrude forward is fixed on the rear edge of the hole 3 side, and a hanging L rod 15 is installed between the tips of both the support fittings 13 and 14. A fulcrum shaft 16, which is provided on the lower surface and has a tip protruding from the third hole, is rotatably mounted.

Reference numeral 17 denotes a U-shaped label receiving arm that has the distal end of the fulcrum shaft 16 fixed to its base end and is rotatably supported around the fulcrum shaft 16; ' is supported in the hole 3 so as to be movable along the hole 3, and
A label winding support rod 18 is provided at the tip of the bent portion 17 that protrudes upward from the case 1 and extends to the side so as to be positioned above the opening 2.
When the support rod 18 is positioned above the fulcrum shaft 16, it becomes possible to support the label roll a on the support rod 18, and the limit frame 19 that restricts downward rotation beyond a predetermined angle is reached. When the label receiving arm 17 makes contact, a portion of the label roll a enters into the opening 2.

A curved brake arm 20 is placed at a predetermined position slightly below the tip of the bent portion 17' of the label receiving arm 17, and is rotatable via a fulcrum shaft 21 extending toward the opening 2 side. The brake arm 2 is supported in a suspended manner so that it can freely move in and out of the case 1 along the side edge of the brake arm 2.
0, a rotatable brake roller 22 and a guide roller 23 are supported at predetermined positions at the lower end and slightly above this, projecting laterally so as to be positioned on the guide plate 5.6,
In addition, the plate roller 22 is supported so as to be able to come into pressure contact with the upper surface of the guide plate 6.

In order for the brake roller 22 to come into pressure contact with the guide plate 6 when the label receiving arm 17 is positioned downward with its rotation restricted by the limit frame 19, the lower front surface of the lower end of the label receiving arm 17 is pressed. Protruding portion 24
This protruding portion 24 is positioned at the same height as the upper end portion above the fulcrum shaft 21 of the brake arm 20 and shifted in the front-rear direction, so that the stop rods 25 and 26 are opposed to the respective portions. A plurality of springs 27 having a tensile force are stretched between these stop rods 25 and 26.

In addition, in order to prevent the brake arm 20 from rotating too much about the fulcrum shaft 21 due to the tensile force of the spring 27, a stop member 28 is fixed at a predetermined position of the label receiving arm 1T. Make sure that the stop rod 26 comes into contact with it.

Directly below the printing machine, a mounting member 29 is supported so as to be tilted in the front-rear direction.

This mounting member 29 is provided with a peeling plate 30 having a flat top surface and an acute-angled tip edge on the upper surface of its front end so as to be located between the label outlet 4 and the type drum 7. A guide roller 31 is provided on the back side of the roller 30, and a fourth support fitting 32 is further fixed on the lower surface of the rear end.

This fourth support fitting 32 has arm portions 33 on both sides that are inclined forward in the same direction as the mounting member 29,
A presser roller 35 divided at the center is rotatably attached to a support shaft 34 installed between the tips of the arm portions 33, and a tension rod 3 is attached to the central portion of the support shaft 34 between the presser rollers 35.
6 is fixed, and the T-shaped portion 36' thereof is protruded rearward through the hole 37 of the fourth support metal fitting 32 in the same inclination direction as the fourth support metal fitting 32 to support the tension rod 36. Furthermore, a spring 38 having a biasing force is interposed between the fourth support fitting 32 and the support shaft 34 by being wound around a tension rod 36.

Reference numeral 39 denotes an open shaft rotatably mounted between the side frame 11 and an upright frame 40, and has protrusions 41 on both sides of the open shaft.
', one end is made to protrude from the side frame 11 toward the hole 3 side, and the base end of the release lever 42 is fixed to the protruding portion.

The rotational movement of the label receiving arm 1T is transmitted to the release lever 42 by means of a link mechanism 43.

That is, a bent third support fitting 44 protruding forward is fixed near the lower edge rear portion of the notch 12 of the side frame 11 on the side of the opening 2, and the side frame 11 and the third
A pivot shaft 45 that can pass through the support fittings 44 is rotatably mounted thereon, and at the end of the pivot shaft 45 on the opening 2 side, there is a base end of a lever 470 having a long hole 46 at the tip. The lever 47 is fixed together and tilted at a predetermined angle in the front-rear direction.
At the same time, the tip of the L rod 15, which is suspended from the lower surface of the fulcrum shaft 16, is slidably inserted into the elongated hole 46,
Further, one end of a lever 48 is integrally fixed to the end of the rotation shaft 45 on the hole 3 side, and is supported with an inclination angle slightly larger than the inclination angle of the lever 47.

Both ends of the connecting rod 49 are rotatably attached to the other end of the lever 48 and the tip of the release lever 42, respectively, so that the rotational movement of the label receiving arm 17 is transmitted to the release lever 42.

50 is a take-up roller that comes into pressure contact with the presser roller 35; 51 is a take-up drum;
0, and a belt 54 is mounted between pulleys 52 and 53.

55 is a motor that drives the winding drum 51 intermittently;
56 is a microswitch that turns on and off the power of the printer by rotating the release lever 420.

Therefore, when installing label roll a consisting of a backing paper with labels C pasted at a constant pitch on the printer, limit rod 1
As shown in FIG. 3, the label receiving arm 17, which is positioned such that its downward rotation is restricted by the lever 9, is rotated counterclockwise about the fulcrum shaft 16.

Then, the brake roller 22 moves upward together with the brake arm 20 along with the label receiving arm 17, and the pressure contact with the guide plate 6 is released, creating a gap between them, and at the same time, the brake roller 22 moves upward along with the label receiving arm 17. L hanging from the bottom of
The rod 15 is rotated.

At this time, the brake arm 20 tries to rotate counterclockwise around the fulcrum shaft 21 due to the tensile force of the spring 27, but the stop rod 26 comes into contact with the stop member 28, and the rotation is restricted. Ru.

When the lever 47 is rotated counterclockwise while its tip slides along the long hole 46 of the lever 47, the lever 47 is rotated clockwise around the fulcrum shaft 45 by a predetermined angle. A lever 48, which is integrally fixed via a fulcrum shaft 45, rotates around this at the same angle as the rotation angle of the lever 47, and stops at a position slightly beyond its top dead center.

The lever 480 rotates via the connecting rod 49 to release the lever 4.
2, the opening shaft 39, which is fixed integrally with the opening lever 42, is rotated clockwise.

Then, the tension rod 36 that engages with the protrusion 41 of the release shaft 39 is moved rearward against the urging force of the spring 38, releasing the presser roller 35 that was in pressure contact with the take-up roller 50 from the pressure state. , creating a gap between the two.

In addition, since the lever 48 has stopped beyond the top dead center, the label receiving arm 1T stops at the upper position without rotating clockwise, and the micro switch 56 is pushed by the release lever 42 and turned ON. , turn off the printer.

Thereafter, the label roll a is supported by the support rod 18 of the label receiving arm 17.

Then, the mount sheet is fed into the case 1 along the guide plates 5 and 6 that have a gap between them and the brake roller 22,
After passing through the printing machine 9, it passes over a peeling plate 30 and is sent downward at an acute angle.
After passing through the gap, it is attached and fixed to the winding drum 51.

Then, the label receiving arm 17 is rotated clockwise about the fulcrum shaft 45 until it comes into contact with the limit rod 19.

Then, as the brake roller 22 rotates 70 degrees, the brake roller 22 moves downward, and the brake roller 22 is brought into pressure contact with the guide plate 6 by the tensile force of the spring 27.

At the same time, the rotation of the label receiving arm 17 causes the L bar 15 and the levers 47 and 48 to rotate in the opposite direction to the above case, and the opening shaft 39 integrated with the opening lever 42 is moved counterclockwise via the connecting rod 49. Rotate it.

Then, the tension rod 36 that engages with the protrusion 41 of the release shaft 39 moves forward due to the urging force of the spring 38, and presses the presser roller 35 against the take-up roller 50.

At that time, the microswitch 56 is turned off and the printer is turned on.

Thereafter, the motor 55 is driven to intermittently feed the mount sheet, and after printing the label a on the printing machine 9, the peeling plate 30
Peel it off and take it out from the label outlet 4.

As described above, the present invention includes a guide plate disposed between the rear edge of the upper opening of the case and the printing machine inside the case, and a base end rotatably supported on a side frame. A U-shaped label receiving arm having a bent portion located inside the case from the top opening of the case and having a label winding support rod at the other end outside the case, and a U-shaped label receiving arm that is rotatable to the side of the label receiving arm. A brake arm that is pivotally supported and has a brake roller at its tip that applies pressure in the direction of pressure contact with the guide plate, and the lower part of the peeling plate between the label outlet of the case and the printing machine, and A presser roller is pressed by a take-up roller that is intermittently driven together with a take-up drum disposed at the bottom, and a presser roller is fixed to the spindle of the presser roller and applies an applied force in the direction of pressing the presser roller to the take-up roller. a pull rod supported on a fourth support fitting for action; a rotatable opening shaft having a portion for engaging the pull rod; transmitting the rotational movement of the label receiving arm to the opening shaft; Since it is constructed with a link mechanism that retracts the tension bar against the applied force, gaps can be created between the brake roller and the guide plate and between the presser roller and the take-up roller by simply lifting the label receiving arm upward. At the same time, the label roll can be easily supported by the label receiving arm.

Therefore, the label winding and mounting work is extremely easy and simple, and the printer can be downsized.

[Brief explanation of the drawing]

FIG. 1 is an explanatory front view of the label roll mounting device according to the present invention, FIG. 2 is an explanatory side view thereof, and FIG. 3 is an explanatory side view when the label receiving arm is in operation. 5.6... Guide plate, 11... Side frame 17... Label receiving arm, 20...
... Brake arm, 22 ... Brake roller, 32 ... Supporting metal fittings, 35 ... Presser roller, 36 ... Tension bar, 39 ... ...Open shaft, 41...Protrusion, 43...Link mechanism.

Claims (1)

[Scope of utility model registration request] A guide plate is installed between the rear edge of the top opening of the case and the printing machine inside the case, and the base end is rotatably supported on the side frame, and the bent part is connected to the top opening of the case. a U-shaped label receiving arm located inside the case and having a label winding support rod at the other end outside the case; and a guide plate rotatably supported on the measuring surface of the label receiving arm. A brake arm with a brake roller at its tip that applies pressure in the direction of pressure contact with the winder, and a winder disposed below the peeling plate between the label outlet of the case and the printing machine and at the bottom of the case. A presser roller is pressed against a take-up roller that is intermittently driven together with the drum, and a fourth presser roller is fixedly attached to the spindle of the presser roller and applies an urging force to the presser roller in the direction of pressing the take-up roller. a tension bar supported by a support bracket;
a rotatable open shaft having a portion that engages the drawbar;
A label mounting device for a printer comprising a link mechanism that transmits the rotational movement of the label receiving arm to the opening shaft and causes the tension bar to retreat against the applied force.