FR2615821A1 - DEVICE FOR HUMIDIFYING THE PRECARILY ENCULLETED LABELS - Google Patents

Abstract

The invention relates to a device making it possible to humidify paper, previously glued, by regular translation of the strip of paper, under the action of two drive rollers 9 and 15 motorized. The glued lower face is in contact with a sheet of wires 2, partially bathed in water, maintained at a constant level in a tank 5b and in the box 1.

Description

The present invention relates to a device for moistening réeuliè

  deliver the paper, or any flexible support, previously glued or erased of the trade, used for the franking of letters, packets and parcels,

for packaging and labeling.

  This operation is traditionally performed with a sponge, which

  do not always distribute the water regularly on the pasted part, in

  glue in places, or wet rollers that load

temperate glue.

  The device according to the invention makes it possible to remedy these drawbacks.

IO nients.

  Figure I shows, in section, the device according to the invention.

  FIG. 2 represents, in section, a variant making it possible to avoid

  midification of the dorsal surface of the paper, thanks to the recess (24) in

the support (22 B) of the paper.

  The device represented in FIG. 1 comprises a housing (I) which

  closing a sheet of son (2) assembled at the base in a frame (3) and constituting an inclined brush whose lower part is immersed in the water

  or other solvent required by the type of glue.

  The liquid level is kept constant by the float (5) acting

  on the valve (4) whose rod carries a screw thread screwing into the

float (5).

  The supply of the tank (5b) is carried out by the tank (6)

closed by the stopper (7).

  Two drive rollers (9 and 15) of the paper (11) are in contact, one (15) with the back of the paper, the other (9) with the glued portion, but

still dry.

  The contact of the glued surface with the second end of the wires of the inclined brush (2). wetted by capillarity, only after

  the passage between the rollers (9 and 15), in the direction of the arrow F 1.

2 6 1 5 8 2 1

  These can not be loaded with glue, since it is still skche

  when in contact with the drive roller (9).

  The pressure of the rollers on the paper is given by a device

  elastic member which may consist simply of a spring (8)

  vote the axis of the roller (15) and the slide (12) around the pivot (10)

fixed in the flanges (17).

  This elastic device allows a correct drive of the paper

  despite possible variations in thickness.

  A feed slide (12) allows guidance, by the faces and edges of the glued paper, to the training rollers

(9 and 15).

  At no time is the diluted adhesive in contact with another

  of the device, that the wet brush (2), which avoids gluing

  inconvenient and fouling of the device.

  The speed of movement of the paper, as well as the height of the water, the base of the brush, the length of the wires and their diameter, allow

  to vary the amount of water deposited on the glue, according to the neces-

  of the various previously glued papers marketed.

  The housing (1) containing the humidification device, the tank (5b), constant level, can be made of different materials resistant to oxidation: light alloys, plastics, alloys

  zinc, possibly varnished, allowing their industrialization by

  lage, injection, extrusion, stamping, machining.

  The rotation of the driving roller (15) can be controlled by a

  crank or by an electric motor (18) with reducer (20 and 21).

  In the latter case, the starting of the engine (18) can be controlled

  by a contact (16) with momentary or permanent action, actuated by the operation

  or by introducing the paper (11) to be moistened along arrow F and acting on a light-emitting photocell (14).

permanence by a transmitter (13).

  The introduction of the paper (11) into the slide (12) interrupts the light beam, acting on an electronic circuit, which controls the

  motor (18), supplied with low voltage.

  A timer is activated when the second end

  paper leaves the light beam: the motor continues to rotate

  that the timer cuts off power.

  A sensitive contact, actuated by the passage of paper in the slide

  (12) can replace the photocell (14) and its transmitter

  (13), acting on the delay.

  The manual control, on a simplified model, without gear motor, allows to rotate the roller (15) by a crank located on the axis (19) pivoting in the flanges (17), without limitation of the length of the paper. A lever operating sector-toothed and pinion placed on the axis (19), with freewheel mechanism, allowing the return of the lever by spring, without reversing the direction of rotation of the rollers, can also be used. A lever may also drive by rod, a rack actuating a pinion with free wheel, placed on the axis (19) and producing

  the same effects as the toothed sector.

  All these elements are maintained and protected by the housing (23).

  The length of the paper glued (or gummed) and moistened, may be very large, since the brush is always supplied with liquid by

  capillarity, the base of the brush permanently bathed in the liquid

  the level of which is kept constant, thereby allowing

regular cation of the glue.

4 '

Claims (10)

  1) Device for moistening a paper or flexible support beforehand   glued or gummed, characterized in that it comprises a housing (1) containing a capillary layer (2) whose lower end bathes   in the liquid needed to dilute the glue and the other end   It moistens the underside of the paper (11) in translation.   2) Device according to claim 1, characterized in that it com-   carries a constant level tank (5b) intended to regulate the quantity   the liquid deposited on the adhesive by the capillary na-pe.   3) Device according to claims 1 and 2, characterized in that   has a supply tank (6) in connection with the level tank   constant (5b), allowing continuous operation.   4) Device according to the preceding claims, characterized in that   the constant level tank (5b) comprises, in addition, a setting (4) of the   level because of different sizing encountered in the trade.   5) Device according to any one of the preceding claims   characterized in that it comprises drive rollers (9 and 15) to   manual or motorized control, located before the humidification device   avoiding the gluing of the rollers.   6) Device according to the preceding claims, characterized in that   it comprises a recess (24) intended to trap the humidification of the dorsal surface of the paper.   7) Device according to the preceding claims, characterized in that   it allows to moisten long lengths of glued paper.   8) Device according to the preceding claims, characterized in that   it comprises an elastic system (8) for automatically compensating   the thickness variations of the glued papers, ensuring regular training.   9) Device according to any one of the preceding claims,   characterized in that it comprises a setting in motion triggered by   introducing (F) the paper (11) to be moistened and automatically turning it off; only by delay.   101 Device according to the preceding claims, which can function-   manually, or by geared motor (20-21), comprising an engine electric (18) low voltage.   11) Humidification device according to any one of the claims   previous generations, characterized in that it is incorporated or added to   machines for printing or distributing address labels, labeling   stamps or postage stamps previously affixed or   gummed, or to machines for packaging and packaging.