JPH08217300A - Re-solubly glued band paper feeding mechanism - Google Patents

Abstract

PURPOSE: To reliably prevent the twining of solubly glued band paper around a pressing roller by regulating the twining of the band paper, fed while being put between a driving roller and a pressing roller, around the pressing roller by a center guide projecting piece of a guide plate projecting in the groove of the pressing roller. CONSTITUTION: In a device for feeding a band paper 2 downward between a rotating driving roller 14 and a pressing roller 15, a center guide projecting piece 17a to be inserted into a groove 15a of the pressing roller 15 is formed on a second guide plate 17 out of first and second guide plates 16, 17 for transferring and guiding the band paper 2 while pinching it. The twining of the band paper 2 around the pressing roller 15 is regulated by the center guide projecting piece 17a, and the band paper to be fed downward is reliably fed between both guide plates 16, 17. Both side end guide projecting pieces 16b, 17b are formed on respective guide plates 16, 17, so as to prevent both side ends of the band paper 2 projecting from the side ends of both rollers 14, 15 from being caught.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rewetting adhesive-bonded paper feed mechanism which is provided in a vending machine for stamps and stamps, for example, to generate adhesive force when moisture is applied.

[0002]

2. Description of the Related Art The structure of a vending machine for re-wetting glue, for example, a stamp vending machine in which a large number of continuous stamps are perforated, will be described with reference to FIGS.

In FIG. 5, reference numeral 1 denotes a strip 2 having a large number of stamps 4 continuous in a strip shape through perforations 3 and wound around a core 5 with a paste surface 2a, which is the back surface, inside. The roll paper 1 is held by a holding core 7 mounted on the substrate 6 in a protruding manner so as to rotate freely.

The substrate 6 has a diameter for accommodating the roll paper 1 and a circular guide 8 having an opening 9 at a part of its lower end.
A guide roller 10 located in the open portion 9, three guide pins 11 located outside the circular guide 8, and a guide shaft 12 located outside the lower portion of the circular guide 8 are attached, and 13 is The cover is attached to the holding core 7 with screws or the like.

Below the circular guide 8, a belt feeding mechanism 18 (including a driving roller 14 and a pressing roller 15 for nipping the belt 2 and feeding it downward, and guide plates 16 and 17 arranged to face the belt 2 and facing each other. (See FIG. 6).

A perforation sensor 22 for detecting the perforations 3 of the strip 2 is attached at a position midway between the guide plates 16 and 17, and below the guide plates 16 and 17, a movable blade 20 and a fixed blade are fixed. A cutter 19 including a blade 21 is provided, and a brush 23 for removing static electricity is attached below the cutter 19.

Next, the operation of the stamp vending machine will be described. When the purchaser pays a fee and operates to specify a desired number of sheets, the drive roller 14 rotates and the strip 2 is held between the press roller 15 and the press roller 15. And send it between the guide plates 16 and 17,
When the perforation sensor 22 detects the designated number of perforations 3, the drive roller 14 is stopped by a command from a controller (not shown) and the cutter 19
Is activated to cut the perforated portion 3 and the designated number of stamps 4 drop into the receiving opening.

[0008]

By the way, in the above-mentioned conventional strip feeding mechanism 18, the pressing roller 15 for crimping the paste surface 2a of the strip 2 is provided with the pressing roller 15 in order to prevent the paste surface 2a from adhering. The surface is treated with Teflon.

However, it is not possible to completely prevent the adhesive from absorbing moisture and adhering the adhesive surface 2a to the pressing roller 15 in the summer when the temperature and humidity are high, and therefore FIG.
As shown by the two-dot chain line, there is a problem that the strip 2 is stuck and wound around the pressing roller 15 and is not fed between the guide plates 16 and 17, and the normal sheet feeding is hindered.

Further, both the driving roller 14 and the pressing roller 15 are in pressure contact with the strip 2 over the entire width range of their peripheral surfaces. However, due to the molding dimensional error of both rollers, the mounting dimensional error, etc. It is difficult to bring the entire width of the surface into uniform contact with the strip 2 by pressing force, and the pressing contact force on the strip 2 is likely to be uneven in the entire width of the circumferential surface of both rollers, and the unevenness causes the strip 2 to be sent out. However, there is a problem that not only the normal feeding operation cannot be obtained but also the feeding becomes impossible due to the increase of the meandering, and the band 2 fed by the generated meandering becomes wrinkled and becomes a defective product. .

Therefore, the present invention was devised to solve the above-mentioned problems in the prior art, and a technical problem is to prevent the rewetting adhesively-attached strip from being wound around the pressing roller. The purpose of the present invention is to reliably send out the banded paper with adhesive and to achieve this sending properly and stably.

[0012]

Means for Solving the Problems The means of the present invention for attaining the above-mentioned technical object is to have a pair of drive rollers and a pressing roller which feeds while rotating while sandwiching a strip with re-wetting glue, and both rollers. Having a pair of guide plates arranged opposite each other for guiding the strip fed by, the groove being provided around the central portion of the peripheral surface of the pressing roller in contact with the adhesive surface of the strip, and the guide plate on the pressing roller side. (2) The central guide protrusion located in the groove of the pressing roller is provided at one end of the two guide plates.

In the center of the peripheral surface of the drive roller, a groove having the same groove width as the groove of the press roller and exactly facing the groove of the press roller is provided, and a first guide plate which is a guide plate on the drive roller side is provided. It is effective to provide a central guide protrusion located in the groove of the drive roller at one end.

It is preferable to provide side end guide protrusions parallel to the central guide protrusion of the second guide plate on both side ends of the one end of the second guide plate, in proximity to the side end face of the pressing roller. Similarly, side end guide protrusions parallel to the central guide protrusion of the first guide plate may be provided at both end portions of one end portion of the first guide plate, in proximity to the side end surface of the drive roller. Attached paper feed mechanism.

It is practically effective that the strip has a structure in which a plurality of stamps are continuous through perforations.

[0016]

The strip fed between the rotating driving roller and the pressing roller is completely wrapped around the pressing roller by the central guide protrusion of the second guide plate protruding into the groove of the pressing roller. While being regulated and guided by the central guide projection of the second guide plate, it is always reliably fed between the pair of guide plates.

Since the groove is provided at the center of the peripheral surface of the pressing roller,
The sandwiching of the strip by the drive roller and the press roller is
This is achieved by the peripheral surface portion separated by the groove of the pressing roller, which makes it difficult to generate a difference in strength between the driving roller and the pressing roller with respect to both end portions of the strip, and even a slight difference in strength. Even if there is a difference, the difference is weakened and the difference in strength is absorbed by the bending of the strip, so that the meandering of the fed strip is effectively prevented.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. In the first embodiment, one groove 15a is provided in the peripheral surface of the pressing roller 15 constituting the strip feeding mechanism 18 in the substantially central portion in the axial direction, and one of the second guide plates 17 on the pressing roller 15 side is provided. A central guide protrusion 17a located in the groove 15a is provided at a substantially central portion of the end (upper end in the illustrated embodiment), and both ends of one end of the same second guide plate 17 and both ends of the pressing roller 15 are provided. Proximity, central guide protrusion 17
A pair of side end guide protrusions 17b, 17b are provided substantially parallel to a.

The first guide plate 1 on the drive roller 14 side
A pair of side end guide projections 16b, 16b are also provided in an extended shape at both ends of one end of the drive roller 6 in the vicinity of both ends of the drive roller 14.

FIG. 3 shows a stamp vending machine in which the embodiment of the band feeding mechanism 18 shown in FIGS. 1 and 2 is installed, and the configuration and operation other than the band feeding mechanism 18 are shown in FIG.
Since it is the same as the conventional example shown in, the corresponding parts are denoted by the same reference numerals and the description thereof is omitted.

In this embodiment, the strip 2 which is sandwiched between the rotating driving roller 14 and the pressing roller 15 and is fed downward is provided by the central guide projecting piece 17a protruding into the groove 15a of the pressing roller 15. The winding around the presser roller 15 is completely regulated, so that both guide plates 16 and 1 are always reliably
It is sent to between 7.

When the belt 2 is fed between the guide plates 16 and 17 by the drive roller 14 and the pressing roller 15, the belt 2 is wide and both side ends thereof are the rollers 14 and 17.
Even if it is not possible to completely control the postures of both side ends of the strip 2 by the rollers 14 and 15 while protruding from the side edges of the strip 15, the strip 2 with respect to the strip 2 when the rollers 14 and 15 are nipped. In a state in which the posture regulation state is maintained by the both side end guide projections 16b and 17b, that is, a state in which the strip 2 is substantially flat in the width direction, the strip 2 is attached to both guide plates 16 and
Both rollers 1 of the strip 2 can be fed to
The feeding of the strip 2 between the guide plates 16 and 17 can be smoothly and safely achieved without catching the both side end portions protruding from the side ends of the guide plates 4 and 15.

FIG. 4 shows a second embodiment of the present invention. In this embodiment, the drive roller 14 is also provided with one groove 14a at substantially the center in the axial direction of the peripheral surface thereof. A central guide protrusion 16a located in the groove 14a is provided at one substantially central portion of the first guide plate 16 on the drive roller 14 side, and other configurations are similar to those of the first embodiment.

In the second embodiment, the drive roller 1
Since the groove 14a opposed to the groove 15a of the pressing roller 15 is provided in the roller 4, the contact peripheral surface areas of the rollers 14 and 15 with respect to the strip 2 are completely equal, and as a result, between the strip 2 and the rollers 14 and 15 are provided. Since the generated frictional resistances are also equal, there is no occurrence of deformation such as twisting of the strip 2 due to the difference in frictional resistance, so the strip 2 maintains a proper flat posture and does not meander. Will be sent out.

Further, the central guide protrusion 16a of the first guide plate 16 and the central guide protrusion 17a of the second guide plate 17 do not receive the nipping force from both rollers 14 and 15.
Since they are located opposite to each other with the central portion of the strip sandwiched between them, it exerts an action of regulating the posture of the central portion of the strip 2 which is being delivered by the rollers 14 and 15 to a flat state. The posture of No. 2 is maintained in a more appropriate flat posture.

In the above embodiment, both rollers 1
The case where one groove is provided in the central portion of the peripheral surface of Nos. 4 and 15 is shown, but this groove is not limited to one, and two or three grooves may be provided depending on the case. A central guide protrusion is provided for each groove.

[0027]

Since the present invention has the above-described structure, the following effects can be obtained. The strip with re-wetting glue that is sandwiched between the rotating drive roller and the pressing roller is wrapped around the pressing roller by the center guide protrusion of the guide plate on the pressing roller side that projects into the groove of the pressing roller. Since it is completely prevented and is reliably fed between the pair of guide plates, it is possible to completely prevent the occurrence of an accident that the feed roller cannot be fed due to the sticking winding around the presser roller, and the feed of the belt is always reliable and stable. Can be achieved.

Since the feeding force from both rollers to the strip is made to act at a plurality of locations separated along the width direction of the strip, the feeding force acting from both rollers to the strip is along the width direction of the strip. There is almost no unevenness, and therefore the feeding of the strip can be smoothly and stably achieved without causing meandering.

When the drive rollers are provided with grooves, it is possible to more accurately and reliably achieve equalization in the width direction of the feeding force that acts on the strip from both rollers, so that the strip can be fed out smoothly. It can be good.

When the side end guide protrusions are provided on both guide plates, the action of the side end guide protrusions can favorably achieve the feeding traveling of the wide strip in an appropriate and stable posture. Therefore, the handling such as cutting of the strip can be achieved accurately and appropriately.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is a sectional view of a central portion of the roller of the embodiment shown in FIG.

FIG. 3 is a perspective view showing an internal structure of a stamp vending machine to which the embodiment shown in FIG. 1 is applied.

FIG. 4 is a perspective view showing a second embodiment of the present invention.

FIG. 5 is a perspective view showing an internal structure of a stamp vending machine having a conventional band feeding mechanism.

FIG. 6 is a cross-sectional view of a conventional strip feeding mechanism.

[Explanation of symbols]

1; roll paper 2; strip 2a; glue surface 3; perforations 4; stamp 5; winding core 6; substrate 7; holding core 8; circular guide 9; open part 10; guide roller 11; guide pin 12; guide shaft 13 A cover 14; a drive roller 14a; a groove 15; a pressing roller 15a; a groove 16; a first guide plate 16a; a central guide protrusion 16b; a side end guide protrusion 17; a second guide plate 17a; a central guide protrusion 17b; Edge guide protrusion 18; Band feeding mechanism 19; Cutter 20; Movable blade 21; Fixed blade 22; Perforation sensor 23; Brush

Claims (5)

[Claims] 1. A pair of drive roller (14) and a pressing roller (15) which feeds while revolving a strip (2) with a rewetting glue sandwiched therebetween.
And a pair of guide plates (16) (17) arranged opposite to each other for guiding the strip (2) sent by the rollers (14) and (15), and the adhesive surface of the strip (2) The pressing roller (1
A groove (15a) is provided around the center of the peripheral surface of (5), and the groove is provided at one end of the second guide plate (17) on the side of the pressing roller (15).
A strip feeding mechanism with rewetting glue provided with a central guide protrusion (17a) located in (15a). 2. A groove (14a) having the same groove width as the groove (15a) of the pressing roller (15) and exactly facing the groove (15a) is provided in the center of the peripheral surface of the drive roller (14). Together with the drive roller (14)
The strip feeding mechanism with rewetting glue according to claim 1, wherein a central guide protrusion (16a) located in the groove (14a) is provided at one end of the first guide plate (16) on the side. 3. A side end guide protrusion parallel to the central guide protrusion (17a) near both side ends of one end of the second guide plate (17) and close to the side end face of the pressing roller (15). The strip feeding mechanism with rewetting adhesive according to claim 1, further comprising (17b). 4. A side end guide protrusion parallel to the central guide protrusion (17a) near both side ends of one end of the second guide plate (17) and close to the side end face of the pressing roller (15). (17b) is provided, and both side ends of the one end of the first guide plate (16) are close to the side end face of the drive roller (14) and are parallel to the central guide protrusion (16a). The re-wetting adhesive-attached strip feeding mechanism according to claim 2, wherein the strip (16a) is provided. 5. The strip (2) has a structure in which a plurality of stamps (4) are continuous through perforations (3).
Alternatively, the re-wetting glue-provided belt feeding mechanism according to 3 or 4.