JPH03128847A - Device for sticking lead paper to thin film roll - Google Patents

Abstract

PURPOSE:To automatically join a lead wire to a very thin film by providing a pressure adhesive tape sticking means for supplying a pressure sensitive adhesive tape to an alignment portion of the film end portion of a thin film roll and the end portion of lead paper to join the film and the lead paper. CONSTITUTION:In the course where a thin film roll rolles down a chute, the winding end portion of a film is chucked by a chucking means 15 provided on the upper end portion of the chute to dram out the film wound round the outermost side of the roll. The film is cut off by a cutter 18 to remove the unnecessary first turn. The end portion of lead paper cut to a designated length is alinged with the above cut end portion in such a manner as to collide with each other or overlap, and the film end portion of the thin film roll and the end portion of the lead paper are joined by a pressure adhesive tape using a sticking means 40. Subsequently, the thin film roll is taken up by a take-up mechanism provided on the lower end portion of the chute.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an apparatus for attaching lead paper to a roll of thin film such as a thermal ink film (ribbon) used in thermal transfer printing.

(Prior Art) A thermal transfer printer uses a thermal ink film (hereinafter referred to as a thermal film) as a recording medium.

Thermal film is usually constructed by coating a polyester film with a thickness of about 10 μm with ink made of a mixture of pigment, wax, and softener.The ink is melted at a temperature of about 100°C and transferred to recording paper. I am now able to do it.

This type of thermal film is used in various office automation equipment, such as facsimile printers, and is used in A4 size, 85
It is used as a film with a wide axis so that it can be printed in various sizes.

Thermal film used in such thermal transfer printers for OA equipment is formed into a long strip in order to supply a predetermined amount, and the film is wound into a roll so that it can be continuously supplied.

Because the film is extremely thin, it is prone to scratches, wrinkles, and peeling when it is packaged, transported, and attached to the above-mentioned OA equipment. Likely to happen. In particular, there are scratches on the first roll of thermal film, which is exposed on the outermost surface.
Localized peeling, wrinkles, and peeling of ink are likely to occur.

To prevent this, the outer surface of the rolled thermosensitive film is covered with lead paper.

The lead paper is ordinary thick Western paper, which is adhered to the end of the winding of the heat-sensitive film, and the lead paper is wound around the outside of the heat-sensitive film roll to cover the heat-sensitive film roll.

In addition, the lead paper not only protects the ends of the thermosensitive film, but also serves as a guide to guide the first end to the take-up drum when the film is pulled out from the roll, and as a reinforcement for the ends of the film at this time. It is something that is made up of.

Conventionally, in order to attach lead paper to the drawn-out end of a heat-sensitive film roll, it was done manually for each roll.

With reference to FIG. 7, a method for attaching lead paper to a heat-sensitive film roll will be explained.

In the figure, reference numeral 1 denotes a roll of heat-sensitive film having a width such as A4 size or 85 size, and is wound around a cylindrical core 2.

This is obtained by winding up a predetermined length using an automatic winding device.

As shown in FIG. 7(a), such a heat-sensitive film roll 1 is made by pulling out the first roll of film 3 on the outermost surface, and placing the film wound on the outermost surface onto a C. -Cut at line C and discard. The reason why the film 3 that was good for this outermost area is removed is because scratches, local peeling of ink, wrinkles, peeling, etc. occur in this area, and it is often a defective area. It's for a reason.

Next, as shown in FIG. 7(b), a separately prepared lead paper 4 of a predetermined length is brought and the end of the lead paper 4 is overlapped with the end of the cut film. .

The overlapped parts are pasted together with adhesive tape 5.

As a result, the lead paper 4 is joined to the edge of the film as shown in FIG. 7(C).

Thereafter, as shown in FIG. 7(d), the lead paper 4 is wound around the outermost surface of the heat-sensitive film roll l about two times, and the work is completed.

(Problem to be solved by the invention) In the past, such work was done manually,
In addition to low work efficiency, the above film is extremely thin,
It also has the property of easily adhering to other objects due to static electricity, making it difficult to handle and causing problems such as damaging the film or causing wrinkles during work.

Therefore, an object of the present invention is to automate the work of gluing lead paper to the edge of a thin film such as a heat-sensitive film, thereby improving work efficiency, stabilizing quality, and improving yield. The present invention aims to provide a lead paper pasting device.

(Means for Solving the Problems) In order to achieve the above object, the present invention includes a chute for rolling and lowering a roll of thin film, and a chuck provided at the upper end of the chute for holding down the winding end of the thin film roll. means, a cutter provided in the middle of the chute for cutting the film that is rolled down the chute with the winding end being held down by the chuck means, and is unwound from the thin film roll and spread on the chute surface; a mechanism for supplying lead paper cut to a predetermined length; a stopper provided in the middle of a chute for aligning an end of the supplied lead paper with an end of the cut film of the thin film roll; Adhesive tape applying means is provided in the middle of the chute and supplies adhesive tape to a position where the end of the film of the thin film roll and the end of the lead paper are aligned to join the film and the lead paper; The present invention is characterized in that it includes a winding mechanism provided at the lower end of the roll for rotating the thin film roll and winding up the joined lead paper on the outer peripheral surface of the roll.

(Function) According to the present invention, in the process of the thin film roll rolling down the sudo, the chuck means provided at the upper end of this chute chucks the winding end of the film, so that the film is not wound on the outermost side of the roll. The unnecessary first roll can be removed by unwinding the film and cutting it with a cutter. Then, the end of the lead paper cut to a predetermined length is aligned with this cut end by abutting or overlapping, and the film end of the thin film roll and the end of the lead paper are aligned. The adhesive tape can be automatically joined using the adhesive tape attaching means.

Further, by winding up the thin film roll using a winding mechanism provided at the lower end of the chute, the bonded lead paper can be wound around the outer peripheral surface of the roll, and the outer peripheral surface of the roll can be covered with the lead paper.

(Example) The present invention will be described below based on an example shown in FIGS. 1 to 6.

In the figure, reference numeral 10 denotes a conveyor belt, which sequentially conveys a large number of rolls of heat-sensitive film at predetermined intervals.

The heat-sensitive film roll 1 is similar to that shown in FIG. 7(a), and is fed with the cut end thereof facing upward as shown in FIG. 3.

A rolling chute 11 is connected to the lower end of the conveyor 10.

This chute 11 has a slope with a lower downstream side in the same direction as the transport direction of the transport conveyor IO, and the heat-sensitive film roller rolls and rotates on this slope to descend.

The upper end of the chute 11 is slightly higher than the downstream end of the conveyor 10 to form a step, and a transfer device 12 is provided between the conveyor 10 and the chute 11.

As shown in FIGS. 1 and 2, the transfer device 12 includes a pair of clamping pins 13a and 13b, and these clamping pins 13a and 13b hold the cylindrical winding core 2 of the heat-sensitive film roll 1.
The transport conveyor 1 is held between the ends of the
The heat-sensitive film roll 1 is lifted from 0, transported to the upper end of the chute 11 by the feeding cylinder 5, and then moved to the upper end of the chute 11 by lowering the elevating cylinder 4.

A chuck means 15 is provided at the upstream end of the chute 11 to chuck the winding-up cut end of the heat-sensitive film roll, that is, the waste film 3.

The chuck means 15 of this embodiment has a large number of small suction holes 16 on the chute surface located at the upstream end of the chute 11.
・It is constructed by forming. A vacuum chamber 17 (shown in FIG. 2) connected to a vacuum pump (not shown) is formed on the back side of this chute surface, and the numerous small suction holes 16 communicate with this vacuum chamber 17.

Therefore, these suction holes 16 always suck in outside air, and when the film comes to this surface, the film is sucked and brought into close contact with the chute surface, so that so-called vacuum suction occurs.

The heat-sensitive film roll 1 transferred from the transport conveyor 10 to the chute 11 by the transfer device 12 descends while rolling on the inclined chute surface, and during this time the cut end of the heat-sensitive film roll 1 is sucked into the small hole. 1
6..., and therefore the film wound on the outermost side of the heat-sensitive film roll 1 is brought into close contact with the chute surface, that is, it is vacuum-adsorbed, and as a result, the film wound on the outermost side of the heat-sensitive film roll 1 is The film is rewound and spread out in close contact with the chute surface.

0 The thermosensitive film roll 1 descending while rolling on the chute surface comes into contact with a stopper 50, which will be described later, and stops.

A film cutter 18 is provided in the middle of the chute 11, and this film cutter 18 cuts the film that is sucked by the small suction holes 16 and brought into close contact with the chute surface.

Note that the cut unnecessary film is removed from a discharge port 19 located upstream of the film cutter 18 and opened in the chute surface. A vacuum cup 20 is installed at the back side of the chute 11 at one discharge port, and when the film is cut by the film cutter 18, the vacuum cup 20 sucks the film through the one discharge port. Then, the film is combed or crumpled and drawn into a vacuum cup 20 through one discharge port, and this vacuum cup 20 is operated to be discarded.

On the other hand, above the rolling chute 11, a lead paper supply device 30 is provided.

1 That is, 31 is a lead paper roll, the end of which passes between the feeding roller 32 and the holding roller 33,
It is sent to a drop chute 34. A lead paper cutter 35 is provided in the middle of the sliding chute 34.

The lead paper 4 is supplied by sandwiching the lead paper between the dispensing roller 32 and the holding roller 33 and drawing it out. The number of revolutions of the dispensing roller 32 is counted to measure the dispensing length of the lead paper. The length of the lead paper is
It is preferable that the outer periphery of the heat-sensitive film end 1 is wrapped twice.

When the lead paper 4 is fed out for a predetermined length, the rotation of the feeding roller 32 and the holding roller 33 is stopped, and the lead paper is cut by a lead paper cutter 35.

This produces the lead paper 4 shown in FIG. 7(b).

This lead paper 4 slides down the sliding chute 34 and is sent to the rolling chute 11.

A positioning stopper 36 is provided at a position approximately 50II11 downstream of the film cutter 2 18 of the rolling chute 11, and the lead paper 4 that slides down the slide chute 34 and descends into the chute 11 is provided.
Regulates the position of the tip.

The leading edge of the lead paper 4 whose leading edge position is regulated by the positioning stopper 36 is placed at
They overlap with each other by a dimension g of about l.

A presser means 37 is provided above the chute 11. This presser means 37 is configured to move a presser pad 38 up and down with a cylinder 39, and presses the overlapping portion of the film end on the heat-sensitive film roll 1 side and the leading end of the lead paper 4 from above, and presses these positions. It is designed to stop.

Adhesive tape sticking means 40 is provided adjacent to and downstream of the pressing means 37.

As shown in FIG. 5, the adhesive tape pasting means 40 is capable of continuously feeding out the adhesive tape 5 from an adhesive tape roll 41 with the adhesive surface facing downward; It is designed to be played out. The pull-out belt 42 is provided with a large number of suction holes 43 in the longitudinal direction of the belt, and the adhesive tape 5 is suctioned onto the outer surface of the belt 42 by these suction holes 43 .

The drawer belt 42 is an endless belt,
Although it is run on rolls 44a to 44d, the periphery is covered with a vacuum chamber 45, and only the lower surface is exposed. This vacuum chamber 45 is connected to a vacuum pump (not shown) to reduce the pressure.

Therefore, the suction holes 43 on the lower surface of the pull-out belt 42
... adsorbs the adhesive tape 5 and rolls 44a to 44
When the drawer bell +42 is run by d, the adhesive tape 5 is pulled out from the adhesive tape roll 41. Adhesive tape 5 of a predetermined length, that is, a length corresponding to the width of the film
When it is pulled out, it is cut by a tape cutter 46.

The vacuum chamber 45 is attached to an elevating cylinder 447, and can be moved up and down by this elevating cylinder 47. Then, when the vacuum chamber 45 is lowered, the adhesive tape 5 adsorbed on the pull-out belt 42 on the lower surface is pressed against the overlapping portion of the film end on the heat-sensitive film roll 1 side and the lead paper 4.

In other words, since the adhesive tape 5 adsorbed to the lower surface of the pull-out belt 42 has one dot as the adhesive surface, the boundary between the overlapping portion of the film end on the heat-sensitive film roll 1 side and the end of the lead paper 4 It is pressed along the line, thereby joining the edge of the thermosensitive film and the edge of the lead paper 4.

A stopper 50 is provided at the downstream end of the rolling chute 11, and this stopper 50 is moved up and down by a cylinder 51. When the stopper 50 is lowered, the heat-sensitive film roll 1 rolling down the chute 11 hits it and is stopped. During this stop, the unnecessary film 3 is cut and discarded, and the lead paper 4 is attached.

5. A winding mechanism 55 is provided at the downstream end of the rolling chute 11.

As shown in FIG. 6, the winding mechanism 55 includes a pair of clamp pins 56a and 56b, and these clamp pins 56a and 56b are adapted to clamp the cylindrical winding core 2 of the heat-sensitive film roll 1. . One clamp pin 56a
A gear 57 is attached to the clamp pin 56a156b, and these clamp pins 56a156b are movable in the direction of arrow A along the chute surface of the chute 11 via a transfer means (not shown).

The gear 57 is adapted to mesh with a drive gear 58. The drive gear 58 is driven by a motor 59.

Therefore, when the overlapping portion of the film end on the heat-sensitive film roll 1 side and the end of the lead paper 4 is adhered with the adhesive tape 5, the stopper 50 is raised and the clamp pins 56a, 56b are clamped by the transfer means. The heated film roll 1 is moved. and,
When the gear 57 meshes with the drive gear 58, the motor 59 rotates the heat-sensitive film roll 1, thereby winding up the lead paper 4.

In the apparatus configured as described above, the heat-sensitive film roll 1 placed on the upper end of the rolling film 11 descends while rolling on the inclined chute surface, and during this time, the cut end of the heat-sensitive film roll 1 at the end of winding is removed. is the suction hole 16
..., so that the film 3 wound on the outermost side of the heat-sensitive film roll 1 is brought into close contact with the chute surface and unwound. This unfolded film end 3 is cut into a film cutter 1 installed in the middle of the chute 11.
The cut off unnecessary film 3 is discarded from the discharge port 19.

Therefore, the film wound on the outermost side of the heat-sensitive film roll 1 is automatically cut and removed.

Further, since the lead paper supply device 30 is provided above the chute 11, the lead paper 4 of a predetermined length is automatically supplied.

The position of the leading end of the lead paper 4 is regulated by a positioning stopper 36, and the lead paper 4 is overlapped with the film end portion of the heat-sensitive film roll 1.

Then, this overlapping portion is pressed by the pressing means 37 to prevent movement, and in this state, the adhesive tape applying means 40
Then, they are joined with adhesive tape 5.

Therefore, the pasting of the heat-sensitive film roll 1 and the lead paper 4 is also automatically performed.

Furthermore, when the overlapping portion of the film end on the heat-sensitive film roll 1 side and the end of the lead paper 4 is bonded with adhesive tape 5, it is clamped by clamp pins 56a and 56b in the F-coat second inspection section of the winding mechanism 55. The thermal film roll 1 is moved by the motor 59.
Rotate and wind up the lidding paper 4. Therefore, the lead paper 4 is automatically wound up after being bonded.

According to such a device, everything from cutting the unnecessary film 3 to gluing and winding up the lead paper 4 is performed automatically, so that less manpower is required and work efficiency is improved.

Although the above embodiments have been described using a heat-sensitive film roll as the thin film roll, the present invention is also applicable to cases where the lead paper 4 is bonded to other thin film rolls.

Further, the cut end of the winding end of the heat-sensitive film roll 1,
In other words, chuck means 15 for chucking the waste film 3
As a result, since vacuum suction using the small suction holes 16 is used, the chuckability is good because the extremely thin film is held down on a wide surface, but the present invention is not limited to this, and other mechanical chuck means are used. You can.

Furthermore, the lead paper is not necessarily limited to being made of Western paper, but may be made of a resin sheet.

(Effects of the Invention) As explained above, according to the present invention, it is possible to automate the work of joining lead wires to ultra-thin films, improve work efficiency, and prevent damage to the film and wrinkles. This has advantages such as preventing defects such as the occurrence of defects, stabilizing quality, and improving yield.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a plan view showing a device for pasting lead paper onto a heat-sensitive film roll, Fig. 2 is a side view, Fig. 3 is a perspective view of the chuck means, and Fig. 4 is a perspective view of the lead paper supply mechanism, FIG. 5 is a perspective view of the adhesive tape applying means, FIG. 6 is a perspective view of the lead paper winding mechanism, and FIG.
a) to d) are explanatory diagrams showing the working procedure of pasting a lead paper onto a heat-sensitive film roll. 1...Thermal film roll, 3...Unnecessary film,
4... Lead paper, 5... Adhesive tape, 10... Conveyor, 11... Rolling chute, 12... Transfer mechanism, 15... Chuck means, 16... Small suction Hole, 17... Vacuum chamber, 18...
Film cutter 19...Discharge port, 30...Lead paper supply device, 35...Lead paper cutter 36...
・Stopper, 37... Pressing means, 40... Adhesive tape sticking means, 0 42... Pull-out belt, 43... Suction hole, 45...
...Vacuum chamber 46...Tape force/Ivy 5
0... Stopper, 55... Lead paper winding mechanism,
56a, 56b...clamp pin, 9...motor.

Claims (1)

[Scope of Claims] A chute for rolling and lowering a roll of thin film, a chuck means provided at the upper end of this chute for holding down the winding end of the thin film roll, and a chuck means provided midway along this chute. A cutter that cuts the film that is rolled down the chute with the end of the film being held down by the thin film roll and spread out on the chute surface, and a lead paper that has been cut to a predetermined length is supplied. a stopper provided in the middle of the chute for aligning the end of the supplied lead paper with the cut film end of the thin film roll; an adhesive tape applying means for joining the film and the lead paper by supplying an adhesive tape to a positioning position between an edge of the film and an edge of the lead paper; and an adhesive tape applying means provided at the lower end of the chute for rotating the thin film roll. A device for pasting lead paper onto a thin film roll, comprising: a winding mechanism for winding up the bonded lead paper on the outer peripheral surface of the lever roll.