JP5796807B2 - Laminator double feed processing system - Google Patents

Description

  The present invention relates to a laminator for continuously coating a resin film sheet on the surface of a sheet-fed printing paper.

A conventional laminator feeds sheet-fed printing paper one by one with its edges overlapped, and after continuously covering the resin film sheets, separates the overlapping edge resin film sheets, It was taken over to downstream processes, such as cutting and folding, after returning to.
However, recently, as seen in “Information Communication Body Manufacturing Method” of Japanese Patent Application Laid-Open No. 2010-12761, etc., sheet-fed printing paper is fed at intervals, and a resin film sheet fed from a roll is continuously fed. As a result, it has become possible to see what is discharged into a downstream process without cutting the sheet-fed printing paper in a long state.

JP 2010-12761 A

According to the manufacturing method of the information communication body, when the printing paper is set, the information communication body is finished to the final form by a series of flows. That is, since the sheet-fed printing paper is continuously covered with the resin film sheet, the entire flow becomes a continuous state, so that continuous processing is possible and it is very convenient. However accidentally sheet if fed printing paper is fed more than two (double feed) to verify that part, because there is unfortunately no removal, if occurs trouble of jamming or the like during manufacture and something like that is generated It is necessary to suspend work and take time to return.
As described above, the present invention causes trouble when a plurality of sheets of printing paper are mistakenly fed in a laminator or the like that covers the sheets of printing paper in a continuous state and discharges them to a downstream process. It is intended to provide a processing system that does not have any.

In order to achieve the above object, the laminator double feed processing system of the present invention includes a feeding system composed of suction pads and the like, a nip roller, and a front and / or rear end of sheet printing paper fed out one by one at equal intervals. First sensor to read, at least a pair of heat rollers for coating the resin film sheet on the front and / or back of the sheet-fed printing paper, a second sensor for measuring the thickness of the sheet-fed printing paper passing, the sheet that has been coated A laminator multi-feed processing system configured in the order of a nip roller that pulls the leaf printing paper and discharges it downstream, and when the second sensor detects the thickness of the sheet printing paper passing through a plurality of overlapping sheets, towing the covering sheet-fed printing paper was completed not characterized by stopping the downstream process from the nip roller to discharge downstream while decelerating the speed of the laminator .

For each of the sensors, a transmissive photoelectric sensor can be suitably used on the upstream side of the heat roller , and on the downstream side of the heat roller , the thickness gap of the printing paper that passes by pressing the detection roller against the backup roller. A contact-type sensor or the like that senses can be suitably used, but other methods may be employed.

As the sheet printing paper, known types of paper such as high-quality paper, matte coated paper, gloss coated paper, and synthetic paper can be used. Further, the thickness may be appropriately selected according to the purpose.

  As the paper feeding means, a known method such as a means using a feed roll or a method of sucking and feeding by a suction pad can be adopted.

As the resin film sheet to be coated on the front and back surfaces of the sheet printing paper, for example, a thermal laminate type film in which a known heat-sensitive adhesive is previously formed on OPP can be preferably used, but a dry laminate type may also be used. .

The heat roller that covers the front and back surfaces of the sheet-fed printing paper with a resin film sheet has at least a pair of configurations. For example, the upper roller is a metal roller incorporating a heating means, and the lower side is rubber to receive the pressure of the upper roller You may comprise with the backup roller formed by. Also, the addition to the configurable, may be constituted by a heat roller incorporating heating means in the interior of the roller to form a rubber surface for example vertically with.

The second sensor disposed on the downstream side of the heat roller is disposed between the heat roller and the nip roller that pulls the sheet-fed printing paper that has been coated by the heat roller and discharges it downstream. In addition, although a slitter, a creasing apparatus, etc. are arrange | positioned in this position elsewhere, you may arrange | position before and after these other apparatuses, and may arrange | position in the same line.

The sheet- fed printing paper continuously coated with the resin film sheet discharged from the nip roller described above may be sent to a downstream processing process as it is, or wound up by a winder or the like and supplied to a different processing system. I do not care.

When the second sensor senses double feeding in which a plurality of sheet-fed printing papers are overlapped and fed out , for example, a warning sound is generated and an instruction for low-speed rotation is given to the drive system motor. Working operator recognizes the overlapped feeding operation change of the alarm sound and the system, and connect the normal product and a preceding subsequent normal products to the exclusion of defective products of the double feed portion to return to normal work. Since the return work can be performed while flowing at low speed, time and mental allowance can be created, and the return work can be performed accurately alone without interrupting the work.

It is a principal part schematic diagram explaining the operation | movement of the system to which this invention is applied clearly. It is a partial expanded sectional view of the resin film sheet used for covering of printing paper. (A) And (B) is a principal part schematic diagram explaining the principle of the thickness detection apparatus X. FIG. (A) And (B) is a principal part schematic diagram explaining the principle of the 2 sheet insertion processing system of the laminator of this invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
First, the operation of a laminator to which the present invention is applied will be described.
As shown in FIG. 1, the sheet- fed printing paper S to be coated with the resin film sheet F is stacked on the most upstream side of the process at the left end in the drawing. Then, for example, by a feeding system composed of the suction pads 1, they are sucked one by one from the uppermost surface at equal intervals and are fed downstream in the right direction. Then the fed-out sheet-fed printing sheet S when a nip roller 2a, is held in 2b, a heat roller 4a which at least a pair of further downstream through the photoelectric sensor 3 to be described later and sent to 4b. In the heat rollers 4a and 4b, the resin film sheet F fed out from the roll waiting on the upper side and the planned coating surface of the sheet-fed printing paper S are aligned, and both are strengthened by performing heating and pressure treatment. Glue.

  The resin film sheet F corresponds to a thermal laminating method in which a known heat-sensitive adhesive layer 11 is formed on one surface of a base material 10 as shown in FIG. Surface treatment such as oxidation treatment such as corona discharge or plasma treatment may be applied according to the purpose of use. In addition to the above-described thermal laminating method, a resin film sheet corresponding to the dry laminating method can also be used. In that case, what is necessary is just to add a drying apparatus to the arbitrary locations of the passage line which reaches the heat rollers 4a and 4b.

After the sheet-fed printing paper S coated with the resin film sheet F is discharged from the heat rollers 4a and 4b, a thickness detection device X comprising a combination of a contact sensor 5a and a backup roller 5b arranged on the right side is provided. Then, it is pulled by the nip rollers 6a and 6b and sent to the right machining step. As shown in FIG. 3A, the thickness detection device X is composed of a sensor body 5a and a backup roller 5b. As shown in FIG. 3B, the thickness of the printing paper S passing between the two is shown. Is read from the push-back amount of the roller protruding from the backup roller 5b and the thickness sensor body 5a, and if the push-back amount increases beyond the normal setting range (thickness of one sheet of printing paper), double feed is confirmed and a warning is issued. It is something that gives me.

  Next, the specific contents of the laminator two-sheet insertion processing system of the present invention will be described.
  As shown in FIG. 4 (A), from the left side in the initial diagram.Single waferThe printing paper S3 is sent to the nip rollers 2a and 2b by the suction pad 1 and is on standby. And precedingSingle waferAt the same time as the sensor 3 reads the passage of the trailing edge of the printing paper S2, the timer works, justSingle waferWhen the trailing edge of the printing paper S2 reaches the contact point of the heat rollers 4a and 4b, the nip rollers 2a and 2b are followed by Single waferA command to send out the printing paper S3 is transmitted to the drive system. Preceding by such electrical controlSingle waferPrinting paper S1 and subsequentSingle waferThe intervals of the printing paper S2 are kept uniform.

Each of the sheet-fed printing papers S1, S2 and S3 conveyed as described above is aligned on the planned coating surface by the resin film sheet F and the heat rollers 4a and 4b, which are fed from the roll waiting on the upper side, and continuously peeled off. Laminated. Therefore, each sheet-fed printing paper S after the heat rollers 4a and 4b becomes a continuous state by the resin film sheet F and is sent to a downstream process.

In such a flow, for example, as shown in FIG. 4B, when the sheet-fed printing paper S4 sent out by mistake passes through the heat rollers 4a and 4b, the thickness detection device X on the downstream side overlaps it. The feed is detected, and at the same time, a command to reduce the speed of the pair of heat rollers 4a and 4b and the nip rollers 6a and 6b is transmitted to the drive system and the process downstream from the nip rollers 6a and 6b is stopped. Therefore, the operator has time to spare, and the sheet-fed printing paper S4, which is calm and accurately overlapped, is cut and removed at an appropriate position, and then the subsequent sheet-fed printing paper sent out at a low speed. S5 can be connected to the preceding sheet-fed printing paper S3 at an appropriate location.

Since the return is sheetfed paper S 5 even during the work in accordance with the timing of passing the heat roller 4a, the 4b, subsequent print sheet S 6 by a timer count of the photoelectric sensor 3 is automatically fed, the operator hands It is possible to start the return work alone with ease without being bothered. Then, after the return is completed, the normal work speed can be restored.

In addition, this invention is not restricted to the said Example.
For example, the resin film sheet roll may be disposed below as shown by a dotted line in FIG. 1 so that the front and back surfaces of the sheet-fed printing paper S are simultaneously covered.
Further, it may be read front not only the rear end of the first sensor 3 sheetfed paper has passed through the S.
Further, after passing through the first sensor 3, it is sufficient to feed the subsequent sheet after an arbitrary time has passed by a timer, clock pulse generation, or the like. As another means, a pulse transmitter such as a rotary encoder is provided on an arbitrary drive system shaft. Etc. may be attached to count pulses and send them out.
Furthermore, other known means may be used for the thickness detection device.

S, S1, S2, S3, S4, S5 , S6 Sheet-fed printing paper F Resin film sheet X Thickness detection device 1 Suction pad 2a, 2b, 6a, 6b Nip roller 3 Photoelectric sensor 4a, 4b Heat roller 5a Contact sensor 5b Backup roller 10 Base material 11 Heat sensitive adhesive layer

Claims (1)

A feeding system consisting of suction pads, nip rollers, a first sensor that reads the front and / or rear edge of a sheet printed paper that is fed one by one at regular intervals, and a resin film sheet on the front and / or back surface of the sheet printed paper A laminator configured in the order of at least a pair of heat rollers for coating the sheet, a second sensor for measuring the thickness of the sheet-fed printing paper that passes through, and a nip roller for pulling the sheet-fed printing sheet that has been coated and discharging it downstream. And when the second sensor detects the thickness of the sheet printing paper passing through the plurality of sheets, the laminator speed is reduced and the coated sheet is pulled. The laminator double feed processing system is characterized in that the downstream process is stopped from the nip roller discharged downstream .

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