JP2011121302A - Adhesive coating method and adhesive coater - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simply manufacture a wireless bound book in which adhesive strength fully maintained. <P>SOLUTION: The coating method of an adhesive 6 includes: process A which clamps papers 3 made to pile up mutually by first clamper 1; process B in which papers 3 which have been clamped are bent to make the upper end parts 3a of the papers shift in the shape of a stair; process C which clamps the upper end parts 3a side in which the papers have shifted by second clamper 2; process D in which the clamp by first clamper 1 is canceled, and which makes the papers clamped by second clamper 2 sag so that the upper end parts 3a may turn up to make the lower end parts 3b of the papers shift in the shape of a stair; and process E which makes the adhesive 6 adhere to the lower end parts 3b of papers 3 by that the adhesive 6 applied on an adhesive carrier 5 is swept in the lower end parts 3b in which the papers have shifted. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a method for applying an adhesive to a booklet such as an album and an adhesive application device.

  In recent years, the opportunity to bind photo paper called a photo book is increasing. In this bookbinding, a photograph printed by silver salt, sublimation transfer or ink jet is bound by a technique such as interleaf binding, ring binding, staple binding or flat binding, or wireless binding.

  Among them, the wireless binding is generally bound by applying glue with a glue wheel or die coat on the end face of a sheet bundle in which book sheets are collected one by one and bonding the cover sheets (for example, Patent Document 1). reference.).

Japanese Patent Laid-Open No. 11-21006

  However, the conventional method has a problem that it is difficult to maintain the adhesive strength because the glue is applied only to the end face of the paper. In particular, in the case of photographic paper whose front and back are coated with resin or the like, it is a problem that bookbinding is difficult.

  Therefore, an object of the present invention is to provide an adhesive application method and an adhesive application device that can solve the above-described problems.

  In order to solve the above problems, the present invention employs the following configuration.

  In order to facilitate understanding of the present invention, reference numerals in the drawings are given in parentheses, but the present invention is not limited thereto.

  According to the first aspect of the present invention, the step (A) of clamping the overlapped sheets (3) with the first clamper (1), and the upper end (3a) of the sheet by curving the clamped sheet (3). Step (B), step (C) of clamping the shifted upper end (3a) side of the sheet with the second clamper (2), and clamping by the first clamper (1). A step (D) of releasing the paper clamped by the second clamper (2) so that the upper end portion (3a) is suspended and shifting the lower end portion (3b) of the paper stepwise; The step of adhering the adhesive (6) to the lower end portion (3b) of the paper so as to sweep the adhesive (6) applied on the adhesive carrier (5) at the lower end portion (3b) of the paper. (E) and the application | coating method of the adhesive agent (6) formed by including is employ | adopted.

  According to a second aspect of the present invention, in the method of applying the adhesive (6) according to the first aspect, in the step (E) of attaching the adhesive (6), the shifted lower end (3b) of the paper and A method of applying the adhesive (6) is employed, wherein the adhesive carrier (5) is moved relatively in the horizontal direction while being relatively close to each other.

  The invention according to claim 3 is the adhesive (6) according to claim 1 or 2, wherein the adhesive (6) is a hot-melt adhesive. The application method is adopted.

  The invention according to claim 4 is the adhesive (6) application method according to any one of claims 1 to 3, wherein the sheet (3) is a printed sheet. The application method 6) is adopted.

  The invention according to claim 5 is the adhesive (6) application method according to any one of claims 1 to 4, wherein the adhesive carrier is a roller (14). The coating method (6) is adopted.

  The invention according to claim 6 is the first clamper (1) for clamping the stacked sheets (3) and the upper end (3a) of the sheet by curving the sheet clamped by the first clamper (1). And the upper end (3a) side of the shifted sheet is clamped, and after the first clamper (1) releases the clamp of the sheet, the sheet (3) is moved to the upper end (3a). ) Is hung down so that the lower end (3b) of the paper is shifted stepwise, and the paper is shifted by relative movement between the second clamper (2) and the second clamper (2). An adhesive (6) applicator (13) comprising an adhesive carrier (5, 16) carrying an adhesive (6) to be applied to the lower end (3b) is employed.

  With the method and apparatus according to the present invention, it is possible to surely infiltrate between sheets as compared with the pasting method used in conventional bookbinding, and even coated paper such as photographic paper, which is difficult to maintain adhesive strength, is sufficient. A booklet with a strong bookbinding strength can be bound.

  Further, according to the method and apparatus of the present invention, the above-mentioned wireless booklet can be easily manufactured.

It is a perspective view which shows the method of making the end surface of the paper bundle which concerns on this invention diagonal. It is a perspective view which shows the method of apply | coating an adhesive agent to the end surface of the paper bundle which concerns on this invention. FIG. 3 is a perspective view illustrating a method for attaching a cover sheet to a sheet bundle to which an adhesive is applied in FIG. 2. It is a perspective view which shows the application | coating apparatus of the adhesive agent which concerns on this invention. It is a perspective view which shows 2nd Embodiment of the method of apply | coating an adhesive agent to the end surface of the paper bundle which concerns on this invention. It is a figure which shows 3rd Embodiment of the method of apply | coating an adhesive agent to the end surface of the paper bundle which concerns on this invention.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

  However, the present invention can be implemented in many different modes, and those skilled in the art can easily understand that the modes and details can be variously changed without departing from the spirit and scope of the present invention. Is done. Therefore, the present invention is not construed as being limited to the description of this embodiment mode. Note that in all the drawings for describing the embodiments, the same portions or portions having similar functions are denoted by the same reference numerals, and repetitive description thereof is omitted.

<Embodiment 1>
When applying glue on the end face of the stacked paper (sheet bundle) 3, in addition to the paper end face, an adhesive 6 such as a hot-melt adhesive or glue (including hot melt) is infiltrated between the paper and the paper. The method for applying the adhesive 6 and the adhesive applying device 13 according to the present invention for improving the adhesive strength between them will be described below.

  Further, the operation such as the application method of the adhesive 6 described below is performed in the order of (A) to (G) in FIGS. 1A to 3G, and (E ′) in FIG. 5 and (F ′) in FIG. These are figures explaining alternative embodiment of embodiment of (E) of FIG. 2, and (F) of FIG.

  First, as shown in FIG. 1A, the lower end 3b of the sheet bundle 3 is restrained by the clamper 2 (A). The movement (opening / closing operation) of the clamper 2 can be reciprocated in the direction of the arrow in FIG. 1 using a driving means such as a screw, a fluid pressure cylinder, or a motor. In the state of FIG. 1A, the clamper 1 opens the sheet bundle 3 at the upper end portion 3a of the sheet bundle 3 (guides the sheet bundle 3 and does not restrain it).

  Next, as shown in FIG. 1B, the sheet bundle 3 is bent to shift the upper end portion 3a of the sheet bundle 3 (B). The clamper 1 guiding the sheet bundle 3 is rolled over in the direction of the arrow in FIG. 1B. Then, the sheet bundle 3 in which the lower end portion 3b of the sheet bundle 3 is restrained by the clamper 2 is bent like a bow, and the sheet is shifted from one sheet to another at the end face of the upper end portion 3a of the sheet bundle 3 to form a step. The movement of the clamper 2 (opening / closing operation, rotating operation) can be reciprocated in the direction of the arrow in FIG.

  Next, as shown in FIG. 1C, after the upper end 3a of the sheet bundle 3 is restrained by the clamper 1, the clamper 2 opens the lower end 3b of the sheet bundle 3 (C). Thereafter, as shown in FIG. 1D, the clamper 1 is returned to the state shown in FIG. 1A, and the sheet bundle 3 is returned straight (D). 1B and 1D, the sheet bundle 3 is bent and the end face is shifted one sheet at a time by the lower end portion 3b of the sheet bundle 3 (the sheet is twisted and the end face is shifted).

  Thereafter, as shown in FIG. 2, the substrate 5 that is an adhesive carrier inclined by θ2 with respect to the horizontal direction and coated with an adhesive 6 such as a hot-melt adhesive or glue (including hot melt) in advance. Then, the end surface of the lower end portion 3b of the shifted sheet bundle 3 is brought into contact with the adhesive 6 one by one while moving in the horizontal direction (E).

  In this case, the inclined angle θ2 of the substrate 5 is made to be an acute angle (smaller) than the shift angle θ1 (see FIG. 1D) of the sheet end face.

  When all the sheet end surfaces are in contact with the substrate 5 and the application of the adhesive 6 such as hot melt adhesive or glue is completed, the upper end 3a of the sheet bundle 3 is opened by the clamper 1 and the lower end 3b of the sheet bundle 3 is removed. Restrained by the clamper 2. That is, simultaneously with the clamping of the sheet bundle 3, the end surfaces of the sheets are horizontally aligned on the upper surface of the clamper 1 (F).

  By the above operation, the glue can be surely infiltrated between the sheets in the method of applying the adhesive 6 such as the hot melt adhesive or glue to the sheet bundle 3.

  Furthermore, as shown in FIG. 3, a cover can be attached to the sheet bundle 3 coated with the adhesive 6 and nipped by the nip device 7 (G) to form a booklet. Finally, the booklet is completed by cutting off the forehead or three sides in a separate process.

  FIG. 4 shows a schematic diagram of an adhesive application device 13 using the method of applying the adhesive 6.

  The adhesive applicator 13 is capable of rotating the clamper 1 and a clamp mechanism (clamper 1) for clamping the upper end 3a of the sheet bundle 3 serving as the main paper and a clamp mechanism (clamper 2) for clamping the lower end 3b of the sheet bundle 3. A table mechanism such as a clamper table 9 provided with a clamper 1 rotation groove 8 for the clamper 1 and a clamper table 9 including the cylinder 4 and the clamper table 9 provided with the clamper 2 are supported by the table. A slider mechanism such as a slider 10 provided with a conveying groove 11, a substrate 5 that melts the adhesive 6 such as a hot-melt adhesive or glue, and applies the adhesive 6 to a booklet such as the sheet bundle 3, and the adhesive 6 is constituted by a nip mechanism such as a nip device 7 including a cover nip portion 7a for attaching a cover sheet to the sheet bundle 3 coated with 6 and performing a nip. These mechanisms and drives are driven manually or by a motor or a fluid cylinder.

  A paper mount 12 that supports the paper bundle 3 is installed at the lower end of the clamper 2.

  When the sheet bundle 3 is placed on the sheet placing table 12, the clamper 2 clamps the lower end portion 3b of the sheet bundle 3 as described with reference to FIG. In this state, the clamper 1 opens the sheet bundle 3 at the upper end portion 3a of the sheet bundle 3 (guides the sheet bundle 3 and does not restrain it).

  Thereafter, as described with reference to FIG. 1B, the clamper 1 rolls over along the clamper 1 rotation groove 8 provided on the clamper table 9, the sheet bundle 3 bends in a bow shape, and the sheet is formed at the end surface of the upper end portion 3a of the sheet bundle 3. However, there is a difference in level.

  The clamper 1 restrains the upper end portion 3a of the sheet bundle 3 as described with reference to FIG. 1C in a state where the sheets are shifted from one sheet to another at the end face of the upper end portion 3a of the sheet bundle 3, and thereafter the clamper 2 opens the lower end 3 b of the sheet bundle 3.

  Then, after the clamper 2 opens the lower end 3b of the sheet bundle 3, as shown in FIG. 1D, the clamper 1 is moved along the clamper 1 rotation groove 8 provided in the clamper table 9 as shown in FIG. In the vertical direction) and the sheet bundle 3 is also returned straight (in the vertical direction).

  Then, as shown in FIG. 1D, the end face of the lower end portion 3b of the sheet bundle 3 is also stepped by shifting the sheets one by one, like the end face of the upper end portion 3a of the sheet bundle 3 clamped by the clamper 1.

  Next, the clamper 1 that clamps the upper end portion 3 a of the sheet bundle 3 including the clamper table 9 and the cylinder 4 while maintaining the angle θ 2 with respect to the horizontal direction horizontally moves the slider 10 along the table conveying groove 11. It moves in the direction (refer to Embodiment 2 for details).

  In this case, with respect to the horizontal direction, the angle θ2 for bringing the sheet bundle 3 closer to the substrate 5 on which the adhesive 6 is placed is set to be an acute angle (smaller) than the shift angle θ1 of the sheet end surface.

  After the adhesive 6 is applied to all the stepped portions formed by shifting the sheets on the end surface of the lower end portion 3b of the sheet bundle 3 one by one, as described with reference to FIG. The part 3 a is opened, and the clamper 2 restrains the lower end part 3 b of the sheet bundle 3. In this way, the lower end portion 3b of the sheet bundle 3 in which the end surfaces of the sheets are aligned horizontally on the lower surface of the clamper 2 is clamped by the clamper 2, and the end surfaces of the sheets are aligned horizontally on the upper surface of the clamper 1.

  Thereafter, the clamper table 9 is moved in the vertical direction along the table conveying groove 11, and the sheet bundle 3 to which the adhesive 6 is applied is set in the cover nip portion 7a on which the cover is prepared, as shown in FIG. The sheet bundle 3 can be formed into a booklet by pasting the cover sheet onto the sheet bundle 3 at the cover nip portion 7a.

  With the above operation, the hot melt adhesive, glue, or other adhesive 6 can be surely infiltrated between the sheets in the hot melt adhesive, glue, or other adhesive applicator 13 to the sheet bundle 3.

  In addition, the board | substrate 5 may be warmed with heating apparatuses, such as a heater, and the adhesive agent containing the hot melt etc. on the board | substrate 5 may be warmed.

<Embodiment 2>
Further, in another embodiment of the method for applying the adhesive 6 and the adhesive applying device 13, as shown in FIG. 2, the top surface of the substrate 5 is inclined and the sheet bundle 3 is moved horizontally, as shown in FIG. As described above, the sheet bundle 3 may be conveyed obliquely to the substrate 5.

  In addition, in Embodiment 2, the same part as Embodiment 1 is shown with the same code | symbol, and the overlapping description is abbreviate | omitted.

  In FIG. 5, the adhesive 6 is applied to the adhesive 6 by bringing the end face of the sheet bundle 3 into contact with each other little by little (sheets one by one) (E ′). At this time, the angle θ2 at which the sheet bundle 3 is conveyed obliquely to the substrate 5 with respect to the horizontal direction is not related to the deviation angle θ1 of the sheet end surface.

  In this way, the adhesive 6 can be applied to one end of all the sheets in the sheet bundle 3 and the sheet surface from the one end toward the center of the sheet.

  When all the sheet end faces are in contact with the substrate 5 and the application of the adhesive 6 such as hot melt adhesive or glue is completed, the upper end 3a of the sheet bundle 3 is opened by the clamper 1 and the lower end 3b of the sheet bundle is clamped by the clamper 2. Restrain at. That is, simultaneously with the clamping of the sheet bundle 3, the end surfaces of the sheets are horizontally aligned on the upper surface of the clamper 1 (F ').

  With the above operation, in the method of applying the adhesive 6 such as a hot melt adhesive or glue to the sheet bundle 3, the hot melt adhesive or adhesive 6 such as glue can be surely entered between the sheets. .

  Further, as shown in FIG. 3 described above, a cover can be attached to the sheet bundle 3 to which the adhesive 6 has been applied and nipped by the nip device 7 (G) to form a booklet. Finally, the booklet is completed by cutting off the forehead or three sides in a separate process.

  Also in this embodiment, the board | substrate 5 may be warmed with heating apparatuses, such as a heater, and the adhesive agent containing the hot melt etc. on the board | substrate 5 may be warmed.

  As described above, the adhesive application method and the adhesive application device 13 according to the present application ensure that a hot-melt adhesive, an adhesive, etc. is used between the sheets, rather than the adhesive application method used in conventional wireless binding. 6 can be infiltrated, and even a coated paper such as a photographic paper whose adhesive strength is difficult to maintain can bind a binding booklet having a sufficient binding strength.

<Embodiment 3>
Further, in another embodiment of the method for applying the adhesive 6 and the adhesive applying device, as shown in FIG. 6, the adhesive 6 adhered to the surface of the roller 14 as an adhesive carrier via an attachment roller 15. May be applied to all of the end surfaces of the lower end portion 3 b of the sheet bundle 3 by the rotation of the roller 14.

  In FIG. 6, the application roller 15 rotates in a container 16 filled with the adhesive 6. Then, the adhesive 6 attached to the surface of the attaching roller 15 adheres to the surface of the roller 14 that rotates in the opposite direction to the attaching roller 15.

  Above the roller 14, the end surface of the lower end 3 b of the sheet bundle 3 clamped by the clamper 1 is installed so as to contact (or press) the surface of the roller 14.

  When the roller 14 arranged in this way rotates, the adhesive 6 is applied from the roller 14 to the step portions of all the sheets on the end surface of the lower end 3b of the sheet bundle 3.

  Therefore, the adhesive 6 can be applied to one end of all the sheets of the sheet bundle 3 and the sheet surface from the one end toward the center of the sheet.

  Further, the sheet bundle 3 clamped by the clamper 1 is moved in the horizontal direction without rotating the roller 14 or by rotating the roller 14, so that all the stepped portions of the sheet on the end surface of the lower end 3 b are moved. The adhesive 6 may be applied from the roller 14.

  Further, it is possible to adjust the amount of the adhesive 6 applied to the end surface of the lower end portion 3b of the sheet bundle 3 by moving the roller 14 in the vertical direction.

  The container 16 may be provided with a heater (not shown), and paste such as hot melt as the adhesive 6 may be melted by the heat of the heater. Furthermore, the roller 14 and / or the attaching roller 15 may be provided with a heater (not shown) so that the adhesive such as hot melt as the adhesive 6 can maintain the molten state by the heat of the heater.

  In addition, this invention is not limited to the said embodiment, A various change is possible within the range of the summary of this invention. For example, the sheet bundle 3 is not particularly described in the embodiment, but according to the present invention, the sheet bundle 3 can be a photo paper, an album, a picture book, a catalog, or the like.

1, 2 ... Clamper 3 ... Overlapping paper (paper bundle)
3a ... Upper end of sheet bundle 3b ... Lower end of sheet bundle 4 ... Cylinder 5 ... Substrate 6 ... Adhesive 7 ... Nip device 8 ... Clamper 1 rotation groove 9 ... Clamper table 10 ... Slider 11 ... Table conveyance groove 12 ... Paper loading Table 13 ... Adhesive application device 14 ... Roller 15 ... Applicable roller 16 ... Container

Claims (6)

Clamping the overlapped paper with a first clamper;
Curving the clamped paper and shifting the upper end of the paper stepwise;
Clamping the shifted upper end side of the paper with a second clamper;
Releasing the clamp by the first clamper, suspending the paper clamped by the second clamper so that the upper end portion is on the upper side, and shifting the lower end portion of the paper stepwise;
Adhering the adhesive to the lower end of the paper so as to sweep the adhesive applied on the adhesive carrier at the shifted lower end of the paper;
A method of applying an adhesive, comprising: The method of applying an adhesive according to claim 1,
In the step of adhering the adhesive, the adhesive applying method is characterized in that the lower end of the sheet and the adhesive carrier are moved relatively in the horizontal direction while relatively approaching each other. .   3. The method of applying an adhesive according to claim 1, wherein the adhesive is a hot-melt adhesive.   The method for applying an adhesive according to any one of claims 1 to 3, wherein the paper is a printed paper. In the application method of the adhesive according to any one of claims 1 to 4,
The method of applying an adhesive, wherein the adhesive carrier is a roller. A first clamper for clamping the stacked paper;
After curving the paper clamped by the first clamper and shifting the upper end of the paper stepwise, clamping the upper end of the shifted paper, and the first clamper releasing the paper clamp A second clamper that hangs the sheet so that the upper end is on the top and shifts the lower end of the sheet stepwise;
An adhesive carrier for carrying an adhesive to be applied to the lower end of the sheet shifted by relative movement with the second clamper;
An adhesive application device comprising:

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