JP5726570B2 - Sheet folding adhesive device - Google Patents

Description

  The present invention relates to a sheet folding adhesive device that folds a sheet coated with a pressure sensitive adhesive to create a concealed postcard or the like.

  2. Description of the Related Art In recent years, a delivery body in which a surface on which concealment information is formed with a pressure-sensitive adhesive that can be removed, such as a concealment postcard, is pressure-bonded. In such a sending body, a sheet on which predetermined information is printed and a pressure-sensitive adhesive is applied is folded in a predetermined shape such as V-folding, Z-folding or wrapping folding, and then a predetermined pressure is applied by a pressure roller to bond the sheet. There are known apparatuses that perform these series of steps. Some of these devices are on the desktop, and it is desired to save space by reducing the installation area.

  Conventionally, devices shown in the following patent documents are generally used as devices for folding and bonding sheets. That is, as shown in Patent Documents 1 and 2, a sheet coated with an adhesive is sent out in a horizontal state with respect to the apparatus installation surface, the sheet is folded by a fold, and this is placed in a horizontal state. Adhesion is performed through a pressure roller.

Japanese Examined Patent Publication No. 03-03874 Japanese Patent No. 3464235

  In the above-mentioned conventional apparatus, the sheet feeding form is horizontal and the pressure roller is also arranged horizontally, so that the folded state can be stabilized and conveyed from the folding portion to the pressure roller. The width (length) must be secured, and it is difficult to reduce the apparatus installation area as the entire apparatus.

  In this case, it is possible to convey the folded sheet vertically and press it with a pressure roller. However, since the sheet coated with the adhesive is not yet adhered even when folded, it is easy to curl and cannot be stably conveyed vertically. At the same time, the curled part may be folded by pressure bonding, and it is strongly recognized that the sheet coated with adhesive cannot be conveyed vertically, and eventually the pressure roller must be placed horizontally. There is a problem that it is difficult to save space by reducing the device installation area.

  Accordingly, the present invention has been made in view of the above problems, and by allowing the folded sheet to be conveyed vertically in a vertical direction, the pressure roller can be arranged in a vertical state, thereby reducing the installation area of the apparatus and saving space. An object of the present invention is to provide a sheet folding and bonding apparatus.

In order to solve the above-mentioned problem, in the invention of claim 1 , a supply unit that supplies a sheet coated with a pressure-sensitive adhesive in a horizontal state with respect to the apparatus installation surface, and a folded sheet by folding the supplied sheet A vertical conveyance space having a narrow width in the lateral direction of the apparatus is formed by the folding part and the vertical conveyance area inner wall part and the vertical conveyance area outer wall part in a direction perpendicular to the apparatus installation surface, and a folded sheet is received from the folding part. The vertical conveying unit that conveys the vertical direction and the folding sheet that is vertically conveyed from the vertical conveying unit are pressure-bonded and discharged, and are provided perpendicular to the apparatus installation surface in the axial direction. A pressure roller, and the vertical conveyance unit is provided on a side surface of the vertical conveyance space, a feed roller unit that drops the folded sheet received from the folding unit into the vertical conveyance space in the vertical direction, Occasionally A conveying unit that sends the folded sheet to the pressure roller in the vertical direction, and is disposed opposite to the conveying unit with the vertical conveying space interposed therebetween, and when the folded sheet is dropped into the bottom of the vertical conveying space, the folded sheet is And a pressing roller unit that is driven to be pushed into the conveyance unit side and assists conveyance by the conveyance unit in a sandwiched state with the conveyance unit.
According to a second aspect of the present invention, the pressing roller of the vertical conveyance unit is driven to push the folding sheet toward the conveyance unit when the folded sheet is dropped into the bottom of the vertical conveyance space. When it is set to the clamping state, it is configured such that it is once released at the moment of holding and is held immediately after that.
According to a third aspect of the present invention, a restriction piece is formed in the vertical conveyance space of the vertical conveyance unit to regulate bounce at the bottom with respect to the folded folded sheet.

According to the present invention, a folded sheet of a sheet pressure-sensitive adhesive is applied is folded is supplied in a horizontal state with respect to the apparatus installation surface, in a vertical direction with respect to the apparatus installation plane, the vertical transfer area inner wall And a conveyance unit provided in the vertical conveyance space while dropping the folded sheet into the vertical conveyance unit in which a narrow vertical conveyance space is formed in the horizontal direction of the apparatus by the outer wall of the vertical conveyance region , and the folded sheet remains in the vertical direction. The folded sheet dropped into the vertical conveyance space is clamped between the conveyance unit and the pressure roller unit by being configured to be sent out from the conveyance unit to the pressure roller arranged in the vertical direction while being held by the pressure roller unit. As a result, the folded sheet can be reliably conveyed vertically without curling, so that the pressure roller can be arranged in a state perpendicular to the apparatus installation surface. Reduction of installation area, in which it is possible to save space.

It is a conceptual lineblock diagram of a sheet folding adhesion device concerning the present invention. It is explanatory drawing of the vertical conveyance part of FIG. It is a conceptual explanatory drawing of the operation | movement in the sheet folding bonding apparatus of FIG. It is operation | movement explanatory drawing of the side cross section of FIG. It is operation | movement explanatory drawing (1) of the front side of FIG. It is operation | movement explanatory drawing (2) of the front side of FIG. It is explanatory drawing of the stacker part of FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that in the present embodiment, each drive main body and drive control means are not shown.
FIG. 1 is a conceptual configuration diagram of a sheet folding and bonding apparatus according to the present invention, and FIG. 2 is an explanatory diagram of the vertical conveyance unit of FIG. Note that FIG. 1B is a conceptual cross-sectional view from the direction A of FIG. In FIG. 1A, the sheet folding and bonding apparatus 11 includes a sheet crimping main body 12 and a stacker unit 13. In FIG. 1B, the sheet press-bonding main body 12 includes a sheet supply unit 21, a target sheet generation unit 22, a collection unit 23, a folding unit 24, a vertical conveyance unit 25, and pressure rollers 26 (26A and 26B). In this case, the pressure roller 26 (26A, 26B) is provided on the front side in the drawing, but is indicated by a wavy line to indicate the back side.

  The sheet supply unit 21 includes a sheet supply table 31 and a sheet supply roller 32, and a sheet 33 to be pressed is mounted on the sheet supply table 31. The sheet supply base 31 is movable up and down, and includes a mechanism for urging the loaded sheet 33 group to be pushed up to the upper sheet supply roller 32. The sheet supply roller 32 is arranged in a horizontal state with respect to the apparatus installation surface, and the sheet 33 is supplied in a horizontal state from the sheet supply number 31.

  Although not shown, each sheet 33 is formed by applying a pressure-sensitive adhesive to the whole or a part (for example, a peripheral edge, a striped pattern, etc.) on one or both sides of the sheet and printing predetermined information. In addition, as a pressure sensitive adhesive, it is a conventional thing, it adhere | attaches by applying a predetermined pressure, is a thing of peeling or strong adhesion | attachment, and is used suitably according to the objective. Here, each sheet 33 is intended for a single piece of paper with a margin or a recording piece, or a single piece of paper having an area of three or four postcards.

  The target sheet generation unit 22 includes a paper feed roller 41 and a cutter roller 42. The paper feed roller 41 guides the sheet supplied from the sheet supply unit 21 to the cutter roller 42. In this embodiment, the cutter roller 42 cuts each sheet 33 into a single piece of paper having an area equivalent to four postcards and cuts it into two sheets from the center to form sheets to be crimped (33A, 33B). . When the cutting is not performed, the cutter roller 42 is not necessary, and it is possible to select not to perform the cutting by disengaging the upper and lower blades.

  Further, when the above-mentioned margin (edge) or a sheet of single-sheet paper with a retaining piece is targeted, the sheet is cut not by the center but by a line corresponding to the margin or the retaining piece. In the case where the margin or the cut piece is cut by the cutter roller 42, the cut blank piece or the cut piece is collected by the collecting unit 23.

  The folding unit 24 is of a conventional mechanism and includes folding blades 51 (51A, 51B) and a folding roller group 52. In this embodiment, the sheets (33A, 33B) to be pressed are V-folded to form a folded sheet, which is composed of two folding blades 51A, 51B and five folding rollers. In addition, as a crimping | compression-bonding form (folding form), it can also be set as Z-folding, entrainment folding, etc. However, since the length in the feeding direction of the folded sheet after folding is different depending on the V-folding or Z-folding, the final roller of the folding roller group 52 and the vertical conveying unit 25 described later are received according to the length. The arrangement distance with the mouth is set.

  The vertical conveyance unit 25 has a vertical conveyance space formed in a vertical direction (longitudinal direction) with respect to the apparatus installation surface. The vertical conveyance unit 25 receives a folded sheet from the folding unit 25 and conveys the folded sheet in the vertical direction. A feed roller 62, a feed press roller 63, a transport belt 64 of the transport unit, and a transport press roller 65 are provided.

  The vertical transfer area 61 forms a vertical transfer space 61C in the horizontal direction of the apparatus by the vertical transfer area inner wall 61A and the vertical transfer area outer wall 61B. The width of the vertical conveyance space 61C (the distance between the vertical conveyance region inner wall portion 61A and the vertical conveyance region outer wall portion 61B) is desirably narrow so as to correct the curl to the minimum.

  Here, referring to FIGS. 2 (A) and 2 (B) together with FIG. 1 (B), it is a receiving portion of the folded sheet from the folding section 24 on the side of the longitudinal conveyance area inner wall 61A of the vertical conveyance area 61. A feed roller 62 (four feed rollers 62A to 62D shown in FIG. 2A) is arranged in the lateral direction of the apparatus, and faces the feed roller 62 on the side of the vertical conveyance area outer wall 61B across the vertical conveyance space 61C. Corresponding feed pressing rollers 63 (four feed pressing rollers 63A to 63D shown in FIG. 2B) are arranged. The feed roller 62 and the feed presser roller 63 constitute a feed roller portion.

  The feed roller 62 drops the folded sheet received from the folding unit 24 into the vertical conveyance space 61C in the vertical direction, and is always rotated in a driving state, for example. Further, the feed pressing roller 63 is urged against the feed roller 62 and brought into contact with the feed roller 62 to assist the feed of the feed roller 62. The feed pressing roller 63 can be released so as not to contact the feed roller 62 manually, for example. For example, the contact is made in the case of a relatively small folded sheet, and the contact is released in the case of a large folded sheet. When the contact is released, a restricting piece may be formed that restricts bounce when the folded sheet is dropped above the vertical conveyance region 61 and bounces at the bottom.

  A conveyor belt 64 is provided on the side of the vertical conveyance area 61 </ b> A on the side surface of the vertical conveyance space 61 </ b> C below the vertical conveyance unit 25. The conveyance belt 64 performs vertical conveyance in which the folded sheet is sent to the pressure roller 26 (26A, 26B) in the vertical direction with the apparatus horizontal direction as the conveyance direction.

  Further, a conveyance pressing roller 65 (three conveyance pressing rollers 65A to 65C shown in FIG. 2B) that constitutes a pressing roller unit is disposed opposite to the conveyance belt 64 and the vertical conveyance space 61C. The conveyance pressing roller 65 is driven to push the folding sheet toward the conveyance belt 64 when the folded sheet is dropped into the bottom of the vertical conveyance space 61 </ b> C, and the conveyance belt 64 is sandwiched with the conveyance belt 64. It plays the role of assisting the conveyance by. The driving mechanism of the conveyance pressing roller 65 is not shown, but is driven by, for example, a solenoid (the driving form will be described with reference to FIGS. 5 and 6).

  A predetermined number (three in this case) of sensors 66 (66 </ b> A to 66 </ b> C) are arranged as detection units in the vicinity of the bottom portion on the vertical conveyance region inner wall 61 </ b> A side in the vertical conveyance unit 25. The sensor 66 detects a folded sheet dropped into the vertical conveyance space 61C as one and drives the conveyance pressing roller 65. Further, it is possible to detect a conveyance failure (jam) of the folded sheet by measuring the detection time. By the way, it is not always necessary to provide the sensor 66 at the bottom of the vertical conveyance unit 25. For example, you may provide in the exit of the folding part 24, the upper direction of the vertical conveyance part 25, etc. In this case, the conveyance pressing roller 65 can be driven after a predetermined time has elapsed since the detection.

  The pressure roller 26 (26A, 26B) is provided at the conveyance outlet of the conveyance belt 64 so as to be perpendicular to the apparatus installation surface in the axial direction (see FIG. 3C). The pressure roller 26 is for pressing and bonding the folded sheet conveyed vertically from the vertical conveying unit 25 in the vertical direction, and discharging the sheet to the stacker unit 13 after pressure bonding.

Next, FIG. 3 shows a conceptual explanatory view of the operation in the sheet folding and bonding apparatus of FIG. 1, FIG. 4 shows an operation explanatory view of the side cross section of FIG . 3, and FIGS. 5 and 6 show the operation of the front side of FIG. The figure is shown. 5 and 6 show the vertical conveyance area portion in a watermarked state. The conveyance pressing rollers 65A to 65C are in a driving state, and the case in which they are indicated by a wavy line are released. State (original position). In addition, here, the sheet 33 having an area equivalent to four postcards will be described.

  First, in FIG. 3A, in the sheet 33 group mounted on the sheet supply table 31, the uppermost sheet 33 is supplied in a horizontal state by the supply roller and guided by the paper feed roller 41 of the target sheet generation unit 22, The sheet is cut at the center by the roller 42 to obtain two target sheets 33A and 33B.

  As shown in FIG. 3B, each of the sheets 33A and 33B is guided as it is by the first folding roller of the folding roller group 52 of the folding section 24 and processed into a V-fold by the folding blades 51A and 51B. . And it is sent out to the vertical conveyance part 25 as folding sheet 33A, 33B with the last folding roller of the folding roller group 52. FIG.

  In the vertical conveyance unit 25, as shown in FIGS. 3B and 4A, the folded sheets 33A and 33B are moved in the vertical direction by feed rollers 62 (62A to 62D) and feed press rollers 63 (63A to 63D). Receiving and sending it down in the vertical conveyance space 61C. When the folded folding sheets 33A and 33B are detected as shown in FIGS. 3 (C), 4 (B) and 5 (A), among the sensors 66, for example, both the sensor 66A and the sensor 66C detect the folded sheets 33A and 33B. All the conveyance pressing rollers 65 (65A to 65C) are driven toward the conveyance belt 64 to sandwich the folded sheets 33A and 33B.

  As shown in FIG. 3C, the folded sheets 33A and 33B sandwiched between the transport belt 64 and the transport press roller 65 are transported by the transport belt 64 (at this time, each transport press roller 65 rotates in the transport direction). )) And sent out to the pressure-bonding rollers 26A and 26B in the vertical direction.

  In the pressure rollers 26A and 26B, first, the folding sheet 33A is fed into the stacker unit 13 as a folded adhesive sheet 34 bonded by pressure bonding, and then the folding sheet 33B is fed and pressure bonded. As a result, the folded adhesive sheet 34 is discharged to the stacker unit 13.

  As described above, since the folding sheets 33A and 33B dropped into the vertical conveyance space 61C are sandwiched between the conveyance belt 64 and the pressing roller portions 65A to 65C, the folding sheets 33A and 33B are surely conveyed vertically without curling. Therefore, the pressure-bonding rollers 26A and 26B can be arranged in a state perpendicular to the apparatus installation surface, and as a result, the apparatus installation area can be reduced and the space can be saved.

  By the way, the folding sheets 33A and 33B dropped in the vertical conveyance space 61C are inclined when they are sandwiched between the conveyance belts 64 depending on the driving timing of the conveyance pressing rollers 65 (65A to 65C) (the bottom is vertically conveyed). In a state of being inclined with respect to the bottom side of the region portion 61), bouncing on the bottom portion of the vertical conveyance region portion 61 depending on the operation timing, and being floated from the bottom portion. is there.

  Therefore, at the moment when the folding sheets 33A and 33B are first sandwiched between the conveyance pressing rollers 65 (65A to 65C) and the conveyance belt 64 (FIGS. 4B and 5A), all the conveyance depressions are temporarily performed. The folding sheets 33A and 33B are released so that the rollers 65 (65A to 65C) return to their original positions (FIGS. 4C and 5B), and immediately thereafter, the conveyance pressing roller 65 (65A to 65C) and the conveyance belt. 64 is operated (FIG. 4D). That is, when released, the folded sheets 33A and 33B are transported by being sandwiched between the transport pressing roller 65 (65A to 65C) and the transport belt 64 in a state where the folding sheets 33A and 33B descend to the bottom of the vertical transport region 61 and have no inclination. It is something that can be done.

  In addition, after releasing the folding sheets 33A and 33B, not all the conveyance pressing rollers 65 are joined together, but sequentially from the conveyance pressing roller 65A to the conveyance pressing rollers 65B, as shown in FIGS. By driving like the conveyance pressing roller 65C and sequentially folding the folded sheets with the conveyance belt 64, the sheet can be sent out with an appropriate distance from the pressure rollers 26A and 26B.

  Finally, FIG. 7 shows an explanatory diagram of the stacker unit of FIG. In FIG. 7, the discharge position of the folded adhesive sheet 34 crimped by the pressure rollers 26A and 26B in the vertical state is provided as a pressing wall 71, and the discharge outlet is a taper 71A. The pressing wall 71 is provided with a slidable tip regulating plate 72 that regulates the tip of the folded adhesive sheet 34 that is discharged. In addition, there is provided an overlapping pressing plate 73 that is slidable to the front side of the apparatus from the pressing wall 71 and biased to the pressing wall 71 side.

  Such a stacker unit 13 is regulated by the tip regulating plate 72 when the folded adhesive sheet 34 is sequentially ejected from the ejection outlet, and is stacked along the pressing wall 71. That is, the folded adhesive sheet 34 discharged by the taper 71A is always inserted inside the overlapped state (on the pressing wall 71 side). As a result, the folded adhesive sheets 34 can be stacked in an orderly manner, and the folded adhesive sheets 34 that have been stacked to some extent even during operation can be taken out in a bundle.

  INDUSTRIAL APPLICABILITY The sheet folding and bonding apparatus of the present invention can be used in industries that fold and bond sheets to produce postcards, sealed letters, and various cards.

DESCRIPTION OF SYMBOLS 11 Sheet folding adhesion apparatus 12 Sheet crimping main body 13 Stacker part 21 Sheet supply part 22 Target sheet production | generation part 23 Collecting part 24 Folding part 25 Vertical conveyance part 26 Crimping roller 33 Sheet 33A, 33B Folding sheet 34 Folding adhesive sheet 41 Paper feed roller 42 Cutter Roller 51 Folding blade 52 Folding roller group 61 Vertical conveying area 61C Vertical conveying space 62 Feeding roller 63 Feeding pressure roller 64 Conveying belt 65 Conveying pressure roller 66 Sensor

Claims (3)

A supply unit for supplying a sheet coated with a pressure sensitive adhesive in a horizontal state with respect to the apparatus installation surface;
A folding part that folds the supplied sheet into a folded sheet;
In the direction perpendicular to the apparatus installation surface, a vertical conveyance space narrow in the horizontal direction of the apparatus is formed by the inner wall portion of the vertical conveyance region and the outer wall portion of the vertical conveyance region, and a folded sheet is received from the folding portion and conveyed in the vertical direction. A vertical conveying section,
For pressure-bonding and discharging the folded sheet vertically conveyed from the vertical conveying unit, a pressure roller provided perpendicular to the apparatus installation surface in the axial direction;
Have
The vertical conveying section is
A feed roller section for dropping the folded sheet received from the folding section into the vertical conveying space in the vertical direction;
A conveyance unit that is provided on a side surface of the vertical conveyance space, and that feeds the folded sheet to the pressure roller in the vertical direction;
A state of being sandwiched between the transport unit and the transport unit, which is disposed opposite to the transport unit and is driven to push the folded sheet into the transport unit when the folded sheet is dropped into the bottom of the vertical transport space. And a pressing roller unit for assisting the conveyance by the conveyance unit,
A sheet folding bonding apparatus comprising: The sheet folding bonding apparatus according to claim 1,
When the folding roller is driven to push the folded sheet into the conveying unit side when the folded sheet is dropped into the bottom of the vertical conveying space, the holding roller of the vertical conveying unit is in a clamping state with the conveying unit. A sheet folding adhesive device, wherein the sheet folding adhesive device is released once at the moment when the gripping is performed, and is held immediately after that. The sheet folding adhesive device according to claim 1 or 2,
A sheet folding device, wherein a regulation piece that regulates bounce at the bottom of the folded folded sheet is formed in a vertical conveyance space of the vertical conveyance unit.

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