JP2016203550A - Glue scraping device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a glue scraping device that scrapes only a certain amount of a portion of both ends of the glue coated on a back surface without being affected by the size (vertical direction) of a text sheet bundle.SOLUTION: In a glue coating apparatus 125, a text sheet bundle PS equally coated on a back surface in a predetermined thickness is moved to a push down starting position, and is made to fall from this push down starting position based on the push down amount defined according to the length in the vertical direction of the text sheet bundle PS. Glue scraping means 2 turns the text sheet bundle PS to the downward direction following the lowering thereof while each corner in the vertical direction of the text sheet bundle PS coming down comes into contact, the text sheet bundle PS is made to slide to the glue scraping direction while a space between the corner and the glue scraping surface 2d becomes a predetermined glue scraping angle θ, and thereby a portion of both ends in the longitudinal direction in the glue G coated on the back surface of the text sheet bundle PS is scraped.SELECTED DRAWING: Figure 2

Description

  The present invention is employed in a bookbinding system in which a booklet is produced by binding a bundle of body sheets made up of a plurality of body sheets printed by a printing apparatus with a cover sheet using a bookbinding apparatus, and applied to the back of the bundle of body sheets of text. The present invention relates to a glue scraping device that removes a part of the glue to prevent the glue from protruding from the end of the cover sheet during booklet production.

  The applicant of the present application prevents the glue from sticking out at both ends of the back side of the text sheet bundle, and the back end of the text sheet bundle is not short of glue, causing problems such as back cracking and hollowing out. In order to manufacture a difficult book, an adhesive is uniformly applied to the entire back surface by an application means having a coating surface that is as long as the back surface of the text paper bundle, and the adhesive is applied to the back surface of the text paper bundle. Of the adhesive applied to the back surface of the text sheet bundle by relatively moving the removing means and the text sheet bundle along the direction perpendicular to the longitudinal direction, a part of the adhesive at both ends in the longitudinal direction of the back surface is removed. A bookbinding apparatus has been developed that can appropriately adjust the thickness or amount of the adhesive that is removed and left at both ends (refer to Patent Document 1 below for details).

JP 2014-104710 A

  By the way, in the gluing operation in the apparatus disclosed in Patent Document 1, a part of both ends of the glue applied to the back of the bundle is removed by a removing means (blade) in the process of moving the text sheet bundle to the booklet forming position. It is.

  However, since the size of the booklet to be produced according to the user's needs (the length in the vertical direction) is diverse, when trying to cope with various sizes by the removing means disclosed in Patent Document 1, the booklet size can be considered. A corresponding step must be formed, which is not realistic.

  This invention is made in view of such a subject, and provides the glue scraping apparatus which can scrape off part of the both ends of the glue apply | coated irrespective of the booklet size to produce. It is aimed.

  As a result of intensive studies in order to solve the above-described new problems, the present inventor has come to obtain an invention having the following configuration proposed in the present application.

The glue scraping device according to claim 1, wherein the glue scraping device scrapes off part of both ends of the glue applied to the back surface of the text sheet bundle in which a plurality of text sheets are stacked.
A pair of plate-like members that are pivotally supported so as to be pivotable downward from a horizontal state around a support shaft arranged along the thickness direction of the text paper bundle outside the longitudinal direction of the text paper bundle, Glue scraping means disposed opposite to each other along the longitudinal direction of the text sheet bundle;
Moving means for relatively moving the text sheet bundle to which the glue is applied and the glue scraping means;
At least a part of the back surface of the text sheet bundle is pressed against the glue scraping means to set the glue scraping means to a predetermined glue scraping angle, and the text sheet bundle is set to a predetermined glue scraping angle at the glue scraping angle. A control unit for controlling the moving means to move in the taking direction;
It is characterized by having.

  Further, the glue scraping device according to claim 2 is the glue scraping device according to claim 1, wherein the control unit is configured to control the paste of the text sheet bundle to which the glue is applied according to the scraping amount of the glue. It is characterized by adjusting and controlling the amount of pressing down on the glue scraping means.

  The glue scraping device according to claim 3 is the glue scraping device according to claim 1 or 2, wherein the glue applied to the text sheet bundle is applied to the glue scraping surface of the glue scraping means. A plurality of through-holes for dropping downward are formed.

  Further, the glue scraping device according to claim 4 is the glue scraping device according to any one of claims 1 to 3, wherein the glue scraping means is directed from the base end portion on the support shaft side to the tip end portion. It is characterized by a shape that is gradually curved downward from the horizontal direction.

The glue scraping device according to claim 5 is the glue scraping device according to any one of claims 1 to 3, wherein the glue scraping surface of the glue scraping means is arranged in the thickness direction of the text sheet bundle. A plurality of convex portions provided at predetermined intervals along the
A guide portion provided between the respective convex portions, for guiding the glue scraped off by the convex portions downward;
A paper receiving portion that contacts a paper edge of the paper bundle when the text paper bundle is in contact with the convex portion;
It is characterized by having.

  According to the glue scraping device described in claim 1, a desired amount of glue applied to the back surface of the text sheet bundle without being influenced by the size of the text sheet bundle (particularly the length in the vertical direction). Only the glue can be scraped off.

  Further, according to the glue scraping device described in claim 2, since the scraping amount of the glue can be finely adjusted by adjusting the push-down amount of the text sheet bundle, the state of the produced booklet is considered. However, it is possible to adjust the scraping amount to an appropriate amount.

  Furthermore, according to the glue scraping device described in claim 3, the glue scraping surface 2d is formed by forming a plurality of through holes for dropping the glue scraped down on the glue scraping surface of the glue scraping means. It is possible to prevent the glue G from staying on the surface.

  Further, according to the glue scraping device described in claim 4, the glue scraping means has a shape gradually curving downward from the horizontal direction from the base end portion toward the tip end portion, so that the text sheet bundle When the contact is made at the same glue scraping angle θ, the movable area of the glue scraping means can be reduced, and as a result, the pressing amount of the text sheet bundle is reduced, thereby shortening the glue scraping processing time. Can do.

  Further, according to the glue scraping device described in claim 5, the glue of the text sheet bundle is efficiently scraped by the convex portion, and the scraped glue is guided to drop downward by the guiding portion. Therefore, it is possible to prevent the glue from staying on the glue scraping surface. Further, by providing a paper receiving portion between the convex portion and the guiding portion, when the text paper bundle comes into contact with the convex portion, the text paper bundle is prevented from being stuck into the convex portion and the text paper bundle being separated. There is an effect.

It is a schematic block diagram of the bookbinding system in which the glue scraping apparatus which concerns on this invention is mounted. (A) is a schematic block diagram when the glue scraping apparatus of this embodiment is seen from the front, (b) is a schematic block diagram when the same apparatus is seen from the side. It is a functional block diagram in the system. (A) is a figure which shows the example of a form of the through-hole formed in the glue scraping means, (b) is a figure which shows the other example of the form of the through-hole, (c) is a figure in the glue scraping means It is a figure which shows the glue scraping off structure employ | adopted. It is a figure which shows the other example of a form of an adhesive scraping means. It is a figure which shows the relationship between the length of the top-down direction of a text sheet bundle, and the amount of pushing down when it is set as the same glue scraping angle (theta). (A) is a diagram showing a state immediately after glue paper is applied by the glue application device during glue scraping processing, and (b) is immediately after the text paper bundle is moved to the push-down start position during glue scraping processing. It is a figure which shows the state of. (A) It is a figure which shows a state when the text sheet bundle is lowered by a predetermined push-down amount during the glue scraping process, and (b) slides the text sheet bundle in the glue scraping direction during the glue scraping process. It is a figure which shows a state when it moves. (A) It is a figure which shows a state when raising a text sheet bundle after glue scraping off at the time of glue scraping processing, (b) is a state when moving a text paper bundle from which glue has been scraped to a push start position FIG.

  Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the accompanying drawings. In addition, the present invention is not limited by this embodiment, and all other forms, examples, operation techniques, and the like that can be implemented by those skilled in the art based on this form are included in the scope of the present invention. .

  In the present specification, in the following description with reference to the accompanying drawings, when the words “up”, “down”, “left”, and “right” are used to indicate directions and positions, this is shown in FIG. Matches the top, bottom, left, and right.

[1. About system configuration]
First, the configuration of the bookbinding system 100 in which the glue scraping device of the present invention is employed will be described.
As shown in FIG. 1 or FIG. 2, the bookbinding system 100 includes a printing apparatus 110 and a bookbinding apparatus 120. In addition, the bookbinding system 100 shown in FIG. 1 is a system example of a specification in which the printing apparatus 110 is a main apparatus and the bookbinding apparatus 120 is positioned as a peripheral device (post-processing apparatus). However, the printing apparatus 110 and the bookbinding apparatus 120 may each include a control unit.

  The booklet creation job used when creating a booklet in the bookbinding system 100 includes the production conditions of the booklet to be produced (for example, the number of booklets produced, the number of booklet pages, the size information of the text paper P1 and cover paper P2 to be used, the text Print processing information for the paper P1 and the cover paper P2 (for example, printing method information such as double-sided / single-sided printing and printing color information such as monochrome / full color) is included.

  As a method of obtaining this booklet production job, a method of inputting from an external terminal device such as a PC used by a user, a method of inputting via an auxiliary storage device such as a USB memory storing a preset booklet production job, A method for setting a booklet production job from the setting input means provided with various input keys, a touch panel, etc. in this apparatus, and an external server storing preset booklet production job information via a communication network There is a method to input.

<1-1. Printer>
The printing device 110 is a device that performs a predetermined printing process on paper P (text paper P1, cover paper P2) to be a booklet, and then discharges it to the bookbinding device 120.

  More specifically, a plurality of types of paper P (sheet-like paper that becomes the body paper P1 and the cover paper P2) stacked on the paper feed tray 111a inside the housing and the paper feed tray 111b on the side of the housing are fed at a predetermined timing. The paper feeding unit 111 that feeds paper, the paper P transported from the introduction path 112 is transported horizontally by the belt transport mechanism 113c, and the paper P is transported via the first transport path 113a during duplex printing. A transport path 113 composed of a second transport path 113b in the form of a closed loop to be transported, and four inkjet heads C that respectively discharge cyan (C), magenta (M), yellow (Y), and black (K) inks. , K, M, and Y, a printing unit 114 that performs a predetermined printing process on the paper P conveyed on the conveyance path 113, and a first discharge path 115 that discharges the paper P to the bookbinding apparatus 120. The second discharge path 116 that discharges the paper P that has been transported through the second transport path 113b to the paper discharge unit 117 outside the housing and the paper P that has been transported through the second transport path 113b are reversed and then the second paper path P is returned again. 2 is provided with a switchback path 118 that returns to the transport path 113b and reverses the front and back of the paper P.

  Although the inkjet recording apparatus has been described as an example of the configuration of the printing apparatus 110, any desired image can be formed on the printing paper in accordance with the production content of the paper molding to be produced. For example, a stencil printing apparatus Various image forming apparatuses such as a copying machine and a laser printer may be employed.

<About bookbinding equipment>
The bookbinding apparatus 120 is an apparatus that applies a paste to the text sheet P1 printed by the printing apparatus 110, and forms a booklet that is a sheet-like product by binding the cover sheet P2 that is conveyed from another path. It is.

  Specifically, the introduction conveyance path 121 for introducing the printed body paper P1 and the cover paper P2 transported from the printing apparatus 110 and the printed body paper P1 are aligned at the alignment center position. The alignment unit 122 that forms the text sheet bundle PS that has been aligned and reaches a predetermined number of sheets, and the upper bookbinding that branches from the introduction conveyance path 121 and conveys the printed cover sheet P2 and the text sheet P1 to the alignment unit 122 side. A transport path 123, a cover sheet introduction section 124 that temporarily waits for the printed cover sheet P2 transported via the upper bookbinding transport path 123 and introduces the printed cover sheet P2 from the outside at a predetermined timing; Glue application unit (glue application device) that uniformly applies hot melt adhesive G (hereinafter simply referred to as “glue G”) to the back surface of the text sheet bundle PS fed from the alignment unit 122 125) and a moving means 126 for moving the paper bundle PS up, down, left and right in the figure in a state where the paper bundle PS is sandwiched by a pair of clampers 126a that are relatively close to and separated from each other so as to sandwich the text sheet bundle PS for opening and closing driving. In this state, the cover sheet P2 is pressed from the left and right through the cover sheet P2 while the cover sheet P2 is in contact with the back of the sheet sheet bundle PS to which the glue G has been applied, and the cover sheet P2 is bent to form a booklet. A part 127, a lower bookbinding transport path 128 for transporting the cover sheet P2 sent out from the upper bookbinding transport path 123 to the forming section 127, a guide member 129 for guiding the completed booklet falling from the forming section 127, and a guide A booklet that has fallen from the forming unit 127 while passing between the members 129 is discharged and conveyed to the discharge tray 130a.

  The glue scraping device 1 of the present invention is disposed in the vicinity of the glue application unit (glue application device) 125 of the bookbinding apparatus 120, controls the moving means 126, and is pasted on the back by the glue application unit 125. This is a device that scrapes off part of both ends of the glue G applied to the back surface of the text sheet bundle PS by relatively moving the bundle PS and the apparatus 1.

[2. About glue scraping device]
Next, the glue scraping device 1 according to the present invention will be described with reference to FIGS.
The glue scraping device 1 according to the present invention is provided on the downstream side in the moving direction of the text sheet bundle PS in the glue applying device 125, and when the text sheet bundle PS after glue application is moved to the forming unit 127 by the moving means 126. This is a device that scrapes off part of both ends in the longitudinal direction of the glue G applied to the back surface of the text sheet bundle PS.

Here, a schematic configuration of the glue application device 125 on which the glue scraping device 1 of this example is mounted will be described.
Since the glue applying device 125 uniformly applies the glue G to the back surface of the text sheet bundle PS, as shown in FIG. 1 and enlarged in FIGS. A paste storage portion 125a, which is a rectangular parallelepiped container having a substantially arc-shaped cross section with the upper surface opened in the longitudinal direction in FIG. 1 and disposed on the lower right side, and disposed inside the paste storage portion 125a in FIG. A long cylindrical member extending in the front-rear direction is composed of a glue application roller 125b that is rotatably supported by a horizontal rotation shaft that is substantially parallel to the surface of the glue G. The rotating shaft is rotated in a predetermined direction by a driving force of a coating roller driving motor (not shown).

  In addition to the above-described configuration, the glue application device 125 warms the glue remaining amount sensor that detects the liquid level position of the glue G stored in the glue storage section 125a, the glue storage section 11 and the glue application roller 125b itself. A heater (both components not shown) is provided that melts the glue G stored in the glue storage section 125a and maintains the viscosity of the glue G that contacts the outer peripheral surface of the glue application roller 125b.

  In the glue application device 125 having such a configuration, when the text sheet bundle PS is conveyed while being held from the aligning unit 122 by the moving unit 126, the glue application roller 125b is rotated. Then, the back surface of the text sheet bundle PS is brought into contact with the rotating glue application roller 125b to apply the glue G to the entire back surface of the text sheet bundle PS with a predetermined thickness. That is, the text sheet bundle PS is clamped by the clamper 126a from the aligning unit 122, and conveyed to the glue applying device 125 in such a posture that the back surface of the text sheet bundle PS faces vertically downward to perform the glue application processing.

<2-1. About device configuration>
Next, the structure of the glue scraping apparatus 1 which concerns on this invention is demonstrated.
As shown in FIG. 1 or FIG. 2, the glue scraping device 1 is in contact with the back surface of the text sheet bundle PS to which the glue G is applied and scrapes the glue G by a predetermined amount, and the glue G is removed. The moving means 3 for relatively moving the applied text sheet bundle PS and the glue scraping means 2 and part of both ends in the longitudinal direction (vertical direction) of the glue G applied to the back surface of the text sheet bundle PS A control unit 4 that controls the moving means 3 so as to scrape off, and a storage unit 5 that stores various kinds of information necessary for carrying out the glue scraping process.

  The moving means 3 corresponds to the moving means 126 mounted on the bookbinding apparatus 120 described above, but in the following embodiments, a new reference numeral is assigned as one constituent requirement of the glue scraping apparatus 1 of this example. explain.

  In the following embodiment, a configuration in which the glue scraping apparatus 1 includes the control unit 4 will be described. However, since the moving unit 3 and the apparatus 1 are mounted on the bookbinding apparatus 120, the control of the bookbinding system 100 is performed. The unit 140 may be configured to cover the function of the control unit 4.

  The glue scraping means 2 is composed of a pair of plate-like members having a substantially rectangular shape. FIG. 2A is an example in which a pair of left and right glue scraping means 2 are arranged in the casing of the glue applying device 125. As shown in FIGS. 2 (a) and 2 (b), the glue scraping means 2 is inserted into a shaft hole 2b formed at one end thereof with a support shaft 2a fixed to the casing of the glue applicator 125. The shaft 2a is pivotally supported around the support shaft 2a so as to be rotatable downward from the horizontal state (that is, in the depression direction).

This support shaft 2a is arranged along the thickness direction of the text sheet bundle PS outside the longitudinal direction (vertical direction) of the back side of the text sheet bundle PS to which the glue G is applied.
Since the glue scraping means 2 corresponds to all booklet sizes that can be produced by the bookbinding system 100, the support shaft 2a needs to be arranged outside the length of the back surface of the text sheet bundle PS that is the maximum size that can be produced. There is.

  Further, between the shaft hole 2b of the glue scraping means 2, the glue scraping means 2 is rotated in accordance with the downward movement of the text sheet bundle PS, and then the text sheet bundle PS is separated from the glue scraping surface 2d. A biasing means 2c such as a torsion coil spring is mounted so as to bias it back to the horizontal state that is the reference position when it is separated from the center.

  The glue scraping means 2 is maintained in the horizontal direction as the reference position by the biasing means 2c. When the text sheet bundle PS is lowered by a predetermined amount while the corner portions of the text sheet bundle PS are in contact with the glue scraping surface 2d of the glue scraping means 2 in the horizontal state, the movement is followed. Turn downward and tilt in the depression direction. As a result, the angle between the glue scraping surface 2d of the glue scraping means 2 and the corner portion in the vertical direction of the text sheet bundle PS becomes the predetermined glue scraping angle θ. When the corner portions of the text sheet bundle PS in the vertical direction are separated from the glue scraping means 2, the glue scraping means 2 returns to the horizontal state as the reference position by the biasing force of the biasing means 2c.

It should be noted that the glue scraping means 2 of this example is not provided with any special processing, and is moved between the glue scraping surface 2d of the glue scraping means 2 by the moving means 3 and the corner portion in the vertical direction of the text sheet bundle PS. By sliding while the angle is rotated to a predetermined glue scraping angle θ, the glue G can be sufficiently scraped off.
However, for example, as shown in FIGS. 3 (a) and 3 (b), by providing a plurality of through holes 2e, the glue G at the time of scraping is efficiently scraped and the glue scraped off to the glue scraping surface 2d G does not stay and can be dropped downward and returned to the glue reservoir 125a.

  Since the through-hole 2e should just have the function to drop the glue G scraped down, the shape and magnitude | size are not specifically limited. As an example of the through-hole 2e, as shown in FIG. 3A, the thickness direction of the text sheet bundle PS in which the text sheet bundle PS moves when the glue scraping surface 2d is scraped off (hereinafter, this direction is referred to as “glue scraping”). (Referred to as “pick-up direction”), a configuration in which long holes formed along a direction (longitudinal direction of the glue scraping means 2 in the drawing) are juxtaposed along the moving direction of the text sheet bundle PS, FIG. As shown in b), a plurality of holes (circular holes in the figure are uniformly arranged on the glue scraping surface 2d, but the arrangement method is not particularly limited, and the sizes of all the holes are uniform. And the like may be provided.

Moreover, you may employ | adopt the glue scraping structure as shown in FIG.3 (c) other than the form which forms the through-hole 2e mentioned above in the glue scraping surface 2d.
This glue scraping structure includes a plurality of protrusions 2f provided along a direction orthogonal to the direction in which the text sheet bundle PS moves, and glue G provided between the protrusions 2f and scraped off by the protrusions 2f. Is formed by a guide portion 2g for guiding the paper sheet downward and a paper receiving portion 2h that contacts the paper end of the text paper bundle PS when the text paper bundle PS is in contact with the convex portion 2f.

  In this glue scraping structure, the convex portion 2f is formed with a relatively narrow width so that the surface pressure is higher than the planar glue scraping surface 2d when it comes into contact with the glue application portion of the text sheet bundle PS. Therefore, the glue G can be scraped off efficiently. In addition, the guide portion 2g is provided with an inclined surface so as to guide the glue G downward so that the glue G scraped by the convex part 2f is dropped and the glue G does not stay. Further, by providing the paper receiving portion 2h between the convex portion 2f and the guiding portion 2g, when the text paper bundle PS contacts the convex portion 2f, the text paper bundle PS pierces the convex portion 2f and the text paper bundle. It is possible to prevent the PS from falling apart.

  Moreover, the shape of the glue scraping means 2 may be a shape that gradually curves downward from the horizontal direction toward the distal end portion 2j from the end portion (base end portion 2i) on the support shaft 2a side as shown in FIG. . As shown in the figure, when the glue scraping means 2 is in the reference position, it is gradually curved from the base end part 2i toward the tip end part 2j as compared with the glue scraping surface 2d having the planar shape as described above. Therefore, when the text sheet bundle PS is brought into contact with the same glue scraping angle θ, the movable area of the glue scraping means 2 can be made small, so that the amount of pressing down of the text sheet bundle PS is reduced and the glue scraping process is performed. Can be shortened.

  The moving unit 3 corresponds to the moving unit 126 of the bookbinding apparatus 120 described above, and moves the text sheet bundle PS held by the clamper 3a from the aligning unit 122 to the glue applying apparatus 125, and the glue applying apparatus 125 uses the text sheet bundle. Glue G is uniformly applied to the back surface of the PS with a predetermined thickness. A driving mechanism 3b (not shown in detail) composed of a driving motor, a telescopic driving arm, and the like is provided from the control unit 4 to clamp the clamper 3a in the moving means 3 and move the text sheet bundle PS to a predetermined position. This is performed in response to the drive signal.

  The moving means 3 moves the text sheet bundle PS coated with glue G on the back to the pressing start position above the glue scraping means 2, and moves the text sheet bundle PS from this position by a predetermined pressing amount. Each corner of the text sheet bundle PS in the vertical direction so that the angle between the glue scraping surface 2d of the glue scraping means 2 and the corner portion in the vertical direction of the text sheet bundle PS becomes a predetermined glue scraping angle θ. The portion is pressed against the glue scraping surface 2d of the glue scraping means 2. And in this pressed state, it is relatively moved in the glue scraping direction. Thereby, a part of both ends of the longitudinal direction in the glue G applied to the back surface of the text sheet bundle PS is scraped off.

  The pressing start position is above the glue scraping means 2 and when the text sheet bundle PS is moved downward, at least a part of the glue scraping surface of the glue scraping means 2 and the text sheet bundle PS are located. This is the contact position. Further, since the glue scraping means 2 is slid in the glue scraping direction while the glue application portion of the text sheet bundle PS is in contact with the glue scraping means 2, the glue G is scraped off. 2 is preferably located above the end of the glue applicator 125 side.

  The glue scraping angle θ is defined by the pressing amount of the text sheet bundle PS, and the amount of glue G scraped off tends to decrease as the angle increases. Therefore, when the length of the text sheet bundle PS is fixed, the amount of glue G scraped is reduced when the amount of pressing down is increased, and the amount of scraping off of glue G is increased when the amount of pressing down is decreased. Therefore, when the scraping amount of the glue G is finely adjusted, the pressing amount of the text sheet bundle PS may be adjusted.

  Further, when the scraping amount of glue G is made constant, the glue scraping angle θ needs to be made constant, but as the length of the text sheet bundle PS in the vertical direction increases as shown in FIG. Since the place of contact with the glue scraping means 2 shifts from the base end 2i side to the tip end 2j side, the amount of pressing down of the glue scraping means 2 tends to be small.

  As described above, since the pressing amount, the glue scraping angle θ, and the scraping amount of the glue G have the above relationship, the moving unit 3 determines the length in the vertical direction on the back surface of the text sheet bundle PS. Accordingly, it is necessary to lower the text sheet bundle PS by a push-down amount for each text sheet bundle PS derived in advance through experiments or the like so that an appropriate amount of glue G can be scraped off.

  In the present embodiment, the moving means 3 is configured so that the moving means 126 of the bookbinding apparatus 120 is used, and the text sheet bundle PS is moved relative to the glue scraping means 2 fixed to the glue applying apparatus 125. However, the present invention is not limited to this, and the moving means 3 is configured to move the glue scraping means 2, and the glue scraping means 2 may be relatively moved while the body sheet bundle PS is fixed. Good.

  The control unit 4 is configured by a processor such as a CPU (Central Processing Unit), for example, and reads the computer program and various application software stored in the storage unit 5 and performs program processing to control the entire glue scraping device 1 and Arithmetic processing necessary for various processing is executed.

  The control unit 4 stores the text sheet bundle PS coated with the glue G in the storage unit 5 so that the glue scraping unit 2 has a predetermined glue scraping angle θ after moving the text sheet bundle PS to the glue scraping unit 2. Based on the pressing amount information of the corresponding text sheet bundle PS from the size-specific pressing amount information, at least a part of the back side of the text sheet bundle PS (the corner portion of each vertical direction of the text sheet bundle PS) is scraped off. The moving means 3 is controlled so as to be pressed against the means 2 and relatively moved in the glue scraping direction at a predetermined glue scraping angle θ.

Here, the contents of control by the control unit 4 will be described.
The control target of the control unit 4 is moving means 3 that moves the text sheet bundle PS to a predetermined position during the glue scraping process.
The control unit 4 first controls the moving unit 3 to move the text sheet bundle PS applied with the glue by the glue applying device 125 to the push-down start position above the glue scraping unit 2. Further, the control unit 4 searches the pressing amount according to the text sheet bundle PS to be moved from the pressing amount information by size stored in the storage unit 5. Further, the control unit 4 controls the moving unit 3 based on the searched depression amount to lower the text sheet bundle PS. Further, the control unit 4 controls the moving unit 3 to slide along the glue scraping direction in a state where the corner portion in the text sheet bundle PS vertical direction is in contact with the glue scraping surface 2d of the glue scraping unit 2. Let Further, the control unit 4 controls the moving unit 3 to convey the text sheet bundle PS from which the glue G has been scraped off to the subsequent forming unit 127.

  In the present embodiment, the control of the moving unit 3 by the control unit 4 is configured to search the pressing amount of the text sheet bundle PS to be scraped off from the size-specific pressing amount information stored in the storage unit 5. However, when the booklet is produced, a configuration may be adopted in which a pressing amount corresponding to the vertical length of the text sheet bundle PS is set each time.

  The storage unit 5 includes a main storage device including various semiconductor memories such as a ROM (Read Only Memory) and a RAM (Random Access Memory), and an auxiliary storage device such as a flash memory and an HDD (Hard Disk Drive). A computer program and application software necessary for driving each unit of the glue scraping device 1 are stored.

  In addition, the storage unit 5 determines the size information of the text sheet bundle PS (that is, information for sorting the text sheet bundle PS according to the length in the vertical direction) and the glue G according to the size of the text sheet bundle PS. The text defined to be the scraping amount and the pressing amount information from the pressing start position of the sheet bundle PS (that is, the glue scraping surface 2d of the glue scraping means 2 and the top and bottom corners of the text sheet bundle PS) Information on the amount of push-down by size that is linked to a table and stored in a table so that the angle between them becomes a predetermined glue scraping angle θ. .

  Note that the amount of pushdown information by size is information that specifies the pushdown amount according to the length in the vertical direction of the text sheet bundle PS, which has been derived in advance through experiments, etc., but confirms the state of the booklet actually produced. However, when the amount of depression is finely adjusted, it can be updated by rewriting the amount of depression. Further, the pressing amount information for each size may be stored in advance in the storage unit 5 or in a state included in the booklet creation job.

[2-2. About operation]
Next, a series of processing operations in the above-described glue scraping device 1 will be described with reference to FIGS. In addition, the movement means 3 is abbreviate | omitted in each figure.

  First, as shown in FIG. 6 (a), the text sheet bundle PS to which the glue G is applied by the glue applying device 125 is pushed down from the position where the push-down start position is above the glue scraping means 2 as shown in FIG. 6 (b). To move.

Next, a press-down amount corresponding to the text sheet bundle PS to be moved is searched from the press-down information by size stored in the storage unit 5, and based on this press-down amount, the text is shown as shown in FIG. The sheet bundle PS is lowered.
At this time, the text sheet bundle PS gradually approaches the glue scraping means 2 from the pressing start position, and is further lowered in a state where the corner portions in the vertical direction of the text sheet bundle PS are in contact with the glue scraping surface 2d. Thus, as shown in the drawing, the angle between the glue scraping surface 2d of the glue scraping means 2 and the corner portion of the text sheet bundle PS becomes a predetermined glue scraping angle θ.

  Next, as shown in FIG. 7B, the text sheet bundle PS is slid along the glue scraping direction, and part of both ends in the longitudinal direction of the glue G applied to the back surface of the text sheet bundle PS. Scrape off.

  Next, as shown in FIG. 8A, the text sheet bundle PS is raised to the push-down start position. The glue scraping means 2 is rotated to the horizontal state by the urging force of the urging means 2c following the raising operation of the text sheet bundle PS.

  Then, as shown in FIG. 8B, the text sheet bundle PS that has been raised to the pressing start position is moved to the subsequent forming section 127, and the glue scraping process is completed.

  As described above, in the glue scraping device 1 described above, the text paper bundle PS uniformly applied to the back surface with a predetermined thickness in the glue application device 125 is moved to the pressing start position, and the top of the text paper bundle PS is placed. Based on the amount of depression defined according to the length in the direction, the position is lowered from this depression start position. The glue scraping means 2 follows the lowering of the text sheet bundle PS while keeping the corner parts of the descending text sheet bundle PS in contact with each other, and rotates downward so that the corner parts and the glue scraping surface 2d are in contact with each other. In a state where the gap is a predetermined glue scraping angle θ, the text sheet bundle PS is slid in the glue scraping direction, and a part of both ends in the longitudinal direction of the glue G applied to the back surface of the text sheet bundle PS Scrape off.

  Thereby, the glue G can be scraped off by a desired amount out of the glue G applied to the back surface of the text sheet bundle PS without being influenced by the size of the text sheet bundle PS.

  Further, the amount of glue G scraped off (glue scraping angle θ) can be finely adjusted by adjusting the amount of pressing down the text sheet bundle PS. The amount of scraping can be adjusted.

  Further, by forming a plurality of through holes 2e for dropping the glue G scraped down on the glue scraping surface 2d of the glue scraping means 2, it is possible to suppress the glue G from staying on the glue scraping surface 2d. Can do.

  Further, the glue scraping means 2 has a shape gradually curving downward from the horizontal direction from the base end portion 2i toward the tip end portion 2j, so that the text sheet bundle PS is brought into contact with the same glue scraping angle θ. In this case, the movable area of the glue scraping means 2 can be reduced, and as a result, the amount of pressing down of the text sheet bundle PS is reduced, so that the time for glue scraping processing can be shortened.

  Further, by adopting a glue scraping structure on the glue scraping surface 2d of the glue scraping means 2, the width is made relatively narrow so as to increase the surface pressure when contacting the glue application portion of the text sheet bundle PS. The glue G can be efficiently scraped off by the formed convex portion 2f. Further, since the guide 2g guides the glue G downward so that the glue G does not stay by dropping the glue G scraped off by the convex part 2f, the glue stays on the glue scraping surface 2d. Can be prevented. Further, by providing the paper receiving portion 2h between the convex portion 2f and the guiding portion 2g, when the text paper bundle PS contacts the convex portion 2f, the text paper bundle PS pierces the convex portion 2f and the text paper bundle. It is possible to prevent the PS from falling apart.

DESCRIPTION OF SYMBOLS 1 ... Paste scraping apparatus 2 ... Paste scraping means (2a ... Support shaft, 2b ... Shaft hole, 2c ... Biasing means, 2d ... Paste scraping surface, 2e ... Through-hole, 2f ... Convex part, 2g ... Guiding part 2h ... sheet receiving portion, 2i ... base end portion, 2j ... tip end portion)
DESCRIPTION OF SYMBOLS 3, 126 ... Moving means 4 ... Control part 5 ... Memory | storage part 100 ... Bookbinding system 110 ... Printing apparatus 120 ... Bookbinding apparatus 125 ... Glue application part (glue application apparatus)
127: Forming part θ: Glue scraping angle PS: Text paper bundle G: Glue

Claims (5)

In a glue scraping device that scrapes off part of both ends of the glue applied to the back of a stack of text sheets stacked with a plurality of text sheets.
A pair of plate-like members that are pivotally supported so as to be pivotable downward from a horizontal state around a support shaft arranged along the thickness direction of the text paper bundle outside the longitudinal direction of the text paper bundle, Glue scraping means disposed opposite to each other along the longitudinal direction of the text sheet bundle;
Moving means for relatively moving the text sheet bundle to which the glue is applied and the glue scraping means;
At least a part of the back surface of the text sheet bundle is pressed against the glue scraping means to set the glue scraping means to a predetermined glue scraping angle, and the text sheet bundle is set to a predetermined glue scraping angle at the glue scraping angle. A control unit for controlling the moving means to move in the taking direction;
A paste scraping device comprising:   2. The glue scraper according to claim 1, wherein the control unit adjusts and controls a pressing amount of the text sheet bundle to which the glue is applied with respect to the glue scraping unit in accordance with the glue scraping amount. apparatus.   The glue according to claim 1 or 2, wherein a plurality of through holes are provided on the glue scraping surface of the glue scraping means for dropping the glue applied to the text sheet bundle downward. Scraping device.   The glue according to any one of claims 1 to 3, wherein the glue scraping means has a shape gradually curved downward from the horizontal direction from the base end portion on the support shaft side toward the tip end portion. Scraping device. A plurality of convex portions provided at predetermined intervals along the thickness direction of the text sheet bundle on the glue scraping surface of the glue scraping means;
A guide portion provided between the respective convex portions, for guiding the glue scraped off by the convex portions downward;
A paper receiving portion that contacts a paper edge of the paper bundle when the text paper bundle is in contact with the convex portion;
The paste scraping device according to any one of claims 1 to 3, further comprising:

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