JP2016078408A - Bookbinding system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a warm-up time to an adhesive application part.SOLUTION: A bookbinding system 1 binds a book by adhering a cover sheet P2 to a text sheet bundle PS in which text sheets P are bundled for one book, with a hot melt adhesive G, and produces a book by case binding. The bookbinding system comprises: an adhesive application part 40; a control part (73); and a booklet molding part 65. The control part (73) calculates thickness of the text sheet bundle PS for one book, determines an adhesive use amount required for applying the adhesive to a back part PSa of the text sheet bundle PS for one book, according to thickness of the text sheet bundle PS, then, determines a warm-up time (T2) to the adhesive application part 40 required for melting the hot melt adhesive G by the adhesive use amount, then melts the hot melt adhesive G by the adhesive use amount during the determined warm-up time to the adhesive application part, then starts application of the hot melt adhesive Ga which is adhered to an outer peripheral face 42c of an adhesive application roller 42 in a molten state, to the back part PSa of the text sheet bundle PS which is bound initially.SELECTED DRAWING: Figure 6

Description

  In the present invention, a melted hot melt adhesive is applied to the back of a bundle of sheets of a plurality of sheets, and then a cover sheet is adhered to the adhesive-applied sheet bundle to perform case binding. The bookbinding system.

  In general, a bookbinding system applies an adhesive to the back of a bundle of sheets in which a plurality of sheets are bundled, and then binds a cover sheet to the adhesive-coated sheet bundle for bookbinding. Yes.

  As an example of this type of bookbinding system, there is a bookbinding glue device that can increase the bookbinding strength (see, for example, Patent Document 1).

  In the bookbinding glue device disclosed in Patent Document 1 described above, illustration is omitted here, but a bundle of text sheets for one book to be bound (hereinafter referred to as a text sheet bundle) is clamped. A text supply unit that supplies the pasting position of the gluing unit, a text transfer unit, a gluing unit, a cover supplying unit, a cover adhering unit, a cover forming unit, and a booklet discharging unit. Yes.

  Among the above-mentioned means, the gluing means for applying the molten hot melt adhesive to the back of the text sheet bundle is in contact with the housing containing the molten hot melt adhesive and the molten hot melt adhesive in the housing. And a coating roller pressing means for applying a molten hot melt adhesive adhered to the peripheral surface of the coating roller to the back portion of the text sheet bundle. When the application roller is pressed against the back of the text sheet bundle by the application roller pressing means, the application roller is rotated forward and backward within a small angle range to melt and melt the melt melt between the sheets of the text sheet bundle. And a coating roller rotation control means for applying the molten hot melt adhesive to both side portions near the back portion of each sheet of paper bundle.

  More specifically, the gluing means is configured as a heater unit. In this gluing means, a sheet roller for winding a long belt-shaped hot melt sheet, a sheet feed roller for transporting a hot melt sheet unwound from the sheet roller along a predetermined transport path, and a sheet feed roller A heat roller that heats and melts the fed hot melt sheet to a temperature higher than its melting temperature, a housing that stores the hot melt adhesive melted by contact with the heat roller, and a rotation drive mechanism that rotates the heat roller in a predetermined direction And a lift drive mechanism for moving the heat roller up and down, and temperature sensors provided at two locations on the top and bottom of the housing.

  Then, the hot melt adhesive melted by contact with the heat roller in the housing accumulates at the bottom of the housing having an arcuate cross section, adheres to the peripheral surface of the heat roller, and moves from the text receiving position to the gluing position. The molten hot melt adhesive is applied to the back portion of the moved text sheet bundle and the region in the vicinity of the back of each bookbinding sheet of the text sheet bundle.

  As a result, the molten hot melt adhesive can be simultaneously applied to the back portion of the text sheet bundle and both side portions in the vicinity thereof using only a single application roller.

JP 2003-89285 A

  By the way, when the binding apparatus for bookbinding disclosed in Patent Document 1 has reached the initial state, a hot melt adhesive is provided between the bottom of the housing and the peripheral surface of the heat roller in the housing of the pasting means. Is stored in a sufficient quantity so that it can be applied to a bundle of multiple text sheets.

  And since a sufficient amount of hot melt adhesive contained in the housing is cooled and solid, when the bookbinding is started from the initial state of the bookbinding glue device, the heat roller is preheated sufficiently. Warm-up time is required to warm up until a sufficient amount of hot melt adhesive is melted.

  At this time, the warm-up time until all of the hot-melt adhesive contained in the housing of the gluing means is melted becomes long.

  On the other hand, the text supply means can create a text sheet bundle to be bound first immediately from the initial state of the bookbinding glue device, but has to wait for a long warm-up time to the glue means. This is a problem because it takes a long time to bind the text sheet bundle to be bound first from the state.

  In order to solve the above-mentioned problems, a method of shortening the warm-up time to the gluing means by supplying a large amount of power so as to increase the heat amount of the heat roller can be considered, but the heat roller has a large diameter, Another problem occurs such as an increase in power consumption of the bookbinding glue device.

  Therefore, without increasing the heat quantity of the heat roller, the warm-up time for the gluing means (adhesive application part) can be shortened, and the first sheet bundle to be bound can be quickly recovered from the initial state of the bookbinding glue device (bookbinding system). It is an object of the present invention to provide a bookbinding system capable of case binding.

The present invention has been made in view of the above problems, and in a bookbinding system that binds a cover sheet to a sheet bundle obtained by bundling a plurality of sheets by using an adhesive and performs case binding.
An adhesive container that contains the adhesive; an adhesive application roller that rotates while contacting the adhesive in the adhesive container and applies the adhesive to the back of the sheet bundle; and the adhesive An adhesive application unit having a heater for heating the application roller and melting the adhesive in contact with the adhesive application roller;
Adhesion necessary to calculate the thickness of the sheet bundle from the number of pages of the sheet bundle and the thickness of the sheet, and to apply to the back of the sheet bundle corresponding to the thickness of the sheet bundle A controller for determining the amount of agent used, and a controller for determining a warm-up time for the adhesive application portion required to melt the adhesive by the amount of the adhesive used;
A booklet forming unit that forms a booklet in a case binding state by bonding the cover sheet to the sheet bundle that has been adhesive-coated by the adhesive application unit,
In the bookbinding system, the control unit controls the adhesive application roller of the adhesive application unit to start application to the back of the sheet bundle after warming up the warm-up time.

  According to the bookbinding system according to the present invention, in the bookbinding system that binds a cover sheet to a sheet bundle obtained by bundling a plurality of sheets using an adhesive (hot melt adhesive), and performs case binding. An application unit, a control unit, and a booklet forming unit, and the control unit calculates the thickness of one sheet bundle and corresponds to the thickness of the sheet bundle. Determine the amount of adhesive used to apply to the adhesive, and then determine the warm-up time for the adhesive application part required to melt the adhesive by the amount of adhesive used. During the up time, the adhesive is melted for the amount of adhesive used, and the adhesive that adheres to the outer peripheral surface of the adhesive application roller in a molten state starts to be applied to the back of the first bundle of sheets to be bound from the initial state of the bookbinding system. You are in control.

  As a result, the required amount of molten adhesive (molten hot melt adhesive) can be applied in a short time from the initial state of the bookbinding system to the back of the first (first book) sheet bundle. Thus, it is possible to form a booklet bound and bound in a short time from the initial state by adhering a cover sheet to a sheet bundle to which an adhesive has been applied.

It is the block diagram which showed the structure of the bookbinding system which concerns on embodiment of this invention. (A), (b) is the perspective view and II sectional drawing which expanded and showed the adhesive agent application part in the bookbinding apparatus shown in FIG. It is the flowchart which showed operation | movement of the bookbinding system which concerns on embodiment of this invention. It is the figure which showed the relationship between the thickness of a text sheet bundle, and the usage-amount of the hot-melt-adhesive required for booklet shaping | molding. It is the figure which showed the relationship between the warm-up time to an adhesive application part, and the usage-amount of the hot-melt-adhesive required for booklet shaping | molding. (A)-(c) is the figure which showed operation | movement of the adhesive agent application part.

  Hereinafter, an embodiment of a bookbinding system according to the present invention will be described in detail with reference to FIGS.

  FIG. 1 shows the configuration of a bookbinding system according to an embodiment of the present invention. In FIG. 1, when viewed from the user, the vertical and horizontal directions are the vertical and horizontal directions.

  As shown in FIG. 1, the bookbinding system 1 according to the embodiment of the present invention is roughly composed of a personal computer PC that performs information processing, a printing device 10 that performs printing processing, and a bookbinding device 30 that performs bookbinding processing. Since these apparatuses PC, 10 and 30 are installed in the above order, they will be specifically described in the following order.

  In FIG. 1, a path indicated by a bold line is a sheet conveyance path through which the sheet P is conveyed in the printing apparatus 10 and the bookbinding apparatus 30.

(About PC PC)
The above-described personal computer PC edits the text image information and the cover image information for printing on the paper P (P1, P2) and sends them to the printing apparatus 10.

(About the printing apparatus 10)
The printing apparatus 10 is configured as a printing unit that selectively prints text image information and cover image information on a text sheet P1 and a cover sheet P2, respectively. In the printing apparatus 10 of this embodiment, an inkjet printing method is applied, but the present invention is not limited to this, and a laser printing method, a thermal transfer printing method, or the like is also applicable.

  The printing apparatus 10 includes a printing paper transport unit 12, an operation panel unit 13, an internal paper feeding unit 14 and an external paper feeding unit 17, a belt platen unit 21, an ink jet printing unit 23, a paper discharge unit 25, The paper reversing unit 27 and the printing control unit 28 are provided in the printing apparatus casing 11 formed in a box shape.

  Here, each part in the printing apparatus 10 will be specifically described.

  First, the printing paper transport unit 12 in the printing apparatus 10 performs a paper feed path RS indicated by a two-dot chain line, a normal path RC indicated by a solid line, a paper discharge path RD indicated by a long broken line, and double-sided printing indicated by a one-dot chain line. Inversion route RR and a communication route RJ indicated by a short broken line.

  At this time, the loop-shaped sheet conveyance path connected to the sheet feeding path RS is formed in a loop shape along the periphery of the inkjet printing unit 23 by combining the normal path RC and the reverse path RR, and the normal path RC. A communication path RJ for selectively sending the printed text sheet P1 and cover sheet P2 to the bookbinding apparatus 30 is formed.

  The printing paper transport unit 12 in the printing apparatus 10 includes a plurality of paper transport roller pairs that transport the paper P (P1, P2) and a plurality of flippers that switch the transport direction of the paper P at appropriate positions. Yes. In the following description, upstream and downstream mean upstream and downstream in the printing paper transport unit 12.

  Next, the operation panel unit 13 is provided in an upper part of the printing apparatus casing 11. Various buttons for performing a print job and a bookbinding job, a numeric keypad, a display panel, and the like are attached to the operation panel unit 13.

  Next, the internal paper feed unit 14 that feeds the text sheet P <b> 1 has a plurality of internal paper feed trays 15 provided in the lower left portion of the printer housing 11. In the internal paper feed unit 14, a plurality of internal paper feed trays 15 formed according to the paper size of the text paper P1 are divided in the vertical direction and can be pulled out toward the front of the paper surface. A plurality of body sheets P1 are stacked on the sheet 15 for each sheet size. Each of the plurality of internal paper feed trays 15 can detect the paper size.

  Then, one internal paper feed tray 15 is selected by the user's operation on the operation panel unit 13, and the topmost text paper P1 among the plurality of text papers P1 stacked on the internal paper feed tray 15 is selected. After the sheets are fed one by one by the internal sheet feeding roller 16, the sheet is fed from the sheet feeding path RS to the normal path RC at a constant sheet conveyance speed, and the main body sheet is fed by the registration roller pair 20 provided upstream of the normal path RC. The skew of P1 is corrected.

  Next, the external paper feed unit 17 that feeds the cover paper P <b> 2 is provided with the external paper feed tray 18 partially exposed to the outside of the left side surface of the printing apparatus casing 11. In the external paper feeding unit 17, a plurality of cover sheets P <b> 2 that are at least twice as long as the length of the body paper P <b> 1 in the transport direction are stacked on the external paper feed tray 18. The external paper feed tray 18 can also detect the paper size.

  Only when there is a print command for the cover sheet P2, the top cover sheet P2 among the plurality of cover sheets P2 stacked on the external sheet feed tray 18 is fed one by one by the external sheet feed roller 19. After that, the skew feeding of the cover sheet P2 is corrected by the registration roller pair 20 which is sent from the sheet feeding path RS to the normal path RC at a constant sheet conveyance speed and provided on the upstream side of the normal path RC.

  Next, the belt platen unit 21 and the inkjet printing unit 23 are provided at a substantially central portion of the printing apparatus casing 11 so as to face each other with the normal route RC interposed therebetween, and inkjet printing is performed above the belt platen unit 21. Part 23 is installed.

  The belt platen unit 21 described above is downstream of the normal path RC at a constant sheet conveyance speed while sucking the text sheet P1 or the cover sheet P2 sent from the registration roller pair 20 onto the rotatable endless belt platen 22 with air. to be sending.

  The above-described inkjet printing unit 23 applies cyan (C), black (K), magenta (M), and yellow (Y) inks to the body paper P1 and cover paper P2 mounted on the endless belt platen 22. Text image information and cover image information are printed in color using the line-type inkjet heads 24C, 24K, 24M, and 24Y that discharge.

  Next, the paper discharge unit 25 is provided at an upper portion of the left side surface of the printing apparatus casing 11. In the paper discharge unit 25, among the papers P printed by the ink jet printing unit 23, the printed paper P that is not bound is stacked on the upper surface 26a of the paper discharge tray 26 installed on the most downstream side of the paper discharge path RD. Yes.

  Next, the sheet reversing unit 27 is also provided in the upper part of the left side surface of the printing apparatus casing 11. In the paper reversing unit 27, the single-side printed paper P enters the switchback guide 26b formed on the back side of the paper discharge tray 26 through the loop-shaped normal route RC and the reverse route RR, and the paper P The leading end in the transport direction is switched, and the front and back of the paper P are reversed by the loop path. Thereafter, the reversed paper P is subjected to double-sided printing by the inkjet printing unit 23 through the registration roller pair 20 again.

  Next, the print control unit 28 is provided at an appropriate location in the printing apparatus casing 11. The print control unit 28 controls the printing apparatus 10 as a whole, and transmits and receives various types of information to and from the bookbinding control unit 73 provided in the bookbinding apparatus 30 described later. Further, the print control unit 28 includes a ROM, a RAM, a counter, a timer, and the like.

  In the printing apparatus 10 configured as described above, single-sided printing or double-sided printing can be selectively performed in color for the body paper P1 and the cover paper P2, and a plurality of printed body papers P1 are printed. The cover sheet P2 can be selectively supplied to the bookbinding apparatus 30.

(About the bookbinding apparatus 30)
The bookbinding apparatus 30 forms a text sheet bundle PS by bundling a plurality of text sheets P1 printed in the printing apparatus 10 in the bookbinding apparatus 30 and forms the text sheet bundle PS on the back PSa of the text sheet bundle PS. After the melted hot melt adhesive Ga {enlarged illustration in FIG. 6 (b)} is applied, the cover sheet P2 is adhered to the adhesive-coated text sheet bundle PS, thereby performing the case binding. ing.

  In addition, the bookbinding apparatus 30 includes a bookbinding paper transport unit 32, a text paper alignment unit 33, a text paper clamp unit 38, an adhesive application unit 40, a cover paper cut unit 60, a booklet molding unit 65, and a booklet guide. A member 68, a booklet discharge unit 70, and a bookbinding control unit 73 are provided in a bookbinding apparatus housing 31 formed in a box shape.

  Here, each part in the bookbinding apparatus 30 is demonstrated concretely.

  First, the bookbinding sheet conveyance unit 32 in the bookbinding apparatus 30 includes an introduction path RI indicated by a two-dot chain line connected to a communication path RJ in the printing apparatus 10, a vertical conveyance path RV indicated by a solid line, and a text sheet indicated by a broken line. It consists of a route RH and a cover sheet set route RF indicated by a one-dot chain line.

  In the bookbinding paper conveyance unit 32 of the bookbinding apparatus 30, a plurality of paper conveyance roller pairs for conveying the paper P (P1, P2) and a plurality of flippers for switching the conveyance direction of the paper P are installed at appropriate positions. Yes. In the following description, upstream and downstream mean upstream and downstream in the bookbinding paper transport unit 32.

  Next, in the text sheet aligning unit 33, an aligning tray 34 is provided in the upper left part of the bookbinding apparatus housing 31. In the text sheet aligning unit 33, printed text sheets that are sent on the alignment tray 34 from the communication path RJ of the printing apparatus 10 via the introduction path RI, the vertical conveyance path RV, and the text sheet path RH of the bookbinding apparatus 30. Only one copy of P1 is loaded.

  At this time, the alignment tray 34 regulates the leading end portion of the text sheet P1 in the sheet conveyance direction at the time of standing and regulates the leading end fence 35 that opens forward and the trailing end portion of the text sheet P1 in the sheet conveyance direction and the text. The trailing edge fence 36 that moves back and forth in the paper transport direction according to the length of the paper P1 in the paper transport direction and the paper width direction that is orthogonal to the paper transport direction of the text paper P1 to restrict both sides in the width direction By being surrounded by a pair of side fences 37, the position of the plurality of text sheets P1 is regulated by the respective fences 35 to 37, so that one text sheet bundle PS is formed.

  At this time, the front end portion of the text sheet P1 in the sheet conveyance direction becomes the back part PSa of one text sheet bundle PS formed on the alignment tray 34 by bundling a plurality of the text sheets P1.

  Next, the text sheet clamp unit 38 includes a pair of clamp plates 39 that clamp the text sheet bundle PS stacked on the alignment tray 34 by sandwiching the sheet stack PS up and down. The pair of clamp plates 39 sequentially convey the text sheet bundle PS mounted on the alignment tray 34 to the adhesive application unit 40 and the booklet forming unit 65 by a clamp plate moving mechanism unit (not shown).

  At this time, the pair of clamp plates 39 face downward so that the back part PSa of the text sheet bundle PS faces the adhesive application part 40 and the booklet forming part 65 while moving to the adhesive application part 40, and the text While holding the text sheet bundle PS so that both side surfaces PSb of the sheet bundle PS are substantially parallel to the vertical direction, the sheet bundle PS is conveyed in order to the adhesive application unit 40 and the booklet forming unit 65.

  Next, the adhesive application unit 40 is provided at an intermediate portion in the height direction of the bookbinding apparatus casing 31 on the right side in the bookbinding apparatus casing 31. This adhesive application unit 40 applies ethylene vinyl acetate (EVA) -based molten hot melt adhesive Ga {FIG. 6B} to the back PSa of the text sheet bundle PS clamped by the pair of clamp plates 39. It has a function.

  In the adhesive application section 40, as shown in an enlarged view in FIGS. 2A and 2B, an adhesive container 41 is formed long along the width direction of the text sheet bundle PS, and An inner bottom portion of the adhesive container 41 is formed in an arcuate cross section to store the hot melt adhesive G.

  In the adhesive container 41, the hot melt adhesive G is cooled and stored in a solid state (a sufficient amount of adhesive necessary for forming a plurality of booklets PB described later).

  Further, in the adhesive container 41, an adhesive application roller 42 having a long annular shape along the width direction of the text sheet bundle PS and having a hollow inside is formed on both ends 42a and 42b in the longitudinal direction. The adhesive container 41 is rotatably supported in a state of being exposed to the outside of both end faces 41a and 41b in the longitudinal direction.

  At this time, the large-diameter gear 43 is fixed to the end portion 42a exposed to the outside of the end surface 41a of the adhesive container 41 in the adhesive application roller 42, and the shaft of the first motor M1 is attached to the large-diameter gear 43. Since the pinion gear 44 fixed to is engaged, the adhesive application roller 42 is rotatable.

  A heater 45 is built in the center of the adhesive application roller 42. The heater 45 has a function of warming the adhesive application roller 42 and melting the hot melt adhesive G in contact with the outer peripheral surface 42 c of the adhesive application roller 42.

  Further, an adhesive amount regulating plate 46 is provided between the inner surface of the adhesive container 41 and the adhesive application roller 42, and an excessive amount of the adhesive amount regulating plate 46 is used when the adhesive application roller 42 rotates. The hot melt adhesive G is restricted from being applied to the text sheet bundle PS.

  A first temperature sensor 47 for measuring the temperature of the adhesive application roller 42 is attached near the outside of the end surface 41 a of the adhesive container 41, and hot in the longitudinal center of the adhesive container 41. A second temperature sensor 48 for measuring the temperature of the melt adhesive G is attached. At this time, by measuring the first and second temperature sensors 47 and 48, it is possible to prevent the hot melt adhesive G stored in the adhesive container 41 from rising to an abnormal temperature.

  In the adhesive application unit 40 having the above-described configuration, the adhesive application roller 42 rotates while contacting the hot melt adhesive G in the adhesive container 41 and melts via the heater 45. Is applied to the back PSa of the text sheet bundle PS.

  Further, as shown only in FIG. 2 (b), an ethylene vinyl acetate (EVA) -based hot melt sheet 52 is formed in a long strip shape on a reel 51 installed via a shaft 50 on the right side of the adhesive container 41. It is wound. This hot melt sheet 52 is prepared for replenishment to the hot melt adhesive G accommodated in the adhesive container 41.

  Then, the hot melt sheet 52 wound around the reel 51 is caused to enter the adhesive container 41 while being nipped and conveyed by the driving roller 53 driven by the second motor M2 and the driven roller 54 driven by the driving roller 53. In the initial stage, the hot melt adhesive G is cooled at the inner bottom of the adhesive container 41 and is stored in a sufficient amount in a solid state.

  In this embodiment, the hot melt sheet 52 is used as the hot melt adhesive G accommodated in the adhesive container 41. However, the hot melt adhesive 52 is not limited to this. For example, a pellet-shaped hot melt adhesive G is used. May be used.

  Returning to FIG. 1, as will be described in the later-described operation, an ethylene vinyl acetate (EVA) -based hot-melt adhesive Ga {FIG. 6 (b)} is applied to the back portion PSa of the text sheet bundle PS by the adhesive application unit 40. Is applied to the booklet forming section 65 by a pair of clamp plates 39.

  Next, the cover sheet cutting unit 60 is provided at the lower left portion in the bookbinding apparatus housing 31. In the cover sheet cutting unit 60, one end of the printed cover sheet P2 sent from the communication path RJ of the printing apparatus 10 via the introduction path RI and the vertical conveyance path RV of the bookbinding apparatus 30 is used as a sheet sensor 61. The number of output pulses of the encoder 62 attached to the paper conveyance roller is counted from the time point detected in step S1, and when the number of output pulses reaches a value calculated in advance, one end side of the cover paper P2 is cut by the cutter 63. Thus, the cover sheet P2 is cut into a predetermined length.

  At this time, the predetermined length of the cover sheet P2 is cut to a length that can be bound and bound on both side surfaces PSb of the text sheet bundle PS in accordance with the thickness of the text sheet bundle PS calculated in an operation described later. Then, the cover sheet P2 cut by the cover sheet cut unit 60 is sent to the booklet forming unit 65 via the vertical conveyance path RV and the cover set path RF.

  Next, the booklet forming unit 65 is provided with an abutting plate 66 movably in the left-right direction at a substantially central portion in the bookbinding apparatus casing 31 and an adhesive provided on the right side of the booklet forming unit 65. The coating unit 40 and the bookbinding apparatus housing 31 are provided with their height directions substantially aligned.

  The booklet forming unit 65 has a function of forming the booklet PB by bending the cover sheet P2 in a state where the back part PSa of the text sheet bundle PS is in contact with the cover sheet P2.

  Further, in the booklet forming unit 65, a pair of back folding plates 67 are provided on the abutting plate 66 so as to be movable in the left-right direction so as to stand close to each other and separate from each other.

  Then, after the cover sheet P2 sent from the cover sheet cut section 60 is mounted on the pair of back folding plates 67, the hot melt adhesive Ga melted by the adhesive application section 40 is disposed above the center of the cover sheet P2. The applied text sheet bundle PS is conveyed while being clamped by a pair of clamp plates 39.

  Subsequently, the cover sheet P2 is centered on the text sheet bundle PS by abutting the adhesive-coated text sheet bundle PS on the butting plate 66 via the cover sheet P2 and raising the pair of back folding plates 67. The booklet PB for one book is formed on the abutting plate 66 by being folded into the case binding state.

  Further, the booklet PB for one book is moved to the right together with the abutting plate 66, and the pair of back folding plates 67 are opened, and the booklet PB for one booklet is discharged through the booklet guide member 68. The part 70 is dropped.

  Next, the booklet discharge unit 70 is provided at a lower portion in the bookbinding apparatus housing 31. The booklet discharge unit 70 receives the booklet PB dropped from the booklet forming unit 65 via the booklet guide member 68 on an endless belt 72 wound between a pair of pulleys 71, and rotates the endless belt 72 clockwise. The booklet PB is discharged to the outside of the bookbinding apparatus housing 31.

  Next, the bookbinding control unit 73 is provided at an appropriate location in the bookbinding apparatus housing 31. The bookbinding control unit 73 controls the bookbinding apparatus 30 as a whole, and transmits and receives various types of information to and from the print control unit 28 provided in the printing apparatus 10 as described above. Further, the bookbinding control unit 73 includes a ROM, a RAM, a counter, a timer, and the like. Note that the bookbinding control unit 73 can be incorporated into the print control unit 28 of the printing apparatus 10 without providing the bookbinding control unit 73 in the bookbinding apparatus housing 31.

  Here, operation | movement of the bookbinding system 1 which concerns on embodiment of this invention comprised as mentioned above is demonstrated using FIG.1 and FIG.2 used previously, and new FIGS. 3-6.

  FIG. 3 shows an operation flow of the bookbinding system 1 according to the embodiment of the present invention. FIG. 4 shows the relationship between the thickness of the text sheet bundle and the amount of hot melt adhesive used for booklet forming. FIG. 5 shows the relationship between the warm-up time for the adhesive application part and the amount of hot melt adhesive used for booklet forming. Further, FIGS. 6A to 6C show the operation of the adhesive application unit.

  As shown in FIG. 3, when the bookbinding system 1 according to the embodiment of the present invention starts operating when the bookbinding system 1 has reached the initial state, the user operates the operation panel unit 13 on the bookbinding system 1 in step S1 to perform a print job. / Instruct to execute either bookbinding job.

  At this time, when the bookbinding system 1 is in the initial state, the operations of the printing apparatus 10 and the bookbinding apparatus 30 are stopped, and the hot melt bonding accommodated in the adhesive container 41 of the adhesive application unit 40 is performed. It is assumed that the agent G is cold and in a room temperature state.

  Further, it is assumed that the print job executes only printing on the paper P in the printing apparatus 10 as usual. On the other hand, the bookbinding job prints a plurality of body sheets P1 and cover sheets P2 for bookbinding in the printing apparatus 10, and then binds the bookbinding apparatus 30 to the plurality of printed body sheets P1 and cover sheets P2. It is assumed that case binding is executed in the inside.

  When the user operates the operation panel unit 13 to execute one of the print job / bookbinding job, operation information on the operation panel unit 13 is transmitted to the print control unit 28 / bookbinding control unit 73, respectively.

  Next, in step S2, the print control unit 28 asks whether or not to bind. If the print control unit 28 determines in step S2 that bookbinding is not performed by a print job operation on the operation panel unit 13 (NO), only the print job is executed in step S3.

  In this print job, the paper P fed by the internal paper feeding unit 14 or the paper P fed by the external paper feeding unit 17 is printed in color on one side or on both sides by the inkjet printing unit 23, and printed paper. P is sequentially discharged and stacked on the paper discharge tray 26 in the paper discharge unit 25, and then the print job is completed in step S4.

  On the other hand, when it is determined in step S2 that the print control unit 28 performs bookbinding by a bookbinding job operation on the operation panel unit 13 (in the case of YES), in step S5, the print control unit 28 and the bookbinding control unit 73 are used for bookbinding. A bundle of text sheets on the alignment tray 34 in the bookbinding apparatus 30 from the start of feeding the text sheet P1 in the printing apparatus 10 in accordance with the number of pages input for printing one sheet of text paper P1. A time T1 for forming a PS (text sheet bundle forming time) is calculated.

  The text sheet bundle forming time T1 can be calculated from a constant sheet transport speed, a sheet transport distance from the paper feed position to the alignment tray 34, and the number of pages of the text sheet bundle PS.

  The text sheet bundle application position arrival time T1 may be calculated instead of the text sheet bundle formation time T1, and the text sheet bundle application position arrival time T1 is calculated from the paper feed position via the alignment tray 34. The time required for the sheet bundle PS to reach the adhesive application unit 40 may be used.

  Next, in step S <b> 6, the print control unit 28 calculates the thickness of the text sheet bundle PS for one book and notifies the bookbinding control unit 73 of the calculated result. It is also possible to calculate the thickness of the text sheet bundle PS. At this time, the thickness of the text sheet bundle PS is calculated by multiplication using the number of pages of the text sheet bundle PS and the thickness of one text sheet P1 stored in a RAM (not shown) according to the paper size. .

  Next, in step S7, the bookbinding control unit 73 stores the required amount of hot melt adhesive G in the RAM of the bookbinding control unit 73 according to the thickness of the text sheet bundle PS calculated in step S6. This is obtained from the first table TB1 (FIG. 4). At this time, as shown in FIG. 4, the amount of hot melt adhesive G required for booklet forming on one booklet sheet bundle PS increases in proportion to the thickness of one booklet sheet bundle PS. Therefore, the usage amount is stored as a table in the RAM.

  Returning to FIG. 3, next, in step S <b> 8, the bookbinding control unit 73 attaches the current temperature of the hot melt adhesive G stored in the adhesive container 41 of the adhesive application unit 40 to the adhesive container 41. When measured by the temperature sensor 48 and the measurement result is normal temperature, it is confirmed that the adhesive application unit 40 has reached the initial state. Since the heater 45 is in an off state at the initial stage of the adhesive application unit 40, the first temperature sensor 47 for measuring the temperature of the heater 45 is prepared for reference.

  Next, in step S9, when the bookbinding control unit 73 confirms that the current temperature of the hot melt adhesive G measured in step S8 is the normal temperature in the initial state, the booklet control unit 73 obtains one copy of the text sheet bundle obtained in step S7. The second table TB2 at normal temperature in which the warm-up time T2 to the adhesive application unit 40 required to melt the hot melt adhesive G by the amount of adhesive used for PS is stored in the RAM of the bookbinding control unit 73 (see FIG. It is obtained from 5).

  At this time, as shown in FIG. 5, the warm-up time T2 to the adhesive application unit 40 increases in a curved line with respect to the amount of hot melt adhesive G required for booklet forming. Are stored in a table in the RAM.

  When the current temperature of the hot melt adhesive G is lower than the normal temperature, the value of the second table TB2 at the normal temperature is multiplied by a coefficient larger than 1 set for each low temperature to warm up. Time T2 becomes longer than that at room temperature. On the other hand, when the current temperature of the hot melt adhesive G is higher than the normal temperature, the value of the second table TB2 at the normal temperature is multiplied by a coefficient smaller than 1 set for each high temperature. Time T2 is shorter than at normal temperature.

Next, in step S10, the bookbinding control unit 73 compares the above-described text sheet bundle forming time T1 with the above-described warm-up time T2, and asks whether T2 ≦ T1. When the bookbinding control unit 73 determines in step S10 that T2 ≦ T1 (in the case of YES), the warm-up time T2 to the adhesive application unit 40 is shorter than the text sheet bundle formation time T1. Therefore, in step S11, the bookbinding control unit 73 immediately starts warming up the adhesive application unit 40 and starts feeding the text sheet P1 necessary for bookbinding substantially simultaneously.

  On the other hand, when the bookbinding control unit 73 determines that T2 ≦ T1 is not satisfied in step S10 (in the case of NO), the warm-up time T2 to the adhesive application unit 40 is longer than the text sheet bundle formation time T1. In step S12, the bookbinding control unit 73 immediately starts warming up the adhesive application unit 40 and starts feeding the text sheet P1 necessary for bookbinding with a delay of (T2-T1) time.

  Then, after step S11 or step S12 is executed, the bookbinding control unit 73 in step S13 counts with a timer from the start of warm-up to the adhesive application unit 40, and after T2 time has elapsed, the text sheet to be bound first from the initial state. Application of the melted hot melt adhesive Ga is started on the back PSa of the bundle PS.

  Next, in step S14, the bookbinding control unit 73 transports the adhesive-coated text sheet bundle PS to the booklet forming unit 65, where the cover sheet P2 is adhered to the adhesive-applied text sheet bundle PS. Case binding and forming a booklet PB.

  Next, in step S15, the bookbinding control unit 73 discharges the formed booklet PB to the outside of the bookbinding apparatus housing 31.

  Then, the hot hot melt adhesive melt adhesive Ga melted without any trouble can be applied to the next text sheet bundle PS to be bound after the first book.

  Here, in the above-described step S13, the operation of applying the melted hot melt adhesive Ga to the back portion PSa of the text sheet bundle PS to be bound first after the adhesive application portion 40 in the bookbinding apparatus 30 has reached the initial state. Will be further described in detail with reference to FIGS.

  First, as shown in FIG. 6A, when the adhesive application part 40 has reached the initial state, the hot melt adhesive G is cooled in the adhesive container 41 and is in a solid state with a sufficient amount. Contained. Further, the heater 45 built in the center of the adhesive application roller 42 in the adhesive container 41 is turned off.

  When the heater 45 is turned on from this initial state and the warm-up to the adhesive application unit 40 is started, as described above in the background art, the hot melt adhesive G stored in a sufficient amount in the adhesive container 41. It takes a long time to warm up the adhesive application unit 40 until all the sheets are melted, and it takes a long time from the initial state of the bookbinding system 1 to bookbinding the text sheet bundle PS to be bound first.

  Therefore, in the present embodiment, as shown in FIG. 6B, the heater 45 is turned on to melt the hot melt adhesive G stored in the adhesive container 41 from the initial state of the bookbinding system 1, and the first is performed. When the adhesive application roller 42 is rotated clockwise (in the direction of the arrow) by the motor M1, the outer peripheral surface 42c of the adhesive application roller 42 is immediately warmed.

  At this time, as previously described, if the warm-up time T2 to the adhesive application unit 40 is obtained in advance for the amount of hot melt adhesive G required for booklet molding, the inside of the adhesive container 41 Among the hot melt adhesive G contained in a sufficient amount, the hot melt adhesive G in contact with the outer peripheral surface 42c of the adhesive application roller 42 is adhesive during the warm-up time T2 determined in advance by the warmed outer peripheral surface 42c. The molten hot melt adhesive Ga adheres to the outer peripheral surface 42c of the adhesive application roller 42 after being melted by the amount used.

  That is, the bookbinding control unit 73 melts the hot melt adhesive G by the amount of adhesive used during the warm-up time T2 to the obtained adhesive application unit 40, and melts it on the outer peripheral surface 42c of the adhesive application roller 42. The hot melt adhesive Ga adhering to the above is controlled so as to start application from the initial state of the bookbinding system 1 to the back portion PSa of the text sheet bundle PS to be bound first.

  As a result, the necessary amount of hot melt adhesive Ga can be applied in a short time from the initial state of the bookbinding system 1 to the back part PSa of the first (first book) text sheet bundle PS. The cover sheet P2 is bonded to the text sheet bundle PS to which the adhesive has been applied, and the booklet PB bound and bound can be formed in a short time from the initial state.

  Further, as shown in FIG. 6C, when the time has elapsed after the melted hot melt adhesive Ga is applied to the back portion PSa of the first text sheet bundle PS, the heater 45 is turned on so that the adhesive is applied. Since the hot melt adhesive G in contact with the outer peripheral surface 42c of the roller 42 continues to melt gradually further toward the inner bottom of the adhesive container 41, there is no problem with the next text sheet bundle PS of the first book. It is possible to apply the molten hot melt adhesive Ga.

  As described above in detail, when bookbinding is performed using the bookbinding system 1 according to the present invention, in this embodiment, the case of binding with binding the cover sheet P2 to the printed text sheet bundle PS has been described. However, this is not a limitation, and illustration is omitted here. However, in the case of a notebook or the like, it is also possible to bind and bind a cover sheet by bonding a cover sheet to a bundle of plain sheets that are not printed. Is possible.

  In this case, the bookbinding system (not shown) includes a sheet supply device (not shown) for supplying one sheet of paper and a cover sheet, and a bookbinding device (the same configuration as the bookbinding device 30 of the present embodiment). It may be composed of

  Then, when the bookbinding system has reached the initial state, the bookbinding control unit calculates the thickness of one sheet bundle and applies it to the back of one sheet bundle corresponding to the thickness of the sheet bundle. To determine the amount of adhesive used, and to determine the warm-up time for the adhesive application part required to melt the hot melt adhesive by the amount of the adhesive used. During the up time, the hot melt adhesive is melted by the amount of adhesive used, and the hot melt adhesive that has adhered to the outer peripheral surface of the adhesive application roller in a molten state is used for the first bundle of sheets to be bound from the initial state of the bookbinding system. What is necessary is just to control to start application | coating to a back part.

1 ... Bookbinding system,
DESCRIPTION OF SYMBOLS 10 ... Printing apparatus, 11 ... Printing apparatus housing | casing, 12 ... Printing paper conveyance part,
13 ... operation panel unit, 14 ... internal paper feeding unit, 17 ... external paper feeding unit,
20 ... Registration roller pair, 21 ... Belt platen part, 23 ... Inkjet printing part,
25: paper discharge unit, 27: paper reversing unit, 28 ... print control unit,
30 ... Bookbinding device, 31 ... Bookbinding device housing, 32 ... Bookbinding paper transport unit,
33 ... Text sheet alignment unit, 34 ... alignment tray,
38 ... Text sheet clamp part, 39 ... A pair of clamp plates,
40 ... Adhesive application part, 41 ... Adhesive container,
42 ... Adhesive application roller, 42a, 42b ... end, 42c ... outer peripheral surface,
45 ... heater, 46 ... adhesive amount regulating plate,
47 ... 1st temperature sensor, 48 ... 2nd temperature sensor, 60 ... Cover sheet paper cut part,
65 ... booklet forming part, 66 ... butting plate, 67 ... a pair of back folding plates,
68 ... Booklet guide member, 70 ... Booklet discharge unit, 73 ... Bookbinding control unit,
G ... hot melt adhesive, Ga ... molten hot melt adhesive,
P ... paper, P1 ... text paper, P2 ... cover paper,
PS ... text sheet bundle, PSa ... back of the text sheet bundle, PSb ... both sides of the text bundle,
PB ... booklet, PC ... computer,
T1... Time from the start of feeding the text sheet to the time when the text sheet bundle is formed on the alignment tray in the bookbinding apparatus (text sheet bundle forming time). T2. Warm-up time to the adhesive application unit.

Claims (1)

In a bookbinding system in which a cover sheet is bonded to a sheet bundle obtained by bundling a plurality of sheets using an adhesive, and case binding is performed.
An adhesive container that contains the adhesive; an adhesive application roller that rotates while contacting the adhesive in the adhesive container and applies the adhesive to the back of the sheet bundle; and the adhesive An adhesive application unit having a heater for heating the application roller and melting the adhesive in contact with the adhesive application roller;
Adhesion necessary to calculate the thickness of the sheet bundle from the number of pages of the sheet bundle and the thickness of the sheet, and to apply to the back of the sheet bundle corresponding to the thickness of the sheet bundle A controller for determining the amount of agent used, and a controller for determining a warm-up time for the adhesive application portion required to melt the adhesive by the amount of the adhesive used;
A booklet forming unit that forms a booklet in a case binding state by bonding the cover sheet to the sheet bundle that has been adhesive-coated by the adhesive application unit,
The bookbinding system, wherein the controller controls the adhesive application roller of the adhesive application unit to start application on the back of the sheet bundle after warming up the warm-up time.

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