JP2018015905A - Bookbinding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To produce a bookbound article capable of preventing a cover from jumping out of the small port side end of a book body even when covers are sequentially added to book bodies different in thickness.SOLUTION: This bookbinding device is provided with: a cover forming unit 9 that forms covers Q one by one by cutting an original cover Oalong the vertical direction thereof; a cover adding unit 4 that sticks a cover Q formed by the cover forming unit 9 to a book body P; and a control unit 10 that controls the cover forming unit 9 on the basis of a length s between the small port side end and the backside end of the book body P and the thickness t of the book body P. The cover forming unit 9 cuts the original cover Qso that the length L of the cover Q in a small port direction can be larger twice than the length s between the small port side end and the backside end of the book body P to which the cover Q is stuck and equal to or less than the sum (L≤2s+t) of the thickness t of the book body P to which the cover Q is stuck.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a bookbinding apparatus that produces a bookbinding product by attaching a cover to the body.

  A bookbinding apparatus that performs a perfect binding process applies glue to the back of the body with a glue unit, and attaches a cover to the body with a cover unit to produce a bookbinding product (for example, Patent Document 1). Next, the bookbinding product is sent to a three-way cutting device. The three-way cutting device cuts the top portion, the ground portion, and the fore edge portion of the bookbinding product to finish the bookbinding product to a predetermined size.

  In recent years, the demand for variable binding has increased, and book bodies having different thicknesses may be sequentially processed. The bookbinding apparatus includes a cover sheet supply unit that supplies the cover sheets one by one to the cover attachment unit, and covers of the same size are stacked on the mounting table of the cover sheet supply unit. Therefore, when the thickness of the main body is small, a bookbinding product R is produced in which the edge portion of the cover Q protrudes from the edge portion of the body P as shown in FIGS. 8A and 8B. As is clear from a comparison between FIG. 8A and FIG. 8B, the protruding portion of the cover sheet Q becomes longer as the thickness of the body P is smaller.

  When such a bookbinding product R is cut by the three-way cutting device disclosed in Patent Document 2, there is a possibility of causing the following problem. In the three-way cutting apparatus of Patent Document 2, as shown in FIG. 9A, the bookbinding product R is sent from the side with a pusher 50 to the edge cutting unit for cutting the edge of the bookbinding product R by pressing from the side. , The back part comes into contact with the stopper 51. At this time, the protruding portion of the cover Q is turned up above the pusher 50.

  The fore edge cutting portion includes an edge holding plate 52 that presses the edge of the bookbinding product R from above when cutting with the edge cutting blade. When the fore edge pressing plate 52 presses the fore edge of the bookbinding product R in a state where the protruding portion of the cover Q is turned up above the pusher 50, the cover Q is bent as shown in FIG. 9A. As a result, the cover of the bound book after cutting protrudes from the edge of the small edge of the main body, resulting in a poor finished book.

  Further, as shown in FIG. 9B, a plurality of bookbinding products R having the same size may be stacked, pressed by the pusher 50 toward the stopper 51, and then cut together. However, in the variable bookbinding, when the bookbinding product R is pushed by the pusher 50, the protruding portion of the cover sheet Q is in the way, so such a cutting process cannot be performed.

Japanese Patent No. 5713510 JP 2013-230530 A

  An object of the present invention is to provide a bookbinding apparatus capable of producing a bookbinding product in which a cover does not jump out from a small edge side end portion of the body even when sequentially attaching the bodies having different thicknesses.

  The present invention relates to a bookbinding apparatus for producing a bookbinding product composed of a body and a cover attached to the body. The bookbinding device includes a cover forming unit that cuts the original cover along its top and bottom to form the cover one by one, a cover attaching unit that attaches the cover formed by the cover forming unit to the body, A control unit that controls the cover sheet forming unit based on a length between a fore edge and a back edge of the main body and a thickness of the main body. The cover sheet forming unit is controlled by the control unit so that the length of the cover sheet in the fore edge direction is 2 between the length of the back side end portion and the fore edge side end portion of the body to which the cover sheet is attached. The original cover is cut so as to be equal to or less than the sum of the thickness of the body to which the cover is pasted.

  The bookbinding apparatus may further include a measurement unit for measuring the thickness of the body, and the control unit may control the cover forming unit based on the thickness of the body measured by the measurement unit. .

  The cover forming unit includes a slit mechanism that cuts along the transport direction of the base cover while transporting the base cover, and a moving mechanism that moves the slit mechanism in a perpendicular direction that is perpendicular to the transport direction and horizontal. , May be provided. The control unit determines the cutting position in the orthogonal direction where the slit mechanism cuts the original cover according to the length between the back side end portion of the main body and the edge side end portion, and the thickness of the main body. Determine based on. The slit mechanism is moved by the moving mechanism to the cutting position determined by the control unit.

  The two slit mechanisms may be provided at intervals in the orthogonal direction. The moving mechanism moves the two slit mechanisms independently in the orthogonal direction. The control unit determines the cutting position of each of the slit mechanisms.

  The bookbinding apparatus may further include an original cover supply unit that supplies the original cover one by one from the stack of original covers placed on the placement table to the cover sheet forming unit.

  According to the present invention, the cover forming unit cuts the original cover according to the thickness of the main body and the length between the main edge side end portion and the back side end portion of the main body, and the front edge corresponding to the main body. A cover having a length in the direction is formed from the original cover. As a result, even when the covers having different thicknesses are sequentially attached, the cover attachment unit can attach the cover to the main body so that the edge part of the cover does not protrude from the edge part of the body. As a result, the quality of the bookbinding product in the cutting process is guaranteed.

1 is a perspective view schematically showing a bookbinding apparatus according to an embodiment of the present invention. 2A and 2B are schematic side views for explaining the measurement operation of the measurement unit. 3A and 3B are schematic side views for explaining the measurement operation of the measurement unit. 4A is a front view schematically showing the cover sheet forming unit, and FIG. 4B is a side view of FIG. 4A. FIG. 5A is a perspective view showing the body, and FIG. 5B is a plan view for explaining a state in which the original cover is cut and a cover is formed. FIG. 6A is a plan view for explaining a state in which the cover forming unit determines a position to cut (slit) the original cover. FIG. 6A shows a case where the body thickness is large, and FIG. 6B shows a case where the body thickness is small. Indicates. 7A and 7B are side views showing a bookbinding product produced by the bookbinding apparatus according to the present invention. 8A and 8B are side views showing an example of a bookbinding product produced by a conventional bookbinding apparatus. 9A and 9B are side views for explaining problems in the cutting process.

  Hereinafter, a bookbinding apparatus according to an embodiment of the present invention will be described. As shown in FIG. 7, the bookbinding apparatus is a perfect binding apparatus that sequentially produces a bookbinding product R including a main body P and a cover Q attached at least on the back of the main body P.

  The overall configuration of the bookbinding apparatus will be described with reference to FIG. The bookbinding apparatus includes one or more clampers 1 (four in the embodiment) that are movably arranged along a predetermined path K. The clamper 1 includes a pair of clamp plates 1a and 1b for clamping the body P.

  In the embodiment, the path K of the clamper 1 connects the horizontal upper and lower linear path portions Ka and Kb spaced apart in the vertical plane and the ends of these path portions Ka and Kb. It has a loop shape composed of arcuate path portions Kc and Kd.

  Although not shown, appropriate guides are provided along the path K. The clamper 1 is slidably attached to the guide and is moved in one direction (counterclockwise in FIG. 1) along the path K by a known drive mechanism.

  The bookbinding apparatus includes a series of processing units 2, 3, and 4 for performing a perfect binding process. The series of processing units includes a milling unit 2, a gluing unit 3, and a cover attaching unit 4 arranged along the portion Kb of the path K. The cover attaching unit 4 includes a pair of nip plates 4a and 4b and a bottom plate 4c. A body receiving position M is provided on the upstream side of the series of processing units 2, 3, 4 in the portion Kb of the path K.

  The bookbinding apparatus includes a body supply unit 5 that sequentially supplies the body P to the clamper 1 on one side of the body receiving position M with respect to the portion Kb of the path K. In the embodiment, the body P having a different thickness t (see FIG. 5A) is supplied to the clamper 1 by the body supply unit 5. The bookbinding apparatus includes a measurement unit 6 for measuring the thickness t of the body P before the body P is supplied by the body supply unit 5.

  The path K is provided with a bookbinding product discharge position N for discharging the bookbinding product R produced by the series of processing units 2, 3, and 4. In the embodiment, the body receiving position M also serves as the bookbinding discharge position N. And the bookbinding product discharge unit 7 for discharging the bookbinding product R which fell from the bookbinding product discharge position N to the exterior of a bookbinding apparatus is provided.

The bookbinding apparatus includes an original cover sheet supply unit 8 and a cover sheet forming unit 9. Hara Cover supply unit 8 supplies a raw cover Q ₀ which is the source of the cover Q, the cover forming unit 9 is conveyed in the conveying direction X of a stack of original cover Q ₀ placed on the table 8a one by one To do. As described in detail below, the cover forming unit 9 cuts the original cover Q ₀ along the top and bottom directions, forms the cover Q one by one, and supplies the cover Q to the cover attaching unit 4.

The bookbinding apparatus includes a control unit 10 that controls at least the raw cover sheet supply unit 8 and the cover sheet forming unit 9. The control unit 10 includes a processor, a storage medium, and the like. The control unit 10 controls the base cover supply unit 8 to control the supply of the base cover Q _{0 to} the cover forming unit 9. Further, the control unit 10 controls the cover forming unit 9 based on the length s (see FIG. 5A) between the edge side end portion and the back side end portion of the body P and the thickness t of the body P. Control.

  The thickness measuring unit 6 will be described with reference to FIGS. Since this measurement unit 6 has the same configuration as that of Patent Document 1, only its schematic configuration will be described. Referring to FIG. 2, the measurement unit 6 includes a downward U-shaped base 11 and a reference plate 12 fixed to the upper surface of the base 11. The reference plate 12 has a vertical reference surface 12a.

  The guide rail 13 is supported on the side surface of the base 11 and extends at a right angle to the reference surface 12a. The movable body 14 is attached to the guide rail 13 so as to be slidable in a direction approaching or separating from the reference plate 12. The measuring body 15 is disposed in the internal space of the movable body 14 and is slidably attached to the guide rail 13. A coil spring 16 is disposed in a compressed state in the internal space of the movable body 14, and constantly presses the measurement body 15 against the movable body 14 in the direction toward the reference plate 12.

  The measurement body 15 has an extended portion 15 a that protrudes upward from the upper surface of the base 11, and the extended portion 15 a is provided with a measurement surface 15 b that faces the reference surface 12 a of the reference plate 12. Although not shown in the drawings, guide holes extending along the guide rails 13 are formed in the base 11 and the movable body 14 in order to allow the extension portion 15a to approach and separate from the reference plate 12. .

  The measurement unit 6 includes a movable body moving mechanism for sliding the movable body 14. The movable body moving mechanism includes a pair of pulleys 17, a timing belt 18 that is spanned between the pulleys 17 and connected to the movable body 14, a motor 19 that is connected to the rotation shaft of one pulley 17, and the like. Become. One pulley 17 is rotationally driven by a motor 19 so that the movable body 14 slides.

  The measurement unit 6 includes a distance measurement mechanism that measures the movement distance of the measurement surface 15b relative to the reference surface 12a with the position where the measurement surface 15b of the measurement body 15 contacts the reference surface 12a of the reference plate 12 as a zero point. . The distance measuring mechanism includes a pair of pulleys 20 and a timing belt 21 that is spanned between the pulleys 20 and to which the measuring body 15 is connected. Further, the distance measuring mechanism includes a rotary encoder 22 that is connected to the rotation shaft of one pulley 20, converts the rotation amount of the pulley 20 into a moving distance of the measuring surface 15 b of the measuring body 15, and outputs the moving distance.

  The measurement unit 6 further includes a first sensor 23 and a second sensor 24. The first sensor 23 includes, for example, a photoelectric sensor, is attached to the base 11 or the reference plate 12, and detects that the body P is placed in front of the reference surface 12 a of the reference plate 12. Although not shown, a detection window is formed in the reference plate 12 at a position corresponding to the detection unit of the first sensor 23.

  The second sensor 24 detects that the measurement body 15 is separated from the side surface of the movable body 14 by a predetermined distance against the elastic force of the coil spring 16. The second sensor 24 includes a proximity sensor, and is attached to the upper surface of the movable body 14 such that the detection unit faces upward. On the other hand, a metal plate 25 is attached to the upper surface of the measuring body 15. The metal plate 25 is close to the detection unit of the second sensor 24 and is detected by the second sensor 24 when the measurement body 15 is separated from the side surface of the movable body 14 by a predetermined distance.

  On both sides of the upper surface of the base 11 in the direction perpendicular to the guide rails 13, slip promotion plates 26 (only one is shown) are attached. Each of the promotion plates 26 extends along the guide rail 13.

The measurement by the measurement unit 6 is performed as follows.
Before the start of measurement, the measurement surface 15b of the measurement body 15 is at an initial position that is a maximum distance away from the reference surface 12a of the reference plate 12 (see FIG. 2A). Then, the body P is placed in front of the reference surface 12a so as to block the detection portion of the first sensor 23, and is supported in an upright state by the operator's hand. When the body P is detected by the first sensor 23, the measurement unit 6 operates the movable body moving mechanism. Thereby, the movable body 14 starts a sliding movement toward the reference plate 12.

  In the middle of the sliding motion of the movable body 14, the body P is pushed by the measurement surface 15b of the measurement body 15 toward the reference surface 12a until it is sandwiched between the reference surface 12a and the measurement surface 15b without any gap (see FIG. 2B). At this time, the thick body P is pushed and moved smoothly by the action of the slip promotion plate 26.

  At this position, the measuring body 15 cannot move further toward the reference plate 12 by the measurement surface 15b coming into contact with the body P. On the other hand, the movable body 14 continues the sliding motion after that. Thereby, the measuring body 15 is gradually separated from the side surface of the movable body 14 while the coil spring 16 is gradually compressed (see FIG. 3A).

When the measurement body 15 is separated from the movable body 14 by a predetermined distance and the metal plate 25 of the measurement body 15 is detected by the second sensor 24 of the movable body 14 (see FIG. 3B), the measurement unit 6 moves the movable body. Stop the mechanism. Thereby, the movable body 14 stops. Then, the thickness t of the body P is measured by the moving distance measuring means. The measurement value data is sent from the measurement unit 6 to the control unit 10.
The measurement unit 6 is not limited to the above embodiment.

The cover forming unit 9 will be described with reference to FIG. The cover forming unit 9 includes a slit mechanism 30 that cuts the original cover Q ₀ along the transport direction X while transporting the base cover Q ₀ in the transport direction X. Here, the original cover Q ₀ is conveyed to the original cover supply unit 8 and the cover forming unit 9 so that the vertical direction is parallel to the conveyance direction X. Therefore, the original cover Q ₀ is cut along the top-and-bottom direction by the cover forming unit 9.

  In the embodiment, two slit mechanisms 30 are provided, and are arranged at a distance from each other in a perpendicular direction Y that is perpendicular to the transport direction X and horizontal. Each of the slit mechanisms 30 includes a pair of circular slitters 31 provided in the vertical direction, a pair of rollers 32 attached to each slitter 31, and a pair of support members 33 that support the slitter 31 and the rollers 32. .

  The cover sheet forming unit 9 includes a moving mechanism 34 that moves the two slit mechanisms 30 independently in the orthogonal direction Y. The moving mechanism 34 is controlled by the control unit 10. The moving mechanism 34 includes a pair of slide shafts 36 that are supported by the frame 35 and extend in the orthogonal direction Y and are spaced apart from each other in the vertical direction. Each of the support members 33 is slidable with respect to the slide shaft 36.

  The cover sheet forming unit 9 includes a feed screw 37 extending in the orthogonal direction Y. As shown in FIG. 4B, two feed screws 37 are provided with a gap in the transport direction X. For each feed screw 37, a motor 38 for rotating the feed screw 37 in the forward and reverse directions is provided. A gear 39 is provided to transmit the rotational output of the motor 38 to the feed screw 37. Each motor 38 is electrically connected to the control unit 10.

The nut portion 40 of the support member 33 of one slit mechanism 30 is screwed to one feed screw 37, and the nut portion 40 of the support member 33 of the other slit mechanism 30 is screwed to the other feed screw 37. doing. Thereby, each slit mechanism 30 is moved in the orthogonal direction Y by forward and reverse rotation of the associated feed screw 37. Thus, two slit mechanism 30 are each independently in the orthogonal direction Y (i.e., small direction of the original cover Q ₀ being transported) is moved to.

  The cover sheet forming unit 9 includes a drive mechanism 41 that drives both the slit mechanisms 30. The drive mechanism 41 includes a spline 43 that is rotatably supported by the frame 35 via a bearing 42 and extends in the orthogonal direction Y, and a motor 44 that rotates the spline 43. In order to transmit the rotational output of the motor 44 to the spline 43, the drive mechanism 41 includes a pair of pulleys 45 and a timing belt 46 that is stretched between them. The spline 43 is engaged with the lower roller 32 of the slit mechanism 30, and the lower roller 32 is rotated by the rotation of the spline 32. The upper roller 32 in contact with the lower roller 32 is rotated by the rotation of the lower roller 32. As a result, the pair of upper and lower slitters 31 of both slit mechanisms 30 are rotated.

When the original cover Q ₀ is conveyed from the original cover supply unit 8 to the cover forming unit 9, the original cover Q ₀ is introduced between the pair of upper and lower rollers 32 and is conveyed in the conveyance direction X by the pair of rollers 32. Then, the original cover Q ₀ is cut along the transport direction X (that is, the top-to-bottom direction) by the pair of slitters 31 during the transport. As a result, as in FIG. 5B, from the original cover Q _0, the cover Q, and, Kas Q 'on both sides of the cover Q is formed. The residue Q ′ is dropped from the conveyance path, and only the cover sheet Q is sent to the cover sheet pasting unit 4 (FIG. 1).
The cover sheet forming unit 9 is not limited to the above.

  Next, the bookbinding process of the bookbinding apparatus according to the present invention will be described. First, the thickness t of the body P is sequentially measured by the measurer using the measurement unit 6. The measured thickness t is sequentially stored in the storage medium of the control unit 10. As shown in FIG. 1, after the measurement, the body P is placed on the body supply unit 5 by the operator and is sequentially transported to the body receiving position M by the body supply unit 5.

  The body P is inserted between the pair of clamp plates 1a and 1b of the clamper 1 at the body receiving position M, and is clamped by the clamp plates 1a and 1b so that the back faces downward. Then, the body P is moved along the path K and sent to the milling unit 2.

  The milling unit 2 has a milling cutter, and the body P is cut by the milling cutter while the body P passes over the milling cutter. Thereafter, the body P clamped by the pair of clamp plates 1 a and 1 b is sent to the gluing unit 3.

  The gluing unit 3 includes a tank for storing the gluing, a gluing roller, a roller for wiping off excess gluing, and the like, and glues the back of the body P with an appropriate thickness. Thereafter, the body P clamped by the pair of clamp plates 1 a and 1 b is sent to the cover attaching unit 4.

  The cover attaching unit 4 attaches the cover Q supplied from the cover forming unit 9 to at least the back of the body clamped by the pair of clamp plates 1a and 1b. Here, the control unit 10 controls the cover forming unit 9 based on the length s and the thickness t of the main body P, and has a length L (see FIG. 5B) that matches the main body P. A cover sheet Q is formed and supplied to the cover attaching unit 4.

  The control unit 10 refers to the storage medium and recognizes the thickness t of the body P to be attached by the cover attaching unit 4. In the embodiment, since the size of the sheet constituting the body P supplied to the bookbinding apparatus is constant, the length s is constant and known. As shown in FIG. 1, a reference line C extending in the transport direction X from the original cover supply unit 8 to the cover attachment unit 4 is defined. This reference line C is aligned with one of the back edges of the body P clamped at the cover attaching position of the cover attaching unit 4.

  The control unit 10 determines the cutting positions in the orthogonal direction Y of the two slit mechanisms 30 based on the thickness t and the length s of the body P with reference to the reference line C. Specifically, as shown in FIG. 6, the control unit 10 moves the cutting position Da of one slit mechanism 30 from one side in the orthogonal direction Y from the reference line C (from the back edge line of the body P aligned with the reference line C). It is determined at a position s + t away from the other edge line). The control unit 10 determines the cutting position Db of the other slit mechanism 30 as a position away from the reference line C in the orthogonal direction Y by s. Then, the moving mechanism 34 of the cover sheet forming unit 9 is controlled by the control unit 10 to move the two slit mechanisms 30 to the determined cutting positions Da and Db, respectively.

Then, the original cover Q ₀ is supplied from the original cover supply unit 8 to the cover forming unit 9. Accordingly, the original cover Q ₀ is cut by the slit mechanism 30 to form the cover Q. The cover Q is the sum of the length s of the body P to be pasted and the thickness t in the edge direction. It has a length L. That is, a cover Q that satisfies L = 2s + t is formed.

  The formation of the cover Q is performed on each body P sequentially supplied to the cover attaching unit 4. Therefore, as is apparent from the comparison between FIG. 6A and FIG. 6B, even when the main body P having different thicknesses t is sequentially bound and bound as in the variable binding step, the length L in the fore edge that matches the main body P is obtained. A cover sheet Q having “” is sequentially formed by the cover sheet forming unit 9.

  Then, the cover sheet Q is conveyed onto the pair of nip plates 4a, 4b and the bottom plate 4c, and the portion corresponding to the back of the cover sheet Q and the back of the main body P clamped at the cover attachment position face each other. Then, the pair of nip plates 4a, 4b and the bottom plate 4c are raised, and the cover sheet Q is pressed against the back of the body P on which the paste is applied by the bottom plate 4c. At the same time, the pair of nip plates 4a and 4b are moved in a direction approaching each other, and the main body P and the cover sheet Q are sandwiched from both sides. Thereby, the cover Q is attached to the main body P, and a bookbinding product R as shown in FIG. 7A is produced.

  The length of the cover Q in the fore edge direction is L = 2s + t, and the cutting positions Da and Db are determined with reference to the reference line C as described above. The cover is attached to the main body P by the cover attaching unit 4 so that the end portion does not protrude from the end portion on the small edge side of the main body P and is aligned with the end portion on the small edge side.

  Then, the bookbinding product R clamped by the clamper 1 passes through the portion Ka in a posture that is upside down through the portion Kc of the path K, and stops at the bookbinding product discharge position N through the portion Kd. When the clamper 1 releases the clamp of the bookbinding product R, the bookbinding product R falls onto the bookbinding product discharge unit 7. Thereafter, the clamper 1 clamps the new body P supplied from the body supply unit 5.

  The bookbinding product discharge unit 7 discharges the bookbinding product R to the outside of the bookbinding apparatus. Thereafter, the bookbinding product R is cut by a three-way cutting device and finished to a predetermined size.

  According to the above-described embodiment, even when the book bodies P having different thicknesses t are sequentially bound, the edge side end portion of the cover Q in the bookbinding product R does not jump out of the body P. Therefore, there is no problem of defective finishing of the bookbinding product R in the cutting process as shown in FIG. 9A, and as a result, the finish of the bookbinding product R is always guaranteed. Further, a cutting process for stacking and cutting a plurality of bookbinding products R having the same size as shown in FIG.

  Hereinafter, although preferable embodiment of this invention was described, this invention is not limited to said embodiment.

  In the above embodiment, the thickness t of each main body P is measured by the measurement unit 6. Instead of this, the control unit 10 may acquire the thickness t of the main body P from an external device (for example, a collating device that forms the main body P, which is arranged in front of the bookbinding device). Further, the thickness t of the body P may be acquired by an input through an input unit (for example, a touch panel) by an operator.

In the above embodiment, the body P having the same thickness s and the same length s is sequentially attached to the cover. However, the bookbinding apparatus according to the present invention also applies to the case where the body P having the different length s is sequentially attached. Yes. In this case, the measurement unit 6 has a configuration for measuring the length s, and the control unit 10 acquires the length s of each body P from the measurement unit 6. In addition, the length s may be acquired from an external device or may be acquired by an input through an input unit by an operator.
Of course, the bookbinding apparatus of the present invention can cope with the case where the body P having different thicknesses t and lengths s are sequentially attached.

  In the embodiment described above, the cover sheet Q having the length L = 2s + t in the fore edge direction is formed, but the cover sheet Q having a length L in the fore edge direction of the cover sheet Q of less than 2 s + t is formed (that is, L < 2s + t), the cover sheet forming unit 9 may be controlled by the control unit 10. In the bound product R produced in this case, the edge side end portion of the cover Q is retracted from the edge side end portion of the body P as shown in FIG. 7B. However, since the edge part of the front edge of the cover Q does not protrude from the main body P, the problem of finishing as described in the prior art does not occur in the cutting process, and the bookbinding product R can be appropriately finished by the cutting process. it can.

4 Covering unit 6 Measuring unit 8 Original cover supply unit 8a Placement table 9 Cover forming unit 10 Control unit 30 Slit mechanism 34 Moving mechanism Da One cutting position Db The other cutting position P Body Q Cover Q ₀ Original cover R Bookbinding t Body thickness s Length L between body edge and back edge L Length of edge of cover X Front cover / cover transport direction Y Direction perpendicular to transport direction

Claims (5)

A bookbinding apparatus for producing a bookbinding product comprising a body and a cover attached to the body,
A cover forming unit that cuts the original cover along its top and bottom to form the cover one by one;
A cover attaching unit for attaching the cover formed by the cover forming unit to the body;
A control unit for controlling the cover sheet forming unit based on the length between the edge side end portion and the back side end portion of the main body, and the thickness of the main body,
The cover sheet forming unit is controlled by the control unit,
The length in the fore edge direction of the cover is twice the length between the fore edge and the back edge of the body to which the cover is attached, and the thickness of the body to which the cover is attached. Cutting the original cover so that it is less than or equal to
A bookbinding apparatus characterized by that. A measuring unit for measuring the thickness of the body,
The control unit controls the cover forming unit based on the thickness of the body measured by the measurement unit.
The bookbinding apparatus according to claim 1. The cover forming unit is
A slit mechanism that cuts along the conveying direction of the original cover while conveying the original cover;
A moving mechanism that moves the slit mechanism in a perpendicular direction that is perpendicular to the transport direction and horizontal, and
The controller is
The cutting position in the orthogonal direction at which the slit mechanism cuts the original cover is determined based on the length between the back side end and the fore edge of the main body, and the thickness of the main body,
The slit mechanism is
Moved by the moving mechanism to the cutting position determined by the control unit;
The bookbinding apparatus according to claim 1 or 2, characterized by the above. The two slit mechanisms are provided at an interval in the orthogonal direction,
The moving mechanism is to move the two slit mechanisms independently in the orthogonal direction,
The control unit determines the cutting position of each of the slit mechanisms;
The bookbinding apparatus according to claim 3. A base cover supply unit that supplies the base cover one by one from the stack of base covers placed on the mounting table to the cover forming unit;
The bookbinding apparatus according to any one of claims 1 to 4, wherein the bookbinding apparatus.

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