JP5631672B2 - Booklet page turning device - Google Patents

Description

  Embodiments of the present invention relate to, for example, a booklet page turning apparatus that is provided in a booklet printing machine and automatically turns pages of a booklet.

  In this type of page turning device, a page turning roller is brought into contact with the upper surface of the page to be turned and rotated to cause the page to buckle and be flipped up on the page turning roller. It is known that a page that is flipped up on a turning roller is carried over by being conveyed.

  By the way, recently, as a part of high added value, a booklet with a page with high bending rigidity has appeared. However, in the above-mentioned flip-up method using a turning roller, it is not possible to page a page with high bending rigidity. It was difficult.

  Therefore, the vacuum pad is moved by sucking the uppermost rigid page of the booklet with a vacuum pad and moving the vacuum pad. There has been developed a type in which the uppermost page is turned over by releasing the negative pressure suction after the abutting roller provided and causing the booklet to be nipped and conveyed by the abutting roller and the conveying roller.

  In this turning apparatus, the main purpose is to freely fold a booklet whose cover or inner paper is highly rigid. However, it is a matter of course that a booklet composed only of flexible pages can be processed.

JP 2009-279925 A

  However, even with the above-described method using the vacuum pad, if the booklet is composed of pages with more flexible paper characteristics or if the number of pages is smaller and the rigidity of the entire booklet is low, the page cannot be turned well. was there.

In order to solve the above-described problems, the embodiment is configured such that the booklet is conveyed to the page turning position along the conveyance path, and is pressed against the upper and lower surfaces of the booklet conveyed to the page turning position by the conveyance unit. The upper and lower vacuum pads for vacuum suction, the driving means for moving the upper vacuum pad to open the booklet page in the direction to open the page around the binding, and the predetermined angle lifted The contact roller portion entering the lower side of the page, and after the contact roller portion enters the lower side of the page, the vacuum suction of the upper and lower side vacuum pads is released to release the upper side of the page. A control means for controlling the vacuum pad to retract from the uppermost page to the retracted position, transport the booklet and bring the page into contact with the contact roller portion, and provided at the page turning position; , The book A conveyance guide body that guides conveyance of the sheet and a support body provided in the vicinity of the conveyance guide body, and the conveyance guide body and the support body are pressed against the booklet by the upper vacuum pad. In this case, the lower side of the booklet is supported so that the booklet does not bend and deform, and the conveying means includes upper and lower conveying rollers disposed vertically through the conveying path at the page turning position, and the page. And a guide body that guides the booklet transport, and the transport guide body at the page turning position has an upstream side and a downstream side. The top of the lower conveying roller is disposed above the guide body by a predetermined distance. The top of the lower conveying roller protrudes from the conveying guide body, and the amount of the protrusion is determined by the upper conveying roller coming into contact with the upper surface of the booklet. The booklet is Greater than NIP volume biting into the top portion of the conveying roller parts side.

The block diagram which shows the page turning apparatus of the booklet which is 1st Embodiment. The perspective view which shows the pinch roller of the page turning apparatus of FIG. 1, an impeller, and its drive system. The perspective view which shows the vacuum pad and its drive system of the page turning apparatus of FIG. The figure which shows the movement locus | trajectory of the vacuum pad of FIG. The block diagram which shows the drive control system of the page turning apparatus of FIG. The figure which shows the state by which the booklet was conveyed to the page turning position of the page turning apparatus of FIG. The figure which shows the state which the cover of the booklet conveyed to the turning position of FIG. 6 was lifted with the vacuum pad. The figure which shows the state which the pinch roller approached into the lower part side of the cover sheet lifted by the vacuum pad of FIG. The figure which shows the state in which a booklet is conveyed from the state which the pinch roller approached to the lower part side of the cover of FIG. FIG. 10 is a diagram illustrating a state in which a cover is brought into contact with a pinch roller and rolled down by conveying the booklet of FIG. 9. FIG. 11 is a diagram illustrating a state where the cover of FIG. 10 is completely rolled over and opened. FIG. 12 is a diagram illustrating a state in which the cover sheet completely turned over in FIG. 11 is lifted in a reverse turn direction by a vacuum pad. FIG. 13 is a diagram illustrating a state in which a pinch roller has entered the lower side of the cover that is lifted in FIG. 12. FIG. 14 is a diagram illustrating a state where the cover is in contact with a pinch roller that has entered the lower side of the cover in FIG. 13. FIG. 15 is a diagram illustrating a state where the cover that is in contact with the pinch roller in FIG. 14 is largely rotated in the reverse turning direction. FIG. 12 is a perspective view showing a state where the booklet with the cover opened in FIG. 11 is sent to the page turning position and the intermediate paper is turned. The figure which shows the state which looked at FIG. 16 from the arrow A direction. The figure which shows the state which looked at FIG. 16 from the arrow B direction. FIG. 17 is a perspective view showing a state in which the intermediate paper is lifted by the upper vacuum pad from the state of FIG. 16. The figure which shows the state which looked at FIG. 19 from the arrow A direction. The figure which shows the state which looked at FIG. 19 from the arrow B direction. The figure which shows the isolation | separation operation | movement of step 1 by the impeller of the page turning apparatus which is 2nd Embodiment. The figure which shows the isolation | separation operation | movement of step 2 by the impeller of FIG. The figure which shows the page turning apparatus which is 3rd Embodiment.

Hereinafter, embodiments will be described with reference to the drawings.
(First embodiment)
FIG. 1 is a configuration diagram illustrating a booklet page turning apparatus according to a first embodiment.

  In the figure, reference numeral 1 denotes a transport path for transporting the booklet T. The transport path 1 includes a plurality of transport rollers 2a to 2d as transport means and a booklet T at predetermined intervals along the transport direction of the booklet T. Detection sensors 4a to 4d for optical detection are arranged. As shown in FIG. 2, the booklet T includes a high-rigidity cover Ta and a flexible intermediate paper Tc.

  Pinch rollers 2 a ′ and 2 d ′ are in rolling contact with the upper surface portions of the transport rollers 2 a and 2 d, and the transport rollers 2 b and 2 c are arranged at the page turning position 5. The transport rollers 2a to 2d are rotationally driven by a transport roller drive motor 26 shown in FIG.

  Abutment feed mechanisms 20A and 20B are disposed on the upper side of the transport rollers 2b and 2c, respectively. On the upper side of the page turning position 5, there is provided a page lifting detection sensor 19 for optically detecting a page attracted and lifted by a pair of vacuum pads 10a.

  Further, a page number detection sensor 24 is provided in the vicinity of the contact feed mechanism 20B as detection means for detecting the page number of the turned page. The above-described detection sensors 4a to 4d, page lift detection sensor 19 and page number detection sensor 24 are connected to a control unit 40 as control means via a signal circuit as shown in FIG.

  On the other hand, the contact feed mechanism 20A includes a pinch roller 21a as a second contact roller portion. The pinch roller 21a is attached to the shaft 6 as shown in FIG. 2, and an impeller 22a is attached to the shaft 6 in the vicinity of the pinch roller 21a. In this impeller 22a, a plurality of flexible hitting plates are radially arranged on the peripheral surface portion, and the hitting plate is brought into contact with the booklet T when rotating, so that the page on the lower side of the page to be beaten is knocked down. It has become.

  FIG. 2 shows a drive system for the pinch roller 21a and the impeller 22a.

  The shaft 6 is rotatably supported by a support bracket 7, and one end side of the shaft 6 protrudes outward from the support bracket 7. The projecting portion of the shaft 6 is connected to a pinch roller drive motor (shown in FIG. 5) 9 via a drive belt 8, and the pinch roller 21a and the impeller 22a are moved in the forward and reverse directions by the drive of the pinch roller drive motor 9. Are driven to rotate.

  A guide body 20 a for guiding the conveyance of the booklet T is integrally attached to the support bracket 7. The support bracket 7 is supported by a parallel link mechanism 23a, and the parallel link mechanism 23a is rotated in the forward and reverse directions by a parallel link drive motor (shown in FIG. 5) 25. With the rotation of the parallel link mechanism 23a, the guide body 20a is moved together with the pinch roller 21a and the impeller 22a between a conveyance position close to the conveyance roller 2b and a retreat position obliquely above and to the left of the conveyance position. It has become.

  The contact feed mechanism 20B is configured in the same manner as the contact feed mechanism 20A described above. In other words, the guide body 20b, the pinch roller (first contact roller portion) 21b, the impeller 22b, and the parallel link mechanism 23b are provided, and the guide body 20b, the pinch roller 21b, and the impeller 22b are transported close to the transport roller 2c. The position is moved between a position and a standby position obliquely above and to the right of the transport position.

  Further, a turning suction mechanism 10 is provided at the page turning position 5 described above.

  Hereinafter, the winding suction mechanism 10 will be described with reference to FIG.

  The winding suction mechanism 10 includes a pair of vacuum pads 10a disposed on the upper side through the conveyance path 1 and a pair of vacuum pads 10b disposed on the lower side.

  The pair of vacuum pads 10b on the lower side are arranged at a predetermined interval along the transport direction of the booklet T with the suction port facing upward, and face the lower surface side of the booklet T that has been transported immediately above. It is like that.

  The pair of upper vacuum pads 10a are attached to the support carriage 15 with a predetermined interval in a direction orthogonal to the transport direction of the booklet T with the suction port facing downward.

  A pump 12 is connected to the upper and lower vacuum pads 10 a and 10 b via a negative pressure supply circuit 11. In the negative pressure supply circuit 11, a filter 14 for separating dust in the air sucked in by the negative pressure, an operation valve 13 for switching the negative pressure, and branch pipes 31a to 31c are arranged.

  When the operation valve 13 is opened, negative pressure is generated in the vacuum pads 10a and 10b, and when the booklet T is opposed, the vacuum pads 10a and 10b are sucked. The suction force W [N] of the vacuum pads 10a and 10b is obtained by the following equation.

W = 0.1 × P × A / S
P: Vacuum pressure (gauge pressure) [-kPa]
A: Vacuum pad area [cm ² ]
S: Safety factor On the other hand, bent portions are formed on both side portions of the support carriage 15, and guide wheels 15a and 15b are respectively provided in the bent portions so as to be positioned vertically. Guide plates 16 are respectively disposed on both sides of the support carriage 15. Cam grooves 16a and 16b are formed on the guide plates 16 so as to be vertically positioned, and guide wheels 15a and 15b of the support carriage 15 are fitted into the cam grooves 16a and 16b.

  The lower guide wheel 15a is also fitted into the groove portion 17a of the drive link plate 17 as drive means via the cam groove 16a. The drive link plate 17 is connected to the drive shaft 17c, and the drive shaft 17c is spanned between the guide plates 16 and 16. A driving knob 26 a is attached to one end portion of the drive shaft 17 c, and a drive link plate drive motor 29 is connected to the other end portion via a drive pulley 27 and a drive belt 28.

  The shaft of the upper guide wheel 15b is connected to the hook portion 18a via a spring 18, and the support carriage 15 is elastically biased upward.

  When the drive link plate drive motor 29 is driven, the drive shaft 17c is rotated via the drive belt 28 and the drive pulley 27, and the drive link plate 17 is rotated in the forward and reverse directions (left and right directions). By this rotation, the guide wheels 15 a and 15 b are guided along the two cam grooves 16 a and 16 b of the guide plate 16 to move the support carriage 15.

  The drive link plate 17 points in the 12 o'clock direction in the initial state before the support carriage 15 is moved, and the vacuum pad 10a supported by the support carriage 15 is retracted to the upper retracted position.

  FIG. 4 shows the trajectory of the pad support carriage 15 that moves along the cam grooves 16 a and 16 b of the guide plate 16 at the page turning position 5 of the booklet T.

  M1 is the binding position of the booklet T at the page turning start position, and M2 is the binding position of the booklet T at the reverse page turning start position. Pn is the center position of the guide wheel 15a, and Qn is the center position of the guide wheel 15b.

  The position and direction of the support carriage 15 are determined at two points of the center positions Pn and Qn of the guide wheels 15 a and 15 b, and the vacuum pad 10 a moves in conjunction with the support carriage 15. That is, between P1 and P2 and between Q1 and Q2 in the cam grooves 16a and 16b of the guide plate 16 is an arc centered on M1, during that time, the vacuum pad 10a is bound to the binding of the cover of the booklet T around M1. It will move in line with the lifting movement around the center of rotation.

  In reverse page turning, the shape of the cam grooves 16a and 16b of the guide plate 16 and the movement of the vacuum pad 10a are also symmetric with respect to M2.

  Further, between P0 and P2, a circular arc that smoothly connects the curves symmetrically developing P1 and P2 is formed, while between Q0 and Q2, the cam groove 16b of the guide plate 16 recedes linearly in the target axis direction. It is formed to do.

  Therefore, the support carriage 15 reduces the inclination so far, and when the center positions of the guide wheels 15a and 15b reach P0 and Q0, the support carriage 15 returns to the vertical position and becomes the upper retreat position (initial position) of the vacuum pad 10a.

  The drive link plate 17 that moves the guide wheel 15a around the drive shaft (rotation center) 17c points in the 12 o'clock direction at this time, and the support carriage 15 can be moved symmetrically in the clockwise and counterclockwise directions. As a result, the maximum retraction position in the page turning operation of the vacuum pad 10a corresponds to the turning start position in the reverse page turning operation, so that the page turning and the reverse page turning can be performed in a compact range.

  Note that the actual binding position of the booklet T and the M1 and M2 positions deviate from each other depending on the thickness of the booklet T, the binding method of the booklet T, the placement of high-rigidity pages in the booklet T, or the variation in the page turning start position due to the conveying operation. Sometimes. In the lifting operation of the cover of the booklet T, the locus of the vacuum pad 10a is not ideal and deviates, but the lifting angle is as small as less than 45 degrees, and the balance between the booklet T and the vacuum pads 10a and 10b is balanced. It doesn't matter much because there is play that can move. This play is due to elastic deformation of the vacuum pad 10 and elastic deformation near the booklet binding.

  FIG. 5 is a block diagram showing a drive control system of the page turning apparatus described above.

  As described above, the detection sensors 4a to 4d, the page lifting detection sensor 19, and the page number detection sensor 24 are connected to the control unit 40 serving as control means via a signal circuit. The control unit 40 is connected to the drive motors 9, 25, 26, 29 for the pinch roller, the parallel link, the transport roller, and the drive link plate, and the operation valve 13 via the control circuit. Solenoid 38, which will be described later, is connected, pinch rollers 21a, 21b, impellers 22a, 22b, parallel link mechanisms 23a, 23b, transport rollers 2a-2d, drive link plate 17, and vacuum pads 10a, 10b. The driving of 33a and 33b is controlled based on the detection signal.

  Next, the page turning operation of the booklet T will be described with reference to FIGS.

  As shown in FIG. 6, the booklet T is conveyed rightward along the conveyance path 1 by the rotation of the conveyance roller 2a in the direction of the arrow. When the booklet T is conveyed to the detection sensor 4b and detected by this conveyance, the control unit 40 rotates the pinch roller 21a and the impeller 22a in the direction of the arrow and operates the parallel link mechanism 23a. By the operation of the parallel link mechanism 23a, the movable guide 20a is moved from the retracted position together with the pinch roller 21a and the impeller 22a to the transport position, the booklet T is sandwiched between the transport roller 2b and the pinch roller 21a, and further transported in the right direction. To do.

  When the leading end of the booklet T is detected by the detection sensor 4c by this conveyance, the conveyance roller 2b and the pinch roller 21a are reversed by a predetermined number of pulses, the booklet T is reversely fed, and stops at a predetermined page turning position 5. Is done.

  After that, as shown in FIG. 7, the parallel link mechanism 23a is rotated in the counterclockwise direction, and the movable guide 20a is moved upward together with the pinch roller 21a and the impeller 22a from the transport position and retracted.

  On the other hand, at this time, the operation valve 13 shown in FIG. 3 is operated and negative pressure is generated in the upper and lower vacuum pads 10a and 10b, and the lower vacuum pad 10b on the lower surface side of the booklet T as shown in FIG. Is pressed and held. Further, at this time, the drive link plate drive motor 29 shown in FIG. 3 is operated to rotate the drive arm plate 17 in the clockwise direction, and the upper vacuum pad 10a is pressed against the cover Ta of the booklet T to remove the cover Ta. Adsorb.

  After this suction, as shown in FIG. 8, the drive arm plate 17 is rotated in the reverse direction (counterclockwise), and the vacuum pad 10a keeps sucking the cover sheet Ta along the locus of the cam groove 16a of the guide plate 16. Move upward.

  Thereby, the cover Ta of the booklet T is lifted around the binding Tb of the booklet T without changing the suction state with the vacuum pad 10a. The cover Ta of the booklet T is only lifted around the binding Tb of the booklet T, and is not given any bending deformation force. Therefore, the rigidity of the page does not affect the turning operation.

  In this way, when the cover Ta of the booklet T is lifted and lifted to a predetermined position, the page lift detection sensor 19 detects it. Based on this detection, the control unit 40 moves the movable guide 20b from the retracted position to the transport position together with the rotating pinch roller 21b and the impeller 22b. At this time, the plurality of lower middle sheets that are lifted by lifting the cover Ta of the booklet T are knocked down by the hitting plate of the impeller 22b, and the pinch roller 21b enters the page immediately below the cover Ta.

  Thereafter, the operation valve 13 is closed by the control unit 40, and the suction of the vacuum pad 10a is stopped. Next, as shown in FIG. 9, the drive link plate 17 is returned to the initial clock 12 o'clock direction to return the vacuum pad 10a to the upward retracted position.

  After that, the booklet T is nipped and conveyed in the right direction by the rotation of the conveying roller 2c and the pinch roller 21b, and stopped when detected by the booklet detection sensor 4d. Thereby, the cover Ta of the booklet T comes into contact with the pinch roller 21b.

  At this time, the drive link plate 17 is rotated counterclockwise from the retracted state, and the vacuum pad 10a is moved so as to be retracted from the range in which the cover Ta of the booklet T rolled up is retracted as shown in FIG. At this time, the right end of the booklet T is already nipped between the transport roller 2d and the pinch roller 2d 'and can be transported, and the movable guide 20b is returned to the retracted position.

  From this state, the transport roller 2d is rotated, and the cover Ta of the booklet T that has been rolled up is completely rolled down as shown in FIG. 11 with no interfering parts nearby. Therefore, the operation can be completed here without depending on the rigidity of the page.

  In this conveyance, the page number recorded on the cover Ta on which the booklet T is opened is scanned by the page number detection sensor 24. The scan information is transmitted to the control unit 40, and the control unit 40 determines whether or not the turning operation is performed according to the program based on the transmitted scan information, and determines that the turning operation is not performed according to the program. If so, repeat the beat operation.

  If it is determined that the page turning operation has been performed, the booklet T is sent to the subsequent process for processing, and after this processing, the booklet T is sent back to the page turning position 5 again as shown in FIG. . From this state, as shown in FIG. 12, the vacuum pad 10a adsorbs and lifts the cover sheet Ta, and when the lifted cover sheet Ta is detected by the page lift sensor 19, the movable guide 20a is moved to the pinch roller as shown in FIG. It moves rightward together with 21a and impeller 22a and enters the lower side of cover Ta. After that, as shown in FIG. 14, the booklet T is conveyed leftward by the rotation of the conveying rollers 2b, 2c, and 2d in the direction of the arrow, and the cover sheet Ta is rotated in the closing direction by contacting the pinch roller 21a. . Further, as the booklet T is conveyed leftward as shown in FIG. 15, the cover Ta is rotated and closed in the closing direction, and the page closing operation is completed. At the time of the page closing operation, the vacuum pad 10a is retracted from the standby position to the lower right so that the cover Ta that rotates greatly in the closing direction does not come into contact.

  Incidentally, guide bodies 43a and 43b for guiding the conveyance of the booklet T are provided on the upstream side and the downstream side in the booklet conveyance direction at the page turning position 5, as shown in FIG. Further, as shown in FIG. 18, the page turning position 5 is provided with a conveyance guide 44 as a conveyance guide body for guiding the conveyance of the booklet T.

  The conveyance guide 44 is disposed at a position higher than the upstream and downstream guide bodies 43a and 43b by a predetermined dimension. That is, the distance between the tops of the transport rollers 2b and 2c and the transport guide 44 is smaller than the distance between the tops of the transport rollers 2b and 2c and the guide bodies 43a and 43b.

  The distance between the tops of the transport rollers 2b and 2c and the transport guide 44 is slightly larger than the amount (nip) of the booklet T that bites into the transport rollers 2b and 2c due to the pinch pressure of the pinch rollers 21a and 21b. It has become.

  On the other hand, as shown in FIGS. 16 and 18, a receiving plate 51 is integrally provided between the pair of vacuum pads 10a on the upper side. The lower surface of the receiving plate 51 is slightly higher than the pad suction surface when the upper vacuum pad 10a is pressed against the booklet T and crushed.

  One of the vacuum pads 10b on the lower side is positioned directly below the receiving plate 51 and pressed against the lower surface of the booklet T, and the other vacuum pad 10b is pressed near the binding portion Tb where the booklet T has high rigidity. It is supposed to be.

  Further, the transport rollers 2 b and 2 c protrude from the top of the transport guide 44 and give an appropriate transport force to the lower surface of the booklet T. An appropriate gap is formed between the tops of the transport rollers 2b and 2c and the transport guide 44 so as not to scratch the surface of the booklet T during transport.

  However, in the page turning section 5, since the transport of the booklet T by the transport rollers 2b and 2c is once interrupted, the gap between the top of the transport rollers 2b and 2c and the transport guide 44 can be reduced. .

  On the other hand, an auxiliary roller 47 is disposed immediately below the booklet portion to which the upper vacuum pad 10a is pressed. Further, an auxiliary roller 48 is disposed in the vicinity of the transport rollers 2b and 2b. The auxiliary rollers 47 and 48 are arranged such that their tops are at the same height as the tops of the transport rollers 2b and 2c.

  The function of the auxiliary rollers 47 and 48 is to prevent the booklet T from being deformed without being scratched or clogged when the booklet T is transported, and to prevent the booklet T from being deformed by pressing the vacuum pad 10a on the upper side. It is not restricted to a roller, You may make it make the top part contact the lower surface of the booklet T using the protrusion member with smoothness.

  Further, at the page turning position 5, a conveyance belt may be used instead of the conveyance rollers 2b and 2b. In this case, it is possible to support the entire lower surface of the booklet T so as to be a fixed plane without using the auxiliary rollers 47 and 48.

  Next, the page turning operation of the flexible intermediate paper Tc of the booklet T will be described.

  First, as shown in FIGS. 16 to 18, when the booklet T with the cover Ta opened reaches the page turning position 5, the upper vacuum pad 10 a is pressed against the upper surface of the intermediate paper Tc and the lower side The vacuum pad 10b is pressed against the lower surface of the booklet T and sucked.

  After this suction, as shown in FIGS. 19 to 21, the upper vacuum pad 10a is moved upward, and the intermediate paper Tc of the booklet T is lifted and rolled.

  By the way, when the upper vacuum pad 10a is pressed against the upper surface portion of the middle paper Tc of the booklet T, the booklet T tends to bend and deform downward. At this time, the booklet T is received by the conveyance guide 44 and the auxiliary roller 47. Deflection will be regulated.

  Therefore, when the middle paper Tc of the booklet T is lifted, as shown in FIG. 20, it can be buckled into a clean S-shape, and the page under the adsorbed middle paper Tc can be reliably separated. .

  Further, when one vacuum pad 10b on the lower side is pressed against the lower surface portion of the booklet T, the booklet T tends to bend and deform upward, but at this time, it is received by the receiving plate 51 and the bending is restricted. Become. When the other vacuum pad 10b on the lower side is pressed against the lower surface of the booklet T, the booklet T tends to bend upward and deform, but the area where the other vacuum pad 10b is pressed is near the binding portion Tb of the booklet T. Therefore, the rigidity is high and the upward bending deformation is restricted.

  Accordingly, the pair of vacuum pads 10b on the lower side can be satisfactorily attracted to the lower surface portion of the booklet T.

  As described above, according to this embodiment, the conveyance guide 44 and the auxiliary roller 47 are disposed at the page turning position 5, and the upper-side vacuum pad 10a is pressed against the upper surface of the intermediate paper Tc of the booklet T. When the upper side of the booklet T is lifted by the upper vacuum pad 10a, the conveyance guide 44 and the auxiliary roller 47 regulate the downward deflection of the booklet T, so that the booklet T is buckled into a clean S-shape. This makes it possible to reliably separate the lower page of the adsorbed intermediate paper Tc.

  In addition, a receiving plate 51 is integrally provided between the pair of upper vacuum pads 10a slightly above the suction surface, and the upper surface side of the booklet T pressed by the lower vacuum pad 10b is provided. While being received by the receiving plate 51, the other vacuum pad 10b on the lower side is pressed in the vicinity of the highly rigid booklet binding portion Tc, so that the bending deformation of the booklet T can be restricted, and the pair of vacuum pads 10b on the lower side can be controlled by the booklet T. It can be made to adsorb | suck favorably with respect to the lower surface part.

(Second Embodiment)
22 and 23 show the second embodiment.

  In the second embodiment, during the lifting operation of the intermediate paper Tc by the upper vacuum pad 10a, as shown in FIG. 22, the rotating impeller 22b is brought into contact with the edge of the intermediate paper Tc in the middle of the operation. (Step 1) Next, as shown in FIG. 23, the rotating impeller 22b is moved under the S-shaped secondary buckled intermediate paper Tc to scrape the falling intermediate paper Tc. Drop (step 2).

  Conventionally, the impeller 22b has been utilized only in the state of step 2 in FIG.

  In the second embodiment, Step 1 in FIG. 22 is newly added to the stage before Step 2, whereby it is possible to scrape the intermediate paper Tc in a state where a plurality of sheets are adsorbed by the impeller 22 b. The lifting position of the vacuum pad 10a for realizing this is the height at which the cover Ta is wound or a position lower than that.

  Note that the operation in step 1 can be used not only for turning the cover sheet Tc but also for turning the cover sheet Ta, so that the cover sheet Tc sucked on the back of the cover sheet Ta by static electricity or the like can be scraped off.

  Further, when the page lifting speed is relatively high in Step 1, the curling effect against the adsorption of a plurality of sheets due to the fiber roughness of the intermediate paper Tc is enhanced. That is, the longer the time for which the upper vacuum pad 10a is pressed, the greater the degree of ventilation of the fibers of the inner paper Tc. Therefore, when a predetermined (which may be lifted) vacuum level is reached, by raising it earlier, The performance of sheet separation will be improved.

  On the other hand, when the lifting speed of step 2 after step 1 is made relatively slow, it is effective in successfully separating one sheet. That is, because the upper adsorption may be disengaged even with a small impact due to the deformation resistance that buckles the page in an S shape, it is better to buckle over time within the range allowed by the tact time.

  As another embodiment, the single sheet separation in step 1 may be performed after the single sheet separation in step 2 is performed first.

(Third embodiment)
FIG. 24 shows a third embodiment.

  In the third embodiment, a pair of small pinch rollers 54 connected via a shaft 53 are disposed so as to protrude and retract on the receiving plate 51, and the pair of small pinch rollers 54 are elastically attached downward by a spring 55. The pair of small pinch rollers 54 protrude from the receiving plate 51 by turning on and off the solenoid 56.

  The pair of small pinch rollers 54 guides the booklet T by taking its lower end portion into and out of the receiving plate 51 in response to fluctuations in the thickness of the booklet T.

  According to the third embodiment, since the pair of small pinch rollers 54 are arranged on the receiving plate 51 that retracts the stroke in conjunction with the upper-side vacuum pad 10a, the operation distance of the small pinch roller 54 is reduced. Can be made compact.

  If the suction force of the upper vacuum pad 10a is sufficiently larger than the pinch force of the small pinch roller 54, the operation (and mechanism) of moving the small pinch roller 54 by the solenoid 52 may be abolished.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 1 ... Conveyance path, T ... Booklet, Tb ... Booklet binding part, 2a-2d ... Lower side conveyance roller (conveyance means), 5 ... Page turning position, 10a ... Upper side vacuum pad, 10b ... Lower side Vacuum pad, 17 ... drive link plate (drive means), 21a, 21b ... pinch rollers (contact roller section, upper side transport roller), 22b ... impeller, 40 ... control section (control means), 43a, 43b ... guide body, 44 ... conveying guide (conveying guide body), 47, 48 ... auxiliary roller (supporting body), 51 ... receiving plate (receiving member), 54 ... small pinch roller (guide roller).

Claims (6)

Transport means for transporting the booklet along the transport path to a page turning position;
Upper and lower vacuum pads that are pressed against the upper and lower surfaces of the booklet conveyed to the page turning position by the conveying means and vacuum-adsorbed;
Driving means for moving the upper-side vacuum pad to lift the booklet page by a predetermined angle in the direction of opening the page around the binding;
A contact roller portion entering the lower side of the page lifted by the predetermined angle;
After the contact roller part enters the lower side of the page, the vacuum suction of the upper and lower vacuum pads is released and the upper vacuum pad is retracted from the uppermost page to the retracted position. Control means for controlling the booklet to be conveyed and opened by bringing the page into contact with the contact roller portion;
A conveyance guide body which is provided at the page turning position and guides conveyance of the booklet;
A support provided in the vicinity of the transport guide body;
The transport guide body and the support body support the lower surface side of the booklet so that the booklet does not bend and deform when the vacuum pad on the upper side is pressed against the booklet ,
The transport means is disposed on the upper and lower transport rollers disposed vertically through the transport path at the page turning position, and on the upstream side and the downstream side in the booklet transport direction of the page turning position, respectively. A guide body for guiding the conveyance of
The conveyance guide body at the page turning position is disposed at a predetermined distance above the upstream and downstream guide bodies,
The top of the lower conveyance roller protrudes from the conveyance guide body, and the amount of protrusion is the top of the booklet when the upper conveyance roller contacts the upper surface of the booklet. A page turning device for a booklet characterized by being larger than a nip amount for biting into a booklet. 2. The booklet page turning apparatus according to claim 1, wherein the support is an auxiliary roller. A pair of the upper-side vacuum pads are disposed at a predetermined interval in a direction perpendicular to the conveyance direction of the booklet,
A pair of the vacuum pads on the lower side are disposed at a predetermined interval in the conveyance direction of the booklet,
A receiving member is provided integrally between the pair of vacuum pads on the upper side,
Wherein when the upper and lower portion pressing of the booklet by the vacuum pads, one of the vacuum pads of the lower side, according to claim 1 or 2, characterized in that in contact with the lower surface portion of the booklet situated immediately below the receiving member Booklet page turning device. 4. The booklet page turning apparatus according to claim 3 , wherein the receiving member is at a position higher than a suction surface of the pair of vacuum pads on the upper side by a predetermined dimension. 5. The booklet page turning apparatus according to claim 3 , wherein the other of the lower-side vacuum pads is in contact with the vicinity of the binding portion of the booklet. The booklet page according to any one of claims 3 to 5 , further comprising a guide roller disposed on the receiving member and protruding and retracting in response to a thickness variation of the booklet being conveyed. Beating device.

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