JP4689690B2 - Folding machine transfer device - Google Patents

Description

  The present invention relates to a rotary press in which a plurality of continuous papers are stacked and vertically folded to a half width by a former, and a width dimension of the first continuous paper group after being vertically folded by the former. The second continuous paper group of the folding machine that creates a newspaper signature by superimposing the second continuous paper group made of a plurality of continuous papers having the same width as the above and feeding them between the saw cylinder and the folding cylinder. The present invention relates to a transfer device for a folding machine that includes at least one transfer roller provided so as to be guided to a position to be superimposed on a first continuous paper group, and at least one of the transfer rollers is rotationally driven.

  Newspaper signatures produced on a rotary press usually overlap a plurality of continuous pages of two pages width printed by determining the length of the continuous paper according to the predetermined cutting dimensions of the folding machine. Through the former of the folding machine, the former is vertically folded to a half width parallel to the traveling direction, and the width of one page, that is, the width of the signature (hereinafter referred to as the signature) discharged on the folding machine conveyor described later. A continuous paper group). Then, the continuous paper group is guided to a cutting position between the saw cylinder and the folding cylinder, and is cut to a predetermined cutting dimension by a saw blade attached to the saw cylinder at a right angle to the running direction of the continuous paper, and the folding cylinder and folding A four-fold newspaper signature (hereinafter referred to as signature A) is produced which is folded horizontally by a roller and discharged onto a conveyor via a delivery fan.

  On the other hand, a continuous paper group is formed by superimposing a plurality of continuous papers having the width of the signature printed by determining the lengthwise dimension of the continuous paper according to a predetermined cutting size of the folding machine, and forming a continuous paper group. Lead to the cutting position between the cylinders, cut to a predetermined cutting dimension by a saw blade attached to the saw cylinder at right angles to the running direction of the continuous paper, fold horizontally with the folding cylinder and folding roller, and via the delivery fan Other newspaper signatures (hereinafter referred to as signature B) that are folded on the conveyor are also manufactured.

  These newspaper signatures have conventionally been produced separately. However, recently, a continuous paper group (hereinafter referred to as continuous paper group A) which becomes a signature A by vertically folding a plurality of continuous papers having a width of two pages by a former into a half width by a former. And a continuous paper group (hereinafter referred to as a continuous paper group B) that forms a signature B obtained by superimposing a plurality of continuous papers each having a signature width. First, a continuous continuous paper group (hereinafter referred to as continuous paper group E) is obtained. The continuous paper group E is guided to a cutting position between the saw cylinder and the folding cylinder, cut to a predetermined cutting dimension by a saw blade attached to the saw cylinder at a right angle to the traveling direction, and is folded horizontally by the folding cylinder. As a result, it has become desirable to produce a newspaper signature (hereinafter referred to as signature E) in which signature A and signature B are folded and folded with a common horizontal folding line.

  In order to produce the signature E, one of the continuous paper group A and the continuous paper group B, which are superposed on different paper paths and guided to different paper paths, or both are set as the continuous paper group E. Therefore, it is necessary to transfer to the overlapping position by a transfer device provided in the folding machine.

  By the way, the transfer device of the folding machine changes the traveling direction when the continuous paper group comes into contact with one or a plurality of transfer rollers rotatably supported with a winding angle. For this reason, the continuous paper group to be transferred moves along the width of the continuous paper while traveling along the paper path of the transfer device due to the elongation that occurs in the direction of travel or the rotational resistance of the transfer roller. As a result, the quality of the signature is impaired.

  On the other hand, a technique disclosed in Japanese Utility Model Publication No. 62-53279 (hereinafter referred to as Patent Document 1) is provided as a transfer device for a folding machine.

  In Patent Document 1, a rotation driving device is provided on a transfer roller of a transfer device so that an appropriate tension is applied to continuous paper.

In the case of continuous paper group A that is vertically folded to a half width by a former, Patent Document 1 discloses a continuous paper on the radially inner side that is guided in contact with the outer periphery of a transfer roller provided with a rotation driving device, Since the continuous paper on the outer side in the radial direction guided from the outer periphery of the transfer roller through a plurality of continuous papers is connected by a fold formed by the former, the continuous papers constituting the continuous paper group A are integrated. A certain amount of tension could be applied.
Japanese Utility Model Publication No. 62-53279

  By the way, in a folding machine, for example, a balloon former is placed above a normal former, and a long-former is formed in the running direction of continuous paper with a large inclination angle between the former surface and a horizontal plane. Due to various reasons such as those described above, the transfer path by the transfer device has recently been prone to become longer. For this reason, while the continuous paper group is transferred by the transfer device, the weakening of the tension due to the elongation in the running direction becomes remarkable, and moreover, an air layer is often wound between the continuous papers.

  In particular, the continuous paper group B in which a plurality of continuous papers having a signature width are overlapped is guided via a continuous paper on the radially inner side guided in contact with the outer periphery of the transfer roller and a plurality of continuous papers from the outer periphery of the transfer roller. The continuous papers on the outer side in the radial direction are independent from each other, and neither side edge in the width direction is closed, so that the continuous paper group B is not transferred between the nipping roller and the transfer roller. While traveling between or between the transfer roller and the transfer roller, it is very easy to entrain a layer of air between each continuous paper. Even if the continuous paper group B comes into contact with the transfer roller with a winding angle, the air layer between the continuous paper rolls can be completely discharged only from both side edges of the continuous paper group B. could not.

  Therefore, due to the air layer remaining between the continuous sheets, the transmission of force due to the mutual frictional force between the stacked continuous sheets becomes extremely small. For example, the driving of the transfer roller disclosed in Patent Document 1 is performed. Thus, the appropriate tension applied to the continuous paper on the radially inner side guided in contact with the outer periphery of the transfer roller does not effectively act on the continuous paper that sequentially overlaps the outside of the continuous paper.

  Accordingly, an appropriate tension cannot be applied to each continuous paper constituting the continuous paper group B, so that the continuous paper moves in the width direction during running and may meander, and the quality of the signature may be impaired. It was.

  The present invention prevents the continuous paper from being biased or meandering by applying an appropriate tension to each continuous paper constituting the continuous paper group in order to solve the problems of the prior art. It is an object of the present invention to provide a folding machine transfer device that can perform the above-mentioned.

In order to solve the above-described problem, a folder transfer device according to claim 1 of the present invention provides:
The width of the first continuous paper group is a width that is the same as the width dimension of the first continuous paper group that is overlapped with a plurality of continuous papers and vertically folded to a half width by the former, and the first continuous paper group that has been vertically folded by the former. Ri, the transfer device of a folding machine for creating a second web group and superimposed folded newspapers fed into the saw cylinder and folding Donoma by Ding superposed plurality of the continuous paper above said former,
The second continuous paper group is provided such that at least three transfer rollers are provided so that the second continuous paper group can be guided from the upper side of the former to a substantially vertical lower side, and at least two of them are rotationally driven.
The two driven transfer rollers are brought close to each other, and at least one of the transfer rollers is provided with a step on the outer peripheral surface in a range where the continuous paper is in contact with the large diameter portion and the small diameter portion alternately adjacent to each other in the axial direction. It is characterized in that there is provided at least one arrangement which is a roller and is in contact with one side and the other side of the second continuous paper group with a winding angle .

According to the folder transfer device according to claim 1 of the present invention, the transfer roller is a roller in which a large diameter portion and a small diameter portion are alternately adjacent to each other in the axial direction and a step is provided in a range where the continuous paper contacts. Accordingly, the continuous paper group in contact with the transfer roller with a wrap angle is in contact with the large-diameter portion of the transfer roller. Strongly pressed against the surface. On the other hand, in the area in contact with the small diameter part, the force pressed against the surface of the transfer roller is weak, and the air layer wound between the continuous paper is between the continuous paper in contact with the large diameter part strongly pressed against the surface of the transfer roller. Therefore, the air force between the continuous sheets in contact with the large-diameter portion disappears due to being pushed away to the range where the pressing force is in contact with the small-diameter portion. Accordingly, the continuous papers come into contact with each other at the transfer roller large-diameter portion, and the force is transmitted by the frictional force. Accordingly, since appropriate tension can be applied to each continuous paper constituting the continuous paper group, it is possible to prevent the continuous paper from being biased or meandering.

Further , the two driven transfer rollers are brought close to each other, and at least one of the transfer rollers is provided with a step on the outer peripheral surface in the range where the continuous paper is in contact with the large diameter portion and the small diameter portion alternately adjacent to each other in the axial direction. The following effects can be obtained by providing an arrangement in which each roller is in contact with one side and the other side of the second continuous paper group with a winding angle.

  When there is a large number of continuous paper, the continuous paper that is far from the transfer roller surface that is in contact with one of the transfer rollers provided with a step on the outer peripheral surface via a plurality of continuous paper is a cushion of overlapping continuous paper, The effect of pushing away the air layer at the large diameter portion is weakened. Therefore, when a large amount of air is caught between continuous paper, the continuous paper far from the transfer roller surface cannot push the air layer even in the large-diameter portion, and the friction force from the transfer roller surface. It becomes difficult to transmit the force due to. Therefore, another transfer roller is provided in the vicinity of the one transfer roller, and is brought into contact with different surfaces of the second continuous paper group with a wrap angle so that the continuous paper far from the surface of the one transfer roller is also contacted. Since sufficient force is transmitted from the other transfer roller, an appropriate tension can be applied to the entire continuous paper constituting the continuous paper group. Therefore, the effect of preventing the continuous paper from being biased or meandering is further enhanced.

  Preferably, among the peripheral surfaces having different outer diameters, the large-diameter portion may be arranged substantially symmetrically with respect to the center in the width direction of the continuous paper.

  Preferably, the ratio of the axial range of the large diameter portion to the small diameter portion of the peripheral surfaces having different outer diameters is the same as or less than that of the small diameter portion.

  Furthermore, it is preferable that the peripheral surface of the large diameter portion among the peripheral surfaces having different outer diameters is subjected to a surface treatment for increasing the friction coefficient.

  With these preferable modes, the balance of the running tension is maintained in the width direction, and no deviation occurs.

  ADVANTAGE OF THE INVENTION According to this invention, the transfer apparatus of the folding machine which can prevent that a continuous paper is biased or meandered by giving appropriate tension to each continuous paper which comprises a continuous paper group can be provided. .

  An embodiment of the invention will be described with reference to FIGS.

  FIG. 1 is a schematic view of a folding machine F provided with the transfer device R of the present invention, as viewed from the AA arrow in FIG. 2 is an enlarged perspective view showing the relationship between the transfer roller R1 and the second continuous paper group W10 in the transfer device R shown in FIG. 3 is an enlarged perspective view showing the relationship between the transfer rollers R2 and R3 and the second continuous paper group W10 in the transfer device R shown in FIG. 4 is an enlarged perspective view showing the relationship with the second continuous paper group W10 by replacing the transfer roller R3 shown in FIG. 3 with another transfer roller R3 '. FIG. 5 is an overall view showing an outline of a newspaper rotary press having a folding machine F equipped with the transfer device R of the present invention.

  As shown in FIG. 5, continuous newspapers W1 to W4 having a width of 4 pages supplied from the paper feeding units B1 to B4 are printed on both sides by the printing units T1 to T4 and provided on the rail frame L. The slitter knives K1 to K4 divide the center of the paper width in half in parallel with the paper running direction, and the half width (2 pages width) one side continuous paper W11 to W41 and the half width (2 pages) Width) The other side continuous paper W12 to W42. The half-width continuous paper W12 to W42 of the half-divided continuous paper has half-width one-side continuous papers W11 to W42 at half-width one-side continuous papers W11 to Z42 in a direction perpendicular to the running direction by the one-side turn bars Z1 to Z4. It is guided to the folding machine F at the same position as W41.

  The continuous papers W2 to W4 printed by the printing units T2 to T4 are respectively continuous with the half-width one-side continuous papers W21 to W41 and the half-width other side by the slitter knives K2 to K4 as described above. Paper W22 to W42 are overlapped by the drag roller D11 and are passed through a paper path passing through the lower former F11. The lower former F11 employs a long-form former in the running direction of the continuous paper with a large inclination angle formed by the former surface and the horizontal plane for various reasons.

  On the other hand, as described above, the continuous paper W1 printed by the printing unit T1 is made into the half width one side continuous paper W11 and the half width other side continuous paper W12 by the slitter knife K1, and these two two The continuous papers W11 and W12 each having a width of 1 are overlapped by a drag roller D21 and passed through a paper path passing through a balloon former F21.

  The half-width one-sided continuous papers W21 to W41 and the half-width one-sided continuous papers W22 to W42 are vertically folded at the center in the width direction parallel to the running direction by the lower former F11 and a pair of forming rollers U11. (Former folded). In this way, the six half-width continuous papers W21 to W41 and W22 to W42 that are superimposed are vertically folded to form a first continuous paper group W20 having a former fold. Both ends of the first continuous paper group W20 are sandwiched between the driven first nipping rollers N1a and N1b, the second nipping rollers N2a and N2b, and the third nipping rollers N3a and N3b with an appropriate force. Then, it is sent to the downstream side and proceeds between the saw cylinder C1 and the folding cylinder C2.

  The half-width one-side continuous paper W11 and the half-width other-side continuous paper W12 are overlapped by the drag roller D21 portion directly above the balloon former F21, and half of the two overlapped sheets. The continuous papers W11 and W12 having a width are both divided by a slitter knife K5 in the center of the paper width in parallel with the running direction, and are divided into four continuous papers W11a, W11b, W12a, and W12b that are a quarter width of the continuous paper W1. Become. Then, four continuous sheets of paper are overlapped with each other in the width direction by a balloon former F21 and a pair of forming rollers U21 to form a second continuous sheet group W10 having no former folded portion. The second continuous paper group W10 is fed to the downstream side by being sandwiched between nipping rollers M1a and M1b driven at both ends thereof with an appropriate force. The nipping roller M1a is in contact with the transfer roller R1 provided below the nipping rollers M1a and M1b and on the frame side close to the nipping roller M1a (hereinafter referred to as the operation side) with a winding angle. The second continuous paper group W10 moves its operation position to the operation side to a position where it does not interfere with the lower former F11.

  Then, the second continuous paper group W10 has a surface in the vicinity of the operation side of the lower former F11 that is substantially vertically directed downward, and has a different surface in contact with the transfer roller R2 and subsequently the transfer roller R3 provided in the vicinity of the lower side. Let it be in contact with a winding angle.

  The second continuous paper group W10 that bypasses the lower former F11 and the forming roller U11 provided below the lower former F11 contacts the transfer roller R3 with a winding angle, as described above, and the travel position is determined from the frame. The first continuous paper group W20 moves away from the center of the folding machine and comes into contact with the second nipping roller N2a on the paper path between the saw cylinder C1 and the folding cylinder C2 with a winding angle. The second continuous paper group W20 is joined with the second continuous nipping roller N2a and the second nipping roller N2b with an appropriate force in a state where the position of the side portion in the width direction coincides with the first continuous paper group W20. W10 and the first continuous paper group W20 are overlapped to form a merged continuous paper group, and are sent out. Furthermore, it is sent out by the third nipping rollers N3a and N3b and advances between the saw cylinder C1 and the folding cylinder C2. Then, the first continuous paper group W20 is wound around the outer periphery of the folding cylinder C2 with the second continuous paper group W10 overlapped inside. Further, the blade is cut into a predetermined length perpendicular to the traveling direction by a saw blade mounted on the saw cylinder C1, and is pushed between the folding rollers C3a and C3b by a folding blade (not shown) protruding from the folding cylinder C2 to be folded horizontally. The As a result, the section with the former folded portion separated from the first continuous paper group W20 becomes the outer side, and the section without the former folded portion separated from the second continuous paper group W10 becomes the inner side. And discharged onto the conveyor C5 via the delivery fan C4.

  In the configuration described above, the transfer device R according to the present invention is configured to include transfer rollers R1 to R3 and related mechanisms (not shown) such as driving means thereof.

  Next, the positions and shapes of the transfer rollers R1 to R3 will be described.

  The transfer roller R1 for guiding the second continuous paper group W10 to a position where it does not interfere with the lower former F11 is provided at a position close to the operation side frame as described above and below the nipping rollers M1a and M1b. It has been.

  The transfer roller R3 that guides the second continuous paper group W10 guided substantially vertically downward from the transfer roller R1 in the direction to join the paper path of the first continuous paper group W20 is substantially directly below the transfer roller R1. It is provided above the positions of the nipping rollers N2a and N2b.

  The transfer roller R2 is provided near the upper portion of the transfer roller R3. Further, the transfer roller R2 has a horizontal interval between the axis of the transfer roller R3 and the axis of the transfer roller R3 that is smaller than the sum of the radius of the transfer roller R2 and the radius of the transfer roller R3, and the nipping roller N2a, Provided at a position far from N2b. Therefore, the second continuous paper group W10 traveling so as to be in contact with the peripheral surface of the transfer roller R3 on the side facing the frame from the substantially vertical upper side is opposite to the peripheral surface of the transfer roller R2 on the side facing the frame. Guide it so that it touches the surrounding surface with a winding angle.

  As shown in FIGS. 2 and 3, the transfer rollers R1 and R2 have a shape in which the large-diameter portions X and the small-diameter portions Y are alternately adjacent to each other in the axial range where the second continuous paper group W10 contacts as shown in FIGS. Provided. The large-diameter portion X and the small-diameter portion Y have a radius of approximately 1 mm, and the adjacent portions are stepped. The large diameter portion X is disposed substantially symmetrically with respect to the center in the width direction of the second continuous paper group W10, and includes the vicinity of both end portions of the second continuous paper group W10 in the present embodiment with respect to the paper width of the second continuous paper group W10. It is arranged at four places. The ratio of the axial range of the large diameter portion X to the small diameter portion Y is the same as or less than that of the small diameter portion Y. Further, the peripheral surface of the large-diameter portion X is subjected to a surface treatment for increasing the coefficient of friction such as knurling.

  As shown in FIG. 3, the transfer roller R <b> 3 is a roller having an equal diameter in the axial direction with no step on the peripheral surface.

  The transfer rollers R1, R2 and R3 are illustrated so that their peripheral speeds are faster than the traveling speed of the second continuous paper group W10 determined by the driving peripheral surface speeds of the nipping rollers M1a, M1b and N2a, N2b. Not driven by driving means. And it is desirable to set those peripheral speeds at an appropriate ratio in the range of 103% to 120% of the traveling speed of the second continuous paper group W10 when the rotary press is in operation. The transfer rollers R1, R2, and R3 are driven via an appropriate power transmission mechanism from a motor that drives the folding machine or a motor that drives a nipping roller that rotates in synchronization with the motor that drives the folding machine. Or driven by a dedicated motor that rotates in synchronism with the motor that drives the folder.

  It continues and demonstrates the effect | action of this embodiment.

  The four continuous papers W11a, W11b, W12a, W12b of the second continuous paper group W10 sent to the downstream side by the nipping rollers M1a, M1b are directed to the transfer roller R1.

  While the second continuous paper group W10 travels on the paper path from the nipping rollers M1a, M1b to the transfer roller R1, an air layer enters between the four continuous papers W11a, W11b, W12a, W12b, and a slight gap Is brought into contact with the transfer roller R1.

A large diameter portion X and a small diameter portion Y are adjacent to the peripheral surface of the transfer roller R1, and the large diameter of the transfer roller R1 of the second continuous paper group W10 that is overlapped and contacts the transfer roller R1 with a winding angle. The continuous paper W11a, W11b, W12a, W12b is strongly pressed against the surface of the transfer roller with respect to the range in contact with the portion X with respect to the range in contact with the small diameter portion Y. Meanwhile, a range in contact with the small-diameter portion Y are weak force pressed against the transfer roller surface Conversely, the continuous paper W11a, W11b, W12a, a layer of air entrained between the W12b are pressed strongly against the surface of the transfer roller large The space between the continuous papers in contact with the diameter part X is pushed away from the continuous paper in contact with the small diameter part Y where the pressing force is weak, and the air layer between the continuous papers in contact with the large diameter part X disappears. Accordingly, the continuous papers W11a, W11b, W12a, and W12b come into contact with each other in the transfer roller large-diameter portion X, and force in the running direction is transmitted by frictional force, so that appropriate tension can be applied to each continuous paper. .

  The second continuous paper group W10 that has detoured to the operation side of the lower former F11 by the transfer roller R1 is joined to the first continuous paper group W20 that is the outer section with the former folding portion, so that the transfer roller R3 that changes its traveling direction is joined. Drive towards. During the traveling, the second continuous paper group W10 is weakened in traveling tension and winds an air layer between the four continuous papers W11a, W11b, W12a, and W12b. Moreover, the distance from the transfer roller R1 to the transfer roller R3 is longer than the distance from the nipping rollers M1a, M1b to the transfer roller R1, and a large amount of air is present between the four continuous papers W11a, W11b, W12a, W12b. It is easy to involve. And the contact part between each continuous paper reduces by the layer of the entrained air, and mutual cooperation by frictional force becomes weak.

  Therefore, before the traveling direction is changed by the transfer roller R3, the second continuous paper group W10 is brought into contact with the transfer roller R2 disposed in the vicinity of the upstream side with a winding angle. The surface on which the second continuous paper group W10 comes into contact with the transfer roller R2 is the surface opposite to the surface in contact with the transfer roller R3.

  Similar to the transfer roller R1, a large-diameter portion X and a small-diameter portion Y are provided adjacent to the circumferential surface of the transfer roller R2. Therefore, first, the second continuous paper group W10 that is in contact with the transfer roller R2 with a winding angle is in contact with the small-diameter portion Y in the range where the large-diameter portion X of the transfer roller R2 is in contact with the effect of the transfer roller R1. Each continuous paper W11a, W11b, W12a, W12b is strongly pressed against the surface of the transfer roller with respect to the range. On the other hand, in the area in contact with the small diameter portion Y, the force pressed against the surface of the transfer roller is weak, and the air layer wound between the continuous papers W11a, W11b, W12a, W12b is strongly pressed against the surface of the transfer roller. The space between the continuous papers in contact with the diameter part X is pushed away from the continuous paper in contact with the small diameter part Y where the pressing force is weak, and the air layer between the continuous papers in contact with the large diameter part X disappears. However, the number of continuous paper sheets constituting the second continuous paper group is not limited to four sheets of the second continuous paper group W10, and can be up to 12 sheets in the illustrated rotary press. When the continuous paper constituting the second continuous paper group becomes the second continuous paper group W10 ′, which is larger in number than the second continuous paper group W10, the continuous paper far from the transfer roller surface is overlapped with the continuous paper. Since the effect of pushing out the air layer becomes weaker as a cushion, when a large amount of air is involved, between the continuous papers on the side farther from the surface of the transfer roller R2 among the continuous papers in contact with the large diameter portion X, An air layer remains and contact between continuous papers far from the surface of the transfer roller R2 at the large-diameter portion X of the transfer roller R2 becomes insufficient, and transmission of force in the running direction due to frictional force between the continuous papers is not possible. It will be enough.

  However, the second continuous paper group W10 ′ in which the air layer remains between the continuous papers on the side far from the surface of the transfer roller R2 is transferred to the peripheral surface of the transfer roller R3 arranged close to the downstream side of the transfer roller R2. Since the continuous paper on the side far from the surface of the roller R2 is brought into contact, a force in the running direction is also applied to the continuous paper on the side from the transfer roller R3, so that appropriate tension can be applied to all the second continuous paper groups W10 ′. it can.

  Furthermore, instead of the transfer roller R3 of the transfer device R described in the above embodiment, the transfer roller R3 is provided with the large diameter portion X and the small diameter portion Y adjacent to the transfer roller R1 and R2 adjacent to the transfer roller. The effect when 'is assumed will be described (see FIG. 4).

  As described above, the second continuous paper group W10 ′ in which the air layer remains between some continuous papers on the side far from the surface of the transfer roller R2 is transferred close to the downstream side of the transfer roller R2. The continuous paper far from the surface of the transfer roller R2 comes into contact with the circumferential surface of the roller R3 ′. Like the transfer rollers R1 and R2, the large-diameter portion X and the small-diameter portion Y are provided adjacent to the peripheral surface of the transfer roller R3 ′, so that the transfer roller R3 ′ of the second continuous paper group W3 ′ The range in contact with the large diameter portion X is strongly pressed against the surface of the transfer roller relative to the range in contact with the small diameter portion Y, while the range in contact with the small diameter portion Y is weakly pressed against the surface of the transfer roller. The air layer remaining between some continuous papers on the side far from the surface of the transfer roller R2 of the continuous paper group W10 ′ is between the continuous papers in contact with the large diameter portion X that is strongly pressed against the surface of the transfer roller R3 ′. The remaining air layer between the continuous sheets in contact with the large diameter portion X is extinguished by being pushed to a range where the pressing force is weakly in contact with the small diameter portion Y. Accordingly, the continuous papers constituting the second continuous paper group W10 ′ are in contact with each other in the large-diameter portion X of the transfer roller R3 ′, and some continuous papers on the side far from the surface of the transfer roller R2 are also caused by frictional force. Transmission of force in the traveling direction is more reliably performed. Therefore, an appropriate tension can be applied to all the continuous papers constituting the second continuous paper group W10 '.

  By the way, for the reasons described above, the arrangement relationship between the transfer rollers R2 and R3 (R3 ′), that is, the two driven transfer rollers are brought close to each other and wound around one side and the other side of the second continuous paper group, respectively. When the number of installation locations is limited, the transfer rollers arranged in contact with the corners are locations where the rollers are installed at a relatively large interval as in this embodiment, and a large amount of air can be easily caught between continuous sheets. It is desirable to arrange in the transfer roller part on the downstream side.

  On the other hand, when tension is applied to the second continuous paper group W10 (W10 ′), if the running tension is not balanced in the width direction of the second continuous paper group W10 (W10 ′), the second continuous paper group W10 (W10 ′) moves in the width direction and is biased. Wake up. Since the large diameter portions provided on the peripheral surfaces of the transfer rollers R1, R2 and R3 ′ are disposed at four locations including the vicinity of both ends of the second continuous paper group W10 (W10 ′), the second continuous paper group Transmission of force in the traveling direction is performed equally in the vicinity of both ends in the width direction of W10 (W10 ′). Therefore, the balance of the traveling tension is maintained in the width direction, and no deviation occurs.

  Due to the above-described effects, it is possible to prevent the second continuous paper group W10 (W10 ') from being biased and meandering that occurs in the paper path of the transfer device during traveling.

  The step between the large-diameter portion X and the small-diameter portion Y provided on the transfer rollers R1, R2, and R3 ′ is about 1 mm, and a fold line mark due to the step is left on the second continuous paper group W10 (W10 ′). There is nothing.

  In the present embodiment, the second continuous paper group is formed using a balloon former, but the means for forming the second continuous paper group is not limited to this.

  Moreover, the number of arrangement | positioning of the large diameter part of a transfer roller, and the installation position of a transfer roller are not limited to this embodiment, It can change in the range which does not deviate from a claim.

FIG. 6 is a schematic view of the folding machine F provided with the transfer device R of the present invention, as viewed from the AA arrow in FIG. 5. The perspective view which expands and shows the relationship between the transfer roller R1 and the 2nd continuous paper group W10 in the transfer apparatus R shown in FIG. The perspective view which expands and shows the relationship between transfer roller R2 and R3 and 2nd continuous paper group W10 'in the transfer apparatus R shown in FIG. The perspective view which expands the relationship with 2nd continuous paper group W10 'by replacing the transfer roller R3 shown in FIG. 3 with another transfer roller R3'. The whole figure which shows the outline | summary of the newspaper rotary press provided with the transfer apparatus R of this invention.

Explanation of symbols

B1, B2, B3, B4: Paper feeding part T1, T2, T3, T4: Printing part F: Folding machine L: Rail frame part F11: Lower former F21: Balloon former U11, U21; Forming rollers K1, K2, K3 , K4, K5: slitter knives D11, D12, D21: drag rollers W1, W2, W3, W4: 4-page continuous paper W11, W21, W31, W41: one side of 2 page width (half width) Continuous paper W12, W22, W32, W42: The other side continuous paper W11a, W11b, W12a, W12b of 2 pages width (1/2 width): Continuous paper Z1, Z2, 1 page width (1/4 width) Z3, Z4: Aligned turn bar W10: Second continuous paper group W10 ′ composed of continuous paper W11a, W11b, W12a, W12b: Consisting of a larger number of continuous paper than continuous paper W10 Second continuous paper group W20: first continuous paper group M1a, M1b consisting of continuous paper W11, W21, W31, W41, W12, W22, W32, W42: nipping roller N1a, N1b: first nipping roller N2a, N2b: second nipping rollers N3a, N3b: third nipping roller C1: saw cylinder C2: folding cylinder C3: folding roller C4: delivery fan C5: conveyor R: transfer devices R1, R2, R3, R3 ′: transfer Roller X: Transfer roller large diameter part Y: Transfer roller small diameter part

Claims (1)

The width of the first continuous paper group is a width that is the same as the width dimension of the first continuous paper group that is overlapped with a plurality of continuous papers and vertically folded to a half width by the former, and the first continuous paper group that has been vertically folded by the former. Ri, the transfer device of a folding machine for creating a second web group and superimposed folded newspapers fed into the saw cylinder and folding Donoma by Ding superposed plurality of the continuous paper above said former,
The second continuous paper group is provided such that at least three transfer rollers are provided so that the second continuous paper group can be guided from the upper side of the former to a substantially vertical lower side, and at least two of them are rotationally driven.
The two driven transfer rollers are brought close to each other, and at least one of the transfer rollers is provided with a step on the outer peripheral surface in a range where the continuous paper is in contact with the large diameter portion and the small diameter portion alternately adjacent to each other in the axial direction. A folder transfer device, characterized in that it is provided with at least one arrangement which is a roller and is in contact with one side and the other side of the second continuous paper group with a winding angle .

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