JPH0729725B2 - Folding machine moving device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a folding machine attached to a web-fed rotary printing press, in which a former for half-folding a web in a width direction is moved according to a paper size. It relates to the device.

[Conventional technology]

The web-fed rotary printing press is equipped with a folding machine that cuts and folds a dried and cooled web after printing. In this folding machine,
It is equipped with a former that folds the web in half widthwise, a group of origami cylinders that cuts and folds the web in the lengthwise direction, and a chipping device that folds the web at right angles. Therefore, these are selected and used.

The former is formed in the shape of an inverted triangular plate and stands upright as it stands.The web pulled out by the paper-feeding drag roller mounted above it slides on the plane of the inclined former. When it is pulled out by the lower drag roller while touching, it is folded from the center in the width direction, is fed in the direction orthogonal to the sheet feeding direction at the upper end of the former, and is supplied to the parallel folding part.

Conventionally, such a former is a fixed type, and the position of the folding end does not change even if the paper size, that is, the width of the web changes, but the paper size has become extremely small with the recent diversification of printed materials. In the case of things such as things, if the foamer is fixed, it is necessary to move the front side taper device and paper feeding tape etc. every time the paper size changes, so it is required to make the formater movable. Came. Therefore, the applicant of the present invention has proposed a foamer moving device disclosed in Japanese Patent Laid-Open No. 59-209870. This device
The frame and the drag roller above it are supported by a sub-frame, and this sub-frame is movably provided along the rail on the main frame side, and the drag roller drive shaft on the main frame side is rotated and slid by the bearing on the sub-frame side. The rotary body is movably supported and the rotary body supported on the bearing side and the rotary body on the drag roller are drivingly connected to each other by an endless belt. Although the moving device for the sub-frame is not disclosed in the above publication, for example, a screw rod on the main frame side is screwed into a screw hole on the sub-frame side, and the screw rod is driven to rotate by a motor. A structure such as moving the frame is conceivable.

[Problems to be solved by the invention]

However, such a conventional former moving device has an advantage that it can easily cope with various paper sizes and that the drag roller can be driven without load fluctuation regardless of the movement of the former. The main frame and the inner sub-frame are divided and formed, which complicates the overall configuration, expands the installation space, and increases the size of the main frame to secure the strength to support the sub-frame. There was still the problem of turning into something.

[Means for solving problems]

In order to solve such a problem, according to the present invention, the subframes are supported on the left and right frames so that the subframes can advance and retreat in the sheet inserting direction, and the upper end of the former is supported by the subframes, and the sheet is inserted into the former. A roller for guiding the roller is mounted between the left and right sub-frames so as to be orthogonal to the paper input direction, and a base for supporting the lower end of the former is provided so as to be movable back and forth in the same direction as the sub-frame. And a forward / backward drive means for freely moving the base forward and backward are connected to synchronize forward and backward movements, and the sub-frame is disposed only on the upper part of the former.

[Action]

After printing, the web guided to the folder is pulled out by the drag roller and sent to the lower formater, half-folded in the width direction by the former, then guided to the origami cylinder group via the lead roller and cut in the length direction. It will be origami. If the paper size changes, operating the advancing / retreating drive mechanism causes the side frame and the base to move forward and backward simultaneously in the paper input direction, and supports the drag roller supported by the subframe and the upper and lower ends on the subframe and the base. The formed foamer is adjusted forward and backward in the direction of paper entry into the drag roller, and the lead roller is moved in the axial direction, so that the web supplied to the origami cylinder group is moved and adjusted in the width direction to correspond to the paper size. .

〔Example〕

1 to 7 show an embodiment of a foamer moving apparatus according to the present invention. FIG. 1 is a side view thereof, FIG. 2 is a partially cutaway enlarged side view near the base, and FIG. A plan view,
FIG. 4 is an enlarged front view of FIG. 2 as viewed from B, and FIG. 5 is a CC of FIG.
FIG. 6 is an enlarged cross-sectional view, FIG. 6 is an enlarged front view as seen from D in FIG. 1, and FIG. 7 is a developed front view as seen in E in FIG. In the figure, the lower frame 1 in which the origami cylinders for parallel folding are housed is
Front and rear frames 1a, 1b erected on a base (not shown)
The upper ends of the frames 1a and 1b are connected by a pair of left and right corner stays 1e and 1f fixedly supported on the horizontal L-shaped steels 1c and 1d. In addition, corner stay 1e,
The outer dimensions and parallelism of 1f are regulated by four reference pins 2 shown in FIG. 4 which are accurately positioned and implanted in the frames 1a and 1b. On the lower frame 1 configured in this way, a main frame 3 to be described later is provided.
The upper frame 5 divided into the subframe 4 and the subframe 4 is provided upright. The main frame 3 includes left and right frame bodies 3a and 3b, which are formed in a vertically long trapezoidal shape and whose lower ends are fixed to the frames 1a and 1b. The four corners at the top, bottom, front and rear of the main frame 3 are round stays 3c and 3d. They are connected by angle stays 3e and 3f having an L-shaped cross section. The sub-frame 4 includes a pair of left and right frame bodies 4a and 4b formed in a trapezoidal shape, and three of them.
The circular stays 4c and 4d connecting the points and the channel stay 4e having a U-shaped cross section form a frame, and are mounted on the frame bodies 3a and 3b of the main frame 3. The sub-frame has slide guides 6 bolted to the lower ends of the frame bodies 4a and 4b at the two lower ends, and attached to the upper end portions of the side surfaces of the main frame bodies 3a and 3b. 6 is slidably contacted with the web 7, and the web 7 is adjusted to move in and out in the paper-feed direction. The reference numeral 8 in FIG. 7 is a grease-filling concave hole provided on the lower surface of the frame main bodies 4a, 4b over substantially the entire length thereof. Is configured to.
Reference numeral 9 is a stopper for the slide guide 6 fixed to the frame bodies 3a, 3b.

On the other hand, a base 10 formed in a rectangular shape in a plan view is placed on the pair of corner stays 1e and 1f, and the base 10 is a slide guide which is bolted to the four corners thereof and hangs down. 11 is attached to the side surfaces of the corner stays 1e and 1f,
The slide guide 11 is slidably contacted by an advancing / retreating drive device, which will be described later, so as to be adjusted in the same direction as the side frame 4. Reference numeral 10a is a grease-filling concave hole for smoothing the forward and backward movement of the base 10.

In the center of the sub-frame 4, a drag roller 12 is mounted on a bearing 14 in a bearing case 13 fitted to the frame bodies 4a and 4b with both end shafts pivotally supported. Is directly connected to a motor 16 supported by a frame body 4a via a motor base 15. Then, the drag roller 12 is rotated by the rotation of the motor 16, and after printing,
It is configured to pull out the web guided to the folder.
17 is a snap ring on the protrusion of each bearing case 13
A split band that is rotatably fitted and prevented from coming off by means of a square stay 19 between the lower ends of these split bands 17.
Is supported by being bolted at both ends, and the corner stay 19 is bolted at the upper end of a forma 20 formed in an inverted triangular shape. The phoma 20 is inclined downward in the direction toward the stay 3d,
A support fitting 21 is fixed to the lower part thereof. On the other hand, a bracket 22 having a U-shaped cross-section is fixed to one end of the base 10, and a pin 23 having a flat portion in the center is axially attached by a snap ring 24 to a bearing portion formed at an upper end portion thereof. The movement of the stay 25 is regulated and is axially supported, and the other end of the stay 25 screwed to the pin 23 so as to be adjustable forward and backward is pivotally attached to the support fitting 21 by the pin 26. That is, Form 21
Is supported by the split band 17 and the stay 25 at two upper and lower positions. By adjusting the attachment portion of the stay 25 to the pin 23, the stay band is rotated together with the split band 17 and the inclination angle is adjusted. Is configured to. Reference numeral 27 is an air pipe fixed to the main frame 3 and connected to an air source (not shown), the other end of which is guided to the former 20 and is slidably brought into contact with the surface of the former 20 and drawn downward. It is configured to blow air onto the half-folded web 7. Furthermore, three support plates 28 are provided on each of the front and rear ends of the base 10.
Are erected by bolting them from the back surface of the base 10. The front and rear support plates 28 are divided into left and right two at the center, that is, a screw rod 30 with 29 is attached to its step and knob.
29 and 29 are restricted from moving in the axial direction and are rotatably supported respectively. Further, a bearing 31 is supported in each screw rod 30 by screwing a screw hole into each screw rod 30, and each bearing 31 has a knob.
A threaded rod 33 with 32 is rotatably fitted with its stepped portion and the collar 34 so as to be restricted from moving in the axial direction. Reference numeral 35 denotes a pair of lead rollers that are screwed into the screw rods 33 of the both end shafts 35a and are mounted in parallel with each other.The lead rollers are horizontally held by gripping the knobs 32 and rotating the screw rods 33. The knob 29 is gripped and the screw rod 30 is rotated to finely adjust the distance between the rollers corresponding to the paper thickness and the perpendicularity with respect to the drag roller 12. It is configured to be.

Next, an advancing / retreating drive device for advancing / retreating the side frame 4 and the base 10 at the same time will be described. The angle stay 3f at the lower end of the main frame 3 has a horizontal bearing fitting 36
And a T-shaped bearing fitting 37 are fixed, and a horizontal bearing fitting 38 is fixed to the angle stay 3e at the upper end of the main frame 3, and these bearing fittings 36, 37, 38 are fixed.
A vertical shaft 41, whose movement in the axial direction is restricted by a sprocket 39 and a collar 40, is rotatably supported by the. Sixth
What is indicated by reference numeral 42 in the drawing is a geared brake motor with a reducer vertically fixed to a bracket 43 protruding horizontally from the angle stay 3f, and a sprocket 44 and the above-mentioned sprocket 44 axially attached to the motor shaft. A chain 45 is stretched between the sprocket 39 and the sprocket 39, and the vertical shaft is rotated at a low speed by the rotation of the motor 42. Three bearing brackets fixed to the upper angle stay 3e
A horizontal shaft 51, which is drivingly connected to the vertical shaft 41 by bevel gears 49 and 50, is rotatably supported by the bevel gears 49 and the collar 52 on the shafts 46, 47, and 48. Bevel gears 53 and 54 are axially attached to both ends thereof. Furthermore, the pair of screw shafts 59, whose axial movement is restricted by the collars 57, 58 of the bearing fittings 55, 56 fixed to both ends of the angle stay 3e, are axially supported by the collars 57, 58, respectively. A bevel gear 61, which is screwed into a screw hole of a screw fitting 60 projecting from the side frame 4 and is axially attached to the screw shaft 59, meshes with the bevel gears 53 and 54, respectively. On the other hand, the bearing fitting 37 fixed to the angle stay 3f at the lower end is connected to the vertical shaft 41 and the screw shaft 64 which is drivingly connected by the bevel gears 62 and 63.
Is rotatably supported by the collars 65 and 66 with its axial movement restricted, and the other end of this screw shaft 64 is screwed into a screw hole provided in the bracket 22 on the base 10. Have been combined. With this configuration, the motor 42
When the vertical shaft 41 is driven to rotate, the upper and lower screw shafts 59 and 64 rotate synchronously due to the engagement of the bevel gear, and the side frame 4 and the base 10 simultaneously move along with the drag roller 12, the former 20 and the lead roller 35. Move back and forth in the same direction.

The operation of the formater configured as above will be described. The web 7 guided from the printing unit to the folder is passed through the drag roller 12, the former 20 and the lead roller 35 and passed through the group of parallel folding origami cylinders in the lower former 1. When the printing operation is started, the dried and cooled web 7 is drawn downward by the drag roller 12, the drag roller (not shown) below the lead roller 35, and the printing cylinder group after printing. This web 7 is folded in half in the width direction by moving from the drag roller 12 to the lead roller 35 while slidingly contacting the surface of the inverted triangular forma 20.
Position the fold end to the right in the direction of Fig. 1 and set the lead roller
It is sent to 35. At this time, the lead roller 35 grips the knobs 29 and 32, and rotates the screw rods 30 and 33.
The horizontalness, parallelism, and the spacing corresponding to the paper thickness are adjusted.

When the width of the web 7 is changed, the motor 42
The vertical axis 41 is rotated by the chain 45 when
Since the horizontal shaft 51 is rotated by the meshing of the bevel gears 49, 50, the screw shafts 59 on both sides are synchronously rotated by the meshing of the bevel gears 53, 59 and 54, 59. On the other hand, as the vertical shaft 41 rotates, the lower screw shaft 64, which is drivingly connected by the bevel gears 62 and 63, also rotates. In this way, the upper and lower screw shafts 59, 64 are synchronously rotated so that the side frame 4 and the base 10 are simultaneously moved back and forth in the same direction along the main frame 3 and the corner stays 1e, 1f, and the side frame 4 and An integral drag roller, a framer 20 supported up and down by the side frame 4 and the base 10, and a lead roller 35 supported by the base 10 are integrated with the side frame 4 and the base 10 in the axial direction of the lead roller 35. Movement adjusted. Since the lead roller 35 and the origami cylinder group are axially parallel to each other, the half-folded web guided to the origami cylinder group is moved in the axial direction of the origami cylinder group as a result of the lead roller 35 being moved and adjusted in the axial direction. Since it moves, the size of the web 7 can be dealt with.

〔The invention's effect〕

As is apparent from the above description, according to the present invention, in the frame moving apparatus of the folding machine, the subframes are supported on the left and right frames so as to be movable back and forth in the sheet feeding direction, and the upper end portion of the former is supported by the subframes. In addition, a roller that guides the input of paper to the former is mounted perpendicular to the paper input direction and is axially mounted between the left and right subframes, and a base that supports the lower end of the former is moved in the same direction as the subframe. The forward / backward drive means is provided so that the forward / backward movement is possible, and the forward / backward drive means for moving the forward / backward movement of the subframe and the base are connected to each other to synchronize forward / backward movement. The side frame and the base, and therefore the drag roller and the former, which are integrated with these, and the lead roller are simultaneously attached to the lead roller shaft. Since the main frames on both sides have a single structure in the machine width direction, the structure is simplified and the installation space is smaller than the conventional two-frame structure. In addition to being reduced in size, the entire structure can be made compact and the manufacturing cost can be reduced. Further, the moving operation is easy, the operability is improved, and the maintenance is easy.

Further, the subframe for moving the former and the base are divided from the frame, the subframe is provided only on the upper part of the former, and there is no intervening between the subframe and the base. Is lightweight, and therefore, the movement can be performed smoothly and the output of the motor of the drive source for driving the advancing / retreating drive means can be reduced.

[Brief description of drawings]

1 to 7 show an embodiment of the apparatus for moving a folder of a folding machine according to the present invention. FIG. 1 is a side view thereof, FIG. 2 is a partially cutaway enlarged side view near the base, and FIG. FIG. 2 is a plan view from A, FIG. 4 is an enlarged front view from B in FIG. 2, FIG. 5 is an enlarged sectional view from CC in FIG. 2, and FIG. 6 is an enlarged front view from D in FIG. FIG. 7 is a developed front view of FIG. 1 ... Lower frame, 1e, 1f ... Square stay, 3 ... Main frame, 4 ... Subframe, 5 ... Upper frame, 10 ... Base, 12 ... Drag roller, 13 ... Bearing case, 17 ... … Split band, 20… Foma, 22…
… Bracket, 25 …… Stay, 35 …… Lead roller, 41
...... Vertical axis, 42 ...... Motor, 45 …… Chain, 49, 50, 5
3,54,57,62,63 …… Bevel gear, 51 …… Horizontal axis, 59,64…
… Screw shaft.

Claims (1)

[Claims] 1. Sub-frames are supported on the left and right frames so that they can move forward and backward in the sheet feeding direction, the upper end of the former is supported by the sub-frames, and rollers for guiding the sheet feeding to the former are set in the sheet feeding direction. A base that supports the lower end of the former is provided so as to extend vertically in the same direction as that of the former, while being vertically mounted between the left and right subframes, so that the subframe and the base can be moved forward and backward respectively. A former moving device for a folding machine, characterized in that the advancing / retreating driving means is connected to synchronize the advancing / retreating operation, and the subframe is disposed only on the upper part of the former.