JPS6026680B2 - Unbound book cutting machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a top, bottom and front edge cutting blade, an unbound book holder located between the cutting plane and continuous with the unbound book transport path;
It has a conveyance plane that is disposed in the area of the pedestal, forms a surface co-rutting with the pedestal, and operates in the direction of the conveyance path, and the unbound book on the pedestal is placed on the conveyance plane. This invention relates to an unbound book cutting machine that comes in contact with

The above cutting machine is described, for example, in Swiss Patent No. 340,479.

This known machine is particularly suitable for three-sided edge cutting of thin, unbound books and booklets. Since thin booklets have a small weight and low inertia, they can be quickly braked and then accelerated again when passing the cut material onto the table of the cutting machine. Therefore, even if the belt conveyor continues to move beneath the booklet, which is stationary during the cutting process, it will not create folds that could damage the unbound book.
(reifen) does not occur. However, when cutting thick bound books, the moving belt conveyor forms folds both in the unbound books that are stationary for cutting and in the unbound books that have been cut. This can make the book look bad and make it no longer usable in the next process. SUMMARY OF THE INVENTION An object of the present invention is to provide a cutting machine that can quickly remove unbound books from the cutting machine without damaging them after the cutting process and release them for the next process.

The above object was achieved in the following manner in the present invention.

That is, in the cutting machine of the present invention, the pressing device is disposed so as to be movable between one limit position adjacent to the conveyance plane and the other limit position separated from the conveyance plane, and the pressing device is composed of rollers. It has a pressing surface, the roller rotation axis is aligned so as to cross the acting direction of the conveying plane and be parallel to the conveying plane, the conveying plane can be driven intermittently, and at least the forward movement of the conveying plane starts. At times, means are provided for holding the hold-down device in a limit position adjacent to said transport plane. Embodiments of the present invention shown in the drawings will be described below.

Reference numeral 1 indicates a holder for an unbound book 2 to be cut in a single workbench type cutting machine.

Side blades 3 spaced apart from each other are provided for performing top and bottom cuts. Only one of them is visible in the drawing. Cutting of the front edge is performed by a swingable front edge cutting blade 4. Details of the structure, operation, etc. of these blades 3 and 4 can be found in Swiss patent application No. 8122/77.
Since it is the same as that described in No. 1, and is not an essential part of the present invention, detailed explanation thereof will be omitted here. The support plane 6 formed by the cradle 1 also constitutes a transport plane at the same time.

The upper horizontal reduction of the intermittently driven endless compare belt 6 becomes a surface cooperating with the support plane 5, in which the belt 6 is driven in the direction of the arrow shown in the figure and functions as a conveying means. fulfill. The pedestal 1 also serves as a counter-cutting tool for the cutting tools 3 and 4 at the same time. Two dowels 7, 8, which can be moved symmetrically onto the pedestal 1 into the transport path of the unbound books 2, cooperate with a pushing device 9 to push the unbound books 2 onto the support plane 5. is specified at the regular cutting position. During the cutting operation of the press device 10, that is, while the blades 3 and 4 are lowered toward the pedestal 1, the unbound book 5 is pressed to fix the unbound book 2 so that it does not shift. The pedestal 1 consists of three solid bodies 11 which are spaced parallel to each other and whose end faces are connected, the upper flat surfaces of these solid bodies 11 forming a support plane 5 .

The two outer solid bodies 11 and the connecting parts on both sides of the cutter 3
, 4 constitutes an opposing cutter 11'. Two shafts 12, 13 are supported between the two solid bodies 11, and two guide rolls 14, 15 are fixed to these shafts, respectively.

A conveyor bell 6 is wound around guide rolls 14, 15 aligned in the conveying direction. Also, axis 13
A pinion 17 is supported on and meshes with the segment gear 18. The segment gear 18 is swingably supported on a shaft 19 and integrally connected to a bending lever 20. The bending lever 20 has a cam roller 21 at its free end. The segment gear 18 is pulled into one extreme position shown in FIG. 1 by a preloaded coil spring 22. Cam roller 21 thereby maintains contact with cam 23.
The cam 23 is fixed to a shaft 24 and can rotate in the direction of the illustrated arrow. As the shaft 24 rotates, the segment gear 18 is caused to reciprocate according to the curve shown in FIG. In the oscillating movement from the right-hand limit position to the left-hand limit position, the pinion 17 rotates freely without frictional connection with the shaft 13, whereas in the oscillating movement in the opposite direction, the pinion 17 rotates freely without frictional connection with the shaft 13.
rotates together with the pinion 17. Thereby, the belt conveyor 6 is driven intermittently. Regarding curve 25 in FIG. 3, this means that the belt conveyor 6 moves in the direction of the arrow shown in the ascending part of the curve;
It means coming to rest on the descending part of the curve. Support plane 5
The press device 10 that acts toward the vertical sliding bearing 2
6 has a plunger 27 supported vertically movably.

The plunger 27 has a two-part press plate 28 at its lower end. The pressing plate in front of this pressing plate is omitted in the drawing. A spring force 29, indicated by an arrow acting downwardly towards the support plane 5, acts perpendicularly on the plunger 27. The plunger 27 is raised and lowered by a two-arm lever 30. This lever is
One end is connected to a pivot shaft 31 and supported by a rotating shaft 32 . A lifting rod 33 is pivotally connected to the other free arm of the lever 30, and the other end of the rod 33 is pinned at 34 to one arm of a bent lever 35. Fixed shaft 36
The bending lever 35, which can be pivoted about, has a cam roller 37 at the end of its other arm. Corolla 37 moves over cam 38. Cam 38 is also secured to shaft 24. As shown by the movement curve 39 (FIG. 3) of the pressing plate 28, the pressing plate slope 28 is raised during the forward movement of the belt conveyor 6, and is lowered again, so that when the belt conveyor 6 is stationary, the lower side Take the limit position. A roller rotation shaft 40 is fixedly installed between the two pressure plates 28, and two parallel roller supports 41 each having a shaft 73 having a large number of pressure rollers 42 are pivotally connected to the four shafts. has been done.

The two roller supports 41 are connected to each other by a connecting plate 44.

A connecting plate 45 fixed between the two pressing plates 28 is placed to face the connecting plate 44 described above.

A coil 46 is stretched between the connecting plates 44 and 45. This coil spring 46 can swing the depressed roller support 41 upward. These members 40 and 46 constitute a pressing means. The motion curve is shown at 39' in FIG. As is clear from this figure, when the pressing plate 28 starts rising, there is no pressing means 40;
The spring 46 continues to remain in the lower limit position until the coil spring 46 is completely released. Next, the pressing means is the pressing plate 28
At the same time, it is raised to the upper limit position. When the pressing plate 28 is lowered, without the pressing means 40, the pressing means 46 precedes the pressing plate 28 and reaches the lower limit position before the pressing plate 28 does.
That is, it is placed on the unbound book before the pressing plate 28 is placed. At the same time, the pressing means 40 to 46 press against the unbound books 2 at the beginning of the forward stroke of the belt conveyor 6, so that the unbound books are accelerated by the belt conveyor 6 without slipping and therefore without folding. The pads 7 and 8 each have a side pad 47 and a back pad 48. The side pads 47 press the unbound book 2 from both the top and bottom edge sides,
On the other hand, the spine pad 48 cooperates with the pushing device 9 to align the spines of unbound books at right angles to the transport direction. Each side pad 47 has a slit 49 that is long in the conveyance direction. A corresponding backrest 48 is supported in the slit 49 so as to be movable in the longitudinal direction, and can be fixed with five screws depending on the size of the unbound book. Each of the pads 7 and 8 is fixed to a pivot shaft 52 via a corresponding lever 51. Each pivot shaft 52 is rotatably supported by a bearing body 53 and is fixed to a lever 54 . Lever 5
1 and 54 constitute a two-arm lever. Lever 5
A cam roller 55 is supported at the end of 4. The cam roller 55 is guided on a horizontally arranged U-shaped rail 56. Since the pair of levers 54 are symmetrical with respect to the longitudinal center line of the machine, when the U-shaped rail 56 is vertically moved up and down, the pads 7 and 8 perform a symmetrical pivoting movement accordingly. The U-shaped guide rail 56 has a fixed pivot shaft 58,5
9 as a fixed fulcrum, it is fixed to a parallelogram link 57 that is vertically movable. Therefore, the rail 56 can move up and down. A push rod 60 is attached to the parallelogram link 57. The pressed twill 60 is, via the rotating shaft portion 61,
It is connected to a bending lever 62 that can swing freely around a shaft 63. A cam roller 65 supported at the free end of one arm of the bending lever 62 is attached to a cam 66 fixed to the shaft 24.
It is pressed by the biasing force of the spring 64. The cam 66 is configured such that at the beginning of the forward stroke of the belt conveyor 6, indicated by the curve 25 in FIG. 3, the parallelogram link 57 assumes an upper limit position according to the curve 67 in FIG. In this limit position, the dowels 7 and 8 are pivoted upwardly and laterally. Immediately before the end of the forward movement of the belt conveyor 6, the pads 7 and 8 are again downward and the unbound books 2
into the transport path. The bearing body 53 is movably supported by the horizontal cylindrical guide light 16, and can be fixed at any desired moving position with a screw. Thereby, the pads 7 and 8 can be adjusted to match the height of the unbound book to be processed. The roller 55 remains within the U-shaped rail 56 even if the relative distance of the pads 7, 8 changes. The vertical movement of the rail 56 can then pivot the dowels 7 and 8 independently of the spacing determined by the book size. While checking the pressure plate 28 in this way,
The top and bottom of the unbound book 2 can be accurately positioned. The pushing device 9 has conveyor belts 68 running parallel to each other and in the direction of the arrow.

The conveyor belt 68 conveys the incoming bound books towards the support plane 5 . In order to quickly push up the bound book 2 onto the support plane 5, the pushing member 69 is supported by rollers 70 on a rail 71 so as to be able to swing back and forth. Here, the front limit position is adjacent to the support plane 5 and the rear limit position is remote from the support plane. The rail 71 can swing up and down centering on the horizontal ball 73. rail 7
1 movement is performed by a cam 73. The cam roller 77 of the lacquer bar 75, which rotates around the fixed ball 74, rotates around the spring 76.
comes into contact with the cam 73 by the action of. The movement of the lever 75 is controlled by the push rod 7.
8 to the rail 71. The movement of rail 71 is shown in FIG. 3 by curve 79. According to it, rail 71
takes the lower limit position at the beginning of the forward stroke of the belt conveyor 6, is moved upward approximately halfway through the forward stroke, and when it reaches the upper limit position at the end of the forward stroke, the movement control lever of the pushing member 69 is activated. It is held across eight rivers. One end of the lever 80 is swingably supported around a shaft 81,
The other end is connected to the push-in section 69 via a link 82. A spring 83 urges a cam roller 84 supported on lever 80 toward cam 85 . The cam 85 and the cam 73 are fixed to a shaft 86. The movement of pusher member 69 is shown in FIG. 3 by curve 87. Approximately halfway through the forward movement of the belt conveyor 6, the pushing member 69 is moved forward from the rear limit position away from the support plane 5, towards the support plane 5, and at the end of the forward movement of the belt conveyor 6, the push member 69 is moved from the rear limit position away from the support plane 5 to the front limit position. reach the position. Here, before the start of a new forward stroke of the belt conveyor 6, the pushing member 69 is moved backward. As can be seen by comparing curves 79 and 87, when rail 71 reaches its upper limit position, pushing member 69
are simultaneously moved into the front limit position, with the rail 71 reaching the upper limit position before the push-in member 69 reaches this front limit position. On the other hand, rail 7
1 reaches the lower limit position, the pushing member 69 reaches the rear limit position. A transfer device 88 is provided to bridge the gap between the end of the conveyor belt 68 on the one hand and the support plane 5 on the other hand. This transfer device 88
The bridge flap 8 is swingably supported on a shaft 90.
It has 9. The two-arm lever 91 swings the bridge flap 89 via the push shaft 92.

Its movement is controlled by another cam 93 mounted on the shaft 86. Lever 91 contacts cam 93 via cam roller 95 under the action of spring 94 . The lever 91 itself can swing around a fixed shaft 96. Curve 97 in FIG. 3 shows the movement of bridge flap 89. While the pushing member 69 is moving forward from the rear limit position to the front limit position, it is in the horizontal position shown in FIG. When it rests on the plane 5, it is already pivoted downwards. The horizontal axis of FIG. 3 shows the rotational positions of the shafts 24 and 86 in degrees.

The curve 98 shows the movement rhythm of the front edge cutting blade 4;
Curve 99 shows the rhythm of the movement of the side cutting blades 3. If the unbound book 2 touches the pads 7 and 8 on the support plane 5 at the initial position (00 to 80o), the front edge cutting blade 4 (curve 9
8) takes the upper limit position again after cutting the front edge, but the side cutting blade 3 finishes cutting the leg. The bridge flap 89 is swung downward and positioned (curve 9
7). The push-in section 9 (curve 87) is in its rear limit position, while the rail 71 (curve 79) is pivoted downwards. The dowels 7, 8 (curve 67) are pivoted away laterally and upwardly. The belt conveyor 6 is stationary and the segment gear 18 is reversed to the left extreme position (curve 25). The pressing plate 28 (curve 39) presses the top of the unbound book 2, and at the same time the pressing member 40 presses the unbound book 2, albeit with a slight force. When the cutting of the side part by the side cutting blade 3 is completed (800 to 2400)
Immediately, the pressing plate 28 is pushed up and the forward movement of the belt conveyor 6 begins (curves 25 and 39). Pressing plate 28
At the initial stage of the rise (from 80o to 130o), the pressing roller 42 continues to press the unbound books 2 (curve 39'), so the belt conveyor 6 is accelerated without slipping due to large friction on the unbound books 2. . The cut unbound books are transferred by the belt conveyor 6 to the connected belt conveyor 10, and sent to a stacking bag hawker (not shown). Since the pressure roller 42 applies uniform pressure on the unbound books 2, the unbound books 2 come into uniform contact with the belt conveyor 6. curve 39'
As shown, by adjusting the swinging stroke of the roller support 41, the rollers 42 press the bound books 2 against the belt conveyor 6 after the pressing plate 28 lifts up and the belt conveyor 6 starts moving forward. A period can be determined. Since there is no slip when the unbound books 2 are in contact with the belt conveyor 6, the belt conveyor 6 can be driven from the rest position at high acceleration, and the unbound books 2 can be removed from the cutting table. The slip-free frictional connection between the unbound books 2 and the belt conveyor 6 on the one hand prevents the formation of folds in the lowest sheet, and on the other hand allows the unbound books to be quickly removed from the cutting table. Approximately 26
After this, the forward movement of the belt conveyor 6 ends and the next unbound book 2 is positioned by the pushing member 62 against the pads 7, 8 (curve 67) positioned in the travel path. At this point, the front edge cutting blade (curve 98) has already descended to the point where it starts its actual cutting operation, while the side cutting blade 3 has almost reached its upper reversal point. The cooperation of the push-in element 9 and the dowels 7, 8, in particular in connection with the transfer device 88, results in a rapid feeding of the incoming bound book to the cutting table, while the pressing means 40 or 46 and the intermittently driven belt conveyor 6 provides rapid removal of shredded, unbound books 2.

[Brief explanation of the drawing]

Figure 1 is a partially omitted side view of a cutting machine with a cutting table;
The figure is a partially omitted front view seen from the direction of arrow D in FIG. 1, and FIG. 3 is a diagram showing the motion curves of the main components of the cutting machine of FIG. 1. 2... Unbound book, 3... Top and bottom cutting blade, 4... Front edge cutting blade, 5... Receiver, 6... Conveyance plane, 7, 8...
- Pad, 9... Pushing device, 28... Pressing plate, 3
1... Rotating axis, 32... Rotating axis, 33... Pushing shaft,
35... Bending lever, 37... Force roller, 38... Force ram, 42... Loaf, 43... Roller rotation axis, 46...
Coil spring, 48...Backrest. FIG. 2 FIG. 3

Claims (1)

[Claims] 1. A cutting knife 3 for cutting the top, bottom and front edge of an unbound book.
. The unbound book cutting machine has a transporting means 6 which has a mounting surface and can be driven to transport in the direction of the transport path, and the unbound book 2 placed on the pedestal 5 is supported by the transporting means 6. In the machine, the pressing means 40 to 46 are provided so as to be able to reciprocate between one limit position close to the conveying means 6 and the other limit position spaced apart from the conveying means, and the pressing means 40 to 46 are provided with a plurality of rollers 42. Each roller rotation axis 4 for these rollers has a pressing surface consisting of
3 are arranged in a direction transverse to the conveying direction of the conveying means and are parallel to the conveying means, and this conveying means is driven intermittently, and at least at the beginning of the forward movement of the conveying means, the pressing means An unbound book cutting machine characterized in that it is provided with means 26 to 38 for holding the books at a limit position close to the conveying means. 2. Said holding means 26 to 38 constitute a pressing element for pressing the unbound book 2 against the pedestal 5 during the cutting process, said pressing element having an upper limit position remote from the pedestal and an upper limit position close to the pedestal. The pressing means 40 to 46 are supported by a pressing element, and the pressing means 40 to 46 are supported by a pressing element, and a side closer to and a side away from the conveying means 6 relative to the pressing element. supported so that it can be moved to
2. The cutting machine according to claim 1, wherein the pressing means is brought into contact with the pressing element by a spring 46 and is pressed by the spring 46 in a direction approaching the conveying means. 3. The cutting machine according to claim 2, wherein one end of the pressing means 40 to 46 is swingably supported by the pressing elements 26 to 38. 4. The cutting machine according to claim 1, wherein the conveying means 6 comprises one or more belt conveyors moving in the direction of the conveying path. 5. According to claim 1, one stopper 7, 8 is disposed on the end area of the conveying means 6 on the side of the pedestal 5 from both sides so that they can enter and exit the conveying path at the same time. The cutting machine mentioned. 6. According to claim 5, each of the pads 7 and 8 is movably and fixedly supported by a rod 16 extending parallel to the conveyance means 6 across the conveyance path through a bearing body 53. The cutting machine mentioned. 7 Each bearing 53 has a pivot shaft 52 parallel to the conveyance path, two-arm levers 51 and 54 are swingably supported on each pivot shaft, and the pair of two-arm levers are pivoted relative to the conveyance path. A backrest 48 is supported at the end of one lever 51 of the two-armed levers, and the driving means 2 is symmetrically arranged.
7. The cutting machine according to claim 6, wherein the swinging mechanisms 56 to 65 operated by the levers 4 and 66 are connected to the end of the other lever 55 of the two-arm lever. 8 A cam roller 55 is disposed at the end of the other lever 54 of the two-arm levers 51 and 54, and is mounted on a guide rail 56 so that it can move up and down perpendicularly to the base surface formed by the conveying means 6. A cutting machine according to claim 7, which is supported. 9 Each back pad 48 is connected to a side pad 47 parallel to the conveyance path.
The cutting machine according to claim 8, wherein the cutting machine is fixed to the cutting machine so as to be movable in the longitudinal direction. 10 A second conveying means 68 that operates toward the conveying means 6 is disposed on the unbound book conveying path in front of the conveying means 6, and this second conveying means 68 is connected to the first conveying means 6. A cutting machine according to claim 1, comprising a pushing device (9) operative towards the means (6). 11 The pushing device is arranged between a front limit position close to the first conveyor means 6 and a rear limit position remote from the first conveyor plane, and between an upper limit position above and below the second conveyor means 68. The pushing device is supported so as to be movable in the direction of the conveying path between the side limit positions, and when moving from the rear limit position to the front limit position, the pushing device is raised to the upper limit position;
The cutting machine according to claim 10, further comprising operating means 73, 85 for lowering the cutting machine to the lower limit position when moving from the front limit position to the rear limit position. 12 The transfer device 88 connects the first and second transport means 6, 6
8 and is swingable away from both means, at least in the initial stage of the movement of the pushing device 9 from the rear limit position to the front limit position, the transfer device is aligned between the two conveying means. 12. The cutting machine according to claim 11, further comprising a control means 93 for maintaining the cutting line in line between the cutters.