JP5968087B2 - Three-way cutting machine with booklet support mechanism - Google Patents

Description

  The present invention relates to a three-way cutting machine having a booklet support mechanism.

In some cases, a booklet with a cover attached to the back of the booklet and bound to the back is sent to a three-way cutting machine, where the booklet is finished by cutting off the booklet's forehead and top and bottom. FIG. 4 shows an example of the configuration of a three-way cutting machine in this case. Referring to FIG. 4, H is a booklet with a cover, with the top of the booklet at the top and the booklet edge on the outside (right side in the figure). ) And is conveyed from, for example, a saddle stitching bookbinding machine via the conveyance path 1, and the booklet H is placed on the carry-in belt conveyor 2 of the three-way cutting machine and positioned in contact with the positioning stopper 3.

The booklet H positioned by the positioning stopper 3 is pushed and moved by the pusher 4 waiting on the small edge side of the booklet H toward the small edge cutting portion A provided with the small edge cutting blade 5 of the booklet H, and the small edge of the booklet H is cut. Positioning is performed so that the position is located below the fore edge cutting blade 5, the fore edge of the booklet H is cut by lowering the fore edge cutting blade 5.

Then, the booklet H whose front end is cut is gripped by the upper chuck and the lower chuck of the chuck mechanism 6, and the booklet H that is held is parallel to the top cutting blade 7 that cuts the top and the ground cutting blade 8 that cuts the ground of the booklet H in parallel. The top and bottom cutting blades 7 and 8 are lowered after positioning to cut the top and the bottom of the booklet. At that time, the chuck 6 passes under the booklet from which the booklet H is released and returns to the standby position, and waits for the next booklet H to be cut. The booklet H that has been cut upside down is gripped by the chuck 9, carried to the discharge path 10, and discharged.

In general, the top and bottom cutting section B of a three-way cutting machine includes a cutting table for positioning and placing a booklet H to be cut, a pressing plate for pressing the booklet H placed on the cutting table against the cutting table, and a booklet H pressed by the holding plate. Two cutting machines comprising cutting blades for cutting a predetermined position are divided on both sides of the conveyance path of the booklet H and arranged in parallel with the conveyance path, and the top and bottom of the booklet H to be cut between the two arranged cutting machines. The chuck mechanism that conveys the booklet H from the small-size cutting section A to the top-and-bottom cutting section B is configured to be a space between the two cutting machines. Configured to move.

JP 2004-330409 A JP 2001-252890 A

  In the above-described three-way cutting machine, the top and bottom cutting section B is divided into a cutting table on the top cutting blade 7 side and a cutting table on the ground cutting blade 8 side in a direction perpendicular to the conveyance direction of the booklet. The booklet H that cuts the top and bottom at B is positioned across the divided cutting tables. On the other hand, the width in the direction orthogonal to the booklet transport direction of each cutting table is formed as narrow as possible because it needs to correspond to the booklet with the shortest dimension between the top and bottom, and the transport direction of the upper and lower chucks of the chuck mechanism in particular. The width in the direction orthogonal to is also narrow. Further, the width of the chuck mechanism in the same direction as the conveyance direction of the upper chuck and the lower chuck is also narrow in order to grasp the booklet H on the cutting table of the small edge cutting portion A. Therefore, for example, when the width dimension between the tops and bottoms of the booklet to be cut increases, the space width between the top and bottom cutting tables also increases. When the space width increases, as shown in FIG. 5, when the booklet H gripped by the upper chuck 6a and the lower chuck 6b of the chuck mechanism 6 is placed on the cutting tables on both sides, the booklet H bends, and the press plate on the top cutting blade 7 side. 7a, the pressing plate 8a on the ground cutting blade side cannot be pressed properly, and the cutting surface is disturbed if it is cut as it is, and if the width between the fore edge and back of the booklet to be cut becomes large, the booklet transport direction However, there was a problem of scratching at each cutting table of the bending top and bottom.

The problem to be solved by the present invention is that the booklet to be cut is not scratched and cut regardless of the space width in the direction orthogonal to the booklet transport direction of the top and bottom cutting unit in the three-way cutting machine or the size of the booklet to be cut. It is possible to suppress the disturbance of accuracy and to solve such a problem.

In order to solve the above-described problems, the present invention provides a small cutting section in which a small cutting blade and a cutting table are arranged in a direction orthogonal to the booklet conveying direction, and a top cutting blade on both sides in a direction parallel to the booklet conveying direction. A top and bottom cutting table, a top and bottom cutting section in which a ground cutting blade and a ground cutting table are arranged, and a booklet cut by the small cutting section is transported to the top and bottom cutting section. In the three-way cutting machine having a chuck mechanism for positioning on the top, the chuck mechanism is provided with a swivelable receiving plate that supports the booklet sandwiched between the upper and lower chucks of the chuck mechanism from below in the conveyance direction, and the top and bottom cutting section. in each of the machine frame, the top cutting platform in the circumferential cutting portion and parallel to the respective ground cutting table, freely stay bar out between said upper and lower chuck top cutting board with and between the land cutting table of said upper and lower chuck Provided, when the booklet is sandwiched in the vertical chucks of the chuck mechanism as necessary to reach the top-and-bottom cutting section, by the stay bar and the receiving plate, and a structure for supporting the booklet is sandwiched vertically chuck flatly.

In the present invention, when the size of the booklet is large, when the booklet sandwiched between the upper and lower chucks of the transport chuck mechanism reaches the top and bottom cutting part, the support plate between the top and bottom of the booklet is supported by the receiving plate between the small edge and back of the booklet. Thus, the booklet is supported so as to be flat, so that the booklet can be positioned on the top and bottom cutting tables on both sides without bending the booklet. This ensures that the booklet's top and bottom edges are properly pressed with the presser plate on the top and side cutting blades without scratching the booklet. Decline can be prevented.

It is a top view which shows schematic structure of the three-way cutting machine which concerns on the Example of this invention. It is operation | movement explanatory drawing of the receiving plate seen from the C direction shown in FIG. 1 of the chuck mechanism in the three-way cutting machine shown in FIG. It is operation | movement explanatory drawing of the support bar seen from the D direction shown in FIG. 1 of the top and bottom cutting part in the three-way cutting machine shown in FIG. It is a top view which shows schematic structure of an example of a three-way cutting machine. It is explanatory drawing explaining the problem of the conventional chuck mechanism.

Hereinafter, a three-way cutting machine according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3. In FIG. 1, the same or corresponding parts as those in the conventional three-way cutting shown in FIG. 4 are denoted by the same reference numerals, and detailed description thereof is omitted. In FIG. 1, reference numeral 16 denotes a booklet H whose edge is cut by the edge cutting portion A is held by an upper chuck 16a and a lower chuck 16b (see FIGS. 2 and 3), and the booklet H which is held is cut by the top cutting blade. 7 and a cutting mechanism 8 which cuts the ground of the top cutting table and booklet H, and a chuck mechanism which conveys to the top and bottom cutting section B which includes the ground cutting table in parallel, 17 is a receiving plate which is pivotably attached to the chuck mechanism, and 18a is A support rod 18 is attached to the machine frame on the top cutting side so as to be freely inserted into and removed from the machine frame, 18b is a support rod attached so as to be freely inserted into and removed from the machine frame on the ground cutting side, and C1 to C4 are air cylinders which drive the support rod in and out.

A flat receiving plate 17 having a predetermined length substantially the same as the width of the upper and lower chucks 16a, 16b has a support arm 17a extending obliquely from the lower end as shown in FIG. One end of the support arm 17a is rotatably attached to a base portion extending from below the lower chuck 16b of the chuck mechanism 16, and the other end of the support arm 17a is fixed at one end to the end of the support fitting 19 fixed to the lower chuck 16b. Connected to the air cylinder C5. As shown in FIG. 2 (b), the receiving plate 17 is pivoted about the pivotable mounting point P as shown in FIG. 2 (b), and the plane of the receiving plate 17 is positioned on the extended line of the plane of the lower chuck 16b. Then, the vehicle turns backward from that position and is positioned at the lower retracted position as shown in FIG.

2 is a horizontal line that connects the planes of the small edge cutting table and the top and bottom cutting table, and is the height of the conveying path that normally conveys the booklet. In FIG. 2, it is slightly higher than the height of the conveying path. The booklet is lifted and transported to the position by the upper and lower chucks 16a and 16b. This is because the booklet is not scratched by a cutting table or the like.

The lower end of the base of the lower chuck 16b of the chuck mechanism 16 is connected to an air cylinder C6 whose lower end is fixed to the base 20, and the lower chuck 16b positioned at the height of the transfer path is driven by the air cylinder C6. It is located slightly above the height of. That is, the air cylinder C6 is a cylinder having a function of moving the lower chuck 16b up and down slightly. Since the receiving plate 17 is attached to the base of the lower chuck 16b, even if the lower chuck 16b moves up and down, the plane rotated upward of the receiving plate 17 can always be located at an extension of the plane of the lower chuck 16b. .

The upper chuck 16a of the chuck mechanism 16 is connected to the air cylinder C7, and the lower end of the air cylinder C7 is fixed to the base 20 via the buffer member 21, and is brought into contact with the lower chuck 16b by driving the air cylinder C7. It separates from the contacted state above the lower chuck 16b. That is, the air cylinder C7 is a cylinder having a function of moving the upper chuck 16a up and down with respect to the lower chuck 16b. The buffer member 21 is formed of an elastic member, and functions so as to correspond to a slight upward movement of the lower chuck 16b by driving the air cylinder C6.

The base 20 is connected to the air cylinder C8, and the upper and lower chucks 16a and 16b move up and down by driving the air cylinder C8. By this downward movement, the lower chuck 16b can be positioned below the height of the conveyance path. That is, the air cylinder C8 mainly functions to position the lower chuck 16b below the height of the conveyance path. The distance between the lower position and the height position of the conveyance path is a distance where the upper chuck 16a is below the height position of the conveyance path when the upper and lower chucks 16a and 16b are in contact with each other, and cutting is performed in this state. It passes under the booklet H and moves back from the top and bottom cutting part B to the small edge cutting part A.

The air cylinder C8 is fixed to a slider 22, and the slider 22 is fitted on a slide guide shaft 23 installed across the small edge cutting part A to the top and bottom cutting part B. The chuck mechanism 16 fixed to the slider 22 reciprocates between the small edge cutting part A and the top and bottom cutting part B along the slide guide shaft 23 by movement of a chain (not shown).

When the chuck mechanism 16 stands by in front of the fore edge cutting portion A, the lower chuck 16b is positioned below the height of the conveyance path, and the upper chuck 16a is positioned above the lower chuck 16b. When gripping the booklet H of the small edge cutting section A, the chuck mechanism 16 is moved to the small edge cutting section A, and the lower chuck 16b is returned to the height position of the conveyance path and simultaneously the upper chuck 16a is moved downward to move the small edge cutting section. A booklet H is gripped by the upper and lower chucks 16a and 16b. Then, the booklet H grasped by driving the air cylinder C6 is lifted slightly above the height of the conveyance path as shown in FIG.

When the chuck mechanism 16 reaches the top and bottom cutting part B, the air cylinder C5 is first driven as shown in FIG. 2 (b), and the receiving plate 17 is moved to the plane of the lower chuck 16b as shown in FIG. 2 (c). Located in the extension line, the bending of the booklet H held between the upper chuck 16a and the lower chuck 16b in the conveying direction is suppressed. Further, the support bars 18a and 18b installed in the top and bottom cutting section B are moved from the standby position below the cutting tables 7b and 8b shown in FIG. 3 (a) to the planar height positions of the top cutting table 7b and the ground cutting table 8b (conveyance). The cylinders C1 to C4 are simultaneously driven to the upper position of the road), that is, diagonally upward, that is, the support bar 18a is between the top cutting table 7b and the upper and lower chucks, and the support bar 18b is between the ground cutting table 8b and the upper and lower chucks. Extrude to position.

Then, when the cylinder C6 of the chuck mechanism 16 is driven downward, as shown in FIG. 3B, the plane of the lower chuck 16b is returned to a position where the plane height of the top cutting table 7b and the ground cutting table 8b is set. As a result, the booklet H sandwiched between the upper chuck 16a and the lower chuck 16b is supported by the support rods 18a and 18b at the portion protruding from the upper chuck 16a and the lower chuck 16b, and suppresses bending in the direction perpendicular to the conveying direction. . That is, the support by the receiving plate 17 and the support rods 18a and 18b are positioned on the top cutting table 7b and the ground cutting table 8b in a flat state with no deflection of the booklet H, and the presser plates 7a and 8a are moved down to the booklet. Hold the H to cut the top and bottom.

In the case of a small-sized booklet that does not bend in the booklet H sandwiched between the upper chuck 16a and the lower chuck 16b, the receiving plate 17 and the support bars 18a and 18b may be placed at the standby position. Incidentally, reference numeral 24 in FIG. 3 bar supported on the tip (18a, 18b) fixed sliders, 25 slide rail 26 is a strip member connected to the cylinder (C1 -C4), a cylinder (C1 -C4) slider is moved along the slide rails by the drive, the rod supported by the movement (18a, 18b) is out of the space between the top cutting board 7b and the earth cutting table 8b.

After cutting the top and bottom, the upper chuck 16a is raised by driving the cylinder C7 of the chuck mechanism 16, and the lower chuck 16b is lowered almost simultaneously by driving the cylinder C8 to release the gripped booklet H, and the chuck mechanism 16 is conveyed in that state. The cylinder C7 for the base 20 is moved so that the upper chuck 16a is lowered and brought into contact with the lower chuck 16b by the lowering drive by the cylinder C7, and the upper chuck 16a is positioned below the conveying surface almost simultaneously. In this state, it is moved down below the top and bottom cutting section B and moved below the standby position in front of the small edge cutting section A, and the upper chuck 16a is moved up and waits by driving up the cylinder C7. .

In the above embodiment, the booklet is not rubbed with the upper and lower chucks, particularly the lower chuck, when the booklet is gripped with the upper and lower chucks, and the booklet can be prevented from being scratched by this rubbing.

In addition, when the chuck mechanism 16 moves to the standby position, the booklet H that has been cut upside down is discharged to the discharge unit 10 by another chuck mechanism. The timing of the movement of the chuck mechanism 16 and the vertical movement of the upper chuck 16a, the lower chuck 16b, and the base 20 is performed by a signal from a cutting control device (not shown).

DESCRIPTION OF SYMBOLS 1 Conveyance path 2 Carry-in belt conveyor 3 Positioning stopper 4 Pusher 5 Small edge cutting blade 7 Top cutting blade 7a Top plate 7b Top cutting table 8 Ground cutting blade 8a Ground holding plate 8b Ground cutting table 16 Chuck mechanism 16a Upper chuck 16b Lower chuck 17 Support plates 18a and 18b Support rods C1 to C4 Support rod drive air cylinder C5 Support plate drive air cylinder

Claims (2)

A small edge cutting section with a small edge cutting blade and a cutting table arranged in a direction perpendicular to the booklet transport direction, and a top cutting blade, a top cutting table, a ground cutting edge and a ground cutting table on both sides parallel to the booklet conveyance direction. A three-way cutting machine comprising: an arranged top and bottom cutting unit; and a booklet cut by the small cutting unit and transported to the top and bottom cutting unit, and a chuck mechanism for positioning the top and bottom cutting table of the top and bottom cutting unit and the ground cutting table. The chuck mechanism is provided with a pivotable receiving plate that is supported from below in the conveyance direction of the booklet held between the upper and lower chucks of the chuck mechanism, and each of the machine frames of the top and bottom cutting section is provided with a ceiling plate of the top and bottom cutting section. parallel to each of the cutting block and the earth cutting board, a freely stay bar out between said upper and lower chuck top cutting board with and between the land cutting table of the upper and lower chucks provided, said chuck mechanism if necessary A three-way cutting machine provided with a booklet support mechanism, wherein the booklet held between the upper and lower chucks is supported flat by the receiving plate and the support bar when the booklet held by the lower chuck reaches the top and bottom cutting part. . The chuck mechanism includes a first cylinder that moves the lower chuck up and down between a booklet conveyance path and a predetermined upper portion thereof, a second cylinder that moves the upper chuck toward and away from the lower chuck, the lower chuck, and the upper chuck 2. The third cylinder according to claim 1, further comprising a third cylinder that moves the chuck up and down between a position where the upper chuck is positioned below the transport path and a position where the lower chuck is positioned on the transport path. A three-way cutting machine equipped with a booklet support mechanism.

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