JPH0688234B2 - Die cutter device for corrugated sheet processing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a corrugated board sheet processing machine that successively performs display printing, ruled line processing, punching processing such as side punching on a corrugated board sheet, and punches such as side punching. The present invention relates to a die cutter device in a processing unit.

[Conventional technology]

For example, to form a cardboard box for packing extruded shapes such as sashes, screen lattices, gates, carports, fences, or their assembled products, generally, a cardboard sheet feeding unit, a printing unit that performs display printing, a side A corrugated cardboard sheet processing machine in which cutter units for punching are sequentially arranged is used.

By the way, there are many kinds of products of which sizes are different in size and size, and in order to package these products, it is naturally necessary to manufacture a wide variety of boxes according to each product, It is very often that such a wide variety of boxes are required in small quantities, and it is most desirable to be stored as well. In order to deal with this, as a conventional technique, in the cutter unit that performs the side punching process, a cutter holder that holds and rotates a blade called a wooden mold is configured to be movable in the lateral direction as well. However, for example, in the specification of Japanese Patent Application No. 61-4357, Mic film
2-172032).

Moreover, the cutter unit in the corrugated board sheet processing machine of the above publication only performs side punching, but when taking out, for example, two dismantling sheets from one corrugated board sheet, or a punching hole for handling is provided in the middle part. There are cases where punching is performed, and these are generally called full-face punching. The rate of performing this full-face punching is lower than the rate of performing only side punching, but it is often performed Since it is necessary, in addition to the above-mentioned units, a cutter unit for performing blanking is separately added.

[Problems to be Solved by the Invention]

As described above, the conventional processing machine requires a large number of units, and as the number of units increases, the machine becomes larger, and of course the number of units is increased according to the shape of the corrugated board sheet to be cut. Then, not only is it time-consuming to open and close each unit of the machine, but there is a possibility that the feeding accuracy and the processing accuracy of the corrugated cardboard sheet may be deteriorated. In addition, since the cutter holder, which is equipped with a blade called a wooden mold, is built into the unit, the unit is opened and the existing wooden mold is removed every time the machining shape of the blanking process is changed. Although a wooden mold is attached, it is adjusted and installed according to the processing position of another unit of its array accuracy, so it takes time and labor other than that installation, and the machine is stopped during that time, so it is possible to produce various small quantities There was a problem that could not be dealt with promptly.

Further, there is a statement to the effect that "the intervals between a plurality of cutter blades provided in the holder can be adjusted" on the third to fifth lines from the top of the specification page 9 by the above-mentioned microfilm. There was no description, and there was a problem with the attachment means.

The present invention was developed as a solution to such problems, and it is possible to perform side punching and full-face punching simultaneously, or only side punching independently, without increasing the number of units. It is an object of the present invention to provide a die cutter device for a corrugated board sheet processing machine, which can quickly cope with a variety of small-quantity productions in which the replacement work of a wooden pattern can be performed quickly.

[Means for Solving the Problems]

The solution according to the present invention includes an anvil roll, a rotary roll installed in parallel with the anvil roll, and a pair of left and right movable cutter rolls provided with a blade body detachably provided on the outer periphery of the rotary roll together with the rotary roll. In addition, in the die cutter device of the corrugated board sheet processing machine which is slidably fitted along the axis of the rotating roll, the moving cutter roll is provided with a large number of screw holes for attaching blades with screws, Rolling cutters Auxiliary cutters that are combined in a roll shape with a plurality of arc pieces in the space between the rolls, attach each arc piece to a rotating roll, and provide a large number of screw holes on the outer peripheral surface for attaching a blade The roll is engaged with a guide 7 provided on the outer peripheral surface of the rotary roll in the axial direction thereof and is removably interposed by a screw. .

[Action]

When performing side punching and front punching at the same time, fix the blade body to the moving cutter roll at a predetermined position (the position to be processed according to the dimensions of the corrugated board) with a screw while holding each arc piece of the auxiliary cutter roll. The blade is screwed to a predetermined position of the auxiliary cutter roll before being attached to the rotary roll, and this is also screwed to the rotary roll.

〔Example〕

The present invention will be described in detail. FIG. 7 shows an outline of a corrugated board sheet processing machine, in which A is a paper feeding unit, and B and C.
Is a printing unit, and D is a cutter unit that is the subject of the present invention. As shown in FIGS. 1 and 2, the cutter unit D has a rotary roll 1 axially supported on an upper portion of a frame (not shown), and is formed below the rotary roll 1 in parallel with the pair to form a pair. Anvil roll 2 is pivotally supported, and both rolls
1, 2 are connected to each other via gears 3, 4, and both rolls 1, 2 are rotated in opposite directions by a rotational driving force of a motor (not shown). Further, as shown in FIG. 2, a pair of upper and lower feed rollers 5 and 6 are provided on the side fed by the rolls 1 and 2. The feed rollers 5 and 6 may also have a ruled line function.

A plurality of guides 7 are provided on the outer circumference of the rotating roll 1 along the axial direction, and a pair of left and right moving cutter rolls 8 and 9 in the form of sleeves are provided on the outer circumference of the rotating roll 1.
The movable cutter rolls 8 and 9 rotate together with the rotation of the rotary roll 1, and slide laterally along the guide 7. Further, a large number of screw holes 10 are formed on the outer periphery of the movable cutter rolls 8 and 9 so as to form a grid, and a blade body 11 called a wooden pattern is formed on the outer peripheral surface of the movable cutter rolls 8 and 9. Is screwed into a screw hole 10 facing a screw (not shown) passed through the screw. Further, an annular concave groove 12 is formed at the end portion on the outer circumference of the movable cutter rolls 8 and 9, and the yokes 14 and 15 which move along the axis of the rotary roll 1 by the drive device 13 are formed in the concave groove 12. Engaged. The engagement structure of the yokes 14 and 15 is provided with eccentric cam followers 16 fitted in the recessed grooves 12 at the center and both end portions of the yokes 14 and 15, respectively.
By these adjustments, the three points accurately come into contact with the rising surface of the concave groove 12, and the moving force is transmitted from each eccentric cam follower 16.

As shown in FIGS. 1 and 2, the driving device 13 includes a pair of ball screw screws 17, which are above the rotating roll 1 and have a length of about 1/3 of the length of the roll 1. 18 is laid from both ends of the rotary roll 1 in parallel with its axis, and between both ball screw screws 17, 18, an intermediate shaft portion 19 which is an extension of one ball screw screw 17 and a pair of spur gears 20, twenty one
Both ball screw screws 17 and 18 are rotatably connected to each other via one side, and a gear motor 22 with a brake is connected to one ball screw screw 17 via a timing belt 23 so as to rotate. Nuts 24 and 25 fixed to the tops of the yokes 14 and 15 are screwed onto the ball screw screws 17 and 18, respectively. Since both ball screw screws 17 and 18 are engraved with screws in the same direction and are connected by a pair of spur gears 20 and 21, the left and right yokes 14, 14 are rotated by one direction. At the same time, 15 move toward each other or away from each other. Further, in order to prevent the yokes 14 and 15 from tipping over or twisting when moving, guide rails 28 and 28 provided on the lower surfaces of the horizontal members 26 and 27 are provided with guide blocks protruding from the yokes 14 and 15.
29, 29 are engaged. Further, a clutch 30 is interposed on the intermediate shaft 19 so that both ballscrew screws 17 and 18 can be operated and one ball screw screw 17 can be operated.
Only one of them may be driven to rotate. In addition, the limit switch 31,
It is controlled by 32, and each moving cutter roll 8 by encoder 33,
It is designed to control 9 set positions.

Each moving cutter roll on the outer circumference of the rotating roll 1
As shown in FIG. 3 and FIG. 4, a plurality of auxiliary cutter rolls 34, 34 can be detachably attached between 8 and 9, and the auxiliary cutter roll 34 is a roll formed by assembling a plurality of arc pieces 34a. Each arc piece 34a has a large number of screw holes 35 formed therein, and each arc piece 34a engages with a guide 7 provided on the outer periphery of the rotary roll 1 and has a screw hole 35a. Install it by tightening it on the rotating roll 1 with the bolt passed through. Further, the blade body 11 is attached to the outer circumference of the auxiliary cutter roll 34 with screws by utilizing the screw holes 35. Incidentally, it is desirable that the auxiliary cutter roll 34 is made of wood or an aluminum alloy so as to be light in handling, and in this case, a bolt for mounting the blade 11 is passed through the lightweight auxiliary cutter roll 34 and rotated. It is fixed by screwing it into a roll.

Further, in FIG. 1, reference numerals 36 and 37 denote a light emitter and a light receiver of a photo sensor, which detect whether or not the blade body 11 faces the anvil roll 2, and are movable cutter rolls 8 and 9 equipped with the blade body. The anvil roll 2 when moving horizontally
If it is facing the anvil roll 2, it will be damaged by the blade, so after confirming that the blade is not facing the anvil roll 2, it is used to move the moving cutter rolls 8 and 9 laterally. It is a thing.

The example shown in FIG. 5 and FIG. 6 shows a pair of ball screw screws 17,1 of the driving device 13 for moving the movable cutter rolls 8,9.
8 is connected to the same axis line, the screws are engraved in the opposite direction, and the installation position is located closer to the rear than directly above the rotary roll 1, and the yokes 14 and 15 are interposed so as to incline. is there. According to this example, since a wide space that is not blocked is provided above the rotating roll 1, it is easy to replace the arc pieces 34a of the auxiliary cutter rolls 34, 34. When replacing the circular arc piece 34, a pair of hoists 38, 38 may be screwed in and handled as shown in FIG.

Fig. 8 shows the blade 11 attached to the movable cutter rolls 8 and 9,
The moving amount display device 39 for setting to match the processing position of the corrugated cardboard sheet 50 to be processed is shown, and the moving amount display device 39 is used in the printing unit B, C.
It indicates the mounting position of 3.

The moving amount display device 39 is provided with a fixed scale plate 40 fixed to the frame of the unit in parallel with the rotary roll 1, and the fixed scale plate 40 has a center point in the longitudinal direction of the rotary roll 1 of "0". There is a unit scale on the left and right. Further, moving scale plates 41, 41 having a length substantially equal to the length of the moving cutter rolls 8, 9 are provided on the yokes 14, 15 in a protruding manner, and the tips thereof are "0".
A unit scale is attached to the rear.

When machining there, as shown in FIG. 9, the pattern to be machined is specified with the overall length L, the length L / 2 from the center S1 to one end, and the distance X from the center S1 to the center S2 of the sampling process. Moreover, if printing is to be performed on the part indicated by the dotted chain line in the drawing of FIG. 9, as shown in FIG.
Then, the cursor 42 formed of, for example, a magnet is set in accordance with the center S3 of the blade body 11 attached to the movable cutter roll 8. Then, move the moving cutter roll 8 and move the cursor
When 42 coincides with the scale position corresponding to the distance X of the fixed scale plate 40, that is, the blade 11 is set at a predetermined position. Then, as shown in FIG. 10, the printing units B and C have the discriminators 43, 43.
When installing, look into the cutter unit D and read the scale dimensions of the fixed scale plate 40 indicated by the cursor 42,
Mount the discs 43, 43 according to the distance X of the indicated dimension.

After preparing the preparation as described above, the corrugated paperboard sheets 50 are fed one by one and processed, for example, as shown in FIG.
When the disassembled sheets shown in FIGS. 12 or 13 and 14 are manufactured and assembled into the boxes 60 and 61, the hatched portion 51 of the corrugated cardboard sheet 50 is removed, and the disassembled sheets shown in FIG. 15 or 16 are shown. As described above, a blade body having a required shape, that is, a wooden mold (not shown) is attached to the left and right moving cutter rolls 8 and 9 to perform side punching.

The patterns shown in FIGS. 17 and 18 are used to fabricate a box 62 for packing, for example, a carport roofing material.
This is the one in which the three slits 52 are inserted in the middle part, and the whole surface punching process is required. The patterns shown in FIGS. 19 and 20 are caps 63, 63 for covering the upper and lower ends of the assembled surface lattice, for example. The chain line portion 51 is cut out and two sheets are taken from one sheet 50. As shown in FIGS. 21 and 22, one or two auxiliary cutters are provided in the central portion of the rotary roll 1 as shown in FIGS. 21 and 22. Processing is performed with the roll 34 interposed.

〔The invention's effect〕

According to the die cutter device for corrugated cardboard sheet according to the present invention, a plurality of screw holes for screwing the blade body are provided in the movable cutter rolls fitted on the left and right of the rotary roll, and the auxiliary cutter roll is rotated between the two movable cutter rolls. Since it engages with the guide provided on the and is screwed, it is possible to perform side punching and full face punching at the same time by each blade body, and it is possible to perform machining with accurate dimensions. Therefore, it is not necessary to separately provide a cutter unit for performing the blanking process on the entire surface.

Further, the auxiliary cutter roll is formed by a plurality of arc pieces, and each arc piece engages with a guide provided on the rotating roll to fix with a screw. The arc piece can be securely attached along the axis of the rotating roll, and the blade body must be attached before mounting each arc piece on the rotating roll according to the product whose machining size has been changed. Therefore, it is possible to immediately operate and process the arc piece simply by attaching it to the rotating roll, and it is possible to greatly shorten the replacement time.

[Brief description of drawings]

1 is a perspective view showing a die cutter device of a corrugated board sheet processing machine according to the present invention, FIG. 2 is a vertical side view of the same, FIG. 3 is a perspective view showing a state in which an auxiliary cutter roll is attached, and FIG. Similarly, FIG. 5 is a front view showing another example according to the present invention, FIG. 6 is a side view of the same, and FIG. 7 shows an outline of a corrugated board sheet processing machine incorporating the die cutter device unit according to the present invention. FIG. 8 is a side view, FIG. 8 is a front view showing a die cutter device provided with a blade moving amount display device, FIG. 9 is a front view showing an example of a corrugated board processing pattern, and FIG. Fig. 11 is a front view showing the situation, Fig. 11 is a front view showing an example of a pattern for performing side punching, Fig. 12 is a perspective view showing a box formed by the pattern shown in Fig. 11, and Fig. 13 is also side punching. Of the pattern Front view showing another example, Fig. 14 shows
FIG. 13 is a perspective view showing a box formed by the pattern shown in FIG. 13, FIGS. 15 and 16 are front views showing an example of adjustment movement of a movable cutter roll when processing the pattern shown in FIG. 11 and FIG. FIG. 17, FIG. 17 is a front view showing an example of a pattern to be subjected to full-face punching, FIG. 18 is a perspective view showing a box formed by the pattern shown in FIG. 17, and FIG. Front view showing another example, FIG.
A perspective view showing a box formed by the pattern shown in the figure,
FIG. 21 and FIG. 22 are front views showing examples of use of the auxiliary cutter roll when processing the patterns shown in FIGS. 17 and 19. 1 …… Rotating roll, 2 …… Anvil roll, 7 …… Guide, 8,9 …… Movement cutter roll, 10,35 …… Screw hole, 11
…… Blade, 13 …… Drive, 14,15 …… Yoke, 34 ……
Auxiliary cutter roll, 34a ... Arc piece, 50 ... Corrugated sheet, 60, 61, 62 ... Box, 63 ... Cap

Claims (2)

[Claims] 1. An anvil roll (2), a rotary roll (1) installed in parallel with the anvil roll (2), and a blade body (11) can be attached to and removed from the outer periphery of the rotary roll (1). A pair of left and right moving cutter rolls (8, 9) provided is rotated together with the rotating roll (1), and the corrugated sheet processing machine is slidably fitted along the axis of the rotating roll (1). In the die cutter device, the moving cutter rolls (8, 9) are provided with a large number of screw holes (10) for attaching the blade body (11), and the moving cutter rolls (8, 9) of the rotating roll (1) are provided.
A plurality of arc pieces (34a) are combined in a roll shape in the space of, and each arc piece (34a) is attached to the rotary roll (1), and the blade body (11) is attached to the outer peripheral surface with screws. Auxiliary cutter roll (3 with screw holes (35)
A die cutter for a corrugated board sheet processing machine, characterized in that 4) is engaged with a guide (7) provided on the outer peripheral surface of the rotating roll (1) along its axial direction and is removably interposed by screwing. apparatus. 2. Rotating two auxiliary cutter rolls (34, 34) assembled in a roll shape with a plurality of arc pieces (34a), and the blade body (11) being removably provided on the outer peripheral surface thereof. The die cutter device for a corrugated board sheet processing machine according to claim 1, wherein the roll (1) is provided with screw guides engaged with a guide (7) provided on the outer peripheral surface of the roll (1) in the axial direction thereof.