JPH0221933B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION FIG. 1 shows a schematic configuration of a conventional slotted scorer 1. As shown in FIG. In Fig. 1, both the upper and lower axes 2 and 3 have the following:
A plurality of upper ruled line heads 4a, 4b...4, respectively.
n and lower ruled line heads 5a, 5b, .

The conveyors 6, 7 are screwed to drive shafts 8, 9, and the drive shafts 8, 9 are connected to rotation of a motor 11 via bevel gears 30, 31 fixed to the ends of the shafts and a drive device 10. is now being communicated. The drive shafts 8 and 9 are rotatably supported at both ends by machine frames 17 and 18.

In the slit scorer 1 as described above, the rotation of the motor 11 causes the pulse generator 12, for example, as disclosed in Japanese Unexamined Patent Publication No. 50-157984, which was previously filed by the applicant of the present invention, to control the upper and lower ruled line heads 4a,
After confirming the positions of 4b...4n and 5a, 5b...5n, move the pair of upper and lower ruled line heads 4a sequentially from one side of the vertical shafts 2 and 3 in the direction of the arrow using the conveyors 6 and 7.
and 5a, 4b and 5b, . . . 4n and 5n are simultaneously set. Conventionally, Japanese Utility Model Publication No. 14-14171 has proposed an automatic rotation adjustment device for a scoring blade that is provided with a scoring blade that engages with a scoring groove ring having two grooves. There is no conveyor for shifting the groove wheel and the scoring blade to the left and right, and the tread structure that allows the scoring blade to move on the horizontal rod by manually loosening a screw is extremely complicated.

Further, a head positioning control device has been proposed in Japanese Patent Application Laid-open No. 50-157984, but this only shows a mechanism for controlling the movement of the head using a shifter, and only one of the ruled line heads having a chevron or a recess is moved to the other. Apart from this, there is no indication that the phase shift of the plurality of recesses can be moved axially.

FIG. 2 shows a schematic structure of the carrier 6 or 7, and since the structures for the upper shaft 2 and the lower shaft 3 are the same, only the carrier 6 for the upper shaft 2 will be described. Now, the link 13 is screwed to the drive shaft 8,
Both ends of the link 13 are rotatably pin-coupled to the arms 14, 14. Both arms 14, 14
One end of the two is connected by a cylinder 15, and a backing plate 16, 16 is attached to the other end.

The upper ruled line head 4 group is moved to its installation position by the movement of the carrier 6 as the drive shaft 8 rotates through engagement with the shifters 16, 16. Also, these ruled line head groups 4 and 5 are in the 3rd group.
As shown in the figure, one upper and lower ruled line head 4 and 5 each having one type of shape are combined to form one sheet.
It allows you to add different types of borders.

However, in such a conventional slitting device slit scorer 1) (Fig. 1), (a) the shape of the ruled line is one type, so the shape of the ruled line cannot be changed immediately when the shape of the ruled line needs to be changed depending on the composition of the sheet and the purpose of the corrugated box. I had the inconvenience of not being able to do that.

(b) Moreover, in the current situation, in order to change the ruled lines, it is necessary to install an additional scorer station dedicated to forming special ruled lines as necessary.

(c) Also, when two types of ruled lines with slightly different shapes were required, a compromise between the two was used.

(d) When a head for special ruled lines is additionally set on the same axis as the current one, an extra width equal to the width of the special ruled line head is required, so the machine width becomes large and the ruled line axis is also long and thick. This resulted in a drawback of high costs.

The present invention was proposed to solve the above-mentioned conventional drawbacks, and uses a conveyor that moves in the axial direction by the rotation of a rotatably supported vertical drive shaft.
In a slit scorer that is parallel to the drive shaft and is capable of moving a ruled line head that is slidably fitted in the axial direction to each of the rotatably supported upper and lower shafts, one of the upper and lower shafts is provided. is fitted with a ruled line head having one chevron,
The other shaft is fitted with a ruled line head having a plurality of recesses, and a drive mechanism is provided that can rotate the upper and lower drive shafts in forward and reverse directions separately, so there is no need to replace the head, and the machine width remains the same as before. The purpose of this project is to provide a slitting scorer that will save you time.

Embodiments of the present invention will be described below with reference to the drawings. FIG. 4 is a front view showing a schematic configuration of the first embodiment of the present invention. In FIG. 4, both the upper shaft 2 and the lower shaft 3 are rotatably supported by machine frames 17 and 18, and each of the upper and lower shafts 2 and 3 has a plurality of upper and lower ruled line heads 19a, 19b, . . . 19n. and 20a, 20b...20n are fitted. These 20 groups of lower ruled line heads are the fifth
As shown in the figure, it has a plurality of recesses B and C (two recesses in the illustrated example).

Further, the connecting shaft 21 of the drive device 10 shown in FIG. 4 is provided with a clutch 22 at the position shown to be able to connect and disconnect the rotation of the upper drive shaft 8, but the other structure is the same as that of the conventional one. be.

Next, the operation will be described. The method of moving the groups of upper and lower ruled line heads 19 and 20 in FIG. 4 on the upper shaft 2 and lower shaft 3 by the conveyors 6 and 7 is the same as the conventional method.

Now, to explain the case where the upper and lower ruled line heads 19 and 20 have a shape as shown in FIG. There are two types,
Let the phase shift between the recesses B and C be l. Now, if you want to change the combination of ridges A and dents B to the combination of ridges A and dents C, as shown in FIG. 4, when you disengage clutch 22 and start motor 11, drive shaft 9 rotates and
The carrier 7 shown in the figure can be moved to the right.

Then, after the time required for the phase shift to shift by 1 has elapsed, the clutch 22 is engaged, and the upper and lower ruled line heads 19,
If the movement of the 20th group to the set position is stopped in the same manner as before, the upper ruled line head 19 will be placed at a position shifted by a distance l from the lower ruled line head 20, and the crest A and the recess will be separated. New combinations of C can be obtained. Also, the upper and lower ruled line heads 19, 2
If it is desired to return the 0 group to its original position (combination of A and B), this can be done by disengaging the clutch 22 and reversing the motor 11 by the l dimension.

While the conventional upper and lower ruled line heads are a combination of a single shape, in the case of the first embodiment of the present invention, a plurality of combinations can be obtained by changing the shape without increasing the number of heads. In addition, by providing a clutch on the connecting shaft of the drive device so that the upper and lower drive shafts can be driven simultaneously or only the lower drive shaft alone, different combinations of the upper and lower ruled line heads can be easily obtained. It is designed to eliminate the inconvenience of

Next, a schematic configuration of a second embodiment of the present invention will be explained with reference to FIG. In FIG. 7, the upper shaft 2 is rotatably supported by frames 17 and 18, and is also slidable in the axial direction. Further, one end of the upper shaft 2 is directly connected to a piston rod 24 of a cylinder 23 fixed to the frame 18. The lower shaft 3 and other configurations of the second embodiment are all the same as the first embodiment.
This is the same as the case detailed in the embodiment (FIG. 4).

Next, to explain the operation of the second embodiment shown in FIG. 7, the combination of the chevron A of the upper ruled line head 19 and the recess B of the lower ruled line head 20 illustrated in FIG. If you want to change it, after setting the upper and lower ruled line heads in the first embodiment, press cylinder 23.
, the piston rod 24 is connected to the lower ruled line head 20.
When actuated in the direction of protrusion by an amount corresponding to the phase shift (Fig. 5l), the chevron A and the recess C face each other, and a new combination is obtained. Other general functions of the device are the same as in the first embodiment.

Now, in the second embodiment, by operating the cylinder 23 directly connected to the upper shaft 2, the upper and lower ruled line heads 19 positioned at a predetermined position are shifted to the right or left side together with the shaft. , 20 groups of ridges and depressions can be combined at the same time and can be reassembled in an extremely short time, thereby eliminating the inconvenience of the conventional method and greatly reducing the time required for rearrangement.

Next, FIG. 8 shows only the main parts according to the third embodiment, in which the shifter 16 fixed to the tips of the arms 14, 14 of the conventional carriers 6, 7 shown in FIG. It is a detailed view of 16 parts. In FIG. 8, 25 is a spacer whose thickness t is the same as the phase shift l of the lower ruled line head 20 (FIG. 5), and which can be easily attached and detached from one side of the conventional backing plates 16, 16. It is fixed to . The other parts constituting the third embodiment have exactly the same structure as that shown in FIG. 4 used to explain the first embodiment, with the clutch 22 removed.

Now, in the third embodiment shown in FIG. 8, if you want to change the combination of peaks A and depressions B shown in FIG.
Attach spacers 25, 25 to . Then, when the upper and lower ruled line heads 19 and 20 are moved to the set position and stopped in the same manner as before, the upper ruled line head 19 is moved by the spacer 2 with respect to the lower ruled line head 20.
By shifting the position by a distance corresponding to the thickness t of 5, a new combination of peaks A and depressions C can be obtained.

As described above, in the third embodiment shown in FIG. 8, by simply providing a plurality of recesses in the lower ruled line head and attaching and detaching spacers to the backing plate of the conventional conveyor, two types of combinations of the upper and lower ruled line heads as illustrated can be made. can be easily obtained, and the above-mentioned conventional inconveniences can be eliminated.

Next, FIG. 9 shows a schematic configuration of a fourth embodiment of the present invention. The upper shaft 2, lower shaft 3, and upper and lower ruled line heads 19 and 20 shown in the figure are the same as those in the first to third embodiments described above. Further, the conveyors 6 and 7 are similar to the conventional ones, but a motor 2 is attached to one end of the drive shafts 8 and 9 which are screwed to the conveyors 6 and 7.
6, 27, and a pulse transmitter 28, at the other end.
29 is installed. In addition, upper axis 2, lower axis 3
Since the method of supporting the drive shafts 8 and 9 is the same as the conventional method, the explanation thereof will be omitted.

Now, in FIG. 9, the upper drive shaft 8 is driven by a motor 26, and the lower drive shaft 9 is driven by a motor 27, respectively. As a result, the conveyors 6 and 7 can be moved individually, and the positions of the upper and lower ruled line heads 19 and 20 can also be freely set using separate pulse transmitters 28 and 29. Therefore, by freely shifting the phases of the upper and lower ruled line heads 19 and 20, the purpose can be achieved.

As described above, in the fourth embodiment shown in FIG. 9, the driving of the drive shafts 8 and 9 and the position setting of the upper and lower ruled line heads are separated and independent from each other, and the driving and control are performed electrically. ~3rd
The objectives of the invention are achieved without the mechanical drive 10 (FIGS. 4 and 7) as seen in the embodiments.

As explained in detail above, the present invention has a conveyor that moves in the axial direction due to the rotation of the rotatably supported vertical drive shaft, which is parallel to the drive shaft and supports the rotatably supported vertical shaft. In a slit scorer that is capable of moving ruled line heads that are slidably fitted in the axial direction,
A ruled line head having one chevron shape is fitted to one of the vertical shafts, and a ruled line head having a plurality of recesses is fitted to the other shaft, and the vertical drive shafts are separately connected to each other. It is provided with a drive mechanism capable of forward and reverse rotation, and is capable of moving either one of the chevron-shaped or recessed ruled line heads in the axial direction separately from the other by the phase shift of the plurality of recesses. By changing the combination of the upper and lower ruled line heads without increasing the number of heads, there is an effect that it is possible to respond to changes in sheet texture while keeping the machine width the same as before.

[Brief explanation of drawings]

Fig. 1 is a front view of a conventional slitting scorer, Fig. 2 is an enlarged side sectional view of the main part of Fig. 1, Fig. 3 is an explanatory diagram showing the shape of the upper and lower ruled line heads in Fig. 1, and Fig. 4
The figure is a front view showing the first embodiment of the slitting scorer of the present invention, FIG. 5 is a detailed view of the lower ruled line head, FIG. 6 is a detailed view of the main part in FIG. FIG. 8 is a front view showing only essential parts of the third embodiment of the present invention, and FIG. 9 is a front view showing the fourth embodiment of the present invention. Explanation of the main parts of the diagram, 2... Upper axis, 3... Lower axis, 17, 18... Machine frame, 19, 19
a, 19b...19n...upper ruled line head, 20,
20a, 20b...20n...Lower ruled line head, A
...Mountain, B, C...dent.

Claims (1)

[Claims] 1 A conveyor that moves in the axial direction by the rotation of the rotatably supported vertical drive shaft is parallel to the drive shaft and is slidably fitted in the axial direction to each of the rotatably supported vertical shafts. In the slit scorer which can move the ruled line head equipped with the vertical axis, one of the vertical shafts is fitted with a ruled line head having one chevron, and the other axis has a plurality of recesses. 1. A slit scorer, characterized in that a ruled line head is fitted therein, and a drive mechanism capable of independently rotating the upper and lower drive shafts in forward and reverse directions is provided.