JPS6334913Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a yoke for axially moving a rotating body in paper processing machines, paperboard cutting machines, etc.

Conventionally, this type of machine, such as a creaser slotter, has been constructed as shown in the schematic diagrams of FIGS. 1 and 2 and the partially detailed diagrams of FIGS. 3 and 5. In other words, 1 is an upper slotter knife, 2 is a lower slotter knife, 3 is an upper creasing roll, and 4 is a lower creasing roll. The upper shafts 5 and 7, and the lower shafts 6 and 8 are provided with a plurality of mounting bases 9, 10, 11, respectively. 12 is slidable in the axial direction by a sliding key (not shown),
The upper shafts 5, 7 and the lower shafts 6, 8 are fitted so as to be rotatable in the circumferential direction. An upper slotter knife 1 is fixed to the mounting base 9, a lower slotter knife 2 is fixed to the mounting base 10, an upper ruling roll 3 is fixed to the mounting base 11, and a lower scoring roll 4 is fixed to the mounting base 12 at the positions shown. Also, upper shafts 5 and 7, lower shafts 6 and 8
Both end shaft portions are rotatably supported by frames 21, 21', and are driven by a separately provided drive device (not shown).

Shafts 15, 16, 17, and 18 are fixed at both ends to frames 21 and 21', and carriers 19 and 20 having the shapes shown in the drawings are attached to shafts 15 and 17 and shafts 16 and 18, respectively, so as to be able to slide freely in the axial direction. Moreover, it is provided so that it can be fixed to the shafts 15 and 17 or 16 and 18 at arbitrary positions. Carriers 19 and 20 each have yoke 1
3, 13' and 14, 14' are fixed, and the yoke 1
The semicircular cutout portions 3, 13', 14, and 14' are the circumferential grooves 9 of each mounting base 9, 10, 11, and 12.
a, 10a, 11a, and 12a while maintaining gaps.

Since parts A and B in FIG. 1 have the same structure, the details of the structure of part A will be explained below with reference to FIGS. 3 to 5.
Two round holes 13a are drilled at the positions shown in the figure, and a pin 26 is inserted inside each of the round holes 13a.
is slidably fitted. Also yoke 13
As shown in FIG. 4, a screw hole 13b is formed at a position perpendicular to the centers of the two round holes 13a, and an adjustment screw 27 is screwed into this screw hole 13b. The dowel 26 is fixed in the round hole 13a so that there is no gap between the outer end surface of the dowel 26 and the inner surface of the circumferential groove 9a by pressing the tip of the dowel 26 against a slope provided on a part of the dowel 26. It is. Also, since the mounting base 9 rotates together with the upper shaft 7 during operation, the outer end surface of the stopper 26 is in the circumferential groove portion 9a.
When a gap is created in the contact surface due to sliding and wear on the inner surface of the holder, the adjustment screw 27 can be used to eliminate the gap.

However, in the conventional device configured in this way, it is necessary to periodically stop the operation and adjust the gap created by the abrasion between the outer end surface of the stopper 26 and the inner surface of the circumferential groove portion 9a. If this is not done, the phases of the upper and lower slotter knives 1 and 2 and the upper and lower ruling rolls 3 and 4 will not match, resulting in disadvantages such as problems in processing the corrugated sheet 28, as well as the pressing of the pad 26 against the inner surface of the circumferential groove 9a. depends on how tightly the adjustment screw 27 is tightened by the operator,
If the pressure is too strong, there are disadvantages such as premature wear and an increase in the frequency of adjustment. In addition, since two pieces are provided for each location of the stopper 26, there are many adjustment points, and if the stopper 26 is pressed too hard, it will wear out quickly, so it is often replaced with a new one, and the yoke 13 is replaced each time. It has to be removed from the mounting base 9, which makes maintenance troublesome and takes too much time.

The present invention has been proposed in order to eliminate such conventional drawbacks. For example, the yoke head is divided at the engagement portion between the yoke and both mounts of the interlocking device for the creaser slotter's crease slotter and slotter knife mounts. 2 in one hole made in the split part
The dowels are inserted together and a spring is sandwiched between the two dowels to extend the dowels, so that the dowels, which are consumable items, can be easily replaced without disassembling the yoke from the carrier. It is an object of the present invention to provide a yoke for the purpose of improving productivity and product quality by using a device that does not require time or skill to adjust for wear of the stopper.

Below, the yoke according to the present invention is shown in Figures 6 to 8.
A detailed explanation will be given based on the embodiment shown in the figures.
The yoke according to the present invention is shown in parts A and B in Figure 1.
This is related to an improvement in the structure of the part, and since the structures of the parts corresponding to part A and part B are all the same, the structure of the part corresponding to part A will be described in detail below.

The yoke 30 is a sixth end of the conventional yoke 13.
It has a shape cut out along the Y-Y line in the figure, and the round hole 30a also has a semicircular portion cut out at the cutout portion. Pads 31 and 32 are inserted into the round hole 30a with a spring 33 in between, and the presser foot 34 is fitted into the notch Y-Y of the yoke 30, and the presser foot 34 is inserted into the round hole 30a.
It has a semi-circular groove 34a with the same diameter as that of the yoke 30, and has a separate hole for the bolt 35 to pass through. 32 is a round hole 30
The pads 31 and 32 can be fixed to the yoke 30 by being pressed against the inner surface of the yoke 30.

Therefore, when the bolt 35 is loosened, the outer end surfaces of the butts 31 and 32 are pressed against both inner surfaces of the circumferential groove portion 9a by the repulsive force of the spring 33. In this state, if the bolts 35 are tightened with the gaps g shown in FIG. 8 being made equal, the yoke 30 can be held at a position with no deviation from side to side within the circumferential groove portion 9a relative to the mounting base 9. Also, the cash 31, 32
If a gap is created in the contact surface due to the abrasion between the outer end surface of the groove 9a and the inner surface of the circumferential groove portion 9a, the bolt 35 may be loosened once and the above-described operation may be repeated. In addition, the metal 31, 3 has reached its usable limit due to wear.
If you want to replace 2, loosen bolt 35,
By removing the presser foot 34, the dowels 31, 32 and the spring 33 can be easily removed from the round hole 30a in the notch Y-Y direction, and when inserting and fixing new dowels 31, 32 into the round hole 30a. In this case, the replacement work is performed by performing the above-described operation in reverse order.

As described above in detail based on the embodiments shown in the drawings, according to the yoke according to the present invention,
Two dowels are inserted into one hole, and the repulsive force of the spring provided between the two dowels makes it possible to fix the dowel with the end surface of the dowel lightly touching the mounting base, thereby preventing wear of the dowel. becomes less. In addition, the trouble of making individual adjustments using adjustment bolts and the variations in the manual tightening of adjustment bolts as in the past are eliminated, making it easier for anyone to perform the work. The dowel can now be replaced without removing the yoke itself, and the number of dowel attachment points is now half that of the conventional one, significantly reducing maintenance time. Furthermore, the structure of the present invention simplifies the shape of the weld metal, such as eliminating the need for slopes, lowers the processing cost of the weld metal, and improves productivity and the quality of processed products using these devices. This has practical effects such as improved quality.

[Brief explanation of drawings]

1 and 2 are schematic configuration diagrams of a conventional creaser slotter, in which FIG. 1 is a sectional view taken along the - line in FIG.
The figure is a detailed view of section A or B in figure 1, and figure 4 is a detailed view of section 3 of figure 1.
Fig. 5 is a cross-sectional view taken along the - line in Fig. 3, and Fig. 6 is a first yoke showing the yoke according to the present invention.
A detailed view corresponding to part A in the figure, FIG. 7 is a view taken along the - line in FIG. 6, and FIG. 8 is a view taken along the - line in FIG. In the drawing, 9a is a circumferential groove, 30 is a yoke, 31,
32 is a stopper, 33 is a spring, 34 is a presser foot, 34a is a groove, and 35 is a bolt.

Claims (1)

[Scope of utility model registration request] A round hole that divides a part of the fitting part of the yoke that fits into each mounting base of the upper and lower ruled line rolls and upper and lower slotter knives of the creaser slotter and moves the mounting base in the axial direction, and passes through the divided part and the main body in the axial direction. A yoke characterized in that the yoke is provided with a yoke, and two pads are inserted into the round hole, and a spring is interposed between the two pads.