JPS5850998Y2 - Debris removal device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for removing debris from slotter grooves in corrugated cardboard sheets, etc., which can be used in flexo folder gluers, flexible printer slotters, oil-based printer slotters, and the like.

To explain the conventional corrugated paperboard sheet slotter groove waste removal device with reference to FIGS. , grooves are cut by the upper knife 4 and the lower knives 3, 3.

The grooved sheet 1 is conveyed to the next step, and the scraps 5 from the grooved portion move while being held between the lower knives 3, 3, and are removed by a stripper 6.

The stripper 6 has a structure that is slightly thinner than the gap between the lower knives 3 and 3 so that it fits between the lower knives 3 and 3. It is adjusted with a shim 7, and is attached to the center between the lower knives 3 and 3 with a bolt 10. The tip 6a of the stripper 6 is pressed against the spacing tube 8 by a spring 9 to prevent the debris 5 from being wrapped between the spacing tube 8 and the stripper 6, and the debris 5 is removed from between the lower knives 3, 3.

However, in the apparatus shown in FIGS. 1 and 2, it was necessary to adjust the shim 7 and finely adjust the spring force of the spring 9.

In particular, if the spring force is too strong, the service life of the stripper 6 will be shortened, and if it is too weak, the tip 6a of the stripper 6 will come off from between the lower knives 3 and 3 due to the impact of the scraps 5, as shown in FIG. Not only would it become impossible to perform the grooving operation by wrapping it around the spacing tube 8 and accumulating it, but there was also a risk that the upper knife 4 and the lower knife 3 would be damaged.

Further, adjusting the shim 7 and the spring 9 itself was a very time-consuming and troublesome work.

The present invention was proposed in order to solve the above-mentioned conventional drawbacks, and has a stripper in the form of a band whose both ends are attached to a frame and whose position can be changed at one end, and a pair of receiving knives at the middle part. By arranging the stripper to be located in a part of the outer space formed by the spacing cylinder, it is possible to finely adjust the installation time (shim adjustment), improve the life of the stripper, and further shorten the stripper replacement time. ,
It is an object of the present invention to provide a debris removal device that can easily perform reliable stripping.

Embodiments of the present invention will be described below with reference to the drawings. In FIGS. 4, 5, and 7, reference numeral 11.12 denotes a pair of upper and lower rotating shafts, and the upper shaft 11 is equipped with a groove cutting knife (upper knife). 1
3 is installed.

Further, a spaced cylinder 14 is attached to the lower shaft 12 at a position corresponding to the groove cutting knife 13, and a pair of receiving knives (lower knives) 15, 15 are attached to both sides of the equally spaced cylinder 14.

Reference numeral 16 denotes a sheet conveyed between the upper and lower shafts 11.12, and a groove cutting knife 13 and a receiving knife 15.
15 people work together to cut the grooves.

17 is a stripper that is fitted between the receiving knives 15 and 15, and one side of the stripper 17 is connected to the receiving knife 15.
Positioning is performed using a support bolt 18 that does not limit the spacing direction of 5, and on the other side, an eccentric bolt 19 with an eccentricity α is adjusted so that there is a gap between the inner surface of the stripper 17 and the outer periphery of the spacing cylinder 14. Fix the bolt 19 with the nut 20.

The support bolt 18 and the eccentric bolt 19 are structured so that the stripper 17 can freely move between the receiving knives 15 and 15.

Next, to explain the operation, the groove cutting knife 13 and the receiving knife 15
．． The sheet 16 sandwiched between the sheets 15 is crushed and grooved to separate the waste 21.

The grooved waste 21 is sandwiched between receiving knives 15 and 15,
It rotates with the receiving knife 150 rotations, contacts the stripper 17 from the tip of the scrap 21, is gradually stripped from between the receiving knives 15 and 15, leaves the receiving knife 15, and falls to a predetermined position.

As explained above, the present invention provides a belt-shaped stripper whose intermediate portion is located in a portion of the outer circumferential space formed by the pair of receiving knives and the spaced cylinder that includes the retaining portion of the groove cutting knife and the receiving knife. Since the stripper is arranged so that it does not come into contact with the spacing cylinder, mechanical wear can be prevented and the service life can be increased.

In addition, since the sides of the stripper itself are guided by the inner surfaces of the pair of receiving knives, there is no need to adjust the position during installation, so anyone can easily install it in the normal position. be.

As a result, according to the present invention, reliable stripping can be easily performed, and furthermore, it is greasy to maintain that state.

[Brief explanation of the drawing]

Fig. 1 is a side view of a conventional corrugated cardboard sheet slotter groove waste removal device, Fig. 2 is a front view of the same, Fig. 3 is a side view of the main parts in a different operating state from Fig. 1, and Fig. 4 is FIG. 5 is a side view of a waste removal device showing an embodiment of the present invention, and FIG. 5 is a front view of the same. 6 is a sectional view taken along the line AA in FIG. 1, and FIG. 7 is a sectional view taken along the line BB in FIG. 4. Explanation of main parts of the figure 11...Top axis, 12...
...Lower shaft, 13... Grooving knife, 14...
... Interval cylinder, 15 ... Receiving knife, 16.
... Sheet, 17 ... Stripper, 18
...Support bolt, 19...Eccentric bolt.

Claims (1)

[Scope of utility model registration request] A pair of upper and lower rotating shafts, a grooving knife attached to the upper shaft, a spacing cylinder attached to the lower shaft at a position corresponding to the grooving knife, and a pair of receiving knives attached to both sides of the equally spaced cylinder. In a slotter in which a grooving knife and a receiving knife jointly cut grooving on a sheet conveyed between the two shafts, both ends are attached to the frame and one end is repositionable. The stripper is disposed so that its intermediate portion is located in a part of the outer circumferential space formed by the pair of receiving knives and the spacing cylinder, including the retaining portion of the groove cutting knife and the receiving knife. Characteristic debris removal device.