JP3373454B2 - Slotter - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slotter for grooving a sheet such as a corrugated cardboard sheet, and in particular, automatically removes debris remaining between a pair of receiving blades. The present invention relates to a slotter having a scrap removing function that can be removed. 2. Description of the Related Art A rectangular cardboard sheet formed with two vertical ruled lines parallel to the side edges is transferred in one direction with one side edge first, and is orthogonal to the vertical ruled lines during the transfer. Conventionally, a plurality of horizontal ruled lines are formed, and both ends on each horizontal ruled line are grooved to form a blank with a material for forming a cardboard box. [0003] Slotting of a corrugated cardboard sheet is performed by a slotter. This slotter is, for example,
As described in JP-A-65527, a turret is attached to each of a pair of rotating shafts provided up and down, a groove cutting blade is attached to an outer periphery of an upper turret, and a pair of turrets are attached to an outer periphery of a lower turret. Attach the receiving blade at an interval at which a part of the grooving blade can be fitted, rotate the upper turret and the lower turret in opposite directions, and move between the turret and the receiving turret. A groove is formed in the corrugated cardboard sheet fed into the container. In the above-mentioned slotter, chips are formed by grooving the corrugated cardboard sheet, and the chips are pushed between the pair of receiving blades by the groove cutting blade. If the grooving is continued in a state where the debris remains between the receiving blades, the grooving of the corrugated cardboard sheet will be hindered. Therefore, every time the grooving is performed, the debris is removed from between the receiving blades. In removing the dust, in the slotter described in the above publication, a bent portion of a dust removing guide made of a spring steel plate is arranged between a pair of receiving blades, and one end of the dust removing guide is attached to a lower tool rest. Is fixed to a shifter that adjusts the position, and the other end is set as a free end so that the debris sent between the pair of receiving blades and sent in the circumferential direction is guided by a debris removal guide and discharged from between the receiving blades. . [0006] Incidentally, in a chip removing device using a chip removing guide, the chip removing guide is liable to wear due to contact with the chip, and the chip removing guide must be replaced frequently. There is a problem that it does not. In addition, an annular groove must be formed between the pair of receiving blades for mounting the dust removal guide, and a pair of receiving blades and a crease rule are formed on the outer periphery of the lower tool rest. The above-mentioned scrap removal guide cannot be adopted in a slotter which is provided in the direction so that the crease can be formed simultaneously with the groove cutting. SUMMARY OF THE INVENTION An object of the present invention is to make it possible to maintain the elimination of waste for a long period of time and also to make it possible to remove waste from a slotter of a type in which scoring is performed simultaneously. In order to solve the above-mentioned problems, according to the present invention, a pair of tool rests are provided vertically and a groove cutting blade is attached to the outer periphery of an upper tool rest, and a lower tool rest is provided. A pair of receiving blades are mounted on the outer periphery of the stand at intervals at which a part of the groove cutting blade is fitted, and the pair of turrets are rotated in opposite directions to each other and fed between the turrets. In a slotter for grooving a sheet with the grooving blade and the receiving blade,
A plurality of dust extruding members are provided in the circumferential direction between the pair of receiving blades and supported so as to be movable in the radial direction of the lower tool rest. provided cam means for moving in a direction, the cam means, the lower
The lower turret on the shifter that adjusts the turret in the axial direction
Is provided on the inner surface of the plate
A groove cam is formed, and the lower rotating body is provided on the waste pushing member.
A guide shaft that is movable in the outer diameter direction of the
Of both ends are inserted into the groove cam.
You. [0010] By adopting the above configuration, the debris remaining between the pair of receiving blades is pushed out from between the receiving blades by the movement of the debris pushing member in the outer diameter direction. There is no inconvenience of abrasion due to contact, and the removal of debris can be maintained for a long time. In addition, since the waste pushing member is moved in the outer diameter direction of the tool rest and the waste is pushed out, a pair of receiving blades and a rule are provided on the outer periphery of the tool rest in the circumferential direction to simultaneously cut the groove. The present invention can also be applied to a slotter that performs creases. Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2,
A pair of rotary shafts 3 and 4 are provided vertically on a transfer path of the sheet S that is sent in one direction by the rotation of the pair of feed rollers 1 and 2, and a circular tool rest 5 and 6 is provided on each of the rotary shafts 3 and 4. It is mounted non-rotatably and movably in the axial direction. As shown in FIG. 4, the upper tool rest 5 has a cylindrical tool support surface 7 on the outer periphery, and a flange 8 is provided at one end of the tool support surface 7. An arc-shaped groove cutting blade 9 and a pair of arc-shaped holder plates 1 are provided on a blade support surface 7.
0a and 10b are provided. The groove cutting blade 9 and the pair of holder plates 10a and 10b are fixed to the flange 8 by tightening bolts B. Here, as shown in FIG. 1, two sets of the groove cutting blade 9 and a pair of holder plates 10a, 10b arranged on both sides thereof are provided at intervals in the circumferential direction of the upper tool rest 5, as shown in FIG. I have. As shown in FIG. 4, the lower tool rest 6 has a cylindrical tool support surface 11 on the outer periphery, and a flange 12 is provided at one end of the tool support surface 11. Blade support surface 11
The annular receiving blades 13a, 13b and the annular pressing plate 14 are fitted on the upper side, and are fixed to the flange 12 by tightening bolts 15. The bolt 15 is provided between the receiving blades 13a and 13b.
By providing the spacer 16 to be fitted into the groove, there is provided an interval at which a part of the groove cutting blade 9 can be fitted. As shown in FIG. 1, each of the upper rotary shaft 3 and the lower rotary shaft 4 is rotated in opposite directions as indicated by arrows in FIG. During the rotation, the groove cutting blade 9
As shown in (1), the sheet S which enters between the pair of receiving blades 13a and 13b and is fed between the upper and lower tool rests 5 and 6 is subjected to grooving. As shown in FIG. 3 and FIG. 4, the swarf a is formed by the groove cutting.
It is conveyed in the circumferential direction of the lower tool rest 6 while being fitted between 3a and 13b. As shown in FIGS. 3 and 5, in the circumferential direction between the pair of receiving blades 13a and 13b, a plurality of waste pushing members 17 are provided.
Is incorporated. The outer periphery of the waste pushing member 17 is an arc surface 1
7a, and a pin support 17b is provided at the end on the inner diameter side. The pin support 17b includes a pair of receiving blades 13a,
13b, it is disposed in an opening 18 formed by the flange 12 and the holding plate 14 and is movable in the radial direction of the lower tool rest 6, and two pins 19 are provided on the inner surface of the pin support 17b. ing. Each of the pins 19 is supported movably in the axial direction by a bearing 20. Each of the bearings 20 is inserted into a radial bearing hole 21 formed in the blade support surface 11 and is prevented from coming off. For this reason, each of the waste pushing members 17 can be moved in the radial direction of the lower tool rest 6, and each of the waste pushing members 17 has an outer diameter formed by a cam mechanism 30 at the lower portion of the outer periphery of the lower tool rest 6. Moved in the direction. As shown in FIGS. 2, 3 and 5, the cam mechanism 30 includes a shifter 31 for adjusting the position of the lower tool rest 6 in the axial direction along the lower rotary shaft 4. A pair of plate portions 32 are provided on both sides of the plate member 32, and a groove cam 33 is formed on the inner surface of each plate portion 32. On the other hand, guide shafts 17c are provided on both side surfaces of the pin support 17b of the dust pushing member 17. A rotatable cam follower 35 attached to each guide shaft 17c is inserted into the groove cam 33. As shown in FIG. 1, the groove cam 33 is provided with a chevron track 33b at a part of a circular track 33a centered on the lower rotary shaft 4, and the cam follower 35 is mounted on the circular track 33a. When moving along, the dust pushing member 17 is held in a state of being retracted inward in the radial direction, and when moving along the chevron track 33b, the dust pushing member 17 moves in the outer radial direction between the receiving blades 13a and 13b. It has become. As described above, the pair of receiving blades 13a, 13b
A plurality of waste pushing members 17 are incorporated in the circumferential direction between
3a and 13b are movably supported in the radial direction, and each dust pushing member 17 is moved outward by the cam mechanism 30 at the lower part of the outer periphery of the lower tool post 6, so as to be between the pair of receiving blades 13a and 13b. Debris a that fits and is transported in the circumferential direction of the lower tool rest 6 is received by the debris pushing member 17 that moves in the radial direction between the receiving blades 13a and 13b.
It is pushed out from between and discharged downward. FIG. 6 shows a state in which the waste a is pushed out by the waste pushing member 17. As described above, the waste a is pushed by the waste pushing member 17 which is moved in the outer diameter direction between the receiving blades 13a and 13b.
Is pushed out, the arc surface 17 of the waste pushing member 17 is extruded.
a does not wear due to contact with the waste a, and the removal of the waste a can be maintained for a long time. FIGS. 7 to 9 show other examples of the slotter according to the present invention. In this example, an arc-shaped groove cutting blade 9 and an arc-shaped female ruler 40 are attached to the outer circumference of the upper tool post 5, and a pair of receiving blades 13 a and 13 b and a male ruler 41 are mounted on the outer circumference of the lower tool post 6.
The sheet S is grooved by the groove cutting blade 9 and the receiving blades 13a and 13b, and the sheet S is scored by the female rule 40 and the male rule 41. Further, a plurality of dust pushing members 17 are incorporated between the pair of receiving blades 13a and 13b, and the dust pushing members 17 are moved outward by the cam mechanism 30 at the lower part of the outer periphery of the lower tool post 6, and the movement is performed. The pair of receiving blades 13a, 1
Debris a remaining between 3b is pushed out. The scrap pushing member 17 and the cam mechanism 3
Since the configuration of 0 is the same as that used in the slotter shown in FIGS. 1 to 6, the same components are denoted by the same reference numerals and description thereof is omitted. Also in the slotter of the above-described embodiment, the arc surface 17a of the waste pushing member 17 does not wear due to contact with the waste a, so that the removal of the waste a can be maintained for a long time. As described above, in the present invention, the waste remaining between the pair of receiving blades is pushed outward by the outward movement of the waste pushing member. It can be maintained for a long period of time, and the removal of scraps from the slotter that is scored at the same time as the grooving can be reliably performed.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional front view of a slotter according to the present invention. FIG. 2 is a side view of FIG. 1. FIG. 3 is a part of an upper tool post and a lower tool post of the slotter shown in FIG. FIG. 4 is a sectional view taken along the line IV-IV of FIG. 3 FIG. 5 is a sectional view taken along the line VV of FIG. 3 FIG. 6 is a view taken along the line VI-VI of FIG. FIG. 7 is a partially cutaway front view showing another example of the slotter according to the present invention. FIG. 8 is a longitudinal side view of the slotter shown in FIG. 7. FIG. 9 is scored on a sheet by the slotter shown in FIG. 5, 6 Turret 9 Groove cutting blades 13a, 13b Receiving blade 17 Debris pushing member 17c Guide shaft 30 Cam mechanism 31 Shifter 32 Plate body 33 Groove cam

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-53-11387 (JP, A) JP-A-59-81099 (JP, A) JP-A-59-227396 (JP, A) 76427 (JP, U) Hira 5-65527 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B31B 1/00-5/04 B26D 1/00-1/24 B26D 7/00-11/00

Claims (1)

(57) [Claims 1] A pair of turrets are provided up and down, a groove cutting blade is attached to the outer periphery of an upper turret, and a pair of receiving blades are provided on the outer periphery of a lower turret. Attached at an interval where a part of the cutting blade is fitted, by rotating the pair of turrets in opposite directions,
In a slotter for grooving a sheet fed between the turrets by the grooving blades and the receiving blades, a plurality of debris pushing members are provided in a circumferential direction between the pair of receiving blades, and a radial direction of the lower turret is provided. And a cam means for movably supporting each of the debris pushing members in the outer diameter direction of the tool post at a lower portion of the outer periphery of the lower tool post , and the cam means moves the lower tool post in the axial direction.
Position the shifter facing the side of its lower turret.
And a grooved cam on the inner surface of the plate
The waste pushing member has an outer radial direction of the lower rotating body.
A movable guide shaft is provided and both ends of the guide shaft are
A slot inserted into the groove cam.
Lotta.