DE2320287C3 - Device for creasing, slitting and cutting rectangular boards made of corrugated cardboard or similar materials into folding boxes - Google Patents

Description

3 4

Since lower fork plates 186, 18c / and I8e for the

those corresponding to the setting of the individual working elements on the lower axes 11, 13 and 15

Serving motors are switched off, already arranged tools can be provided,

The upper fork plates 16a, 16b, 16c / and 16e are during this work cycle by the control element

elements that can be moved independently by hand, the 5 slidably received on rod 20, which is perpendicular

Extend the new conveying direction in the machine required for the following workflow.

Position of the working elements are set so that while the lower fork plates 18a, 186,18c / and 18e

after the end of the work cycle after switching on, also sliding on corresponding rods 21

of the motors moving the working elements which are included in the lower area of the

Work items are quickly and automatically arranged aaf the new io device Position can be aligned, whereby a four upper threaded lead screws 22 are provided. Loss of time between successive work cycles that are perpendicular to the conveying direction in the machine

running is practically avoided. are arranged and in the four upper fork plates

The accompanying drawings show an example arranged through holes. Any of the above

wise embodiment of the invention, and it means 15 fork plates is fixed by means of a nut 23 on the

F i g. 1 is a side view of the loading end of the upper lead screws 22 added. Four corresponding

the device; corresponding lower lead screws 25, which are also perpendicular

F i g. 2 Section along line 11-11 of FIG. 1; to the conveying direction, reach through appropriate F i g. 3 Top view of the device according to FIG. 1; openings in the lower fork plates 18. each of the F i g. 4 representation of a control element in enlarged 20 lower fork plates 18 is by means of a nut 26 on

ßert scale; one of the lower lead screw 25 is attached. Each of the

F i g. 5 View according to arrow A of FIG. 4. Lower lead screw 25 is associated with it The drawings show a combined creasing and upper lead screw 22 through a suitable transmission Slitting device having three zones, viz. Linkage G connected. Each of the lead screws 22 is in

a creasing zone, a driving zone and a slitting zone. 25 one or the other direction of rotation by one

The creasing zone has upper and lower parallel. Motor M drivable, whereby the on this lead screw

Fastened upper fork plate 16 lying perpendicular to the conveying direction of the panels and the directly

Axes 10 and 11 on. The upper axes carry-i five in the lower fork plate 18 located below it laterally

Tools arranged at a distance that can be moved from four grooving heads - right or left,
fen 10a, 106, 10c, 10c / and a cutting head 10e 30 Above the upper fork plates 16 are four

exist; they work together with corresponding endless chains that are perpendicular to the conveying direction

Heads lla, 116, lic, lic / and he, which are arranged on the lower 30, each of which has a control element 31 Axis 11 are arranged. The entrainment zone has, which will be described in detail later,

an upper and a lower, mutually parallel perpendicular | ede of the endless chains 30 can be carried out by hand

Axes 12 and 13 lying to the conveying direction. The 35 calibrated and lockable handwheel 32 is operated

upper axle 12 carries five axially spaced so that the positions of the four controls

arranged rollers 12a, 126, 12c, 12c / and 12e, which can be set independently with 31,

corresponding rollers 13a, 136,13c, 13c / and 13 on the The four controls 31 are the four pairs of

lower axis 13 work together. The slot zone is assigned to fork plates. As from Fig. 4 and 5

also has an upper and a lower one another 40 can be seen, each control consists of one

parallel, perpendicular to the conveying direction shaft block carrying two actuators 33, 34. the

14 and 15. The upper shaft 14 carries five axial actuating elements 33, 34 which work with switching elements 35

Spaced tools, one and 36 together, on the associated upper

combined slotting and cutting head 14a, are attached to the fork plate 16. The switching element 35 sets

Production of a folding flap, three slotted heads 146, 14c 45 and the associated fork plate via the lead screw 22

and 14c / and a cutting head 14e; all heads 16 actuating motor M still while the switching element

work with corresponding heads 15a, 156, 15c, 15c / 36 switches on the motor and its direction of rotation and

and 15e on the lower axis 15 together. thus the direction of rotation of the associated lead screw 22

The tools of the three zones form a working element.

ment, and the pairs of heads of each zone are with the 50. During the operation of the device are the

Head pairs of the other zones in the direction of the lead screws 22 driving motors M switched off, Passage of the panels through the device and the control elements 31 can through the handwheels

The device has five such, on the 32 are brought into those positions that the

assigned axes spaced-apart work elements assigned fork plates for a subsequent work

ments. The tools 10c, lic, 12c, 13c, 14c, 15c of the 55 operation must take. When the control

middle work element are fixed on their axes 31 is transferred to the new setting, that is

arranged, while the tools of the remaining switching element 36 of the associated fork plate are closed.

Work elements are displaceable on their axes. sen to ensure that the engine is following its A first upper fork plate 16a extends over engagement actuated in the correct direction of rotation

the tools 10a, 12a and 14a. and takes this at 60 to put the associated fork plate in its through the

to move their lateral displacement via the connecting link control element 31 to a predetermined position,

the 17 with, as Fig.2 shows. A former lower Before adjusting the device, the

Fork plate 18a extends below the tools associated with one another, on axes 4 and 15

11a, 13a and 15a and takes these aligned with one another at their laterally arranged slotted heads

Displacement via connecting links 19 with. Same will be 65 so that they are at the end of the adjustment process Fork plates 166,16c / and 16e are located exactly in the predetermined position for the assigned. the Tools placed on axes 10, 12 and 14 setting the work items is done automatically

are arranged, provided, and likewise are similar and quick by switching on the motors that make the

Move the fork plates and the working elements assigned to them into the new required position, each fork plate is stopped exactly in the required position, namely when the switching element 35 comes into engagement with the associated actuating member 33.

If the required adjustment of a control element between successive work processes 31 is so small that the switch 36 is not actuated, the associated fork plate can initially be in move in the wrong direction, the associated switch 36 is actuated, and the direction of rotation of the The motor and thus the direction of movement of the fork plate reverses and this exactly in the required position Brings position in which the switching element 35 with the ι j associated actuating element 33 enters into engagement.

The switching elements do not need to be arranged on the Arbeilsele, they can also be on the dei Controls are located; in this case, the actuators are attached to the working elements.

The switching elements do not need to be microswitches, other types of switches can also be used For example, photoelectric cells are used who.

The adjustable control elements 31 do not need to be set by hand using handwheels, see sii can also be controlled by motors, what makes the entire process of setting the machine automatically, for example controlled by a computer.

For this purpose 2 sheets of drawings

Claims (7)

Patent claims: 1. Device for creasing, slitting and cutting rectangular sheets of corrugated cardboard or similar materials into folding boxes, which for carrying out at least one processing step a plurality of laterally, perpendicular to the conveying direction of the sheets, serving to produce containers of different dimensions from sheets of different sizes having, with these working elements laterally movable control elements which can be adjusted to the required position of the working elements, and motors serving the mutual displacement of the working elements are provided, and with the working elements and control elements switching off the shifting of the working elements, each consisting of one Schaltglicd and one attached to the control element Actuator existing switching devices are assigned, characterized in that the switching member (35) is attached to the working element, and that the second, if not given ener cover position of the working elements with the respectively assigned control element (31) the motor (M) running in one or the other direction of rotation, the reaching of the cover position, consisting of a second switching element (36) and a second actuating element (34) are provided are, the second switching element (36) also being attached to the working element and the second actuating element (34) being attached to the control element (31). 2. Device according to claim 1, characterized in that that each control element (31) on an endless chain which can be actuated by a handwheel (32) (30) is included. 3. Apparatus according to claim 1 or 2, characterized in that each Arbeitsclement on one recorded by the associated motor actuatable threaded lead screw (22) in both directions of rotation is. 4. Device according to one of claims 1 to 3, characterized in that the switching elements (35, 36) of the two switching devices consist of microswitches. 5. Device according to one of claims t to 4, characterized in that at least some of the working elements arranged on the upper and lower lead screws (22) inevitably with one another are arranged by upper and lower fork plates (16 and 18, respectively). 6. Apparatus according to claim 5, characterized in that that the control element (31) of each upper sliding fork plate (16a, 16i>, 164 16eJ is assigned, wherein the switching elements (35, 36) of the switching devices mounted on the fork plate are. 7. Apparatus according to claim 6, characterized in that the upper fork plates (16a, \ Sb, 16t /, 16ejmit their associated lower fork plates (18a, \% b, 18t /. \% E) connected by coupling elements (G) and can be moved and adjusted independently of one another. The invention relates to a device for creasing. Slitting and cutting of rectangular panels from corrugated cardboard or similar materials into folding boxes. There is such a device known (US-PS 37 6G897), the implementation of at least one Processing step a plurality of laterally, perpendicular to the conveying direction of the panels, the production of containers of different ίο Dimensions from panels of different sizes having serving work elements, these work elements laterally movable, on each required position of the work elements assigned adjustable controls and the mutual Displacement of the working elements serving engines are provided, and wherein the working elements and Control elements switch off the shifting of the working elements, each consisting of a switching element and one attached to the control actuator are assigned to existing switching device. Here are the working elements are housed in nuts, which consist of a threaded sleeve and an outer, the working elements receiving ring part exist. The mother is assigned loosely following guide arms, which are supported by a Piston-cylinder assembly can be opened and closed and in the closed position Remove the frictional engagement of the nut parts with the thread of the threaded spindle. The lead screw is in to a certain extent longitudinally displaceable to operate a switch. The lower threaded spindle is in theirs Height adjustable via a drive element and a coupling in order to connect the working elements with the to bring the treating panel into and out of engagement, the latter being necessary when the on the Spindles added work elements must be transferred to a new position. The control this known embodiment is very cumbersome and is characterized in that the control elements are arranged separately from the components to be controlled, which inevitably results in inaccuracies in the Adjustment must result, since the working elements are arranged away from the control members, the with other limbs must be brought into engagement in order to bring the working elements into the respective new ones To adjust position. This indirect control, which takes place via a logic circuit, brings of course Inaccuracies with itself. In contrast, the invention is based on the object of the known device to this effect improve that the precise and rapid adjustment of the working elements in a simpler way and with the least possible Effort is achieved. This object is achieved according to the invention in that the switching element is attached to the working element, and SS that second, when the cover position of the working elements with the respectively assigned control element sets the motor running in one or the other direction of rotation, the attainment of the cover position, and consists of a second switching element and a second actuating element, switching devices are provided, the second switching element are also attached to the working element and the second actuator to the control.
Further refinements of the invention emerge from the subclaims. Of course, in an equivalent embodiment, the switching elements 35, 36 ′ can also be located on the control element 31 instead of being provided on the working element.