ES2335671T3 - DEVICE AND PROCEDURE FOR THE TREATMENT OF PAPER OR CARTON CUTS. - Google Patents

Abstract

The processing device (10) has at least one hook-shaped element (24) to fit in the shoulder region of fishplate. The hook-shaped element can turn, so that when the cutout is fed forward and engaged in the shoulder region, it and the fishplate are turned under the transporting plane. After transferring the cutout, the element is turned back to its initial position.

Description

Device and procedure for treatment of paper or cardboard cutouts.

The present invention relates to a device for treating paper or cardboard cutouts with  a transport mechanism for transporting clippings of paper or cardboard to be treated, consisting of paper or paper cutouts cardboard, respectively, in a main element, configured of flat shape, and at least one tongue that protrudes in the direction of transport, and the tongue is attached, respectively, through a folding line with the main element and presents, respectively, at least one shoulder-shaped area. The invention also refers to a procedure for the treatment of cuts of paper or cardboard with a transport mechanism for the transport of paper or cardboard cuttings to be treated, consisting of paper or cardboard cutouts, respectively, in a main element, configured flat, and in at least a tab that protrudes in the direction of (l) transport, and the tab is attached, respectively, through a line of folded with the main element and presents, respectively, the minus a shoulder-shaped area.

Such devices and procedures for Treatment of paper or cardboard cutouts are already known. Particularly in the manufacture of folding boxes, the requirements relative to such devices and procedures result each increasing, since the folding boxes to be manufactured have to meet increasing demands both from the point of view Technological as for the design. Thus, for example, it is described in document DE 692 03 234 T2 a folding box that is appropriate for the reception of granulated or pulverized materials and that is at the same time recerrable and proof of creep.

Also in document 20 2004 011 723 U1 remains described a folding box of cardboard, paper or similar materials, That must be recerrable. The closing mechanism is formed, in both cases, by a tongue protruding from a main element of the cardboard cutout, the tongue being composed of two elements, and one of these elements is fixed to an inner face of the box folding and by a first opening of the folding box it produces a separation of the two parts of the tongue along of a tear line. However, the devices and procedures for treating paper or cardboard cutouts they are not completely appropriate for the manufacture of mentioned folding reclosable boxes. In practice, of the manufacture of the indicated folding boxes result in high fees of defective parts, which are not acceptable in view of the large quantities of parts, which are usually needed.

In addition, reference should be made to the US document 4,544,368, which reveals a device and a procedure for repeated presentation of cardboard boxes, presenting the boxes of cardboard on both ends closing tabs, whose edges exteriors form in a folded state, respectively, a line common straight. A transport mechanism transports, respectively, the cardboard box positioned under a stack of cartons, bending up and down the tabs that are They are in the forward position in the transport direction. For the transport mechanism presents a component for the folded up from the upper front tabs, the which comprises three adjustable hook-shaped elements. In addition, arc-shaped elements are provided, which maintain in the folded state the tabs facing upwards through the hook-shaped elements. The transport mechanism presents also a component, arranged behind the component for the folded up, seen in the direction of transport, for the folded down from the lower front tabs, which It also includes three adjustable hook-shaped elements. These fit the tabs, so that, when the advance of the cardboard box, the hook-shaped elements and the tabs are oriented so that they are below of the transport plane of the cardboard box and that, after going through on top of the cardboard box, the element is oriented in such a way that it is again in the transport plane of the box paperboard. Behind this component, seen in the direction of transport, a passive folding element is provided in the form of arch to keep the tongues folded in this position.

Reference is also made to the US document 3,388,641, which reveals a device for lifting the bottom parts,  which, seen in the direction of movement, are in position previous, in the cutouts of folding boxes. This device it has an adjustable folding hook that protrudes to the trajectory of the movement of the cuts and that, when the front edge of the cutout, is moved upwards from this way the bottom part of the cutout. The device presents also a change of stationary bending and configured in the form of arch, which, seen in the direction of movement, is in position after folding and folding hook completely the bottom part.

Therefore, the objective of this invention is the provision of a device and a procedure for treating paper or cardboard cutouts that guarantee an easy and reliable treatment of paper clippings or of cardboard with at least one tongue that has a shaped area Shoulder

Another objective of the present invention is the provision of an additional device correspondingly advantageous for a device for the treatment of paper or cardboard cutouts.

These objectives are achieved through a device according to the features of the claim 1, a procedure according to the characteristics of the claim 5, as well as an additional device according to the characteristics of claim 9.

Some advantageous configurations are described in the respective dependent claims.

A device according to the invention for the Treatment of paper or cardboard cutouts presents a mechanism of transport for the transport of paper clippings or of cardboard to be treated, consisting of paper or cardboard cutouts, respectively, in a main element, configured so flat, and at least one tongue that protrudes in the direction of the transport, and the tongue is attached, respectively, through a folding line with the main element and presents, respectively, at least one shoulder-shaped area. According to invention, the device presents, in the direction of transport of paper or cardboard cutouts, at least one element in the form of hook destined to fit in respectively an area in the form of shoulder of the tongue, the hook-shaped element being configured in an orientable manner, so that, when performed an advance of the paper or cardboard cutout and the lace in the area in Shoulder shape, element and tongue are oriented or bent so that they are below the plane of transport of the paper or cardboard cutout and the element, after pass over the paper or cardboard cutout, it is oriented such that it is again in or on the transport plane of paper or cardboard cutout. Due to the element in the form of hook is guaranteed that the tongue is folded down, it is say in such a way that it comes to be below the plane of Paper or cardboard cutout transport. Since the item Hook-shaped is also adjustable down, a tongue damage is avoided and the element Main cutout of paper or cardboard is not lifted. By consequently, a continuous transport of the paper or cardboard cuts to be treated through the device The present invention. Between the treatment of paper clippings or individual cardboard, the hook-shaped element is oriented such that it is again in or on the plane of transporting the paper or cardboard cutout, in such a way that a continuous and reliable development of the treatment.

In addition, the device presents, in direction of transport of paper or cardboard cuttings and behind at least one hook-shaped element, an element of passive folding arranged below the cutout transport plane of paper or cardboard, to continue folding the tongue approximately 180º in total, in relation to the position of origin of the tongue, and to put it against the lower face of the cutout of paper or cardboard. The folding element is configured in a arc-shaped element as heel type element. Due to the folding element is guaranteed that the tongue can be folded better and that is tucked particularly against the face bottom of paper or cardboard cutout.

In another advantageous configuration of the invention, the device presents, in the direction of transport of the cuts of paper or cardboard and behind the passive folding element, when minus a sensor element to determine the position and location of the tongue Because of this, it is advantageously guaranteed that the tabs not fully retracted or also the tabs damaged or main elements of paper clippings or of Damaged cardboard can be discarded in a treatment step additional.

A method according to the invention for the treatment of paper or cardboard cutouts, which consist of, respectively, in a main element, configured so flat, and at least one tongue that protrudes in the direction of the transport, and the tongue is attached, respectively, through a fold line with the main element and present, respectively, at least one shoulder-shaped area, comprises the following steps: (a) transport the paper cutout or cardboard with a transport mechanism up to at least one element adjustable in the form of a hook; (b) fit the element in the form of hook in the shoulder-shaped area of the tongue; (C) continued transport of paper or cardboard cutout and orientation or, where appropriate, folding of the element and the tongue of such that it comes to be below the plane of transport of paper or cardboard cutout; and (d) full step of element by cutting paper or cardboard and reorienting of the hook-shaped element such that it is of new in or on the transport plane of the paper cutout or paperboard. The process according to the present invention guarantees a easy and reliable treatment of paper or cardboard cutouts with al Less a tongue. By the orientation of the element in the form of hook, the tongue is folded in the same direction. Behind the treatment of a tongue from a paper or cardboard cutout, it produces a reorientation of the hook-shaped element of such so that it is again in or on the plane of transport of paper or cardboard cutout, such that it is possible a continuous and reliable treatment of cuts additional.

After step (d) of the procedure, the tongue remains folded approximately 180º in total, with relation to the position of origin of the tongue, by means of a passive folding element configured in an element in the form of arch as a heel type element below the transport plane of the paper or cardboard cutout, and is tucked against a bottom face of paper or cardboard cutout. Because of this it is guaranteed exact positioning and that the tongue is inserted exactly against the underside of the paper or cardboard cutout.

In another advantageous configuration of procedure according to the present invention is performed, after folded from the tongue by the folding element, a control of the position and location of the tongue by means of at less a sensor element. Because of this it is possible to identify the tabs not retracted correctly or tabs damaged as well such as damaged paper or cardboard cutouts and dispose of them in a Additional step of the procedure.

In another advantageous configuration of the invention paper or cardboard cutout, folded and assembled, forms an insert of a folding box. The tongue consists of a projection and a base element, the base element being joined with the main element through the folding line and being configured between the base element and the projection a line of tear, and the projection is fixed to an inner face of the box folding and by a first opening of the folding box it produces a separation between the projection and the base body at along the tear line. Because of this, a Simple and economical manufacture of a folding reclosable box.

An additional device according to the invention is configured for a device for the treatment of clippings paper or cardboard, presenting the device a mechanism of transport for transporting paper or cardboard cutouts to be treated and consisting of paper or cardboard cutouts, respectively, in a main element, configured so flat, and at least one tongue that protrudes in the direction of the transport, and the tongue is attached, respectively, through a folding line with the main element and presents, respectively, at least one shoulder-shaped area. According to invention, the additional device is disposed within the device, in the direction of transport of paper clippings or cardboard, and has at least one hook-shaped element intended to fit in the shoulder-shaped area of the tongue, respectively, the hook-shaped element being configured in an orientable way, so that, when an advance is made of the paper or cardboard cutout and the lace in the area in the form of shoulder, the element and the tongue are oriented or, where appropriate, bent so that they are below the plane of transport of the paper or cardboard cutout and the element, after pass over the paper or cardboard cutout, it is oriented such that it is again in or on the transport plane of paper or cardboard cutout. Because of this kind of Additional device configuration is achieved without problems subsequently equip the devices for the treatment of existing paper or cardboard cutouts of the type indicated. Particularly, an additional device according to the present invention guarantees a simple and reliable treatment of cuts of paper or cardboard with at least one tongue. The shaped element hook can be attached, at the opposite end to an area of hook, to an orientation mechanism. The orientation mechanism it can have a turning element, being fixed in the element turning the end of the hook-shaped element by means of a fixing device and keeping the turning element low tension by means of a spring element fixed in it.

The additional device has, in the direction of transport of the paper or cardboard cutouts and behind the at least one hook-shaped element, a passive folding element arranged below the transport plane of the paper or cardboard cutout, for continue folding the tongue approximately 180º in total, in relation to the position of origin of the tongue, and to place it against the lower face of the paper or cardboard cutout. The folding element is configured in an arc-shaped element as a heel type element. Due to the disposition of the element
Folding is guaranteed that the tongue is tucked against the underside of the paper or cardboard cutout.

More details, features and advantages of the invention follows from an exemplified embodiment graphically in the figures. It shows:

in figure 1 a schematic representation of a side view of the device according to the invention for the treatment of paper or cardboard cutouts;

in figure 2 a schematic representation of a top view of the device according to the invention according with figure 1; Y

in figure 3 a schematic representation of the principle of operation of the device according to the invention and of the development of the process of the invention.

Figure 1 shows, in a representation schematic of a side view, a device 10 for the treatment of paper or cardboard clippings 14 (compare also Figures 2 and 3). The representation also corresponds to a additional device 50, which can be incorporated into devices already existing for the treatment of paper or cardboard cuts. Be you can see that the device 10 or, where appropriate, the device additional 50 features two hook-shaped elements 24 (also compare figure 2) to fit respectively into a shoulder-shaped area 22 of a tab 16 of the paper cutout or of cardboard 14. The hook-shaped elements 24 are configured in an orientable way, so that, when performed an advance of the paper or cardboard cutout 14 and the lace in the shoulder-shaped area 22, element 24 and tongue 16 are oriented or folded so that they are below the transport plane of paper or cardboard cutout 14 and the item 24, after passing over the paper or cardboard cutout 14, is oriented such that it is again in or on the transport plane of the paper or cardboard cutout 14. The hook-shaped element 24 is attached, at opposite end 30 to a hook area 28, to an orientation mechanism 32. The orientation mechanism 32 has a turning element 34, being fixed in the turning element 34 the end 30 of the element in hook shape 24 by means of a fixing device 36. The turning element 34 is kept under tension by an element spring 38 fixed therein, which is shown, in the example of embodiment shown in the figures, as tension spring cylindrical. The spring element 38 is fixed, on the one hand, by means of a fixing device 40 to a housing 52 of the additional device 50 and, on the other hand, to the turning element 34 by means of a fixing device 42. In the orientation radius of the hook-shaped element 24, a stop is also provided 54, which limits the orientation of the element in the form of hook 24 upwards, that is in the direction of the plane of transport of paper or cardboard cuttings 14. In position opposite the hook-shaped element 24 and behind the element in hook shape 24, seen in the direction of transport of the paper or cardboard cutouts 14, an element of passive folding 26 arranged below the transport plane of the paper or cardboard cut-out 14. Folding element 26 is configured as a heel type element and serves to continue retracting the tongue 16 approximately 180 ° in total in relation to the position of origin of the tongue, and to put it against a face bottom 28 of paper or cardboard cutout 14 (compare also Figure 3).

In addition, it can be seen that the device 10 or, where appropriate, the additional device 50, presents, in address for transporting paper or cardboard clippings 14 and behind the passive folding element 26, a sensor element 44 for determine the position and location of the tongue 16.

Figure 2 shows a representation schematic of a top view of the device 10 or, in its case, of the additional device 50 according to figure 1. It you can see that the paper or cardboard cutout 14 consists of a main element 18, configured flat, and in a tab 16 that protrudes in the direction of transport. The tongue 16 is connected through a fold line 20 with the element main 18 and comprises two shoulder-shaped areas 22. In addition, it can be seen that the hook-shaped elements 24 fit, respectively, in a shoulder-shaped area 22 of the tongue 16, when the advance of the paper or cardboard cut 14 is made in transport address

The tongue 16 consists of a projection 46 and a base element 48, the base element 48 being joined with the main element 18 through the folding line 20. Enter the base element 48 and the projection 46 is configured a line of tear, the projection 46 being fixed to an inner face of a folding box and producing, through a first opening of the folding box, a separation between the projection 46 and the body of base 48 along tear line 56 (not shown graphically).

Figure 3 shows a representation schematic of the principle of operation of the device 10 or, in  where appropriate, the additional device 50 and the development of the corresponding procedure You can see that in the first step (a) of the procedure, the trimming transport of paper or cardboard 14 by means of transport mechanism 12 up to the hook-shaped elements 24 orientable. The mechanism of transport 12 is composed of at least one drive device 62 and a conveyor chain 58, to which the drag devices 62.

In the next step (b) of the procedure, Performs the hook-shaped element 24 in the areas in the form of shoulder 22 of the tongue 16. The areas in the form of shoulder 22 are shaped by a corresponding conformation of the projection 46 and of the base element 48 of the tongue 16. By means of the continuous advance, that is to say by means of the continuous transport of the paper or cardboard cutout 14 and a downward orientation of the hook-shaped elements 24, that is an orientation that moves them away from the transport plane of the cutout 14, which is caused by the advance of shoulder-shaped areas 22, it performs, in accordance with step (c) of the procedure, a refolding of the tongue 16 along the fold line 20. Al be done, the tongue 16 is also folded so that It is below the transport plane of clipping 14. Finally, a complete step is carried out above element 24 by the cutout 14 and a reorientation of the element 24 of such so that it is again in or on the transport plane of clipping 14. Due to continuous forward transport of the trimming 14, hook-shaped elements 24 are no longer capable of holding the tongue 16, since the tongue 16 is retracted backwards at an angle of 120º.

Figure 3 also shows that in the step (d) of the procedure is folded of the tongue 16 forward, so that the tongue 16 touches a face bottom of the folding element 26. It can be seen that now the tongue 16 is bent at an angle of approximately 70 °, with relation to the main element 18 of the cut 14.

A step is shown in figure 3 additional e) of the procedure, in which, by means of the passive folding 26 arranged below the transport plane of the paper or cardboard cutout 14, the tongue 16 is folded approximately 180º in total in relation to the position of origin of the tongue and is inserted against a lower face of the cutout 14 or, as the case may be, of the main element 18. Next, performs a check of the position and location of the tongue 16 by middle of the sensor element 44.

You can also see that the hook area of element 24 is configured shorter than the base element 48 of the tongue 16. This prevents damage of clipping 14.

Claims (11)

1. A device for the treatment of paper or cardboard cuttings with a transport mechanism (12) for transporting paper or cardboard cuttings (14) to treat, consisting of paper or cardboard cutouts (14), respectively, in a main element (18), configured so flat, and at least one tongue (16) that protrudes in the direction of transport, and the tongue (16) is connected, respectively, through  of a folding line (20) with the main element (18) and It has, respectively, at least one shoulder-shaped area (22), presenting the device (10), in the direction of transport of paper or cardboard cutouts (14), at least one element in hook shape (24) intended to fit in a shaped area shoulder (22) of the tongue (16), respectively, the hook-shaped element (24) configured in an orientable manner, in such a way that, when an advance of the paper cut or of cardboard (14) and the lace in the shoulder-shaped area (22), the element (24) and the tongue (16) are oriented or folded in such so that they are below the transport plane of the paper or cardboard cutout (14) and the element (24), after passing above the paper or cardboard cutout (14), is oriented in such so that it is again in or on the transport plane of paper or cardboard cutout (14), in which the device (10) presents, in the direction of transport of paper or cardboard cutouts (14) and behind the at least one hook-shaped element (24), a folding element liabilities (26) arranged below the transport plane of the paper or cardboard cutout (14), to continue refolding the tongue (16) approximately 180º in total in relation to the original position of the tongue (16), and to place it against a underside (28) of the paper or cardboard cutout (14), being the folding element (26) configured as a heel type element in an arc-shaped element 2. Device according to claim 1, characterized because the hook-shaped element (24) is attached, at the end (30) opposite a hook area (28), a orientation mechanism (32). 3. Device according to claim 2, characterized because the orientation mechanism (32) has a turning element (34), being fixed in the turning element (34) the end (30) of the hook-shaped element (24) by means of a fixing device (36) and keeping the turning element (34) under tension by means of a spring element (38) fixed in he. 4. Device according to one of the claims 1 to 3, characterized because the device (10) presents, in the direction of transport of paper or cardboard cutouts (14) and behind the passive folding element (26), at least one sensor element (44) to determine the position and location of the tongue (16). 5. A procedure for the treatment of paper or cardboard cutouts (14), consisting of cuttings of paper or cardboard (14), respectively, in a main element (18), configured flat, and in at least one tongue (16) protruding in the direction of transport, and the tongue (16) is joined, respectively, through a folding line (20) with the main element (18) and presents, respectively, at least a shoulder-shaped area (22), the procedure comprising the Next steps:

(to)

paper cutout transport or cardboard (14) with a transport mechanism (12) up to at least one hook-shaped element (24);

(b)

element fitting (24) in the form of hook in the shoulder-shaped area (22) of the tongue (16);

(C)

continuous trimming transport of paper or cardboard (14) and orientation or, where appropriate, folding the element (24) and of the tongue (16) in such a way that it reaches be below the transport plane of the paper cutout or cardboard (14); Y

(d)

He passed complete above the element (24) by the paper cutout or of cardboard (14) and reorientation of the element (24) such that is again in or on the clipping transport plane of paper or cardboard (14),

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in which after step (d) of the procedure, the tongue (16) remains folded approximately 180º in total in relation to the position of origin of the tongue (16), by means of a passive folding element (26) configured in an element in arc shape as a heel type element below the plane of transport of paper or cardboard cutout (14), and it is inserted against a bottom face (28) of the paper or cardboard cutout (14).

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6. Method according to claim 5, characterized because after tongue folding (16) by means of the folding element (26), a control of the position and location of the tongue (16) by means of at least one sensor element (44). 7. Method according to claim 5 or 6, characterized because paper or cardboard cutout (14), in condition folded and assembled, it forms an insert of a folding box. 8. Method according to claim 7, characterized because the tongue (16) consists of a projection (46) and a base element (48), the base element (48) being attached with the main element (18) through the folding line (20) and being configured between the base element (48) and the projection (46) a tear line (56), the projection (46) being fixed to an inner face of the folding box and produced by a first opening of the folding box a separation between the projection (46) and the base body (48) along the line of tear (56). 9. Additional device for a device (10) for the treatment of paper or cardboard cutouts, presenting the device (10) a transport mechanism (12) for transporting paper or cardboard cuttings (14) to treat and consisting of paper or cardboard cutouts (14), respectively, in a main element (18), configured of flat shape, and at least one tongue (16) that stands out in direction of transport, and the tongue (16) is attached, respectively, through a folding line (20) with the main element (18) and presents, respectively, at least one shoulder-shaped area (22), and the additional device is arranged inside the device (10), in the direction of transport of the paper or cardboard cutouts (14), and has at least one hook-shaped element (24) intended to fit in the area in shoulder shape (22) of the tongue (16), respectively, being the hook-shaped element (24) configured so adjustable, so that, when an advance of the cut is made of paper or cardboard (14) and the lace in the shoulder-shaped area (22), the element (24) and the tongue (16) are oriented or bent such that they are below the transport plane of the paper or cardboard cutout (14) and the element (24), after pass over the paper or cardboard cutout (14), it is oriented such that it is again in or on the plane of paper or cardboard cutout transport (14), in which the additional device presents, in address for transporting paper or cardboard cutouts (14) and behind of the at least one hook-shaped element (24), an element of passive folding (26) arranged below the transport plane of paper or cardboard cutout (14), to continue refolding the tongue (16) approximately 180º in total in relation to the original position of the tongue (16), and to place it against a lower face (28) of the paper or cardboard cutout (14), the folding element (26) configured as a heel type element in a arc-shaped element 10. Additional device according to claim 9, characterized because the hook-shaped element (24) is attached, at the end (30) opposite a hook area (28), a orientation mechanism (32). 11. Additional device according to claim 10, characterized because the orientation mechanism (32) has a turning element (34), being fixed in the turning element (34) the end (30) of the hook-shaped element (24) by means of a fixing device (36) and keeping the turning element (34) under tension by means of a spring element (38) fixed in he.