EP2777924A1 - Device for gluing a carton and method for gluing a carton - Google Patents

Abstract

The device has adhesive applicator device (4) that is arranged at side of support (1) for applying adhesive to-be-bonded portion of cardboard. A blank holder (6) is arranged above the support and is movable perpendicular to plane of the support for lowering to a board surface according to cardboard size and maintaining to-be-bonded portion by holding cardboard between lowered blank holder and the support. A pressure element (8) is provided for pressing the portion to be bonded with to-be-bonded portion. An independent claim is included for cardboard bonding method.

Description

Technical area

The invention relates to a device for bonding a cardboard box with a support, an alignment unit, a hold-down and a pressure element. Furthermore, the invention relates to a method for bonding a carton, in which a carton is provided, adhesive is applied and a hold-down and a pressure element are pressed against the carton.

State of the art

Devices of the type mentioned in the packaging lines for closing cartons or packages are widely used and allow a high quality of bonding and sealing.

They are used, for example, as fully automatic sealing machines in mass production. However, fully automatic closing machines are generally fixed to the packaging of a carton of a certain type of carton and bonding of another carton of a different type of carton is not possible with such a fully automatic closing machine.

However, it is desirable for cartons that are to be sealed or glued in smaller quantities, to achieve an equally high quality of the closure.

Presentation of the invention

It is therefore an object of the present invention, with a simple construction, the packaging or bonding process for cartons cheaper and more flexible to make cartons of different Kartonagentypen, the high quality of the closure should be guaranteed.

This object is achieved by a device for bonding a cardboard with the features of claim 1. Accordingly, the apparatus for bonding a carton having a portion to be bonded and a mating portion to be bonded comprises a support for receiving the carton, an alignment unit having an alignment aid not movable along the support for assisting manual alignment of the portion of the carton to be bonded an edit page of the platen and with an operator access for providing a carton by an operator and for manually aligning the carton by means of the alignment aid, so that the alignment according to the carton dimension can be done manually without a machine movement for execution. The device further comprises a movable along the processing side of the pad adhesive application device for applying adhesive to the bonded portion of the carton on the processing side of the support, a hold-down, which is disposed over the support and is perpendicular to the plane of the support movable to Lower according to the cardboard dimension on a cardboard surface and hold the part to be glued by holding the cardboard box between the cardboard lowered hold-down and the support, and a pressure element for pressing the adhered to the opposite portion to be bonded to the section.

Furthermore, according to the invention there is provided a method of adhering a carton having a portion to be bonded and an opposing portion to be adhered, comprising the steps of manually providing a carton on a support, merely manually aligning the portion of the carton to be bonded according to the carton dimension with the aid of a the support non-movable alignment aid on a processing side of the support without mechanical movement execution, applying adhesive to the adhered portion of the carton by an adhesive applicator, lowering a hold-down corresponding to the carton on the cardboard surface and holding the portion to be bonded by holding the carton through the hold-down and the support and pressing of the mating section to be bonded to the section to be bonded by a pressure element and bonding the mating section to be bonded to the section to be bonded t includes.

The alignment aid is not movable along the support, i. it is not movable in the plane or the direction of the flat extension of the support. In other words, the alignment aid is parallel to the support or not horizontally movable. This means, in particular, that the alignment aid can however be movable perpendicular to the support or vertically to the support.

Under the processing page is the side of the device or the support to understand the cardboard is glued. In particular, the alignment auxiliary device and the adhesive application device as well as the hold-down device and the pressure element are provided on the side of the device the processing or bonding of the cardboard takes place. The side of a box, which rests on the processing side, is processed, ie closed and glued.

The operator access is an open access to the permanent work of an operator on the support and to distinguish accessibility in case of maintenance.

Under a carton is in particular a folded and partially closed or glued cardboard to understand. Thus, in the case of a cuboid carton, preferably one side is opened, which is connected to the carton via an edge, so that three side tabs are to be bonded to the carton. One side tab after the other can be glued according to the invention, wherein the package or the carton can already be filled and completely glued and closed.

The adhesive may be a glue, so that a single-grade packaging without adhesive tape can be made by a glue applicator.

The invention is based on the idea to provide a semi-automatic device for bonding a carton or a semi-automatic method for bonding a carton, wherein the provision and alignment is done manually, without a mechanical movement execution is performed. In particular, the device does not need to be set to cartons of different types of carton and / or the individual carton size to be aligned or to perform individual machine movement.

By providing a carton manually by an operator and manually aligning it with the help of an alignment aid not movable along the support, the provision of and delivery of the carton Orientation according to the carton dimension without a mechanical movement execution. The manual alignment takes place individually as a function of the cardboard dimension, with the subsequent automatically performed processing steps taking place essentially independently of the type of cardboard carton or of the carton dimension. The further processing steps, such as applying adhesive and pressing the counterpart section to the section to be bonded, are performed by machine to ensure a high quality of the closure.

Thus, high quality carton closure can be performed automatically, with manual deployment and alignment allowing for independence of carton dimensions. The device or the method is therefore suitable for various types of cartons and in particular for small series productions and 1 piece productions. This leads to low unit costs of a packaged goods, which is available in small quantities. The device according to the invention and the method according to the invention make it possible to package cartons of different types of cartonboard, such as FEFCO 0410, FEFCO 0413, FEFCO 0420, FEFCO 0421, FEFCO 0428, FEFCO 0429, FEFCO 0442, FEFCO 0403 etc.

Particularly advantageous developments of the invention are specified in the dependent claims.

Preferably, the device has a guide for guiding the pressure element to the portion to be bonded and is preferably designed such that the trajectory of the pressure element at Hinschnitts at least in sections at an angle to the portion to be bonded is not equal to 0 °. Due to the oblique feeding of the pressure element to the portion to be bonded, there is a suitable contact between the counter portion and the pressure element with respect to the edge regardless of the Cardboard height and thus to a suitable pre-lead the counterpart section to be bonded. Thus, a precise positioning of the portion and the counter portion to each other and a precise bonding of the sections can be achieved.

Further preferably, the hold-down device is designed as a strip which runs along the machining side and in particular is arranged on the machining side of the support. As a result, an optimal attitude of the carton can be done by the lowered hold-down. In particular, when the force is not distributed selectively, but over the bar, and preferably on the processing side of the pad, is exercised where pressure is exerted by the pressure element on the adhered counter portion and the portion to be bonded, the carton can be optimally held during pressing become.

Furthermore, a movable projection may be provided, which is movable from below the support, preferably opposite the hold-down, and further preferably consists of a flexible slip-resistant material, for pressing against the cardboard. If force is exerted by the projection against the hold-down, the carton can be better kept between the lowered hold-down and the support. Thus, a stationary holding the carton against high forces is possible. Preferably, the projection from the support is pressed from below, more preferably opposite the hold-down, even more preferably from a flexible slip-resistant material, after aligning the carton and / or before and / or during holding of the carton by the holddown against the carton.

Further preferably, the alignment aid is a bar, in particular a stop ruler. This allows a simple, inexpensive and appropriate design of a Elements by which the operator performs the alignment.

Furthermore, the alignment aid may be movable perpendicular to the support surface down into the support. The alignment aid may be lowered below the pad prior to applying pressure to the mating section. When, for example, the pressure element is used to press the opposite portion to be bonded to the portion to be bonded, the alignment aid can be lowered into the support, so as not to hinder or limit the movement of the pressure element.

Furthermore, the device may comprise a non-movable alignment auxiliary accessory, in particular a strip, on the support perpendicular to the alignment aid. This allows for a simplified alignment of the carton by first applying it to the auxiliary alignment device and then to the alignment aid perpendicular to the auxiliary alignment device.

Preferably, the hold-down and the pressure element are mechanically coupled by a coupling. As a result, the movement of the blank holder and the pressure element can be adjusted in a simple manner.

A dimensional sensor for detecting the dimension of the carton along the processing side may be provided on the device, preferably on the adhesive applicator. As a result, in particular it can be recognized how long the adhesive agent trace is to be applied to the cardboard, so that the method of the adhesive application device can be precisely determined.

Preferably, the pressure element is formed flat and perpendicular to the support on the machining side of the support. A flat design of the pressure element allows a uniform pressure distribution on the opposite section of the carton and thus an optimal design of the closure or the bond. Due to the vertical arrangement, an optimal bonding in the case of a cuboid box can be ensured.

Preferably, the apparatus comprises a carton sensor for detecting a presence of a carton on the overlay. In particular, the removal of a carton can be monitored and, based on this, the controller can be designed. An efficient workflow is guaranteed.

Preferably, the device is arranged by means of the carton sensor such that the alignment aid protrudes upwards and / or during the introduction of a carton into the device over the support and / or is lowered by the pressure element on the carton under the support. The carton sensor controls that the alignment aid projects upwardly over the overlay prior to and during insertion of a carton and / or is lowered below the overlay during holding of the carton between the holddown and the overlay. This allows accurate alignment of the carton during insertion and unimpeded movement of the pressure element to apply pressure. Consequently, the process of bonding can be made precise and efficient.

The apparatus may include a closure unit having the alignment aid, the hold-down and the pressure member. Preferably, the closing unit may further comprise a protrusion movable from below the support for pressing against the carton. Several sealing units may be arranged in a device with a support and an adhesive application device and are, preferably depending on the dimension of the carton along the processing side, can be used simultaneously or separately. Thus, depending on the carton width, a plurality of closing units can be arranged arranged one behind another for closing a carton. A common overlay and a common adhesive application device are provided for a plurality of closure units. This allows a very wide range of use of the device, which can be used for almost any carton dimensions. In particular, in the case of a small carton, only one closing unit will be used, with several closing units being used simultaneously in the case of a large carton.

Preferably, after glueing the section and the counterpart section, the hold-down device and the pressure element are brought back into the respective starting position. Thus, a next carton or a next section / contra portion of the carton can be directly processed subsequently, whereby the workflow can be made more efficient.

Preferably, the cardboard is removed manually after bonding the section and the counterpart section. Alternatively, after adhering the section and the mating section to the support, the carton is manually rotated and further corresponding sections of the carton are glued. This ensures an efficient and cost-effective bonding and processing of a carton.

Other features and advantages of the invention will become more apparent from the following detailed description.

Brief description of the drawings

Fig. 1

shows a carton before gluing;

Fig. 2

shows a device according to the present invention in a perspective view;

Fig. 3

shows a side view of the device according to the present invention; and

Fig. 4

shows the paneled device according to the present invention with a cardboard to be bonded.

Detailed description of a preferred embodiment

A preferred embodiment of the present invention will be described below in detail with reference to the accompanying drawings.

Fig. 1 shows a carton K, which has three sections a, b, b 'to be bonded, which are correspondingly provided with a glue trace c, c', c ", and the corresponding opposing sections A, B, B 'to be glued to the latter bonding sections a, b, b 'are folded.

Fig. 2 shows the inventive device for bonding a box K, which has a support 1, for example. A storage and alignment table, and a cardboard support surface 1 'represents.

An alignment unit has an alignment aid 3 on a machining side of the pad 1 for assisting manual alignment of the adherend portion a, b, b 'of the paperboard. The alignment auxiliary device 3 is not movable along or parallel to the support 1, but can be moved downwards into the support 1 perpendicular to the plane of the support.

Furthermore, the apparatus has an operator access for providing a box K by an operator (not shown) and for manually aligning the box K by means of the alignment aid 3. The provision and alignment are thus according to the Cardboard dimensions manually without a mechanical movement execution.

Furthermore, the device has a glue application device 4 movable along the processing side of the support 1 for applying glue to the section a, b, b 'of the carton K to be adhered to the processing side of the support 1. The glue application device 4 has a glue application head with integrated glue container and a glue preparation 5, which injects a glue trace c, c ', c "onto the corresponding section a, b, b' The glue run support device 4 can be moved along the axis 12, which is parallel to the processing side, so that the cardboard side is provided with glue, which rests on the processing side.

A hold-down 6 is disposed over the support 1 and movable perpendicular to the plane of the support 1, for lowering according to the cardboard dimension on a cardboard surface and holding the portion to be bonded a, b, b 'by holding the box K between the lowered hold-down 6 and the edition 1.

In addition, a pressure element 8 for pressing the adhering to the opposite section A, B, B 'to be bonded to the portion a, b, b' is provided. The hold-down 6 and the pressure element 8 are mechanically coupled by a coupling 11.

Fig. 3 shows a guide 9 for guiding the pressure element 8 to the bonded portion a, b, b 'with at least partial contacting of the counter portion A, B, B'. The guide is designed in such a way that the trajectory of the pressure element 8, when guided, lies at least in sections at an angle to the section a, b, b 'to be glued, which is not equal to 0 °. In particular, the angle is α between the support 1 and the guide 9 and the trajectory of the pressure element 8 not equal to 90 °.

As in Fig. 2 the hold-down device 6 is shown as a strip which runs along the machining side and is arranged on the machining side of the support 1. Opposite the hold-down 6, a movable projection 7 from the support 7 is provided, which presses against the cardboard from below and consists of a flexible anti-slip material. A plurality of projections 7 can be arranged in a row against the bar 6.

In particular Fig. 2 can be seen, is a non-movable alignment auxiliary auxiliary device 2, in particular a bar, provided on the support 1 perpendicular to the alignment aid 3. This runs perpendicular to the processing side of the support 1 at one edge of the support.

Further, a dimension sensor, preferably on the adhesive applicator (not shown), is provided for detecting the dimension of the carton K along the processing side.

Out Fig. 2 is particularly apparent that the pressure element 8 is formed flat and perpendicular to the support 1 on the processing side of the support 1. Furthermore, the pressure element 8 is mechanically coupled to the hold-down device 6 such that a time difference between the fitting of the hold-down 6 and the pressure element 8 on the counterpart section A, B, B 'to be bonded is determined by the length 13, which determines the relative difference between the dimensions Hold-down 6 and the pressure element 8 indicates, as in Fig. 3 shown.

The apparatus includes a carton sensor 10 for detecting a presence of a carton K on the overlay 1 and controls the alignment aid 3 such that it protrudes upward and before the introduction of a box K in the device on the support 1 and / or lowered during the pressure exerting by the pressure element 8 on the box K under the support 1.

Out Fig. 2 It is clear that a plurality of closing units 14, 14 'may be provided, wherein a closing unit 14 has an alignment auxiliary device 3, a hold-down 6, a pressure element 8 and a projection 7. Several such sealing units 14, 14 'are arranged with a common support 1 and a common glue applicator 4 along the processing side and can be used simultaneously or separately.

In the following, the method for bonding a carton will be described in more detail. An operator manually sets a box K on the overlay 1 ready. This carton K can be filled, for example, with packaged goods. The cardboard is merely aligned manually by aligning the portion a to be bonded corresponding to the cardboard dimension with the aid of the alignment aid 3, which is not movable along the support, on the machining side of the support 1 without any mechanical movement guidance. After alignment, the operator triggers the closing process via a two-hand switch, which is now carried out automatically.

By a glue applicator 4 adhesive is applied to the adhered portion a of the box K. For this purpose, the glue application device 4 is moved parallel to the machining side. The limitation of the glue trace c is effected by means of a dimensional sensor, preferably positioned on the adhesive application device, for detecting the dimension of the carton during the process of the glue applicator 4.

Thereafter, a hold-down 6 is lowered in accordance with the carton K on the surface of the cardboard and held to be bonded portion a by holding the carton through the hold-6 and the pad 1. Fig. 4 shows the state in which the hold-6 rests on the surface of the box K.

Now / a projection / several projections 7 is pressed from the support 1 from below against the hold-down 6 after aligning the cardboard against the cardboard from below. The alignment auxiliary device 3 is lowered below the support 1.

Subsequently, a pressing member 8 for pressing the adhered opposing portion A is brought to be bonded to the portion a in contact with the counter portion, brought the counter portion A to the portion a and finally the counter portion A to be adhered portion a as in Fig. 4 shown pressed and glued to it.

After a required pressing time, the pressure element 8 and the hold-down 6 are brought by the coupling 11 back into their respective stand-off position. The cardboard can now be manually rotated on the support 1 and another cardboard side be positioned on the processing side, so that the other sections b, b 'and the opposite sections B, B' of the box K can be glued. Alternatively, the carton can be removed from the device.

Claims (20)

Device for bonding a box (K) having a portion (a, b, b ') to be bonded and a counterpart portion (A, B, B') to be bonded, the apparatus comprising: a support (1) for receiving the carton, an alignment unit having an alignment aid (3) non-movable along the support for assisting manual alignment of the adherend (a, b, b ') of the paperboard on a processing side of the platen and operator access to provide a carton by an operator and manually aligning the carton with the help of the alignment aid, so that the provision and orientation according to the carton dimension can be done manually without any mechanical movement execution, an adhesive application device (4) movable along the processing side of the support for applying adhesive to the adherend (a, b, b ') of the carton on the processing side of the support, a hold - down (6) disposed over the overlay (1) and movable perpendicular to the plane of the overlay for lowering according to the carton dimension onto a paperboard surface and holding the portion (a, b, b ') to be bonded by holding the papermachine Cartons between the lowered hold-down (6) and the support (1), and a pressure element (8) for pressing the adhered counterpart section (A, B, B ') to the section to be bonded (a, b, b'). Apparatus according to claim 1, comprising a guide (9) for guiding the pressure element (8) to the portion to be bonded, and preferably designed such that the trajectory of the pressure element (8) during insertion at least in sections at an angle to the portion to be bonded (a, b, b ') is not equal to 0 °. Apparatus according to claim 1 or 2, wherein the hold-down (6) is formed as a bar which extends along the machining side, and preferably on the processing side of the support (1) is arranged. Device according to one of the preceding claims, comprising a projection (7), movable from the support (1) from below, preferably opposite the hold-down (6), preferably made of a flexible slip-resistant material, for pressing against the cardboard. Device according to one of the preceding claims, in which the alignment auxiliary device (3) is a strip, in particular a stop ruler. Device according to one of the preceding claims, in which the alignment auxiliary device (3) is movable downwards into the support (1) perpendicular to the plane of the support. Device according to one of the preceding claims, comprising a non-movable alignment auxiliary device (2), in particular a strip, on the support (1) perpendicular to the alignment aid (3). Device according to one of the preceding claims, in which the hold-down device (6) and the pressure element (8) are mechanically coupled by a coupling (11). Apparatus according to any one of the preceding claims, comprising a dimensional sensor for detecting the dimension of the carton along the processing side. Device according to one of the preceding claims, wherein the pressure element (8) is formed flat and perpendicular to the support (1) on the machining side of the support. Apparatus according to any one of the preceding claims, comprising a carton sensor (10) for detecting the presence of a carton on the overlay (1). Apparatus according to claim 11, arranged by the carton sensor to control the alignment aid (3) such that the alignment aid projects upwardly before and during insertion of a carton into the apparatus over the overlay (1) and / or during pressurization the pressure element (8) is lowered onto the cardboard under the support (1). Device according to one of the preceding claims, in which a closing unit (14) presses the alignment aid (3), the hold-down device (6), the pressure element (8) and preferably a projection (7) movable from below the support (1) from below the carton, and a plurality of closing units (14, 14 ') are arranged in a device with a support (1) and an adhesive application device (4) and, depending on the dimension of the carton along the processing side, are used simultaneously or separately. Method for bonding a cardboard box (K) with a portion to be bonded (a, b, b ') and a counterpart portion (A, B, B') to be bonded, comprising the following steps: merely providing a carton manually on a support (1), merely manual alignment of the section of the carton to be bonded in accordance with the carton dimension Assistance of an alignment auxiliary device (3), which is not movable along the support, on a machining side of the support (1) without mechanical movement execution, Application of adhesive to the adherend portion of the carton by an adhesive applicator (4), Lowering a hold-down (6) corresponding to the cardboard on the cardboard surface and holding the portion to be bonded (a, b, b ') by holding the box by the hold-down (6) and the support (1), Pressing the opposite portion to be bonded to the section to be bonded by a pressure element (8) and bonding the adhering to the opposite portion to be bonded to the section. A method according to claim 14, wherein a projection (7) of the support (1) from below, preferably opposite the hold-down (6), more preferably made of a flexible slip-resistant material, after aligning the carton and / or before and / or during the Holding the cardboard by the hold down against the cardboard from below. A method according to claim 14 or 15, wherein the alignment aid (3) is lowered below the support (1) prior to applying pressure to the counterpart portion. Method according to one of claims 14 to 16, wherein after bonding of the portion and the counter portion of the hold-down device (6) and the pressure element (8) are brought back into the respective starting position. A method according to any one of claims 14 to 17, wherein a carton sensor (10) controls that the alignment aid (3) projects upwardly before and during the insertion of a carton over the overlay (1) and / or during holding of the paperboard the hold-down (6) and the support (1) is lowered under the support. Method according to one of claims 14 to 18, wherein the cardboard is removed manually after bonding of the portion and the counter portion. Method according to one of claims 14 to 18, wherein the cardboard is manually rotated after adhering the portion and the counter portion on the support and further corresponding portions of the carton are glued according to claim 1.

Images