EP2286969B1 - Device for dividing plates - Google Patents

Description

The invention relates to a panel dividing installation, in particular a panel dividing saw, according to the preamble of claim 1.

A Plattenaufteilanlage of the type mentioned is from the DE 10 2004 062 048 A1 known. In this lie large-sized plate-shaped workpieces on a support table and are moved by means of a feed device to a saw. Above the saw line, a vertically movable pressure bar is arranged, which can be lowered pneumatically or motor to the workpiece, whereby the workpiece is clamped during a processing between the pressure bar and the support table. The workpieces are used for example for the manufacture of furniture. A label The machined, cut workpieces facilitates further processing later. For this purpose, in conventional working methods, labels are printed with a separate printer in order to later manually glue these onto the correspondingly machined workpiece. Also known from the market are elaborate gantry systems, which label the workpieces.

WO 2006/024058 A1 describes a Plattenaufteilanlage with a marking device which is arranged on a carriage, which in turn is arranged in the region of the feed table.

WO 2006/024058 A1 discloses a panel divider according to the preamble of claim 1.

The object of the invention is to further develop a panel splitter of the type mentioned so that the marking of the machined workpieces can be performed easier, faster and thus more cost-effective and compact construction of the panel splitter.

To solve the problem a Plattenaufteilanlage with the features of claim 1 is proposed. Embodiments of the invention are specified in subclaims. Further features which are important for the invention can be found in the description and the drawing, wherein the features, both alone and in different combinations, can be important for the invention without explicit reference being made thereto.

In the panel dividing installation according to the invention, workpieces are automatically marked with information. As a result, compared to a manual marking time is saved and reduces the workload of the operator. This is especially true if the information contains instructions to the operating personnel. When

Information comes so-called. Bar or barcode for optoelectronic post-processing, a numbering scheme or information about the dimensions and / or the intended use of the workpiece in question, these Enumeration is purely exemplary and not meant to be exhaustive.

By arranging in the area or in the immediate vicinity of the dividing line and thus the dividing device, so for example of sawing and / or milling equipment, the existing there pressing device, such as a pressure bar, can be used to set the workpieces during the application of information whereby a reliable and correct assignment of the information to the corresponding workpiece is ensured as well as a good quality of the application itself. In addition, the time during which the workpiece is split and therefore motionless, can be used to apply the information, thereby reducing the cycle times of the panel splitter stay fast despite this additional process step. Due to the independence of the agent from the pressing device, this can remain unchanged, whereby costs can be saved and the means for labeling can be retrofitted even in existing systems. In addition, vibrations and movements that the pressing device undergoes during operation are kept away from the means, which improves its work result.

According to the invention, the means for applying information to a parallel to the split line extending rigid and stationary support fixed or parallel to the saw line is arranged to be movable. This is a structurally particularly simple arrangement. An alternative arrangement is an arrangement on a boom, which is fastened, for example, to a lateral machine base, so that the means for applying the information can be arranged in the immediate vicinity of the split line, for example also pivoted to a specific desired position in the vicinity of the split line become can, for example, if the boom is a hinge bracket or extendable.

The invention further includes that the means for applying information is arranged on that side of the dividing line which points towards a discharge table. Thus, that side of the workpiece is provided with the information that belongs to the divided workpiece after the dividing operation. This prevents that the applied information is damaged for example by the pressing device and thus unusable.

It is also proposed in a development that the means for applying information is at least partially disposed on that side of the carrier or cantilever pointing towards the pressing device. As a result, the space is optimally utilized, and it can be provided with the information even very small workpieces that survive only slightly on the pressing device. Alternatively, however, the means may also be arranged at least partially on that side of the carrier or cantilever which points towards the unloading table and away from the pressing device. This facilitates accessibility for maintenance purposes, for example.

A simple and reliable horizontal positioning is ensured by the means comprising a carriage which is connected to a drive acting along the carrier, that is, for example connected to a circulating belt or a revolving chain, which is provided with a drive means is coupled. The preferred position can be set manually by the operating personnel; However, the preferred position can also be found or set automatically. So it is possible, for example, that sensors at least partially identify the outer boundaries of the split workpiece. A control and / or regulating device analyzes the sensor information (optionally with position information of a feed device for the workpieces) and then positions the means for drawing and / or reading information to a suitable location. On the other hand, the operator can enter the desired position via a data display station, which is then stored in the control and / or regulating device and processed in accordance with the controlled positioning of the means. As drive means, for example, an electric motor in question, but is also possible a spindle drive, or similar.

In the control and / or regulating device, the termination of the application process can advantageously also be monitored in order to prevent a subsequently divided and moving workpiece from disturbing the application process.

It is also proposed that the means for applying information comprise at least one printer or at least one laser device. To mark the workpieces thus advantageously a commercial device is used, which can be procured inexpensively. In a more elaborate embodiment, the control and / or regulating device and / or via evaluation of operating state information and / or evaluation of sensor information can be used to set up a letter / number combination for identifying the workpiece in the control and / or regulating device via inputs at the data display station. The control and / or regulating device ensures a unique identification of each workpiece by appropriate modification of the letter / number combination. The The manner of the modification is previously communicated by the operator via the data terminal of the control and / or regulating device. The identification can additionally be encrypted by a barcode (barcode) in order to enable opto-electronic post-processing if necessary.

In addition, it is proposed that the means for applying information is designed so that it applies the information directly to the workpiece. For this purpose, the license plate information is converted accordingly on average and deposited at the previously defined position on the workpiece. This is time-saving and therefore also cost-reducing.

Alternatively, it is proposed that the means for applying information is designed so that the information is first applied to an information carrier. For example, by choosing a suitable adhesive, the information carrier can be removed later easily and without affecting the workpiece. The use of labels also has the advantage over direct application that, given a rough surface of the workpiece, the imprint may be difficult to read. A clean printed label is always legible. It is also conceivable that the information is already applied to the information carrier in advance, and only the information carrier are applied to the workpieces in the panel splitter. This is useful, for example, when printing pure ad copy.

A further embodiment is characterized in that the means for applying an information means for sucking the information carrier, For example, a printed label includes. As a result, the information carrier is not damaged and can be easily released or discharged.

It is also proposed that the means for applying information have a transfer station in which the sucked label can be removed by an operator. Thus, a semi-automatic or semi-manual operation is possible, allowing a higher flexibility.

However, it is particularly preferred if the panel-splitting installation comprises an application device which can apply the information carrier, in particular an adhesive label, to the workpiece. This can be, for example, a labeller. This allows a fully automatic procedure.

In addition, it is proposed that the labeller apply a Radio Frequency Identification RFID tag. The RFID technology offers a particularly convenient way to store and read information.

It may be necessary to have several markings on the workpiece. Therefore, it is additionally proposed that a plurality of means for applying and / or reading information is provided. These must be positioned either manually or automatically depending on the position of the longitudinal section or the longitudinal sections before printing. In addition, this increases the processing speed.

It is also advantageous if the means for applying information at least partially vertically movable is. This means that the means for applying information can independently perform a movement in the direction of the workpiece. This makes the device more flexible and ensures clean application of the information. Namely, the quality of the application depends on the distance between the center and the surface of the divided workpiece in many application methods.

It is also particularly advantageous if the means for applying information comprises a device for cleaning the surface of the workpiece. This can preferably take place by means of a blow-off device, which ensures that the application and / or reading of the information is carried out on a surface of the workpiece which is as clean as possible and free from sawdust. This makes the Abringbring or reading safer.

Description of the figures

Figur 1

eine schematische Draufsicht auf eine Plattenaufteilanlage,

Figur 2

eine Vorderansicht der Plattenaufteilanlage von Figur 1;

Figur 3

eine perspektivische vergrößerte Darstellung eines Bereichs der Plattenaufteilanlage von Figur 1;

Figur 4

eine weitere perspektivische Darstellung des Bereichs von Figur 3;

Figur 5

eine weitere perspektivische und geschnittene Darstellung des Bereichs von Figur 3;

Figur 6

eine Vorderansicht des Bereichs von Figur 3; und

Figur 7

eine Draufsicht auf den Bereich von Figur 3.

An embodiment of the invention will be explained by way of example with reference to FIGS. Show it:

FIG. 1

a schematic plan view of a Plattenaufteilanlage,

FIG. 2

a front view of the Plattenaufteilanlage of FIG. 1 ;

FIG. 3

a perspective enlarged view of a portion of the Plattenaufteilanlage of FIG. 1 ;

FIG. 4

another perspective view of the area of FIG. 3 ;

FIG. 5

another perspective and sectional view of the area of FIG. 3 ;

FIG. 6

a front view of the area of FIG. 3 ; and

FIG. 7

a top view of the area of FIG. 3 ,

A panel splitter carries in FIG. 1 overall, the reference numeral 10. It comprises as a splitting a saw, which in FIG. 1 but not shown. Only the dividing or sawing line is indicated by a dot-dash line with the reference numeral 12. Other dividing devices are also suitable, for example a milling unit. The saw line 12 is present in a machine table 13, and above saw line 12 and machine table 13, a vertically movable pressure bar 14 is arranged, which forms a pressing device, with which a workpiece during processing by the saw against the machine table 13 can be pressed.

In addition to the panel dividing installation 10 shown here, there is a support table 16 which is formed, for example, by a plurality of rollers (not shown). On the support table 16 is in the in FIG. 1 illustrated output configuration of the panel splitter 10 a stack of plate-shaped workpieces 18 a. This can be moved by a first feed device 20 in the feed direction (arrow 22) and also counter to the feed direction 22 by the workpiece stack 18a is gripped by first gripping means 24a to 24g. These are attached to a first carrier 26.

The panel splitter 10 further comprises a second advancing device 28, which in the in FIG. 1 shown rest position very close to the saw line 12 is arranged. The second feed device 28 comprises a second carrier 30, on the side, to the support table 16 out, a second gripping device 32 is attached.

The second carrier 30 is, as will be explained in more detail below, attached to the underside of a third carrier 34 which extends parallel to the feed direction 22 and laterally limits the support table 16. Parallel to the third carrier 34, a fourth carrier 36 is present on the other side of the support table 16. The first carrier 26 is mounted in the manner of a portal on the upper sides of the third carrier 34 and the fourth carrier 36.

Transverse to the feed direction 22, a feed region 38 is defined by the support table 16 and the two carriers 34 and 36, in which the workpieces 18 to be moved by the feed devices 20 and 28 can be arranged. The feed area 38 again has, transverse to the feed direction 22, a first width area 40 and a second width area 42, which in FIG FIG. 1 are indicated by corresponding width arrows. The first width area 40 is defined by the first gripping means 24a to 24g being disposed therein, and the second width area 42 being defined by the second gripping means 32 being disposed therein. One recognizes FIG. 1 in that the first width region 40 directly adjoins the second width region 42 but does not overlap it. Furthermore, one recognizes FIG. 1 in that the second carrier 30 is held laterally outside the feed area or from the second width area 42, respectively.

The first carrier 26 is arranged laterally from the third carrier 34 and mounted by means of a non-visible roller support in a groove on the upper side of the formed as a double T-profile third carrier 34. The storage of the first carrier 26 on the fourth carrier 36 is the same as a mirror image. The second carrier 30 of the second feed device 28 is designed as a carriage or carriage, which is guided on a non-visible in the figure rail on the underside of the third carrier 34 longitudinally displaceable. The second carrier 30 is thus held laterally outside of the feed area.

Both gripping devices 24 and 32 have at their end pointing in the direction of feed 22 upper and lower gripping jaws. While the lower jaws are rigid, the upper jaws can be moved in the vertical direction. In this way, between the gripping jaws of a gripping device 24 and 32 workpieces are jammed. Of the seven first gripping means 24a to 24g, the four gripping means 24a to 24d, which are at least approximately adjacent to the second advancing means 28, can be moved from a front advancing position to a rear rest position and back. The other first gripping means 24e to 24g have rest position and feed position lying vertically one above the other.

One recognizes FIG. 1 in that the second width region 42, which is defined by the width of the second gripping device 32, is significantly smaller than the first width region 40, in which the first gripping devices 24a to 24g are arranged at least during a feed movement. In the presently illustrated embodiment, the width of the second Width range 42 only about 4% of the first width range 40 and second width range 42 composed feed area 38th

In this case, the height of a free space (without reference numeral) below the second gripping device 32 in its raised rest position corresponds approximately to the maximum height of a stack of workpieces gripped by the first gripping device 24. In the same way, the height of a clearance between the bottom of the first gripping device 24 and the support table 16, in the raised rest position of the first gripping device 24, approximately corresponds to the maximum height of a stack of workpieces gripped by the second gripping device 32.

In the FIG. 1 shown plate-separating unit 10 has on the side facing away from the support table 16 side of the saw line 12 and the pressure bar 14 on an existing multiple parts sampling stage 44. From this, as will be explained in more detail below, the divided by the saw 12 workpieces 18 are removed by an operator of the panel splitter 10 or fed again for a further division of the first feed device 20 and / or the second feed device 28.

Furthermore, the panel-dividing system 10 shown here concretely has a turntable 46 in the region of the support table 16. The maximum outer radius, which is swept in upon rotation of the turntable 46, is in FIG. 1 indicated by a dashed line by the reference numeral 48. In addition, on the one hand on the pressure bar 14 and the other on the first carrier 26 in each case two alignment stops 50 are provided, which are similar to the Gripping means 24 and 32 can be moved from a lowered working position to a raised rest position and back. However, the turntable 46 and the registration stops 50 are optional.

Also from the top view FIG. 1 It can be seen that above the sawing line 14, but towards the unloading table 44, there is a portal-like support 52 extending parallel to the sawing line 12, on which a means for applying information in the form of a pressure device 54 is held displaceable parallel to the sawing line 12. Also, a drive 56 for the movement of the printing device 54 along the saw line 12 is in FIG. 1 shown schematically. The components just mentioned are also in total FIG. 2 visible, noticeable. You will now be more detailed with reference to the FIGS. 3 to 7 explained. In principle, however, it is also conceivable for the pressure device 54 to be arranged rigidly at one point, ie not displaceable, so that the drive 56 can be dispensed with. Furthermore, a variant is conceivable in which instead of extending over the entire width of the system support only a laterally mounted boom is present. This can for example be attached to a lateral machine base on which the pressure bar 14 is held.

The carrier 52 is a rigid support in the form of a square tube which is completely independent of the pressure bar 14 and is rigidly mounted in the area of lateral machine feet 57. These machine feet belong to an overall support device, on which also the pressure bar 14 is held. In principle, however, all other types of carriers are possible. The means for applying information - in the present case in the form of the printing device 54 - is therefore not on the pressing device - present in Form of the pressure beam 14 - attached or hangs in any other way with this. In the present embodiment, as above all FIG. 5 it can be seen on the pressure bar 14 facing side of the carrier 52 a longitudinally to the longitudinal extent of the carrier 52 extending rail 58 is fixed, on which a carriage 60 is slidably held. A housing 64 is fastened to the carriage 60 via a series of attachment angles 62, which housing is arranged at least partially below the support 52. The housing 64 again comprises a box-shaped portion 64a and a cylindrical portion 64b. The box-shaped portion 64a is primarily for receiving a printer, which is not shown in the drawing, however. The cylindrical housing portion 64b serves to receive a label magazine, which is also not shown in the drawing. The labels serve as information carriers, the printer for applying the information to the labels.

On the side of the housing 64, namely on the box-like portion 64a, an applicator 66 is attached. The application device 66 comprises two guides 68, in each of which a guide rod 70 is held displaceably. At the lower end of the two guide rods 70, a support plate 72 is attached. About a drive, not shown, for example, a pneumatic cylinder or an electric spindle drive, an electric drive, or the like, the support plate 72 can be moved vertically downwards, being guided during this movement by the guide rods 70 in the guides 68.

A link chain 74 connects the housing 64 to a stationary area of the panel dividing plant 10. In the Link chain 74 control lines are guided, which drive the existing printer 64 in the housing 64 and the applicator 66 and provide energy. As an alternative to the link chain 74, wireless transmission of the control signals is also conceivable. It would also be possible to transmit the control signals via sliding contacts in the region of the rail 58.

As in particular from the Figures 3 and 5 it can be seen, the carriage or carriage 60 is connected to a toothed belt 76, which is stretched between two sprockets, of which, however, only one in FIG. 5 is shown, which carries the reference numeral 78. The toothed rollers 78 have a substantially horizontal axis of rotation which is substantially orthogonal to the sawing line 12. In the FIG. 5 shown sprocket 78 is connected via a gear 80 with an electric motor 82. Electric motor 82, gear 80 and timing belt 76 form the already mentioned above drive 56. Alternatively, the carriage or carriage 60 can be moved by another drive, for example, an electric motor which cooperates with a stationary rack, or by a pneumatically actuated cylinder. This is based on the consideration that a mobility of the printing device 54 over the entire width of the system or the entire length of the saw line 12 is not required because the information mainly in the in FIG. 1 lateral edge area are applied.

It can be seen from the drawing that the printing device 54 is arranged at least partially on the side of the carrier 52 facing the pressing device 14. It is also conceivable that the pressure device 54 on the of the pressing device 14th away and to the operator-facing side of the carrier 52 is arranged.

The plate dividing plant 10 operates as follows: Plate-shaped workpieces can be divided by the two feed devices 20 and 28 next to each other and at the same time by the saw with different sectional images, ie independently. During the actual sawing process, the workpieces are fixed between the machine table 13 and the pressure bar 14. They usually stand in the direction of removal table 44 on the pressure bar 14.

By means of a control and regulating device, not shown, which controls or controls the operation of the panel splitter 10, labels are applied to the captured by the pressure bar 14 workpieces, which are provided with workpiece-specific information. This is done as follows: The positioning of the printing device 54 so that the label can be applied to the desired workpiece is done by a corresponding control of the drive 56, so the motor 82. In this way, the toothed belt 76 is moved via the sprocket 78, which in turn the Carriage 60 is placed along the rail 58 in a desired position. Meanwhile, the printer accommodated in the box-shaped part 64a of the housing 64 prints the label provided for the corresponding workpiece, using a label from the magazine in the cylindrical housing portion 64b.

The printed label is transferred from the printer to the underside of the carrier plate 72, where it adheres, for example, by pneumatic vacuum. The adhesive side of the label points down, the Printed side up, so to the support plate 72 out. Then, the drive, not shown, of the applicator 66 is driven, so that the support plate 72 is moved down, being guided during this movement by the guide rods 70 and the guides 68. The support plate 72 is lowered until the label touches the top of the corresponding workpiece and sticks there. It is also possible that the support plate 72 is lowered only so far that it still has a certain distance from the top of the workpiece, and the label is then blown by a corresponding pneumatic device on the top of the workpiece.

The carrier plate 72 is then raised again to the area of the printer to be provided there with a new printed label, which is then applied to the next workpiece in the manner just described. The process of applying the label takes place simultaneously with the sawing of the workpiece by the saw 12, but can also be done before or after. Once the sawing operation and the process of applying the label to the workpiece are completed, the pressure bar 14 lifts, and the sawed and labeled workpiece is deported to the unloading table 44 by the remainder of the workpiece still held by the feeders 20 and 28, respectively , There it can be removed by an operator and supplied, for example, provided stacking carriage (not shown).

In the embodiment described above, a single printer is received in the housing 64 and a single applicator 66 is provided. It is also conceivable that a plurality of application devices are provided by one or more printers with respective labels. In this way, the application process of the labels on the workpieces could be accelerated especially if several workpieces are cut off from the saw simultaneously and / or in rapid succession. It is also to be understood that the device 66 described above for applying labels to the sawed workpieces or, more generally, an information applying means with the technology and arrangement described above not only in a Plattenaufteilanlage 10 with two parallel and independently operating feed devices 20 and 28 can be used, but in virtually any panel splitter with any number of feeders. In addition, other forms of application devices 66 are conceivable, for example by inflation, throwing, etc.

Embodiments are also conceivable in which no printer is used, but another device with which information can be assigned to a workpiece. This includes, for example, a laser device, with which, if appropriate, corresponding information can be applied directly to the surface of the workpiece. It would also be conceivable that the printer imprints the information directly on the surface of the workpiece, without a label or other information carrier is used. In addition, any combination of the technologies just described are possible.

In an embodiment, not shown, of the panel splitter, sensors may detect the outer dimensions of the workpieces resting on the platen. This sensor information may be sent to the controller, which then automatically determines the appropriate position for printing. That the print position does not have to be entered manually via a terminal. For a further refinement of the automatic determination of the printing position, position information of the feed and tensioning device can be used in addition thereto. This position information can be determined, for example, via other sensors or are already known control of the entire panel splitter.

In a further embodiment of the panel splitter, the information can be stored in an RFID transponder (Radio Frequency Identification / combination of transmitter and responder) and mounted on the workpiece. In this method, information can be stored with relatively simple means in a passive electronic storage element and read out electronically without there being visual contact with the storage element from a reading device. If required, relatively large amounts of information can be stored (> 1k bytes) and read out within a range of several meters - ie very uncomplicated. The RFID transponders can be made very thin and with a self-adhesive layer and used several times. In a very simple and inexpensive embodiment of the RFID transponder with a very small memory element, only one reference number can be stored on the RFID transponder. In this case, the information content of the memory element essentially corresponds to the bar code described above. All additional information about the reference number or the bar code including a date and a time can be stored and managed centrally in an electronic computer network, for example on a server.

Not shown, but optionally present in the means for applying information, a device for cleaning the surface of the workpiece, for example in the form of a brush roller and / or a blowing nozzle.

Claims (14)

1. A panel sizing system (10), which includes a cutting device for cutting apart panel-like workpieces along a cutting line (12) as well as a pressing means (14) for fixing the workpieces during the cutting procedure, the system having, in the vicinity of the cutting line (12), at least one means (54) for applying a piece of information to a workpiece, characterized in that the means (54) is not secured to the pressing means (14), and the means (54) for applying a piece of information to a rigid and stationary carrier (52) extending parallel to the cutting line (12) or to a preferably laterally secured outrigger is located fixedly or movably parallel to the cutting line (12); and that the means (54) for applying a piece of information is located on the side of the cutting line (12) that points toward a removal table (44).
2. The panel sizing system of claim 1, characterized in that the means (54) for applying a piece of information is located at least partly on the side of the carrier (52) or outrigger that points toward the pressing means (14).
3. The panel sizing system of claim 1, characterized in that the means (54) for applying a piece of information is located at least partly on the side of the carrier (52) or outrigger that points away from the pressing means (14).
4. The panel sizing system (10) of one of the foregoing claims, characterized in that the means (54) for applying a piece of information includes a sled or carriage (60), which is connected to a drive mechanism (56) that is capable of moving it parallel to the cutting line (12).
5. The panel sizing system (10) of one of the foregoing claims, characterized in that the means (54) for applying a piece of information includes at least one printer or a laser device.
6. The panel sizing system (10) of one of the foregoing claims, characterized in that the means (54) for applying a piece of information is embodied such that it applies the information directly onto the workpiece (14).
7. The panel sizing system (10) of one of the foregoing claims, characterized in that the means (54) for applying a piece of information is embodied such that the information is first applied to an information carrier.
8. The panel sizing system (10) of claim 7, characterized in that the means (54) for applying a piece of information includes a device for picking up a printed label by suction.
9. The panel sizing system (10) of claim 8, characterized in that the means for applying a piece of information has a transfer station, in which the label picked up by suction can be removed by a human operator.
10. The panel sizing system of one of claims 7 or 8, characterized in that it includes an applicator device (66), which is capable of applying the information carrier, in particular an adhesive label, to the workpiece.
11. The panel sizing system (10) of one of claims 7 through 10, characterized in that the information carrier is an RFID label.
12. The panel sizing system (10) of one of the foregoing claims, characterized in that it includes a plurality of means (54) for applying a piece of information.
13. The panel sizing system (10) of one of the foregoing claims, characterized in that the means (54) for applying a piece of information is at least partially movable vertically.
14. The panel sizing system (10) of one of the foregoing claims, characterized in that the means (54) for applying a piece of information includes a device for cleaning the surface of the workpiece (14).

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