Wood processing device for processing board-shaped workpieces made of wood or wood substitutes and method for operating same

Abstract

The woodworking device (1) for processing flat workpieces (W) made of wood or wood substitutes has a processing area (20). The workpiece (W) remains in the processing area (20) during processing. The processing area (20) has at least one processing unit (19) with which the workpiece (W) can be processed, as well as a feed or insertion system (16, 17) designed to grip the flat workpiece (W) and insert it into the processing area (20), and a feed area (11) into which a workpiece can be automatically or manually fed for subsequent gripping by the feed or insertion system (16, 17). The woodworking device (1) has a first side (A) facing away from the processing area (20) and a second side (B) facing the processing area (20). The feed area (11) is located on the first side (A).

Description

[0001] The invention relates to a woodworking device for processing plate-shaped workpieces made of wood or wood substitutes according to the preamble of claim 1 and a method for operating a woodworking device in which the workpieces are fed according to one of the preceding claims. The woodworking device according to the preamble of claim 1 is known from document DE 10 2014 204 695 A1.

[0002] Another exemplary device is known, for example, from DE 10 2017 001 703 A1. These devices typically have, as shown in Fig. 1The workpieces W are fed into a processing area 20, where they are processed by processing units 19. For example, sawing, milling, or edgebanding operations can be performed there. Typically, such a device has an automated infeed or feed system 16, 17, which grips the workpieces W and guides them into the processing area 20. They are then usually guided along a chain conveyor 13 in the feed direction X. Accordingly, the workpiece W must be manually fed into a loading area 11 of the woodworking device 1 so that it can later be gripped by the infeed or feed system 16, 17 and moved into the processing area 20.Each woodworking device 1 has – on one side of line L – a first side A (hereinafter also referred to as A-side) facing away from the working area 20 and – on the other side of line L – a second side B (hereinafter also referred to as B-side) facing the working area 20. Therefore, in order for a workpiece W to enter the working area 20, the loading area 11, which usually contains supports 15, 12 and / or stops 14 for the workpieces W, is necessarily located on the B-side of the woodworking device 1.

[0003] However, when the workpiece is fed in manually, it is possible that the operator 18 may reach the processing area 20 or at least the operating area of ​​the insertion or feed system 16, 17 with their hand. This poses a considerable hazard.

[0004] The object of the present invention is therefore to further develop the aforementioned wood processing device in such a way that this potential danger is reduced or eliminated.

[0005] This problem is solved by a wood processing device having the features of claim 1 and a method for operating such a device having the features of claim 8.

[0006] Advantageous embodiments can be found in the respective dependent claims.

[0007] The woodworking device according to the invention for processing flat workpieces made of wood or wood substitutes has a processing area in which the workpiece is located during processing and which has at least one processing unit with which the workpiece can be processed. Furthermore, the woodworking device includes a feed or insertion system designed to grip the flat workpiece and insert it into the processing area. The woodworking device according to the invention also has a loading area in which a workpiece can be automatically or manually loaded for subsequent gripping by the feed or insertion system. The woodworking device has a first side facing away from the processing area and a second side facing the processing area.According to the invention, the task area is arranged on the first side.

[0008] This prevents personnel from putting their hands into a danger zone when handling a workpiece.

[0009] Advantageously, the insertion or pull-in system can be designed to insert or pull the workpiece into the processing area in a first direction, particularly by means of cams or grippers that are movable in a first direction. Whether insertion or pull-in is chosen depends on the geometry of the woodworking machine and also on the size of the workpieces to be processed.

[0010] According to a preferred embodiment of the present invention, the woodworking device has a first stop, in particular a stop ruler, arranged, in particular exclusively, on the second side. This stop is displaceable in a second direction, in particular perpendicular to the first direction. In this way, the workpiece, which is inserted manually, can be inserted in the second direction until it abuts the first stop. It is also quite possible, especially if the first stop is designed as a stop ruler, for the workpiece to be manually pushed along the first stop on the first side until the insertion or feed system becomes active and grips the workpiece. In any case, the first stop is designed to limit the insertion of the workpiece in the feed area in the second direction.

[0011] Advantageously, the woodworking device according to the invention can also be provided with at least one second stop, movable in the second direction, which is designed to limit the workpiece's insertion into the loading area in the first direction. In this way, the workpiece can be manually positioned so that it is aligned for transfer to the infeed or feed system in both directions. In a preferred embodiment, at least two second stops are provided. This prevents the workpiece from being properly positioned when manually inserted, especially with larger workpieces. Preferably, at least one of the second stops is arranged on the first side and at least one second stop is arranged on the second side.

[0012] The at least one second stop can have a holding device, in particular a gripping device, to hold the workpiece. Thus, when the workpiece is pushed against the second stop in the feed area, the second stop can then grip and fix the workpiece. Optionally, the second stop can also be designed to be slidable in the first direction and / or in the second direction. In this respect, the second stop can also be part of the feed or insertion system of the woodworking device according to the invention.

[0013] According to the invention, a through-feed machine is provided in the machining area, through which workpieces pass in a single direction, and the machining unit is part of this through-feed machine. The direction of travel can be identical to the first direction described above. In this way, a workpiece gripped by the feed system can be inserted and immediately machined further in a continuous pass.

[0014] It is also possible for the feed area to be designed so that the workpiece can be fed in a direction different from the throughput direction, particularly perpendicular to it. This feed direction can be identical to the second direction mentioned above. In this way, the feeding process can be carried out with relatively short distances. Workpieces inserted in the feed direction strike a stop on the second side and are then picked up from there by the feed or infeed system.

[0015] The invention further relates to a method for operating a wood processing device, in which plate-shaped workpieces made of wood or wood substitutes are fed to a wood processing device described above. The method comprises the following steps: i) Providing a plate-shaped workpiece. ii) Automated or manual feeding of the provided workpiece, which can be done in particular by placing the workpiece on a tray, with the feeding taking place in the feeding area on the first side. The workpiece is pushed manually or automatically against the first stop and / or at least a second stop. iii) Gripping the workpiece thus fed by the infeed or feed system. iv) Inserting the workpiece gripped by the infeed or feed system into the machining area. v) Machining the workpiece by a machining unit arranged in the machining area.

[0016] Depending on the orientation, portrait or landscape format, of the workpiece to be fed in, different process variants can be used.

[0017] Preferably, according to a first embodiment of the method according to the invention, in step ii) the workpiece is first pushed automatically or manually from the loading area against the stop pre-positioned on the second side and then against a second stop. Subsequently, the impact of the workpiece against the second stop is detected. This embodiment is particularly suitable for loading rectangular workpieces whose shorter sides run parallel to the feed direction of the insertion or feed system or the feed direction of the workpiece in the processing area.

[0018] A second variant of the method according to the invention can provide that in step ii) the workpiece is first pushed automatically or manually from the loading area against the first stops on the first and second sides and against the first stop. After step iii) and before step iv), the first stop is moved together with the workpiece on the second side to a predetermined end position. This variant can be selected if the longer sides of a rectangular workpiece run parallel to the feed direction of the insertion or feed system or the feed direction of the workpiece in the machining area.

[0019] In principle, it can also be provided that after step ii) and before step iii) the workpiece is guided manually or automatically along the first stop in the direction of the machining area.

[0020] According to an advantageous embodiment of the inventive method, it can be provided that the workpiece is fed in the feeding direction, which preferably corresponds to the second direction described above, and inserted into the processing area in a through-direction different from the feeding direction, in particular perpendicular to it, which can be identical to the first direction described above.

[0021] Preferably, the workpiece is machined in the machining area in a continuous pass, especially in the through-pass direction described above.

[0022] The invention is described below with reference to the Figures 1 to 8 explained in more detail. Fig. 1 shows a woodworking device according to the state of the art in a top view. Fig. 2 Figure 1 shows a top view of a woodworking device according to the invention. Figs. 3 to 5The figures show a step sequence of a method according to the invention, based on a first variant. Figs. 6 to 8 show a step sequence of a method according to the invention in a second variant.

[0023] The in Fig. 1 The device shown has already been explained at the beginning. The one already mentioned in connection with Fig. 1 The given explanation of the reference symbols also applies analogously to the Figs. 2 to 8 .

[0024] Unlike in Fig. 1 The task area 11 of the woodworking machine 1 is not located on the B-side, but on the A-side, as can be seen particularly in Fig. 2The stop 14, which in the example shown is preferably designed as a stop ruler, can be moved parallel to the Y direction in the direction of arrow P1 and fixed in a predetermined position. In this way, workpieces of different sizes can be placed in the loading area 11 and inserted into the machining area 20. A table 11a is preferably arranged in the loading area 11, which serves as a support surface on the A-side when the workpiece is loaded. On the B-side, the supports 15 and 12 also serve as supports for the workpiece, which is pushed from the A-side to the B-side in a loading direction Y. Preferably, there are further stops 10a and 10b on the A-side and the B-side, respectively, which are adjustable parallel to the Y direction (arrow P3, arrow P4) and can also be fixed at suitable locations. The stops 10a and 10b can, for example, also be designed as grippers and optionally be movable in the X direction.Finally, cams or grippers 16, 17 can be provided as part of a insertion or feed system, designed to grasp the workpiece and move it parallel to direction X either by pulling or pushing. These cams or grippers 16, 17 are preferably displaceable in the direction of arrow P2 parallel to direction X, which is also referred to as the feed direction, and can also be lowered perpendicular to the plane of the drawing so that the workpiece feed is not obstructed.

[0025] The method according to the invention is described below with reference to the Figures 3 to 5 explained in more detail.

[0026] In Fig. 3 The diagram shows how a workpiece W is placed on the table 11a of the loading area. The workpiece W is then pushed in the direction of the arrow from side A towards the stop ruler 14 until it hits the stop ruler. Fig. 4The grippers or cams 17 are lowered so that the movement of the workpiece W from side A to side B is not obstructed. The grippers or cams 16, 17 are then moved into position to grip or push the workpiece W. A feed then occurs in the through-direction X towards the machining area 20. Fig. 5 , until the workpiece W is transferred there and preferably machined in a continuous pass. For this purpose, the machining unit 19 is, according to the invention, part of a continuous pass machine. The aforementioned sequence of steps is particularly suitable for workpieces W that are oriented vertically with respect to the XY plane, i.e., with their longer side pointing in the X direction.

[0027] One method variant is in Figs. 6 to 8 shown. There, the workpiece W is first placed back onto the table 11a in the loading area 11 on the A-side and pushed against the stop 10a and also the stop 14, Fig. 6In this case, the grippers 16 come into play and take over the workpiece W. Then the stop 14 is adjusted in the Y direction until the corresponding Y position is reached, depending on the size of the workpiece W. Fig. 7 . Subsequently, according to the invention, the workpiece is moved in direction X or the throughput direction towards the machining area 20. In this case, the components of the feed or insertion system, designed here as grippers 16, serve this purpose.

[0028] Since the moving components are located exclusively on the B-side, there is no risk of an operator coming into contact with such moving components when placing the workpiece, thus reducing the risk of jamming or other injuries.

Claims

1. Wood processing device (1) for processing board-shaped workpieces (W) of wood or wood substitutes, comprising: a processing area (20) in which the workpiece (W) is stationary whilst being machined and which has at least one processing assembly (9) with which the workpiece (W) can be processed; an insert or entry system (16, 17) which is configured to seize the board-shaped workpiece (W) and slide it into the processing area (20), a pick-up area (11) in which a workpiece can be picked up automatically or manually for subsequent seizure by the insert or entry system (16, 17), wherein the wood processing device (1) has a first side (A) that faces away from the processing area (20), and a second side (B) that faces the processing area (20), characterised in that the pick-up area (11) is arranged on the first side (A), wherein the processing area (20) is provided with a continuous throughfeed machine through which the workpieces (W) run in a throughfeed direction (X), and the processing assembly (19) is part of this throughfeed machine, wherein the processing area (20) comprises a chain track (13) along which the workpieces (W) are guided through the processing area (20).

2. Wood processing device (1) according to Claim 1 characterised in that the insert or entry system (16, 17) is configured to slide or draw the workpiece (W) into the processing area (20) in the throughfeed direction (X), in particular by means of cams or grippers (16, 17) that are displaceable in the throughfeed direction (X).

3. Wood processing device (1) according to one of the preceding claims, characterised in that the wood processing device (1) has a first stop (14), in particular a stop line, which is arranged in particular exclusively on the second side (B) and which is displaceable in a second direction (Y), in particular perpendicular to the feed direction (X), wherein the first stop (14) is configured to restrict the pick up of the workpiece (W) in the pick-up area (11) in the second direction (Y).

4. Wood processing device (1) according to one of the preceding claims characterised in that it has at least one second stop (10a, 10b) that is displaceable in the second direction (Y) and is configured to restrict the pick up of the workpiece (W) in the pick-up area (11) in the throughfeed direction (X).

5. Wood processing device (1) according to Claim 4 characterised in that at least two second stops (10a, 10b) are provided wherein at least one stop (10a) of the second stops (10a, 10b) is arranged on the first side (A) and at least a second (10b) of the second stops (10a, 10b) is arranged on the second side (B).

6. Wood processing device (1) according to one of the Claims 4 or 5 characterised in that the at least one second stop (10a, 10b) has a securing device, in particular a gripper device, in order to hold the workpiece (W).

7. Wood processing device (1) according to one of the preceding claims characterised in that the pick-up area (11) is configured so that the workpiece (W) can be picked up in a pick-up direction (Y) which is different from the throughfeed direction (X) and in particular perpendicular thereto.

8. Method for operating a wood processing device in which board-shaped workpieces (W) of wood or wood substitutes are supplied to a wood processing device (1) according to one of the preceding claims wherein the method comprises the following steps: i) providing a board-shaped workpiece (W) ii) automatically or manually picking up the prepared workpiece (W), in particular by depositing the workpiece (W) on a support place (11a) in the pick-up area (11) on the first side, wherein the workpiece (W) is pushed manually or automatically against the first stop (14) and / or at least a second stop (10a, 10b) iii) grasping the thus deposited workpiece (W) by the insert or entry system (16, 17) iv) sliding the workpiece (W) seized by the insert or entry system (16, 17) into the processing area (20), iv) processing the workpiece (W) by a processing assembly (19) that is arranged in the processing area (20).

9. Method according to Claim 8 characterised in that in step ii) the workpiece (W) is first pushed automatically or manually out from the pick-up area (11) against the stop (14) previously positioned on the second side (B), and then against a second stop (10a, 10b), and that the stopping of the workpiece (W) against the second stop (10a, 10b) is detected.

10. Method according to Claim 8 characterised in that in step ii) the workpiece is first pushed automatically or manually out from the pick-up area (11) against the first stops (10a, 10b) on the first and second sides (A, B) and against the first stop (14), wherein after step iii) and before step iv) the first stop (14) is moved together with the workpiece (W) on the second side (B) to a predetermined end position.

11. Method according to one of Claims 8 to 10 characterised in that after step ii) and before step iii) the workpiece (W) is guided along manually or automatically at the first step (14) in the direction of the processing area.

12. Method according to one of Claims 8 to 11 characterised in that the picking up of the workpiece (W) takes place in a pick-up direction (Y) and the insertion into the processing area (20) takes place in a throughfeed direction (X) that is different from the pick-up direction (Y), in particular perpendicular thereto.

13. Method according to one of Claims 8 to 12 characterised in that processing the workpiece (W) in the processing area (20) takes place in continuous feed, in particular in the throughfeed direction (X).

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