ES2332824T3 - DEVICE AND PROCEDURE FOR PREPARING A WORK PIECE. - Google Patents

Abstract

Device (10) for the preparation of a workpiece (2) which preferably consists of at least parts of wood, woody fibers, plastic materials or the like, comprising: a tool (11) for carrying out the processing of the work piece (2); a transport device (6) with a feed side (6A) for the feed and an evacuation side (6C) for the evacuation of the workpiece (2) to or from the tool (11), where the Workpiece (2) is transported in a transport plane that is arranged in a transport device (6) in at least one transport direction (x), where the transport device (6) has at least one side supply (6A) a buffer zone (A) in which a next workpiece (2A) is positioned during the workpiece (2B); a support device (4) for holding the workpiece (2) during the processing by the tool (11) in a processing plane that is in a processing area and in a plane other than the transport plane and for the transport of the workpiece from the feed side (6A) to the evacuation side (6C), characterized in that the buffer zone (A) and / or an evacuation zone (C) at least partially overlap the zone processing (B), especially in a perpendicular projection with respect to the transport plane or with respect to the manufacturing plane.

Description

Device and procedure for developing a Workpiece.

The present invention relates to a device for preparing a workpiece preferably in tables form. The invention relates in this case especially to a machine for the elaboration under floor of the pieces of work in the form of tables that are preferably a link in the Production line in a production line.

State of the art

In the description of the state of the art a then all address indications have been indicated in a system of Cartesian coordinates. The x address and the address and are in the transport plane of a device transport, where address x represents the address of transport. The z direction is perpendicular to the plane Of transport.

According to the state of the art a development of work pieces in a processing machine with a processing zone B that extends at least along The entire length of a work piece. Figures 2 and 3 show two different embodiments of the state of the technique.

The two embodiments contain a tool 211, 311 with which a workpiece is made 202B, 302B and which is held by a support device 204, 304. The work pieces are transported by a device transport 206, 306 to the working machine 210, 310. Since tool 211, 311 continuously produces a piece of work 202B, 302B after another and the elaboration of a piece of Work 202B, 302B requires work time 202A, 302A next is ready for crafting while the tool 211, 311 still produces workpiece 202B, 302B current.

Figure 2 shows an exemplary embodiment in which tool 211 is mobile in two directions (x, y) perpendicular to the transport direction x and the support device 204 is mobile in parallel with respect to the transport x direction.

The device 210 is divided into three zones A, B and C. Zone A is a buffer zone in which the piece is Next 202A job is left during the elaboration of the piece of current 202B job, that is to say "park". In zone B you prepares the current 202B work piece and then deposits it in the zone C for evacuation. For this the workpiece 202C that It is in zone C and has to be evacuated.

The support device 204 slides in the address x through buffer zone A and welcomes the piece of work positioned in the buffer zone. For the elaboration the support device 204 moves to the workpiece held in the x direction above the tool 211 that is arranged in a discontinuity 208 of the transport device 206. The tool 211 moves the necessary part in the direction, so that any discretionary site of the work piece 202B.

Since, however, the piece of 202B work along the entire length of the processing area B must present essentially twice the length of the piece of work to ensure that workpiece 202B is also can move back in case they should be Several elaboration steps are necessary. In this processing area B other work pieces 202A, 202C must not arrive during the elaboration, since then two pieces can collide of work.

After processing the work piece is then transported by transport device 206 out of the processing area towards zone C and is evacuated to continuation.

Such a machine has a need high space, which is an essential disadvantage for machines which are usually used in a production chain.

Another embodiment is shown in the Figure 3. In this example, tool 311 can be moved in the three directions x, y, z. The division of zones A, B, C is the same, where processing area B should only present the length of a workpiece 302B. On the contrary the discontinuity 308 is effected essentially greater than in the first example of realization of the state of the art. The discontinuity 308 in this case essentially has the size of the processing area B. This is so because during processing only tool 311 is moved, however, the device support 304 and workpiece 302B are still inside the processing area B. The workpiece is first deposited in buffer zone A, there it is hosted by the mobile support 304 in the transport direction x and moves over the area of processing B. After processing the support deposits the workpiece in zone C and the workpiece is evacuated by the transport device 306.

Also in this embodiment the machine it is still relatively large and has the additional disadvantage that in the processing area, the large area must be interrupted transport device, since the tool needs this area for the elaboration of work pieces. Therefore the support device 304 is required to transport itself above the discontinuity every piece of work that passes.

In the process chain in which not every piece of work is elaborated by all the devices of the chain of work, this leads to transport time delays due to a lack of flexibility In other words even if the device is not intended to be used for certain parts of work these pieces of work cannot simply pass the device without wasting time, but have to be elevated all in each case above discontinuity 308 by the support device 304.

Documents DE 100 26 069 A1, DE 201 15 390 U1 and DE 298 07 071 U1 in each case show devices for the elaboration of work pieces in the form of tables in which They can work several pieces of work at the same time. The processing and transportation, however, occur in it flat.

Description of the invention

The task of the invention is to offer a device for the elaboration of a work piece in which  It allows a smaller sizing of the device.

According to the invention this task is solved by the features of claim 1. Other features which extend the invention are included in the claims Dependents

The device for the elaboration of a piece of work that preferably consists at least in part of wood, woody fibers, plastic materials or the like, it comprises a tool for carrying out the elaboration of the workpiece, a transport device with a side of power to feed and an evacuation side for the evacuation of the work piece or the tool, where the workpiece is transported on a transport plane in at minus a transport address, and where the device transport has a buffer zone at least on the side of feed than the one that positions a next piece of work during the elaboration of the work piece. In addition, it is planned a support device for holding the workpiece during the elaboration and for the transport of the work piece of the side supply to the evacuation side, where a plane of work in which the work piece is made is in a different plane to the transport plane. A buffer zone and / or a evacuation zone at least partially overlap with the zone of processing, especially in a projection perpendicular to the plane of transport or to the drawing plane.

Such a configuration of a device makes it possible to substantially reduce the extension of the device of transport and with it the need for space, given that the area of tampon, in which the pieces of work await its elaboration, and the processing area is one on top of the other. For the both the space in the device is used double transport. In addition, there is no danger of a collision of the work pieces during processing, which avoids It ensures a damage of the work pieces and minimizes the scrap In addition, the machine can be decoupled very easily outside of the manufacturing operation and can enable Work pieces that pass without elaboration.

Preferably in this device the tool can reach the drawing plane through the plane Of transport.

This is advantageous especially for a device for elaboration under ground, since the tables to usually work in the transport plane with the area to be elaborated to carefully treat the surface that then It is visible. The work pieces then do not have to be rotated before processing.

The support device holds the piece of I work preferably mechanically and under vacuum. Just one Fixing the workpiece by low pressure is a way of support that especially treats the surface carefully.

Preferably, a system of automatic timing of work steps, so that there is a continuous monitoring of the device. Preferably the support device is arranged above the device transport and above the tool and the tool then It is arranged below the transport device. In a such arrangement the support and the tool are in front, so that the surface to be made is uncovered completely and there is no danger that the support and the tool hamper each other. That is why you can work a tool of any surface extension, since the processing plane is not limited by parts of the device in the lateral extension

In addition, work pieces can be held by gravitational force on the transport device, of so that an expensive transport device can be avoided that You have to fix the work pieces.

In addition, the invention comprises a method for the preparation of a workpiece according to claim eleven.

The advantages of such a procedure match those of the device, where the procedure is especially suitable for workpieces in the form of tables wood, woody fibers, plastic materials and Similar.

Description of the figures

Figure 1 shows a side view of a schematic representation of a preferred embodiment of the invention;

Figure 2 shows an exemplary embodiment of the state of the art;

Figure 3 shows another embodiment of the state of the art

Description of the invention

Preferred embodiments of the invention are described extensively below by making reference to Figure 1.

For the direction of movement of the description below the coordinate system is used Cartesian indicated in the description of the state of the art. The x direction and y direction are in the plane of transport of the transport device, where the x-direction Represents the transport address. The z address is perpendicular to the transport plane. However it is possible to use any other coordinate system while the directions of movement are linearly independent between yes.

With transport plane refers to the respective plane of the direction of transport. In this way you can imagine that the transport address itself initially runs from horizontally, it has an inclination in a following section and then it passes again horizontally, so that Mathematically there are two horizontal parallel planes. The plane of transport itself then comprises the first horizontal plane, the inclined plane and the horizontal second plane in which the piece work is transported or is housed and always found on the transport device.

Construction features

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transporte 6.}

A schematic side view of a device according to the invention is shown in Figure 1. The device 10 is
according to the invention comprises at least one tool 11, a support device 4 and a device

 \ hbox {of
transport 6.} 

Tool 11 in this case can be a simple tool such as a drill, a sander, a saw, a punching machine or also a riveter and a machine to nail However, it can also be another tool. complex or aggregate with, for example, two processing units different for the elaboration followed, like drills in two different sizes or a discretionary combination of Simple tools mentioned above.

Tool 11 in this case may be firmly installed, so that it is stationary and not mobile. Preferably the tool 11, however, is mobile, where also in this case we must distinguish between the different directions of movement

In this way it is possible that the tool 11 it is only mobile in one of the directions x, y or z (see the Figure 1), where the y direction is preferred. In addition, you can also choose a combination of two directions of movement, in where the addresses are chosen preferentially x-y. It is also possible to make the tool mobile in three directions or also set it rotatably, so that up to six degrees of freedom can be achieved (three linear directions of movement, three directions of rotation). In principle, any combination can be achieved Desired movement.

The transport device 6 can be a any transport device, as is usually used in manufacturing facilities As an example, they are mentioned conveyor belts, rollers, sliding surfaces or Similar.

The transport device 6 has a transport direction x in which the work piece advances. This  transport address preferably consists only of an address, however, may alternatively be varied also the direction of transport arriving the work piece, by example, in the x direction and evacuating it in the y direction.

The transport device 6 has a side of power 6A in which the workpiece is fed to processing device 1 and an evacuation side 6C in which the Workpiece 2 is evacuated by device 10. The side of supply 6A and the evacuation side 6C of the device transport 6 do not have to be at the same level of height.

The transport device 6 therefore represents the link point of the processing device with the environment and transport work pieces from a device eventually anterior (not shown) to the device elaboration 10 according to the invention and from this to the device next (not shown) in the process chain. Be this mode the transport device 6 can be extended through several existing machines in the process chain.

However, the transport device 6 it can be provided exclusively in the device 10 according to the invention, so that the entire device 10 can be fitted to Module mode within a discretionary process chain. He feed side 6A and evacuation side 6C then they are the linking points towards the environment.

Then with the transport device 6 refers to the device for transporting work pieces in immediate proximity of the processing device 10, that is the supply side 6A and evacuation side 6C.

The transport device 6 has an area of buffer A in which a workpiece 2 has been deposited that is must be prepared to be received by the support device 4 which outlined below. The transport device too it can be configured in a mobile way to raise or lower the workpieces in the z direction outside the transport plane and in this way pass them to the support device 4.

A processing area B in the device Transportation is not provided in the present invention. So there is also no significant discontinuity 14 of the transport device 6, but only a narrow gap to through which tool 11 elaborates the workpiece 2.

In some cases you can also skip a discontinuity 14 of the tool. For example, in one embodiment  of the transport device 6 as rollers the configuration of the transport device 6 conditioned by construction already can provide enough gaps for processing with the tool 11 through a transport device 6. Other possibility would be to fix the tool 11 on the opposite side of the transport device 6. The discontinuity of the device transport in this case strongly depends on the selection of the tool, however, in any case is less than the length of the work piece and wider than the tool.

In principle it is possible to go through the pieces of work 2, especially work pieces in the form of tables, on the transport device 6 without processing in the processing device

The support 4 is preferably mobile in the transport direction, that is in the x direction. At least his direction of movement presents a component parallel to the transport address The support can also be mobile in several directions of movement, where wings are analogously tool movement directions can be enclosed also up to six degrees of freedom. The tool and the support together they must present at least two directions of movement, preferably the x direction and the address, or better at least three directions of movement, preferably the x, y, y direction z.

Naturally the directions of movement they can also be overdetermined by support 4 and the tool 11, ie both can be mobile, for example, in the x direction in addition to the other addresses of movement.

The combination of movement directions of support 4 and tool 11 is relevant for configuration  constructive in each case. If tool 11 were installed firmly the same support 4, for example, should perform all movements. The tool 11 in the case of a construction of this type, however, has to get into the plane of elaboration, which may mean that then tool 11 You also have to cross the transport plane. Thus you can imagine such a configuration, but it is not preferred. A stationary tool 11 should preferably be configured so that it does not cross the plane of transport.

The support 4 can hold the workpiece 2 mechanically, especially fixed by friction and / or in drag or pneumatically, as for example by An empty space.

The support device 4 is arranged preferred form on the other side of the transport device 6 with respect to the tool 11 and holds the workpiece 2 of such that the side to be elaborated in the best case is totally free. Tool 11 work so to speak preferably through the transport plane in the plane of processing in which the workpiece is held for elaboration. Processing area B is in the plane of elaboration and overlap with buffer zone A and / or zone of evacuation C in a projection perpendicular to the plane of transport or to the elaboration plan. This is only possible since the support device 4 is decoupled from the plane of transport, that is, the support does not have to grab through the transport plane to hold the work piece 2. A work piece 2A positioned in the buffer zone therefore you can overlap with a workpiece 2B to make without danger of colliding with this one. It may also be possible to set the support device 4 next to the transport device 6 of such that the support device 4 does not have to work at through the transport device 6, but passes through one side of East. Then the support device 4 also does not have to be arranged opposite to tool 11, however, still It is decoupled from the transport device.

The constructive arrangement of the device transport 6, support 4 and tool 11 in principle it has to be adjusted by the expert to the circumstances in each case. In this way the tool 11 and the support 4 both can be arranged above or below the device transport 6, which then eventually does not require any discontinuity 8 or they can also be arranged opposite to the transport device 6 with each other.

The preferred embodiment is shown in Figure 1 in which the transport device 6 is provided between tool 11 and support 4. The tool is moves in the y direction and in the z direction, the support during the processing moves only in the x direction, where the support 4 also moves in the z direction when housing the piece of work 2.

Way of operation

A work piece 2A is transported on the side of feeding by the transport device 6 towards the processing device 10. There it is positioned in the area of buffer C, while the current 2B workpiece is still It is under development.

Since the preparation plane preferably is more distanced from the tool than the transport plane Workpiece 2, depending on the difference in distance between the tool and the transport plane or tool and the plane processing, can be rotated and moved discretionally, without However, preferred in any x direction and y direction. One time that the preparation of work piece 2B above is Once the support device is finished, it is no longer busy and grabs the Workpiece 2A positioned in buffer zone A. To do this the support device moves over the piece of work 2 and moves itself in the z direction to accommodate the Workpiece 2 or the transport device can be moved in the buffer zone in the z direction and thus carries the piece of Work in the elaboration plane.

In this case it is necessary to pay attention to the processing plane is outside the transport plane of the supply side 6A and outside the evacuation side 6C of the transport device 6, such that the work piece 2B to be developed and the 2C workpiece positioned in the area of buffer cannot collide. This plane distance from processing and transport plane preferably depends on the work piece, however, can also be a fixed measure and in some cases it can also depend on the kinematics of the elaboration (possible turns). The drawing plane therefore It can also be inclined with respect to the transport plane. In the case of a workpiece in the form of tables, which only elaborates in the three linear directions x, y, z and that presents a thickness of about cm, for example, 2 - 3 cm, the drawing plane should be distanced by the value of this plane thickness from transport.

Once work piece 2 has been carried on the manufacturing plane or by the device support 4 or by the transport device 6 and is held by the support device 4 by mechanical or pneumatic force, the support device 6 moves the workpiece 2 held towards the tool 11.

Preferably the tool is not mounted stationary, but you can move in the direction and and in the z direction, so that the support device only must be mobile in the x direction to offer all addresses Linear independent. Workpiece 2B is now made in all necessary sites while work piece 2A Next is the buffer zone. Can also be it is possible that the previous 2C workpiece is still in the evacuation zone; this piece of work, however, has to be evacuated before leaving the work piece prepared for make it possible to leave the elaborated work piece without colliding. He support device 4 moves after processing by above the evacuation zone C and leave workpiece 2, in where in this case it is also possible that the evacuation zone C It is mobile in the z direction and is responsible for transporting the part of work 2 outside the processing plane towards the plane of transport.

Industrial application

The invention makes it possible to manufacture the machine more Compact for a substantial part. That is why it is shortened substantially the space that is required for this device and additional process steps can be incorporated into the process chain This increases effectiveness or reduces the space requirement and therefore costs.

Claims (11)

1. Device (10) for the preparation of a work piece (2) which preferably consists of at least parts of wood, of woody fibers, of plastic materials or similar, comprising: a tool (11) for the realization of the elaboration of the work piece (2); a transport device (6) with a side of power (6A) for power and an evacuation side (6C) for the evacuation of the work piece (2) towards or from the tool (11), where the work piece (2) is transported in a transport plane that is arranged in a device of transport (6) in at least one transport direction (x), in where the transport device (6) has at least one side supply (6A) a buffer zone (A) in which it is positioned a work piece (2A) following during the elaboration of the work piece (2B); a support device (4) to hold the Workpiece (2) during tooling (11) in an elaboration plan that is in an area of processing and in a different plane from the transport plane and for transporting the workpiece from the side of supply (6A) to the evacuation side (6C), characterized in that the buffer zone (A) and / or an evacuation zone (C) at least partially overlap with the processing area (B), especially in a perpendicular projection with respect to the transport plane or with respect to the manufacturing plane . 2. Device according to claim 1 in the that the tool (11) arrives in the manufacturing plane through of the transport plane. 3. Device according to claim 1 or 2 in the one that the processing direction (x, y, z) of the tool (11) and of the support device (4) are linearly independent, preferably perpendicular to each other. 4. Device according to any one of the previous claims wherein the support device (4) and / or the transport device (6) are mobile in a direction of additional perpendicular movement with respect to the plane of transport. 5. Device according to any one of the previous claims wherein the support device (4) Hold the workpiece (2) mechanically or with a vacuum. 6. Device according to any one of the previous claims wherein the timing system Work steps are done automatically. 7. Device according to any one of the previous claims wherein the support device (14)  it is arranged above the transport device (6) and the tool (11). 8. Device according to any one of the previous claims in which the tool (11) is provided below the transport device (6). 9. Device according to any one of the previous claims wherein the work pieces (11) are held by gravity on the transport device (6). 10. Device according to any one of the previous claims wherein the tool (11) is a drill, a saw or a milling machine. 11. Procedure for the development of a work piece (2) which preferably consists at least in part of wood, of woody fibers, of plastic materials or the like with the following steps: feeding a workpiece (2A) on a transport device (6) towards a transport plane towards a buffer zone (A); transfer of the workpiece to a device of support (4) which is mobile in at least one direction; elaboration of the work piece (2B) by a tool (11) in a processing area (B) in a plane of elaboration that is different from the transport plane and that overlaps with a buffer zone in a perpendicular projection with respect to the processing plan or transport plane; work piece positioning (2B) made on the transport device (6C) in a plane of transport on the evacuation side (C); Y evacuation of the work piece (2C).