FI88194B - ADJUSTMENT OF CONTAINERS WITHOUT CONTAINER FOR WAREHOUSING AND RAMCH CONSTRUCTION - Google Patents

Description

88194

Method and apparatus for continuous fabrication of housing and perimeter structures

The present invention relates to a method according to the preamble of claim 1 for the continuous production of housing and circumferential structures consisting of a plurality of interconnected bodies.

The invention also relates to an apparatus according to the preamble of claim 8 for assembling these structures.

In the manufacture of housing and perimeter structures, such as from a window and door frame, the prior art has first produced batches of the required size by machining them with different machines, after which the pieces have been transferred to intermediate storage. Parts from the warehouses have been picked up on the basis of orders and assembled at the assembly site to form finished frames. These methods have often had to perform length equalization and blank cutting in several stages, and the automation of existing methods has thus been cumbersome.

Also, the known automated processes have not proved to be successful in all respects. As an example of automatic. the production process mentioned is Maschinenfabrik

The DSH 16 line supplied by Gubisch GmbH, in which the workpieces run along paths on which they have to return to the other end for machining. These back-and-forth transfers slow down manufacturing and reduce process capacity.

The object of the invention is to eliminate the drawbacks associated with the prior art and to provide a completely new method for manufacturing housing and circumferential structures, which method makes it possible to automate the manufacturing process.

The invention is based on the premise that each part of the circumference is produced in succession in a continuous, assembly-following order. The inventive idea of the solution according to the invention is then based on combining a few successive functions: The use of a slitting mill and a gluing unit results in a continuous material blank which is cut into pieces of a certain size. With at least a double-blade turning machine, a continuous female-male-female-male joint combination is obtained, in the correct order. If desired, a further profile planing is performed in this order, in which the profile can be changed continuously, with the possibility of planing the parts of each successive perimeter into a different shape. Finally, the desired products are assembled from the pieces, which are fed in the correct assembly order.

More specifically, the method according to the invention is mainly characterized by what is set forth in the characterizing part of claim 1.

The apparatus according to the invention, in turn, is characterized by what is set forth in the characterizing part of claim 8.

According to the invention, the production line is formed by first successively connecting two machining stations called turning machines, the first of which enables the continuous longitudinal gluing of the sawn timber and the second the formation of a continuous joint stapling. The connecting parts to be connected to each other are milled or machined in successive work steps and also move in the conveyor for assembly, so that their order is already automatically the circumferential assembly.

In a preferred embodiment of the invention, the parts are processed in machining units without changing their length orientation. In particular, they are passed through the first and second machining units by means of successive longitudinal and lateral movements, whereby the machining of the parts takes place essentially only during the lateral movements.

Said first processing station is used e.g. one having one fixedly mounted in a cutterhead and 3 38191 in this respect the height adjustable work bench on which the workpieces move to the tooling-DAN status was changed after about half a finger-joint finger way with the body front-end processing to form various finger-joints songs to the front end and the left end, respectively.

As the second machining unit, for example, a device is used which has two fixedly mounted, different machining heads and a fixedly mounted machining table, on which the workpieces move alternately through another machining head, to form different connecting parts in every other workpiece. Alternatively, the second machining unit can be equipped with four different blades, which are different in pairs.

The length profile of the pieces obtained from the second machining unit can be modified in the third machining unit if desired. The workpieces are then moved longitudinally along a continuous path i through this third machining unit, in which the workpieces are machined by means of a series of profiling units adapted to be moved between the free port position and the machining port position.

The machining stations described above and their operation are described in more detail in our parallel patent applications.

The invention provides considerable advantages. Thus, with the solution described above, each perimeter with all its parts is produced automatically without stocking, so that a commercial order consisting of many different profiles and different frames can be produced at the same speed and cost as an equal unitary order of the same product.

According to the present invention, a completely new type of machine is used in the co-operation of the production line, which enables production without continuous storage, which enables continuous and continuous product exchange as described.

4 8 8 1 9 γ

The invention will now be examined in more detail with the aid of the accompanying drawing, in which the basic structure of the apparatus according to the invention is shown as a side view.

According to the numbering of the figure, the production line according to the invention comprises the following devices arranged in series: Timber blank dosing device 1, longitudinal milling machine 2 consisting of a so-called rotary milling machine with one or two blades, straightening planer 5, joint stapling machine 6, which consists of a so-called rotary cutter with two or four blades, and a profile planer 7. The devices are connected to each other by means of conveyors 8.

The operation of the production line is monitored by a control unit (not shown), which e.g. the required lengths of the parts to be machined are calculated on the basis of the dimensions of the structure to be manufactured, eg the size of the frame (height x width). On the basis of this information, the operation of the cut-to-length sawing machine 4 and the splicing machine 6 is controlled.

One of the key devices of the apparatus is a joint stitching machine 6, the general principles of operation of which have been described above and which have been described in more detail in a parallel patent application. It is essential that the orientation of the workpieces does not change during machining, but that the workpieces are transported through the device in longitudinal and lateral movements, whereby machining takes place during lateral movements. The machine may have a single machining head, two parallel machining heads, or four machining heads mounted at the corners of a square. The figure shows the alternative in which there are two machining heads 9 in parallel. The piece entering the joint stapling machine 6 is moved to the side of the machining steel 9, first to the side, then even more to the side to perform the first machining. It is then conveyed forward at least a distance corresponding to its own length until it is moved to the outlet side of the device. The part is caused to move back in the opposite direction to the side, making it machined at one end (leaving end).

The production line according to the invention operates as follows: A continuous blank 12 is first formed from a piece 10 of finite length, which is brought from the warehouse by means of a suitable transfer device 11. This is done by first forming, for example, connecting parts for finger joints. The machining is carried out in a slitting mill 2 by forming a female joint at one end and a male joint at the other end of each piece fed from the dosing device 1, whereby after machining the pieces are glued together in a head-to-tail press. Both connection parts of the extension joint can be manufactured with the machining unit with two or four machining heads described above. However, it is also possible to produce an extension joint in a turning machine 2 with one machining head, so that a phase shift is placed in the processor, which causes the female or male part, respectively, by phasing, preferably changing the height of the support table, the joint thickness.

After the glue press unit 3, according to the set values given by the control unit, the blank is cut into pieces of a certain size, whereby the order of cutting the pieces follows the order of assembly of the final product. So the window. . when making the frame, first the piece corresponding to the lower frame is cut first, then the pieces corresponding to the side frame, the upper frame and finally the piece corresponding to the second side frame. In this case, the "rotation order" of the circumference is thus followed in the cutting. If the perimeter is assembled in some other order, it will of course be followed in the cut.

e 88194

After cutting, a dimensioning straightening planing 5 follows, which removes the deviations of the blank created in the gluing press unit (or the deviations already originally present in the finite blank).

The ends required for assembling the structure are machined at the ends of the fixed parts thus produced, e.g. female-male connecting parts in a pin jointing machine 6. Thanks to the structure and operating principle described above, the order of the parts can be maintained during machining.

After the joints have been formed, the pieces are profile planed, if necessary, to obtain the desired length profiles. The device 7 used as a profile planer has several successive profiling units which can be installed in two positions: the free port position or the machining port position. In the free port position, a free slot is formed, through which the part can pass freely, while in the machining port position, the part is machined with the steel of the respective profiling unit. Only one type of profile can be machined with each profiling unit. Thus, the described device always has several profiling units that are not used for the part to be machined. This results in apparent oversizing and overcapacity for individual pieces. However, these disadvantages are small compared to the advantage of being able to change the profile to be machined very quickly.

Through the profile planer, the pieces move along a linear path formed by successive free and machining soles, whereby their order remains unchanged.

After the profile planer, the desired structures are assembled from the pieces in an assembly unit.

Claims (8)

A method for the continuous production of housing and circumferential structures consisting of a plurality of interconnected parts, characterized by a combination of the following steps: - (12) cut into pieces of a certain size in the order required to assemble the structures, - the pieces are machined in said order in a second machining unit (6) to form the joints required for assembling the structures, they form the desired structures. Method according to Claim 1, characterized in that the machining units (2, 6) are machined without changing their length orientation. Method according to Claims 1 and 2, characterized in that the pieces are passed through the first (2) and second machining units (6) by means of successive longitudinal and lateral movements, the machining of the pieces taking place essentially only during lateral movements. 4. The method according to any of the preceding claims, characterized in that such a first machining unit (2) having one fixedly mounted in a cutterhead and this ratio adjustable height direction of the work bench on which the workpieces are moving, wherein the working machine status was changed by about half sormilii- plant finger sure after machining the front end of the part to form different types of finger joints at the front and leaving ends of the parts, respectively. β 38194 Method according to one of the preceding claims, characterized in that a second machining unit (6) is used, which has two permanently mounted, different machining heads (9) and a fixedly mounted machining table on which the workpieces move alternately via another machining head. to form joints in every other piece. Method according to one of Claims 1 to 4, characterized in that a second machining unit with four permanently mounted machining heads in pairs is used to form different connecting parts at different ends of each part. Method according to one of the preceding claims, characterized in that the pieces coming from the second machining unit (6) are moved longitudinally along a continuous path through the third machining unit (7) and the pieces are machined by means of profiling units arranged in series between, with each profiling unit in the machining port position, only one profile is machined on the pieces passing through the machining station. 7 88194 8. Apparatus for the continuous production of housing and circumferential structures consisting of a plurality of interconnected parts, characterized in that it comprises, in succession and connected to each other by means of transfer devices, a machining unit (2) , - a gluing unit (3) for joining the material blanks together into a continuous material blank (12) by means of finger joints, - a continuous material blank cutting unit (4) - a machining unit (6) female joints can be machined on one piece and male joints on the other, - possibly s of the piece profiling unit (7) and - a piece assembly unit, wherein the apparatus further comprises a control unit connected to the cutting unit (4), by means of which the cutting unit can be controlled so as to cut the blank into pieces of a certain size in the order required for assembling the structures. 10,881 94