SI22245A - Device for manufacturing bonded blocks and press for bonded blocks - Google Patents

Abstract

The subject refers to a device for manufacturing bonded blocks (7) with at least one folding press for bonded blocks (3) with one press frame (31) and one folding frame (32). In the press for bonded blocks (3) a bonded block (7) is produced from block parquet (7') made of pasted wooden lamellas under a certain applied pressure via clamping jaws. Over the press for bonded blocks (3) there is one portal runner (2) located in the horizontal direction by vertically moving lifting handles (21) which place the pasted block parquet (7') into the open press for bonded blocks (3) and after pressing the bonded block (7) remove them from the press, where both the lifting handles (21) as well as the pressure frame (31) are inclined towards the vertical axis under a certain angle (alpha). The invention also refers to the design of the press for bonded blocks (3).

Description

Glue Making Machine and Glue Press

The invention relates to a device for making glues with at least one folding press for gluing with one press frame and one folding frame, in which, by means of pressed jaws, the laminated package of glued wood lamellae is transformed into glued under certain applied pressure, as well as the press for gluing so.

Laminated wood boards are produced by stacking each other and gluing wood lamellae, such as croissants, in special presses. The construction element with a rectangular cross-section is created. This building element, also called glued, can be used as a carrier with very large spacings far beyond the spans of individual timber blades, and can be used as a high-load carrier. The lamellae are first glued on and then, as a rule, manually or with some lifting device, they are inserted into the press for gluing. There, the lamella packages remain under compression pressure for several hours until the glue has solidified.

The prior art knows the various concepts of bonding presses, most of which require manually controlled loading and unloading.

Bonded presses have the property of having 400 mm to hydraulic press jaws up to

800 mm creates pressure of the main press on glued lamellar packages. wood slats up to approx. 120 N / cm ² . At the same time, with several lateral pressure positions, the lamella package aligns laterally. The lamellas are generally set upright with horizontal adhesive joints, alternatively using compression with horizontal pressure alignment of the main press with vertical adhesive joints.

In upright use, the main press of the press can be guided from above to the lamella package or produced from below by simple plunger cylinders, and then the lamella package is supported against one of the transoms above. Stair or multi-stage louvre packages are also possible with the upper power supply, with longer louvers lying below.

Loading and emptying mainly between 18 m and 24 m long presses can be carried out by means of a roller conveyor or. conveyor in the longitudinal direction. However, it has the disadvantage that in this longitudinal transport we need to have the same length before the press or. behind the press for one transport device.

Also known is the treasure chest of the presses, in which complete lamella packages are fed by means of a crane or stacked lamellae individually, which certainly requires a rather expensive mechanic.

In the known presses of the above presses, the main crossbar opens and locks again after filling. The press jaws then squeeze the lamella package from below to the main crossbar.

Folding presses are also known, in which one side, namely the folding frame, can be fully extended by about 90 °. The lamella package is inserted laterally into the press with the help of a crane, the press closes and the blades of the package are connected to each other under pressure of the press.

WO 97/17178 describes a manufacturing device for making a raw profile from rod-shaped or board-shaped lamellae with a compression device that forms a compression region of the lamellae and which extends in the longitudinal direction of the untreated profile of the spaced apart devices. The raw profile is inserted into the compression zone located in a heating device by means of a side and height adjustable feeder. After completion of the pressing process, the lamella stack is transported by means of a transport device. The frame of the press is oriented perpendicularly to the vertical.

WO 96/05036 describes a manufacturing device for making a raw profile from boards in the form of boards with several spaced apart tensioning devices with tensioning jaws and associated tensioning actuators, wherein the tensioning actuators for the tensioning frame and the tensioning frame are independently spaced apart and formed relative to each other as adjustable. A tension frame is provided with a conveyor device extending at least from the compression region to an intermediate bearing and is designed to accommodate a plurality of compression flange forming devices. Even in this case, the compression frame is positioned perpendicular to the vertical.

DE-PS-27 22 453 describes a tensioning device for making wood glued joints, with a transverse pressing device mounted on one of the basic frames and one pressing device perpendicular to the plane of the blades. There are several identical pockets for each other, which are used for picking up one by one wood glued. The clamping means for holding together the lamella package in a jointly pressed state are provided as clamps, the base frame being formed as a kind of tensioning stand equipped to receive one tension pocket. The rails of the press are oriented in the vertical direction.

DE 37 02 6789 Al describes a press with a press frame and one movable press element and one counter element, between which is placed a workpiece intended for processing. For simple and inexpensive manufacturing, the flexible compression element is provided with a pressure medium filled with a pressure medium which rests on the one side of the compression frame and directly or indirectly rests on the workpiece on the other. The compression frame can be positioned at an acute angle to the horizontal.

DE 35 25 121 Al describes a plate press in which, because of the rapid unfolding of the press parts, a frame of the press is provided in which at least two horizontally extending press plates are mounted, at least one of which, by means of one on the press plate of the contact extending body, moves relative to the expansion board. The expansion body consists of several symmetrically centered and individually loaded cushions.

The development of rapid bonding with short curing times and requiring bonded joints to be produced for clients and brokers without being held in storage requires very fast, flexible and automatically-loaded presses.

It is an object of the present invention to make available an adhesive device and press that enables rapid and effective adhesion production, preferably with the possibility of producing differently long and stepped adhesives in a single press of the press.

According to the invention, this task is solved by a device with characteristics according to claim 1 as well as by a gluing press according to claim 20. Preferred design and further development of the invention are described in the sub-claims.

The device according to the invention for making adhesives with at least one collapsible press for gluing with one press frame and one folding frame, in which a glued joint is produced by means of pressed jaws from a package of laminated wood lamellae under the pressed compression pressure, horizontally transportable portal carriage with vertically movable lifting arms mounted above the gluing press, which inserts the glued package of timber blades or the package of lamellar joints into the open press for the glued ones and, after squeezing, the lifting arms as well inclined relative to the vertical by a given angle. The device is therefore intended to be glued to the top by an automatic portal carriage with the help of an automatic portal carriage with a complete, pre-glued, oblique lamella package. Due to the oblique inclination, the glued lamellas stand securely in the lifting arms or. the gates of the portal carriage and cannot overturn. No additional safety devices such as adjustable stands or the like are needed. In this way, it becomes possible for the entire lamella packages to be transported without any expensive alignment device and quickly loaded into a single press. Even there, the lamellar packages remain in a positioned arrangement side by side and do not move, thus precision glues or joints can be made. brackets.

The angle of inclination of the lifting arm or. the frame of the press may be between 5 ° and 45 °, preferably between 10 ° and 35 °, and especially preferably between 12 ° and 25 °. In doing so, it should be as a lifting lever or. lifting arms equal to the angle of the press frame, ensuring that the accuracy of the machine is not compromised.

A further developmental form of the invention envisages the installation of an automatic timber loading machine under the portal carriage. In this loader, the lamellae are stacked one over the other and, at a desired angle, for example at about 15 °, they are positioned obliquely and from there they are taken over by the lifting lever on the portal carriage. The gantry picks up the lamella packages from the loading device or. they get out of the loading machine and transport them to a press that bucks. It is envisaged that the loading machine be installed because of the automatic adhesive lines for gluing the wood slats. This allows the slats to reach the loading gauge directly after the passage of the adhesive line, and from there the lamella package as a rule moves perpendicularly to the direction of flow of the wood slats from the portal carriage to the individual presses for gluing.

For precise positioning of the blades, it is envisaged that the loading machine has a backrest for directing the arriving blades in the transport direction. To the extent that the backrest is automatically adjustable, it is possible to process stepwise and even stepwise lamellae packages automatically and to produce glues from them. The loading machine has a sloping contact surface on which the wooden slats are stacked on top of one another. With the driveway or. by moving the slats towards the backrest and on the sloping contact surface, the produced packages of wood slats are produced. blind men. It is envisaged that the support surface is inclined to the vertical at the same angle as the frame of the press and preferably also the lifting arms.

The glued press can have lateral pressing positions, preferably in some simple or multiple raster of the press frame, which press the wood lamellae against the press frame, thus preventing the movement of individual wood lamellae perpendicular to the direction of the main pressure.

The lateral pressing positions can be loaded via two differentially engaged hydraulic cylinders with some force by pushing the lateral pressing positions against the lamella package of wood lamellae against the frame of the press. In this way, in addition to the inclination of the frame of the press, the precise alignment of the packages of wood lamellae is ensured.

On the frame of the press there may be a sliding bearing and on a folding frame a pressure plate which presses the wood lamellae against each other. The main hydraulic cylinder is mounted to operate the pressure plate on the coupling frame, and the pressure plate can be mounted in the guide of the folding frame. The hydraulic cylinder, the guide and the pressure plate are preferably located in different planes of force application. Thanks to this lateral arrangement of the master hydraulic cylinder, the height of the press is significantly reduced because the master hydraulic cylinder lies beside and not above the blades package.

The hydraulic cylinder is positioned between the pressure plate and the guide on the coupling frame in order to ensure a stable structure, since the laterally mounted hydraulic cylinder and pressure plate do not lie in the same plane of force application.

The design of the device further assumes that the disposal table is located below the portal carriage, which is shaped as a tipping table on which the made glued deposits are deposited. Preferably, this tipping table is inclined at the same angle as the frame of the press. the lifting arms so that the finished glues can be deposited at the same inclination. The tipping table may be followed by further transport by turning the tipping table either in a vertical or horizontal orientation.

A further development of the invention provides that the gluing press, loading gauge, adhesive track and tipping table are located in a common plane, for example at the ground level, while the gantry is positioned above that plane. This brings the advantage of classification, which saves space because no longitudinal transport of the lamella package to the press is required. Above the press, a portal carriage allows loading from above so that the space in front of each individual press or. next to the press can be saved. Together with the placement of the press cylinder next to the pressure plate, the height of the press is limited, which allows the press, loading machine, glue line and tipping table to be installed in the same plane below the portal cart.

In order to obtain the shortest possible transport routes of the portal carriage, the gluing presses, the loading machine and the tipping table are positioned perpendicular to the longitudinal line of spreading the glues one after the other.

The gluing press as described above is also subject to patent application.

Hereinafter, an embodiment of the invention will be described in more detail with the aid of the accompanying drawings. The same markings in the figures indicate the same components. Pictures show:

Fig. 1 is a side-view compression device;

Fig. 2 - An open-sided press attachment in the side-view;

as well as Figure 3 - the glued press according to Figure 2 in the closed state.

Figure 1 shows a device 1 for making glues in two planes. The gantry cart 2 is mounted on the guide line 11 or on the guide rails, which are laid over the stand 10. The gantry car 2 can be carried on the guide line in the horizontal direction, as shown by the double arrow. Lifting levers 21 are mounted on the portal car 2 to receive the fabricated glues 7 or to compress the prepared lamella packages. The lifting arms 21 are positioned at an angle to the vertical in such a way as to ensure a stable bearing of both the glued joints 7 and the lamellae packages 7 'before compression. The lifting arms 21 are motor-driven and transportable, as indicated by the double arrow, substantially in the vertical direction.

Below portal cart 2, there is a plurality of bonded presses 3, the structure of which is shown in conjunction with figures 2 and 3. These bonded presses 3 are formed as collapsible and can be folded from above by means of portal cart 2 and the lifting arm 21. The loading is carried out while the obliquely loaded lamellar packs 7 'lying on the inclined bearing surface 41 are lifted, lifted by the lifting arms 21 and then transported along the rail 11 to the individual intended press for gluing. There, the lamellar package 7 'is placed in an open press for gluing

3, which then closes and locks. The pressure in the press is established through the hydraulic cylinders and maintained for the required time to solidify.

Adhesive lamellae, such as crochet ties, preferably between 18 and 24 m in length, are moved from the adhesive line 5 adjacent to or behind the loading machine 4 to the loading surface 41 of the loading machine.

4. On a loading machine 4, a backrest, preferably configured as an auto-adjustable device, may be provided to direct the overlapping blades in the direction of transport so that any aligned front end or a stepped structure can be realized.

After curing, the resulting glues 7 from the portal car 2 are withdrawn and deposited by the lifting arms 21 from the re-opened press for the glues 3 and deposited on the tipping table 6, which, as shown, is tipped upwards. Thereafter, this tipping table 6 places the lamellar bundle 7 on the conveyor, which automatically transports it to the next processing station.

Due to the direction of travel of the portal car 2 bonded presses 3, the loading machine 4 as well as the tipping table 6, if necessary, also the glue line 5 is possible, very short transport routes of the portal car 2 are also possible. 3 and the other components of device 1 are placed very tightly together, since no transport vehicle runs between the presses 3, the loading machine 4 and the tipping table 6. With the compact installation of the presses 3, the construction of which will be described later, it is possible to limit the total construction height of the device to approx. 6м.

Figure 2 shows the seal press 3 in the open state. The gluing press 3 has a frame of the press 31 which is fixedly installed and has an inclination at an angle α of approximately 15 ° to the vertical. A folding frame 32 is articulated to the frame of the press 31, which can be opened and closed via a hydraulic cylinder 84. With the latch 33 open, which is also operable via a hydraulic cylinder or through some motor drive, the folding frame 32 opens so far that one glued lamella package 7 'of glued lamellae is introduced from the top in an inclined orientation via the lifting arm not shown here in the open press for bonding 3. The inclination of the lifting arm 21 and thus the connecting lamella package 7 corresponds to the inclination of the fixedly mounted frame of the press 31. Lamella package 7 'is deposited on the bearing 37, to which the hydraulic cylinder 31 is actuated and the folding frame 32 is folded in parallel with the fixed frame of the press 31. The latch 33 closes and the pressure plate 34 is substantially parallel to the bearing 37. The pressure plate is activated 34 via a master hydraulic cylinder 81 mounted on a folding frame 32. Pressure the plate 34 is mounted on the guides in such a way as to ensure the precise bearing of the pressure plate 34 and to maintain the parallelism of the pressure plate with the bearing 37.

The master hydraulic cylinder or master pressure cylinder 81 is positioned between the pressure plate 34 and the guides 35 and does not lie in the plane of implementation of power together with the pressure plate 34.

In order to prevent the movement of the wood blades in the bundle 7 'during compression, lateral presses or pressures are provided. the pressure positions 36 to which the hydraulic cylinders 82, 83 force in the direction of the fixed frame of the press. This ensures that a rectangular cross-section of the joint is created 7. Hydraulic cylinders 82, 83 are connected differentially. A hydraulic cylinder 82 is mounted on the upper pressure cylinder 82 and a hydraulic oil force is applied to the piston side and is driven to the lamella package 7 '. Oil extruded from the first side is driven from the first hydraulic cylinder 82 to a lower, towed hydraulic cylinder 83 on the side of the rod. This ensures that both hydraulic cylinders 82, 83 perform exactly the same path independently of the force exerted by moving the lateral pressure positions 36 towards the lamella package 7 'exactly in parallel.

At the same time, the pressure plates 34, several of which may be arranged one after the other along the entire length of the joint, are pressed from above against the lamella package 7 '. As the main hydraulic cylinder 81 is positioned in front of the 7 'lamella package, the construction height of the glued press can be significantly reduced.

In the closed state, as shown in Figure 3, the lamella pack hardens when the pressure is continued. After the lamellar package has hardened, the lateral pressure positions 36 are reversed, the pressure plates or the main pressure plates 34 are lifted, the latching latch 33 is opened and the press is disengaged by means of the hydraulic cylinder 84. The gantry cart 2 is then transported via a hydraulic press 3, takes over the now-hardened lamella package as a finished joint 7 by means of a lifting lever 21, and drives in the direction of the storage table 6.

The gluing press 3 can take very long lamellar packs 7 'and because of the plurality of pressure plates 34 or. the main pressure plates 34, which are arranged with a distance of preferably between 400 mm and 500 mm, may also compress the stepped joints 7 or any stepped arrangement of the lamella package 7 'into the joint 7.

By means of the folding construction of the gluing press 3 and the inclined orientation of the pressure frame 31, it is possible to easily and securely insert into the press without a special support device, stand or clamp of the previously glued lamella package 7 '. The opening angle of the folding frame 32 may remain small because, when loading or after inserting the lamella package 7 'into the glued press 3, no lateral grips (jaws) need to be opened and transported from the glued press 3. Lamellar packs 7 are can be easily loaded into the cradle 37, transporting the portal car in the folding frame 32 away from the facing side of the pressure casing 31 enables the removal of the lifting arms 21 from the press press.

Glue Making Machine and Glue Press

Claims (20)

Patent claims 1. A device for making glued joints with at least one folding press for gluing with one press frame and one folding frame, in which the pressed jaws of laminated wood lamella packages are used to produce glued joints, characterized by the fact that one portal horizontally driven portable cart (2) with vertically movable lift arms (21) mounted above the gluing press (3), which feed the glued lamellas (7) into the open press for gluing (3) and removing them after gluing. , with both the lifting arms (21) and the pressure frame (31) tilted vertically at an angle (a). Device according to claim 1, characterized in that the angle (a) is from 5 ° to 45 °. Device according to claim 1 or 2, characterized in that the angle (a) is from 10 ° to 35 °. Device according to one of the preceding claims, characterized in that the angle (a) is from 12 ° to 25 °. Apparatus according to one of the preceding claims, characterized in that the angle (ot) of the lifting arm (21) is equal to the angle (a) of the pressure frame (31), being (a) 12 ° to 25 °. Device according to one of the preceding claims, characterized by - 15 having one loading machine (4) under the portal carriage (2) for loading wood slats. Apparatus according to claim 6, characterized in that the loading machine (4) is positioned behind the adhesive line (5) for gluing the wood slats. Apparatus according to claim 6 or 7, characterized in that the loading machine (4) has one backrest, especially automatically adjustable, for directing the arriving blades in the direction of transport. Device according to one of Claims 6 to 8, characterized in that the loading machine (4) has a sloping contact surface (41) on which the wooden slats are stacked on top of one another. Apparatus according to claim 9, characterized in that the contact surface (41) is inclined vertically at the same angle (a) as the pressure frame (31) of the press for the glued (3) and the lifting arms (21) of the portal wagon (2) . Apparatus according to one of the preceding claims, characterized in that the gluing press (3) has at least one lateral pressing position (36) which presses the wooden slats against the pressure frame (31). Apparatus according to claim 11, characterized in that two differentially coupled hydraulic cylinders (82, 83) are provided to the lateral pressing positions (36), which press the lateral pressing positions (36) against the pressure frame (31). Apparatus according to one of the preceding claims, characterized in that a single bed (37) and a folding frame (32) are pressed on the pressure frame (31) which presses the wood lamellae against each other. Apparatus according to one of the preceding claims, characterized in that the main hydraulic cylinder (81) is engaged for the operation of the pressure plate (34) on the folding frame (32). Apparatus according to claim 14, characterized in that the pressure plate (34) is mounted in a single guide (35) on the folding frame (32) and the main hydraulic cylinder (81), guide (35) and pressure plate (34) lie at different levels of force implementation. Apparatus according to claim 15, characterized in that the main hydraulic cylinder (81) is located between the pressure plate (34) and the guide (35), which is formed as a sliding guide or a roller guide. Device according to one of the preceding claims, characterized in that the storage table (6), which is shaped as a tipping table, is located below the portal trolley (2). Apparatus according to claim 17, characterized in that the gluing press (3), the loading machine (4), the adhesive track (5) and the tipping table (6) are all located on one common plane. Apparatus according to claim 18, characterized in that the gluing press (3), the loading machine (4) and the tipping table (6) are arranged one after the other perpendicular to the line of longitudinal extension of the adhesive. 20. Glue press (3) according to one of the preceding claims.