DE9201492U1 - Device for diagonal gluing of short parts - Google Patents

Description

Hans-Peter Fickler
Am Herrenbühl 5
8963 Waltenhofen

—«+i-d device for diagonal gluing of

Short parts.

The invention relates to a gluing press for the diagonal gluing of short parts.

Gluing right-angled parts is now possible using a variety of presses. In principle, pressure is built up from one side and absorbed by the counter bearing. This can be done from above or from the side.

In the case of diagonal gluing with fixed parallel guides, the press pressure would increase with each additional part by the amount of the frictional force due to the inclination and after just a few parts would reach several times the joint pressure required for gluing until the wood would ultimately become deformed.

The problem is solved by the measures described in claims 1 to 3.

The advantages achieved with the invention are a pressure that builds up evenly over the entire length of the joint, which acts on each individual part joint via the two opposite corners of the parts and ensures that they are glued together precisely and without gaps. Small tolerance deviations of the parts cut to a uniform length can also be compensated.

After the glue has set for the first time, the pressure can be removed very quickly by completely venting the air, as the adhesive force in the glue joint counteracts any gaping due to the precise fit of the parts.

Additional features of the invention emerge from the further claims and the following description of the embodiment.

The subject matter of the invention is explained in more detail with reference to the accompanying drawing.

In this show:

Fig. 1 is a perspective view of the entire invention with the inserted short parts.

Fig. 2 is a sectional view on an enlarged scale transverse to the longitudinal axis of the machine.

The machine is fed with the short parts (1) when the counter support (8) is open. These short parts, also called short friezes, are waste products that arise during the manufacture of furniture frames and the like. Precisely cut and glued on the machine described, these short friezes are then trimmed into raw slats. These can then be processed into solid panels with an interesting new decor using conventional gluing methods.

Starting at the fixed stop (2), the short parts (1) coated with glue are placed one after the other, depending on the desired number, diagonally on the two support strips (3,4). Then the movable counter stop (5) is moved to the last part using the handwheel (34) on the spindle (9) and slightly pre-tensioned.

Now the counter support (8) is folded down to align the parts neatly and flat on the support strips. Then the two support rails (6) and (7) are moved pneumatically to the entire assembly using the control buttons (30) and (31). The pressure that builds up can be varied using the control lever (33) through the adjustable throttle valve (32) to achieve the desired joint pressure for gluing. To enable even more precise contact with the two stops (2,5), which are usually beveled at 45°, the pressure in the pressure hoses (15) and (16) is briefly reduced and at the same time the entire assembly is briefly re-tightened using the handwheel (34). The counter support (8) is briefly relieved to eliminate the frictional force when re-tightening.

Now the two support rails (6,7) are finally moved towards each other with the necessary operating pressure and are kept in this state until the first setting of the glue in the joints has taken place.

This is the case after just 30 to 45 minutes when using conventional types of glue, such as waterproof or water-resistant glue.

The movable counter stop is turned back and with a short tap on the operating button (30) the entire assembly is released from the support strips glued together with glue and the counter support. The counter support can then be swung away for good and the stack, now glued together to form the raw lamella, can be removed and stored for complete hardening, which takes around 24 hours.

After the receiving elements have been cleaned of any glue residue, the new work process begins. The arrangement of a second system is advantageous here, since a second machine can be fed while the first bandage is setting, thus ensuring efficient utilization of the operator.

Claims (5)

Hans-Peter Fickler Am Herrenbühl 5 Waltenhofen Protection claims 1. Device for diagonally gluing short parts, characterized in that the support rails (6, 7) are arranged elastically displaceably on the support profiles (10) and (11) via the welded guide webs (12), the compression springs (13) and the cross webs (14), and a flexible, high-strength fabric hose (15) or (16) is inserted between them over the entire length 1, which, when filled with air, pushes the support rail away from the support profile against the spring pressure and thus presses the short parts together without any gaps. 2. Device according to claim 1 characterized in that 2 support strips (3) and (4) are attached to the central beam (17) and the support profiles (10, 11) with the welded studs (22) and clamping nuts (23) are freely positioned and horizontally adjustable in the holders (20) and (21), which are connected to the central beam (17) via the connecting brackets (18) and (19). 3. Device according to claim 1 and 2, characterized in that a fixed beveled stop (2) is located at one end of the support strips (3, 4) and on the opposite side a similarly beveled counter stop (5) is movably arranged on the guide elements (25) by means of a spindle (9). 4. Device according to claims 1 to 3, characterized in that a pivotable counter support (8), which is rotatably mounted on the vertically extended connecting brackets (19) by means of screw bolts (26), presses vertically on the short parts (1) to be glued in the closed state and is held in a self-locking manner in the open state by the adjustable stop (27) and the spring with its axis behind the pivot point. 5. Device according to claim 1 characterized in that the flexible fabric hoses (15) and (16) are controlled independently of one another by the two 2/2-way valves (28) and (29) by means of the control buttons (30) and (31) and are vented via the adjustable throttle valve (32) with the control lever (33) so that a variable internal hose pressure can be set.