EP0744258B1 - Pressure beam for frame presses and a frame press - Google Patents

Abstract

The pressure beam (5) has two parallel profiles (11,12), located at a distance to each other. The profiles are rigidly connected via several evenly distributed studs (13), which extend at right angles to the profiles. The studs are offset to the back relative to a support surface of the profiles. The studs have cylindrical sleeve sections. Fastening elements positioned in corresponding bores in the profiles, project through the sleeve sections.

Description

The invention relates to a pressure beam for a frame press, which can be attached to cross members of a frame of the frame press is and for holding at least one press cylinder and a corresponding abutment with several lined up in the longitudinal direction of the pressure beam Recording areas is provided, as well as a frame press.

Such a pressure beam and an associated frame press are known (prospectus of Reinhold Hess GmbH & Co. KG for KP 2000, printed note KP 4.93H3). The pressure bars of this frame press have a profile with rows of holes is, in which the press cylinder and associated abutment of the Pressure bar for adjustment and adaptation to each press frame. Both the Bracket of the press cylinder as well as the bracket of the abutment a locking pin on the corresponding hole pattern the row of holes in each pressure beam. There is a row of holes on the back for the abutment of the pressure bar, a corresponding one for the press cylinder Row of holes provided on the front of the pressure beam.

The object of the invention is a pressure bar and a To create frame press of the type mentioned, whose Stability against known pressure beams and frame presses is increased, and which ensure simplified production.

This task is solved for the pressure beam in that the pressure bar two parallel and spaced apart Has profiles that consist of several, over the length the profiles distributed and arranged transversely to the profiles aligned stud bolts are rigidly connected. in the Contrary to the prior art, in which the pressure beam a square hollow profile, are according to the invention in simple two profiles with web bolts connected, which despite the use of simple profiles high stability of the pressure beam due to the and rung-like assembly of profiles and Bridge bolt is created. By the solution according to the invention it is possible to manufacture them more easily and cost-effectively Use profiles, especially open profiles, because the Contrary to the state of the art, stability does not already exist a single profile, but by merging two Profiles with the interposition of web bolts is generated. Due to the ladder-like composition of the pressure bar, i.e. by arranging the two profiles at a distance from each other and by the cross connection by means of the web bolts between the two profiles already similar to the gaps between ladder rungs created receiving areas that corresponding to the rows of holes in known pressure bars for mounting of press cylinders and abutments can serve. On additional work step, as he does in the prior art it is therefore not necessary to insert the row of holes in the invention, since the receiving areas already with the Merging the profiles can be created. In these recording areas can the brackets of the press cylinder and Abutments can be easily hung.

In an embodiment of the invention, the web bolts are one The contact surface of the profiles is offset to the rear. This avoids a disadvantage in the prior art, in which the rows of holes in the pressure beams at least partially on the front and thus in the area of the contact surface Pressure bars are provided. These perforated strips in the area of Support surface for the glued and pressed edges and joints of frames in the prior art by the Glue the escaping glue during the pressing process. By the displacement of the web bolts to the rear becomes one Avoiding sticking.

In a further embodiment of the invention, the web bolts cylindrical sleeve or pipe parts, through the fasteners protrude through the corresponding holes the profiles are attached. The sleeve or pipe parts in this embodiment, the web bolts serve as spacers between the two profiles that are the even and ensure parallel distance between the profiles. Of course, all sleeve or tube parts are with the provided the same dimensions. In all of the invention In this way, the stud bolts have a double function, by acting as both spacers and fasteners serve between the profiles.

In a further embodiment of the invention, the profiles are as U-profiles formed that are symmetrical to a central longitudinal plane of the pressure beam are arranged that their U-legs - each aligned with each other - to opposite Project sides outwards. Through this configuration an extremely stable pressure beam is created, which with simple and inexpensive to produce profiles in shape the U-profiles get by.

For the frame press, the task is solved in that the Pressure bars are designed according to the invention. Due to the The frame press is also an advantage of the pressure beam according to the invention easier and cheaper to manufacture and exhibits increased stability compared to known frame presses on. By forming the receiving areas as gaps between the rung-like stud bolts too the holding power of the brackets improved because of a larger one Recording space is available.

In the design of the frame press, each press cylinder and provide each abutment with a bracket that in each case at least one adapted to the dimensions of the web bolts Have a hanging nose. This makes it possible to Press cylinder and the abutment in a simple way by hand hang in the appropriate position in the pressure beam. Both the holder of the press cylinder and the holders the abutments have support surfaces that are in defined positions on the contact surface of the pressure beam support in order to apply a defined force when pressing to achieve the frame. Here is the width of the hooks adapted to the outer contour and the length of the stud bolts. This will be in the abutment or the press cylinder and thus forces introduced into the hook-in lugs distributed over the largest area possible and on the stud bolts transfer. This results in a well distributed Force transmission in the pressure beam and thus high stability for the holders of press cylinders and abutments. In the prior art, this was not the case because the Seat the locking bolts in a corresponding hole in the row of holes an essentially punctiform introduction of force on the Perforated edge was transmitted, which under unfavorable circumstances could lead to an expansion in the form of an elongated hole.

In a further embodiment of the invention, the holder is each Press cylinder at a distance from the hooking nose with a Provide locking device, which is on an associated web bolt supports. As a result, the press cylinder on the pressure beam additionally secured, making it even in the unloaded Condition is reliably held on the pressure beam.

In a further embodiment of the invention, the locking device adjustable. This is the locking force of the locking device adjustable as required.

Fig. 1

zeigt eine Frontansicht einer Ausführungsform einer erfindungsgemäßen Rahmenpresse, die mit drei Druckbalken und einer Quer- und Rahmenpreßeinrichtung versehen ist,

Fig. 2

eine Draufsicht auf die Rahmenpresse nach Fig. 1 in Richtung des Pfeiles II in Fig. 1,

Fig. 3

eine Seitenansicht der Rahmenpresse nach Fig. 1 in Richtung des Pfeiles III in Fig. 1,

Fig. 4

in vergrößerter Darstellung eine Frontansicht eines Druckbalkens für die Rahmenpresse nach den Fig. 1 bis 3,

Fig. 5

in weiter vergrößerter Darstellung eine Profilansicht des an der Rahmenpresse angeordneten Druckbalkens im Bereich eines an dem Druckbalken gehaltenen Preßzylinders,

Fig. 6

in ebenfalls vergrößerter Darstellung eine Seitenansicht eines an dem Druckbalken gehaltenen Preßzylinders,

Fig. 7

in ebenfalls vergrößerter Darstellung eine Seitenansicht eines in den Druckbalken eingehängten Widerlagers, und

Fig. 8

den Druckbalken nach den Fig. 6 und 7 in seinem oberen und in seinem unteren Bereich.

Further advantages and features of the invention emerge from the subclaims. A preferred exemplary embodiment of the invention is illustrated and described below with reference to the drawings.

Fig. 1

shows a front view of an embodiment of a frame press according to the invention, which is provided with three pressure beams and a cross and frame press device,

Fig. 2

2 shows a plan view of the frame press according to FIG. 1 in the direction of arrow II in FIG. 1,

Fig. 3

2 in the direction of arrow III in FIG. 1,

Fig. 4

an enlarged view of a front view of a pressure bar for the frame press according to FIGS. 1 to 3,

Fig. 5

in a further enlarged view, a profile view of the pressure bar arranged on the frame press in the region of a press cylinder held on the pressure bar,

Fig. 6

also an enlarged side view of a press cylinder held on the pressure beam,

Fig. 7

in a likewise enlarged representation a side view of an abutment suspended in the pressure beam, and

Fig. 8

6 and 7 in its upper and in its lower area.

A frame press that also works as an edge and joint gluing press 1 to 3 has one Support frame (1) on both sides by one Stand (2) is formed. As can be seen from Fig. 3, the stands (2) have a foot from which the actual one Stand bracket at a certain angle to the vertical protrudes inclined upwards. Part of the support frame (1) are also two cross beams (3, 4), which are horizontal between extend the two stands (2) and attached to them are. The upper cross member (3) has an upright orientation Square hollow profile, the lower cross member (4) accordingly flat square hollow profile. Perpendicular three pressure bars run to the two cross beams (3, 4) (5), each horizontally displaceable by means of a carriage (6) are held on the upper cross member (3). Moreover the frame press according to FIGS. 1 to 3 has one per se known cross and frame press device (7). On the in 1 left stand (2) is a hydraulic unit (8) attached.

The hydraulic unit (8) supplies three press cylinders (9) that are each assigned to one of the pressure bars (5). In the area An underside of the pressure beam (5) is each press cylinder (9) assigned an abutment (10). Between the abutments (10) and the press cylinder (9) becomes a workpiece to be pressed, for example a window frame, inserted and pressed.

All three pressure bars (5) including the respectively assigned Press cylinder (9) and abutment (10) and the carriage (6) are identical, so that the following is an example one of these pressure bars (5) with reference to FIGS. 4 to 8 is described in more detail. The pressure bar (5) settles out two U-profiles (11 and 12) together, the identical dimensions have and so parallel and symmetrical to each other are arranged that their U-legs (22 and 23) each aligned with each other on opposite sides to the outside protrude (Fig. 5). The two parallel and at a distance from each other arranged U-profiles (11, 12) are along their length connected to each other by a series of web bolts (13), the web bolts (13) in a lower half of the pressure beam (5) (Fig. 1) in a tight, constant grid arranged one behind the other in the longitudinal direction of the pressure beam (5) are. In the area of the upper half of the pressure beam (5) are the web bolts (13) in pairs with the distance the locking of the web bolts (13) of the lower half arranged, the four pairs of web bolts (13) the upper Half relative to each other, however, are larger, more even Spaced from each other. All stud bolts (13) are identical and have a stable sleeve part (17) on (Fig. 5), which acts as a spacer between the U-profiles (11, 12) is used. According to the number of stud bolts (13) are in the base plates of the two U-profiles (11, 12) rows of holes arranged by the fasteners, preferably in the form of screw-nut connections be passed through. The outside diameter of the fasteners is so on the inner diameter of the sleeve parts (17) the web bolt (13) adapted that the fasteners can be pushed through the sleeve parts (17), without, however, the sleeve parts (17) with greater play sit on these. The fastener screws are used to connect the U-profiles (11, 12) with each other through the holes in the rows of holes in the U-profiles (11, 12) and through the corresponding sleeve parts (17) coaxially pushed through and on the opposite of the screw head Side tightened by an appropriate nut. Thereby is easy with simple assembly steps and inexpensive manufactured elements a stable pressure beam created.

Each pressure bar (5) is in a known manner on the associated carriage (6) attached to the upper cross member (3) is performed. Locking the carriage (6) and thus the pressure bar when moving horizontally along the cross member (3) takes place in a manner known per se through a perforated grid system in the cross member (3), in the engage the corresponding locking bolts of the carriage (6). The Diameter of the sleeve parts (17) is significantly less than the depth of the U-profiles (11, 12) so that the sleeve parts (17) and thus also the web bolts (13) opposite the support surface of the pressure bar (5) for corresponding workpieces between the U-profiles (11, 12) are moved backwards are. The two U-profiles are through the web bolts (13) (11, 12) connected like a ladder, the web bolts form the associated ladder rungs. Between Adjacent web bolts (13) remain gaps that in simple way as receiving areas for receiving hooked in Press cylinders (9) or abutments (10) are used.

Depending on the workpiece to be pressed, there must be pressure bars on each (5) namely the press cylinder (9) and the associated abutment (10) can be positioned accordingly. For easy Handling must therefore both the press cylinder (9) and the abutments (10) on the respective pressure beam (5) in simple Can be attached and removed by hand. In the illustrated embodiment according to FIG. 1 to 7, the press cylinder (9) and the abutment (10) advantageously in a simple manner between the U-profiles (11, 12) hooked in, being attached to the respective web bolts Support (13). For this purpose, each press cylinder (9) has a holder (16, 19, 20) in which the actual hydraulic cylinder (14) is held. For easy handling of the press cylinder (9) the bracket (16, 19, 20) is also with a handle (15) which protrudes forward and after is bent at the top (Fig. 6). The holder (16, 19, 20) has a support plate (16), which is in the lower region of the Press cylinder (9) on the contact surface of the pressure beam (5) and thus on the contact surface of the outer sides of the U-legs (22, 23) of the two U-profiles (11, 12) is supported. There is also a securing part at the upper end of the press cylinder (9) (20) the bracket with a support surface (on best recognizable in Fig. 4), which is from the outside on the support surface of the pressure beam (5). From the support plate (16) the holder of the press cylinder (9) protrudes from a suspension bridge (19) between the two U-profiles (11, 12) towards the inside from which is designed as a square and the width of which Distance between the two U-profiles (11, 12) corresponds to each other. The suspension web (19) is therefore almost free of play between the two U-profiles (11, 12) can be inserted. The suspension bridge (19) has a nose-shaped hanging section at its free end which has an arcuate contour. The The hanging section is on the outside diameter of the web bolts (13) adapted that it surrounds the web bolt (13) over a large area (Fig. 6).

At its upper end, the press cylinder (9) has the securing part (20) on, the free end as a safety hook also protrudes between the two U-profiles (11, 12). The securing hook of the securing part (20) is also as Square and has one of the suspension web (19) corresponding width. At the free end of the safety hook the securing part (20) is a resilient ball screw (21) is provided, which serves as a locking element and the associated Engages behind the stud bolt (13). This ball screw (21) is adjustable so that tolerances are balanced and a suitable one Detent force can be adjusted. To assemble the Press cylinder (9) is easily on the pressure beam (5) brought up and with the suspension bridge (19) Bracket between the U-profiles (11, 12) of the pressure beam (5) inserted. Now the press cylinder (9) is up moved until the suspension web (19) on a corresponding Web bolt (13) comes to rest. Then the press cylinder (9) using the handle (15) also in the area the securing part (20) is pivoted towards the pressure beam (5), whereby the securing part (20) between the U-profiles (11, 12) engages and by slight pressure on the Handle (15) the ball screw (21) behind the corresponding The stud bolt (13) engages. Because the ball screw (21) is resilient is stored, the press cylinder (9) is in reverse Order can be released from the pressure bar (5) by first by pulling the handle (15) accordingly the catch in the area of the ball screw (21) is released and then the press cylinder (9) is removed downwards, whereby the suspension web (19) extends from the web bolt (13) unhooks.

Similarly, each abutment (10) (Fig. 7) is between the U-profiles (11, 12) of the pressure beam (5) can be attached. For this purpose, the abutment (10) has a support bracket, the Support plate (25) on the outside on the support surface of the pressure beam (5) supports. Screwed to this support plate (25) is a hook (24, 26), which has a wide web area (26) and a hanging nose (24). Both the dock area (26) as well as the hanging nose (24) are in their Width to the distance between the two U-profiles (11, 12) adjusted so that there is almost no play between the U-profiles (11, 12) can be inserted. The hanging nose (24) is adapted to the web bolt (13) in such a way that it supports the web bolt (13) encloses over half of its circumference. The abutment (10) is therefore between the U-profiles (11, 12) can be inserted and at the level of a corresponding one Bridge pin (13) can be attached. The defined position the abutment (10) is pulled down by the Support plate (25) secured at right angles to the pressing surface the abutment (10) is aligned. The hanging and Support functions correspond to the abutment (10) and with the press cylinder (9) in its basic operating principle.

Claims (8)

1. Compression bar for a frame press, which can be fixed to transverse beams of a support frame of the frame press and is provided with a plurality of seat regions arranged in a row longitudinally relative to the compression bar for the mounting of at least one pressure cylinder and one corresponding abutment, characterized in that the compression bar (5) comprises two parallel and spaced-apart profiled sections (11, 12) which are connected to one another rigidly by means of a plurality of cross-pins (13) distributed along the length of the profiled sections (11, 12) and arranged transversely relative to the profiled sections (11, 12).
2. Compression bar according to Claim 1, characterized in that the cross-pins (13) are offset rearwardly relative to a bearing surface of the profiled sections (11, 12).
3. Compression bar according to Claim 2, characterized in that the cross-pins (13) comprise cylindrical sleeve or tube portions (17) through which fixing elements (18), which are fixed in corresponding holes of the profiled sections (11, 12), extend.
4. Compression bar according to any one of the preceding claims, characterized in that the profiled sections are formed as U-shaped sections (11, 12) which are arranged symmetrically with respect to a longitudinal median plane in a manner such that the respective limbs (22, 23) of the U-shaped sections project outwardly - in alignment with one another - on opposite sides.
5. Frame press with a supporting frame comprising at least two transverse beams, and with at least two compression bars which extend at right angles to the transverse beams and on which at least one pressure cylinder and one corresponding abutment are supported releasably, characterized in that the compression bars (5) are formed in accordance with one of Claims 1 to 4.
6. Frame press according to Claim 5, characterized in that each pressure cylinder (9) and each abutment (10) is provided with a respective mounting (16, 19, 20,; 24, 25, 26) which comprises at least one respective securing projection (19, 24) fitting the dimensions of the cross-pins (13).
7. Frame press according to Claim 6, characterized in that the mounting (16, 19, 20) of each pressure cylinder (9) is provided with a snap-in retaining device (20, 21) spaced from the securing projection and supported on a corresponding cross-pin (13).
8. Frame press according to Claim 7, characterized in that the snap-in retaining device (21) is arranged in an adjustable manner.

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