CN1045731C

CN1045731C - Plate-bending apparatus

Info

Publication number: CN1045731C
Application number: CN92101602A
Authority: CN
Inventors: O·舒伯特
Original assignee: LIFT VERKAUFSGERAETE-GESELLSCHAFT
Current assignee: LIFT VERKAUFSGERAETE-GESELLSCHAFT
Priority date: 1991-03-14
Filing date: 1992-03-13
Publication date: 1999-10-20
Anticipated expiration: 2007-03-13
Also published as: CA2105587A1; SK98193A3; DE59200920D1; SK279575B6; EP0575393B1; EP0575393A1; BR9205777A; CZ186093A3; WO1992016319A1; AU1349192A; CZ283115B6; HUT64492A; ES2065177T3; CN1064632A; JPH06505677A; AR246448A1; JP2672402B2; ATE115014T1; DK0575393T3; HU9302585D0

Abstract

The description relates to a sheet-metal bending device (1) with two bending punches (19, 20) interconnected so as to pivot which are arranged side by side and at least one of which is pivotably arranged and coupled to a pivot drive (24) and with a counter punch (10) opposite the bending punches (19, 20) and arranged to be linearly movable between a working position on the sheet metal (18) and a withdrawn position, about which the sheet metal (18) is bent in the working position, whereby the two bending punches (19, 20) are directly secured together via a hinged joint in the working region along their edges which face each other in the inoperative position.

Description

Plate-bending apparatus

The present invention relates to a kind of plate-bending apparatus, it has the crease die that two relative swing types link together, this crease die is for being set up in parallel, and on resting position, determine the sheet material placed side with the sheet material contact zone, have at least in this crease die one be set as can swing and be connected with swing mechanism, also have one and be set as between the operating position of sheet material and home position and can do straight-line, as to be positioned at crease die opposite roof pressure mould, thus on the operating position bending sheets.

In US Patent specification US-A-3282076, the plate-bending apparatus of introducing is the swing type squeezer, sheet material to be curved wherein is clamped in a fixing maxillary plate and one between the compressed acia on its opposite, and finish bending work by a bottom swing bending jaw, two bottom crease die of described device can make sheet material to be curved can center on a top roof pressure mould bending that is positioned at crease die opposite, bottom along the trunnion axis backswing.Wherein the swinging mounting of two bottom crease die is positioned at the outside, two ends of plate-bending apparatus, and the working cylinder as the swing transmission also is housed in this end.The shortcoming of this device at first is, crease die must be done very heavyly, and particularly when machine-wide was big, (as 2 meters or 3 meters) more wanted like this.The machine mesozone of even now can not bend accurately to sheet material, causes the mesozone of curved plate well usually also to want open to the outside world than both sides, and promptly from vertically looking of bending, curved good sheet material is the convex that arches upward.Because the structure of crease die will be done very heavyly, so machine-wide also has been subjected to the restriction of necessary quality, so machine-wide is very difficult above 3 meters, otherwise can the undue total quality that increases device.The quality of squeezer can reach 15 to 20 tons, even bigger.

The objective of the invention is, a kind of bending device of eliminating above-mentioned defective is provided, this device makes bent plate can form sharp crimp, and energy consumption is less relatively, can also go out various section configurations by bending process repeatedly, and its structure is simple as far as possible, and particularly mould and frame are lighter and handier than conventional device, thus the quality of alleviator greatly.

For this reason, the invention provides a kind of plate-bending apparatus, it has 3 moulds, i.e. two adjacent arrangements and hinged crease die, they determine the sheet material placed side with the sheet material contact zone on resting position, and one can be done straight-line between operating position on the sheet material and home position, be positioned at the roof pressure mould on crease die opposite, two punch die pivotal mounting wherein, and respectively be connected in swing mechanism, sheet material is by means of rotating at least one crease die, on the operating position, bent around the roof pressure mould, it is characterized in that by a hinge fitting that is offset to the plate placed side, two crease die are along its edge that faces with each other on resting position, directly interconnect at the width range of squeezer, are provided with a die in the sheet material contact zone of crease die in each crease die between the hinge connector; The mould section that the crease die setting can be rolled over, they are along the adjacent arrangement of width of squeezer, and this mould section connects in pairs through the hinge fitting, and the hinge connector of crease die is made of the right hinge connector of all mould sections.

In plate-bending apparatus of the present invention, two crease die thereby link together by hinge in the workspace.In the bent plate process, fetch the transmission of realizable force by this hinge, the part of its horizontal component of power on the hinge that acts on when making bent plate at least obtains balance, and importantly directly obtain balance in the workspace, thereby heavy swinging mounting no longer need be set in the end of crease die, and the structure of crease die itself does not need yet very heavy.Test shows, compares with the squeezer that for example is 15 tons of weights, and under same bent plate ability, only about 2 tons of the gross mass of plate-bending apparatus of the present invention promptly can reduce to 1/5th to 1/10th of the former quality.

It seems by the quality of making great efforts the minimizing device, can adopt a kind of very favourable structure, promptly when two crease die can separate swing, preferably the swing mechanism along the width distribution of plate-bending apparatus is connected on the crease die, and the roof pressure mould is then only done rectilinear motion.

In repeatedly bending, when processing second or the 3rd seamed edge on sheet material to be curved, the part of horn shape and the phenomenon that the roof pressure mould is collided (so-called " collision " situation) can take place to have curved.For avoiding this phenomenon to occur, for example can allow the roof pressure mould avoid by swing.But this just is necessary for the roof pressure mould swinging mounting is set, and swinging mounting and roof pressure calligraphy or painting model body driven dimension correspondingly all, the reaction force that produces when bearing bent plate.But people pursued but just the roof pressure mould only do rectilinear motion, although do like this can not for right and wrong, but should preferentially adopt, the possibility of avoiding in order in above-mentioned " collision " situation, to allow sheet material to be curved have, perhaps after colliding, can continue bent plate with the roof pressure mould, the invention provides a kind of favourable scheme, be two crease die separate swing mechanism is set.Can accomplish that by means of swing mechanism independently a crease die simply just stops under the case of collision occurring, thereby the edges of boards with curved good seamed edge that are positioned at this crease die one side are fixed, another crease die then continues swing, continues bending sheets.In this asymmetric working method, the horizontal component that most bending force is produced obtains balance, and is so crease die is stressed very little, also less relatively from the component that crease die passes on the frame.

The version of equivalence on a kind of kinematics, the standing part structure of its plate-bending apparatus (needs to maintain static) structure that preferably adopts following feature in bending as one section sheet material under specific situation, promptly a crease die fixedly installs, another crease die and the supporting of roof pressure mould swing type, and the angular speed of the crease die that can swing motion is the twice of roof pressure mould.

Generally speaking, therefore above-mentioned bent plate mechanism is applicable to rapid especially bent plate work owing to have hinge engaging structure, and very advantageously, the roof pressure mould is recalled on sheet material in the final stage of bent plate, to realize amounting to of sheet material.

In order to protect sheet material in bent plate processing, not to be damaged; and reach best power conversion at the very start in bending work; can adopt a kind of favourable structure that is proved to be; promptly in for example curved projection of each crease die on the crease die or flatten the sheet material contact zone in cross section and the hinge of hinge shape is provided with a groove between connecting, and hinge axis a little setting of staggering apart from the sheet material placed side.

In order to realize reconfiguring of plate-bending apparatus rapidly, with the need of suitable various working width, can adopt another kind of favourable structure, mould section that several are arranged in juxtaposition along the plate-bending apparatus width, that can take off promptly is set on crease die.In described plate-bending apparatus, because the hinge of crease die of the present invention connects,, the mould section is connected with simple connector so can adopt a kind of favourable structure, connect as tongue-and-groove, be fixed on and be positioned at plaing on the crease die of die holder effect usually of sheet material contact zone opposite side.

In all said structures, a kind of favourable version is characterized in that the mould section is hinged together in couples, connects and composes the hinge connection of crease die by the hinge of all paired mould sections.For the ease of assembling and replacing, particularly advantageous is to make paired mould section have the independent hinge axis equal with the mould segment length simultaneously.For the mould section that is arranged side by side is interconnected, the hinge axis of mould section is all stretched in the hinge earrings of continuous paired mould section from a side.When mold exchange more, because all hinge axis all are arranged in the adjacent segmentation coaxial line, therefore for example can release hinge axis vertically together, till disengaging between the segmentation.

On the other hand, for the cause of stability, a shared continuous hinge axle can be set also, this passes all mould sections.

Consider the wearing and tearing that produce in the running, should change wear-out part by rights, be preferably in crease die or mould section for this reason and be provided with the releasable filler rod that constitutes the sheet material contact zone.Filler rod is fixed by bolts on crease die or the mould section.

A kind ofly be proved to be highly beneficial, effective drive unit and be, (respectively) is provided with an arc-shaped rack as swing mechanism, and this tooth bar and affiliated crease die are fixed together, and are driven by a gear that is contained on the axle.Another favourable structure is, tooth bar is supported on the circular arc supporting base that is fixed on the bearing block on the frame, and this supporting base for example is a support slot.

Then can simultaneously each crease die be bearing on the frame of plate-bending apparatus by tooth bar in this way.Also have a kind of favourable structure to be, rotate, two independently motor are set in order to drive pairing two axles of crease die.

The present invention will be further described by means of the most preferred embodiment shown in the accompanying drawing below, but the present invention is not limited to these embodiment.

Overall perspective view when Fig. 1 represents that plate-bending apparatus of the present invention is in resting position;

Fig. 2 represents a fragmentary, perspective view of this plate-bending apparatus, comprises the crease die bigger engineer's scale of this figure compared to Figure 1 that is in the operating position;

Fig. 3 represents the critical piece schematic side view by Fig. 1 and Fig. 2 plate-bending apparatus;

Fig. 4 represents to be used for by Fig. 1 to Fig. 3 plate-bending apparatus the exploded view of the paired door assembly with hinge and glass in right hand and left mould section of crease die;

Fig. 5, Fig. 6 represent crease die and the look closely schematic diagram of sheet material to be curved in the different bending stage with Fig. 7;

Fig. 8 represents a crease die end-view by Fig. 1 to Fig. 7 plate-bending apparatus, but its structure and Fig. 1 are to shown in Figure 7 different;

Fig. 9 represents a bent end view to Fig. 8 version;

Figure 10 represents the crease die layout perspective diagram of another kind of modification plate-bending apparatus;

Figure 11, Figure 12 and Figure 13 are the schematic diagrames of looking closely that is similar to Fig. 5, Fig. 6, Fig. 7, and in the different bent plate stages that Figure 10 plate-bending apparatus is pressed in expression, wherein Figure 11 illustrates original position, and Figure 12 illustrates the centre position, and Figure 13 illustrates end position.

Plate-bending apparatus, squeezer or bent plate forcing press by Fig. 1 are generally speaking represented with piece number 1; it preferably has a frame 2; being provided with the roof pressure mould 10 (being also referred to as patrix or single sword) that 5, one upper bolsters 9 of master carrier 3,4 and vertical guide rail have jaw shape or sword shape can move up and down along vertical guide rail in the frame end.Roof pressure mould 10 preferably is contained on the die holder 9 replaceably, but also can make one with die holder 9; The roof pressure mould preferably is provided with bending sword 13 (see figure 3)s that roughly are edge of a knife shape, has other mode cross section shape but also can adapt to the bending angle of being processed.

For top roof pressure mould 10 is moved up and down, for example being provided with is the worm drive of habitually practising originally, shown among Fig. 1 14.These worm drive 14 simultaneously for example comprise one by an electric motor driven screw rod 16, in case of necessity by a decelerator and a shaft coupling (not shown), this screw rod and nut 17 actings in conjunction that are fixed on the die holder 9, thus when screw rod 16 rotations, die holder 9 is moved up and down in guide rail 5 together with roof pressure mould 10.These worm drive 14 and other drive units that also will mention all are fixed on the frame 2 in known manner.

For bending sheets 18 (seeing Fig. 5 to Fig. 7), also on frame 2, be provided with two

bottom crease die

19,20 that are tabular or jaw shape.These two

crease die

19,20 swingingly are contained on the frame 2 in the following mode that also will illustrate, they can be around a common swinging axle 21 (seeing Fig. 5 to Fig. 7) swing, this be positioned at sheet material 18 to be curved below, flanging to be processed 22 zone a little, also be positioned at simultaneously on the plane 23 that the roof pressure moulds 10 determined by guide shaft 5,6 move up and down (seeing Fig. 3 and Fig. 5).

A swing mechanism is as driving crease die 29,20 around 21 swings of common balance staff, and this swing mechanism contains several rack gearings of arranging along plate-bending apparatus 1 width in the present embodiment, shown in 24 among Fig. 1 to Fig. 3.Simultaneously in detail, the arc-

shaped rack

61,62 in each rack gearing all is contained on the lower area of crease die 19 separately or 20, as Fig. 1 to Fig. 3 and Fig. 8 and shown in Figure 9 regularly.This

tooth bar

61,62 and gear 63 or 64 mesh together, and this gear then is arranged on the

axle

27 or 28 that is parallel to each other with crease die 19,20.Two

axles

27,28 are respectively by a drive unit, and for example motor 72 or 73 drives, and as shown in Figure 1, can use decelerator (detailed showing among the figure) in case of necessity.Two

axles

27,28 extend along the whole width of plate-bending apparatus 1, and in its end, middle part and each rack gearing 24 places are rotatably supported on the frame 2 by corresponding bearing block 75, also to explain detailedly bearing block hereinafter.Each rack gearing 24 includes a

tooth bar

61 or 62 and gears 63 or 64 that are fixed on the

corresponding axle

27 or 28, as mentioned above, there are several this rack gearings 24 to be distributed on the width of plate-bending apparatus 1, thereby driving moment is evenly distributed as oscillatory gearing mechanism.Therefore at

axle

27,28 do when rotating driving,

tooth bar

61,62 just along a circular arc orbiting motion, its oscillation center is exactly a swinging axle 21, this hour rack and coupled

crease die

19,20 are opened with the separate mode swing together, and this process is showed by Fig. 5 (resting position), Fig. 6 and Fig. 7 (swinging open operating position) especially.

In order to support above-mentioned

axle

27,28 and crease die 19,20, on rack gearing 24 positions on the fixed cross beam 74 of frame 2, fixing several bearing blocks 75, they are along the width distribution of machine, and and crossbeam 74 perpendicular.Bearing block 75 comprises a bearing 77 (seeing Fig. 2 and Fig. 3) that is used for

axle

27,28, this bearing can be changed by pulling down bearing cap 76, also be provided with arc chute 78 (seeing Fig. 2 right side) in the both sides on bearing block top, in this groove, arc-

shaped rack

61,62 can be directed to slip by the corresponding circular arc feather key or the gib block 79 that are provided with on it.Respectively have two

tooth bars

61,62 to be directed to slip this moment on such bearing block 75, and one of them tooth bar is by axle 27, and another is driven by axle 28.Because the tooth bar 61 in this supporting structure, 62, its feather key 79, arc chute 78 and bearing block 75 are comparatively firm, therefore the load of bearing can distribute along machine-wide, makes the power that produces in bent plate and need bear can pass to frame 2 and crossbeam 74 thereof dispersedly.So bearing block 75 can be designed to comparatively light and handy structure.

Should be pointed out that and can only see axle 27 pairing gears 63 in Fig. 3, it is positioned in Fig. 1 and Fig. 2 before the bearing block 75, and the axle 28 pairing gears 64 among Fig. 3 then are positioned at the back of bearing block 75, so dot.In addition, the bearing 77 that is positioned at the axle 28 under the bearing cap 76 can be seen by axle 28 places in Fig. 3 shown in the right side, referring to shown in Figure 2.Can also see that in Fig. 3 the cross section of two

axles

27,28 is to be so-called " equal thickness " shape, so gear 63 or 64 can be fixed on the axle under the situation of the cross section that does not reduce axle in (for example key-groove connection).Each

crease die

19 or 20 and the

tooth bar

61 or 62 under it for example can close or interference fit connects together by simple inserting, this is connected and realizes by the

mating flanges

80,81 of making one with

tooth bar

61 or 62, referring to Fig. 3, Fig. 8 and Fig. 9 are threaded but also can adopt.

As shown in Figures 2 and 3, two

crease die

19,20 connect 53 along the inward flange on its top by a hinge and are hinged together on whole working width.As shown in Figure 4, be provided with the swivel hook that can be entrenched togather mutually or 52, hinge axis 54 of hinge lug pass these rings or ear is assembled together both this moment.The hinge axis 54 of this hinge connection 53 has been determined above-mentioned swinging axle 21.Two crease die 19,20 can be at work around this axle swing.

In detail, each crease die 19,29 all is arranged to die holder, and it includes the mould section 55 that can take off replacing separately, and mould section 55 is hinged together in pairs by hinge axis 54 on its length direction.This mould section 55 can take simple connector to connect, and promptly the tenon 82 with its longitudinal extension is fixed in the groove 83 corresponding on the

crease die

19,20 that works as die holder, thereby can be very easy, die change section 55 more promptly.Actual show exceed be unexpectedly, each mould section 55 and its die holder or crease die 19, connection between 20 does not also require very firm, its reason is, its horizontal component of the bending force of Chan Shenging has at least and most of is cancelled by hinge 53 at work, is connected the power vertical force or along crease die 19 just basically of transmitting (tenon 82, groove 83) by connector, the power of 20 plane distribution, this component then can connect 82,83 by tongue-and-groove and successfully bear.Consider the wearing and tearing of generation at work, preferably be provided with mould filler rod 85 make its finish by sheet material contact zone 84 (see Fig. 3,4 and Fig. 8) carry out buckling work, this filler rod 85 for example can be a kind of carbide alloy filler rod, and is fixed on mould section 55 or crease die 19 by bolt 86, on 20, as shown in Figure 8.Another kind of different therewith inlay strip structure is seen shown in Figure 9, has also increased tongue-and-groove on the carbide alloy filler rod 85 wherein and has connected 87.Also be shown in broken lines crease die in Fig. 8 and Fig. 9, for example Zuo Ce crease die 19 can not need Fig. 1 to mould section 55 shown in Figure 8, that is to say, crease die 19 (20) itself constitutes hinge and connects 53; 85 of filler rods can be provided with or the 55 such segmentations of the mould section shown in Fig. 1 to 4 consistently.

The working method of described plate-bending apparatus 1 is illustrated to schematic diagram shown in Figure 7 and with reference to Fig. 2 and Fig. 3 (wherein Zuo Ce crease die 19 is opened) by Fig. 5 below.

Initial or the resting position of plate-bending apparatus 1 illustrates with solid line in Fig. 5.Top roof pressure mould 10 is positioned at the resting position of sheet material 18 tops at this moment, can sheet material 18 to be curved be sent into plate-bending apparatus 1 and location by artificial or machinery on this position.When bent plate circulation beginning, roof pressure mould 10 at first moves downward by means of worm drive 14 (see figure 1)s, till its cutting edge 13 contacts the sheet material to be curved 18 that has been imported on the crease die 19,20.In fact sheet material 18 be clamped between upper and lower three

moulds

10,19 and 20 in this stage, and roof pressure mould 10 shown in broken lines among Fig. 5 is represented these states.

The

driving shaft

27,28 of the tooth bar transmission 24 of

crease die

19,20 begins to rotate then.Tooth bar is driven along chute 78 (see figure 3)s for 61,62 this moments, thereby makes

crease die

19,20 around its common swinging axle 21 mutual backswings, that is to say, as shown in Figure 5 and Figure 6, the crease die 19 in left side is swung clockwise, the crease die 20 inhour swings on right side.Along with the swing of

crease die

19,20, sheet material 18 is at first for example bent under the location of the following cutting edge 13 of top roof pressure mould 10 symmetrically, produces a folding rib 22, as shown in Figure 7.In this bending process, the 10 best effects by means of the worm drive (see figure 1) of roof pressure mould are positioned or lock, and make it constitute a fixed roof pressure head in the bending process.Sheet material is for example curved about 90 ° along folding rib 22 18 this moments, referring to shown in Figure 6; For another the acute angle shape folding rib that in this bending process, also can without difficulty sheet material 18 be curved shown in Figure 7.If sheet material 18, for example has the curved good limit 34 shown in Fig. 5 to Fig. 7 in advance through once bending process, then can produce so-called " collision " situation, roof pressure mould 10 can be run at this moment curved good limit 34 in bending.In order to prevent from the process that continues mobile crease die 19,20, to cause the intentional deformation of sheet material 18, top roof pressure mould 10 is swingingly supported around a trunnion axis, thereby when running into limit 34, can get out of the way.For fear of adopting at the swinging mounting seat that must on roof pressure mould 10, be provided with in such cases, also can take another kind of scheme for this collision situation, its advantage is can produce equilibrium of forces by hinge 53; That is to say that crease die 19,20 above-mentionedly particularly the working method with unequal angular velocity swing, can also adopt asymmetrical working method with mutual reverse symmetry except adopting, and only stays very little synthetic horizontal component relatively because amount to.Describedly preferably making two crease die 19,20 have independently oscillatory gearing mechanism on this plate-bending apparatus 1, is to realize independent swing by drive motors 72,73 independently and by motor-driven

axle

27,28 in the present embodiment.Like this, when described collision situation occurring, if edges of boards 34 touch the side of roof pressure mould 10, as shown in Figure 7, the crease die 20 that then is positioned at this side just stops swinging, and has only another crease die 19 to continue swing, till the bending of finishing sheet material 18, as shown in Figure 7.

In addition it is also conceivable that two

crease die

19,20 at the beginning (see figure 5) just with the swing of different speed, thereby in a continuous course of work, reach end position shown in Figure 7.

After reaching state shown in Figure 7, can also allow the roof pressure mould move up where necessary and break away from sheet material 18, make two crease die 19 then, 20 continue upwards swing opens, thereby producing one at folding rib 22 places of described processing amounts to, that is to say that the left side edges of boards among Fig. 7 close up direct and another edges of boards 18.As shown in FIG., in this bending stage, the frictional force that is acted on the sheet material by contact zone 84 has reached the degree that is enough to clamp through degree of depth bending sheets 18 between

crease die

19,20, therefore no longer needed roof pressure mould 10.

As shown in Figure 5 and Figure 6, for the initial bending process of described plate-bending apparatus 1 importantly, describedly determine that on the resting position of crease die 19,20 (see figure 5)s the placed side of sheet material 18 or the sheet material contact zone 84 of locating surface 91 will carry out the transition to hinge 53 by a groove 90.This groove 90 provides the space for sheet material 18 at folding rib 22 positions to be processed when the beginning bent plate, make sheet material 18 unlikely being extruded at this place, and the extruding situation occurs in the next meeting of situation that interconnective crease die end face is the plane.In addition, also as shown in Figure 5, hinge axis or swinging axle 21 be arranged in the sheet material placed side 91 (being the lower surface of Fig. 5 sheet material 18) that limited by contact zone 84 following a little, thereby begin in the bent plate effect, the transmission that is moment of rupture on the sheet material 18 provides a favourable lever arm.

After the bent plate process is finished,

mould

10,19,20 various transmission devices return again, make crease die 19,20 pendulum get back to vertical initial positions shown in Figure 5, simultaneously roof pressure mould 10 move up (if also not on move).Can move on to next crooked place or take out in plate-bending apparatus 1 this moment bending good sheet material 18.

The main working parts of schematically illustrated another kind of plate-bending apparatus 1 in Figure 10 to 13, thereon, bed die 10,19 and 20 relative motion aspect, this the device with embodiment noted earlier in identical, but be not that top roof pressure mould 10 keeps motionless in the bent plate process, but the maintenance of one of bottom crease die is motionless, promptly as Figure 10 to shown in Figure 13 be that the crease die 20 on right side is motionless, another crease die 19 is then in the bending to sheet material 18, (seeing Figure 11 to Figure 13) swung as previous embodiment, in order to produce the relative oscillating motion between the mould, top roof pressure mould 10 is preferably to work in coordination with swing than bottom, left side crease die 19 angular speed half as large, referring to the centre position of three moulds shown in Figure 12 and final position shown in Figure 13.If observe Figure 10 to this motion process shown in Figure 13, can see that then this swing process and prior figures 1 are to shown in Figure 9 similar from top roof pressure mould 10 (resting position).But Figure 10 each motion stage extremely shown in Figure 13 is a benchmark with fixed frame (also not shown in Figure 10 to Figure 13) then.Figure 10 can be used for the occasion that a side of sheet material to be curved 18 folding ribs only allows minute movement or allows to move to actuating mechanism shown in Figure 13.

In detail, to embodiment shown in Figure 13, two bottom crease die 19,20 also are hinge shape at Figure 10, and being hinged by the earrings 52 that is entrenched togather mutually is integral, and form 53, hinge axis 54 of hinge and pass whole hinge arrangement.Two crease die 19,20 of hinge 53 both sides and the contact-making surface of sheet material to be curved 18 are the jaw shape that is rounded down.Two crease die 19,20 can be embedded with independent mould section 55 for the ease of replacing equally, and this mould section can be fixed on die holder or the mould bottom 56 by bolt 57.In order to make 19 swings of left side mould, (detailed illustrate) arc-shaped rack 58 can be set in the bottom, and tooth bar 58 passes the guide hole 59 on the substrate 56 of another crease die 20, and and driven wheel 60 engagements, this gear is the same to gear shown in Figure 9 63,64 with Fig. 1 basically.The driving of gear 60 can resemble Fig. 1 mode extremely shown in Figure 9 and be finished by detailed drive motors and the decelerator that illustrates among a Figure 10.

With dashed lines is schematically illustrated when gear 60 inhours are rotated (seeing the direction of arrow) in Figure 10, and the mould 19 in left side is outwards swung, and promptly puts from right side mould 20.For simplicity, do not express upper die 10 when a lower mould 19 is done oscillating motion, as mentioned above preferably with half situation in the angular speed oscillation of lower mould 19.

The driving of upper die 10 can take to be similar to the mode of mould 19 in principle, and wherein the speed reducing ratio of decelerator preferably can be determined at 2: 1.This drive unit itself is known, so repeat no more herein.

In addition, the supporting of upper die 10 on the not detailed frame that illustrates that should be understood that the plate-bending apparatus among Figure 10 can be provided with the mode that is similar to above-mentioned Fig. 1 basically, promptly particularly in the end of master carrier 3,4, herein for example and worm drive (14 among Fig. 1) or similarly transmission device is together, swingingly be bearing on the lower bearing bracket 2, this structure available usual manner for the professional itself is realized.

Also illustrate in Figure 11 to Figure 13 and be used between the

bottom crease die

19,20 swinging axle 21 of swing relatively, the geometrical axis of hinge axis 54 (see figure 10)s of this and hinge 53 coincides.When bent plate, upper die 10 is also around swinging axle 21 swings, as Figure 12 and shown in Figure 13.

The center of arc-shaped rack 58 is positioned on this swinging axle 21 (being the geometrical axis of hinge axis 54) certainly.

More than by means of most preferred embodiment the present invention has been done detailed description, thereby also may have other variation and remodeling within the scope of the invention.For example it is contemplated that Fig. 1 connects 53 to hinge shown in Figure 9 a coherent hinge axis 54 is set, its length can equate with machine-wide.On the other hand, also can in segmented hinge arrangement (referring to Fig. 4), each hinge axis 54 be arranged in a side of paired mould section 55, and can make in its hinge earrings 52 through following a pair of mould section 55, thereby available this mode realizes that each is to the connection between the mould section 55.

It is also conceivable that and not adopt described vertically arranged plate-bending apparatus 1 that this moment, sheet material 18 to be curved was that level is sent into, and also can select another kind of arrangement for use, was the layout that tilts on for example a kind of basis, and had the initial position that sheet material 18 is sent in corresponding inclination.Only needing that rack section is done corresponding change this moment gets final product.

For drive motors, as be used to swing the drive motors 72,73 of

crease die

19,20 and the drive motors of two worm drive 14, corresponding electric control circuit can be set, drive motors can be started and stop as required.Certainly, also can for example replace drive motors in principle with hydraulic motor or pressure medium working cylinder.

For example can also drive upper die 10 with eccentric stiffener or working cylinder in addition moves up and down, in case of necessity upper die 10 is locked on operating position, its underpart, can be as Fig. 2,3,6 and shown in Figure 7ly realize by eccentric stiffener is adjusted to this position simply.

In a specific embodiment as shown in Figure 1, the width of machine is 1500 millimeters, and the length of mould section 55 is 125 millimeters, and the diameter of hinge axis 54 is 8 millimeters; The calibration distance of swing mechanism 24 is 400 millimeters.And outer driver element respectively staggers about 150 millimeters from the end face that installs 1.The gross weight of this plate-bending apparatus 1 is no more than 500 kilograms, and it can bend the sheet material of 2 millimeters thick without difficulty.

Claims

1. plate-bending apparatus (1) has 3 moulds (19,20,10), i.e. two adjacent arrangements and hinged crease die (19,20), they determine sheet material placed side (91) with sheet material contact zone (84) on resting position, and one between operating position on the sheet material (18) and home position, can do straight-line, be positioned at crease die (19,20) the roof pressure mould (10) on opposite, wherein two punch dies (19,20; 10,19) use pivotal mounting, and respectively be connected in swing mechanism (24), sheet material (18) is by means of rotating at least one crease die (19,20), on the operating position, bent around roof pressure mould (10), it is characterized in that by a hinge fitting (53) that is offset to plate placed side (91), two crease die (19,20), directly interconnect at the width range of squeezer (1), in crease die (19 along its edge that on resting position, faces with each other, 20) sheet material contact zone (84) is with being provided with a die in each crease die (19,20) between the hinge connector (53); The mould section (55) that crease die (19,20) setting can be rolled over, they are along the adjacent arrangement of width of squeezer (1), and this mould section connects in pairs through the hinge fitting, and the hinge connector (53) of crease die (19,20) is made of the right hinge connector of all mould sections.

2. plate-bending apparatus as claimed in claim 1, it is characterized in that, two crease die (19,20) can swing independently of each other, several swing mechanisms (24) along the width distribution of plate-bending apparatus (1) are connected two crease die that can independently swing (19,20) on each in, roof pressure mould (10) is then only done rectilinear motion.

3. described plate-bending apparatus as claimed in claim 2 is characterized in that, roof pressure mould (10) is designed to return on crease die (19,20), so that can be at folding this sheet material (18) of the last bending stage of sheet material (18).

4. plate-bending apparatus as claimed in claim 1, it is characterized in that, a crease die (20) fixedly installs, another crease die (19) and the supporting of roof pressure mould (10) pendulum-type, and the angular speed of the crease die that can put (19) motion is the twice of the angular speed of roof pressure mould (10) motion.

5. as the described plate-bending apparatus of arbitrary claim among the claim 1-4, it is characterized in that mould section (55) is fixed on simple connector connection (82,83) and is positioned at plaing on the crease die (19,20) of die holder effect usually of sheet material contact zone (84) opposite side.

6. as the described plate-bending apparatus of arbitrary claim among the claim 1-4, it is characterized in that in pairs the mould section has the independent hinge axis (54) that adapts with the mould segment length.

7. plate-bending apparatus as claimed in claim 6 is characterized in that, respectively protrudes in the right hinge earrings (52) of adjacent mould section at the hinge axis (54) of the mould section of a side.

8. as the described plate-bending apparatus of arbitrary claim among the claim 1-4, it is characterized in that be provided with a shared continuous hinge axle (54), this passes all mould sections (55).

9. as the described plate-bending apparatus of arbitrary claim among the claim 1-4, it is characterized in that, is that mould section (55) is provided with the releasable filler rod (85) that constitutes sheet material contact zone (84).

10. plate-bending apparatus as claimed in claim 9 is characterized in that, filler rod (85) is fixed by bolts on the mould section (55).

11. as the described plate-bending apparatus of arbitrary claim among the claim 1-4, it is characterized in that, be provided with a corresponding arc-shaped rack (61,62; 58) as swing mechanism, this tooth bar and affiliated crease die (19,20; 19) be fixed together, and by a gear (63,64 that is contained on the axle (27,28); 60) drive.

12. bending device as claimed in claim 11 is characterized in that, tooth bar (61,62) is installed in the circular arc supporting base that is fixed on the bearing block (75) on the frame (2).

13. plate-bending apparatus as claimed in claim 12 is characterized in that, rotates in order to drive pairing two axles of crease die (19,20) (27,28), and two independently motor (72,73) are set.