CN1064632A

CN1064632A - Plate-bending apparatus

Info

Publication number: CN1064632A
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: 1992-09-23
Anticipated expiration: 2007-03-13
Also published as: CA2105587A1; SK98193A3; DE59200920D1; SK279575B6; EP0575393B1; EP0575393A1; BR9205777A; CZ186093A3; WO1992016319A1; CN1045731C; AU1349192A; CZ283115B6; HUT64492A; ES2065177T3; JPH06505677A; AR246448A1; JP2672402B2; ATE115014T1; DK0575393T3; HU9302585D0

Abstract

A kind of plate-bending apparatus (1) has the crease die (19,20) that two relative swing types link together.This bending mould is for being set up in parallel, and on resting position, determine sheet material placed side (91) with sheet material contact zone (84), have at least in this crease die one be set as can swing and be connected with swing mechanism (24), also have one be set as between the operating position of sheet material (18) and home position, can do straight-line, be positioned at crease die (19,20) the roof pressure mould (10) on opposite, thereby bending sheets on the operating position (18), two crease die (19,20) directly are hinged together in the workspace along the edge that it vertically is close together on resting position mutually.

Description

Plate-bending apparatus

The present invention relates to a kind of plate-bending apparatus and have 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.

The most famous and the most general bent plate or the flanging technology of use is, a top crease die is moved into place on the sheet material above lower mould, by crease die the crimp district to be formed of sheet material is pressed into (for example referring to French Patent (FRP) specification FA-A-2201973 and US Patent specification US-A-2649128) in the lower mould again, thereby realizes dings.The shortcoming of this technology is, generally can't form accurate qualification boundary or sharp crimp, each mould can only be processed a kind of completely specified camber, promptly a kind of completely specified bending angle, in addition, a big chunk in the energy that is applied is lost because of friction in mould.Above-mentioned shortcoming also is present in the another kind of die device basically, and wherein mould is that a kind of separated into two parts is movably arranged in the die holder, particularly is divided into the mold component that can also swing and interconnect, this structure example as can referring to:

German patent specification DE-C-115961, perhaps

European patent specification EP-A-379886,

French Patent (FRP) specification FR-A-1221933, or

German patent specification DE-A-1402118,

German patent specification DE-A-2418668,

US Patent specification US-A-1045089,

US Patent specification US-A-1258892,

US Patent specification US-A-1633744,

US Patent specification US-A-2433841,

Japanese patent specification JP-A-62-127125,

Japanese patent specification JP-A-63-36923, and

Japanese patent specification JP-A-63-199028.

In above-mentioned all structures, actual bending work is done by the top crease die, so this top crease die must be quite firmly and is equipped with the servo-actuating device of quite big specification.

The another kind of known plate-bending apparatus (seeing WO 81/02535) that is used for molded sheet material is used for processing ripple on those sheet formings, and one of them patrix that can move up and down is with a fixing counterdie and thereby be located at that both sides tilt and tilt towards the auxiliary mould co-operation that moves up and down at its principal plane.When patrix extruded ripple with the fixedly counterdie that is positioned at its opposite on sheet material, two oblique side moulds just were that next ripple processing is ready.This known squeezer is not for produce sharp as far as possible crimp design in a bent plate, and is therefore inapplicable yet.

At US Patent specification US-A-3044526, or German patent specification DE-A-1402838, US Patent specification US-A-3282076, the plate-bending apparatus of introducing among british patent specification GB-A-11198111 and the british patent specification GB-A-2050887 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 (as 2 meters or 3 meters) more want like this when machine-wide is big.Even now can not bend sheet material accurately in the machine mesozone, causes the mesozone of curved sheet material 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 may reach 15 to 20 tons, even bigger.

The objective of the invention is, a kind of bending device of the above-mentioned type 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.In addition, also in the bent plate process, not damage sheet material as far as possible.

The plate-bending apparatus of the above-mentioned type of the present invention is characterized in that two crease die directly are hinged together in the workspace along the edge that it vertically is close together mutually on resting position.

In plate-bending apparatus of the present invention, two crease die thereby link together by hinge in the workspace, in the bent plate process, connect to come the transmission of realizable force by this hinge, a part that acts on its horizontal component of power on the hinge when making bent plate at least obtains balance, and importantly directly obtain balance, 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 very heavy yet in the workspace.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 to make a crease die simply just to stop under the case of collision occurring by means of swing mechanism independently, 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, to adapt to the need of 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 bending mold 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 modification 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 lower bearing bracket 2; be provided with 5, one upper bolsters 9 of

master carrier

3,4 and vertical guide rail in the frame end and be also referred to as patrix or single sword with the roof pressure mould 10(of jaw shape or sword shape) can move up and down along vertical guide rail.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 the bending sword 13(that roughly is edge of a knife shape and sees Fig. 3), have other shape of cross section 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.

18(sees Fig. 5 to Fig. 7 for bending sheets), also on frame 2, be provided with two following

crease die

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

crease die

19,20 swingingly are contained on the frame 2 in the following mode that also will illustrate, they can see Fig. 5 to Fig. 7 around a common swinging axle 21() 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).

Crease die 29,20 is around 21 swings of common swinging axle down as driving for a swing mechanism, 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, arc-shaped rack in each rack gearing or

sector

61,62 all are contained on the lower area that descends crease die 19 or 20 separately regularly, as Fig. 1 to Fig. 3 and Fig. 8 and shown in Figure 9.This tooth bar or

sector

61,62 and for example be that onesize

gear

63 or 64 meshes together, this gear then are 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 opens with the separate mode swing with the following

crease die

19,20 that links to each other with its its, 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 that a bearing 77(who is used for

axle

27,28 sees Fig. 2 and Fig. 3), this bearing can be changed by pulling down bearing cap 76, also be provided with arc chute 78(in the both sides on bearing block top and see Fig. 2 right side), in this groove, arc-shaped rack or

sector

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

sectors

61,62 to be directed to slip this moment on such bearing block 75, and one of them sector 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

sector

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

sector

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 determined that 21, two crease die of above-mentioned swinging

axle

19,20 can be at work around this axle swing.

In detail, each

crease die

19,20 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 showing unexpectedly, connection between each mould section 55 and its die holder or the

crease die

19,20 does not also require very firm, its reason is, its horizontal component of the bending force of Chan Shenging has at least major part to be cancelled by hinge 53 at work, connect transmission (tenon 82 by connector, groove 83) power is vertical force or along the power of the plane distribution of

crease die

19,20, this component then can connect 82,83 by tongue-and-groove and successfully bear just basically.Consider the wearing and tearing that produce at work, preferably be provided with mould filler rod 85 make its fully 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 be fixed on mould section 55 or the

crease die

19,20, as shown in Figure 8 by bolt 86.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) own formation hinge connection 53; 85 of filler rods can be provided with or the 55 such segmentations of mould section as shown in Figures 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 is at first seen Fig. 1 by means of worm drive 14() move downward, till its cutting edge 13 contacts the sheet material to be curved 18 that has been imported on the bottom 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 bottom crease die 19,20 begins to rotate then.61,62 this moments seen Fig. 3 along chute 78(by tooth bar) be driven, thus make

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

bottom 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, roof pressure mould 10 is preferably seen Fig. 1 by means of worm drive 14() effect be positioned or lock, make it in the bending process, constitute a fixed roof pressure head.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 bottom crease die 19,20 above-mentionedly particularly the working method with identical angle swinging, can also adopt asymmetrical working method with mutual reverse symmetry except adopting, and only stays very little synthetic horizontal component relatively because amount to.So on this plate-bending apparatus 1, preferably make two crease die 19,20 have independently oscillatory gearing mechanism, be to realize independent swing in the present embodiment by

drive motors

72,73 independently and by motor-driven axle 27,28.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 that processed 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, described in crease die 19,20(sees Fig. 5) resting position on determine that 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, it is the lower surface of Fig. 5 sheet material 18 that hinge axis or swinging axle 21 are arranged in the sheet material placed side 91(that is limited by contact zone 84) following a little, thereby when the bent plate operation began, the transmission that is moment of rupture on the sheet material 18 provided a favourable lever arm.

After the bent plate process is finished,

mould

10,19,20 various transmission devices return again, make bottom crease die 19,20 pendulum get back to vertical initial positions shown in Figure 5, simultaneously top 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 device is identical with embodiment's noted earlier, 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 bottom crease die 20 on right side is motionless, another bottom crease die 19 then (is seen Figure 11 to Figure 13) and is swung as previous embodiment in the bending to sheet material 18, 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 of chamfering fillet.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.For lower mould 19 swings that make the left side, the arc-shaped rail 58 of band tooth (detailed illustrate) can be set in the bottom, and guide rail 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.But the driving image pattern 1 of gear 60 to mode shown in Figure 9 is finished by not 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 hinge axis 54(of this and hinge 53 sees Figure 10) geometrical axis coincide.When bent plate, upper die 10 is also around swinging axle 21 swings, as Figure 12 and shown in Figure 13.

It is the geometrical axis of hinge axis 54 that the center of arc-shaped rail 58 is positioned at this swinging axle 21(certainly) on.

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 do not adopt described vertically arranged plate-bending apparatus 1, this moment, sheet material 18 to be curved was that level is sent into, and also can select another kind of arrangement for use, and for example a kind of is the layout that tilts basically, and has 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 the crease die (19 that two relative swing types link together, 20), this crease die is for being set up in parallel, and on resting position, determine sheet material placed side (91) with sheet material contact zone (84), have at least in this bending mould one be set as can swing and be connected with swing mechanism (24), also have one be set as between the operating position of machining sheet (18) and home position, can do straight-line, be positioned at crease die (19,20) the roof pressure mould (10) on opposite, thereby bending sheets on the operating position (18), it is characterized in that, two crease die (19,20) directly are hinged together in the workspace along the edge that it vertically is close together on resting position mutually.

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, preferably be connected crease die (19 along the swing mechanism (24) of the width distribution of plate-bending apparatus (1) this moment, 20) on, roof pressure mould (10) is then only done rectilinear motion.

3, plate-bending apparatus as claimed in claim 2 is characterized in that, two crease die (19,20) are provided with separate swing mechanism (24).

As claim 2 or 3 described plate-bending apparatus, it is characterized in that 4, roof pressure mould (10) is recalled on sheet material (18) in the final stage of bent plate, to realize amounting to of sheet material (18).

5, 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) swing type, and the angular speed of the crease die that can swing (19) motion is the twice of roof pressure mould (10).

6, as any one described plate-bending apparatus among the claim 1 to 5, it is characterized in that, in crease die (19,20) on, each crease die (19,20) for example curved projection or flatten the sheet material contact zone (84) in cross section and the hinge connection (53) of hinge shape between be provided with a groove (90), and hinge axis (21) is apart from sheet material placed side (91) a little position of staggering.

7, as any one described plate-bending apparatus among the claim 1 to 6, it is characterized in that, several are housed on crease die (19,20) along plate-bending apparatus (1) width mould section that be arranged in juxtaposition, that can take off (55,85).

8, plate-bending apparatus as claimed in claim 7 is characterized in that, mould section (55) connects (82,83) with simple connector, connects as tongue-and-groove, is fixed on to be positioned at plaing on the crease die (19,20) of die holder effect usually of sheet material contact zone (84) opposite side.

As claim 7 or 8 described plate-bending apparatus, it is characterized in that 9, mould section (55) is hinged together in couples, connect and compose the hinge connection (53) of crease die (19,20) by the hinge of all paired mould sections.

10, plate-bending apparatus as claimed in claim 9 is characterized in that, the mould section has the independent hinge axis (54) equal with the mould segment length in pairs.

11, plate-bending apparatus as claimed in claim 10 is characterized in that, the hinge axis of mould section (54) all stretches in the hinge earrings (52) of continuous paired mould section from a side.

As claim 7 or 8 described plate-bending apparatus, it is characterized in that 12, be provided with a shared continuous hinge axle (54), this passes all mould sections (55).

As any one described plate-bending apparatus among the claim 1 to 12, it is characterized in that 13, crease die (19,20) or mould section (55) are provided with the releasable filler rod (85) that constitutes sheet material contact zone (84).

14, plate-bending apparatus as claimed in claim 13 is characterized in that, filler rod (85) is fixed by bolts on crease die (19,20) or the mould section (55).

As any one described plate-bending apparatus among the claim 1 to 14, it is characterized in that 15, (respectively) is provided with an 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.

16, bending device as claimed in claim 15 is characterized in that, tooth bar (61,62) is supported on the circular arc supporting base that is fixed on the bearing block (75) on the frame (2), and this supporting base for example is a support slot (78).

17, as claim 15 or 16 described plate-bending apparatus, it is characterized in that, rotate, two independently motor (72,73) are set in order to drive pairing two axles of crease die (19,20) (27,28).