CN104925554B - For unwinding the unwinding equipment of sheet material volume - Google Patents

Abstract

The present invention relates to a kind of equipment (1), it include at least one pair of be used for lifted the arm (15,17) of volume (B) that will be unwound.Two arms are reversed by rotary shaft (13) and connected, and rotary shaft causes the rotation of two arms (15,17) around the rotation of its own axis (A A).In two arms (15,17) intermediate arm (35) is provided between, its mechanism engagement by the way that intermediate arm can be connected to rotary shaft rotates with it to rotary shaft (13), or rotary shaft is joined to so that intermediate arm can be connected to the fixed structure of equipment and remain connected to rotary shaft using articulated type connector, but not with being interfered by the volume of two arm (15,17) carryings in the position.

Description

For unwinding the unwinding equipment of sheet material volume

Technical field

The present invention relates to a kind of unwinding equipment for being used to unwind sheet material volume, sheet material volume is for example for corrugated board production Board rolls in line.

Background technology

In many industrial circles, it is necessary to unwind the sheet material volume for being transported to production line.Typically, paper roll is unwound to be fed to Corrugated paper board production line, wherein, two or more paper rolls are joined together, and are provided at least between two linings in them That be pre-formed ripple.

DE-A-102010008906 and US2012/0085483 is described using multiple unwinding equipments to unwind watt of paper roll Corrugated board production line.

EP-A-968945 discloses the unwinding equipment for this application.Known unwinding equipment generally includes at least one The arm that opposing connection trunnion axis rotates.Each arm has volume joint element.The volume rest on the ground and by the afterbody of the arm Bracket is picked, and the tail bracket will be rolled up from ground and be raised to unwinding position.In the position, the volume is unwound.Generally, institute State volume to unwind by the method drawn, that is, utilize the carry-over pinch rolls for being for example arranged in unwinding equipment downstream.Electronic tail can also be utilized Portion's bracket or periphery unwind element (such as band) to drive convolution to turn.

Generally, this take-off device has symmetrical structure, and it has two pairs of arms being arranged on the both sides of equipment, with simultaneously Two volumes of unwinding.

Recently, generate so that there are such unwinding equipment three arms to support two simultaneously in same rotary shaft The demand of individual volume, wherein the axial length each rolled up is substantially less than the maximal axial extension for the volume that can be processed, the volume can Supported merely with two arms.These equipment have different types of mechanism to change unwinding construction, from independent one with support The construction of two arms of volume switches to while supports the construction of two three arms coaxially rolled up, and vice versa.

It is known realize the target system it is extremely complex.For example, unwinding equipment needs assembly and disassembly to be disposed in two The 3rd intermediate arm between individual principal arm.During the assembly and disassembly operating cost and complexity, and need aerial crane or other Mechanism is to remove intermediate arm.

In other known equipment, there is the 3rd intermediate arm between two principal arms, the 3rd intermediate arm can be arranged In middle position, with two volumes of support simultaneously together with principal arm.Intermediate arm has two relative tail brackets, at least within One tail bracket can be removed.When only one volume needs processed, intermediate arm translates and is placed close to two sides One in arm, remove two tail brackets.Intermediate arm engages with one in two side arms.In this case, for turning The operation of unwinding equipment is changed, i.e., unwinds pattern switching to the pattern of two volumes of unwinding simultaneously from single volume, is time-consuming and complicated. Because the construction that unwinding equipment is typically dual and described arm in both sides should be identical, i.e., usual two volumes are being unwind The both sides unwinding of equipment or single volume are unwind in the both sides of unwinding equipment, therefore the complexity increase of these operations.

Therefore come to construct unwinding equipment according to specific demand with quick system, it is necessary to more simplify, and especially Support a structural transform individually rolled up into three arms from two arms while support the construction of two coaxial volumes of unwinding.

The content of the invention

According to the present invention, there is provided a kind of unwinding equipment for being used to unwind sheet material volume, it includes：Supporting construction；Around rotation The axle that shaft axis rotate and carried by the supporting construction；First arm and the second arm, they reverse and are connected to the rotary shaft To be rotated together with rotary shaft；The arm of centre the 3rd being arranged between the first arm and the second arm；Be pivoted to supporting construction and The tie-rod of the 3rd arm can be hinged to；3rd arm is fixed to the confinement element in rotary shaft, it is configured to：To by the 3rd arm Torsional restraint is to rotary shaft so that the 3rd arm integratedly rotates with the first arm and the second arm；And selectively the 3rd arm is passed through The attachment means of hinge type are connected to rotary shaft.So, the 3rd arm or intermediate arm can perform and the first and second arm identicals The motion controlled by rotary shaft, to support the volume of two substantial registrations together simultaneously.The first volume is by the first arm and the 3rd Arm is supported, and volume Two is supported by the 3rd arm and the second arm.Vice versa, discharges, passes through if the 3rd arm reverses from rotary shaft Hinge remains connected to be connected in supporting construction in rotary shaft and further by tie-rod, then the 3rd arm is maintained at not Operating position, it does not interfere with the single volume for supporting and handling by the first arm and the second arm in the inoperative position.

Using this arrangement, when the 3rd arm or intermediate arm and the first and second arms be used in conjunction with and meanwhile support two During volume, and when the 3rd arm or intermediate arm is not used and the first arm and the second arm support therebetween single volume together When, the 3rd arm or intermediate arm are remained and are connected in rotary shaft.From a kind of switching constructed to another kind construction to operator For it is very simple, quick and safe.

In one embodiment, the equipment includes first of the first joint element with the volume for being used to be unwound Arm, and the second arm of the second joint element with the volume for being used to be unwound.First and second joint elements it is facing with each other with Together therefore volume of the engagement between the first arm and the second arm simultaneously provides support to it.First and second arms can be relative to fixation Structure moves to from raised position reduces position.The equipment can include the 3rd arm, its be arranged in the first arm and the second arm it Between centre position and with facing with each other and be respectively directed to the first arm and the first middle engagement element of the second arm and second Middle engagement element.Middle engagement element is arranged to be coordinated in the following manner：The first joint element carried by the first arm can With with supporting the first volume with the first middle engagement element carried from the 3rd arm；The second joint element carried by the second arm It can coordinate with the second middle engagement element to support volume Two.3rd arm can be with the first arm and the second arm synchronously from rise Position, which is moved to, reduces position, to raise and reduce by two volumes simultaneously.In addition, the equipment includes confinement element, for by Three arms are tied to the axle of the rotation axis rotation around the diameter parallel of the volume with being supported by the arm.Rotary shaft controls the 3rd arm Raising and lowering motion.Confinement element is configured to alternatively：The 3rd brachiostrophosis is tied into rotary shaft, so that rotation The axis rigid rotating together of axle and the 3rd upper-arm circumference around rotary shaft；The 3rd arm is kept to be hinged in rotary shaft but can be reversed from it Release.The equipment also includes being used for the tie-rod that the 3rd arm is connected to fixed structure, so that proper 3rd arm is hinged to rotation When axle and tie-rod, the 3rd arm is maintained at relative to the volume supported when rotary shaft rotates by the first arm and the second arm and retracts position Put.

In certain embodiments, tie-rod is disposed adjacent to the distal end of the 3rd arm (i.e. in the rotation away from rotary shaft The position of axis) connect the 3rd arm and fixed structure.In certain embodiments, tie-rod may be hingedly attached to fixed structure with around with The axis that the rotation axis of rotary shaft is substantially parallel pivots.So, when the 3rd arm is hinged to rotary shaft and tie-rod, using be hinged To tie-rod and the arm of rotary shaft, rotary shaft causes tie-rod to swing around the rotation of its own axis.No matter which kind of rotary shaft is in Angle Position, the arm are maintained at the position that can never interference with the volume carried by the first and second arms, the first arm and Two arms are twisted being tied to the rotary shaft.

In some particularly advantageous embodiments, the confinement element for the 3rd arm to be tied to rotary shaft includes the first pin With the second pin.One of pin is configured to remove from the seat being connected with each other between arm and rotary shaft, and another is sold Connects hinge is formed between the 3rd arm and rotary shaft.

In certain embodiments, intermediate slider is installed on the rotary shaft, its can along rotary shaft be axially moved and Torsional restraint is to the rotary shaft.Such as the axial dimension according to volume, the movement of sliding block allow to adjust between the 3rd arm and the first arm Mutual distance, therefore, it is allowed to adjust the mutual distance between the 3rd arm and the second arm.For the 3rd arm to be tied into rotary shaft On confinement element be configured to the 3rd arm being connected to sliding block, and rotary shaft then the sliding block reverses and is connected to rotary shaft, i.e., Rotate together.Therefore 3rd arm is connected to rotary shaft by sliding block in an indirect way by confinement element, and pass through hinge type Connect or be rigidly connected and be connected to sliding block, this depends on operator scheme.

In an advantageous embodiment, removable pin is configured to provide articulated type connection between tie-rod and intermediate arm.

In certain embodiments, the first arm and the second arm are connected to rotation also along rotation axis in a manner of adjustable Axle, such as adapt it to the axial dimension of volume adjust its axial location and thus to adjust mutual distance.

As referring to embodiment will described in, the equipment can be symmetrical arranged to be existed with the double arrangement by three arms Each one or two volume of collateral support of two opposite sides.

According to an important aspect, the present invention provides a kind of unwinding equipment, for unwinding sheet material volume, including：Fixed knot Structure；At least one rotary shaft, the first arm and the second brachiostrophosis are connected thereto, and the first arm and the second arm are respectively arranged with first and connect Element and the second joint element are closed to engage the volume of the sheet material between them；3rd arm, it is disposed in the first arm and second Centre position between arm, there is the joint element for rolling up, and be connected to rotary shaft；For the 3rd arm to be tied into rotation The confinement element of axle, it is configured to selectively：

- the 3rd brachiostrophosis is tied into rotary shaft, so that the 3rd arm revolves together with rotary shaft, the first arm and the second arm Turn；And

- keep the 3rd arm to be hinged to rotary shaft.

In addition, the equipment includes connecting element, such as tie-rod, the 3rd arm is connected to fixed structure so that work as rotation When rotating shaft rotates together with the first arm and the second arm, the 3rd arm phase in the case where being hinged to rotary shaft and being connected to fixed structure Retracted position is maintained at for the volume by the first arm and the support of the second arm.

Feature and embodiment it is open below and in the following claims by it is further proposed that, it forms this explanation The integral part of book.Brief description above proposes the feature of each embodiment of the present invention, following detailed to cause Description can be better understood and present contribution to the art can be better understood.Certainly, it is of the invention other Feature will be described below and will be proposed in described claim.In this aspect, the multiple of the present invention are being described in detail Before embodiment, it should be understood that it is thin that each embodiment of the invention is not limited to structure being set forth below or being shown in accompanying drawing The application of section and element configuration.The present invention can have other embodiment and can implement and perform in a variety of ways.Also, should It should not be construed as limited when understanding phraseology and terminology used herein to be in order at the purpose of description.

Similarly, it will be understood by those skilled in the art that the design of disclosure institute foundation can be readily utilized as designing For performing the other structures of multiple purposes of the present invention, method and/or the basis of system.It is important, therefore, that claim This equivalent structure is believed to comprise, without departing from its scope.

Brief description of the drawings

The present invention is better understood with by the description and accompanying drawing for the non-limiting example that shown below the present invention.More Specifically, in the accompanying drawings：

Fig. 1 to 3 shows the axonometric drawing according to different angle of the equipment in one embodiment；

Fig. 4 shows the front view of the equipment in Fig. 1 to 3；

Fig. 5 shows the sectional view along Fig. 4 V-V；

Fig. 6 shows the view along Fig. 4 VI-VI；

Fig. 7 is the plan for the intermediate arm isolated in slave unit；

Fig. 8 shows the partial section along Fig. 7 VIII-VIII；

Fig. 9 shows the sectional view along Fig. 8 IX-IX；

Figure 10 is the partial section along Fig. 5 X-X；

Figure 11 is the simplified plan view of the operation for the equipment for showing two different configurations；

Figure 12 A diagrammatically illustrate movement of the intermediate arm in inoperative position；

Figure 12 B show the entirety of the volume by side arm supports, positioned at two different Angle Positions of side arm, wherein among Arm is in inoperative position；

Figure 13 is the side view of the slip plane of the sheet material unwind by unwinding equipment and corresponding finishing suction nozzle；With

Figure 14 shows the plan along Figure 13 XIV-XIV.

Embodiment

The detailed description of illustrative examples is carried out referring to the drawings below.Identical reference in different drawings Represent same or similar element.In addition, what accompanying drawing was not drawn to scale.Also, following detailed description does not limit this hair It is bright.On the contrary, the scope of the present invention is defined by the appended claims.

" a certain embodiment " that is referred in specification full text or " one embodiment " or " some embodiments " mean to include The specific part that is relatively described with one embodiment at least one embodiment of disclosed theme, structure or Feature.Therefore, the term " a certain embodiment " or " one embodiment " or " some realities occurred in each place of specification full text Apply example " it is not to necessarily imply that some or some embodiments.In addition, specific part, structure or feature can be at one or more It is combined in any suitable manner in individual embodiment.

In the embodiment of accompanying drawing description, unwinding equipment is integrally represented with reference 1, and it has relative to perpendicular Substantially symmetric structure, rolled up with being supported on the both sides of equipment 1.In other embodiments, construction can be supported Arm is arranged only on the side of equipment.

Equipment 1 includes fixed structure 3.Fixed structure 3 can have a pair of sidewalls 5 and be erected vertically from the corresponding of each wall extension Vertical part 7.Vertical riser 7 can be connected by upper beam 9.Fixed structure 3 can also include lower beam 11.What is shown In embodiment, equipment 1 includes the one or three weighing arm being located at for crossbeam 9 on side and the on opposite side the 2nd 3 Weighing arm.These arms and the element being connected thereto are shown in the both sides of equipment 1 with identical reference, and are generally only described One in two microbrachias, reason is the mirror image that another is about this.

More specifically, equipment 1 includes the rotary shaft 13 with rotation axis A-A in every side.Rotation axis can be with parallel In crossbeam 9 and 11.First arm 15 and the second arm 17, which reverse, is connected to rotary shaft 13.Two arms 15 and 17 and rotary shaft 13 are integratedly Rotated around axis A-A.Suitable actuator can control the rotation of two pairs of arms 15,17 and corresponding two rotary shafts 13.Such as Cylinder-piston actuator 16 can be used, its fixed structure of unwinding equipment is connected at 16A and be connected at 16B with The integral annex 18 of corresponding rotary shaft 13.

First arm 15 has the first joint element of the volume for being used for being unwound.First joint element is overall with digital 19 tables Show, it can include the first tail bracket 21, and first tail bracket is configured to can be inserted into the center core of volume.Tail bracket 21 can have the braking parts 23 for the rotation for being used to brake tail bracket, and be unwind on the volume for keeping supporting from arm 15 and arm 17 Sheet material tensioning.The motion that tail bracket 21 has the central winding core of insertion volume and extracted out from central winding core (is not shown Go out).The motion is schematically represented with double-head arrow f15.The motion by by means of actuator described below make arm 15 along Rotary shaft 13 is translated and provided.Numeral 25 represents cylinder-piston actuator, and it controls ejector apparatus 26 to be removed from tail bracket Volume or its winding core.

Second arm 17 has the second joint element of the volume for being used for being unwound.Second joint element is overall with digital 27 tables Show, can include the second tail bracket 29, second tail bracket is configured to the center core of insertion volume.Tail bracket 29 with Tail bracket 21 is symmetrical, i.e., tail bracket faces each other, so that tail bracket 29 can insert volume in the opposite side of tail bracket 21 Center core.Tail bracket 29 can have the braking parts 31 for the rotation for being used to brake tail bracket 29, and keep from arm 15th, the sheet material tensioning unwind on the volume of 17 supports.Tail bracket 29 has the central winding core of insertion volume and wound from center The motion (not shown) that core is extracted out.The motion schematically represents that the motion is by making arm 17 along rotation with double-head arrow f17 Axle 13 is translated and provided.Cylinder-piston actuator 33 controls ejector apparatus 34 to remove volume or its winding core from tail bracket 29 Portion.

The equipment described so far is substantially identical with equipment well known in the prior art.

3rd arm is installed, it is marked as 35 and in arm 15,17 in each in two rotary shafts 13 Between.3rd arm 35 is also referred to as intermediate arm 35 in the following description, and it has the dual inter-engagement for the volume for being used for being unwound Element.In certain embodiments, the intermediate arm 35, which has, is included towards the tail bracket 38 of the orientation of tail bracket 21 of arm 15 Volume joint element among volume joint element 37, and second of the tail bracket 40 including being orientated towards tail bracket 29 among first 39。

In an advantageous embodiment, intermediate arm 35 is directly connected to rotary shaft 13 by sliding block 45.In the central portion, rotate Axle 13 carries a pair of guiding pieces 46, and the two shoes things 47 integral with sliding block 45 engage with guiding piece 46.By along two-way Arrow f45 moves sliding block 45, and the position of intermediate arm 35 can be adjusted along the axis A-A of rotary shaft 13.By along guiding piece 46 translator sliders 45, the relative distance between arm 35 and two arms 15,17 can be adjusted, to cause the distance for example to fit The axial dimension that should be rolled up.

In addition, each pair arm 15,17 is arranged in corresponding rotary shaft 13, so that they can be along corresponding rotary shaft 13 Axial translation.Therefore, each rotary shaft 13 has the continuous guiding piece 49 of a pair of parallel axis A-A in axle, arm 15,17 is with drawing Guiding element 49 is engaged to constrain its torsion but can be moved axially relative to rotary shaft 13.Each arm 15,17 and corresponding actuator (example Such as cylinder-piston actuator 51) it is associated, to control translational motion of the respective arms along rotary shaft 13.Four-headed arrow f15 and F17 represents the axial movement of arm 15,17.In other embodiments, different types of actuator can be used, such as controls screw rod The electro-motor or hydraulic motor engaged with nut.Motion f15 and f17 allow adjust two arms 15,17 relative distance, two Arm 15,17 is relative to the relative distance of intermediate arm 35, and the absolute position relative to fixed structure 3.In this way, should Equipment is suitable for the volume of axially different size.

Describe as will be, intermediate arm 35 can enter operating position, and in operating position, it with arm 15,17 is in phase With Angle Position and torsional restraint to rotary shaft 13.Under these conditions, arm 15,17 and 35 and the rotation of the motion of control arm Axle 13 rotates together, and therefore raises and reduce by a pair volumes, a volume in the pair of volume by tail bracket 21,38 by Arm 15,35 is carried, and another volume is carried by tail bracket 40,29 by arm 35,17.

Intermediate arm 35 can also pass through inoperative position, and in the position, it is still attached to axle 13, but is maintained at and is not done with rolling up In the region related to, in this case, it is supported by tail bracket 21,29 by arm 15,17.In Figure 5, the arm shown in left side 35 are in operating position, and the arm shown in right side is in inoperative position.In Fig. 1 axonometric drawing, anterior intermediate arm 35 is in Operating position, and the intermediate arm 35 at rear portion is in inoperative position.In Fig. 3 axonometric drawing, two intermediate arms 35 are not all in Operating position.It is in operating position it should be appreciated that the equipment is generally configured to arm 35 or is in inoperative position.

Therefore, in certain embodiments, intermediate arm 35 is hinged to rotary shaft 13, and more accurately, it is hinged to corresponding Sliding block 45, and intermediate arm further has confinement element, and it can selectively be activated or disabled so that intermediate arm 35 to be reversed about Beam to sliding block 45 and therefore torsional restraint to rotary shaft 13.

Therefore, in certain embodiments (referring specifically to Fig. 5,7,8 and 9), provided with the first pin 55, it is inserted into and respective arms 35 integral bushing 35A and two through holes 46 being arranged in two flank 45A of sliding block 45.Therefore, arm 35 passes through hinge Sliding block 45 is connected to, axis is limited by the axis B-B of the first pin 55 (parallel to the axis A-A of rotary shaft 13) herein.It is additionally provided with The second removable pin 57, it, which is inserted into the second bushing 35B of arm 35 and is further inserted into, is arranged on flank 45A's In a pair of holes 48.

When two pins 55,57 be inserted into bushing 35A, 35B and hole 46,48 in when, the torsional restraint of arm 35 to sliding block 45.Then when the sliding block torsional restraint is to axle 13, the rotation of rotary shaft 13 result in the corresponding rotation of arm 35 and arm 15,17 Turn.

Vice versa, and when one in pin 55,57 is removed, arm 35 remains connected to axle 13 by simple hinge, because This it axis that can be surrounded relative to the axle parallel to axis A-A pivots.The state is suitable to arm 35 being maintained at not working position Put.In practice, in order to which the purpose, removable pin 57 are removed.For the ease of the operation, removable pin 57 can be preferred Ground is provided with shank 57A.

In order to which arm 35 is maintained at into inoperative position, there is tie-rod 61 on every side of fixed structure 3, the tie-rod is 63 Place is hinged to fixed structure 3, and is more specifically for example hinged to crossbeam 9.Each tie-rod 61 has the through hole in its far-end 67, for example, in the end relative with hinge 63.When corresponding arm 35 is in operating position, tie-rod 61 be not used and It can be vertically provided (referring to Fig. 1,5,6).When corresponding arm 35 is brought into and is maintained at inoperative position, it is relative to sliding block 45 Release is reversed, therefore reverses and discharges relative to rotary shaft 13, and is rotated on the axis B-B direction of pin 55, the pin is kept In it and retaining arm 35 is connected to sliding block 45 with certain free degree.Once reach upward turned position, corresponding system Bar 61 is just rotated up the hole 67 and hole 35C on arm 35 in the opening position close to the distal end of arm 35 (i.e. close around hinge 63 The opening position of tail bracket 38,40) alignment.For the ease of inserting pin 57, each tie-rod 61 can have guide bushing 61A, 61B (referring to Figure 10).Advantageously, guide bushing 61A, 61B be constructed such that pin 57 be only capable of from side insertion and can not be from opposite side Insertion.Therefore, pin 57 can have the tapered end relative with shank 57A.This causes the unexpected removal for greatly avoiding pin 57, It is such as disclosed below.

Advantageously, on crossbeam 9, protective bulkhead 71 can be provided with the side of each tie-rod 61.The position of protective bulkhead 71, arm 35 It is configured such that with the size of tie-rod 61 and the position in hole 35C and hole 67, pin 55 is surrounded according to f35 (Fig. 6) by arm 35 Axis B-B swing, hole 35C can be taken to the top of protective bulkhead 71, can also be by it by tie-rod 61 corresponding to rotation On hole 67 and corresponding guide bushing 61A, 61B take the top of wall 71 to.Once pin 57 has been inserted through hole 35C and guiding Bushing 61A, 61B, arm 35 are just reduced to the degree that the rotation of tie-rod 61 allows as much as possible.In final position, the handle of pin 57 Portion 57A is arranged between tie-rod 61 and wall 71.This is spaced apart relative to tie-rod 61 and removed to prevent the accident of shotpin 57.By this Mode, unexpected remove of pin 57 is impossible, and therefore can not possibly cause the reduction of arm 35.Pin 57 is only capable of passing through lifting (according to f35 swing) arm 35 is removed until that can touch shank 57A again.

Can handle the volume with axially different length using device described above, as Figure 11 plan in show Example., can be with the case where arm 35 is in inoperative position (Figure 11 left part) for example, by using arm 15,17 Volume B1 of the support with sizable axial length.Arm 15, the distance between 17 can be adjusted by actuator 51 to adapt it to Roll up B1 axial dimension A1.Vice versa, and two volumes B2, the B3 with relatively small axial size (A2, A3) can pass through three one The arm 15,17,35 of group supports simultaneously, as shown in Figure 11 right parts.The mutual distance of arm 15,17,35 can be by using actuating Device 51 transfer arm 15,17 adjusts, and intermediate arm 35 is pushed into correct position by volume B2, B3.

What the structure of the equipment to show in Figure 11 two half-unit constructs to another switching constructed from a kind of It is more prone to.In fact, It is not necessary to remove the arm or tail bracket of equipment.Also It is not necessary to move towards each other two arms, And reduce the useful length of machine.It is sufficient that progress described below.Corresponding to should be brought into inoperative position Between arm 35, axle 13 rotates, to raise all arms 15,17,35.Once reaching upper position, operator removes removable pin 57 And be inserted into guide bushing 61A, 61B of tie-rod 61, manually by tie-rod 61 and intermediate arm 35 be brought into bushing 61A, 61B with The position of the hole 35C alignments of arm.Once being already inserted into pin 57, arm 35 remains in elevated position, and shank 57A is due to protective bulkhead 71 can not be accessible.

At this point, equipment can normal operating, axle 13 is rotated around axis A-A, wherein arm 15,17 and the axle one Ground rotates.Vice versa, and intermediate arm 35 is maintained at retracted position.In fact, the position of pin 55 and hole 35C position and tie-rod 61 Put to be arranged such into length and cause, when axle 13 rotates around axis A-A, intermediate arm 35 performs oscillation and translation motion, Reason is on the one hand on the other hand its by tie-rod 61 and pin 57 and is connected to fixed structure by pin 55, sliding block 45 and axle 13. By the outside for the overall dimensions that arm 35 is remained to the volume supported by arm 15,17, for the random angle position of rotary shaft 13 Put and therefore perform the swing for any Angle Position of arm 15,17.Figure 12 A are diagrammatically illustrated by making rotary shaft 13 Two Angle Positions of the arm 15,17 for rotating and obtaining, and will by the double constraints by means of being limited by tie-rod 61 and pin 55 The corresponding roto-translative motion that intermediate arm 35 is maintained at inoperative position and obtained.Figure 12 B are shown to be supported by arm 15,17 Volume B, intermediate arm 35 is in inoperative position.It should be noted that for the various Angle Positions of arm 15,17, and therefore for rolling up B Various positions, the latter can never interference with intermediate arm 35.

In order to bring intermediate arm 35 into operating position, opposite operation should be performed.

When equipment is configured to unwind two parallel coaxial volumes simultaneously, two sheet materials can be in the production line of take-off device Downstream it is moved closer together in known manner.Then the two sheet materials are sheared along longitudinal edge and are provided to example Such as one side scraper or two-sided scraper, more sheet materials are combined by gluing mode herein.Longitudinal shear thing should be removed, Therefore, provide the suction nozzle that can be adjusted according to the width of sheet material.Two external suctions draw outward flange cutting object.Central suction nozzle Draw two central cutting objects.

When the equipment is configured to supply the single sheet material from single volume, the material is by longitudinal shear and only needs Two lateral suction nozzles are wanted to draw and remove the cutting object of both sides.

Reference picture 11, two kinds of operator schemes are in left part (single volume B1, single sheet material N) and right part (two volumes B2, B3, two sheet materials N2, N3) show.Three suction nozzles BA1, BA2, BA3 are schematically shown in the same figure.Lateral suction nozzle BA1 and BA2 draws cutting object R1, R2 of the sheet material N1 from single volume.In this case, suction nozzle BA3 is not operated.When two When sheet material N2, N3 are by parallel unwinding, the central suction nozzle BA3 is activated.In this case, sheet material N2 cutting object R3, R4 quilt Suction nozzle BA1 and BA3 are drawn.The cutting object R5 and R6 formed on sheet material N3 passes through central suction nozzle BA3 and lateral suction nozzle BA2 respectively It is drawn.

When unwinding equipment 1 is configured to the single volume that unwinding is supported by arm 15,17, in order to avoid central suction nozzle BA3 is hampered Hindering sheet material N1 supply, there is provided the plate positioned at the downstream of unwinding equipment, for the slip of sheet material, the plate has center window, in Centre beneath window is disposed with the 3rd suction nozzle BA3.Window selectively has closing and open system.Figure 13 and 14 respectively illustrates For the sliding panel P of sheet material and again with the side view and plan of BA1, BA2, BA3 suction nozzle represented.The supply direction of sheet material Represented with fN.In certain embodiments, central suction nozzle BA3 can be arranged on the supply direction fN of sheet material relative to suction nozzle BA1 and BA2 front.

In certain embodiments, at least suction nozzle BA1 and BA2 can be adjusted on the direction for being approximately perpendicular to supply direction fN It is whole.

Advantageously, window 91 is provided with along the sliding panel P for sheet material, the window can close by opening and closing system 92 Close.The system can be included for example by being rotated the single door to open around horizontal axis C-C, and the horizontal axis is favourable Supply direction fN of the ground transverse to sheet material.

In other preferred embodiments, the opening and closing system 92 for window 91 includes multiple independent of each other open Open and closing element 93.Each element 93 that opens and closes can be hinged around axis of pitch C-C.In addition, each open and close Element 93 can be provided with actuator 95, and the actuator is used to control opening and closing element 93 to surround axis independently of other C-C swing.This allows to open the suction windows above centrally located suction nozzle BA3, and its cross sectional dimensions and/or lateral attitude can Optionally it is adjusted according to cutting object R4, R5 (Figure 11) size and/or lateral attitude.

The embodiment shown in described above and accompanying drawing has been explained as the real example of the present invention. It should be understood by those skilled in the art that any, to change, deform, increase and delete all be possible, without departing from appended right Principle of the invention, design and the teaching limited in it is required that.The scope of the present invention therefore should be according to appended claims most Wide explanation is uniquely identified, and these are changed, deform, increase and deleted and are also included within the range of this.Term " comprising " or class Like the other elements and step expressed beyond the element for being not excluded for being expressly recited in claim and step.It is first in claim " one " before part, mechanism and feature is not excluded for the presence of multiple elements, mechanism and feature.An if equipment claim It is claimed multiple " means ", can partly or entirely be activated by single component, element or structure in these " means ".It is different Dependent claims in the explanation that provides element, structure or device is not excluded for the element, structure or device are combined Possibility together.When claim to a method lists series of steps, if specific order is fixed, row without explanation The order of these steps gone out is unfixed and can changed.Any reference marker provided in appended claims be for Be easy to reference to specification and drawings reading right requirements, be not the protection domain to being embodied in claim limitation.

Claims (19)

1. a kind of unwinding equipment, it includes：Fixed structure；The rotation for rotating around rotation axis and being carried by the fixed structure Rotating shaft；First arm and the second arm, first arm and the second brachiostrophosis are tied to the rotary shaft with together with the rotary shaft Rotation；The arm of centre the 3rd being arranged between first arm and second arm；Supporting construction can be pivoted to and can be hinged To the tie-rod of the 3rd arm；3rd arm is tied to the confinement element of rotary shaft, the confinement element is configured to：To by the 3rd Brachiostrophosis is tied to rotary shaft so that the 3rd arm integratedly rotates with the first arm and the second arm；And selectively the 3rd arm is led to The attachment means for crossing hinge type are connected to rotary shaft.

2. equipment according to claim 1, wherein：

First arm and the second arm are respectively arranged with the first joint element and the second joint element and arranged between them with engaging Sheet material is rolled up；

3rd arm is provided with the first middle engagement element and the second middle engagement element relative to each other.

3. equipment according to claim 1, wherein tie-rod be arranged to close to the distal end of the 3rd arm by the 3rd Arm is connected to fixed structure.

4. equipment according to claim 2, wherein tie-rod be arranged to close to the distal end of the 3rd arm by the 3rd Arm is connected to fixed structure.

5. equipment according to claim 1, wherein the tie-rod is hinged to fixed structure with around the rotation with rotary shaft The substantially parallel axis of axis pivots.

6. equipment according to claim 2, wherein the tie-rod is hinged to fixed structure with around the rotation with rotary shaft The substantially parallel axis of axis pivots.

7. equipment according to claim 3, wherein the tie-rod is hinged to fixed structure with around the rotation with rotary shaft The substantially parallel axis of axis pivots.

8. equipment according to claim 4, wherein the tie-rod is hinged to fixed structure with around the rotation with rotary shaft The substantially parallel axis of axis pivots.

9. equipment according to claim 1, wherein including first for the confinement element that the 3rd arm is connected to rotary shaft Pin and the second pin, a pin in first pin and the second pin are configured to removable pin so that the removable pin can be from Extracted out in the seat being connected with each other between arm and rotary shaft, and first pin and another pin-shaped in the second pin are into for even Connect the 3rd arm and the hinge of rotary shaft.

10. the equipment according to any one of claim 2 to 8, wherein the constraint for the 3rd arm to be connected to rotary shaft Element includes the first pin and second and sold, and a pin in first pin and the second pin is configured to removable pin so that this can Removing pin can extract out from the seat being connected with each other between arm and rotary shaft, and another in first pin and the second pin Pin-shaped is into the hinge for connecting the 3rd arm and rotary shaft.

11. equipment according to claim 9, wherein the removable pin is configured to connect the 3rd arm and institute State tie-rod.

12. according to the equipment any one of claim 1 to 9 and 11, wherein intermediate slider is installed on the rotary shaft, should Intermediate slider can be along the rotary shaft axially movable and the intermediate slider torsional restraint is to rotary shaft.

13. equipment according to claim 12, wherein the 3rd arm is hinged to intermediate slider and can be optionally Torsion is joined to the intermediate slider.

14. equipment according to claim 13, wherein the confinement element includes removable pin, the 3rd arm is turned round Turn to be joined to the intermediate slider.

15. equipment according to claim 14, wherein the removable pin is designed to in the tie-rod and described Hinge type connection is provided between the 3rd arm.

16. according to the equipment any one of claim 1 to 9 and 11, wherein first arm and second arm can Moved along rotary shaft to adjust their axial location.

17. a kind of unwinding equipment, for unwinding sheet material volume, the unwinding equipment includes：

Fixed structure；

At least the first arm and the second arm, first arm and second arm are respectively arranged with the first joint element and the second engagement Element, rolled up with the sheet material engaged between them, first arm and second arm can relative to the fixed structure Being moved to from raised position reduces position；

3rd arm, the 3rd arm are arranged in the centre position between the first arm and the second arm, and are provided with relative to each other One middle engagement element and the second middle engagement element；Wherein described 3rd arm can move to from raised position reduces position；

Confinement element, the confinement element is used to the 3rd arm being tied to the axle around rotation axis rotation, with control the 3rd The rise of arm and reduction motion, the confinement element are configured to selectively：The 3rd brachiostrophosis is tied into rotary shaft, So that rotary shaft surrounds the axis rigid rotating of rotary shaft together with the 3rd arm；And the 3rd arm is kept to be hinged to rotary shaft；

Tie-rod, the tie-rod is used to the 3rd arm being connected to fixed structure, so that proper 3rd arm is hinged to rotary shaft and tie-rod When, the 3rd arm is maintained at retracted position relative to the volume supported when rotary shaft rotates by the first arm and the second arm.

18. equipment according to claim 17, wherein first arm and second brachiostrophosis are tied to the rotation Axle.

19. a kind of unwinding equipment, for unwinding sheet material volume, the unwinding equipment includes：Fixed structure；At least one rotary shaft, First arm and the second brachiostrophosis are tied to the rotary shaft, and first arm and the second arm have the first joint element and the respectively Two joint elements are rolled up with engaging the sheet material between them；3rd arm, the 3rd arm are disposed in the first arm and the second arm Between centre position, be provided with the joint element for volume, and be joined to rotary shaft；For the 3rd arm to be tied into rotation Confinement element on axle, the confinement element are configured to selectively：

- the 3rd brachiostrophosis is engaged and arrives rotary shaft, to cause the 3rd arm to be revolved together with rotary shaft, the first arm and the second arm Turn；And

- keep the 3rd arm to be hinged to rotary shaft；

The unwinding equipment also includes connecting element, and the 3rd arm is connected to fixed structure by the connecting element, so that proper When three arms are hinged to rotary shaft and are connected to fixed structure, the 3rd arm revolves relative to when rotary shaft together with the first arm and the second arm Retracted position is maintained at by the volume that the first arm and the second arm support when turning.