CN107872999A

CN107872999A - Tire assembly drum

Info

Publication number: CN107872999A
Application number: CN201680036098.3A
Authority: CN
Inventors: 维斯卡多·巴尔多尼; 弗拉维奥·鲍斯考勒
Original assignee: Marangoni Meccanica SpA
Current assignee: Marangoni Meccanica SpA
Priority date: 2015-05-05
Filing date: 2016-05-05
Publication date: 2018-04-03
Also published as: KR20180022657A; WO2016178180A1; EP3291977A1; EA201792432A1

Abstract

A kind of tire shaping apparatus (1) is included by two and half drums (7,8) drum (2) formed, the two half drums are mirrored into relative to the central plane (4) of drum (2), can moving axially relative and angularly be connected to corresponding axle (5,16), to be equipped with around common axis (3) rotation, described device (1)：First actuation means (6), it is used to make drum (2) rotate around axis (3) and continuously changes the distance between two and half drums (7,8)；And second actuation means (39), it is used to make drum (2) radial motion between maximum radial deployment configuration and maximum radial contracted configurations, first actuation means (6) are placed on the outside of drum (2), will pass through corresponding axle (5,16) relative telescoping movement makes half drum (7,8) it is axially moved, and the second actuation means (39) are arranged on drum (2) and can be independently of the first actuation means (6) and independently of two and half drums (7,8) operated outside the motion of axle (5,16).

Description

Tire assembly drum

Technical field

The present invention relates to a kind of tire assembly drum.

More particularly it relates to a kind of tire assembly drum, it include can radial folding and expansion type into Type drum (also referred to as " positivity " drum).

Background technology

In the prior art, the assembly drum of the above-mentioned type is generally made up of two and half drums, and the two half drums are arranged on vertical In the opposite sides of the center line plane of bulging rotation axis, and be each provided with can be from radial development position and radial folding Corresponding multiple sections of position setting in motion, it is molded over thereon as the overall carcass that limits in radial development position zone , the continuous outer surface of drum, and can be axially removed in radial folding position carcass from drum.

In order to allow to be molded the tire of different in width, positivity drum must also can adjust in the axial direction.In this case, should Drum includes being arranged between the section group of two and half drums and limiting one group of center of the center annular band of the outer surface of the drum Section.In some drums, being adjusted axially for drum is by dismantling central section and replacing them with the section of different in width come manually Realize.For example, describe such drum in US5,320,701 and US3,817,812.

Although being simple from the point of view of mechanical angle, main the shortcomings that can recognize that this scheme is brought, is to change Central section needs relatively long downtime, and needs the storeroom of the central section for a large amount of different in width.

That many is used to overcome these scheme in the prior art be present, these schemes generally consider to pass through in good time Actuator devices make central section keep axially static and make two and half drums while automatically move in the opposite direction, from And provide continuously adjusting to bulging overall width.

For example, such scheme is described in EP1286827.

Although newer technical scheme has been able to overcome most of shortcoming of traditional drum, what is be currently known can be radially The drum for moving and being adjusted axially using automatic system only allows to perform limited axial direction repositioning, is generally used only for being molded over The taking-up process of carcass on drum.

The content of the invention

It is an object of the invention to provide a kind of improved tire shaping apparatus, the device can realize that wide in range axial direction is fixed again Position, this allows continuously to adjust tyre width in production and adjusts above-mentioned width also without center spacer element.

According to the present invention, there is provided the tire assembly drum described in a kind of claim 1, it is preferable to provide direct or indirect subordinate The tire assembly drum described in any one accompanying claims in claim 1.

Brief description of the drawings

The present invention is will now be described with reference to the attached figures, accompanying drawing shows some non-limiting embodiments, wherein：

Fig. 1 shows the preferred embodiment of the apparatus according to the invention with side view and partial sectional view, wherein rousing quilt It is arranged to the construction of axial full extension；

Fig. 2 shows that Fig. 1 device is in different operating construction, i.e. drum is configured to the construction axially folded completely；

Fig. 3 and Fig. 4 each illustrate Fig. 1 drum be in radial development construction and radial contraction construction stereogram, wherein For the sake of clarity remove some parts；

Fig. 5 shows the side view of Fig. 1 or Fig. 2 drum；

Fig. 6 and Fig. 7 shows that Fig. 5 drum is in respectively different operative configuration；

The drum that Fig. 8 a are illustrated Fig. 1 with the ratio amplified is in radial development and axially expanded construction (the bulging first half Point) and construction (bulging the latter half) in radial development and axial shrinkage；

The drum that Fig. 8 b are illustrated Fig. 1 with the ratio amplified is in radial contraction and axially expanded construction (the bulging first half Point) and construction (bulging the latter half) in radial contraction and axial shrinkage；

Fig. 9 is the section of IX-IX interceptions along Fig. 8 a drum；

Figure 10 is the section of X-X interceptions along Fig. 8 b drum；

Figure 11 is the section of XI-XI interceptions along Fig. 9 drum；

Figure 12 is the section of XII-XII interceptions along Figure 10 drum；

Figure 13 shows that Figure 12 drum is arranged in radial development structure on the left side of bulging central plane in upper part Make and radial folding construction is configured on the right of central plane；Also, shown in lower part and be in identical with upper part The modification of Figure 12 of operative configuration drum；

Figure 14 shows Fig. 2 part roused and specifically illustrate radial actuation mechanism with side view, wherein for Some parts are removed for the sake of clear；

Figure 15 shows Fig. 1 part roused and specifically illustrate above-mentioned radial actuation mechanism with side view, its In for the sake of clarity remove some parts；

Figure 16 shows Figure 14 or Figure 15 details；

Figure 17 and Figure 18 shows the details of the drum of Figure 12 in respectively different operative configuration；

Figure 19 and Figure 20 diagrammatically illustrates two operational phases of the drum of the present invention；And

Figure 21 and Figure 22 each illustrates the modification of the device of Fig. 1 and Fig. 2 in corresponding operative configuration.

Embodiment

In Fig. 1, reference 1 represents tire shaping apparatus (not shown) as overall.

Device 1 includes drum 2, and the drum 2 has longitudinal axis 3 and perpendicularly to the longitudinal axis 3 central plane or center line 4 simultaneously And on the free end of central shaft 5, the central shaft 5 is coaxial with longitudinal axis 3 and to limit the rotation of actuating unit 6 defeated Go out component.

Drum 2 for can radial folding type, i.e. it is constructed such that it can be by way of being described in detail below in footpath Moved between expanded position and radial folding position, in radial development position, there is drum carcass 2a to be molded in use Thereon, continuous cylindrical outer surface, in radial folding position, carcass 2a can be axially removed (Figure 19 from drum 2 And Figure 20).

Except can be in addition to radial motion, drum 2 be further configured to be adjusted axially by continuous mode so that it can be in Existing different width, and therefore allow the tire for being molded various width.

Drum 2 includes two and half drums 7 and 8, and the two half drums 7 and 8 are configured to be in mirror-bit relative to central plane 4 Put, be coaxial with longitudinal axis 3 and can be relative away and towards central plane along longitudinal axis 3 in the presence of actuating unit 6 In being axially moved each other.

Especially, as shown in figure 1, and as shown in more detail Fig. 8 a and Fig. 8 b, half drum 7 by tubular body 9 be mounted On central shaft 5, the tubular body 9 is coaxial with longitudinal axis 3 and has in an axial end portion rigidly solid by screw The annular transverse walls 10 being scheduled in the distal portion of central shaft 5.In axially opposing end, tubular body 9 has spline inner surface, It is angularly connected to the spline part 11 of central shaft 5.

Therefore, tubular body 9 is integrally formed axially and angularly with central shaft 5.

Half drum 8 includes tubular body 12 again, and the tubular body 12 is coaxial with longitudinal axis 3 and interior table by means of tubular body 12 Spline connection 13 between face and the spline part 11 of central shaft 5 is connected by way of sliding axially and angularly fixing To central shaft 5.

Tubular body 12 has annular flange 14 at it towards the axial end portion of the outside of drum 2, and the annular flange 14 will manage Shape body 12 is rigidly connected to the annular flange 15 being integrally formed with sleeve 16, and sleeve 16 is coaxial with longitudinal axis 3 and passes through In axial sliding mode be connected to central shaft 5, reach the part of the outside of drum 2.

The function of actuating unit 6 is drum 2 is rotated around longitudinal axis 3 and make half drum 7 and 8 along longitudinal axis Line 3 carries out being adjusted axially motion.

As depicted in figs. 1 and 2, actuating unit 6 includes framework 17, and the framework 17 is supported by bottom plate (not shown), and Including the side wall 18 coaxial with longitudinal axis 3 and it is transverse to two end walls 19 and 20 of longitudinal axis 3.

End wall 19 towards drum 2, and by the interventions of bearing supports 21 by it is rotatable and in axial sliding in a manner of support Sleeve 16.

Actuating unit 6 via motor 23 to drum 2 apply rotary motion, motor 23 by belt 24 be angularly connected to The belt pulley 25 that bearing supports 21 are integrally formed and are therefore integrally formed with sleeve 16.By this way, rotary motion passes through Belt pulley 25 is transferred to sleeve 16, and is transferred to central shaft 5 from sleeve 16 by spline connection 13；Central shaft 5 and sleeve Rotary motion is then each transferred to half drum 7 and half drum 8 by 16.

Axial location of half drum 7 and 8 along longitudinal axis 3 is adjusted by actuator devices 26, the actuator devices 26 are formed A part for actuating unit 6, and be designed to apply relative telescoping movement to central shaft 5 and sleeve 16 along longitudinal axis 3.

In the example shown in Fig. 1 and Fig. 2, actuator devices 26 are constructed such that central shaft 5 and sleeve 16 opposite Moved simultaneously on direction, so that position of the central plane 4 along longitudinal axis 3 is kept fixing by the period that is adjusted axially in drum 2, together When half drum 7 and 8 moved away from or towards central plane 4.

Therefore, actuator devices 26 include annular slab 27, the annular slab 27 and longitudinal axis 3 are coaxial, are crossed by central shaft 5 And the free end of sleeve 16 is connected in a manner of rotatable and axial restraint the bearing 28 coaxial with longitudinal axis 3 Portion.Actuator devices 26 also include another annular slab 29, the annular slab 29 and longitudinal axis 3 be coaxial, crossed by central shaft 5 and Central shaft 5 is connected in a manner of rotatable and axial restraint the bearing 30 coaxial with longitudinal axis 3.

It is arranged on relative the two of parallel to end wall 19 and 20, framework 17 ring-like intermediate wall 31 mirror image of plate 27 and 29 Side, and rotatably crossed by central shaft 5.

Plate 27 has two through holes, and the two through holes each have the axis 32 parallel to longitudinal axis 3 and positioned at vertical To the opposite sides of axis 3.Each hole is engaged with corresponding guiding nut 33, and each guiding nut 33 is integrally formed simultaneously with plate 27 And engaged with corresponding screw rod 34, the screw rod 34 it is coaxial with corresponding axis 32 and together with associated guiding nut 33 shape Into corresponding guiding nut and threaded joints.

Similarly, plate 29 has two through holes, and each through hole is coaxial with corresponding axis 32 and guides spiral shell with corresponding Mother 35 engages, and each guiding nut 35 is integrally formed with plate 29 and engaged with one of screw rod 34, thus with it is associated Guiding nut 35 formed together corresponding to guiding nut and threaded joints.

Each screw rod 34 is supported end wall 19 and 20 and midfeather 31 in a manner of rotatable and axial restraint, in this Partition 31 divides two reverse thread portions on screw rod 34.Especially, screw rod 34 between end wall 19 and midfeather 31 Each part engages corresponding guiding nut 33, and screw rod 34 positioned at midfeather 31 and end wall 20 between it is each partly Engage corresponding guiding nut 35.

At end wall 20, each screw rod 34 is fitted with corresponding belt pulley 36, and the belt pulley 36 is another with being arranged on Another belt pulley 36 on one screw rod 34 is connected to motor 37 by belt or chain and sprocket driving device 38 together.Screw rod 34, skin Belt wheel 36, motor 37 and belt or chain and sprocket driving device 38 form actuating together with the plate 27 and 29 with guiding nut 33 and 35 A part for device device 26.

According to unshowned modification, actuator devices 26 only include a screw rod 34 and a belt pulley 37.

As shown in figure 1, drum 2 maximum axial stretch construction, i.e. between half drum 7 and 8 in the construction of distance maximum, plate 27 and 29 are positioned close to midfeather 31 along screw rod 34.If rotating screw rod 34 since the construction, the mirror of plate 27 and 29 Picture ground is away from each other and remote midfeather 31 moves.Due to sleeve 16 and plate 27 be integrally formed in the axial direction and central shaft 5 with Plate 29 is integrally formed in the axial direction, therefore the motion of plate 27 and 29 causes sleeve 16 to be translated towards central plane 4 and central shaft 5 Translated in the opposite direction in sleeve 16, half drum 7 and 8 moves toward each other and towards central plane 4 therewith.Fig. 2 is shown The construction that the maximum axial of drum 2 is shunk, wherein half drum 7 and 8 is bringing together.

As described above and as shown in Figure 3 and Figure 4, drum 2 can be in maximum radial deployment configuration (Fig. 3 and Figure 19) and maximum radial Moved between contracted configurations (Fig. 4 and Figure 20), drum 2 shows substantially continuous outer surface in maximum radial deployment configuration.

Therefore, half drum, 7 and 8 respective outer surface is radially subdivided into corresponding multiple sections, these sections are designed Diametrically to move to the maximum radial deployment configuration and from the maximum radial deployment configuration by actuator devices 39 Setting in motion, actuator devices 39 are arranged on drum 2 and are totally independent of outside actuating unit 6, are particularly totally independent of Two and half drums 7 and 8 are controlled along outside the actuator devices 26 of the axial location of longitudinal axis 3.

As shown in Fig. 4, Fig. 5, Fig. 6 and Fig. 7, in order to allow section to be folded completely in maximum radial contracted configurations and again Folded, half drum 7 and 8 each includes two groups of sections being arranged on around longitudinal axis 3 in alternate position：One group of circumferential narrower section 40 and one group of circumferentially wide section 41, when drum 2 folds, section 41 is moved after section 40, to reach in drum 2 Section 41 partly overlaps (Fig. 4, Fig. 6 and Fig. 7) with section 40 during maximum radial contracted configurations.

Especially, respective segments of each narrower section 40 of one of them half drum 7 or 8 with another half drum 8 or 7 40 axially align and including main part, and the main part is coaxial with longitudinal axis 3 and has in the corresponding axial end portion of drum 2 There is the anchor portion of the center curvature towards drum 2.

Respective segments 40 axial direction of each wider section 41 of one of them half drum 7 or 8 with another half drum 8 or 7 Align and including main part, the main part is coaxial to longitudinal axis 3 and corresponding axial end portion bearer connection in drum 2 Crooked end 42, as will be seen below, the crooked end 42 can relative to corresponding main part move and with it is same The crooked end of other sections 41 and the crooked end of section 40 of half drum limit the corresponding annular side of drum 2 together.

The central part of drum 2 is equally limited by multiple central sections 43, wherein each central section 43 is arranged on corresponding one To being axially aligned between section 40 or 41 and with this to section, and can be together with corresponding a pair of sections 40 or 41 radially On move to maximum radial deployment configuration and from maximum radial deployment configuration setting in motion (Fig. 3).

In embodiment shown in the drawings, half drum 7 and 8 each includes one group of 6 section 40 and one group of 6 section 41,12 sections altogether.This sum of section can be different.

As figures 8 a and 8 b show, section 40 and 41 is arranged on corresponding each via corresponding pantographic leverage 44 On half drum 7 or 8, the leverage 44 limit it is between section 40 and 41 and actuator devices 39, for make section 40 and A part for the drive mechanism of 41 radial motions.

Half drum, 7 and 8 respective leverage 44 includes a pair of levers 45 and 46, and they are mutually hinged, so as to through vertical Vibrated on to the sagittal plane of axis 3 around corresponding axis 47, and corresponding section 40 or 41 is passed through into half drum 7 or 8 Attachment means common to all leverages 44 are each attached to tubular body 9 or 12.

Especially, axle that is coaxial and being rigidly connected to tubular body 9 is included with longitudinal axis 3 on half drum 7, attachment means The collar 48 and center coaxial with longitudinal axis 3 and that tubular body 9 is arranged on by mode in axial sliding to free end The collar in portion, the collar are made up of two collars 49a and 49b, and the two collars 49a and 49b are physically separate from each other, and It is configured in maximum radial deployment configuration and maximum radial contracted configurations be in contact with each other (Figure 14 and Figure 15).The institute of half drum 7 The lever 46 for having corresponding leverage 44 all has an end of the collar 48 for being hinged to axial restraint and by pin 51 It is hinged to the relative end of the interior spine 50 of corresponding section 40 or 41, hinge of the pin 51 parallel to corresponding leverage 44 Spindle line 47 and engaged by way of sliding laterally manufacture in section 40 or 41 and parallel to the groove of longitudinal axis 3 52；The lever 45 for being connected to section 40 is hinged to the spine 50 of corresponding section 40 an end and in relative end Place is hinged to collar 49a, and the lever 45 for being connected to section 41 is hinged to the spine 50 of corresponding section 41 an end And it is hinged to collar 49b in relative end.

Except the collar 48 of axial restraint in this case and collar 49a and 49b are connected to sleeve in axial sliding Outside 16, the above-mentioned setting of half drum 7 is applicable for half drum 8.

As shown in Figure 8 and Figure 9, actuating unit 39 includes the multiple motor 53a (Figure 15) carried by support ring 53, preferably For air motor, the support ring 53 is located on central plane 4 and the spline of central shaft 5 is connected to by mode in axial sliding Portion 11.Motor is evenly distributed around longitudinal axis 3 and each includes output shaft, and the output shaft can be surrounded parallel to longitudinal axis The respective axis of line 3 rotates and carries little gear 54 (Fig. 9), and little gear 54 engages with cogwheel 55, and the cogwheel 55 surrounds Rotated parallel to the corresponding axis 56 of longitudinal axis 3.

Cogwheel 55 is arranged on the pipe 57 that is integrally formed with ring 53, coaxial with axis 56 and be internally carved with spline. Cogwheel 55 divides two equal parts on pipe 57, wherein each part by mode in axial sliding with and axis 56 it is same The splined end 58 of the respective drive screw rod 59 of axle engages.In the end relative with splined end 58, each drive screw 59 Shank with non-threaded, the shank is in the case where drive screw 59 is a part for half drum 7 by the intervention of bearing with can The mode of rotation and axial restraint is supported in the annular flange 60 of tubular body 9, or in one that drive screw 59 is half drum 8 It is supported in the case of part on the flange 14 of tubular body 12.

Between spline part 58 and the shank of support, each drive screw 59 includes threaded portion 61, and the threaded portion 61 engages The guiding nut 62 being integrally formed with the collar 49a or 49b.Drive screw 59 is preferably the known type with limiting guiding nut 62 Internal thread connection circulation ball-screw.

It can be drawn from above, in use, pass through the rotation of pipe 57, the rotation by the motor 53a drive screws 59 driven Quote guiding nut 62 to translate along axis 56, and therefore cause collar 49a or 49b to be translated along axis 56.According to drive screw 59 direction of rotation, the collar 49a or 49b will be far from or moved towards central plane 4, rotate lever 46, therewith pantographic thick stick Linkage 44 stretch or close and section towards drum 2 outside or inside radial motion.

In shown example (Fig. 9), actuating unit 39 includes 4 motor 53a, and two of which is diametrically opposite each other Motor operates 6 sections 40 of the drum 8 of 6 sections 40 and half of half drum 7, and two other also motor operation diametrically opposite each other 6 sections 41 of the drum 8 of 6 sections 41 and half of half drum 7.

On this point, as long as suitably pointing out in order to which two motors of the purpose are with regard to much of that, one of them is used to operate two The section 40 of individual half drum 7 and 8, another is used for the section 41 for operating two and half drums 7 and 8., must during the radial contraction of drum 2 Motor 53a operation must be carried out, to be connected to two collar 49a motor 53a by corresponding by drive screw 59 Drive screw 59 be connected to two collar 49b motor 53a before run.By this way, transported by collar 49a axial direction The section 40 driven is moved in terms of the radial motion towards longitudinal axis 3 prior to section 41, so as to avoid interference in maximum radial In contracted configurations with the partly overlapping section 41 of section 40.

As is illustrated by figs. 11 and 12, during maximum radial contracted configurations are moved to from maximum radial deployment configuration, in area When section 41 starts overlapping with section 40, the crooked end 42 of section 41 towards drum 2 external movement, so as not to disturb section 40 Crooked end.In this way it is possible to reduce diametral interference of the section in end regions, therefore the good of above-mentioned section is obtained Good radial direction matching, and therefore obtained small diameter of the drum 2 in radial-contraction position.

Therefore, each crooked end 42 is connected to corresponding leverage 44 by means of lever 63, the lever 63 is corresponding Leverage 44 hinge axes and the crooked end 42 that is discussed between extend, so as to will during the radial contraction of drum 2 Crooked end 42 pushes out and makes its retraction during the radial development of drum 2.

As shown in Figure 12 and Figure 13, crooked end 42 is connected to the main part of section 41 by selling equipment 64 accordingly, should Equipment 64 is sold parallel to longitudinal axis 3, between the spine 50 of section 41 and crooked end 42 to extend and in the work of lever 63 Crooked end 42 is forced to be axially toward and moved away from central plane 4 under.

Modification according to Figure 13 the latter half, crooked end 42 are connected to section by corresponding hinge apparatus 65 41 main part, the hinge apparatus 65 force crooked end 42 to surround the phase for being transverse to longitudinal axis 3 in the presence of lever 63 Answer axis to rotate, make it away from longitudinal axis 3 and move.

As shown in Figure 8 and Figure 9, each central section 43 is supported by a pair of sections 40 or 41, a pair of sections 40 or 41 Axially aligned by two bars 66 with central section 43, wherein each bar 66 it is parallel with longitudinal axis 3 and be sliding engaged with The corresponding hole made on the rib 67 that central section 43 is integrally formed.Each bar in two bars 66, which also has, passes through fixation An end in the hole made in the spine 50 for the section that mode is engaged in two sections, and be sliding engaged in Relative end in the hole made in the spine 50 of another section in two sections.Result is each central section 43 Two bars 66 be each one and with it is in axially upper two sections adjacent with central section 43, carry two bars 66 another section is integrally formed.

In addition to central section 43 is supported and constrained on the associated section 40 or 41 aligned, with center The associated paired bar 66 of section 43 further defines center device 68, and the centring means 68 is designed to ensure that the axle in half drum 7 and 8 Always it is to maintain centered on central plane 4 to central section during motion 43.

Therefore, as shown in figure 17, each bar being connected in two bars 66 of central section 43 has been both provided with teeth portion 69, this has the synchronizing wheel 70 that has teeth portion 69 and be rotationally mounted to corresponding rib 67 on of the teeth portion 69 towards another bar 66 Engagement, to be rotated around with the orthogonal corresponding axis of longitudinal axis 3.It can draw, when two and half drums, 7 and 8 remote or court When being axially moved to central plane 4, the section 40 or 41 axially aligned for each pair, synchronizing wheel 70 ensures one in two and half drums The axial movement of the section 40 or 41 of individual half drum it is all identical with the axial movement of the section 40 or 41 of another half drum 8 or 7 and It is mirrored into, and thereby, it is ensured that the corresponding remains stationary of central section 43 and centered on central plane 4.

As shown in Figure 14, Figure 15 and Figure 16, drum 2 also includes another centring means 71, and the centring means 71 has and ensured Center ring 53 is adjusted axially function of the period relative to the axial distance holding center of tubular body 9 and 12 drum 2.

Centring means 71 plays similar effect with centring means 68, and is included in the collar being integrally formed with half drum 7 The multipair bar 72 extended between 48 and the collar 48 that is integrally formed with half drum 8.In shown example (Fig. 9), drum 2 includes 4 pairs Bar 72, but their quantity can be with more or less.

Each a collar corresponding with two collars 48 is integrally formed bar 72 in each pair bar 72, and including with What synchronizing wheel 74 engaged has teeth portion 73 accordingly, and the synchronizing wheel 74 is supported by ring 53 and in two tubular bodies 9 or 12 The surge motion control of a tubular body another tubular body 12 or 9 corresponding, equal axle in the opposite direction be present To motion, while central plane 4 is kept to fix.

The operation of device 1 can be expressly understood by above description, and not need further explanation.

Figure 21 and Figure 22 shows the modification of the device 1 shown in Fig. 1 and Fig. 2.According to the modification, by only making two and half One and half drums in drum 7 and 8 are axially moved and keep another half drum static to carry out being adjusted axially for drum 2, and therefore, center is put down Axial location of the face 4 along longitudinal axis 3 can change according to the axial width of drum 2.

The essence of device 1 and the device in Fig. 1 and Fig. 2 in Figure 21 and Figure 22 the difference is that only actuator devices 26 Structure, in this case, actuator devices 26 are configured to only move central shaft 5 during bulging be adjusted axially, and Therefore half drum 7 is moved, so as to which retaining sleeve 16 is static, and therefore keeps half drum 8 static.

Therefore, for previous example, actuator devices 26 only include the plate 29 being integrally formed with central shaft 5, and are not present The plate 27 being integrally formed with sleeve 16, and sleeve 16 by the bearing supports 21 on the end wall 19 of framework 17 with can The mode of rotation and axial restraint is supported.Plate 29 is connected to screw rod 34, and screw rod 34 only has a screw thread in this case Portion.

The structure of drum 2 keeps identical in the above example.It should be noted that in the drum of central plane with variable position In the case of, centring means 68 and centring means 71 also continue to perform and are assigned to their function, i.e. with the only axle of half drum 7 To motion, it is ensured that central section 43 is kept centered on central plane 4 and tubular body 9 and 12 keeps equidistant with central plane 4 From.

In fact, reference picture 17 and Figure 18, the axial movement for the collar 48 being integrally formed with tubular body 9 causes and the collar 48 The axial movement for the bar 72 being integrally formed.Due to the bar being integrally formed with another collar 48 (it is integrally formed with tubular body 12) 72 are fixed, therefore the synchronizing wheel 74 being integrally formed with ring 53 makes ring 53 and therefore makes central plane 4 flat with tubular body 9 The translation for the half for entering the translation that row distance is the tubular body 9 along longitudinal axis 3 is moved on identical direction, so as to cause tubulose Body 9 and 12 keeps equidistant with central plane 4.

Similarly, the axial movement of the section 40 and 41 of half drum 7 also causes corresponding bar 66 to be axially moved, and with half drum 8 The bar 66 that is integrally formed of section 40 and 41 be held axially fixed.Therefore, the synchronization being integrally formed with corresponding central section 43 Wheel 70 is engaged on fixed bar 66, and makes central section 43 in the axial movement identical side of the section 40 and 41 with half drum 7 Enter the axial movement of the half of axial movement of the row distance for the section 40 and 41 of half drum 7 upwards, so as to cause center Section 43 is kept centered on central plane 4.

Claims

1. a kind of tire shaping apparatus (1), it includes drum (2), and the drum has axis (3) and including two and half drums (7,8) And two axles (5,16) coaxial with axis (3), half drum are each angularly connected to corresponding axle (5,16), so as to Rotated together around axis (3) with axle (5,16), half drum (7,8) is mirrored into relative to the central plane (4) of drum (2), can be axial Ground relative motion and the multiple sections (40,41) for each including the outer surface as overall restriction drum (2), the tire building Device (1) includes：First actuation means (6), it is used to make drum (2) rotate around axis (3), and continuously changes two and half The distance between drum (7,8) rouses the axial width of (2) so as to adjust；And second actuation means (39), it is used to make section (40,41) radial motion so that drum (2) is presented maximum radial deployment configuration and maximum radial contracted configurations, the tire into Type device (1) is characterised by, half drum (7,8) each with corresponding axle (5,16) axial restraint, and the first actuation means (6) The outside of drum (2) is arranged on, is axially moved half drum (7,8) will pass through the relative telescoping movement of corresponding axle (5,16), and And second actuation means (39) be arranged on drum (2) on and can be independently of outside the first actuation means (6) and independently of two Operated outside the motion of the axle (5,16) of individual half drum (7,8).

2. tire shaping apparatus according to claim 1, wherein, the second actuation means (39) include driving equipment (53a) With mechanical driving device (59,44), the mechanical driving device is arranged between driving equipment (53a) and section (40,41) simultaneously And including for making scaling apparatus (44) of the section (40,41) relative to axis (3) radial motion.

3. tire shaping apparatus according to claim 2, wherein, half drum (7,8) each includes alternately setting around axis (3) Corresponding first section (41) put and the second section (40), driving equipment (53a) comprise at least related to the first section (41) Connection the first motor and comprise at least second motor associated with the second section (40), the first motor and the second motor can be grasped Simultaneously move corresponding first section (41) and the second section (40) as respective, and during the radial contraction of drum (2) The first section (41) is set to be moved after the second section (40).

4. tire shaping apparatus according to claim 3, wherein, the first motor and the second motor are pneumatic type, preferably For compressd-air motor.

5. the tire shaping apparatus according to claim 3 or 4, wherein, scaling apparatus (44) for the first section (41) and Each in second section (40) includes scaler (44), and the scaler is angularly connected to corresponding axle (5,16) And including mutually hinged so as to relative to two levers of axis (3) radial motion, the first section of same half drum (7,8) (41) scaler (44) and associated by the second section (40) each partly rouses corresponding first section (41) of (8,7) with another It is mirrored into the scaler (44) associated by corresponding second section (40) relative to central plane (4).

6. tire shaping apparatus according to claim 5, wherein, scaler (44) each includes two levers (45,46), The lever each has the radial inner end for the axle (5,16) for being hinged to corresponding half drum (7,8) and is hinged to corresponding area Its radially outer end of section (40,41), the first radial inner end in two radial inner ends in same scaler (44) lead to The mode for crossing axial restraint is connected to corresponding axle (5,16), and the second radial inner end therein passes through side in axial sliding Formula is connected to corresponding axle (5,16) and is connected to driving equipment (53a), to be transported along axis (3) to the first radial inner end Move and from the first radial inner end setting in motion and cause corresponding scaler (44) to pack up or deploy.

7. tire shaping apparatus according to claim 6, wherein, half drum (7,8) each include corresponding tubular body (9, 12), the tubular body is coaxial with axis (3), angularly and axially fixed with corresponding axle (5,16) and support and phase The scaler (44) that the section (40,41) for half drum (7,8) answered is associated, tubular body (9,12) each have：First annular company Socket part (48), it is fixed angularly and axially relative to tubular body (9,12), and corresponding scaler (44) is all First radial inner end is hinged to the first annular connecting portion；And the second annular connecting portion, it is by angularly fixing And mode is connected to tubular body (9,12) in axial sliding, and including two circumferential collars coaxial with axis (3) (49a, 49b), wherein, all second radial outer ends of the scaler (44) associated with the first section (41) of corresponding half drum (7,8) Portion is hinged to a collar (49b) in two collars, and associated with the second section (40) of same half drum (7,8) All second radial inner ends of scaler (44) be hinged to another collar (49a) in two collars.

8. tire shaping apparatus according to claim 7, wherein, the first motor is angularly connected to the first drive screw (59), first drive screw is parallel with axis (3) and has two axial end portions, the axial direction of the first drive screw End is connected to each via guiding nut and threaded joints in two collars (49a, 49b) of corresponding half drum (7,8) One, and wherein, the second motor is angularly connected to the second drive screw (59), second drive screw and axis (3) parallel and have two axial end portions, the axial end portion of the second drive screw is each via guiding nut and screw thread Connecting portion is connected to another in two collars (49a, 49b) of corresponding half drum (7,8).

9. the tire shaping apparatus according to any one of claim 3 to 8, wherein, drum (2) includes ring (53), the ring With axis (3) it is coaxial, on central plane (4), be angularly fixed on axle (5,16) and can be axially sliding along axis (3) Dynamic, the tire shaping apparatus (1) includes the first centring means (71), and it is used to make ring in the period that is adjusted axially of drum (2) (53) keep centered on central plane (4), centring means (71) includes：At least one pair of bar (72), the bar is each and axis (3) it is parallel and be integrally formed with corresponding axle (5,16)；And synchromesh gear (74), it is arranged on ring (53), so as to enclose There is teeth portion (73) to nibble around the pin rotation of axis (3) radial direction of drum (2) and two with each self-forming on corresponding bar (72) Close.

10. the tire shaping apparatus according to any one of claim 3 to 9, wherein, drum (2) includes the 3rd section (43), 3rd section each centered on central plane (4), with two adjacent the first sections (41) or the second section (40) axle To alignment and can radial motion together with which, the tire shaping apparatus (1) includes the second centring means (68), and it is used for Each 3rd section (53) is set to keep centered on central plane (4) in the period that is adjusted axially of drum (2), the second centring means (68) include for each 3rd section (43)：A pair of bars (66), the bar it is each parallel with axis (3) and with it is adjacent Corresponding first section (41) or the second section (40) in a pair of first sections (41) or the second section (40) are integrally formed；With And synchromesh gear (70), it is axially fixed on corresponding 3rd section (43), so as to around axis (3) radial direction of drum (2) Pin rotates and two with each self-forming on corresponding bar (66) have teeth portion (69) engagement.

11. the tire shaping apparatus according to any one of claim 5 to 9, wherein, the first section (41) each includes master Body portion and end (42), the end (42) bend towards the axis (3) of drum (2) and limit one of the respective side of drum (2) Point, the end (42) is each axially slidably connected to corresponding main part and is connected to corresponding first section (41) Scaler (44), so as to when scaler (44) moves to closing position from expanded position in the presence of scaler (44) from Axially retracted position moves to axially extended position.

12. the tire shaping apparatus according to any one of claim 5 to 9, wherein, the first section (41) each includes master Body portion and end (42), the end (42) bend towards the axis (3) of drum (2) and limit one of the respective side of drum (2) Point, the end (42) is each hinged to corresponding main part and is connected to the scaler of corresponding first section (41) (44), so as to when scaler (44) moves to closing position from expanded position in the presence of scaler (44) from it is corresponding Main part continuously reduces the external movement for being positioned against drum (2) to raised position.