阅读说明：本技术 一种高效三轴动态滚压装置 (High-efficient triaxial developments rolling press device ) 是由 李云开 庄剑南 于 2019-09-19 设计创作，主要内容包括：本发明公开的一种高效三轴动态滚压装置,安装在轮胎成型鼓的后方,包括一基板以及一固定在基板上的机架,机架顶面轨装一水平的台板,机架上还安装一用于驱动台板在机架上前后滑移的第一伺服传动机构；台板前部左右各安装一双控拨转装置；各双控拨转装置顶部安装一用于对轮胎胎胚进行整形的滚压轮装置；台板右后侧安装一用于同步致动两双控拨转装置以使两滚压轮装置对称地摆转的第二伺服传动机构；台板左后侧安装一用于同步致动双控拨转装置转动而使两滚压轮相对于台板上对称摆转的第三伺服传动机构；三个伺服传动机构配合可使滚压轮对由胎面向胎沿方向的轮胎胎胚表面进行连续滚压整形,大大提高了工作效率,又确保了轮胎成型的品质。(The invention discloses a high-efficiency three-axis dynamic rolling device which is arranged behind a tire building drum and comprises a base plate and a rack fixed on the base plate, wherein a horizontal bedplate is arranged on a rail on the top surface of the rack, and a first servo transmission mechanism for driving the bedplate to slide back and forth on the rack is also arranged on the rack; a double-control toggle device is respectively arranged on the left and the right of the front part of the bedplate; a rolling wheel device for shaping the tire blank is arranged at the top of each double-control toggle device; a second servo transmission mechanism for synchronously actuating the two double-control toggle devices so as to enable the two rolling wheel devices to symmetrically swing is arranged at the right rear side of the bedplate; a third servo transmission mechanism for synchronously actuating the double-control toggle device to rotate so as to enable the two rolling wheels to symmetrically swing and rotate relative to the bedplate is arranged on the left rear side of the bedplate; the three servo transmission mechanisms are matched to enable the rolling wheel pair to continuously roll and shape the surface of the tire blank along the tire from the tire tread to the tire, so that the working efficiency is greatly improved, and the molding quality of the tire is ensured.)

1. The utility model provides a high-efficient triaxial dynamic rolling press device installs at the rear of tire building drum, includes a base plate (10) and one fixes frame (20) on base plate (10), its characterized in that:

A horizontal bedplate (40) is arranged on the top surface of the rack (20) in a rail way, and a first servo transmission mechanism (50) for driving the bedplate (40) to slide back and forth on the rack (20) is also arranged on the rack (20);

A pair of control toggle devices (60) are respectively arranged on the left and the right of the front part of the bedplate (40); a rolling wheel device (90) for shaping the tire blank is arranged at the top of each double-control toggle device (60); a second servo transmission mechanism (70) for synchronously actuating the two double-control toggle devices (60) so as to enable the two rolling wheel devices (90) to symmetrically swing is arranged at the right rear side of the bedplate (40); a third servo transmission mechanism (80) which is used for synchronously actuating the double-control toggle device (60) to rotate so as to enable the two rolling wheel devices (90) to symmetrically swing and rotate relative to the bedplate (40) is arranged at the left rear side of the bedplate (40); the three servo transmission mechanisms are matched to enable the rolling wheel device (90) to continuously roll and shape the surface of the tire blank along the tire direction from the tire surface to the tire.

2. An efficient three-axis dynamic rolling apparatus as claimed in claim 1, wherein: two guide rails (41) which are in sliding fit with the bottom surface of the bedplate (40) are fixed on the left side and the right side of the top surface of the frame (20) in parallel, and the first servo transmission mechanism (50) comprises a first servo motor (51) fixed on the right rear side of the frame (20), a first ball screw (52) which is used for fixing the middle of the frame (20) and used for actuating the bedplate (40) to move back and forth through threads, and a first synchronous belt (53) which is used for transmitting the power of the first servo motor (51) to the first ball screw (52).

3. An efficient three-axis dynamic rolling apparatus as claimed in claim 2, wherein: each double-control toggle device (60) comprises a rotating shaft (61) vertically arranged at the front part of the bedplate (40), the top end of the rotating shaft (61) is fixedly connected with a swing plate (62) in a biasing way, the lower part of the rotating shaft (61) is fixedly provided with a lower sector gear (63) used for actuating the rotating shaft (61) to rotate, a seat plate (64) is respectively arranged above each swing plate (62), the seat plate (64) is connected to the swing plate (62) in a swinging way through a connecting rod device (65), and an upper sector gear (66) hinged with the connecting rod device (65) is connected to the rotating shaft (61) between the swing plate (62) and the lower sector gear (63) in a rotating and sleeved way; the rolling wheel device (90) is fixed on a mounting position (641) arranged on the top surface of the seat plate (64), the upper sector gear (66) is driven by a second servo transmission mechanism (70), and the lower sector gear (63) is driven by a third servo transmission mechanism (80).

4. An efficient three-axis dynamic rolling apparatus as claimed in claim 3, wherein: the left and the right of the front end of the bedplate (40) are respectively provided with a bearing mounting hole (43), and the rotating shaft (61) is connected with the bearing mounting holes (43) through two ball bearings (611).

5. An efficient three-axis dynamic rolling apparatus as claimed in claim 3, wherein: the connecting rod device (65) comprises a first connecting rod (651), a second connecting rod (652) and a third connecting rod (653), wherein the first connecting rod (651) is hinged to the swing plate (62) through a first inner hinge shaft (A1), one outer swing end of the first connecting rod (651) is hinged to the bottom surface of the seat plate (64) through a first outer hinge shaft (B1), the second connecting rod (652) is hinged to the swing plate (62) through a second inner hinge shaft (A2), one outer swing end of the second connecting rod (652) is hinged to the bottom surface of the seat plate (64) through a second outer hinge shaft (B2), the other outer swing end of the second connecting rod (652) is hinged to one end of the third connecting rod (653) through a third outer hinge shaft (B3), and the other end of the third connecting rod (653) is hinged to the outer end of the sector face of the upper sector gear (66) through a traction hinge shaft (C).

6. An efficient three-axis dynamic rolling apparatus as claimed in claim 3, wherein: the middle parts of the left side and the right side of the top surface of the bedplate (40) are provided with two parallel side vertical plates (42), the second servo transmission mechanism (70) comprises a second ball screw (71) which is arranged on the upper parts of the two side vertical plates (42) and is provided with a positive thread part and a negative thread part, and the third servo transmission mechanism (80) comprises a third ball screw (81) which is arranged on the lower parts of the two side vertical plates (42) and is provided with a positive thread part and a negative thread part.

7. An efficient three-axis dynamic rolling apparatus as claimed in claim 6, wherein: the second servo transmission mechanism (70) further comprises two upper-layer rack installation seats (72) which are respectively installed on the positive and negative thread portions of the second ball screw (71) in a thread fit mode, an upper-layer rack (73) meshed with the upper sector gear (66) is fixed to the front of each upper-layer rack installation seat (72), two horizontal and parallel upper optical axes (74) are sleeved on the upper-layer rack installation seats (72) in a sliding mode, and the end portions of the two horizontal and parallel upper optical axes are fixedly connected with the two side vertical plates (43); the second servo transmission mechanism (70) also comprises a second servo motor (75) fixed at the right rear part of the top surface of the bedplate (40) and a second synchronous belt (76) for transmitting the power of the second servo motor (75) to the second ball screw (71).

8. An efficient three-axis dynamic rolling apparatus as claimed in claim 6, wherein: the third servo transmission mechanism (80) further comprises two lower-layer rack installation seats (82) which are respectively installed on the positive and negative thread portions of the third ball screw (81) in a threaded fit mode, a lower-layer rack (83) meshed with the lower sector gear (63) is fixed to the front of each lower-layer rack installation seat (82), two horizontal parallel lower optical axes (84) are sleeved on the lower-layer rack installation seats (82) in a sliding mode, and the end portions of the two lower optical axes are fixedly connected with the two side vertical plates (43); the third servo transmission mechanism (80) also comprises a third servo motor (85) fixed at the left rear part of the top surface of the bedplate (40) and a third synchronous belt (86) for transmitting the power of the third servo motor (75) to a third ball screw (81).

9. An efficient three-axis dynamic rolling apparatus as claimed in claim 3, wherein: the rolling wheel device (90) comprises an air cylinder mounting seat (91) fixed on the mounting position (641), an air cylinder (92) fixedly mounted on the air cylinder mounting seat (91), a roller mounting seat (93) mounted at the front end of an air cylinder rod, a group of guide shafts (94) which are slidably mounted on the air cylinder mounting seat (91) and the front ends of which are fixed with the roller mounting seat (93), and a rolling wheel (95) rotatably mounted on the roller mounting seat (93) and used for rolling and shaping tire blanks.

10. An efficient three-axis dynamic rolling apparatus as claimed in claim 1, wherein: four adjusting bolt assemblies (30) are further fixed on the base plate (10), and the adjusting bolt assemblies (30) are used for adjusting the installation and fixing positions of the correcting rack (20) on the base plate (10).

Technical Field

The invention relates to a rear rolling device applied to a tire building machine, in particular to a high-efficiency three-shaft dynamic rolling device capable of performing rolling shaping on a tire blank on the tire building machine.

Background

In tire molding and manufacturing, a rolling device is an important component of tire molding equipment, and is generally arranged behind a molding drum of a tire molding machine and used for rolling and shaping a tire blank rotating at a high speed on the molding drum; the quality of the tire blank rolling and shaping quality has great influence on the molding quality of the tire. Most of shaping and rolling devices of the existing tire forming machines adopt three groups of static rolling wheels to roll the tire surface, the tire side and the tire edge of a tire blank respectively, and each group of rolling wheels control the pushing-out work of an air cylinder by means of an electromagnetic valve; because the working time of the three groups of rolling wheels is different, when the rolling wheels are switched to work, the rolling shaping of the rolling part of the tire blank is discontinuous, the tire surface is wrinkled or concave-convex is generated, and the forming quality of the tire is influenced. And the outer contour of the tire rolling formed by three groups of static rolling wheels of the shaping rolling device of the existing tire forming machine cannot be adjusted, namely the shaping rolling device cannot be universally used for shaping rolling of tires with different tire widths or/and tire heights.

disclosure of Invention

In order to solve the above problems, the present invention provides an efficient three-axis dynamic rolling device, which can precisely perform continuous and efficient rolling shaping on each rolling point of a green tire on a forming drum by using only one set of rolling wheels, so as to realize the rolling seamless connection of the rolling wheels to the tread, sidewall and bead of the green tire in sequence, so that the surface of the rolled and shaped green tire is smooth, thereby ensuring the quality of tire forming, and being applicable to the shaping and rolling of tires with different widths or/and heights.

In order to achieve the above object, the present invention provides a high-efficiency three-axis dynamic rolling device, which is installed behind a tire building drum, and comprises a base plate and a frame fixed on the base plate, wherein the high-efficiency three-axis dynamic rolling device is characterized in that: a horizontal bedplate is arranged on the top surface rail of the rack, and a first servo transmission mechanism for driving the bedplate to slide back and forth on the rack is also arranged on the rack; a double-control toggle device is respectively arranged on the left and the right of the front part of the bedplate; a rolling wheel device for shaping the tire blank is arranged at the top of each double-control toggle device; a second servo transmission mechanism for synchronously actuating the two double-control toggle devices so as to enable the two rolling wheel devices to symmetrically swing is arranged at the right rear side of the bedplate; a third servo transmission mechanism for synchronously actuating the double-control toggle device to rotate so as to enable the two rolling wheel devices to symmetrically swing and rotate relative to the bedplate is arranged on the left rear side of the bedplate; the three servo transmission mechanisms are matched to enable the rolling wheel device to continuously roll and shape the surface of the tire blank from the tire surface to the tire along the tire direction.

Two guide rails which are in sliding fit with the bottom surface of the bedplate are fixed on the left and right sides of the top surface of the frame in parallel, and the first servo transmission mechanism comprises a first servo motor fixed on the right rear side of the frame, a first ball screw which is used for fixing the middle of the frame and actuating the bedplate to move back and forth through threads, and a first synchronous belt which transmits the power of the first servo motor to the first ball screw. The first servo motor drives the first ball screw to rotate, the platen can be accurately controlled to move back and forth on the rack, the back and forth movement of the rolling wheel device is accurately realized, the double-control toggle device is actuated by combining the second servo transmission mechanism to enable the rolling wheel device to accurately swing on the double-control toggle device, the whole double-control toggle device is actuated by combining the third servo transmission mechanism to accurately swing on the platen, the rolling wheels of the two rolling wheel devices can accurately press the tire tread of the tire blank to move axially along the tire, the rolling points of the rolling wheels moving axially on the tire blank form a continuous and complete tire axial rolling outer contour line, and the continuous rolling shaping of the tire blank rotating at high speed on the tire forming drum can be realized.

Each double-control toggle device comprises a rotating shaft vertically arranged at the front part of the bedplate, a swinging plate is fixedly connected to the top end of the rotating shaft in a biasing way, a lower sector gear for actuating the rotating shaft to rotate is fixed at the lower part of the rotating shaft, a seat plate is arranged above each swinging plate, the seat plate is connected to the swinging plate in a swinging way through a connecting rod device, and an upper sector gear hinged to the connecting rod device is connected to the rotating shaft between the swinging plate and the lower sector gear in a rotating and sleeved way; the rolling wheel device is fixed on a mounting position arranged on the top surface of the base plate, the upper sector gear is driven by the second servo transmission mechanism, and the lower sector gear is driven by the third servo transmission mechanism. The second servo transmission mechanism drives the upper sector gear to drive the connecting rod device to enable the seat plate to swing, so that accurate horizontal swing of the rolling wheel device on the double-control toggle device can be achieved, the third servo transmission mechanism drives the whole double-control toggle device of the lower sector gear to swing accurately and horizontally relative to the table plate, the table plate is driven by combining the first servo transmission mechanism to enable the double-control toggle device and the rolling wheel device on the double-control toggle device to move back and forth accurately, continuous moving tracks of the rolling wheels of the two rolling wheel devices are symmetrical to form a continuous and complete axial rolling shaping outer contour of a tire blank, and the continuous rolling shaping of the tire blank can be achieved by combining high-speed rotation of the tire blank on a tire forming drum.

a bearing mounting hole is respectively formed in the left and right sides of the front end of the bedplate, and a rotating shaft is connected with the bearing mounting holes through two ball bearings; the design can ensure that the third servo transmission mechanism drives the lower sector gear to ensure that the torsion force when the rotating shaft rotates is less, and the whole double-control toggle device and the upper rolling wheel device thereof can swing on the bedplate more flexibly and smoothly by taking the rotating shaft as a support, thereby ensuring the accuracy of the third servo transmission mechanism controlling the swing position of the double-control toggle device.

The connecting rod device comprises a first connecting rod, a second connecting rod and a third connecting rod, wherein the first connecting rod is hinged to a swing plate through a first inner hinge shaft, one outer swing end of the first connecting rod is hinged to the bottom surface of a seat plate through a first outer hinge shaft, the second connecting rod is hinged to the swing plate through a second inner hinge shaft, one outer swing end of the second connecting rod is hinged to the bottom surface of the seat plate through a second outer hinge shaft, the other outer swing end of the second connecting rod is hinged to one end of the third connecting rod through a third outer hinge shaft, and the other end of the third connecting rod is hinged to the outer end of the sector surface of an upper sector gear through a traction hinge shaft. When a rotating shaft of the double-control toggle device is not moved, the upper sector gear can actuate a third connecting rod through a third external hinge shaft when swinging around the rotating shaft, so that the third connecting rod drives the seat plate through the second external hinge shaft, the seat plate drives the first connecting rod through the first external hinge shaft, the first connecting rod is linked together around the first internal hinge shaft and the second connecting rod around the second internal hinge shaft and swings on a swinging plate at the top end of the rotating shaft together, and the rolling wheel device arranged on the seat plate can swing; or the upper sector gear is fixed, the rotating shaft of the double-control toggle device drives the swinging plate to actuate the first connecting rod, the seat plate and the second connecting rod to be linked through the first inner hinge shaft and the second inner hinge shaft, so that the rolling wheel device swings and rotates along with the seat plate; the upper sector gear and the lower sector gear can swing simultaneously, the rolling wheel device on the seat plate swings through linkage of the connecting rod device, the change of the moving track of the rolling wheel device can be realized, and the rolling wheel device moves back and forth by combining with the back and forth movement of the platen, so that the rolling wheel device moves back and forth, even if rolling points of rolling tire blanks of the rolling wheels of the two rolling wheel devices continuously move along the axial outer surface of the tire to form the axial outer contour of the rolling tire blanks, and the accurate control of the rolling points of the rolling tire blanks of the rolling wheel device can be realized.

The middle parts of the left side and the right side of the top surface of the bedplate are provided with two parallel side vertical plates, the second servo transmission mechanism comprises a second ball screw rod which is arranged at the upper parts of the two side vertical plates and provided with positive and negative tooth thread parts, and the third servo transmission mechanism comprises a third ball screw rod which is arranged at the lower parts of the two side vertical plates and provided with positive and negative tooth thread parts.

The second servo transmission mechanism also comprises two upper rack installation seats which are respectively installed on the positive and negative thread parts of the second ball screw in a thread fit manner, an upper rack meshed with the upper sector gear is respectively fixed in front of each upper rack installation seat, two horizontal and parallel upper polishing shafts are sleeved on the upper rack installation seats in a sliding manner, and the end parts of the two upper rack installation seats are fixedly connected with the two side vertical plates; the second servo transmission mechanism also comprises a second servo motor fixed at the right rear part of the top surface of the bedplate and a second synchronous belt for transmitting the power of the second servo motor to the second ball screw. The second servo motor drives the second ball screw to rotate through the second synchronous belt, so that the second ball screw drives the two upper rack installation seats at the left part and the right part of the second ball screw to move along the upper optical shaft in the opposite direction or in the opposite direction, the two upper racks drive the upper sector gears of the two double-control toggle devices to swing in the opposite direction, the connecting rod device is driven to actuate the two seat plates, the two rolling wheel devices swing in the mode, the two rolling wheels move in the opposite direction or in the opposite direction, and accurate control of the rolling wheels on the axial rolling track of the tire blank is realized.

the third servo transmission mechanism also comprises two lower-layer rack installation seats which are respectively installed on the positive and negative thread parts of the third ball screw in a thread fit manner, a lower-layer rack meshed with the lower sector gear is respectively fixed in front of each lower-layer rack installation seat, two horizontally parallel lower optical axes are sleeved on the lower-layer rack installation seats in a sliding manner, and the end parts of the two horizontally parallel lower optical axes are fixedly connected with the two side vertical plates; the third servo transmission mechanism also comprises a third servo motor fixed at the left rear part of the top surface of the bedplate and a third synchronous belt for transmitting the power of the third servo motor to a third ball screw. The third servo motor drives the third ball screw to rotate through the third synchronous belt, so that the third ball screw thread actuates the two lower-layer rack installation seats at the left part and the right part of the third ball screw thread to move along the upper light shaft in the opposite direction or in the opposite direction, the two lower-layer racks drive the lower sector gears of the two double-control toggle devices to swing in the opposite direction, the left rotating shaft and the right rotating shaft on the bedplate rotate, the swing plate at the top end of the rotating shaft drives the seat plate to move through the connecting rod device, and the continuous and accurate control of the axial track of the rolling wheel device for rolling the tire blank is realized.

The rolling wheel device comprises an air cylinder mounting seat for fixing on a mounting position, an air cylinder fixedly mounted on the air cylinder mounting seat, a roller mounting seat mounted at the front end of an air cylinder rod, a group of guide shafts which are slidably mounted on the air cylinder mounting seat and the front ends of which are fixed with the roller mounting seat, and a rolling wheel which is rotatably mounted on the roller mounting seat and used for rolling and shaping a tire blank. The cylinder rod of the cylinder drives the roller mounting seat to extend out in a range, the rolling wheel can be controlled to move back and forth, the rolling pressure of a tire blank can be adjusted, and the guide shaft is used for guiding the rolling wheel to move back and forth, so that the rolling wheel can move back and forth stably.

The four adjusting bolt assemblies are further fixed on the base plate and used for adjusting the mounting and fixing positions of the correcting machine frame on the base plate; to ensure that the present invention is mounted in alignment behind the building drum of a tire building machine.

The invention has the following beneficial effects:

Firstly, a tire blank is continuously shifted and rolled by only one set of rolling wheels without switching rolling positions of a plurality of sets of rolling wheels, so that the working efficiency of shaping and rolling the tire blank is improved, the rolled and shaped tire surface does not wrinkle or generate concave-convex phenomenon, and the quality of tire molding is ensured;

Secondly, the three servo transmission mechanisms are matched to control the double-control toggle device to move the rolling wheel device back and forth and swing left and right, so that the size of the outer contour of the tire blank continuously rolled axially by the rolling wheel can be adjusted, the shaping rolling of tires with different tire widths or/and tire heights is met, and the universality of the shaping rolling shaping tire is greatly improved.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of the second and third servoactuators mounted on the platen of the present invention.

Fig. 3 is a schematic perspective view of the dual-control toggle device of the present invention.

Fig. 4 is a schematic perspective view of a dual-control toggle device according to the present invention.

Fig. 5 is a schematic structural diagram of the rolling wheel device of the present invention mounted on a double control toggle device.

The figures in the drawings are identified as: 10. a substrate; 20. a frame; 30. an adjusting bolt assembly; 40. a platen; 41. a guide rail; 42. a side vertical plate; 43. a bearing mounting hole; 50. a first servo transmission mechanism; 51. a first servo motor; 52. a first ball screw; 53. a first synchronization belt; 60. a double control toggle device; 61. a rotating shaft; 611. a ball bearing; 62. a swinging plate; 63. a lower sector gear; 64. a seat plate; 641. an installation position; 65. a link means; 651. a first link; 652. a second link; 653. a third link; 66. an upper sector gear; A1. a first internal hinge shaft; A2. a second inner hinge shaft; B1. a first external hinge shaft; B2. a second outer hinge shaft; B3. a third external hinge shaft; C. a traction hinge shaft; 70. a second servo transmission mechanism; 71. a second ball screw; 72. an upper rack mounting seat; 73. an upper rack; 74. an upper optical axis; 75. a second servo motor; 76. a second synchronous belt; 80. a third servo transmission mechanism; 81. a third ball screw; 82. a lower rack mount; 83. a lower rack; 84. a lower optical axis; 85. a third servo motor; 86. a third synchronous belt; 90. a rolling wheel device; 91. a cylinder mounting seat; 92. a cylinder; 93. a roller mounting seat; 94. a guide shaft; 95. and rolling wheels.

Detailed Description

The invention is further illustrated with reference to the following figures and examples.

The efficient triaxial dynamic rolling device shown in fig. 1 is used for being installed behind a tire building drum, and comprises a base plate 10 and a rack 20 fixed on the base plate 10, wherein four adjusting bolt assemblies 30 are further fixed on the base plate 10, and the adjusting bolt assemblies 30 are used for adjusting and correcting the installation and fixing positions of the rack 20 on the base plate 10; a horizontal bedplate 40 is arranged on the top surface of the frame 20 through a rail, and a first servo transmission mechanism 50 for driving the bedplate 40 to slide back and forth on the frame 20 is also arranged on the frame 20; a pair of control toggle devices 60 are respectively arranged on the left and the right of the front part of the bedplate 40; a rolling wheel device 90 for shaping the tire blank is arranged at the top of each double-control toggle device 60; a second servo transmission mechanism 70 for synchronously actuating the two double-control toggle devices 60 so as to enable the two rolling wheel devices 90 to symmetrically swing on the corresponding double-control toggle devices 60 is arranged at the right rear side of the bedplate 40; a third servo transmission mechanism 80 for synchronously actuating the double-control toggle device 60 to rotate so as to enable the two rolling wheel devices 90 to symmetrically swing relative to the table plate 40 is arranged at the left rear side of the table plate 40; the three servoactuators cooperate to allow the stitching wheel assembly 90 to continuously roll and shape the surface of the green tire from the tread toward the bead.

The specific assembly structure and function of the invention are explained as follows:

As shown in fig. 1, two guide rails 41 slidably engaged with the bottom surface of the platen 40 are fixed in parallel on the left and right sides of the top surface of the frame 20 of the present invention, and the first servo transmission mechanism 50 includes a first servo motor 51 fixed on the right rear side of the frame 20, a first ball screw 52 fixed in the middle of the frame 20 for driving the platen 40 to move back and forth by screw threads, and a first synchronous belt 53 for transmitting the power of the first servo motor 51 to the first ball screw 52; the first synchronous belt 53 is driven by the first servo motor 51 to actuate the first ball screw 52 to rotate, so that the first ball screw 52 actuates the platen 40 to precisely slide back and forth along the guide rail 41, and the double-control toggle device 60, the second servo transmission mechanism 70, the third servo transmission mechanism 80 arranged on the platen 40 and the rolling wheel device 90 arranged on the double-control toggle device 60 can synchronously move back and forth with the platen 40.

Referring to fig. 1, 3 and 4, each dual-control toggle mechanism 60 of the present invention includes a rotating shaft 61 vertically installed at the front portion of the bedplate 40, a swing plate 62 is fixedly attached to the top end of the rotating shaft 61 in an offset manner, and a lower sector gear 63 for actuating the rotating shaft 61 to rotate is fixed to the lower portion of the rotating shaft 61; set up a bedplate 64 above the swing board 62, bedplate 64 swings through link means 65 and changes the connection on swing board 62, rotates on the pivot 61 between swing board 62 and the lower sector gear 63 and cup joints and connects an upper sector gear 66 articulated with link means 65, specifically is: the link device 65 comprises a first link 651, a second link 652 and a third link 653, the first link 651 is hinged on the swinging plate 62 through a first inner hinge shaft a1, one outer swinging end of the first link 651 is hinged with the bottom surface of the seat plate 64 through a first outer hinge shaft B1, the second link 652 is hinged on the swinging plate 62 through a second inner hinge shaft a2, one outer swinging end of the second link 652 is hinged with the bottom surface of the seat plate 64 through a second outer hinge shaft B2, the other outer swinging end of the second link 652 is hinged at one end of the third link 653 through a third outer hinge shaft B3, and the other end of the third link 653 is hinged with the outer end of the sector surface of the upper sector gear 66 through a traction hinge shaft C, so as to realize the assembly connection of the single double-control toggle device 60; as shown in fig. 1 to 3, a bearing mounting hole 43 is provided on each of the left and right sides of the front end of the top plate 40, and the rotary shaft 61 is connected to the bearing mounting hole 43 through two ball bearings 611, so that the left and right double-control toggle devices 60 are symmetrically and rotatably mounted on the front end of the top plate 40.

As shown in fig. 1 and 5, the rolling wheel device 90 of the present invention comprises a cylinder mounting seat 91, a cylinder 92 fixedly mounted on the cylinder mounting seat 91, a roller mounting seat 93 mounted on the front end of the cylinder rod, a set of guide shafts 94 slidably mounted on the cylinder mounting seat 91 and having the front end fixed to the roller mounting seat 93, and a rolling wheel 95 rotatably mounted on the roller mounting seat 93 for rolling and shaping a tire blank; the bottom surfaces of the cylinder mounting seats 91 of the two rolling wheel devices 90 are respectively connected and fixed with the mounting positions 641 on the seat plates 64 of the left and right double-control toggle devices 60, so that the two rolling wheel devices 90 are symmetrically mounted on the left and right double-control toggle devices 60. The air cylinder rod of the air cylinder 92 drives the rolling wheel 95 to move back and forth, the rolling force of the rolling wheel 95 on the tire blank can be adjusted, and the guide shaft 94 can ensure the stability of the rolling wheel 95 in moving back and forth.

As shown in fig. 1, 2 and 4, the middle parts of the left and right sides of the top surface of the bedplate 40 of the present invention are provided with two parallel side vertical plates 42; the second servo transmission mechanism 70 comprises a second ball screw 71 which is arranged on the upper parts of the two side vertical plates 42 and is provided with a positive thread part and a negative thread part, and also comprises two upper rack installation seats 72 which are respectively arranged on the positive thread part and the negative thread part of the second ball screw 71 in a thread fit way, an upper rack 73 which is meshed with the upper sector gear 66 is respectively fixed in front of each upper rack installation seat 72, two horizontal parallel upper light shafts 74 are sleeved on the upper rack installation seats 72 in a sliding way, and the end parts of the two upper rack installation seats are fixedly connected with the two side vertical plates 43; the second servo transmission mechanism 70 further includes a second servo motor 75 fixed to the right rear portion of the top surface of the platen 40, and a second timing belt 76 for transmitting the power of the second servo motor 75 to the second ball screw 71. The second servo motor 75 drives the second ball screw 71 to rotate through the second synchronous belt 76, so that the two upper rack mounting seats 72 thereon can move towards or away from each other stably along the two upper optical axes 74, the two upper racks 73 on the left and right respectively drive the upper sector gears 66 on the left and right double-control toggle devices, and the connecting rod device 65 drives the seat plate 64 and the seat plate 64 to swing, so that the two rolling wheel devices 90 can swing on the double-control toggle device 60, that is, the rolling wheels 95 of the two rolling wheel devices 90 swing on the two double-control toggle devices 60 towards or away from each other in the left and right directions.

As shown in fig. 1, 2 and 4, the third servo transmission mechanism 80 of the present invention includes a third ball screw 81 having a front and back thread portion installed at the lower portion of the two side vertical plates 42, and further includes two lower rack installation seats 82 installed on the front and back thread portion of the third ball screw 81 in a screw-fit manner, a lower rack 83 engaged with the lower sector gear 63 is fixed at the front of each lower rack installation seat 82, two horizontally parallel lower optical axes 84 are slidably sleeved on the lower rack installation seats 82 and the end portions are fixedly connected with the two side vertical plates 43, and the two lower optical axes 84 can ensure that the third ball screw 81 drives the lower rack installation seats 82 to horizontally move left and right stably; the third servo actuator 80 further includes a third servo motor 85 fixed to the left rear portion of the top surface of the platen 40, and a third timing belt 86 for transmitting the power of the third servo motor 75 to the third ball screw 81. The third servo motor 85 drives the third ball screw 81 to rotate through the third synchronous belt 86, the third ball screw 81 drives the left and right lower rack mounting seats 82 to horizontally move in the left and right directions in an opposite direction or in an opposite direction, the left and right lower racks 83 drive the lower sector gear 63 to swing, the lower sector gear 63 drives the rotating shaft 61 to rotate forward or in a reverse direction by a certain amplitude, and the swing plate 62 is actuated to drive the connecting rod device 65 to swing the seat plate, so that the two rolling wheel devices 90 can swing relative to the platen 40, that is, the rolling wheels 95 of the two rolling wheel devices 90 swing and move.

The operation principle and the operation of the present invention will be briefly described based on the above-described structures and functions of the respective parts.

as shown in fig. 1 to 3, the present invention is installed behind a building drum of a tire building machine such that the middle surfaces of the left and right stitching wheels 95 are overlapped and perpendicular to the building drum. When a green tire on the forming drum needs to be rolled, a cylinder rod on the rolling wheel device 90 is in an extending state, and the pressure of a cylinder 92 is adjustable, so that the pressure of the rolling wheel 95 for rolling the green tire can be adjusted, a first servo motor 51 of a first servo transmission mechanism 50 is started, a first ball screw 52 is driven to rotate through a first synchronous belt 53, the bedplate 40 is driven to move forwards along the guide rail 41, and even if all parts on the bedplate 40 move forwards along with the bedplate 40, the two rolling wheels 95 are further contacted with the middle surface of the green tire; then the second servo motor 75 of the second servo transmission mechanism 70 drives the second ball screw 71 to rotate through the second synchronous belt 76, so that the two upper rack installation seats 72 can move smoothly along the two upper optical axes 74 in opposite directions, the left and right upper racks 73 respectively drive the upper sector gears 66 on the left and right double-control toggle devices, the seat plate 64 and the seat plate 64 are driven to swing through the respective connecting rod devices 65, so that the rolling wheels 95 of the two rolling wheel devices 90 can move and roll from the middle of the tire blank to both sides of the axial direction of the tire blank, when the rolling wheels 95 roll to the tire edge, the third servo motor 85 of the third servo transmission mechanism 80 drives the third ball screw 81 to rotate through the third synchronous belt 86, the third ball screw 81 drives the left and right lower rack installation seats 82 to move horizontally in opposite directions, the left and right lower racks 83 drive the lower sector gears 63 to swing, the lower sector gears 63 drive the swing plates 62 through the rotating shafts 61, the linkage connecting rod device 65 drives the seat plate 64 to swing and rotate, so that the rolling wheels 95 on the rolling wheel device 90 rotate and roll along the shape of the tire bead at the tire bead; after the rolling is completed, the first servo transmission mechanism 50 drives the platen 40 to move backward, the second servo transmission mechanism 70 drives the dual-control toggle device 60 to swing the rolling wheel device 90, so that the rolling wheel 85 returns to the middle position, the third servo transmission mechanism 80 drives the dual-control toggle device 60 to swing the rolling wheel device 90, so that the rolling wheel 85 returns to the initial angle perpendicular to the forming drum, and then the cylinder rod of the cylinder 92 on the rolling wheel device 90 retracts, so that the rolling wheel 85 returns to the initial position to prepare for the next rolling.

The invention controls three ball screws to be matched through three servo transmission mechanisms respectively, controls the table plate 40 to move back and forth, and controls the double-control toggle device 60 to swing the rolling wheel device 90 to realize the movement and the direction change of the rolling wheels 95, so that the two symmetrical rolling wheels 95 can axially move rolling points of rolling tire blanks to form a continuous tire shaping outer contour line, and the continuous shaping rolling of the tire blank surfaces can be finished by combining the rotation of the tire blanks on the forming drum. For the green tires with different tread widths and different tire diameters, the first servo transmission mechanism 50 controls the first ball screw 52 to drive the platen 40 to move back and forth, the second servo transmission mechanism 70 controls the amplitude of the second ball screw 71 to dial the upper sector gear 66, and the third servo transmission mechanism 80 controls the amplitude of the third ball screw 81 to dial the upper sector gear 63, so that the two rolling wheels 95 can move to draw the corresponding axial outer contour of the green tire shaping, and the invention can be generally used for shaping and rolling the green tires with different specifications.

the above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes or modifications without departing from the spirit and scope of the present invention. Accordingly, all equivalents are intended to fall within the scope of the invention, which is defined in the claims.