Rotary tire grabber of tire vulcanizer

Abstract

The invention relates to the technical field of vulcanizing machines, and discloses a rotary tire grabber of a tire vulcanizing machine. The tire grabbing device comprises a tire grabbing plate, the tire grabbing plate is rotatably arranged on the tray and can rotate around the axis of the tray, a plurality of claw pieces and a first driving assembly are arranged on the tire grabbing plate, the first driving assembly can drive the claw pieces to be opened or closed mutually, and the first driving assembly is connected with a power supply circuit or a gas circuit; the rotary drag chain device comprises a chain and a track assembly, the chain is provided with a fixed end and a movable end, the fixed end is fixed relative to the tray, the movable end rotates along with the grabbing disc, and the chain is arranged on the track assembly and used for wiring of a power supply circuit or a gas circuit. The track assembly can guide and limit movement of the chain, the chain is used for wiring of the power supply circuit, and winding and pulling of the power supply circuit or the gas circuit of the driving assembly in the rotating process of the tire grabbing device can be avoided.

Description

Technical Field

[0001] The invention relates to the technical field of vulcanizers, in particular to a rotary tire gripper for a tire vulcanizer. Background Art

[0002] The tire grabber can take and release the raw tire. The tire grabber includes a claw and a driving assembly that drives the claw. The tire grabber needs to rotate during operation. The circuit used to power the driving assembly or the air supply line is prone to entanglement and pulling during the rotation of the tire grabber, thereby affecting the normal operation of the driving assembly. Summary of the Invention

[0003] In view of this, the present invention provides a rotary tire gripper for a tire vulcanizer to solve the problem that the circuit for powering the driving assembly or the air path for supplying air is easily entangled and pulled during the rotation of the tire gripper.

[0004] The present invention provides a rotary tire gripper for a tire vulcanizer, comprising:

[0005] tray;

[0006] The tire grabber includes a placenta grabber, the placenta grabber being rotatably mounted on the tray and capable of rotating about its axis, the placenta grabber being provided with a plurality of claws and a first drive assembly, the first drive assembly being capable of driving the plurality of claws to open or close relative to each other, the first drive assembly being connected to a power supply circuit or an air circuit;

[0007] The rotary drag chain device includes a chain and a track assembly. The chain has a fixed end and a movable end. The fixed end is fixed relative to the tray, and the movable end rotates with the placenta grabbing disc. The chain is arranged on the track assembly and is used to route the power supply circuit or the air circuit.

[0008] Beneficial effects: The first drive component can drive several of the claws to open or close with each other, thereby realizing automatic picking and placing of the raw tire. By setting a rotary drag chain device, the rotary drag chain device includes a chain and a track component. The track component can guide and limit the movement of the chain. The chain is used to route the power supply circuit or air circuit, which can avoid the power supply circuit or air circuit of the drive component from being entangled and pulled during the rotation of the tire grabber.

[0009] In an optional embodiment, the track assembly includes an outer fence, an inner fence, an outer partition and an inner partition, the outer fence includes a first arc-shaped wall panel, the inner fence includes a second arc-shaped wall panel, the outer partition and the inner partition are both arc-shaped, the radius of the first arc-shaped wall panel is R1, the radius of the outer partition is R2, the radius of the inner partition is R3, and the radius of the second arc-shaped wall panel is R4, R1>R2>R3>R4, the outer fence and the inner partition are fixed relative to the tray, and at least part of the outer fence and the inner partition are distributed on both sides of a straight line passing through the center of the placenta grabbing disc, the outer partition and the inner fence are respectively connected to the placenta grabbing disc, and at least part of the outer partition and the inner fence are distributed on both sides of a straight line passing through the center of the placenta grabbing disc, the fixed end is fixed to the inner side of the first end of the outer fence, and the movable end of the chain is fixed to the first end of the inner fence toward one side of the outer fence;

[0010] The placenta gripping disc has an initial position, in which the middle of the chain is folded in half, and the first end of the inner fence is close to the first end of the outer fence;

[0011] After the fetus gripping disc rotates from the initial position to the first direction by a preset angle, the chain is located between the inner fence and the inner partition;

[0012] After the placenta gripping disc rotates from the initial position to the second direction by a preset angle, the chain is located between the outer partition and the outer railing.

[0013] Beneficial effects: When the placenta grabbing disc is in its initial position, the middle of the chain is folded in half, and the chain is located between the outer and inner fences. When the placenta grabbing disc rotates from the initial position in a first direction, the inner fence drives the chain to move together, and the chain is located between the inner fence and the inner partition. The inner partition and the inner fence limit and guide the two sides of the chain. When the placenta grabbing disc rotates from the initial position in a second direction, the inner fence drives the chain to move together, and the outer partition gradually rotates to one side of the outer fence. The chain is located between the outer fence and the outer partition. The outer fence and the outer partition limit and guide the two sides of the chain. Therefore, the chain's moving trajectory is limited, which can prevent the power supply circuit of the drive component from being entangled and pulled during the rotation of the tire grabbing disc.

[0014] In an optional embodiment, the tire vulcanizer rotary tire gripper further includes:

[0015] The support assembly includes an inner ring and an outer ring, wherein the inner ring is fixed on the tray, the tire gripping disc is fixed on the outer ring, a plurality of rolling elements are embedded between the inner ring and the outer ring, and an outer ring gear is provided on the outer circumference of the outer ring;

[0016] a driving gear meshing with the outer ring gear;

[0017] a second driving assembly connected to the driving gear and configured to drive the driving gear to rotate;

[0018] A guard cover is arranged outside the support assembly, and the outer railing and the inner partition are fixedly connected to the guard cover.

[0019] In an optional embodiment, the outer wall of the outer fence is connected to the shield via a plurality of first support members;

[0020] The inner wall of the inner fence is connected to the placenta gripping disc via a plurality of second support members;

[0021] The outer partition is connected to the placenta gripping disc via a plurality of third support members, and the third support members are suspended above the inner partition or the inner rail;

[0022] The inner baffle is connected to the shield via a plurality of fourth support members, and the fourth support members exert a supporting force on the lower side of the inner baffle.

[0023] In an optional embodiment, the claw piece is provided with a slider, the womb-grabbing disc is provided with a guide rail corresponding to several of the claw pieces one by one, and the slider is movably provided on the guide rail; the womb-grabbing disc is provided with a driving plate rotatably connected thereto, and the driving plate is provided with several guide holes corresponding to the claw pieces one by one; the claw piece is provided with a guide block, and the guide block extends into the guide hole; the first driving assembly can drive the driving plate to rotate relative to the womb-grabbing disc; when the driving plate rotates relative to the womb-grabbing disc, the guide hole can guide the guide block to move, so that the claw piece moves radially.

[0024] In an optional embodiment, the driving plate is provided with an inner hole coaxially arranged therewith; the tire grabbing disc is provided with a plurality of circumferentially distributed guide wheels, and the wheel surfaces of the guide wheels abut against the inner wall surface of the inner hole;

[0025] And / or, the driving plate is arranged on the upper surface of the tire gripping disc, and the tire gripping disc is provided with a plurality of limit blocks distributed along the outer edge of the driving plate, and the limit blocks extend to the upper side of the driving plate and have a gap between them and the upper surface of the driving plate;

[0026] and / or, the driving plate is rotatably connected to the placenta gripping disc via a bearing;

[0027] And / or, the guide hole is arc-shaped and forms an angle with the circumference of the drive plate;

[0028] and / or, the plurality of claws are evenly distributed along the circumference;

[0029] and / or, part of the claws extend from the bottom of the tray;

[0030] And / or, the placenta gripping disc and the driving plate are both arranged horizontally;

[0031] and / or, the guide block is clearance-matched with two long sides of the guide hole;

[0032] And / or, the first drive assembly is configured as a retractable structure; one end of the first drive assembly is hinged to the drive plate, and the other end of the first drive assembly is hinged to the placenta gripping disc.

[0033] In an optional embodiment, the tire vulcanizer rotary tire gripper further includes:

[0034] a brake assembly, the brake assembly being provided on the tray and being capable of positioning the tire gripping disc and the tray;

[0035] a rotation detection assembly, the rotation detection assembly being used to measure the rotation position of the placenta gripper;

[0036] A barcode recognition component, the barcode recognition component is used to identify the position of the barcode on the sidewall of the green tire;

[0037] A controller is connected to the first drive component, the second drive component, the brake component, the rotation detection component and the barcode recognition component respectively.

[0038] In an optional embodiment, the brake assembly includes a cylinder, and a toothed block is provided at the end of the piston rod of the cylinder; the cylinder is capable of driving the toothed block to move between a first position and a second position; when in the first position, the toothed block is engaged with the outer ring gear; when in the second position, the toothed block is separated from the outer ring gear.

[0039] In an optional embodiment, the rotation detection assembly includes an electrical sensing element provided on the tray and a detection switch fixed to the outer rail, and the fetus gripping disc is provided with a rotating member matching the electrical sensing element;

[0040] and / or, the second drive assembly includes a motor fixed to the tray;

[0041] And / or, the controller is configured as a PLC.

[0042] In an optional embodiment, a cross arm frame is further included, and the tray is fixed on the cross arm frame; a pull rod is provided between the outer edge of the tray away from the cross arm frame and the cross arm frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0044] Figure 1 A schematic diagram of a rotary tire gripper for a tire vulcanizer according to an embodiment of the present invention;

[0045] Figure 2 A top view of a rotary tire gripper for a tire vulcanizer according to an embodiment of the present invention;

[0046] Figure 3 This is a top view of a rotary tire gripper for a tire vulcanizer without a rotary drag chain device according to an embodiment of the present invention;

[0047] Figure 4 A front view of a rotary tire gripper for a tire vulcanizer according to an embodiment of the present invention;

[0048] Figure 5 A three-dimensional cross-sectional view of a rotary tire gripper for a tire vulcanizer according to an embodiment of the present invention;

[0049] Figure 6 A three-dimensional cross-sectional view of a rotary tire gripper of a tire vulcanizer with its protective cover removed, according to an embodiment of the present invention;

[0050] Figure 7 is a schematic diagram of the rotary drag chain device when the placenta is in the initial position;

[0051] Figure 8 A top view of the rotary drag chain device when the placenta is in the initial position;

[0052] Figure 9 is a schematic diagram of the rotary drag chain device after the placenta is rotated 180 degrees in the first direction from the initial position;

[0053] Figure 10 A top view of the rotary drag chain device after the placenta gripper rotates 180° from the initial position to the first direction;

[0054] Figure 11 is a schematic diagram of the rotary drag chain device after the placenta is rotated 180 degrees from the initial position to the second direction;

[0055] Figure 12 It is a top view of the rotary drag chain device after the placenta is rotated 180 degrees from the initial position to the second direction.

[0056] Description of reference numerals:

[0057] 1. Tray; 2. Placenta gripper; 21. Claw; 211. Guide block; 212. Slider; 22. First drive assembly; 23. Guide rail; 24. Drive plate; 241. Guide hole; 242. Inner hole; 25. Guide wheel; 26. Stop block; 31. Inner ring; 32. Outer ring; 33. Rolling element; 34. Outer ring gear; 35. Second drive assembly; 41. Cylinder; 42. Toothed block; 5. Rotation detection assembly; 51. Electrical sensing element; 52. Rotating member; 53. Detection switch; 6. Barcode recognition assembly; 601. Support frame; 602. Electrical component; 7. Cross arm; 71. Pull rod; 72. Intermediate shaft; 8. Chain; 81. Fixed end; 82. Movable end; 91. Outer rail; 911. First arc-shaped wall panel; 912. First horizontal support wall panel; 92. Inner rail; 921. Second arc-shaped wall panel; 922. Second horizontal support wall panel; 93. Outer partition; 94. Inner partition; 95. First support member; 96. Second support member; 97. Third support member; 98. Fourth support member; 981. First connecting portion; 982. Horizontal support portion; 10. Protective cover. DETAILED DESCRIPTION

[0058] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0059] It should be noted that the term "and / or" between a first subject and a second subject includes any of the following meanings: (1) only the first subject, (2) only the second subject, and (3) the first subject and the second subject. The term "and / or" between two subjects in a list of three or more subjects means that at least one subject in the list includes any specific combination of subjects in the list. For example, "A and / or B and / or C" includes the following combinations of A, B, and C: (1) only A, (2) only B, (3) only C, (4) A and B without C, (5) A and C without B, (6) B and C without A, and (7) A, B, and C.

[0060] The following combination Figures 1 to 12 , describing embodiments of the present invention.

[0061] According to an embodiment of the present invention, on the one hand, a rotary tire gripper of a tire vulcanizer is provided, comprising a tray 1, a tire gripper and a rotary drag chain device.

[0062] The tire grabber includes a grabber disc 2, which is rotatably mounted on a tray 1 and capable of rotating about its axis. The grabber disc 2 is provided with a plurality of claws 21 and a first drive assembly 22. The first drive assembly 22 is capable of driving the claws 21 to open or close relative to each other. The first drive assembly 22 is connected to a power supply circuit or an air circuit. The rotary drag chain device includes a chain 8 and a track assembly. The chain 8 has a fixed end 81 and a movable end 82. The fixed end 81 is fixed relative to the tray 1, and the movable end 82 rotates with the grabber disc 2. The chain 8 is mounted on the track assembly and is used to route the power supply circuit or the air circuit.

[0063] In this embodiment, the first drive component 22 can drive several claws 21 to open or close with each other, thereby realizing automatic picking and placing of the raw tire. By setting a rotary drag chain device, the rotary drag chain device includes a chain 8 and a track component. The track component can guide and limit the movement of the chain 8. The chain 8 is used to route the power supply circuit or air circuit, which can avoid the power supply circuit or air circuit of the drive component from being entangled and pulled during the rotation of the tire grabber.

[0064] In one embodiment, the track assembly includes an outer fence 91, an inner fence 92, an outer partition 93 and an inner partition 94, the outer fence 91 includes a first arc-shaped wall panel 911, the inner fence 92 includes a second arc-shaped wall panel 921, the outer partition 93 and the inner partition 94 are both arc-shaped, the radius of the first arc-shaped wall panel 911 is R1, the radius of the outer partition 93 is R2, the radius of the inner partition 94 is R3, and the radius of the second arc-shaped wall panel 921 is R4, R1>R2>R3>R4, the outer fence 91 and the inner partition 94 are fixed relative to the tray 1, and at least part of the outer fence 91 and the inner partition 94 are distributed on both sides of the straight line passing through the center of the circle of the placenta 2, the outer partition 93 and the inner fence 9 2 are respectively connected to the placenta grabbing disc 2, and at least part of the outer partition 93 and the inner fence 92 are distributed on both sides of the straight line passing through the center of the circle of the placenta grabbing disc 2, the fixed end 81 is fixed to the inner side of the first end of the outer fence 91, and the movable end 82 of the chain 8 is fixed to the side of the first end of the inner fence 92 facing the outer fence 91; the placenta grabbing disc 2 has an initial position, in which the middle of the chain 8 is folded in half, and the first end of the inner fence 92 is close to the first end of the outer fence 91; after the placenta grabbing disc 2 is rotated from the initial position to the first direction by a preset angle, the chain 8 is located between the inner fence 92 and the inner partition 94; after the placenta grabbing disc 2 is rotated from the initial position to the second direction by a preset angle, the chain 8 is located between the outer partition 93 and the outer fence 91.

[0065] In this embodiment, when the placenta grabbing disc 2 is in its initial position, the middle of the chain 8 is folded in half, and the chain 8 is positioned between the outer fence 91 and the inner fence 92. When the placenta grabbing disc 2 rotates from its initial position in a first direction, the inner fence 92 drives the chain 8 to move along with it, and the chain 8 is positioned between the inner fence 92 and the inner partition 94. The inner partition 94 and the inner fence 92 limit and guide the two sides of the chain 8. When the placenta grabbing disc 2 rotates from its initial position in a second direction, the inner fence 92 drives the chain 8 to move along with it, and the outer partition 93 gradually rotates to one side of the outer fence 91. The chain 8 is positioned between the outer fence 91 and the outer partition 93. The outer fence 91 and the outer partition 93 limit and guide the two sides of the chain 8. Therefore, the movement trajectory of the chain 8 is limited, which can prevent the power supply circuit of the drive assembly from being entangled or pulled during the rotation of the tire grabbing disc.

[0066] Specific as Figure 7 and Figure 8 As shown, the first arc-shaped wall panel 911 of the outer fence 91, the second arc-shaped wall panel 921 of the inner fence 92, the outer partition 93 and the inner partition 94 are respectively semicircular structures, and the positions of the outer fence 91 and the inner partition 94 are fixed and relatively arranged, and the outer partition 93 and the inner fence 92 are relatively and rotate with the placenta 2.

[0067] Specifically in one embodiment, the preset angle is 180°. Figure 9 and Figure 10 As shown, when the placenta 2 is rotated 180 degrees from the initial position to the first direction (counterclockwise), the chain 8 is located between the inner fence 92 and the inner partition 94; Figure 11 and Figure 12 As shown, when the placenta gripping disc 2 rotates 180° from the initial position to the second direction (clockwise), the chain 8 is located between the outer fence 91 and the outer partition 93 .

[0068] In one embodiment, the tire vulcanizer rotary gripper further includes a support assembly, a driving gear, a second driving assembly 35 and a shield 10 .

[0069] Among them, the support assembly includes an inner ring 31 and an outer ring 32, the inner ring 31 is fixed on the tray 1, and the placenta 2 is fixed on the outer ring 32. A number of rolling bodies 33 are embedded between the inner ring 31 and the outer ring 32, and an outer ring gear 34 is provided on the outer peripheral surface of the outer ring 32; the driving gear is engaged with the outer ring gear 34; the second driving assembly 35 is connected to the driving gear for driving the driving gear to rotate; the protective cover 10 is arranged outside the support assembly, and the outer fence 91 and the inner partition 94 are fixedly connected to the protective cover 10.

[0070] In this embodiment, the support assembly enables smooth rotation of the placenta disc 2. The outer ring gear 34 meshes with a drive gear, and the second drive assembly 35 drives the drive gear to rotate the placenta disc 2 relative to the tray 1. After grabbing a green tire, the green tire can be rotated. A protective shield 10 protects the support assembly. The outer rail 91 and inner baffle 94 are fixedly connected to the shield 10 and do not rotate with the placenta disc 2.

[0071] Specifically, the support assembly may be a slewing bearing, a turntable bearing, or a large thrust bearing.

[0072] For details, please refer to Figure 1 and Figure 2 The second driving assembly 35 preferably includes a motor fixed on the tray 1, and the motor is connected to the driving gear through a reducer, a sprocket and a pulley to realize the rotation of the driving gear.

[0073] In one embodiment, the outer wall of the outer rail 91 is connected to the protective cover 10 through multiple first support members 95; the inner wall of the inner rail 92 is connected to the placenta gripping disc 2 through multiple second support members 96; the outer partition 93 is connected to the placenta gripping disc 2 through multiple third support members 97, and the third support members 97 are suspended above the inner partition 94 or the inner rail 92; the inner partition 94 is connected to the protective cover 10 through multiple fourth support members 98, and the fourth support member 98 includes a first connecting portion 981 connected to the outer wall of the inner partition 94, and a horizontal support portion 982 connected to the lower end of the first connecting portion 981 and extending radially outward.

[0074] In this embodiment, the outer wall of the outer fence 91 is connected to the shield 10 through a plurality of first support members 95, and the first support members 95 exert a downward supporting force on the outer side of the outer fence 91, and the first support members 95 will not interfere with the movement of the chain 8, the inner fence 92, and the outer partition 93; the inner wall of the inner fence 92 is connected to the placenta gripping disc 2 through a plurality of second support members 96, and the second support members 96 exert a downward supporting force on the inner side of the inner fence 92, and the second support members 96 will not interfere with the movement of the chain 8; the outer partition 93 is connected to the placenta gripping disc 2 through a plurality of third support members 97. The support member 97 is suspended above the inner partition 94 or the inner rail 92, and the third support member 97 applies a supporting force on the upper side of the outer partition 93, which will not interfere with the movement of the chain 8; the inner partition 94 and the guard 10 are connected through multiple fourth support members 98, and the fourth support member 98 includes a first connecting portion 981 connected to the outer wall of the inner partition 94, and a horizontal support portion 982 connected to the lower end of the first connecting portion 981 and extending radially outward. The fourth support member 98 applies a supporting force on the lower side of the inner partition 94, and the horizontal support portion 982 can support the chain 8.

[0075] In one embodiment, Figure 1As shown, the outer fence 91 also includes a first horizontal support wall panel 912 provided at the lower end of the first arc-shaped wall panel 911 and extending radially inward, and the inner fence 92 also includes a second horizontal support wall panel 922 provided at the lower end of the second arc-shaped wall panel 921 and extending radially outward. The first horizontal support wall panel 912 and the second horizontal support wall panel 922 can support the chain 8.

[0076] In one embodiment, a slider 212 is provided on the claw piece 21, and a guide rail 23 corresponding to several claw pieces 21 is provided on the placenta grabbing disc 2, and the slider 212 is movably provided on the guide rail 23; a driving plate 24 rotatably connected to it is provided on the placenta grabbing disc 2, and a plurality of guide holes 241 corresponding to the claw pieces 21 are provided on the driving plate 24; a guide block 211 is provided on the claw piece 21, and the guide block 211 extends into the guide hole 241; the first driving assembly 22 can drive the driving plate 24 to rotate relative to the placenta grabbing disc 2; when the driving plate 24 rotates relative to the placenta grabbing disc 2, the guide hole 241 can guide the guide block 211 to move, so that the claw piece 21 moves radially.

[0077] In this embodiment, the provision of the guide hole 241 and the guide block 211 can guide the moving direction of the claw piece 21 .

[0078] Specifically, a slider 212 is provided on the claw piece 21 , and the slider 212 is connected to the guide rail 23 in a sliding manner to enable the claw piece 21 to move radially along the guide rail 23 .

[0079] In one embodiment, the driving plate 24 is provided with an inner hole 242 coaxially arranged therewith; the placenta grabbing disc 2 is provided with a plurality of circumferentially distributed guide wheels 25, the wheel surfaces of the guide wheels 25 abut against the inner wall surface of the inner hole 242;

[0080] And / or, the driving plate 24 is provided on the upper surface of the placenta gripping disc 2, and the placenta gripping disc 2 is provided with a plurality of limit blocks 26 distributed along the outer edge of the driving plate 24, and the limit blocks 26 extend to the top of the driving plate 24 and have a gap between them and the upper surface of the driving plate 24;

[0081] and / or, the driving plate 24 is rotatably connected to the placenta gripping disc 2 via a bearing;

[0082] and / or, the guide hole 241 is arc-shaped and forms an angle with the circumference of the driving plate 24;

[0083] and / or, the plurality of claws 21 are evenly distributed along the circumference;

[0084] and / or, part of the claw piece 21 extends from the bottom of the tray 1;

[0085] and / or, the placenta gripping disc 2 and the driving plate 24 are both arranged horizontally;

[0086] and / or, the guide block 211 is clearance-matched with the two long sides of the guide hole 241;

[0087] And / or, the first drive assembly 22 is configured as a retractable structure; one end of the first drive assembly 22 is hinged to the drive plate 24 , and the other end of the first drive assembly 22 is hinged to the placenta 2 .

[0088] For details, please refer to Figure 2 and Figure 3 The driving plate 24 is provided with an inner hole 242 coaxially arranged therewith; the placenta grabbing disc 2 is provided with four guide wheels 25 evenly distributed in the circumference, and the wheel surface of the guide wheel 25 abuts against the inner wall surface of the inner hole 242. The guide wheel 25 can effectively center the driving plate 24 to prevent the driving plate 24 from deviating during rotation; in other embodiments, the number of guide wheels 25 can also be other values, so as to be able to stably center the guide wheel 25.

[0089] Please refer to Figure 2 and Figure 3 The driving plate 24 is arranged on the upper surface of the placenta grabbing disc 2, and the placenta grabbing disc 2 is provided with several limit blocks 26 distributed along the outer edge of the driving plate 24. The limit blocks 26 extend to the top of the driving plate 24 and there is a gap between the limit blocks 26 and the upper surface of the driving plate 24. The limit blocks 26 can limit the axial position of the driving plate 24, that is, to prevent the driving plate 24 from moving in the vertical direction, and ensure that the driving plate 24 rotates stably relative to the placenta grabbing disc 2; specifically, a groove is provided on the upper surface of the driving plate 24 at the position corresponding to the limit block 26. While the limit block 26 positions the driving plate 24 in the axial direction, it can also limit the rotation angle of the driving plate 24 in cooperation with the groove.

[0090] Specifically, the guide hole 241 should be arc-shaped and form an angle with the circumference of the driving plate 24. When the driving plate 24 rotates, the guide hole 241 moves relative to the placenta 2, thereby driving the guide block 211 to move; further, the guide block 211 and the two long sides of the guide hole 241 are preferably matched with each other in a clearance to ensure that the guide hole 241 smoothly guides the movement of the guide block 211.

[0091] For further information, please refer to Figure 5-Figure 6 The claws 21 are preferably evenly distributed along the circumference, and some claws 21 extend from the bottom of the tray 1 to ensure that the green tire can be stably taken out and released when the claws 21 are opened or closed.

[0092] Specifically, the placenta gripping disc 2 and the driving plate 24 should be arranged horizontally to facilitate taking and releasing the green tire.

[0093] The first drive component 22 is preferably configured as a retractable structure, such as an electric cylinder or a pneumatic cylinder 41; one end of the first drive component 22 is hinged to the drive plate 24, and the other end of the first drive component 22 is hinged to the placenta gripping disc 2. The first drive component 22 can be extended and retracted to drive the drive plate 24 to rotate relative to the placenta gripping disc 2.

[0094] In one embodiment, the rotary tire gripper of the tire vulcanizer further includes: a braking component, a rotation detection component 5, a barcode recognition component 6 and a controller.

[0095] Among them, the braking component is arranged on the tray 1, and the braking component can position the placenta 2 and the tray 1; the rotation detection component 5 is used to measure the rotation position of the placenta 2; the barcode recognition component 6 is used to identify the position of the barcode on the side of the raw tire; the controller is respectively connected to the first drive component 22, the second drive component 35, the braking component, the rotation detection component 5 and the barcode recognition component 6.

[0096] The braking component can position the placenta gripper 2 and the tray 1. When the green tire is rotated to the appropriate position, the braking component can position the green tire to prevent the tire gripper from rotating accidentally, reduce safety risks, ensure that the green tire is placed in the vulcanizer at a specific rotation angle, and ensure that the QR code position on the side of the vulcanized tire is accurate; after the vulcanized QR code is pasted on the green tire, the barcode recognition component 6 is used to identify the position of the vulcanized QR code on the side of the green tire; the measurement information of the rotation detection component 5 and the barcode recognition component 6 can be sent to the controller, and the controller correspondingly controls the first drive component 22, the second drive component 35 and the braking component to operate in an orderly manner, which can realize the automation and unattended operation of the entire vulcanization process.

[0097] Specifically in one embodiment, the barcode recognition component 6 includes an electrical component 602 that can recognize the position of the QR code and a support frame 601. The support frame 601 is connected to the cross arm frame 7 or the tray 1 through screws.

[0098] Specifically in one embodiment, the barcode recognition component 6 includes a plurality of visual sensors, which are evenly distributed around the circumference of the gripping disc 2 and can recognize the position of the vulcanized QR code on the green tire in real time.

[0099] It should be noted that in addition to the QR code, the barcode can also be a barcode.

[0100] In one embodiment, the brake assembly includes a cylinder 41, and the end of the piston rod of the cylinder 41 is provided with a tooth block 42; the cylinder 41 can drive the tooth block 42 to move between a first position and a second position; in the first position, the tooth block 42 is engaged with the outer ring gear 34; in the second position, the tooth block 42 is separated from the outer ring gear 34.

[0101] In this embodiment, in the first position, the toothed block 42 is engaged with the outer ring gear 34 to position the placenta disc 2 and the tray 1 ; in the second position, the toothed block 42 is separated from the outer ring gear 34 , and the placenta disc 2 can rotate relative to the tray 1 .

[0102] In one embodiment, the rotation detection assembly 5 includes an electrical sensing element 51 provided on the tray 1 and a detection switch 53 fixed to the outer rail 91, and a rotating member 52 matching the electrical sensing element 51 is provided on the placenta 2;

[0103] and / or, the second drive assembly 35 includes a motor fixed to the tray 1;

[0104] And / or, the controller is set to PLC.

[0105] For details, please refer to Figure 3-Figure 4 The rotation detection component 5 preferably includes an electrical sensing element 51 provided on the tray 1 and a detection switch 53 fixed to the outer rail 91. A rotating part 52 matching the electrical sensing element 51 is provided on the placenta 2, which can measure the rotation angle of the placenta 2 in real time; specifically, the electrical sensing element 51 can be a displacement sensor, a proximity switch or an electronic ruler.

[0106] The detection switch 53 is specifically disposed near the fixed end 81 of the chain 8 , and the chain 8 will pass under the detection switch 53 during its movement.

[0107] The controller is preferably a PLC, which is located in an electrical cabinet on one side of the vulcanizer and is used to collect, store and feed back signals from various electrical components.

[0108] In one embodiment, a cross arm frame 7 is further included, and the tray 1 is fixed on the cross arm frame 7 ; a pull rod 71 is provided between the outer edge of the tray 1 away from the cross arm frame 7 and the cross arm frame 7 .

[0109] In this embodiment, the cross arm 7 is used to support the entire tire vulcanizer rotary tire grabber; an intermediate shaft 72 is provided at the end of the cross arm 7 away from the tray 1, and the cross arm 7 rotates around the intermediate shaft 72, which can drive the present invention to rotate around the intermediate shaft 72; a pull rod 71 is provided between the outer edge of the tray 1 away from the cross arm 7 and the cross arm 7. When grabbing the green tire, since the outer side of the grabbing disc 2 is subjected to greater force, the pull rod 71 can withstand the pulling force when grabbing the green tire, so that the entire tire grabber is maintained in a horizontal state.

[0110] The specific working process of the tire vulcanizer rotary tire gripper provided in this embodiment is as follows:

[0111] After the vulcanized QR code is affixed to the green tire, the manipulator mounted on the movable bracket drives the present invention to move to the top of the green tire with the vulcanized QR code affixed thereto and then descends to a suitable tire-grabbing position, so that the claws 21 extend into the green tire; before grasping the tire, the toothed block 42 is in the first position and the drive gear is in a braking state;

[0112] The first drive assembly 22 drives the plurality of claws 21 to move radially outward synchronously to grab the green tire, and the manipulator rises and moves to the top of the vulcanizer;

[0113] Since the position of the tire mold has been fixed before vulcanizing the tire, the position of the QR code in the tire mold is fixed. This position information is input into the controller, and the manipulator drives the green tire to move into the vulcanizer. The barcode recognition component 6 recognizes the position of the vulcanization QR code and feeds it back to the controller, which calculates the angle of rotation required for the green tire.

[0114] The toothed block 42 moves to the second position, and the second driving assembly 35 drives the driving gear to rotate to rotate the placenta grabbing disc 2. When the placenta grabbing disc 2 rotates, the outer partition 93 and the inner fence 92 are driven to rotate synchronously. Since the movable end 82 of the chain 8 is fixed to the first end of the inner fence 92, the chain 8 is driven to move together. The rotation detection assembly measures the rotation angle of the placenta grabbing disc 2 in real time. When it rotates to a predetermined angle, it stops rotating, and the toothed block 42 moves to the first position to position the placenta grabbing disc 2.

[0115] The first drive assembly 22 drives the plurality of claws 21 to retract radially inward synchronously. The claws 21 close and put down the green tire. The manipulator rises and moves the rotary tire gripper of the tire vulcanizer out of the vulcanizer, and the vulcanization process can begin.

[0116] The rotary tire gripper for the tire vulcanizer provided in this embodiment utilizes a first drive component 22 to drive a plurality of claws 21 to open or close each other so as to automatically take and place the raw tire. Before the raw tire is placed in the vulcanizer, a vulcanization QR code can be conveniently pasted on the raw tire. The barcode recognition component 6 can be used to identify the position of the vulcanization QR code on the raw tire, and the second drive component 35 can be used to drive the gripping disc 2 to rotate freely within a range of 360° relative to the tray 1 and can accurately control the rotation angle of the raw tire. When the rotation detection component 5 measures that the raw tire has rotated to the appropriate position, the raw tire can be placed in the vulcanizer for vulcanization, ensuring that the QR code can be accurately vulcanized at a specific position on the side of the raw tire, realizing the automation and unmanned operation of the entire vulcanization process, and can effectively reduce safety hazards and labor intensity. In addition, the driving force is stable, the structure is simple, the operation is reliable, and the cost is low. The barcode recognition component 6 and the rotation detection component 5 cooperate with the controller to transmit the measured data information to the operator and the controller in real time to form a closed-loop control.

[0117] The rotary tire gripper of the tire vulcanizer provided in this embodiment can center the driving plate 24 by using a number of guide wheels 25 provided on the gripping disc 2, and can limit the axial position of the driving plate 24 by using a number of limit blocks 26 provided on the gripping disc 2, thereby ensuring that the driving plate 24 rotates stably relative to the gripping disc 2.

[0118] The rotary tire gripper of the tire vulcanizer provided in this embodiment utilizes the pull rod 71 provided between the cross arm 7 and the tray 1 to withstand the tension when gripping the green tire, ensuring that the entire tire gripper always remains in a horizontal state.

[0119] The rotary tire gripper of the tire vulcanizer provided in this embodiment has a hollow structure and a hollow cavity, which can conveniently place the green tire into the vulcanizer and can also conveniently place the green tire through the bladder.

[0120] For larger engineering tires and jumbo tires, the tire embryo is heavy, the hardness of the raw tire is low, the shaping is poor, and there will be a large degree of sagging. The bladder on the vulcanizer stretches in the height direction and extracts the internal gas, so that the bladder shrinks on the central mechanism. For large tires, the bladder used is also large, and the vertical stretching amount is also large. At this time, the tire grabber can be placed on the outside of the bladder to grab the tire embryo, and the tire embryo can be placed steadily on the mold and then retracted.

[0121] In addition, if Figure 1 and Figure 2 As shown, the rotary drag chain device is located at the edge of the placenta gripping disc 2 and is distributed around the hollow cavity, so it does not affect the function of the hollow cavity.

[0122] The rotary tire gripper for a tire vulcanizer provided in this embodiment can meet the needs of tires of different specifications, is easy to operate, and has strong versatility. It can effectively improve the efficiency of green tire installation by 30% and save the labor cost of green tire installation by 50%.

[0123] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by this application.

Claims

1. A rotary tire gripper for a tire vulcanizer, characterized in that: include: Tray (1); A tire grabber comprises a tire grabber disc (2), the tire grabber disc (2) being rotatably mounted on the tray (1) and capable of rotating around its axis, the tire grabber disc (2) being provided with a plurality of claws (21) and a first drive assembly (22), the first drive assembly (22) being capable of driving the plurality of claws (21) to open or close relative to each other, and the first drive assembly (22) being connected to a power supply circuit or an air circuit; A rotary drag chain device comprises a chain (8) and a track assembly, wherein the chain (8) has a fixed end (81) and a movable end (82), wherein the fixed end (81) is fixed relative to the tray (1), and the movable end (82) rotates with the placenta gripping disc (2), and the chain (8) is arranged on the track assembly, and the chain (8) is used for routing the power supply circuit or the gas circuit.

2. The rotary tire gripper of the tire vulcanizer according to claim 1, characterized in that: The track assembly comprises an outer fence (91), an inner fence (92), an outer partition (93) and an inner partition (94); the outer fence (91) comprises a first arc-shaped wall panel (911); the inner fence (92) comprises a second arc-shaped wall panel (921); the outer partition (93) and the inner partition (94) are both arc-shaped; the radius of the first arc-shaped wall panel (911) is R1, the radius of the outer partition (93) is R2, the radius of the inner partition (94) is R3, and the radius of the second arc-shaped wall panel (921) is R4, R1>R2>R3>R4; the outer fence (91) and the inner partition are (94) is fixed relative to the tray (1), and at least part of the outer fence (91) and the inner partition (94) are distributed on both sides of a straight line passing through the center of the circle of the placenta grabbing disc (2), the outer partition (93) and the inner fence (92) are respectively connected to the placenta grabbing disc (2), and at least part of the outer partition (93) and the inner fence (92) are distributed on both sides of a straight line passing through the center of the circle of the placenta grabbing disc (2), the fixed end (81) is fixed to the inner side of the first end of the outer fence (91), and the movable end (82) of the chain (8) is fixed to the first end of the inner fence (92) toward one side of the outer fence (91); The placenta gripping disc (2) has an initial position, in which the middle of the chain (8) is folded in half, and the first end of the inner fence (92) is close to the first end of the outer fence (91); After the placenta gripping disc (2) rotates from the initial position to the first direction by a preset angle, the chain (8) is located between the inner fence (92) and the inner partition (94); After the placenta gripping disc (2) rotates from the initial position to the second direction by a preset angle, the chain (8) is located between the outer partition (93) and the outer fence (91).

3. The rotary tire gripper of the tire vulcanizer according to claim 2, characterized in that: The tire vulcanizer rotary tire gripper also includes: A support assembly comprises an inner ring (31) and an outer ring (32), wherein the inner ring (31) is fixed on the tray (1), the placenta gripping disc (2) is fixed on the outer ring (32), a plurality of rolling bodies (33) are embedded between the inner ring (31) and the outer ring (32), and an outer ring gear (34) is provided on the outer circumference of the outer ring (32); a driving gear meshing with the outer ring gear (34); a second driving assembly (35), connected to the driving gear, for driving the driving gear to rotate; A protective cover (10) is arranged outside the support assembly, and the outer fence (91) and the inner partition (94) are fixedly connected to the protective cover (10).

4. The rotary tire gripper of a tire vulcanizer according to claim 3, characterized in that: The outer wall of the outer fence (91) is connected to the shield (10) via a plurality of first support members (95); The inner wall of the inner fence (92) is connected to the placenta gripping disc (2) via a plurality of second support members (96); The outer partition (93) is connected to the placenta gripping disc (2) via a plurality of third support members (97), and the third support members (97) are suspended above the inner partition (94) or the inner fence (92); The inner partition (94) is connected to the shield (10) through a plurality of fourth support members (98), and the fourth support member (98) includes a first connection portion (981) connected to the outer wall of the inner partition (94), and a horizontal support portion (982) connected to the lower end of the first connection portion (981) and extending radially outward.

5. The rotary tire gripper of a tire vulcanizer according to claim 3, characterized in that: The claw piece (21) is provided with a slider (212), the placenta grabbing disc (2) is provided with a guide rail (23) corresponding to a plurality of the claw pieces (21), and the slider (212) is movably provided on the guide rail (23); the placenta grabbing disc (2) is provided with a driving plate (24) rotatably connected thereto, and the driving plate (24) is provided with a plurality of guide holes (241) corresponding to the claw pieces (21); the claw piece (21) is provided with a guide block (211), and the guide block (211) extends into the guide hole (241); the first driving assembly (22) can drive the driving plate (24) to rotate relative to the placenta grabbing disc (2); when the driving plate (24) rotates relative to the placenta grabbing disc (2), the guide hole (241) can guide the guide block (211) to move, so that the claw piece (21) moves radially.

6. The rotary tire gripper of the tire vulcanizer according to claim 5, characterized in that: The driving plate (24) is provided with an inner hole (242) coaxially arranged therewith; the placenta gripping disc (2) is provided with a plurality of circumferentially distributed guide wheels (25), the wheel surfaces of the guide wheels (25) being in contact with the inner wall surface of the inner hole (242); And / or, the driving plate (24) is provided on the upper surface of the gripping disc (2), the gripping disc (2) is provided with a plurality of limit blocks (26) distributed along the outer edge of the driving plate (24), the limit blocks (26) extend to the top of the driving plate (24) and have a gap with the upper surface of the driving plate (24); and / or, the driving plate (24) is rotatably connected to the placenta gripping disc (2) via a bearing; And / or, the guide hole (241) is arc-shaped and forms an angle with the circumference of the drive plate (24); and / or, the plurality of claws (21) are evenly distributed along the circumference; and / or, part of the claw piece (21) extends from the bottom of the tray (1); and / or, the placenta gripping disc (2) and the driving plate (24) are both arranged horizontally; and / or, the guide block (211) is clearance-matched with the two long sides of the guide hole (241); And / or, the first drive assembly (22) is configured as a retractable structure; one end of the first drive assembly (22) is hinged to the drive plate (24), and the other end of the first drive assembly (22) is hinged to the placenta gripping disc (2).

7. The tire vulcanizer rotary tire gripper according to any one of claims 3 to 6, characterized in that: The tire vulcanizer rotary tire gripper also includes: a brake assembly, the brake assembly being arranged on the tray (1), and the brake assembly being capable of positioning the fetus gripping disc (2) and the tray (1); A rotation detection assembly (5), the rotation detection assembly (5) being used to measure the rotation position of the placenta gripper (2); A barcode recognition component (6), the barcode recognition component (6) being used to recognize the position of a barcode on the sidewall of a green tire; A controller is connected to the first drive component (22), the second drive component (35), the brake component, the rotation detection component (5) and the barcode recognition component (6) respectively.

8. The rotary tire gripper of a tire vulcanizer according to claim 7, characterized in that: The brake assembly includes a cylinder (41), and a toothed block (42) is provided at the end of the piston rod of the cylinder (41); the cylinder (41) can drive the toothed block (42) to move between a first position and a second position; when in the first position, the toothed block (42) is engaged with the outer ring gear (34); when in the second position, the toothed block (42) is separated from the outer ring gear (34).

9. The rotary tire gripper of a tire vulcanizer according to claim 7, characterized in that: The rotation detection assembly (5) includes an electrical sensing element (51) provided on the tray (1) and a detection switch (53) fixed to the outer fence (91); the placenta gripping disc (2) is provided with a rotating member (52) matching the electrical sensing element (51); and / or, the second drive assembly (35) comprises a motor fixed to the tray (1); And / or, the controller is configured as a PLC.

10. The rotary tire gripper of a tire vulcanizer according to claim 1, characterized in that: It also includes a cross arm frame (7), and the tray (1) is fixed on the cross arm frame (7); a pull rod (71) is provided between the outer edge of the tray (1) away from the cross arm frame (7) and the cross arm frame (7).

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