A rotary double-station tread winding station

Abstract

The application provides a rotary double-station tire tread winding work station and belongs to the technical field of tire forming equipment. The rotary double-station tire tread winding work station comprises a rotary work station, a protractor fixed on a supporting bottom plate, a rotary box arranged on the protractor, two main shaft assemblies arranged on the upper portion of the rotary box and located on the opposite sides of the rotary box to form double stations, and two winding drums connected to the two main shaft assemblies respectively. The application can realize uninterrupted tire blank winding, one station works and the other station is ready for winding, the time for replacing the tire blank in the single-station mode is saved, and the work efficiency is at least improved by 40% in the same time.

Description

Technical Field

[0001] The invention belongs to the technical field of tire forming equipment, and in particular relates to a rotary double-station tread winding workstation. Background Art

[0002] There are two main methods for tire tread building: one is tread lamination: an extruder extrudes a tread strip with a cross-sectional dimension that meets the tire factory's process requirements, cuts it to a fixed length, and then bonds the tread to the tire blank. The strip is then rotated one circle and rolled to form the joint. The other is tread winding: an extruder extrudes a narrow rubber strip, which is then spirally wound onto the tire blank in multiple layers. Typically, one winding machine is equipped with one forming machine. For tires under 25 inches, tread lamination is the primary method due to mass production. However, for tires over 25 inches, tread winding is generally used, as extrusion and calendaring equipment cannot produce a tread shape that meets the required width. Furthermore, due to their heavy weight, manual lamination is difficult to handle, so tread winding is generally used.

[0003] Compared with lamination, tread winding has the following advantages: (1) It can flexibly realize small-batch production of multiple tire specifications to meet the personalized needs of users; (2) According to surveys, tire blowouts account for 80% of high-speed accidents. Tread winding can solve the problems of lap joints, bulging and delamination between the tread and the carcass, and improve tire safety; (3) It can improve the density and dynamic balance of the tire tread.

[0004] In recent years, driven by the demand for improved tire quality, tread winding has been adopted not only for radial tires but also for racing and aircraft tires. Existing tread winding equipment consists of a winding machine paired with a tire building machine. During operation, the winding machine winds the tire carcass against a building drum, while the winding machine waits while the remaining tire components are attached. This results in long downtime and poor winding efficiency. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems existing in the above-mentioned prior art and provide a rotary double-station tread winding workstation with a double-station design. While one station is working, the other station is used to load and unload the tire blank. After one station is completed, it can switch to another station to work, achieving seamless connection and improving work efficiency.

[0006] The present invention is achieved through the following technical solutions:

[0007] The present invention provides a rotary double-station tread winding workstation, comprising:

[0008] The rotary workstation includes a supporting base plate, an indexer is fixed on the supporting base plate, a rotary box is provided on the indexer, two spindle assemblies are provided on the upper part of the rotary box, and the two spindle assemblies are respectively located on opposite sides of the rotary box to form a double station;

[0009] The two winding drums are respectively connected to the two main shaft assemblies.

[0010] A further improvement of the present invention is:

[0011] The rotating box includes a bottom plate, on which a front wall plate and a rear wall plate are arranged opposite to each other, and the ends of the front wall plate and the rear wall plate are connected respectively by a left wall plate and a right wall plate, and two cylinders are arranged between the upper parts of the front wall plate and the rear wall plate, and the ends of the cylinders are respectively fixed with spherical roller bearing seats;

[0012] The bottom plate of the rotating box is fixedly connected to the indexer through screws and positioning pins, and the rotating box is driven to rotate 180 degrees by the rotation of the indexer.

[0013] A further improvement of the present invention is:

[0014] The spindle assembly includes a spindle and a core shaft arranged in the spindle. The spindle and the core shaft are connected through a deep groove ball bearing. The spindle passes through the cylinder on the rotating box and is fixed on the cylinder through a spherical roller bearing.

[0015] A further improvement of the present invention is:

[0016] One end of the main shaft and the core shaft is connected to the winding drum, the other end of the core shaft extends out of the other end of the main shaft, and the part of the core shaft extending out of the main shaft is provided with a core shaft synchronous pulley and an electromagnetic clutch in sequence from right to left;

[0017] The mandrel synchronous pulley is fixed on the mandrel through a bearing, the mandrel synchronous pulley is connected to the mandrel rotation servo motor through a mandrel pulley, and the mandrel rotation servo motor is fixed on the rotating box;

[0018] One end of the electromagnetic clutch is mounted on the core shaft through a keyway, and the other end is mounted on the core shaft synchronous pulley through a flange.

[0019] A further improvement of the present invention is:

[0020] An airbag mounting seat is fixed on the core shaft at the right side of the core shaft synchronous pulley through a keyway, and the airbag is fixed to the airbag mounting seat through a flange screw;

[0021] A friction ring is mounted on the main shaft through a keyway, and the airbag is sleeved on the outer side of the friction ring. When the interior of the airbag expands, the inner cavity of the airbag contacts the friction ring, and when the interior of the airbag shrinks, the airbag is disengaged from the friction ring.

[0022] The part of the core shaft extending out of the main shaft is axially provided with an internal center hole, the center hole is connected to the airbag, and a rotary joint is installed at one end of the core shaft extending out of the main shaft, the rotary joint is connected to the center hole.

[0023] A further improvement of the present invention is:

[0024] A main shaft synchronous pulley is provided on the main shaft near the friction ring. The main shaft synchronous pulley is connected to the main shaft rotation servo motor through a main shaft pulley. The main shaft rotation servo motor is fixed on the rotating box.

[0025] A further improvement of the present invention is:

[0026] Two air holes are provided on the main shaft along the circumferential direction on the right side of the main shaft synchronous pulley, and two air vents are provided on the main shaft along the axial direction and close to the outer wall. The air vents are connected to the air holes, and the air holes extend from the position connected to the air holes to the end of the main shaft away from one end of the main shaft synchronous pulley.

[0027] A further improvement of the present invention is:

[0028] A rotating Glyer ring is provided on the main shaft at the position of the air hole. The rotating Glyer ring includes an inner ring and an outer ring. The inner ring is sleeved on the main shaft and fixed to the main shaft by a step and a round nut. O-rings are arranged at both ends and the middle of the inner wall of the inner ring to separate the air path. The outer ring is mounted on the outer wall of the inner ring through a bearing.

[0029] The outer ring is fixed on the rotating box, and O-shaped rotating sealing rings are arranged at both ends and the middle of the inner wall of the outer ring to separate the air path;

[0030] The two air holes are respectively connected with an air source connector, and the air source connector extends out of the outer ring so that air can be ventilated to the air hole and the vent hole through the air source connector.

[0031] A further improvement of the present invention is:

[0032] The winding drum comprises a winding drum main shaft and a winding drum core shaft arranged in the winding drum main shaft, and both ends of the winding drum main shaft and the winding drum core shaft are connected by bearings respectively;

[0033] The main shaft in the main shaft assembly is connected to the main shaft of the winding drum via a positioning pin, and the rotation of the main shaft in the main shaft assembly drives the main shaft of the winding drum to rotate;

[0034] The core shaft in the main shaft assembly is connected to the core shaft of the winding drum via a spline, and the rotation of the core shaft in the main shaft assembly drives the core shaft of the winding drum to rotate.

[0035] A further improvement of the present invention is:

[0036] The rotary double-station tread winding workstation further includes an exhaust licker-in structure, which is arranged on one side of the rotary workstation and below one of the winding drums.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] The present invention can realize uninterrupted winding of the tire blank. While one station is working, the other station is ready for winding. As a whole, the time for changing the tire blank at a single station is saved. Under the same time, the working efficiency is improved by at least 40%.

[0039] The workstation of the present invention is provided with an exhaust licker-in structure, which performs puncture immediately after winding is completed, thereby facilitating the exhaust of air inside the tire blank during the tire vulcanization process. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a structural schematic diagram of a rotary double-station tread winding workstation of the present invention;

[0041] Figure 2 It is a structural diagram of the rotary workstation;

[0042] Figure 3 It is a structural diagram of the rotating box;

[0043] Figure 4 is a structural diagram of the main shaft assembly;

[0044] Figure 5 It is a structural diagram of the winding drum;

[0045] Figure 6 It is a structural schematic diagram of the exhaust licker-in device;

[0046] Figure 7 It is a structural schematic diagram of the exhaust licker-in assembly.

[0047] In the figure,

[0048] 1. Rotating workstation, 2. Winding drum, 3. Exhaust licker-in structure,

[0049] 4. Support base plate, 5. Indexer, 6. Rotating box, 7. Spindle assembly,

[0050] 8. Bottom plate, 9. Front wall plate, 10. Back wall plate, 11. Left wall plate, 12. Right wall plate, 13. Cylinder,

[0051] 14. Spindle, 15. Mandrel, 16. Deep groove ball bearing, 17. Spherical roller bearing, 18. Mandrel synchronous pulley, 19. Electromagnetic clutch, 20. Airbag mounting seat, 21. Airbag, 22. Friction ring, 23. Center hole, 24. Rotary joint, 25. Spindle synchronous pulley, 26. Rotating grid ring,

[0052] 27. Winding drum main shaft, 28. Winding drum core shaft, 29. Left chuck, 30. Right chuck,

[0053] 31. Lifting frame, 32. Guide rail, 33. Ball screw, 34. Connecting plate, 35. Synchronous pulley, 36. First servo motor, 37. Support, 38. Linear module, 39. Exhaust licker-in assembly, 40. Second servo motor,

[0054] 41. Connecting base plate, 42. Cylinder seat, 43. Single ear shaft support, 44. First pin, 45. Cylinder with guide rod, 46. Support, 47. Adjusting plate, 48. Screw, 49. Taker-in roller, 50. Second pin. DETAILED DESCRIPTION

[0055] The present invention is further described in detail below with reference to the accompanying drawings:

[0056] The racing tire tread winding process features a winding station that completely separates the tread application process from the other tire-building steps. Operations such as wire bead placement, cord tube installation, front and back wrapping, compaction, and sidewall rubber application are completed on the tire-building machine. After these steps are complete, the tire is removed from the tire-building machine and placed on the winding station for tread application. Because these two operations are separate, the efficiency of both the tire-building machine and the tire-building station can be maximized with appropriate coordination.

[0057] Since the winding workstation requires the process of loading the tire blank, winding the tread, and unloading the tire blank, in order to improve production efficiency, the present invention designs the winding workstation into a double-station 180° rotating mode to perform tread winding on the tire blank, saving time and improving production efficiency.

[0058] like Figure 1 and Figure 2 As shown, the present invention provides a rotary double-station tread winding workstation, comprising:

[0059] The rotary workstation 1 includes a support base 4, on which an indexer 5 is fixed, a rotary box 6 is provided on the indexer 5, and two spindle assemblies 7 are provided on the upper part of the rotary box 6. The two spindle assemblies 7 are respectively located on opposite sides of the rotary box 6 to form a double station;

[0060] Two winding drums 2 are connected to two main shaft assemblies 7 respectively;

[0061] The exhaust licker-in structure 3 is arranged on one side of the rotary workstation 1 and is located below one of the winding drums 2 .

[0062] When the tread winding workstation of the present invention is used for tread winding, one workstation is responsible for tread winding and molding, and the other workstation is responsible for loading and unloading the tire blank. After completing the winding work of one of the workstations, the rotating workstation is rotated 180°. At this time, the workstation for loading and unloading the tire blank is rotated to the winding position, and the workstation responsible for the winding work is rotated to the loading and unloading position of the tire blank. This cycle is repeated. Compared with the existing winding machine, the present invention saves the time for loading and unloading the tire blank, so that it will not be in a waiting state for a long time, greatly improving production efficiency.

[0063] When rotating and interchanging two workstations, the rotary workstation requires high position accuracy when rotating 180° to ensure that it does not cause rotational misalignment and affect production efficiency. The indexer in the present invention uses the Sankyo Alpha AD series mechanical indexer with cam technology. It controls starting and stopping through a timing cam, sensor, and inverter, eliminating the need for clutches and brakes, thereby reducing costs and requiring minimal maintenance. It has the most essential characteristics: the output shaft completes one workstation (one rotation and one pause) for each rotation (360°) of the gear reduction motor on the indexer. When the reduction motor rotates more than 360°, it can still maintain the workstation position unchanged. Its 1DWELL indexing accuracy is ±20 seconds, and its repeatability is 20 seconds. The mechanical indexer in the present invention is a prior art device and will not be described in detail here.

[0064] As a preferred embodiment of the present invention, Figure 3 As shown, the rotating box 6 includes a base plate 8, on which a front wall panel 9 and a rear wall panel 10 are arranged opposite to each other. The two ends of the front wall panel 9 and the rear wall panel 10 are connected by a left wall panel 11 and a right wall panel 12 respectively. Two cylinders 13 are arranged between the upper parts of the front wall panel 9 and the rear wall panel 10, and spherical roller bearing seats are fixed at both ends of the cylinder 13.

[0065] The bottom plate of the rotating box 6 is fixedly connected to the indexer 5 by screws and positioning pins, and the rotation of the indexer 5 drives the rotating box 6 to rotate 180 degrees.

[0066] like Figure 4 As shown, the spindle assembly 7 includes a spindle and a core shaft 15 arranged in the spindle 14. The spindle 14 and the core shaft 15 are connected by a deep groove ball bearing 16. The spindle 14 passes through the cylinder 13 on the rotating box 6 and is fixed to the cylinder 13 through a spherical roller bearing 17. Specifically, two spherical roller bearings 17 are sleeved on the spindle 14, and the two spherical roller bearings 17 are respectively mounted on the spherical roller bearing seats at both ends of the cylinder 13.

[0067] One end of the main shaft 14 and the mandrel 15 is connected with the winding drum 2, the other end of the mandrel 15 extends out of the other end of the main shaft 14, the part of the mandrel 15 extending out of the main shaft 14 is sequentially provided with the mandrel synchronous pulley 18 and the electromagnetic clutch 19 from right to left, wherein the mandrel synchronous pulley 18 is fixed on the mandrel 15 through a bearing, the mandrel synchronous pulley 18 is connected with the mandrel rotation servo motor through the mandrel pulley, the mandrel rotation servo motor is fixed on the rotating box 6, one end of the electromagnetic clutch 19 is installed on the mandrel 15 through a key groove, the other end is installed on the mandrel synchronous pulley 18 through a flange plate, when the mandrel rotation servo motor is needed to drive the mandrel 15 to rotate, the left half of the electromagnetic clutch 19 is attracted to the right half through the 24V DC power supply, so that the power of the mandrel rotation servo motor is transmitted to the mandrel 15, and the electromagnetic clutch 19 is automatically separated after power off, which does not affect the servo motor when the mandrel 15 rotates.

[0068] The air bag mounting seat 20 is fixed on the mandrel 15 through a key groove on the right side of the mandrel synchronous pulley 18, the air bag 21 is fixed on the air bag mounting seat 20 through a flange screw, a friction ring 22 is installed on the main shaft 14 through a key groove, the air bag 21 is sleeved on the outside of the friction ring 22, when the inside of the air bag 21 expands, the inside of the air bag 21 is in contact with the friction ring 22, when the inside of the air bag 21 shrinks, the air bag 21 is separated from the friction ring 22, the part of the mandrel 15 extending out of the main shaft 14 is provided with an internal center hole 23 in the axial direction, the center hole 23 is in communication with the air bag 21, and a rotary joint 24 is installed at the end of the part of the mandrel 15 extending out of the main shaft 14, the rotary joint 24 is in communication with the center hole 23, the air source can be connected to the air bag 21 through the rotary joint 24 and the center hole 23, the inside of the air bag 21 is shrunk or expanded by connecting or disconnecting the air source, the inside of the air bag 21 is in contact with the friction ring 22 to ensure the synchronous rotation of the mandrel 15 and the main shaft 14.

[0069] The main shaft synchronous pulley 25 is arranged on the main shaft 14 near the friction ring 22, the main shaft synchronous pulley 25 is connected with the main shaft rotation servo motor through the main shaft pulley, and the main shaft rotation servo motor is fixed on the rotating box 6.

[0070] Two air holes are arranged on the main shaft 14 in the circumferential direction on the right side of the main shaft synchronous pulley 25, two air holes are arranged on the main shaft in the axial direction and close to the outer wall, the air holes are in communication with the air holes, and the air holes extend from the position in communication with the air holes to the end of the end of the main shaft away from the main shaft synchronous pulley 25.

[0071] A rotating Gly ring 26 is provided at the position of the air hole on the main shaft 14. The rotating Gly ring 26 includes an inner ring and an outer ring, wherein the inner ring is sleeved on the main shaft and fixed to the main shaft 14 by steps and round nuts, and is used to seal the main shaft 14. O-rings are arranged at both ends and the middle position of the inner wall of the inner ring to separate the air path. The outer ring is installed on the outer wall of the inner ring through bearings. The outer ring is fixed on the rotating box, and O-rings are arranged at both ends and the middle position of the inner wall of the outer ring to separate the air path. When working, the inner ring rotates with the main shaft, and the outer ring is fixed on the rotating box and does not move, and is connected to the main shaft through two external air paths.

[0072] Among them, the outer ring is an O-type sealing ring and the inner ring is a rotating sealing ring.

[0073] The two air holes are respectively connected with an air source connector, and the air source connector extends out of the outer ring so that air can be ventilated to the air hole and the vent hole through the air source connector.

[0074] As a preferred embodiment of the present invention, Figure 5 As shown, the winding drum 2 includes a winding drum main shaft 27 and a winding drum core shaft 28 disposed within the winding drum main shaft 27. The winding drum main shaft 27 and the winding drum core shaft 28 are connected at both ends by bearings. The main shaft 14 in the main shaft assembly 7 is connected to the winding drum main shaft 27 by a locating pin. The rotation of the main shaft 14 in the main shaft assembly 7 drives the winding drum main shaft 27 to rotate. The core shaft 15 in the main shaft assembly 7 is splined to the winding drum core shaft 28. The rotation of the core shaft 15 in the main shaft assembly 7 drives the winding drum core shaft 28 to rotate. The winding drum core shaft 28 is a ball screw to ensure the life of the winding drum.

[0075] A left chuck 29 and a right chuck 30 are slidingly provided on the winding drum main shaft 27. Specifically, a slider is connected to the bottom of the end of the left chuck 29 and the right chuck 30 away from each other. A straight slot is opened on the left and right sides of the winding drum main shaft 27. The two sliders pass through the two straight slots and are connected to the winding drum core shaft 28 respectively. The winding drum core shaft 28 is a left-right rotating ball screw structure. During the rotation of the winding drum core shaft 28, the two sliders will drive the horizontal sliding of the two sliders, so that the left and right chucks can be opened or closed.

[0076] The left chuck 29 and the right chuck 30 have the same structure and are symmetrically arranged with each other. Taking the left chuck 29 as an example, the left chuck includes a left half-drum flange of the left chuck and a cylinder fixed on the left chuck. A vertical guide rail is fixed on the left half-drum flange of the left chuck. The piston rod of the cylinder is connected to a guide rail at an angle of 28° to the horizontal plane. The sector blocks are respectively installed on the guide rail at an angle of 28° to the horizontal plane and the vertical linear guide rail through sliders. The outside of the left chuck and the sector block is entirely covered with a capsule. Under the action of the cylinder, the sector block can expand along the fall surface. When the air path is disconnected, the force of the capsule covered outside the sector block causes the sector block to shrink.

[0077] Two air holes are provided on the winding drum main shaft 27 along the axial direction, which are respectively connected to the two air holes on the main shaft assembly 7. One of the air holes extends from one end of the winding drum main shaft 27 to the other end and is connected to the cylinder through an air pipe for providing power to the cylinder. The other air hole extends from one end of the winding drum main shaft 27 to the middle position of the winding drum main shaft, and is connected to the air outlet hole provided in the middle position of the winding drum main shaft 27, and is used to inflate the interior of the preformed tire.

[0078] The main structural features of the workstation components are as follows:

[0079] (1) The two main shaft assemblies are respectively arranged on the opposite sides of the rotating box. The main shaft in the main shaft assembly is connected to the main shaft of the winding drum by a locating pin. The rotation of the main shaft in the main shaft assembly drives the main shaft of the winding drum to rotate. The core shaft in the main shaft assembly is connected to the core shaft of the winding drum by a spline. The rotation of the core shaft in the main shaft assembly drives the core shaft of the winding drum to rotate. When the main shaft of station I is in the winding working position, the main shaft of station II is in the loading and unloading working position of the tire blank.

[0080] (2) The front and rear self-aligning ball bearing seats on the two main shafts in the main shaft assembly are fixedly installed on the rotating box, the core shaft is connected to the main shaft deep groove ball bearing, and the main shaft rotation servo motor drives the winding drum connected to the main shaft to rotate through the synchronous belt.

[0081] (3) After the tire blank is manually placed on the left and right chucks of the winding drum, the core shaft is driven by the core shaft rotation servo motor to rotate the synchronous belt, which is spline-connected to the core shaft of the winding drum, and the left and right chucks of the winding drum move axially, thereby realizing the pre-forming of the tire blank before winding through the positioning of the left and right chucks and the tire blank steel ring.

[0082] (4) When winding the tire blank, the core shaft rotation servo motor needs to be disconnected from the core shaft, which is achieved through an electromagnetic clutch.

[0083] (5) Considering the life of the core shaft, the winding drum core shaft adopts a ball screw to convert the rotational motion of the core shaft into the linear motion of the left and right chucks.

[0084] (6) Since the ball screw does not have a self-locking function, the preformed tire blank has a reaction force on the nut of the ball screw when it is inflated. When the core shaft rotation servo motor is disconnected, the winding drum core shaft will rotate and the left and right chucks will move outward. Therefore, an airbag structure is designed to lock the main shaft and core shaft of the spindle assembly during winding operation, and the airbag is inflated through the rotary joint at the end of the core shaft.

[0085] (7) In order to smoothly place the tire blank, the left and right chuck clamps need to be 30mm smaller than the minimum diameter of the tire blank steel ring, and then the clamps need to be expanded until the steel ring is clamped on the clamps and sealed. Therefore, when expanded in the natural state, the clamps need to be about 4mm larger than the theoretical value of the steel ring diameter. The left and right chuck clamps require the same air path of the main shaft and a proportional valve to accommodate tire blanks of different sizes.

[0086] As a preferred embodiment of the present invention, in order to exhaust the air inside the tire during the vulcanization process and between the layers during the winding process, it is necessary to puncture the tread sidewall after the winding process is completed. Therefore, an exhaust licker-in assembly is designed below the winding drum of the winding workstation. To accommodate changes in tire cross-sectional thickness, it is divided into left and right pneumatically driven licker-in rollers. To accommodate changes in width of different specifications, the left and right licker-in rollers are driven by servo motors to drive electric cylinders to achieve computer-input width management. Because the winding workstation is a dual-station type, the licker-in rollers need to accommodate changes in tire outer diameter from 13 inches to 21 inches. Therefore, the entire licker-in roller assembly is raised and lowered by a servo motor-driven ball screw: each time the forming drum switches positions, the licker-in roller assembly must descend to the lowest point to clear rotation space, and then automatically rise to the position required for the tire according to the recipe.

[0087] like Figure 6 As shown, the exhaust licker-in device 3 is provided with a licker-in lifting assembly and a licker-in assembly. The licker-in lifting assembly is used to lift and lower the licker-in assembly as a whole, lifting the entire licker-in assembly to a suitable specification position during operation, and lowering the licker-in assembly to a waiting position when the turntable rotates after the tread winding is completed. The licker-in lifting assembly includes a lifting frame 31, one side wall of which is provided with two parallel and vertical guide rails 32, a ball screw 33 is provided on the lifting frame 31 and located between the two guide rails 32, two sliders are fixed to the back of a connecting plate 34, and the two sliders are respectively arranged in the two guide rails 32. The connecting plate 34 is also connected to the ball screw 33, and a synchronous pulley 35 is provided on the top of the ball screw 33. The synchronous pulley 35 is connected to a first servo motor 36 fixed to the top of the lifting frame 31 via a pulley. The first servo motor 36 drives the ball screw 33 to rotate, thereby driving the connecting plate 34 to move up and down on the guide rails 32.

[0088] The licker-in assembly includes a support 37, one end of which is fixed to a connecting plate 34, and the support 37 is driven to move up and down by the up and down movement of the connecting plate 34. Two linear modules 38 are fixed on the support 37 along the length direction, and two exhaust licker-in assemblies 39 are slidably arranged on the linear module 38. A second servo motor 40 is provided at one end of the linear module 38, and a single ball screw and a single guide rail are integrated on the linear module 38. The ball screw input shaft and the output shaft of the second servo motor 40 are connected through a coupling, and the ball screw inside the linear module 38 is driven to rotate by the second servo motor 40, thereby driving the exhaust licker-in assembly 39 to move horizontally on the linear module 38.

[0089] like Figure 7 As shown, the exhaust licker-in assembly 39 includes a connecting base plate 41, which is slidably arranged on the linear module 38. A cylinder seat 42 is fixed to the connecting base plate 41. The cylinder seat 42 is rotatably connected to the bottom of a cylinder with a guide rod 45. A licker-in roller 49 is connected to the piston rod of the cylinder with a guide rod 45. The licker-in roller 49 extends or retracts under the drive of the cylinder with a guide rod 45; a clamping seat 46 is provided on the upper part of the cylinder with a guide rod 45, and a rotatable support is provided on the connecting base plate 41 away from the cylinder seat 42. The support member is connected to the clamp seat 46. The support member includes a fixed block fixed on the connecting base plate 41. One side of the fixed block is connected to an adjustment plate 47 through a second pin shaft 50. A straight slot hole is opened on the adjustment plate 47. A screw 48 passes through the straight slot hole and presses on the clamp seat 46 to realize the connection between the support member and the clamp seat 46. When the angle of the licker-in roller 49 needs to be adjusted, the screw on the adjustment plate 47 is loosened, the cylinder with guide rod 45 is pulled to a suitable position, and then the screw 48 is tightened to rotate the licker-in roller 49 to a suitable angle.

[0090] The cylinder seat 42 is rotatably connected to the bottom of the guide rod cylinder 45. Specifically, a single ear shaft support 43 is provided at the bottom of the guide rod cylinder 45. The single ear shaft support 43 is installed on the cylinder seat 42 through a first pin shaft 44. The single ear shaft support 43 can rotate around the pin shaft 44 by a certain angle.

[0091] In the description of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0092] In the description of the present invention, unless otherwise specified, the terms "upper", "lower", "left", "right", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0093] The above technical solution is only one embodiment of the present invention. For those skilled in the art, it is easy to make various types of improvements or modifications based on the principles disclosed in the present invention, and it is not limited to the technical solution described in the above specific embodiments of the present invention. Therefore, the above description is only preferred and does not have a restrictive meaning.

Claims

1. A rotary double-station tread winding workstation, characterized in that: include: The rotary workstation includes a supporting base plate, an indexer is fixed on the supporting base plate, a rotary box is provided on the indexer, two spindle assemblies are provided on the upper part of the rotary box, and the two spindle assemblies are respectively located on opposite sides of the rotary box to form a double station; two winding drums, respectively connected to the two spindle assemblies; The rotating box includes a bottom plate, on which a front wall plate and a rear wall plate are arranged opposite to each other, and the ends of the front wall plate and the rear wall plate are connected by a left wall plate and a right wall plate respectively. Two cylinders are provided between the upper parts of the front wall plate and the rear wall plate, and the ends of the cylinders are respectively fixed with a spherical roller bearing seat; the bottom plate of the rotating box is fixedly connected to the indexer by screws and positioning pins, and the rotation of the indexer drives the rotating box to rotate 180 degrees; The spindle assembly includes a spindle and a core shaft arranged in the spindle, the spindle and the core shaft are connected by a deep groove ball bearing, and the spindle passes through the cylinder on the rotating box and is fixed on the cylinder by a spherical roller bearing; One end of the main shaft and the core shaft is connected to the winding drum, and the other end of the core shaft extends out of the other end of the main shaft. The part of the core shaft extending out of the main shaft is provided with a core shaft synchronous pulley and an electromagnetic clutch from right to left; the core shaft synchronous pulley is fixed on the core shaft through a bearing, and the core shaft synchronous pulley is connected to the core shaft rotation servo motor through a core shaft pulley, and the core shaft rotation servo motor is fixed on the rotating box; one end of the electromagnetic clutch is installed on the core shaft through a keyway, and the other end is installed on the core shaft synchronous pulley through a flange.

2. The rotary double-station tread winding workstation according to claim 1, characterized in that: An airbag mounting seat is fixed on the core shaft at the right side of the core shaft synchronous pulley through a keyway, and the airbag is fixed to the airbag mounting seat through a flange screw; A friction ring is mounted on the main shaft through a keyway, and the airbag is sleeved on the outer side of the friction ring. When the interior of the airbag expands, the inner cavity of the airbag contacts the friction ring, and when the interior of the airbag shrinks, the airbag is disengaged from the friction ring. The part of the core shaft extending out of the main shaft is axially provided with an internal center hole, the center hole is connected to the airbag, and a rotary joint is installed at one end of the core shaft extending out of the main shaft, the rotary joint is connected to the center hole.

3. The rotary double-station tread winding workstation according to claim 2, characterized in that: A main shaft synchronous pulley is provided on the main shaft near the friction ring. The main shaft synchronous pulley is connected to the main shaft rotation servo motor through a main shaft pulley. The main shaft rotation servo motor is fixed on the rotating box.

4. The rotary double-station tread winding workstation according to claim 3, characterized in that: Two air holes are provided on the main shaft along the circumferential direction on the right side of the main shaft synchronous pulley, and two air vents are provided on the main shaft along the axial direction and close to the outer wall. The air vents are connected to the air holes, and the air holes extend from the position connected to the air holes to the end of the main shaft away from one end of the main shaft synchronous pulley.

5. The rotary double-station tread winding workstation according to claim 4, characterized in that: A rotating Glyer ring is provided on the main shaft at the position of the air hole. The rotating Glyer ring includes an inner ring and an outer ring. The inner ring is sleeved on the main shaft and fixed to the main shaft by a step and a round nut. O-rings are arranged at both ends and the middle of the inner wall of the inner ring to separate the air path. The outer ring is mounted on the outer wall of the inner ring through a bearing. The outer ring is fixed on the rotating box, and O-shaped sealing rings are arranged at both ends and the middle position of the inner wall of the outer ring to separate the air path; The two air holes are respectively connected with an air source connector, and the air source connector extends out of the outer ring so that air can be ventilated to the air hole and the vent hole through the air source connector.

6. The rotary double-station tread winding workstation according to claim 1, characterized in that: The winding drum comprises a winding drum main shaft and a winding drum core shaft arranged in the winding drum main shaft, and both ends of the winding drum main shaft and the winding drum core shaft are connected by bearings respectively; The main shaft in the main shaft assembly is connected to the main shaft of the winding drum via a positioning pin, and the rotation of the main shaft in the main shaft assembly drives the main shaft of the winding drum to rotate; The core shaft in the main shaft assembly is connected to the core shaft of the winding drum via a spline, and the rotation of the core shaft in the main shaft assembly drives the core shaft of the winding drum to rotate.

7. The rotary double-station tread winding workstation according to claim 1, characterized in that: The rotary double-station tread winding workstation further includes an exhaust licker-in structure, which is arranged on one side of the rotary workstation and below one of the winding drums.

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