Rotary double-station tread winding workstation

Abstract

The invention provides a rotary type double-station tread winding work station, and belongs to the technical field of tire forming equipment. Comprising a supporting bottom plate, a graduator is fixed to the supporting bottom plate, a rotating box is arranged on the graduator, two main shaft assemblies are arranged on the upper portion of the rotating box, and the two main shaft assemblies are located on the two opposite sides of the rotating box respectively to form double stations; the two winding drums are connected to the two main shaft assemblies respectively. According to the tire blank winding device, continuous tire blank winding can be achieved, one station works, winding preparation is made on the other station, the tire blank replacing time of a single station is saved on the whole, and the working efficiency is at least improved by 40% under the same time.

Description

Technical Field

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

[0002] There are two main forms of tire tread molding: one is tread lamination: the extruder extrude the strip tread with the cross-sectional size that meets the tire factory's process requirements, cut it to a fixed length, and then laminate the tread of a certain length onto the tire embryo, rotate it for a circle, and roll the joint to form it. The other is tread winding: the extruder extrude the narrow rubber strip and then spirally wind it onto the tire embryo in multiple layers. Generally, one winding host is equipped with one molding machine. For tires below 25", tread lamination is mainly used due to mass production, while for tires above 25", on the one hand, the extrusion calendering equipment cannot produce a tread shape that meets the width requirements; on the other hand, due to its heavy weight, manual lamination is difficult to carry, so tread winding is generally used.

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

[0004] In recent years, due to the demand for improved tire quality, not only radial tires have been gradually adopted tread winding molding, but also racing tires and aircraft tires. The existing tread winding equipment is a winding machine equipped with a tire molding machine. When working, the winding machine winds the tire carcass molding drum. When attaching other tire parts, the winding machine is in a waiting state, the pause time is long, and the winding work effect is low. Summary of the invention

[0005] The purpose of the present invention is to solve the problems existing in the above-mentioned prior art and to provide a rotary double-station tread winding workstation with a double-station design. When 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, thereby 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 comprises a supporting base plate, a dividing device is fixed on the supporting base plate, a rotating box is arranged on the dividing device, two spindle assemblies are arranged on the upper part of the rotating box, and the two spindle assemblies are respectively located on opposite sides of the rotating 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, a front wall plate and a rear wall plate are arranged on the bottom plate, the two 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 arranged between the upper parts of the front wall plate and the rear wall plate, and the two 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 through the rotation of the indexer.

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

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

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

[0016] One end of the main shaft and the mandrel is connected to the winding drum, the other end of the mandrel extends out of the other end of the main shaft, and the part of the mandrel extending out of the main shaft is provided with a mandrel 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 belt 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 spindle at the right side of the spindle synchronous belt pulley through a keyway, and the airbag is fixed on the airbag mounting seat through a flange screw;

[0021] A friction ring is installed on the main shaft through a keyway, and the airbag is sleeved on the outer side of the friction ring. When the inside of the airbag expands, the inner cavity of the airbag contacts the friction ring, and when the inside of the airbag shrinks, the airbag is separated 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, and 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 arranged 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 circumferentially arranged on the main shaft at the right side of the main shaft synchronous pulley, and two air vents are axially arranged on the main shaft near the outer wall. The air holes are connected to the air holes, and the air holes extend from the positions 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 Gly ring is provided at the position of the air hole on the main shaft, and the rotating Gly ring includes an inner ring and an outer ring. The inner ring is sleeved on the main shaft and fixed on the main shaft through a step and a round nut. O-shaped sealing rings are arranged at both ends and the middle position of the inner wall of the inner ring to separate the air path, and the outer ring is installed 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 seal Gly rings are arranged at both ends and the middle of the inner wall of the outer ring to separate the gas path;

[0030] The two air holes are respectively connected with an air source connector, which extends out of the outer ring so that air can be ventilated to the air holes and the vent holes 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 the winding drum main shaft and the winding drum core shaft are connected at both ends by bearings respectively;

[0033] The spindle in the spindle assembly is connected to the winding drum spindle via a positioning pin, and the rotation of the spindle in the spindle assembly drives the winding drum spindle 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 comprises an exhaust licker-in roller structure, which is arranged at 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, another station is ready for winding. The time for replacing the tire blank at a single station is saved as a whole. 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 roller structure, which performs puncturing immediately after winding is finished, so as to facilitate the exhaustion of air inside the tire blank during the tire vulcanization process. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

[0044] Figure 5 It is a schematic diagram of the structure 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 schematic diagram of the structure of the exhaust licker-in roller assembly.

[0047] In the figure,

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

[0052] 27. Winding drum main shaft, 28. Winding drum mandrel, 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 roller assembly, 40. Second servo motor,

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

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

[0056] The characteristics of racing tire tread winding process: The winding workstation completely separates the process of applying the tread from other processes in the molding process, that is, the operations of applying the wire ring, the cord tube, the front and back packing, the compaction, and the sidewall rubber are completed on the molding machine. After the above processes are completed, the tire blank is placed under the molding machine and the tread is wound on the winding workstation. Since the two operations are separated, the efficiency of the molding machine and the winding workstation can be maximized as long as they are properly matched.

[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 to have a double-station rotation of 180° to perform tread winding on the tire blank, thereby 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 comprises a supporting base plate 4, on which a dividing device 5 is fixed, on which a rotating box 6 is arranged, on which two spindle assemblies 7 are arranged on the upper part of the rotating box 6, and the two spindle assemblies 7 are respectively located on opposite sides of the rotating 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 roller structure 3 is arranged at 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 tire blanks. 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 blanks 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 blanks. This cycle is repeated. Compared with the existing winding machines, the present invention saves the time for loading and unloading tire blanks, so that they will not be in a waiting state for a long time, greatly improving production efficiency.

[0063] When two workstations are rotated and interchanged, the position accuracy is required to be high when the rotary workstation rotates 180° to ensure that it will not cause rotational dislocation and affect production efficiency. The indexer in the present invention uses the Sankyo Alpha AD series mechanical indexer with cam technology. It controls the start and stop through timing cams, sensors and frequency converters. It does not need to use clutches and brakes, thereby reducing costs and requiring very little maintenance. It has the most essential characteristics: the output shaft completes one workstation (one transfer and one pause) for each rotation of the gear reduction motor on the indexer (360°). When the reduction motor rotates more than 360°, it can still remain in the workstation position unchanged. Its 1DWELL indexing accuracy is ±20sec, and the repeatability accuracy is 20sec. 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 bottom plate 8, on which a front wall plate 9 and a rear wall plate 10 are arranged opposite to each other, the two ends of the front wall plate 9 and the rear wall plate 10 are connected respectively by a left wall plate 11 and a right wall plate 12, and two cylinders 13 are arranged between the upper parts of the front wall plate 9 and the rear wall plate 10, and spherical roller bearing seats are fixed at both ends of the cylinders 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 on the cylinder 13 by 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 installed 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 to the winding drum 2, and 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 provided with a mandrel synchronous pulley 18 and an electromagnetic clutch 19 from right to left, wherein the mandrel synchronous pulley 18 is fixed on the mandrel 15 through a bearing, and the mandrel synchronous pulley 18 is connected to the mandrel rotation servo motor through the mandrel pulley, and 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 keyway, and the other end is installed on the mandrel synchronous pulley 18 through a flange. When the mandrel rotation servo motor is required to drive the mandrel 15 to rotate, the left half of the electromagnetic clutch 19 is controlled by a 24V DC power supply to attract the right half of the clamp, thereby transmitting the power of the mandrel rotation servo motor to the mandrel 15. After power failure, it is automatically separated by the spring of the electromagnetic clutch 19, and the servo motor is not affected when the mandrel 15 rotates.

[0068] An airbag mounting seat 20 is fixed on the right side of the mandrel synchronous belt pulley 18 through a keyway on the mandrel 15, and an airbag 21 is fixed on the airbag mounting seat 20 through a flange screw. A friction ring 22 is installed on the main shaft 14 through a keyway. The airbag 21 is sleeved on the outer side of the friction ring 22. When the inside of the airbag 21 expands, the inner cavity of the airbag 21 contacts the friction ring 22. When the inside of the airbag 21 shrinks, the airbag 21 is disengaged from the friction ring 22, and the mandrel 15 extends out of the main shaft 14. An internal center hole 23 is axially arranged on a portion of the core shaft 15, and the center hole 23 is connected to the airbag 21. A rotary joint 24 is installed on one end of the core shaft 15 extending out of the main shaft 14. The rotary joint 24 is connected to the center hole 23, and the air source can be passed to the airbag 21 through the rotary joint 24 and the center hole 23. The inside of the airbag 21 can be shrunk or expanded by turning the air on and off to the airbag 21. The inner cavity of the airbag 21 contacts the friction ring 22 to ensure the synchronous rotation of the core shaft 15 and the main shaft 14.

[0069] A spindle synchronous pulley 25 is provided on the spindle 14 near the friction ring 22 . The spindle synchronous pulley 25 is connected to the spindle rotation servo motor through a spindle belt pulley. The spindle rotation servo motor is fixed on the rotating box 6 .

[0070] Two air holes are circumferentially arranged on the main shaft 14 on the right side of the main shaft synchronous pulley 25, and two air vents are axially arranged on the main shaft and close to the outer wall. The air holes are connected to each other, 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 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, and the outer ring is installed on the outer wall of the inner ring through a bearing, 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-ring and the inner ring is a rotating sealing ring.

[0073] The two air holes are respectively connected with an air source connector, which extends out of the outer ring so that air can be ventilated to the air holes and the vent holes 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 in 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 positioning pin, the main shaft 14 in the main shaft assembly 7 rotates to drive the winding drum main shaft 27 to rotate, the core shaft 15 in the main shaft assembly 7 is connected to the winding drum core shaft 28 by a spline, and the core shaft 15 in the main shaft assembly 7 rotates to drive the winding drum core shaft 28 to rotate. The winding drum core shaft 28 is a ball screw to meet the problem of winding drum life.

[0075] A left chuck 29 and a right chuck 30 are slidably arranged 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 that are away from each other. A straight slot is opened on the left and right sides of the winding drum main shaft 27. 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. The winding drum core shaft 28 will drive the two sliders to slide horizontally during the rotation process, so that the left and right chucks can be opened or brought together.

[0076] The left chuck 29 and the right chuck 30 have the same structure and are symmetrically arranged. 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 fan-shaped 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 entire outside of the left chuck and the fan-shaped block is covered with a capsule. Under the action of the cylinder, the fan-shaped block can expand along the falling surface. When the air path is disconnected, the capsule covered outside the fan-shaped block causes the fan-shaped block to shrink.

[0077] Two air holes are provided on the winding drum main shaft 27 along the axial direction, which are respectively connected with 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 with the air outlet hole provided in the middle position of the winding drum main shaft 27, so as to inflate the interior of the preformed tire blank.

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

[0079] (a) Two spindle assemblies are arranged on opposite sides of the rotating box, the spindle in the spindle assembly is connected to the winding drum spindle by a locating pin, the rotation of the spindle in the spindle assembly drives the winding drum spindle to rotate, the mandrel in the spindle assembly is connected to the winding drum mandrel by a spline, the rotation of the mandrel in the spindle assembly drives the winding drum mandrel to rotate, when the spindle of station I is in the winding working position, the spindle of station II is in the loading and unloading tire blank working position.

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

[0081] (iii) After the tire blank is manually placed on the left and right chucks of the winding drum, the mandrel is rotated by the mandrel rotation servo motor driving the synchronous belt to rotate, which is spline-connected to the mandrel 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 clamping position of the left and right chucks and the tire blank steel ring.

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

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

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

[0085] (VII) In order to smoothly insert 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 in 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 need to have the same air path as the main shaft and be equipped with a proportional valve to accommodate tire blanks of different sizes.

[0086] As a preferred embodiment of the present invention, in order to exhaust the gas inside the tire embryo during the vulcanization process and between the layers during the winding molding process, it is necessary to puncture holes at the sidewall of the tread after the winding molding is completed. Therefore, an exhaust licker-in roller assembly is designed under the winding drum of the winding workstation. In order to adapt to the change in the thickness of the tire cross section, it is divided into left and right pneumatically driven licker-in rollers; in order to adapt to the change in width of different specifications, the left and right licker-in rollers drive the electric cylinder through a servo motor to realize computer input matching method width management. Since the winding workstation is a double-station type, the licker-in roller needs to adapt to the change in the outer diameter of the tire embryo from 13 inches to 21 inches, so the entire licker-in roller assembly is driven by a servo motor and a ball screw to lift and lower as a whole: each time the molding drum switches positions, the licker-in roller assembly needs to drop to the lowest point to make room for rotation, and then automatically rise to the position required by the tire embryo according to the formula.

[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 for the overall lifting and lowering of the licker-in assembly, and the entire licker-in assembly is lifted to a suitable specification position during operation, and the licker-in assembly is lowered to a waiting position when the turntable rotates after the tread winding is completed, wherein the licker-in lifting assembly includes a lifting frame 31, one side wall of the lifting frame 31 is provided with two parallel and vertically arranged guide rails 32, a ball screw 33 is arranged on the lifting frame 31 and located in the middle of the two guide rails 32, two sliders are fixed on the back of the connecting plate 34, the two sliders are respectively arranged in the two guide rails 32, and the connecting plate 34 is also connected to the ball screw 33, and a synchronous pulley 35 is arranged on the top of the ball screw 33, and the synchronous pulley 35 is connected to the first servo motor 36 fixed on the top of the lifting frame 31 through a pulley, and the ball screw 33 is driven to rotate by the first servo motor 36, thereby driving the connecting plate 34 to move up and down on the guide rail 32.

[0088] The licker-in roller assembly includes a support 37, one end of which is fixed on 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 roller assemblies 39 are slidably arranged on the linear module 38. A second servo motor 40 is arranged 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 roller assembly 39 to move horizontally on the linear module 38.

[0089] like Figure 7 As shown, the exhaust licker-in roller assembly 39 includes a connecting base plate 41, which is slidably arranged on the linear module 38, a cylinder seat 42 is fixed on the connecting base plate 41, and the cylinder seat 42 is rotatably connected to the bottom of the cylinder with a guide rod 45, and 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 arranged on the upper part of the cylinder with a guide rod 45, and a rotatable support is arranged on the connecting base plate 41 away from the cylinder seat 42. The support member is connected to the clamp seat 46, and the support member includes a fixed block fixed on the connecting bottom 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 achieve 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 45 with a guide rod is moved 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 rotationally connected to the bottom of the cylinder with guide rod 45. Specifically, a single ear shaft support 43 is provided at the bottom of the cylinder with guide rod 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 clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0092] In the description of the present invention, unless otherwise specified, the terms "upper", "lower", "left", "right", "inside", "outside", etc. indicate directions or positional relationships 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 operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0093] The above technical solution is only one implementation mode 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 comprises a supporting base plate, a dividing device is fixed on the supporting base plate, a rotating box is arranged on the dividing device, two spindle assemblies are arranged on the upper part of the rotating box, and the two spindle assemblies are respectively located on opposite sides of the rotating box to form a double station; The two winding drums are respectively connected to the two main shaft assemblies.

2. The rotary double-station tread winding workstation according to claim 1, characterized in that: The rotating box includes a bottom plate, a front wall plate and a rear wall plate are arranged on the bottom plate, the two 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 arranged between the upper parts of the front wall plate and the rear wall plate, and the two ends of the cylinders are respectively fixed with spherical roller bearing seats; 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 through the rotation of the indexer.

3. The rotary double-station tread winding workstation according to claim 2, characterized in that: The spindle assembly comprises a spindle and a core shaft arranged in the spindle, the spindle and the core shaft are connected via a deep groove ball bearing, and the spindle passes through the cylinder on the rotating box and is fixed on the cylinder via a spherical roller bearing.

4. The rotary double-station tread winding workstation according to claim 3, characterized in that: One end of the main shaft and the mandrel is connected to the winding drum, the other end of the mandrel extends out of the other end of the main shaft, and the part of the mandrel extending out of the main shaft is provided with a mandrel synchronous pulley and an electromagnetic clutch in sequence from right to left; 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 belt pulley, and the mandrel rotation servo motor is fixed on the rotating box; 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.

5. The rotary double-station tread winding workstation according to claim 4, characterized in that: An airbag mounting seat is fixed on the spindle at the right side of the spindle synchronous belt pulley through a keyway, and the airbag is fixed on the airbag mounting seat through a flange screw; A friction ring is installed on the main shaft through a keyway, and the airbag is sleeved on the outer side of the friction ring. When the inside of the airbag expands, the inner cavity of the airbag contacts the friction ring, and when the inside of the airbag shrinks, the airbag is separated 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, and the rotary joint is connected to the center hole.

6. The rotary double-station tread winding workstation according to claim 5, characterized in that: A main shaft synchronous pulley is arranged 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.

7. The rotary double-station tread winding workstation according to claim 6, characterized in that: Two air holes are circumferentially arranged on the main shaft at the right side of the main shaft synchronous pulley, and two air vents are axially arranged on the main shaft near the outer wall. The air vents are connected to the air holes, and the air holes extend from the positions connected to the air holes to the end of the main shaft away from one end of the main shaft synchronous pulley.

8. The rotary double-station tread winding workstation according to claim 7, characterized in that: A rotating Gly ring is provided at the position of the air hole on the main shaft, and the rotating Gly ring includes an inner ring and an outer ring. The inner ring is sleeved on the main shaft and fixed on the main shaft through a step and a round nut. O-shaped sealing rings are arranged at both ends and the middle position of the inner wall of the inner ring to separate the air path, and the outer ring is installed on the outer wall of the inner ring through a bearing; The outer ring is fixed on the rotating box, and O-shaped rotating seal Gly rings are arranged at both ends and the middle of the inner wall of the outer ring to separate the gas path; The two air holes are respectively connected with an air source connector, which extends out of the outer ring so that air can be ventilated to the air holes and the vent holes through the air source connector.

9. The rotary double-station tread winding workstation according to claim 3, 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 the winding drum main shaft and the winding drum core shaft are connected at both ends by bearings respectively; The spindle in the spindle assembly is connected to the winding drum spindle via a positioning pin, and the rotation of the spindle in the spindle assembly drives the winding drum spindle 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.

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

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