Turn-up forming device and tire forming machine with same

Abstract

The utility model provides a turn-up forming device and a tire forming machine with the turn-up forming device, the turn-up forming device comprises a main shaft and an auxiliary drum, the main shaft is rotatably arranged, and one end of the main shaft is arranged towards a forming drum; the auxiliary drum is arranged on the main shaft in a sleeving manner and is movably arranged relative to the main shaft in the axis direction of the main shaft; the capsule structure is arranged on the main shaft in a sleeving mode, and a turn-up capsule of the capsule structure is located at the end, close to the forming drum, of the auxiliary drum; the end, away from the turn-up capsule of the capsule structure, of the capsule structure is inserted into the first mounting cavity of the auxiliary drum, and the end, away from the turn-up capsule of the capsule structure, of the capsule structure is movably connected with the inner wall of the auxiliary drum. Wherein the turn-up capsule is provided with a first station and a second station. The reverse wrapping forming device can effectively solve the technical problem that in the prior art, when cord fabric is reversely wrapped on a steel wire ring, the cord fabric needs to be grabbed by a manual hand completely.

Description

Technical Field

[0001] The utility model relates to the technical field of tire production equipment, in particular to a turn-up molding device and a tire molding machine with the same. Background Art

[0002] During the tire building process, the inner liner, tire cord, tire bead, sidewall and other components need to be laminated. A key step in the laminating process is to turn up the tire cord on the forming and laminating drum to form the tire carcass.

[0003] Currently, the process for turning the tire cord on the forming and laminating drum is as follows: First, a wrapping device bends the cord protruding from the ends of the drum 90°, achieving a positive wrap. Then, auxiliary drums at each end of the drum press the steel rings onto the cord at both ends of the drum. Finally, the carcass cord is manually grasped and turned 180° (that is, the cord is wrapped from the ends of the drum back onto the steel rings), forming a complete carcass tube. However, manual turning of the cord presents several challenges: First, it requires the assistance of multiple operators, which is time-consuming and labor-intensive. More importantly, uneven manual turning can easily lead to bubbles forming between the carcass cord and the steel rings, seriously affecting tire quality and reducing production efficiency. Utility Model Content

[0004] The purpose of the present invention is to overcome the above technical deficiencies and provide a tire forming device and a tire forming machine having the same, so as to solve the technical problem in the prior art that when the cord is turned around on the wire ring, it needs to rely entirely on manual grasping to complete the task.

[0005] To achieve the above technical objectives, according to one aspect of the present invention: a turn-up forming device is provided, which includes: a main shaft and an auxiliary drum, the main shaft is rotatably arranged, and one end of the main shaft is arranged toward the forming drum; the auxiliary drum is sleeved on the main shaft, and the auxiliary drum is movably arranged relative to the main shaft along the axial direction of the main shaft; a capsule structure, the capsule structure is sleeved on the main shaft, and the turn-up capsule of the capsule structure is located at one end of the auxiliary drum close to the forming drum; one end of the capsule structure away from the turn-up capsule of the capsule structure is inserted into the first installation cavity of the auxiliary drum, and one end of the capsule structure away from the turn-up capsule of the capsule structure is movably connected to the inner wall of the auxiliary drum; wherein, the turn-up capsule has a first station and a second station, when the turn-up capsule needs to be moved to the first station, the auxiliary drum drives the capsule structure to move toward the forming drum by moving along the axial direction of the main shaft, so that the turn-up capsule is in the first station; when the turn-up capsule moves from the first station to the second station, the capsule structure moves relative to the auxiliary drum in a direction away from the forming drum, so that the turn-up capsule is in the second station.

[0006] Furthermore, the capsule structure also includes: a capsule fixing seat, which is an annular structure, and a second mounting cavity is provided in the capsule fixing seat; an inverted capsule sleeve is arranged on the capsule fixing seat, and at least part of the inverted capsule is located in the second mounting cavity; a capsule pressure cover, which is installed in the second mounting cavity and presses at least part of the inverted capsule inserted into the second mounting cavity so that the inverted capsule is relatively fixedly connected to the capsule fixing seat; a capsule connecting sleeve, one end of the capsule connecting sleeve is connected to the capsule pressure cover, and the other end of the capsule connecting sleeve is inserted into the first mounting cavity of the auxiliary drum, and the other end of the capsule connecting sleeve is movably connected to the inner wall of the auxiliary drum; wherein, the capsule fixing seat, the capsule pressure cover and the capsule connecting sleeve are all sleeved on the main shaft.

[0007] Furthermore, the reverse packaging forming device also includes: a first telescopic structure, the first telescopic structure is arranged on one end of the reverse packaging capsule of the capsule structure away from the capsule structure; and the telescopic rod of the first telescopic structure is arranged toward the forming drum; the first telescopic structure has an extended state and an initial state; wherein, when the reverse packaging capsule moves from the first station to the second station, the first telescopic structure switches from the initial state to the extended state, so that the free end of the telescopic rod of the first telescopic structure abuts against the inner wall of the auxiliary drum, and under the push of the first telescopic structure, the reverse packaging capsule at the first station is driven to move a preset distance in the direction away from the forming drum, so that the reverse packaging capsule is in the second station.

[0008] Furthermore, the reverse packaging forming device also includes: a pushing structure, which is arranged on the main shaft; the pushing structure is connected to the auxiliary drum, and the pushing structure is located at the end of the auxiliary drum away from the forming drum; the pushing structure drives the auxiliary drum to move along the axial direction of the main shaft.

[0009] Furthermore, the reverse-wrapping molding device also includes: an elastic member, which is sleeved on the main shaft and is located in the first mounting cavity of the auxiliary drum; one end of the elastic member is connected to the end of the reverse-wrapped capsule of the capsule structure away from the capsule structure, and the other end of the elastic member is connected to the inner wall of the auxiliary drum through a pushing structure; wherein the elastic member has a natural state and a compressed state, and when the auxiliary drum drives the capsule structure to move toward the molding drum, the elastic member is in a natural state; when the capsule structure moves relative to the auxiliary drum in a direction away from the molding drum, the elastic member is in a natural state or a compressed state.

[0010] Furthermore, the pushing structure includes: a limiting member, which is sleeved on the main shaft and is located in the first mounting cavity of the auxiliary drum; a pushing member, which is sleeved on the main shaft, and the end of the pushing member close to the auxiliary drum is detachably connected to the limiting member, and the limiting member protrudes from the end surface of the pushing member close to the auxiliary drum; a connecting sleeve, which is sleeved on the pushing member, and the connecting sleeve is detachably connected to the auxiliary drum, and the limiting member abuts against the connecting sleeve.

[0011] Furthermore, the turn-up forming device further includes: a driving structure, which is drivingly connected to the pushing structure, and the driving structure drives the pushing structure to move along the axial direction of the main shaft.

[0012] Furthermore, the reverse packaging forming device also includes: a chassis, which is movably arranged along a preset trajectory, and the driving structure and the main shaft are both installed on the chassis, and the driving structure and the main shaft are spaced apart; a second telescopic structure, the second telescopic structure is arranged on the chassis; the telescopic direction of the telescopic part of the second telescopic structure is consistent with the axial direction of the main shaft, and the telescopic part of the second telescopic structure is connected to the pushing structure, so that when the pushing structure drives the auxiliary drum to move in a direction away from the forming drum, the pushing structure is positioned by the second telescopic structure.

[0013] Furthermore, the reverse packaging forming device also includes: a buckle ring plate, which is installed on the end face of the auxiliary drum close to the forming drum, and a avoidance hole is provided in the buckle ring plate. The end of the reverse packaging capsule of the capsule structure away from the capsule structure passes through the avoidance hole and is inserted into the first installation cavity of the auxiliary drum; the buckle ring plate is used to place the steel ring, so that when the auxiliary drum contacts the forming drum, the steel ring located on the buckle ring plate is pressed onto the curtain on the end face of the forming drum.

[0014] According to another aspect of the present invention, a tire forming machine is provided, which includes: a forming drum, which is movably arranged; a front wrapping device, which is movably arranged and is used to front wrap the cord protruding from the two ends of the forming drum; a reverse wrapping forming device, which is the above-mentioned reverse wrapping forming device, and is used to reverse wrap the cord at the two ends of the forming drum; wherein, there are two reverse wrapping forming devices, and the two reverse wrapping forming devices are respectively located at the two ends of the forming drum; the main shaft of one of the two reverse wrapping forming devices is connected to the forming drum to drive the forming drum to rotate.

[0015] Beneficial effects:

[0016] By applying the technical solution of the present invention, the present invention provides an anti-packaging forming device, which is provided with a main shaft, an auxiliary drum and a capsule structure. One end of the main shaft is arranged toward the forming drum; the auxiliary drum is sleeved on the main shaft, and the auxiliary drum is movably arranged relative to the main shaft along the axial direction of the main shaft; at the same time, the capsule structure is also provided on the main shaft, and the anti-packaging capsule of the capsule structure is located at one end of the auxiliary drum close to the forming drum, and the anti-packaging capsule is located between the forming drum and the auxiliary drum; the anti-packaging capsule has a first station and a second station, and when the carcass tube forming process is required, the auxiliary drum drives the anti-packaging capsule toward the forming drum The turn-up bladder moves in the first direction to insert it into the building drum, placing it in the first station. Once the cord is wound onto the building drum and the portion protruding from the drum is properly wrapped, the steel ring is pressed against the cord at the end of the drum near the auxiliary drum. Once the steel ring is attached, the turn-up bladder moves from the first station to the second station. As the turn-up bladder moves from the first station to the second station, the bladder structure moves away from the auxiliary drum, positioning at least a portion of the bladder outside the drum near the auxiliary drum, ultimately placing the bladder in the second station. When in the second station, the bladder inflates to fold the cord 180°, completing the turn-up process and thus completing the carcass tube forming process. This demonstrates that the coordinated operation of the main shaft, auxiliary drum, and bladder structure allows for precise control of the movement and position of the turn-up bladder, ensuring more accurate winding and turning of the cord on the building drum. It also realizes the automation of the cord wrapping, reduces manual intervention, reduces errors caused by manual operation and defects caused by human factors, and thus improves the product qualification rate. At the same time, after the wrapping capsule is inflated at the second station, it can evenly fold the cord 180°, ensuring the consistency and quality of the wrapping process and improving production efficiency. In addition, the auxiliary drum and capsule structure are both movable along the axis of the main shaft, so that they can be adjusted according to tires of different specifications, enhancing the adaptability and flexibility of the equipment. In addition, the wrapping molding device reduces the direct contact between the operator and the equipment and the demand for manual labor, improves the safety of the production process, and reduces labor intensity and labor costs. The wrapping molding device can effectively solve the technical problem in the prior art that wrapping the cord onto the wire ring requires complete reliance on manual grasping. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a first perspective of an embodiment of the turn-up forming device according to the present invention is shown;

[0018] Figure 2 A schematic structural diagram from a second perspective of an embodiment of the turn-up forming device according to the present invention is shown;

[0019] Figure 3A schematic diagram showing a capsule structure in an embodiment of the turn-up forming device according to the present invention from a first perspective is shown;

[0020] Figure 4 A second perspective schematic diagram of the capsule structure in an embodiment of the turn-up molding device according to the present utility model is shown.

[0021] The above drawings include the following reference numerals:

[0022] 1. Main shaft; 2. Auxiliary drum; 21. First mounting cavity; 3. Capsule structure; 31. Inverted capsule; 32. Capsule fixing seat; 33. Capsule pressure cover; 34. Capsule connecting sleeve; 341. Connecting sleeve body; 342. Support plate; 4. First telescopic structure; 41. First telescopic cylinder; 42. First telescopic rod; 5. Pushing structure; 51. Limiting member; 52. Pushing member; 521. Pushing plate; 522. Connecting member; 53. Connecting sleeve; 54. Anti-wear member; 6. Elastic member; 7. Chassis; 8. Second telescopic structure; 9. Buckle ring plate; 10. Driving structure; 200. Forming drum. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0024] See also Figures 1 to 4 According to an embodiment of the present invention, a reverse-wrapping molding device is provided, which includes: a main shaft 1, an auxiliary drum 2 and a capsule structure 3, wherein the main shaft 1 is rotatably arranged, and one end of the main shaft 1 is arranged toward the molding drum 200; the auxiliary drum 2 is sleeved on the main shaft 1, and the auxiliary drum 2 is movably arranged relative to the main shaft 1 along the axial direction of the main shaft 1; the capsule structure 3 is sleeved on the main shaft 1, and the reverse-wrapping capsule 31 of the capsule structure 3 is located at one end of the auxiliary drum 2 close to the molding drum 200; the end of the capsule structure 3 away from the reverse-wrapping capsule 31 of the capsule structure 3 is inserted into the first installation cavity 2 of the auxiliary drum 2 1, and one end of the capsule structure 3 away from the inverted capsule 31 of the capsule structure 3 is movably connected to the inner wall of the auxiliary drum 2; wherein, the inverted capsule 31 has a first station and a second station. When the inverted capsule 31 needs to be moved to the first station, the auxiliary drum 2 drives the capsule structure 3 to move toward the forming drum 200 by moving along the axial direction of the main shaft 1, so that the inverted capsule 31 is in the first station; when the inverted capsule 31 moves from the first station to the second station, the capsule structure 3 moves relative to the auxiliary drum 2 in a direction away from the forming drum 200, so that the inverted capsule 31 is in the second station.

[0025] It can be seen that the turn-up forming device provided by the present invention is provided with a main shaft 1, an auxiliary drum 2 and a capsule structure 3. One end of the main shaft 1 is arranged toward the forming drum 200; the auxiliary drum 2 is sleeved on the main shaft 1, and the auxiliary drum 2 is movably arranged relative to the main shaft 1 along the axial direction of the main shaft 1; at the same time, the capsule structure 3 is also provided on the main shaft 1, and the turn-up capsule 31 of the capsule structure 3 is located at one end of the auxiliary drum 2 close to the forming drum 200, and the turn-up capsule is located between the forming drum 200 and the auxiliary drum 2; the turn-up capsule 31 has a first station and a second station. When the carcass tube forming process is required, the auxiliary drum 2 drives the turn-up capsule 31 to move toward the forming drum 200. The turn-up bladder 31 is inserted into the forming drum 200 so that it is located at the first station. When the cord is wound onto the forming drum 200 and the cord protruding from one end of the forming drum 200 is wrapped, the steel ring is pressed against the cord at the end of the forming drum 200 near the auxiliary drum. After the steel ring is attached, the turn-up bladder 31 needs to be moved from the first station to the second station. When the turn-up bladder 31 moves from the first station to the second station, the bladder structure 3 moves relative to the auxiliary drum 2 in a direction away from the forming drum 200, so that at least a portion of the turn-up bladder 31 is located outside the end of the forming drum 200 near the auxiliary drum, and finally the turn-up bladder 31 is located at the second station. When the turn-up bladder 31 is in the second station, it is inflated to fold the cord 180°, completing the turn-up process and thus completing the carcass tube forming process. As can be seen, the coordinated operation of the main shaft 1, auxiliary drum 2, and bladder structure 3 allows for precise control of the movement and position of the turn-up bladder 31, ensuring more accurate winding and turn-up of the cord on the forming drum 200. This also automates the cord turn-up process, reducing manual intervention, errors caused by manual operation, and defects resulting from human factors, thereby improving product qualification rates. Furthermore, after being inflated at the second station, the turn-up bladder can evenly fold the cord 180°, ensuring consistency and quality during the turn-up process and improving production efficiency. Furthermore, both the auxiliary drum 2 and bladder structure 3 are movable along the axis of the main shaft 1, enabling adjustment to different tire specifications, enhancing the adaptability and flexibility of the equipment. Furthermore, the turn-up forming device reduces direct operator contact with the equipment and the need for manual labor, improving production safety, and reducing labor intensity and costs. This turn-up forming device effectively addresses the existing technical problem of relying entirely on manual grasping to turn the cord onto the wire ring.

[0026] The first station mentioned above is located inside the building drum 200. This first station refers to a predetermined preparation position for the turn-up bladder 31 during the carcass tube building process, which is designed based on the tire type, the length of the building drum, and the working conditions. When the turn-up bladder 31 is in the first station, the entire turn-up bladder 31 is located inside the building drum 200.

[0027] The second station mentioned above refers to the pre-turnup position of the turnup bladder 31 during the carcass tube building process, designed based on the tire type, building drum length, and operating conditions. When the turnup bladder 31 moves from the first station to the second station, it moves toward the auxiliary drum 2 a predetermined distance, positioning a portion of the turnup bladder 31 outside the end of the building drum 200 near the auxiliary drum 2. This position allows the turnup bladder 31 to position the steel ring attached to the tire cord.

[0028] To further enhance the positioning of the steel ring, the inverted capsule 31 can optionally be partially filled with gas after moving from the first to the second station. This inflated gas allows the inverted capsule 31 to expand and stabilize, thereby enhancing its grip and support force on the steel ring during positioning. This also allows it to better adapt to steel rings of varying sizes and shapes, ensuring precise positioning. This facilitates subsequent inverted packaging processes.

[0029] Specifically, if Figure 3 and Figure 4As shown, the capsule structure 3 further includes: a capsule fixing seat 32, a capsule pressure cover 33, and a capsule connecting sleeve 34. The capsule fixing seat 32 is an annular structure, and a second mounting cavity is provided in the capsule fixing seat 32. The reversed capsule 31 is mounted on the capsule fixing seat 32, and at least a portion of the reversed capsule 31 is located in the second mounting cavity. The capsule pressure cover 33 is installed in the second mounting cavity and presses at least a portion of the reversed capsule 31 inserted into the second mounting cavity so that the reversed capsule 31 is relatively fixedly connected to the capsule fixing seat 32. One end of the capsule connecting sleeve 34 is connected to the capsule pressure cover 33, and the other end of the capsule connecting sleeve 34 is inserted into the first mounting cavity 21 of the auxiliary drum 2, and the other end of the capsule connecting sleeve 34 is movably connected to the inner wall of the auxiliary drum 2. The capsule fixing seat 32, the capsule pressure cover 33, and the capsule connecting sleeve 34 are all mounted on the main shaft 1. With such a structural arrangement, the reversed capsule 31 can be supported by providing the capsule fixing seat 32. The inverted capsule 31 is mounted on the capsule holder 32, with at least a portion of the inverted capsule 31 located in the second mounting cavity within the capsule holder 32. The capsule gland 33 compresses the inverted capsule 31, ensuring a tight seal and a secure connection between the inverted capsule 31 and the capsule holder 32. Furthermore, a seal is formed between the capsule gland 33 and the capsule holder 32 to prevent gas leakage and ensure uniform expansion of the inverted capsule 31 during inflation. Furthermore, a capsule connecting sleeve 34 is provided to allow the capsule structure 3 to be movably connected to the inner wall of the auxiliary drum 2 via the capsule connecting sleeve 34, thereby ensuring the stability and reliability of the capsule structure 3 between different workstations. By movably connecting the capsule connecting sleeve 34 to the inner wall of the auxiliary drum 2, the capsule connecting sleeve 34 can reduce the shaking of the capsule structure 3 during movement, thereby improving the stability of the overall device. Furthermore, the design of the capsule connecting sleeve 34 allows the capsule structure 3 to be flexibly moved within the auxiliary drum 2 and can be adjusted to suit tires of different specifications, thereby enhancing the adaptability and flexibility of the device.

[0030] Furthermore, the capsule connecting sleeve 34 includes a connecting sleeve body 341 and a support plate 342, one end of the connecting sleeve body 341 is connected to the capsule pressure cover 33; the other end of the connecting sleeve body 341 is connected to the support plate 342, and the support plate 342 is protruding from the periphery of the end of the connecting sleeve body 341 away from the capsule pressure cover 33.

[0031] Optionally, the support plate 342 is a symmetrical structure.

[0032] In this embodiment, Figures 1 to 2As shown, the turn-up forming device further includes: a first telescopic structure 4, which is disposed on an end of the capsule structure 3 away from the turn-up capsule 31; and a telescopic rod of the first telescopic structure 4 is disposed toward the forming drum 200. The first telescopic structure 4 has an extended state and an initial state. When the turn-up capsule 31 moves from the first station to the second station, the first telescopic structure 4 switches from the initial state to the extended state, so that the free end of the telescopic rod of the first telescopic structure 4 abuts the inner wall of the auxiliary drum 2. Driven by the first telescopic structure 4, the turn-up capsule 31 in the first station moves a predetermined distance away from the forming drum 200, so that the turn-up capsule 31 is in the second station. With this structural arrangement, the telescopic rod of the first telescopic structure 4 abuts the inner wall of the auxiliary drum 2 in the extended state, ensuring that the distance and position of the turn-up capsule 31 from the first station to the second station are precisely controllable. By precisely controlling the extension distance of the telescopic rod of the first telescopic structure 4, errors in the movement of the turn-up capsule 31 are reduced. The telescopic rod of the first telescopic structure 4 provides stable thrust when pushing the turn-up capsule 31, ensuring smooth and reliable movement of the turn-up capsule 31. Furthermore, the precise pushing of the telescopic rod of the first telescopic structure 4 prevents the turn-up capsule 31 from becoming stuck during movement, improving the smoothness of movement. Furthermore, the design of the first telescopic structure 4 allows the distance that the turn-up capsule 31 in the first working position can be moved away from the building drum 200 to adjust according to different working conditions and tire specifications, enhancing the adaptability and flexibility of the equipment.

[0033] The preset distance mentioned above refers to a distance for moving a portion of the turn-up bladder 31 out of the building drum 200 , which is set according to different tire types and building drum types.

[0034] Furthermore, the first telescopic structure 4 includes a first telescopic cylinder 41 and a first telescopic rod 42. The first telescopic cylinder 41 is mounted on the support plate 342 of the capsule connecting sleeve 34 (i.e., mounted on the end of the capsule connecting sleeve 34 away from the inverted capsule 31). The first telescopic rod 42 is telescopically disposed within the first telescopic cylinder 41. The support plate 342 is provided with a clearance hole corresponding to the first telescopic rod 42, and the first telescopic rod 42 is movably disposed within the clearance hole. The free end of the first telescopic rod 42 is positioned toward the forming drum 200.

[0035] Optionally, when the first telescopic structure 4 is in the initial state, the free end of the first telescopic rod 42 passes through the corresponding avoidance hole and is located at a side of the support plate 342 away from the first telescopic cylinder 41 .

[0036] Optionally, there are multiple first telescopic structures 4 and multiple avoidance holes, and the multiple first telescopic structures 4 are arranged in a one-to-one correspondence with the multiple avoidance holes. The first telescopic structures 4 are evenly arranged in the circumferential direction of the support plate 342.

[0037] Optionally, the first telescopic structure 4 is a first cylinder.

[0038] Specifically, if Figure 1 and Figure 2 As shown, the reverse packaging forming device also includes: a pushing structure 5, which is arranged on the main shaft 1; the pushing structure 5 is connected to the auxiliary drum 2, and the pushing structure 5 is located at the end of the auxiliary drum 2 away from the forming drum 200; the pushing structure 5 drives the auxiliary drum 2 to move along the axial direction of the main shaft 1. With such a structural setting, the moving distance and position of the auxiliary drum 2 can be accurately controlled by setting the pushing structure 5, and the moving distance and position of the capsule structure 3 can be accurately controlled, thereby ensuring that the reverse packaging capsule 31 can be accurately located at the first work station. At the same time, the pushing structure 5 provides a stable thrust to ensure the stability and reliability of the auxiliary drum 2 during the movement. The precise push of the pushing structure 5 avoids the possible jamming of the auxiliary drum 2 during the movement, thereby improving the smoothness of the movement.

[0039] Optionally, at least part of the pushing structure 5 is located inside the auxiliary drum 2 .

[0040] Specifically, the reverse-wrapping forming device further includes: an elastic member 6, which is sleeved on the main shaft 1 and located in the first mounting cavity 21 of the auxiliary drum 2; one end of the elastic member 6 is connected to the end of the capsule structure 3 that is away from the reverse-wrapped capsule 31 of the capsule structure 3, and the other end of the elastic member 6 is connected to the pushing structure 5 and the inner wall of the auxiliary drum 2; wherein the elastic member 6 has a natural state and a compressed state. When the auxiliary drum 2 drives the capsule structure 3 toward the forming drum 200, the elastic member 6 is in the natural state; when the capsule structure 3 moves away from the forming drum 200 relative to the auxiliary drum 2, the elastic member 6 is in the natural state or the compressed state. With such a structural arrangement, by providing the elastic member 6, when the pushing structure 5 drives the auxiliary drum 2 to move along the axis of the main shaft 1 toward the forming drum 200, the elastic member 6 is in the natural state. At this time, the elastic member 6 serves as a connecting member between the auxiliary drum 2 and the capsule structure 3, so that the auxiliary drum 2 drives the capsule structure 3 toward the forming drum 200 through the elastic member 6, so that the reverse-wrapped capsule 31 is accurately positioned in the first working position. When the reverse capsule 31 needs to be moved from the first station to the second station, the elastic member 6 is in a natural state or a compressed state. After the carcass tube forming process is completed, if the elastic member 6 is in a compressed state at this time, the reverse capsule 31 is driven to reset by the self-recovery force of the elastic member 6. It can be seen that by switching between the natural state and the compressed state of the elastic member 6, the error of the reverse capsule 31 during the movement is reduced, and the forming accuracy is improved; and the possible jamming phenomenon of the capsule structure 3 during the movement is avoided, and the smoothness of the movement is improved. At the same time, the elastic member 6 provides a stable connection in the natural state, ensuring the stability and reliability of the auxiliary drum 2 and the capsule structure 3 during the movement. In addition, the elastic member 6 ensures the rapid switching of the capsule structure 3 between the first station and the second station, meeting various production needs.

[0041] Optionally, one end of the elastic member 6 away from the capsule structure 3 is connected to at least a portion of the pushing structure 5 located on the auxiliary drum 2 , so that the end of the elastic member 6 away from the capsule structure 3 is connected to the auxiliary drum through the pushing structure 5 .

[0042] Optionally, the elastic member 6 is a compression spring.

[0043] Optionally, one end of the elastic member 6 away from the pushing structure 5 is connected to the capsule connecting sleeve 34 .

[0044] Optionally, when a carcass tube forming process is required, first, the pushing structure 5 pushes the auxiliary drum 2 to move along the axis of the main shaft 1 toward the forming drum 200. At this time, the auxiliary drum 2 simultaneously drives the capsule structure 3 to move toward the forming drum 200, thereby moving the turn-up capsule 31 into the forming drum 200, so that the turn-up capsule 31 is in the first working position. In order to ensure that the turn-up capsule 31 can smoothly enter the forming drum 200, when the turn-up capsule 31 is moved to a preset position, the first telescopic rod 42 of the first telescopic structure 4 is extended so that the free end of the first telescopic rod 42 is connected to the side wall of the auxiliary drum 2. Then, the first telescopic structure 4 continues to apply force, thereby driving the capsule structure 3 to move in a direction away from the forming drum 200. At this time, the elastic member 6 is in a compressed state. Then, through the combined action of the retraction of the first telescopic rod 42 and the self-recovery force of the elastic member 6, the turn-up capsule 31 is effectively adjusted to the preset accurate position, so that the turn-up capsule 31 can smoothly enter the forming drum 200.

[0045] Secondly, if the distance between the auxiliary drum 2 and the forming drum 200 does not reach the clearance distance of the auxiliary drum 2 for the curtain, the pushing structure 5 drives the auxiliary drum 2 to move away from the forming drum 200 so that the distance between the auxiliary drum 2 and the forming drum 200 is greater than or equal to the clearance distance of the auxiliary drum 2 for the curtain. When the pushing structure 5 drives the auxiliary drum 2 to move away from the forming drum 200, if the side wall of the auxiliary drum 2 comes into contact with the free end of the first telescopic rod 42 of the first telescopic structure 4 in the initial state and / or the support plate 342 of the capsule connecting sleeve 34, the pushing structure 5 stops moving, and the elastic member 6 is in a stretched state.

[0046] Next, when the curtain is wound onto the forming drum 200 and the curtain protruding from one end of the forming drum 200 is wrapped, the steel ring is pressed against the curtain at the end of the forming drum 200 near the auxiliary drum; after the steel ring is attached, the reverse capsule 31 needs to be moved from the first station to the second station. When it is necessary to move the reverse capsule 31 from the first station to the second station, the first telescopic structure 4 is in an extended state, and the first telescopic rod 42 of the first telescopic structure 4 is extended so that the free end of the first telescopic rod 42 abuts against the side wall of the auxiliary drum 2. Then, the first telescopic structure 4 continues to apply force, thereby driving the capsule structure 3 to move in a direction away from the forming drum 200. At this time, the elastic member 6 is in a natural state or a compressed state. Thus, by extending the first telescopic rod 42, the reverse capsule 31 is placed in the second station.

[0047] Finally, the turn-up bladder 31 is inflated to fold the cord 180 degrees to complete the turn-up process, thereby completing the carcass tube forming process.

[0048] In this embodiment, if Figure 1 and Figure 2As shown, the pushing structure 5 includes: a limiting member 51, a pushing member 52 and a connecting sleeve 53. The limiting member 51 is sleeved on the main shaft 1 and is located in the first mounting cavity 21 of the auxiliary drum 2. The pushing member 52 is sleeved on the main shaft 1, and the end of the pushing member 52 close to the auxiliary drum 2 is detachably connected to the limiting member 51. The limiting member 51 protrudes from the end surface of the pushing member 52 close to the auxiliary drum 2. The connecting sleeve 53 is sleeved on the pushing member 52, and the connecting sleeve 53 is detachably connected to the auxiliary drum 2, and the limiting member 51 abuts against the connecting sleeve 53. This structural arrangement is adopted to limit the connecting sleeve 53 by the limiting member 51 and the end of the pushing member 52 away from the auxiliary drum 2, preventing the connecting sleeve 53 from moving along the axis of the main shaft 1 on the pushing member 52.

[0049] Furthermore, the connecting sleeve 53 is rotatably arranged relative to the pushing member 52 .

[0050] Furthermore, the pushing member 52 includes a push plate 521 and a connecting member 522. The push plate 521 is sleeved on the connecting member 522 and fixedly connected to the connecting member 522. The push plate 521 is located at the end of the connecting member 522 away from the auxiliary drum 2. The end of the connecting member 522 closer to the auxiliary drum 2 is detachably connected to the limiting member 51. The push plate 521 protrudes from the connecting member 522. The limiting member 51 and the push plate 521 limit the position of the connecting sleeve 53.

[0051] Furthermore, the pushing structure 5 further includes an anti-wear member 54, which is sleeved on the pushing member 52 and fixedly connected to the pushing member 52. The anti-wear member 54 is located between the connecting sleeve 53 and the pushing member 52. When the connecting sleeve 53 rotates around the main shaft 1, the anti-wear member 54 prevents friction between the connecting sleeve 53 and the pushing member 52.

[0052] Optionally, the anti-wear member 54 is sleeved on the connecting member 522. The anti-wear member 54 is a copper sleeve.

[0053] In this embodiment, if Figures 1 to 2 As shown, the turn-up forming device further includes: a driving structure 10 , which is drivingly connected to the pushing structure 5 , and the driving structure 10 drives the pushing structure 5 to move along the axial direction of the main shaft 1 .

[0054] Furthermore, the driving end of the driving structure 10 is connected to the push plate 521 .

[0055] Furthermore, there are multiple driving structures 10 , and the multiple driving structures 10 are evenly spaced around the circumference of the pushing structure 5 .

[0056] Optionally, the driving structure 10 is a second cylinder.

[0057] Specifically, if Figures 1 to 2As shown, the turn-up forming device further includes: a chassis 7 and a second telescopic structure 8. The chassis 7 is movably arranged along a preset trajectory. The drive structure 10 and the main shaft 1 are both mounted on the chassis 7, with the drive structure 10 spaced apart from the main shaft 1. The second telescopic structure 8 is disposed on the chassis 7. The telescopic portion of the second telescopic structure 8 has a telescopic direction that aligns with the axial direction of the main shaft 1, and the telescopic portion of the second telescopic structure 8 is connected to the push structure 5. When the push structure 5 drives the auxiliary drum 2 in a direction away from the forming drum 200, the second telescopic structure 8 can be used to position the push structure 5. With this structural arrangement, the chassis 7 is movably arranged along the preset trajectory, thereby enabling the position of the turn-up forming device to be adjusted according to actual conditions. At the same time, the second telescopic structure 8 can be used to position the push structure 5 when the push structure 5 drives the auxiliary drum 2 in a direction away from the forming drum 200. The second telescopic structure 8 also provides a stable thrust, ensuring the stability and reliability of the push structure 5 during movement.

[0058] Furthermore, the telescopic portion of the second telescopic structure 8 is connected to the push plate 521 .

[0059] Furthermore, there are multiple second telescopic structures 8 , and the multiple second telescopic structures 8 are evenly spaced around the circumference of the pushing structure 5 .

[0060] Optionally, the plurality of second telescopic structures 8 and the plurality of driving structures 10 are alternately arranged, and each second telescopic structure 8 is spaced apart from each driving structure 10 .

[0061] Specifically, if Figures 1 to 2 As shown, the reverse packaging forming device also includes: a buckle ring plate 9, which is installed on the end face of the auxiliary drum 2 close to the forming drum 200, and a avoidance hole is provided in the buckle ring plate 9. The end of the reverse packaging capsule 31 of the capsule structure 3 away from the capsule structure 3 passes through the avoidance hole and is inserted into the first installation cavity 21 of the auxiliary drum 2; the buckle ring plate 9 is used to place the steel ring, so that when the auxiliary drum 2 contacts the forming drum 200, the steel ring located on the buckle ring plate 9 is pressed onto the curtain on the end face of the forming drum 200.

[0062] Optionally, when it is necessary to press the steel ring placed on the bead plate 9 onto the cord on the end surface of the forming drum 200, the auxiliary drum 2 moves with the bead plate 9 toward the forming drum 200 to tightly fit the auxiliary drum 2 and then, when the forming drum 200 rotates, the auxiliary drum 2 is driven to rotate around the main shaft 1 to press the steel ring onto the cord on the end surface of the forming drum 200. After the pressing is completed, the auxiliary drum 2 moves with the bead plate 9 away from the forming drum 200 to separate the bead plate 9 from the steel ring and facilitate the subsequent process.

[0063] The present invention also provides a tire forming machine, which includes: a forming drum 200, a front wrapping device and a back wrapping forming device, wherein the forming drum 200 is movably arranged; the front wrapping device is movably arranged, and the front wrapping device is used to front wrap the cord fabric protruding from the two ends of the forming drum 200 on the forming drum 200; the back wrapping forming device is the back wrapping forming device of the above embodiment, and the back wrapping forming device is used to back wrap the cord fabric at the two ends of the forming drum 200; wherein, there are two back wrapping forming devices, and the two back wrapping forming devices are respectively located at the two ends of the forming drum 200; the main shaft 1 of one of the two back wrapping forming devices is connected to the forming drum 200 to drive the forming drum 200 to rotate.

[0064] Furthermore, when the curtain is wound onto the forming drum 200 , the forming drum 200 is driven to rotate by the main shaft 1 connected to the forming drum 200 , so that the curtain is wound onto the forming drum 200 .

[0065] Optionally, when the forming drum 200 is not rotating and is in an unopened state, the steel ring passes through the other end of the forming drum 200 away from the main shaft 1 connected to the forming drum 200 and is sleeved on the buckle plate 9 of the turn-up forming device connected to the forming drum 200. When the cord is wound onto the forming drum 200, a distance is maintained between the buckle plate 9 with the steel ring and the forming drum 200 to avoid the cord.

[0066] Optionally, for the turn-up forming device among the two turn-up forming devices that is not connected to the forming drum 200, when the turn-up capsule 31 of the capsule structure 3 on the turn-up forming device is located inside the forming drum 200, at least a portion of the capsule structure 3 on the turn-up forming device is located outside one end of the main shaft 1 of the turn-up forming device close to the forming drum 200.

[0067] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in a sequence other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0068] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and this embodiment will not be described in detail here.

[0069] The serial numbers of the above embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0070] In the above embodiments of the present application, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0071] The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A reverse packaging forming device, characterized in that: The reverse packaging forming device comprises: A main shaft (1) and an auxiliary drum (2), wherein the main shaft (1) is rotatably arranged, and one end of the main shaft (1) is arranged toward the forming drum (200); the auxiliary drum (2) is sleeved on the main shaft (1), and the auxiliary drum (2) is movably arranged relative to the main shaft (1) along the axial direction of the main shaft (1); A capsule structure (3), wherein the capsule structure (3) is sleeved on the main shaft (1), and the reversed capsule (31) of the capsule structure (3) is located at an end of the auxiliary drum (2) close to the forming drum (200); an end of the capsule structure (3) away from the reversed capsule (31) of the capsule structure (3) is inserted into the first mounting cavity (21) of the auxiliary drum (2), and an end of the capsule structure (3) away from the reversed capsule (31) of the capsule structure (3) is movably connected to the inner wall of the auxiliary drum (2); The reverse-wrapped capsule (31) has a first station and a second station. When the reverse-wrapped capsule (31) needs to be moved to the first station, the auxiliary drum (2) drives the capsule structure (3) to move toward the forming drum (200) by moving along the axial direction of the main shaft (1), so that the reverse-wrapped capsule (31) is located at the first station. When the reverse-wrapped capsule (31) moves from the first station to the second station, the capsule structure (3) moves relative to the auxiliary drum (2) in a direction away from the forming drum (200), so that the reverse-wrapped capsule (31) is located at the second station.

2. The reverse packaging forming device according to claim 1, characterized in that: The capsule structure (3) further comprises: A capsule fixing seat (32), the capsule fixing seat (32) is an annular structure, and a second mounting cavity is provided in the capsule fixing seat (32); the reversed capsule (31) is sleeved on the capsule fixing seat (32), and at least a portion of the reversed capsule (31) is located in the second mounting cavity; a capsule pressing cover (33), the capsule pressing cover (33) being installed in the second installation cavity and pressing at least a portion of the reversed capsule (31) inserted into the second installation cavity, so that the reversed capsule (31) is relatively fixedly connected to the capsule fixing seat (32); a capsule connecting sleeve (34), one end of the capsule connecting sleeve (34) being connected to the capsule gland (33), the other end of the capsule connecting sleeve (34) being inserted into the first mounting cavity (21) of the auxiliary drum (2), and the other end of the capsule connecting sleeve (34) being movably connected to the inner wall of the auxiliary drum (2); The capsule fixing seat (32), the capsule pressing cover (33) and the capsule connecting sleeve (34) are all sleeved on the main shaft (1).

3. The reverse packaging forming device according to claim 1, characterized in that: The reverse packaging forming device also includes: a first telescopic structure (4), the first telescopic structure (4) being arranged on an end of the capsule structure (3) away from the reversed capsule (31) of the capsule structure (3); and a telescopic rod of the first telescopic structure (4) being arranged toward the forming drum (200); the first telescopic structure (4) having an extended state and an initial state; When the reverse-wrapped capsule (31) moves from the first station to the second station, the first telescopic structure (4) switches from the initial state to the extended state, so that the free end of the telescopic rod of the first telescopic structure (4) abuts against the inner wall of the auxiliary drum (2), and under the push of the first telescopic structure (4), the reverse-wrapped capsule (31) at the first station is driven to move a preset distance in a direction away from the forming drum (200), so that the reverse-wrapped capsule (31) is at the second station.

4. The reverse packaging forming device according to claim 1, characterized in that: The reverse packaging forming device also includes: A pushing structure (5), wherein the pushing structure (5) is arranged on the main shaft (1); the pushing structure (5) is connected to the auxiliary drum (2), and the pushing structure (5) is located at an end of the auxiliary drum (2) away from the forming drum (200); the pushing structure (5) drives the auxiliary drum (2) to move along the axial direction of the main shaft (1).

5. The reverse wrapping forming device according to claim 4, characterized in that: The reverse packaging forming device also includes: an elastic member (6), wherein the elastic member (6) is sleeved on the main shaft (1), and the elastic member (6) is located in the first mounting cavity (21) of the auxiliary drum (2); one end of the elastic member (6) is connected to an end of the capsule structure (3) away from the reversed capsule (31) of the capsule structure (3), and the other end of the elastic member (6) is connected to the inner wall of the auxiliary drum (2) through the pushing structure (5); The elastic member (6) has a natural state and a compressed state. When the auxiliary drum (2) drives the capsule structure (3) to move toward the forming drum (200), the elastic member (6) is in the natural state; when the capsule structure (3) moves relative to the auxiliary drum (2) in a direction away from the forming drum (200), the elastic member (6) is in the natural state or the compressed state.

6. The reverse packaging forming device according to claim 4, characterized in that: The propulsion structure (5) comprises: A limiting member (51), the limiting member (51) is sleeved on the main shaft (1), and the limiting member (51) is located in the first mounting cavity (21) of the auxiliary drum (2); A pushing member (52), the pushing member (52) is sleeved on the main shaft (1), one end of the pushing member (52) close to the auxiliary drum (2) is detachably connected to the limiting member (51), and the limiting member (51) protrudes from the end surface of the pushing member (52) close to the auxiliary drum (2); A connecting sleeve (53) is sleeved on the pushing member (52), the connecting sleeve (53) is detachably connected to the auxiliary drum (2), and the limiting member (51) abuts against the connecting sleeve (53).

7. The turn-up forming device according to any one of claims 4 to 6, characterized in that: The reverse-wrapping forming device further comprises: a driving structure (10), wherein the driving structure (10) is drivingly connected to the pushing structure (5), and the driving structure (10) drives the pushing structure (5) to move along the axial direction of the main shaft (1).

8. The reverse packaging forming device according to claim 7, characterized in that: The reverse packaging forming device also includes: A chassis (7), the chassis (7) being movably arranged along a preset track, the drive structure (10) and the main shaft (1) being both mounted on the chassis (7), and the drive structure (10) and the main shaft (1) being spaced apart; A second telescopic structure (8), wherein the second telescopic structure (8) is arranged on the chassis (7); the telescopic direction of the telescopic portion of the second telescopic structure (8) is consistent with the axial direction of the main shaft (1), and the telescopic portion of the second telescopic structure (8) is connected to the pushing structure (5), so that when the pushing structure (5) drives the auxiliary drum (2) to move in a direction away from the forming drum (200), the pushing structure (5) is positioned by the second telescopic structure (8).

9. The reverse packaging forming device according to claim 1, characterized in that: The reverse-wrapping forming device further comprises: a buckle plate (9), the buckle plate (9) being mounted on the end face of the auxiliary drum (2) close to the forming drum (200), a avoidance hole being provided in the buckle plate (9), and an end of the reverse-wrapped capsule (31) of the capsule structure (3) away from the capsule structure (3) passing through the avoidance hole and inserted into the first mounting cavity (21) of the auxiliary drum (2); the buckle plate (9) is used for placing a steel ring, so that when the auxiliary drum (2) contacts the forming drum (200), the steel ring on the buckle plate (9) is pressed onto the curtain on the end face of the forming drum (200).

10. A tire building machine, characterized in that: The tire building machine comprises: A forming drum (200), wherein the forming drum (200) is movably arranged; a wrapping device, the wrapping device being movably provided and used for wrapping the curtain fabric protruding from both ends of the forming drum (200) on the forming drum (200); A turn-up forming device, the turn-up forming device being the turn-up forming device according to any one of claims 1 to 8, and the turn-up forming device being used to turn up the cord fabrics at both ends of the forming drum (200); There are two turn-up forming devices, and the two turn-up forming devices are respectively located at two ends of the forming drum (200); the main shaft (1) of one of the two turn-up forming devices is connected to the forming drum (200) to drive the forming drum (200) to rotate.

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