Air spring forming drum and air spring forming process method

Abstract

The present invention provides an air spring forming drum and an air spring forming process method. Among them, the air spring forming drum includes: a main shaft; a push plate assembly, the push plate assembly includes a disc body and claw parts, the disc body is axially movably arranged on the main shaft, the claw parts are connected to the disc body and are axially movably arranged relative to the disc body; a sliding sleeve assembly, the sliding sleeve assembly is axially movably arranged on the main shaft and is connected to the disc body; a turning support assembly, the turning support assembly is radially movably arranged on the main shaft and is connected to the sliding sleeve assembly, and when the sliding sleeve assembly moves axially, it drives the turning support assembly to change the diameter; a rubber compound coating assembly, the rubber compound coating assembly is arranged on the main shaft and is used for adsorbing the rubber compound, the rubber compound coating assembly has an air passage for introducing positive pressure and negative pressure, and the air passage is communicated with the outer side surface of the rubber compound coating assembly. The present invention solves the problem of the small application range of the air spring drum in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of tire processing, and in particular, to an air spring forming drum and an air spring forming process method. Background Art

[0002] The V-shaped air spring drum is a core component on the air spring forming machine, and its working process includes processes such as rubber compound coating, steel ring locking, and bladder reverse wrapping forming. 1. When coating the rubber compound, the adsorption force is provided by a vacuum generator and the power is provided by the forming machine to rotate the forming drum for rubber compound coating. After coating, it is rolled by the pressure roller of the forming machine. 2. When locking the steel ring, after the steel ring is pre-positioned, the spring drum connecting sliding sleeve and other associated link structures are pushed by a push plate (power provided by the forming machine) to lock the steel ring. 3. The forming machine inflates the reverse wrapping bladder and performs reverse wrapping on the rubber compound. After forming through the above processes, a mechanical device for producing a green tire before vulcanization with an inner bladder structure is manufactured.

[0003] The drum plate structure of the existing V-shaped air spring drum is an integral structure, fixed at one end and propped up at the other end. When the bladder falls back, since the drum plate is in an umbrella-shaped structure after being propped up, the reverse wrapping bladder cannot fall back automatically and requires manual intervention, which affects work efficiency. In addition, due to the lack of reverse blowing function of the drum plate, it is difficult to remove the tire. Moreover, because the drum adopts a bladder reverse wrapping structure, it is difficult to replace the bladder in the bladder reverse wrapping structure, with high operation and maintenance costs, and the bladder reverse wrapping structure can only match the vulcanization process of an inner bladder vulcanizer and cannot match the vulcanization process of a non-inner bladder vulcanizer. Summary of the Invention

[0004] The main object of the present invention is to provide an air spring forming drum and an air spring forming process method to solve the problem of the small application range of the air spring drum in the prior art.

[0005] To achieve the above object, according to one aspect of the present invention, an air spring forming drum is provided, including: a main shaft; a push plate assembly, the push plate assembly includes a plate body and claw parts, the plate body is axially movably arranged on the main shaft, the claw parts are connected to the plate body and are axially movably arranged relative to the plate body; a sliding sleeve assembly, the sliding sleeve assembly is axially movably arranged on the main shaft and is connected to the plate body; a flipping support assembly, the flipping support assembly is radially movably arranged on the main shaft and is connected to the sliding sleeve assembly, and when the sliding sleeve assembly moves axially, it drives the flipping support assembly to change the diameter; a rubber compound coating assembly, the rubber compound coating assembly is arranged on the main shaft and is used for adsorbing the rubber compound, and the rubber compound coating assembly has an air passage for introducing positive pressure and negative pressure, and the air passage is communicated with the outer side surface of the rubber compound coating assembly.

[0006] Furthermore, the claw parts are located on the end surface of the plate body facing the flipping support assembly, and a plurality of claw parts are provided, and each claw part is arranged along the circumferential direction of the plate body.

[0007] Further, the sliding sleeve assembly is arranged between the push plate assembly and the flipping support assembly, and both ends of the sliding sleeve assembly are respectively abutted against the push plate assembly and the flipping support assembly.

[0008] Further, the flipping support assembly includes: a support disc connected to the main shaft; a plurality of drum plates rotatably connected to the support disc, and each drum plate can rotate synchronously to change the diameter of the flipping support assembly. When the diameter of the drum plate is the smallest, it abuts against and supports on the support disc; a connecting rod, one end of the connecting rod is hinged to the inner side of the drum plate, and the other end of the connecting rod is hinged to the sliding sleeve assembly. When the sliding sleeve assembly moves axially, it squeezes the connecting rod, and the connecting rod drives the drum plate to rotate to change the diameter of the flipping support assembly.

[0009] Further, one end of the drum plate away from the sliding sleeve assembly is hinged to the support disc, and one end of the drum plate close to the sliding sleeve assembly can move radially and is docked and cooperated with the claw part.

[0010] Further, the drum plate has a groove for accommodating the steel ring. The flipping support assembly further includes a leveling block movably arranged on the drum plate and capable of covering or avoiding the groove to perform material pasting or fixing the steel ring.

[0011] Further, the rubber material pasting assembly includes: an outer wall plate having a through hole communicated with the air circuit, and the outer wall plate is used for adsorbing and fitting the rubber material; a gas guiding support assembly arranged between the outer wall plate and the main shaft and provided with an air circuit, and the air circuit includes a positive pressure air circuit for blowing materials and a negative pressure air circuit for sucking materials.

[0012] Further, the outer wall plate includes a plurality of segments, and each segment is connected along the axial direction of the main shaft to form the surface for pasting the rubber material. The rubber material pasting assembly further includes a plurality of width adjusting rings arranged between each segment to adjust the size of the surface for pasting the rubber material.

[0013] Further, the main shaft includes a first shaft section and a second shaft section which are drivingly connected. The sliding sleeve assembly, the flipping support assembly, and the rubber material pasting assembly are all arranged on the first shaft section. The disc body is sleeved on the second shaft section, and the second shaft section is drivingly connected to the main chassis.

[0014] According to another aspect of the present invention, there is provided an air spring forming process method, using the above-mentioned air spring forming drum. The air spring forming process method includes: the air circuit of the rubber material pasting assembly negatively adsorbs the rubber material, and at the same time the main shaft rotates to complete the pasting of the rubber material; after the steel ring is pre-positioned, the push plate assembly moves axially and pushes the sliding sleeve assembly to move axially, and the diameter of the flipping support assembly increases to complete the locking of the steel ring; the claw part of the push plate assembly moves axially relative to the disc body to boost the rubber material for reverse wrapping to complete the reverse wrapping of the steel ring; the push plate assembly moves axially back to its original position, the claw part moves axially back to its original position relative to the disc body, the sliding sleeve assembly moves axially back to its original position, and the flipping support assembly returns to its original position; the air circuit of the rubber material pasting assembly positively blows the rubber material to complete the material removal; and the demolding.

[0015] Applying the technical solution of the present invention, through the setting of the above components, during processing, after the rubber compound coating component sucks materials under negative pressure, the disk body moves axially, causing the entire push disk component to move. The movement of the push disk component drives the sliding sleeve component to move axially, and the sliding sleeve component squeezes the flipping support component to cause the flipping support component to expand radially for operations such as locking the steel ring. During the reverse wrapping, the disk body of the push disk component remains stationary, and the claw part continues to move relative to the disk body. Under the action of the claw part boosting the rubber compound, the steel ring reverse wrapping is completed. After the reverse wrapping is completed, each component returns to its original position in sequence, and the rubber compound coating component blows materials under positive pressure to perform material removal. The above setting method does not require a capsule reverse wrapping structure, so it does not require manual intervention, has high efficiency, and does not require replacing the capsule reverse wrapping structure. The overall structure is convenient for maintenance, can be applied to the vulcanization process of an inner bladderless vulcanizer, has a wider application range. At the same time, the rubber compound coating component can both suck and blow materials, which is convenient for material removal and tire demolding, reducing the operation difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0017] Figure 1 shows the structural schematic diagram of the air spring forming drum of the present invention when the drum plate falls;

[0018] Figure 2 shows Figure 1 an enlarged view of the P position in

[0019] Figure 3 shows Figure 1 the structural schematic diagram of the air spring forming drum in

[0020] Figure 4 shows Figure 3 an enlarged view of the Q position in

[0021] Among them, the above accompanying drawings include the following reference numerals:

[0022] 10, main shaft; 11, first shaft section; 12, second shaft section; 20, push disk component; 21, disk body; 22, claw part; 30, sliding sleeve component; 40, flipping support component; 41, support disk; 42, drum plate; 421, groove; 43, connecting rod; 44, flat block; 50, rubber compound coating component; 51, outer wall plate; 52, air guide support component; 521, air path; 53, width adjustment ring; 60, main chassis. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0024] It should be pointed out that, unless otherwise specified, all technical and scientific terms used in the present application have the same meanings as those commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0025] In the present invention, unless otherwise stated, the orientation words such as "upper, lower, top, bottom" are usually in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravitational directions of the components themselves; similarly, for the convenience of understanding and description, "inner, outer" refer to the inner and outer of the contours of the respective components themselves, but the above orientation words are not used to limit the present invention.

[0026] In order to solve the problem of the small application range of the existing air spring drum, the present invention provides an air spring forming drum and an air spring forming process method.

[0027] As Figures 1 to 4 shown, an air spring forming drum includes a main shaft 10, a push plate assembly 20, a sliding sleeve assembly 30, a flipping support assembly 40 and a rubber compound coating assembly 50. The push plate assembly 20 includes a plate body 21 and claw parts 22. The plate body 21 is axially movably arranged on the main shaft 10. The claw parts 22 are connected to the plate body 21 and are axially movably arranged relative to the plate body 21. The sliding sleeve assembly 30 is axially movably arranged on the main shaft 10 and is connected to the plate body 21. The flipping support assembly 40 is radially movably arranged on the main shaft 10 and is connected to the sliding sleeve assembly 30. When the sliding sleeve assembly 30 axially moves, it drives the flipping support assembly 40 to change the diameter. The rubber compound coating assembly 50 is arranged on the main shaft 10 and is used for adsorbing the rubber compound. The rubber compound coating assembly 50 has an air passage 521 for introducing positive pressure and negative pressure, and the air passage 521 communicates with the outer side surface of the rubber compound coating assembly 50.

[0028] In this embodiment, through the arrangement of the above components, during processing, after the rubber compound coating assembly 50 sucks materials under negative pressure, the disk body 21 moves axially, causing the entire push disk assembly 20 to move. The movement of the push disk assembly 20 can drive the sleeve assembly 30 to move axially, and the sleeve assembly 30 squeezes the flipping support assembly 40 to cause the flipping support assembly 40 to expand radially for operations such as locking the steel ring. During reverse wrapping, the disk body 21 of the push disk assembly 20 remains stationary, and the claw part 22 continues to move relative to the disk body 21. Under the action of the claw part 22 boosting the rubber compound, the steel ring reverse wrapping is completed. After the reverse wrapping is completed, each component returns to its original position in sequence, and the rubber compound coating assembly 50 blows materials under positive pressure to perform material removal. Since the above arrangement does not require a capsule reverse wrapping structure, it does not require manual intervention, has high efficiency, and does not require replacement of the capsule reverse wrapping structure. The overall structure is convenient for maintenance, can be applied to the vulcanization process of an inner bladderless vulcanizer, has a wider application range. At the same time, the rubber compound coating assembly 50 can both suck and blow materials, which is convenient for material removal and tire demolding, reducing the operation difficulty.

[0029] The disk body 21 of this embodiment is in a disk shape, and its central axis coincides with the axis of the main shaft 10. The sleeve assembly 30, the flipping support assembly 40, and the rubber compound coating assembly 50 are located on one side of the disk body 21, and the claw part 22 is located on the end face of the disk body 21 facing the flipping support assembly 40. In this way, when the entire push disk assembly 20 moves, it can approach the flipping support assembly 40, and at the same time, when the claw part 22 moves independently, it can also approach the flipping support assembly 40 to better boost the reverse wrapping of the rubber compound. A plurality of claw parts 22 are provided in this embodiment, and each claw part 22 is arranged on the disk body 21 along the circumferential direction of the disk body 21, and the claw parts 22 act synchronously to ensure the reverse wrapping effect.

[0030] In this embodiment, the sleeve assembly 30 is arranged between the push disk assembly 20 and the flipping support assembly 40, and both ends of the sleeve assembly 30 are in contact with the push disk assembly 20 and the flipping support assembly 40 respectively. In this way, when the entire push disk assembly 20 moves, it can drive the flipping support assembly 40 to change its diameter by squeezing the sleeve assembly 30. Of course, the specific transmission form between the push disk assembly 20 and the flipping support assembly 40 can be set as needed.

[0031] Such as Figure 1 and Figure 3As shown, the flipping support assembly 40 of this embodiment includes a support disk 41, a plurality of drum plates 42, and a connecting rod 43. The support disk 41 is connected to the main shaft 10. The drum plates 42 serve as the outer side of the flipping support assembly 40 and are used to fix the steel ring, bond the rubber material, etc. One end of the drum plate 42 is rotatably connected to the support disk 41, and each drum plate 42 can rotate synchronously to change the diameter of the flipping support assembly 40. In addition to serving as the component connecting the flipping support assembly 40 and the main shaft 10, the support disk 41 also serves as the support for the drum plates 42, that is, when the diameter of the drum plates 42 is the smallest, they abut and support on the support disk 41. One end of the connecting rod 43 is hinged to the inner side of the drum plate 42, and the other end of the connecting rod 43 is hinged to the sliding sleeve assembly 30. In this way, when the sliding sleeve assembly 30 moves axially, it squeezes the connecting rod 43. The connecting rod 43 moves and rotates, and the movement of the connecting rod 43 pushes the drum plate 42 outwards, thereby driving the drum plate 42 to rotate around the hinge point between the drum plate 42 and the support disk 41, and further changing the diameter of the flipping support assembly 40.

[0032] In this embodiment, the end of the drum plate 42 away from the sliding sleeve assembly 30 is hinged to the support disk 41, serving as the rotation point of the drum plate 42. The end of the drum plate 42 close to the sliding sleeve assembly 30 is a free end. While the drum plate 42 rotates, this free end moves radially, thereby realizing the change in the diameter of the flipping support assembly 40. At the same time, this free end is also in butt joint and cooperation with the claw part 22, and when the claw part 22 moves alone and approaches the flipping support assembly 40, it cooperates with the free end to complete the action of boosting the rubber material to be wrapped back.

[0033] As Figure 4 shown, a groove 421 is provided on the drum plate 42. The groove 421 is used to accommodate the steel ring, position and fix the steel ring. The flipping support assembly 40 further includes a leveling block 44. The leveling block 44 is movably arranged with the drum plate 42. In this embodiment, the leveling block 44 is rotatably connected to the side of the drum plate 42, and the leveling block 44 can block or avoid the groove 421. When applying the material, the leveling block 44 is rotated upwards so that the leveling block 44 blocks the groove 421, providing support for the rubber material, thereby avoiding the situation of unevenness caused by the leakage of the rubber material at the groove 421 and ensuring the flatness of the rubber material coverage. When fixing the steel ring, the leveling block 44 is rotated downwards to avoid the groove 421, and the groove 421 is exposed so that the steel ring can be fixed to the groove 421 to realize the fixation of the steel ring. The cooperation between the groove 421 and the leveling block 44 can, on the one hand, play a role in fixing the steel ring, and on the other hand, avoid the influence of the opening of the groove 421 on the flatness when applying the bonded rubber material, and ensure the integrity of the rubber material to the greatest extent.

[0034] In this embodiment, the rubber material coating assembly 50 includes an outer wall panel 51 and an air guiding and supporting assembly 52. The outer wall panel 51 is the main component for adsorbing and attaching the rubber material, and the rubber material is attached to the outer surface of the outer wall panel 51. The outer wall panel 51 is provided with through holes communicating with the air path 521. The air guiding and supporting assembly 52 is arranged between the outer wall panel 51 and the main shaft 10 and is provided with an air path 521. On the one hand, the air guiding and supporting assembly 52 serves as a component connecting the outer wall panel 51 and the main shaft 10 and plays a supporting role for the outer wall panel 51. On the other hand, it provides a path for introducing gas for sucking and blowing materials, that is, the air path 521, to ensure the attachment and detachment of the rubber material. As Figure 2 shown, multiple air paths 521 are provided in this embodiment, including a positive pressure air path for blowing materials and a negative pressure air path for sucking materials. The negative pressure air path and the positive pressure air path are respectively used for attaching and separating the rubber material. Of course, only one air path 521 can also be provided, and this air path 521 can conduct positive pressure or negative pressure, so as to realize material attachment and material detachment.

[0035] As Figure 1 and Figure 3 shown, the outer wall panel 51 in this embodiment adopts a multi-segment design, specifically including multiple segments. Each segment is sequentially connected along the axial direction of the main shaft 10 to form the surface for coating the rubber material. The rubber material coating assembly 50 further includes multiple width adjustment rings 53. The widths of the width adjustment rings 53 are not exactly the same. The width adjustment rings 53 are arranged between the segments as required. During use, an appropriate width adjustment ring 53 can be selected according to needs, so as to adjust the size of the surface for coating the rubber material, so that the surface for coating the rubber material formed by the width adjustment ring 53 and the outer wall panel 51 meets the requirements of rubber material coating, and the applicability of the air spring forming drum is improved.

[0036] The main shaft 10 in this embodiment includes a first shaft segment 11 and a second shaft segment 12. The first shaft segment 11 and the second shaft segment 12 are drivingly connected. The sliding sleeve assembly 30, the flipping support assembly 40, and the rubber material coating assembly 50 are all arranged on the first shaft segment 11 and rotate under the drive of the first shaft segment 11. The disk body 21 is sleeved on the second shaft segment 12 and is located at one end of the second shaft segment 12 close to the first shaft segment 11. A driving component can be arranged on the second shaft segment 12 as required to drive the actions of components such as the push disk assembly 20. One end of the second shaft segment 12 far from the first shaft segment 11 is drivingly connected to the main chassis 60. The main chassis 60 is used to drive the main shaft 10 to rotate and provide positive and negative pressure gases for the rubber material coating assembly 50, etc.

[0037] This embodiment also provides an air spring forming process method, which uses the above-mentioned air spring forming drum. The air spring forming process method includes: under the action of the main chassis 60, the air path 521 of the rubber material coating assembly 50 negatively adsorbs the rubber material, and at the same time, the main shaft 10 rotates under the action of the main chassis 60, and the rubber material coating is completed. After the steel ring is pre-positioned, the push disk assembly 20 moves axially and pushes the sliding sleeve assembly 30 to move axially, that isFigure 1 Move to the left in the middle, the diameter of the flipping support assembly 40 increases after flipping, and the locking of the steel ring is completed; the claw 22 of the push plate assembly 20 axially moves relative to the plate body 21 to boost the compound reverse wrapping, and the reverse wrapping of the steel ring is completed; the push plate assembly 20 axially moves back to its original position, that is Figure 1 Move to the right in the middle, the claw 22 axially moves back to its original position relative to the plate body 21, the sliding sleeve assembly 30 axially moves back to its original position, and the flipping support assembly 40 returns to its original position; the positive pressure of the air circuit 521 of the compound covering assembly 50 blows the compound in the reverse direction, and manual assistance can be supplemented to complete the material discharging; the tire blank is completed under the action of the molding machine.

[0038] The above process method, in combination with the aforementioned air spring forming drum, enables the mechanical flipping support assembly 40 to lock the steel ring and the claw 22 of the push plate assembly 20 to boost the reverse wrapping of the compound, replacing the existing capsule reverse wrapping of the compound. It is separated from the capsule in principle, ensuring the product quality of the finished tire while reducing the operation and maintenance cost of purchasing the capsule. Moreover, the positive and negative air circuits blow in the positive and reverse directions to ensure the functions of automatic material pasting and easy material discharging, increasing the efficiency. The tire blanking is smooth, reducing the manufacturing cost of the drum tile.

[0039] It should be noted that the multiple in the above embodiments refers to at least two.

[0040] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0041] 1. Solve the problem of the small applicable range of the air spring drum in the prior art;

[0042] 2. Do not need to adopt a capsule reverse wrapping structure, so there is no need for manual intervention, with high efficiency, and there is no need to replace the capsule reverse wrapping structure, and the overall structure is convenient for maintenance;

[0043] 3. Can be applicable to the vulcanization process of a bladderless vulcanizer, with a wider applicable range;

[0044] 4. The compound covering assembly can both suck and blow materials, facilitating material discharging and tire blanking, and reducing the operation difficulty;

[0045] 5. The tire blanking is smooth, reducing the manufacturing cost of the drum tile.

[0046] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0047] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0048] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned drawings of the present application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0049] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An air spring forming drum, characterized in that, Comprising: A main shaft (10); A push plate assembly (20), the push plate assembly (20) includes a plate body (21) and claw parts (22), the plate body (21) is axially movably arranged on the main shaft (10), the claw parts (22) are connected to the plate body (21) and are axially movably arranged relative to the plate body (21); A sliding sleeve assembly (30), the sliding sleeve assembly (30) is axially movably arranged on the main shaft (10) and is connected to the plate body (21); A flipping support assembly (40), the flipping support assembly (40) is radially movably arranged on the main shaft (10) and is connected to the sliding sleeve assembly (30), when the sliding sleeve assembly (30) axially moves, it drives the flipping support assembly (40) to change the diameter; An adhesive material coating assembly (50), the adhesive material coating assembly (50) is arranged on the main shaft (10) for adsorbing the adhesive material, the adhesive material coating assembly (50) has an air passage (521) for introducing positive pressure and negative pressure, and the air passage (521) communicates with the outer side surface of the adhesive material coating assembly (50); The claw parts (22) are located on the end surface of the plate body (21) facing the flipping support assembly (40), and there are multiple claw parts (22), and each claw part (22) is arranged along the circumferential direction of the plate body (21); the plate body (21) drives the flipping support assembly (40) to act through the sliding sleeve assembly (30) to lock the steel ring, and the claw parts (22) move relative to the plate body (21) to boost the reverse wrapping; The flipping support assembly (40) includes: A support plate (41), the support plate (41) is connected to the main shaft (10); Multiple drum plates (42), the drum plates (42) are rotatably connected to the support plate (41), and each drum plate (42) can rotate synchronously to change the diameter of the flipping support assembly (40), and when the diameter of the drum plate (42) is the smallest, it abuts and supports on the support plate (41); A connecting rod (43), one end of the connecting rod (43) is hinged to the inner side of the drum plate (42), the other end of the connecting rod (43) is hinged to the sliding sleeve assembly (30), when the sliding sleeve assembly (30) axially moves, it squeezes the connecting rod (43), and the connecting rod (43) drives the drum plate (42) to rotate to change the diameter of the flipping support assembly (40); One end of the drum plate (42) away from the sliding sleeve assembly (30) is hinged to the support plate (41), and one end of the drum plate (42) close to the sliding sleeve assembly (30) can move radially and is in butt joint and cooperation with the claw parts (22); The drum plate (42) has a groove (421) for accommodating the steel ring.

2. The air spring forming drum according to claim 1, wherein The sliding sleeve assembly (30) is arranged between the push plate assembly (20) and the flipping support assembly (40), and both ends of the sliding sleeve assembly (30) are respectively in abutment with the push plate assembly (20) and the flipping support assembly (40).

3. The air spring forming drum according to claim 1, characterized in that, The flipping and supporting assembly (40) further includes a flattening block (44). The flattening block (44) is movably arranged with the drum plate (42) and can block or avoid the groove (421) to apply the material or fix the steel ring.

4. The air spring forming drum according to claim 1, wherein The rubber material coating assembly (50) includes: An outer wall plate (51) having a through hole communicating with the air passage (521). The outer wall plate (51) is used for adsorbing and fitting the rubber material; An air guiding and supporting assembly (52) arranged between the outer wall plate (51) and the main shaft (10), provided with the air passage (521), and the air passage (521) includes a positive pressure air passage for blowing the material and a negative pressure air passage for sucking the material.

5. The air spring forming drum according to claim 4, characterized in that, The outer wall plate (51) includes a plurality of segments. Each segment is connected along the axial direction of the main shaft (10) to form a surface for coating the rubber material. The rubber material coating assembly (50) further includes a plurality of width adjusting rings (53) arranged between the segments to adjust the size of the surface for coating the rubber material.

6. The air spring forming drum according to claim 1, characterized in that, The main shaft (10) includes a first shaft section (11) and a second shaft section (12). The first shaft section (11) and the second shaft section (12) are drivingly connected. The sliding sleeve assembly (30), the flipping and supporting assembly (40), and the rubber material coating assembly (50) are all arranged on the first shaft section (11). The disk body (21) is sleeved on the second shaft section (12), and the second shaft section (12) is drivingly connected to the main chassis (60).

7. A forming process method for an air spring, characterized in that, Using the air spring forming drum according to any one of claims 1 to 6, the air spring forming process method includes: The air passage (521) of the rubber material coating assembly (50) negatively adsorbs the rubber material, and at the same time the main shaft (10) rotates to complete the coating of the rubber material; After the steel ring is pre-positioned, the push plate assembly (20) axially moves and pushes the sliding sleeve assembly (30) axially. The diameter of the flipping and supporting assembly (40) increases to complete the locking of the steel ring; The claw part (22) of the push plate assembly (20) axially moves relative to the disk body (21) to boost the reverse wrapping of the rubber material to complete the reverse wrapping of the steel ring; The push plate assembly (20) axially moves back to its original position, the claw part (22) axially moves back to its original position relative to the disk body (21), the sliding sleeve assembly (30) axially moves back to its original position, and the flipping and supporting assembly (40) returns to its original position; The air passage (521) of the rubber material coating assembly (50) positively blows the rubber material to complete the material removal; Demolding.

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