Turn-up drum device and forming machine

Abstract

The utility model provides a turn-up drum device and a forming machine, the turn-up drum device comprises a box body, a turn-up drum, a forward and reverse package assembly, a first connecting shaft, a second connecting shaft and a thin-wall bearing, the turn-up drum is movably arranged relative to the box body; the forward and reverse package assembly is located between the box body and the reverse package drum. The first connecting shaft is rotatably arranged on the box body in a penetrating manner, and the first connecting shaft is in driving connection with the turn-up drum and can drive the turn-up drum to rotate; the second connecting shaft is connected with the box body, the second connecting shaft and the first connecting shaft are sleeved inside and outside, and the forward and reverse wrapping assembly can axially and movably sleeve the outer side of the second connecting shaft; the thin-wall bearing is located between the first connecting shaft and the second connecting shaft, and the first connecting shaft and the second connecting shaft are rotatably connected through the thin-wall bearing. According to the utility model, the problem of poor stability of positive and negative wrapping work caused by copper sleeve connection in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the field of forming machines, in particular to a reverse drum device and a forming machine. Background Art

[0002] The two-step aircraft tire forming process requires the carcass composite to be rolled, reversed, and laminated at the turn-up drum station. This requires a turn-up drum drive box to rotate and expand the drum, and a turn-up mechanism to move on the main shaft of the turn-up drum box and drive the internal capsule assembly to extend and retract. This turn-up drum drive box structure is used in semi-steel and all-steel two-step processes. However, the current turn-up drum drive box uses a copper sleeve to connect the outer shaft to the center shaft. In this operating condition, the entire main shaft structure is long and has high deflection. Friction caused by the copper sleeve connection during center shaft rotation can affect the outer shaft, leading to instability during the turn-up drum operation. Utility Model Content

[0003] The main purpose of the utility model is to provide a turn-up drum device and a forming machine, so as to solve the problem in the prior art that the copper sleeve connection leads to poor stability in the forward and reverse wrapping operation.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a turn-up drum device is provided, including a housing, a turn-up drum, a forward and reverse assembly, a first connecting shaft, a second connecting shaft and a thin-walled bearing, the turn-up drum is movably arranged relative to the housing; the forward and reverse assembly is located between the housing and the turn-up drum; the first connecting shaft is rotatably passed through the housing, the first connecting shaft is drive-connected to the turn-up drum, and can drive the turn-up drum to rotate; the second connecting shaft is connected to the housing, the second connecting shaft is arranged inside and outside the first connecting shaft, and the forward and reverse assembly is axially movably arranged on the outside of the second connecting shaft; the thin-walled bearing is located between the first connecting shaft and the second connecting shaft, and the first connecting shaft and the second connecting shaft are rotatably connected through the thin-walled bearing.

[0005] Furthermore, at least a portion of the second connecting shaft is located between the housing and the turn-up drum, and the thin-walled bearing is located at the end of the second connecting shaft away from the housing.

[0006] Furthermore, the second connecting shaft is sleeved on the outside of the first connecting shaft, the end of the second connecting shaft away from the box body is a free end, and the thin-walled bearing is located at the free end.

[0007] Furthermore, the forward and reverse package assembly includes a base and a capsule assembly. The base is movably arranged relative to the box body and is axially movably sleeved on the outside of the second connecting shaft. The capsule assembly is axially movably connected to the base.

[0008] Furthermore, the forward and reverse packaging assembly also includes a first driving member and a second driving member. The first driving member is connected to the box body and is driven by the base to drive the base to move axially; the second driving member is connected to the box body and is driven by the capsule assembly to drive the capsule assembly to move axially.

[0009] Furthermore, the turn-up drum device also includes a third connecting shaft and a third driving member. The third connecting shaft is inserted into the first connecting shaft, and the third connecting shaft is movably connected to the turn-up drum. The third driving member is drivingly connected to the third connecting shaft, and the third driving member drives the third connecting shaft to move axially to drive the expansion and contraction of the turn-up drum.

[0010] Furthermore, the third connecting shaft has an extended section protruding from the box body, and the third driving member is located on a side of the box body away from the turn-up drum and is drivingly connected to the extended section.

[0011] Furthermore, the lengths of the third connecting shaft, the first connecting shaft, and the second connecting shaft decrease in sequence.

[0012] Furthermore, the turn-up drum device also includes a fourth driving member, which is connected to the box body and is drivingly connected to the first connecting shaft to drive the first connecting shaft to drive the turn-up drum to rotate.

[0013] According to another aspect of the present invention, a forming machine is provided, comprising the above-mentioned turn-up drum device.

[0014] By applying the technical solution of the present invention, a thin-walled bearing is arranged between the first connecting shaft and the second connecting shaft. On the one hand, the friction between the first connecting shaft and the second connecting shaft during rotation is reduced, so that the relative movement between the first connecting shaft and the second connecting shaft is smoother, thereby making the rotation of the turn-up drum smoother, and at the same time improving the stability of the positive and negative packaging components sleeved on the second connecting shaft, thereby improving work efficiency, avoiding the problem that the friction of the traditional copper sleeve connection is large and easily leads to poor stability of the positive and negative packaging components and affects the smooth rotation of the turn-up drum. On the other hand, it can reduce the influence of the deflection problem on the second connecting shaft during rotation of the first connecting shaft, thereby improving the reliability of the second connecting shaft. At the same time, the inner and outer arrangements of the first and second connecting shafts are conducive to saving space, improving the compactness and operational flexibility of the turn-up drum device, and reducing the footprint of the turn-up drum device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0016] Figure 1 The schematic diagram of the mechanism of the turn-up drum device of the present invention is shown.

[0017] The above drawings include the following reference numerals:

[0018] 10. Box body; 20. Turn-over drum; 30. Forward and reverse assembly; 31. First driving member; 32. Second driving member; 40. First connecting shaft; 50. Second connecting shaft; 60. Thin-walled bearing; 70. Third connecting shaft; 80. Third driving member; 90. Fourth driving member. DETAILED DESCRIPTION

[0019] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0020] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0021] In the present invention, unless otherwise specified, directional words such as "up, down, top, bottom" are usually used with reference to the directions shown in the drawings, or with reference to the components themselves in the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above directional words are not used to limit the present invention.

[0022] In order to solve the problem of poor stability of forward and reverse wrapping caused by copper sleeve connection in the prior art, the utility model provides a reverse wrapping drum device and a forming machine, wherein the forming machine includes the following reverse wrapping drum device.

[0023] like Figure 1 The described turn-up drum device includes a housing 10, a turn-up drum 20, a forward and reverse packing assembly 30, a first connecting shaft 40, a second connecting shaft 50 and a thin-walled bearing 60. The turn-up drum 20 is movably arranged relative to the housing 10; the forward and reverse packing assembly 30 is located between the housing 10 and the turn-up drum 20; the first connecting shaft 40 is rotatably passed through the housing 10, the first connecting shaft 40 is drivingly connected to the turn-up drum 20, and can drive the turn-up drum 20 to rotate; the second connecting shaft 50 is connected to the housing 10, the second connecting shaft 50 is arranged inside and outside the first connecting shaft 40, and the forward and reverse packing assembly 30 is axially movably arranged on the outside of the second connecting shaft 50; the thin-walled bearing 60 is located between the first connecting shaft 40 and the second connecting shaft 50, and the first connecting shaft 40 and the second connecting shaft 50 are rotatably connected through the thin-walled bearing 60.

[0024] This embodiment arranges a thin-walled bearing 60 between the first connecting shaft 40 and the second connecting shaft 50. On the one hand, it reduces the friction between the first connecting shaft 40 and the second connecting shaft 50 when rotating, so that the relative movement between the first connecting shaft 40 and the second connecting shaft 50 is smoother, thereby making the rotation of the turn-up drum 20 smoother, and at the same time improves the stability of the positive and negative packaging assembly 30 sleeved on the second connecting shaft 50, thereby improving work efficiency, avoiding the problem that the friction of the traditional copper sleeve connection is large and easily leads to poor stability of the positive and negative packaging assembly 30 and affects the smooth rotation of the turn-up drum 20. On the other hand, it can reduce the impact of the deflection problem on the second connecting shaft 50 when the first connecting shaft 40 rotates, thereby improving the reliability of the second connecting shaft 50. At the same time, the inner and outer arrangements of the first connecting shaft 40 and the second connecting shaft 50 are conducive to saving space, improving the compactness and operational flexibility of the turn-up drum device, and reducing the footprint of the turn-up drum device.

[0025] It should be noted that the axial direction of this embodiment refers to the extension direction of the first connecting shaft 40. The second connecting shaft 50 is coaxially arranged with the first connecting shaft 40, so it is also the extension direction of the second connecting shaft 50, that is, Figure 1 Left and right direction in .

[0026] In this embodiment, at least a portion of the second connecting shaft 50 is located between the housing 10 and the turn-up drum 20, thereby ensuring that the axial movement of the forward and reverse assembly 30 does not affect the rotation of the turn-up drum 20, thereby ensuring the continuity and stability of the forward and reverse process. A thin-walled bearing 60 is located at the end of the second connecting shaft 50 away from the housing 10, thereby effectively isolating the forward and reverse assembly 30 from vibration during axial movement and preventing interference with the rotation of the turn-up drum 20.

[0027] In this embodiment, the second connecting shaft 50 is sleeved on the outside of the first connecting shaft 40, so that the outside of the second connecting shaft 50 can be directly connected to the forward and reverse packaging assembly 30, making the use of the forward and reverse packaging assembly 30 more convenient without affecting the rotation of the first connecting shaft 40. The end of the second connecting shaft 50 away from the housing 10 is a free end, and the thin-walled bearing 60 is located at the free end, thereby ensuring that the axial movement of the forward and reverse packaging assembly 30 and the rotation of the reverse packaging drum 20 are completely independent, thereby ensuring that the rotation of the reverse packaging drum 20 and the axial movement of the forward and reverse packaging assembly 30 do not interfere with each other, thereby facilitating improved work efficiency. The free end refers to the end of the second connecting shaft 50 away from the housing 10 that is not fixed by other components. This arrangement can reduce the deflection of the second connecting shaft 50.

[0028] In this embodiment, the front-turning assembly 30 includes a base and a capsule assembly. The base is movably disposed relative to the housing 10 and is axially movable about the outside of the second connecting shaft 50. The capsule assembly is axially movably connected to the base. Thus, axial movement of the base allows the entire front-turning assembly 30 to be moved to a working position or retracted after completion. Axial movement of the capsule assembly allows the capsule assembly to cooperate with the turn-up drum 20 to complete the front-turning of the carcass. Furthermore, the axial movement of both the base and the capsule assembly occurs along the outside of the second connecting shaft 50, independently of the movement of the first connecting shaft 40. This makes the movement of the front-turning assembly 30 more precise and stable, thereby improving the quality of the front-turning.

[0029] In this embodiment, the forward and reverse package assembly 30 further includes a first driving member 31 and a second driving member 32. The first driving member 31 is connected to the housing 10 and is also connected to the base to drive the base to move axially, thereby achieving axial movement of the forward and reverse package assembly 30 as a whole; the second driving member 32 is connected to the housing 10 and is also connected to the capsule assembly to drive the capsule assembly to move axially, thereby achieving axial movement of the capsule assembly relative to the base. Specifically, Figure 1 As shown, the first driving member 31 of this embodiment is disposed at the bottom of the housing 10 and can be an electric cylinder that drives the base of the forward and reverse packaging assembly 30 to move axially along the second connecting shaft 50. The second driving member 32 is disposed at the top of the housing 10 and can be a servo motor and sprocket drive assembly as a whole as the second driving member 32. The servo motor drives the sprocket drive assembly to drive the capsule assembly inside the forward and reverse packaging assembly 30 to move axially along the second connecting shaft 50. In this way, the independently disposed first driving member 31 and second driving member 32 facilitate precise control of the base and capsule assembly, thereby improving the forward and reverse packaging quality and production efficiency. Of course, the first driving member 31 and second driving member 32 can also adopt other structural forms, such as cylinders, as long as they can achieve the purpose of driving the base and capsule assembly to move axially.

[0030] In this embodiment, the turn-up drum device further includes a third connecting shaft 70 and a third driving member 80. The third connecting shaft 70 is disposed within the first connecting shaft 40 and is movably connected to the turn-up drum 20. The third driving member 80 is drivingly connected to the third connecting shaft 70, and the third driving member 80 drives the third connecting shaft 70 to move axially to drive the turn-up drum 20 to expand and contract, thereby flexibly adjusting the diameter of the turn-up drum 20, thereby improving the flexibility of the turn-up drum device. Specifically, the third connecting shaft 70 of this embodiment is disposed within the housing 10, and its two ends extend from both sides of the chassis and are respectively connected to the third driving member 80 and the turn-up drum 20. In order to ensure that the movement of the third driving member 80 and the movement of the forward and reverse assembly 30 do not interfere with each other, the third driving member 80 is disposed on a side of the chassis away from the forward and reverse assembly 30. In this way, the sleeved arrangement of the first connecting shaft 40, the second connecting shaft 50, and the third connecting shaft 70 greatly reduces the space occupied by the turn-up drum device and ensures that the expansion, contraction, and rotation of the turn-up drum 20 and the axial movement of the forward and reverse assembly 30 do not interfere with each other. Optionally, the third driving member 80 can be an electric cylinder.

[0031] In this embodiment, the third connecting shaft 70 has an extending section protruding from the housing 10, and the third driving member 80 is located on the side of the housing 10 away from the turn-up drum 20, and is driven and connected to the extending section. In this way, on the one hand, the third driving member 80 avoids the position of the housing 10 and the forward and reverse packaging assembly 30, thereby making the installation and maintenance of the third driving member 80 more convenient, thereby reducing the downtime of the turn-up drum device, thereby improving the continuity of production. On the other hand, the second connecting shaft 50 and the first connecting shaft 40 of this embodiment have one end close to the third driving member 80 that does not extend out of the housing 10, so that the third connecting shaft 70 located inside the second connecting shaft 50 and the first connecting shaft 40 has an easily observable extending section, so as to facilitate the observation of the movement state of the third connecting shaft 70, which is beneficial to the maintenance and troubleshooting of the third connecting shaft 70.

[0032] In this embodiment, the lengths of the third connecting shaft 70, the first connecting shaft 40, and the second connecting shaft 50 decrease successively, that is, the lengths between the three shafts sequentially arranged from the inside to the outside decrease successively, so that the first connecting shaft 40 and the third connecting shaft 70 located inside have space to connect with their respective driving parts within the length range, thereby achieving precise matching of multiple shafts in a limited space, reducing the volume of the reverse drum device, and improving space utilization, so that the three connecting shafts are arranged one on another and do not interfere with each other when moving relative to each other.

[0033] In this embodiment, the turn-up drum device further includes a fourth drive member 90, which is connected to the housing 10 and is drivably connected to the first connecting shaft 40 to drive the first connecting shaft 40 to rotate the turn-up drum 20, thereby controlling the rotational speed and rotational angle of the turn-up drum 20. Specifically, the fourth drive member 90 of this embodiment is disposed on a side of the housing 10 away from the turn-up drum 20, facilitating connection with the first connecting shaft 40 while avoiding the second connecting shaft 50 and the forward and reverse assembly 30 disposed on the side of the housing 10 closer to the turn-up drum 20. Alternatively, a servo motor and a synchronous pulley connected together can be used as the fourth drive member 90, with the servo motor driving the synchronous pulley to rotate, thereby driving the first connecting shaft 40 to rotate.

[0034] As described above, through the arrangement of the first connecting shaft 40, the second connecting shaft 50, and the third connecting shaft 70, the rotation and expansion and contraction of the turn-up drum 20 are realized, and the axial extension and return of the forward and reverse assembly 30 are realized at the same time. The second connecting shaft 50 is fixed on the chassis, and the third connecting shaft 70 controls the expansion and contraction of the turn-up drum 20 while the first connecting shaft 40 can rotate independently, which greatly improves the stability and reliability of the turn-up drum device, thereby meeting the requirements of the two-step forming process of aviation tires for the turn-up drum device.

[0035] The operation of the turn-up drum device of this embodiment is as follows: the third driving member 80 drives the third connecting shaft 70 to move axially, causing the turn-up drum 20 to expand and contract under the thrust. The fourth driving member 90 drives the first connecting shaft 40 to rotate. The first connecting shaft 40 is connected to the turn-up drum 20. When the first connecting shaft 40 rotates, the turn-up drum 20 rotates, thereby achieving rotation of the turn-up drum 20. The first driving member 31 drives the base of the forward and reverse assembly 30 to move axially. The second driving member 32 drives the capsule assembly within the forward and reverse assembly 30 to move axially. The first and second connecting shafts 40, 50, are connected by a thin-walled bearing 60 to reduce friction caused by relative motion and mitigate the effects of deflection.

[0036] It should be noted that, in the above embodiments, a plurality refers to at least two.

[0037] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0038] 1. Solve the problem of poor working stability of the forward and reverse packaging caused by the copper sleeve connection in the existing technology;

[0039] 2. The friction between the first connecting shaft and the second connecting shaft during rotation is reduced, so that the relative movement between the first connecting shaft and the second connecting shaft is smoother, thereby making the rotation of the turn-up drum smoother, and at the same time improving the stability of the forward and reverse packing assembly sleeved on the second connecting shaft, thereby improving work efficiency, and avoiding the problem that the large friction of the traditional copper sleeve connection easily leads to poor stability of the forward and reverse packing assembly and affects the smooth rotation of the turn-up drum;

[0040] 3. Reduce the impact of the deflection problem on the second connecting shaft during the rotation of the first connecting shaft, and improve the reliability of the second connecting shaft;

[0041] 4. The inner and outer arrangements of the first connecting shaft and the second connecting shaft are conducive to saving space, improving the compactness and operational flexibility of the turn-up drum device, and reducing the floor space occupied by the turn-up drum device.

[0042] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0043] 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 form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0044] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A drum-turning device, characterized in that: include: Box (10): a turn-up drum (20), wherein the turn-up drum (20) is movably arranged relative to the box body (10); A forward and reverse packaging assembly (30), the forward and reverse packaging assembly (30) being located between the box (10) and the reverse packaging drum (20); a first connecting shaft (40), the first connecting shaft (40) being rotatably disposed on the box body (10), the first connecting shaft (40) being drivingly connected to the turn-up drum (20) and capable of driving the turn-up drum (20) to rotate; A second connecting shaft (50), the second connecting shaft (50) is connected to the box body (10), the second connecting shaft (50) is arranged inside and outside the first connecting shaft (40), and the positive and negative package assembly (30) is axially movably arranged outside the second connecting shaft (50); A thin-walled bearing (60) is located between the first connecting shaft (40) and the second connecting shaft (50), and the first connecting shaft (40) and the second connecting shaft (50) are rotatably connected via the thin-walled bearing (60).

2. The turn-up drum device according to claim 1, characterized in that: At least a portion of the second connecting shaft (50) is located between the housing (10) and the turn-up drum (20), and the thin-walled bearing (60) is located at the end of the second connecting shaft (50) away from the housing (10).

3. The turn-up drum device according to claim 2, characterized in that: The second connecting shaft (50) is sleeved on the outside of the first connecting shaft (40), and the end of the second connecting shaft (50) away from the box body (10) is a free end, and the thin-walled bearing (60) is located at the free end.

4. The turn-up drum device according to any one of claims 1 to 3, characterized in that: The front and back package assembly (30) comprises: A base, the base being movably arranged relative to the box body (10), and the base being axially movably sleeved on the outside of the second connecting shaft (50); A capsule assembly is connected to the base in an axially movably manner.

5. The turn-up drum device according to claim 4, characterized in that: The front and back package assembly (30) further includes: a first driving member (31), the first driving member (31) being connected to the box (10) and drivingly connected to the base to drive the base to move axially; A second driving member (32) is connected to the housing (10) and is drivingly connected to the capsule assembly to drive the capsule assembly to move axially.

6. The turn-up drum device according to any one of claims 1 to 3, characterized in that: The turn-up drum device also includes: a third connecting shaft (70); the third connecting shaft (70) is inserted into the first connecting shaft (40), and the third connecting shaft (70) is movably connected to the turn-up drum (20); A third driving member (80) is drivingly connected to the third connecting shaft (70), and the third driving member (80) drives the third connecting shaft (70) to move axially to drive the turn-up drum (20) to expand and contract.

7. The turn-up drum device according to claim 6, characterized in that: The third connecting shaft (70) has an extended section protruding from the box body (10), and the third driving member (80) is located on a side of the box body (10) away from the turn-up drum (20) and is drivingly connected to the extended section.

8. The turn-up drum device according to claim 6, characterized in that: The lengths of the third connecting shaft (70), the first connecting shaft (40), and the second connecting shaft (50) decrease in sequence.

9. The turn-up drum device according to any one of claims 1 to 3, characterized in that: The turn-up drum device further includes a fourth driving member (90), which is connected to the housing (10) and is drivingly connected to the first connecting shaft (40) to drive the first connecting shaft (40) to drive the turn-up drum (20) to rotate.

10. A molding machine, characterized in that: The invention comprises the turn-up drum device according to any one of claims 1 to 9.

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