Capsule side drum device and agricultural tire forming machine

Abstract

The utility model provides a capsule side drum device and a farm tire forming machine. The capsule side drum device comprises a main shaft, the inner sleeve is installed on the main shaft, and the inner sleeve is in sliding connection with the main shaft in the axis direction of the main shaft; the expansion and shrinkage assemblies are installed on the outer circumferential face of the inner sleeve at intervals in the circumferential direction of the inner sleeve, and at least one part of each expansion and shrinkage assembly is arranged in an expansion and shrinkage mode in the radial direction of the inner sleeve; the drum plates are connected with the expansion and shrinkage assembly and located on the outer circumferential face of the expansion and shrinkage assembly, and the expansion and shrinkage assembly drives the drum plates to move in the radial direction of the inner sleeve; the capsule is mounted on the peripheral surface of the drum plate; and the air tap is communicated with the capsule and is arranged on one side, close to the inner sleeve, of the capsule. The problem that time and labor are wasted when a capsule side drum is replaced in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the field of tire production and processing, and in particular, to a capsule side-drum device and an agricultural tire forming machine. Background Art

[0002] As an essential and important part of agricultural mechanization, agricultural tires have the characteristics of fuel saving, shock absorption, reducing soil compaction, increasing the traction of the main machine, and long service life compared with ordinary bias tires. The operations of carcass fitting, carcass reverse wrapping, and carcass forward wrapping are carried out on one drum, and the liner and cord fabric are fitted in the "large diameter" state, ensuring that the carcass tube has no expansion and stretching.

[0003] In the process of tire processing, the capsule side-drum has always been dedicated to a specific drum. Each time the tire size specification is switched, the capsule side-drum needs to be replaced, which is time-consuming and laborious. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a capsule side-drum device and an agricultural tire forming machine to solve the problem of time-consuming and laborious replacement of the capsule side-drum in the prior art.

[0005] To achieve the above object, according to one aspect of the utility model, a capsule side-drum device is provided, which includes a main shaft; an inner sleeve installed on the main shaft and slidably connected to the main shaft along the axis direction of the main shaft; a plurality of expansion and contraction components spacedly installed on the outer peripheral surface of the inner sleeve along the circumferential direction of the inner sleeve, at least a part of the expansion and contraction components being expandable and contractible along the radial direction of the inner sleeve; a plurality of drum plates connected to the expansion and contraction components and located on the outer peripheral surface of the expansion and contraction components, the expansion and contraction components driving the drum plates to move along the radial direction of the inner sleeve; a capsule installed on the outer peripheral surface of the drum plates; and an air nozzle communicated with the capsule and arranged on the side of the capsule close to the inner sleeve.

[0006] Further, the capsule has an installation part, the outer peripheral surface of the drum plate has an installation position, the installation part is embedded in the installation position, and the air nozzle is located at the installation part and penetrates through the installation part to communicate with the inside of the capsule.

[0007] Further, other positions of the capsule except the installation part are flexible parts that can be deformed.

[0008] Further, the capsule includes a liner layer, a cord fabric layer, and a tread layer arranged in sequence, and the liner layer, the cord fabric layer, and the tread layer are arranged in sequence from the inside to the outside of the capsule.

[0009] Further, the cord fabric layer is at least two layers, the cord fabric layers are stacked, and the cord lines of adjacent two cord fabric layers are arranged crosswise.

[0010] Further, the air nozzle is arranged at the midline position of the drum plate parallel to the axis; and / or the number of air nozzles is multiple, and the air nozzles are arranged at intervals along the axial direction of the inner sleeve.

[0011] Further, the expansion and contraction assembly includes: a slider, which is slidably connected to the inner sleeve along the axial direction of the inner sleeve, and one side of the slider away from the axis of the inner sleeve has a first inclined surface; a lifting block, which is arranged on the side of the slider away from the axis of the inner sleeve and can move radially, and one side of the lifting block close to the slider has a second inclined surface that abuts and cooperates with the first inclined surface, and the drum plate is installed on the side of the lifting block away from the slider; a driving member, which is drivingly connected to the slider and drives the slider to move along the axial direction of the inner sleeve, and the axial movement of the slider drives the lifting block to move radially through the first inclined surface and the second inclined surface.

[0012] Further, the expansion and contraction assembly further includes a turntable bearing, which is arranged between the slider and the driving member. When the main shaft rotates, the driving member is docked and separated from the slider through the turntable bearing.

[0013] Further, the capsule side drum device further includes a guiding assembly, which is arranged between the lifting block and the inner sleeve. At least a part of the guiding assembly is movably arranged along the radial direction of the inner sleeve and limits the radial movement of the lifting block along the inner sleeve.

[0014] According to another aspect of the present invention, a radial tire building machine is provided, which includes the above-mentioned capsule side drum device.

[0015] By applying the technical solution of the present invention, the following technical effects are achieved:

[0016] 1. When the side drum needs to perform the inside-out and outside-in wrapping operations, it is necessary to inflate the capsule. After inflation, the capsule moves towards the tire to complete the inside-out and outside-in wrapping of the tire. During the inflation process of the capsule, the capsule is inflated through the air nozzle communicated with the capsule. The communication between the capsule and the outside is only located at the air nozzle, and the air nozzle is directly connected through a trachea or other inflation driving members. In this way, there is no other position on the capsule for ventilation or exhaust, which can increase the sealing performance when the capsule expands and solve the sealing problem when the capsule expands.

[0017] 2. When the size of the tire that needs to be inside-out and outside-in wrapped changes, the expansion and contraction assembly drives the drum plate to move along the radial direction of the inner sleeve, changing the circle formed by the drum plate around the inner sleeve in the circumferential direction. Since the airbag is installed on the drum plate, when the diameter of the circle formed by the drum plate changes, the diameter of the airbag will also change accordingly, so as to adapt to different sizes of rubber, and it can meet the processing of tires of different sizes without the need to replace the capsule side drum, thus solving the problem of time-consuming and laborious replacement.

[0018] 3. By setting the cord fabric to at least two layers, the structural strength of the capsule can be further increased. During the process of capsule inflation, it is also a process of stretching the surface of the capsule. By arranging the cords of adjacent two layers of cord fabric to cross each other, when the surface of the capsule is stretched, the cord fabric in different obliquities can sense the anti-stretching effect of the capsule, thereby improving the structural strength of the capsule and extending the service life of the capsule. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0020] Figure 1 shows the state of the capsule side-drum device of the present utility model when mounting on the bead;

[0021] Figure 2 shows the state of the capsule side-drum device of the present utility model when reverse wrapping and inflating;

[0022] Figure 3 is a schematic structural diagram of the capsule side-drum device of the present utility model when inflating in the fitting state;

[0023] Figure 4 is a schematic structural diagram of the capsule side-drum device of the present utility model when contracting in the direct wrapping state;

[0024] Figure 5 is a cross-sectional view of the capsule side-drum device of the present utility model.

[0025] Among them, the above-mentioned drawings include the following reference numerals:

[0026] 1, main shaft; 2, inner sleeve; 3, expansion and contraction assembly; 31, slider; 32, lifting block; 33, driving member; 4, drum plate; 5, capsule; 6, air nozzle; 7, turntable bearing; 8, fitting drum. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0028] It should be pointed out that unless otherwise specified, all technical and scientific terms used in this application have the same meanings as those commonly understood by those of ordinary skill in the technical field to which this application belongs.

[0029] In the present utility model, unless otherwise stated, the orientation terms such as "upper, lower, top, bottom" are usually relative to the direction shown in the drawings or relative to the vertical, perpendicular or gravitational direction of the component itself; similarly, for the convenience of understanding and description, "inner, outer" refer to the inner and outer of the contour of each component itself, but the above orientation terms are not used to limit the present utility model.

[0030] In order to solve the problem of time-consuming and laborious side-drum of capsules in the prior art, the present utility model provides a capsule side-drum device and a agricultural tire building machine.

[0031] Embodiment 1

[0032] A capsule side-drum device, see Figures 1 to 5 , including a main shaft 1, an inner sleeve 2, a plurality of expansion and contraction components 3, a plurality of drum plates 4, a capsule 5 and an air nozzle 6. The inner sleeve 2 is installed on the main shaft 1. Along the axial direction of the main shaft 1, the inner sleeve 2 is slidably connected to the main shaft 1. Along the circumferential direction of the inner sleeve 2, the expansion and contraction components 3 are installed at intervals on the outer peripheral surface of the inner sleeve 2. At least a part of the expansion and contraction components 3 is arranged to be expandable and contractible along the radial direction of the inner sleeve 2. The drum plate 4 is connected to the expansion and contraction component 3 and is located on the outer peripheral surface of the expansion and contraction component 3. The expansion and contraction component 3 drives the drum plate 4 to move along the radial direction of the inner sleeve 2. The capsule 5 is installed on the outer peripheral surface of the drum plate 4. The air nozzle 6 is communicated with the capsule 5. The air nozzle 6 is arranged on one side of the capsule 5 close to the inner sleeve 2.

[0033] When reverse wrapping and forward wrapping operations need to be carried out on the side-drum, it is necessary to inflate the capsule 5. After inflation, the capsule 5 moves towards the tire to complete the reverse wrapping and forward wrapping of the tire. As Figure 2 shown, during the inflation process of the capsule 5, the capsule 5 is inflated through the air nozzle 6 communicated with the capsule 5. In this way, the connection between the capsule 5 and the outside is only located on the air nozzle 6. The air nozzle 6 is directly connected through a trachea or other inflation driving parts 33 (such as an air pump). In this way, there is no other position on the capsule 5 for ventilation or exhaust. This can increase the sealing performance when the capsule 5 expands and solve the sealing problem when the capsule 5 expands.

[0034] When the size level of the tire that needs to be reverse wrapped and forward wrapped changes, the expansion and contraction component 3 will drive the drum plate 4 to move along the radial direction of the inner sleeve 2, changing the circle formed by the drum plate 4 around the inner sleeve 2 in the circumferential direction. Since the capsule 5 is installed on the drum plate 4, when the diameter of the circle formed by the drum plate 4 changes, the diameter of the capsule 5 will also change accordingly, so as to adapt to different sizes of rubber, and it can meet the processing of tires of different sizes without the need to replace the capsule side-drum, thus solving the problem of time-consuming and laborious replacement.

[0035] Furthermore, the capsule 5 has a mounting part. The outer peripheral surface of the drum plate 4 has a mounting position. The mounting part is embedded in the mounting position. The air nozzle 6 is located at the mounting part and passes through the mounting part to communicate with the inside of the capsule 5.

[0036] By embedding the installation part of the capsule 5 in the installation position of the drum plate 4, the stability of the installation of the capsule 5 can be increased, and the situation of the capsule 5 falling off the drum plate 4 can be reduced. At the same time, by passing the air nozzle 6 through the installation position, the placement of the air nozzle 6 can be facilitated, and the interference between the air nozzle 6 and other components can be reduced.

[0037] Further, other positions of the capsule 5 except the installation part are flexible parts that can be deformed.

[0038] The capsule 5 will deform when inflated. At the same time, in order to increase the size that the capsule 5 can expand, the whole capsule 5 needs to be flexible except for the position connected to the installation part. Since the capsule 5 will deform when inflated and deflated, if the installation part of the capsule 5 is flexible, the connection between the installation part and the installation position will become loose due to repeated deformation, thus affecting the stability of the connection between the two. Therefore, the installation part of the capsule 5 needs to be set as non-flexible.

[0039] In this embodiment, the capsule 5 includes a liner layer, a ply cord layer, and a tread layer arranged in sequence, and the liner layer, the ply cord layer, and the tread layer are arranged in sequence from the inside to the outside of the capsule 5.

[0040] The inflation and deflation of the capsule 5 itself and the radial movement of the drum plate 4 driven by the expansion and contraction assembly 3 will both cause the capsule 5 to deform. Therefore, the capsule 5 is set as a multi-layer structure, and the materials of each layer structure are different, increasing the structural strength of the capsule 5 to increase the service life of the capsule 5.

[0041] Further, the ply cord layer is at least two layers, and the ply cord layers are stacked, and the cord threads of adjacent two ply cord layers are arranged crosswise.

[0042] By setting the ply cord to be at least two layers, the structural strength of the capsule 5 can be further increased. During the expansion process of the capsule 5, it is also a process of stretching the surface of the capsule 5. By arranging the cord threads of adjacent two ply cord layers crosswise, when the surface of the capsule 5 is stretched, the ply cords in different oblique directions can sense the anti-stretching effect of the capsule 5, thereby improving the structural strength of the capsule 5, increasing the service life of the capsule 5, and ensuring the service life requirements for large-range expansion.

[0043] In this embodiment, the air nozzle 6 is arranged at the midline position of the drum plate 4 parallel to the axis.

[0044] By arranging the air nozzle 6 at the midline position of the drum plate 4 parallel to the axis, when the drum plate 4 expands and contracts, the air nozzle 6 moves along the radial direction of the main shaft 1, avoiding displacement in other directions, thereby increasing the stability of the installation of the air nozzle 6.

[0045] The number of air nozzles 6 is multiple, and the air nozzles 6 are arranged at intervals along the axial direction of the inner sleeve 2.

[0046] The setting of the air nozzle 6 solves the problem of sealing when the capsule 5 expands. By setting multiple air nozzles 6, when inflating and deflating, the multiple air nozzles 6 work simultaneously, which can improve the inflating and deflating efficiency of the capsule 5.

[0047] As Figure 5 shown, in this embodiment, the slider 31 includes a slider 31, a lifting block 32 and a driving member 33. Along the axial direction of the inner sleeve 2, the slider 31 is slidably connected to the inner sleeve 2. One side of the slider 31 away from the axis of the inner sleeve 2 has a first inclined surface. The lifting block 32 is disposed on the side of the slider 31 away from the axis of the inner sleeve 2 and is radially movable. One side of the lifting block 32 close to the slider 31 has a second inclined surface that abuts and cooperates with the first inclined surface. The drum plate 4 is installed on the side of the lifting block 32 away from the slider 31. The driving member 33 is drivingly connected to the slider 31 and drives the slider 31 to move along the axial direction of the inner sleeve 2. The axial movement of the slider 31 drives the lifting block 32 to move radially through the first inclined surface and the second inclined surface.

[0048] The slider 31 and the lifting block 32 are cooperated through the mutually abutting first inclined surface and second inclined surface. When the slider 31 moves along the axial direction of the main shaft 1, due to the conversion effect of the inclined surface, the lifting block 32 will move along the radial direction of the main shaft 1 under the action of the inclined surface. The drum plate 4 is installed on the lifting block 32. When the lifting block 32 has a displacement in the radial direction of the main shaft 1, the drum plate 4 will move in the radial direction close to or away from the main shaft 1, thereby realizing the expansion and contraction process of the drum plate 4. The slider 31 is driven to move by the push rod of the driving member 33, which facilitates the expansion and contraction of the drum plate 4 and the capsule 5 installed on the drum plate 4, so as to adapt to tires of different sizes.

[0049] The driving member 33 in this embodiment adopts a servo motor, that is, the precise change of the side drum diameter of the capsule can be completed without replacing the tooling, and the fitting diameter and the reverse wrapping diameter of different specifications can be guaranteed. The capsule 5 in this embodiment can currently achieve a usage range spanning 4 sizes.

[0050] Further, the expansion and contraction assembly 3 further includes a turntable bearing 7. The turntable bearing 7 is disposed between the slider 31 and the push rod of the driving member 33. When the main shaft 1 rotates, the driving member 33 is docked and separated from the slider 31 through the turntable bearing 7.

[0051] Through the turntable bearing 7, the rotational movement of the side drum of the capsule 5 can be separated from the driving member 33.

[0052] Further, the capsule side drum device further includes a guiding assembly. The guiding assembly is disposed between the lifting block 32 and the inner sleeve 2. At least a part of the guiding assembly is movably disposed along the radial direction of the inner sleeve 2 and limits the radial movement of the lifting block 32 along the inner sleeve 2.

[0053] The guiding component is divided into two parts. One part is located on the lifting block 32, and the other part is located on the inner sleeve 2. The guiding component located on the lifting block 32 can move radially along the inner sleeve 2. Through the guiding component, the movement of the lifting block 32 can be limited, so that the lifting block 32 can only move radially along the inner sleeve 2, increasing the stability of the expansion and contraction of the lifting block 32, thereby increasing the working stability of the capsule side-drum device.

[0054] Embodiment 2

[0055] A radial tire building machine includes the capsule side-drum device in Embodiment 1. At the same time, it further includes a building drum 8. Multiple capsule side-drum devices can be provided. Capsule side-drum devices are provided on both sides of the building drum 8. When performing building and front wrapping, the capsule side-drum device can also expand and contract, as Figure 3 and Figure 4 shown, so as to cooperate with the diameter of the building drum 8 to achieve building and front wrapping operations.

[0056] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0057] 1. When the side-drum needs to perform front and back wrapping operations, the capsule 5 needs to be inflated. After inflation, the capsule 5 moves towards the tire to complete the front and back wrapping of the tire. During the inflation process of the capsule 5, the capsule 5 is inflated through the air nozzle 6 communicated with the capsule 5. The connection between the capsule 5 and the outside is only located at the air nozzle 6. The air nozzle 6 is directly connected through a trachea or other inflation driving member 33. In this way, there is no other position on the capsule 5 for ventilation or exhaust, which can increase the sealing performance when the capsule 5 expands and solve the sealing problem when the capsule 5 expands.

[0058] 2. When the size of the tire that needs to be front and back wrapped changes, the expansion and contraction component 3 will drive the drum plate 4 to move radially along the inner sleeve 2, changing the circle formed by the drum plate 4 around the inner sleeve 2 in the circumferential direction. Since the capsule 5 is installed on the drum plate 4, when the diameter of the circle formed by the drum plate 4 changes, the diameter of the capsule 5 will also change accordingly, so as to adapt to different sizes of rubber, and it can meet the processing of tires of different sizes without the need to replace the capsule side-drum, thus solving the problem of time-consuming and laborious replacement.

[0059] 3. By setting the cord fabric to at least two layers, the structural strength of the capsule 5 can be further increased. During the expansion process of the capsule 5, it is also a process of stretching the surface of the capsule 5. By arranging the cord threads of adjacent two cord fabric layers to cross each other, when the surface of the capsule 5 is stretched, the cord fabrics in different oblique directions can enhance the anti-stretching effect of the capsule 5, thereby improving the structural strength of the capsule 5 and extending the service life of the capsule 5.

[0060] Obviously, the embodiments described above are only a part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0061] 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, operations, devices, components, and / or combinations thereof.

[0062] It should be noted that the terms "first", "second", etc. in the description, claims and 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 such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order different from those illustrated or described herein.

[0063] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A capsule side-drum device, characterized in that, Comprising: A main shaft (1); An inner sleeve (2), the inner sleeve (2) is installed on the main shaft (1), along the axis direction of the main shaft (1), the inner sleeve (2) is slidably connected to the main shaft (1); A plurality of expansion and contraction components (3), along the circumferential direction of the inner sleeve (2), each of the expansion and contraction components (3) is spacedly installed on the outer peripheral surface of the inner sleeve (2), at least a part of the expansion and contraction component (3) is expandable and contractible along the radial direction of the inner sleeve (2); A plurality of drum plates (4), the drum plates (4) are connected to the expansion and contraction components (3) and are located on the outer peripheral surface of the expansion and contraction components (3), the expansion and contraction components (3) drive the drum plates (4) to move along the radial direction of the inner sleeve (2); A capsule (5), the capsule (5) is installed on the outer peripheral surface of the drum plate (4); An air nozzle (6), the air nozzle (6) is communicated with the capsule (5), and the air nozzle (6) is arranged on the side of the capsule (5) close to the inner sleeve (2).

2. The capsule side-drum device according to claim 1, wherein, The capsule (5) has a mounting portion, the outer peripheral surface of the drum plate (4) has a mounting position, the mounting portion is embedded in the mounting position, and the air nozzle (6) is located at the mounting portion and penetrates through the mounting portion to communicate with the inside of the capsule (5).

3. The capsule side-drum device according to claim 2, characterized in that, Other positions of the capsule (5) except the mounting portion are flexible portions that can be deformed.

4. The capsule side-drum device according to claim 1, characterized in that, The capsule (5) includes a lining layer, a cord fabric layer and a tread layer arranged in sequence, and in the direction from the inside to the outside of the capsule (5), the lining layer, the cord fabric layer and the tread layer are arranged in sequence.

5. The capsule side-drum device according to claim 4, characterized in that, The cord fabric layer is at least two layers, the cord fabric layers are stacked, and the cord threads of adjacent two cord fabric layers are arranged crosswise.

6. The capsule side-drum device according to claim 1, characterized in that The air nozzle (6) is arranged at the midline position of the drum plate (4) parallel to the axis; and / or The number of the air nozzles (6) is multiple, and each of the air nozzles (6) is spacedly arranged along the axial direction of the inner sleeve (2).

7. The capsule side-drum device according to any one of claims 1 to 6, characterized in that, The expansion and contraction component (3) includes: A slider (31), along the axial direction of the inner sleeve (2), the slider (31) is slidably connected to the inner sleeve (2), and one side of the slider (31) away from the axis of the inner sleeve (2) has a first inclined surface; A lifting block (32), the lifting block (32) is radially movably arranged on the side of the slider (31) away from the axis of the inner sleeve (2), and one side of the lifting block (32) close to the slider (31) has a second inclined surface in abutting cooperation with the first inclined surface, and the drum plate (4) is installed on the side of the lifting block (32) away from the slider (31); A driving member (33), the driving member (33) is drivingly connected to the slider (31) and drives the slider (31) to move along the axial direction of the inner sleeve (2), and the axial movement of the slider (31) drives the lifting block (32) to move radially through the first inclined surface and the second inclined surface.

8. The capsule side-drum device according to claim 7, characterized in that, The expansion and contraction assembly (3) further includes a turntable bearing (7), and the turntable bearing (7) is arranged between the slider (31) and the driving member (33). When the main shaft (1) rotates, the driving member (33) is docked with and separated from the slider (31) through the turntable bearing (7).

9. The capsule side bulging device according to claim 7, characterized in that, The capsule side-drum device further includes a guiding assembly, and the guiding assembly is arranged between the lifting block (32) and the inner sleeve (2). At least a part of the guiding assembly is movably arranged along the radial direction of the inner sleeve (2) and limits the movement of the lifting block (32) along the radial direction of the inner sleeve (2).

10. An agricultural tire forming machine, characterized in that, It includes the capsule side-drum device according to any one of claims 1 to 9.

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