Cushion rubber attaching auxiliary device and forming drum

Abstract

The utility model provides a cushion rubber attaching auxiliary device and an assembly drum. The cushion rubber attaching auxiliary device comprises a first supporting assembly and a second supporting assembly, at least one part of the first supporting assembly and at least one part of the second supporting assembly move in the direction close to or away from each other in the axial direction of the forming drum, and the first supporting assembly and the second supporting assembly are movably arranged in the radial direction of the forming drum; the first supporting assembly and the second supporting assembly are both connected with the connecting frame; and the radial driving part is in driving connection with the connecting frame and drives the first supporting assembly and the second supporting assembly to synchronously and radially move through the connecting frame. The utility model solves the problem that the attaching effect of the auxiliary device for attaching the tire shoulder pad rubber in the prior art is poorer.

Description

Technical Field

[0001] This utility model relates to the field of molding machine technology, and more specifically, to a pad adhesive bonding auxiliary device and a molding drum. Background Technology

[0002] The traditional tire shoulder pad bonding auxiliary device consists of a fixed sleeve positioned at the center of the main shaft, with several cylinders and stainless steel support plates distributed circumferentially on both sides of the fixed sleeve. The working process is as follows: the two side drums of the forming drum separate outwards, the support plates on the tire shoulder pad device unfold with the side drums to the bonding diameter, the transfer ring transfers the tire carcass cylinder to the forming drum station, and the tire shoulder pad material is applied. After application, the two side drums of the forming drum move inwards to flatten, and the support plates of the tire shoulder pad device retract upwards under the action of the cylinders, completing one application cycle. In this method, because the support plates fold upwards, the material must be raised by the two side drums during super-shaping to provide space for the support plates of the pad device. This results in high requirements for the coordination between the two parts of the device and poor bonding effect. Furthermore, because the width of the support plates is fixed, the support plates need to be replaced when applying pads of different widths, which is time-consuming and affects bonding efficiency. Utility Model Content

[0003] The main purpose of this invention is to provide a pad adhesive bonding auxiliary device and a molding drum to solve the problem of poor bonding effect of the existing tire shoulder pad adhesive bonding auxiliary device.

[0004] To achieve the above objectives, according to one aspect of the present invention, a padding adhesive bonding auxiliary device is provided, comprising: a first support assembly; a second support assembly, at least a portion of which moves toward or away from each other along the axial direction of a forming drum, and the first and second support assemblies are movably disposed radially along the forming drum; a connecting frame, to which both the first and second support assemblies are connected; and a radial drive member, which is drivenly connected to the connecting frame and drives the first and second support assemblies to move radially synchronously through the connecting frame.

[0005] Furthermore, the connecting frame includes a first connecting segment, an intermediate connecting segment, and a second connecting segment connected in sequence. A first support component is installed on the first connecting segment, a second support component is installed on the second connecting segment, and a radial drive component is drivenly connected to the intermediate connecting segment.

[0006] Furthermore, the intermediate connecting section includes multiple bent and connected sub-connecting sections, which form a U-shaped structure with an opening facing the central axis of the forming drum. At least a portion of the radial drive member is located within the U-shaped structure and is driven to connect with the inner wall of the U-shaped structure.

[0007] Further, the first support assembly and / or the second support assembly includes: a support block having a support surface for supporting the tire carcass; and an axial drive member connected to the connecting frame, the output end of which is drivenly connected to the support block and drives the support block to move axially along the forming drum.

[0008] Furthermore, along the axial direction of the forming drum, the output ends of the axial drive members of the first support assembly and the second support assembly are located on opposite sides of the connecting frame.

[0009] Furthermore, the support block has a toothed structure, and when the support block of the first support assembly and the support block of the second support assembly move toward each other, the toothed rack of one toothed structure can extend into the tooth groove of the other toothed structure.

[0010] Furthermore, the first support assembly and / or the second support assembly are movably connected to the connecting frame and their installation positions on the connecting frame can be changed.

[0011] Furthermore, a guide rail structure is provided between the first support component and / or the second support component and the connecting frame. The guide rail structure includes a protrusion and a slide. The protrusion is movably disposed in the slide, and the slide extends along the axial direction of the forming drum.

[0012] Furthermore, the adhesive bonding auxiliary device also includes a locking member, which is disposed between the first support assembly and / or the second support assembly and the connecting frame, and is used to lock the first support assembly and / or the second support assembly onto the connecting frame.

[0013] According to another aspect of the present invention, a molding drum is provided, including side drums and the aforementioned adhesive bonding auxiliary device. There are multiple side drums, and the adhesive bonding auxiliary device is disposed between two adjacent side drums. The adhesive bonding auxiliary device is arranged in multiple ways along the circumference of the molding drum.

[0014] By applying the technical solution of this utility model, a first support component and a second support component are provided, both of which are movable in the axial and radial directions of the molding drum. This allows for adjustment of both the axial width and radial position of the first and second support components. Furthermore, this embodiment also includes a connecting frame, on which both the first and second support components are mounted. This allows all three components to radially expand and contract synchronously, enabling the radial drive component to synchronously drive the first and second support components to move radially. This ensures the synchronicity of the radial movement of the first and second support components, maintaining their consistent radial positions. This reduces the requirement for coordination between components such as the side drum. Moreover, since the radial expansion and contraction of the two support components are not affected by the side drum, it facilitates material removal after adhesive bonding, ensuring a better bonding effect. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0016] Figure 1 A schematic diagram of the structure of multiple adhesive bonding auxiliary devices of this utility model is shown.

[0017] Figure 2 It shows Figure 1 A schematic diagram of the structure of the adhesive bonding auxiliary device in the support block when it expands;

[0018] Figure 3 It shows Figure 1 A schematic diagram of the structure of a single adhesive bonding auxiliary device;

[0019] Figure 4 A schematic diagram of the connection frame and axial drive component of the adhesive bonding auxiliary device is shown.

[0020] Figure 5 A schematic diagram of the molding drum of this utility model is shown.

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

[0022] 10. First support assembly; 11. Support block; 12. Axial drive component; 20. Second support assembly; 30. Connecting frame; 40. Radial drive component; 41. First connecting section; 42. Intermediate connecting section; 43. Second connecting section; 50. Guide rail structure; 60. Side drum; 70. Fixing seat. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] 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 one of ordinary skill in the art to which this application pertains.

[0025] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0026] To address the problem of poor bonding effect in existing tire shoulder pad adhesive bonding auxiliary devices, this utility model provides an adhesive bonding auxiliary device and a molding drum.

[0027] like Figures 1 to 4 The illustrated adhesive bonding auxiliary device includes a first support assembly 10, a second support assembly 20, a connecting frame 30, and a radial drive member 40. At least a portion of the first support assembly 10 and the second support assembly 20 move toward or away from each other along the axial direction of the molding drum, and the first support assembly 10 and the second support assembly 20 are movably arranged radially along the molding drum. Both the first support assembly 10 and the second support assembly 20 are connected to the connecting frame 30. The radial drive member 40 is drivenly connected to the connecting frame 30 and drives the first support assembly 10 and the second support assembly 20 to move radially synchronously through the connecting frame 30.

[0028] This embodiment features a first support component 10 and a second support component 20, both of which are movable in both the axial and radial directions of the molding drum. This allows for adjustment of both the axial width and radial position of the first and second support components 10 and 20. A connecting frame 30 is also provided, on which both the first and second support components 10 and 20 are mounted. This allows all three components to radially expand and contract synchronously, enabling the radial drive component 40 to synchronously drive the first and second support components 10 and 20 to move radially. This ensures the synchronicity of their radial movement and maintains consistent radial positions, reducing the coordination requirements of components such as the side drum 60. Furthermore, since the radial expansion and contraction of the two support components are unaffected by the side drum 60, it facilitates material removal after adhesive bonding, ensuring a better bonding effect.

[0029] like Figure 2 and 4 As shown, in this embodiment, the connecting frame 30 includes a first connecting segment 41, an intermediate connecting segment 42, and a second connecting segment 43 connected sequentially. A first support assembly 10 is mounted on the first connecting segment 41, and a second support assembly 20 is mounted on the second connecting segment 43. A radial drive member 40 is drivenly connected to the intermediate connecting segment 42. Thus, the radial drive member 40 is located between the first support assembly 10 and the second support assembly 20, ensuring that the driving force transmitted from the radial drive member 40 to the first support assembly 10 and the second support assembly 20 is basically balanced, guaranteeing the consistency of radial movement between the first support assembly 10 and the second support assembly 20. This embodiment uses the first connecting segment 41, the intermediate connecting segment 42, and the second connecting segment 43 arranged circumferentially along the forming drum, which helps to reduce the axial space and facilitates the axial movement of the first support assembly 10 and the second support assembly 20.

[0030] In this embodiment, the intermediate connecting section 42 includes multiple bent and connected sub-connecting sections. The sub-connecting sections form a U-shaped structure with openings facing the central axis of the forming drum. Thus, the intermediate connecting section 42 cooperates with the first connecting section 41 and the second connecting section 43, so that the connecting frame 30 as a whole forms a U-shaped structure. The first support component 10 and the second support component 20 are located above the two ends of the U-shaped structure, and at least a part of the radial drive member 40 is located inside the U-shaped structure. The output end of the radial drive member 40 is driven to connect with the bottom wall in the depth direction of the U-shaped structure, so that the radial drive member 40 can directly transmit the driving force to the middle position of the U-shaped structure, ensuring the driving force balance of the first support component 10 and the second support component 20, and ensuring the consistency of the radial expansion and contraction of the first support component 10 and the second support component 20.

[0031] Of course, the specific structural form of the connecting frame 30 can also be adjusted as needed, and is not limited to the structural form described in this embodiment. It can also be simply set as a plate-shaped part, etc.

[0032] like Figure 2 and Figure 3As shown, the first support component 10 and the second support component 20 in this embodiment have the same structural form, differing only in their position and orientation. Taking the first support component 10 as an example, it includes a support block 11 and an axial drive component 12. The support block 11 has a support surface for supporting the tire carcass, which is the side of the support block 11 away from the center of the forming drum, i.e., the outer side. The tire carcass and other components can be supported on the support surface. The axial drive component 12 is connected to the connecting frame 30, and the output end of the axial drive component 12 is driven to connect to the support block 11, driving the support block 11 to move axially along the forming drum. In this embodiment, both the radial drive component 40 and the axial drive component 12 are pneumatically driven. The axial drive component 12 is a pneumatic slide. The cylinder part of the pneumatic slide can be directly installed or indirectly installed on the connecting frame 30 through a connecting plate or other structure, while the cylinder rod part is connected to the support block 11 as the output end. The cylinder rod extends axially along the forming drum, so that when the cylinder rod moves axially, it can drive the support block 11 to move axially, thereby changing the axial position of the support block 11. Of course, the first support component 10 and the second support component 20 can also have different structural forms, and other structural forms can be adopted as needed. Similarly, the radial drive component 40 and the axial drive component 12 can also adopt other forms of drive components as needed.

[0033] In this embodiment, the support block 11 is an arc-shaped block with a certain radial thickness and an arc-shaped support surface, which makes the structure compact, has a high degree of roundness, and good rigidity, thus ensuring the support effect.

[0034] In this embodiment, along the axial direction of the forming drum, the output ends of the axial drive members 12 of the first support assembly 10 and the second support assembly 20 are located on opposite sides of the connecting frame 30, so that the two output ends can be connected to the two support blocks 11 respectively. The two axial drive members 12 can drive the two support blocks 11 to move closer to each other or further away from each other, thereby adjusting the overall axial width of the pad adhesive bonding auxiliary device. This allows the axial width of the pad adhesive bonding auxiliary device to adapt to operations such as pad adhesive bonding, ensuring processing quality and processing effect.

[0035] like Figure 1 and Figure 2As shown, in this embodiment, the support blocks 11 of the first support component 10 and the second support component 20 both have toothed structures, and the opening directions of their toothed structures are arranged opposite to each other, and the toothed structures are circumferentially misaligned, so that the rack of one toothed structure is aligned with the tooth groove of the other toothed structure. Thus, when adjusting the axial position, if the support blocks 11 of the first support component 10 and the second support component 20 are moved closer to each other, the rack of one toothed structure can extend into the tooth groove of the other toothed structure, allowing the toothed structures to interlock and fit together. This results in a smaller overall axial width for the adhesive bonding auxiliary device. Conversely, when the support blocks 11 of the first support component 10 and the second support component 20 are moved further apart, the toothed structures separate, and the rack disengages from the tooth groove. This allows for a larger overall axial width for the adhesive bonding auxiliary device, ensuring adaptability to various width requirements and improving its applicability.

[0036] In this embodiment, the first support component 10 and the second support component 20 are movably connected to the connecting frame 30, allowing for changes in their mounting positions on the connecting frame 30. Specifically, the axial drive component 12 is movably engaged with the connecting frame 30, and their movement direction is along the axial direction of the forming drum. This allows for further adjustment of the axial position of the support block 11. When the width of the tire shoulder pad rubber increases, in addition to adjusting the axial position of the support block 11 via the axial drive component 12, the position of the axial drive component 12 on the connecting frame 30 can also be adjusted, facilitating the application of tire shoulder pad rubber of different widths. Of course, besides the method where both the first support component 10 and the second support component 20 are movably engaged with the connecting frame 30, a method where only one of the first support component 10 and the second support component 20 is movably engaged with the connecting frame 30 can also be used.

[0037] like Figure 4As shown, in this embodiment, a guide rail structure 50 is provided between the first support component 10 and the second support component 20 and the connecting frame 30. The guide rail structure 50 includes a protrusion and a slide. Taking the cooperation between the first support component 10 and the connecting frame 30 as an example, one of the protrusion and the slide is provided on the axial drive component 12, and the other is provided on the connecting frame 30. In this embodiment, the protrusion is provided on the connecting frame 30, and the slide is provided at the bottom of the cylinder of the axial drive component 12. The protrusion is movably provided in the slide, and the slide extends along the axial direction of the forming drum, so that the axial drive component 12 can achieve the effect of axial movement on the connecting frame 30 through the mutual cooperation between the protrusion and the slide. In this embodiment, the protrusion is set as a dovetail shape, and the slide is a dovetail groove, thereby ensuring that the axial drive component 12 can only move axially and cannot move radially, ensuring the reliability of the cooperation with the connecting frame 30. The cooperation form between the second support component 20 and the connecting frame 30 is the same as described above, and will not be repeated here.

[0038] In this embodiment, the adhesive bonding auxiliary device further includes a locking component. A locking component is provided between the first support assembly 10 and / or the second support assembly 20 and the connecting frame 30, and is used to lock the first support assembly 10 and / or the second support assembly 20 onto the connecting frame 30. The locking component in this embodiment is a set screw. A threaded hole is provided on the connecting frame 30, and the set screw thread passes through the threaded hole, allowing it to abut against the cylinder of the axial drive component 12. Thus, when it is necessary to adjust the position of the first support assembly 10 or the second support assembly 20 as a whole, the set screw is loosened, and the axial position can be adjusted. After adjustment, the set screw is tightened, so that the set screw presses against the axial drive component 12, thereby locking the position of the axial drive component 12 and preventing it from moving freely during normal bonding. This not only allows the support block 11 to adapt to different width requirements, but also makes adjustment convenient, eliminating the need to disassemble and replace the support block 11; only the position needs to be adjusted, which helps improve bonding efficiency.

[0039] It should be noted that the adjustment method described above using locking components in this embodiment is a manual method, so the machine needs to be stopped for adjustment. Of course, an automatic adjustment mechanism such as a cylinder assembly can also be set to realize the automatic adjustment of the axial position of the first support assembly 10 and the second support assembly 20.

[0040] This embodiment is provided with multiple locking components. Locking components are provided between the first support component 10 and the second support component 20 and the connecting frame 30. The locking components at the two support components are independent of each other and can be adjusted separately. Of course, a locking component can also be provided between the first support component 10 and the second support component 20 and the connecting frame 30. In this case, the other support component and the connecting frame 30 can be fixedly connected in a non-adjustable manner.

[0041] like Figure 1 and Figure 5 As shown, this embodiment also provides a molding drum, including side drums 60, fixing seats 70, and the aforementioned adhesive bonding auxiliary device. Multiple side drums 60 are provided, and fixing seats 70 are disposed between the side drums 60. The adhesive bonding auxiliary device is mounted on the fixing seat 70, thus placing the adhesive bonding auxiliary device between adjacent side drums 60 to facilitate adhesive bonding. Furthermore, considering the radial expansion and contraction action and the generally cylindrical shape of the tire carcass, the fixing seat 70 in this embodiment is designed as a ring structure. Multiple adhesive bonding auxiliary devices are arranged circumferentially along the molding drum, allowing the adhesive bonding auxiliary device to support the tire carcass and the adhesive throughout the entire circumference, ensuring overall support effectiveness.

[0042] The main process steps of using the adhesive bonding auxiliary device in this embodiment are as follows:

[0043] 1. The two side drums 60 of the forming drum move outward to the predetermined position. The axial drive component 12 and radial drive component 40 on both sides of the pad adhesive bonding auxiliary device are inflated, so that the support blocks 11 on the left and right sides move axially to both sides and expand radially to the bonding diameter.

[0044] 2. The tire carcass assembly bonded at the tire carcass drum station is transferred to the forming drum station by the transfer ring. The forming drum locks the steel ring, and the tire shoulder pad adhesive begins to be bonded.

[0045] 3. After the tire shoulder pad adhesive is applied, the axial drive component 12 and radial drive component 40 on both sides of the pad adhesive application auxiliary device are inflated, so that the support blocks 11 on the left and right sides move towards each other and retract radially to the fall-back diameter.

[0046] 4. After the padding and bonding auxiliary device shrinks, the two side drums 60 move towards the middle and flatten, the forming drum inflates the middle drum, causing the rubber material to bulge upwards, the belt layer transfer ring transfers the belt layer assembly to the forming drum station, and the side drums 60 reverse wrap and roll the rubber material to finally form the tire blank.

[0047] It should be noted that the axial, radial, and circumferential directions in the above embodiments are all referenced to the entire molded drum. The "multiple" in the above embodiments refers to at least two.

[0048] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0049] 1. This invention solves the problem of poor adhesion effect in existing tire shoulder pad adhesive bonding auxiliary devices;

[0050] 2. The synchronicity of the radial movement of the first support component and the second support component ensures that their radial positions remain consistent, thereby reducing the requirements for the coordination of parts such as the side drum.

[0051] 3. Since the radial expansion and contraction of the two support components are not affected by the side drum, it is easy to remove the adhesive after bonding, thus ensuring a better bonding effect;

[0052] 4. The support block has a toothed structure, which is compact, has a high degree of roundness, and good rigidity;

[0053] 5. Both the support assembly as a whole and the individual support blocks can be axially adjusted to fit tire shoulder pads of different widths. The adjustment is convenient and does not require disassembly or replacement of the support blocks; only the position needs to be adjusted, which helps improve the bonding efficiency.

[0054] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0055] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0056] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this 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 where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0057] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A padding adhesive bonding auxiliary device, characterized in that, include: First support component (10); The second support assembly (20) is provided, at least a portion of the first support assembly (10) and the second support assembly (20) move toward or away from each other along the axial direction of the forming drum, and the first support assembly (10) and the second support assembly (20) are movably disposed along the radial direction of the forming drum. A connecting frame (30) is provided, to which both the first support assembly (10) and the second support assembly (20) are connected; A radial drive member (40) is driven to connect with the connecting frame (30) and drives the first support assembly (10) and the second support assembly (20) to move radially synchronously through the connecting frame (30).

2. The adhesive bonding auxiliary device according to claim 1, characterized in that, The connecting frame (30) includes a first connecting section (41), an intermediate connecting section (42), and a second connecting section (43) connected in sequence. The first support component (10) is installed on the first connecting section (41), the second support component (20) is installed on the second connecting section (43), and the radial drive component (40) is driven to connect with the intermediate connecting section (42).

3. The adhesive bonding auxiliary device according to claim 2, characterized in that, The intermediate connecting section (42) includes a plurality of bent connecting sub-connecting sections, the sub-connecting sections forming a U-shaped structure with an opening facing the central axis of the forming drum, at least a portion of the radial drive member (40) being located within the U-shaped structure and driven to connect with the inner wall of the U-shaped structure.

4. The adhesive bonding auxiliary device according to claim 1, characterized in that, The first support component (10) and / or the second support component (20) include: Support block (11), the support block (11) having a support surface for supporting the tire carcass; An axial drive (12) is connected to the connecting frame (30). The output end of the axial drive (12) is driven to the support block (11) and drives the support block (11) to move along the axial direction of the forming drum.

5. The adhesive bonding auxiliary device according to claim 4, characterized in that, Along the axial direction of the forming drum, the output end of the axial drive member (12) of the first support assembly (10) and the output end of the axial drive member (12) of the second support assembly (20) are located on opposite sides of the connecting frame (30).

6. The adhesive bonding auxiliary device according to claim 4, characterized in that, The support block (11) has a toothed structure. When the support block (11) of the first support assembly (10) and the support block (11) of the second support assembly (20) move toward each other, the toothed structure of one of them can extend into the tooth groove of the other.

7. The adhesive bonding auxiliary device according to claim 1, characterized in that, The first support component (10) and / or the second support component (20) are movably connected to the connecting frame (30) and their installation positions on the connecting frame (30) can be changed.

8. The adhesive bonding auxiliary device according to claim 7, characterized in that, A guide rail structure (50) is provided between the first support component (10) and / or the second support component (20) and the connecting frame (30). The guide rail structure (50) includes a protrusion and a slide. The protrusion is movably disposed in the slide, and the slide extends along the axial direction of the forming drum.

9. The adhesive bonding auxiliary device according to claim 7, characterized in that, The adhesive bonding auxiliary device further includes a locking member, which is disposed between the first support assembly (10) and / or the second support assembly (20) and the connecting frame (30), and is used to lock the first support assembly (10) and / or the second support assembly (20) onto the connecting frame (30).

10. A molded drum, characterized in that, The device includes a side drum (60) and an adhesive bonding auxiliary device according to any one of claims 1 to 9, wherein there are multiple side drums (60), the adhesive bonding auxiliary device is disposed between two adjacent side drums (60), and there are multiple adhesive bonding auxiliary devices, each of which is arranged circumferentially along the molding drum.

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