Transfer device of regular circular ring tire building machine

Abstract

The utility model relates to the technical field of tire machinery, in particular to a transfer device of a regular circular ring tire building machine. Comprising a rotating ring body which is installed on a fixed ring body and can axially rotate around the circle center of the fixed ring body; the multiple swing connecting rods are evenly distributed around the rotating ring body, one ends of the swing connecting rods are connected with the rotating ring body through the swing connecting rod driving rollers and the guide grooves, and the other ends of the swing connecting rods support the clamping tiles through tile supporting shafts; the number of the clamping tiles corresponds to that of the swing connecting rods, the clamping tiles are connected to the swing connecting rods through tile supporting shafts, and the clamping tiles expand and contract in the radial direction of the rotating ring body so as to clamp a tire part; according to the scheme, the rotating ring body can drive the swing connecting rod through the guide groove structure, so that the clamping tile blocks expand or contract in the radial direction under the action of the guide flat keys, the operation stability and efficiency are guaranteed through the design, and high-precision clamping is guaranteed in the tire forming process.

Description

Technical Field

[0001] The utility model relates to the technical field of tire machinery, and particularly relates to a transfer device of a positive circular ring tire forming machine. Background Art

[0002] In the tire manufacturing industry, tire forming is a crucial process, which is directly related to the quality, uniformity and dynamic balance of tires. When traditional tire forming machines transfer belt layer tread half-components to a forming drum or unload a tire embryo formed on the forming drum, a complex transfer ring device controlled by multiple cylinders or electric cylinders is mostly used. These devices usually include a plurality of independent clamping tiles, and each tile needs to be controlled separately to clamp tires of different specifications. However, this design has the following significant technical defects:

[0003] Since the transfer ring device controlled by traditional multiple cylinders or electric cylinders includes a large number of independent control components, it not only increases the manufacturing cost of the equipment, but also improves the difficulty of maintenance and repair.

[0004] When producing tires of different specifications, it is often necessary to adjust or replace the number and position of the clamping tiles. This process is not only time-consuming and laborious, but also may lead to a reduction in production efficiency.

[0005] Since each clamping tile is independently controlled, it is difficult to ensure that they act synchronously at the same time and in the same position, thus affecting the clamping accuracy and forming quality of the tires. Summary of the Utility Model

[0006] The utility model provides a transfer device of a positive circular ring tire forming machine, aiming to improve the clamping accuracy and production efficiency of the tire forming machine.

[0007] To achieve the above purpose, the technical solution of the utility model is as follows:

[0008] A transfer device of a positive circular ring tire forming machine includes:

[0009] A fixed ring body, serving as the support basis of the overall structure;

[0010] A rotating ring body, installed on the fixed ring body and capable of axially rotating around the center of the fixed ring body;

[0011] A plurality of swing link rods, evenly distributed around the rotating ring body. One end of each swing link rod is connected to the rotating ring body through a swing link rod driving roller and a guide groove, and the other end supports a clamping tile through a tile support shaft;

[0012] Clamping tiles, corresponding in number to the swing link rods, are connected to the swing link rods through tile support shafts, and the clamping tiles expand and contract along the radial direction of the rotating ring body to clamp tire components;

[0013] A driving cylinder or an electric cylinder, as a power source, has its cylinder rod or electric cylinder rod directly or indirectly connected to the rotating ring body, and is used to drive the rotation of the rotating ring body, thereby driving the movement of the swing link and the clamping tile;

[0014] The swing link fixed shaft is fixed on the fixed ring body and provides a rotation fulcrum for the swing link;

[0015] The tile guiding flat key has one end fixedly arranged on the supporting structure of the clamping tile, and the other end passes through the guiding track of the adjacent tile, and is used to ensure the stability and directionality of the clamping tile during the radial expansion and contraction process.

[0016] Further, the clamping tiles adopt an odd number structure to form an asymmetric structure, which is used to reduce the sagging phenomenon of the tire components during the clamping process.

[0017] Further, the guiding flat key is provided with an edge to prevent rotation during the guiding process.

[0018] Further, the driving cylinder or the electric cylinder is precisely controlled through a control system to ensure the synchronous movement of each clamping tile and achieve an accurate clamping effect.

[0019] Further, a safety protection device is also included, which is installed on the periphery of the fixed ring body, used to detect whether there are people approaching, and is electrically connected to the control system to ensure operation safety.

[0020] The beneficial effects achieved by the present utility model are:

[0021] For a transfer device of a positive circular ring tire forming machine of the present utility model, the device includes a fixed ring body, a rotating ring body, a swing link, clamping tiles, and a driving cylinder or an electric cylinder. Its design enables the rotating ring body to drive the swing link through the guiding groove structure, and then enables the clamping tiles to expand or contract radially under the action of the guiding flat key. Such a design ensures the stability and efficiency of the operation and ensures high-precision clamping during the tire forming process.

[0022] For a transfer device of a positive circular ring tire forming machine of the present utility model, the clamping tiles adopt an odd number structure to form an asymmetric arrangement. Such a design can effectively cope with the sagging phenomenon that may occur to the tire embryo or semi-finished product during the production process.

[0023] For a transfer device of a positive circular ring tire forming machine of the present utility model, this design has a large clamping range and can meet the different production specification requirements of the same type of forming machine without replacing the clamping tiles, increasing the flexibility and economy of the equipment.

[0024] The transfer device of a positive circular ring tire forming machine of the present utility model ensures that the clamping force of the clamping tile is proportional to its driving force through the carefully designed force state of the mechanism, so as to effectively maintain the balance of the clamping force throughout the working cycle and further improve the product quality. Brief Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0026] Figure 1 It is a schematic diagram of the overall structure of a transfer device of a positive circular ring tire forming machine;

[0027] Figure 2 It is a partial enlarged view of a transfer device of a positive circular ring tire forming machine;

[0028] Figure 3 It is a force analysis diagram of a transfer device of a positive circular ring tire forming machine;

[0029] Figure 4 It is a partial enlarged view of the guiding flat key part of a transfer device of a positive circular ring tire forming machine;

[0030] In the figures, 1, fixed ring body; 2, rotating ring body; 21, guiding groove; 3, swing link; 4, clamping tile; 41, guiding track; 5, driving cylinder or electric cylinder; 6, fixed shaft of the swing link; 7, driving roller of the swing pull rod; 8, support shaft of the tile; 9, guiding flat key; a, included angle between the clamping force direction of the clamping tile and the swing link; b, included angle between the driving force direction of the rotating ring body and the swing link; F1, clamping force of the clamping tile; F2, driving force of the rotating ring body; L1, swing arm length of the clamping tile; L2, driving arm length of the rotating ring body.

[0031] The realization of the purpose, functional features and advantages of the present utility model will be further described in conjunction with the embodiments with reference to the drawings. Detailed Embodiments

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0033] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, then such directional indications are only used to explain the relative positional relationship, movement conditions, etc. between components in a certain specific posture (as shown in the attached drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, then such descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or the solution where A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those skilled in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0035] This patent is used for a tire building machine, which transfers the belted tread half-components produced by a belt drum to a building drum or unloads the tire embryo formed by the building drum. It belongs to a key component of the tire building machine, and the clamping accuracy directly affects the uniformity and dynamic balance of the tire.

[0036] As Figures 1-4 shown, a transfer device for a positive circular tire building machine includes:

[0037] A fixed ring body 1, which serves as the support foundation for the overall structure; the fixed ring body 1 provides a stable platform, and all other components are installed on it. It ensures the fixed positions of other components and provides support for the stable operation of the entire system.

[0038] A rotating ring body 2, which is installed on the fixed ring body 1 and can rotate axially around the center of the fixed ring body 1; the rotating ring body 2 is installed on the fixed ring body 1 and can rotate at the center of the fixed ring body 1. The main function of the rotating ring body 2 is to convert the power from a driving cylinder or an electric cylinder 5 into the swinging motion of a swinging connecting rod 3, and then drive the radial expansion and contraction of the clamping tiles 4.

[0039] The swing link 3, with multiple numbers, is evenly distributed around the rotating ring body 2. One end of the swing link 3 is connected to the rotating ring body 2 through the swing link 3 driving roller and the guide groove 21, and the other end is supported by the tile support shaft 8 to support the rotation of the clamping tile 4; The swing links 3 are evenly distributed around the rotating ring body 2. One end of each swing link 3 is connected to the guide groove 21 on the rotating ring body 2 through the driving roller. Among them, one corner of the swing link 3 is rotatably connected to the swing link 3 fixed shaft 6 on the fixed ring body 1, and the other end of the swing link 3 is connected to the clamping tile 4 through the tile support shaft 8. The main function of the swing link 3 is to convert the rotational motion of the rotating ring body 2 into the radial motion of the clamping tile 4 to achieve the clamping of tire components.

[0040] The clamping tiles 4, with the number corresponding to that of the swing links 3, are connected to the swing links 3 through the tile support shafts 8. The clamping tiles 4 expand and contract along the radial direction of the rotating ring body 2 to clamp the tire components; The number of the clamping tiles 4 corresponds to that of the swing links 3, and they are connected to the swing links 3 through the tile support shafts 8. The clamping tiles 4 are responsible for actually contacting and clamping the tire components. When the rotating ring body 2 rotates, they will expand or contract along the radial direction of the rotating ring body 2 under the action of the guide flat key 9.

[0041] The driving cylinder or electric cylinder 5, as the power source, has its cylinder rod or electric cylinder rod directly or indirectly connected to the rotating ring body 2, and is used to drive the rotation of the rotating ring body 2, thereby driving the movements of the swing link 3 and the clamping tile 4;

[0042] The swing link 3 fixed shaft 6 is fixed on the fixed ring body 1 to provide a rotation fulcrum for the swing link 3;

[0043] One end of the tile guide flat key 9 is fixedly arranged on the support structure of the clamping tile 4, and the other end passes through the guide track 41 of the adjacent tile, which is used to ensure the stability and directionality of the clamping tile 4 during the radial expansion and contraction process. One end of the tile guide flat key 9 is fixedly arranged on the support structure of the clamping tile 4, and the other end passes through the guide track 41 of the adjacent tile. Its main function is to ensure the stability and directionality of the movement of the clamping tile 4 during the radial expansion and contraction process and prevent the tile from deviating from the predetermined track.

[0044] The clamping tiles 4 adopt an odd number structure, such as 15 pieces, to form an asymmetric structure, which is used to reduce the sagging phenomenon of the tire components during the clamping process and improve the clamping stability. The guide flat key 9 is provided with edges to avoid rotation during the guiding process and improve the guiding stability. The driving cylinder or electric cylinder 5 is precisely controlled through the control system to ensure the synchronous movement of each clamping tile 4 and achieve an accurate clamping effect.

[0045] It also includes a safety protection device, which is installed on the periphery of the fixed ring body 1, used to detect whether there are people approaching, and is electrically connected to the control system to ensure operation safety. The safety protection device cooperates with the control system. When it detects that there are people approaching, the control system automatically stops the operation of the driving cylinder or the electric cylinder 5 to prevent accidents.

[0046] As Figure 2 shown, the positive circular ring is composed of a fixed ring body 1, a rotating ring body 2, a swing link 3, a clamping tile 4, and a driving cylinder or an electric cylinder 5. The fixed ring body 1 mainly plays a supporting role, enabling the rotating ring body 2 to rotate axially around the center of the circle, and at the same time supporting the swing link 3 to swing around the swing link fixed shaft 6; the rotating ring body 2 is a driving component for driving the swing link 3 to swing. The swing link driving roller 7 installed on the swing railing 3 is stuck in the guiding groove on the rotating ring body 2. When the rotating ring body 2 rotates, the guiding groove pushes the swing link driving roller 7 to rotate in the circumferential direction, thereby driving the swing link 3 to swing; the end of the swing link 3 supports the clamping tile 4 through the tile support shaft 8. As the swing link 3 swings, the clamping tile 4 expands and contracts radially along the rotating ring body 2 under the guidance of the tile guiding key 9. The clamping tile 4 adopts an odd-number structure, such as 15 groups, so as to form an asymmetric structure to ensure the sagging generated when the clamping tile 4 clamps the tire blank and semi-finished products during the production process of the tire forming machine. The driving cylinder or the electric cylinder 5 is the power source.

[0047] It is driven by a single cylinder or an electric cylinder to ensure the synchronous movement of each clamping tile 4 and form a perfect circle. It has a large clamping range and can meet all production specifications of a single model of the forming machine without replacing the clamping tile 4. The rotating ring body 2 adopts a guiding groove structure. The swing link 3 is equipped with a swing link driving roller 7. The clamping tile 4 is connected to the swing link 3 through the tile fixed shaft 8, and the clamping direction of each group of clamping tiles 4 is controlled to pass through the center of the circle through the guidance of the tile guiding key 9.

[0048] The clamping force of the clamping tile 4 is proportional to the driving force of the rotating ring body 2 to ensure the balance of the clamping force. As Figure 3 shown in the force state diagram, according to the force state of the mechanism, it can be known that:

[0049] F1L1sina=F2L2sinb

[0050] Where F1 is the clamping force perpendicular to the tile and pointing to the center of the circle; F2 is the force perpendicular to one side of the guiding groove, used to drive the swing link 3 to rotate. By design, it is ensured that the angle a = b, so as to ensure that the clamping force of the clamping tile 4 is proportional to the driving force of the rotating ring body 2.

[0051] The above are only alternative embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present utility model under the inventive concept of the present utility model, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims

1. A transfer device for a positive ring tire forming machine, characterized in that, Comprising: A fixed ring body (1), serving as the support foundation of the overall structure; A rotating ring body (2), installed on the fixed ring body (1) and capable of axial rotation around the center of the fixed ring body (1); A plurality of swing link rods (3), evenly distributed around the rotating ring body (2). One end of the swing link rod (3) is connected to the rotating ring body (2) through a swing link rod driving roller (7) and a guide groove, and the other end supports a clamping tile (4) through a tile support shaft (8); Clamping tiles (4), the number corresponding to that of the swing link rods (3), are connected to the swing link rods (3) through tile support shafts (8). The clamping tiles (4) expand and contract along the radial direction of the rotating ring body (2) to clamp tire components; A driving air cylinder or electric cylinder (5), serving as a power source. Its cylinder rod or electric cylinder rod is directly or indirectly connected to the rotating ring body (2) and is used to drive the rotation of the rotating ring body (2), thereby driving the movement of the swing link rods (3) and the clamping tiles (4); A swing link fixing shaft (6), fixed to the fixed ring body (1), providing a rotation fulcrum for the swing link rods (3); A tile guide flat key (9), one end of which is fixedly arranged on the support structure of the clamping tile (4), and the other end passes through the guide track of adjacent tiles, used to ensure the stability and directionality of the clamping tile (4) during the radial expansion and contraction process.

2. The transfer device of the positive ring tire forming machine according to claim 1, wherein: The clamping tiles (4) adopt an odd-number structure to form an asymmetric structure, used to reduce the drooping phenomenon of tire components during the clamping process.

3. The transfer device of the positive ring tire forming machine according to claim 1, characterized in that: The guide flat key is provided with an edge to prevent rotation during the guiding process.

4. The transfer device of the positive ring tire forming machine according to claim 1 or 2, characterized in that: The driving air cylinder or electric cylinder (5) is controlled through a control system to ensure the synchronous movement of each clamping tile (4) to achieve the clamping effect.

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