Tire blank forward wrapping and rolling device and tire forming machine

Abstract

The utility model provides a tire blank forward wrapping and rolling device and a tire forming machine. The tire blank forward wrapping and rolling device comprises a base, a rolling mechanism and a rolling mechanism, at least one part of the sliding assembly is movably arranged relative to the base; and the pressing roller assembly is movably connected with the sliding assembly and is movably arranged relative to the base through the sliding assembly, the pressing roller assembly comprises a pressing roller used for rolling the sizing material, the peripheral side of the pressing roller is provided with a plurality of tooth-shaped structures, and the tooth-shaped structures extrude the sizing material and form uniform wrinkles. The utility model solves the problem in the prior art that the uniformity of sizing material forward wrapping rolling wrinkles is poorer.

Description

Technical Field

[0001] The utility model relates to the technical field of tire processing, and in particular, to a device for roll-pressing the positive wrapping of a tire embryo and a tire forming machine. Background Art

[0002] An important process in the tire forming process is the forming of the tire embryo. In this process, specific rubber compounds need to be adhered to a specific drum, and after steps such as roll-pressing, a tire embryo is formed. In some tire embryo forming processes, the rubber compound adhered to the drum needs to be adhered inward along the edge of the drum. This process is called the positive wrapping of the rubber compound. After the positive wrapping, many wrinkles will appear due to the decrease in diameter. Uneven wrinkles will affect the quality of the tire embryo and also the quality of the final tire produced. Currently, to make the positive wrapping of the rubber compound have uniform wrinkles, the manual roll-pressing method is mostly used. The above-mentioned manual roll-pressing method is slow, inefficient, and wastes manpower. Moreover, since the final roll-pressing effect depends on humans, the degree of uniformity is unstable. Summary of the Utility Model

[0003] The main purpose of the present utility model is to provide a device for roll-pressing the positive wrapping of a tire embryo and a tire forming machine to solve the problem of poor uniformity of the roll-pressed wrinkles of the rubber compound in the prior art.

[0004] To achieve the above purpose, according to one aspect of the present utility model, a device for roll-pressing the positive wrapping of a tire embryo is provided, including: a base; a sliding component, at least a part of the sliding component is movably arranged relative to the base; a roll-pressing component, the roll-pressing component is movably connected to the sliding component and is movably arranged relative to the base through the sliding component. The roll-pressing component includes a roll for roll-pressing the rubber compound, and a plurality of tooth-shaped structures are arranged on the outer peripheral side of the roll. The tooth-shaped structures extrude the rubber compound and form uniform wrinkles.

[0005] Further, each tooth-shaped structure is evenly distributed 360 degrees along the outer peripheral side of the roll.

[0006] Further, the roll is located on the plane of the tangent in the circumferential side of the drum at a predetermined position and moves within the plane of the tangent at the predetermined position.

[0007] Further, the predetermined position is the bottom end of the drum.

[0008] Further, the roll-pressing component further includes a swing arm. One end of the swing arm is rotatably connected to the sliding component, and the other end of the swing arm rotatably arranges the roll. When the swing arm rotates relative to the sliding component, it drives the roll to approach or move away from the axial side of the drum.

[0009] Further, there are a plurality of roll-pressing components, and roll-pressing components are arranged on both sides of the drum axially opposite to each other. The swing arms of the roll-pressing components on both sides drive the rolls to move in the direction of approaching or moving away from each other.

[0010] Further, the pressing roller assembly further includes a telescopic arm, the length of the telescopic arm is adjustable, one end of the telescopic arm is connected to the sliding assembly, and a pressing roller is provided at the other end of the telescopic arm. When the telescopic arm moves telescopically, it drives the pressing roller to approach or move away from the axial side of the drum.

[0011] Further, the sliding assembly includes: a first sliding part, the first sliding part is connected to the base, and the first sliding part can move relative to the base along a first transverse direction; a second sliding part, the second sliding part is connected to the first sliding part, and the second sliding part can extend relative to the first sliding part along a second transverse direction, and an included angle is formed between the first direction and the second direction.

[0012] Further, the first direction is along the axis of the drum, and the second direction is perpendicular to the first direction.

[0013] According to another aspect of the present invention, a tire forming machine is provided, which includes the above-mentioned green tire positive wrapping roller pressing device.

[0014] Applying the technical solution of the present invention, by providing a pressing roller with a tooth-shaped structure, when the pressing roller performs roller pressing, by using the shape characteristics of the tooth-shaped structure, the tip and bottom end of the tooth-shaped structure can be respectively attached to the rubber compound when the pressing roller roller presses to form wrinkles, so that the wrinkles formed by the rubber compound can be uniform, thereby realizing the effect of the rubber compound being positively wrapped and roller pressed to form uniform wrinkles, realizing the uniformity of the roller pressed wrinkles, and ensuring the processing quality. Moreover, the whole process can be automatically carried out by the device, without manual roller pressing and manual intervention, thereby realizing the effect of automatic roller pressing, which not only reduces manpower and material resources, but also ensures the uniformity of roller pressing. At the same time, the setting of the sliding assembly enables the pressing roller to adjust its own position as needed. The sliding assembly can be used to adjust the position of the pressing roller before roller pressing, so that the pressing roller can better adapt to the drum and ensure the roller pressing effect. Description of the Drawings

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

[0016] Figure 1 The structural schematic diagram of the green tire positive wrapping roller pressing device of the present invention is shown;

[0017] Figure 2 The structural schematic diagram of the pressing roller is shown;

[0018] Figure 3 Shows Figure 1 The structural schematic diagram of the green tire positive wrapping roller pressing device in the adjustment step in;

[0019] Figure 4 ShowsFigure 3 Bottom view;

[0020] Figure 5 shows Figure 1 the structural schematic diagram of the green tire front wrapping roller pressing device in when the pressing roller is in the roller pressing position;

[0021] Figure 6 shows Figure 5 the bottom view;

[0022] Figure 7 shows Figure 1 the structural schematic diagram of the green tire front wrapping roller pressing device in when the pressing roller is in the avoiding position.

[0023] Among them, the above-mentioned drawings include the following reference numerals:

[0024] 10. Base; 20. Sliding assembly; 21. First sliding part; 22. Second sliding part; 30. Pressing roller assembly; 31. Pressing roller; 311. Tooth-shaped structure; 32. Swing arm; 40. Drum. Detailed implementation manners

[0025] It should be noted that, without conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The following will describe the present invention in detail with reference to the drawings and in combination with the embodiments.

[0026] It should be pointed out that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0027] In the present invention, unless otherwise stated, the orientation words such as "upper, lower, top, bottom" are usually in the directions shown in the drawings, or in the vertical, perpendicular or gravitational directions of the components themselves; similarly, for the convenience of understanding and description, "inner, outer" refer to the inner and outer of the contours of the components themselves, but the above orientation words do not limit the present invention.

[0028] In order to solve the problem that the uniformity of the wrinkles in the rubber material front wrapping roller pressing in the prior art is poor, the present invention provides a green tire front wrapping roller pressing device and a tire building machine. Among them, the tire building machine has the following green tire front wrapping roller pressing device.

[0029] As Figures 1 to 7A tire embryo front wrapping rolling device shown in the figure includes a base 10, a sliding component 20, and a rolling roller component 30. At least a part of the sliding component 20 is movably arranged relative to the base 10; the rolling roller component 30 is movably connected to the sliding component 20 and is movably arranged relative to the base 10 through the sliding component 20. The rolling roller component 30 includes a rolling roller 31 for rolling rubber material. The outer peripheral side of the rolling roller 31 has a plurality of tooth-shaped structures 311, and the tooth-shaped structures 311 extrude the rubber material to form uniform folds.

[0030] In this embodiment, by providing the rolling roller 31 with the tooth-shaped structure 311, when the rolling roller 31 performs rolling, by using the shape characteristics of the tooth-shaped structure 311, the tip and bottom end of the tooth-shaped structure 311 can be respectively attached to the rubber material when the rolling roller 31 rolls to generate folds, so that the folds formed by the rubber material can be uniform, thereby realizing the effect of forming uniform folds by front wrapping rolling of the rubber material, realizing the uniformity of the rolling folds, and ensuring the processing quality. Moreover, the whole process can be automatically carried out by the device, without manual rolling and manual intervention, thus realizing the effect of automatic rolling, which not only reduces manpower and material resources, but also ensures the uniformity of rolling. At the same time, the setting of the sliding component 20 enables the rolling roller 31 to adjust its own position as needed. The sliding component 20 can be used to adjust the position of the rolling roller 31 before rolling, so that the rolling roller 31 can better adapt to the drum 40 and ensure the rolling effect.

[0031] As Figure 2 shown, in this embodiment, each tooth-shaped structure 311 is evenly distributed along the 360-degree outer peripheral side of the rolling roller 31. That is to say, the entire circumferential side of the rolling roller 31 is provided with tooth-shaped structures 311, so that the rolling roller 31 forms a toothed roller. In this way, when rolling, the rolling roller 31 does not need to be adjusted at all, and continuous rolling can be carried out when it is attached to the rubber material for rolling. When the drum 40 rotates one circle, the rolling of one circle of rubber material is naturally completed, thereby improving the processing efficiency.

[0032] As Figure 3 shown, in this embodiment, the rolling roller 31 is located on the plane of the tangent direction of a predetermined position on the circumferential side of the drum 40 and moves within the plane of the tangent direction of the predetermined position. That is to say, the rolling roller 31 is not on the symmetric plane passing through the center line of the drum 40, but on the tangential surface at a certain position on the circumferential side. In this way, when the rolling roller 31 approaches the drum 40 driven by the sliding component 20, the rolling roller 31 can cooperate with the axial side edge, that is, the axial end face of the drum 40 to realize rolling.

[0033] Preferably, the predetermined position in this embodiment is the bottom of the drum 40. The drum 40 is generally placed in a horizontal position, that is, the axial direction of the drum 40 extends horizontally, and the bottom of the drum 40 is the position where the height of the peripheral side surface is the lowest. The tangent plane of this position is the horizontal plane. In other words, the tangent plane of the predetermined position is actually the horizontal plane where the bottom of the drum 40 is located, and the pressure roller 31 moves in the horizontal plane to approach and move away from the drum 40, thereby realizing the adjustment of the position of the pressure roller 31 and the switching of the two states of the pressure roller 31 pressing the rubber material. That is, when the pressure roller 31 needs to adjust the position of the drum 40, the pressure roller 31 moves away from the drum 40 along the horizontal plane under the drive of the sliding assembly 20, so that there is a large distance between the pressure roller 31 and the drum 40, thereby realizing the adjustment of the various positions of the pressure roller 31. After the adjustment is completed, when rolling is required, the sliding assembly 20 drives the pressure roller 31 to approach the drum 40, and the pressure roller 31 can roll the rubber material to achieve uniform rolling.

[0034] Of course, the predetermined position may be other positions besides the bottom, and may be adjusted accordingly as needed.

[0035] like Figure 5 As shown, in the present embodiment, the pressure roller assembly 30 further includes a swing arm 32, one end of the swing arm 32 is rotatably connected to the sliding assembly 20, and the other end of the swing arm 32 is rotatably provided with a pressure roller 31, and when the swing arm 32 rotates relative to the sliding assembly 20, it drives the pressure roller 31 to approach or move away from the axial side of the drum 40. Since the aforementioned sliding assembly 20 is used to adjust the position of the pressure roller 31 before rolling, in order to enable the pressure roller 31 to move between a rolling position that fits the rubber material and an avoidance position that is a certain distance away from the rubber material during rolling, the present embodiment provides a swing arm 32, and since the swing arm 32 and the sliding assembly 20 are rotatable, the swing arm 32 can rotate relative to the sliding assembly 20, thereby driving the pressure roller 31 on the swing arm 32 to approach or move away from the end face of the drum 40 along an arc trajectory, thereby realizing the switching of the pressure roller 31 between the rolling position and the avoidance position. That is to say, when the pressure roller 31 is required to roll the rubber material, as shown in FIG. Figure 6 As shown, the swing arm 32 rotates and drives the pressing roller 31 to move toward the end surface of the drum 40, so that the pressing roller 31 is in contact with the rubber material to achieve rolling out uniform wrinkles. When one rolling is completed, as shown in FIG. Figure 7 As shown, the swing arm 32 rotates in the opposite direction, driving the pressure roller 31 away from the end surface of the drum 40, so that the pressure roller 31 is separated from the rubber material, and a new rubber material can be replaced at this time, so as to facilitate the next rolling. When the drum 40 changes specifications, the pressure roller assembly 30 can be driven by the sliding assembly 20 to be away from the drum 40 as a whole, so as to facilitate the replacement of the drum 40.

[0036] In this embodiment, there are multiple pressure roller assemblies 30, and pressure roller assemblies 30 are provided on both sides of the drum 40 that are axially opposite to each other. As mentioned above, when in use, the pressure roller assemblies 30 on both sides move synchronously, thereby ensuring that the pressure rollers 31 on both sides can simultaneously move toward or away from the end surface of the drum 40, thereby achieving synchronous rolling of the rubber material at both ends of the drum 40 and improving the rolling efficiency. In this embodiment, two pressure roller assemblies 30 are provided as an example. Naturally, two swing arms 32 and pressure rollers 31 are also provided, and the swing arms 32 and pressure rollers 31 are both symmetrically arranged at both ends of the drum 40 in the transverse direction, so that the two pressure rollers 31 can roll the rubber material at both ends respectively.

[0037] In order to ensure the smoothness of the movement of the swing arm 32 and avoid interference with the drum 40, the swing arm 32 of this embodiment is arranged in an arc shape, and the distance between the swing arms 32 on both sides gradually increases in the direction close to the drum 40. Of course, the shape of the swing arm 32 can also be adjusted as needed, and is not limited to the above-mentioned manner of this embodiment.

[0038] Of course, in addition to the above-mentioned form of the swing arm 32 connecting the pressure roller 31, the pressure roller assembly 30 can also adopt the form of a telescopic arm and a pressure roller 31, that is, the telescopic arm is used instead of the swing arm 32, and the length of the telescopic arm itself can be adjusted telescopically. One end of the telescopic arm is connected to the sliding assembly 20, and the pressure roller 31 is set at the other end of the telescopic arm, so that the telescopic arm can drive the pressure roller 31 to move towards and away from the drum 40 by extending and retracting it, thereby realizing the movement of the pressure roller 31 between the rolling position and the avoidance position.

[0039] In this embodiment, the sliding assembly 20 includes a first sliding portion 21 and a second sliding portion 22. The first sliding portion 21 is connected to the base 10. The first sliding portion 21 and the base 10 can be connected by means of a slide rail or the like, so that the first sliding portion 21 can move along a first lateral direction relative to the base 10; the second sliding portion 22 is connected to the first sliding portion 21. The second sliding portion 22 and the first sliding portion 21 can also be connected by means of a slide rail or the like, so that the second sliding portion 22 can extend along a second lateral direction relative to the first sliding portion 21. Both the first direction and the second direction are lateral and form an angle between them. In this way, when performing the adjustment step, as Figure 3 and Figure 4 As shown, the first sliding portion 21 drives the second sliding portion 22 and the pressure roller assembly 30 to move away from the drum 40 as a whole, and the second sliding portion 22 drives the pressure roller assembly 30 to adjust the lateral position, so that the sliding assembly 20 can drive the pressure roller assembly 30 to move on the horizontal plane where the bottom end of the drum 40 is located, so that the pressure roller assembly 30 can adjust the width position relative to the drum 40 before rolling, so as to achieve the adaptation between the pressure roller 31 and the drum 40. When rolling, as Figures 5 to 7As shown, the first sliding part 21 drives the second sliding part 22 and the roller pressing assembly 30 as a whole to approach the drum 40, so that the rotation of the swing arm 32 can achieve the roller pressing cooperation between the roller 31 and the drum 40.

[0040] Of course, more sliding parts can be added to the sliding assembly 20, and the sliding parts can be connected in a sequentially movable manner, so that the adjustment range of the roller 31 is larger. At the same time, the sliding part can also adopt the way of longitudinal movement, so that the roller pressing assembly 30 can not only adjust the lateral position, but also adjust the longitudinal position, further improving the adjustment range of the roller pressing assembly 30. The cooperation between the sliding assembly 20 and the roller pressing assembly 30 enables the roller 31 in this embodiment to perform various actions such as advancing and retreating, separating and combining, stretching, and rotating, and has a wide adaptability to the shaping of tires of different specifications.

[0041] It should be noted that the above-mentioned roller pressing position and the avoiding position are the working positions of the roller 31 during normal operation, and the position where the roller 31 does not work and the drum 40 or the roller 31 can be replaced is the position where the roller 31 is driven by the first sliding part 21 to move away from the drum 40 as a whole.

[0042] Since two roller pressing assemblies 30 are provided in this embodiment, two second sliding parts 22 are also provided. The two second sliding parts 22 are respectively matched with the two roller pressing assemblies 30 to realize the separate movement of the two roller pressing assemblies 30 and adjust the relative position between them. The two second sliding parts 22 can be simultaneously matched with one first sliding part 21.

[0043] The method of embryo positive wrapping and roller pressing of the embryo positive wrapping roller pressing device in this embodiment during use is as follows:

[0044] Before roller pressing, an adjustment step is required. The first sliding part 21 drives the second sliding part 22 and the roller pressing assembly 30 to move away from the drum 40 as a whole. At this time, rubber material can be applied, and the distance between the two rollers 31 on both sides can be adjusted through the second sliding part 22 to adapt to the width of the drum 40, that is, the axial length of the drum 40.

[0045] The first sliding part 21 drives the second sliding part 22 and the roller pressing assembly 30 to move towards the drum 40 as a whole.

[0046] The swing arm 32 rotates, and the swing arm 32 drives the roller 31 to rotate and press on the rubber material on the surface of the drum 40. The roller 31 is close to the edge of the drum 40, and the two roller pressing assemblies 30 on both sides perform this action simultaneously.

[0047] The drum 40 rotates. During the rotation of the drum 40, the pressure roller 31 remains pressed against the rubber compound. The toothed structure 311 on the pressure roller 31 forms uniform folds on the rubber compound at the edge of the drum 40 until the drum 40 rotates one full circle and stops. The swing arm 32 rotates in the reverse direction, driving the pressure roller 31 away from the rubber compound, completing one roller pressing operation. Subsequently, the rubber compound can be replaced to perform roller pressing again.

[0048] It should be noted that the multiple in the above embodiments refers to at least two.

[0049] From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:

[0050] 1. Solved the problem of poor uniformity of the folds in the forward wrapping roller pressing of the rubber compound in the prior art;

[0051] 2. Achieved the effect of forming uniform folds in the forward wrapping roller pressing of the rubber compound, thereby realizing the uniformity of the roller pressing folds and ensuring the processing quality;

[0052] 3. The entire process can be automatically carried out by the device, without manual roller pressing and manual intervention, thus achieving the effect of automatic roller pressing.

[0053] Obviously, the above-described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0054] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0055] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings 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.

[0056] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A tire blank positive rolling device, characterized in that: include: Base (10); a sliding assembly (20), at least a portion of which is movably arranged relative to the base (10); A pressure roller assembly (30), wherein the pressure roller assembly (30) is movably connected to the sliding assembly (20) and is movably arranged relative to the base (10) through the sliding assembly (20), wherein the pressure roller assembly (30) comprises a pressure roller (31) for rolling the rubber material, wherein the outer peripheral side of the pressure roller (31) has a plurality of tooth-shaped structures (311), and the tooth-shaped structures (311) squeeze the rubber material and form uniform wrinkles.

2. The tire green body positive rolling device according to claim 1, characterized in that: The tooth-shaped structures (311) are evenly distributed along the outer circumference of the pressing roller (31) at a range of 360 degrees.

3. The tire green body positive rolling device according to claim 1, characterized in that: The pressure roller (31) is located on a plane where the tangent direction of a predetermined position on the peripheral side of the drum (40) is located, and moves within the plane where the tangent direction of the predetermined position is located.

4. The tire green body positive rolling device according to claim 3, characterized in that: The predetermined position is the bottom end of the drum (40).

5. The tire green body positive rolling device according to claim 1, characterized in that: The pressure roller assembly (30) also includes a swing arm (32), one end of which is rotatably connected to the sliding assembly (20), and the other end of the swing arm (32) is rotatably provided with the pressure roller (31), and when the swing arm (32) rotates relative to the sliding assembly (20), it drives the pressure roller (31) to approach or move away from the axial side of the drum (40).

6. The tire green body positive rolling device according to claim 5, characterized in that: There are multiple pressure roller assemblies (30), and the pressure roller assemblies (30) are arranged on both sides of the drum (40) that are axially opposite to each other. The swing arms (32) of the pressure roller assemblies (30) on both sides drive the pressure rollers (31) to move in directions close to or away from each other.

7. The tire green body positive rolling device according to claim 1, characterized in that: The pressure roller assembly (30) also includes a telescopic arm, the length of which can be adjusted, one end of the telescopic arm is connected to the sliding assembly (20), and the other end of the telescopic arm is provided with the pressure roller (31). When the telescopic arm moves in a telescopic manner, it drives the pressure roller (31) to move closer to or away from the axial side of the drum (40).

8. The tire green body positive rolling device according to claim 1, characterized in that: The sliding assembly (20) comprises: A first sliding portion (21), the first sliding portion (21) being connected to the base (10), and the first sliding portion (21) being movable along a first transverse direction relative to the base (10); A second sliding portion (22), the second sliding portion (22) is connected to the first sliding portion (21), the second sliding portion (22) can extend along a second transverse direction relative to the first sliding portion (21), and an angle is formed between the first direction and the second direction.

9. The tire green body positive rolling device according to claim 8, characterized in that: The first direction is along the axial direction of the drum (40), and the second direction is perpendicular to the first direction.

10. A tire building machine, characterized in that: It comprises the tire blank positive rolling device as described in any one of claims 1 to 9.

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