Molding drum counter- wrapping lever and molding drum

Abstract

The utility model provides a kind of forming drum counter wrapping rod and forming drum.Forming drum counter wrapping rod includes rod body, rod body is set on forming drum, rod body has with the first end of forming drum connection and with the second end of rubber material cooperation;Compression roller, compression roller is rotatably connected in the second end of rod body;Support part, support part is set in the second end of rod body and protrudes to compression roller, and it is used to support rubber material, support part is compared to the central axis of compression roller away from forming drum.This application solves the problem that counter wrapping rod will be pleated after pressing rubber material in the prior art, thereby leading to waste tire.

Description

Technical Field

[0001] This utility model relates to the field of tire manufacturing and processing, and more specifically, to a forming drum reverse wrapping rod and a forming drum. Background Technology

[0002] The mechanical forming drum is the core component of the one-step forming machine. The main process flow is as follows: material is applied to the small-diameter flat drum; the middle drum is supported and the rubber material is wrapped around it; the steel ring is placed on the drum and the locking block locks the steel ring; the side drum pads retract, the reverse wrapping rod is raised, and the rubber material is wrapped around it in reverse; the reverse wrapping rod falls back, the side drum pads rise, the cord fabric and tire body are applied, and the sidewall rubber is applied; the side drum pads and locking blocks descend and retract; the rubber material is wrapped around the side drum in reverse; the side drum pads and locking blocks move forward, and the locking block locks the steel ring; the middle drum shrinks and flattens; the tread assembly is placed on the drum, and the tire blank is formed; the locking block and drum bearing shrink, and the tire blank is removed. In the fourth step, during the process of reversing the rubber material, the reversing rod moves forward and rises, coming into contact with the rubber material. If the rubber material to be reversed is relatively soft or thin, the rubber material is not hard enough to withstand its weight. This causes the rubber material to collapse between the reversing rod and the drum, resulting in creases after the reversing rod presses the rubber material, thus leading to a wasted tire. Utility Model Content

[0003] The main purpose of this utility model is to provide a molding drum reverse wrapping rod and molding drum to solve the problem that wrinkles will occur after the reverse wrapping rod presses the rubber material in the prior art, resulting in waste tires.

[0004] To achieve the above objectives, according to one aspect of the present invention, a forming drum reverse wrapping rod is provided, comprising a rod body disposed on the forming drum, the rod body having a first end connected to the forming drum and a second end cooperating with the rubber material; a pressure roller rotatably connected to the second end of the rod body; and a support portion disposed at the second end of the rod body and protruding from the pressure roller, and used to support the rubber material, the support portion being farther away from the central axis of the forming drum than the pressure roller.

[0005] Furthermore, the support includes a connecting frame connected to the second end of the rod; and a support wheel disposed at the end of the connecting frame away from the rod and rotatably connected to the connecting frame; the rotation direction of the support wheel is the same as the rotation direction of the pressure roller.

[0006] Furthermore, the connecting frame is rotatably connected to the rod body, and the support also includes an adjustment component for adjusting the rotation of the connecting frame.

[0007] Furthermore, the adjustment assembly includes a movable rod, the first end of which is hinged to the connecting frame, and the second end of which is movably connected to the rod body; and a locking member, which is disposed on the rod body and has a locking position for fixing the movable rod and an unlocking position for unlocking the movable rod.

[0008] Furthermore, the locking component includes a locking bolt, and the movable rod has an elongated hole through which the locking bolt moves and is threadedly connected to the rod body.

[0009] Furthermore, the support wheel includes a frame body connected to a connecting frame; and a wheel body rotatably connected to the end of the frame body away from the connected frame.

[0010] Furthermore, the frame and the connecting frame can be movably connected, and the wheels can be moved closer to or away from the pole.

[0011] Furthermore, the number of wheels is at least two, with wheels provided on both sides of the frame.

[0012] Furthermore, the number of pressure rollers is at least two, with pressure rollers provided on both sides of the rod, and a receiving gap is formed between the pressure rollers on both sides, with the support part located within the receiving gap.

[0013] According to another aspect of the present invention, a forming drum is provided, including the above-described forming drum reverse wrapping rod.

[0014] By applying the technical solution of this utility model, the following technical effects are achieved:

[0015] By setting a support at the second end of the inverted wrapping rod, i.e. the gap between the inverted wrapping rod and the drum body, the gap between the inverted wrapping rod and the drum body is filled, so that the rubber material laid on the inverted wrapping rod can be laid flat, thereby reducing the occurrence of rubber material wrinkling and improving the quality of the finished tire. Attached Figure Description

[0016] 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:

[0017] Figure 1 This paper shows a schematic diagram of the overall structure of the molded drum reverse wrapping rod of this application;

[0018] Figure 2 An exploded view of the molded drum reverse wrapping rod of this application is shown.

[0019] The above figures include the following reference numerals:

[0020] 10. Rod body; 20. Pressure roller; 30. Support part; 31. Connecting frame; 32. Support wheel; 321. Frame body; 322. Wheel body; 40. Adjustment component; 41. Movable rod; 42. Locking component. Detailed Implementation

[0021] 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.

[0022] 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.

[0023] 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.

[0024] To address the problem of creases forming after the rubber material is pressed by the inverted wrapping rod in the existing technology, resulting in waste tires, this utility model provides a molding drum inverted wrapping rod and molding drum.

[0025] See Figure 1 and Figure 2 The forming drum reverse wrapping rod includes a rod body 10, a pressure roller 20, and a support part 30. The rod body 10 is disposed on the forming drum and has a first end connected to the forming drum and a second end that cooperates with the rubber material. The pressure roller 20 is rotatably connected to the second end of the rod body 10. The support part 30 is disposed at the second end of the rod body 10 and protrudes from the pressure roller 20, and is used to support the rubber material. The support part 30 is farther away from the central axis of the forming drum than the pressure roller 20.

[0026] The support part 30 is a structure that protrudes from the second end of the pressure roller 20. Due to the structural limitations of the reverse wrapping rod, the second end of the reverse wrapping rod needs to be lower than the reverse wrapping rod, that is, the second end of the reverse wrapping rod is closer to the central axis of the forming drum. This results in a gap between the second end of the reverse wrapping rod and the forming drum. The rubber material needs to be placed on the reverse wrapping drum for the reverse wrapping forming process. When the rubber material to be reverse wrapped is relatively soft or the thickness of the rubber material is relatively thin, the hardness of the rubber material is insufficient to resist the weight of this part of the rubber material. This will cause the rubber material to collapse between the reverse wrapping rod and the drum body, resulting in wrinkles after the reverse wrapping rod presses the rubber material.

[0027] By providing a support portion 30 at the second end of the reinforcing rod, i.e., in the gap between the reinforcing rod and the drum body, the gap between the reinforcing rod and the drum body is filled, allowing the rubber material laid on the reinforcing rod to be laid flat, thereby reducing the occurrence of rubber wrinkling and improving the quality of the finished tire. The support portion 30 can be a protrusion or a pulley rotatably connected to the second end.

[0028] In this application, the support part 30 includes a connecting frame 31 and a support wheel 32. The connecting frame 31 is connected to the second end of the rod 10, and the support wheel 32 is disposed at the end of the connecting frame 31 away from the rod 10 and is rotatably connected to the connecting frame 31. The rotation direction of the support wheel 32 is the same as the rotation direction of the pressure roller 20.

[0029] In this application, the number of pressure rollers 20 is at least two, and pressure rollers 20 are provided on both sides of the rod body 10, and a receiving gap is formed between the pressure rollers 20 on both sides, with the support part 30 located within the receiving gap.

[0030] Specifically, by configuring the support part 30 as a support wheel 32, friction between the material and the support part 30 can be reduced, thereby facilitating the reverse wrapping of the adhesive. Since the support wheel 32 cannot exist independently, a connecting frame 31 is provided at the second end of the rod 10 to connect the support wheel 32, thus facilitating its installation. In one embodiment, there are two pressure rollers 20, which are rotatably disposed on both sides of the rod 10, while the support part 30 is disposed between the gaps of the two pressure rollers 20, thus facilitating the installation of the support part 30.

[0031] In this application, the connecting frame 31 is rotatably connected to the rod 10, and the support part 30 also includes an adjustment component 40 for adjusting the rotation of the connecting frame 31.

[0032] Specifically, different rubber materials have different softness, so the support part 30 needs to support different rubber materials at different positions. By adjusting the rotation of the support part 30 through the adjustment component 40, the support part 30 can support different positions of the rubber material, achieving optimal support for the rubber material and further reducing the occurrence of wrinkles in the rubber material.

[0033] Meanwhile, since the distance between the reverse wrapping rod and the drum body is different for different molding drums, the support part 30 can be adjusted to the optimal support position by adjusting the rotating support part 30, that is, the middle of the distance between the second end of the reverse wrapping rod and the drum body, so as to achieve the best support for the rubber material and reduce the occurrence of wrinkles in the rubber material.

[0034] In this application, the adjustment assembly 40 includes a movable rod 41 and a locking member 42. The first end of the movable rod 41 is hinged to the connecting frame 31, and the second end of the movable rod 41 is movably connected to the rod body 10. The locking member 42 is disposed on the rod body 10 and has a locking position for fixing the movable rod 41 and an unlocking position for unlocking the movable rod 41.

[0035] Specifically, since the movable rod 41 is hinged to the connecting frame 31, when the position of the movable rod 41 changes, it will also cause the position of the connecting frame 31 to change, thereby realizing the rotational connection between the connecting frame 31 and the rod body 10. Therefore, the rotation of the connecting frame 31 is controlled by the movable rod 41. When the position of the movable rod 41 changes, it needs to be fixed. By setting a locking member 42 to fix the movable rod 41, it can be ensured that the movable rod 41 remains stable after movement, thereby ensuring the stability of the connecting frame 31 during operation. The locking element 42 can be a pin, which is inserted into the socket to fix the movable rod 41. The locked position and the unlocked position correspond to the positions of the two pin holes that mate with each other. Alternatively, the locking element 42 can be a bolt that is threadedly connected to the connecting bracket 31. The movable rod 41 is fixed by tightening the bolt. In the locked position, the head of the bolt is in close contact with the movable rod 41, making the movable rod 41 unable to move. In the unlocked position, there is a gap between the head of the bolt and the movable rod 41, which does not affect the movement of the movable rod 41.

[0036] In this application, the locking member 42 includes a locking bolt, the movable rod 41 has an elongated hole, the locking bolt moves through the elongated hole, and the locking bolt is threadedly connected to the rod body 10.

[0037] Specifically, when the locking bolt is in the locked position, the head of the bolt is in close contact with the movable rod 41, preventing the movable rod 41 from moving. When the locking bolt is in the unlocked position, there is a gap between the head of the bolt and the movable rod 41, which does not affect the movement of the movable rod 41. When the movable rod 41 is in the unlocked position and needs to be moved, the elongated hole on the movable rod 41 does not affect the relative movement between the movable rod 41 and the locking bolt. By controlling the distance between the head of the locking screw and the movable rod 41, the locking position of the locking element 42 can be easily changed, facilitating the adjustment of the movable rod 41.

[0038] In this application, the support wheel 32 includes a frame 321 and a wheel 322. The frame 321 is connected to the connecting frame 31, and the wheel 322 is rotatably connected to the end of the frame 321 away from the connected frame 31. The frame 321 and the connecting frame 31 are movably connected, and the wheel 322 is moved closer to or away from the rod 10.

[0039] Specifically, the distance between the frame 321 of the support wheel 32 and the rod 10 can be adjusted, which can change the support position of the wheel 322 on the rubber material. Since the depth of the gap formed between different reverse wrapping rods and drums is different, the support height of the support part 30 will also change accordingly. Therefore, by adjusting the distance between the support wheel 32 and the frame 321, the support part 30 can always maintain the optimal support height, achieve the best support for the rubber material, and thus reduce the occurrence of wrinkles in the rubber material.

[0040] In one embodiment, the connecting frame 31 has a slot, and the frame body 321 has a protrusion at one end near the rod body 10. The protrusion can move within the slot of the connecting frame 31, and the distance between the support wheel 32 and the rod body 10 can be adjusted through the sliding connection between the protrusion and the connecting frame 31. Furthermore, the connecting frame 31 is also provided with a locking structure to fix the protrusion of the movable rod 41. Preferably, the locking structure is a bolt, and the protrusion is fixed by tightening the bolt.

[0041] In this application, the number of wheels 322 is at least two, and wheels 322 are provided on both sides of the frame 321. By providing multiple wheels 322, the width of the support part 30 can be increased, thereby providing better support for the support part 30.

[0042] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0043] 1. By setting a support part 30 at the second end of the reverse wrapping rod, that is, in the gap between the reverse wrapping rod and the drum body, the gap between the reverse wrapping rod and the drum body is filled, so that the rubber material laid on the reverse wrapping rod can be laid flat, thereby reducing the occurrence of rubber material wrinkling and improving the quality of the finished tire.

[0044] 2. Different rubber materials have different softness, so the support part 30 needs to support different rubber materials at different positions. By adjusting the rotation of the support part 30 through the adjustment component 40, the support part 30 can support different positions of the rubber material, thereby achieving the best support for the rubber material and further reducing the occurrence of wrinkles in the rubber material.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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 molded drum reverse wrapping rod, characterized in that, include: A rod (10) is disposed on a molding drum, the rod (10) having a first end connected to the molding drum and a second end that engages with the adhesive material; Pressure roller (20), which is rotatably connected to the second end of the rod (10); A support portion (30) is disposed at the second end of the rod (10) and protrudes from the pressure roller (20) and is used to support the rubber material. The support portion (30) is farther away from the central axis of the forming drum than the pressure roller (20).

2. The forming drum reverse wrapping rod according to claim 1, characterized in that, The support portion (30) includes: A connecting frame (31) is connected to the second end of the rod (10); A support wheel (32) is disposed at one end of the connecting frame (31) away from the rod (10) and is rotatably connected to the connecting frame (31); the rotation direction of the support wheel (32) is the same as the rotation direction of the pressure roller (20).

3. The forming drum reverse wrapping rod according to claim 2, characterized in that, The connecting frame (31) is rotatably connected to the rod (10), and the support (30) further includes an adjustment component (40) for adjusting the rotation of the connecting frame (31).

4. The forming drum reverse wrapping rod according to claim 3, characterized in that, The adjustment component (40) includes: Movable rod (41), the first end of the movable rod (41) is hinged to the connecting frame (31), and the second end of the movable rod (41) is movably connected to the rod body (10); A locking member (42) is disposed on the rod body (10) and has a locking position for fixing the movable rod (41) and an unlocking position for unlocking the movable rod (41).

5. The forming drum reverse wrapping rod according to claim 4, characterized in that, The locking member (42) includes a locking bolt, the movable rod (41) has an elongated hole, the locking bolt moves through the elongated hole, and the locking bolt is threadedly connected to the rod body (10).

6. The forming drum reverse wrapping rod according to claim 2, characterized in that, The support wheel (32) includes: A frame (321) is connected to the connecting frame (31); A wheel (322) is rotatably connected to one end of the frame (321) away from the connected frame (31).

7. The forming drum reverse wrapping rod according to claim 6, characterized in that, The frame (321) is movably connected to the connecting frame (31) and drives the wheel (322) to move closer to or away from the rod (10).

8. The forming drum reverse wrapping rod according to claim 6, characterized in that, The number of wheels (322) is at least two, and the wheels (322) are provided on both sides of the frame (321).

9. The forming drum reverse wrapping rod according to claim 1, characterized in that, The number of pressure rollers (20) is at least two, and the pressure rollers (20) are provided on both sides of the rod (10), and a receiving gap is formed between the pressure rollers (20) on both sides, and the support part (30) is located in the receiving gap.

10. A molded drum, characterized in that, Includes the molding drum reverse wrap bar according to any one of claims 1-9.

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