Novel lower vehicle pressing structure

Abstract

The utility model discloses a novel lower vehicle pressing structure, and relates to the technical field of tire processing and manufacturing, the novel lower vehicle pressing structure comprises a mounting base and a buffer assembly, two sides of the mounting base are rotatably connected with first turning rods respectively, and the side part of the mounting base is additionally provided with a first cylinder for driving the first turning rods to rotate; the buffer assembly comprises a second turning rod which is coaxially and rotatably arranged with the first turning rod, a spring is arranged between the other ends of the first turning rod and the second turning rod, a pressing wheel is arranged at the end part of the other end of the second turning rod, and the second turning rod and the spring are arranged to cope with repeated vibration of the uneven surface of the forming drum to the pressing wheel; the air cylinder has the technical advantages that the buffering effect can be effectively improved after the buffering assembly is additionally arranged, and the service life of the air cylinder is prolonged; by arranging the pressing roller assembly on the lower portion, when each layer of curtain yarn is wound, the pressing roller presses the curtain yarn all the time, the curtain yarn which is just attached to the curtain yarn can be extruded out in time, rolling of the lower pressing wheel is added on the basis, and the maximum exhaust effect can be achieved.

Description

Technical Field

[0001] This application relates to the field of tire processing and manufacturing technology, and in particular to a novel under-pressure vehicle structure. Background Technology

[0002] Tire forming machines are indispensable key equipment in the tire manufacturing process. They precisely assemble semi-finished tire components (such as tread, sidewall, crown, molding compound, and carcass) into a tire carcass according to process requirements, playing a crucial role, especially in the production of radial tires. The working principle of a tire forming machine is similar to that of a precision die-casting machine. First, the tire carcass is constructed on a carcass drum using a layering method. Then, the completed carcass is removed from the drum and mounted onto a forming drum, which expands it to the predetermined size. Finally, belt layers and tread components are added to form a complete tire carcass. Based on their application, tire forming machines can be divided into two main categories: ordinary tire forming machines and radial tire forming machines. A radial tire forming process completed by a single forming machine is called a one-stage forming method; a two-stage forming method involves using a modified ordinary tire forming machine to create the carcass, followed by forming on a radial tire forming machine. Furthermore, tire forming machines are also classified into two-drum, three-drum, and four-drum types based on the number of drums.

[0003] Existing tire forming machines are equipped with a pressure roller structure at the bottom. Because the surface of the forming drum is uneven, the existing pressure roller needs to vibrate repeatedly, and the cylinder is always under pressure. If additional movement is added, it will easily wear the cylinder seals and reduce the cylinder's lifespan. The normal working process is to wrap multiple layers of cord yarn around the forming drum, then use steel wire rings to fix and flip the wrapping, and then use the lower pressure roller to roll it from both the middle and outer sides to squeeze out the air in the cord yarn layers. However, due to the tight fit between each layer of cord yarn and the clamping of steel wire rings on both sides, it is difficult to effectively squeeze out the air inside. Summary of the Invention

[0004] This device provides a novel downward-pressing vehicle structure, the specific implementation of which is as follows:

[0005] A novel downward-pressing vehicle structure includes:

[0006] The mounting base has a first flipping rod rotatably connected to each side of the mounting base, and a first cylinder is installed on the side of the mounting base to drive the first flipping rod to rotate.

[0007] The buffer assembly includes a second flipping rod that is rotatably arranged coaxially with the first flipping rod. A spring is provided between the other ends of the first flipping rod and the second flipping rod. A pressure roller is provided at the other end of the second flipping rod. The second flipping rod and the spring are used to cope with the repeated vibrations generated by the uneven forming drum surface on the pressure roller.

[0008] Based on the above technical solutions, the original pressure roller structure was optimized and upgraded by adding a spring-based buffer assembly. Before the introduction of the buffer assembly, the system mainly relied on the repeated extension and retraction of the cylinder to achieve basic buffering. However, the buffering effect of this method was relatively limited and could cause significant wear to the cylinder, thus affecting its service life. By adding the spring buffer assembly, the buffering performance was significantly improved. The elastic properties of the spring can effectively absorb and disperse impact energy, thereby reducing the direct impact on the cylinder. This not only makes the operation of the entire system more stable but also greatly extends the service life of the cylinder.

[0009] Preferably, the two ends of the spring are connected to the second flipping rod and the first flipping rod respectively through hinge seats, and the spring has a built-in telescopic rod. A pressure adjustment knob for adjusting the preload is provided between the first flipping rod and the hinge seat.

[0010] Preferably, the two second flipping rods are respectively connected to a toothed pressure roller and a flat pressure roller.

[0011] Based on the above technical solution, a pressure adjustment knob is added, allowing users to precisely adjust the initial position of the lower hinge seat by simply turning the knob; as the position of the lower hinge seat is adjusted, the length of the telescopic rod connected to it will also change accordingly, thereby achieving precise control of the preload of the buffer assembly.

[0012] Preferably, it also includes a pressure roller assembly connected to the base, which includes a pair of seats, with a T-shaped rod hinged to the end of each seat, a pressure roller connected between the other ends of the two T-shaped rods, and a second cylinder connected to the T-shaped rod on the seat.

[0013] Preferably, a limiting block is provided at the end of the seat, and a connecting shaft is provided between the ends of the two T-shaped rods, with the connecting shaft rotatably connected to the limiting block.

[0014] Based on the above technical solution, a pressure roller assembly is configured at the bottom of the equipment. The pressure roller assembly always maintains a moderate pressure on the cord fabric, ensuring that the air can be squeezed out quickly and effectively at the moment the cord fabric is bonded, thereby avoiding the generation of air bubbles and gaps and ensuring the tightness and flatness of the winding. The lower pressure roller performs secondary compaction on the bonded cord fabric, which can remove residual air to the maximum extent and ensure that the cord fabric layers are tightly bonded and there are no air bubbles left. This double protection not only significantly improves the quality of cord fabric winding, but also enhances the stability and durability of the overall structure.

[0015] Preferably, it also includes parallel guide rails and lead screws, with a reducer connected to the end of the lead screw; the lead screw has reverse threads on both sides, and two mounting bases are slidably connected to the guide rails, and are respectively threaded to both ends of the lead screw.

[0016] Preferably, the guide rail is connected to a base at both ends, one end of the lead screw passes through the base and is connected to the reducer, and the other end is connected to the encoder on the base.

[0017] Based on the above technical solutions, by setting an encoder, it is possible to accurately sense and monitor the lead screw speed. By utilizing the high resolution and high precision characteristics of the encoder, the rotational speed information of the lead screw can be captured in real time. The reducer, combined with the variable frequency motor as a component of the transmission system, can effectively reduce the output speed of the motor while increasing the torque, ensuring that the lead screw operates in a stable and controllable state.

[0018] Preferably, a lead screw structure is provided vertically between the base and the seat.

[0019] Based on the above technical solutions, by setting a lead screw structure, the lead screw, reducer, base, buffer assembly, pressure roller assembly, toothed pressure roller and flat pressure roller are integrated into a whole and have lifting function, which can realize the adjustment of the contact distance of the external forming drum.

[0020] By setting up a lead screw structure, the coordinated operation of key components such as the lead screw, reducer, base, buffer assembly, pressure roller assembly, toothed pressure roller, and flat pressure roller is realized, giving this assembly a flexible lifting function. This not only enhances the overall integrity and stability of the system, but also gives it the ability to precisely adjust the contact distance with the external forming drum.

[0021] In summary, this application includes the following beneficial technical effects:

[0022] 1. In this utility model, a buffer component consisting of a spring is added to the original pressure roller structure. Before the addition of the spring mechanism, the buffering effect can only be achieved by the repeated extension and retraction of the cylinder itself. After adding the buffer component, the buffering effect can be effectively increased and the service life of the cylinder can be increased.

[0023] 2. This utility model adds a pressure adjustment knob, which adjusts the initial position of the lower hinge seat by turning the pressure adjustment knob, thereby changing the shape of the telescopic rod, and thus adjusting the preload of the buffer component according to the usage requirements;

[0024] 3. By setting the lower pressure roller assembly, the pressure roller keeps pressing the curtain yarn when winding each layer of curtain yarn, which can squeeze out the newly attached curtain yarn in time; on this basis, the rolling of the lower pressure roller can achieve the maximum air exhaust effect.

[0025] 4. This utility model, by setting a lead screw structure, enables the lead screw, reducer, base, buffer assembly, pressure roller assembly, toothed pressure roller and flat pressure roller to form a whole with lifting function, which can realize the adjustment of the contact distance with the external forming drum. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the existing undercarriage structure;

[0027] Figure 2 This is a front view structural diagram of the present invention;

[0028] Figure 3 This is a side view of the structure of this utility model;

[0029] Figure 4 This is a utility model Figure 2 Cross-sectional view of the structure at point AA;

[0030] Figure 5 This is a schematic diagram of the right-side structure of this utility model;

[0031] Figure 6 This is a schematic diagram of the structure of this utility model when it is applied to a molding drum.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Mounting base; 2. First cylinder; 3. First tilting rod; 4. Lead screw; 5. Reducer; 6. Base; 7. Buffer assembly; 8. Pressure roller assembly; 9. Guide rail; 10. Gear roller; 11. Flat roller; 12. Forming drum; 13. Cord fabric; 14. Lead screw; 15. Encoder.

[0034] 701. Second flip lever; 702. Spring; 703. Pressure adjusting knob.

[0035] 801, pressure roller; 802, connecting shaft; 803, T-shaped rod; 804, limiting block; 805, second cylinder; 806, base. Detailed Implementation

[0036] The specific embodiments of this utility model are described below with reference to the accompanying drawings and examples:

[0037] It should be noted that the structures, proportions, sizes, etc. shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0038] Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0039] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0040] This application discloses a novel downward-pressing vehicle structure.

[0041] Example 1

[0042] Reference Figures 1 to 4 This embodiment discloses a novel pressing machine structure, including a mounting base 1, a buffer assembly 7, parallel guide rails 9 and lead screws 14. The mounting base 1 has first flipping rods 3 rotatably connected to both sides. The mounting base 1 has a first cylinder 2 installed on the side to drive the first flipping rods 3 to rotate. The buffer assembly 7 includes a second flipping rod 701 rotatably arranged coaxially with the first flipping rods 3. A spring 702 is provided between the other ends of the first flipping rods 3 and the second flipping rod 701. The other end of the second flipping rod 701 is provided with a pressure roller. The second flipping rod 701 and the spring 702 are used to deal with the repeated vibrations generated by the uneven forming drum surface on the pressure roller. The second flipping rod 701 is connected to a toothed pressure roller 10 and a flat pressure roller 11.

[0043] The two ends of the spring 702 are connected to the second flipping rod 701 and the first flipping rod 3 respectively through the hinge seat, and the spring 702 has a built-in telescopic rod. The first flipping rod 3 is provided with a pressure adjustment knob 703 for adjusting the preload between it and the hinge seat.

[0044] The end of the lead screw 14 is connected to a reducer 5. The two sides of the lead screw 14 are provided with reverse threads. The two mounting bases 1 are slidably connected to the guide rail 9, and are respectively threaded to the two ends of the lead screw 14.

[0045] Example 2

[0046] Reference Figures 4 to 6 Based on the above embodiments, this embodiment also discloses a novel pressing machine structure, which further includes a pressure roller assembly 8 connected to the base 6. The assembly includes a pair of seats 806, with T-shaped rods 803 hinged to the ends of the seats 806. A pressure roller 801 is connected between the other ends of the two T-shaped rods 803. A second cylinder 805 connected to the T-shaped rods 803 is also provided on the seats 806. In this structure, a limiting block 804 is provided at the end of the seats 806, and a connecting shaft 802 is provided between the ends of the two T-shaped rods 803. The connecting shaft 802 is rotatably connected to the limiting block 804. The two T-shaped rods 803, the connecting shaft 802 and the pressure roller 801 form a square frame structure. The toothed pressure roller 10 and the flat pressure roller 11 on either side pass through the square frame structure, realizing the obstacle-avoiding installation of the pressure roller assembly 8.

[0047] The guide rail 9 is connected to the base 806 at both ends. One end of the lead screw 14 passes through the base 806 and is connected to the reducer 5. The other end is connected to the encoder 15 on the base 806. In this structure, the reducer 5 is driven by a variable frequency motor. The encoder 15 can also be an encoder wheel with many round holes on it, which gives signals to the PLC. Its main function is to calculate the speed and rotation angle of the lead screw.

[0048] The specific implementation process is as follows: During the process of the curtain yarn 13 winding onto the forming drum 12 layer by layer, under the drive of the second cylinder 805, the T-shaped rod 803 flips from the outside to the inside with the limiting block 804 as the center, which not only saves the space required for installation, but also realizes the obstacle avoidance action of the T-shaped rod 803 compared with the flat pressure roller 11; During the process of the curtain yarn 13 winding onto the forming drum 12 layer by layer, the pressure roller 801 always abuts against the forming drum 12 to achieve the exhaust effect of the curtain yarn 13.

[0049] Example 3

[0050] Reference Figure 3 Unlike Embodiment 2, this embodiment also discloses a novel pressing machine structure. A lead screw structure is vertically provided between the seat 806 and the base 6. In this structure, the lead screw structure adopts the conventional lifting principle. By adjusting the height of the seat 806 relative to the base 6, the working height of the subsequent toothed pressing roller 10 and flat pressing roller 11 can be realized.

[0051] Many other changes and modifications can be made without departing from the concept and scope of this utility model. It should be understood that this utility model is not limited to the specific embodiments, and the scope of this utility model is defined by the appended claims.

Claims

1. A novel downward-pressing vehicle structure, characterized in that, include: Mounting base (1), with a first flipping rod (3) rotatably connected to each side of the mounting base (1), and a first cylinder (2) for driving the first flipping rod (3) to rotate is installed on the side of the mounting base (1). The buffer assembly (7) includes a second flipping rod (701) that is coaxially rotatably arranged with the first flipping rod (3). A spring (702) is provided between the other ends of the first flipping rod (3) and the second flipping rod (701). A pressure roller is provided at the other end of the second flipping rod (701). The second flipping rod (701) and the spring (702) are provided to cope with the repeated vibrations generated by the uneven forming drum surface on the pressure roller.

2. The novel downward-pressing vehicle structure according to claim 1, characterized in that, The two ends of the spring (702) are connected to the second flipping rod (701) and the first flipping rod (3) respectively through the hinge seat. The spring (702) has a built-in telescopic rod. A pressure adjustment knob (703) for adjusting the preload is provided between the first flipping rod (3) and the hinge seat.

3. The novel downward-pressing vehicle structure according to claim 2, characterized in that, The two second flipping rods (701) are respectively connected to a toothed pressure roller (10) and a flat pressure roller (11).

4. The novel downward-pressing vehicle structure according to claim 1, characterized in that, It also includes parallel guide rails (9) and lead screws (14), with a reducer (5) connected to the end of the lead screws (14). The lead screw (14) has reverse threads on both sides, and the two mounting bases (1) are slidably connected to the guide rail (9), and are respectively threaded to both ends of the lead screw (14).

5. The novel downward-pressing vehicle structure according to claim 4, characterized in that, It also includes a pressure roller assembly (8) attached to the base (6), which includes a pair of seats (806), with a T-shaped rod (803) hinged at one end of each seat (806), a pressure roller (801) connected between the other ends of the two T-shaped rods (803), and a second cylinder (805) attached to the T-shaped rod (803) on each seat (806).

6. The novel downward-pressing vehicle structure according to claim 5, characterized in that, The seat (806) is provided with a limiting block (804) at its end, and a connecting shaft (802) is provided between the ends of the two T-shaped rods (803), and the connecting shaft (802) is rotatably connected to the limiting block (804).

7. A novel downward-pressing vehicle structure according to claim 6, characterized in that, A lead screw structure is provided vertically between the seat (806) and the base (6).

8. A novel downward-pressing vehicle structure according to claim 5, characterized in that, The guide rail (9) is connected to the base (806) at both ends. One end of the lead screw (14) passes through the base (806) and is connected to the reducer (5), while the other end is connected to the encoder (15) on the base (806).

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