Expansion mechanism of carcass drum transfer ring

Abstract

The utility model provides an expansion mechanism of a tire body drum transfer ring, which belongs to the technical field of tire processing and comprises a rotating ring. The number of the first pulling blocks is multiple, and the multiple first pulling blocks are fixedly connected to the upper end of the rotating ring; the multiple pulling rods are arranged, and the multiple pulling rods are rotationally connected to the circumferential surfaces of the multiple first pulling blocks correspondingly; the number of the second pulling blocks is multiple, and the multiple second pulling blocks are rotationally connected into the multiple pulling rods correspondingly; the number of the external expansion plates is multiple, and the multiple external expansion plates are fixedly connected to one side ends of the multiple second pulling blocks correspondingly; the fixing ring is arranged at one side end of each external expansion plate; the multiple axis grooves are formed, and the multiple axis grooves are formed in the side ends of the multiple external expansion plates correspondingly; and the multiple axis rods are arranged, no gap exists in the external expansion ring, and the external expansion ring is a circular external expansion groove, so that the external expansion tire body cannot deform.

Description

Technical Field

[0001] This utility model belongs to the field of tire processing technology, and specifically relates to an expansion mechanism for a tire body drum transmission ring. Background Technology

[0002] Currently, heavy-duty trucks are gradually replacing parallel dual tires with all-steel wide-base tires. The main characteristics of all-steel wide-base tires are low profile, tubeless design, and wide rims. Compared to ordinary tires, wide-base tires can effectively reduce rolling resistance by more than 10%, and their weight can be reduced by more than 50 kg compared to parallel dual tires (thus achieving fuel savings). At the same time, all-steel wide-base tires can shorten the overall tire width by more than 145 mm, saving 20% ​​of rubber, reducing the manufacturing cost for manufacturers and the maintenance cost for vehicle owners. Therefore, all-steel wide-base tires are a key production target for tire manufacturers. Consequently, fully automated, high-efficiency all-steel wide-base tire production lines have emerged. These lines require a tire carcass drum transfer ring to transfer the tire carcass. Conventional tire carcass drum transfer ring drive mechanisms are complex, requiring multiple cylinders or hydraulic cylinders for driving, which is not only inefficient but also has poor synchronization.

[0003] Utility model patent with authorization announcement number "CN210477878U" discloses an expansion mechanism for a transfer ring, comprising a fixed ring fixed to a base plate, a sliding ring slidably embedded on the inner edge of the fixed ring, the sliding ring being driven to rotate by a driving mechanism, causing the sliding ring to perform circumferential motion relative to the fixed ring, and multiple oblique moving guide grooves evenly arranged on the surface of the sliding ring, multiple slider seats fixedly mounted on the fixed ring, sliders slidably mounted on the slider seats, and pulley shafts fixedly connected to the sliders, with pulleys fitted on the pulley shafts embedded in the oblique moving guide grooves. This utility model discloses an expansion mechanism for a transfer ring, which has a simple structure and high consistency of action.

[0004] The aforementioned novel expansion mechanism for the tire drum transmission ring has a simple structure and high consistency of action. However, when expanding the tire body, the tire body is stretched through multiple fixed points, and uneven force on the tire body surface can cause deformation of the tire body. Utility Model Content

[0005] The purpose of this invention is to provide an expansion mechanism for a tire body drum transmission ring, which aims to solve the problem in the prior art where multiple fixed points stretch the tire body, and uneven stress on the tire body surface causes tire deformation.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An expansion mechanism for a tire drum transmission ring includes:

[0008] Rotate in a circle;

[0009] The first pulling block is provided in multiple ways, and all of the first pulling blocks are fixedly connected to the upper end of the rotating ring;

[0010] A pull rod, wherein multiple pull rods are provided, and the multiple pull rods are respectively rotatably connected to the circumferential surface of multiple first pull blocks;

[0011] The second pull block is provided in multiple ways, and the multiple second pull blocks are rotatably connected to multiple pull rods respectively;

[0012] The outer expansion plate is provided in multiple ways, and the multiple outer expansion plates are respectively fixedly connected to one side end of multiple second pulling blocks;

[0013] A fixing ring is provided on one side end of a plurality of outwardly expanding plates;

[0014] A central groove is provided, and the central groove is respectively opened on one side end of a plurality of outward expansion plates;

[0015] A central shaft is provided, and multiple central shafts are fixedly connected to the lower end of a fixed ring and rotate in multiple central shaft grooves respectively.

[0016] In a preferred embodiment of this utility model, a sliding ring is fixedly connected to the circumferential surface of the rotating ring, a sliding groove is provided inside the sliding ring, and a slider is slidably connected inside the sliding groove.

[0017] In a preferred embodiment of this utility model, two uprights are fixedly connected to one side of the fixing ring, and a base is fixedly connected to the lower end of the uprights.

[0018] In a preferred embodiment of this utility model, a telescopic cylinder is fixedly connected to the upper end of the base, and the telescopic end of the telescopic cylinder is fixed to the slider.

[0019] As a preferred embodiment of this utility model, when the telescopic end of the telescopic cylinder retracts to its lowest point, the multiple expansion plates expand to their maximum distance.

[0020] In a preferred embodiment of this utility model, the arcs of the plurality of outer expansion plates are closely fitted together.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. In this solution, different types of tires can be fixed by this device. When clamping, multiple expansion plates are rotated and pressed together, so that the expansion ring is evenly stressed on the tire body. The expansion ring formed by the expansion plates is a circular expansion groove without gaps, so that the expanded tire body will not deform.

[0023] 2. In this solution, the output end of the telescopic cylinder is equipped with an output rod and a slider that is fixed. When the telescopic cylinder retracts, the slider drives the rotating ring to rotate and expands multiple expansion plates. The sliding groove provides vertical movement space for the slider. Attached Figure Description

[0024] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0025] Figure 1 This is a three-dimensional structural view of the present invention;

[0026] Figure 2 This is a partial structural diagram of the present invention;

[0027] Figure 3 This is an exploded view of the first structure in this utility model;

[0028] Figure 4 This is an exploded view of the second structure in this utility model.

[0029] In the diagram: 1. Rotating ring; 2. First pulling block; 3. Pulling rod; 4. Second pulling block; 5. Outer expansion plate; 6. Shaft groove; 7. Shaft rod; 8. Fixed ring; 9. Sliding ring; 10. Sliding groove; 11. Slider; 12. Base; 13. Upright rod; 14. Telescopic cylinder. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not 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 effort are within the protection scope of the present utility model.

[0031] Example

[0032] Please see Figures 1-4 The present invention provides the following technical solution:

[0033] An expansion mechanism for a tire drum transmission ring includes:

[0034] Rotating ring 1;

[0035] The first pull block 2, there are multiple first pull blocks 2, and multiple first pull blocks 2 are fixedly connected to the upper end of the rotating ring 1;

[0036] Pull rod 3, multiple pull rods 3 are provided, and multiple pull rods 3 are rotatably connected to the circumferential surface of multiple first pull blocks 2 respectively;

[0037] The second pull block 4 is provided in multiple ways, and the multiple second pull blocks 4 are rotatably connected to the multiple pull rods 3 respectively;

[0038] The expansion plate 5 is provided in multiple ways, and the multiple expansion plates 5 are respectively fixedly connected to one side end of multiple second pulling blocks 4;

[0039] A fixing ring 8 is provided on one side of multiple outer expansion plates 5;

[0040] A central groove 6 is provided, and multiple central grooves 6 are respectively opened on one side end of multiple outer expansion plates 5;

[0041] There are multiple shaft rods 7, each fixedly connected to the lower end of the fixing ring 8 and rotating in multiple shaft grooves 6.

[0042] In a specific embodiment of this utility model, the fixing ring 8 is fixed and cannot rotate. The shaft rod 7 is inserted into the shaft groove 6 opened at the upper end of the outer expansion plate 5. The outer expansion plate 5 is fixed by the fixing ring 8, causing it to rotate around the shaft groove 6. The other end of the outer expansion plate 5 is connected to the rotating ring 1 through the second pulling block 4, the pulling rod 3, and the first pulling block 2. The rotating ring 1 is located outside the fixing ring 8. When the rotating ring 1 rotates, it pulls multiple pulling rods 3 to rotate, and pulls one side of the outer expansion plate 5 through the pulling rods 3, causing multiple outer expansion plates 5 to rotate around the shaft rod 7, thus closing multiple outer expansion plates. The expansion plate 5 rotates outward, thereby expanding a circular groove in the middle of the multiple expansion plates 5. When the circular groove expands to the same size as the tire body, the tire body drum is fixed to the multiple expansion plates 5. Then, the rotating ring 1 rotates to make the multiple expansion plates 5 continue to expand, thereby achieving the effect of tire body expansion. This device can expand or shrink the fixing groove in the middle of the multiple expansion plates 5 by rotating the rotating ring 1, so that the device can fix tires of different models. When clamped, the multiple expansion plates 5 are pressed tightly against each other by rotation, so that there are no gaps in the outer expansion ring. The circular outer expansion groove prevents the expanded tire body from deforming.

[0043] Please refer to the details. Figures 1-4 A sliding ring 9 is fixedly connected to the circumferential surface of the rotating ring 1. A sliding groove 10 is provided inside the sliding ring 9, and a slider 11 is slidably connected inside the sliding groove 10.

[0044] In this embodiment: the sliding ring 9 is fixed to the circumferential surface on the upper right side of the rotating ring 1, and the slider 11 slides in the sliding groove 10 opened in the sliding ring 9. The sliding groove 10 limits the sliding of the slider 11. The slider 11 is connected to the driving component. When the driving component drives the slider 11 to move downward, the slider 11 drives the rotating ring 1 to rotate and expands the multiple outer expansion plates 5. The sliding groove 10 provides vertical movement space for the slider 11.

[0045] Please refer to the details. Figures 1-4 Two uprights 13 are fixedly connected to one side of the fixed ring 8, and a base 12 is fixedly connected to the lower end of the uprights 13.

[0046] In this embodiment: the base 12 is connected to the fixed ring 8 through the upright 13 to support the fixed ring 8 and fix the position of the fixed ring 8, so that the side end of the outer expansion plate 5 connected to the fixed ring 8 remains stationary, while the second pulling block 4 connected to the pulling rod 3 rotates, thereby pulling the outer expansion plate 5 to slide to one side and expanding the circular groove formed by the multiple outer expansion plates 5 outward.

[0047] Please refer to the details. Figures 1-4 A telescopic cylinder 14 is fixedly connected to the upper end of the base 12, and the telescopic end of the telescopic cylinder 14 is fixed to the slider 11.

[0048] In this embodiment: the output end of the telescopic cylinder 14 is provided with an output rod and a slider 11 fixed. When the telescopic cylinder 14 retracts, the rotating ring 1 is pulled and rotated by the slider 11, thereby expanding the multiple expansion plates 5 outward to stretch and expand the tire body fixed in the middle of the expansion plates 5 outward.

[0049] Please refer to the details. Figures 1-4 When the telescopic cylinder 14 retracts to its lowest point, the multiple expansion plates 5 expand to their maximum distance.

[0050] In this embodiment: when the output end of the telescopic cylinder 14 retracts to the minimum distance, the multiple expansion plates 5 expand to the maximum distance. At this time, the processed tire body is taken out, and the output end of the telescopic cylinder 14 is pushed back to retract the multiple expansion plates 5 to the minimum position.

[0051] Please refer to the details. Figures 1-4 The arcs of multiple outward expansion plates 5 fit together tightly.

[0052] In this embodiment, when the multiple expansion plates 5 expand outward, they slide at each other's arc-shaped ends, so that there are no gaps in the expansion clamping groove, which further improves the stability of the tire body expansion and prevents the tire body from deforming.

[0053] It should be noted that the telescopic cylinder 14 used in this device is existing technology and will not be described in detail here.

[0054] The working principle and usage of this utility model are as follows: The fixing ring 8 is fixed and cannot rotate. The shaft rod 7 is inserted into the shaft groove 6 opened at the upper end of the outer expansion plate 5. The fixing ring 8 fixes the outer expansion plate 5, causing it to rotate around the shaft groove 6. The other end of the outer expansion plate 5 is connected to the rotating ring 1 via the second pulling block 4, the pulling rod 3, and the first pulling block 2. The rotating ring 1 is located outside the fixing ring 8. When the rotating ring 1 rotates, it pulls multiple pulling rods 3 to rotate, and through the pulling rods 3, it pulls one side of the outer expansion plate 5, causing multiple outer expansion plates 5 to rotate around the shaft rod 7, thus closing multiple... The outer expansion plate 5 rotates outward, thereby expanding a circular groove in the middle of the multiple outer expansion plates 5. When the circular groove expands to the same size as the tire body, the tire body drum is fixed to the multiple outer expansion plates 5. Then, the rotating ring 1 rotates to make the multiple outer expansion plates 5 continue to expand, thereby achieving the effect of tire body expansion. This device can expand or shrink the fixing groove in the middle of the multiple outer expansion plates 5 by rotating the rotating ring 1, so that the device can fix tires of different models. When clamped, the multiple outer expansion plates 5 are pressed tightly against each other by rotation, so that there are no gaps in the outer expansion ring. It is a circular outer expansion groove, so that the expanded tire body will not deform.

[0055] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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. An expanding mechanism for a carcass drum transfer ring, characterized by: Include: Rotary ring (1); First pull block (2), the first pull block (2) is provided with multiple, multiple first pull block (2) is fixedly connected to the upper end of rotary ring (1); Pull rod (3), the pull rod (3) is provided with multiple, multiple pull rod (3) is respectively rotatably connected to the circumferential surface of multiple first pull block (2); Second pull block (4), the second pull block (4) is provided with multiple, multiple second pull block (4) is respectively rotatably connected in multiple pull rod (3); Outer expansion plate (5), the outer expansion plate (5) is provided with multiple, multiple outer expansion plate (5) is respectively fixedly connected to one side end of multiple second pull block (4); Fixed ring (8), the fixed ring (8) is arranged in one side end of multiple outer expansion plate (5); Axle slot (6), the axle slot (6) is provided with multiple, multiple axle slot (6) is respectively arranged in one side end of multiple outer expansion plate (5); Axle rod (7), the axle rod (7) is provided with multiple, multiple axle rod (7) is fixedly connected to the lower end of fixed ring (8) and is respectively rotatable in multiple axle slot (6).

2. An expanding mechanism for a tire bead transfer ring according to claim 1, wherein: The circumferential surface of the rotary ring (1) is fixedly connected with the sliding ring (9), the sliding groove (10) is arranged in the sliding ring (9), and the sliding block (11) is slidably connected in the sliding groove (10).

3. An expanding mechanism for a tire bead transfer ring as defined in claim 2, wherein: One side end of the fixed ring (8) is fixedly connected with two vertical rods (13), and the lower end of the vertical rod (13) is fixedly connected with the base (12).

4. An expanding mechanism for a carcass drum transfer ring according to claim 3, wherein: The upper end of the base (12) is fixedly connected with the telescopic cylinder (14), and the telescopic end of the telescopic cylinder (14) is fixed with the sliding block (11).

5. An expanding mechanism for a carcass drum transfer ring according to claim 4, wherein: When the telescopic end of the telescopic cylinder (14) is contracted to the lowermost end, multiple outer expansion plates (5) are expanded to the maximum distance.

6. An expanding mechanism for a carcass drum transfer ring according to claim 5, wherein: The arcs of multiple outer expansion plates (5) are closely fitted with each other.

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