Lifting mechanism for tire detection line

Abstract

The utility model discloses a lifting mechanism for a tire detection line. The two lifting mechanism mounting supports are arranged at intervals and are arranged on the front side and the rear side of the tire conveying line in the conveying direction correspondingly, and the two ends of each lifting mechanism mounting support are each provided with a lifting rod assembly. The two ends of each lifting rod assembly are movably connected with the two lifting mechanism mounting supports through a driven supporting assembly and a driving supporting assembly respectively; an air cylinder is installed on the lifting mechanism installation support, an output rod of the air cylinder is connected with a connecting shaft, and the two ends of the connecting shaft are connected with the lifting rod assembly through an active supporting assembly respectively. The lifting device is reliable in structure, cost-saving, free of jamming risk, low in failure rate, low in cost, convenient to maintain, small in occupied space, capable of being used in a narrow space, convenient to use, capable of being matched with the sizes of different stations by changing the length of the lifting rod, and free to adjust.

Description

Technical Field

[0001] This utility model relates to a mechanical structure for testing at an automobile tire testing station, and more particularly to a lifting mechanism for a tire testing line. Background Technology

[0002] Within a tire factory, the tire production line is arranged with numerous workstations according to processing requirements, such as centering, marking, and sorting stations. These workstations need to position and move tires to complete their respective functions on schedule. However, because tires are made of rubber, there is significant friction between them and the conveyor belt or metal, hindering the normal operation of each workstation. Therefore, a lifting mechanism is needed to detach the tire from the conveyor surface to ensure it can be moved or positioned precisely. Existing lifting mechanisms typically use multiple unidirectional rollers, Mecanum wheels, or omnidirectional ball bearings to form a lifting plate, which is then lifted by cylinders or other lifting mechanisms, ensuring the tire only contacts the rollers before movement or positioning.

[0003] The existing technology has the following drawbacks:

[0004] 1) Gaps exist between the rolling elements of components such as one-way rollers, Mecanum wheels, or omnidirectional ball bearings, which can easily allow tire hairs to fall in and cause the tire to jam.

[0005] 2) Existing rolling element replacement and maintenance are complex;

[0006] 3) Existing rolling elements are expensive;

[0007] 4) Achieving parallel lifting often requires multiple cylinders to operate simultaneously, which is costly;

[0008] 5) The lifting plate has a complex structure and cannot be used in narrow gaps in the line. Utility Model Content

[0009] In order to solve the problems existing in the background technology, the present invention provides a lifting mechanism for tire inspection lines, aiming to develop a lifting mechanism with low failure rate, convenient maintenance, low manufacturing cost, and applicable to narrow gaps in the line, so as to solve the current technical problems.

[0010] The technical solution adopted in this utility model is:

[0011] This utility model includes a lifting mechanism mounting bracket, a cylinder, a connecting shaft, a driven support assembly, an active support assembly, and two lifting rod assemblies. The two lifting mechanism mounting brackets are arranged at intervals and are respectively located on the front and rear sides of the tire conveyor line along the conveying direction. Each of the two lifting mechanism mounting brackets is provided with a lifting rod assembly at both ends. One end of each lifting rod assembly is movably connected to a lifting mechanism mounting bracket on one side through a driven support assembly, and the other end of each lifting rod assembly is movably connected to a lifting mechanism mounting bracket on the other side through an active support assembly. A cylinder is mounted on the lifting mechanism mounting bracket, and the cylinder output rod is connected to the connecting shaft. The two ends of the connecting shaft are respectively connected to the active support assembly and the lifting rod assembly.

[0012] The active support assembly includes a long connecting rod and an active hinge support. One end of the active hinge support is fixed to the end of the lifting mechanism mounting support, the other end of the active hinge support is hinged to the middle of the long connecting rod, one end of the long connecting rod is hinged to the end of the connecting shaft, and the other end of the long connecting rod is hinged to the bottom of the lifting rod assembly.

[0013] Two active support components are respectively arranged at both ends of the lifting mechanism mounting support, and the two ends of the connecting shaft are respectively hinged to one end of the long connecting rod of the two active support components.

[0014] The driven support assembly includes a driven hinge support and a short connecting rod. The driven hinge support is fixed to the end of the lifting mechanism mounting support. One end of the driven hinge support and the short connecting rod are hinged together, and the other end of the short connecting rod is hinged to the bottom of the lifting rod assembly.

[0015] Each of the lifting rod assemblies is horizontally arranged and includes a lifting rod, two lifting brackets and a compression spring. The two lifting brackets are spaced apart. The two ends of the lifting rod are respectively clamped to the top of the two lifting brackets, and the bottom of the two lifting brackets are respectively used to connect to the two lifting mechanism mounting supports. Each lifting rod is horizontally arranged and is fitted with a compression spring. The two ends of the compression spring are respectively connected to the two lifting brackets at both ends of the lifting rod.

[0016] The bottom of the lifting bracket on one side of the lifting rod assembly is hinged to the driven hinge support on the lifting mechanism mounting bracket via a short connecting rod, and the bottom of the lifting bracket on the other side of the lifting rod assembly is hinged to one end of the long connecting rod of the active support assembly.

[0017] Both lifting rod assemblies are located inside the two conveyor belts on both sides of the tire conveyor line.

[0018] The beneficial effects of this utility model are:

[0019] This utility model adopts the principle of parallelogram mechanism and uses a single cylinder (4) as the driving force. The structure is reliable and saves costs.

[0020] This invention uses a compression spring to replace multiple rolling elements, eliminating the risk of jamming, resulting in a low failure rate, low cost, and easy maintenance.

[0021] This utility model uses a lifting rod to lift the tire, which occupies little space and can be used in confined spaces. It is easy to use and can be adapted to different work positions by changing the length of the lifting rod, allowing for free adjustment. Attached Figure Description

[0022] Figure 1 A schematic diagram of a tire inspection line equipped with the lifting mechanism of this utility model;

[0023] Figure 2 This is one of the structural schematic diagrams of the lifting mechanism of this utility model;

[0024] Figure 3 This is one of the structural schematic diagrams of the lifting mechanism of this utility model;

[0025] Figure 4 This is a partially enlarged view of the lifting mechanism of this utility model;

[0026] Figure 5 This is a schematic diagram of the lifting operation of a tire inspection line equipped with the lifting mechanism of this utility model.

[0027] In the figure: tire conveyor line (1), lifting mechanism mounting bracket (2), cylinder mounting bracket (3), cylinder (4), active hinge bracket (5), connecting shaft (6), lifting bracket (7), driven hinge bracket (8), long connecting rod (9), short connecting rod (10), compression spring (11), lifting rod (12). Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] like Figure 1 As shown, the whole includes a tire conveyor line 1 and a lifting mechanism, which is installed inside the tire conveyor line 1.

[0030] like Figure 2 and Figure 3 As shown, the lifting mechanism includes a lifting mechanism mounting support 2, a cylinder mounting base 3, a cylinder 4, a connecting shaft 6, a driven support assembly, an active support assembly, and two lifting rod assemblies;

[0031] Two lifting mechanism mounting supports 2 are arranged at intervals and respectively on the front and rear sides of the tire conveyor line 1 along the conveying direction. A lifting rod assembly is provided between each end of the two lifting mechanism mounting supports 2, for a total of two lifting rod assemblies. One end of each lifting rod assembly is movably connected to one of the lifting mechanism mounting supports 2 on one side through its respective driven support assembly, and the other end of each lifting rod assembly is movably connected to one of the lifting mechanism mounting supports 2 on the other side through its respective active support assembly. A cylinder 4 is mounted on the lifting mechanism mounting support 2 through a cylinder mounting seat 3. The output rod of the cylinder 4 is connected to a connecting shaft 6 perpendicular to the tire conveyor line 1 along the conveying direction. The two ends of the connecting shaft 6 are connected to the active support assembly and the lifting rod assembly respectively.

[0032] The active support assembly includes a long connecting rod 9 and an active hinge support 5. One end of the active hinge support 5 is fixed to the end of one of the two ends of a lifting mechanism mounting support 2. The other end of the active hinge support 5 is hinged to the middle of the long connecting rod 9. One end of the long connecting rod 9 is hinged to one end of the connecting shaft 6. The other end of the long connecting rod 9 is hinged to the bottom of the lifting bracket 7 of the lifting rod assembly.

[0033] Two active support components are respectively arranged at both ends of the lifting mechanism mounting support 2, and the two ends of the connecting shaft 6 are respectively hinged to one end of the long connecting rod 9 of the two active support components.

[0034] like Figure 4 As shown, the driven support assembly includes a driven hinge support 8 and a short connecting rod 10. The driven hinge support 8 is fixed to one end of one end of another lifting mechanism mounting support 2. The driven hinge support 8 and the short connecting rod 10 are hinged at one end, and the other end of the short connecting rod 10 is hinged to the bottom of the lifting bracket 7 of the lifting rod assembly.

[0035] Each of the lifting rod assemblies is horizontally arranged and includes a lifting rod 12, two lifting brackets 7, and a compression spring 11. The two lifting brackets 7 are spaced apart and are respectively arranged on the front and rear sides of the tire conveyor line 1 along the conveying direction. The two ends of the lifting rod 12 are respectively clamped to the top of the two lifting brackets 7, so that the end of the lifting rod 12 can be fixed to the top of the lifting bracket 7. The bottom of the two lifting brackets 7 is respectively used to connect the two lifting mechanism mounting supports 2. Each lifting rod 12 is horizontally arranged and is fitted with a compression spring 11. The two ends of the compression spring 11 are respectively connected to the two lifting brackets 7 at both ends of the lifting rod 12.

[0036] One of the lifting brackets 7 on one side of the lifting rod assembly is hinged at its bottom via a short connecting rod 10 and a driven hinge support 8 on the lifting mechanism mounting support 2. The bottom of the other lifting bracket 7 on the other side of the lifting rod assembly is hinged to one end of the long connecting rod 9 of the active support assembly, and the other end of the long connecting rod 9 is hinged to the connecting shaft 6.

[0037] Both lifting rod assemblies are located inside the two conveyor belts on both sides of the tire conveyor line 1.

[0038] There are two lifting mechanism mounting supports 2, which are distributed and installed on the frames at both ends of the tire conveyor line 1 as the foundation of the lifting mechanism. One end is the active end and the other end is the driven end.

[0039] The active hinge support 5 consists of two parts, which are distributed and installed at both ends of the lifting mechanism mounting support 2 at the active end. The cylinder mounting seat 3 is installed in the middle of the lifting mechanism mounting support 2. The cylinder 4 is connected to the cylinder mounting seat 3 by a hinge and can swing freely.

[0040] The driven hinge support 8 is installed at both ends of the lifting mechanism mounting support 2 on the driven side. There are four lifting brackets 7 in total, distributed at the four corners of the mechanism. The two lifting brackets 7 on the driven side are hinged to the driven hinge support 8 through short connecting rods 10 and can rotate freely. The two lifting brackets 7 on the active side are hinged to the active hinge support 5 through long connecting rods 9 and can rotate freely.

[0041] The other end of the long connecting rod 9 is fixedly extended and connected via a connecting shaft 6, which is connected in the middle to the piston rod of the cylinder 4. The driven end and the driving end of the lifting bracket 7 are connected in pairs by lifting rods 12. The compression spring 11 is fitted onto the lifting rod 12, and its two ends are constrained by the lifting bracket 7 to ensure that the compression spring 11 can slide on the lifting rod 12 without falling off.

[0042] like Figure 5 As shown, taking the installation of this mechanism at the centering position as an example, the working action of the lifting mechanism of the tire inspection line is as follows:

[0043] S1. Move the tire from tire conveyor line 1 to the operating range of the lifting mechanism, that is, directly above the lifting mechanism;

[0044] S2, cylinder 4 works, pulling the long connecting rod 9 to rotate, and at the same time, according to the principle of parallelogram mechanism, it drives the short connecting rod 10 to rotate, which in turn drives the lifting bracket 7, compression spring 11 and tire to rise.

[0045] Specifically, when cylinder 4 retracts, the piston rod of cylinder 4 drives the connecting shaft 6 to move closer to cylinder 4, which in turn pulls the long connecting rod 9 to rotate, thereby driving the lifting bracket 7 of the lifting mechanism mounting support 2 at the active end to lift.

[0046] Since the two lifting rod assemblies form a hinged parallelogram between the two lifting mechanism mounting supports 2, according to the parallelogram principle, the short connecting rod 10 at the driven end will also rotate, eventually driving the lifting rod 12 of the two lifting rod assemblies to move horizontally upward, and after moving upward to contact the tire, lift the tire.

[0047] As a result, the lifting rods 12 of the two lifting rod assemblies are lifted in parallel, the tire is lifted and removed from the surface of the conveyor line 1, and only comes into contact with the compression spring 11.

[0048] S3, Perform the motion of moving the tires in a constant-center position.

[0049] At this point, the tire is in contact with the compression spring 11 and detached from the tire delivery line 1. Since the tire is only in contact with the compression spring 11, and the compression spring 11 is in contact with the lifting rod 12, and the compression spring 11 has compressible characteristics and a circular cross-section has rotatable characteristics, the tire can translate on the compression spring 11 with two degrees of freedom. At the same time, the very large frictional force between rubber and metal can be transformed into a smaller compression force of the compression spring 11 and a small metal-to-metal frictional force between the compression spring 11 and the lifting rod 12.

[0050] Meanwhile, because the compression spring 11 repeatedly slides on the lifting rod 12 during its operation, it can scrape off tire hair and rubber debris adhering to the mechanism. The mechanism will not be jammed by tire hair or other debris.

[0051] S4. After the movement is completed, the piston rod of cylinder 4 extends, driving the driving long connecting rod 9 and the driven short connecting rod 10 to rotate in opposite directions.

[0052] S5. The lifting rods 12 of the two lifting rod assemblies move downward in parallel, so that the tire re-contacts the surface of the tire delivery line 1, completing the action and forming a closed loop process.

[0053] The above specific embodiments are used to explain and illustrate the present utility model, and are not intended to limit the present utility model. Any modifications and changes made to the present utility model within the spirit and scope of the claims shall fall within the protection scope of the present utility model.

[0054] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A lifting mechanism for tire inspection lines, characterized in that: The system includes a lifting mechanism mounting bracket (2), a cylinder (4), a connecting shaft (6), a driven support assembly, an active support assembly, and two lifting rod assemblies. The two lifting mechanism mounting brackets (2) are arranged at intervals and are respectively arranged on the front and rear sides of the tire conveyor line (1) along the conveying direction. Each of the two lifting mechanism mounting brackets (2) has a lifting rod assembly at both ends. One end of each lifting rod assembly is movably connected to one of the lifting mechanism mounting brackets (2) on one side through the driven support assembly, and the other end of each lifting rod assembly is movably connected to one of the lifting mechanism mounting brackets (2) on the other side through the active support assembly. A cylinder (4) is mounted on the lifting mechanism mounting bracket (2). The output rod of the cylinder (4) is connected to the connecting shaft (6). The two ends of the connecting shaft (6) are respectively connected through the active support assembly and the lifting rod assembly.

2. The lifting mechanism for a tire inspection line according to claim 1, characterized in that: The active support assembly includes a long connecting rod (9) and an active hinge support (5). One end of the active hinge support (5) is fixed to the end of the lifting mechanism mounting support (2). The other end of the active hinge support (5) is hinged to the middle of the long connecting rod (9). One end of the long connecting rod (9) is hinged to the end of the connecting shaft (6). The other end of the long connecting rod (9) is hinged to the bottom of the lifting rod assembly.

3. The lifting mechanism for a tire inspection line according to claim 2, characterized in that: Two active support components are respectively arranged at both ends of the lifting mechanism mounting support (2), and the two ends of the connecting shaft (6) are respectively hinged to one end of the long connecting rod (9) of the two active support components.

4. The lifting mechanism for a tire inspection line according to claim 1, characterized in that: The driven support assembly includes a driven hinge support (8) and a short connecting rod (10). The driven hinge support (8) is fixed to the end of the lifting mechanism mounting support (2). The driven hinge support (8) and the short connecting rod (10) are hinged at one end, and the other end of the short connecting rod (10) is hinged to the bottom of the lifting rod assembly.

5. A lifting mechanism for a tire inspection line according to claim 1, characterized in that: Each of the lifting rod assemblies is horizontally arranged and includes a lifting rod (12), two lifting brackets (7) and a compression spring (11). The two lifting brackets (7) are arranged at intervals. The two ends of the lifting rod (12) are respectively clamped to the top of the two lifting brackets (7). The bottom of the two lifting brackets (7) is used to connect the two lifting mechanism mounting supports (2). Each lifting rod (12) is horizontally arranged and is fitted with a compression spring (11). The two ends of the compression spring (11) are respectively connected to the two lifting brackets (7) at both ends of the lifting rod (12).

6. A lifting mechanism for a tire inspection line according to claim 5, characterized in that: The bottom of the lifting bracket (7) on one side of the lifting rod assembly is hinged to the driven hinge support (8) on the lifting mechanism mounting support (2) via a short connecting rod (10). The bottom of the lifting bracket (7) on the other side of the lifting rod assembly is hinged to one end of the long connecting rod (9) of the active support assembly.

7. The lifting mechanism for a tire inspection line according to claim 1, characterized in that: Both of the lifting rod assemblies are located inside the two conveyor belts on both sides of the tire conveyor line (1).

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