Clamping and heating device for tire uniformity correction

Abstract

The utility model discloses a tire uniformity correcting, clamping and heating device which comprises an upper tire clamping device installed on the upper portion of a machine frame and a lower tire clamping device installed on the lower portion of the machine frame. And the upper tire clamping device and the lower tire clamping device are symmetrically arranged. Each of the upper tire clamping device and the lower tire clamping device comprises a horizontal sliding device, a longitudinal sliding device and a clamping heating device, the upper tire clamping device and the lower tire clamping device horizontally and longitudinally move into a tire bead respectively, and the specific position of a tire is accurately heated through the clamping heating devices. The upper tire clamping device and the lower tire clamping device each comprise a horizontal sliding support, a longitudinal sliding device and a clamping heating device, the upper tire clamping device and the lower tire clamping device horizontally and longitudinally move into a tire ring correspondingly, and the specific position of a tire is directly heated through the clamping heating devices; and the correction success rate and the production efficiency of the unqualified tire with the uniformity are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tire correction, in particular to a tire uniformity correction clamping and heating device. Background Art

[0002] Tire weight nonuniformity refers to the asymmetry of tire weight distribution across the circumference and width, which can impact vehicle performance and safety. Tire weight nonuniformity is a quality issue that can arise during tire manufacturing, affecting tire balance, driving stability, and ride comfort.

[0003] In existing tire uniformity correction equipment, such as the poor tire uniformity correction device disclosed in patent CN211616697U, when in use, the tire is placed on the outside of the heating shell in a standing position, and the springs and heat sinks will heat the inner ring of the tire, so that the rubber material of the inner ring of the tire to be corrected reaches a fluid state, and the heat sinks and springs of the No. 1 correction module and the No. 2 correction module are tightly fitted with the inner ring of the tire, so that the inner ring of the tire becomes a uniform arc, thereby achieving the effect of tire uniformity correction.

[0004] However, the existing correction devices have the following problems in actual use:

[0005] First, the tire is placed upright on an expansion drum with a heating element for heating. The drum's size is fixed and can only be fine-tuned within a certain range using an adjustment mechanism. Therefore, the tire size it can accommodate is limited. If the tire size exceeds the drum's adjustment range, the device becomes unusable and requires replacing the drum to adjust the tire to a different size. Essentially, one expansion drum for each size is required. This results in a large number of tooling (i.e., expansion drums) and high user costs.

[0006] Second, the springs and heat sinks can only heat the entire inner ring of the tire and then transfer the heat to a specific location. This indirect heating method has low heating efficiency, long correction time, and consumes more energy. In summary, the existing tire uniformity correction device still needs to be improved. Utility Model Content

[0007] In order to solve the above technical problems, the utility model discloses a tire uniformity correction clamping and heating device.

[0008] A tire uniformity correction clamping and heating device comprises an upper clamping device mounted on the upper portion of a frame and a lower clamping device mounted on the lower portion of the frame; the upper and lower clamping devices are symmetrically arranged. Each clamping device includes a horizontal sliding device, a longitudinal sliding device, and a clamping and heating device. The upper and lower clamping devices move horizontally and longitudinally into the tire rim, respectively, and precisely heat specific locations of the tire through the clamping and heating device.

[0009] Preferably, the horizontal sliding device includes horizontal linear guide rails arranged in parallel, a horizontal sliding bracket slidably connected to the horizontal linear guide rails, and a horizontal servo motor driving the horizontal sliding bracket.

[0010] Preferably, the longitudinal sliding device includes a first longitudinal servo motor and a connecting plate. The first longitudinal servo motor is connected to the clamping and heating connecting plate through a first longitudinal electric cylinder, and drives the clamping and heating connecting plate to move up and down.

[0011] Preferably, the clamping and heating device comprises a first heating plate, a second heating plate and a second longitudinal servo motor which are arranged opposite to each other, and the second heating plate is connected to the clamping and heating connecting plate via a clamping and heating connecting rod;

[0012] The first heating plate is located at the bottom of the clamping heating connecting plate. The second longitudinal servo motor is connected to the first heating plate through the second longitudinal electric cylinder, and drives the first heating plate to move up and down. The first heating plate and the second heating plate are clamped inside and outside the tire. The relative movement of the first heating plate and the second heating plate generates a clamping force on a specific position of the tire. At the same time, heating is turned on, so that the first harmonic high point of the tire is directly heated under a certain clamping force.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The upper and lower tire clamping devices move separately or together into the tire rim, where they are clamped inside and outside the tire by the first and second heating plates. The relative movement of the two plates generates a clamping force on a specific location on the tire. Simultaneously, heating is activated, directly heating the specific location within the tire under a certain clamping force. This direct heating method precisely heats specific locations on the tire, saving time and energy while improving the efficiency of tire uniformity correction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0016] Figure 1 This is a schematic diagram of the installation of the tire uniformity correction clamping and heating device;

[0017] Figure 2 This is a top view of the upper tire clamping device structure;

[0018] Figure 3 It is a side view of the upper tire clamping device structure.

[0019] Reference numerals:

[0020] 1. Upper tire clamping device, 2. Lower tire clamping device, 3. Machine frame;

[0021] 101. Horizontal sliding bracket, 102. Electric cylinder base, 103. Horizontal sliding electric cylinder, 104. Horizontal servo motor, 105. Horizontal linear guide rail, 106. Drag chain plate, 107. Drag chain, 108. Longitudinal guide shaft, 109. First longitudinal servo motor, 110. Second longitudinal servo motor, 111. First longitudinal electric cylinder, 112. Second longitudinal electric cylinder, 113. Heating plate guide shaft, 114. Self-lubricating bushing, 115. Aluminum box unit, 116. Longitudinal moving connecting plate, 117. Fixed seat, 118. Clamping heating connecting plate, 119. Clamping heating connecting rod, 120. First heating plate, 121. Second heating plate. DETAILED DESCRIPTION

[0022] The following is a combination of the appended examples of the present invention Figure 1-3 , the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0024] In addition, the terms "first," "second," and so on, used in this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one of these features.

[0025] In the description of the embodiments, unless otherwise specified or limited, the terms "disposed" and "connected" should be understood broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct connections, connections through an intermediary medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention.

[0026] A tire uniformity correction clamping and heating device comprises an upper clamping device 1 mounted on the upper portion of a frame 3 and a lower clamping device 2 mounted on the lower portion of the frame 3; the upper and lower clamping devices are symmetrically arranged. Each clamping device includes a horizontal sliding device, a longitudinal sliding device, and a clamping and heating device. The upper and lower clamping devices move horizontally and longitudinally into the tire rim, respectively, and precisely heat specific locations of the tire through the clamping and heating device.

[0027] The horizontal sliding device includes parallel horizontal linear guides 105, a horizontal sliding bracket 101 slidably connected to the horizontal linear guides, and a horizontal servo motor 104 that drives the horizontal sliding bracket. The horizontal sliding bracket 101 is connected to an electric cylinder base 102, which is connected to the horizontal servo motor 104 via a horizontal sliding electric cylinder 103, thereby driving the horizontal sliding bracket to slide horizontally along the parallel horizontal linear guides.

[0028] The upper tire clamping device and the lower tire clamping device include a drag chain 107 and a drag chain plate 106 for fixing the drag chain. The drag chain is used to protect the electric wires and communication lines to prevent them from being damaged during the movement of the equipment.

[0029] The longitudinal sliding device includes a first longitudinal servo motor 109 and a connecting plate. The first longitudinal servo motor is connected to the clamping and heating connecting plate through a first longitudinal electric cylinder 111 and drives the clamping and heating connecting plate to move up and down.

[0030] The clamping and heating device includes a first heating plate 120, a second heating plate 121 and a second longitudinal servo motor 110 that are arranged opposite to each other. The second heating plate 121 is connected to the clamping and heating connecting plate 118 through a clamping and heating connecting rod 119.

[0031] The first heating plate 120 is located at the bottom of the clamping heating connecting plate. The second longitudinal servo motor 110 is connected to the first heating plate 120 through the second longitudinal electric cylinder 112 and drives the first heating plate to move up and down.

[0032] A heating plate guide shaft 113 is also fixed on the first heating plate, and a self-lubricating sleeve 114 is fixed on the clamping heating connecting plate with a hole. The heating plate guide shaft is sleeved in the self-lubricating sleeve to provide a guide for the up and down movement of the first heating plate.

[0033] The clamping and heating device comprises a first heating plate, a second heating plate and a second longitudinal servo motor which are arranged opposite to each other, and the second heating plate is connected to the clamping and heating connecting plate via a clamping and heating connecting rod;

[0034] The first heating plate and the second heating plate are clamped inside and outside the tire, and the relative movement of the first heating plate and the second heating plate generates a clamping force on a specific position of the tire. At the same time, heating is turned on, so that the first harmonic high point of the tire is directly heated under a certain clamping force.

[0035] In addition, the clamping heating device is integrally fixed by an aluminum box unit 115 and a longitudinally movable connecting plate 116 .

[0036] The tire of the utility model is placed in a horizontal manner, which is convenient for loading and unloading the tire, and a direct heating method is used to accurately heat a specific position of the tire, thereby improving the uniformity of the tire, the success rate of correcting unqualified tires and the production efficiency.

[0037] The tire enters the uniformity correction station horizontally. Before entering the station, the angular position of a specific location on the tire needs to be adjusted and fixed at that specific angular position. The angle adjustment can be done manually or automatically by the equipment. The tire is centered, and a specific location on the tire is precisely heated. The upper and lower tire clamping devices move separately or together into the tire rim, and are clamped inside and outside the tire by the first and second heating plates. The relative movement of the two heating plates generates a clamping force on the specific location of the tire. The heating is turned on at the same time, so that the specific location of the tire is directly heated under a certain clamping force. When heating is complete, the upper and lower tire clamping devices reverse and return to their original positions.

[0038] The above-mentioned driving units may adopt linear driving modules such as pneumatic cylinders, oil cylinders, electric cylinders, etc. commonly used in the art.

[0039] During tire uniformity correction, simultaneous heating is applied to the high point of the tire's first harmonic during the clamping process. This direct heating of the high point under a certain clamping force dramatically increases heat transfer efficiency, significantly improving the efficiency of tire correction. In practice, tire uniformity correction can be completed in 3-5 minutes. This compares to conventional conduction heating, which takes approximately 30 minutes to correct a tire. This eliminates the need to heat the entire tire or the entire tread on a single side, saving time and energy while increasing tire uniformity correction efficiency.

[0040] The tires are placed horizontally, which is convenient for use with the factory's existing loading and unloading robots, simplifying the tire loading and unloading process. The requirements for the placement of the tires are not high, and they can be quickly aligned and positioned through the positioning mechanism in the later stage, thereby improving the tire loading and unloading efficiency.

[0041] The tire uniformity correction clamping and heating device can be used in an automated production line and used in conjunction with other tire loading devices, tire expansion devices, and detection devices.

[0042] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention. In addition, the technical solutions of the various embodiments may be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. If the combination of technical solutions is contradictory or cannot be implemented, it shall be deemed that such combination of technical solutions does not exist and is not within the scope of protection of the present invention.

Claims

1. A tire uniformity correction clamping and heating device, characterized by: It includes an upper tire clamping device installed on the upper part of the frame and a lower tire clamping device installed on the lower part of the frame; the upper tire clamping device and the lower tire clamping device are symmetrically arranged; The upper tire clamping device and the lower tire clamping device both include a horizontal sliding device, a longitudinal sliding device and a clamping and heating device. The upper tire clamping device and the lower tire clamping device move horizontally and longitudinally into the tire ring respectively, and directly heat specific positions of the tire through the clamping and heating device.

2. The tire uniformity correction clamping and heating device according to claim 1, characterized in that: The horizontal sliding device comprises horizontal linear guide rails arranged in parallel, a horizontal sliding bracket slidably connected to the horizontal linear guide rails, and a horizontal servo motor driving the horizontal sliding bracket.

3. The tire uniformity correction clamping and heating device according to claim 1, characterized in that: The longitudinal sliding device includes a first longitudinal servo motor and a connecting plate. The first longitudinal servo motor is connected to the clamping and heating connecting plate through a first longitudinal electric cylinder, and drives the clamping and heating connecting plate to move up and down.

4. The tire uniformity correction clamping and heating device according to claim 3, characterized in that: The clamping and heating device comprises a first heating plate, a second heating plate and a second longitudinal servo motor which are arranged opposite to each other, and the second heating plate is connected to the clamping and heating connecting plate via a clamping and heating connecting rod; The first heating plate is located at the bottom of the clamping heating connecting plate. The second longitudinal servo motor is connected to the first heating plate through the second longitudinal electric cylinder, and drives the first heating plate to move up and down. The first heating plate and the second heating plate are clamped inside and outside the tire. The relative movement of the first heating plate and the second heating plate generates a clamping force on a specific position of the tire. At the same time, heating is turned on, so that the first harmonic high point of the tire is directly heated under a certain clamping force.

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