Horizontal tire uniformity correction device and correction method thereof

Abstract

The invention discloses a horizontal tire uniformity correction device and a correction method thereof. The horizontal tire uniformity correcting device comprises an upper tire expanding device, a lower tire expanding device, an upper tire clamping device and a lower tire clamping device, wherein the upper tire expanding device and the lower tire expanding device are symmetrically arranged; the upper tire expanding device and the lower tire expanding device move up and down into a horizontally placed tire bead, and the upper edge and the lower edge of the tire bead are supported by the tire expanding supporting device to ensure the concentricity of the upper tire bead and the lower tire bead; 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 a first harmonic high point of a tire is accurately heated through the clamping heating devices. Tyres are placed in a horizontal mode, feeding and discharging of the tyres are facilitated, primary harmonic high points of the tyres are accurately heated in a direct heating mode, and the correction success rate and the production efficiency of the unqualified tyres with the uniformity of the tyres are improved.

Description

Technical Field

[0001] The invention relates to the technical field of tire correction, and in particular to a horizontal tire uniformity correction device and a correction method thereof. Background Art

[0002] Tire weight non-uniformity refers to the asymmetry of tire weight distribution in the circumferential and width directions, which may affect the performance and safety of the vehicle. Tire weight non-uniformity is a quality problem that may occur during the tire manufacturing process, which will affect the tire's balance, driving stability and ride comfort.

[0003] The uniformity of tires is crucial to their performance and service life. If there is non-uniformity in the tire manufacturing process, it may cause abnormal wear, swing, vibration, noise and other problems during driving, and may even cause safety hazards. Therefore, tire uniformity correction is an indispensable process in the tire manufacturing process. It can ensure the uniformity of tires, improve the quality of tires, and provide strong support for the development of the tire manufacturing industry.

[0004] In the existing tire uniformity correction equipment, such as the bad 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 posture, and the springs and heat sinks will heat the inner ring of the tire, so that the inner ring rubber of the tire to be corrected reaches a flow 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.

[0005] However, the existing correction devices have the following problems in actual use: 1. The tire is placed on the expansion drum with a heating part in a vertical position for heating. The size of the expansion drum is fixed and can only be fine-tuned within one end through the adjustment mechanism. Therefore, the tire size that can be adapted is limited. When the tire size exceeds the adjustment range of the expansion drum, the device cannot be used. It is necessary to replace the expansion drum to achieve the correction of tires of other specifications. Basically, one expansion drum of one sub-mouth specification is required. The number of tooling (that is, expansion drums) is large, and the user cost is high.

[0006] Second, the springs and heat sinks can only heat the inner ring of the tire as a whole, and then transfer the heat to the first harmonic high point. This indirect heating method for the first harmonic high point has low heating efficiency, long correction time, and consumes more energy. In summary, the existing tire uniformity correction device still needs to be improved. Summary of the invention

[0007] In order to solve the above technical problems, the present invention discloses a horizontal tire uniformity correction device and a correction method thereof.

[0008] A horizontal tire uniformity correction device comprises a frame, an upper tire expanding device and a lower tire expanding device which are symmetrically arranged, and an upper tire clamping device and a lower tire clamping device which are symmetrically arranged; The upper tire expanding device and the lower tire expanding device both include a tire expanding lifting device and an openable and closable tire expanding supporting device. The upper tire expanding device and the lower tire expanding device move up and down into a horizontally placed tire bead, and the upper and lower edges of the bead are supported by the tire expanding supporting device, so that the centers of the steel rims on both sides of the tire remain concentric. 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 the first harmonic high point of the tire is accurately heated by the clamping and heating device.

[0009] Furthermore, the tire expansion lifting device includes a tire expansion lifting servo motor, a lifting guide rail, and a lifting frame. The tire expansion lifting servo motor is installed at the end of the lifting guide rail. One end of the lifting frame is clamped in the lifting guide rail, and the other end of the lifting frame is connected to the tire expansion support device.

[0010] Furthermore, the tire expansion support device includes a tire expansion support servo motor, a tire expansion guide shaft, a guide plate, and a tire expansion bracket. The tire expansion support servo motor is connected to the tire expansion guide shaft through a tire expansion support electric cylinder. The tire expansion guide shaft is externally slidingly sleeved with a tire expansion guide sleeve. The tire expansion guide sleeve is fixedly connected to the guide plate. The guide plate is slidingly connected to the tire expansion bracket through a linear guide rail.

[0011] Furthermore, at least two linear guide rails are radiated outward from the axis on the guide plate, and a tire expansion bracket is clamped on each linear guide rail.

[0012] Furthermore, there are at least two tire expansion brackets, and the bases of the opposite tire expansion brackets are respectively hinged with hexagonal shafts; A connecting frame is provided at the end of the guide shaft, and the hexagonal shaft is hinged on both sides of the connecting frame respectively; The connecting frame is lifted and lowered, and the tire expansion bracket is driven to slide along the linear guide rail through the hexagonal shaft, so that the tire expansion bracket supports the edge of the tire bead.

[0013] Furthermore, 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.

[0014] Furthermore, 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.

[0015] Furthermore, 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 through 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, and is clamped inside and outside the tire by the first heating plate and the second heating plate. The first heating plate and the second heating plate are relative to each other to generate a clamping force on the first harmonic high point of the tire, and the heating is turned on at the same time, so that the first harmonic high point of the tire is directly heated under a certain clamping force.

[0016] The correction method using the above-mentioned horizontal tire uniformity correction device includes the following steps: (1) Adjust the angle position of the tire's first harmonic high point The tire enters the uniformity correction station in a horizontal manner. Before entering the station, the angle position of the tire's first harmonic high point needs to be adjusted and fixed at a specific angle position; (2) Tire centering The upper tire expansion device and the lower tire expansion device are moved up and down into the horizontally placed tire bead through the tire expansion lifting device. The tire expansion device is used to expand and contract tires of different sizes so that the centers of the steel rims on both sides of the tire remain concentric. At the same time, the spacing of the tire expansion device is controlled to ensure the stability of the tire bead spacing and support the upper and lower edges of the bead. (3) Accurately heat the first harmonic high point of the tire The upper tire clamping device and the lower tire clamping device are moved into the tire ring separately or together, and clamped inside and outside the tire by the first heating plate and the second heating plate. The clamping force on the first harmonic high point of the tire is generated by the relative movement of the two, and the heating is turned on at the same time, so that the first harmonic high point of the tire is directly heated under a certain clamping force; (4) After heating is completed, the upper tire clamping device and the lower tire clamping device move in the opposite direction and return to their original positions; (5) The upper tire expansion device and the lower tire expansion device move in opposite directions to loosen the tire.

[0017] Before the tire uniformity correction, the high point of the first harmonic is accurately positioned and marked.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. The tires are placed horizontally, which is convenient for loading and unloading of tires on the one hand, and also convenient for quickly positioning tires through the positioning mechanism on the other hand. It is not limited by tire size and can adapt to the positioning of tires of various sizes; 2. During tire uniformity correction, the first harmonic high point of the tire is heated at the same time during the clamping force process, so that the first harmonic high point of the tire is directly heated under a certain clamping force. The direct heating method is used to accurately heat the first harmonic high point of the tire, which not only saves time and reduces energy consumption, but also improves the uniformity correction efficiency of the tire. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. 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 creative work.

[0020] Figure 1 It is a side view of the structure of a horizontal tire uniformity correction device; Figure 2 It is a top view of the structure of a horizontal tire uniformity correction device; Figure 3 It is a schematic diagram of the structure of the upper tire expansion device; Figure 4 It is a top view of the upper tire expansion device structure; Figure 5 Schematic diagram of different viewing angles of the upper tire expansion device; Figure 6 It is a top view of the upper tire clamping device structure; Figure 7 It is a side view of the upper tire clamping device structure.

[0021] Reference numerals: 1. Upper tire clamping device, 2. Upper tire expanding device, 3. Machine frame, 4. Lower tire clamping device; 101. Horizontal sliding bracket, 102. Electric cylinder seat, 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; 201. tire expansion guide sleeve; 202. tire expansion guide shaft; 203. connecting frame; 204. hexagonal shaft; 205. left-handed Y-type connecting rod; 206. pin shaft; 207. tire expansion bracket; 208. right-handed Y-type connecting rod; 209. lifting frame; 210. guide plate; 211. tire expansion support servo motor; 212. tire expansion support electric cylinder; 213. tire expansion drag chain; 214. first drag chain plate; 215. second drag chain plate; 216. linear guide rail; 217. positioning block; 218. tire expansion lifting servo motor; 219. lifting guide rail. DETAILED DESCRIPTION

[0022] The following will be combined with the attached embodiment of the present invention Figure 1-7 , 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 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 descriptions of "first", "second", etc. in the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0025] In the description of the embodiments, unless otherwise clearly specified and limited, the terms "disposed", "connected" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or it can be connected through an intermediate medium, or it can be a communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Example 1

[0027] A horizontal tire uniformity correction device comprises a frame 3, an upper tire expanding device 2 and a lower tire expanding device symmetrically arranged, and an upper tire clamping device 1 and a lower tire clamping device 4 symmetrically arranged.

[0028] The upper tire expansion device 2 and the lower tire expansion device both include a tire expansion lifting device and an openable tire expansion support device. The upper tire expansion device and the lower tire expansion device move up and down into the horizontally placed tire bead, and the upper and lower edges of the bead are supported by the tire expansion support device to ensure the concentricity of the upper and lower bead. The tire enters the uniformity correction station in a horizontal manner. Before entering the station, the angle position of the first harmonic high point of the tire needs to be adjusted and fixed at a specific angle position.

[0029] The upper tire clamping device and the lower tire clamping device both include a horizontal sliding bracket, 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 the first harmonic high point of the tire is accurately heated by the clamping and heating device.

[0030] The upper tire expanding device and the lower tire expanding device are moved up and down into the horizontally placed tire bead through the tire expanding lifting device. The tire expanding device is used to expand and contract tires of different sizes so that the centers of the steel rims on both sides of the tire remain concentric. At the same time, the spacing of the tire expanding device is controlled to ensure the stability of the tire bead spacing to support the upper and lower edges of the bead.

[0031] The tire expansion lifting device includes a tire expansion lifting servo motor 218, a lifting rail 219, and a lifting frame 209. The tire expansion lifting servo motor 218 is installed at the end of the lifting rail 219. One end of the lifting frame 209 is clamped in the lifting rail, and the other end of the lifting frame is connected to the tire expansion support device.

[0032] The tire expansion support device includes a tire expansion support servo motor 211, a tire expansion guide shaft 202, a guide plate 210, and a tire expansion bracket 207. The tire expansion support servo motor 211 is connected to the tire expansion guide shaft 202 through the tire expansion support electric cylinder 212. The outer sliding sleeve of the tire expansion guide shaft is provided with a tire expansion guide sleeve 201. The tire expansion guide sleeve 201 is fixedly connected to the guide plate 210. The guide plate 210 is slidably connected to the tire expansion bracket 207 through a linear guide rail 216.

[0033] At least two linear guide rails are radiated outwards from the axis on the guide plate, and a tire expansion bracket is clamped on each linear guide rail.

[0034] There are at least two tire expansion brackets, which are arranged in pairs. The bases of the opposite tire expansion brackets 207 are respectively hinged with hexagonal shafts 204; the ends of the guide shafts are provided with connecting frames 203, and the hexagonal shafts 204 are respectively hinged on both sides of the connecting frames 203; the connecting frames are raised and lowered, and the hexagonal shafts drive the paired tire expansion brackets to slide along the linear guide rails 216, so that the tire expansion brackets support the edge of the tire bead.

[0035] The base of the tire expansion bracket 207 is connected to a left-handed Y-shaped connecting rod 205 through a pin 206. The left-handed Y-shaped connecting rod is hinged to one end of the hexagonal shaft 204. The other end of the hexagonal shaft 204 is connected to a right-handed Y-shaped connecting rod 208. The right-handed Y-shaped connecting rod 208 is connected to the connecting frame.

[0036] A positioning block is provided at the end of the tire expansion bracket 207 to facilitate supporting the tire.

[0037] The upper tire expansion device 2 and the lower tire expansion device are both provided with a tire expansion drag chain 213, which is fixed to the frame through a first drag chain plate 214 and fixed to the guide plate through a second drag chain plate 215. The tire expansion drag chain is used to protect the wires and communication lines to prevent them from being damaged during the movement of the equipment.

[0038] The horizontal sliding device includes a horizontal linear guide rail 105 arranged in parallel, a horizontal sliding bracket 101 slidably connected to the horizontal linear guide rail, and a horizontal servo motor 104 driving the horizontal sliding bracket. The horizontal sliding bracket 101 is connected to an electric cylinder seat 102, and the horizontal servo motor 104 is connected to the electric cylinder seat 102 through a horizontal sliding electric cylinder 103, thereby driving the horizontal sliding bracket to slide horizontally along the horizontal linear guide rails arranged in parallel.

[0039] 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.

[0040] The longitudinal sliding device comprises 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.

[0041] The clamping and heating device comprises a first heating plate 120, a second heating plate 121 and a second longitudinal servo motor 110 which are arranged opposite to each other, and the second heating plate 121 is connected to the clamping and heating connecting plate 118 via a clamping and heating connecting rod 119; The first heating plate 120 is located at the bottom of the clamping heating connection plate, and 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.

[0042] 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, and 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.

[0043] 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 through a clamping and heating connecting rod; The first heating plate and the second heating plate are clamped inside and outside the tire, and a clamping force on the first harmonic high point of the tire is generated by relative movement of the first heating plate and the second heating plate. 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.

[0044] In addition, the clamping heating device is integrally fixed by an aluminum box unit 115 and a longitudinally movable connecting plate 116 .

[0045] The tire of the present invention is placed horizontally, which is convenient for loading and unloading the tire, and the first harmonic high point of the tire is accurately heated by direct heating, thereby improving the success rate of correcting unqualified tires with uniformity and the production efficiency.

[0046] Example 2

[0047] The correction method using the horizontal tire uniformity correction device of embodiment 1 comprises the following steps: (1) Adjust the angle position of the tire's first harmonic high point The tire enters the uniformity correction station in a horizontal manner. Before entering the station, the angle position of the tire's first harmonic high point needs to be adjusted and fixed at a specific angle position; the adjustment angle can be manual or automatic through the equipment.

[0048] (2) Tire centering The upper tire expansion device and the lower tire expansion device are moved up and down into the horizontally placed tire bead through the tire expansion lifting device. The tire expansion device is used to expand and contract tires of different sizes so that the centers of the steel rims on both sides of the tire remain concentric. At the same time, the spacing of the tire expansion device is controlled to ensure the stability of the tire bead spacing and support the upper and lower edges of the bead. (3) Accurately heat the first harmonic high point of the tire The upper tire clamping device and the lower tire clamping device are moved into the tire ring separately or together, and clamped inside and outside the tire by the first heating plate and the second heating plate. The clamping force on the first harmonic high point of the tire is generated by the relative movement of the two, and the heating is turned on at the same time, so that the first harmonic high point of the tire is directly heated under a certain clamping force; (4) After heating is completed, the upper tire clamping device and the lower tire clamping device move in the opposite direction and return to their original positions; (5) The upper tire expansion device and the lower tire expansion device move in opposite directions to loosen the tire.

[0049] Before the tire uniformity correction, the high point of the first harmonic is accurately positioned and marked.

[0050] During tire uniformity correction, the high point of the first harmonic of the tire is heated at the same time during the clamping force process, so that the high point of the first harmonic of the tire is directly heated under a certain clamping force, which greatly improves the heat conduction efficiency and the efficiency of tire correction. In practice, tire uniformity correction can be completed in 3-5 minutes. Compared with the previous conduction heating, which takes about 30 minutes to correct a tire, it saves time and reduces energy consumption, and improves the efficiency of tire uniformity correction.

[0051] Among them, each of the above-mentioned driving units can adopt linear driving modules such as air cylinders, oil cylinders, electric cylinders, etc. commonly used in the field.

[0052] Compared with the prior art, the correction device of the present invention has the following advantages: The high point of the first harmonic of the tire is precisely heated by local heating, without the need to heat the entire tire or the entire tread of one side, which saves time and reduces energy consumption, and improves the uniformity correction efficiency of the tire.

[0053] 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 tire placement requirements are not high, and the positioning mechanism can be used to quickly align and position the tires in the later stage, thereby improving the tire loading and unloading efficiency.

[0054] The above description is only the preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement; when the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope of the present claim.

Claims

1. A horizontal tire uniformity correction device, characterized in that: It comprises a frame, an upper tire expanding device and a lower tire expanding device which are symmetrically arranged, and an upper tire clamping device and a lower tire clamping device which are symmetrically arranged; The upper tire expanding device and the lower tire expanding device both include a tire expanding lifting device and an openable and closable tire expanding supporting device. The upper tire expanding device and the lower tire expanding device move up and down into a horizontally placed tire bead, and the upper and lower edges of the bead are supported by the tire expanding supporting device, so that the centers of the steel rims on both sides of the tire remain concentric. 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 the first harmonic high point of the tire is accurately heated by the clamping and heating device.

2. A horizontal tire uniformity correction device according to claim 1, characterized in that: The tire expansion lifting device comprises a tire expansion lifting servo motor, a lifting guide rail, and a lifting frame. The tire expansion lifting servo motor is installed at the end of the lifting guide rail, one end of the lifting frame is clamped in the lifting guide rail, and the other end of the lifting frame is connected to the tire expansion support device.

3. A horizontal tire uniformity correction device according to claim 1, characterized in that: The tire expansion support device includes a tire expansion support servo motor, a tire expansion guide shaft, a guide plate, and a tire expansion bracket. The tire expansion support servo motor is connected to the tire expansion guide shaft through a tire expansion support electric cylinder. The tire expansion guide shaft is externally slidably sleeved with a tire expansion guide sleeve. The tire expansion guide sleeve is fixedly connected to the guide plate. The guide plate is slidably connected to the tire expansion bracket through a linear guide rail.

4. A horizontal tire uniformity correction device according to claim 3, characterized in that: At least two linear guide rails are radiated outward from the axis on the guide plate, and a tire expansion bracket is clamped on each linear guide rail.

5. A horizontal tire uniformity correction device according to claim 4, characterized in that: There are at least two tire expansion brackets, and the bases of the opposite tire expansion brackets are respectively hinged with hexagonal shafts; A connecting frame is provided at the end of the guide shaft, and the hexagonal shaft is hinged on both sides of the connecting frame respectively; The connecting frame is lifted and lowered, and the tire expansion bracket is driven to slide along the linear guide rail through the hexagonal shaft, so that the tire expansion bracket supports the edge of the tire bead.

6. A horizontal tire uniformity correction 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.

7. The horizontal tire uniformity correction device according to claim 1, characterized in that: The longitudinal sliding device comprises 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.

8. A horizontal tire uniformity correction device according to claim 7, 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 through 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, and is clamped inside and outside the tire by the first heating plate and the second heating plate. The first heating plate and the second heating plate are relative to each other to generate a clamping force on the first harmonic high point of the tire, and the heating is turned on at the same time, so that the first harmonic high point of the tire is directly heated under a certain clamping force.

9. A horizontal tire uniformity correction method, characterized in that: A horizontal tire uniformity correction device according to any one of claims 1 to 8 comprises the following steps: (1) Adjust the angle position of the tire's first harmonic high point The tire enters the uniformity correction station in a horizontal manner. Before entering the station, the angle position of the first harmonic high point of the tire needs to be adjusted and fixed at a specific angle position, so that after the tire enters the correction equipment, the first harmonic high point position always stops at the position that can be clamped by the heating and clamping hot plate; (2) Tire centering The upper tire expansion device and the lower tire expansion device are moved up and down into the horizontally placed tire bead through the tire expansion lifting device. The tire expansion device is used to expand and contract tires of different sizes so that the centers of the steel rims on both sides of the tire remain concentric. At the same time, the spacing of the tire expansion device is controlled to ensure the stability of the tire bead spacing and support the upper and lower edges of the bead. (3) Accurately heat the first harmonic high point of the tire The upper tire clamping device and the lower tire clamping device are moved into the tire ring separately or together, and clamped inside and outside the tire by the first heating plate and the second heating plate. The clamping force on the first harmonic high point of the tire is generated by the relative movement of the two, and the heating is turned on at the same time, so that the first harmonic high point of the tire is directly heated under a certain clamping force; (4) After heating is completed, the upper tire clamping device and the lower tire clamping device move in the opposite direction and return to their original positions; (5) The upper tire expansion device and the lower tire expansion device move in opposite directions to loosen the tire.

10. A horizontal tire uniformity correction method according to claim 9, characterized in that: Before the tire uniformity correction, the high point of the first harmonic is accurately positioned and marked.

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