Mold correction apparatus and correction method for radial tire

Abstract

This invention relates to the field of radial tire technology, and more particularly to a mold correction device and method for radial tires. It solves the problems of poor structural stability in existing technologies, the inability to achieve mold positioning and radial and axial correction, and therefore the inability to guarantee correction quality. The mold correction device and method for radial tires includes a support mechanism, a rotation mechanism, a correction mechanism, an adjustment mechanism, a limiting mechanism, a lifting mechanism, a cleaning mechanism, and an external inspection mechanism. This invention achieves automated correction, with high positioning accuracy, accurate correction, time and labor savings, a wide pressure range, good safety performance, simple installation, and long service life. It can be widely applied to the correction of casting aluminum alloy molds of different specifications.

Description

Technical Field

[0001] This invention relates to the field of radial tire technology, and more particularly to a mold correction device and correction method for radial tires. Background Technology

[0002] Radial tires, also known as steel-belted tires, are currently used only for low-speed, high-load vehicles or machinery, as well as for machinery in fixed positions. They are suitable for special vehicles such as riot control vehicles, armored cash transport vehicles, engineering vehicles, and forestry machinery.

[0003] Chinese Patent Application No. CN110843241A discloses a radial tire mold and its preparation method, comprising two L-shaped plates. The upper ends of the vertical plates of the two L-shaped plates are respectively fixedly connected to the middle of the lower side of a liquid storage tank. The middle of the upper side of the liquid storage tank has a liquid inlet. The middle of the upper side of the horizontal plates of the two L-shaped plates are respectively fixedly connected to the lower side of a disc. The upper side of the disc is attached to the lower side of the disc, and the middle of the disc has a circular through hole. The lower end of a set of evenly arranged lifting rings is fixedly connected to the upper edge of the disc. The upper side of the disc is provided with a set of T-shaped grooves arranged radially around the circumference. A motor is fixedly connected to one end of one side of a horizontal plate of the L-shaped plate. The residual burrs in the vent holes are sucked out by the pressure difference formed between the opposite side of a set of tire mold blocks and the outer side of the set of tire mold blocks, eliminating the need to use an electric drill to clean each hole, reducing cleaning time, and improving work efficiency.

[0004] However, this solution has poor structural stability, making it impossible to accurately position the mold and perform radial and axial correction on the tire mold. Therefore, the quality of the correction cannot be guaranteed. However, the quality of radial tires plays a significant role in safe driving, so the roundness error of radial tires must meet standards and cannot be too large. This places high demands on tire molds used to produce various tires. If the tire mold deforms or bulges, it must be corrected promptly. Therefore, we propose a mold correction device and method for radial tires that facilitates positioning and correction of the roundness of radial tires, in order to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a mold correction device and method for radial tires, which solves the problem that the existing technology has poor structural stability, cannot achieve mold positioning, and therefore cannot guarantee the quality of correction.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A mold straightening device and method for radial tires, comprising: a support mechanism, characterized in that a top plate is installed on the top of the support mechanism, a plurality of support legs are fixedly installed on the bottom of the top plate, the support legs are fixed by reinforcing rings, a support plate is also installed on the support legs, a motor is installed on the support plate, a rotating groove is opened above the top plate, a rotating mechanism is slidably and rotatably installed in the rotating groove, the rotating mechanism includes a placement platform, an installation hole is opened in the middle of the placement platform, a plurality of guide rods are installed radially at the installation hole, a first groove, a second groove and a third groove are evenly distributed along the installation hole on the placement platform, a lifting mechanism is installed at the installation hole, a sleeve is fixedly installed at the bottom of the placement platform, and a hydraulic cylinder is fixedly installed at the bottom of the sleeve;

[0008] A calibration mechanism is slidably installed in the first, second, and third slide grooves. An adjustment mechanism is slidably installed inside the calibration mechanism. A support plate is fixedly installed on the support mechanism. A limit mechanism is fixedly installed on the support plate. A cleaning mechanism and an external detection mechanism are installed on the limit mechanism.

[0009] Preferably, an internal gear is fixedly installed at the bottom of the placement platform, the internal gear meshing with a spur gear, and the spur gear is connected to the shaft of a motor via a rotating shaft.

[0010] Preferably, the calibration mechanism includes multiple calibration blocks, each calibration block having a guide groove and a guide slide groove inside. A guide block, a first guide post, and a second guide post are respectively fixedly mounted on the bottom of each calibration block. The guide block is slidably mounted in the first slide groove, the first guide post is slidably mounted in the second slide groove, and the second guide post is slidably mounted in the third slide groove. A sliding post is fixedly mounted at the front end of each calibration block, and the sliding post is slidably mounted in a sleeve. A return spring is installed inside the sleeve. The sleeve is fixedly mounted on a baffle, and the baffle is fixedly mounted on the upper part of the placement platform. Each calibration block is evenly distributed around the circumference of the placement platform. An avoidance groove is provided on the upper part of each calibration block, and a rotating wheel is installed in the middle of the avoidance groove.

[0011] Preferably, the adjustment mechanism includes multiple correction blocks II, which are slidably installed in the guide groove I. A guide block II is fixedly installed at the bottom of each correction block II. A corresponding pressure sensor is installed inside each guide block II. A reset spring II is fitted outside the pressure sensor. One end of the reset spring II contacts the guide block II and the other end contacts the guide groove I.

[0012] Preferably, the limiting mechanism includes multiple support blocks, the bottom of the support blocks is fixedly connected to the support plate, the top of the support blocks is fixedly installed with a support plate, a rotating plate is rotatably installed inside the support plate, the top of the support blocks has a threaded limit block, a cylinder is fixedly installed on the rotating plate, a connecting rod and a guide post are slidably connected through the rotating plate, the cylinder is connected to the connecting plate through the connecting rod, a guide post is connected to the bottom of the connecting plate, a compression spring is sleeved in the middle of the guide post, and an abutment head is fixedly installed at the bottom of the guide post.

[0013] Preferably, the lifting mechanism includes a first lifting column and a second lifting column. The first lifting column consists of a movable column and a conical column. The top of the first lifting column is threadedly connected to a limiting block. The first conical column is slidably connected to a rotating wheel. The movable column has multiple guide grooves evenly distributed on its outer diameter. The multiple guide grooves cooperate with corresponding guide rods. A connecting column is fixedly connected to the bottom of the movable column. The connecting column is connected to a hydraulic cylinder. The first lifting column has an clearance hole inside. The second lifting column is slidably installed in the clearance hole. The first lifting column has multiple guide grooves evenly distributed radially. Multiple guide pressing blocks are slidably installed in the guide grooves. A return spring is installed at the bottom of the clearance hole.

[0014] Preferably, the second lifting column is composed of a first guide column and a second conical column. A return spring is installed at the bottom of the clearance hole. The bottom of the second conical column contacts the top of the return spring. The second conical column contacts multiple guide extrusion blocks in the radial direction. The first guide column slides up and down within the clearance hole. A first hydraulic cylinder is installed at the top of the first guide column. The first hydraulic cylinder is limited and fixed by a first limiting block.

[0015] Preferably, the cleaning mechanism includes an air jet device and a collection device. The air jet device is mounted on a support block and consists of an air jet bracket. An air jet block is installed at the front end of the air jet bracket. The air jet block has multiple air jet heads and an air inlet pipe. The collection device includes a collection pipe and a fan. The collection pipe is fixed at a radial position of the sleeve and communicates with the sleeve. The fan is fixedly connected to the bottom of the collection pipe.

[0016] Preferably, the external testing mechanism includes a mounting bracket and a dial indicator, wherein the mounting bracket is mounted on a support block and the dial indicator is mounted on the support block.

[0017] A method for mold correction of radial tires includes the following specific steps:

[0018] S1. Based on the support mechanism, the mold of the radial tire that needs to be corrected is placed on the correction mechanism. The correction mechanism drives the correction block one to slide along the first slide groove, the second slide groove and the third slide groove through the lifting mechanism, so that the correction block one is attached to the inner wall of the radial tire mold. The contact head in the limiting mechanism limits the top of the radial tire mold. The correction block one continuously performs radial correction on the radial tire mold and performs axial correction on the radial tire mold through the contact head.

[0019] S2. The second correction block, through the first guide post and the second tapered post, causes the second tapered post to slide up and down within the clearance hole under the action of the first hydraulic cylinder. The second tapered post contacts multiple guide extrusion blocks in the radial direction, pushing the guide extrusion blocks to slide in the guide groove, thereby pushing the second correction block to move radially along the first guide groove, so that the second correction block contacts the inner wall of the radial tire mold. The pressure sensor inside the second guide block continuously corrects the radial tire mold through different pressure values ​​until the pressure sensor reaches the same value.

[0020] S3. Driven by a rotating mechanism under the action of motor one, spur gear two causes the internal gear one fixedly installed at the bottom of the placement platform to rotate with the placement platform in the rotating groove, causing the radial tire mold placed on the placement platform to rotate. The outer diameter of the radial tire mold is detected by a dial indicator installed on the support block. The values ​​of the pressure sensor and the dial indicator are analyzed. When the values ​​detected by each pressure sensor are the same and the dial indicator needle has almost no jump, it indicates that the wall thickness of the calibrated radial tire mold is uniform and round. When the values ​​detected by each pressure sensor are the same but the dial indicator needle jumps significantly, or when the values ​​detected by each pressure sensor differ significantly and the dial indicator needle jumps significantly, it indicates that the wall thickness of the calibrated radial tire mold is uneven and not round, and the radial tire mold needs further calibration.

[0021] S4. After passing through the rotation mechanism, cleaning mechanism, and external inspection mechanism, the calibrated radial tire mold is sprayed onto the outside of the radial tire mold by the air jet device in the cleaning mechanism. The air jet head sprays gas onto the outside of the radial tire mold, clearing the blocked vent holes in the radial tire mold. The blown-out impurities are collected by the exhaust fan and collection pipe, making the external inspection mechanism more accurate in inspecting the outside of the radial tire mold.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. In this invention, the correction mechanism drives the correction block one to slide along the first slide groove, the second slide groove and the third slide groove through the lifting mechanism, so that the correction block one is attached to the inner wall of the radial tire mold. The contact head in the limiting mechanism limits the top of the radial tire mold. The correction block one continuously performs radial correction on the radial tire mold and performs axial correction on the radial tire mold through the contact head.

[0024] 2. In this invention, the second correction block is guided by the first guide post and the second tapered post. Under the action of the first hydraulic cylinder, the second tapered post guides the first guide post to slide up and down in the clearance hole. The second tapered post contacts multiple guide extrusion blocks in the radial direction, pushing the guide extrusion blocks to slide in the guide groove, thereby pushing the second correction block to move radially along the first guide groove, so that the second correction block contacts the inner wall of the radial tire mold. The pressure sensor inside the second guide block continuously corrects the radial tire mold through different pressure values.

[0025] 3. In this invention, a rotating mechanism drives a spur gear two under the action of a motor, causing the spur gear two to drive an internal gear one fixedly installed at the bottom of the placement platform to rotate within the rotating groove. This causes the radial tire mold placed on the placement platform to rotate. A dial indicator installed on the support block detects the outer diameter of the radial tire mold. The values ​​of the pressure sensors and the dial indicator are analyzed. When the values ​​detected by each pressure sensor are the same, and the dial indicator needle shows almost no movement, it indicates that the wall thickness of the corrected radial tire mold is uniform and relatively round. When the values ​​detected by each pressure sensor are the same, but the dial indicator needle shows large movement, or when the values ​​detected by each pressure sensor differ significantly and the dial indicator needle shows large movement, it indicates that the wall thickness of the corrected radial tire mold is uneven and not round, requiring further correction of the radial tire mold.

[0026] 4. In this invention, after passing through the rotation mechanism, cleaning mechanism, and external inspection mechanism, the corrected radial tire mold is sprayed to the outside of the radial tire mold by the jetting device in the cleaning mechanism. The gas is sprayed to the outside of the radial tire mold through the jetting head, so that the blocked vent holes in the radial tire mold become normal. The impurities blown out are collected under the action of the exhaust fan and the collection pipe, so that the external inspection mechanism can more accurately inspect the outside of the radial tire mold. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the supporting mechanism and limiting mechanism of the present invention;

[0030] Figure 3 This is a schematic diagram of the support mechanism and correction mechanism of the present invention;

[0031] Figure 4 This is a schematic diagram of the limiting mechanism structure of the present invention;

[0032] Figure 5 This is a schematic diagram of the correction mechanism and lifting mechanism of the present invention;

[0033] Figure 6 This is a schematic diagram of the adjustment mechanism structure of the present invention;

[0034] Figure 7 This is a schematic diagram of the lifting mechanism structure of the present invention;

[0035] Figure 8 This is a schematic diagram of the support mechanism and lifting mechanism of the present invention;

[0036] Figure 9 This is a schematic diagram of the lifting mechanism and the correction mechanism of the present invention;

[0037] Figure 10 This is a schematic diagram of the correction mechanism structure of the present invention;

[0038] Figure 11 This is a schematic diagram of the adjustment mechanism structure of the present invention;

[0039] Figure 12 This is a schematic diagram of the rotating mechanism structure of the present invention;

[0040] Figure 13 This is a schematic diagram of the cleaning mechanism structure of the present invention;

[0041] Figure 14 This is a schematic diagram of the external detection mechanism of the present invention.

[0042] In the diagram: 1. Support mechanism; 11. Top plate; 111. Rotating slide; 112. First slide; 113. Second slide; 114. Third slide; 12. Support plate; 121. Motor 1; 13. Reinforcing ring; 14. Support leg; 2. Rotating mechanism; 21. Placement platform; 211. Mounting hole; 212. Internal gear 1; 213. Spur gear 2; 214. Rotating shaft 1; 215. Guide rod; 216. Sleeve; 3. Alignment machine Structure; 31. Correction block one; 311. Clearance groove; 312. Rotating wheel; 32. Guide groove one; 321. Guide slide groove one; 33. Guide block one; 34. First guide post; 35. Second guide post; 36. Sliding post; 37. Sleeve one; 38. Return spring one; 39. Baffle; 4. Adjustment mechanism; 41. Correction block two; 42. Guide block two; 43. Pressure sensor; 44. Return spring two; 5. Limiting mechanism; 51 51. Support block; 52. Support plate; 53. Rotating plate; 54. Limiting block; 55. Cylinder; 551. Connecting rod; 56. Connecting plate; 57. Guide column; 58. Compression spring; 59. Contact head; 6. Lifting mechanism; 61. Lifting column one; 611. Moving column; 612. Conical column one; 613. Guide groove; 614. Connecting column; 615. Hydraulic cylinder; 616. Guide slide; 617. Guide compression block; 618. Hydraulic... Cylinder 1; 619, Limiting Block 1; 62, Lifting Column 2; 621, Return Spring; 622, Guide Column 1; 623, Conical Column 2; 63, Clearance Hole; 7, Cleaning Mechanism; 71, Air Jet Device; 711, Air Inlet Pipe; 712, Air Jet Support; 713, Air Jet Block; 714, Air Jet Head; 72, Collection Device; 721, Collection Pipe; 722, Exhaust Fan; 8, External Inspection Mechanism; 81, Mounting Bracket; 82, Dial Indicator. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Example 1

[0044] Reference Figure 1-14A mold correction device and correction method for radial tires includes: a support mechanism 1, a top plate 11 installed on the top of the support mechanism 1, a plurality of support legs 14 fixedly installed on the bottom of the top plate 11, the support legs 14 being fixed by reinforcing rings 13, a support plate 12 also installed on the support legs 14, a motor 121 installed on the support plate 12, a rotating groove 111 opened above the top plate 11, a rotating mechanism 2 slidably and rotatably installed in the rotating groove 111, the rotating mechanism 2 including a placement platform 21, an installation hole 211 opened in the middle of the placement platform 21, a plurality of guide rods 215 radially distributed at the position of the installation hole 211, a first groove 112, a second groove 113 and a third groove 114 evenly distributed along the installation hole 211 on the placement platform 21, a lifting mechanism 6 installed at the position of the installation hole 211, a sleeve 216 fixedly installed at the bottom of the placement platform 21, and a hydraulic cylinder 615 fixedly installed at the bottom of the sleeve 216;

[0045] A correction mechanism 3 is slidably installed in the first slide groove 112, the second slide groove 113 and the third slide groove 114. An adjustment mechanism 4 is slidably installed inside the correction mechanism 3. A support plate 12 is fixedly installed on the support mechanism 1. A limit mechanism 5 is fixedly installed on the support plate 12. A cleaning mechanism 7 and an external detection mechanism 8 are installed on the limit mechanism 5.

[0046] Furthermore, referring to Figure 12 An internal gear 212 is fixedly installed at the bottom of the placement platform 21. The internal gear 212 meshes with the spur gear 213. The spur gear 213 is connected to the shaft of the motor 121 through the rotating shaft 214.

[0047] Furthermore, referring to Figure 8-12 The calibration mechanism 3 includes multiple calibration blocks 31. Each calibration block 31 has a guide groove 32 inside and a guide slide groove 321 inside. Each calibration block 31 has a guide block 33, a first guide post 34, and a second guide post 35 fixedly installed at the bottom. The guide block 33 is slidably installed in the first slide groove 112, the first guide post 34 is slidably installed in the second slide groove 113, and the second guide post 35 is slidably installed in the third slide groove 114. A sliding post 36 is fixedly installed at the front end of the calibration block 31. The sliding post 36 is slidably installed in the sleeve 37. A return spring 38 is installed in the sleeve 37. The sleeve 37 is fixedly installed on the baffle 39. The baffle 39 is fixedly installed on the upper part of the placement platform 21. Each calibration block 31 is evenly distributed around the circumference of the placement platform 21. Each calibration block 31 has an avoidance groove 311 on its upper part. A rotating wheel 312 is installed in the middle of the avoidance groove 311.

[0048] Furthermore, refer to Figure 7-9The lifting mechanism 6 includes a first lifting column 61 and a second lifting column 62. The first lifting column 61 is composed of a moving column 611 and a first conical column 612. The top of the first lifting column 61 is threadedly connected to a first limiting block 619. The first conical column 612 is slidably connected to a rotating wheel 312. The outer diameter of the moving column 611 is evenly provided with multiple guide grooves 613. The multiple guide grooves 613 cooperate with the corresponding guide rods 215. The bottom of the moving column 611 is fixedly connected with a connecting column 614. The connecting column 614 is connected to a hydraulic cylinder 615. The first lifting column 61 has an avoidance hole 63 inside. The second lifting column 62 is slidably installed in the avoidance hole 63. The first lifting column 61 has multiple guide grooves 616 evenly provided radially. Multiple guide pressing blocks 617 are slidably installed in the guide grooves 616. A return spring 621 is installed at the bottom of the avoidance hole 63.

[0049] Furthermore, referring to Figure 4 The limiting mechanism 5 includes multiple support blocks 51. The bottom of the support block 51 is fixedly connected to the support plate 12. A support plate 52 is fixedly installed on the top of the support block 51. A rotating plate 53 is rotatably installed inside the support plate 52. A limiting block 54 is threaded on the top of the support block 51. A cylinder 55 is fixedly installed on the rotating plate 53. A connecting rod 551 and a guide post 57 are slidably connected through the rotating plate 53. The cylinder 55 is connected to the connecting plate 56 through the connecting rod 551. A guide post 57 is connected to the bottom of the connecting plate 56. A compression spring 58 is sleeved in the middle of the guide post 57. An abutment head 59 is fixedly installed at the bottom of the guide post 57.

[0050] Based on the support mechanism 1, the mold of the radial tire that needs to be corrected is placed on the correction mechanism 3. The correction mechanism 3 drives the correction block 31 to slide along the first slide groove 112, the second slide groove 113 and the third slide groove 114 through the lifting mechanism 6, so that the correction block 31 is attached to the inner wall of the radial tire mold. The contact head 59 in the limiting mechanism 5 limits the top of the radial tire mold. The correction block 31 continuously performs radial correction on the radial tire mold and performs axial correction on the radial tire mold through the contact head 59. Example 2

[0051] After axially correcting the mold of the radial tire, it was found that the fine parts could not be further finely corrected by the current correction block 31.

[0052] Features including Example 1

[0053] Further reference Figure 6-10The adjustment mechanism 4 includes multiple correction blocks 41, which are slidably installed in the guide groove 321. Guide blocks 42 are fixedly installed at the bottom of the correction blocks 41. Each guide block 42 has a corresponding pressure sensor 43 installed inside. A reset spring 44 is fitted on the outside of the pressure sensor 43. One end of the reset spring 44 contacts the guide block 42 and the other end contacts the guide groove 321.

[0054] Furthermore, the second lifting column 62 is composed of a first guide column 622 and a second conical column 623. A return spring 621 is installed at the bottom of the clearance hole 63. The bottom of the second conical column 623 contacts the top of the return spring 621. The second conical column 623 contacts multiple guide extrusion blocks 617 in the radial direction. The first guide column 622 slides up and down within the clearance hole 63. A first hydraulic cylinder 618 is installed at the top of the first guide column 622. The first hydraulic cylinder 618 is limited and fixed by a first limiting block 619.

[0055] The second correction block 41, through the guide post 622 and the tapered post 623, causes the guide post 622 to slide up and down within the clearance hole 63 under the action of the hydraulic cylinder 618. The tapered post 623 contacts multiple guide extrusion blocks 617 in the radial direction, pushing the guide extrusion blocks 617 to slide within the guide groove 616, thereby pushing the second correction block 41 to move radially along the guide groove 321, so that the second correction block 41 contacts the inner wall of the radial tire mold. The pressure sensor 43 corresponding inside the guide block 42 continuously corrects the radial tire mold through different pressure values ​​until the pressure sensor 43 reaches the same value.

[0056] The rotating mechanism 2, driven by the motor 121, drives the spur gear 213, which in turn drives the internal gear 212 fixedly mounted at the bottom of the placement platform 21 to rotate within the rotating groove 111. This causes the radial tire mold placed on the placement platform 21 to rotate. The outer diameter of the radial tire mold is detected by the dial indicator 82 mounted on the support block 51. The values ​​of the pressure sensor 43 and the dial indicator 82 are analyzed. When the values ​​detected by each pressure sensor 43 are the same, the dial indicator 82 needle shows almost no jump, indicating that the wall thickness of the corrected radial tire mold is uniform and round. When the values ​​detected by each pressure sensor 43 are the same, but the dial indicator 82 needle jumps significantly, or when the values ​​detected by each pressure sensor 43 differ significantly and the dial indicator 82 needle jumps significantly, it indicates that the wall thickness of the corrected radial tire mold is uneven and not round, requiring further correction of the radial tire mold. Example 3

[0057] After further calibration of the radial tire mold, it was observed that some of the vent holes in the radial tire mold were blocked, affecting its future use.

[0058] Features including Embodiment 1 and Embodiment 2

[0059] Furthermore, refer to Figure 7 , Figure 13 The cleaning mechanism 7 includes an air jet device 71 and a collection device 72. The air jet device 71 is mounted on a support block 51 and consists of an air jet bracket 712. An air jet block 713 is mounted at the front end of the air jet bracket 712. Multiple air jet heads 714 are provided on the air jet block 713, and an air inlet pipe 711 is provided on the air jet block 713. The collection device 72 includes a collection pipe 721 and a fan 722. The collection pipe 721 is fixed at a radial position on the sleeve 216 and communicates with the sleeve 216. The fan 722 is fixedly connected to the bottom of the collection pipe 721. (Refer to...) Figure 7 The external testing mechanism 8 includes a mounting bracket 81 and a dial indicator 82. The mounting bracket 81 is mounted on a support block 51, and the dial indicator 82 is mounted on the support block 51.

[0060] After correction, the radial tire mold is sprayed with air by the jetting device 71 in the cleaning mechanism 7. The air is sprayed onto the outside of the radial tire mold through the jetting head 714, so that the blocked vent holes in the radial tire mold are cleared. The blown impurities are collected by the blown-out fan 722 and the collection pipe 721, so that the external inspection mechanism 8 can perform more accurate inspection on the outside of the radial tire mold.

[0061] Based on the above embodiments, this embodiment also provides a mold correction method for radial tires, including the following specific steps:

[0062] S1. Based on the support mechanism 1, the mold of the radial tire that needs to be corrected is placed on the correction mechanism 3. The correction mechanism 3 drives the correction block 31 to slide along the first slide groove 112, the second slide groove 113 and the third slide groove 114 through the lifting mechanism 6, so that the correction block 31 is attached to the inner wall of the radial tire mold. The contact head 59 in the limiting mechanism 5 limits the top of the radial tire mold. The correction block 31 continuously performs radial correction on the radial tire mold and performs axial correction on the radial tire mold through the contact head 59.

[0063] S2. The second correction block 41, through the guide post 622 and the tapered post 623, causes the guide post 622 to slide up and down in the clearance hole 63 under the action of the hydraulic cylinder 618. The tapered post 623 contacts multiple guide extrusion blocks 617 in the radial direction, pushing the guide extrusion blocks 617 to slide in the guide groove 616, thereby pushing the second correction block 41 to move radially along the guide groove 321, so that the second correction block 41 contacts the inner wall of the radial tire mold. The pressure sensor 43 corresponding inside the guide block 42 continuously corrects the radial tire mold through different pressure values ​​until the pressure sensor 43 reaches the same value.

[0064] S3. The rotating mechanism 2 drives the spur gear 213 under the action of the motor 121, so that the spur gear 213 drives the internal gear 212 fixedly installed at the bottom of the placement platform 21 to rotate with the placement platform 21 in the rotating slide 111, so that the radial tire mold placed on the placement platform 21 rotates. The outer diameter of the radial tire mold is detected by the dial indicator 82 installed on the support block 51. The values ​​of the pressure sensor 43 and the dial indicator 82 are analyzed. When the values ​​detected by each pressure sensor 43 are the same, the dial indicator 82 needle basically does not jump, which indicates that the wall thickness of the calibrated radial tire mold is uniform and relatively round. When the values ​​detected by each pressure sensor 43 are the same, the dial indicator 82 needle jumps a lot, or the values ​​detected by each pressure sensor 43 differ a lot and the dial indicator 82 needle jumps a lot, which indicates that the wall thickness of the calibrated radial tire mold is uneven and not round, and the radial tire mold needs to be further calibrated.

[0065] S4. After passing through the rotating mechanism 2, cleaning mechanism 7 and external inspection mechanism 8, the calibrated radial tire mold is sprayed to the outside of the radial tire mold by the jetting device 71 in the cleaning mechanism 7. The gas is sprayed to the outside of the radial tire mold through the jetting head 714, so that the blocked vent holes in the radial tire mold are cleared. The blown impurities are collected by the blown-out fan 722 and the collection pipe 721, so that the external inspection mechanism 8 can more accurately inspect the outside of the radial tire mold.

[0066] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A mold correction apparatus for radial tires, characterized by, include: A support mechanism is characterized in that a top plate is installed on the top of the support mechanism, a plurality of support legs are fixedly installed on the bottom of the top plate, the support legs are fixed by reinforcing rings, a support plate is also installed on the support legs, a motor is installed on the support plate, a rotating groove is opened above the top plate, a rotating mechanism is slidably and rotatably installed in the rotating groove, the rotating mechanism includes a placement platform, an installation hole is opened in the middle of the placement platform, a plurality of guide rods are installed radially at the installation hole, a first groove, a second groove and a third groove are evenly distributed along the installation hole on the placement platform, a lifting mechanism is installed at the installation hole, a sleeve is fixedly installed at the bottom of the placement platform, and a hydraulic cylinder is fixedly installed at the bottom of the sleeve; A calibration mechanism is slidably installed in the first slide, the second slide, and the third slide. An adjustment mechanism is slidably installed inside the calibration mechanism. A support plate is fixedly installed on the support mechanism. A limit mechanism is fixedly installed on the support plate. A cleaning mechanism and an external detection mechanism are installed on the limit mechanism. An internal gear is fixedly installed at the bottom of the placement platform. The internal gear meshes with a spur gear, and the spur gear is connected to the shaft of a motor through a rotating shaft. The calibration mechanism includes multiple calibration blocks, each with a guide groove and a guide slide groove inside. A guide block, a first guide post, and a second guide post are fixedly mounted on the bottom of each calibration block. The guide block is slidably mounted in the first slide groove, the first guide post is slidably mounted in the second slide groove, and the second guide post is slidably mounted in the third slide groove. A sliding post is fixedly mounted on the front end of each calibration block, and the sliding post is slidably mounted in a sleeve. A return spring is installed inside the sleeve. The sleeve is fixedly mounted on a baffle, and the baffle is fixedly mounted on the upper part of the placement platform. Each calibration block is evenly distributed around the circumference of the placement platform. An clearance groove is provided on the upper part of each calibration block, and a rotating wheel is installed in the middle of the clearance groove. The adjustment mechanism includes multiple correction blocks II, which are slidably installed in the guide groove I. A guide block II is fixedly installed at the bottom of the correction block II. A corresponding pressure sensor is installed inside each guide block II. A reset spring II is fitted on the outside of the pressure sensor. One end of the reset spring II contacts the guide block II and the other end contacts the guide groove I. The limiting mechanism includes multiple support blocks. The bottom of each support block is fixedly connected to a support plate. A support plate is fixedly installed on the top of each support block. A rotating plate is rotatably installed inside the support plate. A limiting block is threaded on the top of the support block. A cylinder is fixedly installed on the rotating plate. A connecting rod and a guide post are slidably connected through the rotating plate. The cylinder is connected to the connecting plate through the connecting rod. A guide post is connected to the bottom of the connecting plate. A compression spring is sleeved in the middle of the guide post. An abutment head is fixedly installed at the bottom of the guide post. The lifting mechanism includes a lifting column one and a lifting column two. The lifting column one consists of a movable column and a conical column one. The top of the lifting column one is threadedly connected to a limiting block one. The conical column one is slidably connected to a rotating wheel. The movable column has multiple guide grooves evenly distributed on its outer diameter. The multiple guide grooves cooperate with the corresponding guide rods. A connecting column is fixedly connected to the bottom of the movable column. The connecting column is connected to a hydraulic cylinder. The lifting column one has an clearance hole inside. The lifting column two is slidably installed in the clearance hole. The lifting column one has multiple guide grooves evenly distributed radially. Multiple guide extrusion blocks are slidably installed in the guide grooves. A return spring is installed at the bottom of the clearance hole. The second lifting column is composed of a guide column and a conical column. The bottom of the second conical column contacts the top of the reset spring. The second conical column contacts multiple guide extrusion blocks in the radial direction. The guide column slides up and down within the clearance hole. A hydraulic cylinder is installed on the top of the guide column. The hydraulic cylinder is limited and fixed by a limiting block. The external testing mechanism includes a mounting bracket and a dial indicator. The mounting bracket is mounted on a support block, and the dial indicator is mounted on the support block.

2. A radial tire mold correction apparatus according to claim 1, wherein The cleaning mechanism includes an air jet device and a collection device. The air jet device is mounted on a support block and consists of an air jet bracket. An air jet block is installed at the front end of the air jet bracket. The air jet block has multiple air jet heads and an air inlet pipe. The collection device includes a collection pipe and a fan. The collection pipe is fixed at the radial position of the sleeve and communicates with the sleeve. The fan is fixedly connected to the bottom of the collection pipe.

3. The calibration method for a radial tire mold calibration device according to claim 2, characterized in that, The specific steps include: S1. Based on the support mechanism, the mold of the radial tire that needs to be corrected is placed on the correction mechanism. The correction mechanism drives the correction block one to slide along the first slide groove, the second slide groove and the third slide groove through the lifting mechanism, so that the correction block one is attached to the inner wall of the radial tire mold. The contact head in the limiting mechanism limits the top of the radial tire mold. The correction block one continuously performs radial correction on the radial tire mold and performs axial correction on the radial tire mold through the contact head. S2. The second correction block is guided by the first guide post and the second tapered post. Under the action of the first hydraulic cylinder, the second tapered post guides the first guide post to slide up and down in the clearance hole. The second tapered post contacts multiple guide extrusion blocks in the radial direction, pushing the guide extrusion blocks to slide in the guide groove, thereby pushing the second correction block to move radially along the first guide groove, so that the second correction block contacts the inner wall of the radial tire mold. The pressure sensor inside the second guide block continuously corrects the radial tire mold through different pressure values ​​until the pressure sensor reaches the same value. S3. Driven by the rotating mechanism under the action of motor one, spur gear two drives the internal gear one fixedly installed at the bottom of the placement platform to rotate with the placement platform in the rotating groove, causing the radial tire mold placed on the placement platform to rotate. The outer diameter of the radial tire mold is detected by a dial indicator installed on the support block. The values ​​of the pressure sensor and the dial indicator are analyzed. When the values ​​detected by each pressure sensor are the same, if the dial indicator needle does not jump much, it means that the wall thickness of the radial tire mold after calibration is uniform and round. If the dial indicator needle jumps a lot or the values ​​detected by each pressure sensor differ greatly and the dial indicator needle jumps a lot, it means that the wall thickness of the radial tire mold after calibration is uneven and not round, and the radial tire mold needs to be further calibrated. S4. After passing through the rotation mechanism, cleaning mechanism, and external inspection mechanism, the corrected radial tire mold is sprayed to the outside of the radial tire mold by the jetting device in the cleaning mechanism. The gas is sprayed to the outside of the radial tire mold through the jetting head, so that the blocked vent holes in the radial tire mold are cleared. The blown-out impurities are collected by the exhaust fan and collection pipe, so that the external inspection mechanism can more accurately inspect the outside of the radial tire mold.

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