Sponge-filled automobile tire and method of making the same

Abstract

The present application provides a sponge-filled automobile tire and a manufacturing method thereof, comprising a tire body and a sponge block; the tire body is provided with a through hole for passing through a hub, and a cavity is arranged in the tire body and communicates with the through hole, and the sponge block is inserted into the cavity; the sponge block is provided with a through opening, and a cloth sleeve is sleeved on the outer wall of the sponge block outside the through opening. The present application utilizes the design of the cloth sleeve, the cloth sleeve is sleeved on the outside of the sponge block, when the sponge block is filled into the cavity, the cloth sleeve on the outside of the sponge block is bonded with the glue sprayed on the inner wall of the cavity, avoiding the case that the sponge block is directly bonded inside the cavity, when the tire body is punctured, the cloth sleeve is separated from the tire body, so that the sponge block can be disassembled, which facilitates the disassembly of the sponge block, and avoids the case that the sponge block and the tire body are bonded and broken during disassembly of the sponge block, part of the sponge block is left in the cavity, which causes inconvenience in cleaning and repairing the tire body.

Description

Technical Field

[0001] This invention relates to the field of automotive tire equipment technology, specifically to automotive tires filled with sponge and their manufacturing methods. Background Technology

[0002] Tires are annular, elastic rubber products that are mounted on various vehicles or machinery and roll on the ground. They are typically mounted on metal rims, supporting the vehicle body, cushioning external impacts, ensuring contact with the road surface, and guaranteeing the vehicle's driving performance. Tires are often used under complex and harsh conditions, enduring various deformations, loads, and extreme temperatures during operation; therefore, they must possess high load-bearing capacity, traction capacity, and cushioning performance.

[0003] When a car tire travels on the ground, friction is generated between the tire and the road surface, the interaction between the tire tread or texture and the road surface causes vibration and shock, and the tire rotates rapidly and is subjected to lateral and radial forces, which generates noise and affects the driver's driving experience.

[0004] Currently, to reduce the noise generated by car tires when driving, some tires on the market are filled with sponge. The sponge effectively absorbs noise generated by vibration, preventing its propagation and reflection within the tire cavity, thus achieving noise reduction. To facilitate the fixation of the sponge, existing sponge-filled tires involve first spraying glue onto the inside of the tire, then filling the tire with the sponge, and finally bonding the sponge to the tire using glue. While this method effectively bonds the sponge to the tire and achieves noise reduction, it still has the following drawbacks in practical use:

[0005] Since tires are inevitably punctured during driving, when a tire is punctured, it needs to be removed and repaired from inside. If there is sponge bonded inside the tire, the sponge needs to be removed first. When removing the sponge, the bond between the sponge and the tire is prone to breakage, resulting in some sponge remaining inside the cavity, making cleaning inconvenient and hindering tire repair.

[0006] Therefore, this application proposes a car tire filled with sponge and a method for manufacturing the same. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides a car tire filled with sponge and a method for manufacturing the same, thus solving the problems mentioned in the background section.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A car tire filled with sponge, comprising the tire body and sponge blocks;

[0010] The tire body has a perforation for the wheel hub to pass through, and the tire body has a cavity connected to the perforation. A sponge block is inserted into the cavity. The sponge block has a through-hole, and a cloth sleeve is fitted on the outer wall of the sponge block outside the through-hole. When the sponge block is inserted into the cavity, the through-hole and the perforation are located on the same axial direction, and the cloth sleeve is in contact with the inner wall of the cavity.

[0011] A method for manufacturing a car tire filled with sponge, using the aforementioned method for manufacturing a car tire filled with sponge, includes the following steps:

[0012] S1. Prepare raw materials: Prepare tire body, sponge block, and cloth cover;

[0013] S2. Covering with fabric: Place the fabric cover on the outer wall of the sponge block and bond the fabric cover to the sponge block.

[0014] S3. Apply adhesive: Apply adhesive to the inner wall of the perforation;

[0015] S4. Filling: The sponge block is filled into the cavity using a filling device to bond the sponge block to the tire body;

[0016] S5. Limiting: Limiting the sponge block so that the through opening and the perforation are on the same axial direction;

[0017] S6. Rotation: To make the tire body rotate.

[0018] Furthermore: the filling device includes a base, a positioning mechanism, a limiting mechanism, and a driving mechanism;

[0019] The positioning mechanism is mounted on the base and is used to position the tire body.

[0020] The limiting mechanism is installed on the base and is located directly above the positioning mechanism. When the sponge block is inserted into the cavity, the limiting mechanism is used to limit the sponge block so that the through opening and the perforation are in the same axial direction.

[0021] The drive mechanism is mounted on the base and connected to the positioning mechanism. The drive mechanism is used to drive the positioning mechanism to rotate on the base.

[0022] Furthermore: the positioning mechanism includes a mounting plate installed on the base, two arc-shaped clamping plates are slidably mounted on the top of the mounting plate, the two arc-shaped clamping plates are symmetrically arranged, and support plates are fixed at the bottom positions on opposite sides of the two arc-shaped clamping plates. A driving element that acts on the two arc-shaped clamping plates is installed on the mounting plate, which is used to make the two arc-shaped clamping plates move closer or further apart from each other.

[0023] The driving component includes a bidirectional threaded rod rotatably mounted on a mounting plate, the bidirectional threaded rod being threadedly connected to two arc-shaped clamping plates.

[0024] Furthermore: the limiting mechanism includes a bracket mounted on the base, and a mounting block mounted on the bracket directly above the through hole. The mounting block has a circular cross-section, and the center of the mounting block and the center of the arc-shaped clamping plate are on the same axis. Four vertically oriented first telescopic rods are fixedly mounted in a circular array at the bottom of the mounting block. A connecting block is fixed to the telescopic end of each first telescopic rod. A first electric push rod connected to the connecting block is fixedly mounted on the mounting block. Horizontally oriented second telescopic rods are fixedly mounted on the sides of the four connecting blocks that are far apart from each other. A connecting plate is fixed to the telescopic end of each second telescopic rod. A second electric push rod connected to the connecting plate is fixedly mounted on the connecting block. An arc-shaped limiting plate is mounted on the connecting plate, and the center of the arc-shaped limiting plate and the center of the arc-shaped clamping plate are on the same axis.

[0025] Furthermore: the drive mechanism includes a vertically oriented shaft rotatably mounted on the base, and a mounting plate is rotatably mounted on the base via the shaft; a motor is fixedly mounted on the base, and the output shaft of the motor is connected to the shaft via a bevel gear assembly.

[0026] Furthermore: the arc-shaped limiting plate is hinged to the connecting plate, and a third electric push rod for driving the arc-shaped limiting plate to rotate is installed on the connecting plate; a glue spraying mechanism is installed on the free end of the arc-shaped limiting plate.

[0027] Furthermore: the glue spraying mechanism includes:

[0028] There are multiple self-locking spring nozzles. The arc-shaped limiting plate has a receiving cavity. The free end of the arc-shaped limiting plate has multiple glue outlet holes that are connected to the receiving cavity. The multiple self-locking spring nozzles are fixedly installed in the multiple glue outlet holes. The glue inlet pipe connected to the receiving cavity is fixedly installed on the arc-shaped limiting plate.

[0029] Furthermore: two sliders are slidably mounted on the base, the longitudinal section of the bracket is inverted U-shaped, the two ends of the bracket are fixedly connected to the two sliders respectively, and a driving component connected to one of the sliders is installed on the base, which is used to make the slider slide on the base;

[0030] A guide rod moves vertically through the bracket, and the mounting block is mounted on the bracket via the guide rod. A fourth electric actuator connected to the mounting block is fixedly mounted on the bracket.

[0031] Furthermore: the driving component includes a driving rod rotatably mounted on the base, the driving rod being threadedly connected to the slider, and a motor connected to the driving rod being fixedly mounted on the base.

[0032] This invention provides a car tire filled with sponge and a method for manufacturing the same. Compared with the prior art, it has the following advantages:

[0033] 1. Utilizing a fabric sleeve design, the fabric sleeve is placed over the outside of the sponge block. After spraying glue onto the inner wall of the cavity, the sponge block is inserted into the cavity. This ensures that when the sponge block fills the cavity, the fabric sleeve on the outside of the sponge block adheres to the glue sprayed on the inner wall of the cavity, avoiding the situation where the sponge block is directly adhered to the inside of the cavity. When the tire body is punctured, the fabric sleeve can be separated from the tire body to remove the sponge block, which facilitates the removal of the sponge block. At the same time, it avoids the situation where the sponge block breaks at the bonding point with the tire body during removal, leaving some sponge block inside the cavity, which would make cleaning inconvenient and make it difficult to repair the tire body.

[0034] 2. Both the sponge block and the fabric sleeve are porous materials, allowing airflow to pass through the pores normally without affecting tire inflation and deflation. The sponge block has excellent elasticity, and when the tire body is compressed and then recovers, the sponge block can also be compressed and recovered synchronously, ensuring effective filling within the tire body. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 A three-dimensional structural schematic diagram of the present invention is shown;

[0037] Figure 2 A flowchart illustrating the preparation process of the present invention is shown;

[0038] Figure 3 An exploded view of the structure of the present invention is shown;

[0039] Figure 4 A three-dimensional structural cross-sectional view of the filling device of the present invention is shown;

[0040] Figure 5 A front view of the filling device of the present invention is shown;

[0041] Figure 6 A three-dimensional structural cross-sectional view of the positioning mechanism of the present invention is shown;

[0042] Figure 7 A schematic diagram of the installation structure of the drive mechanism of the present invention is shown;

[0043] Figure 8A schematic diagram of the mounting structure of the bracket of the present invention is shown;

[0044] Figure 9 A schematic diagram of the installation structure of the arc-shaped limiting plate of the present invention is shown;

[0045] Figure 10 A schematic diagram of the installation structure of the glue inlet tube of the present invention is shown;

[0046] Figure 11 A schematic diagram of the mounting structure of the self-locking spring nozzle of the present invention is shown;

[0047] The figure shows: 1. Tire body; 11. Perforation; 12. Cavity; 2. Sponge block; 21. Through-hole; 22. Fabric cover; 3. Base; 31. Slider; 4. Positioning mechanism; 41. Mounting plate; 42. Arc-shaped clamping plate; 43. Support plate; 44. Driving component; 441. Bidirectional threaded rod; 5. Limiting mechanism; 51. Bracket; 511. Guide rod; 512. Fourth electric actuator; 52. Mounting block; 53. First telescopic rod; 54. Connecting block; 55. First electric push rod; 56. Second telescopic rod; 57. Connecting plate; 571. Third electric push rod; 58. Second electric push rod; 59. Arc-shaped limiting plate; 591. Receiving cavity; 592. Glue outlet hole; 6. Drive mechanism; 61. Rotating shaft; 62. Electric motor; 63. Bevel gear assembly; 7. Glue spraying mechanism; 71. Self-locking spring nozzle; 72. Glue inlet tube; 8. Drive component; 81. Drive rod; 82. Electric motor. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0049] Example 1

[0050] To address the technical problems in the background section, the following is provided: a car tire filled with sponge and its manufacturing method:

[0051] Combination Figures 1-11As shown, the automobile tire filled with sponge provided by the present invention includes a tire body 1 and a sponge block 2; the tire body 1 has a through hole 11 for the wheel hub to pass through, and a cavity 12 communicating with the through hole 11 is constructed inside the tire body 1, and the sponge block 2 is inserted into the cavity 12; the sponge block 2 has a through opening 21, and a cloth sleeve 22 is sleeved on the outer wall of the sponge block 2 outside the through opening 21. When the sponge block 2 is inserted into the cavity 12, the through opening 21 and the through hole 11 are located in the same axial direction, and the cloth sleeve 22 is in contact with the inner wall of the cavity 12.

[0052] By utilizing the design of the cloth sleeve 22, which is fitted over the outside of the sponge block 2, after spraying glue onto the inner wall of the cavity 12, the sponge block 2 is inserted into the cavity 12. This allows the cloth sleeve 22 to bond with the glue sprayed on the inner wall of the cavity 12 when the sponge block 2 is filled into the cavity 12, thus avoiding the situation where the sponge block 2 is directly bonded to the inside of the cavity 12. When the tire body 1 is punctured, the cloth sleeve 22 can be separated from the tire body 1 to remove the sponge block 2, which facilitates the removal of the sponge block 2. At the same time, it avoids the situation where the sponge block 2 breaks at the bonding point with the tire body 1 during the removal of the sponge block 2, leaving some sponge block 2 inside the cavity 12, which would make cleaning inconvenient and make it difficult to repair the tire body 1.

[0053] Both the sponge block 2 and the cloth sleeve 22 are porous materials, allowing airflow to pass normally through the pores, thus not affecting the inflation and deflation of the tire. The sponge block 2 has excellent elasticity, and when the tire body 1 is compressed and then recovers, the sponge block 2 can also be compressed and recovered synchronously, ensuring effective filling within the tire body 1. In addition, the sponge block 2 can be disassembled by separating the cloth sleeve 22 from the tire body 1, preventing damage to the sponge block 2 and allowing it to be reused.

[0054] A method for manufacturing a car tire filled with sponge, using the aforementioned method for manufacturing a car tire filled with sponge, includes the following steps:

[0055] S1. Prepare raw materials: Prepare tire body 1, sponge block 2, cloth cover 22;

[0056] S2, Covering with fabric: Cover the fabric 22 onto the outer wall of the sponge block 2 and bond the fabric 22 to the sponge block 2;

[0057] S3. Apply adhesive: Apply adhesive to the inner wall of perforation 11;

[0058] S4. Filling: The sponge block 2 is filled into the cavity 12 by the filling equipment so that the sponge block 2 is bonded to the tire body 1;

[0059] S5. Limiting: Limiting the sponge block 2 so that the through opening 21 and the perforation 11 are located on the same axial direction;

[0060] S6. Rotation: To rotate the tire body 1.

[0061] In this embodiment, the filling device includes a base 3, a positioning mechanism 4, a limiting mechanism 5, and a driving mechanism 6. The positioning mechanism 4 is mounted on the base 3 and is used to position the tire body 1. The limiting mechanism 5 is mounted on the base 3 and is located directly above the positioning mechanism 4. When the sponge block 2 is inserted into the cavity 12, the limiting mechanism 5 is used to limit the sponge block 2 so that the through opening 21 and the perforation 11 are located on the same axial direction. The driving mechanism 6 is mounted on the base 3 and connected to the positioning mechanism 4. The driving mechanism 6 is used to drive the positioning mechanism 4 to rotate on the base 3.

[0062] In use, the tire body 1 is placed on the positioning mechanism 4, and the positioning mechanism 4 is used to position the tire body 1. After spraying glue into the cavity 12, the sponge block 2 is filled into the cavity 12, so that the cloth cover 22 fits against the inner wall of the cavity 12. The limiting mechanism 5 is used to limit the sponge block 2 so that the through hole 21 and the perforation 11 are in the same axial direction. Then, the positioning mechanism 4 is rotated on the base 3 by the driving mechanism 6, so that the tire body 1 rotates and drives the sponge block 2 to rotate, so that the sponge block 2 fits the tire body 1 more closely.

[0063] Example 2

[0064] like Figures 1-11 As shown, based on the above embodiments, this embodiment further provides the following:

[0065] In this embodiment, the positioning mechanism 4 includes a mounting plate 41 mounted on the base 3. Two arc-shaped clamping plates 42 are slidably mounted on the top of the mounting plate 41. The two arc-shaped clamping plates 42 are symmetrically arranged. Support plates 43 are fixed at the bottom positions on opposite sides of the two arc-shaped clamping plates 42. A driving member 44 is mounted on the mounting plate 41 to act on the two arc-shaped clamping plates 42, which is used to make the two arc-shaped clamping plates 42 move closer or further away from each other. The driving member 44 includes a bidirectional threaded rod 441 rotatably mounted on the mounting plate 41. The bidirectional threaded rod 441 is threadedly connected to both arc-shaped clamping plates 42.

[0066] When positioning the tire body 1, the tire body 1 is placed on the opposite sides of the two arc-shaped clamping plates 42 and on the two support plates 43. The bidirectional threaded rod 441 is rotated to bring the two arc-shaped clamping plates 42 closer to each other, so that both arc-shaped clamping plates 42 are in contact with the tire body 1, thereby achieving the positioning effect of the tire body 1.

[0067] In this embodiment, the limiting mechanism 5 includes a bracket 51 mounted on the base 3. A mounting block 52 is mounted on the bracket 51 and directly above the through hole 11. The mounting block 52 has a circular cross-section, and the center of the mounting block 52 is on the same axis as the center of the arc-shaped clamping plate 42. Four vertically oriented first telescopic rods 53 are fixedly mounted in a circular array at the bottom of the mounting block 52. A connecting block 54 is fixed to the telescopic end of the first telescopic rod 53. A first electric push rod 55 connected to the connecting block 54 is fixedly mounted on the mounting block 52. A horizontally oriented second telescopic rod 56 is fixedly mounted on the side of each of the four connecting blocks 54 that is far apart from each other. A connecting plate 57 is fixed to the telescopic end of the second telescopic rod 56. A second electric push rod 58 connected to the connecting plate 57 is fixedly mounted on the connecting block 54. An arc-shaped limiting plate 59 is mounted on the connecting plate 57, and the center of the arc-shaped limiting plate 59 is on the same axis as the center of the arc-shaped clamping plate 42.

[0068] In use, the sponge block 2 is inserted into the cavity 12. When the sponge block 2 is limited by the limiting mechanism 5, the four connecting blocks 54 are moved vertically downward along the four first telescopic rods 53 by the four first electric push rods 55, so that the four arc-shaped limiting plates 59 are all located inside the through opening 21. Then, the four connecting plates 57 are slid away from the connecting blocks 54 along the four second telescopic rods 56 by the four second electric push rods 58, so that the four arc-shaped limiting plates 59 are all in contact with the inner wall of the through opening 21, thus achieving the effect of limiting the sponge block 2.

[0069] In this embodiment, the drive mechanism 6 includes a vertically oriented shaft 61 rotatably mounted on the base 3, and a mounting plate 41 is rotatably mounted on the base 3 via the shaft 61; a motor 62 is fixedly mounted on the base 3, and the output shaft of the motor 62 is connected to the shaft 61 via a bevel gear assembly 63.

[0070] When in use, the control motor 62 is turned on, and the output shaft of the motor 62 rotates, which drives the rotating shaft 61 to rotate on the base 3 through the bevel gear assembly 63, so that the mounting plate 41 rotates, thus achieving the effect of rotating the tire body 1.

[0071] Example 3

[0072] like Figures 1-11 As shown, based on the above embodiments, this embodiment further provides the following:

[0073] In this embodiment, the arc-shaped limiting plate 59 is hinged to the connecting plate 57, and a third electric push rod 571 for driving the arc-shaped limiting plate 59 to rotate is installed on the connecting plate 57. A glue spraying mechanism 7 is installed on the free end of the arc-shaped limiting plate 59.

[0074] By designing the glue spraying mechanism 7, the tire body 1 is placed on opposite sides of the two arc-shaped clamping plates 42 and on the two support plates 43. Through the cooperation of the four first electric push rods 55 and the four second electric push rods 58, the four arc-shaped limiting plates 59 are all located inside the cavity 12. The four third electric push rods 571 cause the four arc-shaped limiting plates 59 to rotate on the four connecting plates 57 respectively, so that the free ends of the arc-shaped limiting plates 59 are away from the connecting plates 57. At this time, glue is sprayed into the cavity 12 by the glue spraying mechanism 7. Then, the tire body 1 is rotated by the motor 62, which can achieve the effect of spraying glue into the cavity 12, making it convenient to spray glue into the cavity 12 and reducing the workload of the workers.

[0075] In this embodiment, the glue spraying mechanism 7 includes: multiple self-locking spring nozzles 71; an arc-shaped limiting plate 59 has a receiving cavity 591; multiple glue outlet holes 592, each communicating with the receiving cavity 591, are opened at the free end of the arc-shaped limiting plate 59; multiple self-locking spring nozzles 71 are respectively fixedly installed in multiple glue outlet holes 592; and a glue inlet pipe 72, communicating with the receiving cavity 591, is fixedly installed on the arc-shaped limiting plate 59. The glue inlet pipe 72 is connected to an external glue delivery pump.

[0076] In use, glue is supplied to the glue inlet pipe 72 by an external glue delivery pump. The glue is delivered to the receiving cavity 591 through the glue inlet pipe 72. After entering the receiving cavity 591, the glue flows to multiple glue outlet holes 592 and comes into contact with multiple self-locking spring nozzles 71. This causes the springs of the self-locking spring nozzles 71 to deform, opening the self-locking spring nozzles 71 and thus spraying out the glue. When no glue is supplied to the receiving cavity 591, the springs of the self-locking spring nozzles 71 return to their natural state, and the self-locking spring nozzles 71 close, preventing glue from overflowing.

[0077] Example 4

[0078] like Figures 1-11 As shown, based on the above embodiments, this embodiment further provides the following:

[0079] In this embodiment, two sliders 31 are slidably mounted on the base 3. The longitudinal section of the bracket 51 is inverted U-shaped. The two ends of the bracket 51 are fixedly connected to the two sliders 31 respectively. A driving component 8 connected to one of the sliders 31 is installed on the base 3, which is used to make the slider 31 slide on the base 3. A guide rod 511 is vertically movably inserted through the bracket 51. The mounting block 52 is mounted on the bracket 51 through the guide rod 511. A fourth electric push rod 512 connected to the mounting block 52 is fixedly installed on the bracket 51.

[0080] By utilizing the design of slider 31 and drive component 8, slider 31 can slide on base 3, allowing bracket 51 to slide to one side of base 3. The fourth electric push rod 512 moves mounting block 52 vertically downward. With the cooperation of the first electric push rod 55 and the second electric push rod 58, the arc-shaped limiting plate 59 can be inserted into the cavity 12 of tire body 1. With the cooperation of drive component 8 and fourth electric push rod 512, tire body 1 can be placed on the two support plates 43 on opposite sides of the two arc-shaped clamping plates 42. This achieves the effect of loading tire body 1 placed on the ground, facilitating the loading of tire body 1 and saving the labor of workers.

[0081] In this embodiment, the driving component 8 includes a driving rod 81 rotatably mounted on the base 3, the driving rod 81 being threadedly connected to the slider 31, and a motor 82 connected to the driving rod 81 being fixedly mounted on the base 3.

[0082] When in use, the control motor 82 is turned on, and the output shaft of the motor 82 rotates, which drives the drive rod 81 to rotate on the base 3. The slider 31 is threadedly connected to the drive rod 81, so that the slider 31 can slide on the base 3, which is convenient for control.

[0083] Working principle and usage process of this invention:

[0084] When filling the cavity 12 of the tire body 1 with sponge block 2:

[0085] First, based on the size of the tire body 1, rotate the bidirectional threaded rod 441 to bring the two arc-shaped clamping plates 42 closer to each other, so that the distance between the two arc-shaped clamping plates 42 is the same as the diameter of the tire body 1.

[0086] The control motor 82 causes the drive rod 81 to rotate on the base 3, which in turn causes the slider 31 to slide on the base 3, so that the bracket 51 is located on one side of the base 3. The fourth electric push rod 512 is used to move the mounting block 52 vertically downward. Then, through the cooperation of the first electric push rod 55 and the second electric push rod 58, the arc-shaped limiting plate 59 can be inserted into the cavity 12 of the tire body 1. Then, through the cooperation of the drive component 8 and the fourth electric push rod 512, the tire body 1 can be placed on the two support plates 43 on opposite sides of the two arc-shaped clamping plates 42. This achieves the effect of loading the tire body 1 placed on the ground, which is convenient for loading the tire body 1 and saves the labor of the workers.

[0087] After the tire body 1 is loaded, the arc-shaped limiting plate 59 is located in the cavity 12. The four arc-shaped limiting plates 59 are rotated on the four connecting plates 57 by the four third electric push rods 571, so that the free end of the arc-shaped limiting plate 59 is away from the connecting plate 57. This makes the self-locking spring nozzle 71 close to the inner wall of the cavity 12. The glue is delivered to the glue inlet pipe 72 by the external glue delivery pump. The glue is delivered to the receiving cavity 591 through the glue inlet pipe 72. After the glue enters the receiving cavity 591, it flows to multiple glue outlet holes 592 and contacts multiple self-locking spring nozzles 71, pushing the spring of the self-locking spring nozzle 71 to deform, so that the self-locking spring nozzle 71 opens, thus realizing the spraying of glue into the cavity 12. Then, the tire body 1 is rotated by the electric motor 62, thus realizing the effect of spraying glue into the cavity 12. This facilitates the spraying of glue into the cavity 12 and reduces the workload of the workers.

[0088] After the adhesive is sprayed, the arc-shaped limiting plate 59 is rotated and reset on the connecting plate 57 by the four third electric push rods 571. Then, by the cooperation of the four first electric push rods 55 and the four second electric push rods 58, the four arc-shaped limiting plates 59 are moved to the top of the through hole 21, applying force to the sponge block 2 and deforming it, placing it between the opposite sides of the four connecting blocks 54. Then, the four first electric push rods 55 are used to move the four connecting blocks 54 down to the through hole 11. The two symmetrical first electric push rods 55 are used to move the two connecting blocks 54 up, canceling the restriction of the two connecting blocks 54 on the sponge block 2. The sponge block 2 returns to its natural state and can be inserted into the cavity 12. Then, the two other symmetrical first electric push rods 55 are used to move the two connecting blocks 54 up, canceling the restriction of the two connecting blocks 54 on the sponge block 2, so that the sponge block 2 can be completely filled into the cavity 12.

[0089] After filling, the four connecting blocks 54 are moved vertically downward along the four first telescopic rods 53 by the four first electric push rods 55, so that the four arc-shaped limiting plates 59 are all located inside the through opening 21. Then, the four connecting plates 57 are slid away from the connecting blocks 54 by the four second electric push rods 58, so that the four arc-shaped limiting plates 59 are all in contact with the inner wall of the through opening 21, achieving the effect of limiting the sponge block 2. Then, the motor 62 is turned on, and the output shaft of the motor 62 rotates, which drives the rotating shaft 61 to rotate on the base 3 through the bevel gear assembly 63, so that the mounting plate 41 rotates, so that the tire body 1 rotates, and drives the sponge block 2 to rotate, so that the sponge block 2 is more in contact with the tire body 1.

[0090] During the unloading process, four second electric push rods 58 are used to ensure that the four arc-shaped limiting plates 59 are all located in the cavity 12. Then, the fourth electric push rod 512 is used to move the mounting block 52 upward along the guide rod 511, so that the tire body 1 is moved above the two arc-shaped clamping plates 42. Then, the motor 82 is used to make the drive rod 81 rotate on the base 3, so that the bracket 51 is located on one side of the base 3. With the cooperation of the fourth electric push rod 512, the tire body 1 can be placed on the ground, thus achieving the unloading effect of the tire body 1.

[0091] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0092] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for manufacturing a car tire filled with sponge, characterized in that: The manufacturing method includes the following steps: S1. Prepare raw materials: Prepare tire body, sponge block, and cloth cover; The tire body has a perforation for the wheel hub to pass through, and the tire body has a cavity connected to the perforation. A sponge block is inserted into the cavity. The sponge block has a through-hole, and a cloth sleeve is fitted on the outer wall of the sponge block outside the through-hole. When the sponge block is inserted into the cavity, the through-hole and the perforation are located on the same axial direction, and the cloth sleeve is in contact with the inner wall of the cavity. S2. Covering with fabric: Place the fabric cover on the outer wall of the sponge block and bond the fabric cover to the sponge block. S3. Apply adhesive: Apply adhesive to the inner wall of the perforation; S4. Filling: The sponge block is filled into the cavity using a filling device to bond the sponge block to the tire body; S5. Limiting: Limiting the sponge block so that the through opening and the perforation are on the same axial direction; S6. Rotation: To rotate the tire body; The filling device includes a base, a positioning mechanism, a limiting mechanism, and a driving mechanism; The positioning mechanism is mounted on the base and is used to position the tire body. The limiting mechanism is installed on the base and is located directly above the positioning mechanism. When the sponge block is inserted into the cavity, the limiting mechanism is used to limit the sponge block so that the through opening and the perforation are in the same axial direction. The drive mechanism is mounted on the base and connected to the positioning mechanism. The drive mechanism is used to drive the positioning mechanism to rotate on the base. The positioning mechanism includes a mounting plate installed on a base. Two arc-shaped clamping plates are slidably mounted on the top of the mounting plate. The two arc-shaped clamping plates are symmetrically arranged. Support plates are fixed at the bottom positions on opposite sides of the two arc-shaped clamping plates. A driving element that acts on the two arc-shaped clamping plates is installed on the mounting plate to make the two arc-shaped clamping plates move closer to or further away from each other. The driving component includes a bidirectional threaded rod rotatably mounted on the mounting plate, and the bidirectional threaded rod is threadedly connected to both arc-shaped clamping plates. The limiting mechanism includes a bracket mounted on a base. A mounting block is mounted on the bracket and directly above the perforation. The mounting block has a circular cross-section, and the center of the mounting block and the center of the arc-shaped clamping plate are on the same axis. Four vertically oriented first telescopic rods are fixedly mounted in a circular array at the bottom of the mounting block. A connecting block is fixed to the telescopic end of each first telescopic rod. A first electric push rod connected to the connecting block is fixedly mounted on the mounting block. A horizontally oriented second telescopic rod is fixedly mounted on the side of each of the four connecting blocks that is far apart from each other. A connecting plate is fixed to the telescopic end of each second telescopic rod. A second electric push rod connected to the connecting plate is fixedly mounted on the connecting block. An arc-shaped limiting plate is mounted on the connecting plate, and the center of the arc-shaped limiting plate and the center of the arc-shaped clamping plate are on the same axis. The arc-shaped limiting plate is hinged to the connecting plate, and a third electric push rod for driving the arc-shaped limiting plate to rotate is installed on the connecting plate. A glue spraying mechanism is installed on the free end of the arc-shaped limiting plate. The glue spraying mechanism includes: multiple self-locking spring nozzles; an arc-shaped limiting plate with a receiving cavity; multiple glue outlet holes connected to the receiving cavity at the free end of the arc-shaped limiting plate; multiple self-locking spring nozzles fixedly installed in the multiple glue outlet holes; and a glue inlet pipe connected to the receiving cavity fixedly installed on the arc-shaped limiting plate.

2. The method for manufacturing a car tire filled with sponge according to claim 1, characterized in that: The drive mechanism includes a vertically oriented shaft that is rotatably mounted on a base, and a mounting plate that is rotatably mounted on the base via the shaft; a motor is fixedly mounted on the base, and the output shaft of the motor is connected to the shaft via a bevel gear assembly.

3. The method for manufacturing a car tire filled with sponge according to claim 1, characterized in that: Two sliders are slidably mounted on the base. The longitudinal section of the bracket is inverted U-shaped. The two ends of the bracket are fixedly connected to the two sliders respectively. A driving component connected to one of the sliders is installed on the base, which is used to make the slider slide on the base. A guide rod moves vertically through the bracket, and the mounting block is mounted on the bracket via the guide rod. A fourth electric actuator connected to the mounting block is fixedly mounted on the bracket.

4. The method for manufacturing a car tire filled with sponge according to claim 3, characterized in that: The driving component includes a driving rod rotatably mounted on the base, the driving rod being threadedly connected to the slider, and a motor connected to the driving rod being fixedly mounted on the base.

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