Supporting and pressing device and method, and silent tire production system containing the supporting and pressing device

Abstract

The present invention provides a supporting and pressing device for pressing a silent sponge on the inner wall of a tire. The device mainly comprises a tire carrier with a hollow structure, an upper supporting and pressing device with a plurality of retractable first supporting and pressing elements, a lower supporting and pressing device with a plurality of retractable second supporting and pressing elements, and a tire centering device. The upper supporting and pressing device is arranged above the tire carrier, and the lower supporting and pressing device is arranged below the tire carrier. The upper supporting and pressing device, the lower supporting and pressing device, and at least two devices on the tire carrier are movably arranged. The device has a structure and positional relationship in which the plurality of retractable first supporting and pressing elements and the plurality of retractable second supporting and pressing elements are sequentially operated to form a continuous or discontinuous annular supporting and pressing surface to apply pressure to the silent sponge on the inner wall of the tire. The silent sponge and the adhesive can be tightly pressed together in a single pressing action. The device has the advantages of high silent sponge pressing efficiency and good pressing quality.

Description

Technical Field

[0001] The present invention relates to the field of auxiliary equipment for silent tire production, and in particular to a pressing device (also called a pressing device) that can evenly and fully bond a strip-shaped silent sponge or a plurality of tile-shaped silent sponges to an adhesive on the inner wall of a tire through a single pressing operation. Background Art

[0002] In the prior invention patent application document No. 202210230153X published on June 28, 2022, the applicant had developed a pressing device for silent sponge on the inner wall of a tire. However, multiple pressing actions are required when using the pressing device to press the strip-shaped silent sponge. That is, after one pressing, the pressing head assembly must be rotated a certain angle and then pressed again or multiple times to fully bond the silent sponge to the adhesive. Therefore, there is room for improvement in the efficiency of the silent sponge support and pressing.

[0003] Furthermore, the silent sponges installed in existing silent tires are primarily divided into two types: strip-shaped silent sponges (such as the entire silent sponge structure disclosed in the applicant's invention patent application No. 202210230153X) and tile-shaped silent sponges (such as the multi-piece silent sponge assembly structure disclosed in Pirelli Tire Co., Ltd.'s invention patent document No. 2015800572696). When the laminating device disclosed in the applicant's patent application No. 202210230153X assembles the silent sponges, there is a risk of warping at the leading and / or trailing ends of the strip-shaped silent sponges. Since a multi-piece silent sponge assembly structure has multiple leading and trailing ends, the risk of warping at the leading and / or trailing ends is particularly significant in a multi-piece silent sponge assembly structure. Furthermore, this warping of the leading and / or trailing ends may cause the silent sponges to shift, thereby affecting the quality of the silent sponge's fit. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a supporting and pressing device for pressing the silent sponge on the inner wall of a tire, including a frame for setting various components, and also including a tire carrier with a hollow structure, an upper supporting and pressing device with a plurality of retractable first supporting and pressing elements, a lower supporting and pressing device with a plurality of retractable second supporting and pressing elements, and a tire centering device; wherein, the upper supporting and pressing device is arranged above the tire carrier, and the lower supporting and pressing device is arranged below the tire carrier, and at least two of the upper supporting and pressing device, the lower supporting and pressing device and the tire carrier are movably arranged.

[0005] Preferably, in the silent sponge state of supporting the inner wall of the tire, the plurality of first supporting elements and the plurality of second supporting elements are arranged at intervals, and the outer surfaces of the first supporting elements and the outer surfaces of the second supporting elements form a discontinuous annular supporting surface.

[0006] Preferably, in the silent sponge state of supporting the inner wall of the tire, the plurality of first supporting elements and the plurality of second supporting elements are arranged at intervals; wherein, the two ends of the first supporting element are arranged as first teeth, and the two ends of the second supporting element are arranged as second teeth, and the first teeth and the second teeth are arranged to cross and overlap, and the outer surface of the first supporting element and the outer surface of the second supporting element form a continuous annular supporting surface.

[0007] Preferably, the tire carrier includes a support leg, a fixed plate arranged on the support leg, and a plurality of synchronously rolling rollers arranged above the fixed plate; wherein the middle parts of the fixed plate and the rollers are both arranged as hollow structures, and a plurality of tire supporting devices are arranged around the hollow structure of the fixed plate.

[0008] Preferably, the frame includes a longitudinal frame, the upper supporting and pressing device and the lower supporting and pressing device are both movably arranged on the longitudinal frame, and the tire centering device is arranged on the longitudinal frame or the tire carrier.

[0009] Preferably, the frame includes a longitudinal frame, the upper supporting and pressing device is movably arranged on the longitudinal frame, the tire carrier is movably arranged to be raised and lowered, and the tire centering device is arranged on the longitudinal frame or the tire carrier.

[0010] Preferably, the frame includes a longitudinal frame, the lower supporting and pressing device is movably arranged on the longitudinal frame, the tire carrier is movably arranged to be raised and lowered, and the tire centering device is arranged on the longitudinal frame or the tire carrier.

[0011] Preferably, the frame includes a longitudinal frame and a transverse frame, the upper supporting and pressing device can be movably set on the longitudinal frame or the transverse frame, the lower supporting and pressing device can be movably set on the longitudinal frame or independently set, and the tire centering device is set on the longitudinal frame or the transverse frame or the tire carrier.

[0012] Preferably, the frame includes a longitudinal frame and a transverse frame, the upper support and pressure device is movably arranged on the longitudinal frame or the transverse frame, the tire carrier is movably arranged to be raised and lowered, and the tire centering device is arranged on the longitudinal frame or the transverse frame or the tire carrier.

[0013] Preferably, the frame includes a longitudinal frame and a transverse frame, the lower support and pressure device can be movably arranged on the longitudinal frame or independently arranged, the tire carrier can be movably arranged to be raised and lowered, and the tire centering device is arranged on the longitudinal frame or the transverse frame or the tire carrier.

[0014] The present invention also discloses a silent tire production system, including a gluing device for coating adhesive on the inner wall of the tire, and a silent sponge laminating device for applying strip-shaped silent sponges or several tile-shaped silent sponges on the inner wall of the tire, which also includes any of the supporting and pressing devices described above.

[0015] The present invention also discloses a method for pressing a silent sponge on the inner wall of a tire, providing a tire with an adhesive coated on the inner wall of the tire, and a strip-shaped silent sponge or a plurality of tile-shaped silent sponges that are initially adhered to the adhesive and have a length approximately the same as the inner circumference of the tire, and providing a pressing device as described above, the pressing method includes the following steps: first, contracting a plurality of first pressing elements or a plurality of second pressing elements and placing them in a pressing position in the middle of the tire, and then simultaneously extending the plurality of first pressing elements or a plurality of second pressing elements toward the inner wall of the tire and moving them to a first position, forming a spacing space between adjacent first pressing elements or second pressing elements; and then, placing the plurality of second pressing elements or A number of first supporting elements are retracted and placed at the supporting position in the middle of the tire, and a number of second supporting elements or a number of first supporting elements are synchronously extended toward the inner wall of the tire and moved to the spacing space at the first position, so as to form a number of first supporting elements and a number of second supporting elements spaced apart and distributed at the first position; then the number of first supporting elements and a number of second supporting elements located at the first position are synchronously extended toward the inner wall of the tire, so as to apply pressure to the strip-shaped silent sponge or a number of tile-shaped silent sponges on the inner wall of the tire through the continuous or discontinuous annular supporting surface formed by the outer surface of the first supporting element and the outer surface of the second supporting element, so that the silent sponge is tightly pressed against the adhesive. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the initial state of the supporting and pressing device of the present invention.

[0017] Figure 2 Schematic diagram of a plurality of first supporting and pressing elements in the supporting and pressing device of the present invention in a first position.

[0018] Figure 3 This is a schematic diagram of a plurality of first supporting and pressing elements and a plurality of second supporting and pressing elements in the supporting and pressing device of the present invention being in the first position or supporting and pressing the silent sponge.

[0019] Figure 4 for Figure 1 Schematic diagram from another perspective.

[0020] Figure 5 Schematic diagram of the components of the supporting and pressing device of the present invention.

[0021] Figure 6 Schematic diagram of the tire centering device.

[0022] Figure 7 for Figure 6 Schematic diagram from another perspective.

[0023] Figure 8 Schematic diagram of the tire carrier in the supporting and pressing device of the present invention.

[0024] Figure 9 for Figure 8 Schematic diagram of the middle cylinder and several Furley wheels.

[0025] Figure 10 It is a schematic diagram of the upper supporting and pressing device or the lower supporting and pressing device in the supporting and pressing device of the present invention.

[0026] Figure 11 This is a schematic diagram of the first supporting and pressing elements of the present invention being retracted and moved to the middle supporting and pressing position of the tire.

[0027] Figure 12 This is a schematic diagram of a plurality of first supporting and pressing elements synchronously extending toward the inner wall of the tire and moving to the first position.

[0028] Figure 13 This is a schematic diagram showing that a plurality of second supporting elements are retracted and moved to the middle supporting position of the tire.

[0029] Figure 14 This is a schematic diagram of a plurality of second supporting and pressing elements synchronously extending toward the inner wall of the tire and moving to the first position.

[0030] Figure 15 This is a schematic diagram of a plurality of first supporting and pressing elements and a plurality of second supporting and pressing elements at a first position synchronously extending and pressing the silent sponge toward the inner wall of the tire. Implementation Method

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the drawings.

[0032] See also Figures 1 to 10The present invention discloses a support and pressure device 1 for pressing a silent sponge on the inner wall of a tire, which includes a frame 10 for arranging various functional components, a tire carrier 20 provided with a hollow structure 21, an upper support and pressure device 30 provided with a plurality of retractable first support and pressure elements 31, a lower support and pressure device 40 provided with a plurality of retractable second support and pressure elements 41, and a tire centering device 50; wherein, the upper support and pressure device 30 is arranged above the tire carrier 20, and the lower support and pressure device 40 is arranged below the tire carrier 20. 0, and at least two of the upper supporting device 30, the lower supporting device 40 and the tire carrier 20 are movably arranged, for example, the upper supporting device 30 and the lower supporting device 40 can both be moved relative to the tire carrier 20, or the lower supporting device 40 and the tire carrier 20 can both be moved relative to the upper supporting device 30, or the upper supporting device 30 and the tire carrier 20 can both be moved relative to the lower supporting device 40, or the upper supporting device 30, the lower supporting device 40 and the tire carrier 20 can all be movably arranged.

[0033] In this embodiment, only the tire carrier 20 is fixed, and both the upper supporting and pressing device 30 and the lower supporting and pressing device 40 can move relative to the tire carrier 20 as a preferred example for description.

[0034] like Figures 1 to 5 As shown, the frame 10 of the present invention includes a longitudinal frame 11 and a transverse frame 12. The upper supporting and pressing device 30 is movably arranged on the longitudinal frame 11, the lower supporting and pressing device 40 is movably arranged on the longitudinal frame 11, and the tire centering device is arranged on the transverse frame 12. In this embodiment, in order to reduce the height space occupied by the supporting and pressing devices and simplify the structural design, the upper supporting and pressing device 30 and the lower supporting and pressing device 40 can be arranged on the longitudinal frame 11 on the same side (such as Figures 1 to 3 On the left longitudinal frame 11 shown in the figure, the upper supporting and pressing device 30 is fixed on the upper slide arm 321 of the upper slide 32, and the longitudinal frame 11 is provided with a slide rail 111, and the upper slide 32 can be movably set on the upper half of the slide rail 111 through a slider (not shown); the lower supporting and pressing device 40 is fixed on the lower frame arm 421 of the lower slide frame 42, and the lower slide frame 42 can be movably set on the lower half of the slide rail 111 through a slider (not shown).

[0035] In addition, if Figure 3 and Figure 4As shown, the longitudinal frame 11 of the present invention is provided with a fixed plate 112, and an upper slide driver 33 (such as a servo motor) is fixedly provided on the fixed plate 112. The driving end of the upper slide driver 33 is provided with an upper slide screw 34. The end 341 of the upper slide screw 34 is fixedly provided with the upper slide 32. The upper slide driver 33 drives the upper slide screw 34 to drive the upper slide 32 to move back and forth on the upper half of the slide rail 111 on the longitudinal frame 11, thereby realizing the upper support and pressure device 30 on the slide rail 111 of the longitudinal frame 11. The upper part moves back and forth; similarly, a lower slide frame driver 43 (such as a servo motor) is fixedly provided on the fixed plate 112, and a lower slide frame screw 44 is provided at the driving end of the lower slide frame driver 43, and the end 441 of the lower slide frame screw 44 is fixedly provided with the lower slide frame 42, so that the lower slide frame driver 43 drives the lower slide frame screw 44 to drive the lower slide frame 42 to move back and forth on the lower half of the slide rail 111 on the longitudinal frame 11, thereby realizing the reciprocating movement of the lower support and pressing device 40 on the lower half of the slide rail 111 on the longitudinal frame 11.

[0036] like Figures 5 to 7As shown, the tire centering device 50 of the present invention includes a centering driver 51 (e.g., a cylinder), a centering linkage mechanism (e.g., a gear and rack structure or a synchronous belt and pulley structure), and a plurality of centering elements 52 (rollers). The driving end 511 of the centering driver 51 is connected to the centering linkage mechanism, which is in turn connected to the plurality of centering elements 52. The centering driver 51, via the centering linkage mechanism, can drive the plurality of centering elements 52 to move synchronously (i.e., synchronously contract or synchronously extend). Specifically, when the tire 100 is transferred to a predetermined position on the tire carrier 20, the centering driver 51 can drive the plurality of centering elements 52 to synchronously contract, thereby centering and securing the tire 100, thereby achieving tire centering and securing functions. Furthermore, the tire centering device 50 can also be provided with a rotational drive mechanism 53 (e.g., a servo motor), which can drive one or more centering elements 52 to actively rotate, thereby driving the tire 100 to rotate through the rotation of the centering elements 52. In this embodiment, the centering linkage mechanism adopts a synchronous belt 59 and a synchronous pulley structure 591, and the plurality of centering elements 52 and the rotating drive mechanism 53 are fixedly arranged on the connecting plate 54, and the connecting plate 54 is fixedly connected to the centering slide 56 via the centering bracket 55. A centering slide rail 57 is provided on the transverse frame 12, and the centering driver 51 and the synchronous pulley structure 591 are arranged on the transverse frame 12. The centering slide 56 can be movably arranged on the centering slide rail 57 via a centering slider (not shown), and the driving end 511 of the centering driver 51 is fixedly connected to one of the centering slides 56, and the centering slide 56 is fixedly connected to the synchronous belt 59 via the pressure plate 58. Therefore, when the centering driver 51 drives the centering slide 56 connected to it to move, under the action of the synchronous belt 59 and the synchronous pulley structure 591, the other centering slide 56 moves synchronously in the opposite direction, thereby realizing the synchronous contraction (i.e. centering and fixing the tire) or synchronous extension (i.e. releasing the tire) of several centering elements 52 on both sides.

[0037] like Figures 8 and 9As shown, the tire carrier 20 of the present invention includes a plurality of legs 22, a fixed plate 23 arranged on the legs 22, and a plurality of rollable rollers 24 arranged above the fixed plate 23; wherein, the middle positions of the fixed plate 23 and the rollers 24 are both set as a hollow structure 21, and a plurality of (such as four groups) tire supporting devices are arranged on the circumference of the hollow structure 21 of the fixed plate 23, and the tire supporting device can be a cylinder 25 and a plurality of Furley wheels 26 connected to the driving end of the cylinder 25, and the cylinder 25 can drive the plurality of Furley wheels 26 to telescopically move. When the four groups of several Furley wheels 26 are driven to extend, that is, when the four groups of several Furley wheels 26 protrude from the plane of the rollers 24 on the tire carrier 20, the tire 100 can be lifted upward. At this time, when the tire is centered by the tire centering device 50, the several Furley wheels 26 can center the tire without friction, avoiding deformation of the tire due to friction between the tire sidewall and the platform surface when the tire is centered on a conventional flat platform, thereby affecting the fitting quality of the subsequent silent sponge.

[0038] like Figure 10 As shown, the upper supporting and pressing device 30 or the lower supporting and pressing device 40 of the present invention have the same structure, and only the installation method and installation position are different. The following description will only take the upper supporting and pressing device 30 as an example. The upper supporting and pressing device 30 described in the present invention includes a supporting and pressing main board provided with multiple extension parts. In this embodiment, a supporting and pressing main board 35 with four extension parts 351 arranged in a cross structure is adopted. A supporting and pressing driver 36 (such as a servo motor) and a mounting seat 37 are provided on one side of the supporting and pressing main board 35, and a supporting and pressing slide rail 352, a slide 353 provided with a supporting and pressing slider 3531 and a supporting and pressing linkage mechanism (such as a gear and rack structure or a synchronous belt and synchronous pulley structure, etc.) are provided on the four extension parts 351 on the same side of the mounting seat 37. The supporting and pressing linkage mechanism in this embodiment adopts a linkage structure of the same supporting and pressing synchronous belt 38 and four supporting and pressing synchronous pulleys 381. The supporting and pressing synchronous belt 38 is arranged into a cross structure matching the supporting and pressing main board 35 through four tensioning guide shafts 382; a plurality of first supporting and pressing elements 31 are provided on the other side of the supporting and pressing main board 35, and the first supporting and pressing elements 31 are respectively fixedly connected to the slide 353 provided with the supporting and pressing slider 3531. Therefore, when the supporting and pressing driver 36 drives the supporting and pressing synchronous belt 38 to move, the four supporting and pressing synchronous pulleys 381 move synchronously along the supporting and pressing slide rails 352 to move in a telescopic or extended manner, thereby driving the first supporting and pressing elements 31 to move in a telescopic or extended manner. Figure 13The dotted line shows a cross-shaped arrangement), so when the silent sponge on the inner wall of the tire is being pressed, the plurality of first supporting and pressing elements 31 and the plurality of second supporting and pressing elements 41 are spaced apart, and the outer surface of the first supporting and pressing element 31 and the outer surface of the second supporting and pressing element 41 form a discontinuous annular supporting surface (because the first supporting and pressing element 31 and the second supporting and pressing element 41 are spaced apart, there is a spacing space between the first supporting and pressing element 31 and the second supporting and pressing element 41 when the silent sponge is being pressed), so that the pressing action of the silent sponge can be completed by one-time pressing. This structure is more suitable for the pressing operation of strip-shaped silent sponges; for the case where there are multiple head ends and tail ends in the combined structure of multiple silent sponges, preferably, the applicant sets the first supporting and pressing element 31 and the second supporting and pressing element 41 to have tooth structures at both ends, Therefore, in the state of supporting the silent sponge on the inner wall of the tire, the several first supporting and pressing elements 31 and the several second supporting and pressing elements 41 are arranged at intervals; wherein, the two ends of the first supporting and pressing element 31 are set as the first teeth 311, and the two ends of the second supporting and pressing element 41 are set as the second teeth 411, and the first teeth 311 and the second teeth 411 are arranged to cross and overlap to form a closed circular ring. The outer surface of the first supporting and pressing element 31 and the outer surface of the second supporting and pressing element 41 form a continuous circular ring supporting surface under the action of the crossed and overlapping first teeth 311 and the second teeth 411, so as to realize the pressing action of the strip-shaped silent sponge or multiple pieces of silent sponges by one supporting and pressing, and overcome the technical problem of the head end and / or tail end of various silent sponges being curled up, thereby improving the fitting quality of the silent sponge.

[0039] like Figures 11 to 15 As shown, the present invention discloses a method for pressing a silent sponge on the inner wall of a tire, providing a tire 100 and coating the inner wall of the tire with an adhesive (not shown), the adhesive can be a common adhesive or an adhesive with a self-repairing function, and a strip-shaped silent sponge 200 or a plurality of tile-shaped silent sponges (not shown) having a length substantially the same as the inner circumference of the tire, which is initially adhered to the adhesive, and providing the aforementioned pressing device 1. The pressing method comprises the following steps: Figure 11 As shown, the first supporting and pressing elements 31 are first retracted and moved to the supporting and pressing position in the middle of the tire (i.e., the position where the outer surface of the first supporting and pressing element 31 or the second supporting and pressing element 41 corresponds to the silent sponge on the inner wall of the tire) under the drive of the upper carriage driver 33; Figure 12 As shown, the plurality of first supporting and pressing elements 31 are then synchronously extended toward the inner wall of the tire and moved to the first position (i.e., after the plurality of first supporting and pressing elements 31 are synchronously extended, the spacing between adjacent first supporting and pressing elements 31 can accommodate the position of the second supporting and pressing element 41), forming a spacing between adjacent first supporting and pressing elements or second supporting and pressing elements; as shown in FIG. Figure 13As shown, the second supporting and pressing elements 41 are retracted and moved to the supporting and pressing position in the middle of the tire; Figure 14 As shown, the plurality of second supporting and pressing elements 41 are synchronously extended toward the inner wall of the tire and similarly moved to the spacing space at the first position, so as to form a plurality of first supporting and pressing elements 31 and a plurality of second supporting and pressing elements 41 spaced apart and distributed at the first position; Figure 15 As shown, the first and second supporting elements 31 and 41 located at the first position are then synchronously extended toward the inner wall of the tire, so that the outer surfaces of the first and second supporting elements 31 and 41 form a continuous or discontinuous annular supporting surface to apply pressure to the strip-shaped silent sponge or the tile-shaped silent sponge on the inner wall of the tire, so that the silent sponge and the adhesive are tightly pressed together. Specifically, when the first and second supporting elements 31 and 41 are configured as arcs, a discontinuous annular supporting surface is formed; when the first and second supporting elements 31 and 41 are configured as tooth-like structures, a continuous annular supporting surface is formed. Figure 14 The plurality of A portions are schematic diagrams of the cross-over and overlap of the tooth-shaped structures of the first supporting and pressing element 31 and the plurality of second supporting and pressing elements 41 .

[0040] The aforementioned Figures 11 to 15 The supporting and pressing method shown is that the upper supporting and pressing device 30 is actuated first, and then the lower supporting and pressing device 40 is actuated. Of course, the opposite action steps can also be used, that is, first, a plurality of second supporting and pressing elements 41 are contracted and moved to the supporting and pressing position in the middle of the tire through the hollow structure 21 in the tire carrier 20, and then a plurality of second supporting and pressing elements 41 are synchronously extended toward the inner wall of the tire and moved to the first position; then a plurality of first supporting and pressing elements 31 are contracted and moved to the supporting and pressing position in the middle of the tire, and a plurality of first supporting and pressing elements 31 are synchronously extended toward the inner wall of the tire and moved to the first position, so as to form a plurality of first supporting and pressing elements 31 and a plurality of second supporting and pressing elements 41 distributed at intervals in the first position; then a plurality of first supporting and pressing elements 31 and a plurality of second supporting and pressing elements 41 located at the first position are synchronously extended toward the inner wall of the tire, so as to apply pressure to the strip-shaped silent sponge or a plurality of tile-shaped silent sponges on the inner wall of the tire through the continuous or discontinuous annular supporting surface formed by the outer surface of the first supporting and pressing element 31 and the outer surface of the second supporting and pressing element 41, so that the silent sponge is tightly pressed against the adhesive.

[0041] The above description assumes that the tire platform 20 is fixed, and both the upper supporting and pressing device 30 and the lower supporting and pressing device 40 are movable relative to the tire platform 20. Alternatively, the tire inner wall silent sponge supporting and pressing method of the present invention may also involve the tire platform 20 being moved to retract and position the plurality of second supporting and pressing elements 41 in the center of the tire and / or to retract and position the plurality of first supporting and pressing elements 31 in the center of the tire.

[0042] In addition, as a modified embodiment, the upper support and pressure device 30 of the present invention can be movably arranged on the horizontal frame 12 or can be movably arranged on the longitudinal frame 11 on the different side of the lower support and pressure device 40 (such as Figures 1 to 3 The lower support and pressing device 40 is movably disposed on the base 13 of the frame 10 (as shown in the attached Figure 2 The tire centering device 50 may be provided on the longitudinal frame 11 or on the transverse frame 12 or on the tire carrier 20.

[0043] As another embodiment, the frame 10 includes a longitudinal frame 11 and a transverse frame 12, the upper supporting and pressing device 30 is movably arranged on the longitudinal frame 11 or the transverse frame 12, the tire carrier 20 is arranged as a movable structure that can be raised and lowered (such as the support legs can be raised and lowered or the fixed plate 23 and the roller 24 can be raised and lowered synchronously), and the tire centering device 50 is arranged on the longitudinal frame 11 or the transverse frame 12 or the tire carrier 20.

[0044] As another embodiment, the frame 10 includes a longitudinal frame 11 and a transverse frame 12, the lower support and pressure device 40 is movably set on the longitudinal frame 11 or is set as an independent retractable structure, the tire carrier 20 is set as a movable structure that can be raised and lowered (such as the support legs can be raised and lowered or the fixed plate 23 and the roller 24 can be raised and lowered synchronously), and the tire centering device 50 is set on the longitudinal frame 11 or the transverse frame 12 or the tire carrier 20.

[0045] As a simplified embodiment, the frame 10 only includes a longitudinal frame 11 and can also be provided with at least the following three combined structures.

[0046] As another embodiment, the frame 10 includes a longitudinal frame 11 , the upper supporting and pressing device 30 and the lower supporting and pressing device 40 are both movably arranged on the longitudinal frame 11 , and the tire centering device 50 is arranged on the longitudinal frame 11 or the tire carrier 20 .

[0047] As another embodiment, the frame 10 includes a longitudinal frame 11, the upper supporting and pressing device 30 is movably arranged on the longitudinal frame 11, the tire carrier 20 is arranged as a movable structure that can be raised and lowered (such as the support legs can be raised and lowered or the fixed plate 23 and the roller 24 can be raised and lowered synchronously), and the tire centering device 50 is arranged on the longitudinal frame 11 or the tire carrier 20.

[0048] As another embodiment, the frame 10 includes a longitudinal frame 11, the lower supporting and pressing device 40 is movably arranged on the longitudinal frame 11, the tire carrier 20 is arranged as a movable structure that can be raised and lowered (such as the support legs can be raised and lowered or the fixed plate 23 and the roller 24 can be raised and lowered synchronously), and the tire centering device 50 is arranged on the longitudinal frame 11 or the tire carrier 20.

[0049] In summary, the supporting and pressing device for pressing the silent sponge on the inner wall of a tire described in the present invention is mainly provided with a tire carrier with a hollow structure, an upper supporting and pressing device provided with a plurality of retractable first supporting and pressing elements, a lower supporting and pressing device provided with a plurality of retractable second supporting and pressing elements, and a tire centering device. The upper supporting and pressing device is arranged above the tire carrier, and the lower supporting and pressing device is arranged below the tire carrier. The upper supporting and pressing device, the lower supporting and pressing device and at least two devices on the tire carrier are movably arranged, and the structure and position relationship are such that the plurality of retractable first supporting and pressing elements and the plurality of retractable second supporting and pressing elements act in sequence to form a continuous or discontinuous annular supporting and pressing surface to apply pressure to the silent sponge on the inner wall of the tire. The silent sponge and the adhesive can be tightly pressed together by a single pressing action. It has the advantages of high pressing efficiency and good pressing quality.

[0050] The present invention also discloses a silent tire production system (not shown), which includes a gluing device (not shown) for applying adhesive to the inner wall of the tire, a silent sponge laminating device (not shown) for applying strips of silent sponge or multiple tiles of silent sponge to the inner wall of the tire, and the aforementioned supporting and pressing device 1. This silent tire production system can be used to process ordinary tires into silent tires.

[0051] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made in accordance with the spirit of the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. A device for pressing a silent sponge on the inner wall of a tire, comprising a frame for arranging various components, characterized in that: It also includes a tire carrier with a hollow structure, an upper supporting and pressing device with a plurality of retractable first supporting and pressing elements, a lower supporting and pressing device with a plurality of retractable second supporting and pressing elements, and a tire centering device; wherein, the upper supporting and pressing device is arranged above the tire carrier, and the lower supporting and pressing device is arranged below the tire carrier, and at least two of the upper supporting and pressing device, the lower supporting and pressing device and the tire carrier are movably arranged.

2. The supporting and pressing device for pressing the silent sponge on the inner wall of a tire according to claim 1, characterized in that: In the silent sponge state of supporting the inner wall of the tire, the plurality of first supporting elements and the plurality of second supporting elements are arranged at intervals, and the outer surfaces of the first supporting elements and the outer surfaces of the second supporting elements form a discontinuous annular supporting surface.

3. The supporting and pressing device for pressing the silent sponge on the inner wall of a tire according to claim 1, characterized in that: In the silent sponge state of supporting the inner wall of the tire, the plurality of first supporting elements and the plurality of second supporting elements are arranged at intervals; wherein, the two ends of the first supporting element are set as first teeth, and the two ends of the second supporting element are set as second teeth, and the first teeth and the second teeth are arranged to cross and overlap, and the outer surface of the first supporting element and the outer surface of the second supporting element form a continuous annular supporting surface.

4. The supporting and pressing device for pressing the silent sponge on the inner wall of a tire according to claim 1, characterized in that: The tire carrier includes a support leg, a fixed plate arranged on the support leg, and a plurality of synchronously rolling rollers arranged above the fixed plate; wherein the middle parts of the fixed plate and the rollers are both configured as hollow structures, and a plurality of tire supporting devices are provided around the hollow structure of the fixed plate.

5. The supporting and pressing device for pressing the silent sponge on the inner wall of a tire according to any one of claims 1 to 4, characterized in that: The frame includes a longitudinal frame, the upper supporting and pressing device and the lower supporting and pressing device are both movably arranged on the longitudinal frame, and the tire centering device is arranged on the longitudinal frame or the tire carrier.

6. The supporting and pressing device for pressing the silent sponge on the inner wall of a tire according to any one of claims 1 to 4, characterized in that: The frame includes a longitudinal frame, the upper supporting and pressing device is movably arranged on the longitudinal frame, the tire carrier is movably arranged to be raised and lowered, and the tire centering device is arranged on the longitudinal frame or the tire carrier.

7. The supporting and pressing device for pressing a silent sponge on the inner wall of a tire according to any one of claims 1 to 4, characterized in that: The frame includes a longitudinal frame, the lower supporting and pressing device is movably arranged on the longitudinal frame, the tire carrier is movably arranged to be raised and lowered, and the tire centering device is arranged on the longitudinal frame or the tire carrier.

8. The supporting and pressing device for pressing a silent sponge on the inner wall of a tire according to any one of claims 1 to 4, characterized in that: The frame includes a longitudinal frame and a transverse frame. The upper supporting and pressing device can be movably set on the longitudinal frame or the transverse frame. The lower supporting and pressing device can be movably set on the longitudinal frame or independently set. The tire centering device is set on the longitudinal frame or the transverse frame or the tire carrier.

9. The supporting and pressing device for pressing a silent sponge on the inner wall of a tire according to any one of claims 1 to 4, characterized in that: The frame includes a longitudinal frame and a transverse frame, the upper support and pressure device is movably arranged on the longitudinal frame or the transverse frame, the tire carrier is movably arranged to be raised and lowered, and the tire centering device is arranged on the longitudinal frame or the transverse frame or the tire carrier.

10. The supporting and pressing device for pressing the silent sponge on the inner wall of a tire according to any one of claims 1 to 4, characterized in that: The frame includes a longitudinal frame and a transverse frame. The lower support and pressure device can be movably arranged on the longitudinal frame or independently arranged. The tire carrier can be moved up and down. The tire centering device is arranged on the longitudinal frame or the transverse frame or the tire carrier.

11. A silent tire production system comprising a gluing device for applying adhesive to the inner wall of the tire and a silent sponge laminating device for applying strip-shaped silent sponge or a plurality of tile-shaped silent sponges to the inner wall of the tire, characterized in that: It also includes the supporting and pressing device according to any one of claims 1 to 10.

12. A method for pressing a silent sponge against the inner wall of a tire, comprising: providing a tire with an adhesive applied to the inner wall of the tire; and initially applying a strip of silent sponge or a plurality of tile-shaped silent sponges having a length substantially equal to the inner circumference of the tire to the adhesive; and providing a pressing device according to any one of claims 1 to 10. The method comprises the following steps: First, the plurality of first supporting and pressing elements or the plurality of second supporting and pressing elements are retracted and placed in a supporting and pressing position in the middle of the tire. Then, the plurality of first supporting and pressing elements or the plurality of second supporting and pressing elements are simultaneously extended toward the inner wall of the tire and moved to the first position, forming a space between adjacent first supporting and pressing elements or second supporting and pressing elements. Then, the plurality of second supporting and pressing elements or the plurality of first supporting and pressing elements are retracted and placed at the supporting and pressing position in the middle of the tire, and the plurality of second supporting and pressing elements or the plurality of first supporting and pressing elements are simultaneously extended toward the inner wall of the tire and moved to the spacing space at the first position, so that the plurality of first supporting and pressing elements and the plurality of second supporting and pressing elements are spaced apart and distributed at the first position; Then, several first supporting elements and several second supporting elements located at the first position are synchronously extended toward the inner wall of the tire, so as to apply pressure to the strip-shaped silent sponge or several tile-shaped silent sponges on the inner wall of the tire through the continuous or discontinuous annular supporting surface formed by the outer surface of the first supporting element and the outer surface of the second supporting element, so that the silent sponge is tightly pressed against the adhesive.

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