A tire reverse capsule device and tire preparation method

Abstract

The present invention relates to the technical field of tire preparation, and specifically discloses a tire reverse capsule device and a tire preparation method, including a device base, the upper surface of the device base is symmetrically fixedly connected to two guide rails, the top of the device base is symmetrically slidably connected to two movable seats through the guide rails, the inner walls of the two movable seats close to each other are fixedly connected to intermediate rollers, the outer side of one of the intermediate rollers is slidably connected to a support cylinder, the outer side of the support cylinder is evenly fixedly connected to a plurality of support rollers, the outer sides of the plurality of support rollers are rotatably connected to a rotating drum, the outer sides of the intermediate rollers are slidably connected to mounting cylinders, the outer side of the mounting cylinder is fixedly connected to a capsule body, and the outer side of the mounting cylinder is symmetrically fixedly connected to a mounting plate and a limit plate. The present invention can achieve buffering of the expanded capsule body through spring 2, so as to avoid excessive pressure inside the capsule body that continues to move when the cord layer is stuck.

Description

Technical Field

[0001] The invention relates to the technical field of tire preparation, and in particular to a tire reverse encapsulation device and a tire preparation method. Background Art

[0002] Tire forming and turning-up technologies are divided into mechanical turning-up and capsule turning-up. The difference lies in the different ways of expanding the sidewall when the tire is turned up. The circumferential stretching of the tire sidewall by the capsule forming drum is more uniform than that by the mechanical forming drum, and no indentation-type bulge will be produced on the tire. Therefore, most manufacturers use capsule forming drums to manufacture tire outer tubes. The turning-up capsules used on the capsule forming drum can expand evenly under a certain air pressure. The push plate of the forming machine uses the capsule to evenly turn up and compact the tire carcass cord layer mounted on the capsule forming drum, so that the tire bead area forms a semi-finished embryo through the wire ring and the cord layer.

[0003] During the forming process, the tire's bead wire ring is placed at both ends of the forming drum, and then the airtight layer and the tire main cord layer are wound on the drum. The bead wire ring is moved to the appropriate position on the airtight layer and the cord layer, and then air pressure is injected to expand the turn-up capsule, forcing the cord layer to roll up to cover and turn up the bead wire ring. The two ends are then attached to the sidewall rubber to form a semi-finished embryo.

[0004] However, in actual operation, the inflation of the airbag requires a specific amount of gas to be injected into it to ensure that the airbag expands to a specified size. After that, the cord layer can be reversed and compacted under the push of the push plate. However, if the cord layer is stacked or stuck, and the push plate continues to push the airbag, it is very easy to cause excessive pressure in the airbag, which will not only affect the recovery of the airbag, but also shorten its service life. In addition, the existing operation method is relatively cumbersome, which greatly affects the efficiency of reverse packaging.

[0005] Therefore, it is necessary to provide a tire reverse encapsulation device and a tire preparation method to solve the above problems. Summary of the invention

[0006] The main purpose of the present invention is to provide a tire reverse encapsulation device and a tire preparation method, which can effectively solve the problems in the background technology.

[0007] To achieve the above object, the technical solution adopted by the present invention is:

[0008] A tire reverse capsule device comprises a device base, the upper surface of the device base is symmetrically fixedly connected to two guide rails, the top of the device base is symmetrically slidably connected to two movable seats through the guide rails, the inner walls of the two movable seats at one end close to each other are fixedly connected to intermediate rollers, the outer side of one of the intermediate rollers is slidably connected to a support cylinder, the outer side of the support cylinder is evenly fixedly connected to a plurality of support rollers, the outer sides of the plurality of support rollers are rotatably connected to a rotating drum, the outer sides of the intermediate rollers are slidably connected to mounting cylinders, the outer side of the mounting cylinder is fixedly connected to a capsule body, the outer side of the mounting cylinder is symmetrically fixedly connected to a mounting plate and a limiting plate, the end of the movable seat close to the rotating drum is fixedly connected to a push plate, and the inner side of the movable seat is provided with auxiliary components;

[0009] The auxiliary component includes a fixed plate fixedly connected to the inner wall of the movable seat, a plurality of movable rods are evenly fixedly connected in a circular array on one side of the fixed plate close to the capsule body, a plurality of sealing cylinders in a circular array are fixedly connected inside the mounting plate, the sealing cylinders penetrate into the interior of the capsule body, a fixed block is fixedly connected to the outer side of the movable rod, a piston is slidably connected to the outer side of the movable rod, a spring 2 is fixedly connected between the piston and the fixed block, and the piston is slidably connected to the inner side of the sealing cylinder.

[0010] As a further improvement of the above scheme, the base of the device is internally rotatably connected with a bidirectional screw rod, and the base of the device is internally symmetrically slidably connected with two sliders, the two sliders are respectively threadedly connected to the outer sides of the two ends of the bidirectional screw rod, the movable seat is fixedly connected to the top of the slider, and the outer wall of the base of the device is fixedly installed with a motor, and the bidirectional screw rod is fixedly connected to the output end of the motor.

[0011] As a further improvement of the above solution, a connecting disk is fixedly connected to the inner side of the supporting tube, and a spring 1 is fixedly connected between the connecting disk and an intermediate roller slidably connected to the supporting tube.

[0012] As a further improvement of the above scheme, a spring three is fixedly connected between the fixed plate and the mounting plate, and a plurality of limit rods are evenly fixedly connected to the side of the mounting plate close to the fixed plate. The plurality of limit rods slide through the fixed plate and the movable seat, and the limit rods are all sleeved on the inner side of the spring three.

[0013] As a further improvement of the above scheme, one end of several movable rods passing through the capsule body is fixedly connected to the same slip ring, and the interior of the slip ring is penetrated and rotatably connected with several connecting plates in a circular array, and the end of the connecting plate away from the slip ring is rotatably connected to a roller.

[0014] As a further improvement of the above solution, the diameter of the limiting plate is 1.2 times the inner diameter of the drum, and the inner diameter of the pushing plate is 1.2 times the diameter of the drum.

[0015] As a further improvement of the above solution, a plurality of fixed shafts in a circumferential array are fixedly connected inside the slip ring, and a torsion spring is fixedly connected between the fixed shaft and the inner wall of the connecting plate.

[0016] The method for preparing a tire comprises the following steps:

[0017] Step 1: Sleeve the tire's bead wire ring on the outside of the bladder body to facilitate moving to the outside of the airtight layer and the two ends of the tire's main cord layer after winding, laying the foundation for the stability of the subsequent tire structure and ensuring that the tire can be firmly installed on the rim during use;

[0018] Step 2: The two bladder bodies move and contact the two ends of the drum, and the airtight layer and the tire main cord layer are carefully wound on the ends of the drum and the bladder body, so that the two ends of the airtight layer and the tire main cord layer are covered on the outside of the bladder bodies at both ends;

[0019] Step 3: While manually checking the tightness of the airtight layer and the main tire cord layer, move the bead ring to the appropriate position on the airtight layer and the cord layer to ensure that the position of the bead ring, the airtight layer and the cord layer are accurately matched to achieve the integrity and stability of the tire structure and improve the overall performance and service life of the tire;

[0020] Step 4: Pour air pressure into the bladder body to expand it. The air pressure expands the bladder body to generate sufficient force to cause the cord layer to roll up, so that the cord layer covers and wraps the wire ring, thereby enhancing the structural strength of the tire.

[0021] Step 5: After the cord layer is covered and the wire ring is turned up, the sidewall rubber is attached to both ends to form a semi-finished embryo, which protects the side of the tire, enhances the wear and impact resistance of the tire, and makes the tire initially have a complete structure, ready for subsequent processing and vulcanization;

[0022] Step 6: Lay the two layers of steel belt tightly together. The steel belt can enhance the rigidity and stability of the tire. Laminating the two layers can further improve its strength and anti-deformation ability.

[0023] Step 7: Apply the tread to the outside of the steel belt layer to form a tread structure;

[0024] Step 8: Move the tread to the outside of the semi-finished embryo and compact it to ensure that the tread and the semi-finished embryo are tightly combined to form a complete and stable overall structure;

[0025] Step 9: The bonded tire embryo is vulcanized to make the rubber molecules cross-linked and complete the tire processing, thereby improving the elasticity, wear resistance and aging resistance of the tire.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The present invention installs the capsule body on the outside of the mounting plate, the mounting cylinder and the limit plate to control the expansion direction of the capsule body and ensure that the capsule body stably expands the airtight layer and the cord layer. With the help of the mutual cooperation of the piston and the sealing cylinder, the gas can be pushed into the capsule body to cause the capsule body to start expanding. The spring 2 can buffer the expanded capsule body to avoid excessive pressure inside the capsule body that continues to move when the cord layer stack is stuck, thereby preventing its service life from being affected and even avoiding the problem of being unable to restore to its original state.

[0028] 2. The present invention uses spring three to drive the capsule body toward the drum in the initial stage of movement of the movable seat, so that the capsule body can quickly and accurately reach the predetermined position. When the limit plate is against the drum, the continuous movement of the movable seat will drive the movable rod to move, and drive the piston to move in the sealing tube via the fixed block, so as to realize the expansion of the capsule body and accurately control the expansion process of the capsule body to ensure that the expansion force and amplitude meet the requirements of the air-tight layer and the cord layer. When the piston moves to the maximum stroke in the sealing tube, the capsule body stops expanding, effectively avoiding equipment damage and material waste caused by excessive expansion. At this time, if the movable seat continues to move, it will drive the push plate to push the expanded capsule body toward the drum, thereby achieving the anti-packaging of the air-tight layer and the cord layer.

[0029] 3. The movement of the movable rod of the present invention can drive a plurality of rollers to move on the inner side of the capsule body through the slip ring. When the roller contacts the inner wall of the capsule body close to one end of the limit plate, the continuously moving slip ring will cause the roller to roll on the inner wall of the capsule body. When the capsule body begins to reverse the cord layer, the roller will fit with the bending part of the reverse wrapping, thereby achieving synchronous compaction of the bending part during the reverse wrapping process, thereby ensuring the compaction quality and further reducing the possibility of gaps at the bending part. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 It is a schematic diagram of the structure of the device base of the present invention;

[0033] Figure 3 It is a partial structural diagram of the present invention. Figure 1 ;

[0034] Figure 4 It is a partial structural diagram of the present invention. Figure 2 ;

[0035] Figure 5 It is a partial structural diagram of the present invention. Figure 3 ;

[0036] Figure 6 It is a partial structural diagram of the present invention. Figure 4 ;

[0037] Figure 7 It is a partial structural diagram of the present invention. Figure 5 ;

[0038] Figure 8 It is a partial structural diagram of the present invention. Figure 6 .

[0039] In the figure: 1. device base; 2. movable seat; 3. rotating drum; 4. intermediate roller; 5. supporting cylinder; 601. mounting plate; 602. mounting cylinder; 603. limiting plate; 7. capsule body; 8. push plate; 9. motor; 10. slider; 11. bidirectional screw rod; 12. guide rail; 13. spring one; 14. connecting plate; 15. supporting roller; 101. fixed plate; 102. sealing cylinder; 103. slip ring; 104. connecting plate; 105. roller; 106. movable rod; 107. spring two; 108. spring three; 109. limiting rod; 110. piston; 111. fixed block; 112. fixed shaft; 113. torsion spring. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figures 1 to 8 As shown, the present invention provides an embodiment:

[0042] A tire reverse capsule device comprises a device base 1, the upper surface of the device base 1 is symmetrically fixedly connected to two guide rails 12, the top of the device base 1 is symmetrically slidably connected to two movable seats 2 through the guide rails 12, the inner walls of the two movable seats 2 close to each other are fixedly connected to intermediate rollers 4, the outer side of one intermediate roller 4 is slidably connected to a support cylinder 5, and the length of the intermediate roller 4 slidably connected to the support cylinder 5 is greater than the length of the other intermediate roller 4, the outer side of the support cylinder 5 is evenly fixedly connected to a plurality of support rollers 15, the outer sides of the plurality of support rollers 15 are rotatably connected to a rotating drum 3, the outer sides of the intermediate rollers 4 are slidably connected to mounting cylinders 602, the outer side of the mounting cylinder 602 is fixedly connected to a capsule body 7, the outer side of the mounting cylinder 602 is symmetrically fixedly connected to a mounting plate 601 and a limiting plate 603, the movable seat 2 is close to the rotating drum A push plate 8 is fixedly connected to one end of the drum 3, and auxiliary components are provided on the inner side of the movable seat 2. A bidirectional screw rod 11 is rotatably connected to the inside of the device base 1. Two sliders 10 are symmetrically slidably connected to the inside of the device base 1. The two sliders 10 are respectively threadedly connected to the outer sides of the two ends of the bidirectional screw rod 11. The movable seats 2 are fixedly connected to the top of the sliders 10. A motor 9 is fixedly installed on the outer wall of the device base 1. The bidirectional screw rod 11 is fixedly connected to the output end of the motor 9. A connecting plate 14 is fixedly connected to the inner side of the support tube 5. A spring 13 is fixedly connected between the connecting plate 14 and the intermediate roller 4 slidably connected to the support tube 5. The diameters of the limit plate 603 and the mounting plate 601 are both 1.2 times the inner diameter of the drum 3. The inner diameter of the push plate 8 is 1.2 times the diameter of the drum 3. The interior of the capsule body 7 is filled with inert gas.

[0043] The two movable seats 2 can be supported and installed through the device base 1, so that the movable seats 2 can stably slide on their upper surface through the guide rail 12, and the sliding installation of the installation cylinder 602 and the support cylinder 5 can be realized through the intermediate roller 4. The sliding installation of the installation cylinder 602 can drive the capsule body 7 to stop moving when the limit plate 603 fixedly connected thereto abuts against the drum 3, and cooperate with the auxiliary components to realize the expansion of the capsule body 7 and the reverse wrapping of the air-tight layer and the cord layer. The sliding installation of the support cylinder 5 can realize the installation of the drum 3 between the two intermediate rollers 4, and the drum 3 is connected to the rotation of the support roller 15, so that the drum 3 can be rotated on the outside of the support cylinder 5, so as to realize the winding of the cord layer and the air-tight layer on the outside of the drum 3. When the limit plates 603 at both ends abut against the two ends of the drum 3 respectively, the movable seat 2 that continues to move will push the intermediate roller 4 to support The capsule body 7 slides in the cylinder 5 to avoid affecting the relative movement of the movable seats 2 at both ends. The capsule body 7 is installed between the mounting plate 601, the mounting cylinder 602 and the limit plate 603, so that only the outer ring of the capsule body 7 can expand, thereby ensuring the expansion shape and effect of the capsule body 7, reducing the uncertainty of the expansion of the capsule body 7, and allowing the capsule body 7 to stably deform under the push of the push plate 8 to push the air-tight layer and the cord layer to be reversed. The safety of the reverse-wrapping process and the compaction quality of the bending part during the reverse-wrapping process can be ensured by the auxiliary components. Through the spring 13 and the connecting plate 14, when the two movable seats 2 are in the initial position, the rotating drum 3 can be located directly above the center position of the device base 1 to facilitate the winding of the air-tight layer and the cord layer. When the two movable seats 2 move toward each other, the elastic contraction of the spring 13 will not affect the moving stroke of the movable seat 2.

[0044] The auxiliary component includes a fixed plate 101 fixedly connected to the inner wall of the movable seat 2, and a plurality of movable rods 106 are evenly fixedly connected to the fixed plate 101 on one side close to the capsule body 7 in a circular array. A plurality of sealing cylinders 102 in a circular array are fixedly connected to the inside of the mounting plate 601. The sealing cylinder 102 penetrates the inside of the capsule body 7 and communicates with the capsule body 7. A fixed block 111 (such as Figure 7As shown in the figure, the outer side of the movable rod 106 is slidably connected with a piston 110, a spring 2 107 is fixedly connected between the piston 110 and the fixed block 111, the piston 110 is slidably connected to the inner side of the sealing tube 102, a spring 3 108 is fixedly connected between the fixed disk 101 and the mounting disk 601, and a plurality of limit rods 109 are evenly fixedly connected to one side of the mounting disk 601 close to the fixed disk 101, and the plurality of limit rods 109 all penetrate the fixed disk 101 and the movable seat 2, and the limit rods 109 are all sleeved on the inner side of the spring 3 108, and the ends of the plurality of movable rods 106 that penetrate into the capsule body 7 are all fixedly connected with the same slip ring 103, and the interior of the slip ring 103 penetrates and rotatably connects with a plurality of connecting plates 104 (combined with Figure 6 and Figure 7 ), the slip ring 103 is provided with a plurality of grooves for the connection plate 104 to rotate, the end of the connection plate 104 away from the slip ring 103 is rotatably connected with a roller 105, the interior of the slip ring 103 is fixedly connected with a plurality of fixed shafts 112 in a circular array, the fixed shafts 112 are located inside the end where the connection plate 104 and the slip ring 103 are rotatably connected, and a torsion spring 113 is fixedly connected between the fixed shaft 112 and the inner wall of the connection plate 104.

[0045] The fixed plate 101 can strengthen the strength of the local inner wall of the movable seat 2, reduce the local damage to the inner wall of the movable seat 2 caused by the compression process of the spring three 108, and improve the service life without increasing the production cost of the movable seat 2 too much. The cooperation between the sealing cylinder 102 and the piston 110 can realize the control of the air pressure in the capsule body 7. When the gas in the sealing cylinder 102 is completely pushed between the sealing cylinder 102 and the capsule body 7, the capsule body 7 can be expanded to a specified degree. At this time, the capsule body 7 can be pushed by the push plate 8 to realize the reverse packaging of the airtight layer and the cord layer. The sliding ring 103 can realize the rotation installation of several connecting plates 104, and under the action of the torsion spring 113 between the connecting plate 104 and the fixed shaft 112, the initial state of the connecting plate 104 can be ensured. The position remains unchanged, and the roller 105 is rotatably installed on the connecting plate 104, so that the roller 105 can roll along the inner wall of the capsule body 7 to complete the compaction of the reverse package bending part. The sliding ring 103 and the fixed block 111 can be driven to move by the movable rod 106. The movement of the fixed block 111 can drive the piston 110 to move in the sealing tube 102 through the spring two 107, and the spring two 107 can provide a buffer when the pressure in the capsule body 7 is too large, so as to avoid the problem of the cord layer stacking and getting stuck, which affects the service life of the capsule body 7. The spring three 108 can ensure the movement of the movable seat 2 after the limit plate 603 is against the rotating drum 3. While the spring three 108 supports the mounting plate 601, the position deviation of the spring three 108 during the compression and reset process is avoided.

[0046] In addition, the present invention provides a method for preparing a tire, comprising the following steps:

[0047] Step 1: Sleeve the tire's sub-mouth wire ring on the outside of the bladder body 7, so that it can be moved to the outside of the airtight layer and the two ends of the tire main cord layer after winding, laying a foundation for the stability of the subsequent tire structure and ensuring that the tire can be firmly installed on the rim during use;

[0048] Step 2: The two bladder bodies 7 move and contact the two ends of the drum 3, and the airtight layer and the tire main cord layer are carefully wound on the ends of the drum 3 and the bladder body 7, so that the two ends of the airtight layer and the tire main cord layer are covered on the outside of the bladder bodies 7 at the two ends;

[0049] Step 3: While manually checking the tightness of the airtight layer and the main tire cord layer, move the bead ring to the appropriate position on the airtight layer and the cord layer to ensure that the position of the bead ring, the airtight layer and the cord layer are accurately matched to achieve the integrity and stability of the tire structure and improve the overall performance and service life of the tire;

[0050] Step 4: inject air pressure into the bladder body 7 to expand it. The air pressure expands the bladder body 7 to generate sufficient force to cause the cord layer to roll up, so that the cord layer covers and wraps the wire ring, thereby enhancing the structural strength of the tire.

[0051] Step 5: After the cord layer is covered and the wire ring is turned up, the sidewall rubber is attached to both ends to form a semi-finished embryo, which protects the side of the tire, enhances the wear and impact resistance of the tire, and makes the tire initially have a complete structure, ready for subsequent processing and vulcanization;

[0052] Step 6: Lay the two layers of steel belt tightly together. The steel belt can enhance the rigidity and stability of the tire. Laminating the two layers can further improve its strength and anti-deformation ability.

[0053] Step 7: Apply the tread to the outside of the steel belt layer to form a tread structure;

[0054] Step 8: Move the tread to the outside of the semi-finished embryo and compact it to ensure that the tread and the semi-finished embryo are tightly combined to form a complete and stable overall structure;

[0055] Step 9: vulcanize the bonded tire embryo to make the rubber molecules cross-linked and complete the tire processing, thereby improving the elasticity, wear resistance and aging resistance of the tire;

[0056] In combination with the above preferred embodiments, the working principle of the present invention is as follows:

[0057] The initial state is as follows: the two movable seats 2 are located at the farthest ends, the spring 1 13, the spring 2 107, the spring 3 108 and the torsion spring 113 are all in the initial state, the capsule body 7 is in a normal state and the interior of the capsule and the sealing tube 102 are filled with inert gas, the piston 110 is located on the inner side of one end of the sealing tube 102 close to the fixed disk 101, and the slip ring 103 is in contact with one end of the sealing tube 102.

[0058] The operating steps of the device are as follows:

[0059] First, the operator starts the motor 9 so that its output end drives the bidirectional screw 11 to rotate, and the bidirectional screw 11 drives the sliders 10 at both ends to move toward each other, and the slider 10 drives the movable seat 2 to move stably under the support of the guide rail 12, and the movement of the movable seat 2 drives the fixed plate 101 and the middle roller 4 to move synchronously, and the fixed plate 101 pushes the mounting plate 601 to move through the spring three 108, and the mounting plate 601 drives the capsule body 7 and the limit plate 603 fixedly connected to the mounting cylinder 602 to move synchronously through the mounting cylinder 602, and when the limit plates 603 at both ends conflict with the rotating drum 3, they stop moving.

[0060] Then, the airtight layer and the cord layer are wound around the drum 3 and the outer sides of the two bladder bodies 7, and the wire ring is moved to the appropriate position on the airtight layer and the cord layer to achieve the fixing of the airtight layer and the cord layer wound around the drum 3 and the outer sides of the two bladder bodies 7;

[0061] Afterwards, the movable seats 2 at both ends continue to move, and the storage of elastic potential energy is achieved by compressing the spring three 108 through the fixed plate 101. The movement of the fixed plate 101 driven by the movable seat 2 will also drive the movable rod 106 to move toward the capsule body 7. During the movement, the fixed block 111 fixedly connected to the outside of the movable rod 106 moves accordingly, and the movable fixed block 111 drives the piston 110 to move through the spring two 107. The movement of the piston 110 in the sealing cylinder 102 will push the inert gas in the sealing cylinder 102 into the capsule body 7, causing the capsule body 7 to expand (because the airtight layer and the middle part of the cord layer are fixed between the steel wire ring and the drum 3 at this time, and the parts of the two ends exceeding the drum 3 are sleeved on the outside of the capsule body 7, so the expanded capsule body 7 can realize the expansion of the airtight layer and the cord layer exceeding the drum 3, so that the two ends of the airtight layer and the cord layer are trumpet-shaped). The capsule body 7 will expand the airtight layer and the cord layer to a specified size during the expansion process. At this time, the push plate 8 will contact the expanded capsule body 7, and push the capsule body 7 toward the drum 3 under the action of the continuously moving movable seat 2. The capsule body 7 expanded from between the mounting plate 601 and the limiting plate 603 will be deformed under the push of the push plate 8, thereby driving the airtight layer and the cord layer to be reversed under the limit of the wire ring (at this time, due to the limit of the limiting plate 603, the central part of the capsule body 7 cannot move, and the part exceeding the limit of the limiting plate 603 will be deformed with the movement of the push plate 8 to wrap the limiting plate 603. During the wrapping movement, since the middle part of the airtight layer and the cord layer are fixed on the outside of the drum 3, the trumpet-shaped airtight layer and the two end parts of the cord layer will be wrapped around the steel ring and the airtight layer and the cord layer fixed on the drum 3 under the push of the deformed part of the capsule body 7);

[0062] Among them, during the expansion process of the capsule body 7, the movable rod 106 drives the slip ring 103 to move, and the moving slip ring 103 drives the roller 105 to move toward the inner wall of the end of the capsule body 7 fixed with the limiting plate 603 through the connecting plate 104. When the roller 105 contacts the inner wall of the capsule body 7, the sliding ring 103 that continues to move will drive the roller 105 to roll on the inner wall of the capsule body 7. During the rolling process, the connecting plate 104 is driven to rotate with the fixed axis 112 as the center line and the torsion spring 113 is driven to twist to achieve elastic potential energy storage. When the capsule body 7 expands to a specified size, the roller 105 moves to the edge of the limiting plate 603. When the expanded capsule body 7 realizes the reverse wrapping of the airtight layer and the cord layer under the push of the push plate 8, the roller 105 moves to the bending part of the reverse wrapping part, and under the action of the torsional elastic potential energy of the torsion spring 113, the roller 105 is driven to roll on the bending part, so as to achieve the compaction of the bending part during the reverse wrapping process and ensure the quality of the compaction.

[0063] When the semi-finished embryo is formed, the two movable seats 2 are reset under the drive of the motor 9. At this time, each component will also return to its initial state under the elastic potential energy of the spring 1 13, the spring 2 107, the spring 3 108 and the torsion spring 113.

Claims

1. A tire reverse encapsulation device, comprising a device base (1), characterized in that: The upper surface of the device base (1) is symmetrically fixedly connected to two guide rails (12); the top of the device base (1) is symmetrically slidably connected to two movable seats (2) via the guide rails (12); the inner walls of the two movable seats (2) at one end close to each other are fixedly connected to intermediate rollers (4); the outer side of one of the intermediate rollers (4) is slidably connected to a support cylinder (5); the length of the intermediate roller (4) slidably connected to the support cylinder (5) is greater than the length of the other intermediate roller (4); the outer side of the support cylinder (5) is evenly fixedly connected to a plurality of support rollers (15); the plurality of support rollers The outer side of the intermediate roller (15) is rotatably connected to the rotating drum (3), the outer side of each intermediate roller (4) is slidably connected to a mounting cylinder (602), the outer side of the mounting cylinder (602) is fixedly connected to a capsule body (7), the outer side of the mounting cylinder (602) is symmetrically fixedly connected to a mounting plate (601) and a limiting plate (603), the capsule body (7) is installed between the mounting plate (601), the mounting cylinder (602) and the limiting plate (603), the end of the movable seat (2) close to the rotating drum (3) is fixedly connected to a push plate (8), and the inner side of each movable seat (2) is provided with an auxiliary component; The auxiliary component comprises a fixed plate (101) fixedly connected to the inner wall of the movable seat (2); a plurality of movable rods (106) are evenly fixedly connected in a ring array on one side of the fixed plate (101) close to the capsule body (7); a plurality of sealing cylinders (102) in a ring array are fixedly connected inside the mounting plate (601); the sealing cylinders (102) penetrate into the capsule body (7); a fixed block (111) is fixedly connected to the outer side of the movable rod (106); a piston (110) is slidably connected to the outer side of the movable rod (106); a spring 2 (107) is fixedly connected between the piston (110) and the fixed block (111); and the piston (110) is slidably connected to the inner side of the sealing cylinder (102); A connecting disk (14) is fixedly connected to the inner side of the supporting tube (5), and a spring 1 (13) is fixedly connected between the connecting disk (14) and an intermediate roller (4) slidably connected to the supporting tube (5); The diameter of the limiting plate (603) is 1.2 times the inner diameter of the rotating drum (3), and the inner diameter of the pushing plate (8) is 1.2 times the diameter of the rotating drum (3).

2. A tire inverted capsule device according to claim 1, characterized in that: A bidirectional screw rod (11) is rotatably connected inside the device base (1), and two sliders (10) are symmetrically slidably connected inside the device base (1). The two sliders (10) are respectively threadedly connected to the outer sides of the two ends of the bidirectional screw rod (11). The movable seat (2) is fixedly connected to the top of the slider (10). A motor (9) is fixedly installed on the outer wall of the device base (1), and the bidirectional screw rod (11) is fixedly connected to the output end of the motor (9).

3. A tire reverse encapsulation device according to claim 2, characterized in that: A spring three (108) is fixedly connected between the fixed disk (101) and the mounting disk (601), and a plurality of limit rods (109) are evenly fixedly connected to a side of the mounting disk (601) close to the fixed disk (101). The plurality of limit rods (109) are slidably passed through the fixed disk (101) and the movable seat (2), and the limit rods (109) are sleeved on the inner side of the spring three (108).

4. A tire reverse encapsulation device according to claim 2, characterized in that: One end of a plurality of movable rods (106) passing through the capsule body (7) is fixedly connected to the same slip ring (103), and the interior of the slip ring (103) is penetrated and rotatably connected to a plurality of connecting plates (104) in a circular array, and one end of the connecting plate (104) away from the slip ring (103) is rotatably connected to a roller (105).

5. A tire reverse encapsulation device according to claim 4, characterized in that: A plurality of fixed shafts (112) in a circumferential array are fixedly connected inside the slip ring (103), and a torsion spring (113) is fixedly connected between the fixed shaft (112) and the inner wall of the connecting plate (104).

6. A tire preparation method, the method being based on the tire reverse encapsulation device according to any one of claims 1 to 5, characterized in that: The following steps are involved: Step 1: Sleeve the tire's steel wire ring onto the outside of the bladder body (7) to facilitate its movement to the outside of the airtight layer and the two ends of the tire's main cord layer after winding; Step 2: The two bladder bodies (7) are moved to contact the two ends of the drum (3), and the airtight layer and the tire main cord layer are carefully wound on the ends of the drum (3) and the bladder body (7), so that the two ends of the airtight layer and the tire main cord layer are covered on the outside of the two end bladder bodies (7); Step 3: While manually checking the tightness of the airtight layer and the main tire cord layer, move the bead ring to the appropriate position on the airtight layer and the cord layer to ensure that the position of the bead ring, the airtight layer and the cord layer are accurately matched to achieve the integrity and stability of the tire structure and improve the overall performance and service life of the tire; Step 4: injecting air pressure into the bladder body (7) to expand it, and the air pressure expands the bladder body (7) to generate sufficient force to cause the cord layer to roll up, so that the cord layer covers and wraps the wire ring, thereby enhancing the structural strength of the tire; Step 5: After the cord layer is covered and the wire ring is turned up, the sidewall rubber is attached to both ends to form a semi-finished embryo, which protects the side of the tire, enhances the wear and impact resistance of the tire, and makes the tire initially have a complete structure, ready for subsequent processing and vulcanization; Step 6: Lay the two layers of steel belt tightly together. The steel belt can enhance the rigidity and stability of the tire. Laminating the two layers can further improve its strength and anti-deformation ability. Step 7: Apply the tread to the outside of the steel belt layer to form a tread structure; Step 8: Move the tread to the outside of the semi-finished embryo and compact it to ensure that the tread and the semi-finished embryo are tightly combined to form a complete and stable overall structure; Step 9: The bonded tire embryo is vulcanized to make the rubber molecules cross-linked and complete the tire processing, thereby improving the elasticity, wear resistance and aging resistance of the tire.

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