Gas-liquid combined device for pulling and expanding toe opening of outer tire of tire

Abstract

The utility model discloses a gas-liquid combined device for pulling and expanding a toe opening of an outer tire of a tire. The key point of the technical scheme is that the device comprises a support frame, the number of the flaring mechanisms is two, and the two flaring mechanisms can slide up and down on the supporting frame; the driving mechanisms correspond to the two flaring mechanisms respectively so as to drive the flaring mechanisms to slide up and down, the driving mechanism corresponding to one flaring mechanism is an air cylinder, and the driving mechanism corresponding to the other flaring mechanism is a hydraulic cylinder; the flaring mechanism comprises a plurality of flaring fingers, the flaring fingers are arranged around a vertical axis, and the flaring fingers are used for pulling an outer tire toe opening for flaring; the power assembly is used for driving the flaring fingers to slide in the radial direction of the outer tire; the two flaring mechanisms are used for respectively pulling the two toe openings for flaring, so that the flaring angle of the outer tire is increased, and the inner tire flap is more easily filled into the outer tire.

Description

Technical Field

[0001] The utility model relates to a tire mounting machine, and more specifically, to a pneumatic-liquid combined tire outer tire bead expanding device. Background Art

[0002] Tires are important components of automobiles. Since they are consumables, with the development of the automobile industry, the demand for tires has also increased. In the production of tires, it is necessary to install inner tubes and flap belts inside the produced outer tires.

[0003] When installing an inner tube and a flap belt into an outer tire, it is necessary to pull the bead of the tire outward and then pull the upper and lower beads of the tire away from each other to facilitate loading the inner tube and flap belt into the outer tire. In the existing installation of inner tubes and flap belts, when expanding the tire, that is, pulling the bead outward and pulling the upper and lower beads away from each other, manual operation often fails to pull it open due to the high strength of the tire. For existing mechanical equipment, for example, in the existing patent with the publication number CN202847356U, a mechanical structure for expanding the tire bead is proposed, which can only expand the bead on one side of the tire, resulting in a small opening degree of the bead and making it easy to be blocked when installing the inner tube and flap belt. Summary of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a pneumatic-liquid combined tire outer tire bead expanding device, which expands the two beads through two bead expanding mechanisms respectively, improving the bead expanding angle of the outer tire, thereby making it easier to load the inner tube and flap belt into the outer tire.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A pneumatic-liquid combined tire outer tire bead expanding device, including a support frame;

[0006] Bead expanding mechanisms, there are two bead expanding mechanisms, and the two bead expanding mechanisms can slide up and down on the support frame;

[0007] And a driving mechanism, the driving mechanism is respectively corresponding to the two bead expanding mechanisms to drive the bead expanding mechanisms to slide up and down. The driving mechanism corresponding to one bead expanding mechanism is set as a cylinder, and the driving mechanism corresponding to the other bead expanding mechanism is set as a hydraulic cylinder;

[0008] The bead expanding mechanism includes bead expanding fingers, there are multiple bead expanding fingers arranged around a vertical axis, and the multiple bead expanding fingers are used to pull the outer tire bead for expansion;

[0009] And a power assembly, the power assembly is used to drive the multiple bead expanding fingers to slide in the radial direction of the outer tire.

[0010] The utility model is further configured as follows: the expansion mechanism comprises a fixed disk, the fixed disk is configured as a disk with a vertical axis, and a plurality of expansion fingers are arranged around the axis of the fixed disk;

[0011] A guide rod, the guide rod is fixedly connected to the fixed disk, the guide rod is provided with a plurality of guide rods and each guide rod corresponds to a flaring finger, the plurality of guide rods are arranged around the axis of the fixed disk and the length direction of the guide rods is arranged along the radial direction of the fixed disk;

[0012] And a sliding block, each guide rod is provided with a sliding block, the sliding block slides on the guide rod along the length direction of the guide rod, and the sliding block on the guide rod is fixedly connected with the flaring finger corresponding to the guide rod.

[0013] The utility model is further configured as follows: the expansion mechanism further includes a lifting frame, the fixed plate is fixedly connected to the lifting frame, and the lifting frame is configured as a rectangular frame;

[0014] Four positioning blocks are arranged at the four corners of the lifting frame. Positioning rods which vertically penetrate the positioning blocks are arranged on the positioning blocks. The positioning rods are fixedly connected to the supporting frame, and the positioning blocks can slide vertically on the positioning rods.

[0015] The utility model is further configured that: each positioning block corresponds to a driving mechanism.

[0016] The utility model is further configured as follows: the power assembly includes a rotating disk rotatably connected to a fixed disk, a plurality of guide grooves are arranged on the rotating disk, each guide groove corresponds to a positioning block, the guide grooves gradually approach the axis of the rotating disk from the outer end to the inner end, and the positioning block is fixedly connected to a guide block inserted into the corresponding guide groove.

[0017] The utility model is further configured as follows: the power assembly further comprises an outer gear ring, and the outer gear ring is fixedly connected to the outside of the rotating disk;

[0018] and a gear, which is meshed with the rotating disk and is drivingly connected with the motor.

[0019] The utility model is further configured as follows: the flaring finger comprises a vertical rod, the vertical rod is vertically arranged, and one end of the vertical rod is fixedly connected to the sliding block;

[0020] And a limiting rod, wherein the length direction of the limiting rod is arranged along the radial direction of the fixed disk, and the limiting rod is fixedly connected to an end of the vertical rod away from the sliding block.

[0021] The utility model is further configured as follows: the expanding fingers of the two expanding mechanisms are located at a side where the two expanding mechanisms are close to each other.

[0022] In summary, the present utility model has the following beneficial effects compared with the prior art: by using two flaring mechanisms to pull two toe openings respectively for flaring, the flaring angle of the outer tire is increased, making it easier to load the inner tube flap into the outer tire. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the overall structure of the embodiment;

[0024] Figure 2 is Figure 1 an enlarged schematic view of part A of

[0025] Figure 3 is Figure 1 an enlarged schematic view of part B of

[0026] Figure 4 is a schematic diagram showing the guide rod in the embodiment;

[0027] Figure 5 is Figure 4 an enlarged schematic view of part C of

[0028] In the figure: 1, support frame; 2, flaring mechanism; 21, fixed disk; 22, lifting frame; 221, positioning block; 222, positioning rod; 23, flaring finger; 231, vertical rod; 232, limiting rod; 24, guide rod; 25, sliding block; 251, guiding block; 26, rotating disk; 261, guiding groove; 262, external gear ring; 27, gear; 3, driving mechanism. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the technical solutions of the present utility model will be clearly and completely described below in conjunction with the drawings of the present utility model. Based on the embodiments in this application, other similar embodiments obtained by those of ordinary skill in the art without creative efforts shall all fall within the scope of protection of this application. In addition, the directional terms mentioned in the following embodiments, such as "up", "down", "left", "right", etc., are only with reference to the directions in the drawings. Therefore, the directional terms used are for illustration rather than to limit the present invention.

[0030] The present utility model will be further described below in conjunction with the drawings and preferred embodiments.

[0031] Embodiment: A device for expanding the toe opening of a pneumatic-liquid combined tire outer tire, see attached Figure 1 - attached Figure 5, including a support frame 1, a flaring mechanism 2 and a driving mechanism 3; there are two flaring mechanisms 2, and the two flaring mechanisms 2 can slide up and down on the support frame 1; the driving mechanisms 3 are respectively arranged corresponding to the two flaring mechanisms 2 to drive the flaring mechanisms 2 to slide up and down, and the driving mechanism 3 corresponding to one flaring mechanism 2 is set as a cylinder, and the driving mechanism 3 corresponding to the other flaring mechanism 2 is set as a hydraulic cylinder.

[0032] Specifically, the two flaring mechanisms 2 respectively pull the bead openings on both sides of the tire, and then drive the two flaring mechanisms 2 to respectively pull the bead openings on both sides of the tire in opposite directions to flare the tire under the action of the two driving mechanisms 3, improving the opening degree of the bead openings, so that the inner tube cushion can be more easily loaded into the outer tire.

[0033] Specifically, the flaring mechanism 2 includes flaring fingers 23 and a power assembly. There are multiple flaring fingers 23 arranged around a vertical axis, and the multiple flaring fingers 23 are used to pull the bead opening of the outer tire to flare; the power assembly is used to drive the multiple flaring fingers 23 to slide in the radial direction of the outer tire.

[0034] Specifically, the flaring mechanism 2 includes a fixed disk 21, guide rods 24 and sliding blocks 25. The fixed disk 21 is set as a disk with a vertical axis, and multiple flaring fingers 23 are arranged around the axis of the fixed disk 21; the guide rods 24 are fixedly connected to the fixed disk 21, there are multiple guide rods 24 and each guide rod 24 corresponds to one flaring finger 23, the multiple guide rods 24 are arranged around the axis of the fixed disk 21 and the length direction of the guide rods 24 is set along the radial direction of the fixed disk 21; a sliding block 25 is arranged on each guide rod 24, and the sliding block 25 slides along the length direction of the guide rod 24 on the guide rod 24, and the sliding block 25 on the guide rod 24 is fixedly connected to the flaring finger 23 corresponding to the guide rod 24.

[0035] Through the sliding of the multiple sliding blocks 25 on the guide rods 24, the flaring fingers 23 are driven to pull the bead opening of the tire to expand outwards.

[0036] Specifically, the flaring mechanism 2 further includes a lifting frame 22, the fixed disk 21 is fixedly connected to the lifting frame 22, and the lifting frame 22 is set as a rectangular frame; four positioning blocks 221 are arranged at the four corners of the lifting frame 22, positioning rods 222 vertically penetrating the positioning blocks 221 are arranged on the positioning blocks 221, and the positioning rods 222 are fixedly connected to the support frame 1, and the positioning blocks 221 can slide vertically on the positioning rods 222. Each positioning block 221 corresponds to one driving mechanism 3.

[0037] Specifically, the power assembly includes a rotating disk 26 rotatably connected to the fixed disk 21. A plurality of guiding grooves 261 are provided on the rotating disk 26, and each guiding groove 261 corresponds to a positioning block 221. The guiding grooves 261 gradually approach the axis of the rotating disk 26 from the outer end to the inner end. A guiding block 251 inserted into the corresponding guiding groove 261 is fixedly connected to the positioning block 221. When the rotating disk 26 rotates, the position of the guiding block 251 in the guiding groove 261 changes, thereby changing the distance between the guiding block 251 and the axis of the fixed disk 21, and driving the sliding block 25 to slide on the guiding rod 24.

[0038] Specifically, the power assembly further includes an external gear ring 262 and a gear 27. The external gear ring 262 is fixedly connected to the outside of the rotating disk 26; the gear 27 meshes with the rotating disk 26 and is in transmission connection with the motor.

[0039] Specifically, the flaring finger 23 includes a vertical rod 231 and a limiting rod 232. The vertical rod 231 is vertically arranged, and one end of the vertical rod 231 is fixedly connected to the sliding block 25; the length direction of the limiting rod 232 is arranged along the radial direction of the fixed disk 21, and the limiting rod 232 is fixedly connected to the end of the vertical rod 231 away from the sliding block 25.

[0040] Specifically, the flaring fingers 23 of the two flaring mechanisms 2 are located on the side where the two flaring mechanisms 2 approach each other.

[0041] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A device for expanding the bead toe of a pneumatic and liquid combined tire outer tire, characterized in that: It comprises a support frame (1); An expansion mechanism (2), wherein two expansion mechanisms (2) are provided, and the two expansion mechanisms (2) are capable of sliding up and down on the support frame (1); and a driving mechanism (3), wherein the driving mechanism (3) is respectively arranged corresponding to the two expanding mechanisms (2) to drive the expanding mechanisms (2) to slide up and down, wherein the driving mechanism (3) corresponding to one expanding mechanism (2) is arranged as a cylinder, and the driving mechanism (3) corresponding to the other expanding mechanism (2) is arranged as a hydraulic cylinder; The expansion mechanism (2) comprises expansion fingers (23), wherein a plurality of the expansion fingers (23) are arranged around a vertical axis, and the plurality of expansion fingers (23) are used to pull the tire toe to expand; And a power assembly, the power assembly is used to drive a plurality of expansion fingers (23) to slide along the radial direction of the outer tire.

2. The tire carcass expanding bead toe device with gas-liquid combination according to claim 1, characterized in that: The expansion mechanism (2) comprises a fixed disk (21), the fixed disk (21) is configured as a circular disk with a vertical axis, and a plurality of expansion fingers (23) are arranged around the axis of the fixed disk (21); A guide rod (24), the guide rod (24) being fixedly connected to the fixed disk (21), the guide rod (24) being provided with a plurality of guide rods and each guide rod (24) corresponding to a flaring finger (23), the plurality of guide rods (24) being arranged around the axis of the fixed disk (21) and the length direction of the guide rods (24) being arranged along the radial direction of the fixed disk (21); And a sliding block (25), each guide rod (24) is provided with a sliding block (25), the sliding block (25) slides on the guide rod (24) along the length direction of the guide rod (24), and the sliding block (25) on the guide rod (24) is fixedly connected with the flaring finger (23) corresponding to the guide rod (24).

3. The pneumatic-liquid combined tire carcass expanding bead toe device according to claim 2, characterized in that: The expansion mechanism (2) further comprises a lifting frame (22), the fixed plate (21) is fixedly connected to the lifting frame (22), and the lifting frame (22) is configured as a rectangular frame; Four positioning blocks (221) are arranged at the four corners of the lifting frame (22); positioning rods (222) vertically penetrating the positioning blocks (221) are arranged on the positioning blocks (221); the positioning rods (222) are fixedly connected to the support frame (1); and the positioning blocks (221) can slide vertically on the positioning rods (222).

4. The pneumatic-liquid combined tire carcass expanding bead toe device according to claim 3, wherein: Each positioning block (221) corresponds to a driving mechanism (3).

5. The pneumatic-liquid combined tire carcass expanding bead toe device according to claim 4, characterized in that: The power assembly comprises a rotating disk (26) rotatably connected to a fixed disk (21); a plurality of guide grooves (261) are provided on the rotating disk (26); each guide groove (261) corresponds to a positioning block (221); the guide grooves (261) gradually approach the axis of the rotating disk (26) from the outer end to the inner end; and a guide block (251) inserted into the corresponding guide groove (261) is fixedly connected to the positioning block (221).

6. The pneumatic-liquid combined tire outer tire drawing and expanding bead device according to claim 5, characterized in that: The power assembly further comprises an outer gear ring (262), wherein the outer gear ring (262) is fixedly connected to the outside of the rotating disk (26); and a gear (27), wherein the gear (27) is meshed with the rotating disk (26) and is transmission-connected with the motor.

7. The pneumatic-liquid combined tire carcass expanding bead toe device according to claim 6, characterized in that: The flaring finger (23) includes a vertical rod (231), the vertical rod (231) is vertically arranged, and one end of the vertical rod (231) is fixedly connected to the sliding block (25); and a limiting rod (232), the length direction of the limiting rod (232) is arranged along the radial direction of the fixed disk (21), and the limiting rod (232) is fixedly connected to the end of the vertical rod (231) away from the sliding block (25).

8. The pneumatic-liquid combined tire carcass expanding bead toe device according to claim 7, wherein: The flaring fingers (23) of the two flaring mechanisms (2) are located on the side where the two flaring mechanisms (2) are close to each other.

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