Low-pressure precision casting aluminum alloy tire mold with detachable mold core

Abstract

The utility model relates to the technical field of tire molds, and discloses a low-pressure precision casting aluminum alloy tire mold with a detachable mold core, which comprises a shell, a mold core body is arranged in the shell, and a limiting component is arranged on the lower surface of the shell; the limiting assembly comprises a bottom shell, the bottom shell is fixedly connected to the lower surface of the outer shell, through holes are formed in the two sides of the bottom shell, a gear is rotationally connected to the lower surface of the outer shell, two first sliding grooves are formed in the lower surface of the outer shell, and sliding rods are slidably connected into the first sliding grooves. Accurate limiting is achieved through clamping of the clamping rods and the clamping holes, the end portions of the two clamping rods are tightly attached to the side wall of the mold core, the installation fastening performance can be remarkably improved, the loosening risk is reduced, limiting can be rapidly relieved only by reversely screwing the rotary knob during disassembly, tool assistance is not needed, fastening performance and operation convenience are both considered, a graded ejection structure is conveniently formed, and the disassembly efficiency is improved. And the adhesive force generated by high pressure between the mold core and the shell is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to tire mould technical field especially relates to a low pressure precision casting aluminum alloy tire mould of detachable core. BACKGROUND

[0002] Low pressure precision casting is a kind of casting method under lower pressure, melt metal is injected into tire mould and solidification process is controlled, and aluminum alloy tire mould is special mould for producing automobile tire, is made of aluminum alloy material, is formed by casting or machining, and core is the key component in mould for forming the inner surface of casting, determines the internal shape and dimensional accuracy of aluminum alloy tire.

[0003] When installing internal core in aluminum alloy tire mould, integral type tire mould usually welds and fixes core in mould interior, then it is difficult to dismantle core in time, and part installation can adopt multiple screws or multiple bolts, uses external tool to screw, makes core be fixed in mould interior, this kind of installation method improves the fastening degree of core installation, but when needing to dismantle core to maintain and repair damaged place, needs to use external tool to screw multiple screws and bolts and then dismantle core, is more time-consuming for the dismounting time of core, is not convenient for fast dismounting under the condition that core can be fastened and installed without using tool. SUMMARY

[0004] The utility model provides a low pressure precision casting aluminum alloy tire mould of detachable core to solve the shortcoming in prior art.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: a low pressure precision casting aluminum alloy tire mould of detachable core, comprising a shell, a core body is arranged in the shell, a limiting assembly is arranged on the lower surface of the shell.

[0006] The limiting assembly comprises a bottom shell, the bottom shell is fixedly connected to the lower surface of the shell, through holes are formed in the two sides of the bottom shell, a gear is rotatably connected to the lower surface of the shell, two first sliding grooves are formed in the lower surface of the shell, and a sliding rod is slidably connected in the first sliding groove.

[0007] As a further description of the above technical scheme:

[0008] A connecting rod is fixedly connected to the lower surface of the sliding rod, a rack is fixedly connected to one side of the connecting rod, a clamping rod is fixedly connected to one end of the connecting rod, a connecting block is fixedly connected to the other side of one of the connecting rods, and a gear is engagedly connected between the two racks.

[0009] As a further description of the above technical scheme:

[0010] The lower surface of the shell is rotationally connected with a screw rod, the connecting block is threadedly connected outside the screw rod, and one end of the screw rod is fixedly connected with a knob.

[0011] As a further description of the above technical solution:

[0012] The two sides of the core body are provided with clamping holes, and the two sides of the shell are provided with through holes.

[0013] As a further description of the above technical solution:

[0014] The inner wall bottom of the shell is provided with an ejection assembly, the ejection assembly comprises a plurality of columnar grooves, the columnar grooves are arranged on the inner wall bottom of the shell, and the two sides of the columnar grooves are provided with limiting grooves.

[0015] As a further description of the above technical solution:

[0016] The inside of the columnar groove is fixedly connected with a pushing spring, one end of the pushing spring is fixedly connected with a pushing block, the pushing block is slidably connected in the columnar groove, the two sides of the pushing block are fixedly connected with limiting blocks, the limiting blocks are slidably connected in the limiting grooves, the upper surfaces of the pushing blocks are fixedly connected with a top plate, the two sides of the inner wall of the shell are provided with second sliding grooves, and one side of one of the second sliding grooves is provided with a connecting groove.

[0017] As a further description of the above technical solution:

[0018] One side of the shell is fixedly provided with a hydraulic cylinder, the output end of the hydraulic cylinder is fixedly connected with a top block, the top block is slidably connected in the connecting groove, and the two sides of the core body are fixedly connected with sliding blocks.

[0019] The utility model has the advantages of the following beneficial effects:

[0020] 1、The utility model discloses a type core mounting structure, which comprises a shell and a type core body, the shell is provided with a connecting block, the connecting block is provided with a clamping rod, the type core body is provided with a clamping hole, and the clamping rod is clamped in the clamping hole.

[0021] 2. The utility model discloses a setting of ejector assembly, when the core needs to be disassembled from the shell inside, after the limitation of core is relieved, the top of pushing spring to push the block is used, under the action of multiple pushing spring pushing force, the core is pushed conveniently, makes it rise to the top of shell, and under the action of the pushing of hydraulic cylinder, the core is pushed further conveniently, makes it with shell and separates, thereby reduce the adhesion between the core and shell under the greater pressure, cause the phenomenon of difficult to disassemble. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The whole structure schematic diagram that the utility model provides is shown in the figure;

[0023] Figure 2 The bottom shell structure schematic diagram that the utility model provides is shown in the figure;

[0024] Figure 3 The connecting rod structure schematic diagram that the utility model provides is shown in the figure;

[0025] Figure 4 The connecting groove structure schematic diagram that the utility model provides is shown in the figure;

[0026] Figure 5 The slide rod structure schematic diagram that the utility model provides is shown in the figure;

[0027] Figure 6 The top block structure schematic diagram that the utility model provides is shown in the figure;

[0028] Figure 7 The pushing block section structure schematic diagram that the utility model provides is shown in the figure;

[0029] Figure 8 The clamping rod connecting place local structure diagram that the utility model provides is shown in the figure.

[0030] Legend:

[0031] 1, shell;2, core body;3, bottom shell;4, through hole;5, gear;6, first sliding slot;7, slide rod;8, connecting rod;9, rack;10, clamping rod;11, connecting block;12, screw;13, knob;14, clamping hole;15, through hole;16, cylindrical recess;17, limiting groove;18, pushing spring;19, push block;20, limiting block;21, top plate;22, second sliding slot;23, connecting groove;24, hydraulic cylinder;25, top block;26, sliding block. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0033] As shown in the accompanying Figures 1-8 The utility model provides an embodiment: a low pressure precision cast aluminum alloy tire mould of detachable core, including the shell 1, the inside of shell 1 is provided with core body 2, the lower surface of shell 1 is provided with limiting component;

[0034] Limiting component includes bottom shell 3, bottom shell 3 fixedly connected in the lower surface of shell 1, the both sides of bottom shell 3 are all set up and pass through hole 4, the lower surface of shell 1 is rotatably connected with gear 5, the lower surface of shell 1 is set up with two first sliding slot 6, the inside sliding connection of first sliding slot 6 has slide rod 7, and first sliding slot 6 is convenient for the sliding of slide rod 7, to drive the movement of connecting rod 8.

[0035] As shown in the accompanying Figure 3 The lower surface of slide rod 7 is fixedly connected with connecting rod 8, one side of connecting rod 8 is fixedly connected with rack 9, one end of connecting rod 8 is fixedly connected with clamping rod 10, the other side of one connecting rod 8 is fixedly connected with connecting block 11, gear 5 is engagedly connected between the two racks 9, the lower surface of shell 1 is rotatably connected with lead screw 12, connecting block 11 is screw-connected on the outside of lead screw 12, one end of lead screw 12 is fixedly connected with knob 13, the setting of rack 9 and gear 5 is convenient for driving the movement of both sides clamping rod 10 when one side knob 13 is screwed, and the inside of connecting block 11 is set up with the screw thread matched with lead screw 12.

[0036] As shown in the accompanying Figure 6 The both sides of core body 2 are set up with clamping hole 14, which is convenient for the clamping of one end of clamping rod 10.

[0037] As shown in the accompanying Figure 7As shown, the both sides of the shell 1 are provided with through holes 15, the clamping rod 10 is slidably connected in the through hole 15, the inner wall bottom of the shell 1 is provided with an ejection assembly, the ejection assembly comprises a plurality of columnar grooves 16, the plurality of columnar grooves 16 are provided in the inner wall bottom of the shell 1, the both sides of the columnar groove 16 are provided with limiting grooves 17, the inside of the columnar groove 16 is fixedly connected with a push spring 18, one end of the push spring 18 is fixedly connected with a push block 19, the push block 19 is slidably connected in the inside of the columnar groove 16, the both sides of the push block 19 are fixedly connected with limiting blocks 20, the limiting block 20 is slidably connected in the inside of the limiting groove 17, the columnar groove 16 is convenient for the retraction of the push block 19, when the limiting block 20 slides in the limiting groove 17, it is convenient for limiting the lifting position of the push block 19, the push spring 18 is convenient for lifting the push block 19 under the action of the compression and rebound of the push spring 18.

[0038] As shown in the accompanying drawings Figure 8 The upper surface of the plurality of push blocks 19 is fixedly connected with a top plate 21, the both sides of the inner wall of the shell 1 are provided with second sliding grooves 22, one side of one of the second sliding grooves 22 is provided with a connecting groove 23, one side of the shell 1 is fixedly installed with a hydraulic cylinder 24, the output end of the hydraulic cylinder 24 is fixedly connected with a top block 25, the top block 25 is slidably connected in the inside of the connecting groove 23, the top plate 21 is convenient for lifting the core body 2, and the top block 25 is convenient for pushing the sliding block 26 to move upwards.

[0039] As shown in the accompanying drawings Figure 6 The both sides of the core body 2 are fixedly connected with sliding blocks 26, the sliding block 26 is slidably connected in the inside of the second sliding groove 22, which is convenient for guiding the upward movement of the core body 2 and improves the stability of the upward movement of the core body 2.

[0040] Working principle: when the core body 2 needs to be disassembled, first rotate the knob 13 to drive the screw rod 12 to rotate, the rotation of the screw rod 12 pushes the connecting block 11 to move, when the connecting block 11 moves, it drives the connecting rod 8 on one side to move, so that the connecting rod 8 drives the corresponding clamping rod 10 to disengage from the clamping hole 14, when the connecting rod 8 moves, the synchronous movement of the corresponding side of the rack 9 drives the gear 5 to rotate, when the gear 5 rotates, the meshing with the rack 9 drives the other side of the rack 9 to rotate, and the other side of the rack 9 drives the other side of the connecting rod 8 to move, thereby driving the other side of the clamping rod 10 to disengage from the inside of the clamping hole 14, so that the core body 2 is released from the limiting;

[0041] When the core body 2 is released from the limiting, the plurality of pushing blocks 19 are pushed to move up under the action of the pushing spring 18 being compressed and rebounding, the two limiting blocks 20 on the two sides are driven to slide in the limiting groove 17 by the pushing blocks 19, the moving position of the pushing blocks 19 is limited, the plurality of pushing blocks 19 push the top plate 21 to move up, the top plate 21 pushes the core body 2, so that the core body 2 moves out of the inside of the shell 1, at this time, the hydraulic cylinder 24 is opened again, the top block 25 is pushed to slide in the connecting groove 23 under the extension of the output end of the hydraulic cylinder 24, when the top block 25 moves, the two sliding blocks 26 on the two sides of the core body 2 are pushed to slide in the second sliding groove 22 and move up, so that the top surface of the core body 2 moves to the upper side of the shell 1, facilitating the taking of the operator.

[0042] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. that is made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A low pressure precision casting aluminum alloy tire mold of removable core, comprising a shell (1), the inside of the shell (1) is provided with a core body (2), characterized in that: The lower surface of the shell (1) is provided with a limiting assembly; The limiting assembly comprises a bottom shell (3) fixedly connected to the lower surface of the shell (1), both sides of the bottom shell (3) are provided with through holes (4), the lower surface of the shell (1) is rotatably connected with a gear (5), the lower surface of the shell (1) is provided with two first sliding grooves (6), and the first sliding grooves (6) are slidably connected with sliding rods (7).

2. The low pressure precision cast aluminum alloy tire mold of a removable core according to claim 1, characterized in that: The lower surface of the sliding rod (7) is fixedly connected with a connecting rod (8), one side of the connecting rod (8) is fixedly connected with a rack (9), one end of the connecting rod (8) is fixedly connected with a clamping rod (10), and the other side of one of the connecting rods (8) is fixedly connected with a connecting block (11), and the two racks (9) are meshingly connected with the gear (5).

3. The low pressure precision cast aluminum alloy tire mold of a removable core according to claim 2, characterized in that: The lower surface of the shell (1) is rotatably connected with a lead screw (12), the connecting block (11) is threadedly connected to the outside of the lead screw (12), and one end of the lead screw (12) is fixedly connected with a knob (13).

4. The low pressure precision cast aluminum alloy tire mold of a removable core according to claim 2, characterized in that: Both sides of the core body (2) are provided with clamping holes (14), both sides of the shell (1) are provided with through holes (15), and the clamping rod (10) is slidably connected in the through holes (15).

5. The low pressure precision cast aluminum alloy tire mold of the removable core of claim 1, wherein: The inner wall bottom of the shell (1) is provided with an ejection assembly, the ejection assembly comprises a plurality of columnar grooves (16), a plurality of columnar grooves (16) are provided in the inner wall bottom of the shell (1), and both sides of the columnar groove (16) are provided with limiting grooves (17).

6. The low pressure precision cast aluminum alloy tire mold of a removable core according to claim 5, characterized in that: The inside of the columnar groove (16) is fixedly connected with a pushing spring (18), one end of the pushing spring (18) is fixedly connected with a pushing block (19), the pushing block (19) is slidably connected in the columnar groove (16), both sides of the pushing block (19) are fixedly connected with limiting blocks (20), the limiting blocks (20) are slidably connected in the limiting grooves (17), the upper surfaces of the plurality of pushing blocks (19) are fixedly connected with top plates (21), both sides of the inner wall of the shell (1) are provided with second sliding grooves (22), and one side of one of the second sliding grooves (22) is provided with a connecting groove (23).

7. The low pressure precision cast aluminum alloy tire mold of a removable core according to claim 1, characterized in that: One side of the shell (1) is fixedly provided with a hydraulic cylinder (24), the output end of the hydraulic cylinder (24) is fixedly connected with a top block (25), the top block (25) is slidably connected in the connecting groove (23), both sides of the core body (2) are fixedly connected with sliding blocks (26), and the sliding blocks (26) are slidably connected in the second sliding grooves (22).

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