Inner wall air passage heating type tire mold

Abstract

The utility model relates to the technical field of heating type tire molds, in particular to an inner wall air passage heating type tire mold, and aims to solve the problem of poor tire quality caused by difficulty in uniform temperature distribution in a tire heating process because the inner diameter and the outer diameter of an existing tire are different. After the upper mold and the lower mold are combined, a tire material is introduced into the mold cavity between the upper mold and the lower mold through the liquid inlet pipe, then heat energy is conveyed into the air storage groove through the air inlet pipe, then the tire material in the mold cavity is heated, and after heating is conducted for a period of time, an L-shaped rod needs to be rotated, so that the tire material in the mold cavity is heated; when the tire is heated, an L-shaped rod comes out of a clamping groove, a switching ring and the L-shaped rod vertically move through a spring rod, then the L-shaped rod is rotated to enable a ladder block to be clamped into a communicating groove in an inner ring groove, the inner ring groove is isolated, at the moment, the outer diameter of the tire can be heated, and on the contrary, the inner diameter of the tire can be heated by clamping the ladder block into a communicating groove in an outer ring groove. Therefore, the quality of the tire is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to heating type tire mould technical field, concretely is a kind of inner wall air passage heating type tire mould. BACKGROUND

[0002] Heating type tire mould, it is the key weapon in the field of tire manufacturing. It uses advanced heating technology, can accurately control temperature, ensure that rubber material is shaped under the best state. Uniform and stable heating system effectively improves tire vulcanization quality and production efficiency, makes tire have excellent wear resistance, grip and safety, meets the diversified road conditions and driving needs, however, the existing heating type tire mould is influenced by the traditional habit of industry, generally is to mould inner diameter and outer diameter together heating, since the between tire inner diameter and outer diameter is not one, uniform heating can cause the transmission efficiency of heat at different parts of tire to be inconsistent, so that temperature distribution is difficult to be uniform in tire heating process, leads to tire quality problem. UTILITY MODEL CONTENTS

[0003] The utility model discloses a kind of inner wall air passage heating type tire mould, work using this device, to solve the between tire inner diameter and outer diameter is not one, so that temperature distribution is difficult to be uniform in tire heating process, leads to tire quality problem.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of inner wall air passage heating type tire mould, including upper mould and lower mould, upper mould and lower mould are mirror image setting, upper mould and lower mould are internally provided with gas storage groove, outer ring groove, inner ring groove, communicating groove, gas storage groove and outer ring groove and inner ring groove are communicated by communicating groove, gas storage groove is provided with switching assembly for switching heating path inside, the communicating groove at outer ring groove and the communicating groove at inner ring groove are staggered, upper mould and lower mould outer surface are provided with inlet pipe, inlet pipe is arranged between upper mould and lower mould, gas storage groove and inlet pipe are communicated;

[0005] Switching assembly includes switching ring arranged in the inside of gas storage groove, baffle fixedly installed on the upper surface of switching ring, spring rod arranged on the lower surface of switching ring, rotatable rod movably arranged in the inside of upper mould, baffle is adapted to gas storage groove.

[0006] Preferably, the inner wall of the switching ring is fixedly installed with an inner tooth and a bottom plate, the lower surface of the inner tooth is fixedly installed with the upper surface of the bottom plate, a T-shaped groove is formed in the bottom of the switching ring, a gear is sleeved on the outer surface of the rotatable rod, the lower surface of the gear is attached to the upper surface of the bottom plate, the gear is engaged with the inner tooth, an L-shaped rod is fixedly installed on the lower surface of the rotatable rod, and the L-shaped rod is located above the upper mould and below the lower mould.

[0007] Preferably, one side of the partition plate is provided with a receiving groove, a connecting plate is fixedly installed on the inner wall of the receiving groove, a bidirectional spring rod is fixedly installed on one end of the connecting plate, ladders are fixedly installed on both ends of the bidirectional spring rod, the ladders are matched with the communication grooves, and heat insulation sleeves are sleeved on outer surfaces of the ladders.

[0008] Preferably, the gas storage groove is provided with a bottom groove at the bottom, an inner groove is formed in the gas storage groove, the inner groove is matched with the switching ring, heat insulation layers are arranged on both sides of the inner wall of the gas storage groove, and supporting plates are fixedly installed on upper surfaces of the upper die and lower surfaces of the lower die.

[0009] Preferably, a T plate is fixedly installed on the upper surface of the spring rod, the T plate is slidably connected with a T ring groove, and the lower surface of the spring rod is fixedly connected with the upper surface of the bottom groove.

[0010] Preferably, the heat insulation layers and the heat insulation sleeves are members made of rock wool.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] The utility model discloses a kind of inner wall airway heating type tire mould, when needing to make tire, liquid rubber is added to the die cavity between upper die and lower die inside by liquid inlet pipe, then the gas after heating is entered inside, with the addition of hot gas, pull down L rod, L rod is clamped into the card slot, at this time, outer ring groove and gas storage groove and inner ring groove are communicated, since the structure of upper die and lower die is same, with three kinds of communication, the inner ring groove and outer ring groove of upper die and lower die will be heated simultaneously, since the inside diameter of tire is different from outside diameter, but the heat energy is same, when needing to heat tire inside diameter preferentially, rotate L rod, let switching ring rotate with partition plate, let ladder block enter the communication groove in outer ring groove, at this time, heat energy enters the inner ring groove, and tire outside diameter is heated, in turn, ladder block is clamped into the communication groove in inner ring groove, at this time, tire inside diameter can be heated, to improve the quality of tire. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is overall structure schematic diagram of the utility model;

[0014] Figure 2 It is overall separate schematic diagram of the utility model;

[0015] Figure 3 It is upper die sectional view schematic diagram of the utility model;

[0016] Figure 4 It is upper die explosion sectional view schematic diagram of the utility model;

[0017] Figure 5 It is switching ring explosion sectional view schematic diagram of the utility model.

[0018] Figure 6 It is the explosion section view schematic diagram of the partition plate of the utility model.

[0019] In the figure: 1, upper mold; 11, gas storage groove; 12, outer ring groove; 13, inner ring groove; 14, bottom groove; 15, heat insulation layer; 16, communication groove; 17, inner groove; 18, support plate; 19, clamping groove; 2, lower mold; 3, switching assembly; 31, switching ring; 311, inner tooth; 312, T ring groove; 313, bottom plate; 32, partition plate; 321, storage groove; 322, connecting plate; 323, bidirectional spring rod; 324, ladder block; 325, heat insulation sleeve; 33, spring rod; 331, T plate; 34, rotating rod; 341, gear; 342, L rod; 4, liquid inlet pipe; 5, air inlet pipe. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] To solve the technical problem of how to improve tire quality, as shown in Figures 1-5 and Figure 6 The following preferred technical solutions are provided:

[0022] An inner wall air channel heating type tire mold, comprising an upper mold 1 and a lower mold 2, the upper mold 1 and the lower mold 2 are mirror image arranged, the upper mold 1 and the lower mold 2 are internally provided with a gas storage groove 11, an outer ring groove 12, an inner ring groove 13 and a communication groove 16, the gas storage groove 11 is communicated with the outer ring groove 12 and the inner ring groove 13 through the communication groove 16, the gas storage groove 11 is internally provided with a switching assembly 3 for switching heating path, the communication groove 16 at the outer ring groove 12 and the communication groove 16 at the inner ring groove 13 are staggered arranged, the upper mold 1 and the lower mold 2 are externally provided with an air inlet pipe 5, the upper mold 1 and the lower mold 2 are provided with a liquid inlet pipe 4 between them, the gas storage groove 11 is communicated with the air inlet pipe 5;

[0023] The switching assembly 3 comprises a switching ring 31 arranged in the gas storage groove 11, a partition plate 32 fixedly installed on the upper surface of the switching ring 31, a spring rod 33 arranged on the lower surface of the switching ring 31, a rotating rod 34 movably arranged in the upper mold 1, the partition plate 32 is matched with the gas storage groove 11, the switching ring 31 can be rotated by rotating the rotating rod 34, so as to switch the path of hot gas flow, and the mold can select whether to heat the outer diameter or the inner diameter.

[0024] The inner wall of the switching ring 31 is fixedly provided with an inner tooth 311 and a bottom plate 313. The lower surface of the inner tooth 311 is fixedly provided with the upper surface of the bottom plate 313. The bottom of the switching ring 31 is provided with a T-shaped groove 312. The outer surface of the rotating rod 34 is provided with a gear 341. The lower surface of the gear 341 is attached to the upper surface of the bottom plate 313. The gear 341 is engaged with the inner tooth 311. The lower surface of the rotating rod 34 is fixedly provided with an L-shaped rod 342. The L-shaped rod 342 is located above the upper die 1 and below the lower die 2. By rotating the L-shaped rod 342, the switching ring 31 can move with the partition plate 32, so that the partition plate 32 blocks the communication groove 16, and the hot air can only enter the outer ring groove 12 or the inner ring groove 13.

[0025] A receiving groove 321 is provided on one side of the partition plate 32. A connecting plate 322 is fixedly provided on the inner wall of the receiving groove 321. A bidirectional spring rod 323 is fixedly provided at one end of the connecting plate 322. Ladder blocks 324 are fixedly provided at both ends of the bidirectional spring rod 323. The ladder blocks 324 are matched with the communication groove 16. A heat insulation sleeve 325 is provided on the outer surface of the ladder block 324. The communication groove 16 can be blocked by the ladder block 324. The heat insulation sleeve 325 can prevent heat transfer. When one group of communication grooves 16 is not blocked, the bidirectional spring rod 323 can make the communication grooves 16 enter the receiving groove 321.

[0026] A bottom groove 14 is provided at the bottom of the gas storage groove 11. An inner groove 17 is provided in the gas storage groove 11. The inner groove 17 is matched with the switching ring 31. Heat insulation layers 15 are provided on both sides of the inner wall of the gas storage groove 11. Support plates 18 are fixedly provided on the upper surface of the upper die 1 and the lower surface of the lower die 2. The support plates 18 are provided with clamping grooves 19. The support plates 18 can support the upper die 1 and the lower die 2. The heat insulation layers 15 can prevent heat penetration.

[0027] A T-shaped plate 331 is fixedly provided on the upper surface of the spring rod 33. The T-shaped plate 331 is slidably connected with the T-shaped groove 312. The lower surface of the spring rod 33 is fixedly connected with the upper surface of the bottom groove 14. After the L-shaped rod 342 is pulled down, the L-shaped rod 342 is clamped in the clamping groove 19. At this time, the partition plate 32 is lower than the communication groove 16, so that the heat can enter the outer ring groove 12 and the inner ring groove 13.

[0028] The heat insulation layers 15 and the heat insulation sleeves 325 are made of rock wool. The rock wool can effectively insulate heat and prevent heat from entering the chamber that needs to be heated.

[0029] Specific;When the tire needs to be produced, the upper mold 1 is combined with the lower mold 2, then the tire material enters the mold cavity between the upper mold 1 and the lower mold 2 from the inside of the liquid inlet pipe 4, then the heat energy is transported from the air inlet pipe 5 to the gas storage groove 11, at this time the tire is heated in the upper mold 1 and the lower mold 2, because the inner and outer diameters of the tire are different, when the outer diameter of the tire needs to be heated separately, at this time the rotating L rod 342 makes the L rod 342 separate from the clamping groove 19, the spring rod 33 vertically moves with the switching ring 31 and the rotating rod 34, then the rotating L rod 342 is counterclockwise, the ladder block 324 in the storage groove 321 is clamped into the communication groove 16 at the inner ring groove 13, the inner ring groove 13 is isolated from the gas storage groove 11, and the heat insulation sleeve 325 and the heat insulation layer 15 can effectively prevent the heat energy from entering the inner ring groove 13, at this time the heat energy is located in the outer ring groove 12, at this time the heat energy heats the inner diameter of the tire, and vice versa, the ladder block 324 is clamped into the communication groove 16 in the outer ring groove 12, at this time the outer diameter of the tire can be heated, thereby improving the quality of the tire.

[0030] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0031] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An inner wall airway heating type tire mold comprising an upper mold (1) and a lower mold (2), the upper mold (1) and the lower mold (2) being mirror-imaged, characterized in that: The upper mold (1) and the lower mold (2) are internally provided with a gas storage groove (11), an outer ring groove (12), an inner ring groove (13) and a communication groove (16), the gas storage groove (11) is in communication with the outer ring groove (12) and the inner ring groove (13) through the communication groove (16), the gas storage groove (11) is internally provided with a switching assembly (3) for switching a heating path, the communication groove (16) at the outer ring groove (12) is staggered with the communication groove (16) at the inner ring groove (13), the upper mold (1) and the lower mold (2) are externally provided with an air inlet pipe (5), the upper mold (1) and the lower mold (2) are provided with a liquid inlet pipe (4) therebetween, and the gas storage groove (11) is in communication with the air inlet pipe (5); the switching assembly (3) comprises a switching ring (31) arranged in the gas storage groove (11), a baffle (32) fixedly installed on the upper surface of the switching ring (31), a spring rod (33) arranged on the lower surface of the switching ring (31), a rotating rod (34) movably arranged in the upper mold (1), and the baffle (32) is matched with the gas storage groove (11).

2. An internally heated tyre mold according to claim 1, characterized in that: The inner wall of the switching ring (31) is fixedly installed with an inner tooth (311) and a bottom plate (313), the lower surface of the inner tooth (311) is fixedly installed with the upper surface of the bottom plate (313), the bottom of the switching ring (31) is provided with a T-shaped ring groove (312), the outer surface of the rotating rod (34) is sleeved with a gear (341), the lower surface of the gear (341) is attached to the upper surface of the bottom plate (313), the gear (341) is engaged with the inner tooth (311), and the lower surface of the rotating rod (34) is fixedly installed with an L-shaped rod (342), and the L-shaped rod (342) is located above the upper mold (1) and below the lower mold (2) respectively.

3. An internally heated tyre mold according to claim 2, characterized in that: The baffle (32) is provided with a receiving groove (321) penetrating on one side, the inner wall of the receiving groove (321) is fixedly installed with a connecting plate (322), one end of the connecting plate (322) is fixedly installed with a bidirectional spring rod (323), both ends of the bidirectional spring rod (323) are fixedly installed with ladder blocks (324), the ladder blocks (324) are matched with the communication groove (16), and the outer surface of the ladder blocks (324) is sleeved with a heat insulation sleeve (325).

4. An internally heated tire mold according to claim 2 wherein: The bottom of the gas storage groove (11) is provided with a bottom groove (14), the inside of the gas storage groove (11) is provided with an inner groove (17), the inner groove (17) is matched with the switching ring (31), both sides of the inner wall of the gas storage groove (11) are provided with a heat insulation layer (15), the upper surface of the upper mold (1) and the lower surface of the lower mold (2) are fixedly installed with a supporting plate (18), and the supporting plate (18) is provided with a clamping groove (19) on one side.

5. An internally heated tyre mold according to claim 4, characterized in that: The upper surface of the spring rod (33) is fixedly installed with a T-shaped plate (331), the T-shaped plate (331) is slidably connected with the T-shaped ring groove (312), and the lower surface of the spring rod (33) is fixedly connected with the upper surface of the bottom groove (14).

6. An internally heated tire mold according to claim 4 wherein: The heat insulation layer (15) and the heat insulation sleeve (325) are both components made of rock wool.

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