Exhaust plug and tire mold

Abstract

The utility model relates to the technical field of tire molds, in particular to a venting plug and a tire mold, the venting plug comprises a sleeve shell and a sleeve core, the sleeve shell and the sleeve core are detachably connected in a threaded fit or elastic pressing mode, the ends of the sleeve shell and the sleeve core are flush after the sleeve shell and the sleeve core are matched, the sleeve core is of a columnar structure, and the sleeve core is of a hollow structure. The sleeve core is made of breathable steel, and tiny exhaust holes are fully distributed in the sleeve core; the sleeve core and the sleeve shell are detachably connected, the connecting and fixing mode is simple, dismounting and mounting are fast, the overhaul time of the venting plug is greatly shortened, time and labor are saved, and the maintenance efficiency is improved; and the sleeve core can be detached and replaced independently, so that the cost is saved, the problem that a tire mold is easily damaged when the venting plug is detached is solved, and the maintenance is safer and more efficient.

Description

TECHNICAL FIELD

[0001] The utility model relates to tire mould technical field, concretely is a kind of exhaust plug and tire mould. BACKGROUND

[0002] Exhaust plug on tire mould is mainly used to help the gas in mould to discharge in time, ensure the quality of mould injection product.Exhaust plug is a kind of auxiliary tool for mould exhaust, can be installed in the parting surface of mould or other positions needing exhaust, effectively solve the gas retention problem in mould, prevent the formation of air hole, air bag.

[0003] The existing exhaust plug is mostly integrated structure, needs to be ejected using special tool after being damaged, and the replacement is time-consuming and laborious, and the tire mould is easily damaged when being disassembled. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of exhaust plug and tire mould for the above-mentioned deficiencies existing in prior art, greatly shorten the overhaul time of exhaust plug, save time and effort, improve maintenance efficiency;Avoid the problem that tire mould is easily damaged when disassembling exhaust plug, make overhauling more safe and efficient.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] An exhaust plug, including shell and sleeve core, characterized by: the detachable connection mode of thread cooperation or elastic compression is used between the shell and sleeve core, the end of shell and sleeve core is flush after cooperation, the sleeve core is columnar structure, and the sleeve core is made of breathable steel material and is filled with small exhaust holes inside.

[0007] Preferably, a sealing ring is arranged between the sleeve core and the shell, and the gap width between the sleeve core and the shell is 0.01-0.03 mm.

[0008] Preferably, a fixing groove for mounting the sealing ring is arranged on the outer side wall of the sleeve core or the inner wall of the shell, and the depth of the fixing groove is less than the diameter of the sealing ring.

[0009] Preferably, the number of the sealing ring is 1-3.

[0010] Preferably, an internal thread is arranged on the inner wall of the shell, and an external thread matched with the internal thread is arranged on the outer side wall of the sleeve core.

[0011] Preferably, a limiting piece is arranged at the lower end of the internal thread and matched with the bottom of the external thread.

[0012] Preferably, the limiting piece is a limiting block or a limiting ring.

[0013] Preferably, the threaded connection between the sleeve core and the sleeve shell is arranged at any position of the fitting surface of the sleeve core and the sleeve shell.

[0014] Preferably, the end of the sleeve core is provided with a dismounting groove.

[0015] A tire mold comprising the exhaust plug.

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] 1、the utility model discloses a detachable connection mode between the sleeve core and the sleeve shell, and the connecting and fixing mode is simple, and the dismounting is quick, greatly shortens the maintenance time of the exhaust plug, saves time and effort, improves the maintenance efficiency, and the sleeve core can be individually dismounted and replaced, saves the cost, avoids the problem that the tire mold is easily damaged when the exhaust plug is dismounted, makes the maintenance safer and more efficient.

[0018] 2、the utility model discloses that the sealing ring cooperation is arranged between the sleeve core and the sleeve shell, and the cost is low, the structure is simple, the dismounting is quick, time and effort are saved, and the operation efficiency is greatly improved.

[0019] 3、the utility model discloses that the end of the sleeve shell and the sleeve core is flush after cooperation, can prevent the concave printing from being formed on the tire surface, ensures the product surface flat, and improves product quality.

[0020] 4、the utility model discloses that the sleeve core and the sleeve shell adopt threaded connection, and the installation position of the sleeve core is limited through the limiting piece, not only increases the convenience of installation, but also improves the installation precision of the sleeve core.

[0021] 5、the utility model discloses that the dismounting groove is arranged at the end of the sleeve core, greatly increases the convenience of sleeve core dismounting, and improves the dismounting efficiency.

[0022] 6、the utility model discloses the tire mold adopts the exhaust plug of the application, and the maintenance of the exhaust plug of the tire mold is facilitated, and the maintenance is convenient and safe. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the structural schematic diagram of the utility model embodiment one;

[0024] Figure 2 It is the structural schematic diagram of the utility model embodiment two

[0025] Figure 3 It is Figure 2 the enlarged structural schematic diagram of A place;

[0026] In the drawing: 1-sleeve shell;101-inner thread;102-limiting block;2-sleeve core;201-outer thread;3-dismounting groove;4-fixing groove;5-sealing ring. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with 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 the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0028] As shown in Figure 1 , Figure 2 , an exhaust plug comprises a sleeve shell 1 and a sleeve core 2, the sleeve shell 1 and the sleeve core 2 are connected in a detachable manner, the sleeve core 2 can be replaced individually, the sleeve shell 1 and the sleeve core 2 are of the same length, and the end portions of the sleeve shell 1 and the sleeve core 2 are flush after being matched, so that the flatness of the tire surface can be ensured and the product quality can be improved when the tire is manufactured. The sleeve core 2 is of a columnar structure, the sleeve shell 1 is made of steel material, and the sleeve core 2 is made of breathable steel material, which is filled with small exhaust holes inside, so that the effect of running gas without running rubber can be achieved.

[0029] The end portion of the sleeve core 2 is provided with a dismounting groove 3, so that the sleeve core 2 can be conveniently dismounted.

[0030] In the application, the connecting mode of the sleeve shell 1 and the sleeve core 2 mainly has two modes:

[0031] Embodiment one,

[0032] As shown in Figure 1 , the sleeve shell 1 and the sleeve core 2 are connected in a detachable and elastic pressing mode.

[0033] The sealing ring 5 is arranged between the sleeve core 2 and the sleeve shell 1, the number of the sealing ring 5 is 1-3, the sealing ring 5 is selected from a flexible sealing ring 5 resistant to high temperature or a steel wire coil with outer fluorine rubber and inner core, the sleeve core 2 can be a cylinder or a square column structure, and the gap width between the sleeve core 2 and the sleeve shell 1 is 0.01-0.03 mm.

[0034] In order to ensure the firmness of the fixing between the sleeve core 2 and the sleeve shell 1, the number of the sealing ring 5 can be two or three.

[0035] In order to realize detachable replacement of the sealing ring 5, a fixing groove 4 for mounting the sealing ring 5 is arranged on the outer side wall of the sleeve core 2 or the inner wall of the sleeve shell 1, the depth of the fixing groove 4 is smaller than the diameter of the sealing ring 5, the sealing ring 5 can be fixed, and the pressing and fixing between the sleeve core 2 and the sleeve shell 1 can be realized. The number of the fixing groove 4 and the sealing ring 5 corresponds to each other, and one sealing ring 5 is mounted in one fixing groove 4.

[0036] When dismounting, a thin stick, screwdriver or the like can be used to be placed on the dismounting groove 3, and the sleeve core 2 is pushed out from the sleeve shell 1.

[0037] Embodiment two,

[0038] As Figure 2 shown, the sleeve shell 1 and the sleeve core 2 are connected in a detachable manner through thread cooperation.

[0039] The inner wall of the sleeve shell 1 is provided with an inner thread 101, and the outer side wall of the sleeve core 2 is provided with an outer thread 201 matched with the inner thread 101.

[0040] In order to ensure that the sleeve core 2 is flush with the end of the sleeve shell 1, as Figure 3 shown, a limiting piece matched with the bottom of the outer thread 201 is arranged at the lower end of the inner thread 101, and the installation position of the sleeve core 2 is limited through the limiting piece, which not only increases the convenience of installation, but also improves the installation accuracy of the sleeve core 2.

[0041] The limiting piece is a limiting block 102 or a limiting ring, and the limiting block 102 can be one or more.

[0042] The gap width between the sleeve core 2 and the sleeve shell 1 which is not thread cooperated is 0.01-0.03mm.

[0043] The thread connection between the sleeve core 2 and the sleeve shell 1 is arranged at any position of the matching surface, for example, it can be arranged at the upper part, the middle part or the lower part of the sleeve shell 1, and it is recommended to be arranged at the middle position, and the connection is more stable, or the thread connection is arranged from top to bottom.

[0044] The dismounting groove 3 is a square groove, a straight groove, a cross groove or a hexagonal groove, etc., and the sleeve core 2 can be dismounted by means of a screwdriver, and when dismounting, the sleeve core 2 can be dismounted by rotating the sleeve core 2 through cooperation of the screwdriver and the dismounting groove 3, which is simple and fast.

[0045] Embodiment three,

[0046] In the present application, a tire mold is also included, the exhaust plug of the present application is installed in the exhaust hole of the tire mold, and the sleeve shell 1 and the exhaust hole are cooperated in interference. The exhaust plug of the present application facilitates the maintenance of the exhaust plug of the tire mold, and the maintenance is convenient and safe.

[0047] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application belong to the scope of the claims of the present application and the equivalent technology, the present application also intends to include these modifications and variations.

Claims

1. An air vent plug comprising a sleeve and a core, characterised in that: The detachable connection between the sleeve shell and the sleeve core is achieved by screwing or elastic compression, the end of the sleeve shell is flush with the sleeve core after being matched, the sleeve core is in a columnar structure, the sleeve core is made of air-permeable steel and is internally filled with small exhaust holes.

2. A vent plug as defined in claim 1, wherein: A sealing ring is arranged between the sleeve core and the sleeve shell, and the gap width between the sleeve core and the sleeve shell is 0.01-0.03mm.

3. A vent plug as defined in claim 2, wherein: A fixing groove for mounting the sealing ring is arranged on the outer sidewall of the sleeve core or the inner wall of the sleeve shell, and the depth of the fixing groove is less than the diameter of the sealing ring.

4. A vent plug as defined in claim 2, wherein: The number of the sealing rings is 1-3.

5. A vent plug as defined in claim 1, wherein: An inner thread is arranged on the inner wall of the sleeve shell, and an outer thread matched with the inner thread is arranged on the outer sidewall of the sleeve core.

6. A vent plug as defined in claim 5, wherein: A limiting piece matched with the bottom of the outer thread is arranged at the lower end of the inner thread.

7. A vent plug as defined in claim 6, wherein: The limiting piece is a limiting block or a limiting ring.

8. A vent plug as defined in claim 5, wherein: The threaded connection between the sleeve core and the sleeve shell is arranged at any position of the matching surface of the sleeve core and the sleeve shell.

9. A vent plug as defined in claim 1, wherein: A dismounting groove is arranged at the end of the sleeve core.

10. A tire mold characterized by: An exhaust plug comprising any one of claims 1-9.

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