CN206406393U - A movable thimble type exhaust mold - Google Patents

Abstract

The utility model discloses a movable thimble type exhaust mould, which comprises a movable mould and a fixed mould, a movable mould core arranged on the movable mould, a fixed mould core arranged on the fixed mould, a plurality of independent mould cavities are formed between the movable mould core and the fixed mould core, and a thimble is arranged below the mould cavity, and is characterized in that a thimble main body comprises a first pipe body and a second pipe body which are of an integrated structure, wherein the first pipe body is arranged at the front part, the second pipe body is arranged at the rear part of the first pipe body, the diameter of the first pipe body is smaller than that of the second pipe body, a vent hole is formed between the outer side of the first pipe body and the inner side of a mould thimble placing hole, and the vent hole is communicated with the mould cavity; the outside of second body is provided with from top to bottom and is the heliciform air discharge duct, air discharge duct and bleeder vent intercommunication on the second body. The utility model discloses can discharge mould die cavity waste gas fast, and the difficult jam in exhaust bar hole, the clearance consuming time that does not need during the use can improve production efficiency and product quality.

Description

A movable thimble type exhaust mold

technical field

The utility model relates to the technical field of moulds, in particular to a movable thimble type exhaust mould.

Background technique

In the existing technology, the injection mold will produce gas during the production process, and the existence of gas in the mold will affect the product quality, which requires an exhaust structure in the ejector pin to complete the exhaust technology during the production process of the mold The problem is that the current mold uses venting holes as the main technical means when setting the venting thimble, but the problem with these structures is that during use, the venting holes are easy to block and affect the normal exhausting, which is a further step affect the production quality of the product.

The technical defects in the exhaust thimble structure of the mold in the prior art have become urgent technical problems to be solved by those skilled in the art.

Utility model content

The utility model aims at the deficiencies in the prior art, and provides a movable thimble type exhaust mold with smooth and rapid exhaust and no exhaust pipe blocked.

For realizing above-mentioned object, the technical scheme that the utility model adopts is:

A movable thimble type exhaust mold, including a movable mold and a fixed mold, a movable mold core arranged on the movable mold, a fixed mold core arranged on the fixed mold, and a mold core formed between the movable mold core and the fixed mold core. A plurality of independent mold cavities, a thimble is arranged under the mold cavity, and the main body of the thimble includes a first tube body and a second tube body of an integrated structure, wherein the first tube body is arranged at the front, and the second tube body It is arranged at the rear of the first pipe body, the diameter of the first pipe body is smaller than the diameter of the second pipe body, and an air vent is formed between the outside of the first pipe body and the inside of the mold thimble placement hole , the vent hole communicates with the mold cavity on the mold; the outer side of the second pipe body is provided with a spiral exhaust groove from top to bottom, and the exhaust groove on the second pipe body communicates with the vent hole .

As a further improvement of the present invention, the diameter of the first pipe body on the thimble is 0.02 to 0.05 mm smaller than the diameter of the second pipe body.

As a further improvement of the utility model, the length of the second tube body on the thimble is 6 to 8 times the length of the first tube body.

As a further improvement of the utility model, the cross section of the exhaust groove on the second pipe body is an arc-shaped groove.

As a further improvement of the utility model, the exhaust groove on the second pipe body has a groove width of 3 to 5 mm and a groove depth of 0.05 to 0.1 mm.

The utility model has the advantages that: in the movable thimble type exhaust mold of the present utility model, the thimble main body includes a first pipe body and a second pipe body with an integrated structure, wherein the first pipe body is arranged at the front part, and the second pipe body It is arranged at the rear of the first pipe body. The diameter of the first pipe body is smaller than the diameter of the second pipe body. A vent hole is formed between the outside of the first pipe body and the inside of the hole where the thimble is placed in the mold. The mold cavity is connected; the outer side of the second pipe body is provided with spiral exhaust grooves from top to bottom, and the exhaust grooves on the second pipe body communicate with the air holes. Through the above design, the gas in the mold cavity enters the exhaust groove on the thimble through the vent hole, the gas is discharged from top to bottom along the exhaust groove, and finally dissipates at the end of the exhaust groove on the second pipe body.

The utility model can quickly and smoothly discharge the mold cavity exhaust gas in the mold through the optimized structure design, and the exhaust strip holes are not easy to block, and do not need time-consuming cleaning during use, which improves the production efficiency and product quality.

In order to more clearly illustrate the structural features and functions of the utility model, it will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is the structural schematic diagram of movable thimble type exhaust mold of the present utility model;

Fig. 2 is the structural representation of thimble 4 of the utility model;

Fig. 3 is an assembly drawing of the thimble 4 of the present invention and the hole 6 for placing the mold thimble.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Referring to accompanying drawings 1 to 3, the movable thimble type exhaust mold provided in this embodiment includes a movable mold 1 and a fixed mold 2, a movable mold core 10 arranged on the movable mold 1, and a movable mold core 10 arranged on the fixed mold 2. The fixed mold core 20, a plurality of independent mold cavities 3 are formed between the movable mold core 10 and the fixed mold core 20, a thimble 4 is arranged below the mold cavity 3, and the main body of the thimble 4 includes a first tubular body 41 and a The second pipe body 42, wherein the first pipe body 41 is arranged at the front part, and the second pipe body 42 is arranged at the rear part of the first pipe body 41, and the diameter size of the first pipe body 41 is smaller than the diameter size of the second pipe body 42 The air vent 5 is formed between the outside of the first pipe body 41 and the inside of the mold thimble placement hole 6, and the air vent 5 communicates with the mold cavity 3 on the mould; the outside of the second pipe body 42 is provided with spiral holes from top to bottom Shaped exhaust groove 420, the exhaust groove 420 on the second pipe body 42 communicates with the vent hole 5.

As a further improvement of the present invention, the diameter of the first tube body 41 on the thimble 4 is 0.02 to 0.05 mm smaller than the diameter of the second tube body 42 . The length of the second tube body 42 on the thimble 4 is 6 to 8 times the length of the first tube body 41 . The cross-section of the exhaust groove 420 on the second pipe body 42 is an arc-shaped groove. The exhaust groove 420 on the second pipe body 42 has a groove width of 3 to 5 mm and a groove depth of 0.05 to 0.1 mm.

Through the above design, the gas in the mold cavity 3 enters the exhaust groove 420 on the thimble 4 through the vent hole 5, and the gas is discharged from top to bottom along the exhaust groove 420, and finally enters the exhaust groove on the second pipe body 42 420 end dissipated.

The utility model can quickly and smoothly discharge the mold cavity waste gas in the mould, the exhaust strip hole is not easy to be blocked, and does not need time-consuming cleaning during use, thereby improving the production efficiency and product quality.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model in any form. Any person familiar with the art, without departing from the scope of the technical solution of the utility model, can use the method and technical content disclosed above to make many possible changes and modifications to the technical solution of the utility model, or modify it into an equivalent change, etc. effective example. Therefore, all equivalent changes made according to the shape, structure and principle of the utility model that do not deviate from the technical solution of the utility model should be covered within the protection scope of the utility model.

Claims (5)

1. a kind of Movable ejector pin type exhaust mould, including dynamic model and cover half, are arranged on the dynamic model core rod on dynamic model, are arranged on cover half On cover half core rod, form multiple independent die cavitys between dynamic model core rod and cover half core rod, thimble be provided with below die cavity, it is special Levy and be, the thimble main body includes the first body and the second body of integrative-structure, wherein before first body is arranged on Portion, second body is arranged on the rear portion of the first body, and the diameter dimension of first body is less than second body Diameter dimension, constitutes air-vent between the outside of first body and the inner side of die ejector pin putting hole, the air-vent with Die cavity connection on mould；The outside of second body is from top to bottom provided with spiral air discharge duct, second pipe Air discharge duct on body is connected with air-vent.

2. Movable ejector pin type exhaust mould according to claim 1, it is characterised in that the first pipe diameter on the thimble Size is than the second pipe diameter size small 0.02 to 0.05mm.

3. Movable ejector pin type exhaust mould according to claim 1 or claim 2, it is characterised in that the second body on the thimble Length is 6 to 8 times of the first tube length.

4. Movable ejector pin type exhaust mould according to claim 3, it is characterised in that air discharge duct on second body Cross section is the groove of circular arc.

5. Movable ejector pin type exhaust mould according to claim 4, it is characterised in that air discharge duct on second body Groove width is 3 to 5mm, and groove depth is 0.05 to 0.1mm.