CN211492611U - Injection mold - Google Patents

Abstract

The utility model provides an injection mold, including the mould body, this internal pouring chamber and the pouring runner of being equipped with of this mould, this internal isolation passageway that still is equipped with and the perpendicular just intercommunication of pouring runner of this mould, should keep apart and slide in the passageway and be equipped with the push pedal, the liquid hole has been seted up to the push pedal, the inner distance of passageway is kept apart to the push pedal the inner is greater than the liquid hole diameter, this internal heating element that is provided with around the pouring runner of mould. An injection mold in, keep apart pouring cavity and pouring runner through the push pedal will, and then realize separating the stoste of moulding plastics in product and the pouring runner, reduce the product material to the size, reduced manufacturing cost.

Description

Injection mold

Technical Field

The utility model belongs to the production field of moulding plastics especially relates to an injection mold.

Background

It is known that the production and recycling of plastic products using conventional molds is a serious problem. After the injection molding of a common mold, a product needs to trim a sprue and cut off a material handle. The recycled material is required to be selected manually, crushed and dyed, plasticized and granulated and the like. This requires a large expenditure of manpower and material resources. For producing small-sized precise products, the volume of the material handle is usually several times larger than that of the products, the recovery workload is particularly large, and the mass of the recovered material is always lower than the original mass and can only be degraded for use. For plastics with poor flowability and good toughness, recycling is also difficult.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is directed to an injection mold for realizing injection molding without flow channel.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the utility model provides an injection mold, includes the mould body, this internal pouring runner that is equipped with the pouring chamber and communicates with this pouring chamber of this mould, this internal department of closing on pouring chamber position of this mould still is equipped with the isolation passageway perpendicular and that communicate with the pouring runner, keep apart the inner blind end of passageway, should keep apart the passageway outer end and extend the setting of mould body, should keep apart the intraductal push pedal that slides and be equipped with of passageway, the push pedal is offered the liquid hole of crossing that the diameter is greater than pouring runner diameter, crosses liquid hole and pouring runner when concentric, and the inner distance of passageway is greater than liquid hole diameter apart from keeping apart to the push pedal inner end, and the push pedal outer end is stretched out by keeping apart the passageway outer end, this.

Further, the push plate is of a ceramic or asbestos plate structure.

Furthermore, two side faces of the isolation channel, which are opposite to the push plate, are respectively embedded with a metal sealing gasket arranged around the pouring runner.

Furthermore, a heat insulation ring is arranged in the die body around the pouring runner, and the inner end of the heat insulation ring is close to the position of the isolation channel.

Further, the heat insulation ring is a ceramic heat insulation ring or an asbestos heat insulation ring.

Further, the heating element is of a tubular heating rod or heating ring structure.

Compared with the prior art, an injection mold have following advantage:

an injection mold in, this internal push pedal that corresponds with the pouring runner that has set up of mould, remove through the push pedal and realize pouring runner and pouring chamber break-make, keep apart pouring chamber and pouring runner promptly after the pouring is accomplished, and then realize separating the stoste of moulding plastics in product and the pouring runner, reduce the product material to the size, production cost is reduced, simultaneously because in this design, set up heating element around the pouring runner, to remaining in the pouring runner when realizing the injection molding once more, the stoste of moulding plastics that solidifies heats into liquid state and then realizes the purpose of moulding plastics once more, this mould simple structure realizes commodity circulation to injection molding production.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

FIG. 1 is a schematic structural diagram of an injection mold according to the present embodiment in an injection molding state;

fig. 2 is a schematic diagram of a state of the injection mold according to the embodiment after completion of injection molding.

Description of reference numerals:

1-a mould body; 11-pouring a runner; 12-isolating the channel; 13-casting cavity; 2-pushing the plate; 21-liquid passing holes; 3-heat insulation ring; 4-a heating element; 5-metal sealing gasket.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1 and 2, an injection mold, including mold body 1, this mold body is the metalwork, be equipped with pouring cavity 13 in this mold body 1 and with the pouring runner 11 of this pouring cavity 13 intercommunication, pour into liquid plastics stoste into in pouring cavity 13 through pouring runner 11, in this embodiment, pouring runner 11 is vertical to be set up in 1 top position department of mold body, still be equipped with in this mold body 1 with pouring runner 11 perpendicular intercommunication keep apart passageway 12, just keep apart 12 crosscut pouring runner 11 settings of passageway, keep apart 12 level settings of passageway, just keep apart passageway 12 and close on pouring cavity 13 and set up. Keep apart the passageway 12 inner and be the blind end, should keep apart the setting of passageway 12 outer end extension mould body 1, should keep apart and slide in the passageway 12 and be equipped with push pedal 2, push pedal 2 is ceramic or asbestos plate spare structure, and push pedal 2 thickness and the setting of keeping apart passageway 12 self high matching, in this embodiment, keep apart passageway 12 and push pedal thickness and set for 3-5mm thickness, as long as play and separate pouring runner 11 and pouring chamber 13 just can. The push plate 2 is provided with a liquid passing hole 21 with the diameter larger than that of the pouring runner 11 at the position close to the inner end, when the liquid passing hole 21 and the pouring runner 11 are concentric, the plastic stock solution is injected into the pouring cavity 13 through the pouring runner 11, and the distance between the inner end of the push plate 2 and the inner end of the isolation channel 12 is larger than the diameter of the liquid passing hole 21. For convenient operation, the outer end of the push plate 2 extends out of the outer end of the isolation channel 12. After pouring, under the action of external force, the push plate 2 moves inwards until the liquid passing hole 21 moves inwards to be separated from the pouring runner 11, at the moment, the push plate 2 separates the pouring runner 11 from the pouring cavity 13, and the plastic stock solution in the pouring runner 11 is separated from the stock solution in the pouring cavity 13, wherein a small part of the plastic stock solution is brought into the separation channel 12 by the liquid passing hole 21, and when the next pouring push plate 2 moves outwards, the semi-condensed stock solution is taken out. Before the next injection molding, the heating element 4 is firstly opened to heat the plastic stock solution left in the casting runner 11, and the heat is transferred to the part of the stock solution moved out along with the liquid passing hole 21.

In this embodiment, in order to improve the service life or the number of times of use of the mold, the isolation channel is opposite to two side surfaces of the push plate 2, that is, a metal sealing gasket 5 is embedded in each of the upper end surface and the lower end surface of the isolation channel 12, and the metal sealing gasket 5 is arranged around the pouring runner 11, so that a hard sealing structure is formed by the metal sealing gasket 5 and the push plate 2, and the plastic stock solution is prevented from entering the isolation channel 12.

In this embodiment, in order to prevent the heat from being dissipated from the mold body 1 when the heating element 4 is heated, a heat insulation ring 3 is disposed in the mold body 1 around the pouring runner 11, the heat insulation ring 3 is a ceramic heat insulation ring or an asbestos heat insulation ring, and the inner end of the heat insulation ring 3 is close to the position of the isolation channel 12.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The utility model provides an injection mold, includes mould body (1), is equipped with pouring cavity (13) and pouring runner (11) that communicate with this pouring cavity (13) in this mould body (1), its characterized in that: this mould body (1) is inside to be close to pouring cavity (13) position department and still be equipped with perpendicular just the isolation passageway (12) that communicates of pouring runner (11), keep apart passageway (12) inner and be the blind end, should keep apart the passageway outer end and extend mould body (1) setting, should keep apart and slide in passageway (12) and be equipped with push pedal (2), push pedal (2) are seted up the diameter and are greater than liquid hole (21) of crossing of pouring runner (11) diameter, when crossing liquid hole (21) and pouring runner (11) and be concentric, push pedal (2) inner is greater than liquid hole (21) diameter apart from keeping apart passageway (12) inner distance, and push pedal (2) outer end is stretched out by keeping apart passageway (12) outer end, it is provided with heating element (4) around pouring runner (11) in mould body (1).

2. An injection mold according to claim 1, wherein: the push plate (2) is of a ceramic plate or asbestos plate structure.

3. An injection mold according to claim 1, wherein: two side surfaces of the isolation channel, which are opposite to the push plate (2), are respectively embedded with a metal sealing gasket (5) arranged around the pouring runner (11).

4. An injection mold according to claim 1, wherein: a heat insulation ring (3) is arranged in the die body (1) around the pouring runner (11), and the inner end of the heat insulation ring (3) is close to the position of the isolation channel (12).

5. An injection mould according to claim 4, characterized in that: the heat insulation ring (3) is a ceramic heat insulation ring or an asbestos heat insulation ring.

6. An injection mold according to claim 1, wherein: the heating element (4) is of a tubular heating rod or heating ring structure.

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