CN213972346U - Small-point gate - Google Patents

Abstract

The utility model discloses a small spot runner, say including advancing the sizing material, still including setting up it says that the branch of going out the end of gluing advances gluey mouth to advance the sizing material, branch advances gluey mouth and is three horn shapes and distributes it says to advance the sizing material, branch advances gluey mouthful downside shaping and has injection moulding product. The utility model discloses a to advance to glue the mouth and have original single-point to advance to glue the mouth and change into three-point branch and advance to glue the mouth, and three punishment branch advance glue mouthful advance glue the area with the single-point advance glue mouthful advance the area the same, guarantee to advance gluey volume unchangeably, make the product fill, reduce single runner cross-section simultaneously, the plastic remains when making the broken stub bar and reduces, does not have even to remain.

Description

Small-point gate

Technical Field

The utility model relates to an injection moulding field especially relates to a little runner.

Background

Plastics are a class of synthetic polymeric materials having plasticity. It, synthetic rubber and synthetic fiber form three indispensable synthetic materials in daily life. Specifically, the plastic is prepared by using natural or synthetic resin as a main component, adding various additives, and molding into a certain shape under certain conditions such as temperature, pressure and the like; after the plastic is hot-melted, the plastic needs to enter a die through a glue inlet in an extruding mode, a stub bar exists after the product is formed, a runner (stub bar) and a finished product are broken when the die is opened and separated, plastic residues can protrude, the function of the product is affected, and the product needs to be cut off through post-processing. The larger the gate size, the higher the residual protrusion, and the smaller the gate size, the more difficult it is to fill the product.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a small-spot gate for solving the above problems.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

the utility model provides a small-spot runner, is including advancing the sizing material way, still including setting up it advances jiao kou to advance the branch that the sizing material says out the end of gluing, branch advances jiao kou is the triangle-shaped distribution and is in it says to advance the sizing material, branch advances jiao kou downside shaping and has the product of moulding plastics.

Further setting: the center position of each branch glue inlet is positioned on the same circumference, and the branch glue inlets are conical.

So set up, make the even follow of raw materials in advancing the sizing material says the branch advances jiao kou and extrudes, guarantees that the atress is even.

Further setting: the sum of the gate areas of the branch glue inlets is equal to the gate area of the single-point glue inlet.

So set up, guarantee to advance gluey volume with when the glue mouth is advanced to the single-point, avoid the product to fill the difficulty.

Further setting: the sprue surface of each branch glue inlet is flush.

By the arrangement, the glue inlet point of each branch glue inlet is stable and smooth.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the glue inlet is changed into a three-point branch glue inlet by the original single-point glue inlet, and the glue inlet area of the three-point branch glue inlet is the same as the glue inlet area of the single-point glue inlet, so that the glue inlet amount is unchanged, a product can be filled, the cross section of a single pouring gate is reduced, and the plastic residue is reduced or even no residue is left when the stub bar is broken.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is an isometric view of a small spot gate in accordance with the present invention;

fig. 2 is a schematic bottom view of a small-point gate according to the present invention;

FIG. 3 is a schematic view of a current gate configuration;

fig. 4 is a schematic bottom view of the current gate.

The reference numerals are explained below:

1. a glue feeding channel; 2. a branch glue inlet; 3. injection molding a product; 4. and a single-point glue inlet.

Detailed Description

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 further explained with reference to the accompanying drawings:

as shown in fig. 1-2, a small-spot gate comprises a glue inlet channel 1 and a branch glue inlet 2 arranged at a glue outlet end of the glue inlet channel 1, wherein the branch glue inlet 2 is distributed in the glue inlet channel 1 in a triangular shape, and an injection product 3 is molded at the lower side of the branch glue inlet 2.

Preferably: the center positions of the branch glue inlets 2 at each position are positioned on the same circumference, and the branch glue inlets 2 are conical, so that raw materials in the glue inlet channel 1 are uniformly extruded from the branch glue inlets 2, and uniform stress is ensured; as shown in fig. 2 and 4, the sum of the gate areas of the branch glue inlets 2 is equal to the gate area of the single-point glue inlet 4, so that the glue inlet amount is the same as that of the single-point glue inlet 4, and the difficulty in filling the product is avoided; the sprue surface of each branch glue inlet 2 is parallel and level, so that the glue inlet points of each branch glue inlet 2 are stable and smooth.

The utility model discloses theory of operation and use flow: the glue inlet is changed from the original single-point glue inlet 4 into the three-point branch glue inlet 2, the glue inlet area of the three-point branch glue inlet 2 is the same as the glue inlet area of the single-point glue inlet 4, the glue inlet amount is guaranteed to be unchanged, products can be filled, the cross section of a single pouring gate is reduced, and plastic residues are reduced or even no residues are left when the stub bar is broken.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims (4)

1. The utility model provides a small-spot runner, includes into sizing material way (1), its characterized in that: still including setting up it advances jiao kou (2) to advance branch that the sizing material says (1) goes out to glue the end, branch advances jiao kou (2) is the triangle-shaped distribution and is in it says (1) to advance the sizing material, branch advances jiao kou (2) downside shaping and has injection moulding product (3).

2. A small point gate as claimed in claim 1, wherein: the center of each branch glue inlet (2) is positioned on the same circumference, and the branch glue inlets (2) are conical.

3. A small point gate as claimed in claim 1, wherein: the sum of the gate areas of the branch glue inlets (2) is equal to the gate area of the single-point glue inlet (4).

4. A small point gate as claimed in claim 1, wherein: the sprue surface of each branch glue inlet (2) is flush.

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