CN214645642U

CN214645642U - Prevent injection mold of weld line production

Info

Publication number: CN214645642U
Application number: CN202023002885.9U
Authority: CN
Inventors: 刘新春
Original assignee: Yueqing Ruifeng Precision Mould Co ltd
Current assignee: Yueqing Ruifeng Precision Mould Co ltd
Priority date: 2020-12-11
Filing date: 2020-12-11
Publication date: 2021-11-09
Anticipated expiration: 2030-12-11

Abstract

The utility model relates to a prevent injection mold of weld line production, including the mould body, this internal shaping chamber that is provided with of mould, this internal corresponding shaping chamber top of mould is provided with the water route pipeline, and the water route pipeline includes along the first pipeline, second pipeline, third pipeline, fourth pipeline that the shaping chamber edge set gradually connected and along the connecting line of product trompil position orientation setting, and the connecting line sets up between first pipeline and third pipeline, and fourth pipeline one end is linked together with the third pipeline, the other end with the connecting line communicates mutually, and the other end of the relative second pipeline of first pipeline links to each other with the inlet tube, and the other end of the relative fourth pipeline of connecting line links to each other with the outlet pipe, and the inlet tube sets up the both sides of mould body with the outlet pipe relatively. Through adopting above-mentioned technical scheme, connecting pipeline sets up along product trompil position direction, can carry out sharp quenching and sharp heating to trompil department and handle, avoids product trompil department surface weld line to appear, reduces the colour difference.

Description

Prevent injection mold of weld line production

Technical Field

The utility model relates to an injection moulding equipment technical field, concretely relates to prevent injection mold of weld line production.

Background

The shells of electronic products such as mobile phones and flat plates are usually produced by adopting an injection molding process, in addition, the shells need to be subjected to tapping treatment during production, when the injection molded products are processed, the tapping part is easy to generate weld line marks, the main reason is heat loss during material flow convergence, and material flow filling is also uneven, so that the weld line marks are generated. Most injection-molded products have high requirements on the appearance of the products, and the appearance quality of the products is seriously influenced by the generation of the product weld lines. How to reduce or eliminate the weld line mark is a difficult problem to consider when injection molding products.

Therefore, there is a need for further improvement of the existing injection mold to avoid the generation of product weld lines.

SUMMERY OF THE UTILITY MODEL

To sum up, for overcoming prior art's not enough, the utility model provides an injection mold that weld line produced is prevented to shaping high quality, easy operation and efficient.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides an injection mold who prevents weld line production, includes the mould body, this internal shaping chamber that is provided with of mould, this internal correspondence of mould becomes the shaping chamber top and is provided with water pipeline, water pipeline includes the edge the shaping chamber edge sets up the first pipeline, second pipeline, third pipeline, fourth pipeline that connect gradually and follows the connecting line that product trompil position orientation set up, connecting line set up in first pipeline with between the third pipeline, fourth pipeline one end with the third pipeline is linked together, the other end with connecting line communicates mutually, first pipeline is relative the other end and the inlet tube of second pipeline link to each other, connecting line is relative the other end and the outlet pipe of fourth pipeline link to each other, the inlet tube with the outlet pipe sets up the both sides of mould body relatively.

Through adopting above-mentioned technical scheme, the water route pipeline links to each other with sharp quenching and rapid heating equipment, for example the temperature machine, after the plastics finished product of shaping intracavity cools off the shaping gradually, because the material stream assembles in trompil department easily, this technical scheme compares in prior art's difference and lies in increasing connecting line, and connecting line sets up along product trompil position direction, can carry out sharp quenching and rapid heating to trompil department and handle, avoids product trompil department surface weld line to appear, reduces the colour difference, reinforcing product surface highlight.

The utility model discloses further set up: the number of the molding cavities is n, n is an integer greater than or equal to 1, n sets of water channel pipelines in the mold body, and the water channel pipelines correspond to the molding cavities one to one.

Through adopting above-mentioned technical scheme, can carry out a plurality of product shaping demolding simultaneously, and compare and adopt single water route to carry out water path circulation among the prior art, the pipeline is longer, and the hydrothermal dispersion is inhomogeneous, the utility model discloses technical scheme adopts a plurality of single tubes to correspond the shaping chamber, and multitube business turn over water simultaneously, cuts short the length of single pipeline, makes water rapid cycle in water path pipeline, and dwell speed is short, and it is faster to heat up the cooling, makes this internal temperature of mould more even simultaneously, and each difference in temperature is less, further improves the quality of product, improves the product percent of pass, prolongs the mould life-span simultaneously.

The utility model discloses further set up: every group waterway pipeline's connection layout is 180 rotatory settings rather than adjacent waterway pipeline, the outlet pipe sets up in same one side with adjacent waterway pipeline's inlet tube, the inlet tube sets up in same one side with adjacent waterway pipeline's outlet pipe.

Through adopting above-mentioned technical scheme, because the fourth pipeline is not directly continuous with first pipeline, there is not direct water route to cover one section position in one side that corresponds the fourth pipeline between consequently connecting pipe and the first pipeline, when this internal a plurality of products coforming of mould, compare in adjacent water route pipeline adoption the same or symmetrical setting, the utility model discloses technical scheme adopts the connection overall arrangement of every group water route pipeline to be 180 rotatory settings rather than adjacent water route pipeline, and outlet pipe and inlet tube interval set up simultaneously for this internal temperature of mould is more even, and pressure is more even, and product shaping effect is better, and structural configuration is more reasonable simultaneously, and is convenient.

The utility model discloses further set up: the distance between the waterway pipeline and the forming cavity is 8-10 mm.

By adopting the technical scheme, when the distance between the water channel pipeline and the forming cavity is 8-10mm, the lower the possibility that a weld line appears on the surface of the opening part of the product is, the smaller the color difference is, and the forming quality is optimal.

The utility model discloses further set up: height differences exist among the connecting pipe, the first pipeline, the second pipeline, the third pipeline and the fourth pipeline.

By adopting the technical scheme, when the surface of the die is not flat, the die is convex or concave, the waterway pipeline adopts a double-layer waterway, namely the first pipeline, the second pipeline, the third pipeline and the fourth pipeline are a layer waterway, the position of the connecting pipe is adjusted along with the convex or concave height of the die to form a height difference with the layer waterway, and the connecting pipe is connected with the fourth pipeline through another pipeline in the vertical direction.

The following describes embodiments of the present invention with reference to the drawings and examples.

Drawings

FIG. 1 is a partial structure diagram of an embodiment of the present invention;

fig. 2 is a partial structure plan view of the embodiment of the present invention;

FIG. 3 is a side view of a partial structure of an embodiment of the present invention

FIG. 4 is a diagram of the structure of the embodiment of the present invention;

reference numerals: 1. the die comprises a die body, 11 parts of a forming cavity, 2 parts of a water channel pipeline, 21 parts of a first pipeline, 22 parts of a second pipeline, 23 parts of a third pipeline, 24 parts of a fourth pipeline, 25 parts of a connecting pipeline, 26 parts of a water inlet pipe and 27 parts of a water outlet pipe.

Detailed Description

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Referring to fig. 1-4, the injection mold for preventing a weld line from being generated in this embodiment includes a mold body 1, a molding cavity 11 is disposed in the mold body 1, a water channel 2 is disposed in the mold body 1 above the molding cavity 11, the water channel 2 includes a first pipeline 21, a second pipeline 22, a third pipeline 23, a fourth pipeline 24 and a connecting pipeline 25 disposed along an edge of the molding cavity 11, the first pipeline 21, the second pipeline 22, the third pipeline 23, the fourth pipeline 24 are sequentially connected to each other, the connecting pipeline 25 is disposed between the first pipeline 21 and the third pipeline 23, one end of the fourth pipeline 24 is communicated with the third pipeline 23, the other end of the fourth pipeline 24 is communicated with the connecting pipeline 25, the other end of the first pipeline 21 opposite to the second pipeline is connected with a water inlet pipe 26, the other end of the connecting pipeline 25 opposite to the fourth pipeline is connected with a water outlet pipe 27, the water inlet pipe 26 and the water outlet pipe 27 are oppositely arranged at two sides of the die body 1.

The embodiment further provides that: the number of the molding cavities 11 is n, n is an integer greater than or equal to 1, n sets of water channel pipelines 2 in the mold body 1, and the water channel pipelines 2 correspond to the molding cavities 11 one to one.

The embodiment further provides that: every group waterway pipeline 2's connection overall arrangement is 180 rotatory settings rather than adjacent waterway pipeline 2, outlet pipe 27 sets up in same one side with adjacent waterway pipeline 2's inlet tube 26, inlet tube 26 sets up in same one side with adjacent waterway pipeline 2's outlet pipe 27.

The embodiment further provides that: the distance between the waterway pipeline 2 and the molding cavity is 118-10 mm.

The embodiment further provides that: the connecting pipes have height differences with the first pipeline 21, the second pipeline 22, the third pipeline 23 and the fourth pipeline 24.

The above-mentioned "between" does not only mean between orientations and positions, but also means between the interactions of different parts.

Although used more herein: the terms of the mould body 1, the forming cavity 11, the water channel 2, the first pipeline 21, the second pipeline 22, the third pipeline 23, the fourth pipeline 24, the connecting pipeline 25, the water inlet pipe 26, the water outlet pipe 27 and the like do not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides an prevent injection mold of weld line production, includes the mould body, its characterized in that: this internal forming cavity that is provided with of mould, this internal correspondence of mould the forming cavity top is provided with water pipeline, water pipeline includes the edge the forming cavity edge sets up the first pipeline, second pipeline, third pipeline, fourth pipeline that connect gradually and follows the connecting line that product trompil position orientation set up, connecting line set up in first pipeline with between the third pipeline, fourth pipeline one end with the third pipeline is linked together, the other end with connecting line communicates mutually, first pipeline is relative the other end of second pipeline links to each other with the inlet tube, connecting line is relative the other end of fourth pipeline links to each other with the outlet pipe, the inlet tube with the outlet pipe sets up the both sides of mould body relatively.

2. The injection mold for preventing the generation of the weld line according to claim 1, wherein: the number of the molding cavities is n, n is an integer greater than or equal to 1, n sets of water channel pipelines in the mold body, and the water channel pipelines correspond to the molding cavities one to one.

3. The injection mold for preventing the generation of the weld line according to claim 2, wherein: every group waterway pipeline's connection layout is 180 rotatory settings rather than adjacent waterway pipeline, the outlet pipe sets up in same one side with adjacent waterway pipeline's inlet tube, the inlet tube sets up in same one side with adjacent waterway pipeline's outlet pipe.

4. The injection mold for preventing the generation of the weld line according to claim 1, wherein: the distance between the waterway pipeline and the forming cavity is 8-10 mm.

5. The injection mold for preventing the generation of the weld line according to claim 1, wherein: height differences exist among the connecting pipe, the first pipeline, the second pipeline, the third pipeline and the fourth pipeline.