CN102059777B - Flexible deformation combined injection mold for serialized products - Google Patents

Abstract

The invention relates to a flexible deformation combined injection molding die for serialized products, and belongs to the technical field of dies in mechanical engineering. The die consists of an upper die part and a lower die part; the upper die part comprises an upper die holder (1), a middle plate (2), a female template (3), an interchangeable female die (15), an interchangeable female die insert (4), an oblique pressing edge (13), a positioning ring (16) and a sprue bush (17); and the lower die part comprises a lower die holder (10), a pad (9), a male template (8), an interchangeable male die (11), an interchangeable male die insert (5) and an oblique pressing edge (13). The die has simple structure and high production efficiency; and series products with different shapes, sizes and types are obtained by different combination and replacement of the interchangeable die cores and the quickly changed inserts and flexible deformation, so the production cost can be greatly saved, time for changing the die and debugging is saved, the production efficiency is improved, and the economic benefit is improved.

Description

Flexible deformation combined injection mold for serialized products

technical field

The invention relates to an injection mold, in particular to a flexible deformation combined injection mold for serialized products, which belongs to the technical field of molds in mechanical engineering.

Background technique

Injection mold is an important mechanical equipment for the production of plastic products. The quality of the product is closely related to the level of precision. With the rapid development of 3C (Computer, Communication, Consumer Electronic) products, the speed of product replacement is also accelerating.

Most of the injection molds in the existing technical field are designed and manufactured for a product with a fixed specification. The mold core and mold base are only suitable for the production of this product. Different types of products need to design different mold cores and even mold bases. Sex is not strong. For products produced in series, their specifications and shape characteristics do not change much. If a product has many models, and if a mold is designed and manufactured for each model, it is necessary to design and manufacture many sets of molds. This will not only The product cost is increased, and different molds need to be replaced frequently when producing plastic parts, which reduces the production efficiency, and at the same time causes the production cycle of the product to be relatively long, delaying the time for the product to occupy the market.

Therefore, it is very necessary to develop an injection mold for producing serialized products with simple structure and high production efficiency.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies in the above-mentioned prior art, and provide a flexible deformation combined mold that can meet the production of serialized products, which can realize the serialized production of products, that is, produce a series of products with many models , You can use the same secondary mold base to produce different types of plastic parts in the same series by replacing different interchangeable mold cores.

The present invention is composed of an upper mold part and a lower mold part, and the upper mold part includes an upper mold base, an intermediate plate, a female template, an interchangeable female mold, a quick-changeable female mold insert, a ramp, a positioning ring, The sprue sleeve, etc.; the lower mold part includes the lower mold base, the feet, the male template, the interchangeable male mold, the quick-change male mold insert, the ramp, etc.

According to the different models of the series, the present invention can replace one or more or all of different interchangeable female molds, quick-change female mold inserts, interchangeable male molds, and quick-change male mold inserts.

The interchangeable male mold, the interchangeable female mold, the quick-changeable female mold insert, the quick-changeable male mold insert and the universal mold base are detachably connected, and the interchangeable male mold insert and the quick-changeable The female mold inserts are respectively installed in the through grooves in the interchangeable male mold and the interchangeable female mold; The internal dimension of the through groove of the interchangeable male mold is consistent; the external dimensions of the interchangeable female mold and the interchangeable male mold are respectively consistent with the internal dimension of the mounting groove of the female template and the male template. The quick-change female mold insert and the quick-change male mold insert respectively adopt transition fit with the through groove of the interchangeable female mold and the interchangeable male mold; the interchangeable female mold and the interchangeable male mold are respectively It adopts clearance fit with the inner groove of the female formwork and the male formwork.

The interchangeable male mold and the interchangeable female mold of the present invention are respectively installed in the male formwork and the female formwork, and the two vertical sides of the interchangeable male mold and the interchangeable female mold are positioned and locked by two oblique pressure edges, and then Fasten them on the male formwork and the female formwork respectively with eight pressing plates.

The barcliner of the present invention is a wedge-shaped block with a slope on one side, which plays a locking role on the interchangeable male mold and the interchangeable female mold.

In order to facilitate dismantling in the present invention, a lifting threaded hole is provided in the middle of the upper surface of the oblique pressure edge to remove the oblique pressure edge; Two lifting threaded holes are used to remove the interchangeable female die and the interchangeable male die.

The present invention adopts the common mold frame of the same pair of injection molds, including positioning ring, sprue sleeve, upper mold base, middle plate, female formwork, lower mold base, feet, male formwork, outer guide column, outer guide sleeve, inner guide sleeve, Inner guide post.

The male formwork and the female formwork of the present invention are guided by the inner guide column and the inner guide sleeve when working, and the formwork is guided by the outer guide column and the outer guide sleeve when working.

The beneficial effects of the present invention are: 1) For a series of products with consistent peripheral dimensions, only the mold core (male mold or female mold) needs to be replaced without changing the mold base, which saves the number of mold bases and thus reduces the production cost of the product; 2) For products of the same series and different models, if only the local shape features are different, only the quick-change inserts need to be replaced to obtain serialized products. 3) Different combinations of interchangeable mold cores and quick-change inserts can be replaced to achieve flexible deformation, so as to obtain different models of products with different shapes and sizes. (4) For the production of serialized products of different types, the mold core (male mold or female mold) can be replaced directly on the mold base installed on the injection machine template without removing the general mold base, which saves mold change and debugging The time, improve the production efficiency of the mold, shorten the product development time, thereby improving economic benefits.

Description of drawings

Fig. 1 is the general assembly drawing of the present invention.

Figure 2 is a general formwork diagram of the present invention.

Fig. 3 is a top view of the lower mold of the present invention.

Fig. 4 is a front view of the interchangeable master mold of the present invention.

Fig. 5 is a top view of the interchangeable master mold of the present invention.

Fig. 6 is a front view of the interchangeable male mold of the present invention.

Fig. 7 is a top view of the interchangeable male mold of the present invention.

Fig. 8 is a plan view of the ramp of the present invention.

Fig. 9 is a front view of the ramp of the present invention.

Fig. 10 is a three-dimensional view of the quick-change master mold insert of the present invention.

Fig. 11 is a three-dimensional view of the quick-change male mold insert of the present invention.

In the figure: 1-upper mold base 2-middle plate 3-female template 4-quick-change female mold insert 5-quick-change male mold insert 6-pressure plate 7-screw 8-male template 9-foot 10-bottom Mold base 11-Interchangeable male mold 12-Screw 13-Blanking edge 14-Plastic parts 15-Interchangeable female mold 16-Location ring 17-Gate sleeve 18-Outer guide sleeve 19-Outer guide post 20- Inner guide sleeve 21- Inner guide column 22-Installation slot for quick exchange male mold 23-Through slot for interchangeable female mold 24-Hanging screw hole 25-Through slot for interchangeable male mold 26-Through hole for screw 27- Lifting screw holes.

Detailed ways

The specific structure and implementation of the present invention will be further described below through examples and with reference to the accompanying drawings.

As shown in Figure 1, the flexible deformation combined injection mold for serialized products of the present invention is composed of an upper mold part and a lower mold part, and the upper mold part includes an upper mold base 1, an intermediate plate 2, a female template 3, an interchangeable female mold Die 15, quick-change female mold insert 4, ramp 13, positioning ring 16, sprue sleeve 17, etc.; the lower mold part includes lower mold base 10, feet 9, male template 8, interchangeable male mold 11, The male die insert 5, the ramp 13, etc. can be changed quickly.

The installation process of the upper mold part: first install the upper mold base 1 of the universal mold base on the fixed template of the injection machine, and connect the middle plate 2, the female template 3 and the upper mold base 1 with fastening screws; The mold insert 4 is inserted into the through groove 23 of the interchangeable master mold, and then the quick-change master mold insert 4 and the interchangeable master mold 15 are inserted into the installation groove of the master template 3, and the 13 is positioned and locked along the two vertical sides of the interchangeable female mold 15, and fastened with screws 12; then the interchangeable female mold 15 is fastened in the female template 3 with eight pressing plates 6, because the female mold can be changed quickly The insert 4 has a boss, so the quick-change female mold insert 4 is firmly fixed in the interchangeable female mold 15 .

The installation process of the lower mold part: first install the lower mold base 10 of the universal mold base on the movable template of the injection machine, and connect the feet 9, the male template 8 and the lower mold base 10 with fastening screws; The insert 5 is inserted into the through groove 25 of the interchangeable male mold, and then the quick-change male mold insert 5 and the interchangeable male mold 11 are inserted into the installation groove 22 of the male template 8, and the 13 is positioned and locked along the two vertical sides of the interchangeable male mold 11, and fastened with screws 12; then the interchangeable male mold 11 is fastened on the male template 8 with eight pressing plates 6, because the male mold can be changed quickly The insert 5 has a boss, so the quick-change male die insert 5 is firmly fixed in the interchangeable male die 11 .

When producing another type of plastic part 14 of a series of products, under the condition that the universal mold base remains unchanged, replace the quick-change male mold insert 5 and the interchangeable male mold 11 of the same peripheral size according to the actual product situation 4. One or more or all of the interchangeable master molds 15 can be quickly replaced. The specific replacement process is: first unscrew the screw 7 to remove the pressure plate 6, unscrew the screw 12 and screw it in with the lifting screw The lifting screw hole 27 on the upper surface of the oblique pressure edge 13 is pulled down the oblique pressure edge 13, and then screwed into the lifting screw hole 24 on the opposite corner of the interchangeable female mold 15 and the interchangeable male mold 11 surface with the lifting screw to be able to Quick-change male mold insert 5, interchangeable male mold 11, quick-change female mold insert 4, interchangeable female mold 15, remove and replace another quick-change male mold insert 5, quick-change female One or more or all of the mold inserts 4, the interchangeable male mold 11, and the interchangeable female mold 15 can be installed according to the installation process described above, so that the same peripheral size can be produced, but the structural shape is different. The same serialized product can realize the flexible deformation of the serialized product.

As shown in Figure 2, the male formwork and the female formwork are guided by the inner guide post 21 and the inner guide sleeve 20 when working, and the formwork is guided by the outer guide post 19 and the outer guide sleeve 18 when working.

As shown in Figure 3, the interchangeable male mold and the interchangeable female mold are respectively installed in the male template and the female template, and two vertical The edges are positioned and locked, and then eight pressing plates are used to fasten them on the male formwork and the female formwork respectively.

As shown in Figures 4 to 7, the quick-change female mold insert 5 is installed in the through groove 23 in the interchangeable female mold 15, and the interchangeable male mold insert 5 is installed in the interchangeable male mold In the through groove 25 in 11; the external dimensions of the quick-change female mold insert 4 and the quick-change male mold insert 5 are respectively consistent with the internal dimensions of the interchangeable female mold 15 and the interchangeable male mold 11 through-slot ; The external dimensions of the interchangeable female mold 15 and the interchangeable male mold 11 are consistent with the internal dimensions of the mounting groove 22 of the female template 3 and the male template 8, respectively. The quick-change female mold insert 4 and the quick-change male mold insert 5 adopt transition fits with the through grooves of the interchangeable female mold 15 and the interchangeable male mold 11 respectively; The interchangeable male die 11 adopts clearance fit with the inner grooves of the female template 3 and the male template 8 respectively.

As shown in Fig. 5, Fig. 7 and Fig. 8, in order to facilitate dismantling, a lifting threaded hole 27 is provided in the middle of the upper surface of the ramp 13; the interchangeable female mold 15 and the interchangeable male mold 11 Offer two lifting threaded holes 24 at the corners of the upper surface.

As shown in FIG. 9 , the ramp 13 is a wedge-shaped block with a slope on one side, which acts as a lock for the interchangeable male die 11 and the interchangeable female die 15 .

As shown in Figures 10 and 11, the quick-change female mold insert 4 and the quick-change male mold insert 5 have bosses.

Claims (3)

1. A flexible deformation combined injection mold for serialized products, characterized in that it consists of an upper mold part and a lower mold part, and the upper mold part includes an upper mold base (1), an intermediate plate (2), a female Template (3), interchangeable master mold (15), quick-change master mold insert (4), ramp (13), positioning ring (16), sprue sleeve (17); said lower mold The part includes the lower mold base (10), the feet (9), the male template (8), the interchangeable male mold (11), the quick-change male mold insert (5), and the ramp (13); interchangeable One or more or all of the female mold (15), the quick-change female mold insert (4), the interchangeable male mold (11), and the quick-change male mold insert (5) can be replaced; The external dimensions of the quick-change female mold insert (4) and the quick-change male mold insert (5) are respectively consistent with the internal dimensions of the through grooves of the interchangeable female mold (15) and the interchangeable male mold (11); The external dimensions of the interchangeable female mold (15) and the interchangeable male mold (11) are respectively consistent with the internal dimensions of the mounting grooves of the female template (3) and the male template (8); the ramp (13) is A wedge-shaped block with a slope on one side, positioning and locking the interchangeable male mold (11) and the interchangeable female mold (15); the interchangeable male mold (11) and the interchangeable female mold (15) are installed separately In the male formwork (8) and the female formwork (3), use two oblique pressing edges (13) to position and lock along the two vertical sides of the interchangeable male formwork (11) and the interchangeable female formwork (15), and then Fasten them on the male formwork (8) and the female formwork (3) respectively with eight pressing plates (6); the quick-change female mold insert (4) and the quick-change male mold insert (5) With a boss; said interchangeable male mold (11), interchangeable female mold (15), quick-change female mold insert (4), quick-change male mold insert (5) and universal mold base With detachable connection, the interchangeable male mold insert (5) and the quick-change female mold insert (4) are respectively installed in the through grooves in the interchangeable male mold (11) and the interchangeable female mold (15) Inside; the male template (8) and the female template (3) are guided by the inner guide post (21) and the inner guide sleeve (20), and the universal formwork is guided by the outer guide post (19) and the outer guide sleeve (18). 2. The flexible deformation combined injection mold for serialized products according to claim 1, characterized in that, the quick-change female mold insert (4) and the quick-change male mold insert (5) are respectively connected to the The through grooves of the interchangeable female mold (15) and the interchangeable male mold (11) adopt a transition fit; It adopts a clearance fit with the inner groove of the male template (8). 3. The flexible deformation combined injection mold for serialized products according to claim 1 or 2, characterized in that a lifting threaded hole (27) is set in the middle of the upper surface of the oblique pressure edge (13); Change the upper surface diagonal place of female die (15) and interchangeable male die (11) and offer two lifting threaded holes (24).

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