CN201140501Y - Module structure of injection molding die - Google Patents

Abstract

The utility model provides an injection molding mould module structure, fix preceding, back mould benevolence respectively in mould benevolence frame, mould benevolence frame is positioned in the die cavity of this mould A, B board through the locating piece, simultaneously carrier plate, thimble panel are equipped with the mold insert that matches with mould benevolence group, when switching production different structure's product, only need to change mould benevolence and corresponding mold insert, thimble, one set of mould base can form the module with the mould benevolence combination of multiple different products and produce, thereby become shared equipment, change the traditional mould base of one set can only assemble the mould benevolence of a shaping structure; and the rapid die is additionally provided with a precise guide positioning piece, so that the operation precision can be improved, the quality can be ensured, the die opening time of the product can be shortened, and the cost can be saved.

Description

Injection molding mold module structure

Technical field

The utility model relates to an injection molding mold module structure, in particular to an injection molding mold module structure which can share mold cores of different structures with the same mold base, can be precisely positioned, and has an optimized design structure.

Background technique

In today's connector production industry, due to the rapid development of science and technology, the design structure of products is also changing with each passing day. In response to the needs of customization, the product structure change cycle is getting shorter and shorter. However, when developing new products, the plastic parts involved in the production of molds; it often takes a long time to develop a new set of plastic molds. This is a main reason for prolonging the product development cycle in the new product development process; moreover, the possibility of structural design changes is not ruled out in the new product development stage and before qualified mass production, and the mold corresponding to the mold for producing plastic parts Both the core and the mold base are designed and produced according to the structure of the product. It is difficult to change the structure when the structure is changed. If the structure of the change is large, it may cause the entire mold to be scrapped because it cannot be modified. Moreover, conventional molds correspond to a set of molds for each product, and the use of mold bases is also limited to one product, which increases the workload of processing, and the backlog of assets cannot be effectively utilized. Repeated processing of mold bases will cause A great waste of time and cost.

At the same time, precision molds will be deformed and worn after working in a long-term high-temperature and high-pressure environment, and the precision is difficult to meet the requirements, so that the mold core is easily damaged when the mold is closed, resulting in abnormal burrs when the plastic product is formed.

Therefore, in view of the aforementioned defects, it is necessary to improve the design of the current technology to provide an optimized structural plastic mold that can not only improve the working accuracy, ensure the quality, but also reduce the cost of the mold and shorten the production cycle.

Contents of the invention

The main purpose of this utility model is to provide a modular structure of an injection molding mold. When switching production, only the mold core and the corresponding thimble and inserts need to be replaced, and a set of mold bases can be combined with mold cores of various products to become 1. Share equipment to save cost.

Another object of the present invention is to provide a modular structure of an injection molding mold. The rapid mold is equipped with long-distance precision guiding and positioning parts, which can be guided and positioned from two vertical directions respectively, so as to improve the working accuracy and ensure the quality.

In order to achieve the aforementioned purpose, the utility model can be implemented through the following technical proposals: the injection molding mold module structure of the utility model is composed of a front mold and a rear mold; the A plate located in the front mold and the B plate located in the rear mold Each is provided with a square through-hole space opposite to each other, and a positioning plate is respectively sunk on the opposite back to form a hollow mold cavity; the mold core is positioned in the through cavity of the mold core frame through the matching of the concave part and the convex part. The core frame of the mold is composed of modules and slanting blocks. The slanting blocks can make the combined mold frame tighter, reduce the gap, and improve the matching accuracy. The outer periphery forms a regular size, making it more interchangeable and adjustable After the module and the inclined block are combined, they are respectively held by screws in front of the positioning plates sunk on the A and B plates. The mold core and the mold frame are accurately positioned in the mold cavity. There is also a square hole on the rear positioning plate for Different types of thimble threading. At the same time, there is an embedded hole on the carrier plate and a square counterbore on the thimble panel, which can be used to accommodate different inserts that can be assembled with different mold cores. Different inserts can be matched with different thimbles to guide and position the thimble. .

In this way, when changing the product to be produced, there is no need to replace the entire set of molds, only the inner mold core, inserts, and matching thimbles can be replaced to form a set of injection molds that can produce another structural product. mold.

In order to ensure the stable performance of the mold during production, long-distance precision guides are added on the surface of the A plate. These guides are made of wear-resistant metal materials, and each guide positioning part is also equipped with The corresponding gasket; the corresponding B plate is provided with the corresponding guide hole, and the corresponding guide groove and guide piece are also fixed in it; during the mold closing process, the guide and the guide groove and guide piece The contact is easy to wear and deform, and it can be replaced in time at this time to ensure the accuracy, and the position distribution of the guide can also be set according to the structure of the product, and the setting scheme is also different, not only can be set on the edge and edge of the A and B boards The inner side can also be set on the mold core frame, which can be reasonably selected according to the product structure.

Compared with the previous technology, the utility model has the following advantages: using the fast data conversion structure, the development and processing cycle of new product molds is shortened, and it is not necessary to make mold bases for each set of molds, which saves mold manufacturing costs. Quick mold change can be realized on the surface; two long-distance precision guides for guiding and positioning in different directions are added on the mold clamping surface, thereby improving the accuracy of mold clamping and reducing the probability of mold core wear. It also ensures the quality of work.

In order to make the purpose and structural features of the utility model more clear to those familiar with this technology, the utility model will be further described with a specific embodiment in conjunction with the accompanying drawings.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 three-dimensional exploded view of the injection molding mold module of the utility model;

Fig. 2 is an exploded view of the injection molding mold module of the utility model;

Fig. 3 is an exploded view of the mold core and the mold core frame of the injection molding mold module of the utility model;

Fig. 4a is an exploded view of the injection molding mold module of the utility model;

Fig. 4b is another perspective exploded view of the injection molding mold module of the present invention;

Fig. 5a is a three-dimensional view of the structure of the mold core frame of the injection molding mold module of the present invention;

Fig. 5b is an exploded perspective view of the mold core frame of the injection molding mold module of the present invention;

Fig. 6a is a three-dimensional view of the combination of the mold core and the mold core frame of the injection molding mold module of the present invention;

Fig. 6b is a sectional view of combination A--A of the mold core and the mold core frame of the injection molding mold module of the present utility model;

Fig. 6c is another perspective view of the combination of the mold core and the mold core frame of the injection molding mold module of the present invention;

Figure 7 is an exploded view of the guide parts after the front and rear molds of the injection molding mold of the utility model are parted; and

Fig. 8a is a three-dimensional view of the distribution of guides in another embodiment of the injection molding mold module of the present invention;

Fig. 8b is a perspective view of the distribution of guides in another embodiment of the injection molding mold module of the present invention.

In the figure, 10-mould, 101-front mold, 102-back mold, 11-B plate, 3-bearing plate, 4-square iron, 5-bottom plate, 8-panel, 6-thimble bottom plate, 7-thimble panel, 113 -Rear positioning block, 213-front positioning block, 31-embedded hole, 111-rear mold cavity, 21-A plate, 211-front mold cavity, 1131-square through hole, 22-front mold core frame, 221-front mold Cavity, 23-front mold core, 12-rear mold core frame, 12a, 12b-slope block, 121-cavity, 13-rear mold core, 14-supporting plate insert, 15-panel insert, 16-thimble, 71-square counterbore, 113a, 113b-accommodating part, 212a, 212b-gasket, 112a-guiding groove, 112b-guiding piece, 212-precision guide, 213a, 213b-positioning part, 12a, 12b - inclined blocks, 122, 131 - protrusions, 12b, 12c, 12d, 12e, 12f - modules.

Detailed ways

Please refer to Fig. 1, which is a specific embodiment of the modular structure of the injection molding mold of the present invention. The mold 10 is composed of a front mold 101 and a rear mold 102; The B plate 11 of 102 is provided with a corresponding square through-hole space, as shown in Figures 2, 3, 4a, 4b, there is a square iron 4 and a thimble base plate 6 on the bottom plate 5 of the rear mold 102, which is the same as the general mold structure. A countersunk hole 71 is provided on the thimble panel 7, and the thimble panel insert 15 for matching and positioning of the thimble panel 16 is embedded in a sinking plate type, and the bottom can be locked and fixed by screws; The corresponding embedding hole 31 is used for passing through and matching with the same thimble 16 and for inserting the carrier plate insert 14 . Square through-hole spaces are provided on the A and B boards 21 and 11, and these square through-holes can be used for the front and rear positioning blocks 213 and 113 to be embedded, because the thickness of the positioning blocks 213 and 113 is smaller than that of the A and B boards 21 , 11 thickness, so on A, B board 21, 11 just can form a hollow front and rear mold cavity 211,111, and this front and rear mold cavity 211,111 is for front and rear mold core frame 22,12 and its The matching is placed inside; and the front and rear mold cores 23, 13 are respectively positioned in the mold cavities 221, 121 of the front and rear mold core frames 22, 12.

A square through hole 1131 is also provided at the position where the rear positioning block 113 is aligned with the rear mold core 13 , which is used for accommodating the penetration of the carrier plate inserts 14 of different heights so as to cooperate with the rear mold core 13 . The centers of the mold cavity 121 , mold cavity 111 , square through hole 1131 , embedded hole 31 , and square counterbore 71 are all on the same center line and perpendicular to the bottom plate 5 .

As shown in Figures 5a, 5b, 6a, 6b, and 6c, the mold core frame 12 is composed of inclined blocks 12a, 12b and modules 12c, 12d, 12e, and 12f, and the inclined blocks 12a, 12b are vertically arranged Forming a benchmark can make the combined mold frame 12 tighter, reduce gaps, improve matching accuracy, and use the characteristics of fixed specifications with regular dimensions on the periphery to make the mold frame 12 more interchangeable. On the side edge of the mold core 13, there is a convex part 131 that is locked in the mold cavity 121 with the corresponding concave part 122 of the contacting module, and the rear mold core frame 12 is locked to the rear positioning block 113 sunk on the A plate by screws Before, the rear mold core frame 12 can be accurately positioned in the rear mold cavity 111. The front mold core frame 22 of the front mold core 23 is also positioned in the mold cavity 211 of the A plate 21 in the same way.

If the mold needs to switch production, it only needs to reassemble the inserts 14, 15, mold cores 13, 23, and ejector pins 16 of different sizes, and adjust the mold core frames 12, 22 to form another type of mold. Production of mold structures.

At the same time, in order to ensure the stable performance of the mold 10 in production, as shown in Figure 7, on the joint surface of the A plate 21 and the B plate 11, the A plate 21 is additionally equipped with a long-distance precision guide 212, which is wear-resistant made of metal material. Corresponding gaskets 212a, 212b are also provided in the positioning portions 213a, 213b of each guide member 212; the corresponding guide holes 112 are provided on the B board 11 and are held by the preset guide groove members 112a and guide piece members 112b. The accommodating parts 113a, 113b are formed; during the use of the mold, the guide part 212, the guide groove part 112a, and the guide piece part 112b must be worn and deformed. At this time, the aforementioned parts can be replaced in time to ensure the accuracy. And the location distribution of the guide piece 212 can also be set according to the structure of the product, and the scheme of setting can also be different. As shown in Figure 8, the guide piece 212 can not only be arranged on the edge of the A, B board, the inner side of the edge, It can also be set on the core frame of the mold, and an appropriate choice can be made according to the product structure.

The embodiments and accompanying drawings of the utility model are only used to illustrate the utility model, so that those familiar with the technology can truthfully understand the purpose and effect of the utility model, but do not impose any limitations on the utility model. The utility model can also have other variant implementation modes, so anyone who is familiar with the technology and implements it in other styles without departing from the spirit of the utility model in this case should be regarded as an equivalent implementation of the claims in this case.

Claims (7)

1. A kind of injection molding mold module structure, it comprises front mold and back mold two parts, it is characterized in that: be positioned at the A plate of front mold and be positioned at the B plate of back mold all be provided with a opposite square through-hole space, and There is a countersunk hole on the thimble panel of the rear mold, which can be used for the thimble to pass through. The matched and positioned thimble panel insert is embedded in a sinking plate, and the bottom can be locked and fixed by screws; at the same time, the bearing plate located on the front mold is also provided with a sinking hole. The embedding hole corresponding to the hole is used for matching with the same thimble and for the embedding of the bearing plate insert; there are square through-hole spaces on the A and B plates, and these square through-holes can be used for the embedding of the front and rear positioning blocks. , A hollow front and rear mold cavity can be formed on the A and B plates. The front and rear mold cavities are for the front and rear mold core frames to match with them; and the front and rear mold cores are held by the mold core frame. In the positioning block, the matching is positioned in the mold cavity. 2. The injection molding mold module structure according to claim 1, characterized in that: the bearing plate and the thimble panel are respectively provided with inserts for the thimble to pass through and match. 3 . The injection molding mold module structure according to claim 1 , wherein the rear positioning block is sunk on the B plate and has a square through hole through which the thimble can penetrate. 4 . 4. Injection molding mold module structure as claimed in claim 1, is characterized in that: the central position of described mold cavity, mold cavity, square through hole, embedded hole, square counterbore is all on the same central line and perpendicular to bottom plate. 5 . The injection molding mold module structure according to claim 1 , wherein a convex portion is provided on the side edge of the mold core to engage with a corresponding concave portion of the contacting module in the mold cavity. 6 . 6. The injection molding mold module structure according to claim 1, characterized in that: plate A is additionally provided with a long-distance precision guide, and each guide positioning part is also provided with a corresponding gasket; The corresponding guide holes are formed by the preset guide slots and guide pieces held in the accommodating part. 7 . The injection molding mold module structure according to claim 6 , wherein the position of the guide member can be set not only on the edge or inside of the edge of the mold clamping surface, but also on the mold core frame. 8 .

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