CN201136271Y - Replaceable three-plate injection mold - Google Patents

Abstract

The utility model relates to a but three board injection mold of substitution, including utilizing screw or bolt with public mould benevolence and carrier plate assemblage or change in public model book, with the cavity die benevolence with can replace and water mould benevolence assemblage or change in female model book, wherein should replace and water mould benevolence and be equipped with the injection point that can the deviation in order to change hot melt form plastics entering mould in inside, and cooperate the left side of this carrier plate opposite face, the right edge supports and leans on between two interval backing blocks in the die holder one side in order to bear injection pressure, reach and to supply the user to change publicly, cavity die benevolence can be in the future according to different finished product sizes, perhaps according to spouting the condition requirement and change and to water mould benevolence, borrow this and save the acquisition expense, need not to waste time in the refabrication, lower liftout board and die holder, the model book, and save purposes such as mould storage required space.

Description

Replaceable three-plate injection mold

technical field

The utility model relates to a replaceable three-plate injection mold, in particular to an injection mold which only needs to purchase and replace male and female mold cores and replaceable runner mold cores.

Background technique

The injection mold of the prior art is mainly composed of six major parts including a male template, a male mold core, a mold base, a female template, a female mold core and a fixed side assembly plate, wherein the male template is a direct integral metal wire cutting and NC In the above manufacturing process, the central part is hollowed out and formed into a male mold core, and the female template and the female mold core are also formed by the same production method, and the male template and the mold base are also fixed. Together to form a male module block, similarly, the female formwork and the fixed side assembly plate are also fixed to form a female module block; The sprue is at the same height as the sprue of the male mold core;

According to the above design, the user can arrange the male module block and the female module block relative to each other on the relevant equipment, so that the male mold core and the female mold core are opposite to each other, so that the hot-melt plastic can be placed on the male mold core, female mold core, etc. The space formed by the mold core is used for cooling and forming. The runner is NC directly drilled on the side assembly plate. The above-mentioned runner is a continuous injection runner and has the function of replacing and changing the position deviation, so that the hot-melt plastic The injection point into the mold is fixed and cannot be adjusted.

Utility model content

In this utility model, based on the feedback information on the market and further analysis, it is found that the above-mentioned male module and female module are arranged relative to each other, although injection molded products can be quickly obtained, but if the user wants to produce another style of finished product, It is necessary to make a brand new male module block and female module block from the mold maker, so that when the user wants to produce too many types of finished products, the user's purchase cost will inevitably remain high, and the previously purchased , the lower ejector board and the template of the mold base, etc. will occupy the space of the factory building. And the above-mentioned sprue is directly drilled on the fixed side assembly plate by NC, so the sprue does not have the function of replacing and changing the position deviation, so that the injection point of the hot-melt plastic into the mold cannot be adjusted.

Therefore, use above-mentioned injection mold commonly used, still have deficiency and need to be improved.

In view of the shortcomings of the above-mentioned injection mold, the inventor of the utility model finally developed a replaceable three-plate injection mold through careful improvement research and persistent creative spirit, so as to make the structure of the injection mold more perfect.

Therefore, the purpose of this utility model is: to provide a direct purchase of the male mold core and carrier plate, the female mold core and the replaceable sprue mold core, and directly replace and lock the male mold plate and the female mold plate accordingly, so as to be available for use. The operator does not need to spend time re-ordering the upper and lower ejector plates, mold bases, and templates, and can save purchase expenses and save storage space; at the same time, another replaceable sprue mold core that can be independently embedded in the mother template The replaceable sprue core is a continuous injection runner and has the function of changing the position deviation. By selecting different replaceable sprue cores, it is possible to adjust the injection point of the hot-melt plastic into the mold.

In order to achieve the above-mentioned purpose, the utility model provides a replaceable three-plate injection mold, comprising: the mother template has a receiving part in the center, and a replaceable sprue mold core and a female mold core are respectively embedded on both sides of the receiving part; The public template has a housing part in the center, and a male mold core and a supporting plate are respectively embedded on both sides of the housing part. There are two symmetrical and parallel spacers on one side, the upper and lower support columns are formed in the center of the two spacers, and the upper and lower ejector plates are placed between the upper and lower support columns, so that the left side of the opposite surface of the bearing plate , the right edge leans against each of the spacers; and a replaceable sprue formwork arranged between the fixed side assembly plate and the mother formwork;

In this way, when implementing, the user uses screws or pins to assemble or replace the male mold core and the carrier plate with the male template, and assemble or replace the female mold core with the replaceable sprue mold core with the female template, and cooperate with the The left and right edges of the opposite side of the bearing plate are against the two spacers on the side of the mold base to withstand the injection pressure, and the replaceable runner is provided inside the mold core with a continuous runner that can change the position deviation to change the thermal melting state. The injection point where the plastic enters the mold.

The utility model has the following beneficial effects:

1. The injection mold of the present invention can be assembled immediately by purchasing different types of male and female mold cores and replaceable sprue mold cores without replacing the existing injection molds and related equipment;

2. The injection mold of the present invention can save the space required for storing redundant molds;

3. The injection mold of the present invention can save the user the expense of re-opening the mold for design and manufacture;

4. The injection mold of the present utility model can continuously inject materials and change the position deviation to adjust the advantages of hot-melt plastic entering the injection point of the mold;

5. The injection mold of the present invention has the advantage of enhanced efficacy.

Description of drawings

Fig. 1 is the combined three-dimensional schematic diagram of the utility model;

Fig. 2 is a three-dimensional exploded schematic diagram according to Fig. 1;

Fig. 3 is a schematic diagram of the left and right edges of the opposite surface of the bearing plate of the utility model leaning against each of the spacer blocks;

Figure 4 is a longitudinal sectional view according to Figure 1; and

FIG. 5 is a partially enlarged schematic diagram according to FIG. 4 .

[Description of main component symbols]

1 Public template 11 Accommodating part

12 through holes 13 water holes

14 jacks 2 male cores

21 screw holes 22 jacks

3 module seat 31 spacer block

311 through hole 32 upper support column

33 support columns 4 female templates

41 Accepting part 42 Through hole

43 water hole 44 temperature sensing rod insertion hole

45 screw holes 46 jacks

5 master mold kernels 51 screw holes

52 sockets 6 fixed side assembly boards

61 rail support columns 7 replaceable sprue cores

71 screw hole 72 sprue

73 sockets 8 bearing plates

81 upper ejection board 82 lower ejection board

83 screw holes 84 jacks

9 screws 10 sprue stripper

101 through hole A junction area

B pin

Detailed ways

Further describe the utility model below in conjunction with accompanying drawing, described utility model is to further describe the utility model, rather than limit the utility model.

As shown in Figure 1, it is a combined perspective schematic diagram of the utility model, which is mainly composed of a fixed side assembly plate 6, a female template 4, a male template 1 and a mold base 3, especially at the fixed side assembly plate 6 and the female template. Between the templates 4, a sprue stripping plate 10 is arranged in a row, wherein the mold base 3 is provided with two symmetrical and parallel spacers 31 on one side, and the spacers 31 can respectively abut on the male model 1 .

As shown in Figure 2, it is a three-dimensional exploded schematic diagram according to Figure 1, wherein the utility model is provided with a male template 1, and the male template 1 is directly hollowed out in its center with a housing portion 11 during the wire cutting and NC forming process The two sides of the accommodating part 11 are respectively embedded with a male mold core 2 and a supporting plate 8, and the opposing surfaces of the supporting plate 8 are pivotally connected to the adjacently arranged upper and lower ejection plates 81, 82; and the edge of the male template 1 There are through holes 12 through which a plurality of rail support columns 61 can pass, and water holes 13 are provided on the side, or/and sockets 14 for inserting pins B are provided on the side to increase the fixing effect.

The male die core 2 is assembled with the bearing plate 8 by a plurality of screws 9 so as to be completely retracted into the accommodating portion 11. The screw hole 83 forms a lock, or/and the insertion hole 22 that can be inserted into the plug B is provided on the side to increase the fixing effect.

In addition, the mold base 3 is provided with two symmetrical and parallel spacers 31 on one side thereof, and the upper and lower support columns 32, 33 are formed in the center of the two spacers 31, and the upper and lower ejector plates 81, 82 are placed Between the upper and lower support columns 32, 33, the left and right edges of the opposite faces of the bearing plate 8 are abutted against a part of each spacer block 31; The through hole 311 for the plurality of rail support columns 61 passes through.

In addition, on the edge of the mother template 4, there are through holes 42 through which a plurality of rail support columns 61 can pass through, and a water hole 43 and a temperature sensing rod insertion hole 44 are provided on the side, or/and are provided on the side for placing The insertion hole 46 of the insert pin B further increases the fixing effect, and there is a receiving part 41 in the center, and a replaceable sprue mold core 7 and a female mold core 5 are respectively embedded on both sides of the receiving part 41.

In addition, the female mold core 5 is assembled with a plurality of screws 9 and the replaceable runner mold core 7 and completely retracted into the receiving part 41. The screw hole 71 of the replaceable sprue mold core 7 is locked, or/and the socket 52 that can be inserted into the pin B is provided on the side to increase the fixing effect.

In addition, the replaceable sprue mold core 7 is assembled in the screw hole 45 provided in the receiving part 41 with a plurality of screws 9, and is completely retracted into the receiving part 41 to form a flush state, or/and set on the side There is a socket 73 that can be inserted into the pin B to form a better fixing effect, and a sprue stripping plate 10 is arranged between the replaceable sprue mold core 7 (including the mother template 4 ) and the fixed side assembly plate 6 .

In addition, the bearing plate 8 is assembled by a plurality of screws 9 and fully retracted into the accommodating portion 11 of the male template 1 to form a flush state, or/and there is an insertion hole for inserting the plug B on the side 84.

The sprue release plate 10 is provided with a through hole 101 on the edge for a plurality of rail support columns 61 to pass through, so as to facilitate the demoulding of the product after molding.

As shown in Figure 4, it is based on the longitudinal sectional view of Figure 1. The pressure on the transfer area A is preferably in the range of 20kg/cm ² to 200kg/cm ² according to the hardness of the materials used for both the male template 1 and the female template 4. , in order to achieve the effect of bearing the injection pressure; the replaceable sprue mold core 7 is provided with a sprue 72 with a height difference inside to change the injection point of the hot-melt plastic into the mold, and cooperate with a sprue stripping plate 10 It is convenient for demoulding after the product is formed.

As shown in Figure 3, it is a schematic diagram of the left and right edges of the opposite surface of the bearing plate of the utility model against each of the spacer blocks, and as shown in Figure 5, it is a partially enlarged schematic diagram based on Figure 4, from which two figures can be seen The width formed between the spacer blocks 31 is smaller than the left and right width of the support plate 8 , so that the opposite surface of the support plate 8 and the spacer block 31 form a junction area A capable of withstanding injection pressure when they abut against each other.

In summary, compared with the existing injection molds, the utility model only needs to purchase different types of male and female mold cores and replaceable sprue molds without changing the existing injection molds and related equipment. The core can be assembled immediately, and at the same time, it has the advantages of saving the space required for storing redundant molds and the expenditure of re-opening design and production, and can continuously inject materials and change the position deviation to adjust the injection point of hot-melt plastic into the mold, and Benefits of enhanced efficacy.

Claims (10)

1. A replaceable three-plate injection mold, including: a male template, with a male mold core formed on one side, and a mold base fixed on the other side; a female template, with a female mold core formed on one side; and a fixed side assembly plate , one side is provided with a plurality of track support columns that can pass through the arranged female formwork, male formwork and mold base; it is characterized in that: The said female template has a receiving part in the center, and a replaceable sprue mold core and a female mold core are respectively embedded on both sides of the receiving part; The above-mentioned male formwork is provided with an accommodating part in the center, and a male mold core and a supporting plate are respectively embedded on both sides of the accommodating part, and the opposite surfaces of the supporting plate are pivotally connected to the adjacently arranged upper and lower ejection plates; The mold base is provided with two symmetrical and parallel spacers on one side, the upper and lower support columns are formed in the center of the two spacers, and the upper and lower ejector plates are arranged between the upper and lower support columns, so that the the left and right edges of the opposite sides of the carrier plate abut against each of the spacers; and A sprue stripper is arranged between the fixed side assembly plate and the mother template. 2. The replaceable three-plate injection mold according to claim 1, wherein, the support plate is assembled with a plurality of screws and fully retracted into the accommodating part of the male template, or/and there is a Receptacle for inserting pins. 3. The replaceable three-plate injection mold according to claim 1, wherein, the male mold core is assembled in the accommodating part of the male template by a plurality of screws, or/and there is an insertable insert on the side pin jack. 4. The replaceable three-plate injection mold according to claim 1, wherein the replaceable sprue core is provided with a sprue with a height difference inside, and is assembled with a plurality of screws and fully retracted into the sprue. The receiving part of the female model, or/and on the side, is provided with a socket that can be inserted into the pin. 5. The replaceable three-plate injection mold according to claim 1, wherein, the core of the female template is completely retracted into the receiving part of the female template and assembled with a plurality of screws to keep the two in a flush state, or/and On the side there is a socket for inserting pins. 6. The replaceable three-plate injection mold according to claim 1, wherein the width formed between the spacers is smaller than the left and right width of the carrier plate, so that the opposite surface of the carrier plate and the spacer block are mutually When abutting against each other, a junction area that can withstand the injection pressure is formed, and there are through holes at the upper and lower parts for multiple rail support columns to pass through. 7 . The replaceable three-plate injection mold according to claim 6 , wherein the pressure on the transition area is in the range of 20kg/cm ² -200kg/cm ² depending on the material hardness of the male template and the female template. 8 . The replaceable three-plate injection mold according to claim 1 , wherein the sprue stripping plate is provided with through holes on the edge for a plurality of rail support columns to pass through. 9. The replaceable three-plate injection mold according to claim 1, wherein the said mother template is provided with a through hole on the edge for a plurality of rail support columns to pass through, and a water hole and a temperature sensing rod are provided on the side. Access holes or/and sockets into which pins can be inserted. 10. The replaceable three-plate injection mold according to claim 1, wherein, said male template is provided with a through hole on the edge for a plurality of rail support columns to pass through, and a water hole or/and can be placed on the side into the socket of the pin.

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