CN105751442B - Two-color mold structure - Google Patents

Abstract

A kind of double-color mold structure, including：First penetrates master mold, and it includes the first caster, the first mother module core, limited block, Angle Pin and shovel base；Second penetrates master mold, and it includes the second caster, the second mother module core, Angle Pin and shovel base；Two male models, it includes male template, male die core, slider body, slide core and movable switch, and the slider body is provided with inclined hole and is located therein for the other end of the Angle Pin, and the slide core is provided with the groove being engaged with limited block；The movable switch is located in the slider body, and the flexible element of the movable switch and movable block, the movable block have boss.The double-color mold structure of the present invention, when being molded the feature die die sinking that one penetrates product, slide core need not exit motion, only slider body moves, i.e. slide core penetrates product without departing from one, when being molded two and penetrating the feature die matched moulds of product, wound is shoveled in the absence of slide core or the problem of product is penetrated in scratch molded good one.

Description

Two-color mold structure

【Technical field】

The invention relates to a mold structure, in particular to a two-color mold structure.

【Background technique】

Two-color mold refers to the mold in which two plastic materials are injected on the same injection molding machine and molded twice, but the product is only molded once. Generally, this molding process is also called double-material injection molding, which is usually completed by two sets of molds and requires a special two-color injection molding machine. Two-color molds are becoming more and more popular in the current market. This process can make the appearance of the product more beautiful, and it is easy to change the color without spraying.

When forming two-color products, because of the low melting point of soft rubber, usually one-shot molding hard rubber and two-shot molding soft rubber. When the hard rubber needs to use the slider structure, and when the soft rubber needs to be sealed with the slider structure, the slider structure includes the slider body and the slider insert. Therefore, the normal situation is that the slider body and the slider insert are one After the injection molding, the product is withdrawn, and the mold is closed again during the two-shot molding to return the slider body and the slider insert.

However, during the mold closing process of two-shot molding, the slider insert is easy to shovel or scratch the formed one-shot product, so that the two-shot product cannot continue to be molded.

In view of this, it is necessary to develop a two-color mold structure to solve the above problems.

【Content of invention】

Therefore, the object of the present invention is to provide a two-shot mold structure to solve the problem that the slider insert is easy to shovel or scratch the formed one-shot product during the two-shot mold clamping process.

In order to achieve the above object, the two-color mold structure of the present invention takes the mold opening direction as the vertical direction, including:

The first injection master mold, which includes a first master template, a first master mold core, a limit block, an inclined guide post and a shovel base, and one end of the limit block, an oblique guide post and a shovel base is respectively fixed on the first In a mother template, the inclined guide column forms an inclined angle with the vertical direction;

The second injection master mold includes a second master template, a second master mold core, an oblique guide column and a shovel base, one end of the oblique guide column and the shovel base are respectively fixed in the second master template, and the oblique guide column and the shovel base are respectively fixed in the second master template, and The guide post forms an inclined angle with the vertical direction;

Two male molds, which include a male template, a male mold core, a slider body, a slider insert and a movable switch, and the slider body is provided with a slanted hole for the other end of the slanted guide post to be arranged therein. One end of the slider insert is set in the slider body, and the other end is set in the male mold core, and the slider insert is provided with a through groove that matches the limit block. When the product is formed, the limit block passes through and extends out of the through groove; the movable switch is arranged in the slider body, the movable switch has an elastic element and a movable block, and the movable block has a boss, When the one-shot product is formed, the limiting block presses the boss.

Optionally, the movable switch further includes a screw, and the screw passes through the elastic element and the movable block.

Optionally, another elastic element is provided between the slider body and the slider insert.

Optionally, the elastic element is a spring.

Compared with the prior art, in the two-color mold structure of the present invention, the first female mold has more limit blocks than the second female mold. When the male and female molds are opened after forming a one-shot product, the first female mold The inclined guide column moves the slider body backward and drives the movable switch to move backward, but the slider insert cannot exit the first-shot product backward due to the blocking effect of the limit block. Therefore, after the molding is completed, the first-shot product When the male and female molds are opened, the slider insert does not need to do the withdrawal movement, only the slider body moves, that is, the slider insert does not leave the first-shot product, and when the male and female molds for the second-shot product are closed, there is no The problem of the slider inserting the shovel or scratching the formed one-shot product.

【Description of drawings】

FIG. 1 is a schematic view showing the structure of the two-color mold structure-injection mold clamping state of the present invention.

FIG. 2 is a partially enlarged schematic diagram of FIG. 1 .

Fig. 3 is a schematic structural view of the first mold opening state of the two-color mold structure one-shot mold male and female molds of the present invention.

Fig. 4 is a schematic structural diagram of the second mold opening state of the two-color mold structure one-shot mold male and female molds of the present invention.

FIG. 5 is a schematic diagram of the structure of the two-shot mold with a two-color mold structure of the present invention before mold closing.

FIG. 6 is a schematic view showing the structure of a two-shot mold with a two-color mold structure of the present invention in a clamped state.

FIG. 7 is a partially enlarged schematic diagram of FIG. 6 .

FIG. 8 is a schematic view showing the structure of the two-shot mold with the two-color mold structure of the present invention in the mold opening state.

【detailed description】

Please refer to Fig. 1, Fig. 2 and shown in Fig. 5, wherein Fig. 1 depicts the structure schematic diagram of the two-color mold structure of the present invention-injection mold clamping state, Fig. 2 depicts the partially enlarged schematic diagram of Fig. 1, and Fig. 5 depicts It shows the structure schematic diagram of the two-color mold structure two-shot mold of the present invention before mold closing.

In this embodiment, the two-color mold structure of the present invention takes the mold opening direction as the vertical direction, including:

The first shot master mold 100 includes a first master template 101, a first master mold core 102, a limiting block 103, an inclined guide post 104 and a shovel base 105, and the limit block 103, an inclined guide post 104 and a shovel base One end of 105 is respectively fixed in the first mother template 101, and the inclined guide post 104 forms an inclined angle with the vertical direction;

The second injection master mold 200 includes a second master template 201, a second master mold core 202, an oblique guide column 204 and a shovel base 205, and one end of the oblique guide column 204 and the shovel base 205 is respectively fixed on the second In the master template 201, the inclined guide column 204 forms an inclined angle with the vertical direction;

Two identical male molds 300 correspond to the first injection master mold 100 and the second injection master mold 200 respectively. After the first injection product 401 is formed, the two male molds 300 are rotated 180 degrees to replace the position, corresponding to the second injection mold. The male mold 300 of the first injection female mold 100 is changed to the second injection female mold 200. The male mold 300 includes a male template 301, a male mold core 302, a slider body 303, a slider insert 304 and a movable switch 305. The slider body 303 is provided with a slanted hole 3031 for the other end of the slanted guide post 104, 204 to be set therein, one end of the slider insert 304 is set in the slider body 303, and the other end is set in the slider body 303. In the male mold core 302, and the slider insert 304 is provided with a through groove 3041 (see FIG. 4 ) matching with the limit block 103. When the one-shot product is formed 401, the limit block 103 Pass through and protrude from the through slot 3041; the movable switch 305 is arranged in the slider body 303, the movable switch 305 has an elastic element 3051 and a movable block 3052, and the movable block 3052 has a boss 3053, When the one-shot product 401 is formed, the limiting block 103 presses against the boss 3053 .

Wherein, the movable switch 305 further includes a screw 3054 passing through the elastic element 3051 and the movable block 3052 .

Wherein, another elastic element 306 is provided between the slider body 303 and the slider insert 304. The elastic element 306 is used to assist the slider body 303 to retreat on the one hand, and to ensure that the slider body 303 moves backward on the other hand. The block insert 304 does not fall downwards.

Wherein, the elastic elements 3051, 306 are both springs.

Please refer to FIG. 3 , which depicts a structural schematic view of the first mold opening state of the two-color mold structure-injection mold male and female molds of the present invention. After the one-shot product is formed, the male mold 300 and the first female mold 100 are opened, and the limit block 103, the inclined guide column 104 and the shovel base 105 follow the first female mold 100 to move away from the male mold 300. The inclined guide post 104 of the one-shot master mold 100 moves the slider body 303 to the left (direction shown by the arrow) to retreat, and the limit block 103 blocks the slider inlet 304 so that the slider inlet 304 cannot retreat; when the mold is opened When the limit block 103 stretches out from the end of the slider insert 304 and just retracts to the slider insert 304, the movable block 3052 rises under the elastic force of the elastic element 3051, and the movable switch 305 moves along with the slide block. The main body 303 withdraws backward, and the boss 3053 of the movable block 3052 retreats to the bottom surface of the non-through groove 3041 of the slider inlet 304. The movable switch 305 is blocked by the slider inlet 304 and cannot continue to rise. Movement to the left.

Please refer to FIG. 4 , which shows a schematic structural view of the second mold opening state of the two-color mold structure of the present invention, the male and female molds of the injection mold. The male mold 300 and the first female injection mold 100 continue to open the mold, the slider body 303 and the movable switch 305 continue to retreat to the left together, and the slider insert 304 is stopped under the blocking effect of the limit block 103 until a The injection mold is fully opened, so the slider insert 304 does not withdraw to the left after the injection mold is fully opened.

Please refer to FIG. 5 , which shows a schematic structural view of the two-color mold structure and two-shot mold of the present invention before mold closing. After the molding of the first-shot product 401 is completed, the first-shot product 401 is not ejected from the male mold 300, the two male molds 300 are rotated 180 degrees respectively, and the male mold 300 where the first-shot product 401 is located is rotated to the second female mold 200 Below, the second shot master mold 200 does not have the limiting block 103 .

Please refer to FIG. 6 and FIG. 7 , wherein FIG. 6 shows a structural schematic diagram of a two-shot mold with a two-color mold structure according to the present invention, and FIG. 7 shows a partially enlarged schematic diagram of FIG. 6 . When the second female injection mold 200 is closed with the male mold 300, since the second female injection mold 200 does not have the limit block 103, the movable block 3052 rises under the action of the elastic element 3051, and the movable block 3052 The boss 3053 extends into the slot 3041 of the slider insert 304 . After the mold is closed, a two-shot product 402 is molded on the one-shot product 401 , and the product 400 includes a one-shot product 401 and a two-shot product 402 .

Please refer to FIG. 8 , which shows a schematic structural view of the two-shot mold with a two-color mold structure of the present invention in a mold-opening state. After the two-shot product 402 is formed, the male mold 300 and the second female mold 200 are opened, and the slider body 303 retreats to the left under the action of the inclined guide column 203 of the second female mold 200, while the movable block The boss 3053 of 3052 has protruded into the through groove 3041 of the slider insert 304, therefore, the movable switch 305 hooks the slider insert 304 and the slider body 303 to retreat to the left together, After the mold is fully opened, the product 400 can be ejected. At this time, the ejected product 400 includes a one-shot product 401 and a two-shot product 402 .

In the two-color mold structure of the present invention, the first master mold 100 has more limit blocks 103 than the second master mold 200. When the male and female molds are opened after forming the first-shot product 401, the oblique guide of the first master mold 100 The column 104 moves the slider body 303 to move backward and drives the movable switch 305 to move backward, but the slider insert 304 cannot withdraw from the first-shot product 401 backward due to the blocking effect of the limit block 103. When the male and female molds of the first-shot product 401 are opened, the slider insert 304 does not need to withdraw, only the slider body 303 moves, that is, the slider insert 304 does not leave the first-shot product 401, and the second-shot product 402 is formed. When the male and female molds are clamped, there is no problem that the slider insert 304 will shovel or scratch the formed one-shot product 401.

Claims (4)

1. A kind of 1. double-color mold structure, it is characterised in that direction is molded as vertical direction using mould, including：

   First penetrates master mold, it include the first caster, the first mother module core, limited block, Angle Pin and shovel base, the limited block, tiltedly One end of guide pillar and shovel base is individually fixed in first caster, and the Angle Pin and vertical direction are at an angle；

   Second penetrates master mold, it include the second caster, the second mother module core, Angle Pin and shovel base, the Angle Pin and shovel base one End is individually fixed in second caster, and the Angle Pin and vertical direction are at an angle；

   Two male models, it includes male template, male die core, slider body, slide core and movable switch, set on the slider body There is inclined hole to be located therein for the other end of the Angle Pin, one end of the slide core is located in the slider body, another End is located in the male die core, and the slide core is provided with the groove being engaged with limited block, when one penetrates formed product The limited block is through and out the groove；The movable switch is located in the slider body, and the movable switch has Flexible member and movable block, the movable block have boss, and the limited block press against the boss when one penetrates formed product.
2. 2. double-color mold structure according to claim 1, it is characterised in that the movable switch also includes screw, described Screw passes through the flexible member and movable block.
3. 3. double-color mold structure according to claim 1, it is characterised in that be provided between the slider body and slide core Another flexible member.
4. 4. the double-color mold structure according to Claims 2 or 3, it is characterised in that the flexible member is spring.