CN110884037A

CN110884037A - Continuous transition different-color shell injection mold

Info

Publication number: CN110884037A
Application number: CN201911207366.5A
Authority: CN
Inventors: 陆洪彬; 何平周; 陆洪祥
Original assignee: Jinyutai Huizhou Industrial Co Ltd
Current assignee: Jinyutai Huizhou Industrial Co Ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-03-17

Abstract

A continuous transition injection mold for a heterochromatic shell comprises a lower mold component, a first upper mold and a second upper mold, wherein the lower mold component comprises an injection lower mold, a position avoiding block and a warping plate, the warping plate is arranged on the injection lower mold, the position avoiding block is arranged on the warping plate, a forming groove is formed in the injection lower mold, a first injection groove is formed in the first upper mold, a second injection groove is formed in the second upper mold, when the injection lower mold is buckled on the first upper mold, the first injection groove and the forming groove jointly enclose a forming cavity, meanwhile, the warping plate is pushed and pressed by the first upper mold to enable the position avoiding block to be inserted into the forming cavity so as to reserve a plastic runner, when the injection lower mold is buckled on the second upper mold, the second injection groove is communicated with the forming cavity, injected plastic covers a water gap of the heterochromatic component so as to enable the outer surface of the heterochromatic component to keep smooth, meanwhile, the warping plate is pushed and pressed by the second upper mold so as to enable the position avoiding block, the heterochromatic shell is formed, so that the heterochromatic component is effectively prevented from falling off, and the service life of the heterochromatic shell is prolonged.

Description

Continuous transition different-color shell injection mold

Technical Field

The invention relates to the technical field of injection molds, in particular to a continuous transition injection mold with a heterochromatic shell.

Background

An injection mold is a tool used for injection molding, generally has injection and molding functions, and is suitable for mass production of parts with complex shapes, and is one of important processing tools.

Referring to fig. 1, a housing 10 with different colors is shown, where the housing 10 with different colors includes a body 11, a different color part 12, a first insert 13, a second insert 14, and a third insert 15, where the body 11 has an accommodating groove, the different color part 12 is accommodated in the accommodating groove, the different color part 12 has a first mounting groove, a second mounting groove, and a third mounting groove, the first insert 13, the second insert 14, and the third insert 15 are respectively accommodated in the first mounting groove, the second mounting groove, and the third mounting groove in a one-to-one correspondence manner, it should be noted that the body 11, the first insert 13, the second insert 14, and the third insert 15 are made of the same plastic material, the different color part 12 is made of another plastic material, and a conventional injection molding method includes simultaneously injection molding the body 11, the first insert 13, the second insert 14, and the third insert 15, and finally injection molding the different color part 12.

However, in the conventional injection molding method, the glue inlet channel is fixed, so that a glue inlet is left on the outer surface of the different-color part 12 during the injection molding process, which affects the smoothness of the outer surface of the different-color casing 10, and further causes the molding quality of the different-color casing 10 to be reduced; further, in the conventional injection molding method, since the different-color member 12 is injection-molded on the surface of the body 11, it is easily peeled off from the surface of the body 11, thereby causing a reduction in the service life of the different-color housing 10.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a continuous transition injection mold for a different-color shell, which can firstly perform injection molding on a different-color part by utilizing a variable glue inlet flow passage and then perform injection molding on a body, a first insert, a second insert and a third insert, so that a glue inlet cannot be positioned on the outer surface of the different-color shell, the smoothness of the outer surface of the different-color shell is improved, the molding quality of the different-color shell is improved, the different-color part can be prevented from being peeled off, and the service life of the different-color shell is effectively prolonged.

The purpose of the invention is realized by the following technical scheme:

a continuous transition injection mold for a heterochromatic shell, comprising:

the lower die assembly comprises an injection lower die, a position avoiding block and a warping plate, wherein the warping plate is arranged on the injection lower die, a forming groove and a position avoiding through hole are formed in the injection lower die, the position avoiding through hole is communicated with the forming groove, one end of the position avoiding block is arranged on the warping plate, and the other end of the position avoiding block penetrates through the position avoiding through hole;

the first upper die is provided with a first injection molding groove and a glue inlet through hole, the glue inlet through hole is communicated with the first injection molding groove, when the first upper die is buckled with the lower injection molding die, the inner side wall of the first injection molding groove and the inner side wall of the forming groove jointly enclose a forming cavity, and the first upper die pushes and presses the warping plate to enable the avoiding block to be accommodated in the forming cavity;

the second is gone up the mould, go up the mould and seted up the second on the second and moulded plastics the groove, flow gluey groove and advance gluey passageway, advance gluey passageway with flow gluey groove intercommunication, flow gluey groove with the second groove intercommunication of moulding plastics, the second go up the mould with when moulding plastics the lower mould and buckling mutually, the second mould plastics the groove with the shaping cavity intercommunication, just it bulldozes on the second the wane, so that keep away the position piece and keep away from the shaping cavity.

In one embodiment, the rocker includes a supporting portion disposed on the lower injection mold, a push-out portion disposed on one side of the supporting portion, and a recovery portion disposed on the other side of the supporting portion.

In one embodiment, the continuously-transitional heterochromatic shell injection mold further comprises a push rod, one end of the push rod is arranged on the first upper mold, and the other end of the push rod is used for pushing the push-out part.

In one embodiment, the continuous transition injection mold for the different-color shell further comprises a push rod, one end of the push rod is arranged on the second upper mold, and the other end of the push rod is used for pushing and pressing the recovery part.

In one embodiment, the bit avoiding block is disposed on the recycling part.

In one embodiment, the lower die assembly further comprises a support, and the support is arranged on the injection molding lower die.

In one embodiment, the lower die assembly further includes a sliding block and a limiting post, the sliding block is slidably disposed on the support, the limiting post is disposed on the sliding block, and the sliding block is provided with a guiding through hole.

In one embodiment, the continuously-transitional different-color housing injection mold further includes a fixing seat and a guide rod, the fixing seat is disposed on the first upper mold, the guide rod is disposed on the fixing seat, and the guide rod is inserted into the guide through hole.

In one embodiment, the continuously-transitioned injection mold for a different-color housing further includes a bearing seat and a guide post, the bearing seat is disposed on the second upper mold, the guide post is disposed on the bearing seat, and the guide post is inserted into the guide through hole.

In one embodiment, the continuously-transitional different-color shell injection mold further comprises a demolding column, the injection lower mold is further provided with a demolding through hole, and the demolding column penetrates through the demolding through hole.

Compared with the prior art, the invention has at least the following advantages:

the invention relates to a continuous transition injection mold for a heterochromatic shell, which comprises a lower mold component, a first upper mold and a second upper mold, wherein the lower mold component comprises an injection lower mold, a position avoiding block and a warping plate, the warping plate is arranged on the injection lower mold, the position avoiding block is arranged on the warping plate, a forming groove is formed in the injection lower mold, a first injection groove is formed in the first upper mold, a second injection groove is formed in the second upper mold, when the first upper mold is buckled with the injection lower mold, the first injection groove and the forming groove jointly enclose a forming cavity, the forming cavity is used for forming a heterochromatic part, meanwhile, the first upper mold pushes and presses the warping plate to enable the position avoiding block to be accommodated in the forming cavity, a plastic runner during secondary injection is reserved, when the second upper mold is buckled with the injection lower mold, the second injection groove is communicated with the forming cavity, injected plastic covers a water gap of the heterochromatic part, and enables the outer surface of the heterochromatic part to keep, meanwhile, the second upper die pushes and presses the warping plate to enable the avoiding block to leave the forming cavity, namely, the reserved plastic runner is avoided and used for forming the body, the first insert, the second insert and the third insert, so that the different-color part is effectively prevented from falling off, and the service life of the different-color shell is prolonged.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic view of a different color housing;

FIG. 2 is a schematic view of a portion of a continuous transition injection mold for a different color housing according to an embodiment of the present invention;

FIG. 3 is a schematic view of a lower mold assembly of the continuous transition heterochromatic housing injection mold shown in FIG. 2;

FIG. 4 is a schematic view of a first upper mold of the continuous transition different color housing injection mold shown in FIG. 2;

FIG. 5 is a schematic diagram of a second top mold of the continuous transition heterochromatic housing injection mold shown in FIG. 2;

FIG. 6 is a schematic view of the first upper mold and the cooling coil of the continuous transition injection mold for a different color shell as shown in FIG. 2;

FIG. 7 is a schematic view of the continuous transition different color housing injection mold shown in FIG. 2 from another perspective of the first upper mold;

FIG. 8 is a schematic structural diagram of a first upper mold and a mold core cover plate of the continuous transition different-color shell injection mold shown in FIG. 2;

FIG. 9 is a schematic structural view of a stripper assembly of the continuously transitioning heterochromatic housing injection mold shown in FIG. 2;

fig. 10 is a partial schematic view of the stripper assembly shown in fig. 9.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

It is noted that as used herein, reference to an element being "connected" to another element also means that the element is "in communication" with the other element, and fluid can be in exchange communication between the two.

Referring to fig. 2 and 3, a continuous transition injection mold 20 for a different-color housing includes a lower mold assembly 100, a first upper mold 200, and a second upper mold 300, wherein the first upper mold 200 is used to injection mold a different-color part 12 of the different-color housing 10 when being fastened to the lower mold assembly 100, and the second upper mold 300 is used to injection mold a body 11, a first insert 13, a second insert 14, and a third insert 15 of the different-color housing 10 when being fastened to the lower mold assembly 100, so that the different-color housing 10 can be injection molded by combining the first upper mold 200 and the second upper mold 300 with the lower mold assembly 100, respectively.

Referring to fig. 2 and 4, the lower mold assembly 100 includes an injection molding lower mold 110, a position-avoiding block 120 and a warping plate 130, the warping plate 130 is disposed on the injection molding lower mold 110, the injection molding lower mold 110 is provided with a forming groove 111 and a position-avoiding through hole 112, the position-avoiding through hole 112 is communicated with the forming groove 111, one end of the position-avoiding block 120 is disposed on the warping plate 130, and the other end of the position-avoiding block 120 penetrates through the position-avoiding through hole 112. It should be noted that the lower injection mold 110 is provided with a forming groove 111 and a position-avoiding through hole 112, the forming groove 111 is used for injection molding the different-color part 12 of the different-color housing 10, the position-avoiding through hole 112 is communicated with the forming groove 111, specifically, the position-avoiding through hole 112 is located at the bottom of the forming groove 111, the position-avoiding through hole 112 penetrates through the lower injection mold 110, the rocker 130 is mounted at the bottom of the lower injection mold 110, so that the position-avoiding block 120 passes through the position-avoiding through hole 112 and is connected with the rocker 130, in one embodiment, the position-avoiding groove is formed at the bottom of the lower injection mold 110, the rocker 130 is then accommodated in the position-avoiding groove, the rocker 130 is then limited in the position-avoiding groove by a fixing plate, it should be noted that a protrusion is provided at the middle position of the rocker 130, a limiting groove is formed at the middle position of the fixing plate, and the protrusion of the rocker 130 is sunk into the limiting groove of the fixing plate, so that the rocker 130 can, because the fixed plate is fixed in the bottom of the lower injection mold 110, the rocker 130 is disposed on the lower injection mold 110, and thus, the tilting block 120 mounted and fixed on the rocker 130 can be driven to move in the tilting through hole 112 in a lifting manner by the swinging of the rocker 130.

Referring to fig. 2 and 5, the first upper mold 200 is provided with a first injection molding groove 210 and a glue inlet through hole 220, the glue inlet through hole 220 is communicated with the first injection molding groove 210, when the first upper mold 200 is fastened with the lower injection molding mold 110, an inner side wall of the first injection molding groove 210 and an inner side wall of the forming groove 111 jointly enclose a forming cavity, and the first upper mold 200 pushes the rocker 130 so that the avoiding block 120 is accommodated in the forming cavity. It should be noted that, when the first upper mold 200 is fastened to the lower injection mold 110, the inner sidewall of the first injection mold 210 and the inner sidewall of the molding groove 111 together form a molding cavity, the molding cavity is used for injection molding the different color component 12 of the different color housing 10, plastic enters from the glue inlet through hole 220 and then flows into the molding cavity, so that the different color component 12 is molded in the molding cavity, when the first upper mold 200 is fastened to the lower injection mold 110, the first upper mold 200 also pushes the rocker 130, because the rocker 130 can swing left and right, when the first upper mold 200 pushes the rocker 130, one pushed end of the rocker 130 will be pushed down and move down, the other end of the rocker 130 will tilt up and move up, because the avoiding block 120 is disposed on the other end of the rocker 130, the avoiding block 120 is inserted and moves up to make the avoiding block 120 move up for a certain distance, at this time, by injecting plastic into the molding cavity, the displacement block 120 is moved upwards once by a distance, so that the molding cavity is not filled with plastic due to the displacement of the displacement block 120, and a plastic runner is reserved for the second injection molding, thereby completing the injection molding of the heterochromatic part 12 of the heterochromatic housing 10.

Referring to fig. 3 again, the second upper mold 300 is provided with a second injection molding groove 310, a glue flowing groove 320 and a glue inlet channel 330, the glue inlet channel 330 is communicated with the glue flowing groove 320, the glue flowing groove 320 is communicated with the second injection molding groove 310, when the second upper mold 300 is fastened with the lower injection molding mold 110, the second injection molding groove 310 is communicated with the molding cavity, and the second upper mold 300 pushes the rocker 130 so as to enable the avoiding block 120 to be away from the molding cavity. It should be noted that, after the first upper mold 200 is separated from the lower injection mold 110, the second upper mold 300 is fastened with the lower injection mold 110, the inner sidewall of the first injection groove 310 and the outer sidewall of the formed different-color component 12 together form an injection molding cavity, the injection molding cavity includes a bottom injection molding cavity, a first injection molding cavity, a second injection molding cavity and a third injection molding cavity, the bottom injection molding cavity is used for forming the body 11 of the different-color shell 10, the first injection molding cavity is used for forming the first insert 13 of the different-color shell 10, the second injection molding cavity is used for forming the second insert 14 of the different-color shell 10, the third injection molding cavity is used for forming the third insert 15 of the different-color shell 10, and it should be noted that, at this time, the bottom injection molding cavity, the first injection molding cavity, the second injection molding cavity and the third injection molding cavity are not communicated with each other, at this time, the plastic enters the flow groove 320 from the flow groove 320 and flows into the bottom injection molding cavity, that is, only the body 11 is molded, and thus, while the second upper mold 300 is engaged with the lower injection mold 110, the second upper mold 300 pushes the rocker 130, specifically, the second upper mold 300 pushes the side of the rocker 130 on which the stopper 120 is mounted, so that the stopper 120 moves downward, and the stopper 120 is moved away from the molding cavity, and thus, the bottom injection cavity, the first injection cavity, the second injection cavity, and the third injection cavity are sequentially communicated, and the plastic may be molded into the body 11, the first insert 13, the second insert 14, and the third insert 15, so that, by providing the rocker 130 and the stopper 120, when the first upper mold 200 is engaged with the lower injection mold 110, the first upper mold 200 pushes the rocker 130, so that the stopper 120 moves upward, thereby leaving a flow path for the glue to be inserted when the second upper mold 300 is engaged with the lower injection mold 100, when the different-color part 12 of the different-color housing 10 is injection molded, a water gap is reserved at the side edge of the different-color part 12 instead of flowing on the surface of the different-color part 12, so that the surface smoothness of the different-color part 12 is ensured, then the body 11, the first insert 13, the second insert 14 and the third insert 15 can be molded by using a flow channel reserved under the matching of the avoiding block 120 and the rocker 130, namely, the different-color part 12 during the first injection molding is pressed by plastic during the second injection molding, the viscosity of the different-color part 12, the body 11, the first insert 13, the second insert 14 and the third insert 15 is increased, the problem that the different-color part 12 is peeled off is effectively prevented, and the service life of the different-color housing 10 is effectively prolonged.

Referring to fig. 2 and 4 again, the rocker 130 includes a supporting portion 131, a pushing portion 132 and a recycling portion 133, the supporting portion 132 is disposed on the lower injection mold 110, the pushing portion 132 is disposed on one side of the supporting portion 131, and the recycling portion 133 is disposed on the other side of the supporting portion 131. It should be noted that the rocker 130 can be moved left and right, specifically, the supporting portion 131 of the rocker 130 is fixed with the lower injection mold 110, the pushing portion 132 is disposed on one side of the supporting portion 131, and the retrieving portion 133 is disposed on the other side of the supporting portion 131, such that when the first upper mold 200 is fastened to the lower injection mold 110, the first upper mold 200 pushes the pushing portion 132 to move downward, the retrieving portion 133 is tilted to move upward, the avoiding block 120 is mounted on the retrieving portion 133, so as to move the avoiding block 120 upward, that is, the avoiding block 120 is accommodated in the molding cavity, so as to reserve a flow channel for the plastic flow when the second upper mold 300 is fastened to the lower injection mold 110, and when the second upper mold 300 is fastened to the lower injection mold 110, the second upper mold 300 pushes the retrieving portion 133, so as to move the avoiding block 120 downward, so as to allow the plastic to flow through the flow channel reserved by the avoiding block 120, to mold the body 11, the first insert 13, the second insert 14 and the third insert 15.

Referring to fig. 2 and 5 again, the continuous transition different-color housing injection mold 20 further includes a push rod 400, one end of the push rod 400 is disposed on the first upper mold 200, and the other end of the push rod 400 is used for pushing the push-out portion 132. It should be noted that, since the rocker 130 is located at the bottom of the lower injection mold 110, if a part for pushing the pushing portion 132 of the rocker 130 is directly processed on the first upper mold 200, the processing of the first upper mold 200 is difficult, and therefore, by installing the push rod 400 on the first upper mold 200, the push rod 400 is driven by the first upper mold 200 to push the pushing portion 132, so that the block 120 is inserted into the molding cavity, thereby reserving a flow passage through which the plastic flows for the second injection molding.

Referring to fig. 3 again, the continuous transition injection mold 20 for a different-color housing further includes a top bar 500, one end of the top bar 500 is disposed on the second upper mold 300, and the other end of the top bar 500 is used for pushing the recycling portion 133. It should be noted that, if a component for pushing and pressing the recycling portion 133 is directly disposed on the second upper die 300, since the rocker 130 is located at the bottom of the injection lower die 110, it is difficult to process the second upper die 300, and therefore, the ejector rod 500 and the second upper die 300 are mounted together to realize that the second upper die 300 drives the ejector rod 500 to push and press the recycling portion 133, so that the avoiding block 120 can move downward, and a flow channel reserved in the molding cavity for flowing through plastic is avoided, so that when performing the second injection molding, the plastic can be molded into the body 11, the first insert 13, the second insert 14, and the third insert 15 through the reserved flow channel.

Referring to fig. 4 again, the avoiding block 120 is disposed on the recycling portion 133. It should be noted that, in order to enable the avoiding block to move up and down in the vertical direction, the avoiding block 120 is mounted and fixed on the recovering portion 133 on the tilting plate 130, so that when the push rod 400 pushes the pushing portion 132, the recovering portion 133 is tilted, and the avoiding block 120 is tilted, that is, the avoiding block 120 moves up and down, and when the push rod 500 pushes the recovering portion 133, the recovering portion 133 moves down, so that the avoiding block 120 moves down, and the reserved flow channel through which the plastic flows is avoided.

Referring to fig. 2 again, the lower mold assembly 100 further includes a support 140, and the support 140 is disposed on the injection mold 110. It should be noted that, if the injection molding lower mold 110 is directly installed on the injection molding machine, the injection molding lower mold 110 is easily damaged, and it is difficult to directly control the injection molding lower mold 110 to be fastened on the first upper mold 200 or the second upper mold 300, so that the injection molding lower mold 110 is installed on the support 140, and the support 140 is driven to drive the injection molding lower mold 110, so that the injection molding lower mold 110 can be better controlled and protected.

Referring to fig. 2 again, the lower mold assembly 100 further includes a sliding block 150 and a limiting post 160, the sliding block 150 is slidably disposed on the support 140, the limiting post 160 is disposed on the sliding block 150, and the sliding block 150 is provided with a guiding through hole 151. It should be noted that, because the round hole has been seted up to the body 11 bottom of heterochromatic shell 10, consequently, utilize slider 150 and spacing post 160 to form out the round hole of body 11, specifically, when mould 300 and the lower mould 110 lock of moulding plastics are in the same place on the second, slider 150 slides and is close to the shaping cavity, be close to and insert the shaping cavity with driving spacing post 160, treat the back that finishes of moulding plastics, slider 150 slides and keeps away from the shaping cavity, thereby make spacing post 160 draw out from fashioned heterochromatic shell 10 includes body 11, thereby make body 11 shaping out the round hole, drive spacing post 160 through setting up slider 150, make continuous transition's heterochromatic shell injection mold 20 can be more nimble.

Referring to fig. 2 again, the continuously-transitional different-color housing injection mold 20 further includes a fixing base 600 and a guide rod 700, the fixing base 600 is disposed on the first upper mold 200, the guide rod 700 is disposed on the fixing base 600, and the guide rod 700 is inserted into the guide through hole 151. It should be noted that, the fixing base 600 is fixed on the first upper die 200, so that the first upper die 200 can be better protected, and the guide bar 700 is mounted on the fixing base 600, when the fixing base 600 is close to the support 140, so that the first upper mold 200 is fastened to the lower injection mold 110, and the guide rod 700 is inserted through the guide through hole 151, because the guide rod 700 is installed obliquely, and the guide through hole 151 is also an oblique hole, the slider 150 can be driven to move horizontally by the lifting movement of the guide rod 700, and then drive spacing post 160 and insert or keep away from the shaping cavity to the round hole that can shaping body 11 utilizes the up-and-down motion between fixing base 600 and the support 140, makes slider 150 carry out the motion of horizontal direction, does not need additionally to add the drive source and drives slider 150, thereby makes the heterochromatic shell injection mold 20 of continuous transition compacter.

In one embodiment, the continuous transition injection mold 20 for a different color housing further includes a bearing seat and a guiding post, the bearing seat is disposed on the second upper mold 300, the guiding post is disposed on the bearing seat, and the guiding post penetrates through the guiding through hole 151. It should be noted that, similarly, the second upper mold 300 is fixed on the bearing seat, the second upper mold 300 can be better protected, and then the guide post is installed on the bearing seat in an inclined manner, so that when the bearing seat drives the second upper mold 300 to be buckled with the lower injection mold 110, the guide post can penetrate through the guide through hole 151, so that the slider 150 can move in the horizontal direction, so that the limit post 160 is inserted into or away from the molding cavity, and the slider 150 can move in the horizontal direction by utilizing the up-and-down movement between the bearing seat and the support 140, and the slider 150 is driven without additionally adding a driving source, so that the continuous transition heterochromatic shell injection mold 20 is more compact.

Referring to fig. 2 again, the continuously-transitional different-color housing injection mold 20 further includes a demolding pillar 800, the lower injection mold 110 is further provided with a demolding through hole 113, and the demolding pillar 800 penetrates through the demolding through hole 113. It should be noted that, after the injection molding of the different-color housing 10 is completed, the different-color housing 10 needs to be taken out from the mold, so that the lower mold 110 for injection molding is provided with the demolding through hole 113, and the demolding column 800 is accommodated in the demolding through hole 113, when the different-color housing 10 needs to be demolded, the demolding column 800 slides in the demolding through hole 113, so that the demolding column 800 performs ejection demolding on the different-color housing 10, in an embodiment, the different-color housing injection mold 20 for continuous transition further includes a demolding plate and a loop bar, the loop bar is disposed on the support 140, the demolding plate is used for sliding on the loop bar, the demolding column 800 is mounted and fixed on the demolding plate, and when the demolding plate is ejected, the demolding column 800 can be driven to slide in the demolding through hole 113, so that the movement of the demolding column 800 can be better controlled.

Referring to fig. 6, the first upper mold 200 further defines a cold water tank 230, the continuously-transitional heterochromatic shell injection mold 20 further includes a cooling spiral pipe 1000, the cooling spiral pipe 1000 defines a water inlet through hole 1100 and a spiral groove 1200, the spiral groove 1200 is communicated with the water inlet through hole 1100, and the cooling spiral pipe 1000 is accommodated in the cold water tank 230. It should be noted that, in the injection molding process, cooling the injection mold is an important part of injection molding processing, and if the mold is not cooled in place, it is easy to cause a failure of the molded plastic part in the mold, for example, the temperature of the plastic part in the molding cavity of the mold is not consistent due to uneven cooling in the mold, and further the stress of the plastic part is not consistent at some weak positions or thinner rib positions, so that the molded plastic part is deformed, or even the appearance surface of the plastic part is burned due to too high temperature of the mold, so that the appearance surface of the plastic part has patterns, thereby causing the quality degradation of the plastic part; moreover, for the injection molding industry, it is a goal that technicians in this field always pursue to improve the injection molding efficiency of plastics, after the plastic part is injection molded by the mold, the mold is accelerated to cool down the temperature of the plastic part and to discharge the plastic part rapidly, which is the main research direction for technicians in this field to improve the injection molding efficiency of the mold, a spiral groove, that is, a spiral groove 1200, is formed on the outer surface of the cooling spiral pipe 1000 as shown in fig. 6, a water inlet through hole 1100 is formed at the center of the cooling spiral pipe 1000, the water inlet through hole 1100 is communicated with the spiral groove 1200 by forming a groove on the pipe wall of the cooling spiral pipe 1000 at the bottom of the cooling spiral pipe 1000, it should be noted that the cold water tank 230 does not penetrate through the first upper mold 200, and the distance between the bottom of the cold water tank 230 and the cavity at the bottom of the first upper mold 200 is maintained between 2cm and 3cm, then, sealing glue is coated on the outer surface of the cooling spiral pipe 1000, then the cooling spiral pipe 1000 is inserted into the cold water tank 230, and the bottom of the cooling spiral pipe 1000 is abutted with the bottom of the cold water tank 230, so that when cold water is filled into the cooling spiral pipe 1000 from the water inlet through hole 1100, the cold water enters the bottom of the cooling spiral pipe 1000 along the water inlet through hole 1100, then the cold water enters the end of the spiral groove 1200 at the bottom of the cold water tank 230 along the joint of the water inlet through hole 1100 and the spiral groove 1200, then the cold water flows to the top of the cold water tank 230 from the bottom of the cold water tank 230 along the spiral groove 1200, then the cold water flows back to an external cooling system, and then the cooled cold water is sent to the water inlet through hole 1100, thus, one cycle of cooling the cold water is realized, and the residence time of the cold water on the first upper die 200 can be increased by arranging the spiral groove 1200, thereby can take away more heats on die block mould benevolence 300, make first last mould 200 can obtain the cooling more quickly, and then make the plastic part can cool off fast in order to realize the drawing of patterns to the plastic part, it needs to notice, cooling spiral pipe 1000 can change the size according to actual conditions, can set up a plurality of cold water tanks 230 on first last mould 200, make the distribution that cold water tank 230 can be even in the cavity top of first last mould 200, thereby make the temperature everywhere of the cavity of first last mould 200 can reduce steadily, thereby effectively prevent to make the plastic part take place to warp because the temperature imbalance everywhere of first last mould 200, thereby improve the production efficiency of moulding plastics of plastic part effectively.

Referring to fig. 7, the first upper mold 200 is divided into two halves from the middle, in one half of the first upper mold 200, a water flowing groove 240, a first through hole 250 and a second through hole 260 are formed on the side wall of the half, the first through hole 250 and the second through hole 260 are communicated with each other inside the half, in one embodiment, two inclined holes are drilled on the side wall of the half by using a drill, and the two inclined holes are communicated with each other inside the half, so that the purpose of communicating the first through hole 250 and the second through hole 260 is achieved, the second through hole 260 is communicated with the water flowing groove 240, then a plurality of first through holes 250 and a plurality of second through holes 260 are formed on the side wall of the half, the plurality of first through holes 250 are respectively communicated with the plurality of second through holes 260 in a one-to-one correspondence, and the plurality of first through holes 250 are arranged at intervals, the plurality of second through holes 260 are arranged at intervals, then, for the half of the second upper mold 200, the side wall is correspondingly provided with a water flowing groove 240, a plurality of first through holes 250 and a plurality of second through holes 260, and then the half bodies of the two first upper dies 200 are buckled together to form a complete first upper die 200, so that the inner side walls of the water flowing grooves 240 of the two half bodies can enclose a water inlet channel, the first through holes 250 and the second through holes 260 can form a spiral runner, the bottom of the water inlet channel is communicated with the runner, so that when cold water flows in from the water inlet channel, the cold water flows into the runner from the bottom of the cold water channel, then flows into external cooling equipment after flowing through the runner, and then flows back to the water inlet channel to keep circulation, and the cold water can directly contact with the die by directly arranging the cold water channel on the first upper die 200, so that the temperature of the die can be better taken away, the cooling effect on the die is improved, and the cooling speed of the die is accelerated, thereby make inside plastic part can be more fast cooling and carry out the drawing of patterns to accelerate injection moulding's efficiency.

Referring to fig. 8, a spiral water channel 270 is formed on the surface of the first upper mold 200, the continuously-transitional heterochromatic housing injection mold 20 further includes a mold core cover plate 2000, the mold core cover plate 2000 is formed with a water inlet 2100 and a water outlet 2200, the mold core cover plate 2000 is disposed on the first upper mold 200, two ends of the water channel 270 are respectively communicated with the water inlet 2100 and the water outlet 2200, it should be noted that, for the water channel 270, the bending degree and the trend can be changed according to the actual situation, so that the first upper mold 200 can be integrally cooled, specifically, cold water flows into the water channel 270 from the water inlet 2100 of the mold core cover plate 2000, then flows through the water channel 270 and finally flows back to the external water cooling equipment from the water outlet 2200, and then the cooled cold water is newly introduced into the water inlet 2100, so that the cold water circulates through the first upper mold 200, thereby cooling the first upper mold 200, because the water channel 270 is laid on the first upper die 200 to increase the flowing range of the cold water, thereby improving the heat absorption capacity of the cold water, and further enabling the die to be rapidly cooled, so that the plastic part in the die can be rapidly cooled to realize the die release, it should be noted that, in order to prevent the cold water in the water channel 270 from overflowing from the gap between the first upper die 200 and the die core cover plate 200, which results in the path through which the cold water flows being shortened, and further the cold water staying on the first upper die 200 for a too short time, thereby reducing the cooling effect on the die, the surface of the first upper die 200 is coated with the adhesive, so that the die core cover plate 2000 can be tightly attached to the first upper die 200, thereby effectively preventing the cold water from overflowing from the gap between the die core cover plate 2000 and the first upper die 200, thereby ensuring that the staying time of the cold water on the first upper die 200 is long enough, and further effectively ensuring the cooling effect of the cold water on the, the cooling speed of the mold is accelerated, so that the plastic part inside the mold can be rapidly cooled and demolded, and the injection molding processing efficiency is greatly improved.

Referring to fig. 9 and 10, the continuous transition injection mold 20 for a different color housing further includes a mold release assembly 3000, the mold release assembly 3000 includes a control member 3100, a first mold release member 3200, a second mold release member 3300, and a locking post 3400, the first mold release member 3200 is slidably disposed on the injection lower mold 110, the locking post 3400 is disposed on the first mold release member 3200, the second mold release member 3300 is slidably disposed on the locking post 3400, the first mold release member 3200 is used for pushing the plastic part to release the plastic part, the second mold release member 3300 is used for pushing the plastic part to release the plastic part, the locking post 3400 is used for locking the second mold release member 3300, so that after the second stripper 3300 slides a certain distance on the locking post 3400, the second stripper 3300 will be locked with the first stripper 3200, the control key 3100 is used to control the first stripper 3200 and the second stripper 3300, so that first stripper 3200 moves synchronously or asynchronously with second stripper 3300; it should be noted that, for the injection molded plastic part, the demolding operation is required, and since the injection molded plastic part is various in types, each injection mold needs to design a matched demolding mechanism to realize demolding of the plastic part, so that not only is the consumed resource increased, but also a large amount of time is required to produce the mold, thereby reducing the production efficiency of the mold, in the demolding mechanism, there is a first-stage demolding and a second-stage demolding, and the specific number of used demolding stages depends on the specific plastic part, so that the poor compatibility of the demolding mechanism can be caused, and the first-stage demolding and the second-stage demolding in the mold can be compatible by using the demolding assembly 3000.

The first demolding member 3200 includes a first supporting plate 3220 and a first pillar 3210, the first pillar 3210 is disposed on the first supporting plate 3220, the first supporting plate 3220 is slidably disposed on the injection lower mold 110, the first pillar 3210 is used for pushing the plastic part in the mold to demold the plastic part,

the second mold stripping component 3300 is located above the first mold stripping component 3200, the second mold stripping component 3300 comprises a second top pillar 3310 and a second supporting plate 3320, the second top pillar 3310 is disposed on the second supporting plate 3320, the second supporting plate 3320 is slidably disposed on the lower mold 110, the second supporting plate 3320 is located above the first supporting plate 3220, the second top pillar 3310 is also used for pushing the plastic part of the mold to strip the plastic part, one end of the locking pillar 3400 is disposed on the first supporting plate 3220,

the other end of the locking column 3400 is inserted with a second supporting plate 3320, a clamping table 3410 is arranged on the locking column 3400,

the control member 3100 includes a control lever 3110, a direction-changing lever 3120, a fastening lever 3130 and a control spring 3140, two ends of the control spring 3140 are respectively connected to the second supporting plate 3320 and the control lever 3110, the direction-changing lever 3120 is connected to the control lever 3110, the first supporting plate 3220 is provided with a first fastening groove 3221, the second supporting plate 3320 is provided with a second fastening groove 3321, the fastening lever 3130 is connected to the direction-changing lever 3120, and the fastening lever 3130 is accommodated in the first fastening groove 3221 and the second fastening groove 3321;

when the injection molding machine pushes the control lever 3110, the control lever 3110 moves upward, the control spring 3140 is compressed, the control lever 3110 pushes the direction changing lever 3120 to move, causing reversing lever 3120 to pull fastening lever 3130 closer to control lever 3110, thereby disengaging the fastening rod 3130 from the first catching groove 3221 and the second catching groove 3321, separating the first supporting plate 3220 from the second supporting plate 3320, then the injection molding machine will push the second supporting plate 3320, when the second supporting plate 3320 moves upward, the second supporting post 3310 will be driven to move upward, when the second supporting plate 3320 moves a certain distance, the second supporting plate 3320 enters the clamping table 3410 of the locking column 3400, so that the second supporting plate 3320 drives the first supporting plate 3220 to move upwards, further driving the first top pillar 3210 to move upward, thus realizing the sequential movement of the second top pillar 3310 and the first top pillar 3210, i.e., realizing the secondary demolding operation; when the primary demolding operation is required, the injection molding machine does not push the control rod 3110, but directly pushes the second supporting plate 3320, specifically, since the injection molding machine does not push the control rod 3110, the control rod 3110 is located at the initial position under the restoring elasticity of the control spring 3140, the control rod 3110 pushes the direction changing rod 3120 to the initial position, so that the direction changing rod 3120 pushes the fastening rod 3130 to the initial position, that is, the fastening rod 3130 is received in the first groove 3221 and the second groove 3321, the fastening rod 3130 fixes the first supporting plate 3220 and the second supporting plate 3320 together, so that when the injection molding machine pushes the second supporting plate 3320, the first supporting plate 3220 moves upward along with being pushed, that is, the first supporting plate 3220 and the second supporting plate 3320 move upward synchronously, thereby achieving the primary demolding movement, so that the control rod 3110 controls the movement of the direction changing rod 3120, and then, the movement of the fastening rod 3130 is controlled by the direction changing rod 3120, so that the fastening rod 3130 can be accommodated in the first slot 3221 and the second slot 3321, or separated from the first slot 3221 and the second slot 3321, thereby realizing that the fixing or separation of the first supporting plate 3220 and the second supporting plate 3320 is controlled by the control rod 3110, and further enabling the second supporting plate 3320 and the first supporting plate 3220 to perform a synchronous or asynchronous demolding operation, that is, combining the first-stage demolding and the second-stage demolding, thereby improving the compatibility of the mold demolding structure, so that the mold design can be more flexible, and the production efficiency of the mold can be improved.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A continuous transition heterochromatic shell injection mold is characterized by comprising:

2. The continuous transition different color housing injection mold according to claim 1, wherein the rocker comprises a supporting portion, a pushing portion and a recovering portion, the supporting portion is disposed on the lower injection mold, the pushing portion is disposed on one side of the supporting portion, and the recovering portion is disposed on the other side of the supporting portion.

3. The continuous transition molding die for the different-color shell according to claim 2, further comprising a push rod, wherein one end of the push rod is disposed on the first upper die, and the other end of the push rod is used for pushing the push-out portion.

4. The continuous transition molding die for a different color shell according to claim 2, further comprising a push rod, wherein one end of the push rod is disposed on the second upper die, and the other end of the push rod is used for pushing and pressing the recovery portion.

5. The continuous transition heterochromatic housing injection mold of claim 2, wherein the dislocation block is disposed on the recovery portion.

6. The continuous transition different color housing injection mold of claim 1, wherein the lower mold assembly further comprises a seat disposed on the injection lower mold.

7. The continuous-transition injection mold for a different-color shell according to claim 6, wherein the lower mold assembly further comprises a sliding block and a limiting post, the sliding block is slidably disposed on the support, the limiting post is disposed on the sliding block, and the sliding block is provided with a guide through hole.

8. The continuous transition molding die for the different-color shell according to claim 7, further comprising a fixing seat and a guide rod, wherein the fixing seat is disposed on the first upper die, the guide rod is disposed on the fixing seat, and the guide rod is inserted into the guide through hole.

9. The continuous transition molding die for the different-color shell according to claim 7, further comprising a bearing seat and a guide post, wherein the bearing seat is disposed on the second upper die, the guide post is disposed on the bearing seat, and the guide post is disposed in the guide through hole.

10. The continuous-transition different-color shell injection mold according to claim 1, further comprising a demolding column, wherein the lower injection mold further comprises a demolding through hole, and the demolding column penetrates through the demolding through hole.