CN120735270B - Injection mold convenient to drawing of patterns - Google Patents

Injection mold convenient to drawing of patterns

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Publication number
CN120735270B
CN120735270B CN202511241413.3A CN202511241413A CN120735270B CN 120735270 B CN120735270 B CN 120735270B CN 202511241413 A CN202511241413 A CN 202511241413A CN 120735270 B CN120735270 B CN 120735270B
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CN
China
Prior art keywords
mold
fixedly installed
cavity
water
pipe
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CN202511241413.3A
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Chinese (zh)
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CN120735270A (en
Inventor
范军辉
叶米波
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Nantong Jiangguang Moulding Technology Co ltd
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Nantong Jiangguang Moulding Technology Co ltd
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Priority to CN202511241413.3A priority Critical patent/CN120735270B/en
Publication of CN120735270A publication Critical patent/CN120735270A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/72—Heating or cooling
    • B29C45/73—Heating or cooling of the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/4005—Ejector constructions; Ejector operating mechanisms
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

本发明涉及注塑模具技术领域，具体为一种便于脱模的注塑模具，包括模具底座，所述模具底座的上表面固定安装有定模具，所述定模具的上方设置有动模具，所述定模具的内部上方设置有成型腔，所述定模具的内部下方设置有冷却组件，有益效果为：通过在定模具的下方设置冷却组件，利用水在下冷却腔、侧冷却腔内部流通实现成型腔内部注塑模型快速均匀冷却，而后，将动模具拆卸下来，使顶出咬合板在顶出弹片的弹性推动下被迫抬升，带动挤压栓塞上移，此时连接管密封塞可以打开，水会通过连接管进入水压顶出管使水压顶出管内部水压上升，密封顶出隔膜被顶起膨胀使活动短杆上升，顶出针会将成型腔内部工件顶出，实现轻松脱模的作用。

This invention relates to the field of injection mold technology, specifically to an injection mold that facilitates demolding. It includes a mold base, a fixed mold fixedly mounted on the upper surface of the mold base, a movable mold positioned above the fixed mold, a molding cavity positioned above the fixed mold, and a cooling assembly positioned below the fixed mold. The beneficial effect is that by placing the cooling assembly below the fixed mold, water flows through the lower and side cooling cavities to achieve rapid and uniform cooling of the injection mold inside the molding cavity. Then, the movable mold is disassembled, causing the ejector plate to be forced upwards under the elastic push of the ejector spring, which in turn moves the extrusion plug upwards. At this time, the connecting pipe sealing plug can be opened, and water enters the water pressure ejection pipe through the connecting pipe, causing the water pressure inside the water pressure ejection pipe to rise. The sealing ejection diaphragm is pushed up and expands, causing the movable short rod to rise, and the ejection pin ejects the workpiece from the molding cavity, achieving easy demolding.

Description

Injection mold convenient to drawing of patterns
Technical Field
The invention belongs to the technical field of injection molds, and particularly relates to an injection mold convenient to demold.
Background
Injection molding is a method for producing and shaping industrial products, which generally uses rubber injection molding and plastic injection molding, wherein thermoplastic plastics or thermosetting materials are made into plastic products with various shapes by using plastic molding dies, and the injection molding is mainly realized by an injection molding machine and the dies. Injection molds are critical tools in the injection molding process that determine the shape, size, and surface quality of the final plastic article. The existing injection mold is time-consuming and labor-consuming in the demolding process, can not stably demold, is easy to damage injection molding pieces, influences the qualification rate of the injection molding pieces, and reduces the working efficiency of the mold.
The chinese patent document with the existing publication number CN113071072a proposes shaping and demolding of injection molding parts by cooperation of a processing device and a displacement device, and then solves the above problems by cooperation of a cooling device to cool the inner side of the mold for demolding, but the main demolding action of the displacement device is to move the movable mold for demolding, but demolding is inconvenient between the injection molding workpiece and the fixed mold.
Therefore, the invention provides an injection mold convenient for demolding, which solves the problems that in the prior art, a moving mold is moved by a displacement device to be demolded, but demolding is inconvenient between an injection molding workpiece and a fixed mold, adopts the improvement of the moving mold and the fixed mold, sets a water cooling component in the fixed mold to accelerate the cooling speed of the injection mold, and simultaneously adds a water pressure ejection component, so that the molded workpiece is ejected by water pressure, thereby realizing the purpose of quick demolding.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an injection mold convenient for demolding so as to solve the problems in the prior art.
In order to achieve the purpose, the injection mold convenient to demolding comprises a mold base, wherein a fixed mold is fixedly arranged on the upper surface of the mold base, a movable mold is arranged above the fixed mold, a forming cavity is arranged above the inner part of the fixed mold, and a cooling assembly is arranged below the inner part of the fixed mold.
Preferably, the lower surface fixed mounting of movable mould has forming die, forming die's position and the position adaptation of forming die cavity, the lower surface symmetry fixed mounting of movable mould has the guide post all around, the inner wall of deciding the mould is provided with the guiding hole with the guide post adaptation all around, the inner wall bilateral symmetry of deciding the mould is provided with the pipe of moulding plastics, the inner wall middle part of deciding the mould is provided with the rubber overflow pipe, the mounting hole with injection molding pipe, rubber overflow pipe looks adaptation has been seted up to the inner wall of movable mould.
Preferably, the cooling assembly comprises a lower cooling cavity, a mixed guide plate is arranged in the lower cooling cavity, the mixed guide plates are distributed in a staggered mode, side cooling cavities are symmetrically arranged on two sides of the lower cooling cavity, the lower side of the side cooling cavities is communicated with the lower side of the lower cooling cavity, a water inlet pipe is fixedly arranged above one side inner wall of the fixed die, a water outlet pipe is fixedly arranged below the other side inner wall of the fixed die, and short sealing pressing strips are symmetrically arranged on two sides of the forming cavity.
Preferably, the inner wall of one side of the fixed die, which is close to the water inlet pipe, is provided with a water inlet cavity, the inner wall of one side of the fixed die, which is close to the water outlet pipe, is provided with a water outlet cavity, and the water inlet cavity and the water outlet cavity are communicated with the side cooling cavity.
Preferably, the inside bilateral symmetry of lower cooling chamber distributes there is the water pressure ejector tube, the inside below of side cooling chamber fixed mounting has the switch box, the water pressure ejector tube is close to one side inner wall fixed mounting of switch box has the connecting pipe, the connecting pipe runs through the lateral wall of switch box, the inboard surface hinge of switch box install with the connecting pipe sealing plug of connecting pipe looks adaptation.
Preferably, the inside fixed mounting of water pressure ejector tube has sealed ejecting diaphragm, the inside top fixed mounting of water pressure ejector tube has the sealing washer, the middle part slidable mounting of sealing washer has movable short rod, the lower surface fixed mounting of sealing washer has reset spring, reset spring's lower extreme and the bottom upper surface fixed connection of movable short rod, the top fixed mounting of movable short rod has the ejector pin, the bottom of shaping cavity is run through at the top of ejector pin.
Preferably, an extrusion plug is movably mounted in the switch box, the side surface of the extrusion plug is contacted with the side surface of the connecting pipe sealing plug, a water flowing groove is formed in the inner wall of the other side of the extrusion plug, a plugging block is arranged above the water flowing groove, and an ejection elastic sheet is fixedly mounted on the upper surface of the plugging block.
Preferably, the plugging block is fixedly arranged on the surface of the side cooling cavity, the upper surface of the extrusion plug is fixedly provided with an ejection biting plate, and the upper end of the ejection elastic sheet is fixedly connected with the lower surface of the ejection biting plate.
Preferably, the two sides of the forming die are symmetrically hinged with upper snap plates, the outer side of the upper snap plates is slidably provided with a long sealing pressing strip, and a spring plate is fixedly arranged above the long sealing pressing strip.
Preferably, the lower surface of the movable mould is provided with a movable groove matched with the upper occluding plate and the long sealing pressing strip, and the upper end of the elastic sheet is fixedly connected with the surface of the movable groove.
Compared with the prior art, the invention has the beneficial effects that:
Through setting up cooling module in the below of cover half utensil, utilize water to circulate in cooling chamber down, side cooling chamber inside and realize that the inside model of moulding plastics of die cavity is quick even cooled off, then, dismantle the movable mould, make ejecting bite plate forced the lifting under ejecting shell fragment's elasticity promotion, drive the extrusion plug and shift up, the connecting pipe sealing plug can be opened this moment, water can be through the connecting pipe entering water pressure ejector tube makes the inside hydraulic pressure of water pressure ejector tube rise, sealed ejecting diaphragm is by the jack-up inflation messenger movable short bar rise, the ejector pin can be with the ejecting of shaping intracavity portion work piece, realize the effect of light drawing of patterns, make the movable mould remove the drawing of patterns but the problem of being inconvenient for between injection moulding work piece and the cover half through displacement device in the prior art has been solved.
Drawings
Fig. 1 is a schematic diagram of a mold separation structure according to the present invention.
Fig. 2 is a schematic view of the structure of the mold after installation of the present invention.
Fig. 3 is a schematic diagram of a structure of the movable mold after disassembly.
Fig. 4 is a schematic view showing a bottom view of the movable mold of the present invention after disassembly.
Fig. 5 is a schematic view of a cross-sectional structure of the mold according to the present invention after installation.
Fig. 6 is an enlarged schematic view of the structure of fig. 5a according to the present invention.
Fig. 7 is a schematic cross-sectional view of the switch box after the mold is installed.
Fig. 8 is a schematic diagram of the structure of fig. 7B according to the present invention.
Fig. 9 is a schematic view of a sectional structure of the movable mold after disassembly in the present invention.
Fig. 10 is a schematic view of the structure of fig. 9C according to the present invention.
Fig. 11 is a schematic view of the structure of fig. 9D according to the present invention.
Fig. 12 is a schematic view of a disassembly structure of the fixed mold of the present invention.
Fig. 13 is a schematic diagram showing a disassembled top view structure of the fixed mold of the present invention.
Fig. 14 is a schematic view showing the overall structure of the connection between the switch box and the hydraulic ejector tube according to the present invention.
Fig. 15 is a schematic diagram of a single-sided structure of the connection between the switch box and the hydraulic ejector tube according to the present invention.
In the drawing, 1, a mold base, 2, a fixed mold, 21, a guide hole, 22, a molding cavity, 23, an injection molding pipe, 24, an overflow pipe, 25, a water inlet pipe, 26, a water outlet pipe, 27, a short sealing pressing strip, 3, a movable mold, 31, a guide post, 32, a molding mold, 321, an upper biting plate, 322, a long sealing pressing strip, 323, a spring plate, 3221, a movable extrusion block, 4, a cooling assembly, 41, a lower cooling cavity, 411, a mixing guide plate, 42, a side cooling cavity, 43, a hydraulic ejection pipe, 431, a connecting pipe, 432, a sealing ejection diaphragm, 433, a sealing ring, 4331, a return spring, 434, a movable short rod, 4341, an ejection needle, 44, a switch box, 441, an extrusion plug, 4411, a water flowing groove, 4412, a blocking block, 4413, an ejection spring plate, 442, an ejection biting plate, 4421, a guide plate, 4422, an extrusion plate, 45, a sealing plug, 46, a water inlet cavity, 47 and a water outlet cavity.
Detailed Description
In order to make the objects, technical solutions, and advantages of the present invention more apparent, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are some, but not all, embodiments of the present invention, are intended to be illustrative only and not limiting of the embodiments of the present invention, and that all other embodiments obtained by persons of ordinary skill in the art without making any inventive effort are within the scope of the present invention.
Example 1
Referring to fig. 1 to 15, the present invention provides a technical solution: the utility model provides an injection mold convenient to drawing of patterns, including mould base 1, the upper surface fixed mounting of mould base 1 has fixed mould 2, the top of fixed mould 2 is provided with movable mould 3, the inside top of fixed mould 2 is provided with shaping chamber 22, the inside below of fixed mould 2 is provided with cooling module 4, the lower surface fixed mounting of movable mould 3 has shaping mould 32, shaping mould 32's position and shaping chamber 22's position adaptation, the lower surface symmetry fixed mounting of movable mould 3 has guide post 31 all around, the inner wall of fixed mould 2 is provided with the guiding hole 21 with guide post 31 adaptation all around, the inner wall bilateral symmetry of fixed mould 2 is provided with injection pipe 23, the inner wall middle part of fixed mould 2 is provided with overflow pipe 24, the inner wall of the movable mold 3 is provided with mounting holes matched with the injection molding pipe 23 and the glue overflow pipe 24, the cooling assembly 4 comprises a lower cooling cavity 41, a mixed guide plate 411 is arranged in the lower cooling cavity 41, the mixed guide plates 411 are distributed in a staggered mode, side cooling cavities 42 are symmetrically arranged on two sides of the lower cooling cavity 41, a water inlet pipe 25 is fixedly arranged above one side inner wall of the fixed mold 2, a water outlet pipe 26 is fixedly arranged below the other side inner wall of the fixed mold 2, short sealing pressing strips 27 are symmetrically arranged on two sides of the forming cavity 22, a water inlet cavity 46 is arranged on one side inner wall of the fixed mold 2 close to the water inlet pipe 25, a water outlet cavity 47 is arranged on one side inner wall of the mold 2 close to the water outlet pipe 26, and the water inlet cavity 46 and the water outlet cavity 47 are communicated with the side cooling cavities 42;
In this embodiment, it should be noted that, the branch pipes of the injection pipe 23 and the glue overflow pipe 24 penetrate through the side wall of the molding cavity 22, the branch pipes of the glue overflow pipe 24 are located above the branch pipes of the injection pipe 23, the injection pipe 23 is symmetrically arranged at two sides of the glue overflow pipe 24, when the mold is installed, the guide post 31 is clamped into the guide hole 21 for limiting and guiding, the assembly of the fixed mold 2 and the movable mold 3 is completed, the injection pipe 23 is connected with the injection pipe for injection molding, the liquid is injected into the molding cavity 22 from two sides along with the branch pipes of the injection pipe 23, injection molding is performed under the cooperation of the molding cavity 22 and the molding mold 32, the redundant liquid overflows and is recovered from the branch pipes of the glue overflow pipe 24 above, the quality problem of injection molding caused by glue overflow is avoided, after injection molding is finished, the water inlet pipe 25, the water outlet pipe 26 and the water pipe are connected respectively, after the valve is opened, cooling water enters the side cooling cavity 42 through the water inlet pipe 46, the side cooling cavity 42 enters the lower cooling cavity 41 through the side cooling cavity 42, the water flow is uniformly distributed in a staggered manner, the water flow mixing plate 411 is used for uniform, the molding cavity 22 is cooled, the molding cavity is convenient for demoulding, and finally the water is discharged through the water outlet pipe 26 after the water outlet pipe is discharged through the water outlet pipe 47.
Example two
Referring to fig. 1 to 15, on the basis of the first embodiment, it is further proposed that the hydraulic ejector tube 43 is symmetrically distributed on both sides of the inside of the lower cooling chamber 41, a switch box 44 is fixedly installed below the inside of the side cooling chamber 42, a connecting tube 431 is fixedly installed on one side inner wall of the hydraulic ejector tube 43 close to the switch box 44, the connecting tube 431 penetrates through the side wall of the switch box 44, a connecting tube sealing plug 45 matched with the connecting tube 431 is hinged on the inner side surface of the switch box 44, a sealing ejection diaphragm 432 is fixedly installed inside the hydraulic ejector tube 43, a sealing ring 433 is fixedly installed above the inside of the hydraulic ejector tube 43, a movable short rod 434 is slidably installed in the middle of the sealing ring 433, a reset spring 4331 is fixedly installed on the lower surface of the sealing ring 433, the lower end of the movable short rod 434 is fixedly connected with the upper surface of the bottom of the movable short rod 434, an ejector pin 4341 is fixedly installed on the top of the movable short rod 434, the top of the ejector pin 4341 penetrates through the bottom of the forming cavity 22, an extrusion plug 441 is movably installed inside the switch box 44, the side surface of the extrusion plug 441 contacts with the side surface of the connecting tube 431, the side surface of the extrusion plug 45 is fixedly installed on the side of the sealing plug 4412, a sealing plug 4412 is fixedly installed on the upper surface of the ejector plate 4412 of the sealing plug 4412, and the upper surface of the ejector block 4412 is fixedly installed on the sealing plug 4412;
In this embodiment, after water is circulated and cooled for a period of time, the valve of the water outlet pipe 26 is closed, the movable mold 3 is disassembled, the ejection biting plate 442 is forced to be lifted under the elastic pushing of the ejection elastic sheet 4413 to drive the extrusion plug 441 to move upwards, at this time, the connecting pipe sealing plug 45 can be opened, water enters the water pressure ejection pipe 43 through the connecting pipe 431 to enable the water pressure inside the water pressure ejection pipe 43 to rise, the sealing ejection diaphragm 432 is lifted and expanded to enable the movable short rod 434 to rise, the ejection needle 4341 can eject the workpiece inside the forming cavity 22, the effect of easy demolding is achieved, and it is noted that when the extrusion plug 441 seals the connecting pipe sealing plug 45, the water channel 4411 can enable water to circulate inside the lower cooling cavity 41 and the side cooling cavity 42, but once the extrusion plug 441 ascends, the water channel 4411 is sealed by the sealing block 4412, at this time, the water flow is accelerated to flow into the water pressure ejection pipe 43 through the connecting pipe sealing plug 45, after demolding, the valve of the water inlet pipe 25 is closed, at this time, the valve of the water outlet pipe 26 is opened, the water pressure is partially discharged, the water pressure is lowered, the reset spring 4331 can drive the movable short rod 434 to reset, and the ejector plate 441 is reset, and the movable blocking plate 441 is installed again, and the movable blocking plate 442 is moved to the injection mold 2 again, thereby sealing the injection mold is closed by the extrusion plug 45, and the injection mold is closed by the extrusion plug 45.
Example III
Referring to fig. 1 to 15, based on the second embodiment, it is further proposed that water guide ports are uniformly distributed in the middle of the ejection bite plate 442, a baffle 4421 is hinged below the water guide ports, an extrusion inclined plate 4422 is arranged above the baffle 4421, the extrusion inclined plate 4422 is fixedly arranged on the surface of the side cooling cavity 42, and a water guide groove is formed below the inner wall of one side of the ejection bite plate 442, which is close to the connecting pipe sealing plug 45;
In this embodiment, the water guiding opening in the middle of the ejection biting plate 442 can enable water to circulate above the ejection biting plate 442 in addition to the circulation through the water channel 4411 during cooling flow, so that the upper and lower layers of water can circulate uniformly, the forming cavity 22 can be cooled and formed uniformly and rapidly, the water guiding plate 4421 guides the water at the water guiding opening when the extrusion plug 441 is in a state of closing the connecting pipe sealing plug 45, so that the water can circulate between the mixed water guiding plates 411, when the ejection biting plate 442 is lifted, the extrusion inclined plate 4422 can squeeze the water guiding plate 4421 to compress the water guiding plate 4421, and the water channel 4411 is closed, at this time, most of the water flows into the switch box 44 through the middle water guiding opening of the side cooling cavity 42 along the water guiding plate 4421 to accelerate the water flowing into the water ejection pipe 43 through the connecting pipe 431.
Example IV
Referring to fig. 1 to 15, on the basis of the third embodiment, it is further proposed that, symmetrically hinged on both sides of the forming mold 32, an upper engaging plate 321 is mounted, a long sealing bead 322 is slidably mounted on the outer side of the upper engaging plate 321, a spring plate 323 is fixedly mounted above the long sealing bead 322, a movable groove adapted to the upper engaging plate 321 and the long sealing bead 322 is formed on the lower surface of the movable mold 3, and the upper end of the spring plate 323 is fixedly connected with the surface of the movable groove;
In this embodiment, the long sealing bead 322 and the short sealing bead 27 are vertically distributed, two ends of the long sealing bead 322 are respectively provided with a movable extrusion block 3221, two ends of the short sealing bead 27 are respectively provided with a clamping hole matched with the movable extrusion block 3221, when the movable mold 3 and the fixed mold 2 are installed, the upper end of the ejection biting plate 442 is meshed with the inner side of the upper biting plate 321, a sealing rubber round bar is arranged below the inner side of the upper biting plate 321 and tightly clamped with the upper surface of the fixed mold 2, in addition, the upper biting plate 321 pushes the long sealing bead 322 to press downwards, so that the movable extrusion block 3221 is clamped into the clamping hole of the short sealing bead 27, the clamping state of the forming mold 32 and the ejection biting plate 442 is extruded and reinforced, and meanwhile, the ejection biting plate 442 is matched with the short sealing bead 27 above the fixed mold 2 to form a square full-surrounding sealing ring, so that the sealing effect is better when the fixed mold 2 and the movable mold 3 are injection molded.
Example five
Referring to fig. 1 to 15, on the basis of the fourth embodiment, the present embodiment further provides a method for using an injection mold convenient for demolding, including the following steps:
firstly, installing a mold, clamping a guide column 31 into a guide hole 21 for limiting and guiding, completing the assembly of a fixed mold 2 and a movable mold 3, and connecting an injection pipe 23 with an injection pipe for injection molding;
step two, injection molding, wherein liquid is injected into the molding cavity 22 along with the branch pipes of the injection molding pipe 23 from two sides, injection molding is carried out under the cooperation of the molding cavity 22 and the molding die 32, and the redundant liquid overflows and is recovered from the branch pipes of the overflow rubber pipe 24 above;
Step three, cooling after injection molding is finished, respectively connecting the water inlet pipe 25 and the water outlet pipe 26 with the water pipes, opening the valve, enabling cooling water to enter the side cooling cavity 42 through the water inlet cavity 46, and then entering the lower cooling cavity 41 through the side cooling cavity 42, wherein the mixing guide plates 411 are distributed in a staggered manner to enable water flow to be mixed more uniformly, and enabling the forming cavity 22 to be cooled uniformly;
fourth, after demoulding, the valve of the water outlet pipe 26 is closed after water is cooled circularly for a period of time, the movable mould 3 is disassembled, the ejection biting plate 442 is forced to be lifted under the elastic pushing of the ejection elastic sheet 4413 to drive the extrusion plug 441 to move upwards, at the moment, the connecting pipe sealing plug 45 is opened, water enters the water pressure ejection pipe 43 through the connecting pipe 431 to enable the water pressure inside the water pressure ejection pipe 43 to rise, the sealing ejection diaphragm 432 is ejected and expanded to enable the movable short rod 434 to rise, the ejection needle 4341 ejects the workpiece inside the forming cavity 22, after demoulding is completed, the valve of the water inlet pipe 25 is closed, the valve of the water outlet pipe 26 is opened, a part of water is discharged to enable the water pressure to be reduced, at the moment, the return spring 4331 rebounds to drive the movable short rod 434 to reset,
And fifthly, installing the movable mould 3 again, ejecting the upper end of the biting plate 442 to be pressed by the movable mould 3, enabling the extrusion plug 441 to be clamped into the switch box 44 again, and at the moment, re-closing the connecting pipe sealing plug 45, and repeating the step one.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1.一种便于脱模的注塑模具，包括模具底座（1），其特征在于：所述模具底座（1）的上表面固定安装有定模具（2），所述定模具（2）的上方设置有动模具（3），所述定模具（2）的内部上方设置有成型腔（22），所述定模具（2）的内部下方设置有冷却组件（4）；所述冷却组件（4）包括下冷却腔（41），所述下冷却腔（41）的内部设置有混合导流板（411），所述混合导流板（411）交错分布，所述下冷却腔（41）的两侧对称设置侧冷却腔（42），所述侧冷却腔（42）的下方与下冷却腔（41）的下方贯通，所述下冷却腔（41）的内部两侧对称分布有水压顶出管（43），所述侧冷却腔（42）的内部下方固定安装有开关盒（44），所述水压顶出管（43）靠近开关盒（44）的一侧内壁固定安装有连接管（431），所述连接管（431）贯穿开关盒（44）的侧壁，所述开关盒（44）的内侧表面铰接安装有与连接管（431）相适配的连接管密封塞（45），所述水压顶出管（43）的内部固定安装有密封顶出隔膜（432），所述水压顶出管（43）的内部上方固定安装有密封圈（433），所述密封圈（433）的中部滑动安装有活动短杆（434），所述密封圈（433）的下表面固定安装有复位弹簧（4331），所述复位弹簧（4331）的下端与活动短杆（434）的底部上表面固定连接，所述活动短杆（434）的顶部固定安装有顶出针（4341），所述顶出针（4341）的顶部贯穿成型腔（22）的底部，所述开关盒（44）的内部活动安装有挤压栓塞（441），所述挤压栓塞（441）的侧表面与连接管密封塞（45）的侧表面相接触，所述挤压栓塞（441）的另一侧内壁设置有流水槽（4411），所述流水槽（4411）的上方设置有封堵块（4412），所述封堵块（4412）的上表面固定安装有顶出弹片（4413）。1. An injection mold for easy demolding, comprising a mold base (1), characterized in that: a fixed mold (2) is fixedly mounted on the upper surface of the mold base (1), a movable mold (3) is disposed above the fixed mold (2), a molding cavity (22) is disposed above the interior of the fixed mold (2), and a cooling assembly (4) is disposed below the interior of the fixed mold (2); the cooling assembly (4) includes a lower cooling cavity (41), and a mixing guide plate (411) is disposed inside the lower cooling cavity (41), the mixing guide plates (411) being staggered, the lower... Side cooling chambers (42) are symmetrically arranged on both sides of the cooling chamber (41). The lower part of the side cooling chamber (42) is connected to the lower part of the lower cooling chamber (41). Water pressure ejection pipes (43) are symmetrically distributed on both sides inside the lower cooling chamber (41). A switch box (44) is fixedly installed inside the lower part of the side cooling chamber (42). A connecting pipe (431) is fixedly installed on the inner wall of the water pressure ejection pipe (43) near the switch box (44). The connecting pipe (431) penetrates the side wall of the switch box (44). A hinged connection is installed on the inner surface of the switch box (44) with... A connecting pipe sealing plug (45) is adapted to the connecting pipe (431). A sealing ejection diaphragm (432) is fixedly installed inside the water pressure ejection pipe (43). A sealing ring (433) is fixedly installed on the upper part of the inside of the water pressure ejection pipe (43). A movable short rod (434) is slidably installed in the middle of the sealing ring (433). A return spring (4331) is fixedly installed on the lower surface of the sealing ring (433). The lower end of the return spring (4331) is fixedly connected to the bottom upper surface of the movable short rod (434). The top of the movable short rod (434) An ejector pin (4341) is fixedly installed in the part, and the top of the ejector pin (4341) penetrates the bottom of the molding cavity (22). A compression plug (441) is movably installed inside the switch box (44). The side surface of the compression plug (441) is in contact with the side surface of the connecting pipe sealing plug (45). A water channel (4411) is provided on the other inner wall of the compression plug (441). A sealing block (4412) is provided above the water channel (4411). An ejector spring (4413) is fixedly installed on the upper surface of the sealing block (4412). 2.根据权利要求1所述的一种便于脱模的注塑模具，其特征在于：所述动模具（3）的下表面固定安装有成型模具（32），所述成型模具（32）的位置与成型腔（22）的位置适配，所述动模具（3）的下表面四周对称固定安装有导向柱（31），所述定模具（2）的内壁四周设置有与导向柱（31）适配的导向孔（21），所述定模具（2）的内壁两侧对称设置有注塑管（23），所述定模具（2）的内壁中部设置有溢胶管（24），所述动模具（3）的内壁开设有与注塑管（23）、溢胶管（24）相适配的安装孔。2. An injection mold for easy demolding according to claim 1, characterized in that: a molding mold (32) is fixedly installed on the lower surface of the moving mold (3), the position of the molding mold (32) is adapted to the position of the molding cavity (22), guide pillars (31) are symmetrically fixedly installed around the lower surface of the moving mold (3), guide holes (21) adapted to the guide pillars (31) are provided around the inner wall of the fixed mold (2), injection tubes (23) are symmetrically arranged on both sides of the inner wall of the fixed mold (2), an overflow tube (24) is provided in the middle of the inner wall of the fixed mold (2), and mounting holes adapted to the injection tubes (23) and the overflow tubes (24) are opened on the inner wall of the moving mold (3). 3.根据权利要求1所述的一种便于脱模的注塑模具，其特征在于：所述定模具（2）的一侧内壁上方固定安装有进水管（25），所述定模具（2）的另一侧内壁下方固定安装有出水管（26），所述成型腔（22）的两侧对称设置有短密封压条（27）。3. An injection mold for easy demolding according to claim 1, characterized in that: a water inlet pipe (25) is fixedly installed on the upper part of one side of the inner wall of the fixed mold (2), a water outlet pipe (26) is fixedly installed on the lower part of the other side of the inner wall of the fixed mold (2), and short sealing strips (27) are symmetrically arranged on both sides of the molding cavity (22). 4.根据权利要求1所述的一种便于脱模的注塑模具，其特征在于：所述定模具（2）靠近进水管（25）的一侧内壁设置有进水腔（46），所述定模具（2）靠近出水管（26）的一侧内壁设置有出水腔（47），所述进水腔（46）、出水腔（47）均与侧冷却腔（42）贯通。4. An injection mold for easy demolding according to claim 1, characterized in that: the inner wall of the fixed mold (2) near the water inlet pipe (25) is provided with a water inlet cavity (46), the inner wall of the fixed mold (2) near the water outlet pipe (26) is provided with a water outlet cavity (47), and the water inlet cavity (46) and the water outlet cavity (47) are both connected to the side cooling cavity (42). 5.根据权利要求1所述的一种便于脱模的注塑模具，其特征在于：所述封堵块（4412）固定安装在侧冷却腔（42）的表面上，所述挤压栓塞（441）的上表面固定安装有顶出咬合板（442），所述顶出弹片（4413）的上端与顶出咬合板（442）的下表面固定连接。5. An injection mold for easy demolding according to claim 1, characterized in that: the sealing block (4412) is fixedly installed on the surface of the side cooling cavity (42), the upper surface of the extrusion plug (441) is fixedly installed with an ejector bite plate (442), and the upper end of the ejector spring (4413) is fixedly connected to the lower surface of the ejector bite plate (442). 6.根据权利要求2所述的一种便于脱模的注塑模具，其特征在于：所述成型模具（32）的两侧对称铰接安装有上咬合板（321），所述上咬合板（321）的外侧滑动安装有长密封压条（322），所述长密封压条（322）的上方固定安装有弹片（323）。6. An injection mold for easy demolding according to claim 2, characterized in that: upper engagement plates (321) are symmetrically hinged on both sides of the molding mold (32), a long sealing strip (322) is slidably installed on the outer side of the upper engagement plate (321), and a spring piece (323) is fixedly installed above the long sealing strip (322). 7.根据权利要求6所述的一种便于脱模的注塑模具，其特征在于：所述动模具（3）的下表面开设有与上咬合板（321）、长密封压条（322）相适配的活动槽，所述弹片（323）的上端与活动槽的表面固定连接。7. An injection mold that is easy to demold according to claim 6, characterized in that: the lower surface of the moving mold (3) is provided with a movable groove that is adapted to the upper biting plate (321) and the long sealing strip (322), and the upper end of the spring piece (323) is fixedly connected to the surface of the movable groove.
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