CN215151496U

CN215151496U - But injection mold of fast demoulding

Info

Publication number: CN215151496U
Application number: CN202121550082.9U
Authority: CN
Inventors: 李大国; 韩晶
Original assignee: Shenzhen Jiegao Precision Mould Co ltd
Current assignee: Shenzhen Jiegao Precision Mould Co ltd
Priority date: 2021-07-08
Filing date: 2021-07-08
Publication date: 2021-12-14
Anticipated expiration: 2031-07-08

Abstract

The utility model discloses a but injection mold of fast demoulding, including die holder and upper die base, be equipped with the guide pillar between die holder and the upper die base, the ventilation hole has all been seted up to the die holder both sides, die holder one side fixedly connected with support, and a plurality of fan mechanism of fixedly connected with on one side of the support, the inside rectangle through-hole of having seted up of die holder, the die holder is at rectangle through-hole fixedly connected with water-cooling board, a plurality of cold water pipe of water-cooling board one side fixedly connected with, cold water pipe one end and outside cold water machine fixed connection, a plurality of cold water pipe one end difference fixedly connected with check valve, the inside coolant liquid that is equipped with of water-cooling board, and the die holder below is equipped with the movable plate, and movable plate bottom end fixedly connected with ejector pin, and ejector pin and outside ejection mechanism fixed connection, the equal fixedly connected with thimble in movable plate top both sides. The utility model discloses a set up cold water pipe and ventilation hole to the bed die of device and dispel the heat and cool off with higher speed to the drawing of patterns efficiency of device has been improved.

Description

But injection mold of fast demoulding

Technical Field

The utility model relates to a but quick drawing of patterns's injection mold technical field especially relates to a but quick drawing of patterns's injection mold.

Background

The injection mold is a tool for producing plastic products and also a tool for endowing the plastic products with complete structures and accurate dimensions, and the injection molding is a processing method used for batch production of parts with complex shapes, in particular to a method for injecting heated and melted plastics into a mold cavity from an injection molding machine at high pressure and obtaining a formed product after cooling and solidification.

Through retrieval, the existing injection mold needs to be cooled before demolding, and the existing injection mold is low in cooling efficiency, so that the demolding work efficiency is influenced, and the work efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an injection mold capable of rapidly demoulding.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an injection mold capable of realizing rapid demolding comprises a lower mold base and an upper mold base, wherein a guide pillar is arranged between the lower mold base and the upper mold base, ventilation holes are formed in two sides of the lower mold base, a support is fixedly connected to one side of the lower mold base, a plurality of fan mechanisms are fixedly connected to one side of the support, a rectangular through hole is formed in the lower mold base, a water cooling plate is fixedly connected to the rectangular through hole of the lower mold base, a plurality of cold water pipes are fixedly connected to one side of the water cooling plate, one ends of the cold water pipes are fixedly connected with an external water cooler, one ends of the cold water pipes are respectively and fixedly connected with a one-way valve, cooling liquid is arranged in the water cooling plate, a movable plate is arranged below the lower mold base, an ejector rod is fixedly connected to the bottom of the movable plate and fixedly connected with an external ejection mechanism, ejector pins are fixedly connected to two sides of the top end of the movable plate, and the top ends of the ejector pins penetrate through the water cooling plate, the top end of the ejector pin is fixedly connected with an ejector block in the lower die base.

Furthermore, both sides of the bottom end of the lower die base are fixedly connected with pressure sensors.

Further, cavities are formed in the movable plate, the ejector block and the ejector pin, and air outlet holes are formed in two sides of the ejector block.

Furthermore, the two sides of the bottom end of the movable plate are fixedly connected with hoses, and one end of each hose is fixedly connected with the output end of an external air blower.

Further, the pressure sensor and the fan mechanism are both electrically connected with an external power supply.

Furthermore, rectangular grooves are formed in two sides of the lower die base, and a plurality of rectangular radiating grooves are formed in the rectangular grooves of the lower die base.

The utility model has the advantages that:

1. through setting up the water-cooling board, the thimble, the kicking block, the die holder, upper die base and ventilation hole, when needing the device to cool off the drawing of patterns, at first the cold water pipe is opened, because the check valve opening direction of a plurality of cold water pipe one end is different, so the inside water of water-cooling board forms cold water circulation through a plurality of cold water pipe and cold water machine, the coolant liquid takes out the inside heat of die holder in the water-cooling board, and carry out the cold water operation in the cold water machine, open fan mechanism simultaneously, fan mechanism accelerates the ventilation hole and the outside air of die holder both sides and carries out the heat transfer, thereby further accelerated the cooling efficiency of device, thereby the drawing of patterns efficiency of device has been improved.

2. Through setting up the venthole, the hose, pressure sensor and movable plate, after the mould cooling finishes, open outside ejection mechanism, ejection mechanism drives the ejector pin and removes, the ejector pin drives the movable plate and removes, when the movable plate removes to pressure sensor department and extrudees, the air-blower is opened after pressure sensor response pressure, the air-blower is blown outside air current into the movable plate and is finally followed the both sides blowout of kicking block through the ejector pin, the air current is after the ejector pin is ejecting a part with the material, continue to blow into the gap between material and the mould and clear up, when having avoided ejecting the material, probably because outside dust gets into in the gap and leads to the material to be ejecting and receive the damage, the air current both sides are spout simultaneously, utilize inside and outside atmospheric pressure difference to evenly exert force to the mould bottom, improved the protective capacities to the mould.

3. Through the rectangular grooves and the rectangular radiating grooves, when the device is cooled, the rectangular grooves and the rectangular radiating grooves on two sides of the lower die holder further increase the heat exchange efficiency of the device and outside air, and therefore the heat dissipation efficiency of the device is improved.

Drawings

FIG. 1 is a front view of an injection mold capable of rapid demolding as set forth in example 1;

FIG. 2 is a front view of a rapidly demoldable injection mold as set forth in example 1;

fig. 3 is a front view of a rectangular heat sink of an injection mold capable of being rapidly demolded according to embodiment 2.

In the figure: 1-lower die holder, 2-guide post, 3-upper die holder, 4-bracket, 5-water cooling plate, 6-cold water pipe, 7-one-way valve, 8-fan mechanism, 9-vent hole, 10-moving plate, 11-top block, 12-top pin, 13-cooling liquid, 14-hose, 15-top rod, 16-air outlet, 17-pressure sensor, 18-rectangular groove and 19-rectangular radiating groove.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Example 1

Referring to fig. 1-2, an injection mold capable of being rapidly demolded comprises a lower die holder 1 and an upper die holder 3, wherein a guide post 2 is arranged between the lower die holder 1 and the upper die holder 3, vent holes 9 are respectively arranged at two sides of the lower die holder 1, a bracket 4 is bonded at one side of the lower die holder 1, a plurality of fan mechanisms 8 are bonded at one side of the bracket 4, a rectangular through hole is arranged inside the lower die holder 1, a water-cooling plate 5 is bonded at the rectangular through hole of the lower die holder 1, a plurality of cold water pipes 6 are bonded at one side of the water-cooling plate 5, one ends of the cold water pipes 6 are bonded with an external water cooler, one ends of the plurality of cold water pipes 6 are respectively bonded with a check valve 7, cooling liquid 13 is arranged inside the water-cooling plate 5, a movable plate 10 is arranged below the lower die holder 1, a movable plate 10 is bonded with a push rod 15 at the bottom end of the movable plate 15, the push rod is bonded with the external push-out mechanism, ejector pins 12 are bonded at two sides at the top end of the movable plate 10, and the top end of the push rod 12 penetrates through the water-cooling plate 5, ejector pin 12 top department bonding in the inside of die holder 1 has kicking block 11, when needing the device to cool off the drawing of patterns, at first cold water pipe 6 opens, because the check valve of the 6 one end of a plurality of cold water pipe opens the direction different, so the inside water of water-cooling board 5 forms cold water circulation through a plurality of cold water pipe 6 and cold water machine, coolant liquid 13 takes out the inside heat of die holder 1 in water-cooling board 5, and carry out cold water operation in the cold water machine, open fan mechanism 8 simultaneously, fan mechanism 8 accelerates the ventilation hole and the outside air heat transfer of die holder 1 both sides, thereby further accelerated the cooling efficiency of device, thereby the drawing of patterns efficiency of device has been improved.

Wherein, pressure sensors 17 are bonded on both sides of the bottom end of the lower die holder 1, a movable plate 10, a cavity is formed in each of the top block 12 and the thimble 12, air outlets 16 are formed in both sides of the top block 12, hoses 14 are bonded on both sides of the bottom end of the movable plate 10, one end of each hose 14 is bonded with the output end of an external air blower, the pressure sensors 17 and the fan mechanism 8 are electrically connected with an external power supply, when the die is cooled, the external ejection mechanism is opened, the ejection mechanism drives the ejector rods 15 to move, the ejector rods 15 drive the movable plate 10 to move, when the movable plate 10 moves to the pressure sensors 17 and is extruded, the air blower is opened after the pressure sensors 17 sense the pressure, the air blower blows external air flow into the movable plate 10 and finally sprays out from both sides of the top block 11 through the ejector rods 15, the air flow continues to blow into gaps between the material and the die and clean up after the ejector rods 15 push out a part of the material, the material ejection device has the advantages that the damage to the material during ejection due to the fact that external dust enters the gap is avoided, meanwhile, the two sides of the air flow are ejected out, the bottom end of the mold is uniformly applied with force by utilizing the difference between the internal pressure and the external pressure, and the protection capability of the mold is improved.

The working principle is as follows: when the device is needed to be cooled and demoulded, the cold water pipe 6 is opened firstly, the opening directions of the check valves at one ends of the cold water pipes 6 are different, so that cold water circulation is formed between the cold water pipes 6 and the water chiller by the water inside the water cooling plate 5, the heat inside the lower die holder 1 is taken out by the cooling liquid 13 in the water cooling plate 5, the cold water operation is carried out in the water chiller, the fan mechanism 8 is opened simultaneously, the fan mechanism 8 accelerates the heat exchange between the ventilation holes at two sides of the lower die holder 1 and the outside air, the cooling efficiency of the device is further accelerated, and the demoulding efficiency of the device is improved.

After the mold is cooled, the external ejection mechanism is started, the ejection mechanism drives the ejector rod 15 to move, the ejector rod 15 drives the movable plate 10 to move, when the movable plate 10 moves to the pressure sensor 17 and is extruded, the pressure sensor 17 senses pressure and then starts the air blower, the air blower blows external air flow into the movable plate 10 and finally ejects the air flow from two sides of the ejector block 11 through the ejector rod 15, after the air flow ejects a part of the material out through the ejector rod 15, the air flow continues to blow into a gap between the material and the mold and is cleaned, the problem that the material is damaged during ejection of the material due to the fact that external dust enters the gap is avoided, meanwhile, the air flow is ejected from two sides, the bottom end of the mold is uniformly applied with force by using the difference of internal air pressure and external air pressure, and the protection capability of the mold is improved.

Example 2

Referring to fig. 3, this embodiment compares in embodiment 1, and in order to further improve the heat dissipation efficiency of device, rectangular groove 18 has all been seted up to lower die holder 1 both sides, and a plurality of rectangle radiating groove 19 has been seted up at rectangular groove department to lower die holder 1 of telling, and when the device was cooling down, rectangular groove 18 and the rectangle radiating groove 19 of lower die holder 1 both sides have further increased the heat exchange efficiency of device with the outside air to the heat dissipation efficiency of device has been improved.

When the device is cooled, the rectangular grooves 18 and the rectangular radiating grooves 19 on the two sides of the lower die holder 1 further increase the heat exchange efficiency of the device and the outside air, so that the heat radiating efficiency of the device is improved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. An injection mold capable of realizing rapid demolding comprises a lower mold base (1) and an upper mold base (3), wherein a guide pillar (2) is arranged between the lower mold base (1) and the upper mold base (3), and is characterized in that ventilation holes (9) are formed in the two sides of the lower mold base (1), a support (4) is fixedly connected to one side of the lower mold base (1), a plurality of fan mechanisms (8) are fixedly connected to one side of the support (4), a rectangular through hole is formed in the lower mold base (1), a water cooling plate (5) is fixedly connected to the rectangular through hole of the lower mold base (1), a plurality of cold water pipes (6) are fixedly connected to one side of the water cooling plate (5), one ends of the cold water pipes (6) are fixedly connected with an external cold water machine, one ends of the cold water pipes (6) are respectively and fixedly connected with a one-way valve (7), a cooling liquid (13) is arranged in the water cooling plate (5), the die comprises a lower die holder (1) and is characterized in that a movable plate (10) is arranged below the lower die holder (1), ejector rods (15) are fixedly connected to the bottom end of the movable plate (10), the ejector rods (15) are fixedly connected with an external ejection mechanism, ejector pins (12) are fixedly connected to two sides of the top end of the movable plate (10), a water cooling plate (5) is penetrated through the top end of each ejector pin (12), and ejector blocks (11) are fixedly connected to the top end of each ejector pin (12) in the lower die holder (1).

2. The injection mold capable of being rapidly demolded according to claim 1, wherein the two sides of the bottom end of the lower die holder (1) are fixedly connected with pressure sensors (17).

3. The injection mold capable of being rapidly demolded as claimed in claim 2, wherein the moving plate (10), the top block (11) and the ejector pin (12) are all provided with a cavity therein, and the top block (11) is provided with air outlets (16) at two sides.

4. The injection mold capable of being rapidly demolded as claimed in claim 3, wherein the flexible tubes (14) are fixedly connected to both sides of the bottom end of the moving plate (10), and one end of the flexible tube (14) is fixedly connected to the output end of the external blower.

5. A rapid-release injection mold as claimed in claim 4, wherein the pressure sensor (17) and the fan mechanism (8) are electrically connected to an external power source.

6. The injection mold capable of being rapidly demolded as defined in claim 5, wherein the lower mold base (1) is provided with rectangular grooves (18) on both sides thereof, and the lower mold base (1) is provided with a plurality of rectangular heat dissipation grooves (19) at the rectangular grooves.