CN216373246U

CN216373246U - Precise injection mold

Info

Publication number: CN216373246U
Application number: CN202123067529.XU
Authority: CN
Inventors: 胡军强
Original assignee: Huizhou Guangda Precision Die Co ltd
Current assignee: Huizhou Guangda Precision Die Co ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-04-26
Anticipated expiration: 2031-12-08

Abstract

The utility model belongs to the technical field of injection molds, and particularly relates to a precise injection mold which comprises an assembly box, wherein a closed door is installed on one side of the assembly box, an assembly groove communicated with the interior of the assembly box is formed in the upper end of the assembly box, a lower mold is fixedly installed in the assembly box, the upper end of the lower mold extends out of the assembly box, the assembly box is provided with openings corresponding to a plurality of heat dissipation holes in a one-to-one manner, a first air cylinder is installed on the bottom side of the interior of the assembly box, a water storage groove is formed in the upper end of a water storage platform, four uniformly distributed support columns are installed at the upper end of the assembly box, an upper mold matched with the lower mold is fixedly installed by extending out of an installation plate at the telescopic end of a second air cylinder, a pouring port is formed in the upper mold, a second stabilizing component is installed between the upper mold and the lower mold, and a controller is installed on the front side of the assembly box; the utility model has simple structure and reasonable design, and can solve the problem of slow material cooling speed during demoulding.

Description

Precise injection mold

Technical Field

The utility model belongs to the technical field of injection molds, and particularly relates to a precise injection mold.

Background

A precision injection mold is a device in which an injection material is injected into a metal mold to obtain a product having a certain shape. In fact, in order to control the temperature of the mold, there are also devices such as cooling holes for passing a refrigerant, heaters, and the like. The material which becomes melt enters the main runner, passes through the sub-runners and the sprue and is injected into the die cavity. After the cooling stage, the mold is opened, and the ejector rod is ejected out by the ejector device on the forming machine to push out the product.

When an existing precise injection mold is used for demolding, the production speed is easily influenced due to the cooling speed of materials, and the forming quality can be directly influenced under severe conditions.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is: aim at providing a precision injection mold, can control the second cylinder through the controller and descend to the mould agrees with the bed die in the drive, carry out the work of moulding plastics, and after finishing moulding plastics, can drive the water storage platform through first cylinder and rise, will assemble box parcel, thereby water can get into through the opening enter into among the louvre, thereby realize the quick cooling to the bed die, thereby can accelerate the cooling rate of product, thereby effectual improvement staff's work efficiency.

In order to achieve the technical purpose, the technical scheme adopted by the utility model is as follows:

a precise injection mold comprises an assembly box, wherein a closed door is arranged on one side of the assembly box, an assembly groove communicated with the interior of the assembly box is formed in the upper end of the assembly box, an assembly box matched with the assembly groove is arranged in the assembly box, a lower die is fixedly arranged in the assembly box, the upper end of the lower die extends out of the assembly box, the lower side of the lower die is provided with a plurality of heat dissipation holes which penetrate through the left end and the right end of the lower die, the assembly box is provided with openings corresponding to the positions of the heat dissipation holes one by one, the bottom side in the assembly box is provided with a first cylinder, the telescopic end of the first cylinder is fixedly provided with a water storage table corresponding to the position of the assembly box, the upper end of the water storage table is provided with a water storage tank, an ejection mechanism is arranged between the water storage tank and the lower die, and a first stabilizing assembly matched with the water storage table is arranged in the assembly box;

four evenly distributed's support column, four are installed to the assembly box upper end the support column upper end is equipped with the mounting panel jointly, the second cylinder is installed to the mounting panel upper end, the flexible end of second cylinder stretch out mounting panel fixed mounting have with lower mould assorted last mould, it is equipped with the sprue gate to go up the mould upper end, it stabilizes the subassembly to go up to install the second between mould and the lower mould, the controller is installed to the assembly box front side, first cylinder and second cylinder all with controller electric connection.

The ejection mechanism comprises an ejector rod, a circular groove is formed in the bottom of a cavity of the lower die, a circular hole penetrating through the lower die is formed in the lower end of the circular groove, the ejector rod is assembled in the circular hole in a vertically sliding mode, a circular disc matched with the circular groove is fixedly mounted at the upper end of the ejector rod, an assembling box is extended out of the lower end of the ejector rod, the ejector rod is connected with the assembling box in a sliding mode, a sleeve matched with the position of the ejector rod is mounted at the bottom of the water storage tank, a supporting rod is assembled inside the sleeve in a sliding mode, a spring is mounted at the bottom of the sleeve, and the upper end of the spring is fixedly connected with the lower end of the supporting rod.

The first stabilizing assembly comprises two connecting rods, the two connecting rods are vertically fixed on the left side and the right side inside the assembling box respectively, and the water storage platform is connected with the two connecting rods in a sliding mode.

The second stabilizing assembly comprises two guide posts which are vertically and fixedly arranged on the left side and the right side of the upper end of the upper die respectively, the upper ends of the guide posts are fixedly connected with the mounting plate respectively, and the upper die is connected with the two guide posts in a sliding manner.

The assembly box is provided with a plurality of air holes.

The water storage table is characterized in that a water drainage hose is installed at the bottom of the water storage table, a drain valve is installed on one side of the assembly box, and one end of the water drainage hose is connected with the drain valve.

When the cooling device is used, the controller can be used for controlling the second air cylinder to descend so as to drive the upper die to be matched with the lower die to perform injection molding, and after the injection molding is finished, the first air cylinder can be used for driving the water storage platform to ascend so as to wrap the assembly box, so that water can enter the heat dissipation holes through the openings, the lower die is rapidly cooled, the cooling speed of a product can be increased, and the working efficiency of workers is effectively improved.

Drawings

The utility model is further illustrated by the non-limiting examples given in the accompanying drawings;

FIG. 1 is a first schematic structural diagram of a precision injection mold according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a second embodiment of a precision injection mold of the present invention;

FIG. 3 is a cross-sectional view of a first partial structural view of the present invention;

FIG. 4 is a schematic cross-sectional view of the lower mold of the present invention;

FIG. 5 is a schematic view of the structure of the lower mold of the present invention.

The main element symbols are as follows:

the assembling box comprises an assembling box 1, a closing door 111, an assembling groove 11, an assembling box 12, a lower die 13, a heat dissipation hole 14, an opening 15, a first air cylinder 16, a water storage table 17, a water storage groove 18, a supporting column 181, an assembling plate 19, an upper die 20, a second air cylinder 2011, a pouring gate 21, a controller 22, an ejector rod 23, a circular groove 24, a circular hole 25, an ejector rod 26, a disc 27, a sleeve 28, a supporting rod 29, a spring 30, a connecting rod 31, a guide column 32, a vent hole 33, a drainage hose 34 and a drainage valve 35.

Detailed Description

In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.

As shown in fig. 1-5, the precise injection mold of the utility model comprises an assembly box 1, a closed door 111 is installed on one side of the assembly box 1, an assembly groove 11 communicated with the inside of the assembly box 1 is formed at the upper end of the assembly box 1, an assembly box 12 matched with the assembly groove 11 is installed inside the assembly box 1, a lower mold 13 is fixedly installed inside the assembly box 12, the upper end of the lower mold 13 extends out of the assembly box 1, a plurality of heat dissipation holes 14 penetrating through the left end and the right end of the lower mold 13 are formed at the lower side of the lower mold 13, openings 15 corresponding to the positions of the plurality of heat dissipation holes 14 one by one are formed in the assembly box 12, a first air cylinder 16 is installed at the bottom side inside the assembly box 1, a water storage platform 17 corresponding to the position of the assembly box 12 is fixedly installed at the telescopic end of the first air cylinder 16, a water storage tank 18 is formed at the upper end of the water storage platform 17, an ejection mechanism is installed between the water storage tank 18 and the lower mold 13, and a first stabilizing component matched with the water storage platform 17 is installed inside the assembly box 1;

four evenly distributed's support column 181 are installed to 1 upper end of assembly box, four support column 181 upper ends are equipped with mounting panel 19 jointly, second cylinder 201 is installed to mounting panel 19 upper end, the flexible end of second cylinder 201 stretches out mounting panel 19 fixed mounting have with lower mould 13 assorted last mould 20, it is equipped with sprue gate 21 to go up the mould 20 upper end, it stabilizes the subassembly to install the second between mould 20 and the lower mould 13, controller 22 is installed to 1 front side of assembly box, first cylinder 16 all with controller 22 electric connection with second cylinder 201.

When an injection mold is needed for injection molding, the closed door 111 is firstly opened to add water into the water storage tank 18, the second cylinder 2011 is started through the controller 22, the telescopic end of the second cylinder 2011 descends to drive the upper mold 20 to descend, the second stabilizing assembly can increase the stability of the descending upper mold 20 so that the upper mold 20 is more accurate to fit with the lower mold 13, injection molding can be performed through the pouring gate 21 after the upper mold 20 and the lower mold 13 are completely fitted, after the injection molding is completed, because the temperature of an injection molded product which is just subjected to injection molding is higher, a part of plastic products can be possibly adhered in a cavity of the lower mold 13, the injection molded product needs to be taken out after cooling, when the cooling speed of the injection molded product needs to be accelerated, the telescopic end of the first cylinder 16 can be controlled to ascend through the controller 22, and the telescopic end of the first cylinder 16 drives the water storage table 17 to ascend, the water storage table 17 continuously rises until the upper end of the water storage table 17 abuts against the inner upper end of the assembly box 1, so that the rising of the telescopic end of the first cylinder 16 can be stopped, the first stabilizing component can increase the stability of the water storage table 17 when the water storage table 17 rises and falls in the process, the water storage table 17 is prevented from shaking when the water storage table 17 rises and falls, after the water storage table 17 abuts against the assembly box 1, the water storage tank 18 can completely wrap the part of the assembly box 12, which is positioned in the assembly box 1, and at the moment, water in the water storage tank 18 enters the heat dissipation holes 14 of the assembly box 12 through the opening 15 of the assembly box 12 to rapidly cool the lower die 13;

after the cooling is finished, the telescopic rod of the second cylinder 2011 retracts through the controller 22, so that the upper mold 20 is driven to be away from the lower mold 13, the pressure on the lower mold 13 disappears because the upper mold 20 is away from the lower mold 13, at the moment, the ejection mechanism starts to operate, and an injection-molded product is ejected out of a cavity of the lower mold 13, so that a worker can conveniently take the injection-molded product, and because the injection-molded product does not need to be cooled when just beginning to perform injection molding, the controller 22 can control the first cylinder 16 to retract, so that the water storage table 17 is away from the assembly box 12, and one-time injection molding work is completed;

when the cooling device is used, the controller 22 can be used for controlling the second air cylinder 2011 to descend so as to drive the upper die 20 to be matched with the lower die 13 for injection molding, and after the injection molding is finished, the first air cylinder 16 can be used for driving the water storage table 17 to ascend so as to wrap the assembly box 12, so that water can enter the heat dissipation holes 14 through the openings 15, the lower die 13 can be rapidly cooled, the cooling speed of a product can be increased, and the working efficiency of workers can be effectively improved.

The ejection mechanism comprises an ejector rod 23, the bottom of a cavity of the lower die 13 is provided with a circular groove 24, the lower end of the circular groove 24 is provided with a circular hole 25 penetrating through the lower die 13, the ejector rod 26 is assembled in the circular hole 25 in a vertical sliding manner, the upper end of the ejector rod 26 is fixedly provided with a disc 27 matched with the circular groove 24, the lower end of the ejector rod 26 extends out of the assembly box 12, the ejector rod 26 is connected with the assembly box 12 in a sliding manner, the bottom of the water storage tank 18 is provided with a sleeve 28 matched with the ejector rod 26 in position, a support rod 29 is assembled in the sleeve 28 in a sliding manner, the bottom of the sleeve 28 is provided with a spring 30, and the upper end of the spring 30 is fixedly connected with the lower end of the support rod 29; thus, in the original state, due to gravity, the ejector rod 26 will descend in the circular hole 25, and because the disc 27 is matched with the circular groove 24, the disc 27 will be fit in the circular groove 24, a worker can press the disc 27 before injection, so that the upper end of the disc 27 is flush with the upper end of the circular groove 24, and the lower end of the ejector rod 26 will extend out of the assembly box 12, while during injection, the lower die 13 will fit in the upper die 20, the upper die 20 will press the injection product, after primary cooling, when trying to accelerate cooling, the water storage table 17 will ascend under the action of the first cylinder 16, when ascending to the working height, the support rod 29 will contact the lower end of the ejector rod 26, and because the pressure of the upper die 20 is still, the ejector rod 26 will not ascend, so as to press the support rod 29, the support rod 29 will press the spring 30, and when cooling is finished, the upper die 20 ascends, go up mould 20 and disappear to injection moulding product's pressure to the pressure of branch 29 also disappears, spring 30 from the new jack-up with branch 29 that stretches, branch 29 just can jack-up ejector pin 26, and ejector pin 26 jacks up disc 27, and disc 27 can jack-up injection moulding product, has just so accomplished drawing of patterns work, and need not the staff and carry out extra work, and easy operation is convenient.

The first stabilizing assembly comprises two connecting rods 31, the two connecting rods 31 are vertically fixed on the left side and the right side inside the assembly box 1 respectively, and the water storage table 17 is connected with the two connecting rods 31 in a sliding manner; just so can be when water storage platform 17 rises or descends, two connecting rods 31 can be at this in-process, provide stability, appear rocking when avoiding water storage platform 17 to rise and descend.

The second stabilizing assembly comprises two guide posts 32, the two guide posts 32 are vertically and fixedly arranged on the left side and the right side of the upper end of the upper die 20 respectively, the upper ends of the two guide posts 32 are fixedly connected with the mounting plate 19 respectively, and the upper die 20 is connected with the two guide posts 32 in a sliding manner; thus, when the upper mold 20 is lifted, the guide posts 32 provide stability, and stability and accuracy of fitting the lower mold 13 of the upper mold 20 are improved.

The assembling box 12 is provided with a plurality of air holes 33; after the assembled box 12 is covered by the water storage table 17, water in the water storage tank 18 enters the assembled box 12 through the air holes 33 and covers the lower surface of the lower die 13, and the cooling speed of the lower die 13 is increased.

A drainage hose 34 is arranged at the bottom of the water storage platform 17, a drainage valve 35 is arranged on one side of the assembly box 1, and one end of the drainage hose 34 is connected with the drainage valve 35; when the water in the water storage tank 18 needs to be drained, the water in the water storage tank 18 can be drained to the outside of the assembly box 1 through the drain hose 34 only by opening the drain valve 35, and the operation is simple and convenient.

The foregoing embodiments are merely illustrative of the principles of the present invention and its efficacy, and are not to be construed as limiting the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a precision injection mold, includes the assembly box, closed door, its characterized in that are installed to assembly box one side: the assembly box is characterized in that an assembly groove communicated with the interior of the assembly box is formed in the upper end of the assembly box, an assembly box matched with the assembly groove is arranged in the assembly box, a lower die is fixedly arranged in the assembly box, the upper end of the lower die extends out of the assembly box, a plurality of heat dissipation holes penetrating through the left end and the right end of the lower die are formed in the lower side of the lower die, openings corresponding to the positions of the heat dissipation holes in a one-to-one mode are formed in the assembly box, a first air cylinder is arranged at the bottom side of the interior of the assembly box, a water storage platform corresponding to the position of the assembly box is fixedly arranged at the telescopic end of the first air cylinder, a water storage groove is formed in the upper end of the water storage platform, an ejection mechanism is arranged between the water storage groove and the lower die, and a first stabilizing component matched with the water storage platform is arranged in the assembly box;

2. A precision injection mould according to claim 1, characterised in that: the ejection mechanism comprises an ejector rod, a circular groove is formed in the bottom of a cavity of the lower die, a circular hole penetrating through the lower die is formed in the lower end of the circular groove, the ejector rod is assembled in the circular hole in a vertically sliding mode, a circular disc matched with the circular groove is fixedly mounted at the upper end of the ejector rod, an assembling box is extended out of the lower end of the ejector rod, the ejector rod is connected with the assembling box in a sliding mode, a sleeve matched with the position of the ejector rod is mounted at the bottom of the water storage tank, a supporting rod is assembled inside the sleeve in a sliding mode, a spring is mounted at the bottom of the sleeve, and the upper end of the spring is fixedly connected with the lower end of the supporting rod.

3. A precision injection mould according to claim 1, characterised in that: the first stabilizing assembly comprises two connecting rods, the two connecting rods are vertically fixed on the left side and the right side inside the assembling box respectively, and the water storage platform is connected with the two connecting rods in a sliding mode.

4. A precision injection mould according to claim 1, characterised in that: the second stabilizing assembly comprises two guide posts which are vertically and fixedly arranged on the left side and the right side of the upper end of the upper die respectively, the upper ends of the guide posts are fixedly connected with the mounting plate respectively, and the upper die is connected with the two guide posts in a sliding manner.

5. A precision injection mould according to claim 1, characterised in that: the assembly box is provided with a plurality of air holes.

6. A precision injection mould according to claim 1, characterised in that: the water storage table is characterized in that a water drainage hose is installed at the bottom of the water storage table, a drain valve is installed on one side of the assembly box, and one end of the water drainage hose is connected with the drain valve.