CN218256476U

CN218256476U - Anti-leakage injection mold

Info

Publication number: CN218256476U
Application number: CN202222517571.5U
Authority: CN
Inventors: 邓以钦
Original assignee: Dongguan Zhenghong Rubber And Plastic Co ltd
Current assignee: Dongguan Zhenghong Rubber And Plastic Co ltd
Priority date: 2022-09-22
Filing date: 2022-09-22
Publication date: 2023-01-10
Anticipated expiration: 2032-09-22

Abstract

The utility model provides an injection mold of antiseep relates to injection mold technical field, include: the box body is internally provided with an upper die close to the top, and a lower die is arranged below the upper die; and the sealing assembly is arranged between the upper die and the lower die and used for preventing the injection molding liquid in the die from leaking. This kind of mould can carry out the shutoff through multilayer seal structure to the gap between the mould through last mould, bed die and seal assembly, prevents that the mould from appearing the seepage in the use.

Description

Anti-leakage injection mold

Technical Field

The utility model relates to an injection mold technical field specifically is injection mold of antiseep.

Background

An injection mould is a tool for producing injection products, and particularly relates to a formed product which is obtained by injecting heated and melted plastics into a mould cavity from an injection machine and cooling and solidifying the plastics.

Because injection mold is injecting into the highly compressed liquid of moulding plastics of high temperature back, injection mold internal pressure is too big to make partial liquid of moulding plastics probably ooze from between last mould and the bed die under the effect of pressure, influence the quality of moulding plastics, and current injection mold seal structure is mostly the individual layer seal structure of lug and recess between the mould, and leaves the gap between lug and the recess, and sealed effect is not good.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving the shortcoming that exists among the background art, provide the injection mold of antiseep, through last mould, bed die and seal assembly, can carry out the shutoff through multilayer seal structure to the gap between the mould, prevent that the mould from appearing the seepage in the use.

In order to achieve the above object, the utility model provides a following technical scheme, an injection mold of antiseep, include: the device comprises a box body, wherein an upper die is arranged in the box body and close to the top, and a lower die is arranged below the upper die; and the sealing assembly is arranged between the upper die and the lower die and used for preventing the injection molding liquid in the die from leaking.

Further, the seal assembly includes: the sealing groove is arranged on the upper surface of the lower die and is of an annular structure; the sealing ring is fixedly connected with the upper surface of the lower die, and the sealing groove is positioned on the inner side of the sealing ring; the annular groove is formed in the lower surface of the upper die and used with the sealing ring in a matched mode; set up in go up the mould lower surface and be the press groove of loop configuration, press inslot portion be equipped with the supporting sealed piece that uses of seal groove.

Furthermore, a movable plate matched with the pressing groove is arranged in the pressing groove, the lower surface of the movable plate is connected with the sealing block, and a plurality of pressure springs which are distributed in an annular array are arranged between the upper surface of the movable plate and the inner wall of the pressing groove.

Furthermore, the lower mould surface has been seted up and has been moulded plastics the groove, just the groove of moulding plastics is located seal groove inboard, be connected with the pipe of moulding plastics on the upper die, the box top install a plurality of with the electric putter that the upper die is connected.

Further, the inside bottom plate position that is close to of box installs and is used for placing the workstation of bed die, the workstation with be equipped with cooling module between the bed die for accelerate injection molding work piece cooling forming, cooling module includes: the water storage cavity is arranged in the workbench, and a water pump is arranged in the water storage cavity; set up in the inside cooling chamber of lower mould, just the cooling chamber is located the groove below of moulding plastics, the cooling chamber with be connected with the drinking-water pipe between the water pump, the cooling chamber with be connected with the back flow between the retaining chamber.

Furthermore, the cooling cavity is internally provided with a plurality of cooling fins which are horizontally and uniformly distributed, and the top ends of the cooling fins are respectively positioned on two opposite sides and the bottom surface of the injection molding groove inner wall.

Further, the bottom of one side of the box body is connected with a water inlet pipe and a water outlet pipe, the water inlet pipe is located above the water outlet pipe, and the water inlet pipe and the water outlet pipe are communicated with the water storage cavity.

The utility model provides an injection mold of antiseep has following beneficial effect:

the utility model discloses the advantage lies in, through last mould, bed die and seal assembly, can come the gap between shutoff mould and the bed die through multilayer seal structure, prevent to mould plastics liquid at the in-process that injects into, the part liquid of moulding plastics oozes through the gap under the effect of mould internal pressure, influences the quality of moulding plastics, prevents simultaneously that the liquid of moulding plastics of high temperature from oozing the back and contacting with the human body, causes very big injury to the human body.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a cross-sectional view of the overall structure of the present invention.

Fig. 3 is a half sectional view of the lower mold structure of the present invention.

Fig. 4 is a top view of the moving plate structure of the present invention.

Fig. 5 is a schematic view of the structure of the heat sink of the present invention.

Fig. 6 is an enlarged view of the position a of fig. 2 according to the present invention.

In FIGS. 1-6: 1. a box body; 2. a work table; 201. a water storage cavity; 202. a water inlet pipe; 203. a water outlet pipe; 3. a water pump; 301. a water pumping pipe; 4. a lower die; 401. injection molding a groove; 402. a sealing groove; 403. a seal ring; 404. a cooling chamber; 405. a heat sink; 406. a return pipe; 5. an upper die; 501. an electric push rod; 502. injection molding a tube; 503. pressing the groove; 504. a pressure spring; 505. moving the plate; 506. a sealing block; 507. an annular groove.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

The embodiment of the application provides an injection mold of antiseep, and this kind of injection mold of antiseep can realize through last mould, bed die and seal assembly, can carry out the shutoff through multilayer seal structure to the gap between the mould, prevents that the seepage from appearing in the mould in the use. The leakage-proof injection mold will be described in detail below. It should be noted that the following description of the embodiments is not intended to limit the preferred order of the embodiments.

The present application is described in detail below with reference to the attached drawings and the detailed description. Referring to fig. 1-6, the present embodiment provides a leakage-proof injection mold, including: an upper die 5 is arranged in the box body 1 and close to the top of the box body 1, and a lower die 4 is arranged below the upper die 5; and a sealing component arranged between the upper die 5 and the lower die 4 and used for preventing the injection liquid in the die from leaking.

In this embodiment, the anti-leakage injection mold mainly includes a case 1, an upper mold 5, a lower mold 4 and a sealing assembly.

Wherein, the injection mold of antiseep includes through last mould 5, bed die 4 and seal assembly, can come the gap between shutoff mould 5 and the bed die 4 through multilayer seal structure, prevents to mould plastics liquid at the in-process of pouring into, and partial injection moulding liquid oozes through the gap under the effect of mould internal pressure, influences the quality of moulding plastics, prevents simultaneously that the injection moulding liquid of high temperature from oozing the back and contacting with the human body, causes very big injury to the human body.

In some embodiments, the seal assembly comprises: a sealing groove 402 which is arranged on the upper surface of the lower die 4 and is of an annular structure; a seal ring 403 fixedly connected to an upper surface of the lower mold 4, and the seal groove 402 is located inside the seal ring 403; an annular groove 507 which is arranged on the lower surface of the upper die 5 and is matched with the sealing ring 403 for use; the pressing groove 503 is provided on the lower surface of the upper mold 5 and has a ring structure, and the sealing block 506 used in cooperation with the sealing groove 402 is provided inside the pressing groove 503.

In the using process, because the injection liquid with high pressure and high temperature is injected into the mold, the pressure inside the mold rises, and part of the injection liquid is easy to seep out from the gap between the upper mold 5 and the lower mold 4, so that the injection effect is affected, in the process of closing the upper mold 5 and the lower mold 4, the sealing block 506 of the upper mold 5 moves downwards, the sealing block 506 is embedded into the sealing groove 402, the sealing block 506 is tightly attached to the inner wall of the sealing groove 402, the gap between the upper mold 5 and the lower mold 4 is completely sealed by the sealing block 506, so that the injection liquid inside the mold is prevented from leaking, the sealing ring 403 on the lower mold 4 is embedded into the annular groove 507 and tightly attached to the inner wall of the annular groove 507, the sealing effect on the mold is further improved, and the injection liquid is prevented from leaking to the maximum extent.

In some embodiments, a moving plate 505 is disposed inside the pressing groove 503, the lower surface of the moving plate 505 is connected to the sealing block 506, and a plurality of pressure springs 504 are disposed between the upper surface of the moving plate 505 and the inner wall of the pressing groove 503.

When the sealing block 506 is inserted into the sealing groove 402, the upper mold 5 moves downwards continuously, so that the pressure spring 504 is pressed by the moving plate 505 to generate elastic force through elastic deformation, and the generated elastic force acts on the sealing block 506 through the moving plate 505, so that the sealing block 506 can stably abut against the inner wall of the sealing groove 402, and the sealing effect of the sealing block 506 is guaranteed.

In some embodiments, the injection molding groove 401 is formed in the surface of the lower mold 4, the injection molding groove 401 is located inside the sealing groove 402, the injection molding pipe 502 is connected to the upper mold 5, and a plurality of electric push rods 501 connected to the upper mold 5 are installed at the top of the box body 1.

The upper mold 5 is driven to move downwards through the electric push rod 501, so that the upper mold 5 and the lower mold 4 are assembled, and then the injection molding liquid is injected into the injection molding groove 401 through the injection molding pipe 502 to perform injection molding operation.

In some embodiments, a workbench 2 for placing a lower mold 4 is installed inside the box 1 near the bottom plate, a cooling assembly is arranged between the workbench 2 and the lower mold 4 for accelerating cooling forming of an injection molding workpiece, and the cooling assembly comprises: the water storage cavity 201 is arranged in the workbench 2, and the water pump 3 is arranged in the water storage cavity 201; a cooling cavity 404 is arranged in the lower die 4, the cooling cavity 404 is positioned below the injection molding groove 401, a water pumping pipe 301 is connected between the cooling cavity 404 and the water pump 3, and a return pipe 406 is connected between the cooling cavity 404 and the water storage cavity 201.

Because the cooling molding of the injection molding liquid needs to be waited after the injection is finished, the waiting time is long, the heat of the injection molding liquid in the injection molding groove 401 is conducted through the plurality of radiating fins 405, meanwhile, the cooling water in the water storage cavity 201 is pumped into the cooling cavity 404 through the water pumping pipe 301 through the water pump 3, the heat exchange is carried out on the radiating fins 405 in the cooling cavity 404, the heat in the injection molding groove 401 is taken away quickly, the effect of the quick cooling molding of an injection molding workpiece is achieved, and the cooling water after the heat exchange flows back to the water storage cavity 201 through the return pipe 406 for recycling.

In some embodiments, the cooling cavity 404 is internally provided with a plurality of cooling fins 405 which are horizontally and uniformly arranged and distributed, the top ends of the plurality of cooling fins 405 are respectively positioned on the two opposite sides and the bottom surface of the inner wall of the injection molding groove 401, the contact area with cooling water can be increased through the arrangement of the plurality of cooling fins 405, the heat exchange efficiency is improved, and meanwhile, the plurality of cooling fins 405 are arranged on the two opposite sides and the bottom surface of the inner wall of the injection molding groove 401, so that the injection molding workpiece is uniform in heat conduction, and the injection molding workpiece is prevented from influencing the quality of the injection molding part due to uneven cooling.

In some embodiments, the bottom of one side of the tank 1 is connected with an inlet pipe 202 and an outlet pipe 203, the inlet pipe 202 is positioned above the outlet pipe 203, and both the inlet pipe 202 and the outlet pipe 203 are communicated with the water storage cavity 201.

Because the incrustation scale appears after the cooling water uses for a long time easily, influences the heat transfer effect of cooling water, blocks up the pipeline even, discharges the cooling water through outlet pipe 203 this moment to pour into the retaining chamber 201 with the cooling water into again through inlet tube 202.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

The anti-leakage injection mold provided by the embodiment of the present application is described in detail above, and the principle and the implementation manner of the present application are explained by applying specific examples, and the description of the embodiment is only used to help understanding the technical scheme and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Claims

1. An injection mold of antiseep, its characterized in that includes:

the box body is internally provided with an upper die close to the top, and a lower die is arranged below the upper die; and

and the sealing assembly is arranged between the upper die and the lower die and used for preventing the injection molding liquid in the die from leaking.

2. The leak-proof injection mold of claim 1, wherein the seal assembly comprises:

the sealing groove is arranged on the upper surface of the lower die and is of an annular structure;

the sealing ring is fixedly connected with the upper surface of the lower die, and the sealing groove is positioned on the inner side of the sealing ring;

the annular groove is formed in the lower surface of the upper die and used with the sealing ring in a matched mode;

the lower surface of the upper die is provided with a pressing groove of an annular structure, and a sealing block matched with the sealing groove is arranged in the pressing groove.

3. The leakage-proof injection mold according to claim 2, wherein a moving plate is disposed inside the pressing groove, the moving plate is connected to the sealing block at a lower surface thereof, and a plurality of pressure springs are disposed between an upper surface of the moving plate and an inner wall of the pressing groove and are arranged in a circular array.

4. The anti-leakage injection mold according to claim 2, wherein the lower mold has an injection groove on its surface, the injection groove is located inside the sealing groove, the upper mold is connected with an injection pipe, and the top of the case is provided with a plurality of electric push rods connected to the upper mold.

5. The leakage-proof injection mold according to claim 4, wherein a work table for placing the lower mold is installed inside the case body near the bottom plate, a cooling assembly is installed between the work table and the lower mold for accelerating cooling molding of the injection molding workpiece, the cooling assembly comprises:

the water storage cavity is arranged in the workbench, and a water pump is arranged in the water storage cavity;

set up in the inside cooling chamber of lower mould, just the cooling chamber is located the groove below of moulding plastics, the cooling chamber with be connected with the drinking-water pipe between the water pump, the cooling chamber with be connected with the back flow between the retaining chamber.

6. The leakage-proof injection mold as claimed in claim 5, wherein a plurality of fins are horizontally and uniformly arranged inside the cooling cavity, and top ends of the plurality of fins are respectively located on two opposite sides and a bottom surface of the inner wall of the injection groove.

7. The leakage-proof injection mold according to claim 5, wherein a water inlet pipe and a water outlet pipe are connected to the bottom of one side of the case, the water inlet pipe is located above the water outlet pipe, and the water inlet pipe and the water outlet pipe are both communicated with the water storage cavity.