CN218429894U - Mold core mold locking ring, mold core and mold core mold locking ring combined structure and injection mold - Google Patents

Abstract

The utility model discloses a mold core mode locking ring, mold core and mold core mode locking ring integrated configuration, injection mould, including mold core plate subassembly, mold cavity plate subassembly and a plurality of forming assembly, including die lip, mold cavity structure and mold core mode locking ring integrated configuration, be equipped with annular gas groove on the mold core mode locking ring, it has first radial gas groove, the radial gas groove of second and the radial gas groove of third to extend on the annular gas groove, be equipped with slope gas circuit passageway in the mode locking ring main part. The utility model discloses a rational design ventilation structure has strengthened the ability that flows of air current, guarantees that the raw materials can fill bottle base die cavity satisfully. Meanwhile, the reverse ventilation is adopted to assist the bottle blank in demoulding, so that the injection pressure and demoulding thrust are reduced; meanwhile, the self-cleaning function of the die cavity can be realized, the shutdown times are reduced, and the production efficiency is improved.

Description

Mold core mold locking ring, mold core and mold core mold locking ring combined structure and injection mold

Technical Field

The utility model relates to a bottle base processing technology field, concretely relates to mold core mode locking ring, mold core and mold core mode locking ring integrated configuration, notes base mould.

Background

The mold cavity of the bottle blank mold is defined by the mold core, the mold lip, the mold cavity and the mold cavity bottom, and raw materials enter the mold cavity from the mold cavity bottom to form a bottle blank. For a specific bottle blank mold structure, reference may be made to a chinese utility model patent with patent publication No. CN206937831U, which was filed in 2017 by the present applicant. When the bottle blank is produced, the exhaust structure needs to be reasonably designed in the process of filling the die cavity with the raw materials, so that the exhaust process of the gas in the die cavity during injection molding is smoothly exhausted, and the flowing of the raw materials in the die cavity cannot be hindered. When the air exhaust is not smooth, higher injection pressure and longer injection period are needed, the production efficiency is reduced, and the qualification rate is reduced due to the fact that raw materials are not fully filled. Therefore, the exhaust structure has an important influence on the injection molding quality of the bottle blank mold. Therefore, the applicant invents a die cavity forming part assembly structure applied to a bottle blank die, and the specific structure can refer to the Chinese utility model patent with the patent publication number of CN211389991U, which is applied in 2019 by the applicant. The structure enhances the exhaust capacity of the bottle blank mold cavity, accelerates the exhaust speed of the bottle blank mold cavity, and solves the problems of difficult molding at the bottle mouth, unsatisfied quality and unqualified production period and the like caused by the increase of injection molding resistance due to mold cavity overstock.

With the development of the technology, manufacturers put higher requirements on the production of bottle blanks, and the following technical problems still exist in the current bottle blank production process. After the bottle blank is molded in the mold cavity, the bottle blank shrinks due to cooling and tends to coat the mold core, so that the bottle blank is separated from the mold core and suffers from large resistance, and the limitation of the resistance is broken by large demolding thrust and long time, so that the bottle blank is separated from the mold core.

In addition, after injection molding for many times, factors such as dust, impurities and the like influencing exhaust and bottle blank quality are easy to appear in the mold cavity, and the machine needs to be stopped for cleaning when necessary, so that the bottle blank production efficiency is greatly influenced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the mold core locking ring, the mold core and mold core locking ring combined structure and the injection mold are provided, and the injection mold is provided with a ventilation structure suitable for exhausting air of the injection mold and has the functions of assisting demolding and self-cleaning.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a mold core mode locking ring, includes the mode locking ring main part, the one end of mode locking ring main part is equipped with the mold core and connects the terminal surface, another end of mode locking ring main part just has radial die lip coordination terminal surface through configuration and die lip cooperation, be equipped with annular air duct on the mold core coordination terminal surface, it has first radial air duct, the radial air duct of second and the radial air duct of third to extend on the annular air duct, be equipped with slope gas circuit passageway in the mode locking ring main part, the one end and the radial air duct intercommunication of second of slope gas circuit passageway, the other end extend to on the die lip coordination terminal surface, the radial air duct of third extends to the mold core connecting hole internal surface at mode locking ring main part middle part.

The utility model discloses in, be equipped with exhaust passage in the mode locking ring main part, exhaust passage's one end is passed mode locking ring main part surface, and the other end extends to on the die lip terminal surface.

The utility model discloses in, exhaust passage includes exhaust hole and air vent, and the surface that the exhaust hole followed mold core mode locking ring inwards extends to communicate with the one end of air vent, the other end of air vent extend to with lip terminal surface.

The utility model discloses in, be equipped with the annular on the mating end face of die lip and gather the gas groove, the annular gathers gas groove and exhaust passage intercommunication.

The utility model discloses in, first radial gas groove, the radial gas groove of second and the radial gas groove of third are equipped with two respectively, and two first radial gas grooves are located the upper and lower both sides in annular gas groove respectively, and two radial gas grooves of third are located the upper and lower both sides in annular gas groove respectively, and two radial gas grooves of second are located the left and right sides in annular gas groove respectively.

The utility model discloses in, slope gas circuit passageway is from mold core link terminal to the direction slope of the axial direction line that is close to the mode locking ring main part.

The utility model provides a mold core and mold core mode locking ring integrated configuration, includes mold core and foretell mold core mode locking ring, the mold core includes mold core supporting part and mold core main part, the mold core main part inserts in the mold core connecting hole, and the mold core supporting part is pressed on the mold core connection terminal surface, be equipped with axial gas circuit passageway in the mold core supporting part, mold core supporting part surface is passed to the one end of axial gas circuit passageway, the other end and first radial gas tank intercommunication, be equipped with the air discharge duct on the mold core supporting part, form annular gas circuit way between air discharge duct and the mold core connecting hole inner wall, the one end and the radial gas tank intercommunication of third of annular gas circuit passageway, the other end and die lip cooperation terminal surface intercommunication.

The utility model discloses in, be equipped with the annular position of sinking on the corner position between mold core supporting part and the mold core main part.

The utility model discloses in, it gathers the gas region to form the annular between position and the mold core mode locking ring to indent the annular, and the annular gathers the regional intercommunication annular gas circuit passageway of gas and the radial gas tank of third.

The utility model provides an injection mold, includes mold core board subassembly, mold cavity board subassembly and a plurality of shaping subassembly, the shaping subassembly includes die lip, die cavity structure and foretell mold core and mold core mode locking ring integrated configuration, form the bottle base die cavity between die cavity structure and the mold core inner wall, the die lip is connected with mold core mode locking ring, the die lip includes the die lip main part, is located the mode locking ring of die lip main part one end and connects the terminal surface, is located the die cavity connection terminal surface of the die lip main part other end, be equipped with the die lip air discharge duct in the die lip main part, the one end of die lip air discharge duct extends to lip main part surface, and the other end extends to on the mode locking ring connection terminal surface and gathers the air duct intercommunication with the annular, be equipped with annular air discharge face between die locking ring connection terminal surface and the die lip connection terminal surface, the one end intercommunication annular air discharge face gathers the air duct, other end intercommunication bottle base die cavity.

The utility model has the advantages that: in the bottle base mould, through reasonable design ventilation structure, the ability of flowing of air current has been strengthened, guarantees that the raw materials can fill the bottle base die cavity fully. Meanwhile, the reverse ventilation is adopted to assist the bottle blank in demoulding, so that the bottle blank can be smoothly demoulded, the injection molding pressure and the demoulding thrust are reduced, the injection molding period is further reduced, and the product quality and the production efficiency are improved; meanwhile, the self-cleaning function of the die cavity can be realized, the shutdown times are reduced, and the production efficiency is further improved.

Drawings

The invention will be further explained with reference to the drawings and the embodiments below:

FIG. 1 is a schematic view of a mold core locking ring;

FIG. 2 is a rear view of FIG. 1;

FIG. 3 isbase:Sub>A sectional view taken along line A-A of FIG. 2;

FIG. 4 is a sectional view taken along line B-B of FIG. 2;

FIG. 5 is a schematic structural view of a mold core;

FIG. 6 is a schematic structural view of a combination structure of a mold core and a mold core locking ring;

FIG. 7 is an enlarged view of portion C of FIG. 6;

FIG. 8 is a schematic view of a molding assembly;

FIG. 9 is a sectional view taken along line D-D of FIG. 8;

FIG. 10 is a sectional view taken along line E-E of FIG. 8;

FIG. 11 is an enlarged view of portion F of FIG. 9;

FIG. 12 is an enlarged view of portion G of FIG. 9;

fig. 13 is an enlarged view of a portion H in fig. 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "left", "right", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The first embodiment is as follows:

as shown in fig. 1 to 4, the present embodiment discloses a mold core clamping ring 1, which includes a clamping ring main body 11, one end of the clamping ring main body 11 is provided with a mold core connecting end surface 12, the other end is configured to cooperate with a mold lip 3 and has a radial mold lip cooperating end surface 16, a middle portion of the mold core connecting end surface 12 is provided with a mold core connecting hole 13, a middle portion of the mold lip connecting end surface 14 is provided with a mold lip connecting hole 15, and the structures of the mold core connecting hole 13, the mold lip connecting hole 15 and the mold lip cooperating end surface 16 are substantially the same as those of the previous patent of the applicant, and will not be described in detail herein. The die core connecting end surface 12 is provided with an annular gas groove 17 which is recessed into the surface, and the annular gas groove 17 takes the central axis of the die locking ring main body 11 as the center. In order to facilitate processing and connection with other components, a first radial air groove 18, a second radial air groove 19 and a third radial air groove 110 extend on the annular air groove 17, the first radial air groove 18, the second radial air groove 19 and the third radial air groove 110 are still in the range of the die core connecting end surface 12, and the communication range of the annular air groove 17 is expanded through multiple groups of radial air grooves. Inclined air channel channels 111 corresponding to the second radial air grooves 19 in number are arranged in the mode locking ring main body 11, one end of each inclined air channel 111 is communicated with the second radial air groove 19, the other end of each inclined air channel penetrates through the mode locking ring main body 11 and extends to the die lip matching end face 16, and the third radial air groove 110 extends to the inner surface of the die core connecting hole 13.

In this embodiment, an exhaust channel 112 is disposed in the mold clamping ring main body 11, one end of the exhaust channel 112 passes through the surface of the mold clamping ring main body 11 and is communicated with the outside air, the other end extends to the die lip mating surface 16, and the exhaust channel 112 and the inclined air channel 111 are staggered from each other, and there is no intersection. For convenience of processing, the exhaust passage 112 includes an exhaust hole 1121 and a vent hole 1122, the exhaust hole 1121 extends radially inward from the outer surface of the clamp ring main body 11 and communicates with one end of the vent hole 1122, and the other end of the vent hole 1122 extends to the die lip mating end face 16. The number of the exhaust channels 112 is two or more, in order to communicate the exhaust channels 112, the die lip mating surface 16 is provided with an annular gas collecting groove 113 recessed into the surface, and the annular gas collecting groove 113 is communicated with the vent holes 1122.

In a preferred embodiment, the first radial air groove 18 and the second radial air groove 19 both extend in a direction away from the center of the clamp ring body 11, and the third radial air groove 110 extends in a direction close to the center of the clamp ring body 11. The first radial air groove 18, the second radial air groove 19 and the third radial air groove 110 are respectively provided with two and symmetrically distributed, so that the air flow effect is increased while the connection stability is ensured. First radial gas tank 18 and the radial gas tank 110 of third are located the upper and lower both sides of annular gas tank 17, the radial gas tank 19 of second is located the left and right sides of annular gas tank 17 to the size of first radial gas tank 18 is greater than the size of the radial gas tank 19 of second, guarantees airflow channel's rationality, and the direction is differentiateed to the installer of convenience simultaneously, the composite erection of being convenient for. Further, the inclined gas path channels 111 are inclined from the mold core connecting end surface 12 to a direction close to the axial center line of the mold clamping ring main body 11, and after the mold core mold clamping ring 1 and the mold lip 3 are separated, the plurality of inclined gas path channels 111 blow out gas in an inclined direction to the axial center line to assist in demolding of the bottle blank.

Example two:

as shown in fig. 5 to 7, the present embodiment discloses a mold core and mold core locking ring combination structure, including a mold core 2 and the mold core locking ring 1 according to the first embodiment, the mold core 2 includes a mold core supporting portion 21 and a mold core main portion 22, the mold core main portion 22 is inserted into a mold core connecting hole 13, an end surface of the mold core supporting portion 21 is pressed on a mold core connecting end surface 12, an axial air passage channel 23 is provided in the mold core supporting portion 21, the number of the axial air passage channels 23 corresponds to the number of the first radial air grooves 18, one end of the axial air passage channel 23 passes through the surface of the mold core supporting portion 21 and is connected to an external air pressure device, the other end is communicated with the first radial air grooves 18, a plurality of air discharge grooves 24 are provided on the mold core supporting portion 21, an annular air passage 25 is formed between the plurality of air discharge grooves 24 and an inner wall of the mold core connecting hole 13, one end of the annular air passage 25 is communicated with a third radial air groove 110, and the other end is communicated with a bottle blank mold cavity 5 through a mold lip mating end surface 16.

In this embodiment, an annular recessed portion 26 is provided at a corner position between the core support portion 21 and the core main body portion 22, and the annular recessed portion 26 is recessed in an end surface of the core support portion 21 and a surface of the core main body portion 22. When the mold core 2 is completely inserted into the mold core locking ring 1, an annular air accumulation area 27 is formed between the annular concave position 26 and the mold core locking ring 1, and the annular air accumulation area 27 is communicated with the annular air passage channel 25 and the third radial air groove 110. In addition, other structures of the mold core 2 are basically the same as those of the previous patents of the applicant, and are not described in detail herein.

Example three:

as shown in fig. 8 to fig. 13, this embodiment discloses a molding assembly, which includes a mold core 2, a mold core locking ring 1, a mold lip 3 and a mold cavity structure 4 as in the first embodiment, a bottle parison cavity 5 is formed between the inner walls of the mold core 2 and the mold cavity structure 4, the connection structure between the mold core 2 and the mold core locking ring 1 is the mold core and mold core locking ring combination structure in the second embodiment, the mold lip 3 includes a mold lip main body 31, a mold locking ring connection end surface 32 located at one end of the mold lip main body 31, and a mold cavity connection end surface 33 located at the other end of the mold lip main body 31, a mold lip exhaust groove 35 is provided in the mold lip main body 31, one end of the mold lip exhaust groove 35 extends to the outer surface of the mold lip main body 31, the other end extends to the mold locking ring connection end surface 32 and is communicated with an annular gas gathering groove 113, and a gas channel is formed between the annular gas gathering groove 113 and the mold locking ring connection end surface 32.

In this embodiment, a concave annular ring 114 is disposed on the die lip connecting end surface 16, an inter-die-lip air-release surface 34 is formed between the annular ring 114 and the die locking ring connecting end surface 32, the inter-die-lip air-release surface 34 is located between the die locking ring connecting end surface 32 and the die lip connecting end surface 16, one end of the inter-die-lip air-release surface 34 is communicated with the annular air-gathering groove 113, and the other end is communicated with the bottle blank mold cavity 5. The cavity structure 4 comprises a cavity lock ring 41, a cavity 42 and a cavity bottom 43, the die lip 3 is configured to cooperate with the cavity lock ring 41, and the structure of the cavity structure 4 is substantially the same as that of the applicant's prior patent and is not described in detail herein.

Example four:

as shown in fig. 1 to 13, the present embodiment discloses an injection mold, which includes a core plate assembly, a cavity plate assembly, and a plurality of molding assemblies according to the third embodiment, wherein the core plate assembly and the cavity plate assembly are provided with mounting positions corresponding to respective portions of the molding assemblies. The specific structural principles of the core plate assembly and the cavity plate assembly can be referred to the patent previously applied by the applicant and are not described in detail herein.

In the embodiment, the axial gas passage channel 23, the first radial gas groove 18, the annular gas groove 17, the third radial gas groove 110, the annular gas gathering area 27, the annular gas passage channel 25 and the bottle blank mold cavity 5 which are communicated in sequence form a first gas passage channel;

the axial air channel 23, the first radial air groove 18, the annular air groove 17, the second radial air groove 19 and the inclined air channel 111 which are sequentially communicated form a second air channel, when a blank is injected, the die lip 3 is pressed at an outlet of the inclined air channel 111, and the air channel is in a closed state.

The exhaust channel 112, the annular gas gathering groove 113, the exhaust surface 34 between the die lips and the bottle blank die cavity 5 which are communicated in sequence form a third gas path channel;

and a fourth air channel is formed by the die lip exhaust groove 35, the annular air gathering groove 113, the inter-die lip exhaust surface 34 and the bottle blank die cavity 5 which are sequentially communicated.

The utility model discloses a theory of operation as follows:

firstly, when raw materials are injected into a bottle blank mold cavity 5, the raw materials enter from a mold cavity bottom 43 and gradually fill the space of the whole bottle blank mold cavity 5, a part of gas in the bottle blank mold cavity 5 is discharged through a first gas channel, and because the space between an annular gas channel 25 and an annular gas gathering area 27 is larger than that between a front channel and a rear channel, the gas enters the annular gas gathering area 27 through the annular gas channel 25 and is temporarily stored in the annular gas gathering area 27, and in the process, dust and impurities in the bottle blank mold cavity 5 also enter and are accumulated in the annular gas channel 25 and the annular gas gathering area 27;

meanwhile, the other part of gas in the bottle blank mold cavity 5 is exhausted from the third air channel and the fourth air channel after passing through the exhaust surface 34 between the mold lips, and the three air channels are adopted for exhausting simultaneously, so that the exhaust effect is faster and the airflow resistance is smaller compared with the traditional two air channels.

Then, after the bottle blank is formed and the die lip 3 is opened, the second air channel is in a smooth state.

Then, injecting pressurized gas into the axial gas path channel 23 on one side, wherein the pressurized gas respectively enters the first gas path channel and the second gas path channel after passing through the axial gas path channel 23, the pressurized gas is blown to the top of the bottle blank after passing through the first gas path channel, the pressurized gas is obliquely blown to the outer surface of the bottle blank after passing through the second gas path channel, and the two groups of gas flow jointly act to assist the bottle blank to be separated from the mold core 2; meanwhile, when the pressurized gas passes through the first gas passage, dust and impurities accumulated in the annular gas collecting area 27 and the annular gas passage 25 can be blown out, so that the self-cleaning function is realized.

The above is only the preferred embodiment of the present invention, as long as the technical solution of the purpose of the present invention is realized by the substantially same means, all belong to the protection scope of the present invention.

Claims (10)

1. The utility model provides a mold core mode locking ring, includes the mode locking ring main part, the one end of mode locking ring main part is equipped with the mold core and connects the terminal surface, another end of mode locking ring main part just has radial die lip matched end face, its characterized in that through the configuration with the die lip cooperation: the mold core is characterized in that an annular air groove is formed in the mold core connecting end face, a first radial air groove, a second radial air groove and a third radial air groove extend from the annular air groove, an inclined air channel is arranged in the mold locking ring main body, one end of the inclined air channel is communicated with the second radial air groove, the other end of the inclined air channel extends to the mold lip matching end face, and the third radial air groove extends to the inner surface of a mold core connecting hole in the middle of the mold locking ring main body.

2. The mold core clamping ring according to claim 1, wherein: an exhaust channel is arranged in the mold locking ring main body, one end of the exhaust channel penetrates through the surface of the mold locking ring main body, and the other end of the exhaust channel extends to the matching end face of the mold lip.

3. The mold core clamping ring according to claim 2, wherein: the exhaust channel comprises an exhaust hole and an air vent, the exhaust hole extends inwards from the outer surface of the mold core mold locking ring and is communicated with one end of the air vent, and the other end of the air vent extends to the end face matched with the mold lip.

4. The mold core clamping ring according to claim 3, wherein: and an annular gas gathering groove is formed in the matching end surface of the die lip and communicated with the exhaust channel.

5. The mold core clamping ring according to claim 1, wherein: the first radial air grooves, the second radial air grooves and the third radial air grooves are respectively provided with two first radial air grooves which are respectively positioned at the upper side and the lower side of the annular air groove, the two third radial air grooves which are respectively positioned at the upper side and the lower side of the annular air groove, and the two second radial air grooves which are respectively positioned at the left side and the right side of the annular air groove.

6. The mold core clamping ring according to claim 1, wherein: the inclined gas path channel is inclined from the connecting end surface of the mold core to the direction close to the axial center line of the mold locking ring main body.

7. The utility model provides a mold core and mold core mode locking ring integrated configuration which characterized in that: the mold core locking ring comprises a mold core and the mold core locking ring as claimed in any one of claims 1 to 6, wherein the mold core comprises a mold core supporting part and a mold core main part, the mold core main part is inserted into a mold core connecting hole, the mold core supporting part is pressed on a mold core connecting end face, an axial gas path channel is arranged in the mold core supporting part, one end of the axial gas path channel penetrates through the surface of the mold core supporting part, the other end of the axial gas path channel is communicated with a first radial gas groove, an exhaust groove is arranged on the mold core supporting part, an annular gas path channel is formed between the exhaust groove and the inner wall of the mold core connecting hole, one end of the annular gas path channel is communicated with a third radial gas groove, and the other end of the annular gas path channel is communicated with a mold lip matching end face.

8. The mold core and mold core lock ring combination structure of claim 7, wherein: and an annular concave position is arranged at the corner position between the mold core supporting part and the mold core main body part.

9. The structure of claim 8, wherein the mold core and the mold core locking ring are combined together: an annular gas gathering area is formed between the annular concave position and the mold core mold locking ring and is communicated with the annular gas path channel and the third radial gas groove.

10. An injection mold, characterized in that: including die core board subassembly, die cavity board subassembly and a plurality of shaping subassemblies, the shaping subassembly, including die lip, die cavity structure and any of above-mentioned claim 7-9 die core and die core mode locking ring integrated configuration, form the bottle base die cavity between die cavity structure and the mold core inner wall, the die lip is connected with die core mode locking ring, the die lip includes the die lip main part, is located the die locking ring connection terminal surface of die lip main part one end, is located the die cavity connection terminal surface of the die lip main part other end, be equipped with the die lip air discharge duct in the die lip main part, the one end of die lip air discharge duct extends to lip main part surface, and the other end extends to on the die locking ring connection terminal surface and gathers the air duct intercommunication with the annular, be equipped with annular air discharge face between die locking ring connection terminal surface and the die lip connection terminal surface, the one end intercommunication annular air discharge face gathers the air duct, and the other end intercommunication bottle base die cavity.

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