CN214687697U - Front mold core assembly and three-plate mold - Google Patents

Abstract

The utility model relates to the technical field of mold, a front mould benevolence subassembly and three board moulds are provided, front mould benevolence subassembly includes: the front die core is arranged in the mounting cavity of the plate A and is provided with a front die cavity and a through hole communicated with the front die cavity; the runner plate is movably arranged on one side of the front mold core, which is deviated from the front mold cavity, and is provided with a branch runner; the front mold insert is arranged on the runner plate, penetrates through the runner plate and the through hole, a channel is arranged inside the front mold insert, one end of the channel is communicated with the branch runner, and the other end of the channel is communicated with the front mold cavity; wherein, one side that deviates from in front mould benevolence on the runner plate is equipped with first hasp, and the one side that is close to on the water gap board near to the A board has seted up first lockhole. The product can be prevented from being adhered to the front mold insert and the front mold cavity, the product is prevented from being pulled, the damage of the mold caused by the damage of the front mold cavity can be prevented, and the normal and efficient production of the mold is ensured.

Description

Front mold core assembly and three-plate mold

Technical Field

The utility model relates to the technical field of mold, especially, relate to a front mould benevolence subassembly and three-plate mould.

Background

The three-plate mold generally includes a face plate, a gate plate, an a plate, a B plate, a knock-out plate, a fixing plate, etc., wherein the a plate is provided with a front mold core, the B plate is provided with a rear mold core, and the front mold core and the rear mold core are matched to form a cavity for molding a product.

In a three-plate mold, a product is easy to adhere to a front mold insert when injection molding is finished, particularly when the glue position on a current mold core is more and deeper, the product generates a large packing force on the front mold insert after injection molding is finished, and when the A plate and the B plate are opened, the product is adhered to the front mold insert, so that the product is easy to be damaged; in severe cases, the product sticks into the cavity of the front mold and can be removed only by great labor expenditure; when the stress is too serious, the front mold cavity can be damaged, so that the mold is damaged, and the production progress of the whole project is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a front mould benevolence subassembly to solve among the prior art the goods easily with the technical problem of front mould mold insert adhesion.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a front mould benevolence subassembly is applied to on the three-plate mould, and three-plate mould has mouth of a river board and A board, and A board has the installation cavity that runs through it, front mould benevolence subassembly includes: the front die core is arranged in the mounting cavity of the plate A and is provided with a front die cavity and a through hole communicated with the front die cavity; the runner plate is movably arranged on one side of the front mold core, which is deviated from the front mold cavity, and is provided with a branch runner; the front mold insert is arranged on the runner plate and penetrates through the runner plate and the through hole, a channel is arranged inside the front mold insert, one end of the channel is communicated with the branch runner, and the other end of the channel is communicated with the front mold cavity; a first lock catch is arranged on one side, away from the front mold core, of the runner plate, and a first lock hole used for being matched with the first lock catch in an inserted mode is formed in one side, close to the A plate, of the water gap plate; or, one side of the runner plate close to the plate A is provided with a first lock catch, and one side of the runner plate, which is far away from the front mold core, is provided with a first lock hole which is used for being matched with the first lock catch on the runner plate in an inserting manner.

In one embodiment, a front mold groove is formed in one side, away from the front mold cavity, of the front mold core, and the runner plate is movably arranged in the front mold groove.

In one embodiment, the runner plate includes: a runner plate body, wherein a runner groove is arranged on one side of the runner plate body, which is far away from the front mold cavity, an insert mounting hole is arranged on the bottom wall of the runner groove, the insert mounting hole penetrates through the runner plate body and is communicated with the through hole, and one end of the front mold insert is detachably mounted in the insert mounting hole; and the runner pressing plate is detachably arranged in the runner groove and is pressed on the front mold insert.

In one embodiment, the front mold core assembly further includes a limiting portion protruding from the front mold core, the flow channel plate is movably limited between the front mold core and the limiting portion, and a moving distance for the flow channel plate to move is provided between the limiting portion and the flow channel plate.

In one embodiment, the flow field plate has a stopper groove, and the stopper portion includes: the fixing section is fixed on the front mold core; and the limiting section is connected with the fixed section, the limiting section extends into the limiting groove, and a moving distance for moving the runner plate is arranged between the limiting section and the bottom wall of the limiting groove.

In one embodiment, the front core assembly further comprises a spring disposed between the front core and the runner plate.

In one embodiment, a first spring groove is formed in one side, close to the runner plate, of the front mold core, and one end, close to the front mold core, of the spring is accommodated in the first spring groove; and/or a second spring groove is formed in one side, close to the front die core, of the runner plate, and one end, close to the runner plate, of the spring is accommodated in the second spring groove.

In one embodiment, the front mold core assembly further includes a guide portion, the guide portion is protruded from a side of the front mold core away from the front mold cavity, and the runner plate is provided with a guide hole in sliding fit with the guide portion.

Another object of the utility model is to provide a three-plate die, three-plate die includes: the die comprises a panel, a water gap plate, an A plate and a B plate which are sequentially arranged, wherein the A plate is provided with an installation cavity penetrating through the A plate, and one side of the B plate close to the A plate is provided with a rear die core; the front mold core assembly of any embodiment is characterized in that the front mold core of the front mold core assembly is fixed in the mounting cavity, and a front mold cavity of the front mold core assembly is matched with the rear mold core; a first lock catch is arranged on one side, away from the front mold core of the front mold core assembly, of the runner plate of the front mold core assembly, and a first lock hole used for being matched with the first lock catch in an inserting mode is formed in one side, close to the plate A, of the water gap plate; or a first lock catch is arranged on one side, close to the plate A, of the water gap plate, and a first lock hole used for being matched with the first lock catch in an inserting mode is formed in one side, away from the front mold core of the front mold core assembly, of the runner plate of the front mold core assembly; a second lock catch is arranged on one side, close to the water gap plate, of the panel, and a second lock hole used for being matched with the second lock catch in an inserted mode is formed in one side, close to the panel, of the water gap plate; or, be close to on the water gap board be equipped with the second hasp on one side of panel, be close to on the panel be used for with the second hasp complex second lockhole of pegging graft mutually is seted up to one side of water gap board.

In one embodiment, the nozzle plate comprises: a spout plate body; the water-saving port insert is arranged on one side, close to the plate A, of the water port plate body and is used for being matched with a runner plate of the front mold core assembly; the first lock is arranged on one side, deviating from the front mold core of the front mold core assembly, of the runner plate of the front mold core assembly, and the first lock hole is formed in one side, close to the plate A, of the water saving port insert; or the first lock catch is arranged on one side, close to the plate A, of the water-saving port insert, and the first lock hole is formed in one side, away from the front mold core of the front mold core assembly, of the runner plate of the front mold core assembly; the three-plate mold further comprises a sprue bush, the sprue bush is arranged on the panel, the sprue bush penetrates through the sprue plate body and the water-saving sprue insert and is communicated with a branch runner of a runner plate of the front mold core assembly.

The embodiment of the present invention provides one or more technical solutions, which at least have the following technical effects or advantages:

the utility model provides a front mould core assembly, through setting up the front mould core that has preceding model chamber and perforation, the activity sets up the runner plate that deviates from in preceding model chamber one side on the front mould core, set up on the runner plate and wear to locate runner plate and perforated front mould mold insert, and through setting up looks grafting complex first hasp and first lockhole between the nozzle plate of runner plate and three-plate mould, make the three-plate mould of using front mould core assembly when the die sinking, the nozzle plate can drive runner plate and front mould insert through the cooperation of first hasp and first lockhole and move towards the side that deviates from the front mould core for the front mould core, make the front mould insert can be taken out in advance relative to preceding model chamber, so that the front mould insert breaks away from the goods in preceding model chamber at first, thereby prevent the goods in the preceding model chamber from adhering to the front mould insert, make during subsequent A board and B board die sinking, the goods are not adhered to front mould insert and preceding model chamber and easily demold, can prevent the product from being pulled, ensure the integrity of the product, prevent the damage of the mold caused by the damage of the front mold cavity and ensure the normal and high-efficiency production of the mold.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a first schematic structural diagram of a front mold core assembly according to an embodiment of the present invention;

fig. 2 is a second schematic structural view of a front mold core assembly according to an embodiment of the present invention;

fig. 3 is a schematic top view of a front mold insert assembly according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is a schematic cross-sectional view taken along line B-B of FIG. 3;

FIG. 6 is a schematic cross-sectional view taken along the line C-C in FIG. 3;

fig. 7 is a schematic structural view of a front mold insert according to an embodiment of the present invention;

fig. 8 is a first schematic structural view of the runner plate body and the front mold insert provided in the embodiment of the present invention;

fig. 9 is a second schematic structural view of the runner plate body and the front mold insert according to the embodiment of the present invention;

fig. 10 is a first schematic structural view of a flow channel plate body according to an embodiment of the present invention;

fig. 11 is a second schematic structural view of the flow channel plate body according to the embodiment of the present invention;

fig. 12 is a schematic structural view of a three-plate mold according to an embodiment of the present invention;

fig. 13 is a schematic cross-sectional structural view of a three-plate mold according to an embodiment of the present invention;

fig. 14 is a schematic structural diagram of a water gap plate according to an embodiment of the present invention;

fig. 15 is a second schematic structural view of a water gap plate according to an embodiment of the present invention;

fig. 16 is a schematic structural diagram of a panel according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

100. a front core assembly; 10. a front mold core; 101. a front mold cavity; 102. perforating; 20. a runner plate; 201. branch flow channels; 30. a front mold insert; 301. a channel; 40. a first lock catch; 103. a front mold groove; 21. a runner plate body; 211. a flow channel groove; 212. an insert mounting hole; 22. a runner pressing plate; 50. a limiting part; 202. a limiting groove; 51. a fixed section; 52. a limiting section; 60. a spring; 104. a first spring groove; 203. a second spring groove; 70. a guide portion; 204. a guide hole; 1000. three-plate mould; 200. a panel; 300. a water gap plate; 400. a, a plate; 500. b, plate; 410. a mounting cavity; 510. a rear mold core; 3001. a first lock hole; 210. a second lock catch; 3002. a second lock hole; 310. a spout plate body; 320. a water-saving opening insert; 600. and (4) a sprue bush.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like 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 and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are merely for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

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, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1 to 4 and 9, a front mold insert assembly 100 according to an embodiment of the present invention is applied to a three-plate mold having a nozzle plate, an a plate and a B plate, wherein the a plate has a mounting cavity penetrating through the a plate, i.e., the mounting cavity penetrates through two opposite surfaces of the a plate, and fig. 12 to 15 exemplarily show the three-plate mold 1000, the nozzle plate 300, the a plate 400 and the mounting cavity 410; the front mold core assembly 100 comprises a front mold core 10, a runner plate 20 and a front mold insert 30, wherein:

the front mold core 10 is disposed in the mounting cavity of the a plate, and specifically, the front mold core 10 may be fixedly connected to the a plate by screws or bolts; the front mold core 10 is provided with a front mold cavity 101 and a through hole 102 communicated with the front mold cavity 101, the front mold cavity 101 is arranged at one side of the front mold core 10 and is used for being matched with a rear mold core on a plate B of the three-plate mold to form a mold cavity for molding a product, and the product can be molded in the front mold cavity 101; the through hole 102 penetrates through the front mold core 10 for the front mold insert 30 to penetrate and extend into the front mold cavity 101.

The runner plate 20 is movably disposed on one side of the front mold core 10 away from the front mold cavity 101, that is, the runner plate 20 and the front mold cavity 101 are respectively disposed on two opposite sides of the front mold core 10, specifically, the runner plate 20 is movably disposed on the upper side of the front mold core 10, and the front mold cavity 101 is disposed on the lower side of the front mold core 10; the runner plate 20 is movably disposed on the front mold core 10, which means that the runner plate 20 can be movably disposed on the front mold core 10 relative to the front mold core 10; the runner plate 20 has a branch runner 201, and the branch runner 201 may include a plurality of runners communicated with each other, and is configured to communicate with a main runner of a sprue bush of the three-plate mold and communicate with the interior of the front mold insert 30, and a fluid may flow to the branch runner 201 through the sprue bush of the three-plate mold.

The front mold insert 30 is disposed on the runner plate 20, that is, the front mold insert 30 and the runner plate 20 are movable relative to the front mold core 10, the front mold insert 30 is fixed to the runner plate 20, and specifically, the front mold insert 30 is detachably disposed on the runner plate 20; the front mold insert 30 is disposed through the runner plate 20 and the through hole 102, a channel 301 is disposed inside the front mold insert 30, one end of the channel 301 is communicated with the branch runner 201, and the other end of the channel 301 is communicated with the front mold cavity 101, so that fluid can enter the front mold cavity 101 through the branch runner 201 and the channel 301.

Wherein, one side of the runner plate 20 deviating from the front mold core 10 is provided with a first lock catch 40, the first lock catch 40 can be a nylon fastener, a rubber plug (such as a rubber powder-free rubber plug), a metal plug, a shutter, or a protrusion convexly arranged on the runner plate 20, the first lock catch 40 is convexly arranged on the runner plate 20, and one side of the water gap plate close to the plate a is provided with a first lock hole for being in plug-in fit with the first lock catch 40; the shape of the first locking hole is matched with the shape of the first locking buckle 40, for example, the first locking buckle 40 may be substantially cylindrical, and the first locking hole may be a circular hole, but may also be other shapes; one end of the first locking buckle 40 can be fixed on the runner plate 20 by a screw or a bolt, and of course, can also be integrally formed or welded on the runner plate 20, the other end of the first locking buckle 40 protrudes out of the runner plate 20 and is used for being matched with the first locking hole, the first locking hole is detachably inserted and matched with the first locking buckle 40, namely, when the two are mutually inserted and matched, friction force or close fit force exists between the two, when the first lock buckle 40 is subjected to the force which causes the first lock buckle to deviate from the first lock hole and move and the force is larger than the friction force between the first lock hole and the first lock buckle 40, the two are mutually separated, so that the runner plate 20 and the nozzle plate can be simultaneously moved with respect to the front mold core 10 by the connection of the first locking catches 40 and the first locking holes, and when a certain force (which is greater than the friction force between the first locking catch 40 and the first locking hole) is applied, the first locking catch 40 is separated from the first locking hole to separate the runner plate 20 from the nozzle plate; wherein, the water gap plate is also provided with an exhaust through hole communicated with the first lock hole; the number of the first locking catches 40 is the same as the number of the first locking holes, and the first locking catches 40 and the first locking holes correspond to each other, and optionally, the number of the first locking catches 40 and the number of the first locking holes are 2 to 4, such as 2, 3, and 4, but not limited thereto. Of course, the arrangement positions of the first lock catch 40 and the lock hole are not limited to this, in another embodiment, the first lock catch 40 is disposed on one side of the nozzle plate close to the a plate, and the first lock hole for being in plug-in fit with the first lock catch 40 on the nozzle plate is disposed on one side of the runner plate 20 away from the front mold core 10, that is, the arrangement positions of the first lock catch 40 and the first lock hole are opposite.

The front mold core assembly 100 provided by the embodiment of the present application, by providing the front mold core 10 having the front mold cavity 101 and the through hole 102, the runner plate 20 movably disposed on the front mold core 10 and facing away from one side of the front mold cavity 101, and the front mold insert 30 disposed on the runner plate 20 and penetrating through the runner plate 20 and the through hole 102, and by providing the first locking device 40 and the first locking hole which are in a plugging fit with each other between the runner plate 20 and the nozzle plate of the three-plate mold, when the three-plate mold to which the front mold core assembly 100 is applied is opened, the nozzle plate can drive the runner plate 20 and the front mold insert 30 to move towards one side facing away from the front mold core 10 relative to the front mold core 10 through the cooperation of the first locking device 40 and the first locking hole, so that the front mold insert 30 can be drawn in advance relative to the front mold cavity 101, so that the front mold insert 30 is firstly separated from the product in the front mold cavity 101, thereby preventing the product in the front mold cavity 101 from adhering to the front mold insert 30, when the subsequent plate A and the plate B are opened, the product is not adhered to the front mold insert 30 and the front mold cavity 101, so that the demolding is easy, the product can be prevented from being pulled due to adhesion to the front mold insert during the mold opening, the integrity of the product is ensured, the damage of the mold due to the damage of the front mold cavity 101 can be prevented, and the normal and efficient production of the mold is ensured; moreover, the front mold core assembly 100 is simple in structural processing, is particularly suitable for the condition that the structural space of the front mold is small, and can ensure that products can be produced smoothly, continuously and efficiently under the condition that the structural complexity of the mold is not increased; meanwhile, the runner plate 20 is directly and movably arranged on the front mold core 10, namely the front mold core of the existing three-plate mold is creatively decomposed into the front mold core 10 and the runner plate 20, the mounting cavity of the plate A penetrates through the plate A, the sprue bush of the three-plate mold is favorably communicated with the branch runner 201 on the runner plate 20 directly after penetrating through the runner plate, and the extra block of the plate A is not arranged between the front mold core 10 and the runner plate 20, so that the length of the runner can be effectively shortened; therefore, under the condition of not increasing the structural complexity of the mold and effectively shortening the length of the water gap, the front mold insert 30 can be separated from the product in the front mold cavity 101 in advance, and the product is prevented from being adhered to the front mold insert 30.

In one embodiment, referring to fig. 1 and fig. 7, a front mold cavity 103 is disposed on a side of the front mold core 10 away from the front mold cavity 101, that is, the front mold cavity 101 and the front mold cavity 103 are respectively disposed on two opposite sides of the front mold core 10, specifically, the front mold cavity 103 is disposed on an upper surface of the front mold core 10, and the front mold cavity 101 is disposed on a lower surface of the front mold core 10; the runner plate 20 is movably disposed in the front mold cavity 103, that is, the runner plate 20 can move in the front mold cavity 103 in a direction away from the front mold core 10 or in a direction close to the front mold core 10. So set up, the front mould recess 103 can hold the runner plate 20 to do benefit to the front mould benevolence 10 and the runner plate 20 and the nozzle plate is cooperated, and do benefit to spacing to the activity of runner plate 20, and the runner plate 20 holds in the front mould benevolence 10 promptly, in order to do benefit to forming the whole front mould benevolence, can not increase the thickness behind front mould benevolence 10 and the stack of runner plate 20, in order not additionally to increase the mould complexity. Further, the upper surface of the runner plate 20 is flush with the upper surface of the front core 10 to facilitate the fitting with other parts in the three-plate molding state.

In one embodiment, referring to fig. 1, 4 and 8, the runner plate 20 includes a runner plate body 21 and a runner clamp plate 22, the runner plate body 21 is movably disposed on a side of the front mold core 10 away from the front mold cavity 101, specifically, the runner plate body 21 is movably disposed in the front mold cavity 103, a runner cavity 211 is disposed on a side of the runner plate body 21 away from the front mold cavity 101, an insert mounting hole 212 is disposed at a bottom wall of the runner cavity 211, the insert mounting hole 212 penetrates through the runner plate body 21 and communicates with the through hole 102, one end of the front mold insert 30 is detachably mounted in the insert mounting hole 212, specifically, the insert mounting hole 212 may be a stepped hole, or a step platform is arranged in the insert mounting hole 212, a flange is arranged at the rear end of the front mold insert 30, the front end of the front mold insert 30 sequentially penetrates through the insert mounting hole 212 and the through hole 102 to extend into the front mold cavity 101, the flange at the rear end of the front mold insert 30 abuts the step floor of the insert mounting hole 212; the runner clamp plate 22 is detachably disposed in the runner groove 211 and is pressed on the front mold insert 30, and specifically, the runner clamp plate 22 may be connected to the runner plate body 21 by a screw or a bolt, so as to limit the front mold insert 30 between the runner clamp plate 22 and the runner plate body 21. So set up, when the front mould mold insert 30 damages, the accessible is dismantled runner clamp plate 22 and directly takes out front mould mold insert 30 and changes, can need not to dismantle whole changes such as front mould benevolence 10, runner plate 20 for it is more convenient to change, and maintenance efficiency is high, and can save the replacement cost, and runner clamp plate 22 can improve the steadiness of front mould mold insert 30 installation on runner plate 20 with the cooperation of runner plate body 21. Further, the upper surface of the runner plate 22 is flush with the upper surface of the runner plate body 21, so that the water gap plate is smoothly matched with the runner plate body 21 and the runner plate 22 in a three-plate mold closing state, and the branch runners 201 are conveniently distributed on the runner plate body 21 and the runner plate 22. Further, at least a part of the runner channels 201 are arranged on the runner pressure plate 22, the runner pressure plate 22 has a through hole communicated with the runner channels 201 and penetrating through the runner pressure plate 22, the rear end of the channel 301 of the front mold insert 30 is communicated with the through hole of the runner pressure plate 22, and the front end of the channel 301 of the front mold insert 30 is communicated with the front mold cavity 101, so that fluid can enter the front mold cavity 101 through the runner channels 201, the through hole of the runner pressure plate 22 and the channel 301 of the front mold insert 30.

Alternatively, in an embodiment, referring to fig. 1 and 8, the number of the runner cavities 211 and the runner clamp 22 may be two, each runner clamp 22 is disposed in one runner cavity 211, and each runner cavity 211 may have two insert mounting holes 212 therein to correspondingly mount two front mold inserts 30. It should be noted that the number of the runner cavities 211 and the runner plates 22 is not limited thereto, and the number of the insert mounting holes 212 and the front mold inserts 30 is not limited thereto, and one, three or more may be adaptively provided according to actual production requirements.

Optionally, in an embodiment, referring to fig. 1, when the first locking device 40 is disposed on the runner plate 20, one end of the first locking device 40 may be fixedly disposed on a side of the runner plate body 21 away from the front mold core 10; when the first lock hole is formed on the runner plate 20, the first lock hole may be opened on a side of the runner plate body 21 away from the front mold core 10. Of course, when the first lock catch 40 is disposed on the runner plate 20, one end of the first lock catch 40 may be fixedly disposed on one side of the runner plate 22 away from the front mold core 10, and when the first lock hole is disposed on the runner plate 20, the first lock hole may be opened on one side of the runner plate 22 away from the front mold core 10.

It should be noted that the mounting manner of the front mold insert 30 on the runner plate 20 is not limited thereto, and in other embodiments, the front mold insert 30 may be directly fixed on the runner plate 20, or may be directly detachably connected to the runner plate 20 by screws or bolts, etc., but is not limited thereto.

In one embodiment, referring to fig. 1 and 6, the front mold core assembly 100 further includes a limiting portion 50, the limiting portion 50 is disposed on the front mold core 10 in a protruding manner, and the flow channel plate 20 is movably limited between the front mold core 10 and the limiting portion 50, i.e., the flow channel plate 20 can only move between the front mold core 10 and the limiting portion 50, and a moving distance for the flow channel plate 20 to move is provided between the limiting portion 50 and the flow channel plate 20; specifically, the flow channel plate body 21 is movably limited between the front mold core 10 and the limiting portion 50, the limiting portion 50 is disposed on the front mold core 10 near the front mold groove 103, and a groove structure for accommodating the limiting portion 50 can be disposed on the front mold core 10 near the front mold groove 103, so that the limiting portion 50 is embedded in the front mold core 10. According to the arrangement, the moving range of the runner plate 20 can be limited, so that the runner plate 20 can only move within the limited distance between the limiting part 50 and the front mold core 10, when the three-plate mold is opened, and the runner plate and the plate A are opened, the runner plate 20 and the front mold insert 30 are driven by the cooperation of the first lock catches 40 and the first lock holes to move towards one side departing from the front mold core 10 relative to the front mold core, when the runner plate 20 moves to abut against the limiting part 50, the movement is limited by the limiting part 50, the runner plate and the plate A continue to move relatively, so that the first lock catches 40 are separated from the first lock holes, the runner plate is separated from the runner plate 20, and the runner plate 20 is prevented from being moved to be separated from the front mold core 10 by the runner plate. It should be noted that, in some other embodiments, the limiting portion 50 may not be provided, for example, the mounting cavity of the a plate may be a stepped cavity formed with a step, after the front mold core 10 is mounted in the mounting cavity of the a plate, the flow channel plate 20 is movably limited between the front mold core 10 and the step of the mounting cavity of the a plate, and a movable distance for the flow channel plate 20 to move is provided between the flow channel plate 20 and the step of the mounting cavity of the a plate, that is, the step of the mounting cavity of the flow channel plate 20 and the a plate replaces the function of the limiting portion 50. The limiting portion 50 may be a plate, a sheet, a rod, or a protrusion protruding from the front mold core 10, but is not limited thereto, and may be any component capable of limiting and blocking the flow channel plate 20.

Alternatively, in one embodiment, two limiting portions 50 may be provided, which are respectively located at two sides of the flow passage plate 20 to improve the limiting effect, and of course, the number of the limiting portions 50 is not limited thereto, and one, three or more limiting portions may be provided according to actual requirements.

Optionally, in an embodiment, referring to fig. 1, fig. 6 and fig. 10, the flow channel plate 20 has a limiting groove 202, specifically, the limiting groove 202 may be opened at an edge of the flow channel plate body 21, the limiting portion 50 includes a fixing section 51 and a limiting section 52, the fixing section 51 is fixed to the front mold core 10, for example, may be fixed to the front mold core 10 by a screw or a bolt, the limiting section 52 is connected to the fixing section 51, and the limiting section 52 extends into the limiting groove 202, specifically, the fixing section 51 is fixed to the front mold core 10 close to the front mold groove 103, the limiting section 52 extends away from the front mold core 10 toward the front mold groove 103, the fixing section 51 and the limiting section 52 may substantially form an L-shaped limiting portion 50, and a movable distance for the flow channel plate 20 to move is provided between the limiting section 52 and the front mold core 10, so that the flow channel plate 20 is movably limited between the limiting section 52 and the front mold core 10. With such an arrangement, when the three-plate mold is in a mold closing state, the upper surfaces of the limiting portion 50, the runner plate 20 and the front mold core 10 are flush with each other, so as not to interfere with the cooperation between the runner plate 20 and the front mold core 10 and other parts such as a water gap plate.

In one embodiment, referring to fig. 5 and 7, the front core assembly 100 further includes a spring 60, and the spring 60 is disposed between the front core 10 and the runner plate 20. With such an arrangement, when the nozzle plate and the plate a are opened, the nozzle plate drives the runner plate 20 and the front mold insert 30 to move towards the side away from the front mold core 10 relative to the front mold core 10 through the cooperation of the first lock catch 40 and the first lock hole, the spring 60 can not only assist the runner plate 20 to move towards the direction away from the front mold core 10, but also support the runner plate 20 when the nozzle plate moves to the position where the first lock catch 40 and the first lock hole are separated, so as to prevent the runner plate 20 from moving towards the direction close to the front mold core 10 in the opposite direction, and ensure that the front mold insert 30 can maintain the state after being drawn in advance to prevent the front mold insert from being inserted back into the front mold cavity again and contacting with the product. Alternatively, the number of the springs 60 may be provided in plural, and the springs may be evenly distributed between the flow channel plate 20 and the front mold core 10 to ensure that the flow channel plate 20 is stably supported after the flow channel plate 20 moves away from the front mold core 10, and of course, the number of the springs 60 may be set according to actual requirements, and is not limited herein.

Alternatively, in an embodiment, referring to fig. 5, 7 and 11, a first spring groove 104 is formed on the front mold core 10 at a side close to the runner plate 20, and an end of the spring 60 close to the front mold core 10 is received in the first spring groove 104; the runner plate 20 is provided with a second spring groove 203 on a side close to the front mold core 10, one end of the spring 60 close to the runner plate 20 is accommodated in the second spring groove 203, and the position of the first spring groove 104 corresponds to the position of the second spring groove 203. So set up, can carry on the spacing to the spring 60, guarantee its stability between flow channel plate 20 and front mould kernel 10. In other embodiments, only the first spring groove 104 or only the second spring groove 203 may be provided.

In one embodiment, referring to fig. 1, 7 and 10, the front core assembly 100 further includes a guide portion 70, the guide portion 70 is disposed on a side of the front core 10 away from the front mold cavity 101, and the runner plate 20 is provided with a guide hole 204 slidably engaged with the guide portion 70. Thus, the guide hole 204 is matched with the guide portion 70, so that the movement of the flow channel plate 20 relative to the front mold core 10 can be guided and limited, and the flow channel plate 20 can stably move. Specifically, the guide portion 70 may be a guide post.

Referring to fig. 12 to 16, the present invention further provides a three-plate mold 1000, wherein the three-plate mold 1000 includes the front core assembly 100 of any of the above embodiments, and a face plate 200, a gate plate 300, an a plate 400 and a B plate 500 sequentially disposed, the a plate 400 has a mounting cavity 410 penetrating therethrough, one side of the B plate 500 close to the a plate 400 is provided with a rear core 510, the front core 10 of the front core assembly 100 is fixed in the mounting cavity 410, the front mold cavity 101 of the front core 10 of the front core assembly 100 is matched with the rear core 510, and when the three-plate mold 1000 is in a mold-closing state, the front core 10 and the rear core 510 are fastened to form a cavity for molding a product; a first lock catch 40 is arranged on one side of the runner plate 20 of the front mold core assembly 100, which is far away from the front mold core 10 of the front mold core assembly 100, a first lock hole 3001 for being in inserted connection and matching with the first lock catch 40 is arranged on one side of the nozzle plate 300, which is close to the a plate 400, and an exhaust hole communicated with the first lock hole 3001 can be further formed on the nozzle plate 300; of course, in other embodiments, a first locking hole for mating with the first locking buckle 40 is disposed on a side of the nozzle plate 300 close to the a plate 400, and a first locking hole for mating with the first locking buckle 40 is disposed on a side of the runner plate 20 of the front core assembly 100 away from the front core 10 of the front core assembly 100; a second lock catch 210 is arranged on one side of the face plate 200 close to the water gap plate 300, a second lock hole 3002 for being in inserted connection and matching with the second lock catch 210 is arranged on one side of the water gap plate 300 close to the face plate 200, and an exhaust hole communicated with the second lock hole 3002 can be further formed on the water gap plate 300; of course, in some other embodiments, the second lock catch 210 may be disposed on a side of the nozzle plate 300 close to the face plate 200, and a second lock hole for mating with the second lock catch 210 is disposed on a side of the face plate 200 close to the nozzle plate 300. It can be understood by those skilled in the art that the three-plate mold has other conventional structures of the three-plate mold besides the above structure, and the present embodiment mainly describes the improvement of the three-plate mold 1000, that is, the cooperative relationship among the face plate 200, the gate plate 300, the a plate 400 and the front mold core assembly 100, and any structure of the existing three-plate mold can be adopted as the structure of the other three-plate mold, which is not described herein again.

The three-plate mold 1000 provided by the embodiment of the present application adopts the front core assembly 100 of the above embodiment, and thus, the technical effect of the above-mentioned front core assembly 100 is also achieved, when the three-plate mold 1000 is opened, the mold opening is performed between the nozzle plate 300 and the a plate 400, the nozzle plate 300 drives the runner plate 20 and the front mold insert 30 to move towards the side away from the front core 10 through the cooperation of the first lock catches 40 and the first lock holes 3001 relative to the front core 10, so that the front mold insert 30 can be drawn in advance relative to the front mold cavity 101, so that the front mold insert 30 is firstly separated from the product in the front mold cavity 101, thereby preventing the product in the front mold cavity 101 from adhering to the front mold insert 30, when the runner plate 20 moves to abut against the limiting portion 50 of the front core assembly 100, the runner plate 20 is resisted by the force, so that the first lock catches 40 are separated from the first lock catches 3001, and the runner plate 300 is separated from the runner plate 20, at this time, the spring 60 of the front mold core assembly 100 can support the runner plate 20, and prevent the runner plate 20 from moving in a direction close to the front mold core 10, thereby realizing the first drawing of the front mold insert 30, so that when the subsequent plate a and the plate B are opened, the product is not adhered to the front mold insert 30 and the front mold cavity 101, so that the demolding is easy, the product can be prevented from being pulled when the mold is opened due to adhesion to the front mold insert, the integrity of the product is ensured, the damage of the front mold cavity 101 to the three-plate mold is prevented, and the normal and efficient production of the three-plate mold is ensured; meanwhile, because the second lock catch 210 and the second lock hole 3002 are arranged between the face plate 200 and the runner plate 300, through the cooperation of the second lock catch 210 and the second lock hole 3002, the first mold opening of the face plate 200 and the runner plate 300 caused by the cooperation force of the first lock catch 40 and the first lock hole 3001 between the runner plate 20 and the runner plate 300 can be prevented, so that the correct mold opening sequence of the three-plate mold (the face plate is firstly opened with the plate a, the face plate is secondly opened with the runner plate, and the plate a is finally opened with the plate B) is ensured, and the cooperation between the face plate 200 and the runner plate 300 and between the runner plate 300 and the runner plate 20 are both provided with the lock catch and the lock hole cooperation force).

In one embodiment, referring to fig. 13, 14 and 16, the nozzle plate 300 includes a nozzle plate body 310 and a water-saving insert 320, the water-saving insert 320 is disposed on the nozzle plate body 310 near one side of the a plate 400 and is used for matching with the runner plate 20 of the front mold core assembly 100, that is, when the three-plate mold 1000 is in a mold-closed state, the water-saving insert 320 is fastened to the runner plate 20, specifically, the front mold core 10 is fixed to a lower portion of the mounting cavity 410, and an upper portion of the mounting cavity 410 forms a space into which the water-saving insert 320 can extend, so that when the three-plate mold is in the mold-closed state, the water-saving insert 320 can extend into the a plate 400 and match with the runner plate 20; the three-plate mold 1000 further comprises a sprue bush 600, a main runner is arranged inside the sprue bush 600, the sprue bush 600 is arranged on the panel 200, and the sprue bush 600 is arranged on the sprue plate body 310 and the water-saving sprue insert 320 in a penetrating manner and communicated with the branch runners 201 of the runner plate 20 of the front mold core assembly 100, so that fluid can reach the branch runners 201 through the sprue bush 600; the first lock catch 40 is disposed on the runner plate 20 of the front core assembly 100 on a side away from the front core 10 of the front core assembly 100, and the first lock hole 3001 is opened on the water saving port insert 320 on a side close to the a plate 400; of course, in other embodiments, the first locking device 40 may be disposed on the side of the water saving insert 320 close to the a plate 400, and the first locking hole may be opened on the side of the runner plate 20 of the front core assembly 100 away from the front core 10 of the front core assembly 100. So set up, cooperate with runner plate 20 through water-saving mouth insert 320, runner cover 600 wears to establish water gap plate body 310 and water-saving mouth insert 320 and is linked together with runner plate 20's branch runner 201, makes the mouth of a river length shorten, can save mouth of a river length, can save material.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The utility model provides a front mould benevolence subassembly, is applied to three board moulds on, three board moulds have a mouth of a river board and A board, and A board has the installation cavity that runs through it, its characterized in that, front mould benevolence subassembly includes:

the front die core is arranged in the mounting cavity of the plate A and is provided with a front die cavity and a through hole communicated with the front die cavity;

the runner plate is movably arranged on one side of the front mold core, which is deviated from the front mold cavity, and is provided with a branch runner; and

the front mold insert is arranged on the runner plate and penetrates through the runner plate and the through hole, a channel is arranged inside the front mold insert, one end of the channel is communicated with the branch runner, and the other end of the channel is communicated with the front mold cavity;

a first lock catch is arranged on one side, away from the front mold core, of the runner plate, and a first lock hole used for being matched with the first lock catch in an inserted mode is formed in one side, close to the A plate, of the water gap plate; or, one side of the runner plate close to the plate A is provided with a first lock catch, and one side of the runner plate, which is far away from the front mold core, is provided with a first lock hole which is used for being matched with the first lock catch on the runner plate in an inserting manner.

2. The insert assembly of claim 1, wherein: and a front mold groove is formed in one side of the front mold core, which deviates from the front mold cavity, and the runner plate is movably arranged in the front mold groove.

3. The insert assembly of claim 1, wherein the runner plate comprises:

a runner plate body, wherein a runner groove is arranged on one side of the runner plate body, which is far away from the front mold cavity, an insert mounting hole is arranged on the bottom wall of the runner groove, the insert mounting hole penetrates through the runner plate body and is communicated with the through hole, and one end of the front mold insert is detachably mounted in the insert mounting hole; and

and the runner pressing plate is detachably arranged in the runner groove and is pressed on the front mold insert.

4. The insert assembly of any one of claims 1 to 3, wherein: the front mold core assembly further comprises a limiting part, the limiting part is arranged on the front mold core in a protruding mode, the runner plate is movably limited between the front mold core and the limiting part, and a moving distance for the runner plate to move is reserved between the limiting part and the runner plate.

5. The insert core assembly of claim 4, wherein the runner plate has a limiting groove, and the limiting portion comprises:

the fixing section is fixed on the front mold core; and

the spacing section, spacing section connect in the canned paragraph, spacing section extends to in the spacing groove, just, spacing section with have the confession between the diapire of spacing groove the live distance of runner plate activity.

6. The insert assembly of any one of claims 1 to 3, wherein: the front die core assembly further comprises a spring, and the spring is arranged between the front die core and the runner plate.

7. The insert assembly of claim 6, wherein: a first spring groove is formed in one side, close to the runner plate, of the front mold core, and one end, close to the front mold core, of the spring is accommodated in the first spring groove; and/or a second spring groove is formed in one side, close to the front die core, of the runner plate, and one end, close to the runner plate, of the spring is accommodated in the second spring groove.

8. The insert assembly of any one of claims 1 to 3, wherein: the front mold core assembly further comprises a guide part, the guide part is convexly arranged on one side, deviating from the front mold cavity, of the front mold core, and a guide hole in sliding fit with the guide part is formed in the runner plate.

9. A three-plate die, comprising:

the die comprises a panel, a water gap plate, an A plate and a B plate which are sequentially arranged, wherein the A plate is provided with an installation cavity penetrating through the A plate, and one side of the B plate close to the A plate is provided with a rear die core; and

the front core assembly as claimed in any one of claims 1 to 8, wherein the front core of the front core assembly is fixed in the mounting cavity, and the front mold cavity of the front core assembly is matched with the rear mold core;

a first lock catch is arranged on one side, away from the front mold core of the front mold core assembly, of the runner plate of the front mold core assembly, and a first lock hole used for being matched with the first lock catch in an inserting mode is formed in one side, close to the plate A, of the water gap plate; or a first lock catch is arranged on one side, close to the plate A, of the water gap plate, and a first lock hole used for being matched with the first lock catch in an inserting mode is formed in one side, away from the front mold core of the front mold core assembly, of the runner plate of the front mold core assembly;

a second lock catch is arranged on one side, close to the water gap plate, of the panel, and a second lock hole used for being matched with the second lock catch in an inserted mode is formed in one side, close to the panel, of the water gap plate; or, be close to on the water gap board be equipped with the second hasp on one side of panel, be close to on the panel be used for with the second hasp complex second lockhole of pegging graft mutually is seted up to one side of water gap board.

10. A three-plate die according to claim 9, wherein the water gap plate comprises:

a spout plate body; and

the water saving port insert is arranged on one side, close to the plate A, of the water port plate body and is used for being matched with the runner plate of the front mold core assembly; the first lock is arranged on one side, deviating from the front mold core of the front mold core assembly, of the runner plate of the front mold core assembly, and the first lock hole is formed in one side, close to the plate A, of the water saving port insert; or the first lock catch is arranged on one side, close to the plate A, of the water-saving port insert, and the first lock hole is formed in one side, away from the front mold core of the front mold core assembly, of the runner plate of the front mold core assembly;

the three-plate mold further comprises a sprue bush, the sprue bush is arranged on the panel, the sprue bush penetrates through the sprue plate body and the water-saving sprue insert and is communicated with a branch runner of a runner plate of the front mold core assembly.

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