CN212472255U

CN212472255U - Deep cavity mold with zero draft angle

Info

Publication number: CN212472255U
Application number: CN202021360999.8U
Authority: CN
Inventors: 高国利; 陈敏通; 陈庆安; 袁林; 段志平
Original assignee: Shenzhen Silver Basis Technology Co Ltd
Current assignee: Changsha Yinbaoshan New Auto Parts Co ltd
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2021-02-05
Anticipated expiration: 2030-07-09

Abstract

The utility model provides a zero degree drawing of patterns angle deep cavity mould. The zero-degree draft angle deep cavity die comprises a rear die assembly and a front die assembly. The utility model discloses technical scheme is through seting up the cooling pipeline on preceding mould subassembly, when the die sinking, carries out rapid cooling for preceding mould subassembly through pouring into the coolant liquid into, utilizes to mould a high temperature to low temperature shrink principle, moulds the radial direction self-contraction certain distance that the piece can take place perpendicular die sinking direction to break away from the chamber wall of die cavity. And (3) continuing to open the mold at the tail end of the mold opening, continuously tightly wrapping the rear mold assembly after the plastic part is radially contracted, and separating from the front mold assembly to prevent the product from being dragged to cause damage and realize zero-degree demolding.

Description

Deep cavity mold with zero draft angle

Technical Field

The utility model relates to a mould equipment technical field, in particular to zero degree drawing of patterns angle deep cavity mould.

Background

Injection molding processes are widely used to produce parts that are low cost and relatively complex. One benefit of injection molding is its ability to produce large quantities of the same parts. However, the injection molding process requires that the design of the workpiece (part) follow very specific criteria in order to achieve defect-free manufacturability. The injection molding process imposes certain constraints on the manufacturing process, such as uniform wall thickness, rounded corners, draft angle, and the like.

In a normal product, the surface of the product is required to have a certain draft angle, namely, a draft angle, which is a draft angle designed on two sides of a mold cavity for facilitating mold stripping. However, for zero draft angle products, it is already very difficult to demold in terms of molding, and the surface is easily damaged by pulling or is not seized and taken out.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a zero degree drawing of patterns angle deep cavity mould aims at solving zero draft angle product, has been very difficult drawing of patterns with regard to the shaping, and the surface is easily pulled and is damaged, perhaps is caught the technical problem who can not take out.

In order to achieve the above object, the utility model provides a deep chamber mould of zero degree drawing of patterns angle, the deep chamber mould of zero degree drawing of patterns angle includes:

the back mould component is arranged on the back mould component,

the front die assembly is arranged on the rear die assembly, a cavity with a zero draft angle is formed between the rear die assembly and the front die assembly, and a cooling pipeline is further arranged on the front die assembly;

when the front mold assembly and the rear mold assembly are far away from each other, cooling liquid is injected into the cooling pipeline to reduce the temperature of the front mold assembly, so that the surface of a product in the cavity is contracted and separated from the cavity wall of the cavity.

Preferably, the rear die assembly comprises a rear die and a rear die core mechanism, the rear die core mechanism is convexly arranged on the rear die, the front die assembly comprises a front die and a front die core mechanism, a die cavity is arranged at one end of the front die, facing the rear die core mechanism, the front die core mechanism is arranged on the front die, the front die core mechanism is positioned in the die cavity, and the front die is provided with the cooling pipeline;

when the rear die and the front die are opened, cooling liquid is injected into the cooling pipeline to reduce the temperature of the front die so that the surface of the product shrinks and is separated from the cavity wall of the die cavity.

Preferably, the front core mechanism comprises:

the hot nozzle insert penetrates through the front mold and extends into the mold cavity, the hot nozzle insert can be far away from or close to the front mold, an injection molding opening is formed in the hot nozzle insert, and the injection molding opening is communicated with the mold cavity;

the needle valve hot nozzle is arranged on the hot nozzle insert and is provided with a discharge hole communicated with the injection molding opening, and injection molding liquid is injected into the cavity through the discharge hole and the injection molding opening;

when the rear die and the front die are opened, the hot nozzle insert is far away from the front die, so that one end, facing the rear die, of the hot nozzle insert is separated from the product.

Preferably, one side of the hot nozzle insert facing the rear die is of a truncated cone-shaped structure, the diameter of the peripheral wall of the hot nozzle insert facing one side of the rear die is gradually reduced in the direction from the rear die to the front die, and the peripheral wall of the hot nozzle insert facing one side of the rear die is provided with at least one air outlet;

when the rear mold and the front mold are opened, the needle valve hot nozzle is far away from the front mold, and at least one air outlet is filled with gas.

Preferably, the clearance between the surface of the hot nozzle insert facing the rear die and the surface of the rear die core mechanism facing the hot nozzle insert is greater than or equal to 0.02 mm.

Preferably, the rear mold comprises a rear mold plate and a backing plate, the rear mold plate is arranged on the backing plate, the backing plate can be far away from or close to the rear mold plate, and the rear mold core mechanism comprises:

the rear mold core is arranged on the backing plate, penetrates through the rear mold plate and extends towards the front mold;

when the rear mold plate is abutted to the front mold, the rear mold core is located in the mold cavity, the mold cavity is formed among the rear mold plate, the backing plate, the front mold core mechanism and the cavity wall of the mold cavity, and when the mold is opened, the backing plate is far away from the rear mold plate so that the rear mold core is separated from the surface of the product.

Preferably, the rear mold core comprises:

the rear mold core body is arranged on the backing plate, penetrates through the rear mold plate and extends towards the front mold direction, and is provided with at least one ejection groove penetrating through the rear mold core body, and the ejection groove extends from the rear mold plate to the front mold direction;

the number of the inclined ejector rods is in one-to-one correspondence with the number of the ejection grooves, and the inclined ejector rods are slidably arranged in the ejection grooves;

after the rear mold core body is separated from the surface of the product, the inclined ejector rod slides towards the front mold so as to eject the product out of the rear mold core body.

Preferably, the rear mold further comprises:

a base plate;

the base plate is arranged on the bottom plate, the inclined ejector rod is arranged between the two square irons, the base plate is arranged at one end, away from the bottom plate, of the two square irons, and one end, away from the front die, of the inclined ejector rod is arranged on the bottom plate in a lifting mode.

Preferably, the rear mold further comprises:

the ejector plate is arranged on the bottom plate and positioned between the backing plate and the bottom plate, the ejector plate can be close to or far away from the backing plate, and one end of the inclined ejector rod, which is far away from the front die, is hinged to the ejector plate;

the guide rod penetrates through the ejector plate, and two ends of the guide rod are respectively connected with the bottom plate and the base plate.

Preferably, the surface of the ejector plate facing the base plate is provided with a limiting bulge.

The utility model discloses technical scheme is through seting up the cooling pipeline on preceding mould subassembly, when the die sinking, carries out rapid cooling for preceding mould subassembly through pouring into the coolant liquid into, utilizes to mould a high temperature to low temperature shrink principle, moulds the radial direction self-contraction certain distance that the piece can take place perpendicular die sinking direction to break away from the chamber wall of die cavity. And (3) continuing to open the mold at the tail end of the mold opening, continuously tightly wrapping the rear mold assembly after the plastic part is radially contracted, and separating from the front mold assembly to prevent the product from being dragged to cause damage and realize zero-degree demolding.

Drawings

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

Fig. 1 is a schematic structural view of an embodiment of the zero-degree draft angle deep cavity mold of the present invention;

fig. 2 is a schematic structural view of a front mold assembly according to an embodiment of the zero-degree draft angle deep cavity mold of the present invention;

FIG. 3 is a schematic view of the internal cross-sectional structure of FIG. 1;

FIG. 4 is an enlarged view of a portion of N1 in FIG. 3;

fig. 5 is a schematic structural view of a rear mold assembly of an embodiment of the zero-degree draft angle deep cavity mold of the present invention;

fig. 6 is a schematic structural diagram of a core-pulling mechanism according to an embodiment of the zero-degree draft angle deep cavity mold of the present invention.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a zero degree draft angle deep cavity mould 1000.

As shown in fig. 1 to 4, the zero-degree draft-angle deep cavity mold 1000 includes: a rear mold assembly 200 and a front mold assembly 100, wherein the front mold assembly 100 is arranged on the rear mold assembly 200, a cavity A with a zero draft angle is formed between the rear mold assembly 200 and the front mold assembly 100, and a cooling pipeline (not shown in the figure) is also arranged on the front mold assembly 100; when the front mold assembly 100 and the rear mold assembly 200 are far away from each other, cooling liquid is injected into the cooling pipeline to reduce the temperature of the front mold assembly 100, so that the surface of a product in the cavity A is contracted and separated from the cavity wall of the cavity A.

When an injection molding product is subjected to injection molding, in order to release the molding from a mold, the surface of the demolding direction is usually changed into an inclined surface of 1-3 degrees to form a shape with a large lower part and a small upper part, so that the molding can be better separated from the mold, and for the injection molding product with a zero draft angle, such as a cylinder type router, the side edge of the cylinder type router has a 0-degree draft angle.

In view of this, the utility model discloses a cavity A of zero draft angle is formed between back mould subassembly 200 and the preceding mould subassembly 100 to keep away from each other through preceding mould subassembly 100 and back mould subassembly 200 and carry out the die sinking, design into the drawing of patterns operation of direct preceding mold core demolding.

It can be understood that the utility model discloses a cavity A can mould plastics the lateral wall product that has vertical angle, consequently, cavity A's shape can be cylinder shape or cuboid shape to mould plastics out drum shape product or cubic shape product.

In order to facilitate demolding, a cooling pipeline is arranged on the front mold assembly 100 and can surround the surface of the front mold assembly 100 or be arranged inside the front mold assembly 100, so that when the mold is opened, the front mold assembly 100 is rapidly cooled by injecting cooling liquid, and by utilizing the principle that a plastic part contracts from high temperature to low temperature, the plastic part can contract for a certain distance in the radial direction perpendicular to the mold opening direction to be separated from the cavity wall of the cavity A. And (3) continuing opening the mold at the end of opening the mold, continuously tightly wrapping the rear mold assembly 200 after the plastic part shrinks radially, and separating from the front mold assembly 100 to prevent the product from being dragged to cause damage, thereby realizing zero-degree demolding.

It can be understood that, assuming that the product is in a cylindrical shape and made of ABS and PC plastics, the shrinkage rate of the ABS and PC plastics is 0.5%, the surface of the product can shrink in the radial direction of the product after being cooled by utilizing the principle that the plastics can shrink from high temperature to low temperature, and the zero-degree demoulding can be realized without setting a drawing angle after the depth dimension is shrunk.

Specifically, the rear mold assembly 200 includes a rear mold and a rear mold core mechanism, the rear mold core mechanism is convexly disposed on the rear mold, the front mold assembly 100 includes a front mold 110 and a front mold core mechanism 120, a mold cavity B is disposed at one end of the front mold 110 facing the rear mold core mechanism, the front mold core mechanism 120 is disposed on the front mold 110, the front mold core mechanism 120 is located in the mold cavity B, and the front mold 110 is provided with the cooling pipeline; when the rear die and the front die 110 are opened, cooling liquid is injected into the cooling pipeline to reduce the temperature of the front die 110, so that the surface of the product is shrunk and separated from the cavity wall of the die cavity B.

In the present embodiment, the front core mechanism 120 is disposed in the cavity B, for example, the cavity B is set to be a round hole shape. And the front core mechanism 120 is disposed on the cavity wall of the cavity B away from the rear core mechanism to facilitate injection molding to form the bottom of the product, for example, the bottom of a cylinder of cylindrical products. When the rear die and the front die 110 are closed, the rear die core mechanism extends into the die cavity B, the die cavity A is formed between the rear die core mechanism, the front die core mechanism 120 and the cavity wall of the die cavity B, after injection molding is completed, the rear die and the front die 110 need to be opened, at the moment, cooling liquid is injected into a cooling pipeline, so that the temperature of the front die 110 is quickly reduced, the surface of a product is enabled to contract for a certain distance by self, the surface of the product is separated from the cavity wall of the die cavity B, so that the product is conveniently separated from the die cavity B in a follow-up mode, the surface of the product is ensured not to be damaged, and the.

Specifically, the front mold core mechanism 120 includes: the hot nozzle insert 121 penetrates through the front mold 110 and extends into the mold cavity B, the hot nozzle insert 121 may be far away from or close to the front mold 110, an injection port (not labeled in the figure) is formed in the hot nozzle insert 121, and the injection port is communicated with the mold cavity B; the needle valve hot nozzle 122 is arranged on the hot nozzle insert 121, the needle valve hot nozzle 122 is provided with a discharge hole (not marked in the figure), the discharge hole is communicated with the injection port, and the needle valve hot nozzle 122 injects injection liquid into the cavity A through the discharge hole and the injection port; when the rear mold and the front mold 110 are opened, the hot nozzle insert 121 is away from the front mold 110, so that one end of the hot nozzle insert 121 facing the rear mold is separated from the product.

In this embodiment, in order to facilitate demolding of the front mold assembly 100, a hot nozzle insert 121 may be disposed, the hot nozzle insert 121 penetrates through the front mold 110 and extends into the mold cavity B toward the rear mold direction, the hot nozzle insert 121 may be far away from or close to the front mold 110 through a cylinder or the like, the mold cavity B of the injection port on the hot nozzle insert 121 is communicated, the needle valve hot nozzle 122 is fixed on the hot nozzle insert 121, and a discharge port of the needle valve hot nozzle 122 is communicated with the injection port, so that the needle valve hot nozzle 122 injects injection liquid into the mold cavity a through the discharge port and the injection port during injection. According to the structural requirements of the mold, the glue is fed by using a valve type hot nozzle (namely a needle valve hot nozzle 122), so that the filling balance adjustment is facilitated, the valve needle has a check switch function and is used for preventing plastic from flowing back into the injection molding machine, and meanwhile, the glue inlet of the needle valve type hot nozzle is smooth, has no residual water gap and has better appearance;

secondly, the shrinkage of the plastic material (such as PC + ABS) is 0.05%, the fluidity is general, and the hot runner system is adopted to facilitate the filling of the cavity A.

In addition, setting the rear mold assembly 200 below the front mold assembly 100 and having the gate for injecting the product disposed at the top of the product, i.e., the gate is located at the top of the front mold 110, the needle valve thermal nozzle 122 is a nozzle with a needle valve, and a good effect of filling the cavity a can be achieved.

It can be understood that the front mold 110 includes a face plate 111, a shovel base 112 and a front mold plate 113, a sliding groove is formed on the front mold plate 113, one end of the shovel base 112 is fixed on the face plate 111, the other end of the shovel base 112 is slidably disposed in the sliding groove, the front mold plate 113 is provided with a mold cavity B, the needle valve hot nozzle 122 and the hot nozzle insert 121 are both fixedly disposed on the face plate 111, and the hot nozzle insert 121 penetrates through the front mold plate 113, so that the hot nozzle insert 121 and the needle valve hot nozzle 122 can be simultaneously far away from or close to the front mold plate 113 by driving the face plate 111, which facilitates the demolding operation of the front mold assembly 100.

Specifically, the hot nozzle insert 121 is in a truncated cone shape towards the rear mold, the diameter of the hot nozzle insert 121 towards the circumferential wall of the rear mold is gradually reduced in the direction from the rear mold to the front mold 110, and at least one air outlet is formed in the circumferential wall of the hot nozzle insert 121 towards the rear mold; when the rear mold and the front mold 110 are opened, the needle valve hot nozzle 122 is far away from the front mold 110, and gas is injected into at least one gas outlet. In this embodiment, since the interior of the mold is not vented to atmosphere, the product will be scratched when the right-angle rear mold assembly 200 is removed from the mold, therefore, one end of the hot nozzle insert 121 facing the rear mold is set to be a truncated cone structure, and the air outlet is opened on the peripheral wall of one end of the hot nozzle insert 121 facing the rear mold, when the mold is opened, one end of the hot nozzle insert 121 facing the rear mold is separated from the product, a small gap is formed between the peripheral wall of one end of the hot nozzle insert 121 facing the rear mold and the front mold 110, high-pressure air in the air outlet is injected into the mold cavity B, because the relatively closed cavity A is arranged in the die, the interior is easy to form a vacuum environment which can be subjected to atmospheric pressure, so that the product and the cavity wall of the cavity A are firmly sucked, high-pressure air is introduced, the vacuum environment of the cavity A can be damaged, and the product is effectively prevented from being adhered to the cavity walls of the hot nozzle insert 121 and the cavity B.

It is understood that the high pressure air may be air at normal room temperature or cold air, and the pressure of the high pressure air is set according to the thickness of different products, which is not limited herein.

Specifically, a gap between a surface of the hot nozzle insert 121 facing the rear mold and a surface of the rear mold core mechanism facing the hot nozzle insert 121 is greater than or equal to 0.02 mm. In this embodiment, a gap between the surface of the hot nozzle insert 121 facing the rear mold and the surface of the rear mold core mechanism facing the hot nozzle insert 121 is greater than or equal to 0.02mm, and after high-pressure air is blown into the cavity a, the product is released by using the product, and the product can be prevented from being sucked by internal vacuum.

Specifically, the rear mold comprises a rear mold plate 211 and a backing plate 212, the rear mold plate 211 is disposed on the backing plate 212, the backing plate 212 may be far away from or close to the rear mold plate 211, and the rear mold core mechanism includes: the rear mold core 220 is arranged on the backing plate 212, and the rear mold core 220 penetrates through the rear mold plate 211 and extends towards the front mold 110; when the rear mold plate 211 abuts against the front mold 110, the rear mold core 220 is located in the mold cavity B, the mold cavity a is formed among the rear mold plate 211, the backing plate 212, the front mold core mechanism 120 and the cavity wall of the mold cavity B, and when the mold is opened, the backing plate 212 is far away from the rear mold plate 211, so that the rear mold core 220 is separated from the surface of the product.

In this embodiment, the rear mold core 220 is fixed on the backing plate 212, the rear mold core 220 is protruded, when the rear mold plate 211 abuts against the front mold 110, the rear mold core 220 is located in the mold cavity B, the mold cavity a is formed among the rear mold plate 211, the backing plate 212, the front mold core mechanism 120 and the cavity wall of the mold cavity B, after one end of the hot nozzle insert 121 facing the rear mold is separated from the product, the backing plate 212 can be driven to be away from the rear mold plate 211, and the rear mold core 220 penetrates through the rear mold plate 211, so that the rear mold core 220 is separated from the surface of the product, so as to facilitate the subsequent demolding operation.

Specifically, the rear mold core 220 includes: the rear mold core body 221 is arranged on the backing plate 212, the rear mold core body 221 penetrates through the rear mold plate 211 and extends towards the front mold 110, at least one ejection slot (not marked in the figure) penetrating through the rear mold core body 221 is formed in the rear mold core body 221, and the ejection slot extends from the rear mold plate 211 to the front mold 110; the number of the inclined ejector rods 222 is in one-to-one correspondence with the number of the ejection grooves, and the inclined ejector rods 222 are slidably arranged in the ejection grooves; after the rear mold core body 221 is separated from the surface of the product, the inclined ejector rod 222 slides towards the front mold 110 to eject the product out of the rear mold core body 221.

In this embodiment, in order to facilitate the product to be separated from the rear mold core body 221 entirely, at least one ejection groove (not labeled in the drawing) may be formed on the rear mold core body 221, and the ejection groove is in sliding fit with the inclined ejector rod 222, and it can be understood that, during injection molding, the inclined ejector rod 222 fills the entire ejection groove to form a complete injection mold core with the rear mold core body 221; however, when the mold is opened, the inclined ejector rod 222 is displaced towards the front mold 110, so that the inclined ejector rod 222 extends to the outside of the rear mold core body 221 and extends to the front mold 110, and the product is ejected out of the rear mold core body 221, thereby realizing complete demolding of the product.

Specifically, the rear mold further includes: a base plate 213; at least two square irons 214, at least two square irons 214 are arranged on the bottom plate 213 at intervals, the inclined mandril 222 is positioned between the two square irons 214, the backing plate 212 is arranged at one end of the two square irons 214 far away from the bottom plate 213, and one end of the inclined mandril 222 far away from the front mold 110 is arranged on the bottom plate 213 in a lifting manner. In this embodiment, the backing plate 212 is fixed on the bottom plate 213 through two square irons 214 arranged at intervals, the inclined post rod 222 is located between the two square irons 214, and one end of the inclined post rod 222 away from the front mold 110 is arranged on the bottom plate 213 in a lifting manner. When the mold is opened, the inclined ejector rod 222 can be driven by the cylinder to move towards the front mold 110, so that the inclined ejector rod 222 extends to the outside of the rear mold core body 221 and extends towards the front mold 110 to eject a product out of the rear mold core body 221, and complete demolding of the product is realized. Besides, the position of the lifter 222 on the rear mold core body 221 can be limited by limiting the distance of the square iron 214 in the mold opening direction.

Specifically, the rear mold further includes: the ejector plate 215 is arranged on the bottom plate 213, the ejector plate 215 is positioned between the backing plate 212 and the bottom plate 213, the ejector plate 215 can be close to or far away from the backing plate 212, and one end of the inclined ejector rod 222 far away from the front mold 110 is hinged on the ejector plate 215; and the guide rod 216 penetrates through the ejector plate 215, and two ends of the guide rod 216 are respectively connected with the bottom plate 213 and the backing plate 212. In this embodiment, in order to facilitate driving the oblique ejector rod 222 to move, an ejector plate 215 may be disposed between the backing plate 212 and the bottom plate 213, one end of the oblique ejector rod 222 away from the front mold 110 is hinged to the ejector plate 215, the guide rod 216 penetrates through the ejector plate 215, and two ends of the guide rod 216 are respectively connected to the bottom plate 213 and the backing plate 212. When the mold is opened, the ejector plate 215 can be driven by the cylinder to move towards the front mold 110, and the oblique ejector rods 222 are synchronously driven to move towards the front mold 110 until one ends of the oblique ejector rods 222, which are far away from the bottom plate 213, abut against the product, and eject the product out of the rear mold core body 221, so that the complete demolding of the product is realized. Because the mould itself has heavier weight, consequently, guide bar 216 can play thimble board 215 in the guide effect of drawing of patterns direction, improves thimble board 215 drawing of patterns motion's stability, and after drawing of patterns is accomplished, also can make thimble board 215 accurate reset.

Specifically, a limiting protrusion 217 is disposed on a surface of the ejector plate 215 facing the backing plate 212. In this embodiment, the limiting protrusion 217 may be composed of a plurality of bolts, for example, the bolts may be screwed into the surface of the ejector plate 215 facing the backing plate 212, so that a limiting gap is left between the head of the bolt and the ejector plate 215, and the ejector plate 215 is driven by an air cylinder to move toward the front mold 110 until the limiting protrusion 217 abuts against the backing plate 212, so as to limit the limit distance of the displacement of the lifter bar 222, prevent the lifter bar 222 from ejecting too much displacement, and improve the accuracy of demolding.

As shown in fig. 2, 3 and 6, specifically, the core pulling structure includes a front mold assembly 100, where the front mold assembly 100 includes: a front mold plate 113, wherein the front mold plate 113 is provided with a mold cavity B located in a first direction (e.g., an X-axis direction in fig. 3) and at least one coring hole (not labeled) located in a second direction (e.g., a Y-axis direction in fig. 3), the at least one coring hole is communicated with the mold cavity B, the first direction is perpendicular to the second direction, the front mold plate 113 is further provided with a sliding groove (not labeled) located in the first direction, and the sliding groove is communicated with the coring hole; the core pulling mechanisms 130 are arranged in a one-to-one correspondence manner, the number of the core pulling mechanisms 130 is equal to that of the core pulling holes, and the core pulling mechanisms 130 are arranged in the core pulling holes in a sliding manner; the panel 111, the panel 111 mechanism set up in on the front bezel 113, the panel 111 orientation the one end of front bezel 113 is provided with an at least shovel base 112, the quantity of shovel base 112 with the quantity one-to-one setting of sliding tray, shovel base 112 set up in the sliding tray, just shovel base 112 orientation the one end of mechanism 130 of loosing core with the mechanism 130 block of loosing core is connected, in order to restrict mechanism 130 of loosing core is in the downthehole position of loosing core.

In this embodiment, the front mold assembly 100 includes a panel 111, a shovel base 112 and a front mold plate 113, the front mold plate 113 is provided with a sliding groove, one end of the shovel base 112 is fixed on the panel 111, the other end of the shovel base 112 is slidably disposed in the sliding groove, the front mold plate 113 is provided with a mold cavity B, the core pulling mechanism 130 is slidably disposed in the core pulling hole, and a complete injection mold cavity wall is formed between the surface of the core pulling mechanism 130 facing the mold cavity B and the cavity wall of the mold cavity B, so that before injection molding, the core pulling mechanism 130 needs to be fixed, after injecting high-temperature and high-pressure injection molding liquid, the core pulling mechanism 130 can be prevented from being displaced to cause product defects, for this reason, the panel 111 mechanism is disposed on the front mold plate 113, the shovel base 112 on the panel 111 is inserted into the sliding groove, so that the shovel base 112 and the core pulling mechanism 130 are connected in a clamping manner, so as to limit the position of the core pulling, the assembly process is simplified.

Specifically, the core pulling mechanism 130 includes: the sliding block 131 is arranged in the core-pulling hole in a sliding manner, and a limiting groove C is formed in one end, facing the shovel base 112, of the sliding block 131; a driving member 132, wherein the driving member 132 is disposed on the front mold plate 113, and the driving member 132 is used for driving the sliding block 131 to move back in the second direction; when the panel 111 abuts against the front mold plate 113, one end of the shovel base 112, which is far away from the front mold plate 113, is disposed in the limiting groove C. As an alternative embodiment, a separate slide block 131 may be provided as an insert, in order to limit the position of the slide block 131, a limit groove C may be formed in the slide block 131, a notch of the limit groove C faces the shovel base 112, the driving member 132 is fixed to the front mold plate 113 and is used for driving the slide block 131 to slide in the second direction, and when the panel 111 abuts against the front mold plate 113, one end of the shovel base 112 away from the front mold plate 113 is disposed in the limit groove C.

Specifically, the core pulling mechanism 130 further includes: first wearing parts 133, first wearing parts 133 set up in the spacing groove C, first wearing parts 133 towards the surface of driving piece 132 is inclined plane D, certainly slider 131 extremely in the direction of front template 113, inclined plane D extremely interval between the chamber wall of die cavity B reduces gradually, shovel base 112 keeps away from one side of front template 113 is provided with butt inclined plane E, shovel base 112 keeps away from front template 113's one end sets up in spacing groove C back, butt inclined plane E with inclined plane D butt. In this embodiment, in order to prevent the sliding block 131 from being damaged due to long-term abutment with the shovel base 112, a first wear-resistant member 133 may be disposed in the limiting groove C, a surface of the first wear-resistant member 133 facing the driving member 132 is an inclined surface D, an abutment inclined surface E is disposed on a side of the shovel base 112 away from the front mold plate 113, and the abutment of the abutment inclined surface E and the inclined surface D is used to limit a position of the sliding block 131 in the core hole. When the first wear-resistant part 133 is damaged, only the first wear-resistant part 133 needs to be replaced, the sliding block 131 does not need to be replaced, and the maintenance cost is reduced.

Specifically, in the direction from the sliding block 131 to the front mold plate 113, the cross section of the limiting groove C is in an L-shaped structure. As an alternative embodiment, the cross section of the limiting groove C is in an L-shaped structure, so that the limiting groove C can be conveniently machined.

Specifically, one side of shovel base 112, far away from front template 113, is provided with wear-resisting breach, front mould subassembly 100 includes: a second wear member 1121, the second wear member 1121 being disposed within the wear notch. In this embodiment, in order to prevent the shovel base 112 from being damaged due to long-term friction with the wall of the sliding groove, a wear-resistant notch may be disposed on a side of the shovel base 112 away from the front mold plate 113, and the second wear-resistant part 1121 is disposed in the wear-resistant notch. When the second wear-resistant member 1121 is damaged, only the second wear-resistant member 1121 needs to be replaced, and the shovel base 112 does not need to be replaced, so that the maintenance cost is reduced.

Specifically, at least one guide groove F is disposed on the sliding block 131, a length direction of the guide groove F is parallel to the second direction, and the core pulling mechanism 130 further includes: at least one guide block 134, at least one guide block 134 set up in the hole of loosing core, the quantity of guide block 134 with the quantity one-to-one setting of guide way F, guide block 134 slide set up in the guide way F. In this embodiment, in order to improve the sliding stability of the slider 131, at least one guide groove F may be disposed on the slider 131, at least one guide block 134 may be fixedly disposed in the core pulling hole, the guide block 134 is slidably disposed in the guide groove F, and the slider 131 is driven by the driving element 132 to slide along the direction of the guide groove F.

The above only is the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.

Claims

1. The utility model provides a zero degree draft angle deep cavity mould which characterized in that, zero degree draft angle deep cavity mould includes:

the back mould component is arranged on the back mould component,

2. The zero degree draft angle deep cavity mold according to claim 1, wherein said rear mold assembly comprises a rear mold and a rear mold core mechanism, said rear mold core mechanism is convexly disposed on said rear mold, said front mold assembly comprises a front mold and a front mold core mechanism, said front mold is provided with a mold cavity toward an end of said rear mold core mechanism, said front mold core mechanism is disposed on said front mold, said front mold core mechanism is located in said mold cavity, said front mold is provided with said cooling duct;

3. The zero degree draft angle deep cavity mold of claim 2, wherein said front core mechanism comprises:

4. The zero degree release angle deep cavity mold according to claim 3, wherein the hot tip insert has a truncated cone shape toward the rear mold, the diameter of the peripheral wall of the hot tip insert toward the rear mold gradually decreases in a direction from the rear mold to the front mold, and the peripheral wall of the hot tip insert toward the rear mold is provided with at least one vent hole;

5. The zero degree draft angle deep cavity mold according to claim 4, wherein a gap between a surface of said hot tip insert facing said back mold and a surface of said back core mechanism facing said hot tip insert is 0.02mm or more.

6. The zero degree draft angle deep cavity mold according to claim 2, wherein said rear mold comprises a rear mold plate and a backing plate, said rear mold plate is disposed on said backing plate, and said backing plate is far from or close to said rear mold plate, said rear mold core mechanism comprises:

7. The zero degree draft angle deep cavity mold of claim 6, wherein said rear core comprises:

8. The zero degree draft angle deep cavity mold according to claim 7, wherein said rear mold further comprises:

a base plate;

9. The zero degree draft angle deep cavity mold of claim 8, wherein said rear mold further comprises:

10. The zero degree draft angle deep cavity mold according to claim 9, wherein said ejector plate is provided with a stopper protrusion on a surface facing said tie plate.