CN215661604U

CN215661604U - Oblique core-pulling demoulding device for ejection core of injection mould

Info

Publication number: CN215661604U
Application number: CN202121842066.7U
Authority: CN
Inventors: 谭中奇; 俞萌萌; 王军; 方刚
Original assignee: Changzhou Conceptech Moulding Technology Co ltd
Current assignee: Changzhou Conceptech Moulding Technology Co ltd
Priority date: 2021-08-07
Filing date: 2021-08-07
Publication date: 2022-01-28
Anticipated expiration: 2031-08-07

Abstract

The utility model discloses an injection mould core-ejecting inclined core-pulling demoulding device, which comprises an upper mould and an injection opening, wherein the injection opening is arranged at the top end of the upper mould, the bottom end of the upper mould is provided with a lower mould, the front end of the lower mould is provided with a plurality of groups of air inlets, the air inlets are communicated with the interior of the lower mould, when the mould is removed, firstly, an inclined guide post in the upper mould can be separated from a positioning hole, positioning blocks at two sides can move towards two sides due to retraction of a spring, the fixing effect between the upper mould and the lower mould is cancelled, then, a user can be externally connected with an air source, high-pressure air is introduced into the bottom of a core column through the air inlets and an air passage, after the bottom of a top shaft in the core column is subjected to pressure, the second spring is upwards extruded, a pressing block at the top end of the second spring is upwards ejected, after the use, the externally connected air source can be closed, the second spring pulls the core column and the pressing block to the original position, and is convenient for the next use of the user, the demolding speed is high, and the integrity of the product is improved.

Description

Oblique core-pulling demoulding device for ejection core of injection mould

Technical Field

The utility model relates to the field of demoulding devices, in particular to an injection mould ejection core inclined core pulling demoulding device.

Background

In injection molding, need use injection mold to finalize the design, the part that general structure is complicated need adopt the assembling die to process, and present most assembling die adopts different drive element drive compound dies respectively to lead to the mould structure great, the cost is higher, and partial assembling die adopts the mould of the mechanism of loosing core to one side.

In chinese patent CN201610856068.9, a synchronous linkage demoulding device for straight-top core and inclined core pulling of injection mould is introduced, wherein the straight-top core block is provided with a convex surface for inverted buckling of a molded product, and the straight-top core block is also provided with a straight ejector rod; the inclined core pulling block is provided with a concave surface for reversely buckling the molded product, and is also provided with an inclined ejector rod and a sliding foot; the straight core block and the inclined core-pulling block are combined and positioned in a placement groove of the movable mold core, and the convex surface and the concave surface jointly enclose a mold cavity for forming the inverted buckle of the product; the lower end of the straight ejector rod is fixedly connected with the top plate, and the lower end of the inclined ejector rod is connected with the top plate in a sliding manner through a sliding foot, so that the lower end of the inclined ejector rod is found in the actual operation process of a person skilled in the art; different moulds are controlled through the oblique guide pillar and the oblique guide hole in a matched mode, the mould volume and the number of driving elements are reduced, cost is reduced, and when the existing partial oblique core-pulling mould is used, the oblique guide pillar and the oblique guide hole are easy to clamp, so that the mould closing use of the mould is influenced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects that when a part of inclined core-pulling moulds in the prior art are used, an inclined guide post and an inclined guide hole are easy to clamp, the mould closing use of the mould is influenced, and the integrity of demoulding is poor, the utility model provides the inclined core-pulling demoulding device for the ejection core of the injection mould.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides an injection mold knockout core shedder of loosing core to one side, includes the mould and moulds plastics the mouth, the mouth of moulding plastics sets up in the top of last mould, the bottom of going up the mould is provided with the bed die, the multiunit air inlet has been seted up to the front end of bed die, air inlet and the inside intercommunication of bed die, including support plate and stem in the bed die, the stem sets up in the inside top of bed die, the top of stem is provided with the trapezoidal dead slot structure of inversion, and the top of dead slot structure is provided with the terrace die, the cavity has been seted up to the bottom of stem, be provided with the apical axis in the cavity, the bottom cover of apical axis is equipped with the roof, the top of apical axis is provided with the briquetting, the outer wall winding of apical axis in the cavity is fixed with first spring, the both ends of first spring respectively with the bottom of cavity and the top fixed connection of roof.

According to a preferable technical scheme, two sides of the top end of the lower die are respectively provided with a groove structure, each groove structure is internally provided with a positioning block, one side of each positioning block is provided with a transverse cavity, a second spring is arranged in each transverse cavity, the other end of each second spring is fixedly connected with the side wall of each transverse cavity, the other end of each second spring is fixed with the side wall of a fixing bolt, the fixing bolts are arranged at two ends of the carrier plate, the front end of each positioning block is provided with a fixing block structure, the opposite surfaces of the positioning blocks and the fixing blocks are both inclined surface structures, and the positioning holes are formed by the two groups of inclined surface structures.

As a preferable technical scheme of the utility model, the output end of each group of air inlets is communicated with an air passage, and the tail end of the air passage is communicated with the bottom end of the core column.

As a preferable technical scheme of the utility model, the pressing block and the male die are on the same horizontal line.

As a preferable technical scheme of the utility model, the two sides of the bottom end of the upper die are respectively provided with an inclined guide post, the outer side of each inclined guide post is provided with a positioning groove, the middle part of the bottom end of the upper die is provided with a forming cavity, and the size of the forming cavity is matched with that of the male die.

As a preferred technical solution of the present invention, the bottom end of the positioning hole is provided with an auxiliary hole structure, and the auxiliary hole structure is provided at the bottom end of the positioning block.

As a preferable technical scheme of the utility model, a plurality of groups of positioning columns are arranged at the edge of the bottom end of the upper die, and the positioning columns are matched with the size of the holes formed at the top end of the upper die.

Compared with the prior art, the utility model can achieve the following beneficial effects:

in the utility model, through the arranged lower die structure, a user matches and fixes the upper die and the lower die during operation, when the die is removed, the inclined guide post in the upper die can be separated from the positioning hole, the positioning blocks at two sides can move towards two sides due to the retraction of the spring, the fixing effect between the upper die and the lower die is cancelled, then the user can be externally connected with an air source, high-pressure air is introduced into the bottom of the core column through the air inlet and the air passage, the bottom of the top shaft in the core column upwards extrudes the second spring after being pressurized, and the pressing block at the top end is upwards jacked up, because the size of the core column is smaller than that of the pressing block, the air in the core column can be sprayed out from the top end through the cavity and the gaps at two sides of the pressing block, the injection molding structure attached to the male die is demouldered, after the use, the externally connected air source can be closed, and the core column and the pressing block are pulled back by the second spring to the original position, the convenient user uses next time, and the drawing of patterns is fast, has improved the integrality of product.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic view of the structure at A in FIG. 2;

fig. 4 is a schematic structural diagram at B in fig. 2.

Wherein: 1. an upper die; 11. a positioning column; 12. an inclined guide post; 13. a molding cavity; 14. positioning a groove; 2. An injection molding port; 3. a lower die; 31. a carrier plate; 311. a transverse cavity; 312. positioning holes; 32. a stem; 321. a cavity; 33. a top shaft; 331. a top plate; 332. briquetting; 333. a first spring; 34. a second spring; 35. fixing the bolt; 36. positioning blocks; 4. an air inlet; 41. an airway.

Detailed Description

The present invention will be further described with reference to specific embodiments for the purpose of facilitating an understanding of technical means, characteristics of creation, objectives and functions realized by the present invention, but the following embodiments are only preferred embodiments of the present invention, and are not intended to be exhaustive. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Example (b):

as shown in fig. 1-4, the utility model provides an injection mold core-ejecting inclined core-pulling demolding device, which comprises an upper mold 1 and an injection port 2, wherein the injection port 2 is arranged at the top end of the upper mold 1, a lower mold 3 is arranged at the bottom end of the upper mold 1, a plurality of groups of air inlets 4 are arranged at the front end of the lower mold 3, the air inlets 4 are communicated with the inside of the lower mold 3, the lower mold 3 comprises a carrier plate 31 and a core column 32, the core column 32 is arranged at the top end of the inside of the lower mold 3, the top end of the core column 32 is provided with an inverted trapezoidal hollow groove structure, and the top end of the empty groove structure is provided with a convex die, the bottom end of the core column 32 is provided with a cavity 321, a top shaft 33 is arranged in the cavity 321, the bottom end of the top shaft 33 is sleeved with a top plate 331, the top end of the top shaft 33 is provided with a press block 332, the outer wall of the top shaft 33 in the cavity 321 is wound and fixed with a first spring 333, and two ends of the first spring 333 are respectively fixedly connected with the bottom end of the cavity 321 and the top end of the top plate 331 to form the core column 32 structure.

The person of facilitating the use passes through pneumatic mode, with the apical axis 33 jack-up of injection molding cooperation bottom, convenient and fast, the practicality is strong.

In other embodiments, the two sides of the top end of the lower mold 3 are both provided with a groove structure, and each group of groove structures is provided with a positioning block 36, one side of each group of positioning blocks 36 is provided with a transverse cavity 311, a second spring 34 is arranged in the transverse cavity 311, the other end of the second spring 34 is fixedly connected with the side wall of the transverse cavity 311, the other end of the second spring 34 is fixed with the side wall of the fixing bolt 35, the fixing bolt 35 is arranged at the two ends of the carrier plate 31, the front end of the positioning block 36 is provided with a fixing block structure, the opposite surfaces of the positioning block 36 and the fixing block are both inclined plane structures, and the positioning holes 312 are formed by the two groups of inclined plane structures.

Through the structure of the lower die 3, when a user operates, the upper die 1 and the lower die 3 are matched and fixed, when the die is removed, firstly, the inclined guide post 12 in the upper die 1 can be separated from the positioning hole 312, the positioning blocks 36 on two sides can move towards two sides due to the retraction of the spring, the fixing effect between the upper die 1 and the lower die 3 is cancelled, then, the user can be externally connected with an air source, high-pressure air is introduced into the bottom of the core column 32 through the air inlet 4 and the air passage 41, the bottom of the top shaft 33 in the core column 32 upwards extrudes the second spring 34 after being subjected to pressure, and the pressing block 332 at the top end is upwards jacked up, because the size of the core column 32 is smaller than that of the pressing block 332, the air in the core column 32 can be ejected from the top end through gaps on two sides of the cavity 321 and the pressing block 332, the injection molding structure attached to the die is removed, and after the use, the external air source can be closed, the second spring 34 pulls the core column 32 and the pressing block 332 back to the original position, so that the next use by a user is facilitated, the demoulding speed is high, and the integrity of the product is improved.

In other embodiments, the output end of each set of air inlets 4 is communicated with the air passage 41, and the end of the air passage 41 is communicated with the bottom end of the stem 32.

The gas is conveniently transmitted and is finally sprayed out from the top end of the core column 32, so that the effect of quick demoulding is achieved.

In other embodiments, the compact 332 is on the same horizontal line as the punch.

Guarantee the surface smoothness of injection molding, avoid appearing unedged phenomenon.

In other embodiments, the two sides of the bottom end of the upper die 1 are provided with the inclined guide pillars 12, the positioning groove 14 is formed in the outer side of each group of inclined guide pillars 12, the middle part of the bottom end of the upper die 1 is provided with the forming cavity 13, and the size of the forming cavity 13 is matched with that of the male die.

In other embodiments, the bottom end of the positioning hole 312 is provided with an auxiliary hole structure, and the auxiliary hole structure is opened at the bottom end of the positioning block 36.

The tail end of the inclined guide post 12 is protected and can go deep into the auxiliary hole, so that the structural integrity is improved.

In other embodiments, a plurality of sets of positioning pillars 11 are disposed at the bottom edge of the upper mold 1, and the positioning pillars 11 are adapted to the size of the holes formed at the top end of the upper mold 1.

The positioning column 11 is fixed with the hole in a clamping mode, so that the structural stability in the using process is improved, and the phenomenon of deflection is avoided.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an injection mold knockout core shedder of loosing core to one side, includes upper mold (1) and the mouth of moulding plastics (2), the mouth of moulding plastics (2) set up in the top of upper mold (1), its characterized in that: a lower die (3) is arranged at the bottom end of the upper die (1), a plurality of groups of air inlets (4) are arranged at the front end of the lower die (3), the air inlet (4) is communicated with the interior of the lower die (3), the lower die (3) comprises a carrier plate (31) and a core column (32), the core column (32) is arranged at the top end of the inner part of the lower die (3), the top end of the core column (32) is provided with an inverted trapezoidal hollow groove structure, the top end of the empty groove structure is provided with a convex die, the bottom end of the core column (32) is provided with a cavity (321), a top shaft (33) is arranged in the cavity (321), a top plate (331) is sleeved at the bottom end of the top shaft (33), a pressing block (332) is arranged at the top end of the top shaft (33), a first spring (333) is wound and fixed on the outer wall of the top shaft (33) in the cavity (321), two ends of the first spring (333) are respectively fixedly connected with the bottom end of the cavity (321) and the top end of the top plate (331).

2. The oblique knockout core shedder of injection mold ejector core according to claim 1, characterized in that: the die is characterized in that groove structures are arranged on two sides of the top end of the lower die (3), positioning blocks (36) are arranged in each groove structure, each groove structure is provided with a transverse cavity (311), each transverse cavity is formed in one side of each positioning block (36), a second spring (34) is arranged in each transverse cavity (311), the other end of each second spring (34) is fixedly connected with the side wall of each transverse cavity (311), the other end of each second spring (34) is fixed with the side wall of each fixing bolt (35), each fixing bolt (35) is arranged at two ends of each support plate (31), a fixing block structure is arranged at the front end of each positioning block (36), opposite surfaces of the positioning blocks (36) and the corresponding fixing blocks are inclined surface structures, and the positioning holes (312) are formed by two groups of inclined surface structures.

3. The oblique knockout core shedder of injection mold ejector core according to claim 2, characterized in that: the output end of each air inlet (4) is communicated with an air passage (41), and the tail end of the air passage (41) is communicated with the bottom end of the core column (32).

4. The oblique knockout core shedder of injection mold ejector core according to claim 2, characterized in that: the pressing block (332) and the male die are on the same horizontal line.

5. The oblique knockout core shedder of injection mold ejector core according to claim 1, characterized in that: the die is characterized in that oblique guide pillars (12) are arranged on two sides of the bottom end of the upper die (1), a positioning groove (14) is formed in the outer side of each oblique guide pillar (12), a forming cavity (13) is arranged in the middle of the bottom end of the upper die (1), and the size of the forming cavity (13) is matched with that of the male die.

6. The oblique knockout core shedder of injection mold ejector core according to claim 2, characterized in that: the bottom of locating hole (312) is provided with supplementary pore structure, and supplementary pore structure sets up in the bottom of locating piece (36).

7. The oblique knockout core shedder of injection mold ejector core according to claim 1, characterized in that: the die is characterized in that a plurality of groups of positioning columns (11) are arranged at the bottom end edge of the upper die (1), and the positioning columns (11) are matched with the sizes of holes formed in the top end of the upper die (1).