CN210061856U - Mold buckling position demolding structure - Google Patents

Abstract

The utility model provides a position demoulding structure is detained to mould, including lower mould, with last mould of lower mould compound die and assemble in last mould and detain position drawing of patterns subassembly with lower mould complex, it moulds plastics the space to go up to form between mould and the lower mould, it detains position drawing of patterns subassembly holding tank to go up the mould formation, detain position drawing of patterns subassembly holding tank and pass through the last mould lower surface downwards and communicate with the space of moulding plastics, it includes detains position drawing of patterns subassembly main part and spring member to detain position drawing of patterns subassembly main part, detain position drawing of patterns subassembly main part and hold in detaining position drawing of patterns subassembly holding tank, it includes downwardly extending cantilever form position bullet piece and the cantilever form that downwardly extending guide pin that resets to detain position drawing of patterns subassembly, spring member elasticity supports to press in detaining position drawing of patterns subassembly main part and applys a downward thrust for detaining position drawing of patterns subassembly main part, the position bullet piece is spacing in detaining. According to the design, the demoulding of the inclined hook structure is realized by buckling the demoulding component structure and matching the upper template and the lower template.

Description

Mold buckling position demolding structure

Technical Field

The utility model relates to a technical field that moulds plastics especially relates to a position demoulding structure is detained to mould.

Background

In the prior art, a connector generally includes a plastic body and hardware embedded in the plastic body, the hardware is generally formed by stamping a metal plate, and the plastic body is generally formed by injection molding. The connector is mainly used for connecting two active devices to realize current or signal transmission, and is commonly called as: the connector and the socket are connected in a pluggable and interfitting manner. In order to realize the stability of the plug and the socket after butt joint, a barb-shaped hook is generally formed on one plastic body, a groove-shaped or through hole-shaped hanging table is formed on the other plastic body, and the stable butt joint of the plug and the socket is realized through the hook and the hanging table buckle. One type of hook structure is designed with a slanted angle (less than ninety degrees) in the prior art, however, such slanted hooks present demolding difficulties during injection molding. Although the industry has solved the demoulding mode of this kind of slope couple, the structure is generally comparatively loaded down with trivial details, and mould cost of manufacture is very high, and comparatively complicated mould structure can break down and need bigger maintenance cost again easily.

In view of the above, it is desirable to provide a mold fastening and demolding structure to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a position demoulding structure is detained to mould can simplify the drawing of patterns of mould.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a mold buckling position demolding structure comprises a lower mold part, an upper mold part assembled with the lower mold part and a buckling position demolding assembly assembled in the upper mold part and matched with the lower mold part, wherein an injection molding space is formed between the upper mold part and the lower mold part, a buckling position demolding assembly accommodating groove is formed in the upper mold part, the buckling position demolding assembly accommodating groove penetrates through the lower surface of the upper mold part downwards and is communicated with the injection molding space, the buckling position demolding assembly comprises a buckling position demolding assembly main body and a spring member, the buckling position demolding assembly main body is accommodated in the buckling position demolding assembly accommodating groove, the buckling position demolding assembly comprises a downward extending cantilever-shaped rubber position elastic block and a downward extending cantilever-shaped resetting guide pin, the spring member is elastically abutted against the buckling position demolding assembly main body to apply a downward thrust to the buckling position demolding assembly main body, the rubber position elastic block is obliquely limited in the buckling position demolding assembly accommodating groove and can move in a reciprocating mode along the inclination direction of the rubber position elastic block, when the lower die piece and the upper die piece are in a die closing state, the lower end edge of the reset guide needle is pressed against the lower die piece, the rubber position elastic block protrudes into the injection molding space, and when the lower die piece and the upper die piece are in a die opening state, the thrust of the spring member to the buckling position demoulding assembly main body drives the buckling position demoulding assembly main body to move downwards.

As a further improvement of this design, a hook groove is formed on an inner side surface of an acute angle formed between a lower end edge of the return guide needle and a plane formed by the left-right direction and the front-rear direction.

As a further improvement of this design, detain a drawing of patterns subassembly main part and include the main board portion, it is formed by the downward extension of main board portion to glue the position bullet piece, the direction needle that resets is formed by main board portion downwardly extending, detain a drawing of patterns subassembly holding tank including the knot position drawing of patterns subassembly accepting groove that is located the top position and be located detain a drawing of patterns subassembly accepting groove below and with detain a drawing of patterns subassembly accepting groove intercommunication setting detain a drawing of patterns subassembly displacement groove, detain a drawing of patterns subassembly displacement groove and mould plastics space intercommunication setting, detain a drawing of patterns subassembly main part and hold in detaining a drawing of patterns subassembly accepting groove, it is spacing in detaining a drawing of patterns subassembly displacement groove to glue the position bullet piece by the slope.

As a further improvement of the design, the main board part comprises a pressing plate and an elastic block fixing plate, the number of the rubber elastic blocks is one, the number of the reset guide needles is two, the pressing plate is plate-shaped, the elastic block fixing plate is plate-shaped, a rubber elastic block limiting hole and two reset guide needle limiting holes are formed in the elastic block fixing plate, the rubber elastic block limiting hole is positioned in the middle of the two reset guide needle limiting holes, the rubber elastic block limiting hole and the reset guide needle limiting holes are both designed to have an upper opening cross section area larger than a lower opening cross section area, the rubber elastic blocks and the reset guide needles are both columnar structures, the upper end parts of the rubber elastic blocks are respectively provided with a limiting structure, the rubber elastic blocks are inserted into the rubber elastic block limiting holes from top to bottom and are limited by the limiting structures and the rubber elastic block limiting holes, and the upper end parts of the reset guide needles are respectively provided with a limiting cap, the reset guide needle is inserted into the reset guide needle limiting hole from top to bottom and is limited with the reset guide needle limiting hole through a limiting cap, the pressing plate is fixed on the upper surface of the elastic block fixing plate, and one end of the spring component is elastically abutted to the upper surface of the pressing plate.

As a further improvement of this design, when the lower mold part and the upper mold part are in a mold closing state, the main plate portion moves upward to be spaced apart from the groove bottom surface of the fastening demolding component accommodating groove, and when the lower mold part and the upper mold part are in a mold opening state, the main plate portion abuts against the groove bottom surface of the accommodating groove.

As a further improvement of the design, the position-buckling demolding assembly displacement groove comprises a glue position elastic block displacement groove and a reset guide needle displacement groove, the glue position elastic block displacement groove is matched with the glue position elastic block displacement groove, the reset guide needle displacement groove is matched with the reset guide needle, the glue position elastic block displacement groove is obliquely arranged along the vertical direction, and the glue position elastic block displacement groove is tightly attached to the outer peripheral surface of the glue position elastic block.

As a further improvement of the design, the reset guide needle is obliquely arranged, and meanwhile, the oblique direction and the oblique angle of the reset guide needle are the same as those of the rubber position elastic block.

As a further improvement of the present design, the latching and demolding assembly accommodating groove penetrates through the upper mold in the up-down direction, one end of the spring member elastically abuts against the upper surface of the latching and demolding assembly body, the other end of the spring member is elastically abutted against another member located on the upper surface of the upper mold plate, the spring member is a compression spring, when the lower mold member and the upper mold member are in a mold closing state, the spring member has a pushing force F1 against the latching and demolding assembly body, when the lower mold member and the upper mold member are in a mold opening state, the spring member has a pushing force F2 against the latching and demolding assembly body, the pushing force F1 is greater than the pushing force F2, and the pushing force F2 is greater than zero newton.

As a further improvement of the design, the cross section of the rubber position elastic block is square, and the cross section of the reset guide needle is circular.

As a further improvement of the design, the device also comprises an inner die piece, wherein the inner die piece is fixed on the lower die piece, an injection molding space is formed between the upper die piece and the inner die piece and between the upper die piece and the inner die piece, and the lower end edge of the reset guide needle is correspondingly pressed on the inner die piece.

The utility model has the advantages that: according to the design, the demoulding of the inclined hook structure is realized by buckling the demoulding assembly structure and matching the upper template and the lower template, the performance is stable, the structure is simple, and the whole manufacturing cost of the mould is low.

Drawings

FIG. 1 is a perspective view of a mold clamping and demolding structure of the present design;

FIG. 2 is a partial exploded perspective view of the mold capture and ejection structure of the present design, showing a perspective view of the upper mold piece separated from the lower mold piece;

FIG. 3 is an exploded perspective view of the mold release structure of the present design;

FIG. 4 is a right side view of the mold snap demolding structure of the present design shown in FIG. 3;

FIG. 5 is a perspective view of the mold snap-in demolding structure of the present design shown in FIG. 2 with the upper mold part removed;

FIG. 6 is a front view of the mold capture and ejection structure of the present design shown in FIG. 2 with the upper mold piece removed;

FIG. 7 is a cross-sectional view of the mold snap release configuration of the present design shown in FIG. 1 taken along line A-A;

FIG. 8 is a cross-sectional view taken along line A-A of the mold snap release configuration of the present design shown in FIG. 1, further illustrating a perspective view of the upper mold part when the upper and lower mold parts are open;

FIG. 9 is an exploded perspective view of a button position stripping assembly of the present design of mold button position stripping structure;

fig. 10 is a partial enlarged view of fig. 8, specifically, an enlarged view of a dotted circle portion.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description of the present invention, it is to be understood that the terms "comprises" and "comprising," and any variations thereof, as used herein, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In addition, for the sake of accuracy of description, all the directions of reference in the whole text are uniformly referred to as fig. 1, wherein the direction of the X axis is the left-right direction, and the positive direction of the X axis is the right direction; the Y axis is in the front-back direction, wherein the positive direction of the Y axis is front; the Z axis is in the up-down direction, wherein the positive direction of the Z axis is upward.

As shown in fig. 1 to 10, the mold fastening and demolding structure of the present design includes a lower mold member 1, an inner mold member 2 fixed on the lower mold member 1, an upper mold member 3 clamped with the lower mold member 1, and a fastening and demolding assembly 4 assembled in the upper mold member 3 and cooperating with the inner mold member 2. The inner mould part 2 is assembled and limited in the lower mould part 1, the upper mould part 3 and the lower female part 2 are matched, and an injection space (not marked) is formed between the upper mould part 3 and the inner mould part 2. For the sake of description, the design also shows the injection-molded part 5 formed after molding. The injection-molded part 5 is formed with hook structures 51 in an inclined shape (the barb structures 41 are inclined forward from the up-down direction by an acute angle).

Referring to fig. 1 to 3, fig. 7 and fig. 8, a fastening-position mold-release-component-receiving groove 30 is formed above the injection molding space of the upper mold part 3, and the fastening-position mold-release-component-receiving groove 30 penetrates through the upper mold part 3 in the vertical direction. The buckle position demoulding component accommodating groove 30 comprises a buckle position demoulding component accommodating groove 31 positioned at the upper position and a buckle position demoulding component displacement groove 32 positioned below the buckle position demoulding component accommodating groove 31 and communicated with the buckle position demoulding component accommodating groove 31. The fastening stripper displacement groove 32 is disposed to be inclined forward or backward in the up-down direction (depending on the inclination direction of the barb structure 41, in this design, the fastening stripper displacement groove 32 is inclined backward at an acute angle in the up-down direction). The buckling position demoulding component displacement groove 32 is communicated with the injection molding space.

Referring to fig. 9 in conjunction with fig. 1 to 8, the fastening demolding assembly 4 includes a pressing plate 41, a spring block fixing plate 42, a glue position spring block 43, a return guide pin 44, and a spring member 45. The pressing plate 41 and the spring block fixing plate 42 are accommodated in the buckle position demolding assembly accommodating groove 31. The pressing plate 41 is plate-shaped, and two screw holes 410 are formed on the pressing plate 41 in a penetrating manner. The bullet piece fixed plate 42 is platelike, is formed with the spacing hole 421 of a gluey position bullet piece, two spacing holes 422 of direction needle and two screw holes 420 that reset on the bullet piece fixed plate 42, the spacing hole 421 of gluey position bullet piece is located two spacing holes 422 intermediate positions of direction needle that reset. The glue position spring block limiting hole 421 and the reset guide needle limiting hole 422 are designed to have an upper section opening area larger than a lower section opening area.

Glue position bullet piece 43 and the guide pin that resets 44 and all are the columnar structure, glue position bullet piece 43 cross-section is squarely, the cross-section of guide pin 44 that resets is circular. Glue position bullet piece 43 upper end and be formed with limit structure 431, glue position bullet piece 43 from top to bottom alternates into glue position bullet piece spacing hole 421 in and spacing through limit structure 431 and glue position bullet piece spacing hole 421. The upper end of the reset guide needle 44 is formed with a limit cap 441, and the reset guide needle 44 is inserted into the reset guide needle limit hole 422 from top to bottom and is limited with the reset guide needle limit hole 422 through the limit cap 441. The pressing plate 41 is fixed on the upper surface of the elastic block fixing plate 42 and locked by a screw 6 (or rivet). One end of the spring member 45 elastically presses against the upper surface of the pressing plate 41, and the other end of the spring member 45 elastically presses against a panel (not shown) located on the upper surface of the upper platen 3 (the panel refers to another member except the upper platen). The spring member 45 is a compression spring, and the spring member 45 always keeps a downward pushing force on the pressure plate 41 in the process that the upper template 3 and the lower template 1 are opened or closed.

Referring to fig. 7, 8 and 10, in the present design, the displacement slot 32 of the buckle position demolding assembly includes a rubber position elastic block displacement slot (not numbered) for receiving the rubber position elastic block 43 in a matching manner and a reset guide pin displacement slot (not numbered) for receiving the reset guide pin 44 in a matching manner. The rubber position elastic block 43 penetrates through the rubber position elastic block displacement groove, and the rubber position elastic block displacement groove is tightly attached to the outer peripheral surface of the rubber position elastic block 43. The reset guide needle 44 penetrates through the reset guide needle displacement groove, and preferably, the reset guide needle displacement groove is closely attached to the outer peripheral surface of the reset guide needle 44. In this design, a hook groove 430 (see fig. 8 and 10) is formed on a surface of the lower end edge of the glue position spring 43 in a recessed manner, and specifically, the hook groove 430 is formed on an inner side surface of an acute angle formed between the reset guide needle 44 and a plane formed by the left-right direction and the front-back direction. Referring to fig. 4 and fig. 5, in the present design, the reset guide pin 44 is also disposed in an inclined manner, and the inclined direction and the inclined angle of the reset guide pin 44 are the same as those of the glue position spring block 43.

Referring to fig. 5 and 7, when the lower mold part 1 and the upper mold part 2 are in a mold closing state, the lower edges of the two reset guide pins 44 are pressed against the inner mold part 2 (in other embodiments, they may also be directly pressed against the lower mold part 1), and at this time, the glue position spring block 43 protrudes into the injection space. The pressing plate 41 and the spring block fixing plate 42 are upwardly separated from the bottom surface of the fastening stripper assembly receiving slot 31, and the spring member has a pushing force F1 to the pressing plate 41. And when the mold is closed, plastic liquid is injected into the injection molding space to form an injection molding part 5, and an inclined hook structure 51 is formed in the hook groove 430.

Referring to fig. 8, when the lower mold unit 1 and the upper mold unit 2 are in the mold opening state, the pressing plate 41, the elastic block fixing plate 42, the glue position elastic block 43 and the return guide pin 44 are driven by the pushing force of the spring member to move downward along the inclined direction of the glue position elastic block limiting hole 421 until the elastic block fixing plate 42 abuts against the bottom surface of the accommodating groove 31. Because the rubber position elastic block 43 obliquely moves downwards along the rubber position elastic block limiting hole 421, the lower end edge of the rubber position elastic block 43 can move backwards and forwards (forwards along the Y axis in the design) relative to the surface of the injection molding part 5 while moving downwards, so that the hook groove 430 of the rubber position elastic block 43 is separated from the hook structure 51 along the front-back direction, and the demolding action is realized. The spring member has a pushing force F2 against the pressure plate 41 when the lower mold part 1 and the upper mold part 2 are in the mold-opened state. In the design, the thrust F1 is designed to be larger than the thrust F2, and the thrust F2 is larger than zero Newton.

In other embodiments, the pressing plate 41, the elastic block fixing plate 42, the rubber position elastic block 43 and the reset guide pin 44 may be designed to be an integral structure, that is, they may be collectively referred to as a fastening demolding assembly main body (not numbered), which includes a main plate portion (not shown, i.e., the pressing plate 41 and the rubber position elastic block 43 in this embodiment), a rubber position elastic block (not shown, i.e., the overhanging wall portion of the rubber position elastic block 43 in this embodiment below the elastic block fixing plate 42) and a reset guide pin (not shown, i.e., the overhanging wall portion of the reset guide pin 44 in this embodiment below the elastic block fixing plate 42).

This design is through detaining position drawing of patterns subassembly 4 structure and cooperation cope match-plate pattern 3 and lower bolster 1 and realize the drawing of patterns to slope form couple structure 51, the stable performance, simple structure, the whole low in cost of manufacture of mould.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. The utility model provides a position demoulding structure is detained to mould which characterized in that: the mold comprises a lower mold part, an upper mold part assembled with the lower mold part and a buckling demolding assembly assembled in the upper mold part and matched with the lower mold part, wherein an injection molding space is formed between the upper mold part and the lower mold part, the upper mold part forms a buckling demolding assembly accommodating groove, the buckling demolding assembly accommodating groove penetrates through the lower surface of the upper mold part downwards and is communicated with the injection molding space, the buckling demolding assembly comprises a buckling demolding assembly main body and a spring member, the buckling demolding assembly main body is accommodated in the buckling demolding assembly accommodating groove, the buckling demolding assembly comprises a downward extending cantilever-shaped rubber position elastic block and a downward extending cantilever-shaped reset guide pin, the spring member elastically abuts against the buckling demolding assembly main body and applies a downward pushing force to the buckling demolding assembly main body, the rubber position elastic block is obliquely limited in the buckling demolding assembly accommodating groove and can reciprocate along the inclination direction of the rubber position elastic block, when the lower die piece and the upper die piece are in a die closing state, the lower end edge of the reset guide needle is pressed against the lower die piece, the rubber position elastic block protrudes into the injection molding space, and when the lower die piece and the upper die piece are in a die opening state, the thrust of the spring member to the buckling position demoulding assembly main body drives the buckling position demoulding assembly main body to move downwards.

2. The mold snap-off demolding structure according to claim 1, wherein: and a hook groove is formed on the inner side surface of an acute angle formed between the lower end edge of the reset guide needle and a plane formed by the left-right direction and the front-back direction.

3. The mold snap-off demolding structure according to claim 1, wherein: detain a drawing of patterns subassembly main part and include the main board portion, it is formed by the downward extension of main board portion to glue a position bullet piece, the direction needle that resets is formed by main board portion downwardly extending, detain a drawing of patterns subassembly holding tank including the knot position drawing of patterns subassembly accepting groove that is located the top position and be located detain a drawing of patterns subassembly accepting groove below and with detain a drawing of patterns subassembly accepting groove intercommunication setting detain a drawing of patterns subassembly displacement groove, detain a drawing of patterns subassembly displacement groove and mould plastics space intercommunication setting, detain a drawing of patterns subassembly main part and hold in detaining a drawing of patterns subassembly accepting groove, it is spacing in detaining a drawing of patterns subassembly displacement groove to glue a position bullet piece by the slope.

4. The mold snap-off demolding structure according to claim 3, wherein: the main plate part comprises a pressing plate and an elastic block fixing plate, the number of the rubber elastic blocks is one, the number of the reset guide needles is two, the pressing plate is plate-shaped, the elastic block fixing plate is plate-shaped, a rubber elastic block limiting hole and two reset guide needle limiting holes are formed in the elastic block fixing plate, the rubber elastic block limiting hole is positioned in the middle of the two reset guide needle limiting holes, the rubber elastic block limiting hole and the reset guide needle limiting holes are both designed to have an upper opening cross-sectional area larger than a lower opening cross-sectional area, the rubber elastic blocks and the reset guide needles are both columnar structures, the upper ends of the rubber elastic blocks are respectively provided with a limiting structure, the rubber elastic blocks are inserted into the rubber elastic block limiting holes from top to bottom and are limited by the limiting structures and the rubber elastic block limiting holes, the upper ends of the reset guide needles are respectively provided with a limiting cap, the reset guide needles are inserted into the reset guide needle limiting holes from top to bottom and are limited by the limiting caps and the reset guide needle limiting holes, the pressing plate is fixed on the upper surface of the elastic block fixing plate, and one end of the spring component elastically abuts against the upper surface of the pressing plate.

5. The mold snap-off demolding structure according to claim 3, wherein: when the lower die piece and the upper die piece are in a die closing state, the main board portion moves upwards to be spaced from the bottom surface of the containing groove of the buckling demolding assembly, and when the lower die piece and the upper die piece are in a die opening state, the main board portion abuts against the bottom surface of the containing groove.

6. The mold snap-off demolding structure according to claim 3, wherein: detain position drawing of patterns subassembly displacement groove including the matching accommodate the glue position bullet piece displacement groove of glue position bullet piece and the matching accommodate the guide pin displacement groove that resets of guide pin, glue position bullet piece displacement groove sets up along upper and lower direction slope, glue position bullet piece displacement groove and the inseparable laminating of glue position bullet piece outer peripheral face.

7. The mold snap-off demolding structure according to claim 6, wherein: the reset guide needle is obliquely arranged, and meanwhile, the oblique direction and the oblique angle of the reset guide needle are the same as those of the rubber position elastic block.

8. The mold snap-off demolding structure according to claim 1, wherein: the buckling demolding assembly accommodating groove penetrates through the upper mold along the up-down direction, one end of the spring member elastically abuts against the upper surface of the buckling demolding assembly main body, the other end of the spring member is elastically abutted against the other member on the upper surface of the upper mold plate, the spring member is a compression spring, when the lower mold and the upper mold are in a mold closing state, the spring member has a thrust F1 to the buckling demolding assembly main body, when the lower mold and the upper mold are in a mold opening state, the spring member has a thrust F2 to the buckling demolding assembly main body, the thrust F1 is greater than the thrust F2, and the thrust F2 is greater than zero newton.

9. The mold snap-off demolding structure according to claim 1, wherein: the cross section of the rubber position elastic block is square, and the cross section of the reset guide needle is circular.

10. The mold snap-off demolding structure according to claim 1, wherein: the reset guide needle comprises a reset guide needle, and is characterized by further comprising an inner die piece, wherein the inner die piece is fixed on the lower die piece, an injection molding space is formed between the upper die piece and the inner die piece and between the upper die piece and the inner die piece, and the lower end edge of the reset guide needle is correspondingly pressed on the inner die piece.

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