CN114619599A - Production die device and production method for product with back-off - Google Patents

Abstract

The invention discloses a production die device and a production method of a product with an inverted buckle, wherein the production method comprises the following steps: the upper die unit and the lower die unit are matched and form a film cavity; injecting glue into the mold cavity to fill the mold cavity; the upper die and the upper template component of the upper die unit are separated, the longitudinal sliding seat is driven to slide upwards, and the inward shrinkage core is driven to retract inwards along the inclined direction of the inclined wall so as to be separated from the reverse buckle; the upper die and the lower die unit of the upper die unit are separated, the sliding die core is driven to slide outwards to separate from the first concave-convex structure of the product, and the inner shrinkage core, the first fixed die core and the groove of the product are driven to separate; and ejecting the product in the mold cavity through the ejector pin mechanism so as to separate the second concave-convex structure of the product. It has the following advantages: through the structure, the groove with the inclined plane and the inverted buckle can be formed, and the inner shrinkage core can be drawn after being shrunk inwards to realize one-step forming.

Description

Production die device and production method for product with back-off

Technical Field

The invention relates to the technical field of plastic molding parts and molding methods, in particular to a mold device for producing a product with an inverted buckle and a production method thereof.

Background

Referring to fig. 1 to 3, a conventional product 1 with an inverted buckle is shown, wherein a groove is formed at the top, an inclined surface 11 is formed at the bottom of the groove, an inverted buckle 12 is formed at the groove wall, a first concave-convex structure 13 is formed on the side wall, a concave cavity is formed in the first concave-convex structure, a convex column is fixedly arranged at the bottom of the cavity, a hole part is concavely formed in the end surface of the convex column, a second concave-convex structure 14 is formed at the bottom, a concave cavity is formed in the second concave-convex structure, a hole part is formed in the bottom of the cavity, and the like.

Disclosure of Invention

The invention provides a die device for producing a product with an inverted buckle and a production method thereof, which overcome the defects of the die device for producing the product with the inverted buckle in the background technology.

One of the technical schemes adopted by the invention for solving the technical problems is as follows: the mold device for producing the product with the back-off function is characterized in that a groove is formed in the top of the product with the back-off function, the bottom of the groove is an inclined plane, a back-off function is arranged on the groove wall of the groove, a first concave-convex structure is arranged on the side wall, and a second concave-convex structure is arranged at the bottom of the groove; the production mold comprises an upper mold unit, a lower mold unit, an inner core-retracting mechanism and a mold core mechanism; the upper die unit and the lower die unit are matched and form a film cavity; the upper die unit is provided with a first fixed die core, the first fixed die core is provided with a longitudinal sliding groove and a transverse sliding groove which penetrates through the longitudinal sliding groove and the longitudinal sliding groove, the inner core-retracting mechanism comprises a longitudinal sliding seat which can be longitudinally slidably connected with the longitudinal sliding groove and an inner core which is slidably connected with the transverse sliding groove and is provided with a structure corresponding to an inverted buckle, the first fixed die core, the inner core-retracting and the longitudinal sliding seat are matched to form a forming structure corresponding to a groove and the inverted buckle, the bottom end surface of the first fixed die core, the bottom end surface of the inner core-retracting and the bottom end surface of the longitudinal sliding seat are matched to form an inclined wall matched with an inclined plane, the longitudinal sliding seat is provided with a first inclined sliding groove, and the inner core-retracting is also slidably connected with the first inclined sliding groove and is driven to slide inwards and outwards along the inclined direction of the inclined wall through the longitudinal sliding of the longitudinal sliding seat; the mold core mechanism comprises a slip form core which can be transversely connected with the lower mold unit in a sliding manner, and the slip form core can extend into the film cavity and is matched with the first concave-convex structure; the lower die unit is provided with a second fixed die core matched with the second concave-convex structure.

In one embodiment: the longitudinal sliding seat is provided with a frustum wall with a large upper part and a small lower part, the side wall of the frustum wall is concavely provided with the first inclined sliding groove, the first inclined sliding groove is small in size, the inner contraction core is provided with a first sliding block matched with the first inclined sliding groove, and the first sliding block is matched and glidingly connected in the first inclined sliding groove.

In one embodiment: the upper die unit comprises an upper die and an upper die plate component, wherein the upper die and the upper die plate component can be relatively far away or close to each other, the first die fixing core is arranged on the upper die, the upper die plate component and the upper end of the longitudinal sliding seat are fixedly arranged together, and the upper die plate component and the upper die are far away from the upper die to drive the inner shrinkage core to shrink.

In one embodiment: the upper die is fixedly provided with a guide block, the bottom surface of the guide block is parallel to the inclined wall, and the top wall of the inward-shrinkage core is matched with the bottom surface of the guide block.

In one embodiment: an extension wall is arranged at the top of the inward-contracting core, a second inclined sliding groove is formed between the upper die and the guide block, the second inclined sliding groove is parallel to the inclined wall, and the extension wall is matched with the second inclined sliding groove.

In one embodiment: the mold core mechanism comprises a second sliding block which is connected with the lower mold unit in a sliding mode, and the sliding mold core is fixedly arranged on the second sliding block.

In one embodiment: the upper die unit comprises an upper die, the lower die unit comprises a lower die and a lower template module, the lower die is connected with the lower template module in an assembling way, and the second die fixing core is arranged on the lower die; the second sliding block is transversely connected with the lower die in a sliding manner, the second sliding block is provided with a third inclined sliding groove, the upper die is fixedly provided with an inclined block, the inclined block is matched with the third inclined sliding groove, and the second sliding block is driven to slide outwards by the upper die and the lower die in a mold splitting manner

In one embodiment: the ejector pin mechanism is mounted on the lower die unit and abuts against the product.

In one embodiment: this go up mould unit and bed die unit compound die and form two membrane chambeies, each membrane chamber respectively sets and contracts core mechanism and mold core mechanism in.

The second technical scheme adopted by the invention for solving the technical problems is as follows: the production method of the production die device for the product with the back-off comprises the following steps:

step 1, closing an upper die unit and a lower die unit and forming a film cavity;

step 2, injecting glue into the die cavity to fill the die cavity;

step 3, separating an upper die and an upper template component of the upper die unit to drive the longitudinal sliding seat to slide upwards and drive the retraction core to retract inwards along the inclined direction of the inclined wall so as to separate from the reverse buckle;

step 4, separating the upper die unit and the lower die unit of the upper die unit, driving the sliding die core to slide outwards to separate from the first concave-convex structure of the product, and driving the inner shrinkage core, the first fixed die core and the groove of the product to separate;

and 5, ejecting the product in the mold cavity through the ejector pin mechanism to separate the second concave-convex structure of the product.

Compared with the background technology, the technical scheme has the following advantages:

the first solid mold core is provided with a longitudinal sliding groove and a transverse sliding groove which runs through the longitudinal sliding groove and the outer side of the longitudinal sliding groove, the inner core-retracting mechanism comprises a longitudinal sliding seat which can be longitudinally connected with the longitudinal sliding groove, and an inner core-retracting core which is connected with the transverse sliding groove in a sliding manner and is provided with a structure corresponding to an inverted buckle, the first solid mold core, the inner core-retracting core and the longitudinal sliding seat are matched to form a forming structure corresponding to a groove and the inverted buckle, the bottom end surface of the first solid mold core, the bottom end surface of the inner core-retracting core and the bottom end surface of the longitudinal sliding seat are matched to form an inclined wall of the matched inclined plane, the longitudinal sliding seat is provided with a first inclined sliding groove, the inner core-retracting core is further connected with the first inclined sliding groove in a sliding manner and drives the inner core to slide inwards and outwards along the inclined direction of the inclined wall through longitudinal sliding of the longitudinal sliding seat, the groove with the inclined plane and the inverted buckle can be formed through the structure, and the inner core can be pulled out after retraction, so that one-step forming can be realized.

Drawings

The invention is further described with reference to the following figures and detailed description.

Fig. 1 is one of perspective views of a product with an inverted buckle.

Fig. 2 is a second perspective view of the product with an inverted buckle.

Fig. 3 is a third perspective view of the product with an inverted buckle.

Fig. 4 is a schematic view of the structure of mold clamping at the mold apparatus of the embodiment.

FIG. 5 is a schematic view of a first split mold of the mold apparatus according to the embodiment.

FIG. 6 is a schematic structural view of a second split mold of the mold apparatus according to the embodiment.

Fig. 7 is a schematic structural view of a third split mold of the mold apparatus according to the embodiment.

Fig. 8 is a structural view of a fourth split mold of the mold apparatus according to the embodiment.

Fig. 9 is a schematic structural view of a mold apparatus for ejecting a product according to an embodiment.

Fig. 10 is a perspective view of an inner core-retracting mechanism according to an embodiment.

FIG. 11 is a schematic perspective cross-sectional view of a molding position of an inner core-retracting mechanism according to an embodiment.

FIG. 12 is a schematic perspective cross-sectional view of an embodiment of a core-retraction mechanism in a retracted position.

Fig. 13 is a schematic perspective sectional view of the inner core-retracting mechanism in a disengaged state according to the embodiment.

FIG. 14 is a schematic cross-sectional view of a molding position at the core-retracting mechanism of the embodiment.

Detailed Description

Referring to fig. 1 to 3, the top of the product 1 with the reverse buckle is provided with a groove, the bottom of the groove is an inclined plane 11, the wall of the groove is provided with a reverse buckle 12, the side wall is provided with a first concave-convex structure 13, the first concave-convex structure is provided with a concave cavity, the bottom of the cavity is provided with a convex column, the end surface of the convex column is concave with a hole part, etc., the bottom is provided with a second concave-convex structure 14, the second concave-convex structure is provided with a concave cavity, the bottom of the cavity is provided with a hole part, etc.

Referring to fig. 4 to 14, the mold device for producing a product with a reverse buckle includes an upper mold unit 2, a lower mold unit 3, an inner core-retracting mechanism 4 and a mold core mechanism 5; the upper die unit 2 comprises an upper die 21 and an upper platen member, the lower die unit 3 comprises a lower die 31 and a lower platen module, and the upper die 21 of the upper die unit 2 and the lower die 31 of the lower die unit 3 are clamped and form the membrane cavity 7.

The upper die 21 is provided with a first fixed die core 22, the first fixed die core 22 is provided with a longitudinal sliding chute 23 and a transverse sliding chute penetrating through the longitudinal sliding chute 23, the inner core-retracting mechanism 4 comprises a longitudinal slide 41 capable of longitudinally sliding on the longitudinal slide groove 23 and an inner core-retracting 42 sliding on the transverse slide groove and provided with a corresponding reverse-buckling structure, the first fixed mold core 22, the inner shrinkage core 42 and the longitudinal slide 41 cooperate to form a molding structure corresponding to the groove and the back-off 12, the bottom end face of the first fixed mold core 22, the bottom end face of the retraction core 42 and the bottom end face of the longitudinal slide base 41 are matched to form an inclined wall matched with the inclined face 11, the longitudinal slide 41 is provided with a first inclined slide groove 43, the inner telescopic core 42 is also connected with the first inclined slide groove 43 in a sliding way and drives the inner telescopic core 42 to slide inwards and outwards along the inclined direction of the inclined wall through the longitudinal slide 41, through the structure, the groove with the inclined plane and the inverted buckle can be formed, and the inner shrinkage core can be drawn after being shrunk inwards to realize one-step forming. In the concrete structure: the longitudinal sliding seat 41 is provided with a frustum wall with a large upper part and a small lower part, the side wall of the frustum wall is concavely provided with the first inclined sliding groove 43, the first inclined sliding groove 43 is small in size, the retracted core 42 is provided with a first sliding block matched with the first inclined sliding groove 43, the first sliding block is in sliding connection with the first inclined sliding groove 43 in a matching manner, and the retracted core 42 can be driven to slide inwards when the longitudinal sliding seat 41 moves upwards; the upper die 21 and the first upper die plate 28 of the upper die plate component can be relatively far away or close to each other, the first upper die plate 28 and the upper end of the longitudinal sliding seat 41 are fixedly connected together, the first upper die plate 28 and the upper end of the upper die 21 are far away from each other to drive the inner shrinkage core 42 to shrink inwards, the inner shrinkage core is driven to shrink inwards through the upper die and the first upper die plate, and no additional driving mechanism is needed; the upper die 21 is fixedly provided with a guide block 24, the bottom surface of the guide block 24 is parallel to the inclined wall, a second inclined chute is formed between the upper die 21 and the guide block 24 and is parallel to the inclined wall, the top of the inner contracted core 42 is provided with an extension wall, and the extension wall is matched with the second inclined chute to ensure that the inner contracted core slides along the inclined wall.

The mold core mechanism 5 comprises a second slide block 52 and a slip form core 51 which can be transversely connected to the lower mold 31 in a sliding manner, the slip form core 51 can extend into the mold cavity 7 and is matched with the first concave-convex structure 13, and the slip form core 51 is fixedly arranged on the second slide block 52 so as to drive the slip form core to slide through the second slide block. The lower die 31 is provided with a second fixed die core 33 adapted to the second relief structure 14. In the concrete structure: the lower die 31 is connected with the first lower die plate 32 of the lower die plate module, the second slide block 52 is provided with a third inclined slide groove, the upper die 21 is fixedly provided with an inclined block 25, the inclined block 25 is matched with the third inclined slide groove, and the second slide block 52 is driven to slide outwards through the upper die 21 and the lower die 31 in a die-parting manner, so that the structure is compact, and a driving mechanism is not required to be additionally arranged.

According to the needs, still include thimble mechanism 6, this thimble mechanism 6 dress is adorned at lower mould unit 3 and is pushed up product 1, in the concrete structure: the lower mold 31 and the first lower mold plate 32 are fixed at an interval from top to bottom, the thimble mechanism 6 includes a third slide block 61 slidably connected between the lower mold 31 and the first lower mold plate 32 and a thimble 62 fixed on the third slide block 61, the thimble penetrates through the first lower mold plate and the lower mold and penetrates into the film cavity to prop against the product 1.

This go up mould unit 2 and lower mould unit 3 compound die and form two membrane chambeies 7, and each membrane chamber 7 respectively sets and contracts core mechanism and mold core mechanism in to can promote the productivity, reduce cost.

The production method of the production die device for the product with the back-off comprises the following steps:

step 1, closing an upper die unit and a lower die unit and forming a film cavity;

step 2, injecting glue into the die cavity to fill the die cavity;

step 3, separating an upper die and an upper template component of the upper die unit to drive the longitudinal sliding seat to slide upwards and drive the retraction core to retract inwards along the inclined direction of the inclined wall so as to separate from the reverse buckle;

step 4, separating the upper die unit and the lower die unit of the upper die unit, driving the sliding die core to slide outwards to separate from the first concave-convex structure of the product, and driving the inner shrinkage core, the first fixed die core and the groove of the product to separate;

and 5, ejecting the product in the mold cavity through the ejector pin mechanism to separate the second concave-convex structure of the product.

The method specifically comprises the following steps: in the using process, please refer to fig. 4, the upper template unit 2 and the lower template unit 3 are matched and injection molded, and the mold splitting step after molding is as follows: 1. referring to fig. 4 and 5, the first upper mold plate 28 and the upper mold 21 are far away from each other, and the longitudinal slide 41 drives the retracted core 42 to retract, so that the retracted core slides from the molding position to the retracted position to be disengaged from the reverse buckle, and the retracted core 42 can be disengaged from the groove of the product 1 and is positioned in the first mold split; 2. referring to fig. 5 and 6, the second upper platen 26 and the third upper platen 27 of the upper platen assembly are integrally spaced from the first upper platen 28 to tear the trim 16 formed in the feed channel and to a second split mold; 3. referring to fig. 6 and 7, the second upper die plate 26 and the third upper die plate 27 are far away from each other so that the offal 16 is separated and positioned in a third split die; 4. referring to fig. 7 and 8, the upper die 21 is far from the lower die 31, the slide die core 51 is driven by the inclined block 25 to slide outwards to separate from the first concave-convex structure 13 of the product 1, and the retracted core, the first fixed die core and the groove of the product 1 are separated (separated state) and are in a fourth die division state; 5. referring to fig. 8 and 9, the third slider slides to eject the product 1 through the ejector pin 62.

The above description is only a preferred embodiment of the present invention, and therefore should not be taken as limiting the scope of the invention, which is defined by the appended claims and their equivalents.

Claims (10)

1. The mold device for producing the product with the back-off function is characterized in that a groove is formed in the top of the product with the back-off function, the bottom of the groove is an inclined plane, a back-off function is arranged on the groove wall of the groove, a first concave-convex structure is arranged on the side wall, and a second concave-convex structure is arranged at the bottom of the groove; the method is characterized in that: the production mold comprises an upper mold unit, a lower mold unit, an inner core-retracting mechanism and a mold core mechanism; the upper die unit and the lower die unit are matched and form a film cavity; the upper die unit is provided with a first fixed die core, the first fixed die core is provided with a longitudinal sliding groove and a transverse sliding groove which penetrates through the longitudinal sliding groove and the longitudinal sliding groove, the inner core retracting mechanism comprises a longitudinal sliding seat which can be longitudinally connected to the longitudinal sliding groove in a sliding manner and an inner retracting core which is connected to the transverse sliding groove in a sliding manner and is provided with a structure corresponding to an inverted buckle, the first fixed die core, the inner retracting core and the longitudinal sliding seat are matched to form a forming structure corresponding to a groove and the inverted buckle, the bottom end surface of the first fixed die core, the bottom end surface of the inner retracting core and the bottom end surface of the longitudinal sliding seat are matched to form an inclined wall matched with an inclined surface, the longitudinal sliding seat is provided with a first inclined sliding groove, and the inner retracting core is also connected to the first inclined sliding groove in a sliding manner and drives the inner retracting core to slide inwards and outwards along the inclined direction of the inclined wall through the longitudinal sliding of the longitudinal sliding seat; the mold core mechanism comprises a slip form core which can be transversely connected with the lower mold unit in a sliding manner, and the slip form core can extend into the film cavity and is matched with the first concave-convex structure; the lower die unit is provided with a second fixed die core matched with the second concave-convex structure.

2. The production die device for a product with a reverse buckle according to claim 1, wherein: the longitudinal sliding seat is provided with a frustum wall with a large upper part and a small lower part, the side wall of the frustum wall is concavely provided with the first inclined sliding groove, the first inclined sliding groove is small in size, the inner contraction core is provided with a first sliding block matched with the first inclined sliding groove, and the first sliding block is matched and glidingly connected in the first inclined sliding groove.

3. The production die device for a product with a reverse buckle according to claim 1, wherein: the upper die unit comprises an upper die and an upper die plate component, wherein the upper die and the upper die plate component can be relatively far away or close to each other, the first die fixing core is arranged on the upper die, the upper die plate component and the upper end of the longitudinal sliding seat are fixedly arranged together, and the upper die plate component and the upper die are far away from the upper die to drive the inner shrinkage core to shrink.

4. The production die device for a product with a reverse buckle according to claim 3, wherein: the upper die is fixedly provided with a guide block, the bottom surface of the guide block is parallel to the inclined wall, and the top wall of the inward-shrinkage core is matched with the bottom surface of the guide block.

5. The production die device for a product with a reverse buckle according to claim 4, wherein: an extension wall is arranged at the top of the inward-contracting core, a second inclined sliding groove is formed between the upper die and the guide block, the second inclined sliding groove is parallel to the inclined wall, and the extension wall is matched with the second inclined sliding groove.

6. The production die device for a product with a reverse buckle according to claim 1, wherein: the mold core mechanism comprises a second sliding block which is connected with the lower mold unit in a sliding mode, and the sliding mold core is fixedly arranged on the second sliding block.

7. The production die apparatus for a product with a reverse buckle according to claim 6, characterized in that: the upper die unit comprises an upper die, the lower die unit comprises a lower die and a lower template module, the lower die is connected with the lower template module in an assembling way, and the second die fixing core is arranged on the lower die; the second sliding block is transversely connected to the lower die in a sliding mode, the second sliding block is provided with a third inclined sliding groove, the upper die is fixedly provided with an inclined block, and the inclined block is matched with the third inclined sliding groove and drives the second sliding block to slide outwards through the upper die and the lower die.

8. The production die device for a product with a reverse buckle according to claim 1, wherein: the ejector pin mechanism is mounted on the lower die unit and abuts against a product.

9. The production die device for a product with a reverse buckle according to claim 1, characterized in that: this go up mould unit and bed die unit compound die and form two membrane chambeies, each membrane chamber respectively sets and contracts core mechanism and mold core mechanism in.

10. The production method of the production die device for a product with a reverse buckle according to claim 1, characterized in that: the method comprises the following steps:

step 1, closing an upper die unit and a lower die unit and forming a film cavity;

step 2, injecting glue into the die cavity to fill the die cavity;

step 3, separating an upper die and an upper template component of the upper die unit to drive the longitudinal sliding seat to slide upwards and drive the retraction core to retract inwards along the inclined direction of the inclined wall so as to separate from the reverse buckle;

step 4, separating the upper die unit and the lower die unit of the upper die unit, driving the sliding die core to slide outwards to separate from the first concave-convex structure of the product, and driving the inner shrinkage core, the first fixed die core and the groove of the product to separate;

and 5, ejecting the product in the mold cavity through the ejector pin mechanism to separate the second concave-convex structure of the product.

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