CN211251174U

CN211251174U - Die assembly

Info

Publication number: CN211251174U
Application number: CN201922119358.7U
Authority: CN
Inventors: 刘明洋
Original assignee: Dongguan Dongwu Precision Plastic Hardware Co ltd
Current assignee: Dongguan Dongwu Precision Plastic Hardware Co ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-08-14
Anticipated expiration: 2029-11-28

Abstract

The utility model relates to an injection mold technical field, concretely relates to mould assembly, including mould benevolence, mold core assembly and kicking block, the die cavity has been seted up to mould benevolence, mold core assembly and kicking block all hold and locate in the die cavity, the kicking block sets up between mold core assembly and mould benevolence, the kicking block with leave the space between the mould benevolence, the crowded tight groove with the space intercommunication is seted up to the kicking block, crowded tight inslot interpolation is equipped with crowded tight piece. The die assembly prevents a gap or an open state from being formed at the abutting position between the part and the part of the assembly die core assembly, and avoids the damage of the part caused by collision injury in the process of assembling the part of the die core assembly.

Description

Die assembly

Technical Field

The utility model relates to an injection mold technical field, concretely relates to mould assembly.

Background

In an injection mold, in a mold core assembly formed by abutting a plurality of parts, because the mold core assembly has a plurality of parts and the sizes of the parts have tolerance ranges, in the assembling process, if a gap exists at the abutting position between the parts, the quality problem of an injection product is caused; if the abutting position between the parts is too tight, the parts are difficult to assemble from the bottom of the die core, the parts are easy to be damaged by collision, and the abutting position between the parts is not in plane contact, namely the abutting position between the parts is easy to be in an open state, so that the quality problem of injection products is caused.

Disclosure of Invention

In order to overcome the shortcoming and the deficiency that exist among the prior art, the utility model aims to provide a mould assembly prevents that support between part and the part of assembly mold core assembly from leaning on to have the gap or open state, avoids the part in-process part of assembly mold core assembly to damage by damaging.

The purpose of the utility model is realized through the following technical scheme: the mold assembly comprises a mold core, a mold core assembly and an ejector block, wherein a mold groove is formed in the mold core, the mold core assembly and the ejector block are both contained in the mold groove, the ejector block is arranged between the mold core assembly and the mold core, a gap is reserved between the ejector block and the mold core, a tightening groove communicated with the gap is formed in the ejector block, and a tightening block is inserted in the tightening groove.

Preferably, the top block comprises a first clamping plate and a second clamping plate abutted against the side wall of the first clamping plate, the first clamping plate and the second clamping plate are both far away from the middle part of the mold core and are both arranged between the mold core assembly and the mold core, and gaps are reserved between the first clamping plate and the mold core and between the second clamping plate and the mold core and are both used for clamping the squeezing block; the tight groove of crowded including all with crowded tight piece complex first oblique recess and the oblique recess of second, first oblique recess set up in first splint, the oblique recess of second set up in second splint.

Preferably, the groove depth of the first inclined groove gradually increases from the top of the first inclined groove to the bottom of the first inclined groove, and the groove depth of the second inclined groove gradually increases from the top of the second inclined groove to the bottom of the second inclined groove.

Preferably, the squeezing block comprises a first pushing block matched with the first inclined groove and a second pushing block matched with the second inclined groove, the first pushing block is clamped between the first clamping plate and the mold core, and the second pushing block is clamped between the second clamping plate and the mold core.

Preferably, the first pushing block and the second pushing block are both wedge-shaped blocks.

Preferably, the mold assembly further comprises a supporting plate, a mold blank, a supporting plate and a bottom plate which are connected in sequence, the mold insert is abutted to the supporting plate, a containing groove is formed in the mold blank, the mold insert and the supporting plate are all contained in the containing groove, the supporting plate is lifted and arranged in the supporting plate, the supporting plate is arranged on the bottom plate, the mold assembly further comprises a guide rod and a thimble which are all arranged at the top of the supporting plate, a first through hole for the guide rod to penetrate through is formed in the mold blank, a second through hole for the thimble to penetrate through is formed in the supporting plate and the mold blank, an elastic piece is arranged on the guide rod sleeve, and the elastic piece is arranged between the.

Preferably, the top of the carrier plate is provided with a spacing column.

Preferably, the mold assembly further comprises a positioning block fixedly connected with the bottom plate, and the bearing plate and the supporting plate are both provided with positioning holes for the positioning block to penetrate through.

The beneficial effects of the utility model reside in that: the utility model discloses a mold assembly, at the in-process with mold core assembly to mould benevolence, pack the die cavity into with the kicking block earlier, typeset according to predetermined design with mold core assembly again, leave the space between kicking block and the mould benevolence, the mold core assembly of being convenient for, prevent to assemble the part of mold core assembly and lean on between the part to locate to have open state, the part in-process part of avoiding assembling mold core assembly bumps and damages, will crowd tight piece again along crowded tight groove embedding kicking block and mould benevolence between, thereby will crowd tight mold core assembly and kicking block, it has the gap and makes injection moulding plastics flow in this gap and lead to injection moulding product to appear the quality problems to lean on between the part of avoiding assembling mold core assembly and the part to locate.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is an exploded schematic view of the present invention;

FIG. 3 is a schematic view of the assembly structure of the mold core, the mold core assembly and the top block of the present invention;

FIG. 4 is an enlarged view of A in FIG. 3;

FIG. 5 is a schematic view of the mold core, mold core assembly and ejector block of the present invention from another perspective;

fig. 6 is an exploded view of the mold insert, the mold core assembly and the ejector block of the present invention.

The reference signs are: 1. a mold core; 2. a mold core assembly; 3. a top block; 31. a first splint; 32. a second splint; 4. a die cavity; 5. a void; 6. a compaction groove; 61. a first inclined groove; 62. a second inclined groove; 7. a compaction block; 71. a first pushing block; 72. a second pushing block; 8. a support plate; 9. molding blanks; 10. a carrier plate; 11. a supporting plate; 12. a base plate; 13. a containing groove; 14. a guide bar; 15. a thimble; 16. a first through hole; 17. a second through hole; 18. an elastic member; 19. a limiting column; 20. positioning blocks; 21. and (7) positioning the holes.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and accompanying drawings, which are not intended to limit the present invention.

As shown in fig. 1-6, a mold assembly comprises a mold core 1, a mold core assembly 2 and a top block 3, wherein the mold core 1 is provided with a mold cavity 4, the mold core assembly 2 and the top block 3 are both accommodated in the mold cavity 4, the top block 3 is arranged between the mold core assembly 2 and the mold core 1, a gap 5 is left between the top block 3 and the mold core 1, the top block 3 is provided with a tightening groove 6 communicated with the gap 5, and a tightening block 7 is inserted in the tightening groove 6.

In the process of assembling the mold core component 2 to the mold core 1, the ejector block 3 is firstly arranged in the mold cavity 4, then the mold core component 2 is composed according to the preset design and is arranged in the mold cavity 4, the gap 5 is reserved between the ejector block 3 and the mold core 1, the mold core component 2 is convenient to assemble, the open state of the leaning part between the parts for assembling the mold core component 2 is prevented, the parts are prevented from being damaged by collision in the process of assembling the parts of the mold core component 2, then the extruding block 7 is embedded between the ejector block 3 and the mold core 1 along the extruding groove 6, thereby will squeeze tight mold core assembly 2 and kicking block 3 for hug closely each other between mold core assembly 2's the part and the part in order to reach sealing connection's effect, avoid assembling mold core assembly 2's the part and the part between lean on the department to have the gap and make the injection molding plastic flow in this gap and lead to injection molding product to appear the quality problem. Furthermore, the number of the die cavities 4 is 4, 4 die cavities 4 make the die core 1 approximately in a shape of a 'tian', and the 4 die cavities 4 are all provided with the die core assembly 2, the ejector block 3 and the compaction block 7.

As shown in fig. 1 to 6, in the present embodiment, the top block 3 includes a first clamping plate 31 and a second clamping plate 32 abutting against a sidewall of the first clamping plate 31, the first clamping plate 31 and the second clamping plate 32 are both far away from a middle portion of the mold core 1 and are both disposed between the mold core assembly 2 and the mold core 1, and gaps 5 are both left between the first clamping plate 31 and the mold core 1 and between the second clamping plate 32 and the mold core 1 and both clamp the clamping blocks 7; the tight groove 6 including all with tight piece 7 complex first oblique recess 61 and the oblique recess 62 of second of tight piece, first oblique recess 61 set up in first splint 31, the oblique recess 62 of second set up in second splint 32.

Adopt above-mentioned technical scheme, set up first splint 31 and support the second splint 32 that leans on in the lateral wall of first splint 31, support the double-phase adjacent lateral wall of mold core assembly 2 with first splint 31 and second splint 32 respectively and support, work as the crowded tight back of first oblique recess 61 and the crowded tight piece 7 of the equal embedding of the oblique recess 62 of second, mold core assembly 2 all reaches crowded tight state all around, the part of avoiding assembling mold core assembly 2 and supporting between the part have the gap and make the injection moulding material flow in this gap and lead to injection moulding product to appear the quality problems.

As shown in fig. 2 and 6, in the present embodiment, the groove depth of the first inclined groove 61 gradually increases from the top of the first inclined groove 61 to the bottom of the first inclined groove 61, and the groove depth of the second inclined groove 62 gradually increases from the top of the second inclined groove 62 to the bottom of the second inclined groove 62; specifically, the first inclined groove 61 and the second inclined groove 62 are each wedge-shaped.

By adopting the technical scheme, the squeezing block 7 can be conveniently embedded between the first clamping plate 31 and the die core 1 along the bottom of the first inclined groove 61, and the squeezing block 7 can be conveniently embedded between the second clamping plate 32 and the die core 1 along the bottom of the second inclined groove 62, so that the assembly efficiency is improved.

As shown in fig. 2 and fig. 6, in the present embodiment, the compressing block 7 includes a first compressing block 71 matching with the first inclined groove 61 and a second compressing block 72 matching with the second inclined groove 62, the first compressing block 71 is clamped between the first clamping plate 31 and the mold core 1, and the second compressing block 72 is clamped between the second clamping plate 32 and the mold core 1.

By adopting the technical scheme, the first pushing block 71 is embedded between the first clamping plate 31 and the mold core 1 along the first inclined groove 61, and the second pushing block 72 is embedded between the second clamping plate 32 and the mold core 1 along the second inclined groove 62, so that the mold core assembly 2 is in a squeezing state all around, and the quality problem of injection molding products caused by the fact that injection molding plastic flows into the gap at the position where the part of the mold core assembly 2 is abutted to the part is avoided.

As shown in fig. 2 and 6, in the present embodiment, the first pushing block 71 and the second pushing block 72 are both wedge-shaped blocks.

By adopting the technical scheme, the first pushing block 71 can be conveniently embedded between the first clamping plate 31 and the die core 1 along the first inclined groove 61, and the second pushing block 72 can be conveniently embedded between the second clamping plate 32 and the die core 1 along the second inclined groove 62, so that the assembling efficiency is improved.

As shown in fig. 1-2, in this embodiment, the mold assembly further includes a supporting plate 8, a mold blank 9, a supporting plate 10, a supporting plate 11 and a bottom plate 12, which are connected in sequence, the mold insert 1 abuts against the top of the supporting plate 8, the mold blank 9 has a receiving groove 13, the mold insert 1 and the supporting plate 8 are both accommodated in the receiving groove 13, the supporting plate 10 is disposed in the supporting plate 11 in a lifting manner, the supporting plate 11 is disposed on the bottom plate 12, the mold assembly further includes a guide rod 14 and an ejector pin 15 both disposed at the top of the supporting plate 10, the mold blank 9 has a first through hole 16 for the guide rod 14 to pass through, the supporting plate 8 and the mold blank 9 have second through holes 17 for the ejector pin 15 to pass through, the guide rod 14 is sleeved with an elastic member 18, and the elastic member 18 is disposed between the supporting plate 10.

By adopting the technical scheme, the mold core 1 assembled with the mold core component 2, the jacking block 3 and the compaction block 7 is flatly supported by the supporting plate 8, so that the subsequent injection molding is facilitated. In order to facilitate taking out of a molded injection product, the mold base 9 is provided with a first through hole 16 through which a guide rod 14 penetrates, the supporting plate 8 and the mold base 9 are both provided with a second through hole 17 through which a thimble 15 penetrates, the guide rod 14 is sleeved with an elastic part 18, when the supporting plate 10 is pushed to move upwards, the supporting plate 10 drives the thimble 15 to move upwards along the second through hole 17, the thimble 15 extends out of the mold core assembly 2 and ejects the injection product, and at the moment, the elastic part 18 is compressed; after the injection product is ejected, the elastic element 18 resets and moves the bearing plate 10 and the thimble 15 downwards to reset. In particular, the elastic member 18 is a compression spring.

As shown in fig. 1-2, in this embodiment, the top of the carrier plate 10 is provided with a restraint post 19.

With the technical scheme, the arranged limiting columns 19 prevent the elastic piece 18 from being damaged due to the fact that the elastic piece 18 is excessively compressed when the carrier plate 10 is pushed to move upwards.

As shown in fig. 2, in this embodiment, the mold assembly further includes a positioning block 20 fixedly connected to the bottom plate 12, and the carrier plate 10 and the supporting plate 11 are both provided with positioning holes 21 for the positioning block 20 to penetrate through.

Adopt above-mentioned technical scheme, cooperate through locating piece 20 and locating hole 21, be convenient for carrier plate 10, fagging 11 and bottom plate 12 on the one hand and assemble, improved the position accuracy and the stability of three equipment, on the other hand has improved the stability that carrier plate 10 goes up and down to move.

The above-mentioned embodiment is the utility model discloses the implementation of preferred, in addition, the utility model discloses can also realize by other modes, not deviating from the utility model discloses any obvious replacement is all within the protection scope under the prerequisite of design.

Claims

1. A mold assembly, comprising: the mold comprises a mold core, a mold core assembly and a jacking block, wherein a mold groove is formed in the mold core, the mold core assembly and the jacking block are both accommodated in the mold groove, the jacking block is arranged between the mold core assembly and the mold core, a gap is reserved between the jacking block and the mold core, a tightening groove communicated with the gap is formed in the jacking block, and a tightening block is inserted in the tightening groove.

2. A mold assembly as recited in claim 1, wherein: the top block comprises a first clamping plate and a second clamping plate which is abutted against the side wall of the first clamping plate, the first clamping plate and the second clamping plate are both far away from the middle part of the mold core and are both arranged between the mold core assembly and the mold core, gaps are reserved between the first clamping plate and the mold core and between the second clamping plate and the mold core, and the first clamping plate and the second clamping plate are both clamped with the squeezing block; the tight groove of crowded including all with crowded tight piece complex first oblique recess and the oblique recess of second, first oblique recess set up in first splint, the oblique recess of second set up in second splint.

3. A mold assembly as recited in claim 2, wherein: the groove depth of the first inclined groove is gradually increased from the top of the first inclined groove to the bottom of the first inclined groove, and the groove depth of the second inclined groove is gradually increased from the top of the second inclined groove to the bottom of the second inclined groove.

4. A mold assembly as recited in claim 2, wherein: the squeezing block comprises a first pushing block matched with the first inclined groove and a second pushing block matched with the second inclined groove, the first pushing block is clamped between the first clamping plate and the die core, and the second pushing block is clamped between the second clamping plate and the die core.

5. A mold assembly as recited in claim 4, wherein: the first pushing block and the second pushing block are both wedge-shaped blocks.

6. A mold assembly as recited in claim 1, wherein: the mould assembly further comprises a supporting plate, a mould blank, a supporting plate and a bottom plate which are connected in sequence, wherein the mould insert is abutted against the supporting plate, a containing groove is formed in the mould blank, the mould blank and the supporting plate are all contained in the containing groove, the supporting plate is lifted and arranged in the supporting plate, the supporting plate is arranged on the bottom plate, the mould assembly further comprises a guide rod and a thimble which are all arranged at the top of the supporting plate, a first through hole for the guide rod to run through is formed in the mould blank, a second through hole for the thimble to run through is formed in the supporting plate and the mould blank, an elastic piece is arranged between the supporting plate and the mould blank in a sleeved mode.

7. A mold assembly as recited in claim 6, wherein: the top of carrier plate is provided with spacing post.

8. A mold assembly as recited in claim 6, wherein: the die assembly further comprises a positioning block fixedly connected with the bottom plate, and the bearing plate and the supporting plate are provided with positioning holes for the positioning block to penetrate through.