CN220576470U - Insert tensioning and part ejection structure of die - Google Patents
Insert tensioning and part ejection structure of die Download PDFInfo
- Publication number
- CN220576470U CN220576470U CN202321862674.3U CN202321862674U CN220576470U CN 220576470 U CN220576470 U CN 220576470U CN 202321862674 U CN202321862674 U CN 202321862674U CN 220576470 U CN220576470 U CN 220576470U
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- die
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- groove
- insert
- trapezoid
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- 238000001746 injection moulding Methods 0.000 claims abstract description 6
- 238000001125 extrusion Methods 0.000 claims description 16
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 abstract description 6
- 229920000647 polyepoxide Polymers 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 4
- 238000012797 qualification Methods 0.000 abstract description 4
- 238000000748 compression moulding Methods 0.000 abstract description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Abstract
The utility model relates to the technical field of APG compression molding tools, in particular to an insert tensioning and part ejection structure of a mold, which comprises a primary fixed mold core and a secondary fixed mold core which are arranged in a hollow core cavity of the APG mold, wherein the primary fixed mold core and the secondary fixed mold core are used for positioning an insert for installing a part; the movable template is provided with a tensioning piece; the tensioning piece not only can play a tensioning role on the insert in the die assembly process, but also can reversely eject the part in the driven template through reversely installing the ejection module after the part is molded, so that the movable template, the part and the fixed template are separated, the insert and the epoxy resin injection molding piece are ensured to be integrally demoulded, and the qualification rate of the part is improved.
Description
Technical Field
The utility model relates to the technical field of APG compression molding tools, in particular to an insert tensioning and part ejection structure of a mold.
Background
The inserts of the traditional APG die are clamped through the pins arranged in the die, the fixing mode has strict requirements on the sizes of the inserts and the pins, but the pins are worn out after the service time is long, so that the inserts are not tightly clamped with the pins, the inserts are dropped due to vibration generated in the die assembly process, and the parts after injection are scrapped; when the counter bore of the insert is not well matched with the pin, epoxy resin can invade the threaded hole of the insert, and re-tapping is needed, so that the existing use requirements cannot be met; for this reason, the prior publication number is CN218019807U discloses an APG mold insert fixing structure, and the end face of the insert and the end face of the pin are sealed by screwing the pin and the insert, so that epoxy resin cannot invade into the threaded hole, and the sealing performance is good; meanwhile, the pin and the die are attracted by the magnet, and the pin and the insert cannot be separated from the die and fall off during die assembly, so that the stability is high.
However, in the structure, after the part is molded by injection molding, the mold is not easy to separate during demolding, so that the insert is easy to pull to separate from the epoxy resin injection molding to a certain extent during manual mold separation, and the part is scrapped.
Disclosure of Invention
The utility model aims to provide an insert tensioning and part ejection structure of a die, which solves the technical problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the insert tensioning and part ejection structure of the mold comprises a primary fixed mold core and a secondary fixed mold core which are arranged in a hollow core cavity of an APG mold, wherein one ends of the primary fixed mold core and the secondary fixed mold core are respectively arranged on a fixed mold plate of the APG mold, and the other end of the primary fixed mold core is abutted against a movable mold plate of the APG mold;
the inner side of the hollow core cavity is provided with an insert, the primary fixed mold core and the secondary fixed mold core respectively penetrate through the insert, the side wall of the movable mold plate, which is positioned in the hollow core cavity, is provided with a mounting groove, the mounting groove is internally provided with an ejection block, and one end of the ejection block, which faces the hollow core cavity, is in pressure connection with one end, which is far away from the fixed mold plate, of the insert and the secondary fixed mold core;
the movable template is provided with a tensioning piece, and the tensioning piece comprises;
the die sinking groove is arranged on the outer surface of the movable die plate and is positioned on one side adjacent to the fixed die plate, a mounting hole is formed in the inner wall of the die sinking groove, one end of the mounting hole penetrates through the inner wall of the mounting groove, a fixed shaft is arranged in the mounting hole, one end of the fixed shaft penetrates through the ejection block through the connecting part and is connected with the insert, the other end of the fixed shaft extends to the die sinking groove and is provided with a die sinking part, a die sinking module is inserted in the die sinking groove and is used for fixing the position of the die sinking part after being inserted into the die sinking groove, and accordingly tensioning of the insert is achieved;
and the die stripping module is inserted into the die stripping groove after rotating 180 degrees, and the movable die plate and the fixed die plate are separated after the part is injection molded by changing the position of the die stripping part in the die stripping groove.
Preferably, a trapezoid groove is formed in the upper edge of the die withdrawing part in a ring shape, and the trapezoid groove is in an isosceles trapezoid structure;
the die sinking module comprises a connecting rod, one end of the connecting rod is provided with a handle, the other end of the connecting rod is provided with a connecting block, one end of the connecting block, which is far away from the connecting rod, is spliced in the die sinking groove and is provided with two trapezoid blocks, and the two trapezoid blocks are respectively positioned in the trapezoid grooves at two sides of the die sinking part;
the trapezoid blocks are right trapezoid in structure, and the oblique sides of the two trapezoid blocks are arranged in parallel on the same side;
the width of the die stripping groove is larger than that of the trapezoid groove, the width of the die stripping groove is the same as that of the connecting block, and the width of the trapezoid block is smaller than that of the connecting block;
the inclined side of the trapezoid block coincides with the inclined plane of one side of the trapezoid groove, which is far away from the fixed template, and is used for tensioning the insert;
the die stripping module is withdrawn from the die stripping groove and inserted into the die stripping groove after rotating 180 degrees, so that the inclined edge of the trapezoid block coincides with the inclined surface of one side of the trapezoid groove, which is close to the fixed die plate, and the die stripping module is used for reversely ejecting the movable die plate and separating the fixed die plate.
Preferably, the structures of the primary fixed mold core and the secondary fixed mold core are all trapezoid cylinders, and the diameter of the primary fixed mold core and the diameter of the secondary fixed mold core, which are close to one end of the fixed mold plate, are larger than the diameter of the primary fixed mold core and the diameter of the secondary fixed mold core, which are close to one end of the movable mold plate.
Preferably, the tensioning piece further comprises a cylindrical extrusion part, the cylindrical extrusion part is arranged at one end of the insert close to the ejection block, a compression groove matched with the cylindrical extrusion part is formed at one end of the ejection block, and one end of the cylindrical extrusion part extends and abuts against the compression groove;
an internal thread groove is formed in the central axis of the cylindrical extrusion part, and the connecting part of the fixed shaft is in threaded connection with the internal thread groove.
Preferably, the tensioning member further comprises a positioning hole, the positioning hole is formed in one end of the movable template, the positioning hole and the mounting hole are coaxially arranged, and the die withdrawing part on the fixing shaft extends into the positioning hole.
Preferably, the outer surface of the fixed shaft is provided with a stress hole.
Preferably, the tensioning pieces are provided with two groups, and the two groups of tensioning pieces are symmetrically arranged on the movable template.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, the ejection module not only can play a role in tensioning the insert in the die assembly process, but also can reversely eject the part from the driven template through reversely installing the ejection module after the part is molded, so that the movable template, the part and the fixed template are subjected to die separation, the integral die stripping of the insert and the epoxy resin injection molding is ensured, and the qualification rate of the part is improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the insert-tensioning and part ejection structure of the mold of the present utility model;
FIG. 2 is a cross-sectional view taken at A-A of FIG. 1 in accordance with the present utility model;
FIG. 3 is a schematic diagram of the module of FIG. 1 according to the present utility model;
in the figure: 1. the movable mold plate, 2, the fixed mold plate, 3, the hollow core cavity, 4, the first-stage fixed mold core, 5, the second-stage fixed mold core, 6, the inserts, 7, the ejecting block, 8, the die stripping groove, 9, the fixed shaft, 10, the die stripping part, 11, the connecting part, 12, the die stripping part, 121, the connecting rod, 122, the handle, 123, the connecting block, 124, the trapezoid block, 13, the cylindrical extrusion part, 14, the pressing groove, 15, the internal thread groove, 16, the locating hole, 17, the stress hole, 18, the trapezoid groove, 19, the locking module, 20, the locking bolt, 21, the movable mold seat plate, 22, the fixed mold seat plate, 23 and the flying ring screw.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1-3, the utility model provides an insert tensioning and part ejection structure of a mold, which comprises a primary fixed mold core 4 and a secondary fixed mold core 5 which are arranged in a hollow core cavity 3 of an APG mold, wherein one ends of the primary fixed mold core 4 and the secondary fixed mold core 5 are respectively arranged on a fixed mold plate 2 of the APG mold, and the other ends of the primary fixed mold core 4 are abutted against a movable mold plate 1 of the APG mold; an insert 6 is arranged in the hollow core cavity 3, the primary fixed mold core 4 and the secondary fixed mold core 5 respectively penetrate through the insert 6, a mounting groove is formed in the side wall of the movable mold plate 1, which is positioned in the hollow core cavity 3, an ejection block 7 is arranged in the mounting groove, and one end of the ejection block 7, which faces the hollow core cavity 3, is in pressure connection with one end, far away from the fixed mold plate 2, of the insert 6 and the secondary fixed mold core 5;
the movable mold plate 1 is provided with a tensioning piece, the tensioning piece comprises a mold stripping groove 8, the mold stripping groove 8 is formed in the outer surface of the movable mold plate 1 and is positioned on one side adjacent to the fixed mold plate 2, the inner wall of the mold stripping groove 8 is provided with a mounting hole, one end of the mounting hole penetrates through the inner wall of the mounting groove, a fixed shaft 9 is arranged in the mounting hole, one end of the fixed shaft 9 penetrates through an ejection block 7 through a connecting part 11 to be connected with an insert 6, the other end of the fixed shaft 9 extends to the mold stripping groove 8 and is internally provided with a mold stripping part 10, a mold stripping module 12 is inserted into the mold stripping groove 8, and the mold stripping module 12 is used for fixing the position of the mold stripping part 10 after being inserted into the mold stripping groove 8, so that the tensioning of the insert 6 is realized; the die stripping module 12 is inserted into the die stripping groove 8 after rotating 180 degrees, and the die stripping part 10 is changed in the die stripping groove 8, so that the movable die plate 1 and the fixed die plate 2 are separated after the part is injection molded.
In this embodiment, the withdrawal module 12 not only can play a tensioning role on the insert 6 in the mold closing process, but also can reversely eject the part from the driven mold plate 1 through reversely installing the withdrawal module 12 after the part is molded, so that the movable mold plate 1, the part and the fixed mold plate 2 are separated, the insert 6 and the epoxy resin injection molding are ensured to be integrally demolded, and the qualification rate of the part is improved.
Further, a trapezoid groove 18 is formed in the upper edge of the die withdrawing part 10 in a ring shape, and the trapezoid groove 18 is in an isosceles trapezoid shape;
the ejector module 12 comprises a connecting rod 121, and a handle 122 is arranged at one end of the connecting rod 121, so that the ejector module 12 can be conveniently inserted into or pulled out of the ejector slot 8 manually; the other end of the connecting rod 121 is provided with a connecting block 123, one end of the connecting block 123 away from the connecting rod 121 is inserted into the die stripping groove 8 and provided with two trapezoid blocks 124, and the two trapezoid blocks 124 are respectively inserted into trapezoid grooves 18 at two sides of the die stripping part 10;
the trapezoid blocks 124 are right trapezoid, and the oblique sides of the two trapezoid blocks 124 are arranged in parallel on the same side;
the width of the die sinking groove 8 is larger than that of the trapezoid groove 18, the width of the die sinking groove 8 is the same as that of the connecting block 123, and the width of the trapezoid block 124 is smaller than that of the connecting block 123;
during die assembly, the inclined sides of the trapezoid blocks 124 are overlapped with the inclined sides of the trapezoid grooves 18 at the side far away from the fixed die plate 2, so that the inserts 6 are tensioned; during mold separation, the ejector module 12 is ejected out of the ejector slot 8, rotated 180 degrees and then inserted into the ejector slot 8, so that the inclined edge of the trapezoid block 124 coincides with the inclined surface of the trapezoid slot 18, which is close to one side of the fixed mold plate 2, and is used for reversely ejecting the movable mold plate 1 out of the fixed mold plate 2 for mold separation.
Further, the structures of the primary fixed mold core 4 and the secondary fixed mold core 5 are all arranged to be trapezoid cylinders, and the diameter of one end, close to the fixed mold plate 2, of the primary fixed mold core 4 and the secondary fixed mold core 5 is larger than that of one end, close to the movable mold plate 1, of the primary fixed mold core 4 and the secondary fixed mold core 5 can play a supporting role on the insert 6 when the part is reversely ejected from the movable mold plate 1.
Further, the tensioning piece further comprises a cylindrical extrusion part 13, the cylindrical extrusion part 13 is arranged at one end of the insert 6 close to the ejection block 7, a compression groove 14 matched with the cylindrical extrusion part 13 is formed at one end of the ejection block 7, and one end of the cylindrical extrusion part 13 extends and abuts in the compression groove 14; an internal thread groove 15 is formed on the central axis of the cylindrical extrusion part 13, and the connecting part 11 of the fixed shaft 9 is in threaded connection with the internal thread groove 15; after the movable mold plate 1 and the fixed mold plate 2 are assembled, the ejector module 12 is inserted into the ejector groove 8 until the inclined edge of the trapezoid block 124 is tightly pressed against the inclined surface of one side of the trapezoid groove 18 away from the fixed mold plate 2, so as to tighten the insert 6 through the fixed shaft 9.
Further, the tensioning member further comprises a positioning hole 16, the positioning hole 16 is arranged at one end of the movable die plate 1, the positioning hole 16 and the mounting hole are coaxially arranged, and the die withdrawing part 10 on the fixed shaft 9 extends into the positioning hole 16 to perform positioning auxiliary mounting.
Further, the stress hole 17 is formed in the outer surface of the fixed shaft 9, so that a tool can conveniently pass through the stress hole 17, the fixed shaft 9 and the insert 6 can be screwed together, labor intensity can be reduced, and meanwhile, installation accuracy is guaranteed.
The force receiving hole 17 in the present embodiment may be circular or polygonal, and is not limited to the shape shown in fig. 2 in the present embodiment, and may be used for attaching an auxiliary tool to screw or remove the fixed shaft 9.
Further, the tensioning pieces are provided with two groups, and the two groups of tensioning pieces are symmetrically arranged on the movable mould plate 1 and used for guaranteeing that the stress of the insert 6 is uniform in the mould separation process, so that the qualification rate of parts is further improved.
In the embodiment, the movable template 1 and the fixed template 2 are detachably connected through a plurality of locking modules 19; wherein, first screw hole that is used for installing lock module 19 has been seted up to the adjacent one side of surface of movable mould board 1 and fixed mould board 2, has seted up the second screw hole corresponding with first screw hole position and size on the lock module 19, and second screw hole installs locking bolt 20, and the screw rod one end of locking bolt 20 extends to first screw hole and carries out threaded connection.
Further, the movable die plate 21 and the fixed die plate 22 are respectively arranged on the opposite sides of the movable die plate 1 and the fixed die plate 2 through fastening bolts and are used for supporting and mounting the movable die plate 1 and the fixed die plate 2; and a plurality of suspension ring screws 23 are symmetrically arranged on the adjacent sides of the outer surfaces of the movable template 1 and the fixed template 2 respectively, so that after the part is subjected to compression molding, the die is hoisted into heat insulation equipment through a hoisting tool for solidification molding.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (7)
1. The utility model provides an insert tensioning and part ejection structure of mould which characterized in that: the APG mold comprises a primary fixed mold core (4) and a secondary fixed mold core (5) which are arranged in a hollow core cavity (3) of the APG mold, wherein one ends of the primary fixed mold core (4) and the secondary fixed mold core (5) are respectively arranged on a fixed mold plate (2) of the APG mold, and the other end of the primary fixed mold core (4) is abutted on a movable mold plate (1) of the APG mold;
an insert (6) is arranged in the hollow core cavity (3), the primary fixed die core (4) and the secondary fixed die core (5) penetrate through the insert (6) respectively, a mounting groove is formed in the side wall of the movable die plate (1) in the hollow core cavity (3), an ejection block (7) is arranged in the mounting groove, and the ejection block (7) is pressed against one end of the hollow core cavity (3) at the end, far away from the fixed die plate (2), of the insert (6) and the secondary fixed die core (5);
a tensioning piece is arranged on the movable template (1), and comprises;
the mold stripping groove (8) is formed in the outer surface of the movable mold plate (1) and is positioned on one side adjacent to the fixed mold plate (2), a mounting hole is formed in the inner wall of the mold stripping groove (8), one end of the mounting hole penetrates through the inner wall of the mounting groove, a fixed shaft (9) is mounted in the mounting hole, one end of the fixed shaft (9) penetrates through the ejection block (7) through a connecting part (11) to be connected with the insert (6), a mold stripping part (10) is arranged in the mold stripping groove (8) at the other end of the fixed shaft (9), a mold stripping module (12) is inserted into the mold stripping groove (8), and the mold stripping module (12) is used for fixing the position of the mold stripping part (10) after being inserted into the mold stripping groove (8), so that the insert (6) is tensioned;
the die stripping module (12) is inserted into the die stripping groove (8) after rotating 180 degrees, and the die stripping part (10) is changed in the position in the die stripping groove (8) to realize die separation of the movable die plate (1) and the fixed die plate (2) after part injection molding.
2. The insert-tensioning and part-ejection structure of a mold according to claim 1, wherein: a trapezoid groove (18) is formed in the upper edge of the die withdrawing part (10) in a ring shape, and the trapezoid groove (18) is in an isosceles trapezoid structure;
the die sinking module (12) comprises a connecting rod (121), a handle (122) is arranged at one end of the connecting rod (121), a connecting block (123) is arranged at the other end of the connecting rod (121), one end, far away from the connecting rod (121), of the connecting block (123) is inserted into the die sinking groove (8) and is provided with two trapezoid blocks (124), and the two trapezoid blocks (124) are respectively positioned in the trapezoid grooves (18) at two sides of the die sinking part (10);
the trapezoid blocks (124) are right trapezoid in structure, and the oblique sides of the two trapezoid blocks (124) are arranged in parallel on the same side;
the width of the die stripping groove (8) is larger than that of the trapezoid groove (18), the width of the die stripping groove (8) is the same as that of the connecting block (123), and the width of the trapezoid block (124) is smaller than that of the connecting block (123);
the inclined edge of the trapezoid block (124) coincides with the inclined surface of the trapezoid groove (18) at the side far away from the fixed template (2) and is used for tensioning the insert (6);
the die sinking module (12) is withdrawn from the die sinking groove (8) and is inserted into the die sinking groove (8) after rotating 180 degrees, so that the inclined edge of the trapezoid block (124) coincides with the inclined surface of one side of the trapezoid groove (18) close to the fixed die plate (2), and the die sinking module is used for reversely ejecting the movable die plate (1) and separating the fixed die plate (2).
3. The insert-tensioning and part-ejection structure of a mold according to claim 1, wherein: the structure of the primary fixed die core (4) and the structure of the secondary fixed die core (5) are both trapezoid cylinders, and the diameter of the primary fixed die core (4) and the diameter of the secondary fixed die core (5) close to one end of the fixed die plate (2) are larger than the diameter of the secondary fixed die core close to one end of the movable die plate (1).
4. The insert-tensioning and part-ejection structure of a mold according to claim 1, wherein: the tensioning piece further comprises a cylindrical extrusion part (13), the cylindrical extrusion part (13) is arranged at one end of the insert (6) close to the ejection block (7), a compression groove (14) matched with the cylindrical extrusion part (13) is formed at one end of the ejection block (7), and one end of the cylindrical extrusion part (13) extends and abuts against the compression groove (14);
an internal thread groove (15) is formed in the central axis of the cylindrical extrusion part (13), and the connecting part (11) of the fixed shaft (9) is in threaded connection with the internal thread groove (15).
5. The insert-tensioning and part-ejection structure of a mold according to claim 1, wherein: the tensioning piece further comprises a positioning hole (16), the positioning hole (16) is formed in one end of the movable die plate (1), the positioning hole (16) and the mounting hole are coaxially arranged, and the die withdrawing part (10) on the fixed shaft (9) extends into the positioning hole (16).
6. The insert-tensioning and part-ejection structure of claim 5, wherein: the outer surface of the fixed shaft (9) is provided with a stress hole (17).
7. The insert-tensioning and part-ejection structure of a mold according to claim 1, wherein: the tensioning pieces are provided with two groups, and the two groups of tensioning pieces are symmetrically arranged on the movable template (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321862674.3U CN220576470U (en) | 2023-07-14 | 2023-07-14 | Insert tensioning and part ejection structure of die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321862674.3U CN220576470U (en) | 2023-07-14 | 2023-07-14 | Insert tensioning and part ejection structure of die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220576470U true CN220576470U (en) | 2024-03-12 |
Family
ID=90120065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321862674.3U Active CN220576470U (en) | 2023-07-14 | 2023-07-14 | Insert tensioning and part ejection structure of die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220576470U (en) |
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2023
- 2023-07-14 CN CN202321862674.3U patent/CN220576470U/en active Active
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