CN216152938U - One-die multi-cavity light guide piece forming die - Google Patents
One-die multi-cavity light guide piece forming die Download PDFInfo
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- CN216152938U CN216152938U CN202122207963.7U CN202122207963U CN216152938U CN 216152938 U CN216152938 U CN 216152938U CN 202122207963 U CN202122207963 U CN 202122207963U CN 216152938 U CN216152938 U CN 216152938U
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Abstract
The utility model discloses a one-die multi-cavity light guide piece forming die which comprises a top plate, an upper template, a lower template and a bottom plate which are sequentially arranged from top to bottom; the injection molding machine comprises an upper template, a lower template and a pouring system, wherein an upper mold core is arranged in the upper template, a lower mold core is arranged in the lower template, the upper mold core and the lower mold core form eight injection molding cavities in a surrounding manner, and the pouring system is provided with a pouring gate; each injection molding mold cavity is provided with a mold cavity and a mold core, the mold core is in a convex rib shape protruding upwards and is provided with a first inclined plane and a second inclined plane, the length of the first inclined plane is greater than that of the second inclined plane, and the second inclined plane is also provided with a notch; the injection molding cavities are four pairs which are oppositely arranged in pairs, the four pairs of injection molding cavities are arranged in two rows and two columns at intervals, and notches in each pair of injection molding cavities are oppositely arranged; the sprue gate communicates with the recess. The structural layout of the injection mold cavity is ingenious and reasonable, eight products can be produced at one time, the productivity is high, and the production efficiency is high.
Description
Technical Field
The utility model relates to the technical field of injection molds, in particular to a one-mold multi-cavity light guide piece forming mold.
Background
The die is various dies and tools for obtaining required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production.
The light guide part is of a convex rib-shaped structure and is provided with a second inclined surface and a first inclined surface with the length larger than that of the second inclined surface, and the second inclined surface is provided with a notch; because this leaded light volume is less, and the specification of mould is comparatively unified, consequently, how to produce more this leaded light pieces in the mould of same specification, the overall arrangement that needs to carry out the reason to the die cavity setting in the mould. And for a one-die multi-cavity forming die, especially for forming parts with smaller sizes, how to ensure the consistent quality of each part is also an industry difficult problem, which is mainly reflected in that a glue injection structure is difficult to give consideration to the consistent flow rate of glue to each cavity and an ejection structure is inconvenient to arrange.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a mold for molding a light guide member with multiple cavities, wherein the injection mold cavities are four pairs arranged in pairs, the four pairs are arranged in two rows and two columns at intervals, and the notches in each pair are arranged in opposite directions; the structure layout is ingenious and reasonable, eight products can be produced at one time, the productivity is high, and the production efficiency is high.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a one-die multi-cavity light guide piece forming die comprises a top plate, an upper template, a lower template and a bottom plate which are sequentially arranged from top to bottom; an upper mold core is arranged in the upper template, a lower mold core is arranged in the lower template, the upper mold core and the lower mold core form eight injection molding cavities in a surrounding manner, and the upper mold core and the lower mold core are positioned through a tiger mouth; the thimble structure comprises a lower template, a bottom plate and a pouring system, wherein two square iron side plates are arranged between the lower template and the bottom plate, an ejector pin panel and an ejector pin bottom plate which are overlapped up and down are arranged between the two square iron side plates, a plurality of ejector pins are arranged on the ejector pin panel, the bottoms of the ejector pins are abutted against the top of the ejector pin bottom plate, and the bottom of the ejector pin bottom plate is abutted against the top of the bottom plate;
each injection molding mold cavity is provided with a mold cavity which is upwards concavely arranged on an upper mold core and a mold core which is upwards convexly arranged on a lower mold core, the mold core is in a convex rib shape which is upwards convexly arranged, the mold core is provided with a first inclined plane and a second inclined plane, the length of the first inclined plane is greater than that of the second inclined plane, correspondingly, the mold cavity is in a concave rib shape which is upwards concavely arranged, the mold cavity is provided with a third inclined plane and a fourth inclined plane which are matched with the first inclined plane and the second inclined plane, and the mold cavity is matched with the mold core; the second bevel also has a notch; the injection molding cavities are four pairs which are oppositely arranged in pairs, the four pairs of injection molding cavities are arranged in two rows and two columns at intervals, and notches in each pair of injection molding cavities are oppositely arranged; the sprue gate communicates with the recess.
As a preferred scheme, the casting system includes a casting runner and a runner communicating with the casting runner, the casting runner penetrates through the upper mold core, the runner includes a main runner and four sub-runners connected to the main runner, the main runner is spaced between the front row of injection molding cavities and the rear row of injection molding cavities, the sub-runners are spaced between two injection molding cavities of each pair of injection molding cavities, the sub-runners are further connected to two casting branches, and the casting ports are located at output ends of the casting branches.
Preferably, the two casting branches are in the shape of arcs arranged in a centrosymmetric manner.
As a preferable scheme, three first bosses arranged at intervals are convexly arranged on the first inclined surface, correspondingly, three second bosses arranged at intervals are convexly arranged on the third inclined surface, and when the die is closed, the bottom surface of each second boss abuts against the top surface of each first boss.
As a preferred scheme, each injection molding die cavity is correspondingly provided with six ejector pins, and the six ejector pins and the three first bosses are arranged at intervals in a staggered mode.
As a preferred scheme, the four sides of the upper template and the lower template are respectively provided with a guide piece for ensuring the die opening and closing balance degree of the die; the lower template is further provided with a counter, and the counter is arranged beside the guide piece.
As a preferred scheme, damping springs are further arranged between the lower template and the ejector pin panel, and the damping springs are provided with four corners which are located on the ejector pin panel.
As a preferred scheme, the ejector pin support device further comprises two middle support devices used for assisting the ejector pin panel and the ejector pin bottom plate to movably reset, wherein the middle support devices extend into the lower die plate from the bottom of the bottom plate, and the two middle support devices are symmetrically arranged in the left-right direction.
Compared with the prior art, the utility model has obvious advantages and beneficial effects, and specifically, the technical scheme includes that:
the injection molding die is mainly characterized in that the injection molding die cavities are four pairs which are oppositely arranged in pairs, the four pairs of injection molding die cavities are arranged in two rows and two columns at intervals, and notches in each pair of injection molding die cavities are oppositely arranged; the structural layout is ingenious and reasonable, eight products can be produced at one time, the productivity is high, and the production efficiency is high;
secondly, notches in each pair of injection molding cavities are oppositely arranged, and the pouring branches are in arc shapes which are arranged in central symmetry and are better matched with the notches, so that the distances from pouring runners to the notches are the same, the encountered resistances are the same, the flow rates of the glue materials are the same, the time for reaching each glue injection hole is the same, and the consistency of workpieces is ensured;
moreover, each injection molding die cavity is correspondingly provided with six ejector pins, and the six ejector pins and the three first bosses are arranged at intervals in a staggered mode, so that ejection is reasonable.
To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a perspective view of a preferred embodiment of the present invention;
FIG. 2 is an exploded view of the preferred embodiment of the present invention;
FIG. 3 is a perspective view of the upper mold core in accordance with the preferred embodiment of the present invention;
FIG. 4 is a perspective view of a lower mold core according to a preferred embodiment of the present invention;
FIG. 5 is an enlarged partial schematic view at A in FIG. 3;
fig. 6 is a partially enlarged schematic view at B in fig. 4.
The attached drawings indicate the following:
10. top plate 20, cope match-plate pattern
30. Lower template 40, bottom plate
50. Upper die core 51 and die cavity
511. Third inclined plane 512, fourth inclined plane
513. Second boss 60, lower die core
61. Core 611, first inclined plane
612. Second inclined plane 613, notch
614. First boss 70, thimble
80. Pouring system 801 and pouring gate
81. Pouring runner 82 and sub-runner
821. Main flow channel 822 and secondary flow channel
823. Pouring branches 90, guides
100. Counter 110, middle toss.
Detailed Description
Referring to fig. 1 to 6, a specific structure of a preferred embodiment of the present invention is shown, which includes a top plate 10, an upper mold plate 20, a lower mold plate 30, and a bottom plate 40, which are sequentially arranged from top to bottom; an upper mold core 50 is arranged in the upper template 20, a lower mold core 60 is arranged in the lower template 30, the upper mold core 50 and the lower mold core 60 form eight injection molding mold cavities in a surrounding manner, and the upper mold core 50 and the lower mold core 60 are positioned through a tiger mouth (the tiger mouth positioning is convex and concave parts arranged at four corners of the upper mold core 50 and the lower mold core 60); two square iron side plates are arranged between the lower template 30 and the bottom plate 40, an ejector pin panel and an ejector pin bottom plate which are overlapped up and down are arranged between the two square iron side plates, a plurality of ejector pins 70 are arranged on the ejector pin panel, the bottoms of the ejector pins 70 are abutted against the top of the ejector pin bottom plate, the bottom of the ejector pin bottom plate is abutted against the top of the bottom plate 40, the casting system 80 is further included, and the casting system 80 is provided with a casting port 801;
each injection molding cavity is provided with a cavity 51 which is upwards concavely arranged on the upper die core 50 and a core 61 which is upwards convexly arranged on the lower die core 60, the core 61 is in a convex rib shape which is upwards convexly arranged, the core 61 is provided with a first inclined surface 611 and a second inclined surface 612, the length of the first inclined surface 611 is greater than that of the second inclined surface 612, correspondingly, the cavity 51 is in a concave rib shape which is upwards concavely arranged, the cavity 51 is provided with a third inclined surface 511 and a fourth inclined surface 512 which are matched with the first inclined surface 611 and the second inclined surface 612, and the cavity 51 is matched with the core 61; the second inclined surface 612 also has a notch 613; the injection molding cavities are four pairs which are oppositely arranged in pairs, the four pairs of injection molding cavities are arranged in two rows and two columns at intervals, and the notches 613 in each pair of injection molding cavities are oppositely arranged; the pouring gate 801 communicates with the recess 613.
Specifically, the pouring system 80 includes a pouring runner 81 and a branch runner 82 communicating with the pouring runner 81, the pouring runner 81 penetrates through the upper mold core 50, the branch runner 82 includes a main runner 821 and four sub-runners 822 connected to the main runner 821, the main runner 821 is spaced between a front row of injection mold cavities and a rear row of injection mold cavities, the sub-runners 822 are spaced between two injection mold cavities of each pair of injection mold cavities, the sub-runners 822 are further connected to two pouring branches 823, and the pouring gate 801 is located at an output end of the pouring branches 823;
damping springs are further arranged between the lower template 30 and the ejector pin panel, and the four damping springs are arranged at four corners of the ejector pin panel;
in addition, the first inclined surface 611 is convexly provided with three first bosses 614 arranged at intervals, correspondingly, the third inclined surface 511 is convexly provided with three second bosses 513 arranged at intervals, and when the mold is closed, the bottom surface of each second boss 614 abuts against the top surface of each first boss 513.
Further, the two casting branches 823 are arc-shaped and arranged in central symmetry; each injection molding die cavity is correspondingly provided with six ejector pins 70, and the six ejector pins 70 and the three first bosses are arranged at intervals in a staggered mode.
Preferably, the four sides of the upper template 20 and the lower template 30 are provided with guide pieces 90 for ensuring the die opening and closing balance degree of the die; the lower template 30 is further provided with a counter 100, and the counter 100 is arranged beside the guide 90;
the ejector pin structure further comprises two middle support bases 110 used for assisting the movable resetting of the ejector pin panel and the ejector pin base plate, wherein the middle support bases 110 extend into the lower template 30 from the bottom of the base plate 40, and the two middle support bases 110 are symmetrically arranged in the left-right direction.
The design of the utility model is characterized in that:
the injection molding die is mainly characterized in that the injection molding die cavities are four pairs which are oppositely arranged in pairs, the four pairs of injection molding die cavities are arranged in two rows and two columns at intervals, and notches in each pair of injection molding die cavities are oppositely arranged; the structural layout is ingenious and reasonable, eight products can be produced at one time, the productivity is high, and the production efficiency is high;
secondly, notches in each pair of injection molding cavities are oppositely arranged, and the pouring branches are in arc shapes which are arranged in central symmetry and are better matched with the notches, so that the distances from pouring runners to the notches are the same, the encountered resistances are the same, the flow rates of the glue materials are the same, the time for reaching each glue injection hole is the same, and the consistency of workpieces is ensured;
moreover, each injection molding die cavity is correspondingly provided with six ejector pins, and the six ejector pins and the three first bosses are arranged at intervals in a staggered mode, so that ejection is reasonable.
Claims (8)
1. A one-die multi-cavity light guide piece forming die comprises a top plate, an upper template, a lower template and a bottom plate which are sequentially arranged from top to bottom; an upper mold core is arranged in the upper template, a lower mold core is arranged in the lower template, the upper mold core and the lower mold core form eight injection molding cavities in a surrounding manner, and the upper mold core and the lower mold core are positioned through a tiger mouth; the thimble structure comprises a lower template, a bottom plate and a pouring system, wherein two square iron side plates are arranged between the lower template and the bottom plate, an ejector pin panel and an ejector pin bottom plate which are overlapped up and down are arranged between the two square iron side plates, a plurality of ejector pins are arranged on the ejector pin panel, the bottoms of the ejector pins are abutted against the top of the ejector pin bottom plate, and the bottom of the ejector pin bottom plate is abutted against the top of the bottom plate; the method is characterized in that:
each injection molding mold cavity is provided with a mold cavity which is upwards concavely arranged on an upper mold core and a mold core which is upwards convexly arranged on a lower mold core, the mold core is in a convex rib shape which is upwards convexly arranged, the mold core is provided with a first inclined plane and a second inclined plane, the length of the first inclined plane is greater than that of the second inclined plane, correspondingly, the mold cavity is in a concave rib shape which is upwards concavely arranged, the mold cavity is provided with a third inclined plane and a fourth inclined plane which are matched with the first inclined plane and the second inclined plane, and the mold cavity is matched with the mold core; the second bevel also has a notch; the injection molding cavities are four pairs which are oppositely arranged in pairs, the four pairs of injection molding cavities are arranged in two rows and two columns at intervals, and notches in each pair of injection molding cavities are oppositely arranged; the sprue gate communicates with the recess.
2. The one-mode, multi-cavity light guide molding die of claim 1, wherein: the pouring system comprises a pouring runner and a sub-runner communicated with the pouring runner, the pouring runner penetrates through the upper mold core, the sub-runner comprises a main runner and four sub-runners connected to the main runner, the main runner is arranged between a front row of injection molding mold cavities and a rear row of injection molding mold cavities at intervals, the sub-runners are arranged between two injection molding mold cavities of each pair of injection molding mold cavities at intervals, and the sub-runners are further connected with two pouring branches, and pouring ports are located at output ends of the pouring branches.
3. The one-mode, multi-cavity light guide molding die of claim 2, wherein: the two pouring branches are in arc shapes with centrosymmetric arrangement.
4. The one-mode, multi-cavity light guide molding die of claim 1, wherein: the first inclined plane is convexly provided with three first bosses which are arranged at intervals, correspondingly, the third inclined plane is downwards convexly provided with three second bosses which are arranged at intervals, and when the die is closed, the bottom surfaces of the second bosses are abutted against the top surfaces of the first bosses.
5. The one-mode, multi-cavity light guide molding die of claim 4, wherein: six ejector pins are correspondingly arranged in each injection molding mold cavity, and the six ejector pins and the three first bosses are arranged in a staggered and spaced mode.
6. The one-mode, multi-cavity light guide molding die of claim 1, wherein: the four sides of the upper template and the lower template are provided with guide pieces for ensuring the die opening and closing balance degree of the die; the lower template is further provided with a counter, and the counter is arranged beside the guide piece.
7. The one-mode, multi-cavity light guide molding die of claim 1, wherein: and damping springs are further arranged between the lower template and the ejector pin panel and are provided with four corners which are positioned on the ejector pin panel.
8. The one-mode, multi-cavity light guide molding die of claim 7, wherein: the ejector pin plate is characterized by further comprising two middle support parts used for assisting the ejector pin panel and the ejector pin bottom plate to movably reset, wherein the middle support parts extend into the lower die plate from the bottom of the bottom plate and are symmetrically arranged in the left-right direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122207963.7U CN216152938U (en) | 2021-09-13 | 2021-09-13 | One-die multi-cavity light guide piece forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122207963.7U CN216152938U (en) | 2021-09-13 | 2021-09-13 | One-die multi-cavity light guide piece forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216152938U true CN216152938U (en) | 2022-04-01 |
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ID=80849031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122207963.7U Active CN216152938U (en) | 2021-09-13 | 2021-09-13 | One-die multi-cavity light guide piece forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216152938U (en) |
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2021
- 2021-09-13 CN CN202122207963.7U patent/CN216152938U/en active Active
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