CN210791842U - Secondary injection molding die - Google Patents
Secondary injection molding die Download PDFInfo
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- CN210791842U CN210791842U CN201921339567.6U CN201921339567U CN210791842U CN 210791842 U CN210791842 U CN 210791842U CN 201921339567 U CN201921339567 U CN 201921339567U CN 210791842 U CN210791842 U CN 210791842U
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- injection molding
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- die holder
- limiting ring
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Abstract
The utility model discloses a secondary injection molding die, which comprises an upper die base, a lower die base, a movable die, a slide bar and an automatic ejection device, wherein the top of the slide bar is fixedly connected with the upper die base, the bottom of the slide bar is fixedly connected with the lower die base, the middle of the slide bar is connected with the movable die in a sliding way, an injection molding channel is arranged in the upper die base, a die cavity is arranged below the injection molding channel, the injection molding channel is communicated with the die cavity, the bottom surface of the upper die base is provided with a spacing ring, the spacing ring is connected in the die cavity in a sliding way, an electric push rod is arranged in the lower die base, the output end of the electric push rod is fixedly connected with the bottom of the movable die, a T-shaped groove is arranged in the movable die, a mounting plate is fixed on the upper surface of the lower, the utility model is simple in operation, the injection molding cycle is short, and is with low costs.
Description
Technical Field
The utility model relates to an injection moulding technical field specifically is a secondary injection moulding mould.
Background
With the development of science and technology and the continuous improvement of living standards of people, the application field of plastic parts is more and more extensive, the traditional living field is gradually expanded to the fields of high-pressure pipelines, aerospace, deep sea exploration and the like, the quality, thickness and attractiveness of processed plastic products are higher and higher, the conventional injection molding technology is generally only suitable for molding 1-6 mm plastic products, if the conventional injection molding technology is adopted to manufacture thick-wall plastic parts, a semi-formed part is transferred to a cavity injection molding mould for secondary injection molding after being molded in a common injection molding mould, the operation is complex, the injection molding period is long, the cost is higher, and the molded products are difficult to take out in the cavity by manpower, so the secondary injection molding mould is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a secondary injection molding mould to solve the problem that proposes among the above-mentioned background art. A secondary injection molding die comprises an upper die holder, a lower die holder, a movable die, a slide bar and an automatic ejection device, wherein the top of the slide bar is fixedly connected with the upper die holder, the bottom of the slide bar is fixedly connected with the lower die holder, and the middle of the slide bar is slidably connected with the movable die;
an injection molding channel is formed in the upper die base, a die cavity is arranged below the injection molding channel, the injection molding channel is communicated with the die cavity, a limiting ring is arranged on the bottom surface of the upper die base, and the limiting ring is connected in the die cavity in a sliding manner;
an electric push rod is installed in the lower die holder, the output end of the electric push rod is fixedly connected with the bottom of the movable die, a T-shaped groove is formed in the movable die, an installation plate is fixed on the upper surface of the lower die holder, and the installation plate penetrates through the movable die and is connected in the T-shaped groove in a sliding mode;
the T type inslot is equipped with automatic ejecting device, automatic ejecting device includes driving rack, semi-gear, pivot, circumference driving plate, circular arc groove and ejecting pole, the T type inslot is equipped with the semi-gear, the semi-gear axle center hole is passed through the connecting axle and is connected with the mounting panel rotation, be fixed with driving rack on the movable mould of T type groove lateral wall, driving rack and the transmission of semi-gear teeth of a cogwheel meshing, axle center department is kept away from to the semi-gear is fixed with the pivot, rotate the one end that is connected with the circumference driving plate in the pivot, the other end of circumference driving plate is rotated through the pivot and is connected with the ejecting pole, the top is fixed with down the module in the movable mould, ejecting pole sliding connection is in the lower module, the circular arc groove has all been seted up with the crossing department of.
In order to achieve the above object, the utility model provides a following technical scheme:
preferably, the injection molding channel is conical.
Preferably, the limiting ring is connected with the lower module in a sliding mode.
Preferably, a clearance groove is arranged between the movable die and the lower die holder.
Preferably, when the limiting ring is matched with the lower module in a sliding mode, the shape of a formed die cavity is similar to a trapezoid.
Compared with the prior art, the beneficial effects of the utility model are that: the top of the sliding rod is fixedly connected with an upper die base, the bottom of the sliding rod is fixedly connected with a lower die base, the middle of the sliding rod is connected with a movable die in a sliding manner, an electric push rod is installed in the lower die base, the output end of the electric push rod is fixedly connected with the bottom of the movable die, the electric push rod is started to move upwards to push the movable die to move upwards along the sliding rod, a lower die block is fixed at the top of the movable die, a limiting ring is arranged on the bottom surface of the upper die base, after the limiting ring is in sliding fit with the lower die block, the distance between the limiting ring and the lower die block is reduced, the size of a die cavity is adjusted to be one-time injection molding, an injection molding channel is formed in the upper die base and is communicated with the die cavity, thermoplastic fluid is injected into the injection molding channel, after the fluid enters the die cavity, cooling molding, the movable die is internally provided with a T-shaped groove, the upper surface of the lower die holder is fixedly provided with a mounting plate, the mounting plate penetrates through the movable die and is connected in the T-shaped groove in a sliding manner, a half gear is arranged in the T-shaped groove, a shaft center hole of the half gear is rotatably connected with the mounting plate through a connecting shaft, a transmission rack is fixedly arranged on the movable die on the side wall of the T-shaped groove, when the movable die moves downwards to a tooth part of the half gear, the transmission rack is in meshing transmission with the teeth of the half gear, a rotating shaft is fixedly arranged at the position of the half gear, one end of a circumference transmission plate is rotatably connected onto the rotating shaft, the other end of the circumference transmission plate is rotatably connected with an ejector rod through the rotating shaft, the ejector rod is slidably connected into the lower die block, arc grooves are formed in the intersection of the rotation path of the circumference transmission plate and the movable die, when the transmission rack is in, the workpiece is ejected and molded, the operation is simple, the injection molding period is short, and the cost is low.
Drawings
FIG. 1 is a sectional view of the overall structure of the present invention;
FIG. 2 is a sectional view of the structure of the automatic ejector device;
fig. 3 is a sectional view of the structure of the area a in fig. 2.
In the figure: 1. an upper die holder; 2. a lower die holder; 3. moving the mold; 4. a slide bar; 5. an automatic ejector device; 6. Injection molding; 7. a limiting ring; 8. a mold cavity; 9. a lower module; 10. an electric push rod; 11. a T-shaped groove; 12. An arc groove; 13. mounting a plate; 14. a drive rack; 15. a clearance groove; 16. a half gear; 17. a rotating shaft; 18. a circumferential drive plate; 19. a head bar.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a secondary injection molding die comprises an upper die holder 1, a lower die holder 2, a movable die 3, a slide bar 4 and an automatic ejection device 5, wherein the top of the slide bar 4 is fixedly connected with the upper die holder 1, the bottom of the slide bar 4 is fixedly connected with the lower die holder 2, and the middle of the slide bar 4 is slidably connected with the movable die 3;
an injection molding channel 6 is formed in the upper die holder 1, a die cavity 8 is arranged below the injection molding channel 6, the injection molding channel 6 is communicated with the die cavity 8, a limiting ring 7 is arranged on the bottom surface of the upper die holder 1, and the limiting ring 7 is connected in the die cavity 8 in a sliding manner;
an electric push rod 10 is installed in the lower die holder 2, the output end of the electric push rod 10 is fixedly connected with the bottom of the movable die 3, a T-shaped groove 11 is formed in the movable die 3, an installation plate 13 is fixed on the upper surface of the lower die holder 2, and the installation plate 13 penetrates through the movable die 3 and is connected in the T-shaped groove 11 in a sliding mode;
an automatic ejecting device 5 is arranged in the T-shaped groove 11, the automatic ejecting device 5 comprises a transmission rack 14, a half gear 16, a rotating shaft 17, a circumferential transmission plate 18, an arc groove 12 and an ejecting rod 19, a half gear 16 is arranged in the T-shaped groove 11, a shaft center hole of the half gear 16 is rotationally connected with the mounting plate 13 through a connecting shaft, a driving rack 14 is fixed on the movable die 3 on the side wall of the T-shaped groove 11, the driving rack 14 is in meshing transmission with the gear teeth of the half gear 16, a rotating shaft 17 is fixed at the position of the half gear 16 far away from the axis, one end of a circumferential transmission plate 18 is rotatably connected on the rotating shaft 17, the other end of the circumferential driving plate 18 is rotatably connected with an ejector rod 19 through a rotating shaft 17, the inner top of the movable mold 3 is fixed with a lower module 9, the ejector rod 19 is connected in the lower module 9 in a sliding mode, and arc grooves 12 are formed in the intersection positions of the rotating paths of the circumferential driving plates 18 and the movable die 3.
The injection molding channel 6 is conical, so that injection molding is facilitated, overflow and leakage are not prone to occurring, the conical bottom portion is communicated with the mold cavity 8, and the injection molding has little influence on a molded workpiece.
The limiting ring 7 is connected with the lower module 9 in a sliding mode, the filling amount of thermoplastic fluid in the die cavity 8 is controlled, after the thermoplastic fluid is formed through one-time injection molding, the distance between the limiting ring 7 and the lower module 9 is increased, and secondary injection can be conducted.
A clearance groove 15 is formed between the movable die 3 and the lower die holder 2, so that the electric push rod 10 and the movable die 3 are convenient to disassemble and maintain.
When the limiting ring 7 is matched with the lower module 9 in a sliding mode, the shape of the formed die cavity 8 is similar to a trapezoid, and a workpiece formed in the die cavity 8 is convenient to take out.
The working principle is as follows: the top of the sliding rod 4 is fixedly connected with an upper die holder 1, the bottom of the sliding rod is fixedly connected with a lower die holder 2, the middle of the sliding rod is connected with a movable die 3 in a sliding manner, an electric push rod 10 is installed in the lower die holder 2, the output end of the electric push rod 10 is fixedly connected with the bottom of the movable die 3, the electric push rod 10 is started to move upwards to push the movable die 3 to slide upwards along the sliding rod 4, a lower die block 9 is fixed at the top of the movable die 3, a limiting ring 7 is arranged on the bottom surface of the upper die holder 1, after the limiting ring 7 is in sliding fit with the lower die block 9, the distance between the limiting ring 7 and the lower die block 9 is reduced, a die cavity 8 is adjusted to one-time injection molding size, an injection molding channel 6 is formed in the upper die holder 1, the injection molding channel 6 is communicated with the die cavity 8, thermoplastic fluid is injected into the injection molding, after the cooling molding is carried out again, an electric push rod 10 is started to move downwards, a movable mold 3 slides downwards along a sliding rod 4, a T-shaped groove 11 is formed in the movable mold 3, a mounting plate 13 is fixed on the upper surface of a lower mold base 2, the mounting plate 13 penetrates through the movable mold 3 to be connected into the T-shaped groove 11 in a sliding manner, a half gear 16 is arranged in the T-shaped groove 11, a shaft hole of the half gear 16 is connected with the mounting plate 13 in a rotating manner through a connecting shaft, a driving rack 14 is fixed on the movable mold 3 on the side wall of the T-shaped groove 11, when the movable mold 3 moves downwards to a gear tooth part of the half gear 16, the driving rack 14 is in meshing transmission with gear teeth of the half gear 16, a rotating shaft 17 is fixed at a position of the half gear 16, one end of a circumferential driving plate 18 is connected to the rotating shaft 17 in a rotating manner, the other end of the circumferential driving plate 18 is connected with an, therefore, when the transmission rack 14 is engaged with the gear teeth of the half gear 16 for transmission, the circumferential transmission plate 18 takes the rotating shaft 17 as a rotating center and makes a circumferential motion along the arc groove 12, and the ejector rod 19 slides upwards in the lower module 9 along with the circumferential motion of the circumferential transmission plate 18 to eject a formed workpiece.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a secondary injection molding mould, includes upper die base (1), die holder (2), movable mould (3), slide bar (4) and automatic ejecting device (5), its characterized in that: the top of the sliding rod (4) is fixedly connected with an upper die holder (1), the bottom of the sliding rod (4) is fixedly connected with a lower die holder (2), and the middle of the sliding rod (4) is slidably connected with a movable die (3);
an injection molding channel (6) is formed in the upper die holder (1), a die cavity (8) is arranged below the injection molding channel (6), the injection molding channel (6) is communicated with the die cavity (8), a limiting ring (7) is arranged on the bottom surface of the upper die holder (1), and the limiting ring (7) is connected in the die cavity (8) in a sliding manner;
an electric push rod (10) is installed in the lower die holder (2), the output end of the electric push rod (10) is fixedly connected with the bottom of the movable die (3), a T-shaped groove (11) is formed in the movable die (3), an installation plate (13) is fixed on the upper surface of the lower die holder (2), and the installation plate (13) penetrates through the movable die (3) and is connected into the T-shaped groove (11) in a sliding mode;
be equipped with automatic ejecting device (5) in T type groove (11), automatic ejecting device (5) includes driving rack (14), pinion (16), pivot (17), circumference driving plate (18), circular arc groove (12) and ejecting pole (19), be equipped with pinion (16) in T type groove (11), pinion (16) axle center hole is connected through connecting axle and mounting panel (13) rotation, be fixed with driving rack (14) on T type groove (11) lateral wall movable mould (3), driving rack (14) and pinion (16) teeth meshing transmission, axle center department is fixed with pivot (17) is kept away from in pinion (16), the one end of circumference driving plate (18) is connected in the rotation on pivot (17), the other end of circumference driving plate (18) is connected with ejecting pole (19) through pivot (17) rotation, the top is fixed with down module (9) in movable mould (3), the ejector rod (19) is connected in the lower module (9) in a sliding mode, and arc grooves (12) are formed in the intersection positions of the rotating paths of the circumferential driving plates (18) and the movable die (3).
2. The two-shot molding mold of claim 1, wherein: the injection molding channel (6) is conical.
3. The two-shot molding mold of claim 1, wherein: the limiting ring (7) is connected with the lower module (9) in a sliding mode.
4. The two-shot molding mold of claim 1, wherein: a clearance groove (15) is arranged between the movable die (3) and the lower die holder (2).
5. The two-shot molding mold of claim 1, wherein: when the limiting ring (7) is in sliding fit with the lower module (9), the shape of the formed die cavity (8) is similar to a trapezoid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921339567.6U CN210791842U (en) | 2019-08-19 | 2019-08-19 | Secondary injection molding die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921339567.6U CN210791842U (en) | 2019-08-19 | 2019-08-19 | Secondary injection molding die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210791842U true CN210791842U (en) | 2020-06-19 |
Family
ID=71243827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921339567.6U Active CN210791842U (en) | 2019-08-19 | 2019-08-19 | Secondary injection molding die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210791842U (en) |
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2019
- 2019-08-19 CN CN201921339567.6U patent/CN210791842U/en active Active
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