CN216804271U - Mold ejecting before core pulling - Google Patents
Mold ejecting before core pulling Download PDFInfo
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- CN216804271U CN216804271U CN202123315398.2U CN202123315398U CN216804271U CN 216804271 U CN216804271 U CN 216804271U CN 202123315398 U CN202123315398 U CN 202123315398U CN 216804271 U CN216804271 U CN 216804271U
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Abstract
The utility model discloses a die capable of ejecting firstly and then pulling a core, which comprises a male die, a female die, an ejection mechanism and a core-pulling mechanism, wherein the male die is provided with a female die; the ejection mechanism comprises a first driving mechanism, an ejection plate in sliding connection with the male die and a straight ejector rod group arranged on the ejection plate; the straight ejector rod group penetrates through the male die and is connected with a straight ejector block arranged on the male die through a wedging block; the first driving mechanism is used for driving the ejector plate to move; the core-pulling mechanism comprises a second driving mechanism, a supporting plate and a core-pulling rod group arranged on the supporting plate. The ejection mechanism and the core-pulling mechanism are arranged, after the injection molding of a product is finished, the straight ejector rod group and the inclined ejector rod group move together along the mold opening direction under the driving of the first driving mechanism to eject the product completely, and then the inclined ejector rod group continues to move along the mold opening direction under the driving of the second driving mechanism, so that the core-pulling process is realized, the risk of scratching the product is completely avoided, the quality of the product is ensured, and meanwhile, the structure is simple and reliable in movement.
Description
Technical Field
The utility model relates to the technical field of injection molds, in particular to a mold which is ejected firstly and then loosed.
Background
When a product developed by the mold is opened, if the product has a side hole, the slide block is generally driven to loose core, and after the core is loose, the ejector rod is used for ejecting the product, so that the mold opening operation is completed. However, some products, such as a load-bearing bracket in the middle of a truck bumper, which is provided with a boss at the side, have a height of about 85mm and a width of 620mm, cannot be opened in the mold; the outer surface of the lug boss is provided with a protrusion with the depth of 3mm, a lateral core pulling structure needs to be designed, the inner side of the lug boss is provided with dense ribs with the height of about 65mm, and the draft angle single face of each rib is 1 degree. The inner side of the boss has very large holding force, and the ejector block needs to be designed to eject. The end face of the product is a full round angle, if the conventional inclined ejector is designed on the outer side, when a mold push plate is ejected by about 20mm, the core pulling requirement is already finished, the width from the inclined ejector to the surface of the product is only about 0.5mm, and the holding force between the product and the male mold core is still not released at this time, so that the product is possibly scratched by the inclined ejector.
Therefore, it is necessary to design a mold with ejection and core pulling to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a mold which is ejected first and then loose core, aiming at the condition that the product is scratched due to demolding when the traditional mold is used for injection molding of a load-bearing support in the middle of a truck bumper.
The technical scheme for realizing the purpose of the utility model is as follows: a mold capable of ejecting firstly and then pulling the core comprises a male mold, a female mold, an ejection mechanism and a core pulling mechanism; the ejection mechanism comprises a first driving mechanism, an ejection plate in sliding connection with the male die and a straight ejector rod group arranged on the ejection plate; the straight ejector rod group penetrates through the male die and is connected with a straight ejector block arranged on the male die through a wedging block; the first driving mechanism is used for driving the ejector plate to move; the core pulling mechanism comprises a second driving mechanism, a supporting plate and a core pulling rod group arranged on the supporting plate; the supporting plate is connected with the male die in a sliding manner and is arranged above the ejector plate; the core-pulling rod group penetrates through the male die and is connected with a core-pulling block arranged on the male die; the core-pulling block is movably arranged on the protrusion and is movably connected with the core-pulling rod group; the second driving mechanism is used for driving the supporting plate to move.
The core pulling mechanism also comprises a mounting seat; a moving groove is formed in the mounting seat; the moving groove comprises a vertical section and an inclined section communicated with the vertical section; the mounting seats are symmetrically arranged on the male die; two ends of the core-pulling block are symmetrically provided with guide blocks; the two guide blocks are respectively connected in the moving grooves on the two mounting seats in a sliding manner; the bottom of the core-pulling block is provided with a chute; the top of the core-pulling rod group is connected in the sliding groove in a sliding manner.
The sliding chute at the bottom of the core-pulling block is a T-shaped groove; the core-pulling rod group is connected in the T-shaped groove in a sliding mode through the T-shaped block.
The first drive mechanism comprises a first drive cylinder; the fixed end of the first driving cylinder is fixedly connected with the male die, and the movable end of the first driving cylinder is fixedly connected with the ejector plate.
The second driving mechanism comprises a second driving cylinder; the fixed end of the second driving cylinder is fixedly connected with the male die, and the movable end of the second driving cylinder is fixedly connected with the supporting plate.
By adopting the technical scheme, the utility model has the following beneficial effects: (1) the ejection mechanism and the core-pulling mechanism are arranged, after the injection molding of a product is finished, the straight ejector rod group and the inclined ejector rod group move together along the mold opening direction under the driving of the first driving mechanism, the product is ejected completely without core-pulling, and then the inclined ejector rod group continues to move along the mold opening direction under the driving of the second driving mechanism, so that the core-pulling process is realized, the risk of scratching the product is completely avoided, the quality of the product is ensured, and meanwhile, the structure is simple and reliable in movement.
(2) The utility model is provided with the mounting seat, and the mounting seat is provided with the moving groove which comprises the vertical section and the inclined section, so that the straight ejector rod group and the inclined ejector rod group can both perform ejection action under the action of the first driving mechanism, and after a product is ejected, the second driving mechanism drives the inclined ejector rod group to move to realize core pulling action, thereby ensuring the stable core pulling action.
(3) The core-pulling rod group is connected with the bottom of the core-pulling block in a way that the T-shaped block is matched with the T-shaped sliding groove, so that the stability of the inclined movement of the core-pulling block is ensured, and the core-pulling rod group is convenient to install.
(4) The first driving mechanism of the utility model adopts the first driving cylinder, and has simple structure and easy installation.
(5) The second driving mechanism adopts the second driving cylinder, so that the driving structure is further simplified, the use cost is lower, and the installation is easy.
Drawings
In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the present disclosure taken in conjunction with the accompanying drawings, in which
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a cross-sectional view of the present invention.
Fig. 3 is a schematic structural diagram of the core-pulling block of the present invention.
Fig. 4 is a schematic structural diagram of the ejection mechanism of the present invention.
The reference numbers in the drawings are:
the core pulling device comprises a male die 1, a female die 2, an ejection mechanism 3, a first driving mechanism 3-1, an ejection plate 3-2, a straight ejector rod group 3-3, a straight ejector block 3-4, a core pulling mechanism 4, a second driving mechanism 4-1, a supporting plate 4-2, a core pulling rod group 4-3, a core pulling block 4-4, a mounting seat 4-5, a moving groove 4-6 and a T-shaped block 7.
Detailed Description
(example 1)
Referring to fig. 1 to 4, the mold for ejecting first and then pulling core of the embodiment includes a male mold 1, a female mold 2, an ejection mechanism 3 and a core-pulling mechanism 4; the ejection mechanism 3 comprises a first driving mechanism 3-1, an ejection plate 3-2 connected with the male die 1 in a sliding manner, and a straight ejector rod group 3-3 arranged on the ejection plate 3-2; the straight ejector rod group 3-3 penetrates through the male die 1 and is connected with a straight ejector block 3-4 arranged on the male die 1 through a wedging block; the first driving mechanism 3-1 is used for driving the ejector plate 3-2 to move; the core pulling mechanism 4 comprises a second driving mechanism 4-1, a supporting plate 4-2 and a core pulling rod group 4-3 arranged on the supporting plate 4-2; the supporting plate 4-2 is connected with the male die 1 in a sliding manner and is arranged above the ejection plate 3-2; the core-pulling rod group 4-3 penetrates through the male die 1 to be connected with a core-pulling block 4-4 arranged on the male die 1; the core-pulling block 4-4 is movably arranged on the convex part and is movably connected with the core-pulling rod group 4-3; the second driving mechanism 4-1 is used for driving the supporting plate 4-2 to move.
Further, in order to ensure the stability of the oblique movement of the core pulling block 4-4, the core pulling mechanism 4 further comprises a mounting seat 4-5; a movable groove 4-6 is arranged on the mounting seat 4-5; the moving grooves 4-6 comprise vertical sections and inclined sections communicated with the vertical sections; the mounting seats 4-5 are symmetrically arranged on the male die 1; two ends of the core-pulling block 4-4 are symmetrically provided with guide blocks; the two guide blocks are respectively connected in a sliding way in the moving grooves 4-6 on the two mounting seats 4-5; the bottom of the core-pulling block 4-4 is provided with a sliding chute; the top of the core-pulling rod group 4-3 is connected in the sliding groove in a sliding manner.
Furthermore, in order to facilitate the installation between the core-pulling rod group 4-3 and the core-pulling block 4-4, the sliding chute at the bottom of the core-pulling block 4-4 is a T-shaped groove; the core-pulling rod group 4-3 is connected in the T-shaped groove in a sliding mode through a T-shaped block 7.
Further, the first driving mechanism 3-1 comprises a first driving cylinder, preferably a hydraulic cylinder; the fixed end of the first driving cylinder is fixedly connected with the male die 1, and the movable end of the first driving cylinder is fixedly connected with the ejector plate 3-2.
Further, the second driving mechanism 4-1 comprises a second driving cylinder, preferably a hydraulic cylinder; the fixed end of the second driving cylinder is fixedly connected with the male die 1, and the movable end of the second driving cylinder is fixedly connected with the supporting plate 4-2.
The working principle of the ejection-before-core-pulling mold of the embodiment is as follows: after the injection molding of a product is finished, under the driving of a first driving mechanism 3-1, a straight ejector rod group 3-3 and an inclined ejector rod group move together along the mold opening direction to completely eject the product without core pulling, and then under the driving of a second driving mechanism 4-1, the inclined ejector rod group continues to move along the mold opening direction, so that the core pulling process is realized, the risk of scratching the product is completely avoided, and the quality of the product is ensured.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides an ejecting mould of loosing core again earlier which characterized in that: comprises a male die (1), a female die (2), an ejection mechanism (3) and a core-pulling mechanism (4); the ejection mechanism (3) comprises a first driving mechanism (3-1), an ejection plate (3-2) in sliding connection with the male die (1) and a straight ejector rod group (3-3) arranged on the ejection plate (3-2); the straight ejector rod group (3-3) penetrates through the male die (1) and is connected with a straight ejector block (3-4) arranged on the male die (1) through a wedging block; the first driving mechanism (3-1) is used for driving the ejector plate (3-2) to move; the core pulling mechanism (4) comprises a second driving mechanism (4-1), a supporting plate (4-2) and a core pulling rod group (4-3) arranged on the supporting plate (4-2); the supporting plate (4-2) is connected with the male die (1) in a sliding manner and is arranged above the ejection plate (3-2); the core-pulling rod group (4-3) penetrates through the male die (1) and is connected with a core-pulling block (4-4) arranged on the male die (1); the core pulling block (4-4) is movably arranged on the convex part and is movably connected with the core pulling rod group (4-3); the second driving mechanism (4-1) is used for driving the supporting plate (4-2) to move.
2. The ejector-first and core-pulling-second mold according to claim 1, wherein: the core-pulling mechanism (4) further comprises a mounting seat (4-5); a moving groove (4-6) is arranged on the mounting seat (4-5); the moving groove (4-6) comprises a vertical section and an inclined section communicated with the vertical section; the mounting seats (4-5) are symmetrically arranged on the male die (1); two ends of the core-pulling block (4-4) are symmetrically provided with guide blocks; the two guide blocks are respectively connected in a sliding way in the moving grooves (4-6) on the two mounting seats (4-5); the bottom of the core-pulling block (4-4) is provided with a sliding chute; the top of the core-pulling rod group (4-3) is connected in the sliding groove in a sliding manner.
3. The ejection-before-core mold according to claim 2, wherein: the sliding groove at the bottom of the core-pulling block (4-4) is a T-shaped groove; the core-pulling rod group (4-3) is connected in the T-shaped groove in a sliding mode through a T-shaped block (7).
4. The ejection-before-core mold according to claim 1, wherein: the first drive mechanism (3-1) comprises a first drive cylinder; the fixed end of the first driving cylinder is fixedly connected with the male die (1), and the movable end of the first driving cylinder is fixedly connected with the ejector plate (3-2).
5. The ejector-first and core-pulling-second mold according to claim 1, wherein: the second driving mechanism (4-1) comprises a second driving cylinder; the fixed end of the second driving cylinder is fixedly connected with the male die (1), and the movable end of the second driving cylinder is fixedly connected with the supporting plate (4-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123315398.2U CN216804271U (en) | 2021-12-27 | 2021-12-27 | Mold ejecting before core pulling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123315398.2U CN216804271U (en) | 2021-12-27 | 2021-12-27 | Mold ejecting before core pulling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216804271U true CN216804271U (en) | 2022-06-24 |
Family
ID=82056976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123315398.2U Active CN216804271U (en) | 2021-12-27 | 2021-12-27 | Mold ejecting before core pulling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216804271U (en) |
-
2021
- 2021-12-27 CN CN202123315398.2U patent/CN216804271U/en active Active
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