CN214266483U - Injection mold capable of realizing unilateral demolding through cavity interchange - Google Patents
Injection mold capable of realizing unilateral demolding through cavity interchange Download PDFInfo
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- CN214266483U CN214266483U CN202023340758.XU CN202023340758U CN214266483U CN 214266483 U CN214266483 U CN 214266483U CN 202023340758 U CN202023340758 U CN 202023340758U CN 214266483 U CN214266483 U CN 214266483U
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Abstract
The utility model discloses an exchange injection mold of die cavity unilateral drawing of patterns, including movable mould and cover half, be equipped with the cover half carousel on the cover half, the cover half carousel has two cover half die cavities, and two cover half die cavity structures are the same and central symmetrical arrangement. And a fixed die turntable driving device is arranged on one side of the fixed die and drives the two fixed die cavities to interchange positions. Two fixed die ejection mechanisms corresponding to the positions of the two fixed die cavities are arranged on the inner side of the fixed die turntable, and the positions of the two fixed die ejection mechanisms and the positions of the two fixed die cavities are synchronously interchanged. And each fixed die ejection mechanism is provided with an inclined top, the inclined tops are in sliding fit with the fixed die, and one end of each inclined top is movably connected with the fixed die ejection mechanism. The utility model discloses a set up cover half ejection mechanism on the cover half to loose core and cover half ejection mechanism clearance fit, during the die sinking, the movable mould drives ejection mechanism through second nylon mode locking and moves together, and ejection mechanism drives and looses core and withdraw from the back-off, and the cover half ejector pin is ejecting with final product spare, makes it break away from with the cover half die cavity.
Description
Technical Field
The utility model relates to a mold manufacturing technical field, concretely relates to exchange injection mold of die cavity unilateral drawing of patterns.
Background
The combined structure of the plastic product parts of the automobile needs to be respectively injected and assembled together, for example, the product part A, the product part B and the product part C need to be respectively injected and molded by three sets of molds, and are taken out from the respective molds after molding and externally assembled together. Each product part needs a set of independent die to be manufactured, so that the investment of equipment cost is large, the occupied area is large, the process is complex, and the production efficiency is low. The mold capable of realizing in-mold assembly is needed, a combined structure of three product pieces is formed in one set of mold, two of the product pieces are needed to be injected firstly, then the two product pieces are overlapped by changing positions, and then the other product piece is injected to form a final product piece of the combined structure. Because, there is great back-off in the demolding direction behind the final product piece shaping, the core pulling needs to set up in the cover half side, and requires the final product piece to leave the movable mould during the die sinking, leads to the final product piece to be difficult to break away from the die cavity of cover half during the die sinking, leads to the final product piece to be broken by the drawing. Therefore, further improvements are desired in the art.
SUMMERY OF THE UTILITY MODEL
Not enough to above-mentioned prior art, the utility model aims to provide an exchange injection mold of die cavity unilateral drawing of patterns, there is great back-off in the demolding direction after solving the shaping of final product spare, and the core pulling needs to set up in the cover half side, and requires the final product spare to leave the movable mould during the die sinking, and the final product spare is difficult to break away from the die cavity of cover half when leading to the die sinking, leads to the problem that the final product spare is broken.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
the utility model provides an exchange injection mold of die cavity unilateral drawing of patterns, includes movable mould and cover half, and the movable mould arranges with the cover half relatively, is equipped with the cover half carousel on the cover half, and the cover half carousel is disc structure to one side that the cover half is close to the movable mould is installed to embedded mode activity.
Two fixed die cavities are arranged on one side of the fixed die turntable, which is adjacent to the movable die, and the two fixed die cavities have the same structure and are arranged in a centrosymmetric manner.
And one side of the fixed die, which is far away from the movable die, is provided with a fixed die turntable driving device, and the fixed die turntable driving device drives the two fixed die cavities to interchange positions.
Two fixed die ejection mechanisms corresponding to the positions of the two fixed die cavities are arranged on the inner side of the fixed die turntable, and the positions of the two fixed die ejection mechanisms and the positions of the two fixed die cavities are synchronously interchanged.
And each fixed die ejection mechanism is provided with an inclined top, the inclined tops are in sliding fit with the fixed die, and one end of each inclined top is movably connected with the fixed die ejection mechanism.
Furthermore, one side of the movable mold, which is adjacent to the fixed mold, is provided with two movable mold cores with different structures, and any fixed mold cavity can be matched with the two movable mold cores.
Any fixed die cavity can be matched with one of the movable die cores to form an intermediate product part injection molding cavity, after the die is opened, the intermediate product part is left on the fixed die turntable, and after the fixed die turntable rotates 180 degrees, the fixed die cavity with the intermediate product part is matched with the other movable die core to form a final product part injection molding cavity.
Further, the fixed die turntable driving device comprises a gear rack mechanism, a first rotating shaft and a first oil cylinder, wherein the first rotating shaft is matched with the fixed die through a ball bearing, and one end of the first rotating shaft is fixedly connected with the fixed die turntable.
The first oil cylinder is fixedly installed on the fixed die, a piston rod of the first oil cylinder drives the first rotating shaft to rotate through the gear rack mechanism, and the first rotating shaft drives the fixed die turntable to rotate around the axis of the fixed die turntable.
Further, the gear rack mechanism comprises a gear and a rack, the gear is fixedly sleeved on the first rotating shaft, the rack is in linear sliding fit with the fixed die through the first sliding block, and a piston rod of the first oil cylinder is connected with the first sliding block.
One side of the first oil cylinder is provided with two travel switches, the two travel switches are installed on the fixed die at intervals, the first sliding block is provided with a signal rod, one end of the signal rod is fixedly connected with the first sliding block, and the other end of the signal rod is located between the two travel switches.
Furthermore, a turntable positioning mechanism is arranged on the fixed die and comprises a limiting block and two stop blocks, and the two stop blocks are respectively fixed on two opposite sides of the fixed die turntable and rotate along with the fixed die turntable.
The limiting block is located the outside of cover half carousel and links to each other with the cover half is fixed, and the limiting block cooperatees the turned angle of location cover half carousel with the dog respectively.
Furthermore, two first nylon mold locking buckles are symmetrically fixed on one side, close to the movable mold, of the fixed mold turntable, and mold locking sleeves corresponding to the two first nylon mold locking buckles respectively are arranged on the movable mold.
Further, the fixed die ejection mechanism comprises an ejector plate and a fixed die ejector rod arranged on the ejector plate, one end of the fixed die ejector rod is fixedly connected with the ejector plate, and the other end of the fixed die ejector rod extends into the fixed die turntable and is in sliding fit with the fixed die turntable.
Furthermore, two return rods are symmetrically arranged on each ejector plate, one end of each return rod is fixedly connected with the ejector plate, and the other end of each return rod penetrates out of the fixed die turntable and is provided with a second nylon mold locking buckle.
And the movable die is provided with two die locking sleeves matched with the second nylon die locking buckles at the end parts of the two return rods at the position of the final product to be formed, and the second nylon die locking buckles at the end parts of the two return rods at the position of the intermediate product to be formed are arranged on the side of the movable die to avoid gaps.
Furthermore, a sliding rail is fixedly arranged on the ejector plate, a second sliding block in sliding fit with the sliding rail is arranged on the sliding rail, and one end of the inclined top is hinged with the second sliding block.
Further, the cover half is provided with a turntable installation cavity matched with the cover half turntable, and the outer side wall of the cover half turntable and the inner side wall of the turntable installation cavity are conical surfaces.
By adopting the technical scheme, the utility model discloses a beneficial technological effect is: the utility model discloses a set up cover half ejection mechanism on the cover half to loose core and cover half ejection mechanism clearance fit, during the die sinking, the movable mould drives ejection mechanism through second nylon mode locking and moves together, and ejection mechanism drives and looses core and withdraw from the back-off, and the cover half ejector pin is ejecting with final product spare, makes it break away from with the cover half die cavity.
Drawings
Fig. 1 is a schematic structural view of a single-side demolding main body part with interchangeable cavities.
Fig. 2 is a schematic structural diagram of a part of the present invention shown in fig. 1, and shows a cover half rotating disc and a cover half rotating disc driving device.
Fig. 3 is a schematic structural view of another part of the present invention shown in fig. 1, showing a stationary mold rotating disc and related components.
Fig. 4 is an enlarged view of a portion of the structure of the present invention shown in fig. 1, showing the lifter and its associated components.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings:
with reference to fig. 1 to 4, the injection mold with the cavity exchanged and the mold cavity demolded at the single side comprises a movable mold and a fixed mold 2, wherein the movable mold and the fixed mold 2 are arranged oppositely, a fixed mold turntable 21 is arranged on the fixed mold 2, the fixed mold turntable 21 is of a disc structure, and is movably arranged at one side of the fixed mold 2 close to the movable mold in an embedded mode. The fixed die 2 is provided with a rotating disk installation cavity matched with the fixed die rotating disk 21, and the outer side wall of the fixed die rotating disk 21 and the inner side wall of the rotating disk installation cavity are conical surfaces.
Two fixed die cavities 23 are formed in one side, adjacent to the movable die, of the fixed die turntable 21, and the two fixed die cavities 23 are identical in structure and are arranged in a centrosymmetric mode. And one side of the fixed die 2 departing from the movable die is provided with a fixed die turntable driving device 6, and the fixed die turntable driving device 6 drives the two fixed die cavities 23 to interchange positions.
The fixed die turntable driving device 6 comprises a gear 62, a rack 63 mechanism, a first rotating shaft 61 and a first oil cylinder 64, wherein the first rotating shaft 61 is matched with the fixed die 2 through a ball bearing, and one end of the first rotating shaft is fixedly connected with the fixed die turntable 21. The first oil cylinder 64 is fixedly arranged on the fixed die 2, a piston rod of the first oil cylinder 64 drives the first rotating shaft 61 to rotate through the gear 62 and rack 63 mechanism, and the first rotating shaft 61 drives the fixed die turntable 21 to rotate around the axis of the fixed die turntable.
The gear 62 and rack 63 mechanism comprises a gear 62 and a rack 63, the gear 62 is fixedly sleeved on the first rotating shaft 61, the rack 63 is in linear sliding fit with the fixed die 2 through a first sliding block 65, and a piston rod of the first oil cylinder 64 is connected with the first sliding block 65. One side of the first oil cylinder 64 is provided with two travel switches 67, the two travel switches 67 are installed on the fixed die 2 at opposite intervals, the first sliding block 65 is provided with a signal rod 66, one end of the signal rod 66 is fixedly connected with the first sliding block 65, and the other end of the signal rod is positioned between the two travel switches 67.
The fixed die 2 is provided with a turntable positioning mechanism 5, the turntable positioning mechanism 5 comprises a limiting block 51 and two stop blocks 52, and the two stop blocks 52 are respectively fixed on two opposite sides of the fixed die turntable 21 and rotate together with the fixed die turntable 21. The limiting blocks 51 are positioned on the outer side of the fixed die turntable 21 and fixedly connected with the fixed die 2, and the limiting blocks 51 are respectively matched with the stop blocks 52 to position the rotating angle of the fixed die turntable 21.
The movable mould and one side of the fixed mould 2 adjacent to each other are provided with two movable mould cores with different structures, and any fixed mould cavity 23 can be matched with the two movable mould cores. Any fixed die cavity 23 can be matched with one of the movable die cores to form an intermediate product injection molding cavity, and the injection molding machine injects ebonite into the intermediate product injection molding cavity to mold an intermediate product.
After the first die sinking, the intermediate product piece is left in the fixed die turntable 21, the fixed die turntable driving device 6 drives the fixed die turntable 21 to rotate 180 degrees around the first rotating shaft 61, after the fixed die turntable 21 rotates 180 degrees, the movable die and the fixed die 2 are assembled, the fixed die cavity 23 with the intermediate product piece is matched with another movable die core to form a final product piece injection molding cavity, the injection molding machine injects soft rubber into the intermediate product piece injection molding cavity to form the final product piece, the final product piece is a bicolor injection molding piece, and after the second die sinking, the final product piece is ejected out by the movable die side.
One side symmetry that the cover half carousel 21 is close to the movable mould is fixed with two first nylon mode locking buckles 25, be equipped with the mode locking cover that corresponds respectively with two first nylon mode locking 25 buckles on the movable mould, after the movable mould and 2 compound dies of cover half, each nylon mode locking buckle 25 is located the mode locking cover that corresponds respectively, during the die sinking, the friction resistance of mode locking cover to first nylon mode locking buckle 25 outwards pulls out 5mm with cover half carousel 21, makes cover half carousel 21 and cover half 2 break away from certain clearance, receives the friction resistance of cover half 2 when avoiding cover half carousel 21 to rotate.
Two fixed die ejection mechanisms 7 corresponding to the positions of the two fixed die cavities 23 are arranged on the inner side of the fixed die turntable 21, and the positions of the two fixed die ejection mechanisms 7 and the positions of the two fixed die cavities 23 are synchronously interchanged. The fixed die ejection mechanism 7 comprises an ejector plate 71 and a fixed die ejector rod 72 arranged on the ejector plate 71, one end of the fixed die ejector rod 72 is fixedly connected with the ejector plate 71, the other end of the fixed die ejector rod 72 extends into the fixed die turntable 21 and is in sliding fit with the fixed die turntable, and the fixed die ejector rod 72 and the ejector plate 71 move synchronously.
Each ejector plate 71 is symmetrically provided with two return rods, one end of each return rod is fixedly connected with the ejector plate 71, and the other end of each return rod penetrates through the fixed die turntable 21 and is provided with a second nylon mold locking buckle 26. Two mold locking sleeves matched with the second nylon mold locking buckles 26 at the end parts of the two return rods at the position of forming the final product piece are arranged on the movable mold, and the second nylon mold locking buckles 26 at the end parts of the two return rods at the position of forming the intermediate product piece are arranged on the movable mold in a clearance mode.
When the mold is opened, the intermediate product piece is left in the fixed mold cavity 23 where the intermediate product piece is located, and the fixed mold ejector rod 72 corresponding to the position of the fixed mold cavity 23 where the intermediate product piece is located does not move.
And each fixed die ejection mechanism 7 is provided with an inclined top 8, each inclined top 8 is in sliding fit with the fixed die 2, and one end of each inclined top is movably connected with the fixed die ejection mechanism 7. The ejector plate 71 is fixedly provided with a slide rail 81, the slide rail is provided with a second slide block 82 in sliding fit with the slide rail, and one end of the inclined top 8 is hinged with the second slide block 82.
When the mold is opened, the lifter 8 needs to be withdrawn from the reverse buckle, and the fixed mold cavity 23 of the fixed mold 2 can be separated from the final product, so that the final product is ensured to be left on the side of the movable mold. At the moment of opening the die, the movable die moves, the fixed die 2 does not move, the second nylon mold locking buckle 26 is subjected to the frictional resistance of the mold locking sleeve matched with the second nylon mold locking buckle, the fixed die 2 synchronously moves for 30mm with the movable die and drives the inclined top 8 to withdraw from the inverted buckle, the second nylon mold locking buckle 26 is separated from the corresponding mold locking sleeve, the fixed die ejector rod 72 is separated from the final product, and the final product is ejected out from the side of the movable die.
The parts not mentioned in the utility model can be realized by adopting or using the prior art for reference.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also belong to the protection scope of the present invention.
Claims (9)
1. An injection mold capable of realizing single-side demolding in a cavity interchange manner is characterized by comprising a movable mold and a fixed mold, wherein the movable mold and the fixed mold are oppositely arranged, a fixed mold turntable is arranged on the fixed mold, the fixed mold turntable is of a disc structure, and the fixed mold turntable is movably arranged on one side, close to the movable mold, of the fixed mold in an embedded manner;
one side of the fixed die turntable, which is adjacent to the movable die, is provided with two fixed die cavities, and the two fixed die cavities have the same structure and are arranged in a centrosymmetric manner;
a fixed die turntable driving device is arranged on one side of the fixed die, which is far away from the movable die, and drives two fixed die cavities to interchange positions;
two fixed die ejection mechanisms corresponding to the positions of the two fixed die cavities are arranged on the inner side of the fixed die turntable, and the positions of the two fixed die ejection mechanisms and the positions of the two fixed die cavities are synchronously interchanged;
and each fixed die ejection mechanism is provided with an inclined top, the inclined tops are in sliding fit with the fixed die, and one end of each inclined top is movably connected with the fixed die ejection mechanism.
2. An interchangeable cavity single-sided injection mold as in claim 1, wherein the movable mold has two movable mold cores of different structures on the side adjacent to the stationary mold, and any stationary mold cavity can be matched with both movable mold cores;
any fixed die cavity can be matched with one of the movable die cores to form an intermediate product part injection molding cavity, after the die is opened, the intermediate product part is left on the fixed die turntable, and after the fixed die turntable rotates 180 degrees, the fixed die cavity with the intermediate product part is matched with the other movable die core to form a final product part injection molding cavity.
3. An injection mold capable of realizing single-side demolding with interchangeable cavities according to claim 1, wherein the fixed mold turntable driving device comprises a gear rack mechanism, a first rotating shaft and a first oil cylinder, the first rotating shaft is matched with the fixed mold through a ball bearing, and one end of the first rotating shaft is fixedly connected with the fixed mold turntable;
the first oil cylinder is fixedly installed on the fixed die, a piston rod of the first oil cylinder drives the first rotating shaft to rotate through the gear rack mechanism, and the first rotating shaft drives the fixed die turntable to rotate around the axis of the fixed die turntable.
4. The mold cavity interchange one-side demolding injection mold according to claim 3, wherein the rack-and-pinion mechanism comprises a gear and a rack, the gear is fixedly sleeved on the first rotating shaft, the rack is in linear sliding fit with the fixed mold through a first sliding block, and a piston rod of the first oil cylinder is connected with the first sliding block;
one side of the first oil cylinder is provided with two travel switches, the two travel switches are installed on the fixed die at intervals, the first sliding block is provided with a signal rod, one end of the signal rod is fixedly connected with the first sliding block, and the other end of the signal rod is located between the two travel switches.
5. The injection mold capable of realizing single-side demolding with interchangeable cavities as claimed in claim 1, wherein the fixed mold is provided with a turntable positioning mechanism, the turntable positioning mechanism comprises a limiting block and two stop blocks, and the two stop blocks are respectively fixed on two opposite sides of the fixed mold turntable and rotate along with the fixed mold turntable;
the limiting block is located the outside of cover half carousel and links to each other with the cover half is fixed, and the limiting block cooperatees the turned angle of location cover half carousel with the dog respectively.
6. The mold of claim 1, wherein two first nylon mold locks are symmetrically fixed on one side of the fixed mold turntable close to the movable mold, and the movable mold is provided with mold locking sleeves corresponding to the two first nylon mold locks respectively.
7. An injection mold with interchangeable cavity and single-sided demolding, as set forth in claim 1, characterized in that the fixed mold ejection mechanism comprises an ejector plate and a fixed mold ejector rod arranged on the ejector plate, one end of the fixed mold ejector rod is fixedly connected with the ejector plate, and the other end extends into the fixed mold turntable and is in sliding fit with the fixed mold turntable.
8. The injection mold capable of realizing single-side demolding with interchangeable cavities as claimed in claim 7, wherein each ejector plate is symmetrically provided with two return rods, one end of each return rod is fixedly connected with the ejector plate, and the other end of each return rod penetrates through the fixed mold turntable and is provided with a second nylon mold locking buckle;
and the movable die is provided with two die locking sleeves matched with the second nylon die locking buckles at the end parts of the two return rods at the position of the final product to be formed, and the second nylon die locking buckles at the end parts of the two return rods at the position of the final product to be formed are arranged on the side of the movable die to avoid gaps.
9. The mold of claim 7, wherein the ejector plate is fixedly provided with a slide rail, the slide rail is provided with a second slide block in sliding fit with the slide rail, and one end of the slanted top is hinged with the second slide block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023340758.XU CN214266483U (en) | 2020-12-31 | 2020-12-31 | Injection mold capable of realizing unilateral demolding through cavity interchange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023340758.XU CN214266483U (en) | 2020-12-31 | 2020-12-31 | Injection mold capable of realizing unilateral demolding through cavity interchange |
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| Publication Number | Publication Date |
|---|---|
| CN214266483U true CN214266483U (en) | 2021-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023340758.XU Active CN214266483U (en) | 2020-12-31 | 2020-12-31 | Injection mold capable of realizing unilateral demolding through cavity interchange |
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| CN (1) | CN214266483U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114589890A (en) * | 2022-04-12 | 2022-06-07 | 森骏卓越精密智造(深圳)有限公司 | Double-color injection mold |
-
2020
- 2020-12-31 CN CN202023340758.XU patent/CN214266483U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114589890A (en) * | 2022-04-12 | 2022-06-07 | 森骏卓越精密智造(深圳)有限公司 | Double-color injection mold |
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