CN110450358B - Injection mold with double-core-pulling structure - Google Patents
Injection mold with double-core-pulling structure Download PDFInfo
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- CN110450358B CN110450358B CN201910751643.2A CN201910751643A CN110450358B CN 110450358 B CN110450358 B CN 110450358B CN 201910751643 A CN201910751643 A CN 201910751643A CN 110450358 B CN110450358 B CN 110450358B
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- slider
- sliding block
- pulling structure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
- B29C45/332—Mountings or guides therefor; Drives therefor
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- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses an injection mold with a double core-pulling structure, which comprises a mold body consisting of a fixed mold and a movable mold, wherein a first cavity and a second cavity which are bilaterally symmetrical are arranged in the mold body, a first core-pulling structure and a second core-pulling structure are arranged on the mold body, a third slider (3) synchronously drives a first slider (1) and a second slider (2) to slide in a mold opening state, the first slider (1) simultaneously slides along the inward direction of a first convex strip (3.2) and the moving direction of the third slider (3), and the second slider (2) simultaneously slides along the inward direction of a second convex strip (3.3) and the moving direction of the third slider (3). According to the die, the third sliding block is additionally arranged to synchronously drive the two sets of core pulling structures, so that the space is saved, parts in the die are reduced, and the synchronism of the two sets of core pulling structures is better.
Description
Technical Field
The invention relates to the technical field of injection molds, in particular to an injection mold with a double-core-pulling structure.
Background
At present, the injection mold with the double-core-pulling structure comprises a mold body consisting of a fixed mold and a movable mold, wherein a first cavity and a second cavity which are symmetrical left and right are arranged in the mold body, a first core-pulling structure and a second core-pulling structure are arranged on the mold body, one end of the first core-pulling structure is located in the first cavity, and one end of the second core-pulling structure is located in the second cavity. Each group of core-pulling structures drives a separate set of driving mechanism to complete the process. Therefore, two sets of driving mechanisms need to be installed on the die, so that more positions of the die are occupied, the installation of other parts is extruded, meanwhile, parts of the die are increased, and the reliability is influenced. And two sets of actuating mechanism need higher cooperation precision to guarantee the action synchronism of first structure of loosing core and second structure of loosing core, need improve the machining precision of structure of loosing core, increased the mould cost.
Disclosure of Invention
The invention aims to solve the technical problem of providing an injection mold with a double core-pulling structure, which adds a third slide block to synchronously drive two sets of core-pulling structures, saves space, reduces parts in the mold and ensures that the two sets of core-pulling structures have better synchronism.
The invention has the technical scheme that an injection mold with a double core-pulling structure is provided, and comprises a mold body consisting of a fixed mold and a movable mold, wherein a first cavity and a second cavity which are bilaterally symmetrical are arranged in the mold body; the first core pulling structure comprises a first slider and a first limiting guide rail, the first slider is linearly and slidably connected in the first limiting guide rail, the second core pulling structure comprises a second slider and a second limiting guide rail, the second slider is linearly and slidably connected in the second limiting guide rail, the first limiting guide rail and the second limiting guide rail are fixed on the die body, the included angle between the first slider and the second slider is an angle alpha during die opening and die closing, the first slider and the second slider are both connected with a third slider which linearly slides, one end of the third slider is provided with a step surface, the step surface is provided with two symmetrical first convex strips and two symmetrical second convex strips, the included angle between the first convex strip and the second convex strip is an angle beta, the bottom of one end of the first slider is provided with a first notch, the bottom of one end of the second slider is provided with a second notch, the first convex strip is movably embedded in the first notch, and the second convex strip is movably embedded in the second notch; in a die assembly state, one end of the first sliding block is positioned on the inner side of the first convex strip, one end of the second sliding block is positioned on the inner side of the second convex strip, and the first sliding block and the second sliding block are symmetrical; in the die sinking state, the third slider drives the first slider and the second slider to slide synchronously, the first slider slides along the inward sliding of the first convex strip and along the moving direction of the third slider simultaneously, and the second slider slides along the inward sliding of the second convex strip and along the moving direction of the third slider simultaneously.
The angle beta is larger than the angle alpha, and the sum of the angle alpha and the angle beta is 180 degrees.
The angle beta is 130 degrees, and the angle alpha is 50 degrees.
The first protruding strips are perpendicular to the first sliding blocks along the length direction, and the second protruding strips are perpendicular to the second sliding blocks along the length direction.
The first bottom surface of the first slider on one side, close to the third slider, of the first notch is attached to the step surface, and the second bottom surface of the second slider on one side, close to the third slider, of the second notch is attached to the step surface.
The first side surface of the first notch, which is far away from one side of the third slider, is attached to the third side surface of the third slider, and the second side surface of the second notch, which is far away from one side of the third slider, is attached to the fourth side surface of the third slider.
The first sliding block is connected in the central hole of the first limiting guide rail in a sliding mode and is limited all around, and the second sliding block is connected in the central hole of the second limiting guide rail in a sliding mode and is limited all around.
After adopting the structure, the invention has the following advantages: the first core-pulling structure and the second core-pulling structure are driven by sliding, so that the position of the driving mechanism can be saved, and the overall appearance of the whole die can be reduced. In addition, in the die sinking state, the third slider drives first slider and second slider to slide in step, first slider slides along the inside slip of first sand grip and slides along the moving direction of third slider simultaneously, the second slider slides along the inside slip of second sand grip and slides along the moving direction of third slider simultaneously, namely the slider slides along a direction, can drive the first slider and the second slider symmetry of two not equidirectional synchronous slip to normal action of loosing core has been guaranteed, and the synchronism is also better.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the present invention from an explosion perspective.
FIG. 3 is a schematic diagram of the second embodiment of the present invention.
FIG. 4 is a schematic diagram of the mold-open state according to the present invention.
Fig. 5 is a schematic structural view of the mold clamping state of the present invention.
FIG. 6 is a schematic structural diagram of a third slider according to the present invention.
Fig. 7 is a schematic top view of the present invention.
Shown in the figure:
1. a first slide block 1.1, a first gap 1.2, a first bottom surface 1.3, a first side surface,
2. a second slide block 2.1, a second gap 2.2, a second bottom surface 2.3, a second side surface,
3. third slider, 3.1, step face, 3.2, first sand grip, 3.3, second sand grip, 3.4, third side, 3.5, fourth side.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1 to 7, the injection mold with a dual core-pulling structure of the present invention includes a mold body composed of a fixed mold and a movable mold, wherein a first cavity and a second cavity are arranged in the mold body, the first cavity and the second cavity are bilaterally symmetric, the mold body is provided with a first core-pulling structure and a second core-pulling structure, one end of the first core-pulling structure is located in the first cavity, and one end of the second core-pulling structure is located in the second cavity; the first core-pulling structure comprises a first slide block 1 and a first limit guide rail, the first slide block 1 is linearly and slidably connected in the first limit guide rail, the second core-pulling structure comprises a second slide block 2 and a second limit guide rail, the second slide block 2 is linearly and slidably connected in the second limit guide rail, the first limit guide rail and the second limit guide rail are fixed on a mould body, an included angle alpha between the first slide block 1 and the second slide block 2 is 50 degrees when the mould is opened and closed, the first slide block 1 and the second slide block 2 are both connected with a third slide block 3 which linearly slides,
one end of third slider 3 is equipped with step face 3.1, be equipped with the first sand grip 3.2 and the second sand grip 3.3 of two symmetries on the step face 3.1, the contained angle beta of first sand grip 3.2 and second sand grip 3.3 is 130, first sand grip 3.2 is perpendicular along length direction with the edge length direction of first slider 1, second sand grip 3.3 is perpendicular along length direction with the edge length direction of second slider 2.
A first notch 1.1 is formed in the bottom of one end of the first sliding block 1, a second notch 2.1 is formed in the bottom of one end of the second sliding block 2, the first convex strip 3.2 is movably embedded in the first notch 1.1, and the second convex strip 3.3 is movably embedded in the second notch 2.1;
the first bottom surface 1.2 of the first slider 1 close to one side of the third slider 3 on the first notch 1.1 is attached to the step surface 3.1, and the second bottom surface 2.2 of the second slider 2 close to one side of the third slider 3 on the second notch 2.1 is attached to the step surface 3.1. The first side face 1.3 of the first notch 1.1, which is far away from one side of the third slide block 3, is attached to the third side face 3.4 of the third slide block 3, and the second side face 2.3 of the second notch 2.1, which is far away from one side of the third slide block 3, is attached to the fourth side face 3.5 of the third slide block 3. The first sliding block 1 is connected in the center hole of the first limiting guide rail in a sliding mode and is limited all around, and the second sliding block 2 is connected in the center hole of the second limiting guide rail in a sliding mode and is limited all around.
As shown in fig. 5, in the mold clamping state, one end of the first slider 1 is located inside the first protruding strip 3.2, one end of the second slider 2 is located inside the second protruding strip 3.3, and the first slider 1 and the second slider 2 are symmetrical; the angle beta is larger than the angle alpha, and the sum of the angle alpha and the angle beta is 180 degrees. In this embodiment, the angle β is 130 degrees, and the angle α is 50 degrees.
As shown in fig. 4, in the state of opening the mold, the third slider 3 synchronously drives the first slider 1 and the second slider 2 to slide, the first slider 1 simultaneously slides inward along the first protruding strip 3.2 and slides along the moving direction of the third slider 3, and since the moving direction of the first slider 1 is limited by the first limit guide, only the first slider can slide linearly, and the third slider 3 also moves linearly under the driving action of the guide rod, and a certain included angle exists between the first slider 1 and the third slider 3, so a certain sliding must exist at the joint of the first slider 1 and the second slider 3, so as to ensure that the included angle between the first slider 1 and the second slider is not changed, specifically, the first notch 1.1 of the first slider 1 slides linearly along the first protruding block 3.2, and the first slider 1 slides forward, and the final moving direction is the linear movement along the first limit guide. The second slider 2 slides simultaneously along the inward direction of the second ribs 3.3 and along the moving direction of the third slider 3. The principle is the same as that of the first sliding block 1, so that the second notch 2.1 of the second sliding block 2 synchronously slides along the second bump 3.3 in a straight line.
Claims (6)
1. An injection mold with a double core-pulling structure comprises a mold body consisting of a fixed mold and a movable mold, wherein a first cavity and a second cavity which are bilaterally symmetrical are arranged in the mold body; the method is characterized in that: the first core pulling structure comprises a first slider (1) and a first limiting guide rail, the first slider (1) is in linear sliding connection with the first limiting guide rail, the second core pulling structure comprises a second slider (2) and a second limiting guide rail, the second slider (2) is in linear sliding connection with the second limiting guide rail, the first limiting guide rail and the second limiting guide rail are fixed on a die body, the included angle between the first slider (1) and the second slider (2) is an angle alpha when the die is opened and closed, the first slider (1) and the second slider (2) are both connected with a third slider (3) which slides in the same linear manner, one end of the third slider (3) is provided with a step surface (3.1), the step surface (3.1) is provided with two symmetrical first raised strips (3.2) and second raised strips (3.3), the included angle between the first raised strips (3.2) and the second raised strips (3.3) is an angle beta, a first notch (1.1) is formed in the bottom of one end of the first sliding block (1), a second notch (2.1) is formed in the bottom of one end of the second sliding block (2), the first convex strip (3.2) is movably embedded into the first notch (1.1), and the second convex strip (3.3) is movably embedded into the second notch (2.1); in a die assembly state, one end of the first sliding block (1) is positioned on the inner side of the first convex strip (3.2), one end of the second sliding block (2) is positioned on the inner side of the second convex strip (3.3), and the first sliding block (1) and the second sliding block (2) are symmetrical; in a die opening state, the third slider (3) synchronously drives the first slider (1) and the second slider (2) to slide, the first slider (1) simultaneously slides along the inward direction of the first convex strips (3.2) and the moving direction of the third slider (3), and the second slider (2) simultaneously slides along the inward direction of the second convex strips (3.3) and the moving direction of the third slider (3); the angle beta is larger than the angle alpha, and the sum of the angle alpha and the angle beta is 180 degrees.
2. The injection mold with the double core pulling structure as set forth in claim 1, wherein: the angle beta is 130 degrees, and the angle alpha is 50 degrees.
3. The injection mold with the double core pulling structure as set forth in claim 1, wherein: the first protruding strips (3.2) are perpendicular to the first sliding block (1) along the length direction, and the second protruding strips (3.3) are perpendicular to the second sliding block (2) along the length direction.
4. The injection mold with the double core pulling structure as set forth in claim 1, wherein: the first bottom surface (1.2) of the first sliding block (1) close to one side of the third sliding block (3) on the first notch (1.1) is attached to the step surface (3.1), and the second bottom surface (2.2) of the second sliding block (2) close to one side of the third sliding block (3) on the second notch (2.1) is attached to the step surface (3.1).
5. The injection mold with the double core pulling structure as set forth in claim 1, wherein: a first side face (1.3) on one side of the first notch (1.1), which is far away from the third sliding block (3), is attached to a third side face (3.4) of the third sliding block (3), and a second side face (2.3) on one side of the second notch (2.1), which is far away from the third sliding block (3), is attached to a fourth side face (3.5) of the third sliding block (3).
6. The injection mold with the double core pulling structure as set forth in claim 1, wherein: the first sliding block (1) is connected in the center hole of the first limiting guide rail in a sliding mode and is limited all around, and the second sliding block (2) is connected in the center hole of the second limiting guide rail in a sliding mode and is limited all around.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910751643.2A CN110450358B (en) | 2019-08-15 | 2019-08-15 | Injection mold with double-core-pulling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910751643.2A CN110450358B (en) | 2019-08-15 | 2019-08-15 | Injection mold with double-core-pulling structure |
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| Publication Number | Publication Date |
|---|---|
| CN110450358A CN110450358A (en) | 2019-11-15 |
| CN110450358B true CN110450358B (en) | 2021-09-21 |
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| CN201910751643.2A Active CN110450358B (en) | 2019-08-15 | 2019-08-15 | Injection mold with double-core-pulling structure |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201279862Y (en) * | 2008-07-18 | 2009-07-29 | 比亚迪股份有限公司 | Injection mold |
| CN204894409U (en) * | 2015-07-16 | 2015-12-23 | 太仓求精塑模有限公司 | Injection mold with secondary mechanism of loosing core |
| CN206703444U (en) * | 2017-05-09 | 2017-12-05 | 苏州固睿特模塑制造有限公司 | Three template dies with double-deck side core-pulling mechanism |
| CN208006192U (en) * | 2018-04-02 | 2018-10-26 | 长城汽车股份有限公司 | A kind of demolding structure |
| CN108890991A (en) * | 2018-06-08 | 2018-11-27 | 胡芳 | A kind of double-slider extracting core mechanism and core pulling method twice |
| CN109130105A (en) * | 2018-11-23 | 2019-01-04 | 常州大学 | A kind of rod spring side core-pulling mechanism |
| CN209207962U (en) * | 2018-12-12 | 2019-08-06 | 河北康泰塑胶科技有限公司 | Core-pulling device is used in a kind of production of pipe fitting |
-
2019
- 2019-08-15 CN CN201910751643.2A patent/CN110450358B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201279862Y (en) * | 2008-07-18 | 2009-07-29 | 比亚迪股份有限公司 | Injection mold |
| CN204894409U (en) * | 2015-07-16 | 2015-12-23 | 太仓求精塑模有限公司 | Injection mold with secondary mechanism of loosing core |
| CN206703444U (en) * | 2017-05-09 | 2017-12-05 | 苏州固睿特模塑制造有限公司 | Three template dies with double-deck side core-pulling mechanism |
| CN208006192U (en) * | 2018-04-02 | 2018-10-26 | 长城汽车股份有限公司 | A kind of demolding structure |
| CN108890991A (en) * | 2018-06-08 | 2018-11-27 | 胡芳 | A kind of double-slider extracting core mechanism and core pulling method twice |
| CN109130105A (en) * | 2018-11-23 | 2019-01-04 | 常州大学 | A kind of rod spring side core-pulling mechanism |
| CN209207962U (en) * | 2018-12-12 | 2019-08-06 | 河北康泰塑胶科技有限公司 | Core-pulling device is used in a kind of production of pipe fitting |
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| CN110450358A (en) | 2019-11-15 |
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