CN109702969B - Inclined-pulling drawing type demoulding structure of large-bridge bent pipe fitting mould - Google Patents
Inclined-pulling drawing type demoulding structure of large-bridge bent pipe fitting mould Download PDFInfo
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- CN109702969B CN109702969B CN201910129786.XA CN201910129786A CN109702969B CN 109702969 B CN109702969 B CN 109702969B CN 201910129786 A CN201910129786 A CN 201910129786A CN 109702969 B CN109702969 B CN 109702969B
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- 150000001875 compounds Chemical class 0.000 claims abstract description 11
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000001746 injection moulding Methods 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
- Moulds, Cores, Or Mandrels (AREA)
Abstract
The utility model provides a big bridge elbow fitting mould is to one side pull formula drawing of patterns structure, including the cover half compound plate, cover half board and cover half insert, movable mould compound plate, the mould foot, movable mould board and movable mould insert, there is the big return bend of shaping between the movable mould insert, two port systems of big return bend have straight flaring, the left and right sides of movable mould board respectively set up outer slider, connect straight flaring insert on the inner wall of outer slider, straight flaring insert cooperatees with straight flaring, set up the slant slide on outer slider, set up oblique pull block on the slant slide, connect the return bend core bar on the inner wall of oblique pull block, the return bend core bar slant passes outer slider and straight flaring insert cooperatees with the inner wall of big return bend, the outer wall connection oblique guide block of oblique pull block connects oblique guide arm under the cover half board, oblique guide arm passes oblique guide block, set up straight guide slot in the middle upper portion of oblique guide slot outside the oblique pull plate, set up the guide block on the front and back both sides wall of outer slider, guide block cooperatees with straight guide slot and oblique guide slot.
Description
Technical Field
The invention relates to a large-bridge bent pipe fitting die inclined-pulling drawing type demoulding structure, and belongs to the field of injection moulds.
Background
The plastic bridge bending pipe fitting is a relatively common plastic pipe fitting, and is processed by adopting an injection mold, and two pipe orifices and two pipe walls of the traditional bridge bending pipe fitting are respectively arranged in the same direction, so that in the processing process of the injection mold, the demolding directions of the pipe orifices and the pipe walls are consistent, and the pipe orifices and the pipe walls can be pulled by only one core pulling action. However, in order to actually need, the prior art develops a large-sized bridging elbow pipe fitting (large elbow pipe), and requires that the pipe orifice and the bottom surface are arranged in parallel, that is, the pipe orifice and the pipe wall are arranged at an oblique angle, so that in the process of designing a mold, a demolding structure with different core pulling directions of the pipe orifice and the pipe wall needs to be developed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an inclined drawing and straightening drawing type demoulding structure of a large-bridge bent pipe fitting mould, which is combined with an inclined guide post and a diagonal drawing plate, and is free from additional power.
The technical scheme of the inclined-pulling drawing type demoulding structure of the large-bridge bent pipe fitting mould is as follows: the fixed die plate is arranged below the fixed die plate, a fixed die insert is arranged in the fixed die plate, a die foot is arranged on the movable die plate, a movable die plate is arranged on the die foot, a movable die insert is arranged on the movable die plate, a large bent pipe is formed by injection molding between the movable die insert and the fixed die insert, two opening parts of the large bent pipe are provided with straight flaring, the fixed die plate is characterized in that outer sliding blocks are respectively arranged on the left side and the right side of the movable die plate, the inner wall of the outer sliding blocks is connected with the straight flaring insert, the straight flaring insert is matched with the straight flaring, an inclined sliding plate is arranged on the outer sliding blocks, an inclined drawing block is arranged on the inclined sliding plate, an inclined guide block is connected to the inner wall of the inclined drawing block, the inclined guide rod is connected to the outer wall of the inclined drawing block under the fixed die plate, the inclined guide rod passes through the inclined guide block, inclined guide blocks are arranged outside the front side and the rear side of the outer guide rod, a straight guide groove is arranged on the lower part of the inclined drawing plate, and the front side wall of the outer sliding block is matched with the straight guide block.
The invention discloses a large bridge elbow fitting mold inclined pulling and straightening drawing type demolding structure, wherein during demolding, a movable mold part and a fixed mold part of the mold are driven by the power of an injection molding machine to separate, a large elbow is left on the movable mold insert, at the moment, a guide block moves downwards along a straight guide groove on an inclined pull plate, so that the outer slide block keeps motionless (does not slide outwards), and an inclined drawing block on the outer slide block moves downwards along with the movable mold plate, under the action of an inclined guide rod connected under the fixed mold plate, the inclined guide block drives the inclined drawing block, the inclined drawing block drives an elbow core rod to draw out, until the elbow core rod finishes drawing from the inner wall of the large elbow, the flat flaring insert and the outer slide block, at the moment, the guide block moves to the inclined guide groove at the lower part of the inclined pull plate, the mold continues to open, the guide block continues to move along the inclined guide groove, the outer slide block is driven to slide outwards, the outer slide block drives the flat flaring insert to draw out, and the flat flaring insert to draw out from the mouth part of the large elbow, and the large elbow is finished. Finally, the formed large bent pipe is ejected out of the mould by an ejection mechanism of the mould, or the large bent pipe is manually taken out of the mould by a worker, and demoulding is completed. The scheme combines the inclined guide post and the inclined pull plate, does not need to put power, smoothly realizes inclined pull and direct pull, has compact structural design, saves cost and reduces investment cost.
According to the inclined-pulling and straight-pulling type demoulding structure of the large-bridge bent pipe fitting mould, the inclined-pulling plate is fixedly arranged below the fixed die plate through the screw connection, and the assembly is convenient and firm. T-shaped guide bars are arranged on two sides of the inclined sliding plate and are matched with two side walls of the inclined guide block, and the guide bars are arranged, so that the inclined guide block slides smoothly. The oblique sliding plate is provided with an empty avoiding groove which is matched with the oblique guide rod, so that the oblique guide rod can move conveniently during guiding.
Drawings
FIG. 1 is a schematic cross-sectional view of a large bridge elbow mold of the present invention with a diagonal draw-out demolding structure;
FIG. 2 is a schematic perspective view of a tilt-draw demolding structure of the present invention;
fig. 3 is a schematic perspective view of a large bridge elbow mold of the present invention.
Detailed Description
The invention relates to a large bridge bent pipe fitting die inclined-pulling type demoulding structure, which is shown in figures 1-3, and comprises a die fixed die compound plate 1 and a movable die compound plate 2, wherein the fixed die plate 3 is arranged below the fixed die compound plate, the fixed die insert 4 is arranged in the fixed die plate, the movable die compound plate is provided with a die foot 5, the movable die plate 6 is arranged on the die foot, the movable die insert 7 is arranged on the movable die plate, an injection-molded large bent pipe 8 is arranged between the movable die insert 7 and the fixed die insert 4, two opening parts of the large bent pipe are provided with straight flares 9, the left side and the right side of the movable die plate 6 are respectively provided with an outer slide block 10, the inner wall of the outer slide block is connected with the straight flaring insert 11, the straight flaring insert 11 is matched with the straight flaring 9, the outer slide block 10 is provided with an inclined slide plate 14, the inclined slide 12 is arranged on the inclined slide plate, the inner wall of the inclined slide block 12 is connected with a bent pipe 13, the core bar 13 obliquely passes through the outer slide block 10 and the flat flaring insert 11 is matched with the inner wall of the large bent pipe 8, the inclined slide block 12 is connected with the outer wall of the inclined slide block 12, the inclined slide plate 15 is connected with the inclined slide plate 3, the inclined slide guide bar 16 is arranged on the inclined slide guide groove 20 and is arranged on the two sides of the inclined slide guide groove 20, and the inclined slide guide groove 20 is arranged on the front side of the inclined slide guide plate, and the inclined slide guide plate is arranged on the inclined slide guide groove 20. During demolding, the movable die part and the fixed die part of the die are driven by the power of the injection molding machine to separate, the movable die insert 7 and the fixed die insert 4 are separated, the large bent pipe 8 is left on the movable die insert 7, at the moment, the guide block 20 moves downwards along the straight guide groove 18 on the inclined pull plate 17, so that the outer slide block 10 keeps motionless (does not slide outwards), the inclined pull block 12 on the outer slide block 10 moves downwards along with the movable die plate, the inclined guide block 15 is driven to slide obliquely under the action of the inclined guide rod 16 connected under the fixed die plate, the inclined guide block drives the inclined pull block 12, the inclined pull block 12 drives the bent pipe core rod 13 to pull core until the bent pipe core rod 13 is pulled out from the inner wall of the large bent pipe, the flat flaring insert 11 and the outer slide block 10, at the moment, the guide block 20 moves to the inclined guide groove 19 at the lower part of the inclined pull plate 17, the die continues to open the die, the guide block 20 continues to move outwards along the inclined guide groove 19, the outer slide block 10 is driven to slide outwards, the outer slide block 10 drives the flat flaring insert 11 to pull core, and the flat flaring insert 11 is pulled out from the large mouth, and core pulling is completed. Finally, the formed large bent pipe is ejected out of the mould by an ejection mechanism of the mould, or the large bent pipe is manually taken out of the mould by a worker, and demoulding is completed. The scheme combines the inclined guide post and the inclined pull plate, does not need to put power, smoothly realizes inclined pull and direct pull, has compact structural design, saves cost and reduces investment cost. The inclined pull plate 17 is fixedly arranged below the fixed die plate 3 by screw connection, and is convenient and firm to assemble. The two sides of the oblique sliding plate 14 are provided with T-shaped guide bars 21, and the T-shaped guide bars 21 are matched with the two side walls of the oblique guide block 15, so that the oblique guide block slides smoothly. The oblique sliding plate 14 is provided with a clearance groove 22, and the clearance groove 22 is matched with the oblique guide rod 16 so as to facilitate the movement of the oblique guide rod during the guide.
Claims (2)
1. The large bridge bending pipe fitting die inclined-pulling straight drawing type demoulding structure comprises a die fixed die compound plate (1) and a movable die compound plate (2), wherein the fixed die compound plate (3) is installed below the fixed die compound plate, the fixed die insert (4) is installed in the fixed die plate, the die foot (5) is installed on the movable die compound plate, the movable die plate (6) is installed on the die foot, the movable die insert (7) is installed on the movable die plate, an injection molded large bent pipe (8) is arranged between the movable die insert (7) and the fixed die insert (4), two opening parts of the large bent pipe are provided with flat flaring (9), and the large bent pipe fitting die mould is characterized in that the left side and the right side of the movable die plate (6) are respectively provided with an outer sliding block (10), the inner wall of the outer sliding block is connected with the flat flaring insert (11), the flat flaring insert (11) is matched with the flat flaring insert (9), an inclined sliding plate (14) is arranged on the outer sliding block (10), the inclined sliding plate (12) is arranged on the inclined sliding block, a core bar (13) is connected on the inner wall of the inclined sliding block (12), the inclined sliding rod (13) penetrates through the outer sliding block (10) and the inclined flaring insert (11) and the inclined sliding block and is matched with the outer guide rod (16) on the outer side of the inclined bent pipe (15), the middle upper part of the inclined pull plate is provided with a straight guide groove (18), the lower part of the inclined pull plate is provided with an inclined guide groove (19), the front side wall and the rear side wall of the outer slide block (10) are provided with guide blocks (20), the guide blocks (20) are matched with the straight guide groove (18) and the inclined guide groove (19), the inclined pull plate (17) is fixedly connected below the fixed die plate (3), the inclined pull plate (14) is provided with a clearance groove (22), the clearance groove (22) is matched with an inclined guide rod (16), during demolding, the movable die part of the injection molding machine drives the die to separate from the fixed die part, the movable die insert (7) is separated from the fixed die insert (4), the large elbow pipe (8) is left on the movable die insert (7), at this moment, the guide blocks (20) move downwards along the straight guide groove (18) on the inclined pull plate (17), the outer slide block (10) keeps motionless, the inclined pull rod (12) on the outer slide block (10) moves downwards along with the movable die plate, the inclined pull rod (16) is driven by the inclined pull rod (15) connected below the fixed die plate to the inclined pull rod (16), the inclined guide rod (12) is driven by the movable die insert (7) to move to the inclined core rod (12) to the inclined guide rod (13) to move to the inclined core rod (13) to the inner side, the die continues to be opened, the guide block (20) continues to move along the inclined guide groove (19) to drive the outer slide block (10) to slide outwards, so that the outer slide block (10) drives the flat flaring insert (11) to loose core, the flat flaring insert (11) is pulled out from the opening of the large bent pipe, and the loose core is completed.
2. The inclined straightening drawing type demoulding structure of the large-bridge bent pipe fitting mould according to claim 1, which is characterized in that T-shaped guide bars (21) are arranged on two sides of the inclined sliding plate (14), and the T-shaped guide bars (21) are matched with two side walls of the inclined guide block (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910129786.XA CN109702969B (en) | 2019-02-21 | 2019-02-21 | Inclined-pulling drawing type demoulding structure of large-bridge bent pipe fitting mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910129786.XA CN109702969B (en) | 2019-02-21 | 2019-02-21 | Inclined-pulling drawing type demoulding structure of large-bridge bent pipe fitting mould |
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| Publication Number | Publication Date |
|---|---|
| CN109702969A CN109702969A (en) | 2019-05-03 |
| CN109702969B true CN109702969B (en) | 2023-12-29 |
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| CN201910129786.XA Active CN109702969B (en) | 2019-02-21 | 2019-02-21 | Inclined-pulling drawing type demoulding structure of large-bridge bent pipe fitting mould |
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