CN214562702U - Combined delay core-pulling mechanism of injection mold - Google Patents
Combined delay core-pulling mechanism of injection mold Download PDFInfo
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- CN214562702U CN214562702U CN202120291368.3U CN202120291368U CN214562702U CN 214562702 U CN214562702 U CN 214562702U CN 202120291368 U CN202120291368 U CN 202120291368U CN 214562702 U CN214562702 U CN 214562702U
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Abstract
The utility model discloses an injection mold's joint delays mechanism of loosing core, the output of hydro-cylinder piston rod is connected with the slide, the slide is located the fixed plate top and is connected with fixed plate sliding connection, one side that the hydro-cylinder was kept away from to the slide is equipped with first inclined plane, be equipped with the step hole in the first inclined plane, be equipped with the big slider with first inclined plane matched with on the first inclined plane, big slider endotheca has rather than sliding connection's central mold insert, central mold insert bottom surface and step hole bottom surface swing joint, big slider upper end is equipped with little slider, little slider and central mold insert swing joint to with big slider sliding connection, little slider inboard is equipped with the boss, the boss cooperatees with the finished product back-off. The utility model discloses an injection mold's joint delay mechanism of loosing core, simple structure, the reliable operation, the slider pitched roof structure occupation space of adoption is less, looses the core through joint delay, realizes the drawing of patterns of product, has simplified injection mold, has reduced the comprehensive cost.
Description
Technical Field
The utility model belongs to the technical field of injection mold, in particular to injection mold's joint delay mechanism of loosing core.
Background
An injection mould is a tool for producing plastic products, and injection moulding is a processing method used in batch production of parts with complex shapes, and specifically refers to that materials melted by heating are injected into a cavity from high pressure, and after cooling and solidification, a formed product is obtained
The method is rapidly developed in the modern mold industry, the plastic mold is widely applied in industrial production, and the structural requirement of the plastic mold is higher and higher. There is the back-off generally in the die sinking direction in the plastic mould, and the back-off is including loosing core drawing of patterns direction and the crossing flange of the orientation of opening and shutting of mould, buckle or protruding muscle structure, but has big back-off in slider moving direction, and back-off drawing of patterns space is little, and the drawing of patterns has blockking, and conventional oblique top structure occupies drawing of patterns space with the slider structure greatly, can not the solution problem.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to overcome not enough above, the utility model aims at providing an injection mold's joint delays mechanism of loosing core, its simple structure, the reliable operation, the slider pitched roof structure occupation space of adoption is less, looses the core through joint delay, realizes the drawing of patterns of product, has simplified injection mold, has reduced the comprehensive cost.
The technical scheme is as follows: a combined delay core-pulling mechanism of an injection mold comprises a fixed plate, an oil cylinder, a sliding seat, a large sliding block, a small sliding block and a central insert, the output end of the piston rod of the oil cylinder is connected with a sliding seat which is arranged above the fixed plate and is connected with the fixed plate in a sliding way, a first inclined plane is arranged on one side of the sliding seat far away from the oil cylinder, a step hole is arranged in the first inclined plane, the bottom surface of the step hole is parallel to the bottom surface of the sliding seat, a large sliding block matched with the first inclined surface is arranged on the first inclined surface, the large slide block is internally sleeved with a central insert which is connected with the large slide block in a sliding way, the bottom surface of the central insert is movably connected with the bottom surface of the stepped hole, the upper end of the big slide block is provided with a small slide block which is arranged in a central symmetry way, the small slide block is movably connected with the central insert, and is connected with the big sliding block in a sliding way, and the inner side of the small sliding block is provided with a boss which is matched with the back-off of the finished product. After the die is opened, the oil cylinder is pulled backwards, the sliding seat is pulled to retreat along the sliding rail of the fixed plate, the large sliding block falls down in the first inclined plane along the core-pulling direction, the small sliding block starts to be separated from the inverted buckle under the interaction of the large sliding block, the central insert moves leftwards on the bottom surface of the step to control the delayed core-pulling, and in a certain distance from the beginning of the retreat of the large sliding block, the central insert is still relative to the fixed plate and the product and slides relative to the large sliding block due to the action of a plane position; when the small sliding blocks are completely separated, the central insert is translated out of the bottom surface of the step, the central insert and the large sliding block do not slide relatively any more, the central insert and the large sliding block are driven by the large sliding block to fall along the first inclined plane together, the central insert and the large sliding block retreat for core pulling together, the two small sliding blocks are also driven by the large sliding block and the central insert to move downwards together until all moving parts are completely separated from the inverted buckle surface of the product, and the core pulling action is completed.
Further, in the combined delay core-pulling mechanism of the injection mold, the first inclined plane is provided with a T-shaped chute, and the step hole is formed in the bottom surface of the T-shaped chute.
Furthermore, according to the combined delay core-pulling mechanism of the injection mold, the lower end of the large sliding block is provided with the second inclined surface, and the second inclined surface is matched with the T-shaped sliding groove and is in sliding connection with the T-shaped sliding groove, so that the large sliding block can move quickly and stably without displacement.
Furthermore, in the combined delay core-pulling mechanism of the injection mold, a stepped hole is formed in the large slide block, and the central insert is matched with the stepped hole and is in sliding connection with the stepped hole.
Furthermore, in the combined delay core-pulling mechanism of the injection mold, the central insert is provided with a sliding table, the sliding table is matched with the stepped hole and is in sliding connection with the stepped hole, and the top surface of the sliding table is matched with the stepped surface to limit the sliding distance of the central insert. The extension time is controlled through the matching of the sliding table and the stepped hole.
Furthermore, in the combined delay core-pulling mechanism of the injection mold, the upper end of the large sliding block is provided with the tapered hole, and the small sliding block is arranged in the tapered hole and matched with the tapered hole.
Furthermore, in the combined delay core-pulling mechanism of the injection mold, a third inclined plane is arranged on the outer side of the small sliding block, and the third inclined plane is matched with the inclined planes on the two sides of the tapered hole and is in sliding connection with the tapered hole. The small sliding block is matched with the third inclined plane, so that the small sliding block is separated from the reverse buckle and is stable and quick with a home.
Furthermore, in the combined delay core-pulling mechanism of the injection mold, the lower end of the small slide block is provided with the guide post matched with the central insert, and the two guide posts extend into the guide hole of the central insert and are oppositely arranged. The guide hole guides the moving direction of the small sliding block, and the problem that the boss and a finished product are not accurately positioned in a reverse buckling mode is solved.
Furthermore, according to the combined delay core-pulling mechanism of the injection mold, the blind holes are formed in the guide pillars, the springs are arranged in the blind holes, and two ends of each spring are respectively abutted to the bottom surfaces of the two blind holes. When the die is closed, the spring is compressed into the blind hole, the opposite surfaces of the two guide posts are abutted, and when the large slide block moves downwards, the two small slide blocks always slide along the inclined surface of the tapered hole under the action of the elastic force of the spring, so that the finished product is popped up to be reversely buckled; and the spring is matched with the conical hole to play a role in locking, so that the small sliding block is self-locked, and the phenomenon that the small sliding block moves to influence the product quality during injection molding is avoided.
Above-mentioned technical scheme can find out, the utility model discloses following beneficial effect has:
1. the combined delay core-pulling mechanism of the injection mold of the utility model has the advantages that the spring is matched with the conical hole to play a role of locking, so that the small slide block is self-locked, the small slide block is prevented from moving during injection molding to influence the molding quality, and the product quality is improved;
2. injection mold's joint delay mechanism of loosing core, through the cooperation of big slider with little slider, have the hydro-cylinder once to accomplish twice action of loosing core, reach the effect of delaying to loose core, and the slider of adoption pushes up structure occupation space to one side less, looses core through joint delay, realizes the drawing of patterns of product, has simplified injection mold, has reduced the comprehensive cost.
Drawings
Fig. 1 is a schematic structural diagram (mold closing state) of a combined delay core-pulling mechanism of an injection mold according to the present invention;
fig. 2 is an enlarged schematic view of a part a of a combined delay core-pulling mechanism of an injection mold according to the present invention;
fig. 3 is a schematic structural view of a lower slider of the combined delay core-pulling mechanism of the injection mold according to the present invention, which is separated from the reverse buckle;
fig. 4 is a schematic enlarged view of a part B of a combined delay core-pulling mechanism of an injection mold according to the present invention;
fig. 5 is a schematic view of a complete demolding partial structure of a combined delay core-pulling mechanism of an injection mold according to the present invention;
in the figure: the device comprises a fixing plate 1, an oil cylinder 2, a sliding seat 3, a first inclined surface 31, a stepped hole 32, a 33T-shaped sliding groove, a large sliding block 4, a second inclined surface 41, a stepped hole 42, a tapered hole 43, a small sliding block 5, a boss 51, a third inclined surface 52, a guide pillar 53, a blind hole 54, a center insert 6, a sliding table 61, a guide hole 62, a spring 7 and a finished product 8.
Detailed Description
The invention will be further elucidated with reference to the drawings and the specific embodiments.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element 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", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Example 1
As shown in fig. 1-5, the combined delay core-pulling mechanism of an injection mold of the present invention comprises a fixing plate 1, an oil cylinder 2, a slide seat 3, a large slide block 4, a small slide block 5 and a central insert 6, wherein an output end of a piston rod of the oil cylinder 2 is connected with the slide seat 3, the slide seat 3 is arranged above the fixing plate 1 and is slidably connected with the fixing plate 1, one side of the slide seat 3 away from the oil cylinder 2 is provided with a first inclined surface 31, a step hole 32 is arranged in the first inclined surface 31, a bottom surface of the step hole 32 is parallel to a bottom surface of the slide seat 3, the first inclined surface 31 is provided with the large slide block 4 matched with the first inclined surface 31, the large slide block 4 is internally sleeved with the central insert 6 slidably connected therewith, the bottom surface of the central insert 6 is movably connected with the bottom surface of the step hole 32, the upper end of the large slide block 4 is provided with the small slide block 5 symmetrically arranged at the center, the small slide block 5 is movably connected with the central insert 6, and is connected with the big slide block 4 in a sliding way, a boss 51 is arranged on the inner side of the small slide block 5, and the boss 51 is matched with the finished product 8 in an inverted buckle way. After the die is opened, the oil cylinder 2 is pulled backwards, the sliding seat 3 is pulled to retreat along the sliding rail of the fixing plate 1, the large sliding block 4 falls down in the first inclined plane 31 along the core-pulling direction, the small sliding block 5 starts to be separated from the inverted buckle of the finished product 8 under the interaction of the large sliding block 4, the central insert 6 moves leftwards on the bottom surface of the step hole 32 to control the delayed core-pulling, and the central insert 6 is static relative to the fixing plate 1 and the finished product 8 and slides relative to the large sliding block 4 due to the action of the plane position of the bottom surface of the step hole 32 at the beginning of the retreat of the large sliding block 4; when the small slide blocks 5 are completely separated, the central insert 6 is translated out of the bottom surface of the step hole 32, the central insert 6 and the large slide block 4 do not slide relatively any more, the central insert 6 and the large slide block 4 are driven by the large slide block 4 to fall along the first inclined surface 31 together, the central insert 6 and the large slide block 4 retreat for core pulling together, the two small slide blocks 5 are also driven by the large slide block 4 and the central insert 6 to move downwards together until all moving parts are completely separated from the back-off surface of the product, and the core pulling action is completed.
Example 2
As shown in fig. 1-5, the combined delay core-pulling mechanism of an injection mold of the present invention comprises a fixing plate 1, an oil cylinder 2, a slide seat 3, a large slide block 4, a small slide block 5 and a central insert 6, wherein an output end of a piston rod of the oil cylinder 2 is connected with the slide seat 3, the slide seat 3 is arranged above the fixing plate 1 and is slidably connected with the fixing plate 1, one side of the slide seat 3 away from the oil cylinder 2 is provided with a first inclined surface 31, a step hole 32 is arranged in the first inclined surface 31, a bottom surface of the step hole 32 is parallel to a bottom surface of the slide seat 3, the first inclined surface 31 is provided with the large slide block 4 matched with the first inclined surface 31, the large slide block 4 is internally sleeved with the central insert 6 slidably connected therewith, the bottom surface of the central insert 6 is movably connected with the bottom surface of the step hole 32, the upper end of the large slide block 4 is provided with the small slide block 5 symmetrically arranged at the center, the small slide block 5 is movably connected with the central insert 6, and is connected with the big slide block 4 in a sliding way, a boss 51 is arranged on the inner side of the small slide block 5, and the boss 51 is matched with the finished product 8 in an inverted buckle way. After the mold is opened, the oil cylinder 2 is pulled backwards, the sliding seat 3 is pulled to retreat along the sliding rail of the fixing plate 1, the large sliding block 4 falls down along the core-pulling direction in the first inclined plane 31, the small sliding block 5 starts to be separated from the inverted buckle of the finished product 8 under the interaction of the large sliding block 4, the central insert 6 moves leftwards on the bottom surface of the step hole 32 to control the delayed core-pulling, and the central insert 6 is static relative to the fixing plate 1 and the finished product 8 and slides relative to the large sliding block 4 within a certain distance from the backward retreat of the large sliding block 4 due to the action of the plane position of the bottom surface of the step hole 32; when the small slide blocks 5 are completely separated, the central insert 6 is translated out of the bottom surface of the step hole 32, the central insert 6 and the large slide block 4 do not slide relatively any more, the central insert 6 and the large slide block 4 are driven by the large slide block 4 to fall along the first inclined surface 31 together, the central insert 6 and the large slide block 4 retreat for core pulling together, the two small slide blocks 5 are also driven by the large slide block 4 and the central insert 6 to move downwards together until all moving parts are completely separated from the back-off surface of the product, and the core pulling action is completed.
The first inclined surface 31 is provided with a T-shaped sliding groove 33, and the stepped hole 32 is formed in the bottom surface of the T-shaped sliding groove 33.
The lower end of the large sliding block 4 is provided with a second inclined surface 41, and the second inclined surface 41 is matched with the T-shaped sliding groove 33 and is in sliding connection with the T-shaped sliding groove, so that the large sliding block can move quickly and stably without displacement.
The inside of the big sliding block 4 is provided with a stepped hole 42, and the central insert 6 is matched with the stepped hole 42 and is connected with the stepped hole 42 in a sliding manner.
The center insert 6 is provided with a sliding table 61, the sliding table 61 is matched with the stepped hole 42 and is in sliding connection with the stepped hole, and the top surface of the sliding table 61 is matched with the stepped surface of the stepped hole 42 to limit the sliding distance of the center insert 6. Through the cooperation of slip table 61 and shoulder hole 42, the moving distance of control center mold insert and big slider to control the extension time.
The upper end of the big sliding block 4 is provided with a tapered hole 43, and the small sliding block 5 is arranged in the tapered hole 43 and matched with the tapered hole 43.
And a third inclined surface 52 is arranged on the outer side of the small sliding block 5, and the third inclined surface 52 is matched with the inclined surfaces on the two sides of the tapered hole 43 and is in sliding connection with the tapered hole. The small sliding block 5 is matched with the third inclined surface 52, so that the small sliding block 5 is separated from the back-off more stably and rapidly.
The lower end of the small slide block 5 is provided with guide posts 53 matched with the central insert 6, and the two guide posts 53 extend into the guide holes 62 of the central insert 6 and are oppositely arranged. The guide hole 62 guides the moving direction of the small slide block 5, and the problem that the boss 51 and the finished product 8 are not accurately positioned in an inverted buckling mode is avoided.
The guide post 53 is internally provided with a blind hole 54, the blind hole 54 is internally provided with a spring 7, and two ends of the spring 7 are respectively abutted against the bottom surfaces of the two blind holes 54. When the die is closed, the spring 7 is compressed into the blind hole 54, the opposite surfaces of the two guide posts 53 are abutted, when the large slide block 4 moves downwards, the two small slide blocks 5 slide along the inclined surface of the tapered hole 43 all the time under the action of the elastic force of the spring 7, and then the finished product 8 is ejected out; and the spring 7 is matched with the tapered hole 43 to play a role in locking, so that the small sliding block 5 is self-locked, and the phenomenon that the small sliding block 5 moves to influence the product quality during injection molding is avoided.
Injection mold's joint delay mechanism of loosing core's theory of operation do: after the mold is opened, the oil cylinder 2 is pulled backwards, the sliding seat 3 is pulled to retreat, the large sliding block 4 falls and retreats in the T-shaped sliding groove 33 on the first inclined surface 31 along the core pulling direction, the small sliding block 5 starts to be separated from the back-off of the finished product 8 under the action of the large sliding block 4 and the spring 7, the central insert 6 moves leftwards on the plane of the bottom surface of the stepped hole 32 to control the delayed core pulling, and the central insert 6 is still relative to the fixing plate 1 and the finished product 8 and slides relative to the large sliding block 4 within a certain distance from the retreat of the large sliding block 4 due to the action of the plane of the bottom surface of the stepped hole 32; when the small sliding blocks 5 are completely separated, the central insert 6 is translated out of the bottom surface of the step hole 32, the central insert 6 and the large sliding block 4 do not slide relatively any more, the central insert 6 and the large sliding block 4 are driven by the large sliding block 4 to move relatively along the T-shaped sliding groove 32, the central insert 6 and the large sliding block 4 retreat for core pulling together, the two small sliding blocks 5 are driven by the large sliding block 4 and the central insert 6 to move downwards together, and the core pulling action is completed until all moving parts are completely separated from the inverted buckle surface of the product.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principles of the present invention, and these modifications should also be regarded as the protection scope of the present invention.
Claims (9)
1. A combined delay core-pulling mechanism of an injection mold is characterized in that: the automatic oil cylinder is characterized by comprising a fixing plate, an oil cylinder, a sliding seat, a large sliding block, a small sliding block and a central insert, wherein the output end of a piston rod of the oil cylinder is connected with the sliding seat, the sliding seat is arranged above the fixing plate and is in sliding connection with the fixing plate, one side, far away from the oil cylinder, of the sliding seat is provided with a first inclined plane, a step hole is formed in the first inclined plane, the bottom surface of the step hole is parallel to the bottom surface of the sliding seat, the large sliding block matched with the first inclined plane is arranged on the first inclined plane, the large sliding block is sleeved with the central insert in a sliding connection with the large sliding block, the bottom surface of the central insert is movably connected with the bottom surface of the step hole, the upper end of the large sliding block is provided with the small sliding block symmetrically arranged in the center, the small sliding block is movably connected with the central insert and is in sliding connection with the large sliding block, and the inner side of the small sliding block is provided with a boss matched with a finished product reverse buckle.
2. The injection mold's combined delayed core-pulling mechanism of claim 1, wherein: the first inclined plane is provided with a T-shaped sliding groove, and the step hole is formed in the bottom surface of the T-shaped sliding groove.
3. The injection mold's combined delayed core-pulling mechanism of claim 2, wherein: the lower end of the large sliding block is provided with a second inclined surface, and the second inclined surface is matched with the T-shaped sliding groove and is in sliding connection with the T-shaped sliding groove.
4. The injection mold's combined delayed core-pulling mechanism of claim 3, wherein: the large sliding block is internally provided with a stepped hole, and the central insert is matched with the stepped hole and is in sliding connection with the stepped hole.
5. The injection mold's combined delayed core pulling mechanism of claim 4, wherein: the center insert is provided with a sliding table, the sliding table is matched with the stepped hole and is in sliding connection with the stepped hole, and the top surface of the sliding table is matched with the stepped surface to limit the sliding distance of the center insert.
6. The injection mold's combined delayed core pulling mechanism of claim 5, wherein: the upper end of the big sliding block is provided with a taper hole, and the small sliding block is arranged in the taper hole and matched with the taper hole.
7. The injection mold's combined delayed core pulling mechanism of claim 6, wherein: and a third inclined plane is arranged on the outer side of the small sliding block, and the third inclined plane is matched with the inclined planes on the two sides of the tapered hole and is in sliding connection with the tapered hole.
8. The injection mold's combined delayed core-pulling mechanism of claim 1, wherein: the lower end of the small sliding block is provided with a guide post matched with the central insert, and the two guide posts extend into the guide hole of the central insert and are oppositely arranged.
9. The injection mold's combined delayed core pulling mechanism of claim 8, wherein: the guide pillar is internally provided with a blind hole, the blind hole is internally provided with a spring, and two ends of the spring are respectively abutted to the bottom surfaces of the two blind holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120291368.3U CN214562702U (en) | 2021-02-02 | 2021-02-02 | Combined delay core-pulling mechanism of injection mold |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120291368.3U CN214562702U (en) | 2021-02-02 | 2021-02-02 | Combined delay core-pulling mechanism of injection mold |
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| Publication Number | Publication Date |
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| CN214562702U true CN214562702U (en) | 2021-11-02 |
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| CN202120291368.3U Active CN214562702U (en) | 2021-02-02 | 2021-02-02 | Combined delay core-pulling mechanism of injection mold |
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- 2021-02-02 CN CN202120291368.3U patent/CN214562702U/en active Active
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