CN109866397B - Combined sliding block transverse normal secondary core-pulling mechanism and injection mold - Google Patents
Combined sliding block transverse normal secondary core-pulling mechanism and injection mold Download PDFInfo
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- CN109866397B CN109866397B CN201910221361.1A CN201910221361A CN109866397B CN 109866397 B CN109866397 B CN 109866397B CN 201910221361 A CN201910221361 A CN 201910221361A CN 109866397 B CN109866397 B CN 109866397B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The application discloses a combined sliding block transverse normal secondary core pulling mechanism, which relates to the technical field of injection molds and comprises a first sliding block, a second sliding block, a combined sliding seat and a driving piece, wherein the first sliding block and the second sliding block are connected in a sliding way to form a linear sliding pair, a guide groove for transversely guiding the first sliding block is formed in the combined sliding seat, the rear end of the first sliding block penetrates through the guide groove, the rear end of the second sliding block is abutted to the front end of the combined sliding seat, a limiting piece is arranged on the combined sliding seat, the driving piece is connected with the first sliding block and drives the first sliding block to transversely pull core until the first sliding block is fixed by the limiting piece, the first sliding block drives the second sliding block to transversely pull core during transverse core pulling of the first sliding block, and the first sliding block and the second sliding block are assembled on the combined sliding seat through the limiting piece together. According to the application, the first sliding block drives the second sliding block to core in the normal direction during the transverse core pulling, so that the problem that the core pulling of a product is difficult because the core pulling mechanisms in the transverse direction and the normal direction cannot be arranged due to the limitation of the internal structure of the product is solved.
Description
Technical Field
The application relates to the technical field of injection molds, in particular to a combined sliding block transverse normal secondary core pulling mechanism and an injection mold.
Background
For injection molding products with special-shaped cavities, core pulling is usually required to be carried out in different directions, as in the injection molding products shown in fig. 1 and 2, the core pulling position of a transverse sliding block of the product is deeper, and a normal core pulling hole is formed in the inner side surface of the product. The existing injection mold is generally opened up and down, the products shown in fig. 1 and 2 have core pulling processes in two directions of transverse direction and normal direction, because of the internal structure limitation of the products, the inclined top core pulling or the sliding block core pulling can not be independently added, the product structure can not be changed, and in order to avoid the huge size and the complex structure of the mold, the core pulling devices are not allowed to be arranged in the two core pulling directions respectively.
Disclosure of Invention
The application aims to provide a combined sliding block transverse normal secondary core-pulling mechanism which can drive normal core-pulling when in transverse core-pulling, and solves the problem that core-pulling of a product is difficult because a core-pulling mechanism in two directions of transverse and normal cannot be arranged due to the limitation of the internal structure of the product.
In order to achieve the above purpose, the present application adopts the following technical scheme:
the utility model provides a mechanism of loosing core for horizontal normal direction of combination slider, includes first slider, second slider, combination slide and driving piece, and first slider and second slider sliding connection form the straight line sliding pair, and the inside guide way that carries out horizontal direction to first slider that is provided with of combination slide, and first slider rear end wears to be arranged in the guide way, the front end of second slider rear end butt combination slide, the combination slide on be provided with the locating part, driving piece connect first slider and drive first slider and transversely loose core until fixed by the locating part, drive second slider normal direction through straight line sliding pair when first slider is transversely loosing core, first slider and second slider pass through the locating part and assemble jointly on the combination slide.
Further, the locating part be the locating bead that sets up in the guide way, be provided with on the first slider with the recess of locating bead looks adaptation, through the cooperation of recess and locating bead, first slider and second slider co-assembly are on the combination slide.
Further, the rear end of the first sliding block is connected with the driving piece, the driving piece is an inclined guide pillar, an inclined guide pillar hole for the inclined guide pillar to pass through is formed in the rear end of the first sliding block, an inclined guide pillar groove is formed in the combined sliding seat, and the inclined guide pillar moves along the inclined guide pillar groove for a preset distance in the transverse core pulling direction.
Further, the core pulling mechanism also comprises a transverse large sliding block which is fixedly connected to the front of the combined sliding seat, the transverse large sliding block is provided with a slot with a transverse opening, the slot is communicated with a guide slot of the combined sliding seat, a linear sliding pair formed by the first sliding block and the second sliding block transversely penetrates through the slot, and the transverse large sliding block limits the upper part, the lower part, the left part, the right part and the front part of the linear sliding pair.
Further, the combined sliding seat is connected with the oil cylinder, the first sliding block drives the second sliding block to complete normal core pulling, the first sliding block, the second sliding block and the transverse large sliding block are assembled on the combined sliding seat together, and the combined sliding seat drives the first sliding block, the second sliding block and the transverse large sliding block to be completely separated from a product under the action of the oil cylinder.
Further, a sliding boss inclined to the normal direction and the transverse direction is arranged on one side of the front end of the first sliding block, a sliding groove for sliding the sliding boss of the first sliding block is formed on one side of the front end of the second sliding block, and the sliding boss is slidably kept in the sliding groove.
Further, the distance of the transverse core pulling of the first sliding block is larger than the distance of the normal core pulling of the second sliding block.
The application also provides an injection mold, which comprises at least one combined sliding block transverse normal secondary core-pulling mechanism.
Further, the rear end face of the first sliding block is an inclined plane, an inclined wedge block which pushes the inclined plane when the die is closed is arranged on the female die, the female die is fixedly connected with the inclined guide post, and the female die drives the inclined wedge block to leave the first sliding block and drives the inclined guide post to pull the first sliding block to transversely loose core when the die is opened.
The application has the following beneficial effects:
according to the application, by arranging the combined sliding block transverse normal secondary core-pulling mechanism, the first sliding block drives the second sliding block to core-pull normally during transverse core-pulling, so that the problem that the product needs to core-pull transversely and normally, but the core-pulling mechanism cannot be independently arranged in two core-pulling directions due to the limitation of an internal structure, so that core pulling is difficult is solved.
According to the application, when the die is opened, the inclined guide pillar core-pulling mechanism can be utilized to realize the normal core-pulling of the second slide block when the first slide block is used for transversely pulling the core, and after the second slide block is used for completing the normal core-pulling, the first slide block and the second slide block are assembled on the combined slide seat together through the limiting piece. The core of the product comprises a first sliding block, a second sliding block and a transverse large sliding block, the transverse large sliding block is fixedly connected with the combined sliding seat, each sliding block can be separated from the product simultaneously only by pulling the combined sliding seat, and the secondary core pulling process is simple and convenient.
Drawings
FIG. 1 is a block diagram of an injection molded product according to an embodiment of the present application;
FIG. 2 is another angular view of FIG. 1;
FIG. 3 is a schematic perspective view of a combined slider transverse normal secondary core pulling mechanism according to an embodiment of the present application, wherein an oblique guide post is omitted;
FIG. 4 is a schematic diagram of the mating of a first slider and a second slider according to an embodiment of the present application;
FIG. 5 is a block diagram of a first slider according to an embodiment of the present application;
FIG. 6 is a block diagram of a second slider according to an embodiment of the present application;
FIG. 7 is a block diagram of a combination slide of an embodiment of the application;
FIG. 8 is a block diagram of a lateral large slide of an embodiment of the application;
FIG. 9 is a top view of a combined slider transverse normal secondary core pulling mechanism according to an embodiment of the present application;
FIG. 10 is a sectional view of the injection mold of example 2 of the present application taken along line B-B in FIG. 9;
fig. 11 is a bottom view of a combined slide transverse normal secondary core-pulling mechanism according to an embodiment of the present application.
Detailed Description
In order that the above-recited objects, features and advantages of the present application will be more clearly understood, a more particular description of the application will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.
The terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application.
Embodiment 1, the embodiment of the application provides a combined sliding block transverse normal secondary core pulling mechanism which is used for pulling cores of injection products. Fig. 1 and 2 show a plastic product to which the combined slide block transverse direction normal direction secondary core pulling mechanism of the present embodiment is applied, and in fig. 1 and 2, the F1 direction indicates the transverse direction, and the F2 direction indicates the normal direction. The core-pulling position of the product slide block is deeper, and the inner side surface of the product is provided with a normal core-pulling hole, so that the normal inclined top core-pulling or slide block core-pulling cannot be independently added due to the limitation of the inner structure of the product, and the product structure cannot be changed.
Referring to fig. 3 and 4, the combined sliding block transverse normal secondary core pulling mechanism provided in this embodiment specifically includes a first sliding block 1, a second sliding block 2, a combined sliding seat 4 and a driving member, where the first sliding block 1 and the second sliding block 2 are slidably connected to form a linear sliding pair, a guiding slot 41 for guiding the first sliding block 1 transversely is provided inside the combined sliding seat 4, the rear end of the first sliding block 1 is inserted into the guiding slot 41, the rear end of the second sliding block 2 abuts against the front end of the combined sliding seat 4, a limiting member is provided on the combined sliding seat 4, the driving member is connected with the first sliding block 1 and drives the first sliding block 1 to perform transverse core pulling until being fixed by the limiting member, the first sliding block 1 and the second sliding block 2 are driven to perform normal core pulling through the linear sliding pair during the transverse core pulling of the first sliding block 1, and the first sliding block 1 and the second sliding block 2 are assembled together on the combined sliding seat 4 through the limiting member.
As shown in fig. 4 and 5, in this embodiment, the rear end of the first slider 1 is substantially rectangular, and the rear end thereof is connected to a driving member, the front end of the first slider 1 is used as a core, one side of the front end of the first slider 1 is provided with an inclined surface, and the inclined surface is provided with a sliding boss 11 inclined to the transverse direction and the normal direction. As shown in fig. 6 and 9, a sliding groove 21 for sliding the sliding boss 11 of the first sliding block 1 is formed on one side of the second sliding block 2, the sliding groove 21 is inclined with respect to the transverse direction and the normal direction, and the sliding boss 11 is slidably held in the sliding groove 21. Through the sliding fit of the sliding boss 11 and the sliding groove 21, the first sliding block 1 and the second sliding block 2 form a linear sliding pair, and the second sliding block 2 is pulled to perform normal movement through the sliding boss 11 when the first sliding block 1 performs transverse movement.
It should be noted that the sliding boss 11 of the present embodiment is used to slidably connect the first slider 1 and the second slider 2, and the first slider 1 can pull the second slider 2, and there is no strict limitation on the shape of the sliding boss 11. Preferably, the sliding boss 11 of the present embodiment is a sliding boss with a T-shaped cross section, and is integrally formed with the first slider 1, and the shape of the chute 21 is matched with the same. It will be appreciated that in other embodiments the sliding boss 11 may be provided on the second slider 2 and the chute 21 on the first slider 1.
As shown in fig. 3, 7, 8 and 9, the core pulling mechanism of the combined sliding block transverse normal secondary core pulling mechanism provided by the embodiment of the application further comprises a transverse large sliding block 5. The large transverse sliding block 5 is fixedly connected to the front of the combined sliding seat 4, the large transverse sliding block 5 is provided with a slot 51 with a transverse opening, the slot 51 is communicated with the guide groove 41 of the combined sliding seat 4, the linear sliding pair formed by the first sliding block 1 and the second sliding block 2 transversely penetrates through the slot 51, and the large transverse sliding block 5 limits the upper part, the lower part, the left part, the right part and the front part of the linear sliding pair. The first sliding block 1 can transversely retreat along the slot 51 under the action of the driving piece, the rear end of the second sliding block 2 is abutted to the front end of the combined sliding seat 4, and the second sliding block 2 can only move along the normal direction under the driving of the first sliding block 1.
The driving piece is used for driving the first sliding block 1 to transversely move, and the driving piece is various and can be of the types such as an electric push rod, a telescopic cylinder and the like. Preferably, the driving member in this embodiment is an inclined guide post 3, as shown in fig. 4 and 5, the rear end of the first slider 1 is provided with an inclined guide post hole 12 through which the inclined guide post 3 passes, as shown in fig. 7, the combined sliding seat 4 is provided with an inclined guide post slot 42, and the inclined guide post 3 moves along the inclined guide post slot 42 by a predetermined distance L1 in the transverse core pulling direction. In this embodiment, the distance of the transverse core pulling of the first slider 1 is greater than the distance of the normal core pulling of the second slider 2, specifically, 65.51mm of the transverse core pulling of the first slider 1 under the action of the oblique guide pillar 3, and 6.89mm of the normal core pulling of the second slider 2 under the action of the first slider 1.
In this embodiment, the combined sliding seat 4 is provided with a limiting member, the first sliding block 1 moves transversely along the guiding slot 41 until being fixed by the limiting member, and the second sliding block 2 completes the normal core pulling in the transverse moving process of the first sliding block 1. The locating part is the locating bead that sets up in the guide way 41, is provided with on the inside diapire of guide way 41 about two and can go on flexible locating bead from top to bottom, is provided with the recess with locating bead looks adaptation on the first slider 1. The positioning bead is normally in a compressed state, and when the first slider 1 is moved laterally to a position where the groove is located above the positioning bead, the positioning bead is extended to be inserted into the groove, thereby fixing the first slider 1. Through the cooperation of recess and location pearl, second slider 2 is fixed on combination slide 4 along with first slider 1, and combination slide 4 passes through an hydro-cylinder connecting block 8 and connects hydro-cylinder 6, and first slider drives both and assemble on the combination slide jointly after the second slider accomplishes normal loose core, and combination slide 4 drives first slider 1, second slider 2 and horizontal big slider 5 under the effect of hydro-cylinder 6 and breaks away from the product completely.
Embodiment 2 referring to fig. 10, an injection mold for producing the plastic product shown in fig. 1 and 2 is provided in an embodiment of the present application. The injection mold comprises a combined sliding block transverse normal secondary core pulling mechanism, a male mold, a female mold, an ejection mechanism and the like. The basic structure and principle of the combined sliding block transverse normal secondary core pulling mechanism and the generated technical effects are the same as those of the embodiment 1, and are not repeated here, wherein the female die is fixedly connected with the inclined guide post 3. The ejection mechanism comprises an ejector plate and an ejector pin, and the ejector pin is communicated with the injection molding cavity to be abutted against the injection molding product.
In this embodiment, as shown in fig. 4 and 5, the rear end surface of the first slider 1 is an inclined surface 13, as shown in fig. 10 and 11, a wedge 7 that pushes against the inclined surface 13 during mold closing is provided on the master mold, as shown in fig. 7, a relief hole 43 of the wedge 7 is provided on the combination slide 4, and during mold closing, the wedge 7 is inserted into the relief hole 43 to push against the first slider, so that the first slider, the second slider and the large transverse slider are assembled in place.
During die sinking, through setting up the injection molding machine system and under the effect of injection molding machine die sinking mechanism, the die joint is die sinking earlier, and the master model orientation is equipped with oblique guide pillar 3 and wedge 7, and during the die sinking, the master model drives wedge 7 and breaks away from combination slide 4 to drive oblique guide pillar 3 and remove, under the effect of oblique guide pillar 3, first slider 1 transversely takes out 65.51mm, through the cooperation of slip boss 11 and spout 21, second slider 2 normal direction takes out 6.89mm. Under the action of the positioning beads, the first sliding block 1 and the second sliding block 2 are assembled on the combined sliding seat, and the second sliding block 2 is separated from the normal back-off inside the product. Then, the oil cylinder 6 drives the combined sliding seat 4 to move through the oil cylinder connecting block 8, and the combined sliding seat 4 drives the first sliding block 1, the second sliding block 2 and the transverse large sliding block 5 to be completely separated from the product. Under the effect of an ejection mechanism of the injection mold, the ejector pin plate on the mold drives the ejector pin to eject the product, and under the effect of the ejector pin, the product automatically drops off from the mold, thereby achieving the purpose of automatic production.
The above description is illustrative of the embodiments using the present teachings, and is not intended to limit the scope of the present teachings to any particular modification or variation of the present teachings by those skilled in the art.
Claims (6)
1. A combined sliding block transverse normal secondary core-pulling mechanism is characterized in that: the combined sliding seat comprises a first sliding block, a second sliding block, a combined sliding seat and a driving piece, wherein the first sliding block and the second sliding block are in sliding connection to form a linear sliding pair, a guide groove for transversely guiding the first sliding block is formed in the combined sliding seat, the rear end of the first sliding block is arranged in the guide groove in a penetrating mode, the rear end of the second sliding block is abutted to the front end of the combined sliding seat, a limiting piece is arranged on the combined sliding seat, the driving piece is connected with the first sliding block and drives the first sliding block to transversely core-pull until the first sliding block is fixed by the limiting piece, the first sliding block drives the second sliding block to normally core-pull through the linear sliding pair during transverse core-pull, and the first sliding block and the second sliding block are jointly assembled on the combined sliding seat through the limiting piece;
the core pulling mechanism further comprises a transverse large sliding block which is fixedly connected to the front of the combined sliding seat, the transverse large sliding block is provided with a slot with a transverse opening, the slot is communicated with a guide groove of the combined sliding seat, a linear sliding pair formed by the first sliding block and the second sliding block transversely penetrates through the slot, and the transverse large sliding block limits the upper part, the lower part, the left part, the right part and the front part of the linear sliding pair;
the combined sliding seat is connected with the oil cylinder, the first sliding block drives the second sliding block to complete normal core pulling, and then the two sliding blocks are assembled on the combined sliding seat together, and the combined sliding seat drives the first sliding block, the second sliding block and the transverse large sliding block to completely separate from a product under the action of the oil cylinder;
one side of the front end of the first sliding block is provided with an inclined plane, the inclined plane is provided with a sliding boss inclined to the normal direction and the transverse direction, one side of the front end of the second sliding block is provided with a sliding groove for the sliding boss of the first sliding block to slide, the trend of the sliding groove is inclined with the transverse direction and the normal direction, the sliding boss can be slidably kept in the sliding groove, and the first sliding block and the second sliding block form a linear sliding pair through sliding fit of the sliding boss and the sliding groove;
the first sliding block can transversely retreat along the slot under the action of the driving piece, the rear end of the second sliding block is abutted to the front end of the combined sliding seat, and the second sliding block can only move along the normal direction under the driving of the first sliding block.
2. The combined slide block transverse normal secondary core pulling mechanism according to claim 1, wherein: the limiting piece is a positioning bead arranged in the guide groove, a groove matched with the positioning bead is formed in the first sliding block, and the first sliding block and the second sliding block are assembled on the combined sliding seat together through the matching of the groove and the positioning bead.
3. The combined slide block transverse normal secondary core pulling mechanism according to claim 1, wherein: the rear end of the first sliding block is connected with the driving part, the driving part is an inclined guide pillar, an inclined guide pillar hole for the inclined guide pillar to pass through is formed in the rear end of the first sliding block, an inclined guide pillar groove is formed in the combined sliding seat, and the inclined guide pillar moves along the inclined guide pillar groove for a preset distance in the transverse core pulling direction.
4. The combined slide block transverse normal secondary core pulling mechanism according to claim 1, wherein: the distance of the transverse core pulling of the first sliding block is larger than the distance of the normal core pulling of the second sliding block.
5. An injection mold, characterized in that: comprising at least one combined sliding block transverse normal secondary core-pulling mechanism as defined in any one of claims 1 to 4.
6. The injection mold of claim 5, wherein: the rear end face of the first sliding block is an inclined plane, an inclined wedge block which pushes the inclined plane when the die is assembled is arranged on the female die, the female die is fixedly connected with the inclined guide post, and the female die drives the inclined wedge block to leave the first sliding block and drives the inclined guide post to pull the first sliding block to transversely loose core when the die is opened.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910221361.1A CN109866397B (en) | 2019-03-22 | 2019-03-22 | Combined sliding block transverse normal secondary core-pulling mechanism and injection mold |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910221361.1A CN109866397B (en) | 2019-03-22 | 2019-03-22 | Combined sliding block transverse normal secondary core-pulling mechanism and injection mold |
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| CN109866397A CN109866397A (en) | 2019-06-11 |
| CN109866397B true CN109866397B (en) | 2023-09-08 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110561701A (en) * | 2019-09-09 | 2019-12-13 | 华域视觉科技(上海)有限公司 | cross core pulling structure and injection mold |
| CN111113818B (en) * | 2020-01-17 | 2023-04-28 | 超日(厦门)科技有限公司 | Sequential core-pulling and die-opening structure of anisotropic combined sliding block and core-pulling method of die |
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