CN218314857U

CN218314857U - Double-color mold slide core-pulling mechanism

Info

Publication number: CN218314857U
Application number: CN202222615452.3U
Authority: CN
Inventors: 周志鹏; 陈茂志; 邱活; 吴锋
Original assignee: Dongguan 3t Mold Co ltd
Current assignee: Dongguan 3t Mold Co ltd
Priority date: 2022-10-02
Filing date: 2022-10-02
Publication date: 2023-01-17
Anticipated expiration: 2032-10-02

Abstract

The utility model relates to a double-colored mould slide mechanism of loosing core, it is through setting up the first angle pin that does not dial power at first color front mould and be provided with the second angle pin of dialling power at the second color front mould, first angle pin makes first color front mould keep the slide not loosing core after the die sinking then get into the second color front mould and carry out the compound die, stir the slide through the second angle pin in the second color front mould die sinking and loose core then the cooperation drawing of patterns, above-mentioned function is realized to first angle pin and second angle pin under the cooperation of stirring the subassembly. Through the structure, the double-color die slide core pulling structure is simplified, the failure rate of the die is reduced, the die is more easily disassembled, assembled and maintained, and the die machining and injection molding cost is reduced from the die structure.

Description

Double-color mold slide core-pulling mechanism

Technical Field

The utility model relates to a double-colored mould technical field especially relates to a double-colored mould slide mechanism of loosing core.

Background

When a product has a core-pulling structure, a die of a double-color die on the market generally is used for manufacturing an inclined top or an oil cylinder slide so as to ensure that a hard glue product is produced without die opening action and core pulling is synchronous. Therefore, the technical problems to be solved by the prior art are as follows: how to improve the slide structure, under the prerequisite of feasible action, save the cost, reduce the dismouting degree of difficulty and simplified operation, reduce the mould fault rate that brings because of complicated slide structure.

Disclosure of Invention

The to-be-solved technical problem of the utility model is not enough to above-mentioned prior art, provide a double-colored mould slide mechanism of loosing core, simplified slide structure, reduced the fault rate of mould, dismouting mould and maintenance operation are simpler, have reduced mould processing and the cost of moulding plastics from mould structure itself.

The embodiment of the utility model provides a double-colored mould slide mechanism of loosing core, it is including setting up in the first angle pin of first color front mould, set up in the second angle pin of second color front mould and set up in the back mould in the position of walking stir the subassembly, first angle pin is used for avoiding stirring the subassembly and keeping the position of walking to keep inserting state in the back mould when first color front mould and back mould die sinking, the second angle pin is used for stirring when second color front mould and back mould die sinking and stirs the subassembly and order about the position of walking and loose core in the back mould.

In some embodiments, the slide has a longitudinal through slot for receiving the first bending pin or the second bending pin.

In some embodiments, the toggle assembly comprises an elastic pin which is telescopically assembled on the side wall of the through groove by an elastic piece and is in an extending state in a normal state, and a passing clearance formed in the through groove when the elastic pin is in the extending state is larger than the insertion thickness of the first bent pin in the slide position.

In some embodiments, the elastic pins comprise a first elastic pin and a second elastic pin, the first elastic pin and the second elastic pin are respectively assembled on two side walls of the through groove and are oppositely arranged, a passing clearance is formed between the first elastic pin and the second elastic pin in the extending state, and the passing clearance is larger than the insertion thickness of the first bent pin in the slide.

In some embodiments, the second bending pin comprises a body and a convex edge thicker than the body is arranged on the side surface of the body, the convex edge is provided with a guide inclined surface, and the guide inclined surface is used for driving the elastic needle to compress to enable the second bending pin to penetrate through the toggle assembly when the second bending pin is in a descending process and the slide is in an insertion state; the convex edge is used for driving the slide core-pulling by pulling the elastic needle when the second bent pin moves upwards to open the die.

Compared with the prior art, the embodiment of the utility model provides a double-colored mould slide mechanism of loosing core, it is through not dialling the first angle pin of power and being provided with the second angle pin of dialling power at the second color front mould at first color front mould setting, first angle pin makes first color front mould keep the slide not loosing core after the die sinking then get into the second color front mould and carry out the compound die, stir the slide through the second angle pin and loose core then the cooperation drawing of patterns in the die sinking of second color front mould, above-mentioned function is realized to first angle pin and second angle pin under the cooperation of stirring the subassembly. Through the structure, the double-color die slide core pulling structure is simplified, the failure rate of the die is reduced, the die is more easily disassembled, assembled and maintained, and the die machining and injection molding cost is reduced from the die structure.

The details of one or more embodiments of the invention are set forth in the accompanying drawings and the description below to provide a more concise and understandable description of other features, objects, and advantages of the invention.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is a structural diagram of a first color front mold and rear mold combination according to an embodiment of the present invention.

Fig. 2 is a structural diagram of a second color front mold and rear mold combination according to an embodiment of the present invention.

Fig. 3 is a structural diagram of a first bending pin according to an embodiment of the present invention.

Fig. 4 is a structural diagram of the first bending pin and the slide at the time of mold closing according to the embodiment of the present invention.

Fig. 5 is a structural view of a second bending pin according to an embodiment of the present invention.

Fig. 6 is a structural view of the second bending pin and the slide at the time of mold closing according to the embodiment of the present invention.

In the figure, 1, a first color front mold; 2. a second color front mold; 3. a rear mold; 4. a first bent pin; 5. a row bit; 6. a through groove; 7. a first pogo pin; 8. a second pogo pin; 9. a second bending pin; 10. a body; 11. a convex edge; 12. a guide slope; 13. a shovel base.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be described and illustrated with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Based on the embodiments provided by the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention. Moreover, it should be further appreciated that, although such a development effort might be complex and tedious, it would be appreciated by those skilled in the art that variations in design, fabrication, or manufacture based on the teachings herein may be made without departing from the general principles of the present disclosure, and such variations are not to be considered as a departure from the spirit and scope of the present disclosure.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one of ordinary skill in the art that the described embodiments of the present invention can be combined with other embodiments without conflict.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as is commonly understood by one of ordinary skill in the art to which this invention belongs. The use of the terms "a" and "an" and "the" and similar referents in the context of describing the invention are not to be construed as limiting the number, but may be construed to cover both the singular and the plural. The present invention relates to the terms "comprises," "comprising," "includes," "including," "has," "having" and any variations thereof, which are intended to cover non-exclusive inclusions; for example, a process, method, system, article, or apparatus that comprises a list of steps or modules (elements) is not limited to the listed steps or elements, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. The terms "connected," "coupled," and the like, as used herein, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The utility model relates to a "a plurality of" means more than or equal to two. "and/or" describes an association relationship of associated objects, meaning that three relationships may exist, for example, "A and/or B" may mean: a exists alone, A and B exist simultaneously, and B exists alone. The terms "first," "second," "third," and the like in the description of the invention are used merely to distinguish between similar objects and not necessarily to represent a particular ordering for the objects.

As shown in fig. 1-2, the embodiment of the present invention provides a two-color mold structure, which comprises a first color front mold 1 as a hard product injection mold, a second color front mold 2 as a soft product injection mold, and two rear molds 3 assembled on a turntable (not shown) and operated in turn. The turntable rotates the rear mold 3 which is positioned on the first color front mold 1 and used for completing the injection molding of the hard product to the second color front mold 2 to continuously complete the injection molding of the soft product. The operation principle of the dual color module belongs to the prior art, and is not described herein again.

As shown in fig. 1, 3 and 4, for the combination of the first color front mold 1 and the rear mold 3 of one of the two-color mold core pulling mechanisms of the embodiment of the present invention, it includes an upper mold plate, a runner plate, a front mold, a shovel base, a slide 5, a first bending pin 4, a rear mold 3, an upper needle plate, a lower needle plate and a lower mold plate. The upper mold plate, the runner plate, the front mold, the shovel base, the rear mold 3, the upper needle plate, the lower needle plate and the lower mold plate belong to common mold structures in the prior art, and the composition and operation principle of the upper mold plate, the runner plate, the front mold, the shovel base, the rear mold, the upper needle plate, the lower needle plate and the lower mold plate are not described in detail herein. The key point is that the structure of the row 5 and the first bending pin 4 is provided, the first bending pin 4 is fixedly assembled on the inner side of the shovel base, the shovel base can push the row 5 to be matched with mold closing for insertion during mold closing, the row 5 of the embodiment has an operable structure for core pulling and insertion in the rear mold 3, in order to avoid the risk of damaging the back-off caused by pulling the row 5 when the first color front mold 1 opens the mold to drive the first bending pin 4 to move upwards and driving the row 5 to re-insert during mold closing of the second color front mold 2 after injection molding of a hard product, the first bending pin 4 structure which has no pulling force on the row 5 when the first color front mold 1 opens the mold is adopted in the embodiment. The structure of the slide 5 is provided with a longitudinal through groove 6, the through groove 6 is used for accommodating the first bent pin 4 to insert and withdraw, and two side walls of the through groove 6 of the slide 5 are respectively provided with a shifting component consisting of an elastic needle and a spring, the shifting component mainly acts when the second color front mold 2 opens the mold, and when the first color front mold 1 closes and opens the mold, because the thickness of the first bent pin 4 is smaller, the first bent pin 4 does not act and link with the shifting component in the process of inserting the through groove 6 and withdrawing the through groove 6. Specifically, the elastic needle is divided into a first elastic needle 7 and a second elastic needle 8, the first elastic needle 7 and the second elastic needle 8 are respectively assembled on two side walls of the through groove 6 and are oppositely arranged, and a passing gap between the first elastic needle 7 and the second elastic needle 8 in an extending state (a normal state only under elastic acting force) is larger than the thickness of the first bent pin 4, so that the first bent pin 4 is not in action linkage with the toggle assembly in the process of inserting into the through groove 6 and withdrawing from the through groove 6, that is, the first bent pin 4 has no toggle force to the slide 5 no matter the first color front mold 1 is opened or closed, and therefore the slide 5 can still keep an inserting state after the first color front mold 1 is opened.

As shown in fig. 2, 5, and 6, for the combination of the second color front mold 2 and the rear mold 3 of one of the two-color mold row 5 core pulling mechanisms of the embodiment of the present invention, it includes an upper mold plate, a runner plate, a front mold, a shovel base, a row 5, a second bending pin 9, a rear mold 3, an upper needle plate, a lower needle plate, and a lower mold plate. The upper mold plate, the runner plate, the front mold, the shovel base, the rear mold 3, the upper needle plate, the lower needle plate and the lower mold plate belong to common mold structures in the prior art, and the composition and operation principle of the upper mold plate, the runner plate, the front mold, the shovel base, the rear mold, the upper needle plate, the lower needle plate and the lower mold plate are not described in detail herein. The second bent pin 9 is assembled and fixed on the inner side of the shovel base, and the shovel base can push the slide 5 to be matched with the matched die to insert during die assembly. In order to realize double-color injection molding of soft products after injection molding of hard products, the runner 5 is still kept in an inserted state after the first color front mold 1 is opened, the soft products can be directly injected into the second color front mold 2, the second bent pin 9 is functionally different from the second bent pin 9, so that the second bent pin 9 has different structures, the second bent pin 9 is used as a component with pulling force for the runner 5, the structure of the second bent pin 9 is composed of a body 10 like a first bent pin 4 structure and convex edges 11 which are thicker than the body 10 and are respectively arranged on two side surfaces of the body 10, guide inclined surfaces 12 are respectively arranged on two outer sides of the convex edges 11, when the second color front mold 2 is closed downwards, the second bent pin 9 is driven to downwards move, the guide inclined surfaces 12 of the second bent pin 9 are firstly contacted with the first elastic needle 7 and the second elastic needle 8 in the downwards moving process, and due to the inclined action of the guide inclined surfaces 12, so that the force direction is dispersed to drive the first elastic needle 7 and the second elastic needle 8 to compress the respective springs and enable the convex edge 11 to gradually pass through between the first elastic needle 7 and the second elastic needle 8 until the convex edge 11 completely passes through between the first elastic needle 7 and the second elastic needle 8, after the second color front mold 2 descends to the proper position and the mold is closed, the second bend pin 9 also stops descending and the second bend pin 9 moves from the outside position before the mold is closed to the inside position, because of the unidirectionality of the convex edge 11 and the guide inclined plane 12, when the second color front mold 2 is opened, the first elastic needle 7 and the second elastic needle 8 do not have the guide inclined plane 12 when contacting with the second bend pin 9, so that the first elastic needle 7 and the second elastic needle 8 cannot compress the springs, and then the first elastic needle 7 and the second elastic needle 8 are pulled to move outwards to drive the row 5 as the second bend pin 9 follows the ascending of the second color front mold 2, then the product is ejected out and demoulded by matching with the relevant thimble.

It should be understood by those skilled in the art that various features of the above-described embodiments can be combined in any combination, and for the sake of brevity, all possible combinations of features in the above-described embodiments are not described in detail, but rather, all combinations of features which are not inconsistent with each other should be construed as being within the scope of the present disclosure.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The double-color mold line position core pulling mechanism is characterized by comprising a first bent pin (4) arranged on a first color front mold (1), a second bent pin (9) arranged on a second color front mold (2) and a shifting component arranged on a line position (5) in a rear mold (3), wherein the first bent pin (4) is used for avoiding the shifting component when the first color front mold (1) and the rear mold (3) are opened, so that the line position (5) is kept in an inserted state in the rear mold (3), and the second bent pin (9) is used for shifting the shifting component when the second color front mold (2) and the rear mold (3) are opened, so that the line position (5) is driven to loose core in the rear mold (3).

2. A bi-colour mould slide core-pulling mechanism according to claim 1, wherein said slide (5) has a longitudinal through slot (6), said through slot (6) being adapted to receive said first bent pin (4) or said second bent pin (9).

3. A bicolor die slide core-pulling mechanism according to claim 2, characterized in that said striking assembly comprises a pogo pin telescopically assembled by elastic means to the side wall of said through slot (6) and normally in an extended state, the passage clearance formed in said through slot (6) when said pogo pin is in the extended state being greater than the insertion thickness of said first bent pin (4) in said slide (5).

4. A bicolor mold slide core-pulling mechanism according to claim 3, characterized in that said bullet comprises a first bullet (7) and a second bullet (8), said first bullet (7) and said second bullet (8) are respectively mounted on two side walls of said through slot (6) and are oppositely arranged, said first bullet (7) and said second bullet (8) have a passing clearance in the extended state, said passing clearance is larger than the insertion thickness of said first bending pin (4) in said slide (5).

5. A bicolor mould slide core-pulling mechanism according to claim 3, characterized in that said second bend pin (9) comprises a body (10) and a flange (11) thicker than said body (10) is provided on the side of said body (10), said flange (11) having a guiding bevel (12), said guiding bevel (12) being adapted to drive the compression of said bullet pin to achieve the passage of said second bend pin (9) through said toggle assembly when said slide (5) is in the inserted state while said second bend pin (9) is in the descending process; the convex edge (11) is used for driving the slide (5) to loose core by pulling the elastic needle when the second bent pin (9) moves upwards to open the mold.