CN217993401U - Mould demolding structure convenient to buckle spare drawing of patterns - Google Patents

Abstract

The utility model discloses a mould stripping structure convenient for demoulding of a buckle part, which is arranged on a movable mould, wherein each cavity on the movable mould is provided with a mould core, and one end part of each mould core is embedded on the movable mould; each mold core is provided with a clamping groove matched with the clamping protrusion on the clamping piece, and the bottom of each mold cavity and the bottom of each mold core are provided with more than one through hole matched with the ejector pin. The utility model is convenient for fixing the mold core at the proper position of the cavity by arranging the positioning groove at the side of the cavity of the movable mold, so as to form the concave structure on the fastener; the bottom of the mold core is also provided with the through hole, so that the mold core and the clamping part can be jacked up from the mold together by an ejector pin on the mold during demolding; through setting up the core into split type structure, can become the protruding structure of whole card in the die cavity, can not harm the card protrudingly, also can not form the parting line on the card is protruding to can shift the parting line to be used for dodging the protruding indent of card structural on the buckle spare, can not influence the outward appearance and the buckle function of buckle spare.

Description

Mould demolding structure convenient to buckle spare drawing of patterns

Technical Field

The utility model relates to a mould drawing of patterns technical field, in particular to mould demolding structure convenient to buckle spare drawing of patterns.

Background

One of the most important components of the demolding mechanism in mold design directly affects the appearance quality and dimensional accuracy of the plastic part, and the structural design of the demolding mechanism directly determines the demolding efficiency and cost of the mold. In the production, often can meet the shaping demand of small-size buckle class product, product overall dimension is little, detain a partial structure complicacy and the size is very little, for the convenience of shaping and drawing of patterns, the structure of mould lock is designed for preceding back mould mostly to the core in the die cavity, but this kind of structure forms appearance problems such as parting line very easily in product lock department, though can reduce parting line as far as possible through the method that improves the core precision in mould processing, on some products that precision requirement is very high, the parting line that exists on the buckle functional area very probably influences the quality of product.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the above-mentioned prior art, the utility model provides a mould demolding structure convenient to buckle spare drawing of patterns can be in the protruding structure of whole card on the shaping buckle spare in the die cavity, can not harm the card protruding, also can not form the parting line on the card is protruding to can shift the parting line to be used for dodging the protruding indent of card structural on the buckle spare, can not influence the outward appearance and the buckle function of buckle spare.

In order to solve the technical problem, the utility model discloses a technical scheme as follows:

a mould stripping structure convenient for demoulding of a buckle part is arranged on a movable mould, and a plurality of ejector pins used for pushing away the buckle part are arranged on the movable mould; more than one cavity and a plurality of runner grooves are formed on the end surface of the movable die, and each cavity is communicated with more than one runner groove; each cavity is provided with a core, and one end part of each core extends to the outer side of the cavity and is embedded on the movable die; each core extends to two opposite side walls in the cavity and is provided with a clamping groove matched with the clamping protrusion on the clamping piece; and more than one through hole is formed in the bottom of each cavity and each core on the movable die, and each through hole is matched with one thimble.

As a further elaboration of the above technical solution:

in the above technical solution, the end of the movable mold is provided with a positioning groove communicated with each cavity, and each positioning groove is adapted to one of the cores; each positioning groove is communicated with one through hole.

In the above technical scheme, each core extends to the end in the cavity and is provided with a first avoidance groove adapted to the fastener.

In the technical scheme, the end part of each core extending out of the cavity is provided with a fool-proof hole groove.

In the above technical solution, each of the cores is a metal core.

In the technical scheme, each core comprises two molding core plates and a positioning core plate, a side cutting groove matched with the clamping piece is formed in one side wall of each molding core plate, and the bottom of each side cutting groove is provided with one clamping groove; the positioning core plates are matched and clamped between the two molding core plates, and two side walls of the positioning core plates are matched and attached with the two molding core plates.

In the above technical scheme, each positioning groove is communicated with one flow channel groove, and a second avoiding groove matched with the flow channel groove is further arranged on one molding core plate of each mold core.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model is convenient for fixing the mold core at the proper position of the cavity by arranging the positioning groove at the side of the cavity of the movable mold, so as to form the concave structure on the fastener; the bottom of the mold core is also provided with the through hole, so that the mold core and the clamping part can be jacked up from the mold together by an ejector pin on the mold during demolding; through setting up the core into split type structure, can become the protruding structure of whole card in the die cavity, can not harm the card protrudingly, also can not form the parting line on the card is protruding to can shift the parting line to be used for dodging the protruding indent of card structural on the buckle spare, can not influence the outward appearance and the buckle function of buckle spare.

Drawings

FIG. 1 is a schematic structural view of the present embodiment (with the fastener and core hidden from view within a cavity);

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

FIG. 3 is a schematic structural view of the core and the fastener in the present embodiment;

fig. 4 is an exploded structural view of the core in the present embodiment.

In the figure: 10. moving the mold; 11. a cavity; 12. a flow channel groove; 13. a through hole; 14. positioning a groove; 20. a thimble; 30. a core; 31. a card slot; 32. a first avoidance slot; 33. a fool-proof hole groove; 40. a fastener; 1. molding a core plate; 2. positioning a core plate; 101. a lateral cutting groove; 102. and a second avoidance groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiments described by referring to the drawings are exemplary and intended to be used for explaining the present application and are not to be construed as limiting the present application. In the description of the present application, 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," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting. 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 application, "a plurality" means two or more unless specifically limited otherwise. In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; 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 application can be understood by those of ordinary skill in the art as appropriate. In this application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. 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. The first feature being "under," "beneath," and "under" the second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

As shown in fig. 1-4, a mold stripping structure for facilitating the demolding of a fastener is provided on a movable mold 10, the movable mold 10 is provided with a plurality of ejector pins 20 for pushing away a fastener 40; more than one cavity 11 and a plurality of runner grooves 12 are formed on the end surface of the movable mold 10, and each cavity 11 is communicated with more than one runner groove 12; each cavity 11 is provided with a core 30, and one end part of each core 30 extends to the outer side of one cavity 11 and is embedded on the movable die 10; the two opposite side walls of each mold core 30 extending into the cavity 11 are provided with clamping grooves 31 matched with the clamping protrusions on the clamping piece 40; the movable mold 10 is provided with more than one through hole 13 at the bottom of each cavity 11 and each core 30, and each through hole 13 is matched with an ejector pin 20.

Furthermore, the end part of the movable mold 10 is provided with a positioning groove 14 communicated with each cavity 11, and each positioning groove 14 is matched with a mold core; each positioning groove 14 is communicated with a through hole 13.

Further, the end of each core 30 extending into the cavity 11 is provided with a first avoiding groove 32 adapted to the fastener 40.

Further, the end of each core 30 extending out of the cavity 11 is provided with a fool-proof hole groove 33.

Further, each of the cores 30 is a metal core.

Further, each core 30 comprises two molding core plates 1 and a positioning core plate 2, a side cut groove 101 matched with the fastener 40 is formed on one side wall of each molding core plate 1, and a clamping groove 31 is formed at the bottom of each side cut groove 101; the positioning core plate 2 is clamped between the two molding core plates 1 in a matching way, and two side walls of the positioning core plate are matched and attached with the two molding core plates 1 together.

Further, each positioning groove 14 is communicated with a flow channel groove 12, and a second avoiding groove 102 adapted to the flow channel groove 12 is further provided on a molding core plate 1 of each core 30.

It can be understood that the core 30 extending into the cavity 11, and the first avoiding groove 32 and the clamping groove 31 on the sidewall of the core 30, form a concave structure matching with the clamping member 40 in the cavity 11 during mold closing, and form a positioning structure and a clamping convex structure on the concave structure; the split type core 30 is convenient for the whole convex block to smoothly separate, and the parting line can be transferred to the split structure of the core 30, namely the intersecting concave structure of the core plate 1, the positioning core plate 2 and the fastener 40, so that the positioning function of the convex block is not influenced, and the appearance of the fastener 40 is not influenced.

The working process of the utility model is as follows:

before die assembly, the two molding core plates 1 and a positioning core plate 2 are attached together to form a core 30, two clamping grooves 31 are ensured to face outwards and are inserted into a positioning groove 14 at the die assembly end part of the movable die 10, a foolproof hole groove 33 is ensured to be far away from the die cavity 11, and a first avoiding groove 32 is close to the bottom of the die cavity 11; after each mold core 30 is completely inserted into a positioning groove 14 and fixed, the mold is started to carry out mold closing action, and the glue solution fills the cavity 11 to form a buckle part 40; during demolding, the ejector pin 20 penetrates through the through hole 13 to eject the fastener 40 and the core 30 from the movable mold 10, the fastener 40 and the core 30 are taken out together manually or by a manipulator, and then the core 30 is taken out of each fastener 40. When the core 30 is taken out, the middle positioning core plate 2 is taken out, and then the two molding core plates 1 are leaned towards the middle, so that the two clamping grooves 31 are separated from the clamping protrusions on the clamping piece 40, and the core can be safely withdrawn.

The utility model is convenient for fixing the mold core at the proper position of the cavity by arranging the positioning groove at the side of the cavity of the movable mold, so as to form the concave structure on the fastener; the bottom of the mold core is also provided with the through hole, so that the mold core and the clamping part can be jacked up from the mold together by an ejector pin on the mold during demolding; through setting up the core into split type structure, can become the protruding structure of whole card in the die cavity, can not harm the card protrudingly, also can not form the parting line on the card is protruding to can shift the parting line to be used for dodging the protruding indent of card structural on the buckle spare, can not influence the outward appearance and the buckle function of buckle spare.

The above is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are all within the scope of the technical solution of the present invention.

Claims (7)

1. A mould stripping structure convenient for demoulding of a buckle part is arranged on a movable mould, and a plurality of ejector pins used for pushing away the buckle part are arranged on the movable mould; the end surface of the movable die is provided with more than one cavity and a plurality of runner grooves, and each cavity is communicated with more than one runner groove; each die cavity is provided with a die core, and one end part of each die core extends to the outer side of one die cavity and is embedded in the movable die; clamping grooves matched with the clamping protrusions on the clamping parts are formed in the two opposite side walls of each mold core extending into the mold cavity; the movable die is provided with more than one through hole at the bottom of each cavity and each core, and each through hole is matched with one thimble.

2. A mold stripping structure for facilitating the demolding of a fastener as claimed in claim 1, wherein the end of said movable mold is provided with a positioning groove communicating with each of said cavities, each of said positioning grooves being adapted to a said core; each positioning groove is communicated with one through hole.

3. The structure of claim 2, wherein each core has a first escape groove at an end extending into the cavity for engaging the fastener.

4. A mold release structure for facilitating the release of a clip according to claim 2, wherein each core has a fool-proof slot at an end extending outside the cavity.

5. A mold release structure for facilitating the release of a clasp in accordance with claim 2, wherein each of the cores is a metallic core.

6. A mold release structure for facilitating the release of a clip according to any one of claims 2 to 5, wherein each of said cores comprises two core plates and a positioning core plate, a side wall of each of said core plates is formed with a side cut groove adapted to the clip, and a bottom of each of said side cut grooves is provided with a said engaging groove; the positioning core plates are matched and clamped between the two molding core plates, and two side walls of the positioning core plates are matched and attached with the two molding core plates.

7. A structure as claimed in claim 6, wherein each of said positioning grooves is connected to a corresponding one of said flow channel grooves, and a second avoiding groove adapted to the flow channel groove is formed in a corresponding one of said core plates of each of said cores.

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