CN217395577U

CN217395577U - But quick drawing of patterns injection mold's two-way location structure

Info

Publication number: CN217395577U
Application number: CN202221355065.4U
Authority: CN
Inventors: 仇军成
Original assignee: Taicang Qiujing Plastic Mould Co ltd
Current assignee: Taicang Qiujing Plastic Mould Co ltd
Priority date: 2022-06-01
Filing date: 2022-06-01
Publication date: 2022-09-09
Anticipated expiration: 2032-06-01

Abstract

The utility model provides a but quick drawing of patterns injection mold's two-way location structure, includes lower mould backing plate, secondary thimble board, lower thimble board, goes up the thimble board, lower bolster, lower mould benevolence, a plurality of thimble, the ejecting locating component that a plurality of secondary thimble and two symmetries set up, and a plurality of thimbles set up on last thimble board, and a plurality of secondary thimbles set up on the secondary thimble board, and the upper end of a plurality of thimbles and a plurality of secondary thimbles all runs through in lower bolster and the lower mould benevolence extends to the shaping cavity. The utility model discloses a but quick drawing of patterns injection mold's two-way location structure, the back of product injection moulding has been solved, the big problem of the deformation of the ejecting product deformation of single during ejecting drawing of patterns, deformation when having controlled the back product of moulding plastics ejecting, the injection moulding yields of product has been improved effectively, and when the secondary is ejecting, the location of carrying out the secondary derivation that can be stable at the guide assembly of the both sides setting of secondary liftout plate, the degree of accuracy of thimble motion has been improved, and then the ejecting stability of drawing of patterns is improved.

Description

But quick drawing of patterns injection mold's two-way location structure

Technical Field

The utility model belongs to the technical field of advance production is made and is automatic, specifically, relate to a but quick drawing of patterns injection mold's two-way location structure.

Background

The injection mold is an important process device for producing various industrial products, and is widely applied to various industries along with the rapid development of the plastic industry and the popularization and application of plastic products in the industrial departments of aviation, aerospace, electronics, machinery, ships, automobiles and the like. Injection molding is a processing method used in mass production of parts with complex shapes, and comprises the steps of mold closing, glue injection, pressure maintaining, cooling, demolding and product taking out, specifically, a material melted by heating is injected into a mold cavity, and after cooling and solidification, the mold is opened to take out a formed product.

When the existing mold is used for injection molding production, a movable mold plate and a fixed mold plate of the mold are required to be matched together, molded raw materials are injected into a cavity, after the injection molding is finished, the movable mold plate and the fixed mold plate are separated, an ejector pin is required to eject out an obtained plastic product, and due to the fact that the ejector pin is ejected outwards, the injection product is adhered to the movable mold plate when the injection product is ejected, the demolding is difficult, and the injection product is deformed due to uneven stress of the injection product.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at providing a but quick drawing of patterns injection mold's two-way location structure, the part plastic products structure of having solved among the prior art is complicated and the adhesion is stronger, and when the thimble set up unreasonable and carry out the liftout, friction, adhesion between product and the die cavity lateral wall make the product be difficult to separate, need spend a large amount of time, cause the problem that the injection moulding product yield is low.

The technical scheme is as follows: the utility model provides a bidirectional positioning structure of an injection mold capable of quickly demoulding, which comprises a lower mold backing plate, a secondary thimble plate, a lower thimble plate, an upper thimble plate, a lower mold core, a plurality of primary thimbles, a plurality of secondary thimbles and two symmetrically arranged ejection positioning components, the lower die base plate, the secondary ejector pin plate, the lower ejector pin plate, the upper ejector pin plate and the lower die plate are sequentially arranged from bottom to top, the lower die core is arranged on the lower die plate, the primary thimbles are arranged on the upper thimble plate, the secondary thimbles are arranged on the secondary thimble plate, the two symmetrically arranged ejection positioning components are arranged between the lower die base plate and the secondary ejector plate, and the two symmetrically arranged ejection positioning components are respectively positioned at two sides of the lower die base plate, and the upper end parts of the plurality of primary thimbles and the plurality of secondary thimbles penetrate through the lower die plate and the lower die core and extend into the forming cavity. The utility model discloses a but quick drawing of patterns injection mold's two-way location structure has solved product injection moulding back, the ejecting product of single warp the big of deformation when ejecting the drawing of patterns, the easy condemned problem of product, the deformation when having controlled the back product of moulding plastics ejecting has improved the injection moulding yields of product effectively, and when the secondary is ejecting, the location of carrying out the secondary derivation that can be stable at the direction subassembly of the both sides setting of secondary ejection plate, the degree of accuracy of thimble motion has been improved, and then improve the ejecting stability of drawing of patterns.

Further, foretell but two-way location structure of fast demoulding injection mold, be equipped with the footing that two symmetries set up between lower bolster and the lower bolster, be equipped with the clearance between the footing that two symmetries set up, secondary thimble board, lower thimble board and last thimble board all are located the clearance to secondary thimble board, lower thimble board and last thimble board stack are in the same place. The two symmetrically arranged mold feet enable a certain distance to be reserved between the lower mold base plate and the lower mold plate, and a moving space is provided for movement of the ejector plate.

Furthermore, foretell but two-way location structure of rapid demoulding injection mold, be equipped with a plurality of gaskets on the lower backing plate, a plurality of gaskets set up between lower backing plate and secondary thimble board. A plurality of gaskets arranged enable a gap to be formed between the lower die base plate and the secondary ejector plate, and the lower die base plate and the secondary ejector plate are prevented from being stuck together.

Further, foretell but two-way location structure of fast demoulding injection mold, the secondary thimble includes secondary thimble body and thimble uide bushing, the lower tip of secondary thimble body sets up on the secondary thimble board, the thimble uide bushing sets up on the thimble board, secondary thimble body. The ejector pin guide sleeve can move along with the upper ejector pin plate and the lower ejector pin plate when the ejector pin guide sleeve is ejected for the first time, the ejector pin guide sleeve is matched with a primary ejector pin to finish ejection for the first time, and the secondary ejector pin body can stably perform secondary ejection through the guide of the ejector pin guide sleeve when the secondary ejector pin plate moves.

Furthermore, foretell but quick drawing of patterns injection mold's two-way location structure, ejecting locating component includes reference column, spring and location guide block, the lower tip of reference column sets up on lower backing plate, the spring sets up in secondary thimble board, the one end and the spring coupling of location guide block to the secondary thimble board is extended to the other end of location guide block, the tip that the location guide block extends the secondary thimble board contacts with the lateral wall of reference column. The positioning guide blocks on the two sides of the secondary ejector pin plate are respectively abutted against the side walls of the positioning columns through the thrust of the springs, so that the secondary ejector pin plate keeps stable movement of the secondary ejector pin plate under the tension action of the two sides.

Furthermore, foretell but two-way location structure of fast demoulding injection mold, the lower tip of reference column is equipped with the connection convex part, the upper end of reference column is equipped with spacing convex part, it is "L" type setting with the reference column to connect the convex part and pass through screw and lower mould backing plate and connect, the horizontal position of spacing convex part is higher than last thimble board. Avoidance grooves are formed in the secondary ejector retainer plate, the lower ejector retainer plate and the upper ejector retainer plate, contact parts with the limiting convex parts are avoided, and interference is avoided.

Furthermore, according to the bidirectional positioning structure of the injection mold capable of realizing rapid demolding, the end part, away from the positioning column, of the positioning guide block is provided with the first groove, and one end of the spring is arranged in the first groove. The first groove is arranged to provide a spring mounting position.

Furthermore, according to the bidirectional positioning structure of the injection mold capable of realizing rapid demolding, the upper ejector plate is provided with the plurality of limiting columns. The limit columns limit the ejection moving distance, and the phenomenon that the mold part moves beyond the stroke to cause collision is avoided.

Above-mentioned technical scheme can find out, the utility model discloses following beneficial effect has: the utility model discloses a two-way location structure of rapid demoulding injection mold, during the die sinking, under the effect of injection molding machine ejection mechanism, at first promote down thimble board and last thimble board and remove simultaneously and ejecting, after the stroke of once ejecting is arrived, down thimble board and last thimble board stop ejecting, and the secondary thimble board continues ejecting, drives the secondary thimble and ejecting whole injection molding, reaches the drawing of patterns purpose; through the guide assembly, the secondary ejection positioning guide is realized, the stability of ejection and demolding is improved, and the product quality and the production efficiency are improved.

Drawings

FIG. 1 is a first schematic structural view of a bidirectional positioning structure of the injection mold capable of rapid demolding according to the present invention;

FIG. 2 is a second schematic structural view of a two-way positioning structure of the injection mold capable of rapid demolding according to the present invention;

fig. 3 is a third schematic structural view of the bidirectional positioning structure of the injection mold capable of rapid demolding according to the present invention;

fig. 4 is a partially enlarged view of a portion a in fig. 1 according to the present invention.

In the figure: the ejector pin structure comprises a lower die base plate 1, a secondary ejector pin plate 2, a lower ejector pin plate 3, an upper ejector pin plate 4, a limiting column 41, a lower die plate 5, a lower die core 6, a primary ejector pin 7, a secondary ejector pin 8, a secondary ejector pin body 81, an ejector pin guide sleeve 82, an ejection positioning component 9, a positioning column 91, a spring 92, a positioning guide block 93, a connecting convex part 94, a limiting convex part 95, a first groove 96, a die pin 10 and a gasket 11.

Detailed Description

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 to implicitly indicate 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. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

Examples

The bidirectional positioning structure of the injection mold capable of realizing rapid demolding as shown in fig. 1-3 comprises a lower mold backing plate 1, a secondary ejector plate 2, a lower ejector plate 3, an upper ejector plate 4, a lower mold plate 5, a lower mold core 6, a plurality of primary ejectors 7, a plurality of secondary ejectors 8 and two symmetrically arranged ejection positioning components 9, wherein the lower mold backing plate 1, the secondary ejector plate 2, the lower ejector plate 3, the upper ejector plate 4 and the lower mold plate 5 are sequentially arranged from bottom to top, the lower mold core 6 is arranged on the lower mold plate 5, the plurality of primary ejectors 7 are arranged on the upper ejector plate 4, the plurality of secondary ejectors 8 are arranged on the secondary ejector plate 2, the two symmetrically arranged ejection positioning components 9 are arranged between the lower mold backing plate 1 and the secondary ejector plate 2, and the two symmetrically arranged ejection positioning components 9 are respectively positioned at two sides of the lower mold backing plate 1, the upper end parts of the primary thimbles 7 and the secondary thimbles 8 penetrate through the lower template 5 and the lower mold core 6 and extend into the molding cavity. The upper ejector plate 4 is provided with a plurality of limiting columns 41.

Wherein, be equipped with the footing 10 that two symmetries set up between lower bolster 1 and the lower bolster 5, be equipped with the clearance between the footing 10 that two symmetries set up, secondary thimble board 2, lower thimble board 3 and last thimble board 4 all are located the clearance to secondary thimble board 2, lower thimble board 3 and last thimble board 4 stack are in the same place. The lower die base plate 1 is provided with a plurality of gaskets 11, and the gaskets 11 are arranged between the lower die base plate 1 and the secondary ejector plate 2.

In the above structure, the secondary thimble 8 includes the secondary thimble body 81 and the thimble guide sleeve 82, the lower end portion of the secondary thimble body 81 is disposed on the secondary thimble plate 2, the thimble guide sleeve 82 is disposed on the upper thimble plate 4, and the upper end portion of the secondary thimble body 81 penetrates through the thimble guide sleeve 82.

As shown in fig. 4, the ejection positioning assembly 9 includes a positioning column 91, a spring 92, and a positioning guide block 93, a lower end of the positioning column 91 is disposed on the lower bolster 1, the spring 92 is disposed in the secondary ejector plate 2, one end of the positioning guide block 93 is connected to the spring 92, the other end of the positioning guide block 93 extends out of the secondary ejector plate 2, and an end of the positioning guide block 93 extending out of the secondary ejector plate 2 contacts with a side wall of the positioning column 91.

In the structure, the lower end part of the positioning column 91 is provided with a connecting convex part 94, the upper end part of the positioning column 91 is provided with a limiting convex part 95, the connecting convex part 94 and the positioning column 91 are arranged in an L shape, the connecting convex part 94 is connected with the lower die base plate 1 through a screw, and the horizontal position of the limiting convex part 95 is higher than the upper ejector plate 4.

In addition, the end of the positioning guide block 93 away from the positioning post 91 is provided with a first groove 96, and one end of the spring 92 is arranged in the first groove 96.

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

1. The utility model provides a but quick drawing of patterns injection mold's two-way location structure which characterized in that: comprises a lower die base plate (1), a secondary ejector pin plate (2), a lower ejector pin plate (3), an upper ejector pin plate (4), a lower die plate (5), a lower die core (6), a plurality of primary ejectors (7), a plurality of secondary ejectors (8) and two symmetrically arranged ejection positioning components (9), wherein the lower die base plate (1), the secondary ejector pin plate (2), the lower ejector pin plate (3), the upper ejector pin plate (4) and the lower die plate (5) are sequentially arranged from bottom to top, the lower die core (6) is arranged on the lower die plate (5), the plurality of primary ejectors (7) are arranged on the upper ejector pin plate (4), the plurality of secondary ejectors (8) are arranged on the secondary ejector pin plate (2), the two symmetrically arranged ejection positioning components (9) are arranged between the lower die base plate (1) and the secondary ejector pin plate (2), and the two symmetrically arranged ejection positioning components (9) are respectively positioned at two sides of the lower die base plate (1), the upper end parts of the primary thimbles (7) and the secondary thimbles (8) penetrate through the lower template (5) and the lower die core (6) and extend into the forming cavity.

2. The bi-directional positioning structure of an injection mold capable of rapid mold release according to claim 1, wherein: be equipped with two mold feet (10) that the symmetry set up between lower mould backing plate (1) and lower bolster (5), be equipped with the clearance between mold feet (10) that two symmetries set up, secondary thimble board (2), lower thimble board (3) and last thimble board (4) all are located the clearance to secondary thimble board (2), lower thimble board (3) and last thimble board (4) stack together.

3. The bi-directional positioning structure of an injection mold capable of rapid mold release according to claim 1 or 2, wherein: the lower die base plate (1) is provided with a plurality of gaskets (11), and the gaskets (11) are arranged between the lower die base plate (1) and the secondary ejector plate (2).

4. The bi-directional positioning structure of an injection mold capable of rapid mold release according to claim 1 or 2, wherein: secondary thimble (8) include secondary thimble body (81) and thimble uide bushing (82), the lower tip setting of secondary thimble body (81) is on secondary thimble board (2), thimble uide bushing (82) set up on last thimble board (4), thimble uide bushing (82) are run through to the upper end of secondary thimble body (81).

5. The bi-directional positioning structure of an injection mold capable of rapid mold release according to claim 1, wherein: ejecting locating component (9) includes reference column (91), spring (92) and location guide block (93), the lower tip setting of reference column (91) is on lower backing plate (1), spring (92) set up in secondary thimble board (2), the one end and the spring (92) of location guide block (93) are connected to the other end of location guide block (93) extends secondary thimble board (2), the tip that location guide block (93) extended secondary thimble board (2) contacts with the lateral wall of reference column (91).

6. The bi-directional positioning structure of an injection mold capable of rapid demolding according to claim 5, wherein: the lower tip of reference column (91) is equipped with connects convex part (94), the upper end of reference column (91) is equipped with spacing convex part (95), connect convex part (94) and reference column (91) and be "L" type setting to connect convex part (94) and pass through screw and lower mould backing plate (1) and connect, the horizontal position of spacing convex part (95) is higher than last thimble board (4).

7. The bi-directional positioning structure of an injection mold capable of rapid mold release according to claim 6, wherein: the end, away from the positioning column (91), of the positioning guide block (93) is provided with a first groove (96), and one end of the spring (92) is arranged in the first groove (96).

8. The bi-directional positioning structure of an injection mold capable of rapid mold release according to claim 1, wherein: the upper ejector plate (4) is provided with a plurality of limiting columns (41).