CN219947116U

CN219947116U - Slide insert pin matching structure, mold shape and position structure and injection mold

Info

Publication number: CN219947116U
Application number: CN202320368081.5U
Authority: CN
Inventors: 曹晓英; 曾建明
Original assignee: Huizhou Yaoying Precision Technology Co ltd
Current assignee: Huizhou Yaoying Precision Technology Co ltd
Priority date: 2023-03-02
Filing date: 2023-03-02
Publication date: 2023-11-03
Anticipated expiration: 2033-03-02

Abstract

The utility model relates to a slide insert needle matching structure, a mold shape and position structure and an injection mold, wherein the slide insert needle matching structure comprises a slide and an insert needle, a guide hole coaxially matched with the insert needle is formed in the slide, and the slide is sleeved at the inner end of the insert needle through the guide hole; the inner wall of the guide hole is provided with a limiting surface, and the insert pin is provided with a limiting part matched with the limiting surface; the outer end of the insert pin is connected with a driving piece, and the driving piece can drive the insert pin to axially move along the guide hole; this slide insert needle cooperation structure has realized inserting the needle and has moved the separation of position, moves the position cover and establishes at the needle inner of inserting, moves position, inserts the needle components of a whole that can function independently for move position, insert the needle and can be independent motion respectively, the accurate control of being convenient for inserts the needle, guarantees to insert the needle and lean on broken position stable cooperation with the mould, avoids after the product shaping, avoids the inboard of pivot hole to lean on broken face to produce to drape over the front, avoids the pivot hole to warp.

Description

Slide insert pin matching structure, mold shape and position structure and injection mold

Technical Field

The utility model relates to the technical field of injection molding processing, in particular to a slide insert matching structure, a mold shape and position structure and an injection mold.

Background

Two sides of the end part of the part of injection molding product are provided with matched rotating shaft holes for installing rotating shaft parts. In the existing injection mold, the formed insert pin and row position of the rotating shaft hole adopt an integrated structure. The slide is driven to move by the inclined guide post of the die, the insert needle moves along with the slide in the die closing process, and after the die is closed, the inner end of the insert needle reaches the die breaking position. During the use, the sliding fit structure of oblique guide pillar department is easy wearing and tearing, influences the displacement precision of mold insert for the inner of mold insert is difficult to stable cooperation with the mould position that leans on. If the inner end of the insert pin is too loose with the abutting position of the die, a burr can be generated on the inner abutting surface of the rotating shaft hole of the injection molded product; if the inner end of the insert pin is propped against the breaking position of the die to be too tight, the insert pin can deform, and the rotating shaft hole of the injection molded product is deformed and eccentric.

Disclosure of Invention

The utility model aims at overcoming the defects, and provides a slide insert matching structure, a mold shape and position structure and an injection mold, so that the insert and the slide are separated.

The first technical scheme adopted for solving the technical problems is to provide a slide insert matching structure which comprises a slide and an insert;

the row position is provided with a guide hole coaxially matched with the insert needle, and the row position is sleeved at the inner end of the insert needle through the guide hole;

the inner wall of the guide hole is provided with a limiting surface, and the insert pin is provided with a limiting part matched with the limiting surface.

Further, the outer end of the insert pin is connected with a driving piece; the driving piece can drive the insert pin to axially move along the guide hole.

Further, the outer end of the insert pin is connected with a pin seat, and the pin seat is connected with a driving piece.

Further, the driving piece is an air cylinder, a hydraulic cylinder or an electric cylinder.

Further, the guide hole is a stepped hole with a small inside and a large outside, a stepped surface of the stepped hole forms a limiting surface, the insert pin is a stepped shaft, and the limiting part is a stepped surface of the insert pin.

The second technical scheme adopted by the utility model for solving the technical problems is that a die shape and position structure comprises a front die and a rear die, wherein a row position and an insert needle are arranged on the side surface of the rear die matched with the front die;

the row positions and the insert pins are arranged in groups, and each group comprises two units symmetrically arranged at two sides of the die forming cavity;

the unit comprises the line position insert pin matching structure;

the driving piece is fixedly arranged on the rear die, the driving end of the driving piece is provided with a sliding block, and the needle seat is arranged on the sliding block;

the rear die is provided with an inner chute and an outer chute which are parallel, the slide block is arranged in the inner chute in a sliding manner, and the slide block is arranged in the outer chute in a sliding manner.

Further, a connecting part for accommodating the outer end of the needle seat is arranged on the sliding block, a mounting convex part is arranged on the lower side surface of the needle seat, and a positioning groove for accommodating the mounting convex part is arranged on the connecting part.

Furthermore, the side surface of the front die, which is matched with the rear die, is provided with an inclined guide post, the row position is provided with an inclined hole coaxial with the inclined guide post, and the row position is sleeved on the inclined guide post through the inclined hole.

Further, the bottom surface of outer spout is provided with wear-resisting cushion.

The third technical scheme adopted by the utility model for solving the technical problem is to provide an injection mold, which comprises the mold shape and position structure.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model provides a move position and inlay needle cooperation structure has realized the separation of inlaying the needle with move the position, moves the position cover and establishes at inlaying the needle inner, moves position, inlays the needle components of a whole that can function independently for move position, inlay the needle and can be respectively independent motion, set up the driving piece and be convenient for accurate control inlay the needle, guarantee to inlay the needle and lean on broken position stable cooperation of mould, avoid the product shaping back, the inboard in pivot hole leans on broken face to produce and drapes over one's shoulders the front and pivot hole warp.

The mold shape and position structure is characterized in that through the slide insert needle matching structure, the slide and insert needle movement are controlled by different driving pieces respectively and independently, so that the insert needle is convenient to control accurately, and the insert needle and the mold are guaranteed to be matched stably at the position close to the break.

The injection mold has the advantages that the movement of the slide and the movement of the insert needle are separated through the mold shape and position structure, the insert needle and the mold leaning position are guaranteed to be matched stably, and the injection molding quality of products is improved.

Drawings

The patent of the utility model is further described below with reference to the accompanying drawings.

Fig. 1 is a schematic diagram of a mold employing a slide insert mating structure.

Fig. 2 is an enlarged view of a portion a in fig. 1.

FIG. 3 is a schematic diagram of the matching structure of the row and the oblique guide posts.

In the figure:

1-front mold; 2-back mold; 3-row bits; 4-inserting a needle; 5-a driving member; 6, a limiting surface; 7-a needle seat; 8-a sliding block; 9-connecting seats; 10-mounting a convex part; 11-oblique guide posts; 12-inclined holes.

Detailed Description

The preferred embodiments of the present utility model will be described in more detail below, however, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the utility model. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Two sides of the end part of the part of injection molding product are provided with matched rotating shaft holes for installing rotating shaft parts. In the existing injection mold, the formed insert pin and row position of the rotating shaft hole adopt an integrated structure. The slide is driven to move by the inclined guide post 11 of the die, and in the die closing process, the insert needle moves along with the slide, and after the die is closed, the inner end of the insert needle reaches the die abutting position. During the use, the sliding fit structure of oblique guide pillar 11 department is easy wearing and tearing, influences the displacement precision of mold insert for the mold insert inner is difficult to stable cooperation with the mould position that leans on broken. If the inner end of the insert pin is too loose with the abutting position of the die, a burr can be generated on the inner abutting surface of the rotating shaft hole of the injection molded product; if the inner end of the insert pin is propped against the breaking position of the die to be too tight, the insert pin can be deformed, and a rotating shaft hole of the injection molded product can be deformed and eccentric.

Example 1

In order to solve the above problems, embodiment 1 provides a slide insert matching structure, which realizes the separation of insert and slide.

As shown in fig. 2, a slide insert matching structure comprises a slide 3 and an insert 4; after being used on a die, the row position 3 is used for forming an injection molding cavity after the die is molded, and the insert needle 4 is used for extending into the injection molding cavity to be matched with the position of the die close to the broken position after the die is molded, and is wrapped by injection molding materials to process a device hole; the row position 3 is provided with a guide hole coaxially matched with the insert needle 4, and the row position 3 is sleeved at the inner end of the insert needle 4 through the guide hole; the inner wall of the guide hole is provided with a limiting surface 6, and the insert pin 4 is provided with a limiting part matched with the limiting surface 6; the outer end of the insert pin 4 is connected with a driving piece 5; the driving piece 5 can drive the insert pin 4 to axially move along the guide hole.

After being used for the mould, the mould type closes, and line position 3 moves in place, then drives insert 4 and moves in place along its axial, and when spacing portion supported spacing face 6, insert 4 moved in place, at this moment, through the spacing of driving piece 5 application of force and line position 3, guarantees insert 4 inner and the stable cooperation of mould position of leaning on broken, makes insert 4 not receive the influence of injection moulding pressure.

In this embodiment, the outer end of the insert 4 is connected to a hub 7, and the hub 7 is connected to the driving member 5.

In this embodiment, the driving member 5 is a cylinder, a hydraulic cylinder or an electric cylinder, and in practical applications, a cylinder is preferably used.

In this embodiment, the guide hole is a stepped hole with a small inside and a large outside, a stepped surface of the stepped hole forms a limiting surface 6, the insert pin 4 is a stepped shaft, and the limiting part is a stepped surface of the insert pin 4.

This slide insert needle cooperation structure has realized the separation of insert needle 4 and slide 3, and slide 3 cover is established at insert needle 4 inner, slide 3, insert needle 4 components of a whole that can function independently for slide 3, insert needle 4 can the independent motion respectively, and the accurate control of being convenient for inserts needle 4 guarantees that insert needle 4 and mould lean on broken position stable cooperation, avoids after the product shaping, avoids the inboard of pivot hole to lean on broken face to produce to drape over the front, avoids pivot hole deformation.

Example 2

Embodiment 2 on the basis of embodiment 1, a mold positioning structure is provided to ensure concentricity of the matched different spindle holes.

As shown in fig. 1-3, the mold shape and position structure comprises a front mold 1 and a rear mold 2, wherein a row position 3 and an insert needle 4 are arranged on the side surface of the rear mold 2 matched with the front mold 1; the row positions 3 and the insert pins 4 are arranged in groups, and each group comprises two units symmetrically arranged at two sides of the die forming cavity; the unit comprises the line position insert pin matching structure; the symmetrical structure can ensure the concentricity requirement of the processed rotating shaft holes at the two ends.

The driving piece 5 is fixedly arranged on the rear die through a connecting seat 9, a sliding block 8 is arranged at the driving end of the driving piece 5, the needle seat 7 is arranged on the sliding block 8, and the insert needle 4 is independently driven through the driving piece 5, so that the insert needle 4 and the row position 3 are actuated in two steps;

in order to ensure the moving stability of the row position 3 and the insert needle 4, an inner chute and an outer chute which are parallel are arranged on the rear die 2, the row position 3 is arranged in the inner chute in a sliding way, and the sliding block 8 is arranged in the outer chute in a sliding way.

The side surface of the front die 1 matched with the rear die is provided with an inclined guide post 11, the row position 3 is provided with an inclined hole 12 coaxial with the inclined guide post 11, and the row position 3 is sleeved on the inclined guide post 11 through the inclined hole 12; the inclined guide post 11 is driven to move by the front die 1, and in the moving process, the inclined guide post 11 applies force to the inclined hole 12, so that the row position 3 is driven to move.

When the sliding block is used on a die, the sliding block 3 is driven to move inwards by the inclined guide post 11 when the die is used on the die, and the sliding block 3 abuts against the inner end of the inner sliding groove; after the mold is closed, the driving piece 5 drives the insert 4 to move to the position along the axial direction of the insert, and when the limiting part of the insert 4 abuts against the limiting surface 6 of the action after the insert is in place, at the moment, the inner end of the insert 4 is ensured to be stably matched with the position of the mold close to the broken position by the force application of the driving piece 5 and the limiting of the row position 3, so that the insert 4 is not influenced by injection molding pressure; then, injection molding of the product can be performed; after the product is injection molded, the driving piece 5 drives the insert 4 to move outwards along the axis to withdraw, so that the insert 4 is separated from the product; and then opening the die, wherein in the process of opening the die, the inclined guide pillar 11 drives the row position 3 to move outwards and withdraw.

In this embodiment, the connecting portion that holds the outer end of needle file 7 is offered on the slider 8, needle file 7 downside is provided with installation convex part 10, be provided with the constant head tank that holds installation convex part 10 on the connecting portion, installation convex part 10 can improve assembly efficiency with the cooperation of constant head tank. During assembly, the needle seat 7 is arranged on the sliding block 8, the installation convex part 10 is accommodated in the positioning groove, and then the needle seat 7 and the sliding block 8 are locked by the screw, so that the assembly can be completed, and the structural design improves the assembly efficiency.

In the embodiment, the bottom surface of the outer chute is provided with the wear-resistant cushion block, so that sliding wear is reduced, and the service life of the die is prolonged.

This mould shape and position structure, through the line position needle cooperation structure in embodiment 1, by the line position of the independent control 3 of different driving pieces 5 respectively, insert needle 4 removal, be convenient for accurate control insert needle 4, insert needle 4 through the independent control of driving piece 5, with insert needle 4 with line position 3 in two steps of actions, thereby avoid the deformation and the eccentric risk of product hole site, guarantee insert needle 4 and mould and lean on broken position stable cooperation, guarantee the concentricity in matched with different pivot holes, improve product injection moulding quality.

Example 3

Example 3 an injection mold was provided on the basis of example 2.

As shown in fig. 1, the injection mold comprises the mold shape and position structure, and when the mold is formed, the slide position 3 is driven to move into position by the inclined guide post 11, and the slide position 3 abuts against the inner end of the inner slide groove; after the mold is closed, the driving piece 5 drives the insert 4 to move to the position along the axial direction of the insert, and when the limiting part of the insert 4 abuts against the limiting surface 6 of the action after the insert is in place, at the moment, the inner end of the insert 4 is ensured to be stably matched with the position of the mold close to the broken position by the force application of the driving piece 5 and the limiting of the row position 3, so that the insert 4 is not influenced by injection molding pressure; then, injection molding of the product can be performed; after the product is injection molded, the driving piece 5 drives the insert 4 to move outwards along the axis to withdraw, so that the insert 4 is separated from the product; and then opening the die, wherein in the process of opening the die, the inclined guide pillar 11 drives the row position 3 to move outwards and withdraw.

The injection mold separates the actions of the row position 3 and the insert needle 4 through the mold shape and position structure in the embodiment 2, ensures the stable matching of the insert needle 4 and the mold leaning position, ensures the concentricity of different matched rotating shaft holes, and improves the injection molding quality of products.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model. The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

If the utility model discloses or relates to components or structures fixedly connected with each other, then unless otherwise stated, the fixed connection is understood as: a detachable fixed connection (e.g. using a bolt or screw connection) can also be understood as: the non-detachable fixed connection (e.g. riveting, welding), of course, the mutual fixed connection may also be replaced by an integral structure (e.g. integrally formed using a casting process) (except for obviously being unable to use an integral forming process).

The foregoing description of embodiments of the utility model has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the improvement of technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. The utility model provides a slide insert needle cooperation structure, includes slide, inserts the needle, its characterized in that:

2. The slide insert pin mating structure according to claim 1, wherein: the outer end of the insert pin is connected with a driving piece, and the driving piece can drive the insert pin to axially move along the guide hole.

3. The slide insert pin mating structure according to claim 2, wherein: the outer end of the insert pin is connected with a pin seat, and the pin seat is connected with a driving piece.

4. A slide insert pin mating structure according to claim 3, wherein: the driving piece is an air cylinder, a hydraulic cylinder or an electric cylinder.

5. A slide insert pin mating structure according to claim 3, wherein:

the guide hole is a stepped hole with a small inside and a large outside, a stepped surface of the stepped hole forms a limiting surface, the insert pin is a stepped shaft, and the limiting part is a stepped surface of the insert pin.

6. The utility model provides a mould shape and position structure, includes front mould, back mould, its characterized in that:

the side surface of the rear die, which is matched with the front die, is provided with a row position and an insert pin;

the unit comprising a slide insert mating structure according to any one of claims 3 to 5;

7. The mold form and location structure of claim 6, wherein: the sliding block is provided with a connecting part for accommodating the outer end of the needle seat, the lower side surface of the needle seat is provided with a mounting convex part, and the connecting part is provided with a positioning groove for accommodating the mounting convex part.

8. The mold form and location structure of claim 6, wherein: the side of the front die, which is matched with the rear die, is provided with an inclined guide post, the row position is provided with an inclined hole coaxial with the inclined guide post, and the row position is sleeved on the inclined guide post through the inclined hole.

9. The mold form and location structure of claim 6, wherein: the bottom surface of outer spout is provided with wear-resisting cushion.

10. An injection mold, characterized in that: a mould form and location structure comprising any one of claims 6 to 9.