CN217531744U

CN217531744U - Mold delay ejection structure

Info

Publication number: CN217531744U
Application number: CN202220252824.8U
Authority: CN
Inventors: 严雄杰; 方维维; 刘泳
Original assignee: Zhongshan Hengbin Industrial Co ltd
Current assignee: Zhongshan Hengbin Industrial Co ltd
Priority date: 2022-02-07
Filing date: 2022-02-07
Publication date: 2022-10-04
Anticipated expiration: 2032-02-07

Abstract

The utility model discloses a mould time delay is ejecting structure, its characterized in that: the novel clock comprises a thimble, a delay needle, a mold body, a bottom thimble plate, a surface thimble plate and a bottom plate, wherein the mold body, the bottom thimble plate, the surface thimble plate and the bottom plate are sequentially arranged, the surface thimble plate is provided with a surface pinhole, the thimble is positioned in the surface pinhole and penetrates through the mold body, the bottom thimble plate is provided with a delay hole, the hole bottom of the delay hole is provided with a through hole, one end of the delay needle penetrates through the through hole and can be propped against the bottom plate, the other end of the delay needle is provided with a time needle cap, the time needle cap is positioned in the delay hole and can keep a distance with the hole bottom of the delay hole, and the hole bottom of the bottom thimble plate and the surface thimble plate can push the time needle cap to jack the thimble to eject a workpiece when the time delay hole moves.

Description

Mold delay ejection structure

Technical Field

The utility model relates to an injection mold, especially a mould delay is ejecting structure.

Background

The injection mold generally adopts an ejection structure that an ejector pin is matched with an ejector plate in order to realize ejection of a workpiece in a forming groove, and the ejector plate is connected with a shovel machine and pushes the ejector plate through the shovel machine and simultaneously drives the ejector pin to eject the workpiece in the forming groove.

However, some work piece products are prone to warp after demolding, which depends on material properties, gate selection, part geometry, mold design, and processing conditions. The factors influencing the method are as follows: orientation effects of plastic fibers, shrinkage differences in product structure, cooling irregularities, corner effects, etc.

In order to solve the problems, the applicant designs a mold delay ejection structure, wherein a delay thimble is arranged at an easily-deformed position of a product, when the product is ejected, an undeformed region is ejected first, an easily-deformed region is ejected later, and the stress direction of the product is changed by pulling and pulling the deformed region, so that the purpose of improving the buckling deformation is achieved.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a mould delay ejection structure.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a mould time delay ejection structure which characterized in that: the novel clock comprises a thimble, a delay needle, a mold body, a bottom thimble plate, a surface thimble plate and a bottom plate, wherein the mold body, the bottom thimble plate, the surface thimble plate and the bottom plate are sequentially arranged, the surface thimble plate is provided with a surface pinhole, the thimble is positioned in the surface pinhole and penetrates through the mold body, the bottom thimble plate is provided with a delay hole, the hole bottom of the delay hole is provided with a through hole, one end of the delay needle penetrates through the through hole and can be propped against the bottom plate, the other end of the delay needle is provided with a time needle cap, the time needle cap is positioned in the delay hole and can keep a distance with the hole bottom of the delay hole, and the hole bottom of the bottom thimble plate and the surface thimble plate can push the time needle cap to jack the thimble to eject a workpiece when the time delay hole moves.

The surface thimble plate is provided with a positioning hole, the surface pinhole is positioned at the bottom of the positioning hole, the end part of the thimble is provided with a thimble cap, and the thimble is positioned by matching the thimble cap with the positioning hole.

The thimble and the time-delay needle are both provided with a central hole, a forming rod is arranged in the central hole, one end of the forming rod is in contact positioning with the bottom plate, and the other end of the forming rod penetrates through the central hole and the die body.

The bottom plate is provided with a pressing plate groove, a pressing plate is arranged in the pressing plate groove, a rod hole is formed in the bottom surface of the pressing plate groove, a rod cap is arranged at the end of the forming rod, the forming rod penetrates through the rod hole and is positioned in a contact mode through the rod cap and the pressing plate groove, and the rod cap is pressed and locked through the pressing plate.

The utility model has the advantages that: the ejector pins and the time delay pins are arranged at the position where the workpiece is easy to deform, and only the ejector pins are arranged in the area where the workpiece is not deformed, so that when the workpiece is ejected, the bottom ejector plate and the surface ejector plate push the ejector pins to move firstly and the area where the workpiece is not deformed firstly; when the bottom ejector plate and the surface ejector plate move for a certain distance, the hole bottom of the delay hole pushes the time-delay cap to drive the time-delay needle to jack the thimble, and the thimble jacks up the easily deformed region of the workpiece, so that delay ejection is formed. In the process, the non-deformable area is firstly jacked, the easily deformable area is jacked later, and the stress direction of the product is changed by pulling the deformable area, so that the purpose of improving the buckling deformation of the workpiece is achieved.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is an internal structure view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

fig. 3 is a structural view of the thimble and the clock.

FIG. 4 is a structural view of the forming rod, the thimble and the clock.

Fig. 5 is a structural view of the base plate.

Detailed Description

Advantages and features of the present disclosure and methods of practicing the same will be clarified by the following embodiments described with reference to the accompanying drawings. This disclosure may, however, be embodied in different forms and should not be construed as 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 disclosure to those skilled in the art. Furthermore, the present disclosure is to be limited only by the scope of the claims.

The shapes, sizes, proportions, angles and numbers disclosed in the accompanying drawings for describing embodiments of the present disclosure are by way of example only, and are not intended to be limited to the details shown. Like reference numerals refer to like elements throughout the specification. In the following description, when a detailed description of related known functions or configurations is determined to unnecessarily obscure the focus of the present disclosure, the detailed description will be omitted. In the case of using "including", "having", and "including" described in this specification, other components may be added unless "only" is used. Unless indicated to the contrary, singular terms may include the plural.

In explaining the elements, although not explicitly described, the elements are understood to include error ranges.

In describing the positional relationship, for example, when the positional relationship is described as "on … …", "above … …", "below … …", and "adjacent to … …", one or more portions may be arranged between two other portions unless "immediately" or "directly" is used.

In describing the temporal relationship, for example, when the temporal order is described as "after … …", "subsequently", "next", and "before … …", the case of discontinuity may be included unless "just" or "directly" is used.

It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present disclosure.

As will be well understood by those skilled in the art, the features of the different embodiments of the present disclosure may be partially or fully coupled or combined with each other and may cooperate with each other and be technically driven in various ways. Embodiments of the present disclosure may be performed independently of each other, or may be performed together in an interdependent relationship.

Referring to fig. 1 to 3, the utility model discloses a mould time delay ejection structure, including thimble 1, time delay needle 2 and die body 3, end thimble board 4, face thimble board 5, bottom plate 6 that the order set up, end thimble board 4 combines as an organic whole with face thimble board 5, and slides through the guide of slide bar (not showing in the picture), and slide bar one end is fixed on the roof and the other end is fixed on die body 3, be equipped with the face pinhole on the face thimble board 5, thimble 1 is located the face pinhole and passes die body 3, be equipped with time delay hole 7 on the end thimble board 4, the hole bottom of this time delay hole 7 is equipped with the through-hole, time delay needle 2 one end is passed the through-hole and can be propped up with bottom plate 6, time delay needle cap 8 is established to the other end of time delay needle 2, and this time delay needle cap 8 is located time delay hole 7 and can keep the hole bottom of time delay hole 7 at a distance, time delay needle cap 8 of time delay Shi Kong can promote time delay needle cap 8 and push up thimble 1 and with work piece ejection when end of work piece 5 removes.

In the above-mentioned structure, through the setting of end thimble board 4 and face thimble board 5 be convenient for process to and be convenient for assemble thimble 1 and time delay needle 2, the face pinhole is coaxial with time delay hole 7 and link up, as further structure: the thimble structure is characterized in that the surface thimble plate 5 is provided with a positioning hole, the surface pinhole is positioned at the bottom of the positioning hole, the end part of the thimble 1 is provided with a thimble cap 9, and the thimble 1 is positioned by matching the thimble cap 9 with the positioning hole, so that the position of the thimble 1 can be conveniently determined when the thimble 1 is assembled.

The working process of the structure is briefly described as follows: when the compound die was moulded plastics, thereby 2 one ends of time delay needle pass the through-hole and can offset fixed position with bottom plate 6, and thereby thimble 1 offsets fixed position with time delay needle 2, when the die sinking needs take out the work piece, the shovel machine drives end thimble board 4 and face thimble board 5 and removes, after end thimble board 4 and face thimble board 5 removed a determining deviation, cap 8 and drive time delay needle 2 jack-up thimble 1 when the hole bottom of time delay hole 7 just promoted, and thimble 1 jack-up work piece yielding region, thereby form the time delay and ejecting.

As shown in fig. 4 and 5, as a further structural design, the thimble 1 and the time-delay needle 2 are provided with central holes, the central hole is provided with a forming rod 10, one end of the forming rod 10 is in contact with the bottom plate 6 for positioning, and the other end of the forming rod 10 penetrates through the central hole and the mold body 3, the time-delay structure is applied to forming and ejecting a perforated connecting cylinder on the surface of a workpiece, and the other end of the forming rod 10 is positioned in the hole of the connecting cylinder after the workpiece is injection molded, so that the forming rod 10 cannot be ejected out of the hole along with the movement of the thimble 1 plate when the workpiece is demolded, and the workpiece cannot be separated from the forming rod 10, but the position of the connecting cylinder needs to adopt a time-delay ejecting structure, so that the structure of the forming rod 10 is provided with the central hole, and during ejecting, the thimble 1 and the time-delay needle 2 can be moved along with the movement of the thimble 1 plate to eject the workpiece, and the forming rod 10 is still, so that the forming rod 10 is also ejected out of the connecting cylinder. As the mounting and fixing structure of the molding rod 10: the bottom plate 6 is provided with a pressure plate groove 11, a pressure plate (not shown in the figure) is arranged in the pressure plate groove 11, a rod hole 12 is formed in the bottom surface of the pressure plate groove 11, a rod cap 13 is arranged at the end of the forming rod 10, the forming rod 10 penetrates through the rod hole 12 and is in contact positioning with the bottom surface of the pressure plate groove 11 through the rod cap 13, the rod cap 13 is pressed and locked through the pressure plate, the pressure plate is fixed through a screw, and the structure is convenient to install and fix and the forming rod 10 is positioned through the rod cap 13.

The mold delayed ejection structure provided by the embodiment of the present invention is described in detail above, and the principle and the implementation of the present invention are explained by applying specific examples herein, and the description of the above embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.

Claims

1. The utility model provides a mould time delay ejection structure which characterized in that: the novel needle lifting device comprises a thimble, a delay needle, a die body, a bottom thimble plate, a surface thimble plate and a bottom plate, wherein the die body, the bottom thimble plate, the surface thimble plate and the bottom plate are sequentially arranged, the surface thimble plate is provided with a surface pinhole, the thimble is positioned in the surface pinhole and penetrates through the die body, the bottom thimble plate is provided with a delay hole, the hole bottom of the delay hole is provided with a through hole, one end of the delay needle penetrates through the through hole and can be in contact positioning with the bottom plate, the other end of the delay needle is provided with a time needle cap, the time needle cap is positioned in the delay hole and can keep a distance with the hole bottom of the delay hole, and the hole bottom of the bottom thimble plate and the surface thimble plate moving delay hole can push the time needle cap to push the thimble so as to push out a workpiece.

2. The mold delay ejection structure according to claim 1, wherein: the surface thimble plate is provided with a positioning hole, the surface pinhole is positioned at the bottom of the positioning hole, the end part of the thimble is provided with a thimble cap, and the thimble is positioned by matching the thimble cap with the positioning hole.

3. The mold delay ejection structure according to claim 1, wherein: the thimble and the time-delay needle are both provided with a central hole, a forming rod is arranged in the central hole, one end of the forming rod is in contact positioning with the bottom plate, and the other end of the forming rod penetrates through the central hole and the die body.

4. A mold delay eject structure as claimed in claim 3, wherein: the bottom plate is provided with a pressing plate groove, a pressing plate is arranged in the pressing plate groove, a rod hole is formed in the bottom surface of the pressing plate groove, a rod cap is arranged at the end of the forming rod, the forming rod penetrates through the rod hole and is positioned in a contact mode through the rod cap and the pressing plate groove, and the rod cap is pressed and locked through the pressing plate.