KR20020008258A - Core Changing-type Mould Structure - Google Patents

Abstract

PURPOSE: Structure of a core compatible die is provided to reduce the cost and period for producing a die by forming a die as a cassette type, to improve the degree of precision, to easily assemble, disassemble and install and to improve the stability of a die. CONSTITUTION: Upper and lower cores(31,32) are compatible and easy to install and remove. The upper cores are formed as a core assembly(30) including many side core members(34) surrounding the upper and lower cores. A core combining unit of a base frame(10) is formed with respect to the core assembly. An unloading unit(40) is combined in such a manner that the core assembly is compatible and easy to install and remove. The unloading unit prevents deformation of a die and improves the degree of precision and stability. The unloading unit has a small ejector plate(42) whereon an unloading pin is clamped. The core assembly is formed compact to be easily installed in the core combining unit. The side core members are thread-combined with each other. According to the reduced length of the unloading pin, degree of precision is improved remarkably. Further, stable operation and minimized deformation are realized.

Description

Core Compatible Mold Structure

The present invention relates to a breakthrough economically compatible core compatible mold, which enables the core for forming an injection molding to be interchangeably mounted on the base frame of the mold in the mold, thereby significantly reducing the manufacturing cost and period of the mold.

As shown in FIG. 2, the conventional mold 100 has a heat insulating plate 111-an upper fixing plate 112-a runner stripper plate 113-an upper plate 114-a lower plate 115-a supporting plate 116. -The base frame 110 is formed in the order of the legs (117)-fixing plate (118)-insulation plate (119),

Cores 131 and 132 are formed to be coupled between the upper plate 114, the lower plate 1115, and the support plate 116, respectively.

The lower plate 115 side is provided with a takeout means 140 consisting of a return pin 143 supported by a spring and a tight plate 141 to which the takeout pin 147 is fixed to guide the takeout pin 145. This is done.

In such a mold structure, the prior art is formed by the configuration of the core 130 is coupled to the base frame 110 to the outer shape of the core according to the shape of the injection molding (M) every time, according to the base frame 110 is formed, and eventually a set of molds including the base frame 110, the core 130, the takeout means 140, etc. are manufactured for only one product, and conversely, an injection molded product of one shape shape. In order to have a full mold,

Manpower, time, materials and costs for the mold production was excessively problematic.

In addition, when replacing a different mold from the injection machine has to disassemble and clean the entire suit, there was a big problem of waste of manpower and time.

On the other hand, in the prior art, the draw pin 147 can only be fixed to the contact plate 141, so that the length of the draw pin 147 must be formed to be long, so that deformation such as bending occurs and the precision is lowered. There was this.

The present invention has been made to solve the above problems,

The object of the present invention is to form a "cassette type" to form a variety of cores by mutually forming so as to be compatible with the base frame of the mold, by changing only the core bundle as one base frame, to inject a variety of products,

It provides a mold structure that significantly shortens the manufacturing cost and period of the mold, improves precision, and is easy to disassemble and install.

Another object of the present invention is to reduce the length of the take-off pin for pushing out the hardened injection molding to improve the precision by stable operation, to minimize the deformation, to provide a core compatible mold structure to improve the precision and stability of the mold Is in.

1 is a block diagram of an embodiment according to the present invention.

2 is a block diagram of a mold according to the prior art.

* Description of the symbols for the main parts of the drawings *

1: core compatible mold 10: frame

11: Insulation board 12: Top plate

13: Runner stripper version 14: Senate version

15: Lower House 16: Base Plate

17: legs 18: frozen

19: insulation board 30: core bundle

31: Core 32: Core

33: runner stripper core 34: side core member

35: screw 40: ejection means

41: compact plate 42: rough plate

43: return pin 45: sound turn pin

47: ejection pin 49: spring

M: Injection

Core compatible mold structure according to the present invention to achieve the above object is

Insulation plate-Upper fixing plate-Runner stripper plate-Upper plate-Lower plate-Support plate-Leg-Fixing plate-Insulation plate

An ejection means formed on the lower plate side and including a eject plate, a return pin, and an eject pin;

In the mold structure comprising a core consisting of an upper core coupled to the upper plate, a support plate and a lower core coupled to the lower plate,

The upper and lower cores are formed of a core bundle including a plurality of side core members surrounding the upper and lower cores, and are formed to be compatible with and detachable from the coupling portion of the base frame.

The core coupling portion of the base frame is also formed corresponding to the core bundle,

The takeout means is characterized in that the core bundle is easy to be compatible and removable, and formed to improve precision and stability.

The core bundle consists of a plurality of upper and lower core body, and a plurality of side core members to be coupled to the upper and lower plates surrounding the core body,

The plurality of edge core members are screwed together to form a bundle together with the upper core or the lower core body, and are screwed to the upper plate and the support plate to be compatible with the base frame.

The take-out means provides a high density plate and a sound turn pin predetermined to the high density plate,

The take-out pin is characterized in that it is fixed to the compact plate.

Hereinafter, an embodiment of a core compatible mold structure of the present invention will be described in more detail with reference to the accompanying drawings.

1 is a core compatible mold structure showing the configuration of one embodiment according to the present invention.

As shown, the core compatible mold structure according to the present invention,

Insulation Plate (11)-Upper Fixing Plate (12)-Runner Stripper Plate (13)-Upper Plate (14)-Lower Plate (15)-Support Plate (16)-Leg (17)-Fixing Plate (18)-Insulation Plate (19) A base frame 10 formed in the order of the back,

Take-out means (40) formed on the lower plate (15) side including a plate (41) and a return pin (43) and a take-out pin;

In the mold structure comprising a core composed of an upper core 31 coupled to the upper plate 14, and a lower core 32 coupled to the support plate 23 and the lower plate 24,

The upper and lower cores 31 and 32 are formed on the adjacent base frame so as to be compatible and detachable, and the core bundle 30 including a plurality of edge core members 34 surrounding the upper and lower cores. Formed into,

Core coupling portion of the base frame 10 is also formed corresponding to the core bundle 30,

Combination of the take-out means 40 is to be compatible and detachable of the core bundle 30, to prevent deformation, is formed to improve the precision and stability.

The core bundle 30 includes a runner stripper core 33 formed on the runner stripper plate 13, and the core coupling portion of the base frame includes the runner stripper plate 13, the upper plate 14, and the lower plate 15. ), Support plate 16 and the like.

The core bundle 30 has a plurality of sides for coupling the upper and lower cores 31 and 32 bodies and the upper and lower cores 14 and 15 surrounding the upper and lower core bodies. It is made of a core member 34, the outer portion is preferably compactly formed so that the attachment and detachment of the core coupling portion of the base frame to be bound.

The plurality of edge core members 34 are mutually screwed together to form a bundle together with the upper core 31 or the lower core 32, and the screws 35 are coupled to the upper plate 14 and the support plate 16 to form a bundle. It is preferably formed to be compatible with the mold 10.

On the other hand, the take-out means 40 is a high-tight plate 42 on the upper part of the mill plate 41, the return pin 43 is formed, and a sound turn pin for guiding the take-out pins to be described later on the small plate 42 ( 45),

The extraction pin 47 is fixedly formed on the compact plate 42.

Reference numeral 49 is a spring.

Core compatible mold structure according to the present invention having the above configuration, in the manufacture of the mold, the base frame (10), the core. The base frame 10 occupying the absolute part of the mold is repeatedly and semi-permanently used without producing the entire suit, such as the ejection means 40, and only the core bundle 30 part is separated according to the injection product M. By forming, changing and mounting, it is a dramatically simple structure that mold production for new injection molding is completed,

The edge member cores 34 surrounding the upper and lower cores 31 and 32 bodies of the core bundle are formed to be screwed to the adjacent upper plate 14 and the support plate 16 to provide compatibility.

The present invention is a so-called 'cassette type' that can be ejected indefinitely by mounting only the core bundle on the main frame of the main body, such as an image and a sound player to reproduce the contents by replacing only the cassette in the main body insertion space. I can speak.

In addition, the ejection means 40 is provided with a small plate 42 to the plate 41, and fixedly formed on the plate 41, the pin taking the pin 47, the prior art was fixed to the plate 41 Compared with this, the length of the take-out pin 47 can be significantly shortened, thereby increasing the precision, operating stably, and minimizing deformation such as bending.

On the other hand, the sound turning pin 45 for guiding the take-out pin 47 is formed on the small plate to further improve the precision operation and stability of the take-out pin 47.

In the mold structure according to the present invention,

The parts replaced together with the core bundle at the time of core bundle 30 compatibility are a sound turn pin 45 inserted into the lower core bundle 32, a blowout pin 47, and a compact plate 42 to which they are fixed. The hatches are densely expressed.

That is, in the present invention, the part required to be newly manufactured for a new injection molded product is a core bundle 30 and a roughness plate 42, a sound turn pin 45, and a blowout pin 47.

The upper and fixed plates 12 and 18, the runner stripper plate 13, the upper and lower plate 14 and 15, and the support plate 16, as well as the heat insulating plates 11 and 19 which occupy the absolute part in the entire mold. The base frame 10, which consists of the legs 17 and their coupling means, has a significant advantage that no new fabrication is necessary.

In addition, in the prior art, when replacing the mold in the injection molding machine, it was difficult to dismantle the entire suit including the core, the base frame, and the ejection means for cleaning, but in the present invention, the core bundle is not necessary to be easily dismantled. do.

As described in detail above, the core compatible mold structure according to the present invention is compatible with the so-called 'cassette type' to replace only the core bundle part according to the injection molding to the base frame,

By using one base frame semi-permanently, only the core can be newly manufactured and replaced to inject various products.

The breakthrough effect is expected to significantly reduce the manufacturing cost and period of the mold.

In addition, the present invention by fixing the take-off pin to the small plate to shorten its length, to improve the precision, to minimize the deformation, to ensure a stable operation, and to improve the precision and stability of the entire mold, It is a technology that benefits in many ways.

Claims (3)

Insulation plate-Upper fixing plate-Runner stripper plate-Upper plate-Lower plate-Support plate-Leg-Fixing plate-Insulation plate A takeout means formed on the lower plate side and including a mill plate, a return pin, and a takeout pin; In the mold structure comprising a core coupled to the upper plate and the support plate and the lower plate, The upper and lower cores are formed of a core bundle including a plurality of side core members surrounding the upper and lower cores, and are formed to be compatible with and detachable from the coupling part of the base frame. Core coupling portion of the base frame is also formed corresponding to the core bundle, The take-out means is compatible with and detachable from the core bundle, the core compatible mold structure, characterized in that the precision is formed to be stable. The method of claim 1, The core bundle consists of a plurality of upper and lower core body, and a plurality of side core members to be coupled to the upper and lower plates surrounding the core body, The plurality of side core members are screwed to each other to form a bundle with the upper core or lower core body, the core compatible mold structure, characterized in that the screw is coupled to the upper plate and the base plate to be compatible with the base frame. The method of claim 1, The take-out means is provided with a high-tight plate and a sound turn pin which is fixed to the high-tight plate on the top of the tight plate, The ejection pins are core-compatible mold structure, characterized in that fixed to the compact plate.