KR200467195Y1 - Tool for adjusting ejector plate of injection mold - Google Patents

Tool for adjusting ejector plate of injection mold Download PDF

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Publication number
KR200467195Y1
KR200467195Y1 KR2020110011630U KR20110011630U KR200467195Y1 KR 200467195 Y1 KR200467195 Y1 KR 200467195Y1 KR 2020110011630 U KR2020110011630 U KR 2020110011630U KR 20110011630 U KR20110011630 U KR 20110011630U KR 200467195 Y1 KR200467195 Y1 KR 200467195Y1
Authority
KR
South Korea
Prior art keywords
bolt
injection mold
coupling body
insertion hole
bolt insertion
Prior art date
Application number
KR2020110011630U
Other languages
Korean (ko)
Inventor
최지연
윤관원
이장현
Original Assignee
최지연
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 최지연 filed Critical 최지연
Priority to KR2020110011630U priority Critical patent/KR200467195Y1/en
Application granted granted Critical
Publication of KR200467195Y1 publication Critical patent/KR200467195Y1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/2602—Mould construction elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/4005—Ejector constructions; Ejector operating mechanisms

Abstract

The present invention relates to a prefabricated jig for adjusting the plate of the injection mold for adjusting the plate forcibly raised for work such as mold repair by assembling to the injection mold, and more specifically, an outer cylinder having a screw hole 11 therein ( 10); A threaded portion 21 is formed at the bottom to screw the screw hole of the outer cylinder, and a bolt insertion hole 22 penetrated up and down in the center and a seating groove 23 having a larger diameter than the bolt insertion hole in the upper portion of the bolt insertion hole. An inner coupling body 20 forming a); Rotating bushing 30 which is coupled to the rolling groove 23 by the bearing 31 in the seating groove 23 of the inner coupling body to form a bolt insertion hole 32 penetrated vertically in the center; The head of the bolt at the time of screw rotation of the bolt 40 which is inserted into the bolt inserting holes 32 and 22 of the rotary bushing 30 and the inner coupling body 20 and is screwed to the supporting rod supporting the upper and lower mill plates of the injection mold ( Since the rotary bushing 30, which is seated 42, cancels the rotational friction force while rolling, the adjustment of the upper and lower plates is effective, and is characterized by preventing wear damage by the rotational frictional force of the movable side template as in the prior art.

Description

TOOL FOR ADJUSTING EJECTOR PLATE OF INJECTION MOLD}

The present invention relates to a prefabricated tool for assembling to an injection mold to adjust the plate to be forcibly raised for work such as mold repair. More specifically, the center of the outer cylinder is provided on a support rod for supporting the plate at the top of the die on the movable side of the die. By screwing the bolt inserted into the screw to adjust the plate up and down by the screw rotation of the bolt, while preventing the wear damage of the movable side template due to the rotational friction of the outer cylinder and the movable side template as in the conventional rotation of the bolt Of course, it relates to a prefabricated tool for the adjustment of the plate of the injection mold that effectively provides the adjustment of the upper and lower plates.

In general, injection molding is a method of molding a molded article by heating and melting a thermoplastic or thermosetting plastic molding material in an injection molding machine, and then pressing and injecting the same into a cavity of an injection mold, and solidifying or curing the molding.

As such, the molded article molded in the cavity of the injection mold is separated and extracted from the cavity by the eject pin while the upper and lower plates move forward after opening the mold of the injection mold.

In such an injection mold, a work of adjusting the upper and lower plates forcibly to be raised is carried out for work such as mold repair, wherein the upper and lower plates are forcibly adjusted upward by a tool assembled to the injection mold.

As shown in FIG. 1, the conventional tool 200 is inserted into a bolt 230 in which a nut 220 is screwed upward in a bolt hole 215 inside a cylindrical cylinder 210.

As shown in FIG. 2, the tool 200 is positioned at a position where the support rod 125 supporting the upper and lower mill plates 121 and 122 is inserted into the upper side of the movable mold 110 of the injection mold 100. By screwing the bolt 230 of the tool tool to the support rod 125, the upper and lower mill plates 121 and 122 are compressed and adjusted upward by compressing the mill retracting spring 123 by the rotation of the bolt.

However, since the lower surface of the cylindrical cylinder 210 is in close contact with the movable side template 110 of the injection mold during the screwing process by the rotation of the bolt 230, the rotational friction between the cylindrical cylinder and the movable side template There was a problem that causes wear damage to the movable side template.

In addition, the screw coupling process by the rotation of the bolt 230 is not smooth due to the rotational friction of the cylindrical cylinder and the movable side template, there is also a problem that the rise adjustment workability of the upper and lower plates.

The present invention is designed to solve the above-mentioned problems of the prior art, by screwing the bolt inserted into the center of the outer cylinder to the support rod for supporting the upper and lower mill plates from the upper side of the mold on the movable side of the mold by the screw rotation of the bolt While adjusting the upward, it is an object to prevent the wear damage of the movable side template due to the rotational friction of the outer cylinder and the movable side template as in the prior art, as well as to provide an effective adjustment of the upper and lower plates.

The present invention is a prefabricated tool for screwing up and down the upper and lower mills by compressing the plate retracting spring to the upper and lower mills by screwing a bolt to the support rod for supporting the upper and lower mills on the upper side of the movable mold of the injection mold, An outer cylinder having; An inner coupling body forming a screw portion for screwing into a screw hole of an outer cylinder at a lower portion thereof, and a bolt insertion hole penetrating up and down in the center and a seating groove having a diameter larger than that of the bolt insertion hole in the upper portion of the bolt insertion hole; Rotating bushing coupled to the seat groove of the inner coupling body by a rolling rolling bearing to form a bolt insertion hole penetrated up and down in the center; mutually configured to be inserted into the bolt insertion hole of the rotary bushing and the inner coupling body When rotating the bolt of the bolt screwed to the support rod for supporting the upper and lower plates is characterized in that the rotating bushing to which the head of the bolt is seated to offset the rotating friction while rolling.

The inner coupling body is characterized by adjusting the elevating stroke of the upper and lower mills by adjusting the elevating stroke of the support bar supported on the upper and lower mills according to the elevating height adjustment screwed to the screw hole of the outer cylinder.

The present invention is to screw the inner coupling body in the outer cylinder and insert the bolt into the bolt insertion hole in the center of the inner coupling body, when the screw of the bolt by the rotary bushing rolling rolling by the bearing on the upper bolt insertion hole Since the rotating bushing cancels the rotational friction force while rolling the bolt, it prevents abrasion damage of the movable side template due to the rotational friction of the external cylinder and the movable side template during the rotational operation of the bolt as well as effectively providing the adjustment work of the mill plate. It has an effect.

1 is a cross-sectional view showing a conventional prefabricated tool.
2 is an installation use state diagram of FIG.
Figure 3 is a perspective view showing a prefabricated tool of the present invention.
4 is an exploded cross-sectional view of FIG. 3.
5 is an installation use state diagram of FIG.
Figure 6 is an excerpt excerpt showing the inner engagement body lifting control operation of Figure 5;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention is screwed to the support rod (125) for supporting the upper and lower mill plates (121, 122) in the upper side of the movable mold (110) of the injection mold 100 by the rotation of the bolt upper and lower mill plates (121, 122) ) Is a prefabricated jig for adjusting the pressure of the retraction spring 123.

That is, the prefabricated tool 2 of the present invention has an outer cylinder 10 having a screw hole 11 therein, as shown in FIGS.

A threaded portion 21 is formed at the bottom to screw the screw hole of the outer cylinder, and a bolt insertion hole 22 penetrated up and down in the center and a seating groove 23 having a larger diameter than the bolt insertion hole in the upper portion of the bolt insertion hole. Internal coupling body 20 to form a),

The rotary bushing 30 is coupled to the seating groove 23 of the inner coupling body by rolling bearings 31 to form a bolt insertion hole 32 vertically penetrated up and down in the center, and the rotation The head of the bolt at the time of screw rotation of the bolt 40 inserted into the bushing 30 and the bolt insertion holes 32 and 22 of the inner coupling body 20 and screwed to the support rod 125 supporting the upper and lower mill plates. The rotating bushing (30) is seated is made to cancel the rotational friction force while rolling.

At this time, the inner coupling body 20 adjusts the lifting stroke of the support rod 125 is supported on the upper and lower mills in accordance with the adjustment of the lifting height screwed to the screw hole of the outer cylinder 10, the raising and lowering height of the upper and lower mills It is configured to adjust.

That is, the lifting stroke of the upper end of the support rod 125 is supported on the lower surface of the inner coupling body according to the adjustment of the raising and lowering height of the inner coupling body 20, the inner coupling body 20 to the upper When positioned, the lifting stroke of the support rod 125 is formed long, and when the inner coupling body 20 is located below, the lifting stroke of the support rod 125 is shortened.

In particular, the length of the threaded portion 21 of the inner coupling body 20 is formed to be similar to the upper and lower lengths of the outer cylinder 10 so that the inner coupling body 20 protrudes to the upper portion of the outer cylinder 10. It is configured to raise and lower the upper and lower plates.

In addition, the upper portion of the inner coupling body 20 is configured by forming a polygonal body portion 25 for the screw rotation operation on the outside.

Reference numeral 126 denotes a threaded hole of the support bar 125.

Next will be a look at the operation and action of the subject innovation configured as described above.

First, in the case of forcibly adjusting the upper and lower mills for work such as mold repair, the support rod 125 supporting the upper and lower mills 121 and 122 is inserted in the upper part of the injection mold 100. Place the tool (2).

That is, the bolt 40 is screwed into the inner coupling body 20 screwed onto the outer cylinder 10 and the bolt insertion holes 22 and 32 of the rotary bushing 30 coupled to the upper center of the inner coupling body. The bolt 40 is positioned at the position of the screw hole 126 of the support rod 125 on the movable side template 110 of the injection mold 100.

In this state, the bolt 40 is rotated and screwed into the screw hole 126 of the support rod 125 supporting the upper and lower mill plates 121 and 122 to the bolt.

As the bolt 40 and the support rod 125 are screwed in this way, the head 42 of the bolt is in close contact with the upper portion of the rotary bushing 30, and the outer cylinder 10 moves on the injection mold. The template 110 is in close contact with the upper portion.

In this state, the support rod 125 is upwardly adjusted by compressing the retracting spring 123 to the upper and lower mill plates 121 and 122 by the continuous screw rotation of the bolt 40.

At this time, the head 42 of the bolt 40 is rotated in close contact with the upper portion of the rotary bushing 30, while the rotary bushing 30 is rotated by the bearing 31 to rotate the frictional force of the bolt to the outer cylinder 10 Will be delivered without

That is, the external cylinder 10 does not rotate in close contact with the movable side template 110 of the injection mold by screw rotation of the bolt 40, but the rotational frictional force due to the screw rotation of the bolt 40. The outer cylinder 10 is held in close contact with the movable side template 110 of the injection mold by offsetting by the rolling rotation of the rotary bushing 30, thereby preventing abrasion damage due to the rotational friction of the movable side template. Will be prevented.

In addition, since the friction friction due to the screw rotation of the bolt 40 is offset by the rolling rotation of the rotary bushing 30, the adjustment work of the upper and lower plates by the screw rotation of the bolt is effectively provided.

In addition, the present invention is to adjust the raising and lowering stroke of the upper and lower mill plate according to the raising and lowering height of the inner coupling body 20 is screwed to the screw hole 11 of the upper outer cylinder (10).

That is, when the inner coupling body 20 is positioned upward from the upper portion of the outer cylinder 10, the lifting stroke of the support rod 125 that can be lifted to the lower surface of the inner coupling body 20 is long, and vice versa. When the coupling body 20 is positioned at the bottom, the lifting stroke of the support rod 125 that can be lifted to the lower surface of the inner coupling body 20 is shortly formed to adjust the lifting height of the upper and lower mills 121 and 122. Will be.

Furthermore, since the upper and lower lengths of the threaded portion 21 and the outer cylinder 10 of the inner coupling body 20 are formed in the same manner, the inner coupling body 20 is protruded to the upper portion of the outer cylinder 10. In proportion to the up and down wheat plate 121, 122 is able to adjust the stroke to move up and down.

10: outer cylinder 11: screwdriver
20: internal coupling body 21: threaded portion
22, 32: bolt insertion hole 23: seating groove
30: rotary bushing 31: bearing
40: bolt 42: tofu
25: polygonal body portion 100: injection mold

Claims (2)

In the prefabricated tool for adjusting the plate of the injection mold, which is screwed to a support rod for supporting the upper and lower mill plates at the upper side of the movable mold of the injection mold, the upper and lower mills are compressed by upward and downward compression of the mill retracting spring by the rotation of the bolt.
An outer cylinder 10 having a screw hole 11 therein,
A threaded portion 21 is formed at the bottom to screw the screw hole of the outer cylinder, and a bolt insertion hole 22 penetrated up and down in the center and a seating groove 23 having a larger diameter than the bolt insertion hole in the upper portion of the bolt insertion hole. Internal coupling body 20 to form a),
The rotary bushing 30 is coupled to the seating groove 23 of the inner coupling body by rolling bearings 31 to form a bolt insertion hole 32 vertically penetrated up and down in the center, and the rotation The head of the bolt 42 is seated when the bolt 40 is inserted into the bushing 30 and the bolt insertion holes 32 and 22 of the inner coupling body 20 and screwed to the support rod for supporting the upper and lower mill plates. Prefabricated tool for adjusting the tight plate of the injection mold, characterized in that the rotating bushing 30 is made to offset the rotational friction while rolling rolling. The method of claim 1,
The inner coupling body 20 adjusts the raising and lowering height of the upper and lower mills by adjusting the raising and lowering strokes of the support rods 125 supported on the upper and lower mills according to the raising and lowering heights that are screwed to the screw holes of the outer cylinder 10. Prefabricated tool for adjusting the tight plate of the injection mold, characterized in that made to.
KR2020110011630U 2011-12-28 2011-12-28 Tool for adjusting ejector plate of injection mold KR200467195Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2020110011630U KR200467195Y1 (en) 2011-12-28 2011-12-28 Tool for adjusting ejector plate of injection mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2020110011630U KR200467195Y1 (en) 2011-12-28 2011-12-28 Tool for adjusting ejector plate of injection mold

Publications (1)

Publication Number Publication Date
KR200467195Y1 true KR200467195Y1 (en) 2013-05-30

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KR2020110011630U KR200467195Y1 (en) 2011-12-28 2011-12-28 Tool for adjusting ejector plate of injection mold

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101955311B1 (en) 2018-08-20 2019-03-08 이익주 Injection mold having multi-stage driving plate device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006502360A (en) 2002-10-07 2006-01-19 ザ ゲイツ コーポレイション Tolerance correction mounting device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006502360A (en) 2002-10-07 2006-01-19 ザ ゲイツ コーポレイション Tolerance correction mounting device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101955311B1 (en) 2018-08-20 2019-03-08 이익주 Injection mold having multi-stage driving plate device

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