KR102433829B1 - Mold for making parts with adjustable size - Google Patents

Abstract

The present invention relates to a mold for manufacturing parts that can be adjusted in size. According to the present invention, in a mold including an upper mold and a lower mold, the upper mold and the lower mold form the main shape of the part to be manufactured, a first part and a second part to be; It is possible to provide a mold for manufacturing a size adjustable part including a core positioned between the first and second parts to change the size or shape of the part to be manufactured.

Description

Mold for making parts with adjustable size}

The present invention relates to a mold for manufacturing parts that can be adjusted in size, and more specifically, to a mold for manufacturing parts that can be adjusted in size to produce various parts having the same shape but different sizes by controlling the size of the mold through the core. it's about

The seat back frame and cushion frame may be manufactured by molding through a mold.

On the other hand, since aircraft seats have different seat widths depending on the seat class, when manufacturing the seat back frame and cushion frame through mold manufacturing, it is necessary to manufacture a mold for each seat class, i.e., the desired seat width, one by one. There was trouble, and there was a disadvantage in that the products that can be manufactured are limited.

Therefore, it is necessary to develop a mold capable of manufacturing various parts (products) because the size of width and height can be adjusted.

As a prior art, Korean Patent Registration No. 10-1218912 (Mold for Injection Molding and Manufacturing Method of Composite Product) has been disclosed.

In order to solve the above problems, an object of the present invention is to provide a mold for manufacturing parts capable of size adjustment capable of producing various parts having the same shape but different sizes by controlling the size of the mold through the core.

In order to solve the above problems, the mold for manufacturing the size adjustable parts according to the first embodiment of the present invention is a mold including an upper mold and a lower mold, wherein the upper mold and the lower mold are the parts to be manufactured. Doedoe forming a main shape, the first part and the second part being separated; It is possible to provide a mold for manufacturing a size adjustable part including a core positioned between the first and second parts to change the size or shape of the part to be manufactured.

Here, the upper mold and the lower mold may further include a base plate to which the first part, the second part, and the core are coupled and fixed.

In addition, the first part and the second part include a first part coupling hole and a second part coupling hole into which a coupling member can be inserted so as to be coupled with the base plate, respectively, and the base plate includes the first part, It may include a plurality of base coupling holes formed so that the second part and the core can be coupled by a coupling member, respectively.

In addition, at least one of the first part coupling hole and the second part coupling hole is characterized in that it is formed in a long hole shape having a length in a direction in which the size is adjusted by the core.

In addition, it includes a fastening protrusion formed to protrude one of the upper mold and the lower mold, and the other one is formed to protrude and includes a fastening member having a fastening groove formed so that the fastening protrusion can be inserted, the upper mold and the lower mold It is characterized in that the mold can be coupled to each other.

In addition, the base plate of the upper mold and the lower mold of the mold for manufacturing parts capable of size adjustment according to the second embodiment of the present invention includes a close contact protrusion formed to protrude with a length at both ends, respectively, and the first part And the second part may include a close contact fixing portion respectively formed at opposite ends of which the size is controlled by the core and fitted between the close contact protrusions to be fixed in close contact with each other.

In addition, the close contact protrusion includes a vertical contact portion protruding vertically having a length at both ends, and a binding portion having a length and protruding vertically to the outside of the close contact vertical portion, wherein the close contact fixing portion is the first part or the second part a first bent portion having a length at both ends of each and extending upwardly to be bent, and closely supported by the vertical portion in close contact with each other; Doedoe having a length and extending from the first bent portion, the second bent portion that is formed to be bent downward and can be fitted into the close contact vertical portion and the second bent portion is rotatably formed on one side of the second bent portion, and a ring portion that is fastened to the binding portion may include

In addition, the first part and the second part of the upper mold and the lower mold of the mold for manufacturing parts capable of size adjustment according to the third embodiment of the present invention are respectively formed on one side of both ends in the opposite direction in which the size is adjusted by the core and a moving fixing unit to be used, and the base plate may include a moving guide unit formed at both ends so that the moving fixing unit is moved in a direction in which the size is adjusted by the core and the position is fixed.

In addition, the movable fixing portion includes a movable portion respectively formed on one side of both ends of the opposite direction whose size is controlled by the core, and a fixing bar formed to be able to be drawn in and out of the movable portion, and the movement guide portion includes both sides of the base plate. a vertical plate formed perpendicular to the end; Two are formed symmetrically on the vertical plate, and are formed to have a length in a direction in which the size is adjusted by the core, so that the moving part can move along the length. A plurality of holes are formed along the hole to include a movable fixing hole into which the fixing bar can be selectively inserted.

The mold for manufacturing a size-controllable part according to an embodiment of the present invention as described above allows the size of the mold to be adjusted through the core, so that various parts having the same shape but different sizes can be produced.

Accordingly, it is applied to sheet production that has the same shape but can vary in width, length, height, etc. depending on grade, installation space, etc., thereby further improving productivity, workability, etc., and reducing mold manufacturing cost.

In addition, it can be widely applied to the manufacture of various products.

1 is a perspective view showing a mold for manufacturing a size adjustable part according to a first embodiment of the present invention.
2 (a) and (b) are a perspective view showing a rotational perspective view and a lower mold showing the upper mold of the mold for manufacturing the size adjustable parts according to the first embodiment of the present invention.
Figure 3 is an exploded perspective view showing the lower mold of Figure 2 separated.
4 (a) and (b) are exemplary views showing a state in which the size (width) of the lower mold of the mold for manufacturing the size adjustable parts according to the first embodiment of the present invention is adjusted by the core.
Figure 5 is a perspective view showing a mold for manufacturing a size adjustable parts according to a second embodiment of the present invention.
Figure 6 is a perspective view showing a lower mold of the mold for manufacturing a size adjustable parts according to a second embodiment of the present invention.
Figure 7 is an exploded perspective view showing the lower mold of Figure 6 separated.
Figure 8 is a side view showing the lower mold of Figure 6 cut.
9 (a) and (b) are exemplary views illustrating a state in which the size (width) of the lower mold of the mold for manufacturing parts capable of size adjustment according to the second embodiment of the present invention is adjusted by the core.
10 is a perspective view illustrating a mold for manufacturing a size adjustable part according to a third embodiment of the present invention.
11 is a perspective view illustrating a lower mold of a mold for manufacturing parts capable of size adjustment according to a third embodiment of the present invention.
Figure 12 is an exploded perspective view showing the lower mold of Figure 10 separated.
13 (a) to (c) are exemplary views illustrating the operation of the movable fixing unit of FIG. 12 in an enlarged manner.
14 (a) and (b) are exemplary views illustrating a state in which the size (width) of the lower mold of the mold for manufacturing the size adjustable parts according to the third embodiment of the present invention is adjusted by the core.

Hereinafter, the description of the present invention with reference to the drawings is not limited to specific embodiments, and various modifications may be made and various embodiments may be provided. In addition, it should be understood that the content described below includes all transformations, equivalents, and substitutes included in the spirit and scope of the present invention.

In the following description, terms such as 1st, 2nd, etc. are terms used to describe various components, meanings are not limited thereto, and are used only for the purpose of distinguishing one component from other components.

Like reference numbers used throughout this specification refer to like elements.

As used herein, the singular expression includes the plural expression unless the context clearly dictates otherwise. In addition, terms such as "comprises", "comprises" or "have" described below are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist. It should be construed as not precluding the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

In addition, in the description with reference to the accompanying drawings, the same components are assigned the same reference numerals regardless of the reference numerals, and the overlapping description thereof will be omitted. In describing the present invention, if it is determined that a detailed description of a related known technology may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings 1 to 14.

1 is a perspective view showing a mold for manufacturing parts capable of size adjustment according to a first embodiment of the present invention, and FIGS. 2 (a) and (b) are size adjustable according to a first embodiment of the present invention It is a perspective view showing the upper mold of the mold for manufacturing parts and a perspective view showing the lower mold, FIG. 3 is an exploded perspective view showing the lower mold of FIG. It is an exemplary view showing a state in which the size (width) of the lower mold of the mold for manufacturing parts capable of size adjustment according to the first embodiment of the present invention is adjusted by the core.

The mold for manufacturing a size adjustable part according to the first embodiment of the present invention (hereinafter referred to as 'a mold for manufacturing a part') has the core (12, 22) so that various parts having the same shape but different sizes can be manufactured with a single mold. ), the size of the mold width, length, height, etc. can be changed. In addition to this, it is also possible to diversify the shapes of the cores 12 and 22 to manufacture products having different shapes through a single mold.

1 to 3 , a mold for manufacturing a part consists of an upper mold 1 and a lower mold 2, and the upper mold 1 and the lower mold 2 are first parts 10 and 20, respectively. , second parts 11 and 21 , cores 12 and 22 and base plates 13 and 23 may be included. That is, the upper mold 1 and the lower mold 2 may have different shapes, but may have the same configuration.

The first parts 10 and 20 and the second parts 11 and 21 may form a main shape of a part to be manufactured, but may be formed to be separated from each other. In this case, the first parts 10 and 20 and the second parts 11 and 21 may be formed symmetrically, but the present invention is not limited thereto, and the shape may be variously formed according to the shape of the part to be manufactured.

Also, the first parts 10 and 20 and the second parts 11 and 21 may be formed to be separated based on the center of the direction in which the size is to be changed according to the shape characteristics of the parts to be manufactured.

For example, it may be formed to be separated based on a center in a width direction, a center in a length direction, a center in a height direction, etc., but is not limited thereto, and may be formed to be separated according to a position of a portion whose size is to be changed.

In the drawings, since the first parts 10 and 20 and the second parts 11 and 21 are separated with respect to the center in the width direction, description will be made based on the center in the width direction. However, the present invention is not limited thereto.

In addition, the first parts 10 and 20 and the second parts 11 and 21 are a plurality of first part coupling holes 100 and 200, respectively, so that they can be coupled to the base plates 13 and 23 by coupling members such as pins and bolts. ), and may include second part coupling holes 110 and 210 .

At this time, since the position of at least one of the first parts 10 and 20 and the second parts 11 and 21 must be adjusted in the width direction in the base plates 13 and 23 according to the cores 12 and 22, the second One or more of the one-part coupling holes 100 and 200 and the second part coupling holes 110 and 210 may be formed in a long hole shape having a length in a direction in which the size is adjusted by the cores 12 and 22 .

For example, when the length is adjusted by the cores 12 and 22 as shown in the drawings, at least one of the first part coupling holes 100 and 200 and the second part coupling holes 110 and 210 is formed in a long hole shape. However, it may be formed to have a length in the left and right directions.

In addition, the first parts 10 and 20 and the second parts 11 and 21 have fastening protrusions 101 and 111 or fastening members ( 201,211) may be included.

More specifically, the first parts 10 and 20 and the second parts 11 and 21 of one of the upper mold and the lower mold include the fastening protrusions 101 and 111 , and the other first parts 10 and 20 of the lower mold include the fastening protrusions 101 and 111 . and the second parts 11 and 21 may include fastening members 201 and 211 .

For example, when the fastening protrusions 101 and 111 are formed on the first part 10 and the second part 11 of the upper mold 1 , the first part 20 and the second part ( 21), the fastening members 201 and 211 may be formed, and vice versa.

The fastening protrusions 101 and 111 may be formed to protrude vertically from the first parts 10 and 20 and the second parts 11 and 21 , and the fastening members 201 and 211 may be formed to protrude vertically to the fastening protrusions 101 and 111 . It may include a fastening groove into which can be inserted.

The upper mold 1 and the lower mold 2 may be fastened in this way, but the present invention is not limited thereto.

The cores 12 and 22 may be positioned between the first parts 10 and 20 and the second parts 11 and 21 to change the size or shape of a part to be manufactured. That is, it is positioned between the first parts 10 and 20 and the second parts 11 and 21 and the size or shape of the main shape of the parts formed by the first parts 10 and 20 and the second parts 11 and 21 . is to change

A plurality of cores 12 and 22 may be provided, and may be formed to have different sizes (one of width, length, and height) or shapes. Accordingly, the size of the manufactured part can be changed by adjusting the size of the mold according to whether the cores 12 and 22 are installed or not and the size of the cores 12 and 22 .

For example, as shown in FIG. 4, a mold can be formed using the core 22 between the first part 20 and the second part 21, but the core 22 used is different and the second part is used. By changing the position of the 2 parts 21, the magnitude|size of the width|variety can be increased.

In addition, the cores 12 and 22 may include a plurality of core coupling holes 120 and 220 to be coupled to the base plates 13 and 23 through coupling members such as pins and bolts, but is not limited thereto. Depending on the coupling method, the protrusion may be formed in various ways.

The base plates 13 and 23 may be fixed by coupling the first parts 10 and 20, the second parts 11 and 21 and the cores 12 and 22, but may be formed in the form of a plate. not limited

In addition, the base plates 13 and 23 may include a plurality of base coupling holes 130 and 230 so that the first parts 10 and 20, the second parts 11 and 21 and the cores 12 and 22 can be coupled. However, the present invention is not limited thereto.

5 is a perspective view showing a mold for manufacturing parts that can be adjusted in size according to a second embodiment of the present invention, and FIG. 6 is a lower mold of a mold for manufacturing parts that can be adjusted in size according to a second embodiment of the present invention. It is a perspective view showing, FIG. 7 is an exploded perspective view showing the lower mold of FIG. 6 separated, FIG. 8 is a side view showing the lower mold of FIG. 6 by cutting it, and FIGS. It is an exemplary view showing a state in which the size (width) of the lower mold of the mold for manufacturing parts capable of size adjustment according to the second embodiment of the present invention is adjusted by the core.

5 to 8 , the first parts 10 and 20 and the second part of the upper mold 1 and the lower mold 2 of the mold for manufacturing parts capable of size adjustment according to the second embodiment of the present invention. The parts 11 and 21 include close contact fixing parts 102, 112, 202, 212 instead of the first part coupling holes 100 and 200 and the second part coupling holes 110 and 210, and the base plates 13 and 23 are close contact protrusions 131,231. may include.

Here, except for the close contact fixing parts 102, 112, 202, 212 and the close contact protrusion 231, the mold for manufacturing parts according to the second embodiment of the present invention is substantially the same as the mold for manufacturing parts according to the first embodiment described above. can do.

Accordingly, only the close contact fixing portions 102 , 112 , 202 , 212 and the close contact protruding portions 131,231 will be described. In addition, since the close contact fixing parts 102, 112, 202, 212 and the close contact protrusion 131,231 of the upper mold 1 and the lower mold 2 are substantially the same, description will be made based on the lower mold 2 .

The close contact portions 202 and 212 may be respectively formed at opposite ends of which sizes are adjusted by the core 22 of the first part 20 and the second part 21, and when the width is adjusted, at both front and rear ends. Each may be formed, but is not limited thereto.

The close contact fixing parts 202 and 212 may allow the first part 20 or the second part 21 to be inserted between the close contact protrusions 231 of the base plate 23 to be closely fixed.

More specifically, the adhesion fixing portions 202 and 212 may include first curved portions 202a and 212a, second curved portions 202b and 212b and ring portions 202c and 212c.

The first curved portions 202a and 212a may have lengths at both front and rear ends of the first part 20 and the second part 21 , respectively, and may be formed to extend upwardly to be curved. Accordingly, when the first part 20 and the second part 21 are fitted between the close contact protrusions 231, respectively, they are closely supported by the close contact vertical portions 231a of the close contact protrusions 231, and the first part 20 and the second Two parts 21 can be fixed.

The second curved portions 202b and 212b may extend from the first curved portions 202a and 212a, and may be bent downward to fit into the close contact vertical portion 231a. Accordingly, the fixing force of the first part 20 and the second part 21 may be further improved.

The ring portions 202c and 212c may be rotatably formed on one side of the second bent portions 202b and 212b, and the center side of the first part 20 and the second part 21 . These ring portions (202c, 212c) are formed to be curved and may be coupled to the coupling portion (231b) during rotation, but is not limited thereto.

In addition, an elastic spring is provided on the shaft to which the ring portions 202c and 212c are rotatably connected, so that it can have a stronger fixing force.

With this configuration, the first part 20 and the second part 21 may be more firmly fixed to the base plate 23 .

The close contact protrusion 231 may be formed to protrude with a length at both ends and front and rear ends of the base plate 23, and may include a close contact vertical portion 231a and a binding portion 231b.

The close contact vertical portion 231a has a length at both ends of the base plate 23 and may protrude vertically. In addition, the end may be formed to be convex, but is not limited thereto.

When the first part 20 and the second part 21 are combined, the second curved portions 202b and 212b of the close contact fixing parts 202 and 212 are fitted upwardly to the first part 231a. By fixing the 20 and the second part 21 as well as closely supporting the first bent portions 202a and 212a, the first part 20 and the second part 21 can be more firmly fixed. have.

The binding portion 231b may have a length to the outside of the close contact vertical portion 231a and may protrude vertically. In addition, the end may be formed to be convex, but is not limited thereto.

The ring parts 202c and 212c may be coupled to the coupling part 231b, so that the first part 20 and the second part 21 may be more firmly fixed.

As shown in FIG. 9 , with this configuration, the positions of the first part 20 and the second part 21 may be more easily adjusted in the width direction along the core 22 and may be fixed.

10 is a perspective view showing a mold for manufacturing parts capable of size adjustment according to a third embodiment of the present invention, and FIG. 11 is a lower mold of a mold for manufacturing parts capable of size adjustment according to a third embodiment of the present invention. It is a perspective view showing, FIG. 12 is an exploded perspective view showing the lower mold of FIG. 10 separated, and FIGS. 13 (a) to (c) are exemplary views showing the operation of the movable fixing part of FIG. , Figure 14 (a) and (b) is an exemplary view showing a state in which the size (width) of the lower mold of the mold for manufacturing the size adjustable parts according to the third embodiment of the present invention is adjusted by the core .

10 to 12 , the first parts 10 and 20 and the second part of the upper mold 1 and the lower mold 2 of the mold for manufacturing parts capable of size adjustment according to the third embodiment of the present invention. The parts 11 and 21 include movable fixing parts 103, 113, 203 and 213 in place of the first part coupling holes 100 and 200 and the second part coupling holes 110 and 210, and the base plates 13 and 23 are movable guide parts 132 and 232. ) may be included.

Here, except for the moving fixing parts 103, 113, 203, 213 and the moving guide parts 132 and 232, the mold for manufacturing parts according to the third embodiment of the present invention is substantially the same as the mold for manufacturing parts according to the first embodiment described above. it can be said that

Accordingly, only the moving fixing units 103, 113, 203, and 213 and the moving guide units 132 and 232 will be described. In addition, since the moving fixing parts 103, 113, 203, 213 and the moving guide parts 132 and 232 of the upper mold 1 and the lower mold 2 are substantially the same, description will be made based on the lower mold 2 .

The movable fixing parts 203 and 213 may be respectively formed on one side of both ends of the first part 20 and the second part 21 in the opposite direction whose size is adjusted by the core 22 , and the width is determined by the core 22 . As this is adjusted, each of the front and rear ends may be formed on one side, but the present invention is not limited thereto.

The movable fixing parts 203 and 213 may be moved in the width direction while being inserted into the movement guide part 232 as the positions of the first part 20 and the second part 21 are adjusted.

In addition, the movable fixing parts 203 and 213 may include a movable part 203a and a fixing bar 203b.

The moving part 203a may be formed on one side of both front and rear ends of the first part 20 and the second part 21, respectively, and may include a moving shaft and a separation preventing plate.

The moving shaft is formed in a bar shape and may be respectively connected to one side of both front and rear ends of the first part 20 and the second part 21 . This moving shaft may be inserted into the movement guide hole 232b of the movement guide part 232 to move along the movement guide hole 232b.

The separation preventing plate may be formed at the end of the moving shaft to prevent the moving shaft from being separated from the moving guide hole 232b.

The fixed bar 203b may be formed to be able to be drawn in and out of the moving part 203a.

Referring to Figure 13, the fixed bar (203b) is formed in a straight bar shape and is formed in a straight bar and 'L' shape that is installed to be in and out of the moving part 203a, and is rotatably connected to the straight bar. , may include a bending bar that can be inserted into the movement fixing hole 232c of the movement guide portion 232 according to the rotation.

The movement guide part 232 is formed at both front and rear ends of the base plate 23 , so that the movable fixing parts 203 and 213 are moved in a direction in which the size is adjusted by the core 22 and their position is fixed.

More specifically, the movement guide unit 232 may include a vertical plate 232a, a movement guide hole 232b, and a movement fixing hole 232c.

The vertical plate 232a may be formed to be perpendicular to both ends of the front and rear ends of the base plate 23 , but is not limited thereto, and the position may be variously changed according to the direction in which the size is adjusted by the core 22 .

Two movement guide holes 232b are formed symmetrically to the vertical plate 232a, and may be formed to have a length in the left and right directions. However, the present invention is not limited thereto, and the number and length direction may be different depending on the number of moving parts and the direction in which the size is adjusted by the core 22 .

The movement guide hole 232b may allow the movement unit 203a to be inserted to move along its length. Accordingly, the first part 20 and the second part 21 can easily move from the upper side of the base plate 23 .

A plurality of moving fixing holes 232c may be formed along the length of the moving guide hole 232b under the moving guide hole 232b in the vertical plate 232a. In this case, it is preferable to be formed to be spaced apart from each other at regular intervals, but the present invention is not limited thereto.

Accordingly, after the first part 20 and the second part 21 are moved, the fixing bar 203b of the movable part 203a is inserted into the movable fixing hole 232c, and the first part 20 and the second part 20 are moved. The part 21 can be fixed.

As shown in FIG. 14 , as the width of the core 22 increases, the first part 20 and the second part 21 are respectively moved through the moving unit 203a, and then the moving guide unit 232 . It can be fixed by inserting the fixing bar 203b of the movable fixing part 203 into the movable fixing hole 232c of the .

As described above, the positions of the first part 20 and the second part 21 can be easily changed according to the core 22 and can be fixed.

As described above, in the mold for manufacturing a size-adjustable part according to an embodiment of the present invention, since the size of the mold can be adjusted through the core, various parts having the same shape but different sizes can be produced.

Accordingly, it is applied to sheet production that has the same shape but can vary in width, length, height, etc. depending on grade, installation space, etc., thereby further improving productivity, workability, etc., and reducing mold manufacturing cost.

In addition, it can be widely applied to the manufacture of various products.

In the above description, the mold for manufacturing the size-adjustable part according to the embodiment of the present invention has been described by dividing it into first to third embodiments. It is not limited to the example, and the configuration of the embodiment may be applied to each other by changing the design.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improved forms of the present invention are also provided by those skilled in the art using the basic concept of the present invention as defined in the following claims. is within the scope of the right.

1: upper mold
10: Part 1
100: first part coupling hole
101: fastening protrusion
102: close-fitting part
103: moving fixed part
11: Part 2
110: second part coupling hole
111: fastening protrusion
112: adhesion fixing part
113: moving fixed part
12: core
120: core coupling hole
13: base plate
130: base plate coupling hole
131: close contact protrusion
132: movement guide unit
2: lower mold
20: first part
200: first part coupling hole
201: fastening member
202: adhesion fixing part
202a: first bent portion
202b: second bent portion
202c: ring part
203: moving fixed part
203a: moving unit
203b: fixed bar
21: Part 2
210: second part coupling hole
211: fastening member
212: adhesion fixing part
212a: first bent portion
212b: second bent portion
212c: ring part
213: movable and fixed part
22: core
220: core coupling hole
23: base plate
230: base coupling hole
231: close contact protrusion
231a: close contact vertical part
231b: binding part
232: movement guide unit
232a: vertical plate
232b: movement guide hole
232c: moving fixing hole

Claims (9)

In a mold comprising an upper mold and a lower mold,
The upper mold and the lower mold are
Doedoe forming the main shape of the part to be manufactured, the first part and the second part being separated;
a core positioned between the first and second parts and capable of changing the size or shape of a manufactured part; and
and a base plate to which the first part, the second part and the core are coupled and fixed,
The first part and the second part are
A first part coupling hole and a second part coupling hole into which a coupling member can be inserted so as to be coupled with the base plate, respectively,
The base plate is
and a plurality of base coupling holes formed so that the first part, the second part and the core can be coupled by a coupling member, respectively,
At least one of the first part coupling hole and the second part coupling hole,
A mold for manufacturing a size adjustable part, characterized in that it is formed in a long hole shape having a length in a direction in which the size is adjusted by the core.
delete delete delete According to claim 1,
Including a fastening protrusion formed to protrude one of the upper mold and the lower mold, and a fastening member having a fastening groove formed so that the other one is formed to protrude so that the fastening protrusion can be inserted,
A mold for manufacturing a size adjustable part, characterized in that the upper mold and the lower mold can be combined with each other.
In a mold comprising an upper mold and a lower mold,
The upper mold and the lower mold are
Doedoe forming the main shape of the part to be manufactured, the first part and the second part being separated;
a core positioned between the first and second parts and capable of changing the size or shape of a manufactured part; and
and a base plate to which the first part, the second part and the core are coupled and fixed,
The base plate is
It includes a close contact protrusion formed to protrude at both ends each having a length,
The first part and the second part are
and a close contact fixing part which is respectively formed at both ends of the opposite direction whose size is controlled by the core and is fitted between the close contact protrusions and fixed in close contact,
The close contact protrusion,
A close-fitting vertical part that has a length at both ends and protrudes vertically, and
It includes a binding part that has a length to the outside of the close contact vertical part and protrudes vertically,
The close-fitting part,
a first bent portion having a length at both ends of the first part or the second part, respectively, extending upward to be bent, and being closely supported by the vertical portion in close contact when combined;
a second bent part that has a length and extends from the first bent part, is formed to be bent downward and can be fitted into the close contact vertical part;
A mold for manufacturing parts that is rotatably formed on one side of the second bent part, and includes a ring part that is fastened to the binding part.
delete According to claim 1,
The first part and the second part are
It includes movable fixing parts respectively formed on one side of both ends in the opposite direction to which the size is adjusted by the core,
The base plate is
A mold for producing size-adjustable parts comprising a movement guide portion formed at both ends, the movable fixing portion is moved in a direction in which the size is adjusted by the core and the position is fixed.
9. The method of claim 8,
The moving fixing unit,
Moving parts respectively formed on one side of both ends in the opposite direction, the size of which is controlled by the core, and
It includes a fixed bar formed to be able to draw in and out of the moving part,
The moving guide unit,
a vertical plate formed perpendicular to both ends of the base plate;
a movement guide hole formed symmetrically on the vertical plate to have a length in a direction in which the size is adjusted by the core to allow the moving part to move along the length;
A mold for manufacturing a size adjustable part including a movable fixing hole formed at a lower side of the movement guide hole along the movement guide hole and into which the fixing bar can be selectively inserted.

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