KR101915147B1 - Mold improved steam passage - Google Patents

Abstract

A mold apparatus according to the present invention includes: a stationary frame; A movable frame; A cavity mounting block which is detachably coupled to the stationary frame; A core mounting block detachably coupled to the moving frame; A cavity mold that is detachably coupled to cover an inner space opening of the cavity mounting block; A core mold coupled to the core mounting block in a detachable manner; A cavity steam supply pipe and a cavity steam recovery pipe for supplying and recovering steam to the internal space of the cavity mounting block; A cavity cooling water pipe for supplying and recovering cooling water to the internal space of the cavity mounting block; And a core cooling water pipe for supplying and recovering cooling water into the core mounting block.

Description

[0001] The present invention relates to a mold improved steam passage,

The present invention relates to a mold apparatus comprising a fixed frame having a cavity and a moving frame provided with a core. More particularly, the present invention relates to a mold apparatus in which a steam flow path is improved so as to reduce a supply amount of steam and a mounting position of a cavity mold and a core mold is changed To a mold apparatus.

Expandable polypropylene (hereinafter referred to as 'EPP') or expandable poly-styrene (hereinafter referred to as 'EPS') has a wide range of applications such as packaging containers and automobile bumpers.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a conventional foamed resin molding die apparatus will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view of a conventional foamed resin molded article mold apparatus.

1, a conventional foamed resin molding tool apparatus includes a cavity 3 and a core 4, a cavity 3 is provided on the fixed mold base 1 side, And the movable mold base 2 moves with respect to the stationary-side mold base 1. The movable-

The stationary-side mold base 1 includes a cavity plate 1a disposed around the cavity 3, a stationary-side backplate 1c disposed on the rear surface of the cavity plate 1a, a cavity plate 1a, Side frame 1b to which the edge of the plate 1c is fixed. A heating and cooling space 1d through which steam or cooling water passes is formed between the stationary side back plate 1c and the cavity plate 1a and an inlet 1e for injecting steam and cooling water individually is provided in the stationary frame 1b. ) Are installed. A feeder 1f and an ejector pin 1g are inserted into the fixed side back plate 1c and the cavity 3 and the feeder 1f injects a raw material of a foamable resin and the ejector pin 1g is molded The foamed resin molding is taken out.

The movable mold base 2 includes a core plate 2a disposed on the periphery of the core 4, a movable side back plate 2c disposed on the back side of the core plate 2a, a core plate 2a, And a moving side frame 2b to which the edges of the plate 2c are fixed, respectively. A heating and cooling space 2d through which steam or cooling water passes is formed between the moving side back plate 2c and the core plate 2a and an inlet 2e for injecting steam and cooling water separately is formed in the moving side frame 2b. ) Are installed.

The molding space 5 is formed between the cavity 3 and the core 4 when the movable mold base 2 moves to the stationary side mold base 1 side and the cavity 3 and the core 4 are in close contact with each other The foamed resin raw material supplied through the feeder 1f is injected to fill the molding space 5, and is then made into a single product through cooling and stripping processes.

In this case, the conventional foam molding apparatus is provided with an injection port 1e for injecting steam into the stationary frame 1b and an injection port 2e for injecting steam into the movable frame 2b. The apparatus and the flow path for steam injection are complicated and the amount of steam wasted in the steam injection process is increased to cause energy loss.

The conventional foamed resin molding die apparatus is largely manufactured so that one cavity 3 is mounted over the entirety of the stationary side mold base 1 and the core 4 is also mounted on the entire movable die base 2 However, when the size of the resin molding to be manufactured is small, steam is unnecessarily injected in a large amount, which causes energy loss. The cavities 3 and the entire core 4 need to be replaced even if only some of the cavities 3 and the cores 4 are damaged. Since only one type of the core 3 and the core 4 can be mounted, only one type of resin molding can be manufactured at a time.

KR 10-1169678 B1

The present invention has been made in order to solve the above-mentioned problems. It is an object of the present invention to provide a method of manufacturing a cavity mold capable of reducing steam supply and simplifying a steam supply structure, It is an object of the present invention to provide a mold apparatus capable of changing the mounting position of a core mold and having excellent usability.

According to an aspect of the present invention, there is provided a mold apparatus comprising: a stationary frame; A movable frame movable toward or away from the fixed frame; A cavity mounting block having an inner space opened to a side facing the moving frame, the cavity mounting block being detachably coupled to the stationary frame; A core mounting block detachably coupled to the moving frame; A cavity mold that is detachably coupled to cover an inner space opening of the cavity mounting block; A core mold coupled to the core mounting block in a detachable manner; A cavity steam supply pipe and a cavity steam recovery pipe for supplying and recovering steam to the internal space of the cavity mounting block; A cavity cooling water pipe for supplying and recovering cooling water to the internal space of the cavity mounting block; And a core cooling water pipe for supplying and recovering cooling water to the inside of the core mounting block, wherein when the cavity mounting block and the core mounting block are in close contact with each other, A cavity internal flow path is formed in the cavity mounting block and a core internal flow path communicating with the cavity internal flow path is formed in the core mounting block.

At least two cavity mounting blocks are mounted in a detachable structure in one fixed frame, and the core mounting blocks are mounted in two or more in a detachable structure in one moving frame.

Wherein the fixed frame and the movable frame have a plurality of fixed side support bars formed in a polygonal frame shape having an open space at a central portion and coupled to the fixed frame so as to cross the open space of the fixed frame, And a plurality of movable side support bars coupled to the movable frame to cross the movable frame.

A plurality of fixed side receiving grooves for receiving longitudinally opposite ends of the fixed side support bars are formed in the fixed frame, and a plurality of movable side mounting grooves for receiving both longitudinal ends of the movable side support bars are formed in the movable frame And,

The plurality of fixed-side seating grooves are arranged along the width direction of the fixed-side support bars, and the plurality of movable-side seating grooves are arranged along the width direction of the movable-side support bars.

A fixed-side steam supply pipe and a fixed-side steam recovery pipe, which are installed on both sides of the fixed frame and extend along the direction in which the two or more cavity-mounting blocks are arranged, and are connected to the cavity steam supply pipe and the cavity steam return pipe, respectively; A fixed-side cooling water supply pipe and a fixed-side cooling water recovery pipe connected to the cavity cooling water pipe, the fixed-side cooling water supply pipe and the fixed-side cooling water recovery pipe being elongated along the direction in which the two or more cavity mounting blocks are arranged, And a moving-side cooling water supply pipe and a moving-side cooling water recovery pipe connected to the core cooling water pipe, which are mounted on both sides of the moving frame and elongated along the direction in which the two or more core mounting blocks are arranged.

The fixed-side steam supply pipe is provided with a plurality of steam supply nozzles to which the cavity steam supply pipe can be coupled. The fixed-side steam recovery pipe is provided with a plurality of steam recovery nozzles to which the cavity steam recovery pipe can be coupled, A plurality of cavity cooling water supply nozzles and cavity cooling water return nozzles to which the cavity cooling water pipes can be coupled are provided in the supply pipe and the fixed side cooling water return pipe, and the core cooling water pipes are connected to the moving side cooling water supply pipe and the moving- A plurality of core cooling water supply nozzles and a core cooling water recovery nozzle are provided,

Wherein the steam supply nozzle, the steam recovery nozzle, the cavity cooling water supply nozzle, the cavity cooling water recovery nozzle, the core cooling water supply nozzle, and the core cooling water recovery nozzle are independently openable and closable.

The mold apparatus according to the present invention can transmit steam to the core mold side even if steam is provided only to the cavity mold side, thereby reducing the supply amount of steam and simplifying the steam supply structure, and changing the mounting positions of the cavity mold and the core mold Which is advantageous in that it is excellent in usability.

1 is a cross-sectional view of a conventional foamed resin molded article mold apparatus.
2 is a perspective view of a mold apparatus according to the present invention.
3 is an exploded perspective view of a mold apparatus according to the present invention.
4 and 5 are a cross-sectional perspective view and a cross-sectional view of a mold apparatus according to the present invention.
6 is an exploded perspective view showing a structure of coupling the cavity mounting block, the core mounting block, the cavity mold, and the core mold.
7 is a perspective sectional view showing a connection structure of the cavity cooling flow path and the core cooling flow path.
8 and 9 are perspective views showing the mounting structure of the cavity cooling water pipe and the core cooling water pipe.
10 is an exploded perspective view of a mold apparatus according to the present invention in which two cavity molds and two core molds are mounted.

Hereinafter, embodiments of a mold apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a perspective view of a mold apparatus according to the present invention, FIG. 3 is an exploded perspective view of a mold apparatus according to the present invention, and FIGS. 4 and 5 are a cross-sectional perspective view and a sectional view of a mold apparatus according to the present invention. 6 is an exploded perspective view showing a coupling structure of the cavity mounting block, the core mounting block, the cavity mold, and the core mold, and FIG. 7 is a perspective sectional view showing a connection structure of the cavity cooling passage and the core cooling passage.

The mold apparatus according to the present invention is a type of manufacturing apparatus for producing a foamed resin molded product by injecting a foamable resin between a cavity mold 600 and a core mold 700 and sequentially supplying steam and cooling water, The steam flow path is improved and the mounting position of the cavity metal mold 600 and the core metal mold 700 can be changed.

That is, the mold apparatus according to the present invention includes a stationary frame 100, a movable frame 200 movable toward or away from the stationary frame 100, A cavity mounting block 400 detachably coupled to the stationary frame 100 and a core mounting block 500 detachably coupled to the movable frame 200, A core mold 700 which is detachably coupled to the core mounting block 500 and a cavity mold 600 which is detachably coupled to the cavity mounting block 400 A cavity steam supply pipe 430 and a cavity steam return pipe 440 for supplying and recovering steam to the internal space of the cavity mounting block 400 and a cavity cooling water pipe 450 And a core cooling water pipe 540 for supplying and recovering cooling water to the inside of the core mounting block 500. When the cavity mounting block 400 and the core mounting block 500 are in close contact with each other A cavity internal flow path 422 is formed in the cavity mounting block 400 so that the internal space of the cavity mounting block 400 and the internal space of the core mounting block 500 are communicated with each other, And the core internal flow path 522 communicating with the cavity internal flow path 422 is formed.

At this time, the cavity mounting block 400 on which the cavity mold 600 is mounted includes a cavity back plate 410 coupled to the stationary frame 100 by a separate fastening unit such as a fastening screw or the like, And a cavity sidewall 420 which is formed on the inner surface of the cavity 410 (more specifically, the surface facing the movable frame 200). The core mounting block 500 on which the cores are mounted includes a core plate 510 connected to the moving frame 200 by a separate fastening unit such as a fastening screw and the like A core side wall 520 which is erected on a side face (more specifically, a face facing the fixed frame 100), and an inner plate 530 which is mounted so as to cover the end of the core side wall 520. Between the cavity mold 600 and the core mold 700, a molding space is secured in accordance with the shape of the product to be manufactured, a feeder (not shown) for injecting the foamable resin into the molding space, An ejection pin (not shown) for ejecting the ink is mounted to pass through the rear surface of the cavity mounting block 400. Since such a feeder and ejection pin are applied to substantially the same structure in a conventional mold apparatus, It is omitted.

When the cavity internal block 422 and the core internal block 522 are formed in the cavity mounting block 400 and the core mounting block 500 as described above, The supplied steam fills the space between the cavity mounting block 400 and the cavity mold 600 and flows into the inner space of the core mounting block 500 through the cavity inner flow path 422 and the core inner flow path 522 (The space between the core plate 510 and the inner plate 530). That is, in the mold apparatus according to the present invention, the core mounting block 500 can be filled with steam of high temperature and high pressure even without a separate steam supply pipe for supplying steam to the core mounting block 500, This has the advantage of being simple and reducing the energy used for steam supply.

In this embodiment, the cavity inner flow path 422 and the core inner flow path 522 are formed on both sides of the cavity mounting block 400 in the longitudinal direction and on both sides in the longitudinal direction of the core mounting block 500, The position and the number of the cavity inner flow path 422 and the core inner flow path 522 may be variously changed according to the sizes and shapes of the cavity mounting block 400 and the core mounting block 500.

The mold apparatus according to the present invention is not so constructed that the cavity mounting block 400 and the core mounting block 500 are formed so as to cover the entire open portion of the fixed frame 100 and the movable frame 200, The cavity mounting block 400 and the core mounting block 500 are formed in a small size so as to cover a part of the frame 100 and the open part of the moving frame 200, have. Accordingly, the cavity mounting block 400 and the core mounting block 500 may be mounted on at least two stationary frames 100 and one moving frame 200, respectively. For example, as shown in FIG. 3, the cavity mounting block 400 and the core mounting block 500 may have a structure in which the cavity frame 400 and the core mounting block 500 may cover the open frame of the fixed frame 100 and the movable frame 200, And can be respectively mounted to the fixed frame 100 and the movable frame 200, respectively.

Conventionally, regardless of the size of the product to be manufactured, the size of the cavity and the core must be made large in accordance with the size of the mold base, so that not only the total manufacturing cost of the mold apparatus is increased but also a large amount of steam and cooling water There is a problem that the manufacturing cost is increased. However, when the cavity mounting block 400 and the core mounting block 500 are coupled to the fixed frame 100 and the movable frame 200 in a detachable manner as in the mold apparatus according to the present invention, The core mounting block 500 and the core mounting block 500 can be miniaturized, thereby reducing the total manufacturing cost and reducing the required amount of steam and cooling water, thereby reducing manufacturing cost.

When a product to be manufactured is smaller than the size of the fixed frame 100 and the movable frame 200, a plurality of cavities and cores are installed in one mold base. However, in this case, Even if a cavity or a core of any one of the cavity and the core is defective, the entire mold apparatus is required to be periodically repaired to repair the defective portion and then restarted. As a result, the productivity is significantly reduced. However, when the mold apparatus according to the present invention is used, if any one of the plurality of cavity molds 600 and the core molds 700 is defective, the product can be manufactured using the remaining molds while removing only the corresponding molds As a result, productivity deterioration can be minimized.

In addition, since the cavity mounting block 400 and the core mounting block 500 are left unchanged, only the cavity mold 600 and the core mold 700 can be replaced to produce another kind of product, It is possible to remarkably reduce the manufacturing cost of the mold apparatus. That is, when the type of the product to be manufactured is changed, only the cavity mold 600 and the core mold 700 can be replaced with new ones, and the remaining parts can be used as they are for common use, There is an advantage that it can be.

In the mold apparatus according to the present invention, since the cavity mounting block 400 and the core mounting block 500 can be independently mounted on one fixed frame 100 and the movable frame 200, There is also an advantage that it can be produced. That is, the cavity mold 600 and the core mold 700 for an automobile bumper are mounted on a pair of the cavity mounting block 400 and the core mounting block 500, and the other pair of the cavity mounting block 400 and the core The mounting block 500 has the advantage that the automobile bumper and the packaging container can be manufactured at the same time by mounting the cavity mold 600 and the core mold 700 for the packaging machine.

When the cavity mounting block 400 and the core mounting block 500 are made smaller than the fixed frame 100 and the movable frame 200 as in the mold apparatus according to the present invention, Only the both sides in the longitudinal direction (the left and right direction in the present embodiment) of the fixed frame 100 and the movable frame 200 are coupled to the fixed frame 100 and the movable frame 200, and both sides in the width direction So that it can not be coupled to the frame 200, which may cause a problem that the fastening force is lowered.

The mold apparatus according to the present invention includes a plurality of fixed side support bars 150 coupled to the stationary frame 100 to cross the open space of the stationary frame 100, (230) coupled to the moving frame (200) so as to cross the open space of the movable frame (200). When the fixed side support bar 150 and the movable side support bar 230 are provided as described above, both sides in the width direction of the cavity mounting block 400 are seated on the fixed side support bar 150, Side support bar 230, so that the cavity mounting block 400 and the core mounting block 500 can be stably coupled to each other.

In this embodiment, only four fixed side support bars 150 and the movable side support bars 230 are shown to be coupled to one fixed frame 100 and the movable frame 200, 150 and the number of the movable support bars 230 may be variously changed according to the specifications of the cavity mounting block 400 and the core mounting block 500 (more specifically, the width direction size).

The fixed frame 100 is provided with the fixed side support bar 150 and the movable side support bar 230 so that the fixed side support bar 150 and the movable side support bar 230 can be stably coupled to the fixed frame 100 and the movable frame 200, A plurality of fixed seating grooves 160 on which both longitudinal ends of the moving support bar 230 are mounted are formed on the movable frame 200. The movable frame 200 is provided with a movable side seating groove 240 are preferably formed in plural. At this time, the plurality of fixed-side seating grooves 160 are formed in the fixed-side support bar 150 so that the mounting positions of the fixed-side support bar 150 and the movable-side support bar 230 can be freely adjusted according to the user's selection. Side supporting bars 230 are arranged in a line along a width direction of the moving-side supporting bars 230 (in the vertical direction in this embodiment), and the plurality of moving- It is preferable to arrange them in a line.

In addition, the mold apparatus according to the present invention may be configured such that the stationary frame 100 and the movable frame 200 are not formed in the shape of a single flat plate, but are formed in a hollow shape having an open center in the center, It is possible to reduce the weight of the apparatus and the manufacturing cost of the apparatus, and it is also possible to reduce the power required to move the movable frame 200.

Steam and cooling water must be sequentially supplied between the cavity mounting block 400 and the cavity mold 600 and the core mounting block 500 must be supplied sequentially in order to form the foamed resin introduced between the cavity mold 600 and the core mold 700. [ It is necessary to supply cooling water between the core mold 700 and the core mold 700. In this case, the mold apparatus according to the present invention is further characterized in that steam and cooling water can be stably supplied even when the positions of the cavity mounting block 400 and the core mounting block 500 are changed.

That is, the cavity steam supply pipe 430 and the cavity steam return pipe 440 for supplying the steam between the cavity mounting block 400 and the cavity mold 600 are arranged in a direction in which two or more cavity mounting blocks 400 are arranged A fixed side cooling water supply pipe 130 for supplying cooling water between the cavity mounting block 400 and the cavity mold 600 and a fixed side cooling water supply pipe 130 for supplying cooling water between the cavity mounting block 400 and the cavity mold 600, The cooling water recovering pipe 140 is also installed on both sides of the fixing frame 100 so as to extend along the direction in which the two or more cavity mounting blocks 400 are arranged, Side cooling water supply pipe 210 and the moving-side cooling water recovery pipe 220 may be extended on both sides of the moving frame 200 along a direction in which two or more core mounting blocks 500 are arranged.

The fixed steam supply pipe 110 is provided with a plurality of steam supply nozzles 112 to which the cavity steam supply pipe 430 can be coupled and the fixed steam collection pipe 120 is connected to the cavity steam return pipe 440 And a plurality of cavity cooling water supply holes (not shown) are formed in the fixed side cooling water supply pipe 130 and the fixed side cooling water return pipe 140, respectively, to which the cavity cooling water pipe 450 can be coupled, And a cavity cooling water recovery nozzle 142. The moving-side cooling water supply pipe 210 and the moving-side cooling water recovery pipe 220 are provided with a plurality of core cooling water pipes (not shown) A supply nozzle 212 and a core coolant recovery nozzle 222 are provided. Accordingly, the user can control the cavity steam supply pipe 430, the cavity steam return pipe 440, the cavity cooling water pipe 450, and the core cooling water pipe 540 according to the position of the cavity mounting block 400 and the core mounting block 500 It can be connected to a nozzle at an appropriate position.

Figs. 8 and 9 are perspective views showing the mounting structure of the cavity cooling water pipe 450 and the core cooling water pipe 540. Fig.

The cavity cooling water pipe 450 and the core cooling water pipe 540 included in the present invention may be arranged in various shapes according to the shape of the foamed resin between the cavity mold 600 and the core mold 700, For example, as shown in this embodiment, the cavity cooling water pipe 450 may be disposed on the cavity back plate 410 in a rectangular shape, and the core cooling water pipe 540 may be disposed on the core back plate 510, As shown in FIG.

That is, the cavity cooling water pipe 450 and the core cooling water pipe 540 may be formed in various shapes according to the shape of the product to be manufactured in addition to the shape shown in this embodiment.

10 is an exploded perspective view of a mold apparatus according to the present invention in which two cavity molds 600 and two core molds 700 are mounted.

3, the cavity mounting block 400 and the core mounting block 500 may be mounted on one fixed frame 100 and the movable frame 200, respectively, The cavity mounting block 400 and the core mounting block 500 may be mounted one by one as shown in FIG. 10 so as to produce two products. Further, three cavity mounting blocks 400 and three core mounting blocks 500 may be mounted on one fixed frame 100 and the movable frame 200, respectively, so as to produce three products at a time.

As described above, the number of the cavity mounting block 400 and the core mounting block 500 mounted on the stationary frame 100 and the movable frame 200 can be maximized to increase the product productivity The number of the cavity mounting block 400 and the core mounting block 500 mounted on the fixed frame 100 and the movable frame 200 is reduced to reduce the amount of steam and cooling water used .

10, when two cavity mounting blocks 400 and two core mounting blocks 500 are provided, the cavity mold 600 that is seated on each cavity mounting block 400 is selected as another type And by selecting different types of core molds 700 to be placed on each core mounting block 500, different types of products can be produced in one step. That is, by using the mold apparatus according to the present invention, it is possible to produce a small variety of products in a single step,

At this time, the steam supply nozzle 112, the steam recovery nozzle 122, the cooling water supply nozzle, the cavity steam supply pipe 430, the cavity steam return pipe 440, the cavity cooling water pipe 450 and the core cooling water pipe 540 are opened and the remaining nozzles are kept closed. The structure in which the respective nozzles are independently opened and closed as described above is widely commercialized in the technical field of the present invention, The description is omitted.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the scope of the present invention is not limited to the disclosed exemplary embodiments. It will also be appreciated that many modifications and variations will be apparent to those skilled in the art without departing from the scope of the present invention.

100: fixed frame 110: fixed side steam supply pipe
112: steam supply nozzle 120: fixed side steam recovery pipe
122: steam recovery nozzle 130: fixed side cooling water supply pipe
140: fixed side cooling water recovery pipe 150: fixed side support bar
160: Fixed-side seating groove 200: Moving frame
210: mobile cooling water supply pipe 220: mobile cooling water recovery pipe
230: Moving side support bar 240: Moving side seating groove
400: cavity mounting block 410: cavity plate
420: cavity side wall 422: cavity inner flow path
430: Cavity steam supply pipe 440: Cavity steam return pipe
450: cavity cooling water piping 500: core mounting block
510: core plate 520: core side wall
522: core inner flow path 530: inner plate
540: core cooling water pipe 600: cavity mold
700: Core mold

Claims (6)

A fixed frame;
A movable frame movable toward or away from the fixed frame;
A cavity mounting block having an inner space opened to a side facing the moving frame, the cavity mounting block being detachably coupled to the stationary frame;
A core mounting block detachably coupled to the moving frame;
A cavity mold that is detachably coupled to cover an inner space opening of the cavity mounting block;
A core mold coupled to the core mounting block in a detachable manner;
A cavity steam supply pipe and a cavity steam recovery pipe for supplying and recovering steam to the internal space of the cavity mounting block;
A cavity cooling water pipe for supplying and recovering cooling water to the internal space of the cavity mounting block; And
And a core cooling water pipe for supplying and recovering cooling water into the core mounting block,
Wherein the cavity mounting block is formed with a cavity internal flow path so that the internal space of the cavity mounting block and the internal space of the core mounting block are communicated when the cavity mounting block and the core mounting block are in close contact with each other, And a core inner flow path communicating with the cavity inner flow path is formed. The method according to claim 1,
Wherein at least two cavity mounting blocks are detachably mountable to one fixed frame, and at least two cavity mounting blocks are detachably mounted on one moving frame. The method of claim 2,
Wherein the fixed frame and the movable frame are formed in a polygonal frame shape having an open space at a central portion thereof,
A plurality of fixed side support bars coupled to the fixed frame to cross the open space of the fixed frame, and a plurality of movable side support bars coupled to the movable frame to cross the open space of the movable frame . The method of claim 3,
A plurality of fixed side receiving grooves for receiving longitudinally opposite ends of the fixed side support bars are formed in the fixed frame, and a plurality of movable side mounting grooves for receiving both longitudinal ends of the movable side support bars are formed in the movable frame And,
Wherein the plurality of fixed side seating grooves are arranged along the width direction of the fixed side support bar and the plurality of movable side seating grooves are arranged along the width direction of the movable side support bar. The method of claim 2,
A fixed-side steam supply pipe and a fixed-side steam recovery pipe which are installed on both sides of the fixed frame and extend along a direction in which the two or more cavity mounting blocks are arranged, respectively, and connected to the cavity steam supply pipe and the cavity steam return pipe;
A fixed-side cooling water supply pipe and a fixed-side cooling water recovery pipe connected to the cavity cooling water pipe, the fixed-side cooling water supply pipe and the fixed-side cooling water recovery pipe being elongated along the direction in which the two or more cavity mounting blocks are arranged,
A moving-side cooling water supply pipe and a moving-side cooling water-recovering pipe connected to the core cooling water pipe, the moving-side cooling water supply pipe and the moving-side cooling water recovery pipe being elongated along the direction in which the two or more core-
Further comprising a plurality of molds. The method of claim 5,
The fixed-side steam supply pipe is provided with a plurality of steam supply nozzles to which the cavity steam supply pipe can be coupled. The fixed-side steam recovery pipe is provided with a plurality of steam recovery nozzles to which the cavity steam recovery pipe can be coupled, A plurality of cavity cooling water supply nozzles and cavity cooling water return nozzles to which the cavity cooling water pipes can be coupled are provided in the supply pipe and the fixed side cooling water return pipe, and the core cooling water pipes are connected to the moving side cooling water supply pipe and the moving- A plurality of core cooling water supply nozzles and a core cooling water recovery nozzle are provided,
Wherein the steam supply nozzle, the steam recovery nozzle, the cavity cooling water supply nozzle, the cavity cooling water recovery nozzle, the core cooling water supply nozzle, and the core cooling water recovery nozzle are independently openable and closable.

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