CN214925402U - Die set - Google Patents

Abstract

The application provides a mould relates to prefabricated component technical field. The mold comprises a base, an outer mold and an inner mold. The outer mold is connected with the base, and the inner mold is positioned on the inner side of the outer mold. The internal mold comprises an internal cavity forming film, an internal cavity framework and an adjusting mechanism. The inner cavity framework comprises at least two first joint points and at least two second joint points, and the inner cavity forming film is connected with the inner cavity framework at the first joint points. The adjusting mechanism is connected with the inner cavity framework at the second joint point. The inner cavity forming film, the base and the outer mold enclose a pouring space. The inner cavity forming film, the base and the outer mold of the mold enclose a pouring space, and the inner cavity forming film is a whole without abutted seams. The adjusting mechanism is adjusted, so that the shape of the inner cavity forming film can be conveniently controlled, and the demolding is convenient.

Description

Die set

Technical Field

The application relates to the technical field of prefabricated parts, in particular to a mold.

Background

At present, in the prefabricated PC component industry, a plurality of three-dimensional components with inner cavities, such as a bay window component, a pipe gallery component and the like, exist. The mold for producing the component consists of an inner mold and an outer mold, in order to ensure smooth demolding of the component, the inner mold and the outer mold are generally required to be divided into a plurality of pieces, the mold is convenient to disassemble, the outer mold is generally divided into 4 outer templates, and the inner mold is convenient to shrink and open the mold and is divided into 4-8 inner templates.

Wherein, the centre form is after polylith inner formword concatenation, because the piece is many, leaks thick liquid easily, and after the component drawing of patterns, the inner chamber part forms the piece in inner formword concatenation position, influences the appearance quality.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of this application is to provide a mould, it aims at improving the problem that the inner membrance concatenation piece is more among the correlation technique, leaks thick liquid easily.

The embodiment of the application provides a mold, which comprises a base, an outer mold and an inner mold. The outer mold is connected with the base, and the inner mold is positioned on the inner side of the outer mold. The internal mold comprises an internal cavity forming film, an internal cavity framework and an adjusting mechanism. The inner cavity framework comprises at least two first joint points and at least two second joint points, and the inner cavity forming film is connected with the inner cavity framework at the first joint points and is positioned on the outer side of the inner cavity framework. The adjusting mechanism is connected with the inner cavity framework at the second joint point. The inner cavity forming film, the base and the outer mold enclose a pouring space.

The inner cavity forming film, the base and the outer mold of the mold enclose a pouring space, the inner cavity forming film is a whole body, no abutted seam exists, and slurry is not easy to leak during pouring. Moreover, after the member is demoulded, the abutted seam can not be formed, and the appearance quality is better. The inner cavity framework of the mold comprises at least two first joint points and at least two second joint points, the first joint points are connected with the inner cavity molding film, the second joint points are connected with the adjusting mechanism, and the adjusting mechanism can be adjusted to conveniently control the contraction or the expansion of the inner cavity molding film. When the inner cavity molding film is opened, pouring is facilitated. When the inner cavity molding film shrinks, demolding is convenient.

As an alternative to the embodiments of the present application, the at least two first articulation points and the at least two second articulation points together support the inner cavity-forming membrane when the mold is closed. When the mold is opened, the adjusting mechanism is adjusted, the at least two second joint points are mutually closed, the at least two first joint points are mutually closed, and the inner cavity molding film is deformed and shrunk. When the die is assembled, the first joint point and the second joint point support the inner cavity forming film together, and the inner cavity forming film is stable and reliable during pouring. And during the die sinking, adjust adjustment mechanism and can drive first joint point and second joint point and draw close, let the inner chamber shaping membrane shrink, can be comparatively convenient carry out the drawing of patterns operation.

As an optional technical solution of the embodiment of the present application, the adjusting mechanism includes a movable member and at least two connecting members, and the at least two connecting members connect the movable member and the at least two second joint points. When the movable piece moves, the at least two second joint points are close to each other or far away from each other. Through setting up moving part and two at least connecting pieces, when needs pour, only need adjust the moving part, can make two at least second knuckle points movements for the inner chamber shaping membrane expandes. When the mold is required to be demolded, at least two second joint points can be moved only by adjusting the moving part, so that the inner cavity molding film is contracted, and the operation is simple and convenient.

As an optional technical scheme of the embodiment of the application, the adjusting mechanism comprises a guide rod, the guide rod is connected with the base, and the guide rod is sleeved with the movable part. The movable piece can slide along the length direction of the guide rod. Through setting up the guide arm, for the moving part leads and spacing, adjust the position of moving part on the guide arm, can control the shrink of inner chamber shaping membrane or open.

As an optional technical scheme of the embodiment of the application, the guide rod is positioned in the center of the outer die and is perpendicular to the base. The guide rod is arranged in the center of the outer die, so that the at least two second joint points can be controlled conveniently, and the guide rod is perpendicular to the base, so that the action amplitude of the at least two second joint points is approximately the same and the control is easy.

As an optional technical solution of the embodiment of the present application, two connecting members are correspondingly disposed on one second joint point. Two connecting pieces are correspondingly arranged on one second joint point, so that the contraction and expansion stability of the inner cavity framework is improved.

As an optional technical solution of the embodiment of the present application, at least two second joint points are slidably connected to the base respectively. The second joint point is connected with the base in a sliding mode, so that the moving resistance of the second joint point is reduced, and the second joint point is driven to move more easily when the adjusting mechanism is adjusted.

As an alternative to the embodiments of the present application, the overmold includes a plurality of outer mold plates, each outer mold plate rotatably coupled to the base. When the mold is required to be opened, the components can be exposed by rotating the outer templates, so that the mold opening operation is simple and easy.

As an optional technical scheme of the embodiment of the application, the inner cavity forming film is a steel belt which is connected end to end. The steel belt has good toughness, the integrity is easy to guarantee, and leaks can be avoided when pouring.

As an optional technical solution of the embodiment of the present application, the inner cavity framework includes a plurality of support plates, the support plates are sequentially and rotatably connected and enclose a closed figure, and a connection position of the two support plates is a first joint point or a second joint point. Through adopting a plurality of backup pads to make a plurality of backup pads rotationally connect in proper order, be convenient for adjust adjustment mechanism and support inner chamber shaping membrane, or adjust adjustment mechanism and make inner chamber skeleton warp the shrink, further drive the shrink of inner chamber shaping membrane, accomplish the drawing of patterns.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic structural diagram of a mold provided in an embodiment of the present application when the mold is closed;

FIG. 2 is a cross-sectional view taken at the location II-II in FIG. 1;

fig. 3 is a schematic structural diagram of a mold according to an embodiment of the present disclosure when the mold is opened;

FIG. 4 is a cross-sectional view taken at the location IV-IV in FIG. 3.

Icon: 10-a mould; 100-a base; 110-a slide rail; 200-external mold; 210-an outer template; 300-an inner mold; 310-inner cavity forming film; 320-inner cavity framework; 321-a first articulation point; 322-a second articulation point; 323-a support plate; 330-an adjustment mechanism; 331-a movable member; 332-a connector; 333-guide rod; 400-member.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present application, it is to be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, refer to the orientation or positional relationship as shown in the drawings, or as conventionally placed in use of the product of the application, or as conventionally understood by those skilled in the art, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be considered as limiting the present application.

Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Examples

Referring to fig. 1, with reference to fig. 2, fig. 3 and fig. 4, the present embodiment provides a mold 10, where the mold 10 includes a base 100, an outer mold 200 and an inner mold 300. The outer mold 200 is connected to the base 100, and the inner mold 300 is located inside the outer mold 200. The inner mold 300 includes an inner cavity shaping membrane 310, an inner cavity skeleton 320, and an adjustment mechanism 330. The luminal skeleton 320 comprises at least two first articulation points 321 and at least two second articulation points 322, the luminal contoured film 310 being connected to the luminal skeleton 320 at the first articulation points 321. Adjustment mechanism 330 is coupled to lumenal frame 320 at second articulation point 322 and is positioned outside of lumenal frame 320. The inner cavity molding film 310, the base 100 and the outer mold 200 enclose a casting space. At least two first joints 321 and at least two second joints 322 together support the inner cavity-forming membrane 310 when the mold is closed. When the mold is opened, the adjusting mechanism 330 is adjusted, the at least two second joint points 322 are closed, the at least two first joint points 321 are closed, and the inner cavity molding film 310 deforms and contracts. The inner cavity molding film 310, the base 100 and the outer mold 200 of the mold 10 enclose a casting space, the inner cavity molding film 310 is a whole body without seams, and slurry is not easy to leak during casting. Moreover, after the member 400 is demolded, no patchwork is formed, and the appearance quality is good. The inner cavity framework 320 of the mold 10 comprises at least two first joint points 321 and at least two second joint points 322, the first joint points 321 are connected with the inner cavity molding film 310, the second joint points 322 are connected with the adjusting mechanism 330, and the inner cavity molding film 310 can be conveniently controlled to shrink or expand by adjusting the adjusting mechanism 330. When the inner cavity molding film 310 is opened, pouring is facilitated. When the cavity-forming film 310 shrinks, demolding is facilitated.

Referring to fig. 1 and 2, with reference to fig. 3 and 4, in the present embodiment, the base 100 is used as a foundation support for supporting and installing the inner mold 300 and the outer mold 200, and encloses a casting space together with the inner mold 300 and the outer mold 200, so that the member 400 is cast and molded in the casting space. In this embodiment, the overmold 200 includes a plurality of outer mold plates 210, each outer mold plate 210 rotatably coupled to the base 100. When the mold opening is required, the plurality of outer mold plates 210 are rotated to expose the member 400, so that the mold opening operation is simple and easy. When mold clamping is required, the plurality of outer mold plates 210 are rotated so that the plurality of outer mold plates 210 are joined together to form a wall surface of the casting space. When the outer formworks 210 are assembled, in order to prevent the outer formworks 210 from rotating relative to the base 100 during casting and causing slurry leakage, two adjacent outer formworks 210 may be detachably connected together, for example, fastened by fastening bolts. When the mold needs to be opened, the external mold 200 can be opened only by removing the fastening bolts and then rotating the external mold plate 210 relative to the base 100, which is more convenient.

In this embodiment, the outer mold plate 210 is rotatably coupled to the base 100 by a hinge. In an alternative embodiment, the bottom of the outer mold plate 210 is provided with a rotating shaft, and the rotating shaft is rotatably provided on the base 100. The outer mold plate 210 can be driven to rotate by rotating the rotating shaft.

Referring to fig. 1 and 2, and fig. 3 and 4, in the present embodiment, the outer mold 200 includes four outer mold plates 210, and the four outer mold plates 210 enclose a rectangle. In other alternative embodiments, the number of the outer templates 210 may also be three or more than four, as long as the plurality of outer templates 210 are ensured to enclose a closed figure. The specific pattern shape of the enclosure is determined by the shape of the fabricated member 400.

Referring to fig. 1 and 2, and fig. 3 and 4, in the present embodiment, the inner mold 300 includes an inner cavity molding film 310, an inner cavity skeleton 320, and an adjusting mechanism 330. The inner cavity molding film 310 is a whole body, has no abutted seam, and is not easy to leak slurry during pouring. In this embodiment, the inner cavity forming film 310 is a steel belt connected end to end. The steel belt has good toughness, the integrity is easy to guarantee, and leaks can be avoided when pouring. In an alternative embodiment, the inner cavity forming membrane 310 is a rubber ring connected end to end. In another alternative embodiment, the inner cavity forming membrane 310 is a silica gel ring connected end to end.

Referring to fig. 1 and 2, in the present embodiment, the inner cavity forming film 310 has a cylindrical structure with a rectangular cross section when not deformed. Of course, the inner cavity molding film 310 may have another shape without being deformed, for example, a cylindrical structure having a circular cross section. The specific shape of the cavity-forming membrane 310 when undeformed is determined by the shape of the inner peripheral surface of the member 400.

Referring to fig. 1 and 2, with reference to fig. 3 and 4, in the present embodiment, the inner cavity frame 320 includes a plurality of support plates 323, the support plates 323 are sequentially and rotatably connected and enclose a closed figure, and a connection position of the two support plates 323 is a first joint point 321 or a second joint point 322. By adopting the plurality of support plates 323 and enabling the plurality of support plates 323 to be sequentially and rotatably connected, the adjusting mechanism 330 is convenient to adjust to support the inner cavity molding film 310, or the adjusting mechanism 330 is adjusted to enable the inner cavity framework 320 to deform and contract, the inner cavity molding film 310 is further driven to contract, and demolding is completed.

In an alternative embodiment, the internal skeletal frame 320 is formed of a resilient member to form a resilient frame. The elastic frame is not deformed, and has the same shape as the cavity molding film 310. The elastic frame supports the inner cavity-forming membrane 310 on the inner side of the inner cavity-forming membrane 310 and is connected to the inner cavity-forming membrane 310 at a first articulation point 321. The resilient frame is connected to the adjustment mechanism 330 at a second articulation point 322. When the adjusting mechanism 330 is adjusted, the at least two second joint points 322 are moved close to each other, and the at least two first joint points 321 are driven to move close to each other, so that the elastic frame deforms, and the inner cavity molding film 310 is driven to deform and contract.

In this embodiment, the cavity forming membrane 310 is welded and fixed to the cavity frame 320 at the first joint point 321. Adopt welded connection, comparatively firm, stability is better. In other alternative embodiments, the luminal contoured film 310 is adhered to the luminal skeleton 320 at the first articulation point 321.

Referring to fig. 1 and 2, in the present embodiment, when mold clamping is performed, the plurality of support plates 323 surround a rectangle to support the cavity molding film 310. The first joint points 321 are located at four corners of a rectangle surrounded by the plurality of support plates 323, and the second joint points 322 are located at middle points of four sides of the rectangle surrounded by the plurality of support plates 323. The first joint points 321 and the second joint points 322 are sequentially arranged in a staggered manner, one second joint point 322 is arranged between the two first joint points 321, and one first joint point 321 is arranged between the two second joint points 322. In the present embodiment, there are four first joint points 321, and four second joint points 322. In an alternative embodiment, there are two first articulation points 321 and two second articulation points 322. Of course, the first joint point 321 may also be provided as three, five or more than five; the second joint points 322 may also be provided in three, five, or more than five.

Referring to fig. 3 and 4, in the present embodiment, when the mold is opened, the adjusting mechanism 330 is adjusted, and the at least two second joint points 322 are close to the adjusting mechanism 330, because the length of each supporting plate 323 is fixed, when the at least two second joint points 322 are close to the adjusting mechanism 330, the at least two first joint points 321 are forced to close to each other. Since the first joint 321 is connected to the inner cavity forming membrane 310, the inner cavity forming membrane 310 is also deformed and contracted by the first joint 321, and finally, the inner cavity forming membrane 310 is separated from the member 400.

Referring to fig. 1 and 2, and fig. 3 and 4, in the present embodiment, at least two second joints 322 are slidably connected to the base 100, respectively. The second joint 322 is slidably connected to the base 100, so that the moving resistance of the second joint 322 is reduced, and the second joint 322 is more easily moved when the adjusting mechanism 330 is adjusted. In this embodiment, the base 100 is provided with a slide rail 110, and the second joint point 322 is provided with a slider, which is engaged with the slide rail 110 to realize that the second joint point 322 is slidably disposed on the base 100. In another optional embodiment, a sliding slot is formed on the base 100, and the second joint point 322 is provided with a ball, which is accommodated in the sliding slot, so as to realize the slidable connection between the second joint point 322 and the base 100.

Referring to fig. 1 and fig. 2, with reference to fig. 3 and fig. 4, in the present embodiment, the adjusting mechanism 330 includes a movable member 331 and at least two connecting members 332, and the at least two connecting members 332 connect the movable member 331 and the at least two second joint points 322. When the movable member 331 is actuated, at least two second joint points 322 move toward or away from each other. By arranging the movable piece 331 and the at least two connecting pieces 332, when pouring is needed, only the movable piece 331 needs to be adjusted, and then the at least two second joint points 322 can be actuated, so that the inner cavity forming film 310 is unfolded. When the mold is to be removed, the at least two second joint points 322 can be moved only by adjusting the movable member 331, so that the inner cavity molding film 310 is contracted, and the operation is simple and convenient. In this embodiment, the connecting member 332 is a connecting rod, one end of the connecting rod is connected to the second joint point 322, and the other end of the connecting rod is connected to the movable member 331.

In an alternative embodiment, connecting member 332 is a steel cable, one end of connecting member 332 is connected to second articulation point 322, and the other end of connecting member 332 is connected to moveable member 331. Forward rotation of hinge 331 causes engagement member 332 to wrap around hinge 331, pulling second articulation point 322 toward hinge 331. The connecting element 332 is separated from the movable element 331 by rotating the movable element 331 in the opposite direction, the second joint point 322 is released, the inner cavity forming film 310 is not pulled any more, the deformation is recovered, the first joint point 321 is pulled to be deformed and recovered, and the first joint point 321 drives the second joint point 322 to recover the initial position. To ensure that the first articulation point 321 is able to reset, in this embodiment, the adjustment mechanism 330 may further include a resilient element, such as a spring, configured to cause the second articulation point 322 to have a tendency to move away from the moveable member 331.

Referring to fig. 1 and 2 and fig. 3 and 4, in the present embodiment, two connecting members 332 are correspondingly disposed on one second joint point 322. Two connecting pieces 332 are correspondingly arranged on one second joint point 322, so that the contraction and expansion stability of the inner cavity framework 320 is improved. Optionally, three or more connecting members 332 may be correspondingly disposed on one second joint point 322.

Referring to fig. 1 and 2, and referring to fig. 3 and 4, in the present embodiment, the adjusting mechanism 330 includes a guide rod 333, and the guide rod 333 is connected to the base 100. The movable member 331 is sleeved on the guide rod 333, and the movable member 331 can slide along the length direction of the guide rod 333. The guide rod 333 is arranged to guide and limit the moving part 331, and the position of the moving part 331 on the guide rod 333 is adjusted, so that the inner cavity forming film 310 can be controlled to contract or expand. In the present embodiment, the guide rod 333 is located at the center of the outer mold 200 and is perpendicular to the base 100. The guide rod 333 is disposed at the center of the outer mold 200 to facilitate simultaneous control of the at least two second joint points 322, and the guide rod 333 is disposed perpendicular to the base 100 to make the motion amplitudes of the at least two second joint points 322 substantially the same for easy control.

In this embodiment, the adjusting mechanism 330 further includes a driving element for driving the movable element 331. The moving piece 331 is driven to move by the driving piece, so that the automation degree is high, and the moving distance of the moving piece 331 is easy to control. The driving member can be a hydraulic cylinder, an air cylinder or a motor and the like. In an alternative embodiment, the adjustment mechanism 330 is not provided with a driving member, and the movable member 331 is driven by a human force to slide along the guide rod 333.

The present embodiment provides a mold 10 that operates as follows:

in the mold closing state, the inner mold 300, the outer mold 200 and the base 100 enclose a cavity shaped like a Chinese character 'hui', wherein the four outer mold plates 210 are tightly connected through bolts or other fastening modes, after the mold 10 is subjected to concrete distribution and other operation processes, the liquid concrete enters the cavity shaped like a Chinese character 'hui', and after curing and other processes, the liquid concrete is cured in the cavity shaped like a Chinese character 'hui', so that the member 400 is formed. After the member 400 is formed, the mold 10 is opened to facilitate the demolding of the finished member 400, the bolts of the four outer mold plates 210 are removed or other fastening releasing operations are performed, the outer mold plates 210 are turned over along the hinges connected to the base 100, and the outer mold plates 210 are opened. The driving member drives the movable member 331 to slide upward, and drives the second joint point 322 to slide inward along the sliding rail 110 through the connecting member 332, so as to drive the first joint point 321 to contract inward, and the inner cavity forming film 310 also deforms and contracts inward along with the inward contraction of the first joint point 321 due to the welding of the inner cavity forming film 310 on the first joint point 321. After the outer mold 200 and the inner mold 300 are in the mold opened state, the member 400 is taken out.

The present embodiment provides a mold 10, and the mold 10 includes a base 100, an outer mold 200, and an inner mold 300. The outer mold 200 is connected to the base 100, and the inner mold 300 is located inside the outer mold 200. The inner mold 300 includes an inner cavity shaping membrane 310, an inner cavity skeleton 320, and an adjustment mechanism 330. The luminal skeleton 320 comprises at least two first articulation points 321 and at least two second articulation points 322, the luminal contoured film 310 being connected to the luminal skeleton 320 at the first articulation points 321. Adjustment mechanism 330 is coupled to lumenal frame 320 at second articulation point 322 and is positioned outside of lumenal frame 320. The inner cavity molding film 310, the base 100 and the outer mold 200 enclose a casting space. At least two first joints 321 and at least two second joints 322 together support the inner cavity-forming membrane 310 when the mold is closed. When the mold is opened, the adjusting mechanism 330 is adjusted, the at least two second joint points 322 are closed, the at least two first joint points 321 are closed, and the inner cavity molding film 310 deforms and contracts. The adjusting mechanism 330 includes a movable member 331 and at least two connecting members 332, where the at least two connecting members 332 connect the movable member 331 and the at least two second joint points 322, and when the movable member 331 is actuated, the at least two second joint points 322 move toward or away from each other. The adjusting mechanism 330 includes a guide rod 333, the guide rod 333 is connected to the base 100, the movable element 331 is sleeved on the guide rod 333, and the movable element 331 can slide along the length direction of the guide rod 333. Two connecting members 332 are provided for one second articulation point 322. At least two second joint points 322 are slidably connected to the base 100, respectively.

The inner cavity molding film 310, the base 100 and the outer mold 200 of the mold 10 enclose a casting space, the inner cavity molding film 310 is a whole body without seams, and slurry is not easy to leak during casting. Moreover, after the member 400 is demolded, no patchwork is formed, and the appearance quality is good. The inner cavity framework 320 of the mold 10 comprises at least two first joint points 321 and at least two second joint points 322, the first joint points 321 are connected with the inner cavity molding film 310, the second joint points 322 are connected with the adjusting mechanism 330, and the inner cavity molding film 310 can be conveniently controlled to shrink or expand by adjusting the adjusting mechanism 330. When the inner cavity molding film 310 is opened, pouring is facilitated. When the cavity-forming film 310 shrinks, demolding is facilitated.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. A mold, characterized in that the mold comprises:

a base;

the outer die is connected with the base;

the centre form, the centre form is located the external mold is inboard, the centre form includes inner chamber shaping membrane, inner chamber skeleton and adjustment mechanism, the inner chamber skeleton includes two at least first joint points and two at least second joint points, the inner chamber shaping membrane is in first joint point with the inner chamber skeleton is connected, and is located the outside of inner chamber skeleton, adjustment mechanism is in the second joint point with the inner chamber skeleton is connected, the inner chamber shaping membrane the base with the external mold encloses into and pours the space.

2. The mold of claim 1, wherein at least two of said first articulation points and at least two of said second articulation points collectively support said inner cavity-forming membrane when closed; when the mold is opened, the adjusting mechanism is adjusted, at least two second joint points are mutually closed, at least two first joint points are driven to be mutually closed, and the inner cavity molding film is deformed and shrunk.

3. The mold according to claim 1, wherein the adjustment mechanism comprises a movable member and at least two connecting members connecting the movable member and the at least two second joint points, wherein when the movable member is actuated, the at least two second joint points are moved toward or away from each other.

4. The mold according to claim 3, wherein the adjusting mechanism comprises a guide rod, the guide rod is connected to the base, the movable member is sleeved on the guide rod, and the movable member can slide along the length direction of the guide rod.

5. The mold of claim 4, wherein the guide rod is located at a center of the outer mold and perpendicular to the base.

6. The mold according to claim 3, wherein two of said connecting members are correspondingly provided to one of said second joint points.

7. The mold of claim 1, wherein the at least two second articulation points are each slidably connected to the base.

8. The mold of claim 1, wherein the outer mold comprises a plurality of outer mold plates, each outer mold plate rotatably connected to the base.

9. The mold of claim 1, wherein the inner cavity forming film is a steel band connected end to end.

10. The mold according to claim 1, wherein the cavity frame comprises a plurality of support plates, the support plates are sequentially rotatably connected and enclose a closed figure, and the connection position of the two support plates is the first joint point or the second joint point.

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