CN113580447A

CN113580447A - Shape-variable die

Info

Publication number: CN113580447A
Application number: CN202110903021.4A
Authority: CN
Inventors: 李震
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2021-11-02

Abstract

The invention provides a shape-variable mold, and relates to the technical field of molds. A shape-variable mold comprises a bottom plate and a plurality of sealing rods, wherein the side walls of the sealing rods are mutually abutted; one end of any sealing rod is provided with a telescopic rod for driving the sealing rod to move, and the other end of any sealing rod is a free end; the telescopic rods are arranged on the bottom plate. By adopting the invention, the sealing rod can be assembled together through a plurality of dies, and the free ends of the sealing rods of the two dies are mutually abutted. According to the size data of model, adjust the length of each telescopic link respectively, the length that different telescopic links shortened is different, and then the distance that the sealing rod moved outwards is different, so form one between a plurality of sealing rods and pour the cavity the same with the model size, can pour raw and other materials in pouring the cavity, just become the fixed model of shape after raw and other materials solidify. Therefore, the method can meet the requirements of individual production, and has the advantages of short pouring time, high speed and high material utilization rate.

Description

Shape-variable die

Technical Field

The invention relates to the technical field of molds, in particular to a shape-variable mold.

Background

Additive manufacturing techniques in the traditional sense, also known as 3D printing, can be summarized as "layered forming additive manufacturing techniques". The core idea of Additive manufacturing can be summarized with a word called Additive, which we can call discrete build-up. That is, the three-dimensional model inside the computer is discretized, and then the discretized parts (called sub-parts) are manufactured one by one, and the sub-parts are stacked to form the final part entity. The traditional additive manufacturing technology (referred to as narrow-sense additive manufacturing) is simply: and according to the three-dimensional design model of the workpiece formed on the computer, the workpiece is subjected to layering and slicing to obtain two-dimensional profile information of each layer of section, and the forming head of the additive manufacturing machine selectively solidifies or cuts the forming material layer by layer under the control of the control system according to the profile information to form each section profile. And gradually and sequentially superposed into a three-dimensional workpiece. Narrow Additive Manufacturing sub-components are "layers" each, which are stacked after the components are discretized into faces, and we can refer to all these techniques as Layered Additive Manufacturing, LAM for short.

The main problems and disadvantages of the existing additive manufacturing technology are that a mode of 'model slicing and layer-by-layer stacking' is adopted, so that the model printing time is long, the printing speed is slow, and the requirement of large-scale personalized production cannot be met. The method needs a support structure, has low material utilization rate and limited material selection range, and can not print metal materials by most techniques.

Disclosure of Invention

The invention aims to provide a shape-variable die which can meet the requirements of individual production, and has the advantages of short pouring time, high speed and high material utilization rate.

The embodiment of the invention is realized by the following steps:

the embodiment of the application provides a shape-variable die, which comprises a bottom plate and a plurality of sealing rods, wherein the side walls of the sealing rods are mutually abutted; one end of any sealing rod is provided with a telescopic rod for driving the sealing rod to move, and the other end of any sealing rod is a free end; the telescopic rods are arranged on the bottom plate.

In actual use, the two dies can be assembled together through a plurality of dies, as shown in fig. 1, the two dies are oppositely arranged and assembled together, and the free ends of the sealing rods of the two dies are abutted with each other. When the model is poured to needs, can scan in advance or design the size data of model, according to the size data of model, adjust the length of each telescopic link respectively, as shown in fig. 3, the length that different telescopic links shorten is different, and then the distance that sealing rod moved outwards is different, form one between so a plurality of sealing rods and pour the cavity the same with the model size, can pour raw and other materials in pouring the cavity, raw and other materials have just become the fixed model of shape after solidifying, can take out the model this moment can. The utility model provides a mould can pour the shape of cavity according to the model adjustment of different sizes, can adapt to individualized production's demand, pours the time weak point, fast, and material utilization is high.

Further, in some embodiments of the present invention, the telescopic rod is an electric push rod.

Further, in some embodiments of the present invention, the above-mentioned device further includes a controller, and the telescopic rods are all electrically connected to the controller.

Further, in some embodiments of the present invention, the sealing device further comprises a limiting frame, and the sealing rods slide through the limiting frame.

Further, in some embodiments of the present invention, a connection rod is disposed between the limiting frame and the bottom plate, and the limiting frame and the bottom plate are connected by the connection rod.

Further, in some embodiments of the present invention, a pouring channel is disposed between the plurality of sealing rods.

Further, in some embodiments of the present invention, the sealing rod has a cross-section in a form of a closely-packed pattern.

Further, in some embodiments of the present invention, the cross-section of the sealing rod is regular hexagonal.

Further, in some embodiments of the present invention, the free end of the sealing rod is provided with an arc-shaped groove.

Further, in some embodiments of the present invention, the sealing rod is made of a metal material.

Compared with the prior art, the embodiment of the invention at least has the following advantages or beneficial effects:

the embodiment of the invention provides a shape-variable die, which comprises a bottom plate and a plurality of sealing rods, wherein the side walls of the sealing rods are mutually abutted; one end of any sealing rod is provided with a telescopic rod for driving the sealing rod to move, and the other end of any sealing rod is a free end; the telescopic rods are arranged on the bottom plate.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed 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 invention 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 front view of two molds abutting against each other according to an embodiment of the present invention;

FIG. 2 is a side view of a mold provided by an embodiment of the present invention;

FIG. 3 is a cross-sectional view of two molds abutting each other according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a sealing rod and a telescopic rod provided in the embodiment of the present invention.

Icon: 1-a bottom plate; 2-sealing rod; 3, a telescopic rod; 4-a limiting frame; 5-a connecting rod; 6-pouring a channel; 7-pouring the cavity.

Detailed Description

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

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.

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 invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are usually placed in when used, the orientations or positional relationships are only used for convenience of describing the present invention and simplifying the description, but the terms do not indicate or imply that the devices or elements indicated must have specific orientations, be constructed in specific orientations, and operate, and therefore, should not be construed as limiting the present invention. Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not require that the components be absolutely horizontal or vertical, but may be slightly inclined. For example, "horizontal" merely means that its orientation is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, "a plurality" represents at least 2.

In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two elements can be directly connected or indirectly connected through an intermediate medium, and the two elements can be communicated with each other. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Examples

Referring to fig. 1 to 4, fig. 1 is a front view of two molds abutted against each other according to an embodiment of the present invention; FIG. 2 is a side view of a mold provided by an embodiment of the present invention; FIG. 3 is a cross-sectional view of two molds abutting each other according to an embodiment of the present invention; fig. 4 is a schematic structural diagram of the sealing rod 2 and the telescopic rod 3 according to the embodiment of the present invention.

The embodiment provides a shape-variable mold, which comprises a bottom plate 1 and a plurality of sealing rods 2, wherein the side walls of the sealing rods 2 are mutually abutted; one end of any sealing rod 2 is provided with a telescopic rod 3 for driving the sealing rod 2 to move, and the other end of any sealing rod 2 is a free end; the telescopic rods 3 are all arranged on the bottom plate 1.

In actual use, the two sealing rods 2 can be assembled together by a plurality of dies, as shown in fig. 1, the two dies are oppositely arranged and assembled together, and the free ends of the sealing rods 2 of the two dies are abutted against each other. When the model needs to be poured, the size data of the model can be scanned or designed in advance, the length of each telescopic rod 3 is adjusted according to the size data of the model, as shown in fig. 3, the shortened lengths of different telescopic rods 3 are different, and further the outward moving distances of the sealing rods 2 are different, so that a pouring cavity 7 with the same size as the model is formed among a plurality of sealing rods 2, raw materials can be poured into the pouring cavity 7, the raw materials become the model with a fixed shape after being solidified, and at the moment, the model can be taken out. The mold can adjust the shape of the pouring cavity 7 according to models with different sizes, can meet the requirements of personalized production, and is short in pouring time, high in speed and high in material utilization rate.

It should be noted that, when the mold of the present application is used, a sealing structure may be formed by assembling a plurality of molds together, fig. 1 shows that two molds are oppositely disposed and assembled together, and may also be assembled together by other number of molds, and the number is not limited. And the shape of the mold may also be varied.

Alternatively, the side walls of every two adjacent sealing rods 2 of the present embodiment can be connected in a sealing manner through honeycomb seals, so that raw materials are prevented from overflowing. The honeycomb seal is a mechanical term and consists of a seal body and a honeycomb belt, and mainly has the function of preventing the internal and external leakage of working media, lubricating media or cooling media of high-speed running shafting of fluid machines such as steam turbines, internal combustion engines and the like, so that the efficiency of the fluid machines is improved, the energy is saved, the environment is protected, and safe and stable operation is realized. Wherein, honeycomb belt and seal combine still be equipped with the magnetic column on the seal, sealing strip and seal combination are the floating type setting, and one side that seal and honeycomb belt combined still is equipped with sealed tooth, and sealed tooth and sealing strip staggered arrangement set up, at the seal outside lug connection cylinder body, are equipped with the adjusting block in the cylinder body. Adopt honeycomb formula vapor seal can effectively restrain the steam flow in the sealed chamber circumferential flow, when high pressure difference, little clearance are sealed, still can guarantee the stable operation of unit to reduce leakage loss, improve unit efficiency, can adsorb the water droplet with the mesh of honeycomb moreover, thereby effectively dehumidify, protect the blade. The advanced metal honeycomb sealing structure is one of typical sealing structures for realizing blade tip clearance sealing, and is widely applied to design, manufacture and technical transformation of steam turbines, gas turbines and aero-engines. The honeycomb structure is an abradable material, and the gap between the blade tip and the engine brake can be designed to be the minimum value, so that air leakage (steam) is reduced, the efficiency is improved, the energy consumption is reduced, the stability of a rotating system can be improved, and the blade is prevented from generating friction with a casing or a cylinder body to cause danger.

As shown in fig. 1-4, in some embodiments of the present invention, the telescopic rod 3 is an electric push rod.

The electric push rod is also called a linear driver, is a novel linear actuating mechanism mainly composed of a motor push rod, a control device and other mechanisms, and can be considered as an extension of a rotating motor in the aspect of structure. The electric push rod is an electric driving device which converts the rotary motion of a motor into the linear reciprocating motion of the push rod. The device can be used as an execution machine in various simple or complex process flows to realize remote control, centralized control or automatic control. The electric push rod is a novel linear actuating mechanism mainly composed of a motor, a push rod, a control device and other mechanisms, and can realize remote control and centralized control. The electric push rod moves back and forth within a certain range of stroke, the standard stroke of the electric push rod is 100 mm, 150 mm, 200 mm, 250 mm, 300 mm, 350 mm and 400mm, and the special stroke can be designed and customized according to different application conditions. The electric push rod can be designed with different thrusts according to different application loads, the maximum thrust can reach 6000N generally, the no-load running speed is 4 mm-35 mm/s, and the electric push rod takes a 24V/12V direct current permanent magnet motor as a power source to convert the rotary motion of the motor into linear reciprocating motion. And a group of link mechanisms is pushed to complete the switching work of the air door, the valve, the gate, the baffle and the like. The electric push rod is used as the actuating mechanism, so that an air source device and auxiliary equipment required by a pneumatic actuating mechanism can be reduced, and the weight of the actuating mechanism can also be reduced.

According to the invention, the telescopic rod 3 is an electric push rod, so that the moving length of the telescopic rod 3 can be accurately controlled by electric power, and the adjustment is convenient. It should be noted that the telescopic rod 3 is an electric push rod, which is only a preferred embodiment of the present embodiment, and the present invention is not limited thereto, and in other embodiments, the telescopic rod 3 may also be a hydraulic rod or other mechanical transmission telescopic structure.

As shown in fig. 1 to 4, in some embodiments of the present invention, the telescopic rods 3 further include a controller, and the controller is electrically connected to the telescopic rods.

According to the invention, the controller is arranged, and the telescopic rods 3 are electrically connected with the controller, so that the moving distance of each telescopic rod 3 can be conveniently controlled by the controller.

Optionally, the controller of this embodiment may adopt a computer, the complex object structure may be firstly divided into a plurality of directly-fabricated blocks in the computer (an object with a simple structure may be directly formed at one time), the computer controls each telescopic rod 3 to move, and each telescopic rod 3 drives the corresponding sealing rod 2 to move, so as to form the pouring chamber 7.

Alternatively, the controller of the present embodiment may employ various processing chips, such as an AT89S51 chip. The AT89S51 is a low-power-consumption and high-performance CMOS8 bit processor, and a universal 8 bit central processing unit and an ISP Flash storage unit are integrated in a chip, so that received information can be timely and effectively processed. It should be noted that the processor may be an integrated circuit chip having signal processing capability. The processor may be a general purpose processor including a central processing unit, a network processor, etc.; but may also be a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components. And is not limited to the AT89S51 chip in this embodiment.

As shown in fig. 1-4, in some embodiments of the present invention, the sealing rod further comprises a limiting frame 4, and a plurality of sealing rods 2 slide through the limiting frame 4.

According to the invention, the limiting frame 4 is arranged, and the plurality of sealing rods 2 slide through the limiting frame 4, so that the limiting frame 4 is convenient for limiting the sealing rods 2, the sealing rods 2 are mutually attached together, and the sealing performance and the stability of the mold structure during pouring are improved.

As shown in fig. 1 to 4, in some embodiments of the present invention, a connecting rod 5 is disposed between the limiting frame 4 and the bottom plate 1, and the limiting frame 4 and the bottom plate 1 are connected by the connecting rod 5.

According to the invention, the connecting rod 5 is arranged between the limiting frame 4 and the bottom plate 1, the limiting frame 4 is connected with the bottom plate 1 through the connecting rod 5, so that the positions of the limiting frame 4 and the bottom plate 1 are fixed through the connecting rod 5, and the stability of a mold structure during pouring is improved.

As shown in fig. 1-4, in some embodiments of the present invention, a casting channel 6 is provided between the plurality of sealing bars 2.

According to the invention, the pouring channel 6 is arranged among the plurality of sealing rods 2, so that after the pouring cavity 7 is formed, raw materials can be poured into the pouring cavity 7 through the pouring channel 6 for forming, and the filling of the raw materials is facilitated. Alternatively, as shown in fig. 3, the pouring channel 6 of the present embodiment may be formed by removing one sealing rod 2 and telescopic rod 3 to form one pouring channel 6, or may be formed by disposing a pipe between two molds to form the pouring channel 6.

In some embodiments of the invention, the sealing bars 2 are in a lay-flat pattern in cross-section, as shown in fig. 1-4.

A tiling pattern refers to a pattern that can be tiled closely. The planar patterns with the same shape and size are spliced, and the planar patterns are laid into a piece without gaps and overlapping, so that the planar patterns are densely laid, and the planar patterns are also called as inlaying of the planar patterns. According to the invention, the cross section of the sealing rod 2 is a densely paved pattern, so that after the side walls of the sealing rods 2 are mutually abutted, the sealing rods 2 are prevented from mutually rotating, the sealing rods 2 can only mutually slide to adjust the distance, and the stability of the die during operation is improved. And the design of the densely paved pattern ensures that every two adjacent sealing rods 2 are tightly attached, thereby improving the sealing performance.

As shown in fig. 1-4, in some embodiments of the present invention, the sealing rod 2 has a regular hexagonal cross-section.

Because each internal angle of the regular hexagon is 120 degrees, the cross section of the sealing rod 2 is the regular hexagon, so that when the sealing rods 2 are spliced with each other, the joints of the sealing rods can be attached to each other without gaps, and the sealing device is convenient to mount and improve the sealing performance. It should be noted that the cross section of the sealing rod 2 is a regular hexagon, which is only a preferred embodiment of the present embodiment, and the present invention is not limited thereto, and in other embodiments, the cross section of the sealing rod 2 may be a regular direction, a rectangle, etc.

In some embodiments of the invention, as shown in fig. 1-4, the free end of the sealing rod 2 is provided with an arc-shaped groove.

According to the invention, the free end of the sealing rod 2 is provided with the arc-shaped groove, so that the edge of the formed pouring chamber 7 is smooth, and the smoothness of the model is improved conveniently. It should be noted that the arc-shaped groove formed at the free end of the sealing rod 2 is only a preferred embodiment of the present embodiment, and the present invention is not limited thereto, and in other embodiments, the free end of the sealing rod 2 may also be in the shape of a plane, a bulge, etc.

As shown in fig. 1 to 4, in some embodiments of the present invention, the sealing rod 2 is made of a metal material. According to the invention, the sealing rod 2 is made of metal materials, the metal materials have high structural strength and strong pressure resistance, the pouring of the metal model by the pouring molten steel is convenient, the application range is wide, and the service life is long. It should be noted that, the sealing rod 2 is made of a metal material, which is only a preferred embodiment of the present embodiment, and the present invention is not limited thereto, and in other embodiments, the sealing rod 2 may also be made of other materials, such as high temperature resistant ceramics, engineering plastics, etc.

In summary, the embodiment of the present invention provides a shape-variable mold, which includes a bottom plate 1 and a plurality of sealing rods 2, wherein sidewalls of the sealing rods 2 are abutted against each other; one end of any sealing rod 2 is provided with a telescopic rod 3 for driving the sealing rod 2 to move, and the other end of any sealing rod 2 is a free end; the telescopic rods 3 are all arranged on the bottom plate 1.

While the present invention has been described with reference to the preferred embodiments, it is to be understood that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A shape-modifiable mould, characterized in that: the sealing device comprises a bottom plate and a plurality of sealing rods, wherein the side walls of the sealing rods are mutually abutted; one end of any sealing rod is provided with a telescopic rod for driving the sealing rod to move, and the other end of any sealing rod is a free end; the telescopic rods are arranged on the bottom plate.

2. A shape-changing die according to claim 1, wherein: the telescopic rod is an electric push rod.

3. A shape-changing die according to claim 2, wherein: the telescopic rod is electrically connected with the controller.

4. A shape-changing die according to claim 1, wherein: the sealing device also comprises a limiting frame, and the sealing rods slide through the limiting frame.

5. A shape-modifiable mould according to claim 4, characterized in that: the limiting frame is connected with the bottom plate through the connecting rod.

6. A shape-changing die according to claim 1, wherein: and pouring channels are arranged among the sealing rods.

7. A shape-changing die according to claim 1, wherein: the cross section of the sealing rod is a densely paved pattern.

8. A shape-modifiable mould according to claim 7, characterized in that: the cross section of the sealing rod is in a regular hexagon shape.

9. A shape-changing die according to claim 1, wherein: the free end of the sealing rod is provided with an arc-shaped groove.

10. A shape-changing die according to claim 1, wherein: the sealing rod is made of metal materials.