WO2009062361A1

WO2009062361A1 - Shaping mold and shaping assembly for recyclable bio-material

Info

Publication number: WO2009062361A1
Application number: PCT/CN2007/071081
Authority: WO
Inventors: Zhanbin Che
Original assignee: Zhanbin Che
Priority date: 2007-11-16
Filing date: 2007-11-16
Publication date: 2009-05-22

Abstract

A shaping mold for recyclable bio-material comprises a mold body (1) provided with multiple shaping mold cavities (2). The mold body (1) is composed of a support (10) provided with an engagement surface (12). The engagement surface (12) is provided with multiple through holes (11) passing through the support (10). The multiple shaping mold cavities (2) are molded on a shaping assembly (3). The shaping assembly (3) is fixed on the engagement surface (12) of the support (10). The shaping mold cavities (2) of the shaping assembly (3) corresponds to the through holes (11) respectively. The shaping mold is manufactured easily and facilitates the assembly of the shaping assembly.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a molding apparatus for a biomass material that is loosely recyclable, and more particularly to a molding mold for a recyclable biomass material and a molding thereof. Component. BACKGROUND OF THE INVENTION It is well known that renewable biomass materials, such as crop straws, herbs, shrubs, or solid waste generated in wood processing, are an inexhaustible resource. The most traditional use of this resource is as a burning material and a feed. Due to the large size, inconvenient transportation and storage, the original use of biomass materials has long been abandoned. In order to solve the above-mentioned defects of biomass materials, a processing method of pulverizing biomass material and then solidifying into pellets has been invented, which can greatly reduce the volume of biomass materials, thereby solving the problems of large volume and inconvenient transportation and storage.

Due to the regenerative properties of biomass materials, the solidification method of biomass materials has effectively solved the problem of large volume of biomass materials and inconvenient transportation and storage. At present, the curing process of the commonly used biomass material is that the biomass material is pulverized, dried, extruded, and packaged. This method of solidification molding is first applied to the processing of the servo material. With the development and utilization of biomass materials as energy sources, the above solidification molding method is applied to the molding processing of biomass burning materials. However, the above molding method requires heating during drying and extrusion to consume a large amount of electric energy, so the method has not been effectively promoted and utilized for a long period of time.

For the defects of the above-mentioned biomass material processing energy consumption, the inventors have proposed a method of forming a wedge-shaped extruded biomass material by studying the physical properties of biomass materials for a long time, by changing the conventional extrusion molding. The cavity and the extrusion movement mode eliminate the need for heating during the extrusion process, and do not need to be dried for the extruded raw materials, thereby saving a large amount of electric energy and greatly reducing the processing cost of the biomass material. Moreover, the formed combustion material processed by the wedge extrusion molding method has the characteristics of high molding strength and moisture resistance, thereby greatly reducing transportation cost and storage cost.

At present, the particle forming device for biomass material distinguishes roughly a ring-shaped particle forming machine and a flat-die particle forming machine from its structural characteristics. The molding devices of the two biomass materials are widely applied to raw materials. Processing of material feeds. With the development of the utilization of biomass burning materials, this method of wedge extrusion has been applied to the processing of combustion materials. However, because the raw materials of the burning materials are more than the herb materials, they are more hard woody biomass materials, such as shrubs and sawdust. Relative to these harder biomass feedstocks, the wear of the molding cavity of the extrusion molding machine is very severe. Since the molding cavity of the existing flat die or ring die is evenly distributed on the die body, when the individual cavity or part of the cavity is worn and cannot work normally, the force of the entire die will be affected, and the overall die is accelerated. The wear and tear makes the overall mold forming efficiency lower or even makes it not work properly. In order to improve the service life of the forming mold, the current method is to manufacture a mold using a material having a higher strength, such as a titanium alloy. Since the molding cavity is integrally formed on the mold body, the entire mold will be scrapped when the cavity is worn, so that the cost of the molding die is high.

In view of the above disadvantages of the prior art molds, the inventors have proposed a wedge-shaped extrusion molding die for a loose biomass moldable material, a support body thereof and a molding sleeve (International Application No.

PCT/CN2006/001617); the molding die includes a mold body, a molding cavity is distributed on the mold body, and the mold body is composed of a support body having a through hole; the molding cavity is separately formed in the molding The sleeve is embedded in the through hole of the support body. The invention mainly comprises molding a molding cavity on a plurality of molding sleeves, and embedding a plurality of molding sleeves in the through holes of the support body to constitute the extrusion molding die. Since the molding cavity in the invention is formed on the molding sleeve, when the individual molding cavity is worn and cannot work normally, the replacement of the individual molding sleeve can be performed without having to scrap the entire mold; The strength of the molding cavity can be made by using a better material (such as titanium alloy), and the support body is still made of general materials, so as to improve the service life of the mold and effectively reduce the manufacturing cost of the overall mold. And the cost of use. However, the above invention of the present inventors still found some defects in use:

(1) Since a plurality of forming sleeves are uniformly disposed on the plurality of through holes of the support body, it is required to assemble one by one when assembling or disassembling the formed sleeve body, which is time consuming; (2) due to the forming sleeve After the body assembly, there should be no gap between the sleeves to form a smooth surface to make the material move without resistance. Therefore, the assembly quality is higher, which also increases the difficulty of assembly; (3) Because the material enters the extrusion cavity When there is a certain directionality, in order to ensure the mounting direction of the formed sleeve, it is necessary to position the sleeve in the through hole of the support body. Therefore, when processing the through hole of the support body and forming the sleeve, a processing station is required. The positioning structure makes the processing of the through hole and the sleeve more complicated.

In order to reduce the wear of the mold and improve the service life, the manufacturing cost of the mold is effectively reduced. At the same time as the cost of use, the difficulty in mold manufacturing is further reduced, and the molding cavity is facilitated to be assembled, and it is necessary to improve the structure of the above invention.

On the other hand, in the conventional conventional processing method described above, it is generally believed that the longer the material is extruded during the extrusion process, the more the density of the molding is formed, and the easier it is to form. Therefore, in the pellet molding machines, the die hole of the mold has the same cross-sectional shape as the formed pellet, and the depth of the die hole is 40 mm or more, and the depth of the molding hole is usually 60 to 120 mm, and the material passes through the length. However, during the extrusion process, the pressing force is not transmitted to the forming hole. After nearly ten years of research and experiments, the applicant has demonstrated that the force transmission distance of biomass materials is very short, usually less than 10 mm, which is 3 to 5 mm. Therefore, during the forming process, the force conduction is greater than 10 mm. , and then continue to exert force on the density of its molding is not very good. Such a long shaped hole in the prior art does not compress the material as much as is thought, and the molding density of the material in the formed hole does not change much. However, the long forming hole requires a large pressing force to extrude the material, and in the process of continuing the extrusion, it is often necessary to overcome the great friction between the hole wall and the material, which is the existing particle. One of the main reasons for the rapid wear and low life of the mold of the molding machine; it is also the main reason for the large energy consumption of the existing molding machine. SUMMARY OF THE INVENTION An object of the present invention is to provide a molding die for a renewable biomass material and a molding assembly thereof, which can reduce the wear of the mold, improve the service life, reduce the manufacturing cost and the use cost of the mold, and reduce the manufacturing difficulty of the mold. The molding assembly is easy to assemble, thereby further reducing the cost of molding the biomass material.

It is also an object of the present invention to provide a molding die for a renewable biomass material and a molding assembly thereof, which can reduce the energy consumption of solidification molding of biomass materials.

It is also an object of the present invention to provide a molding die for a renewable biomass material and a molding assembly thereof for improving the mechanical properties of the biomass-forming particles, so that the formed particles have excellent joint strength and moisture resistance, It is easy to store when used as a burning material, reducing its storage cost.

The object of the present invention is achieved by a molding die of a renewable biomass material for forming a loose biomass material, the molding die comprising a mold body, and a plurality of molding die distributed on the mold body a cavity, the mold body is composed of a support body, and the support body is provided a joint surface, a plurality of through holes extending through the support body are disposed on the joint surface; the plurality of molding cavities are formed on a molding assembly, and the molding assembly is fixedly disposed on the joint surface of the support body, and the molding is performed. Each of the molding cavities on the assembly is respectively provided with a feeding end and a discharging end, and the discharging ends of the molding cavities are respectively arranged corresponding to the through holes on the supporting body; the biomass material in a loose state is formed from the molding After the feeding end of the molding cavity on the assembly is extruded into the molding cavity, it is led out from the through hole corresponding to the discharge end of the molding cavity.

In a preferred embodiment of the present invention, the support body may have a ring shape, the molding assembly also has a ring shape, and the molding assembly is fixed to the joint surface of the support body to form a ring mold.

In a preferred embodiment of the present invention, the support body may have a flat plate shape, and the molding assembly also has a flat plate shape, and the molding assembly is fixed to the joint surface of the support body to form a planar template.

In a preferred embodiment of the invention, the forming assembly can be constructed from a plurality of strip or plate member combinations.

In a preferred embodiment of the invention, the forming assembly and the support are fixed by a threaded connection.

In a preferred embodiment of the present invention, an engagement fixing structure is disposed between the molding assembly and the support body, and the molding assembly is fixed to the support body by the engagement fixing structure.

In a preferred embodiment of the invention, the molding cavities are evenly arranged on the forming assembly.

In a preferred embodiment of the present invention, the cross-sectional area of the discharge end of the molding cavity is smaller than the cross-sectional area of the through hole of the support.

In a preferred embodiment of the invention, the forming assembly is machined using a precision casting process. In a preferred embodiment of the invention, the molding cavity on the molding assembly is integrally formed with the molding assembly by a precision casting method.

In a preferred embodiment of the invention, the forming cavity on the forming assembly is integrally formed with the forming assembly by a mechanical processing method.

In a preferred embodiment of the invention, the forming assembly can be made of a ceramic material. In a preferred embodiment of the invention, the forming assembly can be made of a titanium alloy material. The object of the present invention can also be achieved by a molding assembly for a molding die of a renewable biomass material, wherein the molding assembly is formed with a plurality of molding cavities, and the molding assembly is fixedly disposed on the bonding surface of the mold support body. Above, each molding cavity on the molding assembly is respectively provided with a feeding end and a feeding end At the discharge end, the discharge ends of the molding cavities are respectively disposed corresponding to the through holes on the support body.

In a preferred embodiment of the invention, the forming assembly is annular, and the forming assembly is fixed to the joint surface of the annular support to form a ring mold.

In a preferred embodiment of the invention, the forming assembly is attached to the joining surface of the flat shaped support to form a planar form.

In a preferred embodiment of the present invention, the molding cavity is formed by an extrusion cavity whose cross-section is tapered toward the discharge end, and the bottom of the extrusion cavity is provided with a molding outlet, and the shape of the molding outlet Corresponding to the section of the product after the material has been formed, the material is extruded in the tapered extrusion chamber to a sufficient forming density and extruded from the forming outlet.

In a preferred embodiment of the present invention, the forming outlet of the bottom of the pressing chamber is offsetly disposed on one side of the bottom of the pressing chamber, and the material enters the cross section by the side corresponding to the offset direction of the forming outlet. The contracted extrusion chamber is squeezed.

In a preferred embodiment of the invention, the depth of the extrusion chamber having a tapered cross section on the molding cavity is less than or equal to 10.

In a preferred embodiment of the invention, the forming outlet of the forming cavity may be joined with a section of the forming section corresponding to the forming outlet.

In a preferred embodiment of the invention, the molding cavity can be constructed using two coaxial stepped holes.

In a preferred embodiment of the present invention, the forming outlet of the molding cavity may be connected to an enlarged section, and the enlarged section has an outlet area larger than the forming outlet area.

In a preferred embodiment of the invention, the shape of the forming outlet may also correspond to the cross-sectional shape of the extrusion chamber.

In a preferred embodiment of the invention, the extrusion cavity cross-sectional shape may be circular, rectangular, elliptical, or other asymmetrical shape.

In a preferred embodiment of the present invention, the extrusion cavity has a circular cross-sectional shape, and the molding outlet is also circular. The axis of the molding outlet is parallel to and spaced apart from the axis of the extrusion cavity section. The pitch is less than or equal to the radius of the circular shaped exit.

In a preferred embodiment of the present invention, the molding cavity may be staggered in two axes. Stepped hole formation.

In a preferred embodiment of the invention, the thickness of the forming assembly is equal to the depth of the extrusion chamber.

In the molding die of the present invention, a molding assembly is fixedly disposed on a support body of the mold body, and a molding cavity is formed on the molding component. When the molding cavity is worn and can no longer be used, the molding component can be removed from the molding die. The support body is removed, and the new molding assembly is replaced, which can make the mold support body reuse and improve the life of the extrusion molding die. Since the molding component provided with the molding cavity is assembled with the support body (not In one piece, therefore, the molding assembly can be made of a better material, and the support body is made of a general material, so that the cost of the integral molding die and the cost of the extrusion molding process can be reduced, and the present invention can also avoid the structure as described above. In the case where the plurality of molding sleeves are respectively mounted on the through holes of the support body, the assembly is difficult and time consuming, and the assembly of the molding assembly is simpler and more convenient.

Further, the molding assembly of the present invention can also be processed by a method of precision casting and integral molding, which can greatly reduce the manufacturing cost of the mold and improve the processing precision of the mold.

The molding assembly with a molding cavity in the present invention can also be composed of a smooth wear-resistant material such as ceramics, which not only reduces the manufacturing cost thereof, but also greatly reduces the energy consumption in the extrusion process.

In the present invention, according to the short force transmission distance of the biomass material, the molding cavity is composed only of a shrinking extrusion cavity having a depth of not more than 10 mm, and the extrusion distance of the material forming is greatly shortened, thereby maximizing The ground reduces its energy consumption in extrusion.

The molding cavity of the molding die of the invention is composed of a circular molding die and a reaming groove which are parallel to two axes, so that the structure is simple and the processing is convenient, and the processing of the molding cavity can be avoided by using the special-shaped processing method. , can reduce the manufacturing cost of the molding die.

The extrusion molding die of the present invention can be applied to servo processing as well as to biomass combustion materials. In the machining process, the cavity can be composed of only one extrusion chamber with shrinkage contraction, or a small molding section is connected at the outlet end of the molding to minimize the energy consumption required, and at the same time The ground reduces the wear of the mold, thereby reducing the cost of using the mold. Further, in the present invention, the structure in which the support body and the molding assembly are assembled is used, and even if the molding cavity on the molding assembly is damaged by abrasion, only the molding assembly is replaced, and the entire mold is discarded.

Further, since the molding die can be omitted on the molding die of the present invention, or the molding section can be compressed to a minimum, the sheet-like material is laminated into the extrusion cavity of the mold, and then extruded, and directly formed through the molding. The mouth molding extrusion greatly reduces the length of the material passing through the forming mold, so that it is compatible with the characteristics of the loose conductive material with a small force transmission distance, and reduces the material under the premise of ensuring the molding quality. The length and time of extrusion friction in the forming mold can greatly reduce the extrusion resistance of the material, and only a small positive pressure can be used to extrude the material, thereby reducing the energy consumption of the material through the molding cavity. Reduce the processing costs of biomass materials. Experiments have shown that the energy consumption of the molded article using the molding die of the present invention is reduced by more than 20% compared with the consumption of the conventional molding die. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing the structure of a molding die of the present invention.

Figure 2 is a schematic view showing the structure of another molding die of the present invention.

Fig. 3 is a schematic view showing the structure of another molding die of the present invention.

Figure 4: A schematic view of the structure of the molding assembly of the present invention.

Figure 5 is a schematic view showing the structure of a molding cavity of the present invention.

Figure 6 is a schematic view showing a connection structure of a molding assembly and a support of the present invention.

Figure 7: Schematic diagram of another connection structure of the molding assembly and the support of the present invention.

Figure 8 and Figure 9 are schematic views showing the structure of a planar mold in the present invention.

Figure 10 and Figure 11 are schematic views showing the structure of another molding cavity of the present invention.

12 to FIG. 15 are schematic views showing the structure of still another molding cavity of the present invention.

Figure 16: Schematic diagram of another planar mold in the present invention.

17 to FIG. 19: FIG. 19 is a schematic structural view of another molding cavity of the present invention. DETAILED DESCRIPTION OF THE INVENTION Example 1

As shown in FIG. 1 and FIG. 2, a molding die of a renewable biomass material according to the present invention, the molding die includes a die body 1 , and a plurality of molding cavity 2 are distributed on the die body 1 ( Only a part of the molding cavity 2) is shown. The mold body 1 is composed of a support body 10, and the support body 10 is provided with a joint surface 12, and a plurality of through holes 11 penetrating through the support body are distributed on the joint surface 12 (only partial through holes 11 are shown in the figure) The plurality of molding cavities 2 are formed on a molding assembly 3, and the plurality of molding cavities 2 are evenly arranged on the molding assembly 3, and the molding assembly 3 is fixed The forming cavity 2 of the forming component 3 is respectively provided with a feeding end 23 and a discharging end 24, and the discharging ends 24 of the forming cavities are respectively supported and supported. The through holes 11 in the body are correspondingly disposed; the biomass material in a loose state is extruded from the molding cavity feeding end 23 of the molding assembly 3 into the molding cavity 2, and is formed by the support body 10 and the molding cavity. The through hole 11 corresponding to the discharge end 23 is led out.

In the molding die of the present invention, the molding assembly 3 is fixedly disposed on the support body 10 of the mold body 1. The molding assembly 3 is formed with a plurality of molding cavities 2, and when the molding cavity 2 is worn out and can no longer be used, The molding assembly 3 can be detached from the support body 10, and the new molding assembly 3 can be replaced, so that the mold support body 10 can be reused, the life of the extrusion molding die can be improved, and the cost of the overall molding die can be reduced. And the cost of extrusion molding, and at the same time, avoiding the assembly difficulties and time consuming problems caused by mounting a plurality of molding sleeves on the through holes of the support body as in the foregoing structure, and assembling the molding assembly more. easy and convenient.

Further, as shown in FIG. 1 and FIG. 2, the support body 10 is provided with a joint surface 12 on which the molding assembly 3 can be fixed, and a plurality of through holes 11 penetrating the support body 10 are distributed on the joint surface 12, and the forming is performed. The molding cavities 2 on the assembly 3 are respectively disposed corresponding to the through holes 11 on the support. Such a structural design overcomes the deficiencies of the prior art, and the mold body (ie, the support body 10) is changed from a wearable member to a durable member; since the support body 10 is not directly pressed by the material, it can be used. Commonly used materials are produced to save production costs. In the extrusion molding process, after the molding cavity 2 is worn, the molding unit 3 provided with the cavity 2 is removed from the support body 10, and the new molding component 3 is replaced, so that the overall mold can be continuously used; The structure makes the replacement of the forming assembly 3 simple and convenient and saves time.

In this embodiment, as shown in FIG. 1 and FIG. 2, the support body 10 may have a ring shape, and the molding assembly 3 is also annular. The molding assembly 3 is fixed to the joint surface 12 of the support body to form the ring mold. . The inner wall surface of the support body 10 is a joint surface 12, and the molding assembly 3 is fixedly coupled to the support body 10 from the inner wall surface of the annular support body 10. Of course, the joint surface 12 can also be the outer wall surface of the support body 10, and the molding assembly 3 can also be fixed in combination with the outer wall surface of the annular support body 10 (as shown in FIG. 3).

In this embodiment, the through hole 11 of the support body may have a circular cross section, or may be a rectangle, an ellipse or other asymmetrical polygon.

As shown in FIG. 1 and FIG. 2, the molding assembly 3 of the present invention is a member that can be fixedly coupled to the joint surface of the support body 10. The molding assembly 3 is formed with a plurality of molding cavities 2, Place Each of the molding cavities 2 on the molding assembly 3 is respectively provided with a feeding end 23 and a discharging end 24, and the discharging ends 24 of the molding cavities are respectively disposed corresponding to the through holes 11 on the supporting body.

As shown in Fig. 4, the molding assembly 3 may be composed of a plurality of strip-like (or plate-like) members 33 in combination. As shown in Fig. 2 and Fig. 5, the molding cavity 2 is constituted by a contraction-shaped pressing chamber 20, and a molding outlet 22 is provided at the bottom of the pressing chamber 20. The inventors have conducted a large number of tests to prove that the material can be formed into a shrinking extrusion chamber 20 having a depth of not more than 10 mm to obtain a sufficient material forming density, and is directly extruded from the forming outlet 22 to obtain a desired shape. After the material is extruded from the molding outlet 22, there is no friction between the molding cavity 2 and the molding cavity 2, thereby minimizing the energy consumption required, and greatly reducing the wear of the mold, thereby improving the use of the mold. cost. In the present embodiment, the diameter of the molding outlet 22 (discharge end) is smaller than the diameter of the through hole 11 of the support.

As shown in FIG. 6, the molding assembly 3 and the support body 10 can be fixed by screwing; that is, a through hole 13 is provided on the support body 10, and a threaded hole 31 is provided on the molding assembly 3 corresponding to the through hole 13, by a screw (not shown) It is shown that the perforation 13 is penetrated and screwed to the threaded hole 31 to tightly connect the forming assembly 3 and the support 10. In this embodiment, the plurality of through holes 13 and the threaded holes 31 may be oppositely disposed to make the connection between the two more stable. Alternatively, the perforations may be provided on the molding assembly 3, and the threaded holes are provided on the support 10.

Further, an engagement fixing structure may be disposed between the molding assembly 3 and the support body 10, and the molding assembly 3 is fixed to the support body 10 by the engagement fixing structure. As shown in Fig. 7, a strip-shaped recess 14 is provided on the joint surface 12 of the support body 10, and a slide rail 32 is provided on the molding assembly 3, and the slide rail 32 is fitted and fixed correspondingly to the recess 14 when assembled.

In the present embodiment, the molding assembly 3 is fixedly disposed on the support body 10 by the above simple connection method, and the cumbersome process of processing the positioning structure on each of the molding sleeve body and the support body in the foregoing structure is omitted, so that further Reduce the manufacturing difficulty and manufacturing cost of the mold.

The molding assembly 3 of the present invention can be processed by a precision casting method; the molding cavity 2 of the molding assembly 3 can also be subjected to a three-body molding process using a precision casting method and a molding assembly in order to reduce the manufacturing cost of the molding die. Further, the molding assembly 3 of the present invention may be made of a ceramic material in addition to a commonly used mold material; in order to improve the strength and wear resistance of the molding cavity 2, the molding assembly 3 may also be made of a titanium alloy material.

According to the above structure, the invention can not only improve the service life of the entire extrusion die, but also reduce the manufacturing cost and the use cost of the die, and can make the process of the die simple and convenient, and the assembly thereof is also very convenient. Easy.

Example 2

The structure and the principle of the embodiment are basically the same as those of the first embodiment. The difference is that the support body 10 has a flat shape as shown in FIG. 8 and FIG. 9. The molding assembly 3 also has a flat plate shape, and the molding assembly 3 is fixed to the support body. The planar template is formed after the bonding surface 12.

In this embodiment, a plurality of through holes 11 penetrating the support body are also distributed on the joint surface 12 of the support body 10; the plurality of molding cavities 2 are also formed on a molding assembly 3, and the molding is performed. The assembly 3 is fixed to the joint surface 12 of the support body, and the molding cavities 2 on the molding assembly 3 are respectively disposed corresponding to the through holes 11 on the support body. The molding assembly 3 and the support body 10 can be fixed by screw connection; as shown in FIG. 8 and FIG. 9, the through hole 13 is disposed on the support body 10, and the threaded hole 31 is correspondingly arranged on the molding assembly 3, and the screw is provided. Not shown) Connect the two closely. The perforations 13 and the threaded holes 31 may be disposed opposite each other to make the connection of the two more stable. Alternatively, the perforations may be provided on the molding assembly 3, and the threaded holes are provided on the support 10.

An engagement fixing structure (not shown) may be disposed between the molding assembly 3 and the support body 10. Other structures, working principles, and advantageous effects of the embodiment are the same as those of the first embodiment, and will not be described again.

Example 3

This embodiment is basically the same as the structure and principle of the embodiment 1. The molding die of the present invention can be applied to the processing of biomass burning materials. Since the molding materials used for molding the combustion materials are hard, before the molding materials enter the molding cavity, the first one is A shearing force is applied to the wedge-shaped extrusion cavity. Under the shearing force, the granular material in the wedge-shaped extrusion cavity is crushed and stretched into a sheet shape, and the volume of the wedge-shaped extrusion cavity is continuously reduced. The material is laminated into the molding cavity of the molding die; in order to further the material which has been milled and stretched into a sheet shape in the wedge extrusion cavity, is further extruded in the molding cavity of the molding die, The density between each layer is continuously increased, and a part of the particles are deformed to enter the gap between the sheet-like particles to form a state of up-and-down engagement to form a molded product superior to other products, and thus, in this embodiment, 6, 7, 10, and 11, the molding cavity 2 of the molding die is designed such that the molding outlet 22 is offsetly disposed on the bottom side of the extrusion chamber 20 having a tapered cross section. A long smooth slope is formed between the inlet end 21 and the molding outlet 22. In this embodiment, the depth b of the extrusion chamber 20 whose cross-section is tapered is less than or equal to 10, and the material is offset from the molding outlet 22. The material inlet end 21 of the corresponding side is squeezed into the extrusion chamber 20 whose cross section is tapered, It is then extruded from the forming outlet 22 to give the shaped product a specific structural model.

It has been proved that after the material is extruded through the die 20, sufficient density can be achieved without forming a forming section at the end of the forming outlet 22. Therefore, the forming section of the present invention omits the forming section, and the thickness of the forming component 3 It can be equal to the depth of the tapered extrusion chamber 20, and after the material enters the extrusion cavity 20 of the mold, it is directly extruded through the molding outlet 22, thereby greatly reducing the length of the material passing through the molding die. It adapts to the characteristics that the loose conductive biomass material has a small force transmission distance, and reduces the extrusion friction length and time of the material in the forming mold under the premise of ensuring the molding quality, thereby greatly reducing the material extrusion. With the resistance, only a small positive pressure can be used to extrude the material, thereby reducing the energy consumption of the material through the molding cavity and reducing the processing cost of the biomass material product.

Other structures, working principles, and advantageous effects of the embodiment are the same as those of the first embodiment, and will not be described again.

Example 4

The basic principle and structure of the embodiment are the same as those of the embodiment 3. In this embodiment, as shown in FIG. 10 and FIG. 11, the cross-sectional shape of the tapered extrusion cavity 20 of the molding cavity 2 provided on the molding assembly 3 is shown. In the case of a circle, the forming outlet 22 is also circular, and the axis 221 of the forming outlet 22 is parallel and spaced apart from the axis 201 of the section of the extrusion chamber 20, the spacing a of which is less than or equal to the radius of the circular forming outlet 22.

The above structural design facilitates the machining of the molding cavity 2 by machining. When the molding cavity 2 is processed, a through hole can be vertically processed on the molding assembly 3 by using a milling cutter (or other cutting tool) to form a Forming the outlet 22, replacing a reaming cutter with a suitable lead angle and shifting its machining axis to one side, and controlling the appropriate offset (the offset is not greater than the radius of the forming outlet 22) for reaming To form the tapered extrusion chamber 20. Since the molding cavity 2 of the present invention is processed without using a special-shaped machining method, it can be completed only by milling or drilling and with the control axis offset, thereby simplifying the processing of the molding cavity 2 and facilitating the processing. Therefore, the processing cost of the mold can be greatly reduced.

In the present embodiment, as shown in FIGS. 12 and 13, the axis 201 of the section of the tapered extrusion chamber 20 in the molding cavity 2 is offset from the axis 221 of the molding die 22, and the tapered extrusion chamber 20 is side-to-side. The edge is tangent to the edge of the forming die 22, i.e., the side defines a vertical side wall 222. In this manner, the material entering the forming cavity 2 can be pressed inwardly by the resistance of the vertical side wall 222 inwardly. , so that the material does not overflow from the side, the extrusion effect is better. Of course, as shown in Figures 14 and 15, the tapering One side of the extrusion chamber 20 may also be located outside or within the edge of the molding die 22 to constitute the molding cavity 2, and the same effect as described above can also be achieved in this manner.

Further, the tapered extrusion cavity 20 may have a rectangular, elliptical or other asymmetrical shape, and the shape of the forming outlet 22 may be the same as or different from the cross-sectional shape of the tapered extrusion cavity 20. The molding cavity 2 of the above shapes can be formed by a three-piece forming process using a precision casting method and a molding assembly.

Further, in this embodiment, since the molding cavity 2 is designed such that the molding outlet 21 is offsetly disposed on the side of the bottom portion of the extrusion chamber 20 whose cross-section is tapered, a ratio is formed between the material inlet end 21 and the molding outlet 22. On the long smooth slope, the material has to be extruded from the side of the smooth slope into the molding cavity 2 and then extruded from the forming outlet 22, so that the side with the smooth slope constitutes the material introduction side. The molding assembly 3 is fixed to the support body 10, and the support body 10 has a certain direction of rotation. Therefore, the molding assembly 3 should be matched with the rotation direction of the support body 10 during assembly so that the material enters from the smooth slope side. The molding cavity 2 is pressed (as shown in Figs. 6 and 16).

Other structures, working principles, and advantageous effects of the embodiment are the same as those of the third embodiment, and will not be further described herein.

Example 5

This embodiment is basically the same as the foregoing embodiments, except that, as shown in FIG. 13, the end portion of the forming outlet 22 is provided with an enlarged section 23, and the enlarged area of the enlarged section 23 is larger than the area of the forming outlet 22. The enlarged section 23 may be a cylindrical enlarged section or a dilated enlarged section (illustrated as a tapered enlarged section).

Further, as shown in FIG. 17, a small section 24 may be extended at the end of the forming outlet 22 according to the actual extrusion molding; and the enlarged section 23 may be further provided at the rear of the forming section 24 (eg Figure 15).

In order to make the molding cavity 2 of the mold easier to process, in the present embodiment, the molding cavity 2 can be composed of two coaxial stepped holes (as shown in FIG. 18); two different axes can also be used ( Parallel holes of two axes that are staggered in parallel (as shown in Figure 19).

Other structures, working principles, and advantageous effects of the present embodiment are the same as those of the foregoing embodiments, and are not described herein again.

The above description is only illustrative of the specific embodiments of the invention and is not intended to limit the scope of the invention. Equivalent changes and modifications made by those skilled in the art without departing from the spirit and scope of the invention are intended to be within the scope of the invention.

Claims

Claim

A molding die for a renewable biomass material for forming a loose biomass material, the molding die comprising a mold body, and a plurality of molding cavities distributed on the mold body, wherein: The mold body is composed of a support body, the support body is provided with a joint surface, and a plurality of through holes penetrating through the support body are distributed on the joint surface; the plurality of molding cavities are formed on a molding assembly, and the molding is performed. The assembly is fixedly disposed on the bonding surface of the support body, and each molding cavity on the molding assembly is respectively provided with a feeding end and a discharging end, and the discharging ends of the molding cavities respectively communicate with the supporting body The holes are correspondingly arranged; the biomass material in a loose state is extruded from the feeding cavity of the molding cavity on the molding assembly into the molding cavity, and then is led out from the through hole corresponding to the discharge end of the molding cavity.

2 . The molding die of a renewable biomass material according to claim 1 , wherein: the support body has a ring shape, the molding component is also annular, and the molding component is fixed to the joint surface of the support body to form a ring die. .

3 . The molding die of a renewable biomass material according to claim 1 , wherein: the support body has a flat plate shape, and the molding component is also in the shape of a flat plate, and the molded component is fixed on the joint surface of the support body. Flat template.

A molding die for a renewable biomass material according to claim 1, 2 or 3, wherein: said molding assembly is composed of a plurality of strip-like or plate-like members.

The molding die for a renewable biomass material according to claim 1, 2 or 3, wherein the molding assembly and the support body are fixed by screwing.

The molding die for a renewable biomass material according to claim 1, 2 or 3, wherein: the molding assembly and the support body are provided with an engagement fixing structure, and the engagement fixing structure The molding assembly is fixed to the support.

The molding die of a renewable biomass material according to claim 1, wherein the molding cavity is uniformly arranged on the molding assembly.

The molding die for a renewable biomass material according to claim 1, wherein: a cross-sectional area of the discharge end of the molding cavity is smaller than a cross-sectional area of the through hole of the support.

The molding die for a renewable biomass material according to claim 1, wherein the molding assembly is processed by a casting method.

10. A molding die for a renewable biomass material according to claim 1 wherein: The molding cavity on the molding assembly is integrally formed with the molding assembly by a precision casting method.

11. The molding die of a renewable biomass material according to claim 1, wherein: the molding cavity on the molding component is integrally formed with a molding component by a machining method.

The molding die of a renewable biomass material according to claim 1, wherein the molding component is made of a ceramic material.

13. The molding die of a renewable biomass material according to claim 1, wherein: said molding component is made of a titanium alloy material.

14. A molding assembly for a molding die for a renewable biomass material according to claim 1, wherein: said molding assembly is formed with a plurality of molding cavities, and the molding assembly is fixedly disposed on the mold support Each of the molding cavities on the molding assembly is respectively provided with a feeding end and a discharging end, and the discharging ends of the molding cavities are respectively disposed corresponding to the through holes on the supporting body.

The molding assembly according to claim 14, wherein: the molding assembly has a ring shape, and the molding assembly is fixed to the joint surface of the annular support body to form a ring mold.

The molding assembly according to claim 14, wherein: the molding assembly has a flat shape, and the molding assembly is fixed to the joint surface of the flat-shaped support body to form a flat template.

17. A forming assembly according to claim 14, 15 or 16, wherein: said forming assembly is comprised of a plurality of strip or plate members.

A molding assembly according to claim 14, 15 or 16, wherein: said molding member and said support body are fixed by screwing.

The molding assembly according to claim 14, 15 or 16, wherein: the molding assembly and the support body are provided with an engagement fixing structure, and the molding assembly is fixed on the support body by the engagement fixing structure. .

The molding assembly according to claim 14, wherein: said molding cavity is uniformly arranged on the molding assembly.

The molding assembly according to claim 14, wherein the molding assembly is processed by a casting method.

22. The molding assembly of claim 14, wherein: the molding cavity on the molding assembly is integrally formed with the molding assembly by a precision casting method.

23. The molding assembly of claim 14, wherein: the molding cavity on the molding assembly is integrally formed with the molding assembly by a machining method.

24. A forming assembly according to claim 14 wherein: said forming assembly is made of a ceramic material.

The molding assembly according to claim 14, wherein: the molding assembly is made of a titanium alloy material.

The molding assembly according to claim 14, wherein: the molding cavity is formed by an extrusion cavity whose cross-section is tapered toward the discharge end, and the bottom of the extrusion cavity is provided with a molding outlet. The shape of the shaped outlet corresponds to the cross-section of the product after the material is formed, and the material is extruded to a sufficient forming density in the tapered extrusion chamber and extruded from the forming outlet.

The molding assembly according to claim 26, wherein: the forming outlet of the bottom of the pressing chamber is offset from one side of the bottom of the pressing chamber, and the material is offset by a direction corresponding to the forming outlet. The side of the extrusion chamber that tapers into the cross section is squeezed.

The molding assembly according to claim 26, wherein the extrusion chamber having a tapered cross section on the molding cavity has a depth of 10 mm or less.

29. A forming assembly according to claim 26, wherein: said forming cavity of said forming cavity is connectable with a section of forming corresponding to the forming outlet.

The molding assembly according to claim 26, wherein: said molding cavity is formed by two coaxial stepped holes.

The molding assembly according to claim 26, wherein: the forming outlet of the molding cavity is connectable with an enlarged section, and the enlarged section has an outlet area larger than the forming outlet area.

The molding assembly according to claim 26, wherein: the shape of the molding outlet is also corresponding to the cross-sectional shape of the extrusion chamber.

33. The forming assembly of claim 26, wherein: said extrusion cavity has a cross-sectional shape that is circular, rectangular, elliptical, or other asymmetrical shape.

The molding assembly according to claim 26, wherein: the extrusion cavity has a circular cross-sectional shape, and the molding outlet is also circular, and the axis of the molding outlet is parallel to and spaced from the axis of the extrusion cavity section. The distance between the two axes is less than or equal to the radius of the circular forming outlet.

The molding assembly according to claim 26, wherein: the molding cavity is formed by a stepped hole in which two axes are staggered in parallel.

36. A forming assembly according to claim 26 wherein: the thickness of the forming assembly is equal to the depth of the extrusion chamber.