CN201366801Y

CN201366801Y - Forming die of reproduceable biomass material

Info

Publication number: CN201366801Y
Application number: CNU2009200072574U
Authority: CN
Inventors: 车战斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-11-14
Filing date: 2009-02-06
Publication date: 2009-12-23
Anticipated expiration: 2019-02-06

Abstract

The utility model relates to a forming die of a reproduceable biomass material, which comprises a forming component and a supporting body, wherein the forming component is provided with a plurality of forming die cavities; the supporting body is provided with a joint surface fixedly provided with the forming component; the joint surface is distributed with a plurality of through holes passing through the supporting body; the forming die cavities of the forming component are respectively arranged corresponding to the through holes; and a plurality of first cooling channels which are communicated with part of the through holes in the supporting body are arranged at the combined part of the forming component and the supporting body along the joint surface. In the forming die, as the plurality of cooling channels which are communicated with part of the through holes in the supporting body are arranged, when using the forming die, air or other cooling gases are led into each cooling channel to lead the air to flow between the ports of the cooling channels and the through holes, thus leading the heat of the forming die, which is generated by the friction, to be taken away by the flowing cooling air, preventing the temperature of the forming die from being too high, and leading the extrusion forming to be carried out smoothly.

Description

Forming die of renewable biomass material

Technical Field

The present invention relates to a forming device for loose renewable biomass materials, and more particularly to a forming mold for renewable biomass materials.

Background

It is well known that renewable biomass materials, such as crop straws, herbaceous plants, shrubs, or solid waste produced in wood processing, are an inexhaustible resource. And the most traditional use of this resource is as a combustion material and feed. Due to the defects of large volume, inconvenience in transportation and storage and the like, the original use mode of the biomass material has been abandoned by people for a long time. In order to solve the above-mentioned defects of the biomass material, people invent a processing method for crushing the biomass material and then solidifying the biomass material into particles, which can greatly reduce the volume of the biomass material, thereby solving the problems of large volume and inconvenient transportation and storage.

The existing particle forming device for biomass materials is roughly divided into a ring mould particle forming machine and a flat mould particle forming machine according to the structural characteristics. The two biomass material forming devices are applied to the processing of biomass feed in a large amount. With the development of biomass combustion material utilization, a wedge extrusion method is applied to the processing of the combustion material. But the raw material of the burning material is more hard woody biomass materials such as shrub, wood chips and the like besides the herbaceous material. The wear on the forming die cavity of the extrusion forming machine is very severe compared to these harder biomass materials. Because the forming die cavities of the existing flat die or ring die are uniformly distributed on the die body, when a single die cavity or a part of the die cavities are worn and can not work normally, the stress condition of the whole die is influenced, the wear of the whole die is accelerated, and the forming efficiency of the whole die is reduced or even the whole die can not work normally. In order to increase the service life of the forming die, the method adopted at present is to manufacture the die from a material with higher strength, such as titanium alloy. Because the molding die cavity is integrally molded on the die body, the whole die is scrapped after the die cavity is worn, so that the cost of the molding die is higher.

In view of the above disadvantages of the existing mold, the present inventors propose a molding mold and a molding assembly thereof for renewable biomass materials (international application number PCT/CN 2007/071081); the forming die consists of a forming component and a supporting body; the forming assembly is provided with a plurality of forming die cavities, the support body is provided with a combining surface, a plurality of through holes penetrating through the support body are distributed on the combining surface, the forming assembly is fixedly arranged on the combining surface of the support body, and the discharge end of each forming die cavity is arranged corresponding to the through holes on the support body; the invention mainly adopts the technical scheme that a forming assembly is fixedly arranged on a support body, a plurality of forming die cavities are formed in the forming assembly, when the forming die cavities are worn and can not be used any more, the forming assembly can be detached from the support body and replaced with a new forming assembly for continuous use, so that the die support body can be used repeatedly, and the service life of an extrusion forming die is prolonged; the forming assembly with the forming die cavity is assembled with the support body into a whole, so that the forming assembly can be made of a better material, and the support body is made of a common material, so that the cost of the integral forming die and the cost of extrusion forming processing can be reduced.

However, when the forming die proposed by the inventor is used, the biomass material continuously rubs with the forming die cavity in the extrusion forming process, so that the temperature of the forming die is continuously increased, and the normal operation of the extrusion forming process is influenced; the defects are more obvious particularly when the solar water heater is used in regions with higher temperature and humidity in south China. The temperature of the forming die is too high, and the extrusion forming processing is mainly influenced from the following aspects:

1. the forming die transfers heat to the crushed biomass material and dries the biomass material, and the dried raw material easily blocks a forming die cavity to cause 'dead holes' during overstock forming; in severe cases, the entire molding assembly is rendered unusable.

2. The superheated forming die can generate partial steam when drying the biomass material, and extruded particles are expanded and easily broken because the steam is mixed into the raw materials during extrusion forming, so that the biomass material cannot be solidified and formed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can palingenetic biomass material's forming die is equipped with a plurality of cooling channel on this forming die, can effectively reduce forming die's temperature at the extrusion in-process, makes the extrusion processing go on smoothly to improve production efficiency.

An object of the utility model is to provide a can palingenetic biomass material's forming die to reduce the wearing and tearing of mould, improve life, reduce the manufacturing cost and the use cost of mould, thereby further reduce biomass material shaping processing cost.

The utility model aims at realizing the forming die of the renewable biomass material, which is used for forming the loose biomass material and consists of a forming component and a supporting body; the forming assembly is provided with a plurality of forming die cavities, the supporting body is provided with a combining surface, a plurality of through holes penetrating through the supporting body are distributed on the combining surface, the forming assembly is fixedly arranged on the combining surface of the supporting body, each forming die cavity on the forming assembly is respectively provided with a feeding end and a discharging end, and the discharging end of each forming die cavity is respectively arranged corresponding to the through holes on the supporting body; the biomass material in a loose state enters the forming die cavity from the feeding end of the forming die cavity on the forming assembly, is extruded and formed, and is guided out from the through hole corresponding to the discharging end of the forming die cavity on the support body; and a plurality of first cooling channels are arranged at the joint part of the forming assembly and the support body and along the joint surface, and each first cooling channel is communicated with part of through holes on the support body.

In a preferred embodiment of the present invention, the joint portion between the forming assembly and the supporting body is further provided with at least one second cooling channel communicated with the plurality of first cooling channels.

In a preferred embodiment of the present invention, the first cooling channel is disposed on one side of the forming assembly at the junction surface of the forming assembly and the supporting body.

In a preferred embodiment of the present invention, the second cooling channel is also disposed on a side of the forming assembly opposite to the bonding surface of the forming assembly and the supporting body. In a preferred embodiment of the present invention, the cooling channel is disposed on a side of the supporting body of the junction surface of the forming assembly and the supporting body.

In a preferred embodiment of the present invention, the second cooling channel is also disposed on a side of the support body of the junction surface of the forming assembly and the support body.

In a preferred embodiment of the present invention, the cooling channel spans two sides of a junction surface between the forming assembly and the support body.

In a preferred embodiment of the present invention, the second cooling channel is also disposed across both sides of a junction surface between the forming assembly and the support body.

In a preferred embodiment of the present invention, the port of each first cooling channel is communicated with an air tank; a gas source provides cooling gas into the gas box.

In a preferred embodiment of the present invention, the supporting body is in a shape of a circular tube, the forming assembly is also in a shape of a circular tube, and the forming assembly is fixed to the joint surface of the supporting body to form a ring mold; the first cooling channel is arranged in a strip shape parallel to each other along the axial direction of the supporting body and the forming component, and the second cooling channel is arranged in a ring shape along the circumferential direction of the supporting body and the forming component.

In a preferred embodiment of the present invention, the air box is in a ring-groove shape, and a bottom surface of the ring-shaped air box is provided with a ring-shaped opening, the air box is disposed at one end of the ring mold, and the ring-shaped opening corresponds to the port of each first cooling channel.

In a preferred embodiment of the present invention, the supporting body is a flat plate, the forming assembly is also a flat plate, and the forming assembly is fixed to the joint surface of the supporting body to form a flat template; the first cooling passages are radially disposed about a center of rotation of the support body and the shaping assembly, and the second cooling passages are annularly disposed about a center of rotation of the support body and the shaping assembly.

In a preferred embodiment of the present invention, the air box is in an annular groove shape, and an annular opening is disposed on an inner annular surface of the annular air box, the annular air box is disposed around the planar template, and the annular opening corresponds to the port of each first cooling channel.

In a preferred embodiment of the present invention, the molding cavities are uniformly arranged on the molding assembly; the cross-sectional area of the discharge end of the molding die cavity is smaller than that of the through hole of the support body.

The utility model discloses an among the forming die, owing to be equipped with a plurality ofly with the cooling channel of the partial through-hole intercommunication on the supporter, can let in air or other cooling gas in each cooling channel in the forming die use, make the air form between cooling channel's port and through-hole and flow to make forming die take away by the cooling gas that flows because of the heat that the friction produced, prevent that forming die temperature is too high, make extrusion processing go on smoothly. Moreover, when the molding die cavity is worn and can not be used any more, the molding assembly can be detached from the supporting body and then replaced by a new molding assembly for continuous use, so that the die supporting body can be repeatedly used, the service life of the extrusion molding die is prolonged, and the cost of the integral molding die and the cost of extrusion molding processing can be reduced.

Drawings

The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein,

FIG. 1: the utility model discloses wherein the decomposition structure schematic diagram of ring mould among the forming die.

FIG. 2: the utility model discloses well ring mould one end is equipped with the structure schematic diagram of gas tank.

FIG. 3: the utility model discloses in a horizontal structure schematic diagram of ring mould.

FIG. 4: the utility model discloses in the horizontal structure sketch map of another kind of ring mould.

FIG. 5: the utility model discloses in the horizontal structure schematic diagram of another kind of ring mould.

FIG. 6: the utility model relates to a structural schematic diagram of shaping die cavity.

FIG. 7: the utility model discloses a connection structure schematic diagram of shaping subassembly and supporter.

FIG. 8: the utility model discloses another kind of connection structure sketch map of shaping subassembly and supporter.

FIG. 9: the utility model discloses in a plane mould's schematic structure diagram.

FIG. 10: the schematic sectional view along A-A in FIG. 9.

FIG. 11: the utility model discloses well another kind of planar die's schematic structure.

FIG. 12: the utility model discloses in the structural schematic of another plane mould.

Fig. 13 and 14: the utility model discloses a structural schematic of another kind of shaping die cavity.

Fig. 15 to fig. 18: the utility model discloses a structural schematic of shaping die cavity again.

FIG. 19: the utility model discloses in a plane mould's schematic structure view again.

FIG. 20: the utility model discloses a structural schematic of another shaping die cavity.

FIG. 21: the utility model discloses forming die wherein is equipped with the decomposition structure schematic diagram of second cooling channel on the ring mould.

FIG. 22: the utility model discloses in be equipped with second cooling channel's transverse structure schematic diagram on the ring mould.

FIG. 23: the utility model discloses in another kind be equipped with second cooling channel's transverse structure sketch map on the ring mould.

FIG. 24: the utility model discloses in be equipped with the horizontal structure schematic diagram of second cooling channel on still another kind of ring mould.

FIG. 25: the utility model discloses in be equipped with second cooling channel's schematic structure on the planar die utensil.

FIG. 26: FIG. 25 is a schematic sectional view taken along line B-B.

FIG. 27 is a schematic view showing: the utility model discloses well another kind of planar die is equipped with second cooling channel's schematic structure.

FIG. 28: the utility model discloses in be equipped with second cooling channel's schematic structure view on still another kind of planar die.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.

Example 1

As shown in fig. 1 to 5, for the forming mold of renewable biomass material of the present invention, the forming mold is composed of a supporting body 1 and a forming assembly 2, a plurality of forming mold cavities 21 (only part of the forming mold cavities 21 are shown in the figure) are provided on the forming assembly 2, and the plurality of forming mold cavities 21 are uniformly arranged on the forming assembly 2; the support body 1 is provided with a combining surface 12, and a plurality of through holes 11 (only part of the through holes 11 are shown in the figure) penetrating through the support body 1 are distributed on the combining surface 12; the molding assembly 2 is fixedly arranged on the joint surface 12 of the support body 1, each molding cavity 21 on the molding assembly 2 is respectively provided with a feeding end 23 and a discharging end 24, and the discharging ends 24 of the molding cavities 21 are respectively arranged corresponding to the through holes 11 on the support body; after the biomass material in a loose state enters the molding die cavity 21 from the feeding end 23 of the molding die cavity on the molding assembly 2 to be extruded and molded, the biomass material is led out from the through hole 11 on the support body 1 corresponding to the discharging end 24 of the molding die cavity 2; a plurality of first cooling channels 3 (only part of the cooling channels 3 are shown in fig. 1) are arranged at the joint of the forming assembly 2 and the support body 1 and along the joint surface 12, and the first cooling channels 3 are communicated with part of the through holes 11 on the support body 1.

The utility model discloses an among the forming die, owing to be equipped with a plurality ofly with the first cooling channel 3 of the part through-hole 11 intercommunication on the supporter 1, can be in the forming die use, let in air or other cooling gas in each first cooling channel 3, make the air form between first cooling channel 3's port and through-hole 11 and flow to make forming die take away by the cooling gas that flows because of the heat that the friction produced, prevent that forming die temperature is too high, make extrusion processing can go on smoothly.

In this embodiment, as shown in fig. 1 to 5, the support 1 may have a circular tube shape, the forming member 2 may also have a circular tube shape, and the forming member 2 is fixed to the joint surface 12 of the support to form the ring mold. As shown in fig. 3, the inner wall surface of the support body 1 is a joint surface 12, and the molding assembly 2 is fixedly combined with the support body 1 from the inner wall surface of the annular support body 1; of course, the bonding surface 12 may be an outer wall surface of the support body 1, and the molding member 2 may be bonded and fixed to an outer wall surface of the ring support body 1 (as shown in fig. 4).

As shown in fig. 5, the first cooling channel 3 may be provided on one side of the forming assembly 2 at the junction surface 12 of the forming assembly 2 and the support 1; in this embodiment, the molding die set 2 should be made slightly thicker, and a section of extended hole is further provided at the discharge end 24 of the molding die cavity 21 to avoid the interference between the first cooling channel 3 and the molding die cavity 21 and the damage to the molding die cavity.

As another embodiment of this embodiment, as shown in fig. 4, the first cooling channel 3 may be provided on one side of the support body 1 at the joint surface 12 of the molding member 2 and the support body 1.

As another embodiment of the present embodiment, as shown in fig. 3, the first cooling channel 3 may be disposed to span both sides of the combining surface 12 of the forming assembly 2 and the supporting body 1; in this way, the first cooling channels 3 corresponding to the two sides of the joint face 12 can be symmetrically merged into one through hole (as shown in fig. 3); or may be offset (as shown in figure 2).

In the present invention, the first cooling channel 3 is disposed on one or both sides of the joint surface 12, and is mainly made from the two aspects of not affecting the structural strength of the forming mold and facilitating the processing. The first cooling channel 3 is arranged on one side or two sides of the joint surface 12, and the first cooling channel 3 can be machined in a groove milling mode, so that the machining is facilitated; meanwhile, the first cooling channel 3 is arranged at the joint of the support body 1 and the molding assembly 2, so that the structural strength of the support body and the molding assembly is not greatly weakened.

In the present embodiment, the cross-sectional shape of the first cooling passage 3 may be a semicircle, a rectangle, a semi-ellipse, a polygon, or the like.

In the present invention, as shown in fig. 3 and 4, the cross-sectional area of the discharge end 24 of the molding cavity 2 is smaller than the cross-sectional area of the through hole 11 of the support body 1, that is: when the molded particles extruded from the molding cavity 2 pass through the through holes 11, a slight gap is formed between the molded particles and the through holes 11 of the support body 1; the gap can reduce the extrusion resistance of the material to save energy consumption, and can lead cooling gas to be led out through the gap under the condition of not influencing the extrusion of material particles (namely, at the same time of extruding the material particles).

Further, as shown in fig. 2, the port of each first cooling passage 3 communicates with an air tank 4; the air box 4 is in an annular groove shape, an annular opening 42 is arranged on one bottom surface of the annular air box, the air box is arranged at one end of the annular mold, and the annular opening 42 is arranged corresponding to the port of each first cooling channel 3; the air box 4 can be fixed with the ring mould into a whole and rotate together with the rotation of the ring mould; the air box 4 may also be fixed to a frame (not shown) without rotating with the ring mould.

The gas box 4 can be connected to a gas source (not shown) through an opening 41 formed in the gas box, and the gas source supplies cooling gas or air into the gas box 4. The cooling gas is introduced from the port of each first cooling channel 3 through the gas box 4 and is discharged from the part of the through holes 11 communicated with the port; when flowing in the first cooling channel 3, the cooling gas takes away heat generated on the forming die, so as to prevent the forming die from being influenced by overhigh temperature.

In this embodiment, a seal is formed between the inside edge of the annular opening 42 and the corresponding portion of the forming die to prevent cooling gas from leaking out therefrom. The sealing form can be realized by the prior structure, and the description is not repeated.

Further, in the present embodiment, the cross section of the through hole 11 of the support body 1 may be circular, or may be rectangular, oval or other asymmetric polygons.

As shown in fig. 1, the molding assembly 2 may be composed of a plurality of strip-shaped (or plate-shaped) members 25.

As shown in fig. 3 and 6, the molding cavity 21 is formed by a convergent extrusion cavity 20, and a molding outlet 22 is formed at the bottom of the extrusion cavity 20. The inventor has proved through a great deal of experiments that the material can reach enough material molding density in the contraction-shaped extrusion cavity 20 with the depth not more than 10mm, and the material is directly extruded from the molding outlet 22 to obtain the required shape. After the material is extruded from the forming outlet 22, no friction force exists between the material and the forming die cavity 21, so that the required energy consumption is reduced to the maximum extent, and the abrasion of the die is greatly reduced. In the present embodiment, the diameter of the forming outlet 22 (discharge end) is smaller than the diameter of the support body through hole 11.

As shown in fig. 7, the forming assembly 2 and the supporting body 1 can be fixed by a threaded connection; that is, the support body 1 is provided with a through hole 13, the molding member 2 is provided with a screw hole 26 corresponding to the through hole 13, and the molding member 2 and the support body 1 are tightly connected by a screw (not shown) penetrating the through hole 13 and screwed into the screw hole 26. In this embodiment, the through hole 13 and the threaded hole 26 may be oppositely disposed to make the connection between the two more stable. Alternatively, the perforations may be provided in the molding assembly 2 and the threaded holes in the support body 1.

Furthermore, an embedding and fixing structure can be arranged between the forming assembly 2 and the supporting body 1, and the forming assembly 2 is fixed on the supporting body 1 by the embedding and fixing structure. As shown in fig. 8, a strip-shaped groove 14 is provided on the joining surface 12 of the support body 1, and a rail 27 is correspondingly provided on the forming assembly 2, the rail 27 being engaged with and fixed to the groove 14 during assembly.

The forming component 2 in the utility model can be processed by adopting a precision casting method; the molding cavity 21 of the molding assembly 2 can also be integrally formed with the molding assembly 2 by a precision casting method, so as to reduce the manufacturing cost of the molding mold. In addition, the forming component 2 in the utility model can be made of common mould materials and ceramic materials; the molding member 2 may also be made of a titanium alloy material in order to improve the strength and wear resistance of the molding cavity 21.

Therefore, the forming die of the utility model can not only prevent the forming die from having too high temperature, so that the extrusion forming processing can be smoothly carried out; when the forming cavity 21 is worn and can not be used any more, the forming component 2 can be detached from the supporting body 1 and replaced by a new forming component 2 for continuous use, so that the die supporting body 1 can be used repeatedly, the service life of the extrusion forming die is prolonged, and the cost of the integral forming die and the cost of extrusion forming processing are reduced. Furthermore, because the support body 1 is not directly extruded by materials, the support body can be made of common materials, and the manufacturing cost can be further saved.

Example 2

The principle of the present embodiment is basically the same as that of embodiment 1, and the difference is that, as shown in fig. 21 to 24, one or more second cooling channels 5 communicating with the plurality of first cooling channels 3 are further provided at the joint portion between the molding unit 2 and the support body 1. The second cooling channels 5 are arranged in a ring shape along the circumference of the support body 1 and the forming assembly 2. The plurality of first cooling passages 3 can be communicated with each other through the second cooling passage 5, so that cooling gas can flow in the plurality of first cooling passages 3 and the second cooling passage 5 to improve the cooling effect of the forming die.

In the present embodiment, when the first cooling channel 3 is provided on the side of the forming assembly 2 of the joint surface 12 of the forming assembly 2 and the support body 1, the second cooling channel 5 is also provided on the side of the forming assembly 2 of the joint surface of the forming assembly 2 and the support body 1 to ensure that the second cooling channel 5 and the first cooling channel 3 are communicated with each other (as shown in fig. 21 and 24).

When the first cooling channel 3 is provided on the side of the support body 1 of the joint surface 12 of the mold package 2 and the support body 1, the second cooling channel 5 is also provided on the side of the support body 1 of the joint surface of the mold package 2 and the support body 1 (as shown in fig. 23).

When the first cooling channel 3 is disposed to straddle both sides of the joint surface 12 of the molding assembly 2 and the support 1, the second cooling channel 5 is also disposed to straddle both sides of the joint surface of the molding assembly 2 and the support 1 (as shown in fig. 22).

Other structures, operation principles and advantageous effects of this embodiment are the same as those of embodiment 1, and are not described herein again.

Example 3

The principle of the present embodiment is substantially the same as that of embodiment 1, except that as shown in fig. 9 and 10, the support body 1 is in a flat plate shape, the forming member 2 is also in a flat plate shape, and the forming member 2 is fixed to the bonding surface 12 of the support body to form the flat template.

In this embodiment, a plurality of through holes 11 penetrating through the support body are also distributed on the combining surface 12 of the support body 1; the molding cavities 21 are also formed on the molding member 2 (in this embodiment, the molding cavities 21 are uniformly distributed around the molding member 2), the molding member 2 is fixed on the joint surface 12 of the supporting body 1, and the molding cavities 21 on the molding member 2 are respectively arranged corresponding to the through holes 11 on the supporting body 1. The forming component 2 and the supporting body 1 can be fixed in a threaded connection mode; as shown in fig. 9, the support 1 is provided with a through hole 13, the molding member 2 is provided with a screw hole 26, and the two are tightly connected by a screw (not shown).

As shown in fig. 9 and 10, a plurality of first cooling channels 3 are provided at the joint portion of the forming member 2 and the support body 1 along the joint surface 12, the first cooling channels 3 are arranged in a radial shape around the rotation center of the support body 1 and the forming member 2, and each first cooling channel 3 communicates with a part of the through holes 11 of the support body 1. As shown in fig. 9, the center of the horizontal rotary flat die plate is provided with a shaft hole connected with the rotating shaft, the first cooling channel 3 can horizontally penetrate through the shaft hole from the side edge of the flat die plate (because the penetrating first cooling channel 3 is easier to process), and the rotating shaft is arranged on the shaft hole, therefore, the cooling gas can not leak from the opening of the cooling channel 3 penetrating through the shaft hole.

As another embodiment of this embodiment, as shown in fig. 19, the first cooling channel 3 may not penetrate through the shaft hole (i.e., blind hole or blind groove).

As shown in fig. 11, the first cooling channel 3 may be provided on one side of the forming assembly 2 at the junction surface 12 of the forming assembly 2 and the support body 1.

As another embodiment of this embodiment, as shown in fig. 12, the first cooling channel 3 may be provided on one side of the support body 1 at the joint surface 12 of the molding assembly 2 and the support body 1.

As another embodiment of this embodiment, as shown in fig. 10, the first cooling channel 3 may be disposed on both sides of the combining surface 12 of the forming assembly 2 and the support body 1.

Further, as shown in fig. 9 and 10, the port of each first cooling passage 3 communicates with an air tank 4; the air box 4 is in an annular groove shape, an annular opening 42 is arranged on the inner annular surface of the annular air box, the annular air box is arranged around the planar template, and the annular opening 42 is arranged corresponding to the port of each first cooling channel 3.

The section of the ring groove of the air box 4 can be ㄈ -shaped, and the plane template is clamped at the opening part of ㄈ -shaped; in this embodiment, the air box 4 should be formed of at least two halves to fit around the flat panel.

As shown in fig. 12, the air box 4 may also be arranged around the side edge of the flat formwork and fixed on a frame (not shown); in such an embodiment, the air box 4 may be a unitary structure that fits over the side edges of the flat panel.

The gas box 4 can be connected to a gas source through an opening (not shown) formed in the gas box, and the gas source supplies cooling gas into the gas box 4. The cooling gas is introduced from the port of each first cooling passage 3 through the gas box 4 and is discharged from the plurality of through holes 11 communicated therewith (as shown by arrows in fig. 9 and 10); when flowing in the first cooling channel 3, the cooling gas takes away heat generated on the forming die, so as to prevent the forming die from being influenced by overhigh temperature.

Example 4

The principle of the present embodiment is substantially the same as that of embodiment 3, and the difference is that, as shown in fig. 25 and 26, at least one second cooling channel 5 communicating with the plurality of first cooling channels 3 is further provided at the joint portion between the molding assembly 2 and the support body 1. The second cooling channel 5 is arranged in a ring around the centre of rotation of the support body 1 and the forming assembly 2. The plurality of first cooling passages 3 can be communicated with each other through the second cooling passage 5, so that cooling gas can flow in the plurality of first cooling passages 3 and the second cooling passage 5 to improve the cooling effect of the forming die.

In the present embodiment, when the first cooling channel 3 simultaneously spans both sides of the bonding surface 12 of the mold assembly 2 and the support 1, the second cooling channel 5 also spans both sides of the bonding surface of the mold assembly 2 and the support 1 (as shown in fig. 26).

When the first cooling channel 3 is disposed on one side of the forming assembly 2 at the joint surface 12 of the forming assembly 2 and the support 1, the second cooling channel 5 is also disposed on one side of the forming assembly 2 at the joint surface of the forming assembly 2 and the support 1 (as shown in fig. 27), so as to ensure that the second cooling channel 5 and the first cooling channel 3 are communicated with each other.

When the first cooling channel 3 is provided on the side of the support body 1 of the joint surface 12 of the mold package 2 and the support body 1, the second cooling channel 5 is also provided on the side of the support body 1 of the joint surface of the mold package 2 and the support body 1 (as shown in fig. 28).

Other structures, operation principles and advantageous effects of this embodiment are the same as those of embodiment 3, and are not described herein again.

Example 5

The structure and principle of the embodiment are basically the same as those of embodiment 1, the forming die of the utility model can be applied to the processing of biomass combustion materials, because the forming materials used for forming the combustion materials are harder, before the forming materials enter the forming die cavity, a shearing force is firstly exerted in a wedge-shaped extrusion cavity, under the action of the shearing force, the granular materials in the wedge-shaped extrusion cavity are rolled, rubbed and stretched to form a sheet shape, and along with the continuous reduction of the volume of the wedge-shaped extrusion cavity, the sheet materials enter the forming die cavity of the forming die in a laminated shape; in order to further enable the material which is rolled and stretched into a sheet shape in the wedge-shaped extrusion cavity to be further extruded in the forming cavity of the forming die, so that the density of each layer is increased continuously, a part of particles enter the gap between the sheet-shaped particles after being deformed to form a state of being engaged up and down, so as to form a formed product which is superior to other products, therefore, in the embodiment, as shown in fig. 7, 8, 13 and 14, the forming cavity 21 of the forming die is designed to be that the forming outlet 22 is arranged on one side of the bottom of the extrusion cavity 20 with a tapered cross section in an offset manner, a longer smooth slope is formed between the material inlet end 28 and the forming outlet 22, in the embodiment, the depth b of the extrusion cavity 20 with a tapered cross section is less than or equal to 10mm, and the material enters the extrusion cavity 20 with a tapered cross section from the material inlet end 28 on the side corresponding to the offset direction of the forming outlet, and then extruded out of the forming outlet 22 to give a specific structural shape to the formed product.

Practice has shown that sufficient density can be achieved after the material passes through the die extrusion cavity 20, without the need for a molding section at the molding outlet 22, therefore, the forming section is omitted on the forming die of the utility model, the thickness of the forming component 2 can be equal to the depth of the gradually reduced extrusion cavity 20, after the material enters the extrusion cavity 20 of the die and is extruded, the material is directly formed and extruded through the forming outlet 22, thereby greatly reducing the passing length of the materials in the forming die and leading the materials to be adapted to the characteristic of smaller force transmission distance of the loose biomass materials, on the premise of ensuring the molding quality, the extrusion friction length and time of the material in the molding die are reduced, therefore, can greatly reduce the extrusion resistance of the material, can extrude and form the material only by smaller positive pressure, thereby reducing the energy consumption of the material passing through the molding die cavity and reducing the processing cost of the biomass material product.

Example 6

The basic principle and structure of this embodiment are the same as those of embodiment 3, and in this embodiment, as shown in fig. 13 and 14, the tapered extrusion cavity 20 of the molding cavity 21 provided in the molding assembly 2 has a circular cross-sectional shape, the molding outlet 22 also has a circular shape, the axis 221 of the molding outlet 22 is parallel to and spaced from the axis 201 of the cross-section of the extrusion cavity 20, and the distance a between the two axes is smaller than or equal to the radius of the circular molding outlet 22.

The above-mentioned structural design is favorable for machining the molding cavity 21 by machining, and when machining the molding cavity 21, a through hole can be vertically machined on the molding assembly 2 by a milling cutter (or other cutting tools) to form the molding outlet 22, then a counterboring milling cutter with a proper lead angle is replaced and the machining axis thereof is deviated to one side, and a proper deviation amount (the deviation amount is not larger than the radius of the molding outlet 22) is controlled to perform counterboring to form the tapered extrusion cavity 20. Because the utility model discloses a processing of shaping die cavity 21 does not adopt heterotypic processing method, and only need adopt milling or drilling processing and cooperation control axis skew can accomplish, consequently, makes the processing technology of shaping die cavity 21 simplify and be convenient for process to but the processing cost of greatly reduced mould.

In the present embodiment, as shown in fig. 15 and 16, after the axis 201 of the section of the tapered extrusion cavity 20 in the molding cavity 21 is offset from the axis 221 of the molding die 22, a side edge of the tapered extrusion cavity 20 is tangent to the edge of the molding die 22, i.e. the side forms a vertical side wall 222, in this way, the material entering the molding cavity 21 can be pressed inward by the inward resistance of the vertical side wall 222, so that the material does not overflow from the side edge, and the extrusion molding effect is better. Of course, as shown in fig. 17 and 18, one side of the tapered extrusion cavity 20 can be located outside or inside the edge of the forming die 22 to form the forming die cavity 21, and the same effect can be achieved.

Further, the cross-sectional shape of the tapered extrusion cavity 20 may also be rectangular, oval or other asymmetric shapes, 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, and the forming mold cavity 21 of the above shapes may be integrally formed with the forming component 2 by a precision casting method.

Further, in the present embodiment, since the molding cavity 21 is designed such that the molding outlet 22 is disposed at an offset position on the side of the bottom of the extrusion cavity 20 with a gradually reduced cross section, a long smooth slope is formed between the material inlet end 28 and the molding outlet 22, and the material is extruded from the side of the smooth slope into the molding cavity 21 and then extruded from the molding outlet 22, so that the side with the smooth slope constitutes the material inlet side. The molding member 2 is fixed to the support body 1, and the support body 1 has a certain rotation direction, so that the molding member 2 is assembled in cooperation with the rotation direction of the support body 1 to allow the material to enter the molding cavity 21 from the side of the smooth slope and be extruded (see fig. 7 and 19).

Other structures, principles and effects of this embodiment are the same as those of embodiment 3, and are not described herein again.

Example 7

This embodiment is substantially the same as the previous embodiments except that, as shown in fig. 16, the end of the shaped outlet 22 is provided with an enlarged section 29, the enlarged section 29 having an outlet area larger than that of the shaped outlet 22. The enlarged section 29 may be a cylindrical enlarged section or a gradually expanding enlarged section (shown as a conical enlarged section).

Further, as shown in fig. 20, a small segment of forming section may extend from the end of the forming outlet 22 according to the actual extrusion forming conditions; the expanding section 29 can be further provided at the rear of the forming section (as shown in fig. 18).

Other structures, principles and effects of the present embodiment are the same as those of the previous embodiment, and are not described herein again.

The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any person skilled in the art should also realize that such equivalent changes and modifications can be made without departing from the spirit and principles of the present invention.

Claims

1. A renewable biomass material forming die is used for forming loose biomass material and comprises a forming assembly and a support body; the forming assembly is provided with a plurality of forming die cavities, the supporting body is provided with a combining surface, a plurality of through holes penetrating through the supporting body are distributed on the combining surface, the forming assembly is fixedly arranged on the combining surface of the supporting body, each forming die cavity on the forming assembly is respectively provided with a feeding end and a discharging end, and the discharging end of each forming die cavity is respectively arranged corresponding to the through holes on the supporting body; the biomass material in a loose state enters the forming die cavity from the feeding end of the forming die cavity on the forming assembly, is extruded and formed, and is guided out from the through hole corresponding to the discharging end of the forming die cavity on the support body; the method is characterized in that: and a plurality of first cooling channels are arranged at the joint part of the forming assembly and the support body and along the joint surface, and each first cooling channel is communicated with part of through holes on the support body.

2. The forming die of renewable biomass material of claim 1, wherein: more than one second cooling channel communicated with the plurality of first cooling channels is arranged on the joint part of the forming assembly and the support body.

3. The forming die for renewable biomass material of claim 2, wherein: the first cooling channel is arranged on one side of the forming assembly of the joint surface of the forming assembly and the support body.

4. The forming die of renewable biomass material of claim 3, wherein: the second cooling channel is also arranged on one side of the forming assembly of the joint surface of the forming assembly and the support body.

5. The forming die for renewable biomass material of claim 2, wherein: the first cooling channel is arranged on one side of the support body of the combined surface of the forming assembly and the support body.

6. The forming die for renewable biomass material of claim 5, wherein: the second cooling channel is also arranged on one side of the support body of the combining surface of the forming assembly and the support body.

7. The forming die for renewable biomass material of claim 2, wherein: the first cooling channels are arranged on two sides of a combined surface of the forming assembly and the supporting body in a spanning mode.

8. The forming die for renewable biomass material of claim 7, wherein: the second cooling channels are also arranged on two sides of the combined surface of the forming assembly and the supporting body in a spanning mode.

9. A forming die for renewable biomass material according to any one of claims 1 to 8, wherein: the port of each first cooling channel is communicated with an air box; a gas source provides cooling gas into the gas box.

10. The forming die for renewable biomass material of claim 9, wherein: the supporting body is in a circular tube shape, the forming assembly is also in a circular tube shape, and the forming assembly is fixed on a joint surface of the supporting body to form a ring die; the first cooling channel is arranged in a strip shape parallel to each other along the axial direction of the supporting body and the forming component, and the second cooling channel is arranged in a ring shape along the circumferential direction of the supporting body and the forming component.

11. The forming die for renewable biomass material of claim 10, wherein: the air box is in an annular groove shape, an annular opening is formed in one bottom surface of the annular air box, the air box is arranged at one end of the annular mold, and the annular opening corresponds to the port of each first cooling channel.

12. The forming die for renewable biomass material of claim 9, wherein: the supporting body is in a flat plate shape, the forming assembly is also in a flat plate shape, and the forming assembly is fixed on the combining surface of the supporting body to form a plane template; the first cooling passages are radially disposed about a center of rotation of the support body and the shaping assembly, and the second cooling passages are annularly disposed about a center of rotation of the support body and the shaping assembly.

13. The forming die for renewable biomass material of claim 12, wherein: the air box is in an annular groove shape, an annular opening is formed in the inner annular surface of the annular air box, the annular air box is arranged around the plane template, and the annular opening is arranged corresponding to the port of each first cooling channel.

14. The forming die of renewable biomass material of claim 1, wherein: the molding cavities are uniformly arranged on the molding assembly; the cross-sectional area of the discharge end of the molding die cavity is smaller than that of the through hole of the support body.