CN112338193B

CN112338193B - Multilayer mixed material sizing device and sizing method

Info

Publication number: CN112338193B
Application number: CN202011083073.3A
Authority: CN
Inventors: 侯达盘; 杨小璠; 刘菊东; 陈智杰; 沈志煌; 姜涛; 林忠华; 陈建伟
Original assignee: Jimei University
Current assignee: Jimei University
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2022-10-14
Anticipated expiration: 2040-10-12
Also published as: CN112338193A

Abstract

The invention relates to a multi-layer mixed material sizing device and a sizing method, wherein the sizing device comprises a frame body, a storage bin fixedly arranged on the frame body, a sliding block base, a laminating storage bin, a sliding block in sliding fit with the sliding block base and a controller; the upper end of the layered material pressing bin is open, and the lower end of the layered material pressing bin is closed by a pressing block which can move up and down in a sealing manner; the sliding block is positioned above the layered material pressing bin and moves along the horizontal direction; the sliding block is provided with at least three groups of structures in the horizontal direction, namely a feeding structure for feeding powder into the layered pressing bin, a pushing structure for pushing the powder fed into the layered pressing bin horizontally and a pressure-bearing structure for sealing the upper end surface of the layered pressing bin; ingenious simple straight line action that utilizes the slider realizes simultaneously that the unloading, paves, presses the multiple action of material and the ejection of compact, and device simple structure moves stably, and long service life can high-efficient stable completion multilayer mix the deciding material and the forming process of powder, and degree of automation is high.

Description

Multilayer mixed material sizing device and sizing method

Technical Field

The invention relates to a multi-layer mixed material sizing device and a multi-layer mixed material sizing method, and belongs to the field of material pressing.

Background

In the field of multi-layer powder pressing, such as manufacturing diamond blades, diamond products are composed of a plurality of formulas, each formula needs to be flatly paved into a layer in a 40X 20 cavity, the upper surface of the formula material is flat, then the next formula material can be continuously fed, and the formulas cannot be mixed with each other, so that the layers of the formulas are allowed to be contacted. If different formulations are mixed, the mixing can cause errors as the quality of each formulation is fixed, and chemical reactions between them can damage the blade structure. The material fixing process is seemingly simple, but the contents of several aspects need to be perfected in the whole process, namely the problem of blanking, the problem of paving and the problem of material pressing; for example, after each layer of material is fully paved in the cavity, the powder in the cavity needs to be compacted into a block, so that the production requirement can be met. Due to the action of gravity, the powder entering the cavity is bound to form an irregular undulating surface in the cavity, and the shape of the powder fed next time is affected by the unevenness of the whole surface, so that the whole block is not easy to be compacted into a regular whole block, and a trapezoid block can be formed. The compaction forming after blanking is unreasonable, the existing vibration mode is generally adopted for carrying out, but the structural precision of the device can be reduced by the mode, and the complexity of the device can be increased by the mode. In addition, the existing material fixing device generally performs blanking, paving and pressing separately, so that the equipment is large in size, complex in structure and inconvenient to operate and maintain, and the material fixing device with higher integration level is not available at present.

Disclosure of Invention

In order to solve the technical problems, the invention provides a multi-layer mixed material sizing device and a multi-layer mixed material sizing method. This multilayer mixed material sizing device and sizing method ingenious simple straight line action that utilizes the slider realizes the multiple action of unloading, pave, press the material and the ejection of compact simultaneously, and device simple structure moves stably, and long service life can high-efficient stable completion multilayer mixed powder's sizing and forming process, and degree of automation is high.

The technical scheme of the invention is as follows:

a multi-layer mixed material sizing device comprises a frame body, a storage bin fixedly mounted on the frame body, a sliding block base, a layering storage bin, a sliding block in sliding fit with the sliding block base and a controller; the upper end of the layered material pressing bin is open, and the lower end of the layered material pressing bin is closed by a pressing block which can move up and down in a sealing manner; the sliding block is positioned above the layered material pressing bin and moves along the horizontal direction; the sliding block is provided with at least three groups of structures in the horizontal direction, namely a feeding structure for feeding powder into the layered pressing bin, a pushing structure for pushing the powder fed into the layered pressing bin horizontally and a pressure-bearing structure for sealing the upper end surface of the layered pressing bin.

The pressure-bearing structure, the feeding structure and the pushing structure are sequentially arranged along the moving direction of the sliding block.

The feeding structure comprises a feeding port arranged on the bottom surface of the sliding block and a plurality of feeding pore channels arranged on the sliding block; the lower end of the feeding hole channel is respectively communicated with a feeding port, and the upper end of the feeding hole channel is respectively connected with a material conveying pipe; the other end of the conveying pipe is respectively communicated with a bin; the bin has a plurality of independent bins; and an electromagnetic valve is arranged at the communication position of the bin and the material conveying pipe.

The pressure-bearing structure is a partial bottom surface of the sliding block, the upper end surface of the layering pressing bin is sealed through sliding seal, and the part of the pressure-bearing structure, which is overlapped with the upper end surface of the layering pressing bin, bears pressure when the pressing block presses upwards.

The push-flat structure comprises a groove cavity formed by the bottom surface of the sliding block part upwards and push-flat fan blades arranged in the groove cavity; the push-flat fan blades are vertically and rotatably arranged in the groove cavities, and rotating shafts of the push-flat fan blades are horizontally fixed on the sliding blocks and are vertical to the moving direction of the sliding blocks; the rotating angle of the leveling fan blades is controlled and locked through a stepping motor; the distance from the tail end of the leveling fan blade to the rotating shaft center is smaller than the distance from the front groove cavity wall to the rotating shaft center and is larger than the distance from the opening surface at the lower end of the groove cavity to the rotating shaft center; the width of the leveling fan blades is just equal to that of the laminating bins.

Wherein the slider base comprises one or more sets of opposing horizontal slide rails that clamp or bear down against the slider; the sliding block is driven by a first push rod to horizontally slide along the sliding rail; the pressing block is driven by a second push rod to move up and down.

The first push rod and the second push rod are hydraulic push rods, and corresponding hydraulic devices share one hydraulic pump and are controlled in a feedback mode.

Wherein, the motion front end of the slide block is provided with a wedge-shaped push block to push out the molding material.

Wherein a material pressing platform is arranged below the sliding block base; the laminating material separating bin is arranged on the material pressing platform; the laminating material bins and the corresponding sliding blocks can be arranged on the material pressing table along the width of the material pressing table in a plural manner; the upper surface of one end of the material pressing table is an inclined plane with the thickness gradually reduced towards the end part, so that the formed material can slide out conveniently.

A multilayer mixed material sizing method adopts the multilayer mixed material sizing device and comprises the following steps:

s1, respectively filling required pressing materials into all chambers in a storage bin;

s2: the controller controls the first push rod to push and pull the sliding block to move until the feeding port faces the laminating material splitting bin, the controller controls the electromagnetic valve to open the electromagnetic valve of a bin corresponding to a first layer of required materials of the laminating materials, the first layer of required materials fall into the laminating material splitting bin through the material conveying pipe and the feeding hole channel, and the electromagnetic valve is closed after the set amount is reached;

s3: the controller controls the first push rod to push and pull the sliding block to the groove cavity to face the laminating split storage bin, the controller controls the stepping motor to drive the leveling fan blades to rotate to a certain angle, and the position of the sliding block and the posture of the leveling fan blades are just good at the moment, so that the tail ends of the leveling fan blades are located on the bin wall at one end of the laminating split storage bin with the preset height;

s4: the controller controls the first push rod to move towards the other end of the laminating storage bin in the step S, so that the first layer of materials in the laminating storage bin are paved;

s5: the controller controls the first push rod to push and pull the sliding block until the feeding port faces the laminating material bin, the controller controls the electromagnetic valve to open the electromagnetic valve of a bin corresponding to a material needed by a second layer of the laminating material, the needed material of the second layer falls into the laminating material bin through the material conveying pipe and the feeding hole channel, and the electromagnetic valve is closed after the set amount is reached;

s6: repeating the step S and the step S to smooth the second layer of materials;

s7: repeating S and S to the number of layers required for pressing the materials;

s8: the controller controls the first push rod to push and pull the sliding block to the pressure bearing bottom surface of the first push rod to seal the upper end opening of the laminating material bin;

s9: the controller controls the second push rod to push the pressing block upwards to extrude layered materials, and the materials are pressed and formed;

s10: after the pressure maintaining, the controller controls the second push rod to slightly move downwards to release the pressure;

s11: the controller controls the first push rod to push and pull the sliding block until the wedge-shaped push block is withdrawn into the laminating storage bin;

s12: the controller controls the second push rod to push the molding materials upwards to the outside of the layered pressing bin;

s13: the controller controls the first push rod to push and pull the sliding block so that the wedge-shaped push block pushes the molding material out of one end of the inclined surface of the material pressing platform.

The invention has the following beneficial effects:

1. the device skillfully utilizes the simple linear action of the slide block, simultaneously realizes multiple functions of blanking, paving, pressing and discharging, has simple structure, stable operation and long service life, and can efficiently and stably finish the processes of material fixing and forming of multilayer mixed powder.

2. The slider integrates three functional structures, can skillfully and continuously complete a plurality of processes of uniform blanking, material paving, extrusion forming, forming discharging and the like by matching with the layered material pressing bin, is realized by utilizing the sliding action of the slider, and has very simple and direct action, thereby having very strong operation stability.

3. The material leveling device disclosed by the invention realizes material leveling by utilizing a mode of leveling the fan blades, the structure is firstly integrated on the sliding block, the linear motion of the sliding block is fully utilized, and the depth of the tail end of the leveling fan blade extending into the laminating bin can be accurately controlled through a rotating angle, so that materials of different heights can be leveled, the integral leveling of the materials at various depth positions can be adapted by matching with the motion of the sliding block, and no dead angle of leveling motion exists.

4. The device of the invention forms a whole, particularly the slide block becomes a whole, the functions of the device are not independent, several devices move around the slide block and are skillfully combined to form an integral inseparable functional piece, and the functional piece is closely fit with the layered material pressing bin, and the sequential function of making seeds orderly is realized by simple repeated linear motion.

5. The sliding block base and the sliding rail have the functions of guiding the sliding block, and simultaneously have the pressure bearing function of the sliding block in the extrusion forming process, so the sliding block base and the sliding rail have multiple purposes.

Drawings

FIG. 1 is a schematic front view of a sizing device according to the present invention;

FIG. 2 is a schematic top view of the sizing device of the present invention;

FIG. 3 is a schematic side view of the sizing device of the present invention;

FIG. 4 is a schematic structural diagram of a storage bin of the present invention;

FIG. 5 is a schematic diagram of the position and attitude of the fan blades before the fan blades are pushed flat;

FIG. 6 is a schematic diagram of the position and posture of the fan blade of the present invention when the fan blade is pushed flat;

FIG. 7 is a schematic representation of a further improved compact construction of the present invention.

The reference numbers in the figures denote:

1-frame body, 11-bin, 111-conveying pipeline, 112-bin, 113-electromagnetic valve, 12-slide block base, 121-slide rail, 13-laminating bin, 131-pressing block, 1311-upper pushing plate, 1312-lower pushing plate, 1313-enclosing side wall, 1314-middle pushing plate, 1315-upper chamber, 1316-lower chamber, 1317-through hole, 1318-electrorheological fluid, 14-slide block, 141-feeding port, 142-feeding channel, 143-groove chamber, 144-pushing flat fan blade, 145-stepping motor, 146-wedge-shaped pushing block, 15-first pushing rod, 16-second pushing rod and 17-pressing platform.

Detailed Description

The invention is described in detail below with reference to the figures and the specific embodiments.

Referring to fig. 1 to 4, a multi-layer mixed material sizing device comprises a frame body 1, a bin 11, a sliding block base 12, a layered material pressing bin 13, a sliding block 14 and a controller, wherein the bin 11, the sliding block base 12, the layered material pressing bin 13, the sliding block 14 and the controller are fixedly mounted on the frame body 1; the upper end of the laminating material bin 13 is open, and the lower end of the laminating material bin is closed by a pressing block 131 which can move up and down in a sealing manner; the slide block 14 is positioned above the laminating material cabin 13 and moves along the horizontal direction; the slide block 14 has at least three groups of structures in the horizontal direction, which are a feeding structure for feeding powder into the layered pressing bin 13, a pushing structure for pushing the powder fed into the layered pressing bin 13 to be flat, and a pressure-bearing structure for sealing the upper end surface of the layered pressing bin 13.

Further, the pressure-bearing structure, the feeding structure and the pushing structure are sequentially arranged along the moving direction of the sliding block 14.

Further, the feeding structure comprises a feeding port 141 formed on the bottom surface of the sliding block 14 and a plurality of feeding hole channels 142 formed on the sliding block 14; the lower end of the feeding hole 142 is respectively communicated with the feeding port 141, and the upper end is respectively connected with a feeding pipe 111; the other end of the feed delivery pipe 111 is respectively communicated with the feed bins 11; the silo 11 has a plurality of independent bins 112; an electromagnetic valve 113 is arranged at the position where the bin 112 is communicated with the material conveying pipe 111. Firstly, not only one material is required, so that more than one bin 11 is required, and the total number of the finished formula is four according to the production requirement, but each product can be produced by only using three formulas at most. Therefore, at least three bins 11 and feeding channels 142 are needed, and in order to ensure smooth feeding of other products, four bins 11 and feeding channels 142 are designed to be prepared for possible use of other materials when a new formula is developed, and four formulas in total can be temporarily closed when the bins 11 are not needed and opened when needed by controlling the electromagnetic valve 113. On the other hand, circulation of the feeding device is performed. After the single material is fed, the feeding hole 142 is pushed to the original position after the single material is pushed to be flat, and then the other feeding hole 142 is opened to feed the material through the other feeding hole 142, so that the whole mechanism can smoothly circulate; the blanking is uniform without being completely extruded at the blanking port by driving the sliding block 14 to move while blanking, and the design scheme influences the design of the rear pushing device. Therefore, a power source is required to drive the sliding block 14 to move, and in the linear movement, a linear motor or a hydraulic mechanism can be used as a power mechanism for the linear movement. Since the mass of the slider 14 is not very heavy and the linear movement is to reduce the wear of its contact surfaces, it is necessary to mount a guide rail on the slider to reduce the frictional resistance of the movement.

Further, the pressure-bearing structure is a partial bottom surface of the sliding block 14, the partial bottom surface seals the upper end surface of the layered pressing bin 13 through sliding sealing, and the part of the partial bottom surface, which is overlapped with the upper end surface of the layered pressing bin 13, bears pressure when the pressing block 131 presses upwards.

Further, the push-flat structure comprises a slot cavity 143 formed by the bottom surface of the slider 14 and extending upward, and push-flat fan blades 144 arranged in the slot cavity 143; the leveling fan blades 144 are vertically and rotatably arranged in the groove cavities 143, and the rotating shafts of the leveling fan blades are horizontally fixed on the sliding block 14 and are vertical to the moving direction of the sliding block 14; the rotation angle of the leveling fan blades 144 is controlled and locked by a stepping motor 145; the distance from the tail end of the flat pushing fan blade 144 to the rotating axis is less than the distance from the wall of the groove cavity 143 in front of the flat pushing fan blade to the rotating axis and is greater than the distance from the lower end opening surface of the groove cavity 143 to the rotating axis; the width of the leveling fan blades 144 is just equal to that of the laminating bins 13;

further, the slider base 12 includes one or more sets of opposing horizontal slide rails 121 that clamp or ride down against the slider 14; the sliding block 14 is driven by a first push rod 15 to horizontally slide along the sliding rail 121; the pressing piece 131 is driven by a second push rod 16 to move up and down.

Preferably, the first push rod 15 and the second push rod 16 are both hydraulic push rods, and corresponding hydraulic devices share one hydraulic pump and are subjected to feedback control with each other.

Preferably, a wedge-shaped pusher 146 is mounted to the moving front end of the slide 14 to push out the molding material.

Further, a material pressing platform 17 is arranged below the slider base 12; the laminating material dividing bin 13 is arranged on the material pressing platform 17; the laminating bins 13 and the corresponding sliding blocks 14 can be arranged on the material pressing table 17 along the width of the material pressing table in a plurality way; the upper surface of one end of the material pressing platform 17 is an inclined plane with the thickness gradually reduced towards the end part, so that the formed material can slide out conveniently.

s1, respectively filling required pressing materials into all bins 112 in a bin 11;

s2: the controller controls the first push rod 15 to push and pull the slide block 14 to move until the feeding port 141 faces the laminating material bin 13, the controller controls the electromagnetic valve 113 to open the electromagnetic valve 113 of the chamber 112 corresponding to the first layer of the required materials of the laminating materials, the required materials of the first layer fall into the laminating material bin 13 through the material conveying pipe 111 and the material feeding hole 142, and the electromagnetic valve 113 is closed after the set amount is reached; the materials enter the layered pressing bin 13 through the material conveying pipe 111, the sliding block 14 moves at a constant speed to drive the material conveying pipe 111 to move, so that the materials can uniformly fall into the layered pressing bin 13,

s3: the controller controls the first push rod 15 to push and pull the sliding block 14 until the slot cavity 143 faces the sub-lamination storage bin 13, the controller controls the stepping motor 145 to drive the leveling fan blades 144 to rotate to a certain angle, and at the moment, the position of the sliding block 14 and the posture of the leveling fan blades 144 just enable the tail ends of the leveling fan blades 144 to be located on one end bin wall of the sub-lamination storage bin 13 at a preset height;

s4: the controller controls the first push rod 15 to move toward the other end of the laminating hopper 13 in step S3, thereby laying down the first layer of material therein; when the material enters the layered pressing bin 13, the first push rod 15 drives the sliding block 14 to move forward, the leveling fan blades 144 installed inside the sliding block 14 move to the upper side of the layered pressing bin 13 according to the flow, the stepping motor 145 drives the leveling fan blades 144 to rotate, the position of the leveling fan blades 144 is in the position shown in fig. 5, at this time, the sliding block 14 continues to move forward, and the leveling fan blades 144 also push the material to move, so that the material is leveled to the position shown in fig. 6. At this time, the material is already pushed flat, and the pushing flat fan blade 144 has already moved to the other end of the layered material pressing bin 13, at this time, the stepping motor 145 drives the pushing flat fan blade 144 to rotate, and the blade is rotated to the horizontal position; the slider 14 moves backward, and then the next blanking work is repeated;

s5: the controller controls the first push rod 15 to push and pull the slide block until the feeding port 141 faces the layering storage bin 13, the controller controls the electromagnetic valve 113 to open the electromagnetic valve 113 of the chamber 112 corresponding to the materials required by the second layer of the laminating materials, the materials required by the second layer fall into the layering storage bin 13 through the material conveying pipe 111 and the material feeding hole 142, and the electromagnetic valve 113 is closed after the set amount is reached;

s6: repeating the step S3 and the step S4 to trowel the second layer of materials;

s7: repeating S5 and S6 to the number of layers required by material pressing;

s8: the controller controls the first push rod 15 to push and pull the sliding block 14 to the pressure-bearing bottom surface of the first push rod to seal the upper end opening of the laminating material bin 14;

s9: the controller controls the second push rod 16 to push the pressing block 131 upwards to extrude layered materials, and the materials are pressed and formed; the material is pressed into blocks by the pressing block 131 and the sliding block 14, because the material can be pressed into blocks due to the viscosity of the material formula and a certain adhesive.

S10: after the molding and pressure maintaining, the controller controls the second push rod 16 to slightly move downwards to release the pressure;

s11: the controller controls the first push rod 15 to push and pull the slide block 14 until the wedge-shaped push block 146 withdraws from the laminating separation bin 13;

s12: the controller controls the second push rod 16 to push the molding material upwards out of the layered material pressing bin 13;

s13: the controller controls the first push rod 15 to push and pull the slide block 14, so that the wedge-shaped push block 146 pushes the molding material out from one end of the inclined surface of the material pressing table 17.

Referring to fig. 7, as a further modification, the pressing block 131 includes an upper pushing plate 1311, a lower pushing plate 1312 and a surrounding side wall 1313; the enclosing side wall 1313 is connected with the upper push plate 1311 and the lower push plate 1312 to form a sealed hollow cavity structure; the sealed hollow cavity structure can be cylindrical, square, cuboid or other sealed closed structures with hollow structures and same vertical cross section shapes according to the shape formed by layered materials, and a middle push plate 1314 is hermetically and slidably sleeved in the hollow cavity structure up and down; the middle push plate 1314 divides the pressing block 131 into an upper cavity 1315 and a lower cavity 1316 from top to bottom; the middle push plate 1314 is provided with a plurality of through holes 1317 for communicating the upper cavity 1315 with the lower cavity 1316; the upper cavity 1315 is filled with electrorheological fluid 1318; the upper push plate 1311 and the middle push plate 1314 are made of metal conductive materials and are respectively connected with the positive electrode and the negative electrode of an external power supply, or the opposite surfaces of the upper push plate 1311 and the middle push plate 1314 are respectively embedded with electrodes and are respectively connected with the positive electrode and the negative electrode of the external power supply. The second push rod 16 sealingly slides through the lower push plate 1311 into the lower cavity 1316 and is fixedly connected to the middle push plate 1314; when the second pushing rod 16 pushes the pressing block 131 upwards to press the layered material, the second pushing rod 16 pushes the middle pushing plate 1314 to ascend, and the middle pushing plate 1314 presses the electrorheological fluid 1318 in the upper cavity 1315; the electrorheological fluid 1318 is used as a medium to push the upper push plate 1311 to ascend and extrude the layered materials, and in the process, part of the electrorheological fluid 1318 is extruded into the lower cavity 1316 through the through hole 1317, so that the process not only can promote the primary pressing of the layered material powder, but also can prevent the sudden change of the resistance of the second push rod 16, and avoid the damage of a power mechanism of the second push rod 16; in the process that the middle push plate 1314 rises, the viscosity of the electrorheological fluid 1318 is gradually increased under the action of an external electric field applied by an external power supply to the middle push plate 1314, so that the external thrust of the second push rod 16 and the upper push plate 1311 is linearly enhanced and changed, until the external electric field intensity is remarkably higher than the critical value of the electrorheological fluid 1318, the electrorheological fluid 1318 is converted into a solid state, at this time, the upper push plate 1311 and the middle push plate 1318 do not have relative displacement any more, and the upper push plate 1311 and the middle push plate 1318 form a whole to perform final pressure forming on the layered material; the upward pushing action of the second push rod 16 and the upward pushing action of the upward push plate 1311 are gradually increased in the whole process, the relative distance between the two is gradually reduced, the changes are continuous, jerky actions or abrupt force cannot be generated, and the device is beneficial to a power structure device and a press forming process; after the layered material is extruded and pressure-maintaining molded, before the molded material is removed, the pressure needs to be released first, in step S10, at this time, the middle push plate 1314 does not need to act, and the electrorheological fluid 1318 can be changed into a liquid state or a viscous state again only by disconnecting the electric field applied to the electrorheological fluid 1318 or gradually weakening the electric field to below a critical value, and can flow to the lower cavity 1316 in a limited manner, so that the pressure can be released, and the process of step S10 is completed; the process can be finished without the action of the second push rod 16, and the process of releasing the pressure also gradually changes along with the gradual change of the viscosity of the electrorheological fluid 1318, so that the damage of the sudden pressure release to the molding layered material and the power structure of the second push rod 16 can be avoided.

As a preferable further improvement, the electrorheological fluid 1318 is composed of solid particles with high dielectric constant uniformly dispersed in insulating oil with low dielectric constant, and under the action of an external electric field, the solid particles in the electrorheological fluid 1318 obtain the induction action of the electric field, so as to enter the solid state from the liquid state. The rapid and reversible transformation between liquid state and solid-like state can be carried out, and the continuous viscosity can be kept. The conversion is very quick, instantaneous and controllable, and the energy consumption is very low, so that the conversion can be combined with a computer to realize real-time control. The size of the through hole 1317 allows insulating oil to pass through but does not allow solid particles to pass through, so when the middle push plate 1314 is lifted, a part of the insulating oil in the electrorheological fluid 1318 in the upper cavity 1315 can enter the lower cavity 1316 through the through hole 1317, but the solid particles in the electrorheological fluid cannot pass through the through hole 1317 and still remain in the upper cavity 1315, so that the concentration of the solid particles in the upper cavity 1315 is gradually increased, the action of an applied electric field can be responded to more quickly, and the effect of amplification is achieved; the electrorheological fluid 1318 in the lower cavity 1316 does not actually contain or only contains a small amount of solid particles, so that under the action of the external electric field, the viscosity of the liquid in the upper cavity 1315 and the viscosity of the liquid in the lower cavity 1316 are different, and even the viscosity of the liquid in the lower cavity 1316 is not affected by the external electric field, so that on one hand, energy required for controlling the change of the electrorheological fluid 1318 can be saved, and the reaction speed and effect can be amplified; on the other hand, to facilitate withdrawal of the second push rod 16 and the middle push plate 1314 downward and to facilitate fluid in the lower chamber 1316 into the upper chamber 1315; the extrusion thrust of the upper push plate 1311 to the layered materials can be adjusted under the condition of not changing the thrust of the second push rod 16 by controlling the magnitude of the external electric field, so that the extrusion forming device is suitable for extrusion forming and forming strength control of various layered materials under the condition of not changing the structure of the device.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a multilayer miscellany material sizing device which characterized in that: comprises a frame body (1), a bin (11) fixedly arranged on the frame body (1), a sliding block base (12), a layered material pressing bin (13), a sliding block (14) in sliding fit with the sliding block base (12) and a controller; the upper end of the laminating material bin (13) is open, and the lower end of the laminating material bin is closed by a pressing block (131) which can move up and down in a sealing manner; the sliding block (14) is positioned above the laminating material cabin (13) and moves along the horizontal direction; the sliding block (14) is provided with at least three groups of structures in the horizontal direction, namely a feeding structure for feeding powder into the layered material pressing bin (13), a leveling structure for leveling the powder fed into the layered material pressing bin (13) and a pressure-bearing structure for sealing the upper end surface of the layered material pressing bin (13); the push-flat structure comprises a groove cavity (143) formed by the bottom surface of the part of the sliding block (14) upwards and push-flat fan blades (144) arranged in the groove cavity (143); the push flat fan blade (144) is vertically and rotatably arranged in the slot cavity (143), and a rotating shaft of the push flat fan blade is horizontally fixed on the sliding block (14) and is vertical to the moving direction of the sliding block (14); the rotating angle of the leveling fan blades (144) is controlled and locked by a stepping motor (145); the distance from the tail end of the leveling fan blade (144) to the rotating axis is less than the distance from the wall of the groove cavity (143) in front of the leveling fan blade to the rotating axis and is greater than the distance from the lower end opening surface of the groove cavity (143) to the rotating axis; the width of the leveling fan blades (144) is just equal to that of the laminating split bin (13).

2. The multi-layer mixed material sizing device as claimed in claim 1, wherein: the pressure bearing structure, the feeding structure and the pushing structure are sequentially arranged along the moving direction of the sliding block (14).

3. The multi-layer mixed material sizing device as claimed in claim 1, wherein: the feeding structure comprises a feeding port (141) arranged on the bottom surface of the sliding block (14) and a plurality of feeding pore channels (142) arranged on the sliding block (14); the lower end of the feeding hole channel (142) is respectively communicated with a feeding port (141), and the upper end of the feeding hole channel is respectively connected with a feeding pipe (111); the other end of the feed delivery pipe (111) is respectively communicated with a storage bin (11); the silo (11) has a plurality of independent silos (112); and an electromagnetic valve (113) is arranged at the communication part of the bin (112) and the material conveying pipe (111).

4. The multi-layer mixed material sizing device as claimed in claim 1, wherein: the pressure-bearing structure is a partial bottom surface of the sliding block (14), the upper end surface of the layered pressing bin (13) is sealed and sealed in a sliding mode, and the part, superposed with the upper end surface of the layered pressing bin (13), of the pressure-bearing structure bears pressure when the pressing block (131) presses materials upwards.

5. The multi-layer mixed material sizing device as claimed in claim 1, wherein: the slider base (12) comprises one or more sets of opposing horizontal slide rails (121) that clamp or bear down against the slider (14); the sliding block (14) is driven by a first push rod (15) to horizontally slide along the sliding rail (121); the pressing block (131) is driven by a second push rod (16) to move up and down.

6. The multi-layer mixed material sizing device as claimed in claim 5, wherein: the first push rod (15) and the second push rod (16) are hydraulic push rods, and corresponding hydraulic devices share one hydraulic pump and are subjected to feedback control mutually.

7. The multi-layer mixed material sizing device as claimed in claim 1, wherein: the front end of the sliding block (14) is provided with a wedge-shaped push block (146) for pushing out the molding material.

8. The multi-layer mixed material sizing device as claimed in claim 1, wherein: a material pressing platform (17) is arranged below the sliding block base (12); the laminating material dividing bin (13) is arranged on the material pressing platform (17); the laminating bins (13) and the corresponding sliding blocks (14) can be arranged on the material pressing platform (17) along the width of the material pressing platform in a plurality manner; the upper surface of one end of the material pressing platform (17) is an inclined plane with the thickness gradually reduced towards the end part, so that the formed material can slide out conveniently.

9. A method for dosing a multilayer batch of mixed material, using a multilayer batch device according to any one of claims 1 to 8, comprising the steps of:

s1, filling required pressing materials into all bins (112) in a bin (11) respectively;

s2: the controller controls the first push rod (15) to push and pull the sliding block (14) to move to the feeding port (141) to face the laminating material bin (13), the controller controls the electromagnetic valve (113) to open the electromagnetic valve (113) corresponding to the bin chamber (112) for laminating the first layer of the materials, the first layer of the materials fall into the laminating material bin (13) through the material conveying pipe (111) and the material feeding hole channel (142), and the electromagnetic valve (113) is closed after the set amount is reached;

s3: the controller controls the first push rod (15) to push and pull the sliding block (14) to the groove cavity (143) to face the lamination split bin (13), the controller controls the stepping motor (145) to drive the leveling fan blades (144) to rotate to a certain angle, and the position of the sliding block (14) and the posture of the leveling fan blades (144) are just good at the moment, so that the tail ends of the leveling fan blades (144) are located on the bin wall at one end of the lamination split bin (13) with the preset height;

s4: the controller controls the first push rod (15) to move towards the other end of the laminating storage bin (13) in the step S (3) so as to pave the first layer of materials in the laminating storage bin;

s5: the controller controls the first push rod (15) to push and pull the sliding block to a feeding port (141) opposite to the laminating material bin (13), the controller controls the electromagnetic valve (113) to open the electromagnetic valve (113) of the bin chamber (112) corresponding to the materials required by the second layer of the laminated materials, the materials required by the second layer fall into the laminating material bin (13) through the material conveying pipe (111) and the material feeding pore channel (142), and the electromagnetic valve (113) is closed after the set amount is reached;

s6: repeating the step S (3) and the step S (4) to trowel the second layer of materials;

s7: repeating the step (5) and the step (6) until the number of layers required for material pressing is reached;

s8: the controller controls the first push rod (15) to push and pull the sliding block (14) until the pressure-bearing bottom surface of the first push rod closes the upper end opening of the laminating material bin (14);

s9: the controller controls the second push rod (16) to push the pressing block (131) upwards to extrude layered materials, and the materials are pressed and formed;

s10: after the molding and pressure maintaining, the controller controls the second push rod (16) to slightly move downwards to release pressure;

s11: the controller controls the first push rod (15) to push and pull the sliding block (14) until the wedge-shaped push block (146) is withdrawn into the laminating storage bin (13);

s12: the controller controls the second push rod (16) to push the molding material upwards out of the layered material pressing bin (13);

s13: the controller controls the first push rod (15) to push and pull the slide block (14) so that the wedge-shaped push block (146) pushes the molding material out from one end of the inclined surface of the material pressing table (17).