CN110117007B - Graphene fold body forming equipment - Google Patents
Graphene fold body forming equipment Download PDFInfo
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- CN110117007B CN110117007B CN201910524071.4A CN201910524071A CN110117007B CN 110117007 B CN110117007 B CN 110117007B CN 201910524071 A CN201910524071 A CN 201910524071A CN 110117007 B CN110117007 B CN 110117007B
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 95
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 95
- 238000001125 extrusion Methods 0.000 claims abstract description 224
- 230000005540 biological transmission Effects 0.000 claims abstract description 127
- 238000005096 rolling process Methods 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000017525 heat dissipation Effects 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 description 28
- 238000009434 installation Methods 0.000 description 19
- 230000005570 vertical transmission Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 3
- 230000005571 horizontal transmission Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical class C* 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 150000002843 nonmetals Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/182—Graphene
- C01B32/194—After-treatment
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Nanotechnology (AREA)
- Inorganic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a graphene fold body forming device, which relates to the technical field of extrusion devices, and comprises: the extrusion mechanism comprises an extrusion driving assembly, an extrusion transmission assembly, a bearing assembly and a plurality of extrusions, wherein the extrusion driving assembly is in transmission connection with the extrusion transmission assembly, the extrusion transmission assembly is respectively in transmission connection with the extrusions surrounding an extrusion area, and the extrusion driving assembly is used for driving the extrusion transmission assembly so that the extrusion transmission assembly drives the extrusions to be close to or far away from each other at the same time; the pressure head moving mechanism is in transmission connection with the pressure maintaining mechanism so as to drive the pressure maintaining mechanism to move towards or away from the bearing assembly. The graphene fold body forming equipment provided by the invention relieves the technical problems that the density consistency of the graphene fold body extruded by the extrusion equipment in the related technology is poor and the heat dissipation effect is affected.
Description
Technical Field
The invention relates to the technical field of extrusion equipment, in particular to graphene fold body forming equipment.
Background
Conventionally, mobile phone heat dissipation relies on metal back shell heat dissipation, and fan heat dissipation cannot be added like a PC (personal computer, english full name) or a notebook computer, in addition, because the area of the metal back shell is smaller, the heat dissipation performance of the metal material is also fixed, and these factors greatly restrict the heat dissipation capability of the mobile phone. Graphene is a single-carbon-atom sheet material stripped from a graphite material, consists of a series of carbon atoms arranged according to honeycomb lattices, can rapidly diffuse heat, and can not cause the problems of heating, scalding or firing of the traditional lithium battery due to temperature rise.
In the related art, graphene paper is extruded into graphene fold bodies through extrusion equipment, and the density consistency of the graphene fold bodies extruded by the extrusion equipment in the related art is poor, so that the heat dissipation effect is affected.
Disclosure of Invention
The invention aims to provide graphene fold body forming equipment so as to solve the technical problem that the density consistency of graphene fold bodies extruded by extrusion equipment in the related technology is poor and the heat dissipation effect is affected.
The graphene fold body forming device provided by the invention comprises: the extrusion mechanism comprises an extrusion driving assembly, an extrusion transmission assembly, a bearing assembly and a plurality of extrusion pieces, wherein the extrusion driving assembly is in transmission connection with the extrusion transmission assembly, the extrusion transmission assembly is respectively in transmission connection with the extrusion pieces which enclose an extrusion area, and the extrusion driving assembly is used for driving the extrusion transmission assembly so that the extrusion transmission assembly drives the extrusion pieces to be mutually close to or far away from each other;
the pressure head moving mechanism is in transmission connection with the pressure maintaining mechanism so as to drive the pressure maintaining mechanism to move towards a direction close to or far away from the bearing assembly.
Further, the extrusion piece comprises a plurality of extrusion plates, the extrusion plates are surrounded into an extrusion area along the circumference of the bearing assembly, and the extrusion transmission assembly is detachably connected with the extrusion plates.
Further, the extrusion transmission assembly comprises a chuck base and transmission pieces, and a plurality of transmission pieces, the number of which is equal to that of the extrusion pieces, are in transmission connection with a plurality of the extrusion pieces in a one-to-one correspondence manner;
the driving assembly is in transmission connection with the chuck base, the chuck base is respectively in transmission connection with a plurality of transmission pieces, and the driving assembly drives the chuck base, so that a plurality of transmission pieces drive a plurality of extrusion pieces to be close to or far away from each other simultaneously.
Further, the chuck base is provided with a plurality of guide grooves, the number of the guide grooves is the same as that of the transmission pieces, and the transmission pieces are in sliding fit with the guide grooves in a one-to-one correspondence manner.
Further, the extrusion mechanism comprises an extrusion guiding assembly, one end of the extrusion guiding assembly is connected with the bearing assembly, and the other end of the extrusion guiding assembly is connected with the transmission piece.
Further, the pressure maintaining mechanism comprises a pressure head and a pressure head installation assembly, the pressure head installation assembly and the extrusion piece are positioned on the same side of the bearing assembly, and the extrusion transmission assembly is in transmission connection with the pressure head installation assembly;
the ram is mounted to a side of the ram mounting assembly opposite the carrier assembly.
Further, a rolling element is arranged on the surface, opposite to the bearing assembly, of the pressure head, and the rolling element is movably connected with the pressure head.
Further, the pressure head installation assembly comprises a first installation plate and a second installation plate, the first installation plate is connected with the extrusion transmission assembly, the second installation plate is located on one side of the first installation plate opposite to the bearing assembly and is in sliding connection with the first installation plate, and the pressure head is installed on one side of the second installation plate opposite to the bearing assembly.
Further, a pressure sensor is arranged between the first mounting plate and the second mounting plate.
Further, the pressure head moving mechanism comprises a horizontal driving assembly and a vertical driving assembly, wherein the horizontal driving assembly is in transmission connection with the vertical driving assembly, and the vertical driving assembly is in transmission connection with the pressure head installation assembly.
When the graphene fold body forming equipment provided by the invention is used for extruding graphene, the graphene is placed on the bearing assembly, and the graphene is positioned in the extruding area; the pressure head moving mechanism drives the pressure maintaining mechanism to move towards the direction close to the bearing assembly, and the pressure maintaining mechanism is matched with the bearing assembly to extrude graphene; the extrusion driving assembly drives the plurality of extrusion pieces to move towards the direction close to the graphene simultaneously through the extrusion transmission assembly so as to extrude the graphene; after extrusion is completed, the extrusion driving assembly drives the plurality of extrusion pieces to move towards the direction far away from the graphene simultaneously through the extrusion transmission assembly, the extruded graphene is loosened, and the pressure maintaining mechanism is used for maintaining the pressure of the graphene and then drives the pressure maintaining mechanism to move towards the direction far away from the graphene.
Compared with the prior art, the graphene fold body forming equipment provided by the invention drives the plurality of extrusion parts to extrude the graphene in the extrusion process, and is matched with the pressure maintaining mechanism, so that the stress on each side of the extruded graphene is uniform, the uniformity of graphene density distribution after extrusion forming is improved, and the uniform heat conduction performance of the graphene is improved, so that the heat dissipation effect is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the related art, the drawings that are required to be used in the description of the embodiments or the related art will be briefly described, and it is apparent that the drawings in the description below are some embodiments of the present invention, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.
Fig. 1 is a schematic structural diagram of a graphene fold body forming device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an extrusion mechanism of a graphene fold body forming device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a chuck base of a graphene fold body forming device according to an embodiment of the present invention;
fig. 4 is a schematic diagram of the matching between a transmission member and a mounting plate of a graphene fold body forming device according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a pressure head of a graphene fold body forming device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a pressure head mounting assembly of a graphene fold body forming device according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a ram moving mechanism of a graphene fold body forming apparatus according to an embodiment of the present invention.
Icon: 100-frames; 200-a pressure head moving mechanism; 211-a horizontal driving cylinder; 212-vertical drive plate; 213-horizontal guide rail; 214-horizontal slide blocks; 221-a vertical drive cylinder; 222-an adapter plate; 223-supporting plate; 224-first guide bar; 225-a first bushing; 300-pressure maintaining mechanism; 310-pressing head; 311-balls; 321-a first mounting plate; 322-a second mounting plate; 323-a second guide bar; 324-a second bushing; 330-a pressure sensor; 400-an extrusion mechanism; 411-servo motor; 412-a motor base; 413-coupling; 414-bearing blocks; 420-an extrusion drive assembly; 421-chuck base; 4211-guide grooves; 422-a transmission member; 4221-a first connection plate; 4222-a second connection plate; 4223-connecting rods; 430-a carrier assembly; 431-mounting plate; 4311-through slot; 432-bearing blocks; 441-squeeze plate; 450-squeeze guide assembly; 451-pressing the guide rail; 452-squeeze slider.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 and fig. 2, a graphene fold body forming apparatus provided in an embodiment of the present invention includes: the machine frame 100, and the pressure head moving mechanism 200, the pressure maintaining mechanism 300 and the extrusion mechanism 400 which are all arranged on the machine frame 100, wherein the extrusion mechanism 400 comprises an extrusion driving assembly, an extrusion transmission assembly 420, a bearing assembly 430 and a plurality of extrusion pieces, the extrusion driving assembly is in transmission connection with the extrusion transmission assembly 420, the extrusion transmission assembly 420 is respectively in transmission connection with a plurality of extrusion pieces which enclose an extrusion area, and the extrusion driving assembly is used for driving the extrusion transmission assembly 420 so that the extrusion transmission assembly 420 drives the extrusion pieces to be mutually close to or far away from each other at the same time; the pressure head moving mechanism 200 is in transmission connection with the pressure maintaining mechanism 300 to drive the pressure maintaining mechanism 300 to move towards or away from the bearing assembly 430.
The pressure head moving mechanism 200 and the extrusion mechanism 400 are both arranged on the frame 100, the pressure maintaining mechanism 300 and the pressure head moving mechanism 200 are both arranged above the extrusion mechanism 400, the pressure maintaining mechanism 300 is matched with the bearing assembly 430 to extrude the graphene in the vertical direction, and the extrusion transmission assembly 420 drives the plurality of extrusion pieces to move in the direction close to the graphene to extrude the side edges of the graphene.
Further, the extrusion includes a plurality of extrusion plates 441, the extrusion plates 441 enclose the extrusion area, and the extrusion driving assembly 420 is detachably connected to the extrusion plates 441, respectively.
Specifically, the number of the pressing plates 441 is three, four, five, or the like, and in this embodiment, the number of the pressing plates 441 is four, and the four pressing plates 441 are disposed along the circumferential direction of the carrier assembly 430 and enclose a rectangular pressing area. The four squeeze plates 441 are all disposed along the horizontal direction and are all connected with the squeeze transmission assembly 420 through bolts, and the four squeeze plates 441 are respectively a first squeeze plate, a second squeeze plate, a third squeeze plate and a fourth squeeze plate. The first, second, third and fourth squeeze plates are disposed end-to-end in sequence along the circumference of the carrier assembly 430, thereby enclosing a squeeze region that is rectangular. The extrusion driving assembly 420 drives the first extrusion plate and the third extrusion plate to linearly move along a first direction, and the second extrusion plate and the fourth extrusion plate to linearly move along a second direction, wherein the first direction is perpendicular to the second direction. The first extrusion surface of the first extrusion plate and the second extrusion surface of the second extrusion plate are arranged at an acute angle with the first direction, and the second extrusion surface of the second extrusion plate and the fourth extrusion surface of the fourth extrusion plate are arranged at an acute angle with the second direction. When placing graphene to the extrusion region, every extrusion plate 441 moves rightwards relative to the extrusion region, and the extrusion transmission assembly 420 drives the first extrusion plate, the second extrusion plate, the third extrusion plate and the fourth extrusion plate to move along the corresponding directions towards the directions away from each other simultaneously, and after the graphene is placed in the extrusion region, the extrusion transmission assembly 420 drives the first extrusion plate, the second extrusion plate, the third extrusion plate and the fourth extrusion plate to move along the corresponding directions towards the directions close to each other simultaneously, and simultaneously extrudes the side edges of the graphene, so that the cross section of the extruded graphene is rectangular. The plurality of extrusion plates 441 are connected with the extrusion transmission assembly 420 through bolts, and the extrusion plates 441 with proper thickness can be selected according to the thickness of the graphene after extrusion molding, and are installed on the extrusion transmission assembly 420, so that different extrusion requirements are met.
Further, the compression plate 441 is made of an alloy material, and the alloy is a substance having metal characteristics, which is synthesized by two or more metals and metals or non-metals through a certain method, and has good normal temperature mechanical properties and wear resistance, so that the service life of the compression plate 441 is prolonged.
Further, the extrusion driving assembly 420 includes a chuck base 421 and driving members 422, and a plurality of driving members 422 equal to the number of the extrusion members are connected to the plurality of driving members 422 in one-to-one correspondence with the plurality of extrusion members; the driving assembly is in transmission connection with the chuck base 421, the chuck base 421 is in transmission connection with a plurality of transmission pieces 422 respectively, and the driving assembly drives the chuck base 421 so that the chuck base 421 drives a plurality of extrusion pieces to be close to or far away from each other simultaneously.
As shown in fig. 3, the chuck base 421 is provided with four transmission parts in its own circumferential direction. The number of the driving members 422 is four, four driving portions uniformly distributed along the circumferential direction of the chuck base 421 are in sliding fit with the four driving members 422 in a one-to-one correspondence, and the four pressing plates 441 are in driving connection with the four driving members 422 in a one-to-one correspondence. During the pressing process, the pressing driving assembly drives the chuck base 421 to rotate around the axis of the chuck base 421 in a first direction or a second direction, and the first direction is opposite to the second direction. When the graphene to be extruded is placed in the extrusion area, the chuck base 421 is overlooked, the chuck base 421 is driven by the extrusion driving assembly to rotate anticlockwise around the axis of the chuck base 421, the chuck base 421 drives the four transmission pieces 422 to move, the four corresponding extrusion plates 441 are driven by the four transmission pieces 422 to move in the direction away from the center of the bearing assembly, after the graphene to be extruded is placed in the extrusion area, the graphene to be extruded is driven by the extrusion driving assembly to rotate clockwise around the axis of the chuck, the four transmission pieces 422 are driven by the chuck base 421 to move, the four extrusion plates 441 are driven by the four transmission pieces 422 to move in the direction close to the center of the extrusion area, and the graphene in the extrusion area is extruded by the four extrusion plates 441 in a matched mode. The chuck base 421 drives the four extrusion plates 441 to synchronously move, so that the consistency of the movement of the four extrusion plates 441 is improved, the consistency of the extrusion of the graphene is improved, the consistency of the density of the graphene after extrusion is improved, and the heat conducting performance of the graphene is further improved.
In some embodiments, the middle part of each transmission part is provided with a first limiting groove, the first limiting grooves on each transmission part incline from one end close to the axis of the chuck base 421 to one end far away from the axis of the chuck base 421 along the circumferential direction of the chuck base 421 in the same direction, and each first limiting groove is in an arc shape protruding in the direction opposite to the inclined direction. The transmission piece 422 is provided with a limiting protrusion which is in sliding fit with the corresponding first limiting groove, the limiting protrusion is inserted into the first limiting groove, and the side wall of the limiting protrusion is abutted with the side wall of the first limiting groove. In the process of rotating the chuck base 421, the limiting protrusion slides in the first limiting groove along the length direction of the first limiting groove, specifically, when the chuck base 421 rotates clockwise, one side wall of the first limiting groove is abutted against the limiting protrusion, the side wall pushes the transmission member 422 to move, and when the chuck base 421 rotates anticlockwise, the other side wall of the first limiting groove is abutted against the other side wall of the limiting protrusion, and the transmission member 422 is pushed to move through the side wall. The side wall of the first limiting groove pushes the transmission piece 422 and the extrusion plate 441 to move, when the rotation direction of the chuck base 421 is prevented from being changed, the consistency of the driving of the four extrusion plates 441 is affected, so that the acting force of the four extrusion plates 441 on graphene is inconsistent, in addition, the first limiting groove plays a role in guiding the movement of the transmitted piece 422, and the stability of the movement of the transmission piece 422 and the extrusion plate 441 is improved.
In other embodiments, the chuck base 421 is provided with a plurality of guide grooves 4211, the number of the guide grooves 4211 is the same as the number of the driving members 422, and the plurality of driving members 422 are slidably engaged with the plurality of guide grooves 4211 in a one-to-one correspondence.
As shown in fig. 3, the middle part of each transmission part is provided with a guide groove 4211, the guide grooves 4211 on each transmission part incline from one end close to the axis of the chuck base 421 to one end far away from the axis of the chuck base 421 along the circumferential direction of the chuck base 421, and each guide groove 4211 is in a protruding arc shape in a direction opposite to the inclined direction. The transmission member 422 is provided with guide wheels whose axes are arranged in the vertical direction, the diameter of the guide wheels being equal to the width of the corresponding guide grooves 4211. The guide wheel is mounted on the lower end of the corresponding transmission part and is in contact with the guide groove 4211, and the outer circumferential surface of the guide wheel is in contact with the side wall of the guide groove 4211 in the width direction. During the rotation of the chuck base 421, the guide wheel rolls along the length direction of the guide groove 4211 in the first limit groove. The guide wheel is pushed through the side wall of the guide groove 4211, so that the guide wheel drives the transmission member 422 and the extrusion plates 441 to move, the consistency of driving of the four extrusion plates 441 is influenced when the rotation direction of the chuck base 421 is prevented from being changed, the acting force of the four extrusion plates 441 on graphene is inconsistent, and in addition, the guide wheel is in sliding fit with the guide groove 4211, so that the stability of the movement of the transmission member 422 and the extrusion plates 441 is improved.
Further, the pressing mechanism 400 includes a pressing guide assembly 450, one end of the pressing guide assembly 450 is connected to the bearing assembly 430, and the other end of the pressing guide assembly 450 is connected to the driving member 422.
Specifically, the extrusion guiding assembly 450 includes guiding blocks, the number of the guiding blocks is the same as that of the driving pieces 422, and the guiding blocks are installed on each driving piece 422 in a one-to-one correspondence manner, the bearing assembly 430 is provided with four second limiting grooves, the length directions of which are in one-to-one correspondence with the movement directions of the four driving pieces 422, and each second limiting groove is internally provided with one guiding block which is located and is in sliding fit with the corresponding second limiting side wall. In the moving process of the transmission member 422, each guide block slides along the length direction of the corresponding second limiting groove, and the second limiting groove plays a role in guiding the movement of the transmission member 422, so that the stability of the movement of the transmission member 422 and the extrusion plate 441 is improved.
In other embodiments, the extrusion guide assembly 450 includes an extrusion guide 451 and an extrusion slider 452 slidably engaged with the extrusion guide 451, the extrusion guide 451 being coupled to the carrier assembly 430, the extrusion slider 452 being coupled to the transmission 422.
As shown in fig. 2, the number of the extrusion guiding assemblies 450 is four, one extrusion guiding assembly 450 is disposed between each transmission member 422 and each bearing assembly 430, each extrusion guiding assembly 450 is respectively connected with each bearing assembly 430 and the corresponding transmission member 422, specifically, the extrusion guiding rail 451 is fixedly mounted on the end surface of the bearing assembly 430 opposite to the transmission member 422 through a screw, the extrusion guiding rail 451 extends along the movement direction of the transmission member 422 opposite thereto, and the extrusion sliding block 452 is slidably matched with the extrusion guiding rail 451 and is mounted on the end surface of the transmission member 422 opposite to the extrusion guiding rail 451 through a screw. During the movement of the transmission member 422, the pressing slider 452 cooperates with the pressing guide 451 to guide the movement of the transmission member 422, thereby improving the stability of the movement of the transmission member 422 and the pressing plate 441.
Further, the bearing assembly 430 includes a mounting plate 431 and a bearing block 432 mounted to the mounting plate 431, and the compression plate 441 is slidably engaged with an upper end surface of the bearing block 432.
As shown in fig. 4, the mounting plate 431 and the bearing block 432 are both disposed in the horizontal direction, and the area of the square horizontal cross section of the bearing block 432 is smaller than the area of the square horizontal cross section of the mounting plate 431. The center of the mounting plate 431 is opposite to the center of the bearing block 432, the bearing block 432 is mounted to the upper end surface of the mounting plate 431 by bolts, and the four pressing plates 441 are located above the bearing block 432. At each edge of the mounting plate 431, a pressing rail 451 is mounted, and the pressing rail 451 extends in a length direction of the corresponding edge. The transmission member 422 includes a first connecting plate 4221 and a second connecting plate 4222 parallel to the first connecting plate 4221, the mounting plate 431 is located below the first connecting plate 4221, the compression plate 441 is mounted on an upper end surface of the first connecting plate 4221 by bolts, and the compression slider 452 matched with the compression guide 451 is mounted on a lower end surface of the first connecting plate 4221 by screws. The mounting plate 431 is disposed above the second connecting plate 4222, and the second connecting plate 4222 is provided with a guide wheel, and the guide wheel is disposed below the second connecting plate 4222. The first connecting plate 4221 and the second connecting plate 4222 are connected through four connecting rods 4223 located in four corner areas, and the four connecting rods 4223 are all arranged in the vertical direction. The mounting plate 431 is provided with four through grooves 4311 having the same length direction as the length direction of the four extrusion guide rails 451 in a one-to-one correspondence, and each through groove 4311 is located between the corresponding bearing block 432 and the extrusion guide rail 451. The four transmission members 422 are engaged with the four through grooves 4311 in a one-to-one correspondence, specifically, among the four connection rods 4223 of the transmission members 422, two connection rods 4223 pass through the through grooves 4311, and the other two connection rods 4223 are located on the side of the pressing guide rail 451 facing away from the bearing block 432. The mounting plate 431 supports the bearing blocks 432, the bearing blocks 432 support the graphene, and the above-mentioned matching mode of each transmission piece 422 and the mounting plate 431 realizes transmission movement and reduces occupied space.
In some embodiments, the driving assembly includes a rotary cylinder or a servo motor 411, and in this embodiment, the driving assembly includes a servo motor 411, and a driving shaft of the servo motor 411 is in driving connection with the chuck base 421.
As shown in fig. 2, the servo motor 411 is mounted on the motor base 412 by bolts, the motor base 412 is located below the mounting plate 431, the servo motor 411 is connected with a transmission shaft by a coupling 413, and the transmission shaft is fixedly connected with the chuck base 421. The drive shafts are rotatably coupled to bearing blocks 414 via bearings, and the bearing blocks 414 are mounted to the corresponding frame 100. The servo motor 411 drives the chuck base 421 to rotate around the axis of the chuck base 421 through the transmission shaft, so that the chuck base 421 drives the four extrusion plates 441 to be close to or far away from each other simultaneously, the servo motor 411 can realize real-time speed adjustment, and the speed gradually decreases from fast to slow in the process of extruding graphene, so that extruded tetragonal bodies are more uniform, and the density consistency is better.
Further, the pressure maintaining mechanism 300 comprises a pressure head 310 and a pressure head installation assembly, wherein the pressure head installation assembly and the extrusion piece are positioned on the same side of the bearing assembly 430, and the extrusion transmission assembly 420 is in transmission connection with the pressure head installation assembly; ram 310 is mounted to the opposite side of the ram mount assembly from the carrier assembly 430.
Further, the ram moving mechanism 200 includes a horizontal driving assembly and a vertical driving assembly, the horizontal driving assembly is in transmission connection with the vertical driving assembly, and the vertical driving assembly is in transmission connection with the ram mounting assembly.
In some embodiments, the horizontal drive assembly includes a horizontal drive motor and a horizontal transfer member, and the vertical drive assembly includes a vertical drive motor and a vertical transfer member. Specifically, the horizontal driving member is arranged along the horizontal direction, the horizontal driving motor is in transmission connection with the horizontal driving member, the horizontal driving member is in transmission connection with the vertical driving plate 212, the vertical driving motor and the vertical driving member are both installed on the vertical driving plate 212, the vertical driving member is arranged along the vertical direction, the vertical driving motor is in transmission connection with the vertical driving member, and the vertical driving member is in transmission connection with the pressure head installation assembly. The horizontal transmission assembly and the vertical transmission assembly can be belt transmission assemblies, chain transmission assemblies or ball screws and the like. The horizontal driving motor drives the horizontal transmission component to drive the vertical transmission plate 212, the vertical driving motor, the vertical transmission piece, the pressure head installation component and the pressure head 310 to move along the horizontal direction, and the vertical driving motor drives the vertical transmission piece to drive the pressure head installation component and the pressure head 310 to move along the vertical direction.
In this embodiment, as shown in fig. 7, the horizontal driving assembly includes a horizontal driving cylinder 211, the horizontal driving cylinder 211 is disposed along a horizontal direction, and a driving end of the horizontal driving cylinder 211 is connected with a vertical transmission plate 212. A horizontal guide rail 213 is arranged above and below the horizontal driving cylinder 211, the two horizontal guide rails 213 are arranged parallel to the horizontal driving cylinder 211, and a horizontal sliding block 214 in sliding fit with the two horizontal guide rails 213 is arranged on the surface of the vertical transmission plate 212 opposite to the horizontal guide rail 213. The vertical driving assembly comprises a vertical driving air cylinder 221, the vertical driving air cylinder 221 is arranged in the vertical direction and is arranged on the surface of the vertical transmission plate 212, which is away from the horizontal guide rail 213, a supporting plate 223 is fixedly arranged at the lower end of the cylinder body of the vertical driving air cylinder 221, the driving end of the vertical driving air cylinder 221 is positioned below the cylinder body of the vertical driving air cylinder 221 and penetrates through the supporting plate 223, the adapter plate 222 is arranged at the driving end of the vertical driving air cylinder 221, and the pressure head installation assembly is positioned on one side of the adapter plate 222, which is away from the vertical driving air cylinder 221. The upper end face of the adapter plate 222 is provided with two first guide rods 224 which are arranged along the vertical direction, the two first guide rods 224 are located on two sides of the vertical driving cylinder 221, two first bushings 225 are fixedly arranged on the supporting plate 223 through bolts, and the two first guide rods 224 penetrate through the adapter plate 222 and are in one-to-one sliding fit with the two first bushings 225. The horizontal driving cylinder 211 drives the vertical transmission plate 212 to drive the vertical driving cylinder 221, the pressure head mounting assembly and the pressure head 310 to move along the horizontal direction, and the horizontal sliding block 214 is in sliding fit with the corresponding horizontal guide rail 213, so that the stability of horizontal movement is improved; the vertical driving cylinder 221 drives the ram mounting assembly and the ram 310 to move in the vertical direction, and the first guide rod 224 is slidably engaged with the corresponding first bushing 225 to improve the stability of the ram mounting assembly and the ram 310 to move in the vertical direction.
The ram mount assembly is mounted to the lower end of the extrusion drive assembly 420. The pressing head 310 is flat plate-shaped and is arranged along the horizontal direction, and the pressing head 310 is mounted at the lower end of the pressing head mounting assembly through a bolt. The horizontal driving assembly is matched with the horizontal transmission assembly to drive the pressure head 310 to move towards the direction close to or far away from the bearing assembly 430, the pressure head 310 is matched with the bearing block 432 in the bearing assembly 430 to extrude the upper end face and the lower end face of the graphene, the pressure head 310 is in a flat plate shape, acting force of the pressure head 310 on the upper end face of the graphene is uniformly distributed, and accordingly consistency of density of the graphene after extrusion is improved.
Further, a rolling element is disposed on a surface of the ram 310 opposite to the bearing assembly 430, and the rolling element is movably connected to the ram 310.
In some embodiments, the lower end surface of the ram 310 is provided with a plurality of shaft rollers, the shaft rollers are distributed in four rows, the shaft rollers in four rows are oppositely arranged in a one-to-one correspondence with the four extrusion plates 441, the axes of the shaft rollers in each row are parallel to each other, and the axis of each row of shaft rollers is perpendicular to the movement direction of the opposite extrusion plates 441. When the pressure head 310 presses the graphene upwards, the four extrusion plates 441 simultaneously move towards the direction close to or far away from the graphene, the extrusion plates 441 drive the corresponding row of shaft rollers to rotate around the axis of the extrusion plates 441, so that rolling friction force is generated between the extrusion plates 441 and the shaft rollers, abrasion of the extrusion plates 441 is reduced, and the service life of the extrusion plates 441 is prolonged.
In other embodiments, the lower end surface of the ram 310 is provided with a plurality of balls 311, as shown in fig. 5, the balls 311 are distributed in four rows, the balls 311 in four rows are disposed opposite to the four squeeze plates 441 in a one-to-one correspondence, and the distribution direction of the balls 311 in each row is the same as the movement direction of the opposite squeeze plates 441. When the pressure head 310 presses the upper part of the graphene, the four extrusion plates 441 move towards the direction close to or far away from the graphene, the extrusion plates 441 drive the corresponding rows of balls 311 to rotate, so that rolling friction force is generated between the extrusion plates 441 and the balls 311, abrasion of the extrusion plates 441 is reduced, and the service life of the extrusion plates 441 is prolonged.
Further, the ram mounting assembly includes a first mounting plate 321 and a second mounting plate 322, the first mounting plate 321 is connected to the extrusion driving assembly 420, the second mounting plate 322 is located on a side of the first mounting plate 321 opposite to the bearing assembly 430, and is slidably connected to the first mounting plate 321, and the ram 310 is mounted on a side of the second mounting plate 322 opposite to the bearing assembly 430.
Further, a pressure sensor 330 is disposed between the first mounting plate 321 and the second mounting plate 322.
As shown in fig. 6, the first mounting plate 321 and the second mounting plate 322 are parallel to each other and are arranged at intervals, the first mounting plate 321 is mounted on the lower end surface of the adapter plate 222 through bolts, the second mounting plate 322 is located below the first mounting plate 321, four second guide rods 323 are arranged between the first mounting plate 321 and the second mounting plate 322, and the four second guide rods 323 are located in four corner areas and are all arranged along the vertical direction. Four second bushings 324 are fixedly arranged on the first mounting plate 321 through bolts, the four second bushings 324 are located in four corner areas, and four second guide rods 323 are in one-to-one sliding fit with the four second bushings 324. The pressure sensor 330 is located between the first mounting plate 321 and the second mounting plate 322, and is connected to the first mounting plate 321 and the second mounting plate 322 by bolts, respectively. When extruding graphene, the horizontal driving cylinder 211 drives the pressing head 310 to move to the upper part of the bearing block 432, the vertical driving cylinder 221 drives the pressing head 310 to move downwards, the pressing head 310 and the bearing block 432 are matched to extrude the graphene in the vertical direction, then the four extrusion plates 441 move towards the direction close to the graphene at the same time, the side edges of the graphene are extruded, the graphene is extruded into a tetragonal body, the four extrusion plates 441 move towards the direction far away from the graphene at the same time after the graphene is extruded into the tetragonal body, and after the pressing head 310 maintains the pressure on the graphene for 5 seconds, the vertical driving cylinder 221 drives the pressing head 310 to move upwards to finish the extrusion of the graphene.
When the graphene is extruded by the graphene fold body forming equipment provided by the embodiment of the invention, the graphene is placed on the bearing assembly 430, and the graphene is positioned in the extrusion area; the pressure head moving mechanism 200 drives the pressure maintaining mechanism 300 to move towards the direction close to the bearing assembly 430, and the pressure maintaining mechanism 300 is matched with the bearing assembly 430 to extrude graphene; the extrusion driving assembly drives the plurality of extrusion parts to move towards the direction close to the graphene simultaneously through the extrusion transmission assembly 420 so as to extrude the graphene; after extrusion is completed, the extrusion driving assembly drives the plurality of extrusion parts to move towards the direction far away from the graphene simultaneously through the extrusion transmission assembly 420, the extruded graphene is loosened, and after the pressure maintaining mechanism 300 maintains the pressure on the graphene, the pressure head 310 driving mechanism drives the pressure maintaining mechanism 300 to move towards the direction far away from the graphene.
Compared with the related art, the graphene fold body forming equipment provided by the embodiment of the invention drives the plurality of extrusion parts to extrude the graphene in the extrusion process, and is matched with the pressure maintaining mechanism 300, so that the stress on each side of the extruded graphene is uniform, the uniformity of graphene density distribution after extrusion forming is improved, and the uniform heat conduction performance of the graphene is improved, thereby improving the heat dissipation effect.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (7)
1. A graphene pleat body forming apparatus, comprising: the frame, its characterized in that still includes: the extrusion mechanism comprises an extrusion driving assembly, an extrusion transmission assembly, a bearing assembly and a plurality of extrusions, wherein the extrusion driving assembly is in transmission connection with the extrusion transmission assembly, the extrusion transmission assembly is respectively in transmission connection with the extrusions which enclose an extrusion area, and the extrusion driving assembly is used for driving the extrusion transmission assembly so that the extrusion transmission assembly drives the extrusions to be mutually close to or far away from each other;
the pressure head moving mechanism is in transmission connection with the pressure maintaining mechanism so as to drive the pressure maintaining mechanism to move in a direction approaching or separating from the bearing assembly;
the extrusion part comprises a plurality of extrusion plates, the extrusion plates are surrounded into the extrusion area along the circumference of the bearing assembly, and the extrusion transmission assembly is detachably connected with the extrusion plates respectively;
the extrusion transmission assembly comprises a chuck base and transmission pieces, and a plurality of transmission pieces, the number of which is equal to that of the extrusion pieces, are in transmission connection with a plurality of the extrusion pieces in a one-to-one correspondence manner;
the driving assembly is in transmission connection with the chuck base, the chuck base is respectively in transmission connection with a plurality of transmission pieces, and the driving assembly drives the chuck base so that the plurality of transmission pieces drive a plurality of extrusion pieces to be mutually close to or far away from each other at the same time;
the chuck base is provided with a plurality of guide grooves, the number of the guide grooves is the same as that of the transmission pieces, the guide grooves incline from one end close to the axis of the chuck base to one end far away from the axis of the chuck base along the circumferential direction of the chuck base, each guide groove is in an arc shape protruding in the direction opposite to the inclined direction, and the transmission pieces are in sliding fit with the guide grooves in a one-to-one correspondence manner;
the transmission piece is provided with a guide wheel with an axis arranged along the vertical direction, the diameter of the guide wheel is equal to the width of the corresponding guide groove, the guide wheel is matched with the guide groove, and the outer peripheral surface of the guide wheel is in contact with the side wall of the guide groove in the width direction.
2. The graphene pleat body molding apparatus according to claim 1, wherein the extrusion mechanism includes an extrusion guide assembly, one end of the extrusion guide assembly is connected to the bearing assembly, and the other end is connected to the transmission member.
3. The graphene pleat body forming device according to claim 1, wherein the pressure maintaining mechanism comprises a pressure head and a pressure head mounting assembly, the pressure head mounting assembly and the extrusion piece are positioned on the same side of the bearing assembly, and the extrusion transmission assembly is in transmission connection with the pressure head mounting assembly;
the ram is mounted to a side of the ram mounting assembly opposite the carrier assembly.
4. A graphene pleat forming device according to claim 3, wherein a rolling element is provided on a surface of the ram opposite to the bearing assembly, the rolling element being movably connected to the ram.
5. A graphene pleat body forming apparatus according to claim 3, wherein the ram mounting assembly comprises a first mounting plate and a second mounting plate, the first mounting plate being connected to the extrusion drive assembly, the second mounting plate being located on a side of the first mounting plate opposite the carrier assembly and being in sliding connection with the first mounting plate, the ram being mounted on a side of the second mounting plate opposite the carrier assembly.
6. The graphene pleat body forming apparatus according to claim 5, wherein a pressure sensor is provided between the first mounting plate and the second mounting plate.
7. A graphene pleat body forming apparatus according to claim 3, wherein the ram moving mechanism comprises a horizontal drive assembly and a vertical drive assembly, the horizontal drive assembly being in driving connection with the vertical drive assembly, the vertical drive assembly being in driving connection with the ram mounting assembly.
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| CN111634046B (en) * | 2020-06-10 | 2021-11-09 | 宁波石墨烯创新中心有限公司 | Carbon-based film compacting device and method |
| CN113482994B (en) * | 2021-07-02 | 2023-02-28 | 苏州赛腾精密电子股份有限公司 | Automatic pressure maintaining equipment and pressure maintaining method |
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