CN112109373A - Automatic aligning and leveling device for hot press - Google Patents

Automatic aligning and leveling device for hot press Download PDF

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Publication number
CN112109373A
CN112109373A CN202011082164.5A CN202011082164A CN112109373A CN 112109373 A CN112109373 A CN 112109373A CN 202011082164 A CN202011082164 A CN 202011082164A CN 112109373 A CN112109373 A CN 112109373A
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power generation
micro
leveling
pressure head
electric field
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CN112109373B (en
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刘欢
孙琦
王俊尧
高光泽
孙功臣
李云鹏
陈星宇
王锐
郎天鸿
崔博文
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Northeast Electric Power University
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Northeast Dianli University
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/007—Means for maintaining the press table, the press platen or the press ram against tilting or deflection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
    • B01L3/502—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures
    • B01L3/5027—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip
    • B01L3/502707—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip characterised by the manufacture of the container or its components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B81—MICROSTRUCTURAL TECHNOLOGY
    • B81C—PROCESSES OR APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OR TREATMENT OF MICROSTRUCTURAL DEVICES OR SYSTEMS
    • B81C3/00—Assembling of devices or systems from individually processed components
    • B81C3/001—Bonding of two components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y40/00—Manufacture or treatment of nanostructures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
    • B01L2200/10—Integrating sample preparation and analysis in single entity, e.g. lab-on-a-chip concept
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2300/00—Additional constructional details
    • B01L2300/08—Geometry, shape and general structure
    • B01L2300/0887—Laminated structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2300/00—Additional constructional details
    • B01L2300/12—Specific details about materials

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  • Engineering & Computer Science (AREA)
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Abstract

The invention provides an automatic alignment leveling device of a hot press, which comprises a nano power generation detection mechanism and an automatic alignment leveling mechanism. The nanometer power generation detection mechanism comprises an upper vertical support, a lower vertical support, a rigid support, a nanometer power generation film and the like, and is used for detecting whether an upper pressure head and a lower pressure head are relatively parallel in the action process of the hot press. The automatic alignment leveling mechanism comprises a support, a piezoelectric ceramic motor, a transmission gear and the like and is used for realizing the leveling action of the lower pressure head. The detection method utilizes the principle of electrostatic induction to enable electrons to move so as to generate micro-current, and realizes the detection of whether the upper pressure head and the lower pressure head of the hot press are parallel or not through the detection of the micro-current. The automatic alignment leveling device for the hot press has the advantages of high leveling efficiency, low long-term use cost and high leveling accuracy, and is suitable for dynamic leveling of the hot press.

Description

Automatic aligning and leveling device for hot press
Technical Field
The invention relates to the field of micro-motion leveling processing, in particular to a leveling device for a press for manufacturing a micro-fluidic chip.
Background
The microfluidic chip analysis takes a chip as an operation platform, is based on analytical chemistry, is based on a micro-electromechanical processing technology, takes a micro-pipeline network as a structural characteristic, takes life science as a main application object at present, has the characteristics of controllable liquid flow, extremely less consumed samples and reagents, ten-fold or hundred-fold improvement of analysis speed and the like, and is widely applied to the aspects of DNA analysis, drug screening, cell operation, immunological determination and the like.
An important fabrication method of microfluidic chips is the hot pressing method. The production capacity of the hot press determines the yield of the microfluidic chip, and the technical level of the hot press also determines the quality of the microfluidic chip to a great extent. The production quality of the microfluidic chip is closely related to the technical level of the hot press.
Generally, a hot pressing process is used for manufacturing a chip for a high polymer material with better thermoplasticity. The relative balance of the upper pressure head and the lower pressure head of the hot press in the processing process influences the quality of the produced chip. The existing adjusting modes of the parallelism of the hot pressing head comprise a ball clamping type, a spring floating type and the like. The clamping ball type adjusting device is simple in clamping ball type adjusting, low in cost, large in size, poor in heat dissipation, changed in parallelism after locking and the like, and cannot be ignored; the floating type spring is convenient to adjust when the volume is slightly smaller, but the spring vibrates in the pressing and pasting process with large load, high temperature and high frequency, and the parallelism is unstable due to insufficient rigidity of the whole body; the novel parallelism adjusting device such as a wedge-shaped rotating leveling mechanism is small in size, but a large amount of data need to be measured manually in the adjusting process, the rotating angle is calculated, and the efficiency is low.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a hot press automatic alignment leveling device.
An automatic alignment leveling device of a hot press comprises an automatic alignment leveling mechanism and a nano power generation detection mechanism, wherein the nano power generation detection mechanism comprises an upper vertical support, a lower vertical support, a rigid support, a nano power generation film, a gasket, a nano power generation friction plate, an elastic sheet, a micro current detection needle and a plurality of slotted round head screws, the upper vertical supports of the nano power generation detection mechanisms are respectively arranged at different positions of a hot pressing plate of an upper pressing head of the hot press, the lower vertical supports of the nano power generation detection mechanisms are respectively arranged at different positions of the hot pressing plate of the upper pressing head and the lower pressing head of the hot press, the automatic alignment leveling mechanism comprises a support, a piezoelectric ceramic motor, a transmission gear, a micro current signal receiving processor and a lead screw, the nano power generation detection mechanism obtains energy through the relative motion of the upper pressing head and the lower pressing head during working and converts the, the signal is received and processed and then transmitted to the automatic aligning and leveling mechanism, and the automatic aligning and leveling mechanism adjusts the parallelism of the lower pressure head by adjusting the micro-motion speed of the plurality of piezoelectric ceramic motors, so that the automatic aligning and leveling mechanism is aligned and leveled with the upper pressure head.
In one embodiment of the present invention,
the upper vertical support and the lower vertical support of the nanometer power generation detection mechanism are respectively positioned at four opposite angles of the upper pressure head and the lower pressure head, and the upper vertical support and the lower vertical support are used for ensuring that the upper part and the lower part of the nanometer power generation detection mechanism are respectively vertical to the working surfaces of the upper pressure head and the lower pressure head.
In one embodiment of the present invention,
the rigid support is located on the upper vertical support and is fixed on the upper vertical support through a slotted round head screw, the rigid support can be made of metal materials, static induction can be generated, and the efficiency of nanometer friction power generation is guaranteed.
In one embodiment of the present invention,
the nanometer power generation film is located on the rigid support, the nanometer power generation film is divided into two parts, the nanometer power generation film and the nanometer friction layer are arranged, the nanometer power generation film is a mixed coating and a copper coating which are made of PMMA and plastic microspheres, the mixed coating of PMMA and plastic microspheres covers the rigid support as a base layer, and the copper coating is a short piece and is distributed on the mixed coating of PMMA and plastic microspheres at intervals. The nano friction layer is made of insulating material and can also be made of a mixed coating of PMMA and plastic microspheres.
In one embodiment of the present invention,
the gasket is positioned on the lower vertical support and made of insulating materials and used for reducing loss of electrons during friction nano power generation, and normal operation of nano power generation is guaranteed.
In one embodiment of the present invention,
the solar cell further comprises a nanometer power generation friction plate, and the nanometer power generation friction plate is located on the gasket. The electron transfer occurs through the mutual movement of the upper and lower pressure heads during working and the friction of the nanometer friction layer.
In one embodiment of the present invention,
the nanometer power generation friction plate is characterized by further comprising an elastic sheet, wherein the elastic sheet is positioned on the lower vertical support and used for ensuring that the nanometer power generation friction plate is in close contact with the nanometer friction layer.
In one embodiment of the present invention,
the micro-current detection needle is positioned on the lower vertical support, and the elastic sheet ensures that the micro-current detection needle is in close contact with the upper nanometer power generation film to output a nanometer micro-current signal.
In one embodiment of the present invention,
a method for generating nano friction electricity generation of micro current signals is characterized in that the method for generating micro current comprises the following steps:
the first step is as follows: nano-friction transfers electrons. The nanometer power generation friction plate rubs and transfers electrons on a mixed coating made of PMMA and plastic microspheres, and then an electric field is excited, wherein the electric field intensity is as follows:
Figure BDA0002719001410000031
Figure BDA0002719001410000032
where E is the electric field strength, S is the area, Q is the amount of charge,ris the dielectric constant of the object and is,0is the dielectric constant in vacuum.
The second step is that: the copper plating layers distributed at intervals are communicated in an electric field to realize electron transfer. After the first pair of copper coatings which are distributed at intervals are communicated, electron movement is realized in the electric field excited in the first step, and the charge transfer is as follows:
after the first pair of spaced copper plating layers are communicated, under the action of an electric field excited by Q0, electrons in the first pair of spaced copper plating layers begin to transfer to generate another electric field, namely:
Figure BDA0002719001410000033
wherein the transferred charge Q represents only the amount of charge, independent of the electrical property.
The third step: when the nano power generation detection mechanism continuously moves, the second pair of copper coatings distributed at intervals are communicated in the electric field to realize electron transfer again. The charge transfer is as follows:
Figure BDA0002719001410000034
under the same conditions, the electric field intensity of Q0 excitation is not changed, namely:
EA2＝EA0＝EA1
this gives:
QA2＝2×QA1
the fourth step: similarly, when the nano power generation detection mechanism continues to move, the third pair of copper coatings distributed at intervals are communicated in the electric field, and the electron transfer is realized inside the electric field, wherein the charge transfer is as follows:
Figure BDA0002719001410000041
the electric field intensity of the Q0 excitation is not changed under the same condition, namely:
EA3＝EA0＝EA1
this gives:
QA3＝QA2+QA1
QA3＝3×QA1
the fifth step: and collecting micro-current signals, and detecting alignment and leveling. The first, second and third steps show that under the same condition and without external interference, the electron amount transferred by each micro-current is increased in sequence, and the transfer frequency is related to the relative movement rate of the upper and lower pressure heads.
In one embodiment of the present invention,
the piezoelectric ceramic motors receive the electric signals from the micro-current signal receiving processor, and micro-adjust the relative parallelism of the lower pressure head through different operating speeds so as to be parallel to the upper pressure head.
In one embodiment of the present invention,
the ceramic pressing head is characterized by further comprising a plurality of lead screws, wherein the ceramic motors are connected through gears and transmit force to the lead screws, so that micro motion of the pressing head is achieved, and the pressing head is kept relatively parallel to the upper pressing head.
The invention has the beneficial effects that:
the invention can be adjusted when the hot press works, thereby saving the traditional link of repeated manual adjustment and improving the efficiency.
Drawings
The preferred embodiments of the invention are described in further detail below.
Fig. 1 is a schematic structural diagram of a hot press automatic alignment leveling device of the present invention.
Fig. 2 is a schematic diagram of a nano-meter generation detection mechanism.
FIG. 3 is a schematic view of a self-aligning leveling mechanism.
Fig. 4 and 5 are schematic diagrams of the nano-meter generation detection mechanism.
The device comprises a nanometer power generation detection mechanism 1, an automatic alignment leveling mechanism 2, a hot press upper pressure head 3, a hot press upper pressure head 4, an upper vertical support 5, a nanometer power generation friction plate and a gasket 6, a lower vertical support 7, an upper nanometer power generation thin film 8, a nanometer friction layer 9, a rigid support 10, a slotted round head screw 11, a slotted round head screw 12, a micro-current detection needle 13, an elastic gasket 14, a support 15, a transmission gear 16, a piezoelectric ceramic motor 17 and a lead screw 18.
Detailed Description
The invention comprises a nano power generation detection mechanism and an automatic alignment leveling mechanism, for example, fig. 2 is a schematic diagram of the nano power generation detection mechanism, and fig. 3 is a schematic diagram of the automatic alignment leveling mechanism. The nanometer power generation detection mechanism comprises an upper vertical support, a lower vertical support, a rigid support, a nanometer power generation film and the like, and is characterized in that the nanometer power generation detection mechanism is used for detecting whether an upper pressure head and a lower pressure head are relatively parallel or not in the action process of the hot press. The automatic alignment leveling mechanism comprises a support, a piezoelectric ceramic motor, a transmission gear and the like, and is characterized in that the automatic alignment leveling mechanism is used for realizing the leveling action of the lower pressure head. The nano power generation detection mechanism and the automatic alignment leveling mechanism are both fixed on the hot press, and the nano power generation detection mechanism is fixed by a slotted round head screw.
The nanometer power generation detection mechanism comprises an upper vertical support, a lower vertical support and a rigid support, the nanometer power generation film is fixed on the rigid support, the nanometer power generation friction plate is fixed on the gasket, and the elastic sheet ensures that the nanometer power generation film is in close contact with the nanometer power generation friction plate. The micro-current generated by friction is detected by a micro-current detection needle, and the upper vertical support and the lower vertical support are fixed on the hot press by a plurality of slotted round-head screws.
The piezoelectric ceramic motor of the automatic aligning and leveling mechanism is fixed on a support, and the lead screw receives the input torque of the piezoelectric ceramic motor through a transmission gear. The micro-motion speeds of a plurality of piezoelectric ceramic motors are adjusted by receiving the processed micro-current signals, so that the parallelism of the lower pressure head is adjusted, and the alignment and leveling with the upper pressure head are realized.
A method for generating nano friction electricity generation of micro current signals is characterized in that the method for generating micro current comprises the following steps:
the first step is as follows: nano-friction transfers electrons. The nanometer power generation friction plate rubs and transfers electrons on a mixed coating made of PMMA and plastic microspheres, and then an electric field is excited, wherein the electric field intensity is as follows:
Figure BDA0002719001410000061
where E is the electric field strength, S is the area, Q is the amount of charge,ris the dielectric constant of the object and is,0is the dielectric constant in vacuum.
The second step is that: the copper plating layers distributed at intervals are communicated in an electric field to realize electron transfer. After the first group of copper coatings which are distributed at intervals are communicated, electron movement is realized in the electric field excited in the first step, and the charge transfer is as follows:
after the first group of copper coatings which are distributed at intervals are communicated, the first group of copper coatings is connected with the second group of copper coatings at QA0Under the action of the excited electric field, the electrons in the electron transfer to generate another electric field, namely:
Figure BDA0002719001410000062
wherein the transferred charge Q represents only the amount of charge, independent of the electrical property.
The third step: when the nano power generation detection mechanism continuously moves, the second group of copper coatings distributed at intervals are communicated in the electric field to realize electron transfer again. The charge transfer is as follows:
Figure BDA0002719001410000063
q under the same conditionsA0The strength of the electric field of the excitation is not changed,namely:
EA2＝EA0＝EA1
this gives: qA2＝2×QA1
The fourth step: similarly, when the nano power generation detection mechanism continues to move, the third group of copper coatings distributed at intervals are communicated in the electric field, and the electron transfer is realized inside, wherein the charge transfer is as follows:
Figure BDA0002719001410000064
and, Q under the same conditionsA0The strength of the excited electric field is unchanged, namely: eA3＝EA0＝EA1
This gives: qA3＝QA2+QA1
QA3＝3×QA1
The fifth step: the first, second and third steps show that the electron transfer frequency is related to the relative movement rate of the upper and lower pressure heads, and four groups of electron quantities transferred by micro-current can be collected simultaneously under the same condition and without external interference. When the four groups of micro-current signals are the same, namely QAX＝QBX+QCXAnd realizing alignment leveling.
Wherein X represents the same natural number.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. To those skilled in the art to which the invention relates, numerous changes, substitutions and alterations can be made without departing from the spirit of the invention, and these changes are deemed to be within the scope of the invention as defined by the appended claims.

Claims (4)

1. An automatic aligning and leveling device of a hot press comprises a nano power generation detection mechanism, an automatic aligning and leveling mechanism and a nano friction power generation method for generating micro-current signals. The nanometer power generation detection mechanism comprises an upper vertical support, a lower vertical support, a rigid support, a nanometer power generation film, a gasket, a nanometer power generation friction plate, an elastic sheet, a micro-current detection pin and a plurality of slotted round-head screws, and is used for detecting whether an upper pressure head and a lower pressure head are relatively parallel or not in the action process of the hot press. The automatic alignment leveling mechanism comprises a support, a piezoelectric ceramic motor, a transmission gear and a lead screw and is used for realizing the leveling action of the lower pressure head.
2. The nano power generation detection mechanism according to claim 1, wherein the nano power generation detection mechanism obtains energy through relative motion of an upper pressure head and a lower pressure head during operation, a nano power generation friction plate and a nano power generation film rub to transfer electrons to form electric potential, copper films are attached to the other side of the nano power generation film at intervals, communicated micro current detection pins are in contact with different copper films to generate electrostatic induction electrons to flow between the two micro current detection pins to generate micro current, and parallelism of the upper pressure head and the lower pressure head is detected through micro current signals.
3. The automatic aligning and leveling mechanism of the automatic aligning and leveling device of the hot press according to claim 1, wherein the automatic aligning and leveling mechanism is used for leveling by adjusting the micro-motion speed of the piezoelectric ceramic motors, and the micro-motion speed of the piezoelectric ceramic motors is adjusted by receiving the processed micro-current signals, so that the parallelism of the lower pressure head is adjusted, and the alignment and leveling with the upper pressure head is realized.
4. A method for generating nano friction electricity generation of micro current signals is characterized in that the method for generating micro current comprises the following steps:
the first step is as follows: nano-friction transfers electrons. The nanometer power generation friction plate rubs and transfers electrons on a mixed coating made of PMMA and plastic microspheres, and then an electric field is excited, wherein the electric field intensity is as follows:
Figure FDA0002719001400000011
where E is the electric field strength, S is the area, Q is the amount of charge,ris the dielectric constant of the object and is,0is the dielectric constant in vacuum.
The second step is that: the copper plating layers distributed at intervals are communicated in an electric field to realize electron transfer. After the first group of copper coatings which are distributed at intervals are communicated, electron movement is realized in the electric field excited in the first step, and the charge transfer is as follows:
after the first group of copper coatings which are distributed at intervals are communicated, the first group of copper coatings is connected with the second group of copper coatings at QA0Under the action of the excited electric field, the electrons in the electron transfer to generate another electric field, namely:
Figure FDA0002719001400000012
wherein the transferred charge Q represents only the amount of charge, independent of the electrical property.
The third step: when the nano power generation detection mechanism continuously moves, the second group of copper coatings distributed at intervals are communicated in the electric field to realize electron transfer again. The charge transfer is as follows:
Figure FDA0002719001400000021
q under the same conditionsA0The strength of the excited electric field is unchanged, namely:
EA2＝EA0＝EA1
this gives:
QA2＝2×QA1
the fourth step: similarly, when the nano power generation detection mechanism continues to move, the third group of copper coatings distributed at intervals are communicated in the electric field, and the electron transfer is realized inside, wherein the charge transfer is as follows:
Figure FDA0002719001400000022
and, Q under the same conditionsA0The strength of the excited electric field is unchanged, namely:
EA3＝EA0＝EA1
this gives:
QA3＝QA2+QA1
QA3＝3×QA1
the fifth step: the first, second and third steps show that the electron transfer frequency is related to the relative movement rate of the upper and lower pressure heads, and four groups of electron quantities transferred by micro-current can be collected simultaneously under the same condition and without external interference. When the four groups of micro-current signals are the same, namely QAX＝QBX+QCXAnd realizing alignment leveling.
Wherein X represents the same natural number.
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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4240778A (en) * 1979-08-27 1980-12-23 Efco, Inc. System for providing for parallelism in fluid powered press or the like
DE4037281A1 (en) * 1989-12-11 1991-06-13 Erfurt Umformtechnik Gmbh Large area accurate plastics press - has hydraulic layout with high speed low load toggles and pressure system with device s to detect and correct deviations from parallelism
CN101011870A (en) * 2007-02-03 2007-08-08 中国电子科技集团公司第二研究所 Mechanism for regulating pressure head parallelism
CN203765160U (en) * 2014-04-03 2014-08-13 华为技术有限公司 Hot press leveling structure
CN104369408A (en) * 2014-10-13 2015-02-25 华中科技大学 Hot-pressing curing device for manufacturing ultrahigh-frequency RFID label
CN104385669A (en) * 2014-10-13 2015-03-04 华中科技大学 Hot pressing head with heightening and leveling functions
CN109572040A (en) * 2018-10-29 2019-04-05 东北电力大学 A kind of hot press pressurized head systems
JP6549810B1 (en) * 2019-03-11 2019-07-24 旭精機工業株式会社 Press machine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4240778A (en) * 1979-08-27 1980-12-23 Efco, Inc. System for providing for parallelism in fluid powered press or the like
DE4037281A1 (en) * 1989-12-11 1991-06-13 Erfurt Umformtechnik Gmbh Large area accurate plastics press - has hydraulic layout with high speed low load toggles and pressure system with device s to detect and correct deviations from parallelism
CN101011870A (en) * 2007-02-03 2007-08-08 中国电子科技集团公司第二研究所 Mechanism for regulating pressure head parallelism
CN203765160U (en) * 2014-04-03 2014-08-13 华为技术有限公司 Hot press leveling structure
CN104369408A (en) * 2014-10-13 2015-02-25 华中科技大学 Hot-pressing curing device for manufacturing ultrahigh-frequency RFID label
CN104385669A (en) * 2014-10-13 2015-03-04 华中科技大学 Hot pressing head with heightening and leveling functions
CN109572040A (en) * 2018-10-29 2019-04-05 东北电力大学 A kind of hot press pressurized head systems
JP6549810B1 (en) * 2019-03-11 2019-07-24 旭精機工業株式会社 Press machine

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