CN115139506A - Polymer reducing capillary tube forming and cutting integrated system and implementation method thereof - Google Patents
Polymer reducing capillary tube forming and cutting integrated system and implementation method thereof Download PDFInfo
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- CN115139506A CN115139506A CN202210586269.7A CN202210586269A CN115139506A CN 115139506 A CN115139506 A CN 115139506A CN 202210586269 A CN202210586269 A CN 202210586269A CN 115139506 A CN115139506 A CN 115139506A
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- 238000005520 cutting process Methods 0.000 title claims abstract description 107
- 229920000642 polymer Polymers 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 36
- 230000008569 process Effects 0.000 claims abstract description 19
- 238000007493 shaping process Methods 0.000 claims abstract description 14
- 238000003754 machining Methods 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims description 53
- 238000001816 cooling Methods 0.000 claims description 44
- 238000000465 moulding Methods 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000010354 integration Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- -1 Polytetrafluoroethylene Polymers 0.000 description 3
- 239000004812 Fluorinated ethylene propylene Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000009477 glass transition Effects 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 229920009441 perflouroethylene propylene Polymers 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229920000891 common polymer Polymers 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000000608 laser ablation Methods 0.000 description 1
- 239000012567 medical 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
- 238000000206 photolithography Methods 0.000 description 1
- 238000010094 polymer processing Methods 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002522 swelling effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/22—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
- B29C69/001—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore a shaping technique combined with cutting, e.g. in parts or slices combined with rearranging and joining the cut parts
Abstract
The invention discloses a polymer reducing capillary tube forming and cutting integrated system and an implementation method thereof.A control module triggers a control signal according to a preset parameter signal; the capillary tube is preheated by the preheating module according to the control signal, further shaping the capillary tube into a straight tube bundle; forming the preheated capillary tube by a forming module according to the control signal; cutting the formed capillary tube through a cutting module according to the control signal, and cutting and collecting the machined and formed variable-diameter capillary tube; and the control module is used for controlling the feeding processes of the first feeding traction device and the second feeding traction device to assist the diameter-changing machining of the capillary tube. The invention realizes the forming and cutting integration of the full-automatic polymer reducing capillary, reduces manual operation, reduces production cost, realizes diversified processing modes through PLC program control, and can be widely applied to the technical field of polymer pipeline processing.
Description
Technical Field
The invention relates to the technical field of polymer pipeline processing, in particular to a polymer reducing capillary forming and cutting integrated system and an implementation method thereof.
Background
The microfluidic technology requires the preparation of a microchannel on a chip, common methods include photolithography, engraving by a numerical control machine, laser ablation, nanoimprint, injection molding and the like, and the microchannel is prepared into a complete chip by bonding an encapsulation material. Materials used for microfluidic chips generally require high hydrophobicity to reduce fluid resistance, prevent clogging, and ensure smooth passage of fluids in a pipeline. If the material itself does not have hydrophobic properties, additional hydrophobic treatment is required, the process is complicated, and the cost is increased.
Some commercial polymer capillaries, such as Polytetrafluoroethylene (PTFE), polyvinyl chloride (PVC), and Fluorinated Ethylene Propylene (FEP) capillaries, have excellent hydrophobicity and very low production cost. However, the existing polymer capillary is generally prepared by an extrusion molding process, and is limited by the processing precision of a die and the extrusion swelling effect of a polymer, and the minimum inner diameter of the common polymer capillary on the market is hundreds of micrometers, so that the application requirement of the precision control of the microfluidic technology cannot be met. Therefore, the commercial capillary tube needs to be formed into a micro-channel with the inner diameter of tens of microns through secondary processing, the control precision of the micro-channel is improved, meanwhile, the micro-channel can be set into any three-dimensional structure, and the micro-channel has great application potential in the micro-fluidic technology.
In order to produce high-precision polymer capillary micro-channels on a large scale, the prior art realizes the automatic batch production of polymer capillaries by the logic control of a heating module and a stepping motor module, and the polymer capillaries are wound on rollers. However, in the process of winding the processed pipeline on the roller, the pipeline is necessarily bent and deformed slightly, and is easy to form creases, so that the uniformity of the inner pipe diameter of the capillary is influenced, and the flow resistance of the micro-channel is further influenced. In addition, when the capillary tube after processing and rolling is actually applied, the capillary tube needs to be cut after being unwound from the rolling roller, the process is complex, and the time cost is increased.
Disclosure of Invention
In view of this, the embodiment of the invention provides a polymer reducing capillary forming and cutting integrated system with high efficiency, low cost and stable processing, and an implementation method thereof.
In a first aspect, an embodiment of the present invention provides an integrated system for forming and cutting a polymer reducing capillary, including:
the control module is used for triggering a control signal according to a preset parameter signal and sending the control signal to the preheating processing module, the forming module and the cutting module;
the preheating module is used for preheating the capillary according to the control signal of the control module so as to shape the capillary into a straight tube bundle;
the forming module is used for forming the capillary after the preheating treatment according to the control signal of the control module, and the forming treatment comprises heating treatment and cooling treatment; the heating treatment is used for assisting the diameter-changing processing of the capillary tube, and the cooling treatment is used for cooling and shaping the capillary tube after the diameter-changing processing is finished;
the cutting module is used for cutting the formed capillary according to the control signal of the control module and cutting and collecting the machined and formed variable diameter capillary;
the preheating module is provided with a first feeding traction device, the cutting module is provided with a second feeding traction device, and the control module is further used for controlling the feeding processes of the first feeding traction device and the second feeding traction device to assist in capillary diameter-changing machining.
And the device further comprises a feeding support, wherein the feeding support is used for arranging the capillary tube reel and winding and unwinding the capillary tube to be processed.
Further, the feeding support, the preheating processing module, the forming module and the cutting module are sequentially arranged on a fixed base;
the control module is arranged on one side of the fixed base;
the signal processing system is respectively connected with the preheating processing module, the forming module and the cutting module.
Further, the preheating treatment module comprises a feed conduit and a preheating mold; the feeding guide pipe, the preheating mould and the first feeding traction device are linearly arranged; the preheating die and the first feeding traction device are both connected with the control module;
the feeding guide pipe is used for correcting and guiding the feeding direction;
the first feeding traction device is used for controlling the feeding speed, the feeding direction and the delay time of the capillary tube according to the control signal of the control module;
the preheating mould is used for preheating and shaping the capillary tube.
Further, the molding module comprises a heating table, a heating mold and a cooling mold; the heating mould and the cooling mould are arranged on the heating table side by side, and the heating table is connected with the control module;
and the heating table is used for transferring heat to the heating die and the cooling die according to the control signal of the control module.
Further, the cutting module comprises a feeding conduit, a second feeding traction device, a cutting tool and a collecting hopper; the feeding conduit, the second feeding traction device, the cutting tool and the collecting hopper are linearly arranged; the second feeding traction device and the cutting tool are both connected with the control module;
the feeding guide pipe is used for correcting and guiding the feeding direction;
the second feeding traction device is used for controlling the feeding speed, the feeding direction and the delay time of the capillary tube according to the control signal of the control module;
the cutting tool is used for controlling the cutting rate according to the control signal of the control module;
the collection hopper is used for collecting the cut capillary.
Further, the control module is provided with a button, and the button is used for receiving a preset parameter setting instruction sent by a user and triggering a corresponding preset parameter signal according to the preset parameter setting instruction.
In a second aspect, an embodiment of the present invention further provides an implementation method of a polymer reducing capillary forming and cutting integrated system, including the following steps:
according to the presetting by the control module the parameter signal triggers a control signal;
preheating the capillary tube by a preheating module according to the control signal so as to shape the capillary tube into a straight tube bundle;
forming the preheated capillary tube by a forming module according to a control signal, wherein the forming treatment comprises heating treatment and cooling treatment; the heating treatment is used for assisting the diameter-changing processing of the capillary tube, and the cooling treatment is used for cooling and shaping the capillary tube after the diameter-changing processing is finished;
cutting the formed capillary tube by a cutting module according to the control signal, and cutting and collecting the machined and formed variable-diameter capillary tube;
the cutting module is provided with a first feeding traction device, the cutting module is provided with a second feeding traction device, and the capillary reducing machining is assisted in the feeding process of the first feeding traction device and the feeding process of the second feeding traction device under the control of the control module.
Further, the step of triggering the control signal by the control module according to the preset parameter signal includes at least one of:
triggering a control signal of the preheating temperature of the preheating module;
triggering control signals of the heating temperature and the cooling temperature of the molding module;
and triggering a control signal of the cutting rate of the cutting module.
Further, the step of controlling the feeding process of the first feeding traction device and the second feeding traction device through the control module comprises:
controlling the feeding speed, the feeding direction and the delay time of the first traction device;
and controlling the feeding speed, the feeding direction and the delay time of the second traction device.
One or more of the above-described embodiments of the present invention have the following advantages: the embodiment of the invention firstly triggers a control signal through a control module according to a preset parameter signal; the capillary tube is preheated by the preheating module according to the control signal of the control module, so that the capillary tube is shaped into a straight tube bundle; then, the forming module is used for forming the capillary tube after the preheating treatment according to the control signal of the control module; in addition, the cutting module is used for cutting the formed capillary according to the control signal of the control module, and cutting and collecting the machined and formed variable diameter capillary; in addition, the capillary tube diameter-changing machining is assisted in the feeding process of the first feeding traction device and the second feeding traction device under the control of the control module. The full-automatic forming and cutting integrated device can realize the full-automatic forming and cutting integration of the polymer variable-diameter capillary, reduce manual operation, reduce production cost, and realize diversified processing modes by controlling each functional module of the system through the control module.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of a polymer reducing capillary forming and cutting integrated system according to the present invention;
FIG. 2 is a schematic structural diagram of a preheating module of the polymer reducing capillary tube forming and cutting integrated system according to the present invention;
fig. 3 is a schematic structural diagram of a cutting module of the polymer reducing capillary forming and cutting integrated system according to the present invention.
Detailed Description
The invention will be further explained and explained with reference to the drawings and the embodiments in the description. The step numbers in the embodiments of the present invention are set for convenience of illustration only, the order between the steps is not limited at all, and the execution order of each step in the embodiments can be adaptively adjusted according to the understanding of those skilled in the art.
In order to make the content and technical solution of the present application more clear, the related terms and meanings are explained as follows:
capillary tube: of very small internal diameter the tube is called a "capillary tube". Generally, a capillary tube having an inner diameter of 1 mm or less is called a capillary tube because the tube diameter is thin like hair. At present, the method is mainly applied to medical and building materials.
Processing of the polymer: the polymer processing means that the polymer is deformed into a required shape at a high speed in a short time under a proper temperature condition by utilizing the temperature dependence of the polymer material molecular chain relaxation process and the assistance of an external force, and finally, the final product is obtained by cooling and shaping.
In a first aspect, an embodiment of the present invention provides an integrated system for forming and cutting a polymer reducing capillary, including:
the control module is used for triggering a control signal according to a preset parameter signal and sending the control signal to the preheating processing module, the forming module and the cutting module;
the preheating module is used for carrying out preheating treatment on the capillary tube according to the control signal of the control module so as to shape the capillary tube into a straight tube bundle;
the forming module is used for forming the capillary after the preheating treatment according to the control signal of the control module, and the forming treatment comprises heating treatment and cooling treatment; the heating treatment is used for assisting the diameter-changing processing of the capillary tube, and the cooling treatment is used for cooling and shaping the capillary tube after the diameter-changing processing is finished;
the cutting module is used for cutting the formed capillary according to the control signal of the control module and cutting and collecting the machined and formed variable diameter capillary;
the preheating module is provided with a first feeding traction device, the cutting module is provided with a second feeding traction device, and the control module is further used for controlling the feeding processes of the first feeding traction device and the second feeding traction device to assist in capillary diameter-changing machining.
The device further comprises a feeding support, wherein the feeding support is used for arranging a capillary tube reel and winding and unwinding the capillary tube to be processed.
Further, the feeding support, the preheating processing module, the forming module and the cutting module are sequentially arranged on a fixed base;
the control module is arranged on one side of the fixed base;
the signal processing system is respectively connected with the preheating processing module, the forming module and the cutting module.
Further, in the present invention, the preheating treatment module comprises a feeding conduit and a preheating mould; the feeding guide pipe, the preheating mould and the first feeding traction device are linearly arranged; the preheating mould and the first feeding traction device are both connected with the control module;
the feeding guide pipe is used for correcting and guiding the feeding direction;
the first feeding traction device is used for controlling the feeding speed, the feeding direction and the delay time of the capillary according to the control signal of the control module;
the preheating mould is used for preheating and shaping the capillary tube.
Further, the molding module comprises a heating table, a heating mold and a cooling mold; the heating mould and the cooling mould are arranged on the heating table side by side, and the heating table is connected with the control module;
and the heating table is used for transferring heat to the heating die and the cooling die according to the control signal of the control module.
Further, the cutting module comprises a feeding conduit, a second feeding traction device, a cutting tool and a collecting hopper; the feeding conduit, the second feeding traction device, the cutting tool and the collecting hopper are linearly arranged; the second feeding traction device and the cutting tool are both connected with the control module;
the feeding guide pipe is used for correcting and guiding the feeding direction;
the second feeding traction device is used for controlling the feeding speed, the feeding direction and the delay time of the capillary according to the control signal of the control module;
the cutting tool is used for controlling the cutting rate according to the control signal of the control module;
the collection hopper is used for collecting the cut capillary.
Further, the control module is provided with a button, and the button is used for receiving a preset parameter setting instruction sent by a user and triggering a corresponding preset parameter signal according to the preset parameter setting instruction.
In a second aspect, an embodiment of the present invention further provides an implementation method of a polymer reducing capillary forming and cutting integrated system, including the following steps:
triggering a control signal through a control module according to a preset parameter signal;
preheating the capillary tube by a preheating module according to the control signal so as to shape the capillary tube into a straight tube bundle;
forming the capillary after the preheating treatment by a forming module according to a control signal, wherein the forming treatment comprises heating treatment and cooling treatment; the heating treatment is used for assisting the diameter-changing processing of the capillary tube, and the cooling treatment is used for cooling and shaping the capillary tube after the diameter-changing processing is finished;
cutting the formed capillary tube by a cutting module according to the control signal, and cutting and collecting the machined and formed variable-diameter capillary tube;
the cutting module is provided with a first feeding traction device, the cutting module is provided with a second feeding traction device, and the capillary reducing machining is assisted in the feeding process of the first feeding traction device and the feeding process of the second feeding traction device under the control of the control module.
Further, the step of triggering the control signal by the control module according to the preset parameter signal includes at least one of:
triggering a control signal of the preheating temperature of the preheating module;
triggering control signals of the heating temperature and the cooling temperature of the molding module;
a control signal to trigger the cutting module cut rate.
Further, the step of controlling the feeding process of the first feeding traction device and the second feeding traction device through the control module comprises:
controlling the feeding speed, the feeding direction and the delay time of the first traction device;
and controlling the feeding speed, the feeding direction and the delay time of the second traction device.
The specific structure and the implementation principle of the polymer reducing capillary forming and cutting integrated system are described in detail below with reference to the attached drawings of the specification:
referring to fig. 1, the invention provides a polymer reducing capillary tube forming and cutting integrated system, which comprises a fixed base 1, a feeding support 2, a preheating processing module 3, a forming module 4, a cutting module 5 and a control module 6.
The feeding support 2, the preheating processing module 3, the forming module 4, the cutting module 5 and the control module 6 are sequentially arranged on the fixed base 1.
The feeding support 2 is arranged at the leftmost end of the fixed base 1 and used for arranging a capillary tube reel to be processed, and the height of the feeding support can be adjusted to enable the capillary tube to be processed to be kept horizontal and prevent twisting or knotting.
The preheating module 3 is arranged on the right side of the feeding bracket 2, and referring to fig. 2, the preheating module 3 comprises a feeding conduit 3-1, a preheating mould 3-2 and a first feeding traction device 3-3. The feeding guide pipe 3-1 is used for correcting and guiding the feeding direction, reducing manual arrangement of wire harnesses and improving feeding precision, and sequentially comprises a first feeding guide pipe, a second feeding guide pipe and a third feeding guide pipe from left to right. The first feeding traction device 3-3 is used for conveying and fixing the polymer capillary subjected to the preheating treatment, and includes but is not limited to a plurality of groups of rubber wheel traction (2 groups of 4 rubber wheel traction modes in the embodiment), and a belt traction can also be used. The feeding rubber wheels keep each group to be symmetrical up and down, and can be fully contacted with the capillary tubes through adjusting the distance and keep a certain pressure. The rubber wheel is connected with a motor (comprising a common motor, a stepping motor and a servo motor), the motor is driven and controlled by the control module 6, and various driving logics of speed regulation, forward rotation, reverse rotation, time delay and the like of the rubber wheel can be realized through PLC program control. The preheating module 3 is used for preheating the bent capillary wound on the capillary reel, so that the bent capillary is reshaped into a straight tube bundle, the axial symmetry of a micro-channel in the formed reducing capillary is guaranteed, and the processing precision is improved.
The forming module 4 is connected with the preheating processing module 3 and used for heating and cooling the polymer capillary tube for forming, and comprises a heating table, a heating mould and a cooling mould, wherein the heating table is used for transferring heat for the heating mould and the cooling mould. The heating mould is used for heating the polymer capillary tube, and the cooling mould is used for cooling and shaping the processed variable diameter capillary tube.
Wherein the heating mold is provided with a plurality of through holes, allowing polymer capillaries of corresponding sizes to pass through the through holes for contact heat transfer or radiation heat transfer. The heated mold maintains a constant forming temperature that is above the glass transition temperature of the polymeric material being processed.
In some embodiments, the forming module 4 is further provided with a slide rail and a lifting device, and the spatial position can be adjusted, so that the capillary tube to be processed and the through hole of the die are kept coaxial, and thus the capillary tube is uniformly heated; the relative position of the capillary to be processed and the die can also be adjusted, and a temperature gradient is formed on two sides of the capillary.
The heating mould is made of metal materials with higher heat conductivity coefficient, and comprises stainless steel, aluminum alloy and copper, and the structure, the size and the number of the mould can be increased or replaced according to the heating mode.
The cooling mould is provided with a through hole, the polymer capillary is allowed to pass through the through hole for cooling and shaping, and the cooling mould keeps a constant cooling temperature which is lower than the glass transition temperature of the polymer material to be processed.
Cutting module 5 is used for cutting the diameter changing capillary after the processing shaping, refer to fig. 3, and cutting module 5 includes feeding pipe 5-1, second pay-off draw gear 5-2, cutting tool 5-3 and collects hopper 5-4, accomplishes processing and pay-off through program control every time, cutting tool 5-3 is with the cutting speed of setting for with the thin diameter changing capillary subassembly in the thick centre in both ends with fashioned diameter changing capillary cutting to drop automatically to in collecting hopper 5-4.
The second feeding traction device 5-2 is used for conveying and fixing the processed variable diameter capillary tube and comprises two groups of adjacent feeding rubber wheels (or feeding belts), the feeding rubber wheels are connected with a stepping motor, and various driving logics such as speed regulation, forward rotation, reverse rotation, time delay and the like of the upper feeding rubber wheel and the lower feeding rubber wheel can be realized through PLC program control; the feeding wheels keep each group of the capillary tubes to be symmetrical up and down, the capillary tubes can be fully contacted and keep a certain pressure through adjusting the distance, and the feeding guide pipes are used for calibrating the feeding direction and ensuring accurate and stable feeding.
The control module 6 is used for preheating the temperature control of the mold and the heating table, and the motor driving programs of the first feeding traction device 3-3 and the second feeding traction device 5-2, and the temperature control comprises preheating temperature, heating temperature and cooling temperature. It should be noted that the control module is further provided with a button for receiving a preset parameter setting instruction sent by a user, and triggering a corresponding preset parameter signal according to the preset parameter setting instruction.
The first feeding traction device 3-3 and the second feeding traction device 5-2 are cooperatively controlled by the control module 6 to form a polymer capillary stretching control module, and a control instruction is sent to the capillary stretching control module through a PLC program to stretch the capillary to be processed. The method comprises the following steps:
controlling the first feeding module 3-3 and the second feeding module 5-2 to feed synchronously or asynchronously;
controlling the feed rates of the first feed module 3-3 and the second feed module 5-2;
controlling the feeding direction of the first feeding module 3-3 and the second feeding module 5-2;
and controlling the delay time of the first feeding module 3-3 and the second feeding module 5-2.
The application principle of the polymer reducing capillary forming and cutting integrated system of the present invention is further described in detail with reference to some specific embodiments, which are for explanation and not for limitation of the present invention:
1. hanging a whole roll of commercial Polytetrafluoroethylene (PTFE) capillary (with the outer diameter of 0.7mm and the inner diameter of 0.3 mm) on a feeding support, and leading the front end of the capillary to pass through all wire inlet guide pipes, a preheating treatment die through hole (with the thickness of 10mm and the aperture of 0.9 mm), a heating die through hole (with the thickness of 3mm and the aperture of 0.9 mm), a cooling die through hole (with the thickness of 8mm and the aperture of 0.9 mm) and gaps of all feeding traction rubber wheels after passing through a wire pulley;
2. the distance between the feeding traction rubber wheels is adjusted to ensure that the upper and lower rubber wheels keep uniform pressure on the polytetrafluoroethylene capillary tube without sliding, and the relative positions of the preheating treatment die, the heating die and the cooling die and the capillary tube are adjusted to ensure that the capillary tube and the through holes of the dies are coaxial.
3. The preheating temperature is set to be 200 ℃, the heating (forming) temperature is set to be 350 ℃, the cooling temperature is set to be 80 ℃ through the control module, and the heating table is started to enable the corresponding temperature of each die to be achieved and keep stable.
4. The motor running program of the first feeding traction device, the second feeding traction device and the cutting module is set through the control module:
description of the drawings: in this embodiment, the cutting tool is at the rightmost side, and therefore, advances from left to right (feeding) and retreats from right to left (discharging); the first feeding traction device is called M1 for short, the second feeding traction device is called M2 for short, the feeding Distance is shown as D (Distance), the feeding speed is shown as V (Velocity), the cycle Number is shown as N (Number), the delay time is shown as t (time), the motor for controlling the cutter is shown as M3, and the cutter vertically moves up and down.
The program of the present embodiment is configured as follows:
1, M1 advances by D1 at a speed of V1;
2. delaying t1;
m1 and M2 advance simultaneously by D2 at a speed of V2;
4, driving the cutter to move downwards D3 at the speed of V3 by M3;
5, the M3 drives the cutter to move upwards by D4 at the speed of V4;
6. delaying t2;
7. circulating from the step 1, wherein the circulation frequency is N1;
8. and (6) ending.
The corresponding parameters in this embodiment are respectively: d1=5mm, v1=100mm/s, t1=1s, D2=20mm, v2=100mm/s, D3=10mm, v3=50mm/s, D4=10mm, v4=50mm/s, t2=10s, n1=100.
5. Setting a program, starting the program when the temperature is stable, automatically finishing the processing and cutting of 100 pieces of variable-diameter capillaries by the system, and collecting the capillaries in a hopper.
In conclusion, the invention realizes the full-automatic forming and cutting integration of the polymer variable diameter capillary, produces the variable diameter capillary component with the ultra-small micro-channel for the micro-fluidic technology in large scale, reduces manual operation and reduces production cost; the temperature of the die and the rotation logic of the motor are controlled through a PLC program, so that diversified processing modes are realized; auxiliary devices such as a feeding support and a feeding guide pipe are utilized, so that the feeding stability in the machining process is improved, the stability and the noise resistance of the whole system are improved, the difference among batches is reduced, and the efficient, stable and precise machining effect is realized.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A polymer reducing capillary forming and cutting integrated system is characterized in that: the method comprises the following steps:
the control module is used for triggering a control signal according to a preset parameter signal and sending the control signal to the preheating processing module, the forming module and the cutting module;
the preheating module is used for preheating the capillary according to the control signal of the control module so as to shape the capillary into a straight tube bundle;
the forming module is used for forming the preheated capillary tube according to the control signal of the control module, and the forming treatment comprises heating treatment and cooling treatment; the heating treatment is used for assisting the diameter-changing processing of the capillary tube, and the cooling treatment is used for cooling and shaping the capillary tube after the diameter-changing processing is finished;
the cutting module is used for cutting the formed capillary according to the control signal of the control module and cutting and collecting the machined and formed variable diameter capillary;
the cutting module is provided with a first feeding traction device, the cutting module is provided with a second feeding traction device, and the control module is further used for controlling the feeding processes of the first feeding traction device and the second feeding traction device to assist in capillary diameter-changing machining.
2. The polymer reducing capillary tube forming and cutting integrated system according to claim 1, wherein: the device also comprises a feeding support, wherein the feeding support is used for arranging the capillary tube reel and winding and unwinding the capillary tube to be processed.
3. The polymer reducing capillary tube forming and cutting integrated system according to claim 2, wherein:
the feeding support, the preheating processing module, the forming module and the cutting module are sequentially arranged on a fixed base;
the control module is arranged on one side of the fixed base;
the signal processing system is respectively connected with the preheating processing module, the forming module and the cutting module.
4. The polymer reducing capillary forming and cutting integrated system as claimed in claim 1, wherein: the preheating treatment module comprises a feeding conduit and a preheating mould; the feeding guide pipe, the preheating mould and the first feeding traction device are linearly arranged; the preheating mould and the first feeding traction device are both connected with the control module;
the feeding guide pipe is used for correcting and guiding the feeding direction;
the first feeding traction device is used for controlling the feeding speed, the feeding direction and the delay time of the capillary according to the control signal of the control module;
the preheating mould is used for preheating and shaping the capillary tube.
5. The polymer reducing capillary tube forming and cutting integrated system according to claim 1, wherein: the molding module comprises a heating table, a heating mold and a cooling mold; the heating mould and the cooling mould are arranged on the heating table side by side, and the heating table is connected with the control module;
and the heating table is used for transferring heat to the heating die and the cooling die according to the control signal of the control module.
6. The polymer reducing capillary forming and cutting integrated system as claimed in claim 1, wherein: the cutting module comprises a feeding guide pipe, a second feeding traction device, a cutting tool and a collecting hopper; the feeding conduit, the second feeding traction device, the cutting tool and the collecting hopper are linearly arranged; the second feeding traction device and the cutting tool are both connected with the control module;
the feeding guide pipe is used for correcting and guiding the feeding direction;
the second feeding traction device is used for controlling the feeding speed, the feeding direction and the delay time of the capillary tube according to the control signal of the control module;
the cutting tool is used for controlling the cutting rate according to the control signal of the control module;
and the collection hopper is used for collecting the cut capillary tubes.
7. The polymer reducing capillary tube forming and cutting integrated system according to claim 1, wherein: the control module is provided with a button, and the button is used for receiving a preset parameter setting instruction sent by a user and triggering a corresponding preset parameter signal according to the preset parameter setting instruction.
8. A method for realizing a polymer reducing capillary forming and cutting integrated system is characterized by comprising the following steps: the method comprises the following steps:
triggering a control signal through a control module according to a preset parameter signal;
preheating the capillary tube by a preheating module according to the control signal so as to shape the capillary tube into a straight tube bundle;
forming the capillary after the preheating treatment by a forming module according to a control signal, wherein the forming treatment comprises heating treatment and cooling treatment; the heating treatment is used for assisting the diameter-changing processing of the capillary tube, and the cooling treatment is used for cooling and shaping the capillary tube after the diameter-changing processing is finished;
cutting the formed capillary tube by a cutting module according to the control signal, and cutting and collecting the machined and formed variable-diameter capillary tube;
the preheating module is provided with a first feeding traction device, the cutting module is provided with a second feeding traction device, and the feeding process of the first feeding traction device and the feeding process of the second feeding traction device are controlled by the control module to assist the capillary tube diameter-changing machining.
9. The method for realizing the polymer reducing capillary forming and cutting integrated system as claimed in claim 8, wherein the method comprises the following steps: the step of triggering the control signal through the control module according to the preset parameter signal comprises at least one of the following steps:
triggering a control signal of the preheating temperature of the preheating module;
triggering control signals of the heating temperature and the cooling temperature of the molding module;
and triggering a control signal of the cutting rate of the cutting module.
10. The method for realizing the polymer reducing capillary forming and cutting integrated system as claimed in claim 8, wherein the method comprises the following steps: the step of controlling the feeding process of the first feeding traction device and the second feeding traction device through the control module comprises the following steps:
controlling the feeding speed, the feeding direction and the delay time of the first traction device;
and controlling the feeding speed, the feeding direction and the delay time of the second traction device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210586269.7A CN115139506A (en) | 2022-05-27 | 2022-05-27 | Polymer reducing capillary tube forming and cutting integrated system and implementation method thereof |
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| CN202210586269.7A CN115139506A (en) | 2022-05-27 | 2022-05-27 | Polymer reducing capillary tube forming and cutting integrated system and implementation method thereof |
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