CN112848190A - Real-time monitoring method and device for fiber content of thermoplastic blank - Google Patents
Real-time monitoring method and device for fiber content of thermoplastic blank Download PDFInfo
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- CN112848190A CN112848190A CN202110003459.7A CN202110003459A CN112848190A CN 112848190 A CN112848190 A CN 112848190A CN 202110003459 A CN202110003459 A CN 202110003459A CN 112848190 A CN112848190 A CN 112848190A
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- fiber
- guide wheel
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- wheel
- blank
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Classifications
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
- B29C48/2886—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules of fibrous, filamentary or filling materials, e.g. thin fibrous reinforcements or fillers
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92323—Location or phase of measurement
- B29C2948/92333—Raw material handling or dosing, e.g. active hopper or feeding device
Abstract
The invention discloses a real-time monitoring method and a real-time monitoring device for fiber content of a thermoplastic blank. The invention aims at the dynamic measurement of the fiber, so that the fiber feeding amount can be monitored in real time in the production process, thereby dynamically monitoring the components of the blank and providing necessary guarantee for the quality of the product.
Description
Technical Field
The invention belongs to the technical field of composite material detection, and particularly relates to a method and a device for monitoring the fiber content of a thermoplastic blank in real time.
Background
LFT-D is an efficient on-line die pressing process for a dimensional-reinforced thermoplastic composite material, and is gradually popularized due to high production efficiency, energy conservation and environmental protection. In the process of the process, hot resin and long fiber are mixed and continuously extruded by a screw machine to form a blank, and the blank is subjected to heat preservation, conveying, grabbing, entering a die and directly pressing to form a product. In the aspect of blank components, particles and powder such as resin, additives and the like are dynamically and accurately metered by a weightless scale, and the aspect of fiber introduction amount has no accurate dynamic metering measure, so that the blank components are difficult to determine in the production process, the blank fiber content can be calculated only by weighing before and after blank sampling and sample calcining, and the production activity is delayed.
Therefore, it is an urgent need to solve the problem of providing a method and a device for monitoring the fiber content of thermoplastic blank in real time.
Disclosure of Invention
In view of the above, the invention provides a method and a device for monitoring the fiber content of a thermoplastic blank in real time, which can monitor the fiber feeding amount in real time in the production process aiming at the dynamic metering of the fiber, thereby dynamically monitoring the components of the blank and providing necessary guarantee for the quality of products.
In order to achieve the purpose, the invention adopts the following technical scheme:
a thermoplastic blank fiber content real-time monitoring device comprises: the fiber guide device comprises a fiber fixing ring, a fiber guide wheel, a sensor and a tension wheel, wherein the fiber fixing ring is arranged on each of two sides of the fiber guide wheel, the tension wheel is arranged on one side of the fiber guide wheel, a sensing stop block is fixedly arranged on the fiber guide wheel, and the sensor is arranged near the fiber guide wheel and matched with the sensing stop block.
Preferably, the fiber guide wheel adopts a V-shaped grooved wheel, and the inner surface of the groove of the V-shaped grooved wheel is subjected to surface anti-skid treatment.
Preferably, the radius of the fiber guide wheel is between 100 mm and 200 mm.
Preferably, the tensioning wheel has a damping function, and the damping size is adjusted according to application.
The monitoring method of the thermoplastic blank fiber content real-time monitoring device comprises the steps that fibers pass through a fixing ring and a damping wheel and are lapped on a fiber guide wheel, the linear speed of the tensioned fibers at the lapping position is the same as the linear speed of points on the rim of the fiber guide wheel, the time of one circle of rotation of the fiber guide wheel is measured through an inductor, the linear speed of the fibers is read, and the fiber feeding amount of the fibers is dynamically calculated by combining the linear density of the fibers, so that the blank fiber content is monitored in real time.
Preferably, according to the linear density data of the fibers, signals sampled by the sensor are processed by the field controller, so that the fiber quality can be monitored and measured in real time.
The invention has the beneficial effects that:
aiming at the dynamic measurement of the fiber, the invention measures the time of one circle of rotation of the fiber guide wheel through the inductor in the production process, reads the linear velocity of the fiber, dynamically calculates the fiber feeding amount of the fiber by combining the linear density of the fiber, can monitor the fiber feeding amount in real time, obtains the fiber content of the monitored blank, thereby dynamically monitoring the components of the blank and providing necessary guarantee for the quality of the product.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic diagram of the present invention.
Wherein, in the figure:
1-fiber fixing ring; 2-a fiber guide wheel; 3-a sensor; 4-a tension wheel; 5-induction stop block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a real-time monitoring device for fiber content of thermoplastic blank, comprising: fibre fixed ring 1, lead fine wheel 2, inductor 3 and take-up pulley 4, the both sides of leading fine wheel 2 all are provided with fibre fixed ring 1, and one side of leading fine wheel 2 is provided with take-up pulley 4, and fixed mounting has response dog 5 on leading fine wheel 2, and inductor 3 installs near leading fine wheel 2 to with response dog 5 looks adaptation.
In this embodiment, three fiber fixing rings 1 are provided, one of the three fiber fixing rings is arranged on one side of the fiber guide wheel 2, the other two fiber fixing rings are arranged on the other side of the fiber guide wheel 2, the tensioning wheels 4 are arranged on the same side as the two fiber fixing rings 1, the two tensioning wheels 4 are arranged and are both located between the two fiber fixing rings 1, and fibers pass through the two tensioning wheels 4.
In this embodiment, the fiber guide wheel 2 adopts a V-shaped grooved wheel, and the inner surface of the V-shaped grooved wheel is subjected to surface anti-slip treatment, so that the surface friction of the V-shaped grooved wheel is increased, and the relative slip between the fiber guide wheel 2 and the fiber is avoided.
In this embodiment, the radius of fibre wheel 2 is between 100 ~ 200mm, and the effect interval of during operation guarantee inductor 3 prolongs the life of inductor 3 under the prerequisite of guaranteeing the sampling precision.
In this embodiment, the tensioning wheel 4 has a damping function, and the damping magnitude is adjusted according to the application, so that the tensioning purpose is achieved on the premise of proper resistance.
The invention also provides a real-time monitoring method for the fiber content of the thermoplastic blank, wherein the fiber passes through the fixed ring and the damping wheel and is lapped on the fiber guide wheel 2, the linear velocity of the tensioned fiber at the lapping part is the same as the linear velocity of a point on the rim of the fiber guide wheel 2, the time of one circle of rotation of the fiber guide wheel 2 is measured through the inductor 3, the linear velocity of the fiber is read, and the fiber feeding amount of the fiber is dynamically calculated in combination with the linear density of the fiber, so that the fiber content of the blank is monitored in real time.
In this embodiment, according to the linear density data of the fiber, the signal sampled by the sensor 3 is processed by the field controller, so as to achieve the effect of monitoring and measuring the fiber quality in real time.
Aiming at the dynamic measurement of the fiber, the invention measures the time of one circle of rotation of the fiber guide wheel through the inductor in the production process, reads the linear velocity of the fiber, dynamically calculates the fiber feeding amount of the fiber by combining the linear density of the fiber, can monitor the fiber feeding amount in real time, obtains the fiber content of the monitored blank, thereby dynamically monitoring the components of the blank and providing necessary guarantee for the quality of the product.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A thermoplastic blank fiber content real-time monitoring device is characterized by comprising: the fiber guide device comprises a fiber fixing ring, a fiber guide wheel, a sensor and a tension wheel, wherein the fiber fixing ring is arranged on each of two sides of the fiber guide wheel, the tension wheel is arranged on one side of the fiber guide wheel, a sensing stop block is fixedly arranged on the fiber guide wheel, and the sensor is arranged near the fiber guide wheel and matched with the sensing stop block.
2. The real-time monitoring device for the fiber content of the thermoplastic blank as claimed in claim 1, wherein the fiber guide wheel adopts a V-shaped grooved wheel, and the inner surface of the groove of the V-shaped grooved wheel is subjected to surface anti-slip treatment.
3. The real-time monitoring device for the fiber content of the thermoplastic blank according to claim 1 or 2, wherein the radius of the fiber guide wheel is between 100 mm and 200 mm.
4. The real-time monitoring device for the fiber content of the thermoplastic blank according to claim 1, wherein the tension wheel has a damping effect, and the damping magnitude is adjusted according to application.
5. The monitoring method of the thermoplastic blank fiber content real-time monitoring device according to any one of claims 1 to 4, characterized in that the fiber passes through the fixed ring and the damping wheel and is lapped on the fiber guide wheel, the linear velocity of the fiber tensioned at the lapping part is the same as the linear velocity of a point on the rim of the fiber guide wheel, the time of one circle of rotation of the fiber guide wheel is measured through an inductor, the linear velocity of the fiber is read, and the fiber feeding amount of the fiber is dynamically calculated by combining the linear density of the fiber, so that the blank fiber content is monitored in real time.
6. The method and device for monitoring the fiber content of the thermoplastic blank in real time according to the claim 5, wherein the signals sampled by the sensor are processed by the on-site controller according to the linear density data of the fibers, so as to achieve the effect of monitoring and measuring the fiber quality in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110003459.7A CN112848190A (en) | 2021-01-04 | 2021-01-04 | Real-time monitoring method and device for fiber content of thermoplastic blank |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110003459.7A CN112848190A (en) | 2021-01-04 | 2021-01-04 | Real-time monitoring method and device for fiber content of thermoplastic blank |
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| Publication Number | Publication Date |
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| CN112848190A true CN112848190A (en) | 2021-05-28 |
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| CN202110003459.7A Pending CN112848190A (en) | 2021-01-04 | 2021-01-04 | Real-time monitoring method and device for fiber content of thermoplastic blank |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005059078A1 (en) * | 2005-12-10 | 2007-06-14 | Saurer Gmbh & Co. Kg | Method for piecing a thread and rotor spinning machine for carrying out the method |
| CN201924237U (en) * | 2010-12-23 | 2011-08-10 | 杭州顺隆胶辊有限公司 | Wireless real-time monitor system for rubber-covered rollers |
| CN106064761A (en) * | 2016-06-15 | 2016-11-02 | 高武保 | A kind of high accuracy tension control mechanism being applicable on Optical Fiber Winding machine |
| CN206633097U (en) * | 2017-03-31 | 2017-11-14 | 江苏亨通光纤科技有限公司 | A kind of optical fiber automatic cutting device |
| CN206703550U (en) * | 2017-03-20 | 2017-12-05 | 江苏奇一科技有限公司 | A kind of disconnected instant tensioning apparatus of fibre for continuous fiber thermoplastic prepreg |
| CN108910099A (en) * | 2018-06-26 | 2018-11-30 | 常州百思通复合材料有限公司 | Detection system and method for sheet molding compound production line |
| CN108975041A (en) * | 2018-09-03 | 2018-12-11 | 重庆东登科技有限公司 | Coiled material winding tension real-time detection regulating system |
-
2021
- 2021-01-04 CN CN202110003459.7A patent/CN112848190A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005059078A1 (en) * | 2005-12-10 | 2007-06-14 | Saurer Gmbh & Co. Kg | Method for piecing a thread and rotor spinning machine for carrying out the method |
| CN201924237U (en) * | 2010-12-23 | 2011-08-10 | 杭州顺隆胶辊有限公司 | Wireless real-time monitor system for rubber-covered rollers |
| CN106064761A (en) * | 2016-06-15 | 2016-11-02 | 高武保 | A kind of high accuracy tension control mechanism being applicable on Optical Fiber Winding machine |
| CN206703550U (en) * | 2017-03-20 | 2017-12-05 | 江苏奇一科技有限公司 | A kind of disconnected instant tensioning apparatus of fibre for continuous fiber thermoplastic prepreg |
| CN206633097U (en) * | 2017-03-31 | 2017-11-14 | 江苏亨通光纤科技有限公司 | A kind of optical fiber automatic cutting device |
| CN108910099A (en) * | 2018-06-26 | 2018-11-30 | 常州百思通复合材料有限公司 | Detection system and method for sheet molding compound production line |
| CN108975041A (en) * | 2018-09-03 | 2018-12-11 | 重庆东登科技有限公司 | Coiled material winding tension real-time detection regulating system |
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Application publication date: 20210528 |