CN216099866U - Fiber preheating system - Google Patents
Fiber preheating system Download PDFInfo
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- CN216099866U CN216099866U CN202121950543.1U CN202121950543U CN216099866U CN 216099866 U CN216099866 U CN 216099866U CN 202121950543 U CN202121950543 U CN 202121950543U CN 216099866 U CN216099866 U CN 216099866U
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Abstract
The utility model provides a fiber preheating system which is high in heating efficiency and energy-saving, meanwhile, hairiness generated in the preheating process can be collected, and the generation of product quality problems caused by hairiness enrichment is reduced. A fiber preheating system is characterized in that a cavity in the height direction of a box body is divided by a horizontal partition plate to form an upper-layer cavity and a lower-layer cavity; an air outlet channel is arranged at the front end of the side plate of the box body, and an air return channel is arranged at the rear end of the side plate of the box body; the air return channel is communicated with the upper layer cavity and the lower layer cavity; an air outlet is arranged at the position of the air outlet channel corresponding to the upper-layer cavity, and the lower end of the air outlet channel is connected with an air outlet at the corresponding side of an external circulating fan; a bottom plate at the front end of the lower cavity is provided with a vent, and the vent is connected with an air inlet of the circulating fan through a pipeline; the air return channel is provided with an air return inlet corresponding to the position of the upper-layer cavity and is communicated with the rear end of the lower-layer cavity through a lower air return notch; the middle position of the length direction of the lower cavity is provided with a clapboard.
Description
Technical Field
The utility model relates to the technical field of fiber processing, in particular to a fiber preheating system.
Background
A composite material pultrusion process is a method for continuously producing composite material section bars, which is an automatic production process for forming pultruded products by carrying out resin impregnation on reinforced fibers on a creel, then passing through a forming die which keeps a certain section shape, and continuously demoulding after curing and forming in the die.
For the pultrusion process, in order to improve the production efficiency, not only the reaction rate of the resin needs to be improved so as to improve the curing efficiency of the product, but also the wettability of the fiber needs to be improved, the fiber and the resin can be effectively infiltrated in an effective time, and the fiber and the resin can be ensured to have a good interface under the condition. In addition, during the storage of the fiber and the production of the product, the fiber inevitably absorbs moisture in the air, particularly in the humid and hot environment in the south, and the moisture is unfavorable for the quality of the product, which not only causes the reduction of the glass transition temperature, but also causes the poor wetting of the fiber when the moisture is serious, thereby causing the serious product quality such as fiber exposure, delamination and the like. Therefore, the fiber needs to be preheated on the premise of improving the production efficiency and the product quality of the product. The existing preheating is carried out in a manner similar to an oven by using an electric heating rod or an electric heating block, so that the heating efficiency is low and the energy consumption is large. In addition, the hairiness has a great influence on the quality of the product, when the hairiness is enriched to a certain degree, the appearance, the mechanical property and the like of the product can be influenced, the film blocking can be caused seriously, and during preheating, the generation amount of the hairiness is likely to increase along with the reduction of the moisture content, so that the hairiness needs to be collected.
Disclosure of Invention
Aiming at the problems, the utility model provides a fiber preheating system which is high in heating efficiency, energy-saving, capable of collecting hairiness generated in the preheating process and capable of reducing the generation of product quality problems caused by hairiness enrichment.
A fiber preheating system, comprising:
the box body comprises a horizontal clapboard, a front wire passing plate, a rear wire passing plate, two side plates and a bottom plate;
a plurality of fiber preheating modules;
a circulating fan;
a box cover;
the cavity in the height direction of the box body is divided by a horizontal partition plate to form an upper layer cavity and a lower layer cavity;
an air outlet channel is arranged at the front end of the side plate of the box body, and an air return channel is arranged at the rear end of the side plate of the box body; the air return channel is communicated with the upper layer cavity and the lower layer cavity;
an air outlet is formed in the position, corresponding to the upper-layer cavity, of the air outlet channel, and the lower end of the air outlet channel is connected with an air outlet on the corresponding side of an external circulating fan;
a bottom plate at the front end of the lower cavity is provided with a vent, and the vent is connected with an air inlet of the circulating fan through a pipeline;
the air return channel is provided with an air return inlet corresponding to the position of the upper-layer cavity and is communicated with the rear end of the lower-layer cavity through a lower air return notch;
a partition plate is arranged in the middle of the lower cavity in the length direction and used for blocking hairiness and enabling wind to pass smoothly;
a plurality of fiber preheating modules are sequentially arranged in the length direction of the front part of the upper cavity at intervals;
the top of the box body is covered with the box cover.
It is further characterized in that:
the fiber preheating module comprises two side mounting plates, a lower supporting plate, an end fence and a plurality of ceramic heating pipes, wherein the bottoms of the two side mounting plates are connected through the lower supporting plate to form a frame, the end fence is vertically mounted on the front end face of the frame, two ends of each ceramic heating pipe are respectively positioned and assembled in positioning holes of the corresponding side mounting plate, and lead ends of the ceramic heating pipes are connected in an outward-protruding wiring manner;
the end fence of the fiber preheating module, which is arranged at a position close to the air outlet, also comprises a longitudinal barrier rod, the transverse barrier rod and the longitudinal barrier rod are combined to form a grid hole, and the fibers penetrate through the corresponding grid hole and then move backwards;
the baffle plate is inserted into the lower-layer cavity from the side plate on one side and extends to the inner wall of the side plate on the other side, and the height direction of the baffle plate covers the height surface area of the lower-layer cavity, so that the baffle plate is convenient to pull out and clean hairiness;
a plurality of rows of small holes are distributed on the surface area of the partition board, so that hot air can effectively pass through the small holes, and fiber hairiness brought by the air flow cannot pass through the small holes, and the fiber hairiness is collected at the rear position of the lower cavity corresponding to the partition board;
the fiber preheating device also comprises a temperature sensor, wherein the temperature sensor is arranged at the rear position of the last group of fiber preheating modules of the upper-layer cavity;
the front end and the rear end of the temperature sensor are respectively provided with a blocking rod, and the blocking rods prevent fibers from being wound on the temperature sensor;
the air outlet of the air outlet channel is specifically a plurality of groups of small ventilation holes, and the air return inlet of the air return channel is composed of a plurality of rows of ventilation grooves, so that the internal air flow is basically consistent after the yarn threading.
After the technical scheme is adopted, the box body is heated through the fiber preheating module, then hot air in an upper cavity flows to a lower cavity through the air return channel from front to back through the drainage of the circulating fan, backflow hot air in the lower cavity flows in the lower cavity from back to front, backflow air is sucked into the circulating fan through the ventilation opening, then enters the air outlet channel on the corresponding side through the side air outlets on the two sides of the circulating fan, is sent into the upper cavity again, flows from front to back, and is heated again after passing through the fiber preheating module, the original air heat is further utilized by the use of the circulating air, and the energy consumption is reduced; the baffle plate of the lower cavity is arranged, so that the hairiness is convenient to collect, the quantity of the hairiness in the product is reduced, and the product quality problem caused by enrichment of the hairiness is reduced; the preheating system can reduce the moisture content in the fiber and improve the fiber temperature, thereby improving the fiber wettability and the product quality.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view of the present invention with the cover removed;
FIG. 3 is a front view structural schematic diagram of the present invention;
FIG. 4 is a schematic view of section A-A of FIG. 3;
FIG. 5 is a schematic view of section B-B of FIG. 3;
FIG. 6 is a schematic view of the cross-sectional C-C structure of FIG. 4;
FIG. 7 is a schematic perspective view of a fiber preheating module;
the names corresponding to the sequence numbers in the figure are as follows:
the device comprises a box body 10, a horizontal partition plate 11, a front wire passing plate 12, a rear wire passing plate 13, two side plates 14, a bottom plate 15, a vent 151, a fiber preheating module 20, a side mounting plate 21, a lower support plate 22, an end fence 23, a ceramic heating pipe 24, a transverse barrier rod 25, a longitudinal barrier rod 26, a circulating fan 30, a side air outlet 31, a box cover 40, a support 50, an upper layer cavity 60, a lower layer cavity 70, an air outlet channel 80, an air outlet 81, an air return channel 90, an air return opening 91, a lower air return notch 92, a partition plate 100, a temperature sensor 110 and a blocking rod 120.
Detailed Description
A fiber preheating system, as shown in fig. 1-7, comprising a box body 10, a plurality of fiber preheating modules 20, a circulating fan 30 and a box cover 40; the housing 10 is mounted on a bracket 50,
the box body 10 comprises a horizontal clapboard 11, a front wire passing plate 12, a rear wire passing plate 13, two side plates 14 and a bottom plate 15;
the cavity in the height direction of the box body 10 is divided by a horizontal clapboard 11 to form an upper layer cavity 60 and a lower layer cavity 70;
an air outlet channel 80 is arranged at the front end of the side plate 14 of the box body 10, and an air return channel 90 is arranged at the rear end of the side plate 14 of the box body 10; the air return channel 90 is communicated with the upper layer cavity 60 and the lower layer cavity 70;
an air outlet 81 is arranged at the position of the air outlet channel 80 corresponding to the upper-layer cavity 60, and the inlet at the lower end of the air outlet channel 80 is connected with the air outlet 31 at the corresponding side of the external circulating fan 30;
the bottom plate 15 at the front end of the lower cavity 70 is provided with a vent 151, the vent 151 is connected with an air inlet of the circulating fan 30 through a pipeline, in specific implementation, the circulating fan 30 is fixedly arranged below the bottom plate 15, and the vent 151 is butted with the air inlet of the circulating fan 30;
the position of the air return channel 90 corresponding to the upper-layer cavity 60 is provided with an air return opening 91, and the air return channel 90 is communicated with the rear end of the lower-layer cavity 70 through a lower air return notch 92;
a partition plate 100 is arranged in the middle of the lower chamber 70 in the length direction, and the partition plate 100 is used for blocking hairiness and enabling wind to pass smoothly;
a plurality of fiber preheating modules 20 are sequentially arranged at intervals in the length direction of the front part of the upper cavity 60;
the top of the case 10 is covered with a case cover 40.
In specific implementation, the fiber preheating module 20 is a ceramic heating module, the fiber preheating module 20 includes two side mounting plates 21, a lower support plate 22, an end fence 23 and a plurality of ceramic heating pipes 24, the bottoms of the two side mounting plates 21 are connected through the lower support plate 22 to form a frame, the end fence 23 is vertically mounted at the front end face position of the frame, two ends of the ceramic heating pipes 24 are respectively positioned and assembled in positioning holes of the corresponding side mounting plates 21, and the lead ends are connected in a convex connection manner, the end fence 23 includes a plurality of transverse blocking rods 25, the ceramic heating pipes 24 are arranged at intervals in the height direction to form a plurality of layers of queues, the space between the adjacent layers of queues passes through fibers, and the space between the adjacent transverse blocking rods 25 passes through fibers;
the end fence of the fiber preheating module 20 arranged at the position close to the air outlet 81 further comprises a longitudinal blocking rod 26, the transverse blocking rod 25 and the longitudinal blocking rod 26 are combined to form arranged grid holes, and the fibers penetrate through the corresponding grid holes and then move backwards;
in specific implementation, the total number of the ceramic heating pipes 24 is the product of the total number of layers and the number of single layers, the total number of layers is the number of fiber layers plus 1, and the number of single layers is related to the linear density of fibers and the number of single layers of fibers and can be 1-4; the transverse barrier bars 25 and the longitudinal barrier bars 26 are all chromium plated metal bars.
In a specific embodiment, the partition board 100 is inserted into the lower cavity 70 from the side plate 14 on one side and extends to the inner wall of the side plate 14 on the other side, and the height direction of the partition board 100 covers the height area of the lower cavity 70, so that the partition board 100 is convenient to pull out and clean hairiness;
the face area of the baffle 100 is provided with a plurality of rows of small holes, which ensure that hot air can effectively pass through, but fiber hairiness brought by the air current cannot pass through, so that the fiber hairiness is collected at the rear position of the lower cavity corresponding to the baffle.
In the embodiment, the fiber preheating device further comprises a temperature sensor 110, wherein the temperature sensor 110 is arranged at the rear position of the last group of fiber preheating modules 20 of the upper-layer cavity 60;
the front and rear ends of the temperature sensor 110 are respectively provided with a blocking rod 120, and the blocking rod 120 prevents the fiber from being wound around the temperature sensor 110.
In the specific embodiment, the air outlets 81 of the air outlet channel 80 are specifically a plurality of groups of small ventilation holes, and the air return inlet 91 of the air return channel 90 is composed of a plurality of rows of ventilation slots, so that the internal air flow is basically consistent after the yarn threading.
The working principle is as follows: the ceramic far infrared heating technology is adopted, so that the ceramic far infrared heating device has the advantages of high heating efficiency and energy conservation; the box body is heated through the fiber preheating module, then hot air of an upper cavity flows to a lower cavity through the air return channel from front to back through the drainage of the circulating fan, backflow hot air of the lower cavity flows in the lower cavity from back to front, the backflow air is sucked into the circulating fan through the ventilation opening, then enters the air outlet channel on the corresponding side through the side air outlets on the two sides of the circulating fan, and is sent into the upper cavity again, flows from front to back and is heated again after passing through the fiber preheating module, the original air heat is further utilized by the circulating air, and the energy consumption is reduced; the baffle plate of the lower cavity is arranged, so that the hairiness is convenient to collect, the quantity of the hairiness in the product is reduced, and the product quality problem caused by enrichment of the hairiness is reduced; the preheating system can reduce the moisture content in the fiber and improve the fiber temperature, thereby improving the fiber wettability and the product quality.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. A fiber preheating system, comprising:
the box body comprises a horizontal clapboard, a front wire passing plate, a rear wire passing plate, two side plates and a bottom plate;
a plurality of fiber preheating modules;
a circulating fan;
a box cover;
the cavity in the height direction of the box body is divided by a horizontal partition plate to form an upper layer cavity and a lower layer cavity;
an air outlet channel is arranged at the front end of the side plate of the box body, and an air return channel is arranged at the rear end of the side plate of the box body; the air return channel is communicated with the upper layer cavity and the lower layer cavity;
an air outlet is formed in the position, corresponding to the upper-layer cavity, of the air outlet channel, and the lower end of the air outlet channel is connected with an air outlet on the corresponding side of an external circulating fan;
a bottom plate at the front end of the lower cavity is provided with a vent, and the vent is connected with an air inlet of the circulating fan through a pipeline;
the air return channel is provided with an air return inlet corresponding to the position of the upper-layer cavity and is communicated with the rear end of the lower-layer cavity through a lower air return notch;
a partition plate is arranged in the middle of the lower cavity in the length direction and used for blocking hairiness and enabling wind to pass smoothly;
a plurality of fiber preheating modules are sequentially arranged in the length direction of the front part of the upper cavity at intervals;
the top of the box body is covered with the box cover.
2. A fiber preheating system according to claim 1, wherein: the fiber preheating module comprises two side mounting plates, a lower supporting plate, an end fence and a plurality of ceramic heating pipes, wherein the bottoms of the two side mounting plates are connected through the lower supporting plate to form a frame, the end fence is vertically mounted on the front end face of the frame, the two ends of the ceramic heating pipes are respectively positioned and assembled in positioning holes of corresponding side mounting plates and connected with outer convex wiring of a lead end, the end fence comprises a plurality of transverse barrier rods, the ceramic heating pipes are arranged in a height direction at intervals to form a plurality of layers of queues, fibers are passed through in the space between adjacent layers of queues, and the fibers are passed through in the space between adjacent transverse barrier rods.
3. A fiber preheating system according to claim 2, wherein: the end fence of the fiber preheating module, which is arranged at a position close to the air outlet, further comprises a longitudinal blocking rod, the transverse blocking rod and the longitudinal blocking rod are combined to form arranged grid holes, and the fibers penetrate through the corresponding grid holes and then move backwards.
4. A fiber preheating system according to claim 1, wherein: the baffle plate is inserted into the lower-layer cavity from the side plate on one side and extends to the inner wall of the side plate on the other side, and the height direction of the baffle plate covers the height surface area of the lower-layer cavity.
5. A fiber preheating system according to claim 4, wherein: and a plurality of rows of small holes are distributed on the surface area of the partition plate.
6. A fiber preheating system according to claim 1, wherein: the fiber preheating device further comprises a temperature sensor, wherein the temperature sensor is arranged at the rear position of the last group of fiber preheating modules in the upper-layer cavity.
7. A fiber preheating system according to claim 6, wherein: and the front end and the rear end of the temperature sensor are respectively provided with a blocking rod.
8. A fiber preheating system according to claim 1, wherein: the air outlet of the air outlet channel is specifically a plurality of groups of small ventilation holes, and the air return inlet of the air return channel is formed by a plurality of rows of ventilation grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121950543.1U CN216099866U (en) | 2021-08-19 | 2021-08-19 | Fiber preheating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121950543.1U CN216099866U (en) | 2021-08-19 | 2021-08-19 | Fiber preheating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216099866U true CN216099866U (en) | 2022-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121950543.1U Active CN216099866U (en) | 2021-08-19 | 2021-08-19 | Fiber preheating system |
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| CN (1) | CN216099866U (en) |
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2021
- 2021-08-19 CN CN202121950543.1U patent/CN216099866U/en active Active
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