A non-woven fiber sheet manufacturing device with real-time adjustment

Abstract

The present application relates to the technical field of non-woven fiber sheet preparation, and provides a non-woven fiber sheet manufacturing device with real-time adjustment, including a spinneret for spinning fiber bundles; a spinneret baffle arranged in front of the spinneret; a telescopic rotating device for driving the spinneret baffle to rotate and telescope; the telescopic rotating device includes a rotation drive module, a first shaft, a telescopic compensation mechanism, and a second shaft, one end of the first shaft is connected to the output shaft of the rotation drive module, the end of the first shaft away from the output shaft is connected to the telescopic compensation mechanism, the telescopic compensation mechanism is arranged between the first shaft and the second shaft, the end of the telescopic compensation mechanism away from the first shaft is connected to the second shaft, and the end of the second shaft away from the telescopic compensation mechanism is connected to the spinneret baffle; the output shaft drives the first shaft, the telescopic compensation mechanism, the second shaft, and the spinneret baffle to rotate simultaneously. The present application enables the spinneret baffle to have an active telescopic function while being able to rotate through the telescopic rotating device.

Description

Technical Field

[0001] The present application relates to the technical field of non-woven fiber sheet preparation, and in particular to a non-woven fiber sheet manufacturing device with real-time adjustment. Background Art

[0002] The main process of flash spinning technology is: dissolving the polymer in the solvent to form a polymer solution, which is then ejected from the spinneret into a medium area with a temperature or pressure different from the original one, forming a liquid stream. The solvent in the stream flashes, changing the shape of the original stream and taking away the heat. The solute, i.e. the polymer, cools rapidly after precipitation, forming a solvent airflow and a filament bundle with an ultrafine three-dimensional network structure. The filament bundle is then deposited and collected by some method to make a non-woven fabric.

[0003] According to the content disclosed in patent publication number CN113529186A, it can be known that in the traditional production process, the airflow and the filament bundle together generate an impact force on the surface of the spinneret baffle, and the filament bundle is dispersed into a flat network structure under the reaction force of the spinneret baffle. The fluctuation of the magnitude of the impact force directly affects the uniformity of the dispersion of the filament bundle network, and thus affects the uniformity of the unit area quality of the final product. This patent can measure the impact force.

[0004] The above solution realizes the measurement of impact force during the production process. However, based on the measured data, technicians found that at different stages of production, such as the stage when the production machine is just started, the stage when the production machine is running stably, and the stage when the production machine is about to stop running, the impact force fluctuates greatly in each stage, which directly affects the uniformity of dispersion of the filament web in each stage. Therefore, how to monitor and adjust the impact force in real time during continuous production is a problem that needs to be further solved. Summary of the Invention

[0005] In order to solve the problem that the above-mentioned prior art cannot monitor and adjust the impact force in real time, the present application provides a non-woven fiber sheet manufacturing device with real-time adjustment, including

[0006] Spinneret, used for spinning fiber tow.

[0007] The spinneret baffle is arranged in front of the spinneret and is used to receive the fiber bundle.

[0008] The impact force monitoring device is arranged on the spinneret baffle and is used to detect the impact force of the fiber bundle.

[0009] The telescopic rotating device is used to drive the spinneret baffle to rotate and extend.

[0010] The telescopic rotation device includes a rotation drive module, a first shaft, a telescopic compensation mechanism, and a second shaft. One end of the first shaft is connected to the output end of the rotation drive module, the end of the first shaft away from the rotation drive module is connected to the telescopic compensation mechanism, the end of the telescopic compensation mechanism away from the first shaft is connected to the second shaft, and the end of the second shaft away from the telescopic compensation mechanism is connected to the spinneret. The telescopic compensation mechanism can drive the second shaft to extend and retract. The rotation drive module drives the first shaft, telescopic compensation mechanism, second shaft, and spinneret to rotate simultaneously.

[0011] The control module is electrically connected to the impact force monitoring device and the telescopic rotation device.

[0012] In one embodiment, the telescopic compensation mechanism includes

[0013] The outer shell has an installation cavity inside, one end of which is connected to the first shaft, and the other end of which is provided with an opening for the second shaft to enter the installation cavity.

[0014] The telescopic driving module is arranged in the installation cavity, one end of the telescopic driving module is connected to the first shaft body, and the other end of the telescopic driving module is connected to the second shaft body through a connecting member, and the telescopic driving module can drive the second shaft body to move.

[0015] In one embodiment, a slide rail is provided on the inner wall of the installation cavity, and at least one boss for connecting with the slide rail is provided on the outer periphery of the connecting member.

[0016] In one embodiment, at least two symmetrically arranged bosses are provided on the outer periphery of the connecting member.

[0017] In one embodiment, a limit block is provided at one end of the installation cavity away from the first shaft, for limiting the position of the connecting member.

[0018] In one embodiment, at least two telescopic connecting rods are provided on the outer shell, one end of the telescopic connecting rod is connected to the outer shell, and the end of the telescopic connecting rod away from the outer shell is connected to the spinneret baffle.

[0019] In one embodiment, three telescopic connecting rods are provided, and the telescopic connecting rods are arranged around the second shaft.

[0020] In one embodiment, a reinforcement bracket is provided between two ends of the telescopic connecting rod connected to the spinneret baffles. The reinforcement bracket is triangular in shape.

[0021] In one embodiment, a distance sensor is provided on the outer shell, and the distance sensor is used to detect the distance between the outer shell and the spinning baffle.

[0022] In one embodiment, the telescopic driving module is a combination of a servo motor and a telescopic rod.

[0023] Based on the above, compared with the existing technology, the present application provides a real-time adjustment non-woven fiber sheet manufacturing equipment, which monitors the impact force of the fiber bundle ejected from the spinneret in real time through a telescopic rotating device and an impact force monitoring device. According to the magnitude of the impact force, the distance between the spinneret and the spinneret baffle is adjusted in real time during the production process, so that the position where the fiber bundle contacts the spinneret baffle is as consistent as possible, thereby balancing the impact of the impact force fluctuation and improving the unit area quality uniformity of the finished product.

[0024] Other features and benefits of the present application will be described in the following description, and in part will become apparent from the description or be understood through practice of the present application. The objectives and other benefits of the present application can be achieved and obtained through the structures particularly pointed out in the description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] To more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For those skilled in the art, other drawings can be derived from these drawings without inventive effort. The positional relationship of the drawings in the following description, unless otherwise specified, is based on the orientation of the components in the drawings.

[0026] Figure 1 This is a schematic diagram of an embodiment of a real-time adjustment non-woven fiber sheet manufacturing device provided by the present application.

[0027] Figure 2 This is a cross-sectional view of a telescopic rotating device in one embodiment of the present application.

[0028] Figure 3 This is a left side view of a connecting member in one embodiment of the present application.

[0029] Figure 4 This is a front view of a telescopic rotating device in another embodiment of the present application.

[0030] Figure 5 This is a right side view of the spinneret baffle, the second shaft, the telescopic connecting rod and the reinforcement bracket in one embodiment of the present application.

[0031] Figure 6 This is a cross-sectional view of a telescopic rotating device in another embodiment of the present application.

[0032] Reference numerals:

[0033] 100 spinneret 200 spinneret baffle 300 telescopic rotating device

[0034] 31 Rotation drive module 32 First shaft 33 Telescopic compensation mechanism

[0035] 331 outer shell 3311 limit block 332 telescopic drive module

[0036] 333 connecting piece 3331 boss 334 distance sensor

[0037] 34 second axis 35 telescopic connecting rod 351 reinforcement bracket

[0038] 400 Impact force monitoring device 500 Control module 600 Fiber tow DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The technical features designed in the different implementation modes of the present application described below can be combined with each other as long as they do not conflict with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0040] In the description of this application, it should be noted that all terms used in this application (including technical terms and scientific terms) have the same meaning as those commonly understood by those skilled in the art to which this application belongs, and should not be understood as limiting this application. It should be further understood that the terms used in this application should be understood to have the same meaning as these terms in the context of this specification and the relevant field, and should not be understood in an idealized or overly formal sense, unless explicitly defined as such in this application.

[0041] When implementing it specifically, Figure 1 As shown, the present application provides a non-woven fiber sheet manufacturing device with real-time adjustment, including a spinneret 100 , a spinneret baffle 200 , an impact force monitoring device 400 , a telescopic rotating device 300 and a control module 500 .

[0042] The spinneret 100 is used to spin a fiber bundle 600. The spinneret baffle 200 is arranged in front of the spinneret 100 to receive the fiber bundle 600. The impact force monitoring device 400 is arranged on the spinneret baffle 200. Specifically, the impact force monitoring device 400 can be set with reference to the CN113529186A patent document.

[0043] The telescopic rotation device 300 is used to drive the spinneret baffle 200 to rotate and extend. The control module 500 is electrically connected to the impact force monitoring device 400 and the telescopic rotation device 300. Specifically, the control module 500 can be an electronic controller such as an MCU or CPU, or an external PC control system capable of overall control of the equipment.

[0044] During the production process, technicians discovered that one of the key factors affecting the magnitude of the impact force is the distance D between the spinneret 200 and the spinneret 100. It is understandable that the larger D is, the smaller the impact force F on the spinneret 200 is, and vice versa. When the impact force changes, the most intuitive manifestation is that the position where the fiber bundle 600 contacts the spinneret 200 changes. Therefore, the position where the fiber bundle 600 contacts the spinneret 200 can be adjusted to balance the impact force fluctuation. In the case where the spinning speed of the spinneret 100 fluctuates, the present application uses a telescopic rotating device 300 to enable the spinneret 200 to rotate while having a telescopic function. The impact force is monitored in real time by the impact force monitoring device 400. Under the comprehensive control of the control module 500, the size of D is adjusted so that the position where the fiber bundle 600 contacts the spinneret 200 is as consistent as possible, thereby reducing the impact of the impact force fluctuation.

[0045] Specifically, the telescopic rotation device 300 includes a rotation drive module 31, a first shaft 32, a telescopic compensation mechanism 33, and a second shaft 34. One end of the first shaft 32 is connected to the output end of the rotation drive module 31, and the end of the first shaft 32 remote from the output end of the rotation drive module 31 is connected to the telescopic compensation mechanism 33. The end of the telescopic compensation mechanism 33 remote from the first shaft 32 is connected to the second shaft 34, and the end of the second shaft 34 remote from the telescopic compensation mechanism 33 is connected to the spinneret 200. The telescopic compensation mechanism 33 drives the second shaft 34 to extend and retract. The rotation drive module 31 drives the first shaft 32, the telescopic compensation mechanism 33, the second shaft 34, and the spinneret 200 to rotate simultaneously. Specifically, the rotation drive module 31 can be a servo motor or a stepper motor. The telescopic compensation mechanism 33 can be a combination of a motor and a telescopic rod, or can be an electric cylinder, a hydraulic table, or the like.

[0046] During actual operation, the spinneret 100 ejects fiber bundles 600 at a set speed, and the fiber bundles 600 are sprayed onto the spinneret baffle 200. The impact force monitoring device 400 on the spinneret baffle 200 monitors the impact force in real time and transmits the signal to the control module 500. The control module 500 converts the distance that the spinneret baffle 200 needs to move and transmits the result to the telescopic rotating device 300. The telescopic rotating device 300 is used to drive the spinneret baffle 200 to move. Therefore, the distance between the spinneret baffle 200 and the spinneret 100 can be changed in real time according to the impact force during the production process, thereby improving the problem of poor uniformity of the non-woven fiber sheet caused by different spinneret forces throughout the entire production process.

[0047] Furthermore, the telescopic compensation mechanism 33, as the core of real-time adjustment, needs to ensure its accuracy and be free from external influences. Figure 2 As shown, the telescopic compensation mechanism 33 includes an outer shell 331 , a telescopic driving module 332 and a connecting member 333 .

[0048] The outer shell 331 has a mounting cavity within it. One end of the outer shell 331 is connected to the first shaft 32, and the other end has an opening for the second shaft 34 to enter the mounting cavity. A telescopic drive module 332 is located within the mounting cavity. One end of the telescopic drive module 332 is connected to the first shaft 32, and the other end is connected to the second shaft 34 via a connector 333. The telescopic drive module 332 is capable of driving the movement of the second shaft 34. Specifically, the telescopic drive module 332 can be a combination of a motor and a telescopic rod, or it can be an electric cylinder, a hydraulic platform, or the like.

[0049] Preferably, Figure 2 As shown, the inner wall of the mounting cavity is provided with a slide rail, and the outer periphery of the connector 333 is provided with at least one boss 3331 for connecting to the slide rail. The boss 3331 is connected to the slide rail, forming a snap connection between the connector 333 and the outer shell 331. Rotation of the outer shell 331 drives the connector 333 to rotate simultaneously, which in turn drives the second shaft 34 to rotate the spinneret baffle 200. Simultaneously, the rotational force generated by the rotational drive module 31 acts on the outer shell 331 without affecting the telescopic drive module 332 therein, thereby ensuring the telescopic accuracy of the telescopic drive module 332.

[0050] Preferably, Figure 2 As shown, a stopper 3311 is provided at one end of the mounting cavity away from the first shaft 32 to limit the position of the connector 333. Furthermore, the stopper 3311 can be integrated into the slide rail to further limit the position of the connector 333 by limiting the position of the boss 3331 on the connector 333, thereby ensuring a limiting effect while improving the integration of the device.

[0051] Preferably, Figure 3As shown, at least two bosses 3331 are provided on the periphery of the connecting member 333. The bosses 3331 are symmetrically arranged with the geometric center of the connecting member 333 as the symmetry center, and can be arranged in a "cross" shape, "I" shape, etc., so that each boss 3331 is evenly stressed to ensure its service life.

[0052] Preferably, Figure 4 As shown, at least two telescopic connecting rods 35 are provided on the outer shell 331. One end of the telescopic connecting rod 35 is connected to the outer shell 331, and the end of the telescopic connecting rod 35 away from the outer shell 331 is connected to the spinneret 200. Specifically, the telescopic connecting rod 35 can be a two-section rod, which can make the connection between the telescopic rotating device 300 and the spinneret 200 more stable and ensure the stability of the spinneret 200 when it is extended or retracted.

[0053] Further, such as Figure 5 As shown, three telescopic connecting rods 35 are provided, and the telescopic connecting rods 35 are arranged around the second shaft body 34. The surrounding arrangement of the telescopic connecting rods 35 makes the force distribution thereof more uniform, ensuring that the connection between the telescopic rotating device 300 and the spinning baffle 200 is more stable.

[0054] Further, such as Figure 5 As shown, in order to further ensure the stability of the spinning baffle 200, a reinforcement bracket 351 is set between two ends of the telescopic connecting rod 35 connected to the spinning baffle 200, and the reinforcement bracket 351 is triangular in shape as a whole.

[0055] Preferably, a distance sensor 334 is provided on the outer shell 331 to detect the distance between the outer shell 331 and the spinneret 200. In practice, the distance sensor 334 is electrically connected to the control module 500, allowing technicians to read in real time the distance between the outer shell 331 and the spinneret 200, the impact force on the spinneret 200, and the extension and contraction of the telescopic rotating device 300. When production problems arise, these three indicators can be compared to quickly locate the problem and resolve it promptly.

[0056] Preferably, the telescopic driving module 332 adopts a combination of a servo motor and a telescopic rod to ensure the telescopic accuracy of the telescopic rotating device 300 and more accurately regulate the position where the fiber bundle 600 contacts the spinneret baffle 200.

[0057] In addition, those skilled in the art should understand that, although there are many problems in the prior art, each embodiment or technical solution of the present application may be improved in only one or several aspects, without having to simultaneously solve all the technical problems listed in the prior art or background art. Those skilled in the art should understand that the absence of any content in a claim should not be construed as a limitation on that claim.

[0058] Although terms such as spinneret, spinneret baffle, telescopic rotating device, first shaft, telescopic compensation mechanism, outer shell, telescopic drive module, connector, boss, second shaft, telescopic connecting rod, reinforcement bracket, impact force monitoring device, fiber bundle, etc. are used more frequently in this article, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of this application. Interpreting them as any additional restrictions is contrary to the spirit of this application. The terms "first", "second", etc. (if any) in the description and claims of the embodiments of this application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0059] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of this application and are not intended to limit them. Although this application has been described in detail with reference to the aforementioned embodiments, those skilled in the art will appreciate that they may modify the technical solutions described in the aforementioned embodiments or replace some or all of the technical features therein with equivalents. However, such modifications or replacements do not deviate from the essence of the corresponding technical solutions within the scope of the various embodiments of this application.

Claims

1. A nonwoven fiber sheet manufacturing device with real-time adjustment, characterized in that: include spinnerets, used to spin fiber tows; a spinneret baffle, arranged in front of the spinneret and used for receiving the fiber bundle; an impact force monitoring device, disposed on the spinneret baffle, for detecting the impact force of the fiber bundle; A telescopic rotating device, used for driving the spinneret baffle to rotate and telescope; Wherein, the telescopic rotation device includes a rotation drive module, a first shaft, a telescopic compensation mechanism and a second shaft, one end of the first shaft is connected to the output end of the rotation drive module, the end of the first shaft away from the rotation drive module is connected to the telescopic compensation mechanism, the end of the telescopic compensation mechanism away from the first shaft is connected to the second shaft, and the end of the second shaft away from the telescopic compensation mechanism is connected to the spinneret; the telescopic compensation mechanism can drive the second shaft to extend and retract; the rotation drive module drives the first shaft, the telescopic compensation mechanism, the second shaft and the spinneret to rotate simultaneously; The telescopic compensation mechanism includes an outer shell having an installation cavity therein; one end of the outer shell is connected to the first shaft, and the other end is provided with an opening for the second shaft to enter the installation cavity; a telescopic drive module is disposed in the installation cavity, one end of the telescopic drive module is connected to the first shaft; the other end of the telescopic drive module is connected to the second shaft via a connector, and the telescopic drive module is capable of driving the second shaft to move; The inner wall of the installation cavity is provided with a slide rail, and the outer periphery of the connecting member is provided with at least one boss for connecting with the slide rail; At least two telescopic connecting rods are provided on the outer shell, one end of the telescopic connecting rod is connected to the outer shell, and one end of the telescopic connecting rod away from the outer shell is connected to the spinning baffle; The outer shell is provided with a distance sensor, and the distance sensor is used to detect the distance between the outer shell and the spinning baffle; The control module is electrically connected to the impact force monitoring device and the telescopic rotation device.

2. The nonwoven fiber sheet manufacturing equipment according to claim 1, characterized in that: At least two symmetrically arranged bosses are provided on the outer periphery of the connecting piece.

3. The nonwoven fiber sheet manufacturing equipment according to claim 1, characterized in that: A limit block is provided at one end of the installation cavity away from the first shaft body, for limiting the position of the connecting member.

4. The nonwoven fiber sheet manufacturing apparatus according to claim 1, wherein: Three telescopic connecting rods are provided, and the telescopic connecting rods are arranged around the second shaft.

5. The nonwoven fiber sheet manufacturing equipment with real-time adjustment according to claim 4, characterized in that: Reinforcement brackets are arranged between two ends of the telescopic connecting rods connected to the spinneret baffles; the reinforcement brackets are triangular in shape.

6. The nonwoven fiber sheet manufacturing equipment with real-time adjustment according to claim 1, characterized in that: The telescopic drive module is a combination of a servo motor and a telescopic rod.

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