Monomer suction hood

Abstract

The utility model relates to the technical field of nylon 66 fiber spinning production, in particular to a single suction cover. Comprising a cover body, a suction inlet is formed in one end of the cover body, a discharge outlet is formed in the other end of the cover body, and a plurality of electric heating devices are arranged at the end, close to the suction inlet, of the inner wall of the cover body and connected with a controller. According to the monomer suction hood provided by the utility model, the electric heating device is arranged on the inner wall of the hood body, when more nylon 66 monomer crystals are arranged at the suction inlet, the electric heating device is started through the controller, and the nylon 66 monomer crystals are melted into liquid under the action of high temperature, are pumped into the monomer suction pipeline through the suction device and are discharged into treatment equipment; the device is simple and convenient to operate, the normal production process of spinning and the fiber quality cannot be influenced, the time for manually cleaning monomer crystals is shortened, the spinning production efficiency is improved, the production cost is reduced, and the problem of unsmooth suction caused by the monomer crystals is effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to nylon 66 fiber spinning production technical field especially is a kind of monomer suction hood. BACKGROUND

[0002] Polyhexamethylene adipate is also called nylon 66, which is the most commonly used polyamide material. During the melt spinning process of nylon 66 fiber spinning, monomers, low molecular polymers and other volatile substances are generated at the spinneret. The volatilized monomers and low molecular polymers can contaminate the surface of the spinneret, affecting the quality of the spinning and shortening the service life of the spinneret. At the same time, it worsens the working environment of the spinning chamber. Generally, a monomer suction device is provided during the spinning process, and a suction hood is used to suction the monomer polymer. However, the monomer polymer will crystallize at the suction port of the suction hood after cooling. With the accumulation of time, the crystallization will block the suction port of the suction hood.

[0003] Currently, steam is used to clean the suction port. On the one hand, using steam to clean can affect the normal spinning process, causing fiber strip dryness or breakage, which leads to a decrease in product quality and an increase in waste silk rate. On the other hand, manual operation is required frequently, which is time-consuming and labor-intensive, reducing production efficiency. Therefore, a suction hood for conveniently cleaning nylon 66 monomer crystallization at the suction port is proposed. SUMMARY

[0004] The utility model aims at providing a monomer suction hood, which can clean the monomer crystallization accumulated at the suction port without affecting the normal spinning process, reduce the time for manual cleaning, and improve the spinning production efficiency.

[0005] The utility model provides a monomer suction hood, which comprises a cover body, an inlet is arranged at one end of the cover body, an outlet is arranged at the other end of the cover body, a plurality of electric heating devices are arranged at the inner wall of the cover body near the inlet, and the electric heating devices are connected with a controller.

[0006] Further, the electric heating device uses an electric heating plate, and the electric heating plate is connected with a power switch through wires.

[0007] Further, a temperature sensor is arranged on the outer wall of the cover body, the probe of the temperature sensor extends into the cover body, and the temperature sensor is connected with the controller.

[0008] Further, a mounting bracket is further included, the mounting bracket extends into the cover body through the inlet, and the electric heating device is fixedly connected with the mounting bracket.

[0009] Further, a sliding groove is arranged on the inner wall of the cover body, a sliding block is arranged on the mounting bracket, and the sliding block can slide along the sliding groove.

[0010] Further, one end of the mounting frame is provided with a square frame, the square frame is located outside the cover body, connecting rods are arranged on two side walls of the square frame, a fixed block is arranged on the outer wall of the cover body, a fixed hole is arranged on the fixed block, and one end of the connecting rod is inserted into the fixed hole.

[0011] Further, a limiting hole is arranged on the connecting rod, and a limiting bolt is arranged in the fixed hole and connected with the limiting hole.

[0012] Further, the connecting rod is a telescopic rod.

[0013] Further, the cross section of the cover body is square, and the size of the cover body gradually decreases from the end close to the suction inlet to the end close to the discharge outlet.

[0014] Further, the four inner side walls of the cover body are each provided with the electric heating device.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] The technical scheme of the utility model sets the electric heating device on the inner wall of the cover body, when the nylon 66 monomer crystals are relatively more at the suction inlet, the electric heating device is started through the controller, the nylon 66 monomer crystals are melted into liquid state under the action of high temperature, are sucked into the monomer suction pipeline through the suction device and are discharged into the processing equipment, simple operation is convenient, the normal production process of spinning and the fiber quality are not affected, the time of manually cleaning the monomer crystals is reduced, the spinning production efficiency is improved, the production cost is reduced, and the problem of poor suction caused by the monomer crystals is effectively solved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiment or the prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0018] Figure 1 It is a structure schematic view of the suction cover in the embodiment 1 of the utility model;

[0019] Figure 2 It is a schematic view of the suction cover installation and use in the embodiment 1 of the utility model;

[0020] Figure 3 It is a structure schematic view of the mounting frame in the embodiment 2 of the utility model;

[0021] Figure 4It is the structure schematic view of suction hood in the embodiment 2 of the utility model;

[0022] Figure 5 It is the structure schematic view of mounting frame and square frame in the embodiment 3 of the utility model;

[0023] Figure 6 It is the structure schematic view of suction hood in the embodiment 3 of the utility model;

[0024] Figure 7 It is the sectional view of suction hood in the embodiment 3 of the utility model.

[0025] The figure mark explanation: 1 - cover body;101 - suction port;102 - discharge port;103 - fixed bolt;104 - sliding groove;2 - electric heating device;3 - power switch;4 - temperature sensor;5 - mounting frame;6 - sliding block;601 - screw hole;7 - square frame;8 - connecting rod;801 - limit hole;9 - fixed block;901 - fixed hole;902 - limit bolt;10 - monomer crystal;11 - suction pipeline;12 - spinneret;13 - side blowing cooling device. DETAILED DESCRIPTION

[0026] The technical scheme of the utility model will be described clearly and completely in combination with the embodiments, and obviously, the described embodiments are a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the protection scope of the utility model.

[0027] In the description of the utility model, it is understood that the orientation or position relation indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are the orientation or position relation shown based on the drawings, and only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as the limitation of the utility model.

[0028] In addition, the terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implying the number of the technical features indicated. Therefore, the features defined as "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" can explicitly or implicitly include one or more of the features. In the description of the present application, "a plurality of" means two or more, unless otherwise specifically limited. In addition, the terms "mounting", "connecting", "connection" should be broadly understood, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] Embodiment 1

[0030] A single suction hood, as shown in Figure 1 The hood 1 has a suction inlet 101 at one end and a discharge outlet 102 at the other end. A plurality of electric heating devices 2 are arranged on the inner wall of the hood 1 near the suction inlet 101. The electric heating devices 2 are connected to a controller.

[0031] The suction inlet 101 of the present embodiment is square, the discharge outlet 102 is circular, the cross-sectional shape of the hood 1 is square, and the size of the suction inlet 101 and the discharge outlet 102 of the hood 1 is fixed. The suction inlet 101 and the discharge outlet 102 have a certain length, and the size of the middle position of the hood 1 except the suction inlet 101 and the discharge outlet 102 gradually decreases from the end near the suction inlet 101 to the end near the discharge outlet 102. The electric heating devices 2 are fixedly installed on the four inner walls of the hood 1 near the suction inlet 101. The electric heating devices 2 can be installed on one or two side walls of the hood 1 according to actual production conditions, and the size of the electric heating devices 2 can be designed according to actual production conditions.

[0032] The electric heating devices 2 can be electric heating plates or other heating devices with resistance wires as heating elements. The purpose is to provide a high-temperature environment for the suction inlet 101 of the hood 1. The electric heating devices 2 are connected to a power switch 3 through wires, and the power switch 3 is also connected to a controller. The power switch 3 and the controller are respectively installed at positions convenient for workers in the production workshop to operate. A temperature sensor 4 is installed on the top wall of the hood 1. The probe of the temperature sensor 4 extends into the inside of the hood 1 to detect the heating temperature and transmit it to the controller. The heating temperature of the electric heating devices 2 is adjusted by the controller.

[0033] The electric heating device 2 in the embodiment adopts an electric heating plate, which is as thin as possible. When installed, a groove can be arranged on the inner wall of the cover body 1, and the electric heating plate is fixed in the groove, so that the heating surface of the electric heating plate is flush with the inner wall of the cover body 1, thereby avoiding that the size of the electric heating plate protruding from the groove is large, and preventing the monomer crystals from being stuck in the gap between the electric heating plate and the cover body 1.

[0034] The monomer suction cover provided in the embodiment is installed by using the conventional technical means in the field, as shown in Figure 2 Figure 2 The side blowing cooling device 13 in the figure is prior art), the cover body 1 is installed below the spinneret plate 12, so that the suction inlet 101 of the cover body 1 is parallel to the spinneret plate 12, and the discharge outlet 102 of the cover body 1 is connected with the suction device through the suction pipeline 11. When the monomer crystals 10 at the suction inlet 101 are too much and need to be cleaned, the electric heating device 2 is started through the power switch 3, the heating temperature is detected by using the temperature sensor 4, and when the heating temperature is low, the heating temperature of the electric heating device 2 is adjusted by using the controller. The monomer crystals 10 are sucked along the suction pipeline 11 to the suction device under the action of high temperature, and finally reach the processing equipment.

[0035] Embodiment 2

[0036] A monomer suction cover, as shown in Figure 4 The technical solution in the embodiment is basically the same as that in embodiment 1, and the difference lies in that the embodiment is provided with a mounting rack 5, and the electric heating device 2 is fixed on the mounting rack 5. When the electric heating device 2 needs to be overhauled or replaced, the mounting rack 5 can be directly taken out.

[0037] As shown in Figure 3 The mounting rack 5 is composed of four metal plates welded end to end, and has a rectangular shape, which is the same as the shape of the inner wall at the suction inlet 101. The electric heating device 2 is directly fixed and installed on the inner walls of the four metal plates. The middle positions of the left and right outer walls of the mounting rack 5 are respectively fixed with sliding blocks 6, and the four inner walls of the cover body 1 are respectively provided with grooves, among which the grooves in the left and right walls are provided with sliding grooves, and the sliding grooves adopt U-shaped sliding grooves. When installed, the two sliding blocks 6 of the mounting rack 5 are respectively slid along the sliding grooves on the inner walls of the cover body 1, so that the mounting rack 5 is pushed into the grooves in the cover body 1 through the suction inlet 101. The same as in embodiment 1, when the mounting rack 5 is installed, the heating surface of the electric heating plate is flush with the inner wall of the cover body 1. Threaded holes 601 are arranged on the sliding blocks 6, and the outer wall of the cover body 1 has fixing bolts 103. When the mounting rack 5 is installed in place, the fixing bolts 103 and the threaded holes 601 on the sliding blocks 6 are tightened and fixed. When the mounting rack 5 is installed, one end of the mounting rack 5 is flush with the end of the cover body 1 close to the suction inlet 101.

[0038] ​The electric heating device 2 is fixed on the mounting frame 5, and in use, the mounting frame 5 is directly pushed into the cover body 1 along the sliding groove, and is fixed through the fixing bolt 103; when the electric heating device 2 is overhauled or replaced, the fixing bolt 103 is directly unscrewed, and the mounting frame 5 is directly slid out.

[0039] Embodiment 3

[0040] A single suction hood, as Figure 6 The technical scheme in the embodiment is basically the same as that in embodiment 2, and the difference lies in that the mounting frame 5 and the cover body 1 are connected in different ways, the mounting frame 5 and the cover body 1 are connected through the connecting rod 8 and the fixing block 9 in the embodiment, and the sliding block 6 in the embodiment is not provided with the threaded hole 601.

[0041] As shown in Figure 7 The cover body 1 is provided with recesses on four inner walls, and the sliding grooves 104 are arranged in the recesses of the left and right walls, respectively, the sliding block 6 on the mounting frame 5 slides along the sliding groove 104. Figure 5 and Figure 6 One end of the mounting frame 5 is fixed with the mouth-shaped frame 7, and the mouth-shaped frame 7 is located outside the cover body 1 when the mounting frame 5 is installed. The inner circle size of the mouth-shaped frame 7 is consistent with the inner wall size of the cover body 1, that is, the heating surface of the electric heating plate is aligned with the inner circle of the mouth-shaped frame 7 when the electric heating plate is installed.

[0042] The outer circle of the mouth-shaped frame 7 is larger than the outer wall of the cover body 1, the connecting rod 8 is fixed on the side wall of the mouth-shaped frame 7, the connecting rod 8 adopts an extension rod, and the end of the connecting rod 8 away from the mouth-shaped frame 7 penetrates through the limiting hole 801; the fixing block 9 is fixed on the outer wall of the cover body 1, the fixing hole 901 is penetrated through the fixing block 9, the connecting rod 8 is adjusted to be elongated when the mounting frame 5 is installed, and the connecting rod 8 is inserted into the fixing hole 901; the threaded hole perpendicular to the fixing hole 901 is arranged on the fixing block 9, the limiting bolt 902 is arranged in the threaded hole, and the limiting bolt 902 is screwed into the threaded hole and tightened with the limiting hole 801 after the connecting rod 8 is inserted into the fixing hole 901, thereby fixing the mounting frame 5.

[0043] The number and position of the connecting rod 8 and the fixing block 9 can be installed according to the equipment space of the actual production workshop, the fixing block 9 can be arranged on any one of the top wall, the bottom wall, the left side wall and the right side wall of the cover body 1, or the fixing block 9 can be arranged on the opposite two side walls or all four side walls, and the connecting rod 8 can be arranged on the corresponding position of the mouth-shaped frame 7, and the connecting rod 8 can adopt an extension rod with a locking device.

[0044] The electric heating device 2 is fixed on the mounting frame 5, and when in use, the sliding block 6 on the mounting frame 5 is directly pushed into the cover body 1 along the sliding groove 104, and is fixed with the cover body 1 through the connecting rod 8, the fixing block 9 and the limiting bolt 902; when the electric heating device 2 is overhauled or replaced, the limiting bolt 902 is directly unscrewed, and the T-shaped frame 7 is pulled, so that the mounting frame 5 can be taken out, and the operation is simple and convenient.

[0045] The single monomer suction cover is provided with the electric heating device at the suction inlet, so that the nylon 66 monomer is melted into liquid state under the action of high temperature and flows into the monomer suction pipeline, the effect of conveniently cleaning the monomer crystallization is achieved, the normal spinning production process and the fiber quality are not affected, the workers do not need to frequently operate and clean, the spinning efficiency is improved, the production cost is reduced, the problem of poor suction caused by monomer condensation is effectively solved, and the utility model has strong practicability.

[0046] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that: they can still modify the technical solutions recorded in the above embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A single suction hood, characterized in that The utility model provides a kind of electric heating device, including cover (1), the cover (1) one end is equipped with suction port (101), the other end is equipped with exhaust port (102), the inner wall of the cover (1) is equipped with several electric heating devices (2) near the one end of suction port (101), the electric heating device (2) is connected with controller; It also includes a mounting bracket (5) that extends into the cover (1) through the suction port (101), and the electric heating device (2) is fixedly connected with the mounting bracket (5). The inner wall of the cover (1) is provided with a sliding groove (104), and the mounting bracket (5) is provided with a sliding block (6) that can slide along the sliding groove (104).

2. The single suction hood of claim 1, wherein, The electric heating device (2) uses an electric heating plate, which is connected with a power switch (3) through a wire.

3. The single suction hood of claim 1, wherein, The outer wall of the cover (1) is provided with a temperature sensor (4), the probe of the temperature sensor (4) extends into the cover (1), and the temperature sensor (4) is connected with the controller.

4. The unitary suction hood of claim 1, wherein, One end of the mounting bracket (5) is provided with a square frame (7), the square frame (7) is located outside the cover (1), the sidewall of the square frame (7) is provided with a connecting rod (8), the outer wall of the cover (1) is provided with a fixed block (9), the fixed block (9) is provided with a fixed hole (901), one end of the connecting rod (8) is inserted into the fixed hole (901).

5. The single suction hood of claim 4, wherein, The connecting rod (8) is provided with a limiting hole (801), and the fixed block (9) is provided with a limiting bolt (902), the limiting bolt (902) is connected with the limiting hole (801).

6. The single suction hood of claim 4, wherein, The connecting rod (8) uses a telescopic rod.

7. The unitary extraction hood of claim 1, wherein, The cross-sectional shape of the cover (1) is square, and the size of the cover (1) gradually decreases from the end near the suction port (101) to the end near the exhaust port (102).

8. The single suction hood of claim 7, wherein, The four inner walls of the cover (1) are each provided with the electric heating device (2).

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