Hot box and false twist texturing machine

Abstract

The invention provides a hot box and a false twist texturing machine. The hot box comprises a box body, a plurality of hot rails arranged in the box body and a flow guide device arranged at the bottoms of the hot rails. The flow guide device comprises a flow guide wall which is obliquely arranged downwards relative to the horizontal plane, and a flow guide pipe connected to the flow guide wall; the bottom end, close to the flow guide device, of the hot rail is provided with an inclined guide part extending towards the flow guide wall, the end, close to the hot rail, of the flow guide wall abuts against the inclined guide part or partially extends into the inclined guide part, and the oil dirt is guided to the flow guide pipe from the inclined guide part through the flow guide wall. According to the flow guide device disclosed by the invention, the energy consumption of the hot box and the false twist texturing machine is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of textile machinery, in particular to a hot box and a false twist texturing machine. Background Art

[0002] In the process of chemical fiber filament processing, for example, in the process of heating chemical fibers such as pre-drawn yarn (POY) in a hot box and stretching the chemical fibers through subsequent conveying rollers and performing false twist deformation on the heated chemical fibers through a false twisting device, a large amount of oil smoke is generated due to the decomposition of the chemical fibers under high temperature heating or the volatilization of additives added during the chemical fiber processing in the high temperature environment formed by the hot box.

[0003] The prior art usually uses a negative pressure source to connect the exhaust pipe of the hot box, and forms a negative pressure inside the hot box to discharge the oil smoke from the hot box. However, since it is difficult for the negative pressure source to completely and timely suck out the volatilized oil smoke in the hot box, as the use time increases, the oil mist contained in the oil smoke adheres to the hot rail and gradually accumulates to form oil stains. Since the hot box is usually installed at an angle, the oil stains on the hot rail drip from the gap between the hot rail and the door panel under the action of gravity. In particular, in order to suppress the generation of oil stains and improve the extraction effect of oil smoke in the prior art, it is usually necessary to continuously perform extraction operations on the oil smoke generated in the hot box or increase the suction force of the negative pressure source, but this will cause a large amount of heat loss in the hot box, thereby causing excessive heat loss in the hot box and the false twist texturing machine containing the hot box, resulting in energy waste.

[0004] It should be noted that the above introduction to the background technology is only for the convenience of providing a clear and complete description of the technical solutions of the present application and facilitating the understanding of those skilled in the art. It cannot be considered that the above technical solutions are well known to those skilled in the art simply because they are described in the background technology section of the present application. Summary of the invention

[0005] The purpose of the present invention is to disclose a hot box and a false twist texturing machine, which are used to solve the many defects of the hot box in the prior art, especially to reduce the energy consumption of the hot box and the false twist texturing machine.

[0006] To achieve the above-mentioned object, in a first aspect, the present invention provides a heat box, comprising: a box body, a plurality of heat rails arranged in the box body, and a flow guide device arranged at the bottom of the heat rails;

[0007] The flow guide device comprises: a flow guide wall arranged to be inclined downward relative to a horizontal plane, and a flow guide pipe connected to the flow guide wall;

[0008] The bottom end of the hot rail close to the guide device is constructed with an inclined guide portion extending toward the guide wall, and one end of the guide wall close to the hot rail abuts against the inclined guide portion or partially extends into the inclined guide portion, so that the guide wall guides the oil from the inclined guide portion to the guide pipe.

[0009] As a further improvement of the present invention, the guide wall comprises:

[0010] A bottom wall, the bottom wall abutting against the inclined guide portion or partially extending into the inclined guide portion, and two oppositely arranged side walls extending along the length direction of the bottom wall;

[0011] The bottom wall and the side wall form a guide groove connected to the guide pipe to at least discharge oil and dirt from the box body.

[0012] As a further improvement of the present invention, the guide wall comprises:

[0013] A bottom wall, the bottom wall abutting against the inclined guide portion or partially extending into the inclined guide portion, two oppositely arranged side walls extending along the length direction of the bottom wall, and a guide wall arranged on the bottom wall and inclined downward relative to a horizontal plane and laterally connecting the side walls;

[0014] The side wall extends toward the hot rail and abuts against the inclined guide portion or partially extends into the inclined guide portion, and the bottom wall, the side wall and the guide wall form a guide groove connected to the guide pipe to at least discharge oil from the box body.

[0015] As a further improvement of the present invention, the flow guiding device further comprises:

[0016] A guide wall disposed on the bottom wall and tilted downward relative to a horizontal plane and laterally connected to the side wall;

[0017] The guide wall extends toward the hot rail and partially extends beyond a vertical normal line of a bottom end of the inclined guide portion, and the guide wall forms an obtuse angle with the vertical normal line.

[0018] As a further improvement of the present invention, the guide wall extends toward the hot rail and partially extends over a vertical normal line of a bottom end of the inclined guide portion, and the guide wall forms an obtuse angle with the vertical normal line.

[0019] As a further improvement of the present invention, the guide pipe is arranged on the bottom wall at an angle downward relative to the horizontal plane, and the inner wall of the pipe opening at one end of the guide pipe connected to the bottom wall smoothly transitions to the inner wall of the guide wall facing the hot rail.

[0020] As a further improvement of the present invention, the heat box further comprises:

[0021] A support plate is arranged inside the box body and connected to the guide wall.

[0022] As a further improvement of the present invention, the heat box further comprises: a mounting groove formed in the box body, and a baffle plate arranged on the box body;

[0023] The heat rail and the guide device are arranged in the installation slot, and the baffle extends into the installation slot to clamp the side wall.

[0024] As a further improvement of the present invention, the side wall is constructed with a positioning portion extending toward the thermal rail, and the positioning portion is connected to the thermal rail.

[0025] As a further improvement of the present invention, the heat box further comprises:

[0026] A first suction pipe runs through the box and is connected to the flow guide pipe.

[0027] As a further improvement of the present invention, the heat box further comprises:

[0028] A second suction pipe is connected to the box and is arranged away from the inclined guide portion, and the first suction pipe and the second suction pipe form the same or different suction forces.

[0029] As a further improvement of the present invention, the suction force formed by the second suction pipe is greater than the suction force formed by the first suction pipe.

[0030] As a further improvement of the present invention, the hot rail forms a channel for the chemical fiber to pass through, and a channel wall formed on both sides of the channel, and the channel wall and the end of the channel extend to the inclined guide portion;

[0031] The width of the guide wall in the transverse direction is greater than the transverse width between the groove walls.

[0032] In a second aspect, the present invention further provides a false twist texturing machine, comprising: a yarn conveying device, a cooling device, a false twisting device, and a heat box as described in any one of the first aspects and arranged between the yarn conveying device and the cooling device.

[0033] Compared with the prior art, the beneficial effects of the present invention are as follows: the inclined guide portion formed at the bottom end of the hot rail is used to guide the oil to flow toward the guide wall on the inclined guide portion; since one end of the guide wall close to the hot rail abuts against the inclined guide portion or partially extends into the inclined guide portion, the oil can flow along the inclined guide portion to the guide wall, and then the guide wall guides the oil to flow to the guide pipe, and the oil is discharged through the guide pipe, thereby preventing the oil from dripping from the bottom end of the hot rail through the gap between the hot rail and the door panel, and also reducing the demand for a negative pressure source, and there is no need to continuously perform high-intensity oil fume extraction operations to suppress the generation of oil, thereby reducing heat loss in the hot box and the false twist texturing machine including the hot box, and reducing the energy consumption of the hot box and the false twist texturing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic cross-sectional view of the heat box disclosed by the present invention;

[0035] Figure 2 for Figure 1 The enlarged view shown in the middle circle A, wherein the end of the guide wall close to the hot rail abuts against the inclined guide portion;

[0036] Figure 3 is a schematic diagram of a flow guide device in another embodiment, wherein the side wall extends toward the hot rail and abuts against the inclined guide portion;

[0037] Figure 4 It is a schematic diagram of an end of the guide wall close to the hot rail abutting against the inclined guide portion, wherein the side wall is constructed with a positioning portion extending toward the hot rail;

[0038] Figure 5 It is a three-dimensional schematic diagram of the heat box disclosed in the present invention with the guide device omitted;

[0039] Figure 6 for Figure 5 The enlarged image shown in the middle circle C;

[0040] Figure 7 is a schematic diagram showing that the inclined guide portion is configured as a concave surface;

[0041] Figure 8 is a schematic diagram showing that the inclined guide portion is configured as a convex surface;

[0042] Fig. 9 A schematic diagram of a portion of a guide wall or guide plate extending out of a side wall and a triangular connecting plate filled with the side wall;

[0043] Fig.10 For along Fig. 9 A cross-sectional view formed by cutting the bottom wall and the side wall along the DD direction;

[0044] Fig.11 A schematic diagram of forming a groove and a groove wall for a hot rail;

[0045] Fig.12 It is a schematic diagram of a false twist texturing machine including a heat box disclosed in the present invention. DETAILED DESCRIPTION

[0046] The present invention is described in detail below in conjunction with the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in the field based on these embodiments are all within the scope of protection of the present invention.

[0047] In the process of heat treatment of chemical fiber (for example, pre-drawn yarn) by the hot box, the chemical fiber is decomposed by high temperature heating or the additives added in the chemical fiber processing process volatilize under the high temperature environment formed by the hot box, thereby forming a large amount of oil smoke. In the prior art, a negative pressure source is usually used to connect the exhaust pipes at the upper and lower ends of the hot box, and a negative pressure is formed by forming a negative pressure inside the hot box (that is, the space area 802 formed between the hot rail 10 and the door panel 801) to discharge the oil smoke from the hot box. However, since the negative pressure source is difficult to completely and timely suck out the oil smoke volatilized in the hot box, as the use time increases, the oil mist contained in the oil smoke adheres to the hot rail and gradually accumulates to form oil stains. At the same time, since the hot box is usually tilted to the false twist texturing machine, the hot rail is tilted with the hot box, and the oil stains on the hot rail flow naturally along the tilt direction of the hot rail under the action of gravity, and converge to the bottom end of the hot rail (that is, the bottom end position of the hot rail), causing the oil stains to drip from the bottom end of the hot rail from the gap between the hot rail and the door panel. In particular, in order to suppress the generation of oil pollution and improve the extraction effect of oil smoke in the prior art, it is usually necessary to continuously perform extraction operations on the oil smoke generated in the hot box or increase the suction force of the negative pressure source, but this will cause a large amount of heat loss in the hot box, thereby causing excessive heat loss in the hot box and the false twist texturing machine including the hot box, resulting in energy waste. The hot box 100 in this application can be understood as a deformation hot box configured in the false twist texturing machine 1000, or, for example, using a biphenyl heating method to heat the chemical fiber N and apply it to other types of fiber processing equipment (i.e., the upper concept of the false twist texturing machine 1000), and this application does not specifically limit or exclude it.

[0048] The heat box 100 disclosed in the present application is used to perform a heating treatment on the chemical fiber N. The oily dirt gathered at the bottom of the hot rail 10 will flow along the inclined guide part 11 to the guide wall 21 through the inclined guide part 11 extending toward the guide wall 21. The end of the guide wall 21 close to the hot rail 10 abuts against the inclined guide part 11 or partially extends into the inclined guide part 11, so that the oily dirt can flow along the inclined guide part 11 to the guide wall 21, and then flow to the guide pipe 22 through the guide wall 21 to realize the discharge of the oily dirt, thereby preventing the oily dirt from flowing from the bottom of the hot rail 10 to the hot rail 10 and the door panel 80. 1, and can also reduce the demand for the exhaust air volume of the negative pressure source, without the need to continue high-intensity fume extraction operation, and even the exhaust pipe (i.e., the first suction pipe 70) under the hot box 100 does not need to be connected to the negative pressure source, which can inhibit the accumulation of oil stains in the hot box 100 and enable the oil stains to be discharged from the hot box 100, thereby reducing the heat loss in the hot box 100 and the false twist texturing machine 1000 including the hot box 100, reducing energy waste, and achieving the purpose of energy saving and consumption reduction. At the same time, combined with Fig.12 As shown, the heat box 100 disclosed in the present application can also be used in the oily environment. Figure 2 When dripping downward in the direction indicated by the middle arrow B22, it can be collected and discharged by the guide device 20, thereby effectively preventing the dripping high-temperature oil droplets from polluting the ground and preventing the dripping high-temperature oil droplets from causing personal injury to the operator in the operating channel 500 of the false twist texturing machine 1000.

[0049] Please refer to Figures 1 to 12 A specific implementation of a hot box and a false twist texturing machine is disclosed.

[0050] Ginseng Figures 1 to 6 As shown, the hot box 100 includes: a box body 80, a plurality of hot rails 10 arranged in the box body 80, and a guide device 20 arranged at the bottom of the hot rail 10; the guide device 20 includes: a guide wall 21 inclined downward relative to a horizontal plane, and a guide pipe 22 connected to the guide wall 21; the bottom end of the hot rail 10 close to the guide device 20 is constructed with an inclined guide portion 11 extending toward the guide wall 21, and one end of the guide wall 21 close to the hot rail 10 abuts against the inclined guide portion 11 or partially extends into the inclined guide portion 11, so that the guide wall 21 guides the oil from the inclined guide portion 11 to the guide pipe 22.

[0051] During the heating process of the heat box 100 on the chemical fiber N, the oil accumulated on the heat rail 10 flows naturally along the inclined direction of the heat rail 10 under the action of gravity, and converges to the bottom end of the heat rail 10, and passes through the inclined guide portion 11 formed at the bottom end of the heat rail 10, so as to guide the oil to flow along the inclined guide portion 11. Figure 2The oil flows toward the guide wall 21 in the direction indicated by the middle arrow B1. Since the end of the guide wall 21 close to the hot rail 10 abuts against the inclined guide portion 11 or partially extends into the inclined guide portion 11, the oil can flow along the inclined guide portion 11. Figure 2 The oil flows in the direction indicated by the arrow B21 to the guide wall 21, and then the oil is guided along the guide wall 21. Figure 2 The oil flows in the direction indicated by the middle arrow B3 to the guide pipe 22 , and the oil is discharged from the heat box 100 through the guide pipe 22 .

[0052] In some examples, reference Figure 1 and Figure 5 and Figure 6 As shown, the box body 80 is the outer shell of the heat box 100, which is used to accommodate the heat rail 10 and the guide device 20. The chemical fiber N forms a moving path M when being transported to the heat box 100, and the chemical fiber N is heated by the high temperature environment in the heat box 100. The heat box 100 is tiltedly installed on the false twist texturing machine 1000, and the heat rail 10 is tilted with the heat box 100, so the heat rail 10 has a certain tilt angle relative to the horizontal plane, such as 50°, 55°, 60°, etc., and the present invention is not limited to this, so that the oil can flow naturally along the heat rail 10 to the guide device 20 at the bottom of the heat rail 10 by gravity.

[0053] In some examples, the guide wall 21 and the guide tube 22 are configured as an integrated structure, or the guide wall 21 and the guide tube 22 are configured as detachable split components, which is not limited in the present invention.

[0054] In some examples, the inclined guide portion 11 may be configured as follows Figure 2 The plane shown in Figure 7 and Figure 8 The curved surface shown in the figure, or even a combination of a curved surface and a flat surface (this state is not shown), can be used as long as it can guide the oil to flow from the inclined guide portion 11 to the guide wall 21. For example, the inclined guide portion 11 provided as a curved surface is as follows: Figure 7 The concave surface 11b shown in FIG. 1 is concave upward relative to the horizontal plane h2, or Figure 8 The convex surface 11a shown in FIG. 1 is convex downward relative to the horizontal plane h1, but the present invention is not limited to this.

[0055] In some examples, the inclined guide portion 11 extends toward the guide wall 21 , and the extending direction of the inclined guide portion 11 forms an angle with the horizontal plane. The flow speed of the oil can be adjusted by setting the inclination angle of the inclined guide portion 11 .

[0056] In some examples, reference Figure 2 As shown, the guide wall 21 is inclined downward relative to the horizontal plane H, as shown in FIG. Figure 2As shown in , the extension direction E of the guide wall 21 forms an angle α with the horizontal plane H. By setting the angle α of the guide wall 21 to adjust the flow direction of the oil, it is ensured that the oil can flow smoothly to the guide tube 22 under the action of gravity, while preventing the oil from stagnating and accumulating on the guide wall 21. It should be noted that when the guide wall 21 does not interfere with the moving path M of the chemical fiber N, the closer the angle α is to 90°, the faster the flow speed of the oil on the guide wall 21, and the higher the discharge efficiency. By adjusting the angle α of the guide wall 21, the efficient discharge of the oil can be ensured, and it is necessary to ensure that the moving path M of the chemical fiber N is not affected.

[0057] In some examples, the hot rail 10 forms a channel 12 for the chemical fiber N to pass through, and a channel wall 13 formed on both sides of the channel 12, and the ends of the channel wall 13 and the channel 12 extend to the inclined guide portion 11. During the process of the hot box 100 performing a heating treatment on the chemical fiber N, the oil mist contained in the oil smoke adheres to the surface of the channel wall 13 and the channel 12 and gradually accumulates to form oil stains. The oil stains accumulated on the surface of the channel wall 13 and the channel 12 flow naturally along the inclined direction of the hot rail 10 under the action of gravity, so as to flow smoothly to the inclined guide portion 11 at the end of the channel wall 13 and the channel 12, avoid gathering on the surface of the channel wall 13 and the channel 12, and finally discharge from the hot box 100. Fig.11 As shown, the guide wall 21 is arranged in a lateral direction (ie Figure 6 The width w2 formed by the guide wall 21 (in the direction shown by the X-axis) is greater than the lateral width w1 between the groove walls 13. The lateral width w2 of the guide wall 21 is greater than the lateral width w1 of the three groups of groove walls 13. The lateral width w of the guide wall 21 includes the width of the bottom wall 211 that abuts against the inclined guide portion 11 or partially extends into the inclined guide portion 11, and also includes the overall width of the bottom wall 211 and the side wall 212 that abut against the inclined guide portion 11 or partially extend into the inclined guide portion 11, so that the guide wall 21 can fully guide the oil and dirt flowing from the groove wall 13 and the end of the channel 12 to the inclined guide portion 11 into the guide groove 210, and prevent the oil and dirt from leaking during the flow of the guide wall 21.

[0058] In some examples, one end of the guide wall 21 close to the hot rail 10 abuts against a portion of the inclined guide part 11 that is lower than the end of the groove 12 in the vertical direction, or one end of the guide wall 21 close to the hot rail 10 partially extends into a portion of the inclined guide part 11 that is lower than the end of the groove 12 in the vertical direction. This allows the guide wall 21 to effectively receive the oil that flows from the groove wall 13 and the end of the groove 12 to the inclined guide part 11. It should be noted that, when the guide wall 21 does not interfere with the moving path M of the chemical fiber N, the end of the guide wall 21 close to the hot rail 10 abuts against or partially extends into the position of the inclined guide part 11, which is lower than the end of the groove 12 in the vertical direction and the closer to the end of the groove 12, the oil is more easily guided to the guide wall 21 by the inclined guide part 11 due to gravity, thereby improving the oil discharge efficiency.

[0059] In some examples, reference Figure 1 As shown, the inclined guide portion 11 is lower than the end of the groove 12 in the vertical direction. The present invention takes the bottom end of the inclined guide portion 11 as an example. The end of the guide wall 21 close to the hot rail 10 abuts against the bottom end of the inclined guide portion 11 or partially extends into the bottom end of the inclined guide portion 11. Figure 2 The liquid flows in the direction indicated by the arrow B1 to the bottom end of the inclined guide portion 11, and flows from the bottom end of the inclined guide portion 11 along the Figure 2 The oil flows toward the guide wall 21 in the direction indicated by the middle arrow B21 , so that the guide wall 21 can guide the oil to further flow into the guide pipe 22 , and the oil is discharged from the heat box 100 through the guide pipe 22 .

[0060] In some examples, the end of the guide wall 21 close to the hot rail 10 can be arranged to abut against the inclined guide portion 11 or partially extend into the inclined guide portion 11 to guide the oil from the inclined guide portion 11 to the hot rail 10. Figure 2 The flow direction indicated by the arrow B21 is to the guide wall 21. Figure 2 and Figure 3 As shown, one end of the guide wall 21 close to the hot rail 10 is against the inclined guide part 11, and one end of the guide wall 21 is directly in contact with and close to the inclined guide part 11, so as to ensure that the oil flowing down from the hot rail 10 can be smoothly transferred to the guide wall 21, and flow along the guide wall 21 to the guide pipe 22 for discharge, so as to ensure that the guide wall 21 and the inclined guide part 11 are tightly connected to avoid leakage of oil during the transfer process. Among them, the end of the guide wall 21 close to the hot rail 10 partially extends into the inclined guide part 11 (this state is not shown), so that the joint between the guide wall 21 and the inclined guide part 11 is tighter, so as to reduce the possible gap, prevent the oil from leaking during the flow of the guide wall 21, and reduce the risk of contamination of the external working area of ​​the hot box 100.

[0061] In some examples, reference Figure 2 As shown, the guide pipe 22 is connected to the guide wall 21 to collect the oil flowing from the bottom end of the hot rail 10 through the inclined guide part 11 and guided by the guide wall 21. The oil is discharged from the hot box 100 through the guide pipe 22 to prevent the oil from leaking from the hot box 100, protect the external working area of ​​the hot box 100 from being polluted, and avoid potential safety hazards to operators caused by the oil leaking from the hot box 100.

[0062] In some examples, reference Figure 2As shown, the guide wall 21 includes: a bottom wall 211, the bottom wall 211 abuts against the inclined guide portion 11 or partially extends into the inclined guide portion 11, and two oppositely arranged side walls 212 extending along the length direction of the bottom wall 211; the bottom wall 211 and the side walls 212 form a guide groove 210 connected to the guide pipe 22 to at least discharge the oil from the box body 80. The bottom wall 211 contacts the inclined guide portion 11 or partially extends into the inclined guide portion 11 to ensure that the oil can be discharged from the inclined guide portion 11 along the guide pipe 22. Figure 2 The oil flows smoothly to the guide wall 21 in the direction indicated by the middle arrow B1, and is naturally guided to the guide groove 210. The oil is collected by the guide groove 210 and guided to the guide pipe 22, so as to at least discharge the oil from the space area 802 formed between the door plate 801 and the hot rail 10, and finally discharge the oil from the box body 80 to prevent the oil from accumulating in the hot box 100. The boundary of the guide groove 210 is formed by two oppositely arranged side walls 212 to keep the oil in the flow path of the guide groove 210, ensure that the oil flows along the bottom wall 211 to the guide pipe 22, and avoid leakage caused by deviation from the flow path.

[0063] In some examples, reference Figure 2 As shown, the flow guide device 20 further includes: a guide wall 213 which is arranged on the bottom wall 211 and is tilted downward relative to the horizontal plane and is laterally connected to the side wall 212; the guide wall 213 extends toward the hot rail 10 and partially extends over the vertical normal Z of the bottom end of the inclined guide portion 11, and the guide wall 213 intersects with the vertical normal Z to form an obtuse angle β. Since the bottom end of the inclined guide portion 11 is the connection portion between the bottom wall 211 and the inclined guide portion 11, the oil stains may drip directly downward from the bottom end of the inclined guide portion 11 due to gravity and other reasons during the process of flowing from the inclined guide portion 11 to the bottom wall 211, and the vertical normal Z of the bottom end of the inclined guide portion 11 intersects with part of the guide wall 213 and forms an obtuse angle β, so that the oil stains from the bottom end of the inclined guide portion 11 along the bottom wall 211 may drip directly downward due to gravity and other reasons. Figure 2 The oil stain dripping downward in the direction indicated by the middle arrow B22 can directly fall on the guide wall 213, and then the guide wall 213 guides the oil stain along the guide wall 213. Figure 2 The oil enters the guide pipe 22 in the direction indicated by the middle arrow B4, and the oil is discharged from the hot box 100 through the guide pipe 22. In the process of the guide wall 213 guiding the oil to the bottom wall 211, the side wall 212 can block the oil flowing on the guide wall 213, so as to prevent the oil from escaping from the guide groove 210 from the guide wall 213. The oil is collected by the guide groove 210 and guided to the guide pipe 22, so as to discharge the oil and prevent the oil from accumulating in the hot box 100.

[0064] In some examples, reference Figure 3As shown, the guide wall 21 includes: a bottom wall 211, the bottom wall 211 abuts against the inclined guide portion 11 or partially extends into the inclined guide portion 11, two oppositely arranged side walls 212 extending along the length direction of the bottom wall 211, and a guide wall 213 arranged on the bottom wall 211 and tilted downward relative to the horizontal plane and laterally connected to the side wall 212; the side wall 212 extends toward the hot rail 10 and abuts against the inclined guide portion 11 or partially extends into the inclined guide portion 11, and the bottom wall 211, the side wall 212 and the guide wall 213 form a guide groove 210 connected to the guide pipe 22, so as to at least discharge the oil pollution out of the box body 80. The bottom wall 211 and the side wall 212 are pressed against or partially extended into the inclined guide part 11, so that the oil on the inclined guide part 11 can flow to the bottom wall 211 and the side wall 212, and the oil is guided to the guide groove 210 through the bottom wall 211 and the side wall 212. At the same time, the oil on the side wall 212 can be intercepted and guided to the bottom wall 211 through the guide wall 213 to prevent the oil from escaping from the side wall 212 and prevent the oil from leaking from the side wall 212 to the inside or outside of the box 80. The oil is collected by the guide groove 210 and guided to the guide pipe 22, and the oil is concentrated and discharged through the guide pipe 22 to form a space area 802 between the door plate 801 and the hot rail 10, so as to finally discharge the oil from the box 80 and prevent the oil from accumulating in the hot box 100.

[0065] In some examples, reference Figure 3 As shown, the guide wall 213 extends toward the hot rail 10 and partially extends over the vertical normal line Z of the bottom end of the inclined guide portion 11. The guide wall 213 forms an obtuse angle β with the vertical normal line Z. The guide wall 213 is used to guide the bottom end of the inclined guide portion 11 along the hot rail 10. Figure 3 The oil stains dripping in the direction indicated by the middle arrow B22 are guided to the bottom wall 211, and then the bottom wall 211 guides the oil stains along the Figure 3 The direction indicated by the middle arrow B4 is guided to the guide pipe 22. When the guide wall 213 guides the oil to the bottom wall 211, the side wall 212 can intercept the oil flowing on the guide wall 213 to prevent the oil from escaping from the guide groove 210 from the guide wall 213.

[0066] Ginseng Figure 2 and Figure 3 As shown, it should be noted that the guide wall 213 extends toward the hot rail 10 until a portion of the guide wall 213 intersects with the vertical normal Z of the bottom end of the inclined guide portion 11, so that the guide wall 213 can completely receive the oil dripping from the bottom end of the inclined guide portion 11. At the same time, the extension length of the guide wall 213 cannot interfere with the moving path M of the chemical fiber N.

[0067] In some examples, reference Figure 2 and Figure 3As shown, the guide wall 213 is inclined downward relative to the horizontal plane, and the extension direction of the guide wall 213 forms an obtuse angle β with the vertical normal Z of the bottom end of the inclined guide portion 11. By setting the obtuse angle β, the flow speed of the oil on the guide wall 213 is adjusted to ensure that the oil can flow smoothly to the guide pipe 22 under the action of gravity, while preventing the oil from stagnating and accumulating on the guide wall 213. It should be noted that the drawings in the specification of this application (for example, Figures 1 to 4 , Figures 7 to 9 ) are perpendicular to Figure 5 A cross-sectional view or a partial cross-sectional view formed by cutting the heat box 100 along the X-axis.

[0068] In some examples, reference Fig. 9 As shown, the portion of the guide wall 213 extending out of the side wall 212 forms a Fig. 9 The triangular connecting plate 27 shown in the figure is used to connect the bottom end of the inclined guide portion 11 along the Fig. 9 The oil stains dripping onto the guide wall 213 in the direction indicated by the middle arrow B22 are intercepted and gathered to prevent the oil stains from escaping from the guide groove 210 through the guide wall 213 .

[0069] In some examples, reference Figure 2 and Figure 3 As shown, the guide pipe 22 is arranged on the bottom wall 211 at an angle downward relative to the horizontal plane, and the inner wall 221 of the pipe mouth at one end of the guide pipe 22 connected to the bottom wall 211 smoothly transitions with the inner wall 231 of the side of the guide wall 213 facing the hot rail 10. The guide pipe 22 is tilted downward relative to the horizontal plane so that the oil in the guide groove 210 can flow into the guide pipe 22 more smoothly, and the oil is discharged from the guide pipe 22 to form a space area 802 between the door plate 801 and the hot rail 10, so as to finally discharge the oil from the box 80, avoid retention or accumulation caused by the flow resistance of the oil, and improve the efficiency of oil discharge. And the inner wall 221 of the pipe mouth is connected with the inner wall 2131 of the side of the guide wall 213 facing the hot rail 10, so that the oil from the bottom end of the inclined guide part 11 along the inner wall 221 of the pipe mouth is connected with the inner wall 2131 of the side of the guide wall 213 facing the hot rail 10, so that the oil from the bottom end of the inclined guide part 11 along the inner wall 221 of the pipe mouth is smoothly transitioned with the inner wall 2 ... Figure 2 The oil stains dripping onto the guide wall 213 in the direction indicated by the middle arrow B22 can flow along the inner wall 2131 to the inner wall 221 of the pipe opening and finally flow into the guide pipe 22 to avoid overflow or leakage of the oil stains.

[0070] In some examples, reference Figure 2 and Figure 5 and Figure 6As shown, the hot box 100 also includes: a support plate 60 disposed inside the box body 80 and connected to the guide wall 21. The support plate 60 is provided with a positioning hole 61 for the guide tube 22 to pass through. The guide wall 21 is constructed with a connection portion (not shown) formed outside the guide groove 210, and the connection portion can be fixed to the support plate 60 by a fixing member such as a bolt in a detachable connection manner or fixed to the support plate 60 by a non-detachable connection manner such as welding, and the support plate 60 provides a stable support structure for the guide device 20. The positioning hole 61 can provide an accurate positioning position for the guide tube 22, so that the guide device 20 can be inserted into the positioning hole 61 through the guide tube 22 to be installed in the correct position in the hot box 100, so as to reduce installation errors.

[0071] In some examples, the hot box 100 further includes: a mounting groove 41 formed in the box body 80, and a baffle 50 disposed on the box body 80; the hot rail 10 and the guide device 20 are disposed in the mounting groove 41, and the baffle 50 extends into the mounting groove 41 to clamp the side wall 212. The baffle 50 clamps the two opposing side walls 212 through physical force to firmly fix the guide device 20 in the mounting groove 41 to prevent the guide device 20 from loosening during the operation of the hot box 100. It should be noted that the transverse cross-sectional shape of the side wall 212 can be an arc-shaped structure, and the present invention does not limit the transverse cross-sectional shape of the side wall 212, as long as the baffle 50 can clamp and fix the guide device 20 in the mounting groove 41. In some examples, the guide device 20 can be fixed to the support plate 60 by a detachable connection method such as bolts, and the guide device 20 can be clamped and fixed in the installation groove 41 by a baffle 50, thereby achieving double fixation of the guide device 20 and greatly improving the installation stability of the guide device 20.

[0072] In some examples, reference Figure 4 As shown, the side wall 212 is constructed with a positioning portion 2121 extending toward the hot rail 10, and the positioning portion 2121 is connected to the hot rail 10. By connecting the positioning portion 2121 to the hot rail 10, the flow guide device 20 is fixed at a predetermined position, and the position of the flow guide device 20 in the hot box 100 is prevented from being offset, so that the flow guide device 20 can be stably maintained at a predetermined working position, and the oil pollution is guided and the discharge accuracy is ensured. For example, the positioning portion 2121 can be inserted into a plug-in slot (not shown) constructed by the hot rail 10 to achieve the purpose of maintaining the flow guide device 20 at a predetermined working position.

[0073] In some examples, reference Figure 1As shown, the heat box 100 also includes: a first suction pipe 70 that runs through the box body 80 and is connected to the guide pipe 22. According to different work requirements, the first suction pipe 70 can be connected to a negative pressure source (not shown) or not connected to a negative pressure source. When the first suction pipe 70 is connected to a negative pressure source (such as a vacuum pump), oil and smoke can be discharged from the heat box 100 through the guide pipe 22, so that the oil flowing to the guide pipe 22 can be extracted and discharged. When the first suction pipe 70 is not connected to a negative pressure source, the oil flowing to the guide pipe 22 flows into the first suction pipe 70 under the action of gravity to be discharged, and the heat loss in the heat box 100 caused by the oil smoke extraction operation is reduced, and the waste of heat caused thereby.

[0074] In some examples, reference Figure 1 As shown, the heat box 100 also includes: a second suction pipe 90 connected to the box body 80 and arranged away from the inclined guide portion 11, and the first suction pipe 70 and the second suction pipe 90 form the same or different suction forces on the box body 80. The first suction pipe 70 and the second suction pipe 90 are connected to the same negative pressure source; or, the first suction pipe 70 and the second suction pipe 90 are connected to different negative pressure sources. At this time, the negative pressure sources respectively connected to the first suction pipe 70 and the second suction pipe 90 form the same or different exhaust negative pressure and suction air volume. When the first suction pipe 70 and the second suction pipe 90 are connected to the same negative pressure source, the negative pressure source only needs to provide a constant and uniform pressure to achieve the same suction force of the first suction pipe 70 and the second suction pipe 90. And the negative pressure source can maintain a stable negative pressure state by providing a constant and uniform pressure, so that the power consumption of the negative pressure source can remain stable, which helps to reduce energy consumption and avoid the increase in energy consumption caused by power fluctuations, so as to achieve higher energy efficiency.

[0075] When the first suction pipe 70 and the second suction pipe 90 are connected to different negative pressure sources, the different negative pressure sources can also provide constant and uniform pressure to the first suction pipe 70 and the second suction pipe 90, so that the suction force of the first suction pipe 70 and the second suction pipe 90 is the same. In addition, the first suction pipe 70 and the second suction pipe 90 can adjust different suction forces according to their respective negative pressure sources. The power consumption of the negative pressure source will depend on the exhaust negative pressure and suction air volume it independently provides and forms. Each negative pressure source needs to provide different exhaust negative pressure and suction air volume according to the needs of the suction pipe to which it is connected (i.e., the first suction pipe 70 and the second suction pipe 90).

[0076] In some examples, the suction force formed by the second suction pipe 90 is greater than the suction force formed by the first suction pipe 70. Fig. 9As shown, a space area 802 is formed between the door panel 801 and the hot rail 10, and the first suction pipe 70 and the second suction pipe 90 are connected to different negative pressure sources. The suction force of the first suction pipe 70 and the second suction pipe 90 on the space area 802 is flexibly controlled by adjusting the pressure of the negative pressure source, so that the suction force formed by the second suction pipe 90 on the space area 802 is greater than the suction force formed by the first suction pipe 70 on the space area 802. The suction pipe opening (not shown) of the second suction pipe 90 extends into the space area 802 at the top of the box 80. According to the high temperature environment in the hot box 100, the high-temperature oil smoke will rise to the space area 802 at the top of the box 80, so that the second suction pipe 90 with a stronger suction force can discharge the oil smoke in the hot box 100 more effectively. The first suction pipe 70 with a smaller suction force, without forcibly sucking the oil fume, allows the oil dirt that naturally flows to the guide device 20 to flow into the first suction pipe 70 through the guide pipe 22 and be discharged, so as to reduce the heat loss in the hot box 100 caused by the oil fume extraction operation. The first suction pipe 70 provides a lower suction force than that formed by the second suction pipe 90, or the first suction pipe 70 is not connected to the negative pressure source, and the second suction pipe 90 provides a stronger suction force, so that the power output of the two negative pressure sources connected to the first suction pipe 70 and the second suction pipe 90 respectively matches the required suction force, avoiding excessive suction of hot air in the space area 802 and energy waste, thereby reducing the heat loss of the hot box 100 and the false twist texturing machine 1000 including the hot box 100, and reducing the energy consumption of the hot box 100 and the false twist texturing machine 1000.

[0077] Based on the same inventive concept, this embodiment also discloses a false twist texturing machine 1000. Fig.12 As shown, the false twist texturing machine 1000 includes: a yarn conveying device 200, a cooling device 300, a false twist device 400, and a heat box 100 disposed between the yarn conveying device 200 and the cooling device 300. The heat box 100, the cooling device 300, and the false twist device 400 are located behind the yarn conveying device 200. Since the yarn conveying device 200, the cooling device 400, and the false twist device 300 are prior art, they will not be described in detail here. The false twist texturing machine 1000 equipped with the heat box 100 can reduce heat loss and energy waste in actual applications, which is helpful to achieve energy saving and consumption reduction.

[0078] The specific technical solution of the heat box 100 included in the false twist texturing machine 1000 in this embodiment refers to any one of the aforementioned embodiments or any combination of several embodiments, which will not be repeated here.

[0079] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

[0080] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0081] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A hot box, characterized in that: include: A box body, a plurality of heat rails arranged in the box body, and a flow guide device arranged at the bottom of the heat rails; The flow guide device comprises: a flow guide wall arranged to be inclined downward relative to a horizontal plane, and a flow guide pipe connected to the flow guide wall; The bottom end of the hot rail close to the guide device is constructed with an inclined guide portion extending toward the guide wall, and one end of the guide wall close to the hot rail abuts against the inclined guide portion or partially extends into the inclined guide portion, so that the guide wall guides the oil from the inclined guide portion to the guide pipe.

2. The hot box according to claim 1, characterized in that The guide wall comprises: A bottom wall, the bottom wall abutting against the inclined guide portion or partially extending into the inclined guide portion, and two oppositely arranged side walls extending along the length direction of the bottom wall; The bottom wall and the side wall form a guide groove connected to the guide pipe to at least discharge oil and dirt from the box body.

3. The hot box according to claim 1, characterized in that The guide wall comprises: A bottom wall, the bottom wall abutting against the inclined guide portion or partially extending into the inclined guide portion, two oppositely arranged side walls extending along the length direction of the bottom wall, and a guide wall arranged on the bottom wall and inclined downward relative to a horizontal plane and laterally connecting the side walls; The side wall extends toward the hot rail and abuts against the inclined guide portion or partially extends into the inclined guide portion, and the bottom wall, the side wall and the guide wall form a guide groove connected to the guide pipe to at least discharge oil from the box body.

4. The hot box according to claim 2, characterized in that The flow guiding device further comprises: A guide wall disposed on the bottom wall and tilted downward relative to a horizontal plane and laterally connected to the side wall; The guide wall extends toward the hot rail and partially extends beyond a vertical normal line of a bottom end of the inclined guide portion, and the guide wall forms an obtuse angle with the vertical normal line.

5. The heat box according to claim 3, characterized in that: The guide wall extends toward the hot rail and partially extends beyond a vertical normal line of a bottom end of the inclined guide portion, and the guide wall forms an obtuse angle with the vertical normal line.

6. The heat box according to claim 3 or 4, characterized in that: The guide pipe is arranged on the bottom wall in an inclined manner downward relative to a horizontal plane, and the inner wall of the pipe opening at one end of the guide pipe connected to the bottom wall smoothly transitions to the inner wall of one side of the guide wall facing the hot rail.

7. The hot box according to any one of claims 1 to 3, characterized in that The heat box also includes: A support plate is arranged inside the box body and connected to the guide wall.

8. The hot box according to claim 2 or 3, characterized in that: The heat box further comprises: a mounting groove formed in the box body, and a baffle plate arranged on the box body; The heat rail and the guide device are arranged in the installation slot, and the baffle extends into the installation slot to clamp the side wall.

9. The hot box according to claim 8, characterized in that The side wall is configured with a positioning portion extending toward the thermal rail, and the positioning portion and the thermal rail are connected to each other.

10. The hot box according to claim 2 or 3, characterized in that: The heat box also includes: A first suction pipe runs through the box and is connected to the flow guide pipe.

11. The hot box according to claim 10, characterized in that The heat box also includes: A second suction pipe is connected to the box and is arranged away from the inclined guide portion, and the first suction pipe and the second suction pipe form the same or different suction forces.

12. The hot box according to claim 11, characterized in that The suction force generated by the second suction pipe is greater than the suction force generated by the first suction pipe.

13. The hot box according to claim 1, characterized in that The hot rail forms a channel for the chemical fiber to pass through, and a channel wall formed on both sides of the channel, and the channel wall and the end of the channel extend to the inclined guide portion; The width of the guide wall in the transverse direction is greater than the transverse width between the groove walls.

14. A false twist texturing machine, characterized in that: include: A yarn delivery device, a cooling device, a false twisting device, and a heat box as claimed in any one of claims 1 to 13 arranged between the yarn delivery device and the cooling device.

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